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| author | Ashish Chaudhari <ashish@ettus.com> | 2014-08-01 13:14:56 -0700 |
|---|---|---|
| committer | Ashish Chaudhari <ashish@ettus.com> | 2014-08-01 13:14:56 -0700 |
| commit | c7274790a0b8a812d731320c2b7711efa2e1daa7 (patch) | |
| tree | a4e341ffb7e441cf92d903c7dcb263aacf43d9ca /host/lib | |
| parent | 9eb403f4299ea036a8fff2dc22209d3ae06374ed (diff) | |
| download | uhd-c7274790a0b8a812d731320c2b7711efa2e1daa7.tar.gz uhd-c7274790a0b8a812d731320c2b7711efa2e1daa7.tar.bz2 uhd-c7274790a0b8a812d731320c2b7711efa2e1daa7.zip | |
b200: Moved AD9361 driver to host
- Switched to FPGA SPI engine
- Moved firmware AD9361 driver to UHD
- Bumped FW compat to 5, FPGA compat to 4
- Known Issue: AD9361 SPI rate is too slow
Diffstat (limited to 'host/lib')
18 files changed, 2872 insertions, 131 deletions
diff --git a/host/lib/usrp/b200/b200_iface.hpp b/host/lib/usrp/b200/b200_iface.hpp index 20b4a7a89..18d058386 100644 --- a/host/lib/usrp/b200/b200_iface.hpp +++ b/host/lib/usrp/b200/b200_iface.hpp @@ -35,8 +35,7 @@ static const std::string B200_FW_FILE_NAME = "usrp_b200_fw.hex"; static const std::string B200_FPGA_FILE_NAME = "usrp_b200_fpga.bin"; static const std::string B210_FPGA_FILE_NAME = "usrp_b210_fpga.bin"; -class UHD_API b200_iface: boost::noncopyable, public virtual uhd::i2c_iface, - public ad9361_ctrl_iface_type { +class UHD_API b200_iface: boost::noncopyable, public virtual uhd::i2c_iface { public: typedef boost::shared_ptr<b200_iface> sptr; diff --git a/host/lib/usrp/b200/b200_impl.cpp b/host/lib/usrp/b200/b200_impl.cpp index 245fbf4a9..04cb8062e 100644 --- a/host/lib/usrp/b200/b200_impl.cpp +++ b/host/lib/usrp/b200/b200_impl.cpp @@ -339,10 +339,18 @@ b200_impl::b200_impl(const device_addr_t &device_addr) _demux = recv_packet_demuxer_3000::make(_data_transport); //////////////////////////////////////////////////////////////////// + // create time and clock control objects + //////////////////////////////////////////////////////////////////// + _spi_iface = spi_core_3000::make(_local_ctrl, TOREG(SR_CORE_SPI), RB32_CORE_SPI); + _spi_iface->set_divider(B200_BUS_CLOCK_RATE/ADF4001_SPI_RATE); + _adf4001_iface = boost::shared_ptr<adf4001_ctrl>(new adf4001_ctrl(_spi_iface, ADF4001_SLAVENO)); + + //////////////////////////////////////////////////////////////////// // Init codec - turns on clocks //////////////////////////////////////////////////////////////////// UHD_MSG(status) << "Initialize CODEC control..." << std::endl; - _codec_ctrl = ad9361_ctrl::make(_iface); + _codec_ctrl = ad9361_ctrl::make( + ad9361_ctrl_transport::make_software_spi(AD9361_B200, _spi_iface, AD9361_SLAVENO)); this->reset_codec_dcm(); //////////////////////////////////////////////////////////////////// @@ -405,13 +413,6 @@ b200_impl::b200_impl(const device_addr_t &device_addr) } _codec_ctrl->data_port_loopback(false); - //////////////////////////////////////////////////////////////////// - // create time and clock control objects - //////////////////////////////////////////////////////////////////// - _spi_iface = spi_core_3000::make(_local_ctrl, TOREG(SR_CORE_SPI), RB32_CORE_SPI); - _spi_iface->set_divider(B200_BUS_CLOCK_RATE/ADF4001_SPI_RATE); - _adf4001_iface = boost::shared_ptr<adf4001_ctrl>(new adf4001_ctrl(_spi_iface, ADF4001_SLAVENO)); - //register time now and pps onto available radio cores _tree->create<time_spec_t>(mb_path / "time" / "now") .publish(boost::bind(&time_core_3000::get_time_now, _radio_perifs[0].time64)); diff --git a/host/lib/usrp/b200/b200_impl.hpp b/host/lib/usrp/b200/b200_impl.hpp index c3508c550..b319c230c 100644 --- a/host/lib/usrp/b200/b200_impl.hpp +++ b/host/lib/usrp/b200/b200_impl.hpp @@ -44,9 +44,9 @@ #include <uhd/transport/bounded_buffer.hpp> #include <boost/weak_ptr.hpp> #include "recv_packet_demuxer_3000.hpp" -static const boost::uint8_t B200_FW_COMPAT_NUM_MAJOR = 0x04; +static const boost::uint8_t B200_FW_COMPAT_NUM_MAJOR = 0x05; static const boost::uint8_t B200_FW_COMPAT_NUM_MINOR = 0x00; -static const boost::uint16_t B200_FPGA_COMPAT_NUM = 0x03; +static const boost::uint16_t B200_FPGA_COMPAT_NUM = 0x04; static const double B200_BUS_CLOCK_RATE = 100e6; static const double B200_DEFAULT_TICK_RATE = 32e6; static const boost::uint32_t B200_GPSDO_ST_NONE = 0x83; diff --git a/host/lib/usrp/b200/b200_regs.hpp b/host/lib/usrp/b200/b200_regs.hpp index c64066b27..2f4373409 100644 --- a/host/lib/usrp/b200/b200_regs.hpp +++ b/host/lib/usrp/b200/b200_regs.hpp @@ -52,6 +52,7 @@ localparam RB64_TIME_PPS = 16; localparam RB64_CODEC_READBACK = 24; //pll constants +static const int AD9361_SLAVENO = (1 << 0); static const int ADF4001_SLAVENO = (1 << 1); static const double ADF4001_SPI_RATE = 10e3; //slow for large time constant on spi lines diff --git a/host/lib/usrp/common/CMakeLists.txt b/host/lib/usrp/common/CMakeLists.txt index b99464873..b40c16121 100644 --- a/host/lib/usrp/common/CMakeLists.txt +++ b/host/lib/usrp/common/CMakeLists.txt @@ -27,13 +27,22 @@ IF(ENABLE_USB) ENDIF(ENABLE_USB) INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR}) +INCLUDE_DIRECTORIES("${CMAKE_CURRENT_SOURCE_DIR}/ad9361_driver") LIBUHD_APPEND_SOURCES( ${CMAKE_CURRENT_SOURCE_DIR}/adf4001_ctrl.cpp ${CMAKE_CURRENT_SOURCE_DIR}/adf435x_common.cpp ${CMAKE_CURRENT_SOURCE_DIR}/ad9361_ctrl.cpp + ${CMAKE_CURRENT_SOURCE_DIR}/ad9361_driver/ad9361_impl.c + ${CMAKE_CURRENT_SOURCE_DIR}/ad9361_platform_uhd.cpp + ${CMAKE_CURRENT_SOURCE_DIR}/ad9361_client.cpp ${CMAKE_CURRENT_SOURCE_DIR}/apply_corrections.cpp ${CMAKE_CURRENT_SOURCE_DIR}/validate_subdev_spec.cpp ${CMAKE_CURRENT_SOURCE_DIR}/recv_packet_demuxer.cpp ${CMAKE_CURRENT_SOURCE_DIR}/fifo_ctrl_excelsior.cpp ) + +SET_SOURCE_FILES_PROPERTIES( + ${CMAKE_CURRENT_SOURCE_DIR}/ad9361_driver/ad9361_impl.c + PROPERTIES LANGUAGE CXX +)
\ No newline at end of file diff --git a/host/lib/usrp/common/ad9361_client.cpp b/host/lib/usrp/common/ad9361_client.cpp new file mode 100644 index 000000000..c0cc61585 --- /dev/null +++ b/host/lib/usrp/common/ad9361_client.cpp @@ -0,0 +1,56 @@ +// +// Copyright 2014 Ettus Research LLC +// + +#include <ad9361_client.h> + +double ad9361_client_get_band_edge(ad9361_product_t product, frequency_band_t band) +{ + switch (product) { + default: + switch (band) { + case AD9361_RX_BAND0: return 2.2e9; + case AD9361_RX_BAND1: return 4.0e9; + case AD9361_TX_BAND0: return 2.5e9; + default: return 0; + } + } +} + +clocking_mode_t ad9361_client_get_clocking_mode(ad9361_product_t product) +{ + switch (product) { + case AD9361_B200: + return AD9361_XTAL_N_CLK_PATH; + default: + return AD9361_XTAL_N_CLK_PATH; + } +} + +digital_interface_mode_t ad9361_client_get_digital_interface_mode(ad9361_product_t product) +{ + switch (product) { + case AD9361_B200: return AD9361_DDR_FDD_LVCMOS; + default: return AD9361_DDR_FDD_LVCMOS; + } +} + +digital_interface_delays_t ad9361_client_get_digital_interface_timing(ad9361_product_t product) +{ + digital_interface_delays_t delays; + switch (product) { + case AD9361_B200: + delays.rx_clk_delay = 0; + delays.rx_data_delay = 0xF; + delays.tx_clk_delay = 0; + delays.tx_data_delay = 0xF; + break; + default: + delays.rx_clk_delay = 0; + delays.rx_data_delay = 0; + delays.tx_clk_delay = 0; + delays.tx_data_delay = 0; + break; + } + return delays; +} diff --git a/host/lib/usrp/common/ad9361_ctrl.cpp b/host/lib/usrp/common/ad9361_ctrl.cpp index 10496f2a9..4cdfaa6e1 100644 --- a/host/lib/usrp/common/ad9361_ctrl.cpp +++ b/host/lib/usrp/common/ad9361_ctrl.cpp @@ -1,42 +1,169 @@ // -// Copyright 2012-2013 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/>. +// Copyright 2014 Ettus Research LLC // #include "ad9361_ctrl.hpp" #include "ad9361_transaction.h" +#include "ad9361_dispatch.h" +#include <ad9361_platform.h> #include <uhd/exception.hpp> #include <uhd/types/ranges.hpp> #include <uhd/utils/msg.hpp> +#include <uhd/types/serial.hpp> #include <boost/thread/mutex.hpp> #include <boost/format.hpp> #include <cstring> +#include <boost/utility.hpp> +#include <boost/function.hpp> + +using namespace uhd; + +/*********************************************************************** + * AD9361 IO Implementation Classes + **********************************************************************/ + +class ad9361_io_spi : public ad9361_io +{ +public: + ad9361_io_spi(uhd::spi_iface::sptr spi_iface, uint32_t slave_num) : + _spi_iface(spi_iface), _slave_num(slave_num) { } + + uint8_t peek8(uint32_t reg) + { + uhd::spi_config_t config; + config.mosi_edge = uhd::spi_config_t::EDGE_FALL; + config.miso_edge = uhd::spi_config_t::EDGE_FALL; //TODO (Ashish): FPGA SPI workaround. This should be EDGE_RISE + + uint32_t rd_word = AD9361_SPI_READ_CMD | + ((uint32_t(reg) << AD9361_SPI_ADDR_SHIFT) & AD9361_SPI_ADDR_MASK); + + uint32_t val = (_spi_iface->read_spi(_slave_num, config, rd_word, AD9361_SPI_NUM_BITS)); + val &= 0xFF; + + return static_cast<uint8_t>(val); + } + + void poke8(uint32_t reg, uint8_t val) + { + uhd::spi_config_t config; + config.mosi_edge = uhd::spi_config_t::EDGE_FALL; + config.miso_edge = uhd::spi_config_t::EDGE_FALL; //TODO (Ashish): FPGA SPI workaround. This should be EDGE_RISE + + uint32_t wr_word = AD9361_SPI_WRITE_CMD | + ((uint32_t(reg) << AD9361_SPI_ADDR_SHIFT) & AD9361_SPI_ADDR_MASK) | + ((uint32_t(val) << AD9361_SPI_DATA_SHIFT) & AD9361_SPI_DATA_MASK); + _spi_iface->write_spi(_slave_num, config, wr_word, AD9361_SPI_NUM_BITS); + + //TODO (Ashish): Is this necessary? The FX3 firmware does it right now but for + //networked devices, it makes writes blocking which will considerably slow down the programming + peek8(reg); + } +private: + uhd::spi_iface::sptr _spi_iface; + uint32_t _slave_num; + + static const uint32_t AD9361_SPI_WRITE_CMD = 0x00800000; + static const uint32_t AD9361_SPI_READ_CMD = 0x00000000; + static const uint32_t AD9361_SPI_ADDR_MASK = 0x003FFF00; + static const uint32_t AD9361_SPI_ADDR_SHIFT = 8; + static const uint32_t AD9361_SPI_DATA_MASK = 0x000000FF; + static const uint32_t AD9361_SPI_DATA_SHIFT = 0; + static const uint32_t AD9361_SPI_NUM_BITS = 24; +}; + +/*********************************************************************** + * AD9361 Transport Implementation Classes + **********************************************************************/ + +//---------------------------------------------------------------------- +//Over a zero-copy device transport +//---------------------------------------------------------------------- +class ad9361_ctrl_transport_zc_impl : public ad9361_ctrl_transport +{ +public: + ad9361_ctrl_transport_zc_impl(uhd::transport::zero_copy_if::sptr xport) + { + _xport = xport; + } + + void ad9361_transact(const unsigned char in_buff[AD9361_DISPATCH_PACKET_SIZE], unsigned char out_buff[AD9361_DISPATCH_PACKET_SIZE]) + { + { + uhd::transport::managed_send_buffer::sptr buff = _xport->get_send_buff(10.0); + if (not buff or buff->size() < AD9361_DISPATCH_PACKET_SIZE) throw std::runtime_error("ad9361_ctrl_over_zc send timeout"); + std::memcpy(buff->cast<void *>(), in_buff, AD9361_DISPATCH_PACKET_SIZE); + buff->commit(AD9361_DISPATCH_PACKET_SIZE); + } + { + uhd::transport::managed_recv_buffer::sptr buff = _xport->get_recv_buff(10.0); + if (not buff or buff->size() < AD9361_DISPATCH_PACKET_SIZE) throw std::runtime_error("ad9361_ctrl_over_zc recv timeout"); + std::memcpy(out_buff, buff->cast<const void *>(), AD9361_DISPATCH_PACKET_SIZE); + } + } + + uint64_t get_device_handle() + { + return 0; //Unused for zero-copy transport because chip class is in FW + } + +private: + uhd::transport::zero_copy_if::sptr _xport; +}; -//! compat strnlen for platforms that dont have it -static size_t my_strnlen(const char *str, size_t max) +//---------------------------------------------------------------------- +//Over a software transport +//---------------------------------------------------------------------- +class ad9361_ctrl_transport_sw_spi_impl : public ad9361_ctrl_transport { - const char *end = (const char *)std::memchr((const void *)str, 0, max); - if (end == NULL) return max; - return (size_t)(end - str); +public: + ad9361_ctrl_transport_sw_spi_impl( + ad9361_product_t product, + uhd::spi_iface::sptr spi_iface, + boost::uint32_t slave_num) : + _io_iface(spi_iface, slave_num) + { + _device.product = product; + _device.io_iface = reinterpret_cast<void*>(&_io_iface); + } + + void ad9361_transact(const unsigned char in_buff[AD9361_DISPATCH_PACKET_SIZE], unsigned char out_buff[AD9361_DISPATCH_PACKET_SIZE]) + { + ad9361_dispatch((const char*)in_buff, (char*)out_buff); + } + + uint64_t get_device_handle() + { + return reinterpret_cast<uint64_t>(reinterpret_cast<void*>(&_device)); + } + +private: + ad9361_device_t _device; + ad9361_io_spi _io_iface; +}; + +//---------------------------------------------------------------------- +// Make an instance of the AD9361 Transport +//---------------------------------------------------------------------- +ad9361_ctrl_transport::sptr ad9361_ctrl_transport::make_zero_copy(uhd::transport::zero_copy_if::sptr xport) +{ + return sptr(new ad9361_ctrl_transport_zc_impl(xport)); } -using namespace uhd; +ad9361_ctrl_transport::sptr ad9361_ctrl_transport::make_software_spi( + ad9361_product_t product, + uhd::spi_iface::sptr spi_iface, + boost::uint32_t slave_num) +{ + return sptr(new ad9361_ctrl_transport_sw_spi_impl(product, spi_iface, slave_num)); +} -struct ad9361_ctrl_impl : public ad9361_ctrl +/*********************************************************************** + * AD9361 Software API Class + **********************************************************************/ +class ad9361_ctrl_impl : public ad9361_ctrl { - ad9361_ctrl_impl(ad9361_ctrl_iface_sptr iface): +public: + ad9361_ctrl_impl(ad9361_ctrl_transport::sptr iface): _iface(iface), _seq(0) { ad9361_transaction_t request; @@ -129,17 +256,21 @@ struct ad9361_ctrl_impl : public ad9361_ctrl boost::mutex::scoped_lock lock(_mutex); //declare in/out buffers - unsigned char in_buff[64] = {}; - unsigned char out_buff[64] = {}; + unsigned char in_buff[AD9361_DISPATCH_PACKET_SIZE] = {}; + unsigned char out_buff[AD9361_DISPATCH_PACKET_SIZE] = {}; //copy the input transaction std::memcpy(in_buff, &request, sizeof(request)); - + //fill in other goodies ad9361_transaction_t *in = (ad9361_transaction_t *)in_buff; + in->handle = _iface->get_device_handle(); in->version = AD9361_TRANSACTION_VERSION; in->sequence = _seq++; + //initialize error message to "no error" + std::memset(in->error_msg, 0, AD9361_TRANSACTION_MAX_ERROR_MSG); + //transact _iface->ad9361_transact(in_buff, out_buff); ad9361_transaction_t *out = (ad9361_transaction_t *)out_buff; @@ -157,17 +288,24 @@ struct ad9361_ctrl_impl : public ad9361_ctrl return *out; } - ad9361_ctrl_iface_sptr _iface; - size_t _seq; - boost::mutex _mutex; +private: + //! compat strnlen for platforms that dont have it + static size_t my_strnlen(const char *str, size_t max) + { + const char *end = (const char *)std::memchr((const void *)str, 0, max); + if (end == NULL) return max; + return (size_t)(end - str); + } + ad9361_ctrl_transport::sptr _iface; + size_t _seq; + boost::mutex _mutex; }; - -/*********************************************************************** - * Make an instance of the implementation - **********************************************************************/ -ad9361_ctrl::sptr ad9361_ctrl::make(ad9361_ctrl_iface_sptr iface) +//---------------------------------------------------------------------- +// Make an instance of the AD9361 Control interface +//---------------------------------------------------------------------- +ad9361_ctrl::sptr ad9361_ctrl::make(ad9361_ctrl_transport::sptr iface) { return sptr(new ad9361_ctrl_impl(iface)); } diff --git a/host/lib/usrp/common/ad9361_ctrl.hpp b/host/lib/usrp/common/ad9361_ctrl.hpp index 098b5dae8..4a920a73f 100644 --- a/host/lib/usrp/common/ad9361_ctrl.hpp +++ b/host/lib/usrp/common/ad9361_ctrl.hpp @@ -1,79 +1,62 @@ // -// Copyright 2012-2013 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/>. +// Copyright 2014 Ettus Research LLC // #ifndef INCLUDED_AD9361_CTRL_HPP #define INCLUDED_AD9361_CTRL_HPP #include <uhd/transport/zero_copy.hpp> -#include <uhd/types/serial.hpp> #include <uhd/types/ranges.hpp> +#include <uhd/types/serial.hpp> #include <boost/shared_ptr.hpp> -#include <boost/utility.hpp> -#include <boost/function.hpp> -#include <vector> +#include <ad9361_device.h> #include <string> - +#include <stdint.h> #include "ad9361_transaction.h" - static const double AD9361_CLOCK_RATE_MAX = 61.44e6; static const double AD9361_1_CHAN_CLOCK_RATE_MAX = AD9361_CLOCK_RATE_MAX; static const double AD9361_2_CHAN_CLOCK_RATE_MAX = (AD9361_1_CHAN_CLOCK_RATE_MAX / 2); - -struct ad9361_ctrl_iface_type +/*********************************************************************** + * AD9361 Transport Interface + **********************************************************************/ +class ad9361_io { - virtual void ad9361_transact(const unsigned char in_buff[AD9361_DISPATCH_PACKET_SIZE], unsigned char out_buff[AD9361_DISPATCH_PACKET_SIZE]) = 0; +public: + virtual uint8_t peek8(uint32_t reg) = 0; + virtual void poke8(uint32_t reg, uint8_t val) = 0; }; -typedef boost::shared_ptr<ad9361_ctrl_iface_type> ad9361_ctrl_iface_sptr; - -struct ad9361_ctrl_over_zc : ad9361_ctrl_iface_type +/*********************************************************************** + * AD9361 Transport Interface + **********************************************************************/ +class ad9361_ctrl_transport { - ad9361_ctrl_over_zc(uhd::transport::zero_copy_if::sptr xport) - { - _xport = xport; - } +public: + typedef boost::shared_ptr<ad9361_ctrl_transport> sptr; - void ad9361_transact(const unsigned char in_buff[AD9361_DISPATCH_PACKET_SIZE], unsigned char out_buff[AD9361_DISPATCH_PACKET_SIZE]) - { - { - uhd::transport::managed_send_buffer::sptr buff = _xport->get_send_buff(10.0); - if (not buff or buff->size() < AD9361_DISPATCH_PACKET_SIZE) throw std::runtime_error("ad9361_ctrl_over_zc send timeout"); - std::memcpy(buff->cast<void *>(), in_buff, AD9361_DISPATCH_PACKET_SIZE); - buff->commit(AD9361_DISPATCH_PACKET_SIZE); - } - { - uhd::transport::managed_recv_buffer::sptr buff = _xport->get_recv_buff(10.0); - if (not buff or buff->size() < AD9361_DISPATCH_PACKET_SIZE) throw std::runtime_error("ad9361_ctrl_over_zc recv timeout"); - std::memcpy(out_buff, buff->cast<const void *>(), AD9361_DISPATCH_PACKET_SIZE); - } - } + virtual uint64_t get_device_handle() = 0; + virtual void ad9361_transact(const unsigned char in_buff[AD9361_DISPATCH_PACKET_SIZE], unsigned char out_buff[AD9361_DISPATCH_PACKET_SIZE]) = 0; - uhd::transport::zero_copy_if::sptr _xport; + static ad9361_ctrl_transport::sptr make_zero_copy( + uhd::transport::zero_copy_if::sptr xport); + static ad9361_ctrl_transport::sptr make_software_spi( + ad9361_product_t product, + uhd::spi_iface::sptr spi_iface, + boost::uint32_t slave_num); }; - -class ad9361_ctrl : boost::noncopyable{ +/*********************************************************************** + * AD9361 Control Interface + **********************************************************************/ +class ad9361_ctrl : public boost::noncopyable +{ public: typedef boost::shared_ptr<ad9361_ctrl> sptr; //! make a new codec control object - static sptr make(ad9361_ctrl_iface_sptr iface); + static sptr make(ad9361_ctrl_transport::sptr iface); //! Get a list of gain names for RX or TX static std::vector<std::string> get_gain_names(const std::string &/*which*/) diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_client.h b/host/lib/usrp/common/ad9361_driver/ad9361_client.h new file mode 100644 index 000000000..300fdb2a5 --- /dev/null +++ b/host/lib/usrp/common/ad9361_driver/ad9361_client.h @@ -0,0 +1,59 @@ +// +// Copyright 2014 Ettus Research LLC +// + +#ifndef INCLUDED_AD9361_CLIENT_SETTINGS_H +#define INCLUDED_AD9361_CLIENT_SETTINGS_H + +#include <stdint.h> +#include <ad9361_device.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/*! + * Frequency band settings + */ +typedef enum { + AD9361_RX_BAND0, + AD9361_RX_BAND1, + AD9361_TX_BAND0 +} frequency_band_t; + +double ad9361_client_get_band_edge(ad9361_product_t product, frequency_band_t band); + +/*! + * Clocking mode + */ +typedef enum { + AD9361_XTAL_P_CLK_PATH, + AD9361_XTAL_N_CLK_PATH +} clocking_mode_t; + +clocking_mode_t ad9361_client_get_clocking_mode(ad9361_product_t product); + +/*! + * Digital interface specific + */ +typedef enum { + AD9361_DDR_FDD_LVCMOS, + AD9361_DDR_FDD_LVDS +} digital_interface_mode_t; + +digital_interface_mode_t ad9361_client_get_digital_interface_mode(ad9361_product_t product); + +typedef struct { + uint8_t rx_clk_delay; + uint8_t rx_data_delay; + uint8_t tx_clk_delay; + uint8_t tx_data_delay; +} digital_interface_delays_t; + +digital_interface_delays_t ad9361_client_get_digital_interface_timing(ad9361_product_t product); + +#ifdef __cplusplus +} +#endif + +#endif /* INCLUDED_AD9361_CLIENT_SETTINGS_H */ diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_device.h b/host/lib/usrp/common/ad9361_driver/ad9361_device.h new file mode 100644 index 000000000..0cb4b32a4 --- /dev/null +++ b/host/lib/usrp/common/ad9361_driver/ad9361_device.h @@ -0,0 +1,53 @@ +// +// Copyright 2014 Ettus Research LLC +// + +#ifndef INCLUDED_AD9361_CHIP_H +#define INCLUDED_AD9361_CHIP_H + +#include <stdint.h> + +#ifdef __cplusplus +extern "C" { +#endif + +typedef enum { + AD9361_GENERIC, AD9361_B200 +} ad9361_product_t; + +//////////////////////////////////////////////////////////// +// shadow registers +typedef struct { + uint8_t vcodivs; + uint8_t inputsel; + uint8_t rxfilt; + uint8_t txfilt; + uint8_t bbpll; + uint8_t bbftune_config; + uint8_t bbftune_mode; +} ad9361_chip_regs_t; + +//////////////////////////////////////////////////////////// +// other private data fields for VRQ handler +typedef struct { + //Product + ad9361_product_t product; + //Intermediate state + double rx_freq, tx_freq, req_rx_freq, req_tx_freq; + double baseband_bw, bbpll_freq, adcclock_freq; + double req_clock_rate, req_coreclk; + uint16_t rx_bbf_tunediv; + uint8_t curr_gain_table; + uint32_t rx1_gain, rx2_gain, tx1_gain, tx2_gain; + int32_t tfir_factor; + //Register soft-copies + ad9361_chip_regs_t regs; + //IO Interface + void* io_iface; +} ad9361_device_t; + +#ifdef __cplusplus +} +#endif + +#endif /* INCLUDED_AD9361_CHIP_H */ diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_dispatch.h b/host/lib/usrp/common/ad9361_driver/ad9361_dispatch.h new file mode 100644 index 000000000..552405763 --- /dev/null +++ b/host/lib/usrp/common/ad9361_driver/ad9361_dispatch.h @@ -0,0 +1,24 @@ +// +// Copyright 2014 Ettus Research LLC +// + +#ifndef INCLUDED_AD9361_DISPATCH_H +#define INCLUDED_AD9361_DISPATCH_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include <ad9361_transaction.h> + +extern void ad9361_dispatch(const char* request, char* response); + +typedef void (*msgfn)(const char*, ...); + +extern void ad9361_set_msgfn(msgfn pfn); + +#ifdef __cplusplus +} +#endif + +#endif /* INCLUDED_AD9361_DISPATCH_H */ diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_filter_taps.h b/host/lib/usrp/common/ad9361_driver/ad9361_filter_taps.h new file mode 100644 index 000000000..2b4374025 --- /dev/null +++ b/host/lib/usrp/common/ad9361_driver/ad9361_filter_taps.h @@ -0,0 +1,71 @@ +// +// Copyright 2014 Ettus Research LLC +// + +#ifndef INCLUDED_AD9361_FILTER_TAPS_HPP +#define INCLUDED_AD9361_FILTER_TAPS_HPP + +/* A default 128-tap filter that can be used for generic circumstances. */ +/* static uint16_t default_128tap_coeffs[] = { + 0x0001,0xfff1,0xffcf,0xffc0,0xffe8,0x0020,0x001a,0xffe3, + 0xffe1,0x001f,0x0028,0xffdf,0xffcc,0x0024,0x0043,0xffdb, + 0xffac,0x0026,0x0068,0xffdb,0xff80,0x0022,0x009a,0xffe2, + 0xff47,0x0017,0x00db,0xfff3,0xfeff,0xffff,0x012b,0x0013, + 0xfea5,0xffd7,0x0190,0x0046,0xfe35,0xff97,0x020e,0x0095, + 0xfda7,0xff36,0x02ae,0x010d,0xfcf0,0xfea1,0x0383,0x01c6, + 0xfbf3,0xfdb6,0x04b7,0x02f8,0xfa6d,0xfc1a,0x06be,0x0541, + 0xf787,0xf898,0x0b60,0x0b6d,0xee88,0xea40,0x2786,0x7209 +}; +*/ + +/* The below pair of filters is from ADI and "optimized for a 10MHz LTE application". */ +/* +static uint16_t lte10mhz_rx_coeffs[] = { + 0xffe2,0x0042,0x0024,0x0095,0x0056,0x004d,0xffcf,0xffb7, + 0xffb1,0x0019,0x0059,0x006a,0x0004,0xff9d,0xff72,0xffd4, + 0x0063,0x00b7,0x0062,0xffac,0xff21,0xff59,0x0032,0x0101, + 0x00f8,0x0008,0xfeea,0xfeac,0xffa3,0x0117,0x01b5,0x00d0, + 0xff05,0xfdea,0xfe9e,0x00ba,0x026f,0x0215,0xffb5,0xfd4a, + 0xfd18,0xffa0,0x02de,0x03dc,0x0155,0xfd2a,0xfb0d,0xfd54, + 0x0287,0x062f,0x048a,0xfe37,0xf862,0xf8c1,0x004d,0x0963, + 0x0b88,0x02a4,0xf3e7,0xebdd,0xf5f8,0x1366,0x3830,0x518b +}; + +static uint16_t lte10mhz_tx_coeffs[] = { + 0xfffb,0x0000,0x0004,0x0017,0x0024,0x0028,0x0013,0xfff3, + 0xffdc,0xffe5,0x000b,0x0030,0x002e,0xfffe,0xffc4,0xffb8, + 0xfff0,0x0045,0x0068,0x002b,0xffb6,0xff72,0xffad,0x0047, + 0x00b8,0x0088,0xffc8,0xff1c,0xff33,0x001a,0x0110,0x0124, + 0x0019,0xfec8,0xfe74,0xff9a,0x0156,0x0208,0x00d3,0xfe9b, + 0xfd68,0xfe96,0x015d,0x033f,0x0236,0xfecd,0xfc00,0xfcb5, + 0x00d7,0x04e5,0x04cc,0xffd5,0xf9fe,0xf8fb,0xfef2,0x078c, + 0x0aae,0x036d,0xf5c0,0xed89,0xf685,0x12af,0x36a4,0x4faa +}; +*/ + + +/* 127 tap Halfband designed with: round(2^16 * halfgen4(0.9/4,32)) (center tap tweaked to 32767) */ +static int16_t hb127_coeffs[] = { + -0,0,1,-0,-2,0,3,-0,-5,0,8,-0,-11,0,17,-0,-24,0,33,-0,-45,0,61,-0,-80,0,104,-0,-134,0,169,-0, + -213,0,264,-0,-327,0,401,-0,-489,0,595,-0,-724,0,880,-0,-1075,0,1323,-0,-1652,0,2114,-0,-2819,0,4056,-0,-6883,0,20837,32767, + 20837,0,-6883,-0,4056,0,-2819,-0,2114,0,-1652,-0,1323,0,-1075,-0,880,0,-724,-0,595,0,-489,-0,401,0,-327,-0,264,0,-213,-0, + 169,0,-134,-0,104,0,-80,-0,61,0,-45,-0,33,0,-24,-0,17,0,-11,-0,8,0,-5,-0,3,0,-2,-0,1,0,-0, 0 }; + +/* 95 tap Halfband designed with: round(2^16 * halfgen4(0.9/4,24)) (center tap tweaked to 32767) */ +static int16_t hb95_coeffs[] = { + -4,0,8,-0,-14,0,23,-0,-36,0,52,-0,-75,0,104,-0,-140,0,186,-0,-243,0,314,-0,-400,0,505,-0,-634,0,793,-0, + -993,0,1247,-0,-1585,0,2056,-0,-2773,0,4022,-0,-6862,0,20830,32767,20830,0,-6862,-0,4022,0,-2773,-0,2056,0,-1585,-0,1247,0,-993,-0, + 793,0,-634,-0,505,0,-400,-0,314,0,-243,-0,186,0,-140,-0,104,0,-75,-0,52,0,-36,-0,23,0,-14,-0,8,0,-4,0}; + +/* 63 tap Halfband designed with: round(2^16 * halfgen4(0.9/4,16)) (center tap tweaked to 32767) */ +static int16_t hb63_coeffs[] = { + -58,0,83,-0,-127,0,185,-0,-262,0,361,-0,-488,0,648,-0,-853,0,1117,-0,-1466,0,1954,-0,-2689,0,3960,-0,-6825,0,20818,32767, + 20818,0,-6825,-0,3960,0,-2689,-0,1954,0,-1466,-0,1117,0,-853,-0,648,0,-488,-0,361,0,-262,-0,185,0,-127,-0,83,0,-58,0}; + +/* 47 tap Halfband designed with: round(2^16 * halfgen4(0.85/4,12)) (center tap tweaked to 32767) */ +static int16_t hb47_coeffs[] = { + -50,0,98,-0,-181,0,307,-0,-489,0,747,-0,-1109,0,1628,-0,-2413,0,3750,-0,-6693,0,20773,32767,20773,0,-6693,-0,3750,0,-2413,-0, + 1628,0,-1109,-0,747,0,-489,-0,307,0,-181,-0,98,0,-50,0}; + + +#endif // INCLUDED_AD9361_FILTER_TAPS_HPP diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_gain_tables.h b/host/lib/usrp/common/ad9361_driver/ad9361_gain_tables.h new file mode 100644 index 000000000..d38efd11d --- /dev/null +++ b/host/lib/usrp/common/ad9361_driver/ad9361_gain_tables.h @@ -0,0 +1,95 @@ +// +// Copyright 2014 Ettus Research LLC +// + +#ifndef INCLUDED_AD9361_GAIN_TABLES_HPP +#define INCLUDED_AD9361_GAIN_TABLES_HPP + +uint8_t gain_table_sub_1300mhz[77][5] = { {0,0x00,0x00,0x20,1}, + {1,0x00,0x00,0x00,0}, {2,0x00,0x00,0x00,0}, {3,0x00,0x01,0x00,0}, + {4,0x00,0x02,0x00,0}, {5,0x00,0x03,0x00,0}, {6,0x00,0x04,0x00,0}, + {7,0x00,0x05,0x00,0}, {8,0x01,0x03,0x20,1}, {9,0x01,0x04,0x00,0}, + {10,0x01,0x05,0x00,0}, {11,0x01,0x06,0x00,0}, {12,0x01,0x07,0x00,0}, + {13,0x01,0x08,0x00,0}, {14,0x01,0x09,0x00,0}, {15,0x01,0x0A,0x00,0}, + {16,0x01,0x0B,0x00,0}, {17,0x01,0x0C,0x00,0}, {18,0x01,0x0D,0x00,0}, + {19,0x01,0x0E,0x00,0}, {20,0x02,0x09,0x20,1}, {21,0x02,0x0A,0x00,0}, + {22,0x02,0x0B,0x00,0}, {23,0x02,0x0C,0x00,0}, {24,0x02,0x0D,0x00,0}, + {25,0x02,0x0E,0x00,0}, {26,0x02,0x0F,0x00,0}, {27,0x02,0x10,0x00,0}, + {28,0x02,0x2B,0x20,1}, {29,0x02,0x2C,0x00,0}, {30,0x04,0x27,0x20,1}, + {31,0x04,0x28,0x00,0}, {32,0x04,0x29,0x00,0}, {33,0x04,0x2A,0x00,0}, + {34,0x04,0x2B,0x00,1}, {35,0x24,0x21,0x20,0}, {36,0x24,0x22,0x00,1}, + {37,0x44,0x20,0x20,0}, {38,0x44,0x21,0x00,0}, {39,0x44,0x22,0x00,0}, + {40,0x44,0x23,0x00,0}, {41,0x44,0x24,0x00,0}, {42,0x44,0x25,0x00,0}, + {43,0x44,0x26,0x00,0}, {44,0x44,0x27,0x00,0}, {45,0x44,0x28,0x00,0}, + {46,0x44,0x29,0x00,0}, {47,0x44,0x2A,0x00,0}, {48,0x44,0x2B,0x00,0}, + {49,0x44,0x2C,0x00,0}, {50,0x44,0x2D,0x00,0}, {51,0x44,0x2E,0x00,0}, + {52,0x44,0x2F,0x00,0}, {53,0x44,0x30,0x00,0}, {54,0x44,0x31,0x00,0}, + {55,0x64,0x2E,0x20,1}, {56,0x64,0x2F,0x00,0}, {57,0x64,0x30,0x00,0}, + {58,0x64,0x31,0x00,0}, {59,0x64,0x32,0x00,0}, {60,0x64,0x33,0x00,0}, + {61,0x64,0x34,0x00,0}, {62,0x64,0x35,0x00,0}, {63,0x64,0x36,0x00,0}, + {64,0x64,0x37,0x00,0}, {65,0x64,0x38,0x00,0}, {66,0x65,0x38,0x20,1}, + {67,0x66,0x38,0x20,1}, {68,0x67,0x38,0x20,1}, {69,0x68,0x38,0x20,1}, + {70,0x69,0x38,0x20,1}, {71,0x6A,0x38,0x20,1}, {72,0x6B,0x38,0x20,1}, + {73,0x6C,0x38,0x20,1}, {74,0x6D,0x38,0x20,1}, {75,0x6E,0x38,0x20,1}, + {76,0x6F,0x38,0x20,1}}; + + +uint8_t gain_table_1300mhz_to_4000mhz[77][5] = { {0,0x00,0x00,0x20,1}, + {1,0x00,0x00,0x00,0}, {2,0x00,0x00,0x00,0}, {3,0x00,0x01,0x00,0}, + {4,0x00,0x02,0x00,0}, {5,0x00,0x03,0x00,0}, {6,0x00,0x04,0x00,0}, + {7,0x00,0x05,0x00,0}, {8,0x01,0x03,0x20,1}, {9,0x01,0x04,0x00,0}, + {10,0x01,0x05,0x00,0}, {11,0x01,0x06,0x00,0}, {12,0x01,0x07,0x00,0}, + {13,0x01,0x08,0x00,0}, {14,0x01,0x09,0x00,0}, {15,0x01,0x0A,0x00,0}, + {16,0x01,0x0B,0x00,0}, {17,0x01,0x0C,0x00,0}, {18,0x01,0x0D,0x00,0}, + {19,0x01,0x0E,0x00,0}, {20,0x02,0x09,0x20,1}, {21,0x02,0x0A,0x00,0}, + {22,0x02,0x0B,0x00,0}, {23,0x02,0x0C,0x00,0}, {24,0x02,0x0D,0x00,0}, + {25,0x02,0x0E,0x00,0}, {26,0x02,0x0F,0x00,0}, {27,0x02,0x10,0x00,0}, + {28,0x02,0x2B,0x20,1}, {29,0x02,0x2C,0x00,0}, {30,0x04,0x28,0x20,1}, + {31,0x04,0x29,0x00,0}, {32,0x04,0x2A,0x00,0}, {33,0x04,0x2B,0x00,0}, + {34,0x24,0x20,0x20,0}, {35,0x24,0x21,0x00,1}, {36,0x44,0x20,0x20,0}, + {37,0x44,0x21,0x00,1}, {38,0x44,0x22,0x00,0}, {39,0x44,0x23,0x00,0}, + {40,0x44,0x24,0x00,0}, {41,0x44,0x25,0x00,0}, {42,0x44,0x26,0x00,0}, + {43,0x44,0x27,0x00,0}, {44,0x44,0x28,0x00,0}, {45,0x44,0x29,0x00,0}, + {46,0x44,0x2A,0x00,0}, {47,0x44,0x2B,0x00,0}, {48,0x44,0x2C,0x00,0}, + {49,0x44,0x2D,0x00,0}, {50,0x44,0x2E,0x00,0}, {51,0x44,0x2F,0x00,0}, + {52,0x44,0x30,0x00,0}, {53,0x44,0x31,0x00,0}, {54,0x44,0x32,0x00,0}, + {55,0x64,0x2E,0x20,1}, {56,0x64,0x2F,0x00,0}, {57,0x64,0x30,0x00,0}, + {58,0x64,0x31,0x00,0}, {59,0x64,0x32,0x00,0}, {60,0x64,0x33,0x00,0}, + {61,0x64,0x34,0x00,0}, {62,0x64,0x35,0x00,0}, {63,0x64,0x36,0x00,0}, + {64,0x64,0x37,0x00,0}, {65,0x64,0x38,0x00,0}, {66,0x65,0x38,0x20,1}, + {67,0x66,0x38,0x20,1}, {68,0x67,0x38,0x20,1}, {69,0x68,0x38,0x20,1}, + {70,0x69,0x38,0x20,1}, {71,0x6A,0x38,0x20,1}, {72,0x6B,0x38,0x20,1}, + {73,0x6C,0x38,0x20,1}, {74,0x6D,0x38,0x20,1}, {75,0x6E,0x38,0x20,1}, + {76,0x6F,0x38,0x20,1}}; + + +uint8_t gain_table_4000mhz_to_6000mhz[77][5] = { {0,0x00,0x00,0x20,1}, + {1,0x00,0x00,0x00,0}, {2,0x00,0x00,0x00,0}, {3,0x00,0x00,0x00,0}, + {4,0x00,0x00,0x00,0}, {5,0x00,0x01,0x00,0}, {6,0x00,0x02,0x00,0}, + {7,0x00,0x03,0x00,0}, {8,0x01,0x01,0x20,1}, {9,0x01,0x02,0x00,0}, + {10,0x01,0x03,0x00,0}, {11,0x01,0x04,0x20,1}, {12,0x01,0x05,0x00,0}, + {13,0x01,0x06,0x00,0}, {14,0x01,0x07,0x00,0}, {15,0x01,0x08,0x00,0}, + {16,0x01,0x09,0x00,0}, {17,0x01,0x0A,0x00,0}, {18,0x01,0x0B,0x00,0}, + {19,0x01,0x0C,0x00,0}, {20,0x02,0x08,0x20,1}, {21,0x02,0x09,0x00,0}, + {22,0x02,0x0A,0x00,0}, {23,0x02,0x0B,0x20,1}, {24,0x02,0x0C,0x00,0}, + {25,0x02,0x0D,0x00,0}, {26,0x02,0x0E,0x00,0}, {27,0x02,0x0F,0x00,0}, + {28,0x02,0x2A,0x20,1}, {29,0x02,0x2B,0x00,0}, {30,0x04,0x27,0x20,1}, + {31,0x04,0x28,0x00,0}, {32,0x04,0x29,0x00,0}, {33,0x04,0x2A,0x00,0}, + {34,0x04,0x2B,0x00,0}, {35,0x04,0x2C,0x00,0}, {36,0x04,0x2D,0x00,0}, + {37,0x24,0x20,0x20,1}, {38,0x24,0x21,0x00,0}, {39,0x24,0x22,0x00,0}, + {40,0x44,0x20,0x20,1}, {41,0x44,0x21,0x00,0}, {42,0x44,0x22,0x00,0}, + {43,0x44,0x23,0x00,0}, {44,0x44,0x24,0x00,0}, {45,0x44,0x25,0x00,0}, + {46,0x44,0x26,0x00,0}, {47,0x44,0x27,0x00,0}, {48,0x44,0x28,0x00,0}, + {49,0x44,0x29,0x00,0}, {50,0x44,0x2A,0x00,0}, {51,0x44,0x2B,0x00,0}, + {52,0x44,0x2C,0x00,0}, {53,0x44,0x2D,0x00,0}, {54,0x44,0x2E,0x00,0}, + {55,0x64,0x2E,0x20,1}, {56,0x64,0x2F,0x00,0}, {57,0x64,0x30,0x00,0}, + {58,0x64,0x31,0x00,0}, {59,0x64,0x32,0x00,0}, {60,0x64,0x33,0x00,0}, + {61,0x64,0x34,0x00,0}, {62,0x64,0x35,0x00,0}, {63,0x64,0x36,0x00,0}, + {64,0x64,0x37,0x00,0}, {65,0x64,0x38,0x00,0}, {66,0x65,0x38,0x20,1}, + {67,0x66,0x38,0x20,1}, {68,0x67,0x38,0x20,1}, {69,0x68,0x38,0x20,1}, + {70,0x69,0x38,0x20,1}, {71,0x6A,0x38,0x20,1}, {72,0x6B,0x38,0x20,1}, + {73,0x6C,0x38,0x20,1}, {74,0x6D,0x38,0x20,1}, {75,0x6E,0x38,0x20,1}, + {76,0x6F,0x38,0x20,1}}; + + +#endif /* INCLUDED_AD9361_GAIN_TABLES_HPP */ diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_impl.c b/host/lib/usrp/common/ad9361_driver/ad9361_impl.c new file mode 100644 index 000000000..fab906e6f --- /dev/null +++ b/host/lib/usrp/common/ad9361_driver/ad9361_impl.c @@ -0,0 +1,1999 @@ +// +// Copyright 2014 Ettus Research LLC +// + +#include <stdarg.h> +#include <stdio.h> +#ifdef __cplusplus +#include <string.h> +static int lround(double dbl) { return static_cast<int>(dbl+0.5); } +using namespace std; +#else +#include <stdbool.h> +#include <math.h> +#endif +#include <iostream> +#include <ad9361_transaction.h> +#include "ad9361_filter_taps.h" +#include "ad9361_gain_tables.h" +#include "ad9361_synth_lut.h" +#include "ad9361_dispatch.h" +#include "ad9361_platform.h" //Platform specific operations +#include "ad9361_client.h" //Client (product) specific settings +#include "ad9361_device.h" + +#define AD9361_MIN(a, b) (((a) < (b)) ? (a) : (b)) +#define AD9361_MAX(a, b) (((a) > (b)) ? (a) : (b)) + +//////////////////////////////////////////////////////////// + +static void fake_msg(const char* str, ...) +{ + (void) str; +} + +static msgfn _msgfn = fake_msg; + +//extern void msg(const char* str, ...); External object must provide this symbol +#define msg (_msgfn) + +void ad9361_set_msgfn(msgfn pfn) +{ + _msgfn = pfn; +} + +//////////////////////////////////////////////////////////// +#define AD9361_MAX_GAIN 89.75 + +#define DOUBLE_PI 3.14159265359 +#define DOUBLE_LN_2 0.693147181 + +#define RX_TYPE 0 +#define TX_TYPE 1 + +//////////////////////////////////////////////////////////// +// the following macros evaluate to a compile time constant +// macros By Tom Torfs - donated to the public domain + +/* turn a numeric literal into a hex constant +(avoids problems with leading zeroes) +8-bit constants max value 0x11111111, always fits in unsigned long +*/ +#define HEX__(n) 0x##n##LU + +/* 8-bit conversion function */ +#define B8__(x) ((x&0x0000000FLU)?1:0) \ ++((x&0x000000F0LU)?2:0) \ ++((x&0x00000F00LU)?4:0) \ ++((x&0x0000F000LU)?8:0) \ ++((x&0x000F0000LU)?16:0) \ ++((x&0x00F00000LU)?32:0) \ ++((x&0x0F000000LU)?64:0) \ ++((x&0xF0000000LU)?128:0) + +/* *** user macros *** */ + +/* for upto 8-bit binary constants */ +#define B8(d) ((unsigned char)B8__(HEX__(d))) + +double set_gain(uint64_t handle, int which, int n, const double value); +void set_active_chains(uint64_t handle, bool tx1, bool tx2, bool rx1, bool rx2); +/*********************************************************************** + * Placeholders, unused, or test functions + **********************************************************************/ +static char *tmp_req_buffer; +void post_err_msg( const char* error) +{ + msg("[AD9361 error] %s", error); + if (!tmp_req_buffer) + return; + + ad9361_transaction_t *request = (ad9361_transaction_t *)tmp_req_buffer; + strncpy(request->error_msg, error, (AD9361_TRANSACTION_MAX_ERROR_MSG + 1)); // '+ 1' as length excludes terminating NUL + request->error_msg[AD9361_TRANSACTION_MAX_ERROR_MSG] = '\0'; // If string was too long, NUL will not be copied, so force one just in case +} + +/* Make AD9361 output its test tone. */ +void output_test_tone(ad9361_device_t* device) { + /* Output a 480 kHz tone at 800 MHz */ + write_ad9361_reg(device, 0x3F4, 0x0B); + write_ad9361_reg(device, 0x3FC, 0xFF); + write_ad9361_reg(device, 0x3FD, 0xFF); + write_ad9361_reg(device, 0x3FE, 0x3F); +} + +/* Turn on/off AD9361's TX port --> RX port loopback. */ +void data_port_loopback(uint64_t handle, const int on) { + ad9361_device_t* device = get_ad9361_device(handle); + msg("[data_port_loopback] Enabled: %d", on); + write_ad9361_reg(device, 0x3F5, (on ? 0x01 : 0x00)); +} + +/* This is a simple comparison for very large double-precision floating + * point numbers. It is used to prevent re-tunes for frequencies that are + * the same but not 'exactly' because of data precision issues. */ +// TODO: see if we can avoid the need for this function +int freq_is_nearly_equal(double a, double b) { + return AD9361_MAX(a,b) - AD9361_MIN(a,b) < 1; +} + +/*********************************************************************** + * Filter functions + **********************************************************************/ + +/* This function takes in the calculated maximum number of FIR taps, and + * returns a number of taps that makes AD9361 happy. */ +int get_num_taps(int max_num_taps) { + + int num_taps = 0; + int num_taps_list[] = {16, 32, 48, 64, 80, 96, 112, 128}; + int i; + for(i = 1; i < 8; i++) { + if(max_num_taps >= num_taps_list[i]) { + continue; + } else { + num_taps = num_taps_list[i - 1]; + break; + } + } if(num_taps == 0) { num_taps = 128; } + + return num_taps; +} + +/* Program either the RX or TX FIR filter. + * + * The process is the same for both filters, but the function must be told + * how many taps are in the filter, and given a vector of the taps + * themselves. */ + +void program_fir_filter(ad9361_device_t* device, int which, int num_taps, uint16_t *coeffs) { + uint16_t base; + + /* RX and TX filters use largely identical sets of programming registers. + Select the appropriate bank of registers here. */ + if(which == RX_TYPE) { + base = 0x0f0; + } else { + base = 0x060; + } + + /* Encode number of filter taps for programming register */ + uint8_t reg_numtaps = (((num_taps / 16) - 1) & 0x07) << 5; + + /* Turn on the filter clock. */ + write_ad9361_reg(device, base+5, reg_numtaps | 0x1a); + ad9361_msleep(1); + + /* Zero the unused taps just in case they have stale data */ + int addr; + for(addr=num_taps; addr < 128; addr++) { + write_ad9361_reg(device, base+0, addr); + write_ad9361_reg(device, base+1, 0x0); + write_ad9361_reg(device, base+2, 0x0); + write_ad9361_reg(device, base+5, reg_numtaps | 0x1e); + write_ad9361_reg(device, base+4, 0x00); + write_ad9361_reg(device, base+4, 0x00); + } + + /* Iterate through indirect programming of filter coeffs using ADI recomended procedure */ + for(addr=0; addr < num_taps; addr++) { + write_ad9361_reg(device, base+0, addr); + write_ad9361_reg(device, base+1, (coeffs[addr]) & 0xff); + write_ad9361_reg(device, base+2, (coeffs[addr] >> 8) & 0xff); + write_ad9361_reg(device, base+5, reg_numtaps | 0x1e); + write_ad9361_reg(device, base+4, 0x00); + write_ad9361_reg(device, base+4, 0x00); + } + + /* UG-671 states (page 25) (paraphrased and clarified): + " After the table has been programmed, write to register BASE+5 with the write bit D2 cleared and D1 high. + Then, write to register BASE+5 again with D1 clear, thus ensuring that the write bit resets internally + before the clock stops. Wait 4 sample clock periods after setting D2 high while that data writes into the table" + */ + + write_ad9361_reg(device, base+5, reg_numtaps | 0x1A); + if(which == RX_TYPE) { + write_ad9361_reg(device, base+5, reg_numtaps | 0x18); + write_ad9361_reg(device, base+6, 0x02); /* Also turn on -6dB Rx gain here, to stop filter overfow.*/ + } else { + write_ad9361_reg(device, base+5, reg_numtaps | 0x19); /* Also turn on -6dB Tx gain here, to stop filter overfow.*/ + } +} + + + +/* Program the RX FIR Filter. */ +void setup_rx_fir(ad9361_device_t* device, int total_num_taps) { + int num_taps = total_num_taps; +#ifdef __cplusplus + uint16_t* coeffs = new uint16_t[num_taps]; +#else + uint16_t coeffs[num_taps]; +#endif + int i; + for(i = 0; i < num_taps; i++) { + switch(num_taps) { + case 128: coeffs[i] = (uint16_t)hb127_coeffs[i]; break; + case 96: coeffs[i] = (uint16_t)hb95_coeffs[i]; break; + case 64: coeffs[i] = (uint16_t)hb63_coeffs[i]; break; + case 48: coeffs[i] = (uint16_t)hb47_coeffs[i]; break; + default: post_err_msg("Unsupported number of Rx FIR taps."); + } + } + + program_fir_filter(device, RX_TYPE, total_num_taps, coeffs); +#ifdef __cplusplus + delete[] coeffs; +#endif +} + +/* Program the TX FIR Filter. */ +void setup_tx_fir(ad9361_device_t* device, int total_num_taps) { + int num_taps = total_num_taps; +#ifdef __cplusplus + uint16_t* coeffs = new uint16_t[num_taps]; +#else + uint16_t coeffs[num_taps]; +#endif + int i; + for(i = 0; i < num_taps; i++) { + switch(num_taps) { + case 128: coeffs[i] = (uint16_t)hb127_coeffs[i]; break; + case 96: coeffs[i] = (uint16_t)hb95_coeffs[i]; break; + case 64: coeffs[i] = (uint16_t)hb63_coeffs[i]; break; + case 48: coeffs[i] = (uint16_t)hb47_coeffs[i]; break; + default: post_err_msg("Unsupported number of Tx FIR taps."); + } + } + + program_fir_filter(device, TX_TYPE, total_num_taps, coeffs); +#ifdef __cplusplus + delete[] coeffs; +#endif +} + +/*********************************************************************** + * Calibration functions + ***********************************************************************/ + +/* Calibrate and lock the BBPLL. + * + * This function should be called anytime the BBPLL is tuned. */ +void calibrate_lock_bbpll(ad9361_device_t* device) { + write_ad9361_reg(device, 0x03F, 0x05); // Start the BBPLL calibration + write_ad9361_reg(device, 0x03F, 0x01); // Clear the 'start' bit + + /* Increase BBPLL KV and phase margin. */ + write_ad9361_reg(device, 0x04c, 0x86); + write_ad9361_reg(device, 0x04d, 0x01); + write_ad9361_reg(device, 0x04d, 0x05); + + /* Wait for BBPLL lock. */ + int count = 0; + while(!(read_ad9361_reg(device, 0x05e) & 0x80)) { + if(count > 1000) { + post_err_msg("BBPLL not locked"); + break; + } + + count++; + ad9361_msleep(2); + } +} + +/* Calibrate the synthesizer charge pumps. + * + * Technically, this calibration only needs to be done once, at device + * initialization. */ +void calibrate_synth_charge_pumps(ad9361_device_t* device) { + /* If this function ever gets called, and the ENSM isn't already in the + * ALERT state, then something has gone horribly wrong. */ + if((read_ad9361_reg(device, 0x017) & 0x0F) != 5) { + post_err_msg("AD9361 not in ALERT during cal"); + } + + /* Calibrate the RX synthesizer charge pump. */ + int count = 0; + write_ad9361_reg(device, 0x23d, 0x04); + while(!(read_ad9361_reg(device, 0x244) & 0x80)) { + if(count > 5) { + post_err_msg("RX charge pump cal failure"); + break; + } + + count++; + ad9361_msleep(1); + } + write_ad9361_reg(device, 0x23d, 0x00); + + /* Calibrate the TX synthesizer charge pump. */ + count = 0; + write_ad9361_reg(device, 0x27d, 0x04); + while(!(read_ad9361_reg(device, 0x284) & 0x80)) { + if(count > 5) { + post_err_msg("TX charge pump cal failure"); + break; + } + + count++; + ad9361_msleep(1); + } + write_ad9361_reg(device, 0x27d, 0x00); +} + +/* Calibrate the analog BB RX filter. + * + * Note that the filter calibration depends heavily on the baseband + * bandwidth, so this must be re-done after any change to the RX sample + * rate. */ +double calibrate_baseband_rx_analog_filter(ad9361_device_t* device) { + /* For filter tuning, baseband BW is half the complex BW, and must be + * between 28e6 and 0.2e6. */ + double bbbw = device->baseband_bw / 2.0; + if(bbbw > 28e6) { + bbbw = 28e6; + } else if (bbbw < 0.20e6) { + bbbw = 0.20e6; + } + + double rxtune_clk = ((1.4 * bbbw * 2 * + DOUBLE_PI) / DOUBLE_LN_2); + + device->rx_bbf_tunediv = AD9361_MIN(511, ad9361_ceil_to_int(device->bbpll_freq / rxtune_clk)); + + device->regs.bbftune_config = (device->regs.bbftune_config & 0xFE) \ + | ((device->rx_bbf_tunediv >> 8) & 0x0001); + + double bbbw_mhz = bbbw / 1e6; + + double temp = ((bbbw_mhz - ad9361_floor_to_int(bbbw_mhz)) * 1000) / 7.8125; + uint8_t bbbw_khz = (uint8_t) AD9361_MIN(127, (ad9361_floor_to_int(temp + 0.5))); + + /* Set corner frequencies and dividers. */ + write_ad9361_reg(device, 0x1fb, (uint8_t)(bbbw_mhz)); + write_ad9361_reg(device, 0x1fc, bbbw_khz); + write_ad9361_reg(device, 0x1f8, (device->rx_bbf_tunediv & 0x00FF)); + write_ad9361_reg(device, 0x1f9, device->regs.bbftune_config); + + /* RX Mix Voltage settings - only change with apps engineer help. */ + write_ad9361_reg(device, 0x1d5, 0x3f); + write_ad9361_reg(device, 0x1c0, 0x03); + + /* Enable RX1 & RX2 filter tuners. */ + write_ad9361_reg(device, 0x1e2, 0x02); + write_ad9361_reg(device, 0x1e3, 0x02); + + /* Run the calibration! */ + int count = 0; + write_ad9361_reg(device, 0x016, 0x80); + while(read_ad9361_reg(device, 0x016) & 0x80) { + if(count > 100) { + post_err_msg("RX baseband filter cal FAILURE"); + break; + } + + count++; + ad9361_msleep(1); + } + + /* Disable RX1 & RX2 filter tuners. */ + write_ad9361_reg(device, 0x1e2, 0x03); + write_ad9361_reg(device, 0x1e3, 0x03); + + return bbbw; +} + +/* Calibrate the analog BB TX filter. + * + * Note that the filter calibration depends heavily on the baseband + * bandwidth, so this must be re-done after any change to the TX sample + * rate. */ +double calibrate_baseband_tx_analog_filter(ad9361_device_t* device) { + /* For filter tuning, baseband BW is half the complex BW, and must be + * between 28e6 and 0.2e6. */ + double bbbw = device->baseband_bw / 2.0; + if(bbbw > 20e6) { + bbbw = 20e6; + } else if (bbbw < 0.625e6) { + bbbw = 0.625e6; + } + + double txtune_clk = ((1.6 * bbbw * 2 * + DOUBLE_PI) / DOUBLE_LN_2); + + uint16_t txbbfdiv = AD9361_MIN(511, (ad9361_ceil_to_int(device->bbpll_freq / txtune_clk))); + + device->regs.bbftune_mode = (device->regs.bbftune_mode & 0xFE) \ + | ((txbbfdiv >> 8) & 0x0001); + + /* Program the divider values. */ + write_ad9361_reg(device, 0x0d6, (txbbfdiv & 0x00FF)); + write_ad9361_reg(device, 0x0d7, device->regs.bbftune_mode); + + /* Enable the filter tuner. */ + write_ad9361_reg(device, 0x0ca, 0x22); + + /* Calibrate! */ + int count = 0; + write_ad9361_reg(device, 0x016, 0x40); + while(read_ad9361_reg(device, 0x016) & 0x40) { + if(count > 100) { + post_err_msg("TX baseband filter cal FAILURE"); + break; + } + + count++; + ad9361_msleep(1); + } + + /* Disable the filter tuner. */ + write_ad9361_reg(device, 0x0ca, 0x26); + + return bbbw; +} + +/* Calibrate the secondary TX filter. + * + * This filter also depends on the TX sample rate, so if a rate change is + * made, the previous calibration will no longer be valid. */ +void calibrate_secondary_tx_filter(ad9361_device_t* device) { + /* For filter tuning, baseband BW is half the complex BW, and must be + * between 20e6 and 0.53e6. */ + double bbbw = device->baseband_bw / 2.0; + if(bbbw > 20e6) { + bbbw = 20e6; + } else if (bbbw < 0.53e6) { + bbbw = 0.53e6; + } + + double bbbw_mhz = bbbw / 1e6; + + /* Start with a resistor value of 100 Ohms. */ + int res = 100; + + /* Calculate target corner frequency. */ + double corner_freq = 5 * bbbw_mhz * 2 * DOUBLE_PI; + + /* Iterate through RC values to determine correct combination. */ + int cap = 0; + int i; + for(i = 0; i <= 3; i++) { + cap = (ad9361_floor_to_int(0.5 + (( 1 / ((corner_freq * res) * 1e6)) * 1e12))) - 12; + + if(cap <= 63) { + break; + } + + res = res * 2; + } + if(cap > 63) { + cap = 63; + } + + uint8_t reg0d0, reg0d1, reg0d2; + + /* Translate baseband bandwidths to register settings. */ + if((bbbw_mhz * 2) <= 9) { + reg0d0 = 0x59; + } else if(((bbbw_mhz * 2) > 9) && ((bbbw_mhz * 2) <= 24)) { + reg0d0 = 0x56; + } else if((bbbw_mhz * 2) > 24) { + reg0d0 = 0x57; + } else { + post_err_msg("Cal2ndTxFil: INVALID_CODE_PATH bad bbbw_mhz"); + reg0d0 = 0x00; + } + + /* Translate resistor values to register settings. */ + if(res == 100) { + reg0d1 = 0x0c; + } else if(res == 200) { + reg0d1 = 0x04; + } else if(res == 400) { + reg0d1 = 0x03; + } else if(res == 800) { + reg0d1 = 0x01; + } else { + reg0d1 = 0x0c; + } + + reg0d2 = cap; + + /* Program the above-calculated values. Sweet. */ + write_ad9361_reg(device, 0x0d2, reg0d2); + write_ad9361_reg(device, 0x0d1, reg0d1); + write_ad9361_reg(device, 0x0d0, reg0d0); +} + +/* Calibrate the RX TIAs. + * + * Note that the values in the TIA register, after calibration, vary with + * the RX gain settings. */ +void calibrate_rx_TIAs(ad9361_device_t* device) { + + uint8_t reg1eb = read_ad9361_reg(device, 0x1eb) & 0x3F; + uint8_t reg1ec = read_ad9361_reg(device, 0x1ec) & 0x7F; + uint8_t reg1e6 = read_ad9361_reg(device, 0x1e6) & 0x07; + uint8_t reg1db = 0x00; + uint8_t reg1dc = 0x00; + uint8_t reg1dd = 0x00; + uint8_t reg1de = 0x00; + uint8_t reg1df = 0x00; + + /* For calibration, baseband BW is half the complex BW, and must be + * between 28e6 and 0.2e6. */ + double bbbw = device->baseband_bw / 2.0; + if(bbbw > 20e6) { + bbbw = 20e6; + } else if (bbbw < 0.20e6) { + bbbw = 0.20e6; + } + double ceil_bbbw_mhz = ad9361_ceil_to_int(bbbw / 1e6); + + /* Do some crazy resistor and capacitor math. */ + int Cbbf = (reg1eb * 160) + (reg1ec * 10) + 140; + int R2346 = 18300 * (reg1e6 & 0x07); + double CTIA_fF = (Cbbf * R2346 * 0.56) / 3500; + + /* Translate baseband BW to register settings. */ + if(ceil_bbbw_mhz <= 3) { + reg1db = 0xe0; + } else if((ceil_bbbw_mhz > 3) && (ceil_bbbw_mhz <= 10)) { + reg1db = 0x60; + } else if(ceil_bbbw_mhz > 10) { + reg1db = 0x20; + } else { + post_err_msg("CalRxTias: INVALID_CODE_PATH bad bbbw_mhz"); + } + + if(CTIA_fF > 2920) { + reg1dc = 0x40; + reg1de = 0x40; + + uint8_t temp = (uint8_t) AD9361_MIN(127, (ad9361_floor_to_int(0.5 + ((CTIA_fF - 400.0) / 320.0)))); + reg1dd = temp; + reg1df = temp; + } else { + uint8_t temp = (uint8_t) ad9361_floor_to_int(0.5 + ((CTIA_fF - 400.0) / 40.0)) + 0x40; + reg1dc = temp; + reg1de = temp; + reg1dd = 0; + reg1df = 0; + } + + /* w00t. Settings calculated. Program them and roll out. */ + write_ad9361_reg(device, 0x1db, reg1db); + write_ad9361_reg(device, 0x1dd, reg1dd); + write_ad9361_reg(device, 0x1df, reg1df); + write_ad9361_reg(device, 0x1dc, reg1dc); + write_ad9361_reg(device, 0x1de, reg1de); +} + +/* Setup the AD9361 ADC. + * + * There are 40 registers that control the ADC's operation, most of the + * values of which must be derived mathematically, dependent on the current + * setting of the BBPLL. Note that the order of calculation is critical, as + * some of the 40 registers depend on the values in others. */ +void setup_adc(ad9361_device_t* device) { + double bbbw_mhz = (((device->bbpll_freq / 1e6) / device->rx_bbf_tunediv) * DOUBLE_LN_2) \ + / (1.4 * 2 * DOUBLE_PI); + + /* For calibration, baseband BW is half the complex BW, and must be + * between 28e6 and 0.2e6. */ + if(bbbw_mhz > 28) { + bbbw_mhz = 28; + } else if (bbbw_mhz < 0.20) { + bbbw_mhz = 0.20; + } + + uint8_t rxbbf_c3_msb = read_ad9361_reg(device, 0x1eb) & 0x3F; + uint8_t rxbbf_c3_lsb = read_ad9361_reg(device, 0x1ec) & 0x7F; + uint8_t rxbbf_r2346 = read_ad9361_reg(device, 0x1e6) & 0x07; + + double fsadc = device->adcclock_freq / 1e6; + + /* Sort out the RC time constant for our baseband bandwidth... */ + double rc_timeconst = 0.0; + if(bbbw_mhz < 18) { + rc_timeconst = (1 / ((1.4 * 2 * DOUBLE_PI) \ + * (18300 * rxbbf_r2346) + * ((160e-15 * rxbbf_c3_msb) + + (10e-15 * rxbbf_c3_lsb) + 140e-15) + * (bbbw_mhz * 1e6))); + } else { + rc_timeconst = (1 / ((1.4 * 2 * DOUBLE_PI) \ + * (18300 * rxbbf_r2346) + * ((160e-15 * rxbbf_c3_msb) + + (10e-15 * rxbbf_c3_lsb) + 140e-15) + * (bbbw_mhz * 1e6) * (1 + (0.01 * (bbbw_mhz - 18))))); + } + + double scale_res = ad9361_sqrt(1 / rc_timeconst); + double scale_cap = ad9361_sqrt(1 / rc_timeconst); + + double scale_snr = (device->adcclock_freq < 80e6) ? 1.0 : 1.584893192; + double maxsnr = 640 / 160; + + /* Calculate the values for all 40 settings registers. + * + * DO NOT TOUCH THIS UNLESS YOU KNOW EXACTLY WHAT YOU ARE DOING. kthx.*/ + uint8_t data[40]; + data[0] = 0; data[1] = 0; data[2] = 0; data[3] = 0x24; + data[4] = 0x24; data[5] = 0; data[6] = 0; + data[7] = (uint8_t) AD9361_MIN(124, (ad9361_floor_to_int(-0.5 + + (80.0 * scale_snr * scale_res + * AD9361_MIN(1.0, ad9361_sqrt(maxsnr * fsadc / 640.0)))))); + double data007 = data[7]; + data[8] = (uint8_t) AD9361_MIN(255, (ad9361_floor_to_int(0.5 + + ((20.0 * (640.0 / fsadc) * ((data007 / 80.0)) + / (scale_res * scale_cap)))))); + data[10] = (uint8_t) AD9361_MIN(127, (ad9361_floor_to_int(-0.5 + (77.0 * scale_res + * AD9361_MIN(1.0, ad9361_sqrt(maxsnr * fsadc / 640.0)))))); + double data010 = data[10]; + data[9] = (uint8_t) AD9361_MIN(127, (ad9361_floor_to_int(0.8 * data010))); + data[11] = (uint8_t) AD9361_MIN(255, (ad9361_floor_to_int(0.5 + + (20.0 * (640.0 / fsadc) * ((data010 / 77.0) + / (scale_res * scale_cap)))))); + data[12] = (uint8_t) AD9361_MIN(127, (ad9361_floor_to_int(-0.5 + + (80.0 * scale_res * AD9361_MIN(1.0, + ad9361_sqrt(maxsnr * fsadc / 640.0)))))); + double data012 = data[12]; + data[13] = (uint8_t) AD9361_MIN(255, (ad9361_floor_to_int(-1.5 + + (20.0 * (640.0 / fsadc) * ((data012 / 80.0) + / (scale_res * scale_cap)))))); + data[14] = 21 * (uint8_t)(ad9361_floor_to_int(0.1 * 640.0 / fsadc)); + data[15] = (uint8_t) AD9361_MIN(127, (1.025 * data007)); + double data015 = data[15]; + data[16] = (uint8_t) AD9361_MIN(127, (ad9361_floor_to_int((data015 + * (0.98 + (0.02 * AD9361_MAX(1.0, + (640.0 / fsadc) / maxsnr))))))); + data[17] = data[15]; + data[18] = (uint8_t) AD9361_MIN(127, (0.975 * (data010))); + double data018 = data[18]; + data[19] = (uint8_t) AD9361_MIN(127, (ad9361_floor_to_int((data018 + * (0.98 + (0.02 * AD9361_MAX(1.0, + (640.0 / fsadc) / maxsnr))))))); + data[20] = data[18]; + data[21] = (uint8_t) AD9361_MIN(127, (0.975 * data012)); + double data021 = data[21]; + data[22] = (uint8_t) AD9361_MIN(127, (ad9361_floor_to_int((data021 + * (0.98 + (0.02 * AD9361_MAX(1.0, + (640.0 / fsadc) / maxsnr))))))); + data[23] = data[21]; + data[24] = 0x2e; + data[25] = (uint8_t)(ad9361_floor_to_int(128.0 + AD9361_MIN(63.0, + 63.0 * (fsadc / 640.0)))); + data[26] = (uint8_t)(ad9361_floor_to_int(AD9361_MIN(63.0, 63.0 * (fsadc / 640.0) + * (0.92 + (0.08 * (640.0 / fsadc)))))); + data[27] = (uint8_t)(ad9361_floor_to_int(AD9361_MIN(63.0, + 32.0 * ad9361_sqrt(fsadc / 640.0)))); + data[28] = (uint8_t)(ad9361_floor_to_int(128.0 + AD9361_MIN(63.0, + 63.0 * (fsadc / 640.0)))); + data[29] = (uint8_t)(ad9361_floor_to_int(AD9361_MIN(63.0, + 63.0 * (fsadc / 640.0) + * (0.92 + (0.08 * (640.0 / fsadc)))))); + data[30] = (uint8_t)(ad9361_floor_to_int(AD9361_MIN(63.0, + 32.0 * ad9361_sqrt(fsadc / 640.0)))); + data[31] = (uint8_t)(ad9361_floor_to_int(128.0 + AD9361_MIN(63.0, + 63.0 * (fsadc / 640.0)))); + data[32] = (uint8_t)(ad9361_floor_to_int(AD9361_MIN(63.0, + 63.0 * (fsadc / 640.0) * (0.92 + + (0.08 * (640.0 / fsadc)))))); + data[33] = (uint8_t)(ad9361_floor_to_int(AD9361_MIN(63.0, + 63.0 * ad9361_sqrt(fsadc / 640.0)))); + data[34] = (uint8_t) AD9361_MIN(127, (ad9361_floor_to_int(64.0 + * ad9361_sqrt(fsadc / 640.0)))); + data[35] = 0x40; + data[36] = 0x40; + data[37] = 0x2c; + data[38] = 0x00; + data[39] = 0x00; + + /* Program the registers! */ + int i; + for(i=0; i<40; i++) { + write_ad9361_reg(device, 0x200+i, data[i]); + } + +} + +/* Calibrate the baseband DC offset. + * + * Note that this function is called from within the TX quadrature + * calibration function! */ +void calibrate_baseband_dc_offset(ad9361_device_t* device) { + write_ad9361_reg(device, 0x193, 0x3f); // Calibration settings + write_ad9361_reg(device, 0x190, 0x0f); // Set tracking coefficient + //write_ad9361_reg(device, 0x190, /*0x0f*//*0xDF*/0x80*1 | 0x40*1 | (16+8/*+4*/)); // Set tracking coefficient: don't *4 counter, do decim /4, increased gain shift + write_ad9361_reg(device, 0x194, 0x01); // More calibration settings + + /* Start that calibration, baby. */ + int count = 0; + write_ad9361_reg(device, 0x016, 0x01); + while(read_ad9361_reg(device, 0x016) & 0x01) { + if(count > 100) { + post_err_msg("Baseband DC Offset Calibration Failure"); + break; + } + + count++; + ad9361_msleep(5); + } +} + +/* Calibrate the RF DC offset. + * + * Note that this function is called from within the TX quadrature + * calibration function. */ +void calibrate_rf_dc_offset(ad9361_device_t* device) { + /* Some settings are frequency-dependent. */ + if(device->rx_freq < 4e9) { + write_ad9361_reg(device, 0x186, 0x32); // RF DC Offset count + write_ad9361_reg(device, 0x187, 0x24); + write_ad9361_reg(device, 0x188, 0x05); + } else { + write_ad9361_reg(device, 0x186, 0x28); // RF DC Offset count + write_ad9361_reg(device, 0x187, 0x34); + write_ad9361_reg(device, 0x188, 0x06); + } + + write_ad9361_reg(device, 0x185, 0x20); // RF DC Offset wait count + write_ad9361_reg(device, 0x18b, 0x83); + write_ad9361_reg(device, 0x189, 0x30); + + /* Run the calibration! */ + int count = 0; + write_ad9361_reg(device, 0x016, 0x02); + while(read_ad9361_reg(device, 0x016) & 0x02) { + if(count > 100) { + post_err_msg("RF DC Offset Calibration Failure"); + break; + } + + count++; + ad9361_msleep(50); + } +} + +/* Start the RX quadrature calibration. + * + * Note that we are using AD9361's 'tracking' feature for RX quadrature + * calibration, so once it starts it continues to free-run during operation. + * It should be re-run for large frequency changes. */ +void calibrate_rx_quadrature(ad9361_device_t* device) { + /* Configure RX Quadrature calibration settings. */ + write_ad9361_reg(device, 0x168, 0x03); // Set tone level for cal + write_ad9361_reg(device, 0x16e, 0x25); // RX Gain index to use for cal + write_ad9361_reg(device, 0x16a, 0x75); // Set Kexp phase + write_ad9361_reg(device, 0x16b, 0x15); // Set Kexp amplitude + write_ad9361_reg(device, 0x169, 0xcf); // Continuous tracking mode + write_ad9361_reg(device, 0x18b, 0xad); +} + +/* TX quadtrature calibration routine. + * + * The TX quadrature needs to be done twice, once for each TX chain, with + * only one register change in between. Thus, this function enacts the + * calibrations, and it is called from calibrate_tx_quadrature. */ +void tx_quadrature_cal_routine(ad9361_device_t* device) { + + /* This is a weird process, but here is how it works: + * 1) Read the calibrated NCO frequency bits out of 0A3. + * 2) Write the two bits to the RX NCO freq part of 0A0. + * 3) Re-read 0A3 to get bits [5:0] because maybe they changed? + * 4) Update only the TX NCO freq bits in 0A3. + * 5) Profit (I hope). */ + uint8_t reg0a3 = read_ad9361_reg(device, 0x0a3); + uint8_t nco_freq = (reg0a3 & 0xC0); + write_ad9361_reg(device, 0x0a0, 0x15 | (nco_freq >> 1)); + reg0a3 = read_ad9361_reg(device, 0x0a3); + write_ad9361_reg(device, 0x0a3, (reg0a3 & 0x3F) | nco_freq); + + /* It is possible to reach a configuration that won't operate correctly, + * where the two test tones used for quadrature calibration are outside + * of the RX BBF, and therefore don't make it to the ADC. We will check + * for that scenario here. */ + double max_cal_freq = (((device->baseband_bw * device->tfir_factor) * ((nco_freq >> 6) + 1)) / 32) * 2; + double bbbw = device->baseband_bw / 2.0; // bbbw represents the one-sided BW + if(bbbw > 28e6) { + bbbw = 28e6; + } else if (bbbw < 0.20e6) { + bbbw = 0.20e6; + } + if (max_cal_freq > bbbw ) + post_err_msg("max_cal_freq > bbbw"); + + write_ad9361_reg(device, 0x0a1, 0x7B); // Set tracking coefficient + write_ad9361_reg(device, 0x0a9, 0xff); // Cal count + write_ad9361_reg(device, 0x0a2, 0x7f); // Cal Kexp + write_ad9361_reg(device, 0x0a5, 0x01); // Cal magnitude threshold VVVV + write_ad9361_reg(device, 0x0a6, 0x01); + + /* The gain table index used for calibration must be adjusted for the + * mid-table to get a TIA index = 1 and LPF index = 0. */ + if((device->rx_freq >= 1300e6) && (device->rx_freq < 4000e6)) { + write_ad9361_reg(device, 0x0aa, 0x22); // Cal gain table index + } else { + write_ad9361_reg(device, 0x0aa, 0x25); // Cal gain table index + } + + write_ad9361_reg(device, 0x0a4, 0xf0); // Cal setting conut + write_ad9361_reg(device, 0x0ae, 0x00); // Cal LPF gain index (split mode) + + /* First, calibrate the baseband DC offset. */ + calibrate_baseband_dc_offset(device); + + /* Second, calibrate the RF DC offset. */ + calibrate_rf_dc_offset(device); + + /* Now, calibrate the TX quadrature! */ + int count = 0; + write_ad9361_reg(device, 0x016, 0x10); + while(read_ad9361_reg(device, 0x016) & 0x10) { + if(count > 100) { + post_err_msg("TX Quadrature Calibration Failure"); + break; + } + + count++; + ad9361_msleep(10); + } +} + +/* Run the TX quadrature calibration. + * + * Note that from within this function we are also triggering the baseband + * and RF DC calibrations. */ +void calibrate_tx_quadrature(ad9361_device_t* device) { + /* Make sure we are, in fact, in the ALERT state. If not, something is + * terribly wrong in the driver execution flow. */ + if((read_ad9361_reg(device, 0x017) & 0x0F) != 5) { + post_err_msg("TX Quad Cal started, but not in ALERT"); + } + + /* Turn off free-running and continuous calibrations. Note that this + * will get turned back on at the end of the RX calibration routine. */ + write_ad9361_reg(device, 0x169, 0xc0); + + /* This calibration must be done in a certain order, and for both TX_A + * and TX_B, separately. Store the original setting so that we can + * restore it later. */ + uint8_t orig_reg_inputsel = device->regs.inputsel; + + /*********************************************************************** + * TX1/2-A Calibration + **********************************************************************/ + device->regs.inputsel = device->regs.inputsel & 0xBF; + write_ad9361_reg(device, 0x004, device->regs.inputsel); + + tx_quadrature_cal_routine(device); + + /*********************************************************************** + * TX1/2-B Calibration + **********************************************************************/ + device->regs.inputsel = device->regs.inputsel | 0x40; + write_ad9361_reg(device, 0x004, device->regs.inputsel); + + tx_quadrature_cal_routine(device); + + /*********************************************************************** + * fin + **********************************************************************/ + device->regs.inputsel = orig_reg_inputsel; + write_ad9361_reg(device, 0x004, orig_reg_inputsel); +} + + +/*********************************************************************** + * Other Misc Setup Functions + ***********************************************************************/ + +/* Program the mixer gain table. + * + * Note that this table is fixed for all frequency settings. */ +void program_mixer_gm_subtable(ad9361_device_t* device) { + uint8_t gain[] = {0x78, 0x74, 0x70, 0x6C, 0x68, 0x64, 0x60, 0x5C, 0x58, + 0x54, 0x50, 0x4C, 0x48, 0x30, 0x18, 0x00}; + uint8_t gm[] = {0x00, 0x0D, 0x15, 0x1B, 0x21, 0x25, 0x29, 0x2C, 0x2F, + 0x31, 0x33, 0x34, 0x35, 0x3A, 0x3D, 0x3E}; + + /* Start the clock. */ + write_ad9361_reg(device, 0x13f, 0x02); + + /* Program the GM Sub-table. */ + int i; + for(i = 15; i >= 0; i--) { + write_ad9361_reg(device, 0x138, i); + write_ad9361_reg(device, 0x139, gain[(15 - i)]); + write_ad9361_reg(device, 0x13A, 0x00); + write_ad9361_reg(device, 0x13B, gm[(15 - i)]); + write_ad9361_reg(device, 0x13F, 0x06); + write_ad9361_reg(device, 0x13C, 0x00); + write_ad9361_reg(device, 0x13C, 0x00); + } + + /* Clear write bit and stop clock. */ + write_ad9361_reg(device, 0x13f, 0x02); + write_ad9361_reg(device, 0x13C, 0x00); + write_ad9361_reg(device, 0x13C, 0x00); + write_ad9361_reg(device, 0x13f, 0x00); +} + +/* Program the gain table. + * + * There are three different gain tables for different frequency ranges! */ +void program_gain_table(ad9361_device_t* device) { + + /* Figure out which gain table we should be using for our current + * frequency band. */ + uint8_t (*gain_table)[5] = NULL; + uint8_t new_gain_table; + if(device->rx_freq < 1300e6) { + gain_table = gain_table_sub_1300mhz; + new_gain_table = 1; + } else if(device->rx_freq < 4e9) { + gain_table = gain_table_1300mhz_to_4000mhz; + new_gain_table = 2; + } else if(device->rx_freq <= 6e9) { + gain_table = gain_table_4000mhz_to_6000mhz; + new_gain_table = 3; + } else { + post_err_msg("Wrong _rx_freq value"); + new_gain_table = 1; + } + + /* Only re-program the gain table if there has been a band change. */ + if(device->curr_gain_table == new_gain_table) { + return; + } else { + device->curr_gain_table = new_gain_table; + } + + /* Okay, we have to program a new gain table. Sucks, brah. Start the + * gain table clock. */ + write_ad9361_reg(device, 0x137, 0x1A); + + /* IT'S PROGRAMMING TIME. */ + uint8_t index = 0; + for(; index < 77; index++) { + write_ad9361_reg(device, 0x130, index); + write_ad9361_reg(device, 0x131, gain_table[index][1]); + write_ad9361_reg(device, 0x132, gain_table[index][2]); + write_ad9361_reg(device, 0x133, gain_table[index][3]); + write_ad9361_reg(device, 0x137, 0x1E); + write_ad9361_reg(device, 0x134, 0x00); + write_ad9361_reg(device, 0x134, 0x00); + } + + /* Everything above the 77th index is zero. */ + for(; index < 91; index++) { + write_ad9361_reg(device, 0x130, index); + write_ad9361_reg(device, 0x131, 0x00); + write_ad9361_reg(device, 0x132, 0x00); + write_ad9361_reg(device, 0x133, 0x00); + write_ad9361_reg(device, 0x137, 0x1E); + write_ad9361_reg(device, 0x134, 0x00); + write_ad9361_reg(device, 0x134, 0x00); + } + + /* Clear the write bit and stop the gain clock. */ + write_ad9361_reg(device, 0x137, 0x1A); + write_ad9361_reg(device, 0x134, 0x00); + write_ad9361_reg(device, 0x134, 0x00); + write_ad9361_reg(device, 0x137, 0x00); +} + +/* Setup gain control registers. + * + * This really only needs to be done once, at initialization. */ +void setup_gain_control(ad9361_device_t* device) +{ + write_ad9361_reg(device, 0x0FA, 0xE0); // Gain Control Mode Select + write_ad9361_reg(device, 0x0FB, 0x08); // Table, Digital Gain, Man Gain Ctrl + write_ad9361_reg(device, 0x0FC, 0x23); // Incr Step Size, ADC Overrange Size + write_ad9361_reg(device, 0x0FD, 0x4C); // Max Full/LMT Gain Table Index + write_ad9361_reg(device, 0x0FE, 0x44); // Decr Step Size, Peak Overload Time + write_ad9361_reg(device, 0x100, 0x6F); // Max Digital Gain + write_ad9361_reg(device, 0x104, 0x2F); // ADC Small Overload Threshold + write_ad9361_reg(device, 0x105, 0x3A); // ADC Large Overload Threshold + write_ad9361_reg(device, 0x107, 0x31); // Large LMT Overload Threshold + write_ad9361_reg(device, 0x108, 0x39); // Small LMT Overload Threshold + write_ad9361_reg(device, 0x109, 0x23); // Rx1 Full/LMT Gain Index + write_ad9361_reg(device, 0x10A, 0x58); // Rx1 LPF Gain Index + write_ad9361_reg(device, 0x10B, 0x00); // Rx1 Digital Gain Index + write_ad9361_reg(device, 0x10C, 0x23); // Rx2 Full/LMT Gain Index + write_ad9361_reg(device, 0x10D, 0x18); // Rx2 LPF Gain Index + write_ad9361_reg(device, 0x10E, 0x00); // Rx2 Digital Gain Index + write_ad9361_reg(device, 0x114, 0x30); // Low Power Threshold + write_ad9361_reg(device, 0x11A, 0x27); // Initial LMT Gain Limit + write_ad9361_reg(device, 0x081, 0x00); // Tx Symbol Gain Control +} + +/* Setup the RX or TX synthesizers. + * + * This setup depends on a fixed look-up table, which is stored in an + * included header file. The table is indexed based on the passed VCO rate. + */ +void setup_synth(ad9361_device_t* device, int which, double vcorate) { + /* The vcorates in the vco_index array represent lower boundaries for + * rates. Once we find a match, we use that index to look-up the rest of + * the register values in the LUT. */ + int vcoindex = 0; + int i; + for(i = 0; i < 53; i++) { + vcoindex = i; + if(vcorate > vco_index[i]) { + break; + } + } + + if (vcoindex > 53) + post_err_msg("vcoindex > 53"); + + /* Parse the values out of the LUT based on our calculated index... */ + uint8_t vco_output_level = synth_cal_lut[vcoindex][0]; + uint8_t vco_varactor = synth_cal_lut[vcoindex][1]; + uint8_t vco_bias_ref = synth_cal_lut[vcoindex][2]; + uint8_t vco_bias_tcf = synth_cal_lut[vcoindex][3]; + uint8_t vco_cal_offset = synth_cal_lut[vcoindex][4]; + uint8_t vco_varactor_ref = synth_cal_lut[vcoindex][5]; + uint8_t charge_pump_curr = synth_cal_lut[vcoindex][6]; + uint8_t loop_filter_c2 = synth_cal_lut[vcoindex][7]; + uint8_t loop_filter_c1 = synth_cal_lut[vcoindex][8]; + uint8_t loop_filter_r1 = synth_cal_lut[vcoindex][9]; + uint8_t loop_filter_c3 = synth_cal_lut[vcoindex][10]; + uint8_t loop_filter_r3 = synth_cal_lut[vcoindex][11]; + + /* ... annnd program! */ + if(which == RX_TYPE) { + write_ad9361_reg(device, 0x23a, 0x40 | vco_output_level); + write_ad9361_reg(device, 0x239, 0xC0 | vco_varactor); + write_ad9361_reg(device, 0x242, vco_bias_ref | (vco_bias_tcf << 3)); + write_ad9361_reg(device, 0x238, (vco_cal_offset << 3)); + write_ad9361_reg(device, 0x245, 0x00); + write_ad9361_reg(device, 0x251, vco_varactor_ref); + write_ad9361_reg(device, 0x250, 0x70); + write_ad9361_reg(device, 0x23b, 0x80 | charge_pump_curr); + write_ad9361_reg(device, 0x23e, loop_filter_c1 | (loop_filter_c2 << 4)); + write_ad9361_reg(device, 0x23f, loop_filter_c3 | (loop_filter_r1 << 4)); + write_ad9361_reg(device, 0x240, loop_filter_r3); + } else if(which == TX_TYPE) { + write_ad9361_reg(device, 0x27a, 0x40 | vco_output_level); + write_ad9361_reg(device, 0x279, 0xC0 | vco_varactor); + write_ad9361_reg(device, 0x282, vco_bias_ref | (vco_bias_tcf << 3)); + write_ad9361_reg(device, 0x278, (vco_cal_offset << 3)); + write_ad9361_reg(device, 0x285, 0x00); + write_ad9361_reg(device, 0x291, vco_varactor_ref); + write_ad9361_reg(device, 0x290, 0x70); + write_ad9361_reg(device, 0x27b, 0x80 | charge_pump_curr); + write_ad9361_reg(device, 0x27e, loop_filter_c1 | (loop_filter_c2 << 4)); + write_ad9361_reg(device, 0x27f, loop_filter_c3 | (loop_filter_r1 << 4)); + write_ad9361_reg(device, 0x280, loop_filter_r3); + } else { + post_err_msg("[setup_synth] INVALID_CODE_PATH"); + } +} + + +/* Tune the baseband VCO. + * + * This clock signal is what gets fed to the ADCs and DACs. This function is + * not exported outside of this file, and is invoked based on the rate + * fed to the public set_clock_rate function. */ +double tune_bbvco(ad9361_device_t* device, const double rate) { + msg("[tune_bbvco] rate=%.10f", rate); + + /* Let's not re-tune to the same frequency over and over... */ + if(freq_is_nearly_equal(rate, device->req_coreclk)) { + return device->adcclock_freq; + } + + device->req_coreclk = rate; + + const double fref = 40e6; + const int modulus = 2088960; + const double vcomax = 1430e6; + const double vcomin = 672e6; + double vcorate; + int vcodiv; + + /* Iterate over VCO dividers until appropriate divider is found. */ + int i = 1; + for(; i <= 6; i++) { + vcodiv = 1 << i; + vcorate = rate * vcodiv; + + if(vcorate >= vcomin && vcorate <= vcomax) break; + } + if(i == 7) + post_err_msg("tune_bbvco: wrong vcorate"); + + msg("[tune_bbvco] vcodiv=%d vcorate=%.10f", vcodiv, vcorate); + + /* Fo = Fref * (Nint + Nfrac / mod) */ + int nint = vcorate / fref; + msg("[tune_bbvco] (nint)=%.10f", (vcorate / fref)); + int nfrac = lround(((vcorate / fref) - (double)nint) * (double)modulus); + msg("[tune_bbvco] (nfrac)=%.10f", (((vcorate / fref) - (double)nint) * (double)modulus)); + msg("[tune_bbvco] nint=%d nfrac=%d", nint, nfrac); + double actual_vcorate = fref * ((double)nint + ((double)nfrac / (double)modulus)); + + /* Scale CP current according to VCO rate */ + const double icp_baseline = 150e-6; + const double freq_baseline = 1280e6; + double icp = icp_baseline * (actual_vcorate / freq_baseline); + int icp_reg = (icp / 25e-6) - 1; + + write_ad9361_reg(device, 0x045, 0x00); // REFCLK / 1 to BBPLL + write_ad9361_reg(device, 0x046, icp_reg & 0x3F); // CP current + write_ad9361_reg(device, 0x048, 0xe8); // BBPLL loop filters + write_ad9361_reg(device, 0x049, 0x5b); // BBPLL loop filters + write_ad9361_reg(device, 0x04a, 0x35); // BBPLL loop filters + + write_ad9361_reg(device, 0x04b, 0xe0); + write_ad9361_reg(device, 0x04e, 0x10); // Max accuracy + + write_ad9361_reg(device, 0x043, nfrac & 0xFF); // Nfrac[7:0] + write_ad9361_reg(device, 0x042, (nfrac >> 8) & 0xFF); // Nfrac[15:8] + write_ad9361_reg(device, 0x041, (nfrac >> 16) & 0xFF); // Nfrac[23:16] + write_ad9361_reg(device, 0x044, nint); // Nint + + calibrate_lock_bbpll(device); + + device->regs.bbpll = (device->regs.bbpll & 0xF8) | i; + + device->bbpll_freq = actual_vcorate; + device->adcclock_freq = (actual_vcorate / vcodiv); + + return device->adcclock_freq; +} + +/* This function re-programs all of the gains in the system. + * + * Because the gain values match to different gain indices based on the + * current operating band, this function can be called to update all gain + * settings to the appropriate index after a re-tune. */ +void program_gains(uint64_t handle) { + ad9361_device_t* device = get_ad9361_device(handle); + set_gain(handle, RX_TYPE,1, device->rx1_gain); + set_gain(handle, RX_TYPE,2, device->rx2_gain); + set_gain(handle, TX_TYPE,1, device->tx1_gain); + set_gain(handle, TX_TYPE,2, device->tx2_gain); +} + +/* This is the internal tune function, not available for a host call. + * + * Calculate the VCO settings for the requested frquency, and then either + * tune the RX or TX VCO. */ +double tune_helper(ad9361_device_t* device, int which, const double value) { + + /* The RFPLL runs from 6 GHz - 12 GHz */ + const double fref = 80e6; + const int modulus = 8388593; + const double vcomax = 12e9; + const double vcomin = 6e9; + double vcorate; + int vcodiv; + + /* Iterate over VCO dividers until appropriate divider is found. */ + int i; + for(i = 0; i <= 6; i++) { + vcodiv = 2 << i; + vcorate = value * vcodiv; + if(vcorate >= vcomin && vcorate <= vcomax) break; + } + if(i == 7) + post_err_msg("RFVCO can't find valid VCO rate!"); + + int nint = vcorate / fref; + int nfrac = ((vcorate / fref) - nint) * modulus; + + double actual_vcorate = fref * (nint + (double)(nfrac)/modulus); + double actual_lo = actual_vcorate / vcodiv; + + if(which == RX_TYPE) { + + device->req_rx_freq = value; + + /* Set band-specific settings. */ + if(value < ad9361_client_get_band_edge(device->product, AD9361_RX_BAND0)) { + device->regs.inputsel = (device->regs.inputsel & 0xC0) | 0x30; + } else if((value >= ad9361_client_get_band_edge(device->product, AD9361_RX_BAND0)) && + (value < ad9361_client_get_band_edge(device->product, AD9361_RX_BAND1))) { + device->regs.inputsel = (device->regs.inputsel & 0xC0) | 0x0C; + } else if((value >= ad9361_client_get_band_edge(device->product, AD9361_RX_BAND1)) && + (value <= 6e9)) { + device->regs.inputsel = (device->regs.inputsel & 0xC0) | 0x03; + } else { + post_err_msg("[tune_helper] INVALID_CODE_PATH"); + } + + write_ad9361_reg(device, 0x004, device->regs.inputsel); + + /* Store vcodiv setting. */ + device->regs.vcodivs = (device->regs.vcodivs & 0xF0) | (i & 0x0F); + + /* Setup the synthesizer. */ + setup_synth(device, RX_TYPE, actual_vcorate); + + /* Tune!!!! */ + write_ad9361_reg(device, 0x233, nfrac & 0xFF); + write_ad9361_reg(device, 0x234, (nfrac >> 8) & 0xFF); + write_ad9361_reg(device, 0x235, (nfrac >> 16) & 0xFF); + write_ad9361_reg(device, 0x232, (nint >> 8) & 0xFF); + write_ad9361_reg(device, 0x231, nint & 0xFF); + write_ad9361_reg(device, 0x005, device->regs.vcodivs); + + /* Lock the PLL! */ + ad9361_msleep(2); + if((read_ad9361_reg(device, 0x247) & 0x02) == 0) { + post_err_msg("RX PLL NOT LOCKED"); + } + + device->rx_freq = actual_lo; + + return actual_lo; + + } else { + + device->req_tx_freq = value; + + /* Set band-specific settings. */ + if(value < ad9361_client_get_band_edge(device->product, AD9361_TX_BAND0)) { + device->regs.inputsel = device->regs.inputsel | 0x40; + } else if((value >= ad9361_client_get_band_edge(device->product, AD9361_TX_BAND0)) && + (value <= 6e9)) { + device->regs.inputsel = device->regs.inputsel & 0xBF; + } else { + post_err_msg("[tune_helper] INVALID_CODE_PATH"); + } + + write_ad9361_reg(device, 0x004, device->regs.inputsel); + + /* Store vcodiv setting. */ + device->regs.vcodivs = (device->regs.vcodivs & 0x0F) | ((i & 0x0F) << 4); + + /* Setup the synthesizer. */ + setup_synth(device, TX_TYPE, actual_vcorate); + + /* Tune it, homey. */ + write_ad9361_reg(device, 0x273, nfrac & 0xFF); + write_ad9361_reg(device, 0x274, (nfrac >> 8) & 0xFF); + write_ad9361_reg(device, 0x275, (nfrac >> 16) & 0xFF); + write_ad9361_reg(device, 0x272, (nint >> 8) & 0xFF); + write_ad9361_reg(device, 0x271, nint & 0xFF); + write_ad9361_reg(device, 0x005, device->regs.vcodivs); + + /* Lock the PLL! */ + ad9361_msleep(2); + if((read_ad9361_reg(device, 0x287) & 0x02) == 0) { + post_err_msg("TX PLL NOT LOCKED"); + } + + device->tx_freq = actual_lo; + + return actual_lo; + } +} + +/* Configure the various clock / sample rates in the RX and TX chains. + * + * Functionally, this function configures AD9361's RX and TX rates. For + * a requested TX & RX rate, it sets the interpolation & decimation filters, + * and tunes the VCO that feeds the ADCs and DACs. + */ +double setup_rates(ad9361_device_t* device, const double rate) { + + /* If we make it into this function, then we are tuning to a new rate. + * Store the new rate. */ + device->req_clock_rate = rate; + + /* Set the decimation and interpolation values in the RX and TX chains. + * This also switches filters in / out. Note that all transmitters and + * receivers have to be turned on for the calibration portion of + * bring-up, and then they will be switched out to reflect the actual + * user-requested antenna selections. */ + int divfactor = 0; + device->tfir_factor = 0; + if(rate < 0.33e6) { + // RX1 + RX2 enabled, 3, 2, 2, 4 + device->regs.rxfilt = B8( 11101111 ) ; + + // TX1 + TX2 enabled, 3, 2, 2, 4 + device->regs.txfilt = B8( 11101111 ) ; + + divfactor = 48; + device->tfir_factor = 2; + } else if(rate < 0.66e6) { + // RX1 + RX2 enabled, 2, 2, 2, 4 + device->regs.rxfilt = B8( 11011111 ) ; + + // TX1 + TX2 enabled, 2, 2, 2, 4 + device->regs.txfilt = B8( 11011111 ) ; + + divfactor = 32; + device->tfir_factor = 2; + } else if(rate <= 20e6) { + // RX1 + RX2 enabled, 2, 2, 2, 2 + device->regs.rxfilt = B8( 11011110 ) ; + + // TX1 + TX2 enabled, 2, 2, 2, 2 + device->regs.txfilt = B8( 11011110 ) ; + + divfactor = 16; + device->tfir_factor = 2; + } else if((rate > 20e6) && (rate < 23e6)) { + // RX1 + RX2 enabled, 3, 2, 2, 2 + device->regs.rxfilt = B8( 11101110 ) ; + + // TX1 + TX2 enabled, 3, 1, 2, 2 + device->regs.txfilt = B8( 11100110 ) ; + + divfactor = 24; + device->tfir_factor = 2; + } else if((rate >= 23e6) && (rate < 41e6)) { + // RX1 + RX2 enabled, 2, 2, 2, 2 + device->regs.rxfilt = B8( 11011110 ) ; + + // TX1 + TX2 enabled, 1, 2, 2, 2 + device->regs.txfilt = B8( 11001110 ) ; + + divfactor = 16; + device->tfir_factor = 2; + } else if((rate >= 41e6) && (rate <= 56e6)) { + // RX1 + RX2 enabled, 3, 1, 2, 2 + device->regs.rxfilt = B8( 11100110 ) ; + + // TX1 + TX2 enabled, 3, 1, 1, 2 + device->regs.txfilt = B8( 11100010 ) ; + + divfactor = 12; + device->tfir_factor = 2; + } else if((rate > 56e6) && (rate <= 61.44e6)) { + // RX1 + RX2 enabled, 3, 1, 1, 2 + device->regs.rxfilt = B8( 11100010 ) ; + + // TX1 + TX2 enabled, 3, 1, 1, 1 + device->regs.txfilt = B8( 11100001 ) ; + + divfactor = 6; + device->tfir_factor = 1; + } else { + // should never get in here + post_err_msg("[setup_rates] INVALID_CODE_PATH"); + } + + msg("[setup_rates] divfactor=%d", divfactor); + + /* Tune the BBPLL to get the ADC and DAC clocks. */ + const double adcclk = tune_bbvco(device, rate * divfactor); + double dacclk = adcclk; + + /* The DAC clock must be <= 336e6, and is either the ADC clock or 1/2 the + * ADC clock.*/ + if(adcclk > 336e6) { + /* Make the DAC clock = ADC/2, and bypass the TXFIR. */ + device->regs.bbpll = device->regs.bbpll | 0x08; + dacclk = adcclk / 2.0; + } else { + device->regs.bbpll = device->regs.bbpll & 0xF7; + } + + /* Set the dividers / interpolators in AD9361. */ + write_ad9361_reg(device, 0x002, device->regs.txfilt); + write_ad9361_reg(device, 0x003, device->regs.rxfilt); + write_ad9361_reg(device, 0x004, device->regs.inputsel); + write_ad9361_reg(device, 0x00A, device->regs.bbpll); + + msg("[setup_rates] adcclk=%f", adcclk); + device->baseband_bw = (adcclk / divfactor); + + /* + The Tx & Rx FIR calculate 16 taps per clock cycle. This limits the number of available taps to the ratio of DAC_CLK/ADC_CLK + to the input data rate multiplied by 16. For example, if the input data rate is 25 MHz and DAC_CLK is 100 MHz, + then the ratio of DAC_CLK to the input data rate is 100/25 or 4. In this scenario, the total number of taps available is 64. + + Also, whilst the Rx FIR filter always has memory available for 128 taps, the Tx FIR Filter can only support a maximum length of 64 taps + in 1x interpolation mode, and 128 taps in 2x & 4x modes. + */ + const int max_tx_taps = AD9361_MIN(AD9361_MIN((16 * (int)((dacclk / rate) + 0.5)), 128), + (device->tfir_factor==1) ? 64 : 128); + const int max_rx_taps = AD9361_MIN((16 * (int)((adcclk / rate) + 0.5)), 128); + + const int num_tx_taps = get_num_taps(max_tx_taps); + const int num_rx_taps = get_num_taps(max_rx_taps); + + setup_tx_fir(device, num_tx_taps); + setup_rx_fir(device, num_rx_taps); + + return device->baseband_bw; +} + +/*********************************************************************** + * Publicly exported functions to host calls + **********************************************************************/ +void init_ad9361(uint64_t handle) { + ad9361_device_t* device = get_ad9361_device(handle); + /* Initialize shadow registers. */ + device->regs.vcodivs = 0x00; + device->regs.inputsel = 0x30; + device->regs.rxfilt = 0x00; + device->regs.txfilt = 0x00; + device->regs.bbpll = 0x02; + device->regs.bbftune_config = 0x1e; + device->regs.bbftune_mode = 0x1e; + + /* Initialize private VRQ fields. */ + device->rx_freq = 0.0; + device->tx_freq = 0.0; + device->req_rx_freq = 0.0; + device->req_tx_freq = 0.0; + device->baseband_bw = 0.0; + device->req_clock_rate = 0.0; + device->req_coreclk = 0.0; + device->bbpll_freq = 0.0; + device->adcclock_freq = 0.0; + device->rx_bbf_tunediv = 0; + device->curr_gain_table = 0; + device->rx1_gain = 0; + device->rx2_gain = 0; + device->tx1_gain = 0; + device->tx2_gain = 0; + + /* Reset the device. */ + write_ad9361_reg(device, 0x000,0x01); + write_ad9361_reg(device, 0x000,0x00); + ad9361_msleep(20); + + /* There is not a WAT big enough for this. */ + write_ad9361_reg(device, 0x3df, 0x01); + + write_ad9361_reg(device, 0x2a6, 0x0e); // Enable master bias + write_ad9361_reg(device, 0x2a8, 0x0e); // Set bandgap trim + + /* Set RFPLL ref clock scale to REFCLK * 2 */ + write_ad9361_reg(device, 0x2ab, 0x07); + write_ad9361_reg(device, 0x2ac, 0xff); + + /* Enable clocks. */ + switch (ad9361_client_get_clocking_mode(device->product)) { + case AD9361_XTAL_N_CLK_PATH: { + write_ad9361_reg(device, 0x009, 0x17); + } break; + + case AD9361_XTAL_P_CLK_PATH: { + write_ad9361_reg(device, 0x009, 0x07); + write_ad9361_reg(device, 0x292, 0x08); + write_ad9361_reg(device, 0x293, 0x80); + write_ad9361_reg(device, 0x294, 0x00); + write_ad9361_reg(device, 0x295, 0x14); + } break; + + default: + post_err_msg("NOT IMPLEMENTED"); + } + ad9361_msleep(20); + + /* Tune the BBPLL, write TX and RX FIRS. */ + setup_rates(device, 50e6); + + /* Setup data ports (FDD dual port DDR): + * FDD dual port DDR CMOS no swap. + * Force TX on one port, RX on the other. */ + switch (ad9361_client_get_digital_interface_mode(device->product)) { + case AD9361_DDR_FDD_LVCMOS: { + write_ad9361_reg(device, 0x010, 0xc8); + write_ad9361_reg(device, 0x011, 0x00); + write_ad9361_reg(device, 0x012, 0x02); + } break; + + case AD9361_DDR_FDD_LVDS: { + write_ad9361_reg(device, 0x010, 0xcc); + write_ad9361_reg(device, 0x011, 0x00); + write_ad9361_reg(device, 0x012, 0x10); + + //LVDS Specific + write_ad9361_reg(device, 0x03C, 0x23); + write_ad9361_reg(device, 0x03D, 0xFF); + write_ad9361_reg(device, 0x03E, 0x0F); + } break; + + default: + post_err_msg("NOT IMPLEMENTED"); + } + + /* Data delay for TX and RX data clocks */ + digital_interface_delays_t timing = ad9361_client_get_digital_interface_timing(device->product); + uint8_t rx_delays = ((timing.rx_clk_delay & 0xF) << 4) | (timing.rx_data_delay & 0xF); + uint8_t tx_delays = ((timing.tx_clk_delay & 0xF) << 4) | (timing.tx_data_delay & 0xF); + write_ad9361_reg(device, 0x006, rx_delays); + write_ad9361_reg(device, 0x007, tx_delays); + + /* Setup AuxDAC */ + write_ad9361_reg(device, 0x018, 0x00); // AuxDAC1 Word[9:2] + write_ad9361_reg(device, 0x019, 0x00); // AuxDAC2 Word[9:2] + write_ad9361_reg(device, 0x01A, 0x00); // AuxDAC1 Config and Word[1:0] + write_ad9361_reg(device, 0x01B, 0x00); // AuxDAC2 Config and Word[1:0] + write_ad9361_reg(device, 0x022, 0x4A); // Invert Bypassed LNA + write_ad9361_reg(device, 0x023, 0xFF); // AuxDAC Manaul/Auto Control + write_ad9361_reg(device, 0x026, 0x00); // AuxDAC Manual Select Bit/GPO Manual Select + write_ad9361_reg(device, 0x030, 0x00); // AuxDAC1 Rx Delay + write_ad9361_reg(device, 0x031, 0x00); // AuxDAC1 Tx Delay + write_ad9361_reg(device, 0x032, 0x00); // AuxDAC2 Rx Delay + write_ad9361_reg(device, 0x033, 0x00); // AuxDAC2 Tx Delay + + /* Setup AuxADC */ + write_ad9361_reg(device, 0x00B, 0x00); // Temp Sensor Setup (Offset) + write_ad9361_reg(device, 0x00C, 0x00); // Temp Sensor Setup (Temp Window) + write_ad9361_reg(device, 0x00D, 0x03); // Temp Sensor Setup (Periodic Measure) + write_ad9361_reg(device, 0x00F, 0x04); // Temp Sensor Setup (Decimation) + write_ad9361_reg(device, 0x01C, 0x10); // AuxADC Setup (Clock Div) + write_ad9361_reg(device, 0x01D, 0x01); // AuxADC Setup (Decimation/Enable) + + /* Setup control outputs. */ + write_ad9361_reg(device, 0x035, 0x07); + write_ad9361_reg(device, 0x036, 0xFF); + + /* Setup GPO */ + write_ad9361_reg(device, 0x03a, 0x27); //set delay register + write_ad9361_reg(device, 0x020, 0x00); // GPO Auto Enable Setup in RX and TX + write_ad9361_reg(device, 0x027, 0x03); // GPO Manual and GPO auto value in ALERT + write_ad9361_reg(device, 0x028, 0x00); // GPO_0 RX Delay + write_ad9361_reg(device, 0x029, 0x00); // GPO_1 RX Delay + write_ad9361_reg(device, 0x02A, 0x00); // GPO_2 RX Delay + write_ad9361_reg(device, 0x02B, 0x00); // GPO_3 RX Delay + write_ad9361_reg(device, 0x02C, 0x00); // GPO_0 TX Delay + write_ad9361_reg(device, 0x02D, 0x00); // GPO_1 TX Delay + write_ad9361_reg(device, 0x02E, 0x00); // GPO_2 TX Delay + write_ad9361_reg(device, 0x02F, 0x00); // GPO_3 TX Delay + + write_ad9361_reg(device, 0x261, 0x00); // RX LO power + write_ad9361_reg(device, 0x2a1, 0x00); // TX LO power + write_ad9361_reg(device, 0x248, 0x0b); // en RX VCO LDO + write_ad9361_reg(device, 0x288, 0x0b); // en TX VCO LDO + write_ad9361_reg(device, 0x246, 0x02); // pd RX cal Tcf + write_ad9361_reg(device, 0x286, 0x02); // pd TX cal Tcf + write_ad9361_reg(device, 0x249, 0x8e); // rx vco cal length + write_ad9361_reg(device, 0x289, 0x8e); // rx vco cal length + write_ad9361_reg(device, 0x23b, 0x80); // set RX MSB?, FIXME 0x89 magic cp + write_ad9361_reg(device, 0x27b, 0x80); // "" TX //FIXME 0x88 see above + write_ad9361_reg(device, 0x243, 0x0d); // set rx prescaler bias + write_ad9361_reg(device, 0x283, 0x0d); // "" TX + + write_ad9361_reg(device, 0x23d, 0x00); // Clear half VCO cal clock setting + write_ad9361_reg(device, 0x27d, 0x00); // Clear half VCO cal clock setting + + /* The order of the following process is EXTREMELY important. If the + * below functions are modified at all, device initialization and + * calibration might be broken in the process! */ + + write_ad9361_reg(device, 0x015, 0x04); // dual synth mode, synth en ctrl en + write_ad9361_reg(device, 0x014, 0x05); // use SPI for TXNRX ctrl, to ALERT, TX on + write_ad9361_reg(device, 0x013, 0x01); // enable ENSM + ad9361_msleep(1); + + calibrate_synth_charge_pumps(device); + + tune_helper(device, RX_TYPE, 800e6); + tune_helper(device, TX_TYPE, 850e6); + + program_mixer_gm_subtable(device); + program_gain_table(device); + setup_gain_control(device); + + calibrate_baseband_rx_analog_filter(device); + calibrate_baseband_tx_analog_filter(device); + calibrate_rx_TIAs(device); + calibrate_secondary_tx_filter(device); + + setup_adc(device); + + calibrate_tx_quadrature(device); + calibrate_rx_quadrature(device); + + // cals done, set PPORT config + switch (ad9361_client_get_digital_interface_mode(device->product)) { + case AD9361_DDR_FDD_LVCMOS: { + write_ad9361_reg(device, 0x012, 0x02); + } break; + + case AD9361_DDR_FDD_LVDS: { + write_ad9361_reg(device, 0x012, 0x10); + } break; + + default: + post_err_msg("NOT IMPLEMENTED"); + } + + write_ad9361_reg(device, 0x013, 0x01); // Set ENSM FDD bit + write_ad9361_reg(device, 0x015, 0x04); // dual synth mode, synth en ctrl en + + /* Default TX attentuation to 10dB on both TX1 and TX2 */ + write_ad9361_reg(device, 0x073, 0x00); + write_ad9361_reg(device, 0x074, 0x00); + write_ad9361_reg(device, 0x075, 0x00); + write_ad9361_reg(device, 0x076, 0x00); + + /* Setup RSSI Measurements */ + write_ad9361_reg(device, 0x150, 0x0E); // RSSI Measurement Duration 0, 1 + write_ad9361_reg(device, 0x151, 0x00); // RSSI Measurement Duration 2, 3 + write_ad9361_reg(device, 0x152, 0xFF); // RSSI Weighted Multiplier 0 + write_ad9361_reg(device, 0x153, 0x00); // RSSI Weighted Multiplier 1 + write_ad9361_reg(device, 0x154, 0x00); // RSSI Weighted Multiplier 2 + write_ad9361_reg(device, 0x155, 0x00); // RSSI Weighted Multiplier 3 + write_ad9361_reg(device, 0x156, 0x00); // RSSI Delay + write_ad9361_reg(device, 0x157, 0x00); // RSSI Wait + write_ad9361_reg(device, 0x158, 0x0D); // RSSI Mode Select + write_ad9361_reg(device, 0x15C, 0x67); // Power Measurement Duration + + /* Turn on the default RX & TX chains. */ + set_active_chains(handle, true, false, false, false); + + /* Set TXers & RXers on (only works in FDD mode) */ + write_ad9361_reg(device, 0x014, 0x21); +} + + +/* This function sets the RX / TX rate between AD9361 and the FPGA, and + * thus determines the interpolation / decimation required in the FPGA to + * achieve the user's requested rate. + * + * This is the only clock setting function that is exposed to the outside. */ +double set_clock_rate(uint64_t handle, const double req_rate) { + ad9361_device_t* device = get_ad9361_device(handle); + + if(req_rate > 61.44e6) { + post_err_msg("Requested master clock rate outside range"); + } + + msg("[set_clock_rate] req_rate=%.10f", req_rate); + + /* UHD has a habit of requesting the same rate like four times when it + * starts up. This prevents that, and any bugs in user code that request + * the same rate over and over. */ + if(freq_is_nearly_equal(req_rate, device->req_clock_rate)) { + return device->baseband_bw; + } + + /* We must be in the SLEEP / WAIT state to do this. If we aren't already + * there, transition the ENSM to State 0. */ + uint8_t current_state = read_ad9361_reg(device, 0x017) & 0x0F; + switch(current_state) { + case 0x05: + /* We are in the ALERT state. */ + write_ad9361_reg(device, 0x014, 0x21); + ad9361_msleep(5); + write_ad9361_reg(device, 0x014, 0x00); + break; + + case 0x0A: + /* We are in the FDD state. */ + write_ad9361_reg(device, 0x014, 0x00); + break; + + default: + post_err_msg("[set_clock_rate:1] AD9361 in unknown state"); + break; + }; + + /* Store the current chain / antenna selections so that we can restore + * them at the end of this routine; all chains will be enabled from + * within setup_rates for calibration purposes. */ + uint8_t orig_tx_chains = device->regs.txfilt & 0xC0; + uint8_t orig_rx_chains = device->regs.rxfilt & 0xC0; + + /* Call into the clock configuration / settings function. This is where + * all the hard work gets done. */ + double rate = setup_rates(device, req_rate); + + msg("[set_clock_rate] rate=%.10f", rate); + + /* Transition to the ALERT state and calibrate everything. */ + write_ad9361_reg(device, 0x015, 0x04); //dual synth mode, synth en ctrl en + write_ad9361_reg(device, 0x014, 0x05); //use SPI for TXNRX ctrl, to ALERT, TX on + write_ad9361_reg(device, 0x013, 0x01); //enable ENSM + ad9361_msleep(1); + + calibrate_synth_charge_pumps(device); + + tune_helper(device, RX_TYPE, device->rx_freq); + tune_helper(device, TX_TYPE, device->tx_freq); + + program_mixer_gm_subtable(device); + program_gain_table(device); + setup_gain_control(device); + program_gains(handle); + + calibrate_baseband_rx_analog_filter(device); + calibrate_baseband_tx_analog_filter(device); + calibrate_rx_TIAs(device); + calibrate_secondary_tx_filter(device); + + setup_adc(device); + + calibrate_tx_quadrature(device); + calibrate_rx_quadrature(device); + + // cals done, set PPORT config + switch (ad9361_client_get_digital_interface_mode(device->product)) { + case AD9361_DDR_FDD_LVCMOS: { + write_ad9361_reg(device, 0x012, 0x02); + } break; + + case AD9361_DDR_FDD_LVDS: { + write_ad9361_reg(device, 0x012, 0x10); + } break; + + default: + post_err_msg("NOT IMPLEMENTED"); + } + write_ad9361_reg(device, 0x013, 0x01); // Set ENSM FDD bit + write_ad9361_reg(device, 0x015, 0x04); // dual synth mode, synth en ctrl en + + /* End the function in the same state as the entry state. */ + switch(current_state) { + case 0x05: + /* We are already in ALERT. */ + break; + + case 0x0A: + /* Transition back to FDD, and restore the original antenna + * / chain selections. */ + device->regs.txfilt = (device->regs.txfilt & 0x3F) | orig_tx_chains; + device->regs.rxfilt = (device->regs.rxfilt & 0x3F) | orig_rx_chains; + + write_ad9361_reg(device, 0x002, device->regs.txfilt); + write_ad9361_reg(device, 0x003, device->regs.rxfilt); + write_ad9361_reg(device, 0x014, 0x21); + break; + + default: + post_err_msg("[set_clock_rate:2] AD9361 in unknown state"); + break; + }; + + return rate; +} + + +/* Set which of the four TX / RX chains provided by AD9361 are active. + * + * AD9361 provides two sets of chains, Side A and Side B. Each side + * provides one TX antenna, and one RX antenna. The B200 maintains the USRP + * standard of providing one antenna connection that is both TX & RX, and + * one that is RX-only - for each chain. Thus, the possible antenna and + * chain selections are: + * + * B200 Antenna AD9361 Side AD9361 Chain + * ------------------------------------------------------------------- + * TX / RX1 Side A TX1 (when switched to TX) + * TX / RX1 Side A RX1 (when switched to RX) + * RX1 Side A RX1 + * + * TX / RX2 Side B TX2 (when switched to TX) + * TX / RX2 Side B RX2 (when switched to RX) + * RX2 Side B RX2 + */ +void set_active_chains(uint64_t handle, bool tx1, bool tx2, bool rx1, bool rx2) { + ad9361_device_t* device = get_ad9361_device(handle); + + /* Clear out the current active chain settings. */ + device->regs.txfilt = device->regs.txfilt & 0x3F; + device->regs.rxfilt = device->regs.rxfilt & 0x3F; + + /* Turn on the different chains based on the passed parameters. */ + if(tx1) { device->regs.txfilt = device->regs.txfilt | 0x40; } + if(tx2) { device->regs.txfilt = device->regs.txfilt | 0x80; } + if(rx1) { device->regs.rxfilt = device->regs.rxfilt | 0x40; } + if(rx2) { device->regs.rxfilt = device->regs.rxfilt | 0x80; } + + /* Check for FDD state */ + uint8_t set_back_to_fdd = 0; + uint8_t ensm_state = read_ad9361_reg(device, 0x017) & 0x0F; + if (ensm_state == 0xA) // FDD + { + /* Put into ALERT state (via the FDD flush state). */ + write_ad9361_reg(device, 0x014, 0x01); + set_back_to_fdd = 1; + } + + /* Wait for FDD flush state to complete (if necessary) */ + while (ensm_state == 0xA || ensm_state == 0xB) + ensm_state = read_ad9361_reg(device, 0x017) & 0x0F; + + /* Turn on / off the chains. */ + write_ad9361_reg(device, 0x002, device->regs.txfilt); + write_ad9361_reg(device, 0x003, device->regs.rxfilt); + + /* Put back into FDD state if necessary */ + if (set_back_to_fdd) + write_ad9361_reg(device, 0x014, 0x21); +} + +/* Tune the RX or TX frequency. + * + * This is the publicly-accessible tune function. It makes sure the tune + * isn't a redundant request, and if not, passes it on to the class's + * internal tune function. + * + * After tuning, it runs any appropriate calibrations. */ +double tune(uint64_t handle, int which, const double value) { + ad9361_device_t* device = get_ad9361_device(handle); + + if(which == RX_TYPE) { + if(freq_is_nearly_equal(value, device->req_rx_freq)) { + return device->rx_freq; + } + + } else if(which == TX_TYPE) { + if(freq_is_nearly_equal(value, device->req_tx_freq)) { + return device->tx_freq; + } + + } else { + post_err_msg("[tune] INVALID_CODE_PATH"); + } + + /* If we aren't already in the ALERT state, we will need to return to + * the FDD state after tuning. */ + int not_in_alert = 0; + if((read_ad9361_reg(device, 0x017) & 0x0F) != 5) { + /* Force the device into the ALERT state. */ + not_in_alert = 1; + write_ad9361_reg(device, 0x014, 0x01); + } + + /* Tune the RF VCO! */ + double tune_freq = tune_helper(device, which, value); + + /* Run any necessary calibrations / setups */ + if(which == RX_TYPE) { + program_gain_table(device); + } + + /* Update the gain settings. */ + program_gains(handle); + + /* Run the calibration algorithms. */ + calibrate_tx_quadrature(device); + calibrate_rx_quadrature(device); + + /* If we were in the FDD state, return it now. */ + if(not_in_alert) { + write_ad9361_reg(device, 0x014, 0x21); + } + + return tune_freq; +} + +/* Set the gain of RX1, RX2, TX1, or TX2. + * + * Note that the 'value' passed to this function is the actual gain value, + * _not_ the gain index. This is the opposite of the eval software's GUI! + * Also note that the RX chains are done in terms of gain, and the TX chains + * are done in terms of attenuation. */ +double set_gain(uint64_t handle, int which, int n, const double value) { + ad9361_device_t* device = get_ad9361_device(handle); + + if(which == RX_TYPE) { + /* Indexing the gain tables requires an offset from the requested + * amount of total gain in dB: + * < 1300MHz: dB + 5 + * >= 1300MHz and < 4000MHz: dB + 3 + * >= 4000MHz and <= 6000MHz: dB + 14 + */ + int gain_offset = 0; + if(device->rx_freq < 1300e6) { + gain_offset = 5; + } else if(device->rx_freq < 4000e6) { + gain_offset = 3; + } else { + gain_offset = 14; + } + + int gain_index = value + gain_offset; + + /* Clip the gain values to the proper min/max gain values. */ + if(gain_index > 76) gain_index = 76; + if(gain_index < 0) gain_index = 0; + + if(n == 1) { + device->rx1_gain = value; + write_ad9361_reg(device, 0x109, gain_index); + } else { + device->rx2_gain = value; + write_ad9361_reg(device, 0x10c, gain_index); + } + + return gain_index - gain_offset; + } else { + /* Setting the below bits causes a change in the TX attenuation word + * to immediately take effect. */ + write_ad9361_reg(device, 0x077, 0x40); + write_ad9361_reg(device, 0x07c, 0x40); + + /* Each gain step is -0.25dB. Calculate the attenuation necessary + * for the requested gain, convert it into gain steps, then write + * the attenuation word. Max gain (so zero attenuation) is 89.75. */ + double atten = AD9361_MAX_GAIN - value; + int attenreg = atten * 4; + if(n == 1) { + device->tx1_gain = value; + write_ad9361_reg(device, 0x073, attenreg & 0xFF); + write_ad9361_reg(device, 0x074, (attenreg >> 8) & 0x01); + } else { + device->tx2_gain = value; + write_ad9361_reg(device, 0x075, attenreg & 0xFF); + write_ad9361_reg(device, 0x076, (attenreg >> 8) & 0x01); + } + return AD9361_MAX_GAIN - ((double)(attenreg)/ 4); + } +} + +/* This function is responsible to dispatch the vendor request call + * to the proper handler + */ + +void ad9361_dispatch(const char* vrb, char* vrb_out) +{ + memcpy(vrb_out, vrb, AD9361_DISPATCH_PACKET_SIZE); //copy request to response memory + tmp_req_buffer = vrb_out; + + ////////////////////////////////////////////// + + double ret_val = 0.0; + int mask = 0; + + const ad9361_transaction_t *request = (const ad9361_transaction_t *)vrb; + ad9361_transaction_t *response = (ad9361_transaction_t *)vrb_out; + + //msg("[dispatch_vrq] action=%d", request->action); + //msg("[dispatch_vrq] action=%f", (double)request->action); + + switch (request->action) { + case AD9361_ACTION_ECHO: + break; // nothing to do + case AD9361_ACTION_INIT: + init_ad9361(request->handle); + break; + case AD9361_ACTION_SET_RX1_GAIN: + ret_val = set_gain(request->handle,RX_TYPE,1,ad9361_double_unpack(request->value.gain)); + ad9361_double_pack(ret_val, response->value.gain); + break; + case AD9361_ACTION_SET_TX1_GAIN: + ret_val = set_gain(request->handle,TX_TYPE,1,ad9361_double_unpack(request->value.gain)); + ad9361_double_pack(ret_val, response->value.gain); + break; + case AD9361_ACTION_SET_RX2_GAIN: + ret_val = set_gain(request->handle,RX_TYPE,2,ad9361_double_unpack(request->value.gain)); + ad9361_double_pack(ret_val, response->value.gain); + break; + case AD9361_ACTION_SET_TX2_GAIN: + ret_val = set_gain(request->handle,TX_TYPE,2,ad9361_double_unpack(request->value.gain)); + ad9361_double_pack(ret_val, response->value.gain); + break; + case AD9361_ACTION_SET_RX_FREQ: + ret_val = tune(request->handle,RX_TYPE, ad9361_double_unpack(request->value.freq)); + ad9361_double_pack(ret_val, response->value.freq); + break; + case AD9361_ACTION_SET_TX_FREQ: + ret_val = tune(request->handle,TX_TYPE, ad9361_double_unpack(request->value.freq)); + ad9361_double_pack(ret_val, response->value.freq); + break; + case AD9361_ACTION_SET_CODEC_LOOP: + data_port_loopback(request->handle,request->value.codec_loop != 0); + break; + case AD9361_ACTION_SET_CLOCK_RATE: + ret_val = set_clock_rate(request->handle,ad9361_double_unpack(request->value.rate)); + ad9361_double_pack(ret_val, response->value.rate); + break; + case AD9361_ACTION_SET_ACTIVE_CHAINS: + mask = request->value.enable_mask; + set_active_chains(request->handle,mask & 1, mask & 2, mask & 4, mask & 8); + break; + default: + post_err_msg("[ad9361_dispatch] NOT IMPLEMENTED"); + break; + } +} diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_platform.h b/host/lib/usrp/common/ad9361_driver/ad9361_platform.h new file mode 100644 index 000000000..0444f3159 --- /dev/null +++ b/host/lib/usrp/common/ad9361_driver/ad9361_platform.h @@ -0,0 +1,64 @@ +// +// Copyright 2014 Ettus Research LLC +// + +#ifndef INCLUDED_AD9361_PLATFORM_H +#define INCLUDED_AD9361_PLATFORM_H + +#include <stdint.h> +#include "ad9361_device.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/*! + * Get chip class from handle + */ +ad9361_device_t* get_ad9361_device(uint64_t handle); + +/*! + * Write a register in the AD9361 space + */ +void write_ad9361_reg(ad9361_device_t* device, uint32_t reg, uint8_t val); + +/*! + * Read a register from the AD9361 space + */ +uint8_t read_ad9361_reg(ad9361_device_t* device, uint32_t reg); + +/*! + * Millisecond sleep + */ +void ad9361_msleep(const uint32_t millis); + +/*! + * Pack a double into 2 uint32s + */ +void ad9361_double_pack(const double input, uint32_t output[2]); + +/*! + * Unpack 2 uint32s into a double + */ +double ad9361_double_unpack(const uint32_t input[2]); + +/*! + * Compute the square root of val + */ +double ad9361_sqrt(double val); + +/*! + * Compute the floor of val + */ +int ad9361_floor_to_int(double val); + +/*! + * Compute the ceil of val + */ +int ad9361_ceil_to_int(double val); + +#ifdef __cplusplus +} +#endif + +#endif /* INCLUDED_AD9361_PLATFORM_H */ diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_synth_lut.h b/host/lib/usrp/common/ad9361_driver/ad9361_synth_lut.h new file mode 100644 index 000000000..cb320e1f4 --- /dev/null +++ b/host/lib/usrp/common/ad9361_driver/ad9361_synth_lut.h @@ -0,0 +1,135 @@ +// +// Copyright 2014 Ettus Research LLC +// + +#ifndef INCLUDED_AD9361_SYNTH_LUT_HPP +#define INCLUDED_AD9361_SYNTH_LUT_HPP + + +double vco_index[53] = {12605000000, 12245000000, 11906000000, 11588000000, + 11288000000, 11007000000, 10742000000, 10492000000, + 10258000000, 10036000000, 9827800000, 9631100000, + 9445300000, 9269800000, 9103600000, 8946300000, + 8797000000, 8655300000, 8520600000, 8392300000, + 8269900000, 8153100000, 8041400000, 7934400000, + 7831800000, 7733200000, 7638400000, 7547100000, + 7459000000, 7374000000, 7291900000, 7212400000, + 7135500000, 7061000000, 6988700000, 6918600000, + 6850600000, 6784600000, 6720500000, 6658200000, + 6597800000, 6539200000, 6482300000, 6427000000, + 6373400000, 6321400000, 6270900000, 6222000000, + 6174500000, 6128400000, 6083600000, 6040100000, + 5997700000}; + +int synth_cal_lut[53][12] = { {10, 0, 4, 0, 15, 8, 8, 13, 4, 13, 15, 9}, + {10, 0, 4, 0, 15, 8, 9, 13, 4, 13, 15, 9}, + {10, 0, 4, 0, 15, 8, 10, 13, 4, 13, 15, 9}, + {10, 0, 4, 0, 15, 8, 11, 13, 4, 13, 15, 9}, + {10, 0, 4, 0, 15, 8, 11, 13, 4, 13, 15, 9}, + {10, 0, 4, 0, 14, 8, 12, 13, 4, 13, 15, 9}, + {10, 0, 4, 0, 14, 8, 13, 13, 4, 13, 15, 9}, + {10, 0, 5, 1, 14, 9, 13, 13, 4, 13, 15, 9}, + {10, 0, 5, 1, 14, 9, 14, 13, 4, 13, 15, 9}, + {10, 0, 5, 1, 14, 9, 15, 13, 4, 13, 15, 9}, + {10, 0, 5, 1, 14, 9, 15, 13, 4, 13, 15, 9}, + {10, 0, 5, 1, 13, 9, 16, 13, 4, 13, 15, 9}, + {10, 0, 5, 1, 13, 9, 17, 13, 4, 13, 15, 9}, + {10, 0, 5, 1, 13, 9, 18, 13, 4, 13, 15, 9}, + {10, 0, 5, 1, 13, 9, 18, 13, 4, 13, 15, 9}, + {10, 0, 5, 1, 13, 9, 19, 13, 4, 13, 15, 9}, + {10, 1, 6, 1, 15, 11, 14, 13, 4, 13, 15, 9}, + {10, 1, 6, 1, 15, 11, 14, 13, 4, 13, 15, 9}, + {10, 1, 6, 1, 15, 11, 15, 13, 4, 13, 15, 9}, + {10, 1, 6, 1, 15, 11, 15, 13, 4, 13, 15, 9}, + {10, 1, 6, 1, 15, 11, 16, 13, 4, 13, 15, 9}, + {10, 1, 6, 1, 15, 11, 16, 13, 4, 13, 15, 9}, + {10, 1, 6, 1, 15, 11, 17, 13, 4, 13, 15, 9}, + {10, 1, 6, 1, 15, 11, 17, 13, 4, 13, 15, 9}, + {10, 1, 6, 1, 15, 11, 18, 13, 4, 13, 15, 9}, + {10, 1, 6, 1, 15, 11, 18, 13, 4, 13, 15, 9}, + {10, 1, 6, 1, 15, 11, 19, 13, 4, 13, 15, 9}, + {10, 1, 6, 1, 15, 11, 19, 13, 4, 13, 15, 9}, + {10, 1, 6, 1, 15, 11, 20, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 12, 20, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 12, 21, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 12, 21, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 14, 22, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 14, 22, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 14, 23, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 14, 23, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 14, 24, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 14, 24, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 14, 25, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 14, 25, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 14, 26, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 14, 26, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 14, 27, 13, 4, 13, 15, 9}, + {10, 1, 7, 2, 15, 14, 27, 13, 4, 13, 15, 9}, + {10, 3, 7, 3, 15, 12, 18, 13, 4, 13, 15, 9}, + {10, 3, 7, 3, 15, 12, 18, 13, 4, 13, 15, 9}, + {10, 3, 7, 3, 15, 12, 18, 13, 4, 13, 15, 9}, + {10, 3, 7, 3, 15, 12, 19, 13, 4, 13, 15, 9}, + {10, 3, 7, 3, 15, 12, 19, 13, 4, 13, 15, 9}, + {10, 3, 7, 3, 15, 12, 19, 13, 4, 13, 15, 9}, + {10, 3, 7, 3, 15, 12, 19, 13, 4, 13, 15, 9}, + {10, 3, 7, 3, 15, 12, 20, 13, 4, 13, 15, 9}, + {10, 3, 7, 3, 15, 12, 20, 13, 4, 13, 15, 9}}; + + +#if 0 /* This is the table for a 40MHz RFPLL Reference */ +int synth_cal_lut[53][12] = { {10, 0, 4, 0, 15, 8, 8, 12, 3, 14, 15, 11}, + {10, 0, 4, 0, 15, 8, 9, 12, 3, 14, 15, 11}, + {10, 0, 4, 0, 15, 8, 9, 12, 3, 14, 15, 11}, + {10, 0, 4, 0, 15, 8, 10, 12, 3, 14, 15, 11}, + {10, 0, 4, 0, 15, 8, 11, 12, 3, 14, 15, 11}, + {10, 0, 4, 0, 15, 8, 11, 12, 3, 14, 15, 11}, + {10, 0, 4, 0, 14, 8, 12, 12, 3, 14, 15, 11}, + {10, 0, 5, 1, 14, 9, 13, 12, 3, 14, 15, 11}, + {10, 0, 5, 1, 14, 9, 13, 12, 3, 14, 15, 11}, + {10, 0, 5, 1, 14, 9, 14, 12, 3, 14, 15, 11}, + {10, 0, 5, 1, 14, 9, 15, 12, 3, 14, 15, 11}, + {10, 0, 5, 1, 14, 9, 15, 12, 3, 14, 15, 11}, + {10, 0, 5, 1, 14, 9, 16, 12, 3, 14, 15, 11}, + {10, 0, 5, 1, 14, 9, 17, 12, 3, 14, 15, 11}, + {10, 0, 5, 1, 14, 9, 17, 12, 3, 14, 15, 11}, + {10, 0, 5, 1, 14, 9, 18, 12, 3, 14, 15, 11}, + {10, 1, 6, 1, 15, 11, 13, 12, 3, 14, 15, 11}, + {10, 1, 6, 1, 15, 11, 14, 12, 3, 14, 15, 11}, + {10, 1, 6, 1, 15, 11, 14, 12, 3, 14, 15, 11}, + {10, 1, 6, 1, 15, 11, 15, 12, 3, 14, 15, 11}, + {10, 1, 6, 1, 15, 11, 15, 12, 3, 14, 15, 11}, + {10, 1, 6, 1, 15, 11, 16, 12, 3, 14, 15, 11}, + {10, 1, 6, 1, 15, 11, 16, 12, 3, 14, 15, 11}, + {10, 1, 6, 1, 15, 11, 17, 12, 3, 14, 15, 11}, + {10, 1, 6, 1, 15, 11, 17, 12, 3, 14, 15, 11}, + {10, 1, 6, 1, 15, 11, 17, 12, 3, 14, 15, 11}, + {10, 1, 6, 1, 15, 11, 18, 12, 3, 14, 15, 11}, + {10, 1, 6, 1, 15, 11, 18, 12, 3, 14, 15, 11}, + {10, 1, 6, 1, 15, 11, 19, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 12, 19, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 12, 20, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 12, 20, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 14, 21, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 14, 21, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 14, 22, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 14, 22, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 14, 23, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 14, 23, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 14, 24, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 14, 24, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 14, 25, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 14, 25, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 14, 26, 12, 3, 14, 15, 11}, + {10, 1, 7, 2, 15, 14, 26, 12, 3, 14, 15, 11}, + {10, 3, 7, 3, 15, 12, 17, 12, 3, 14, 15, 11}, + {10, 3, 7, 3, 15, 12, 17, 12, 3, 14, 15, 11}, + {10, 3, 7, 3, 15, 12, 17, 12, 3, 14, 15, 11}, + {10, 3, 7, 3, 15, 12, 18, 12, 3, 14, 15, 11}, + {10, 3, 7, 3, 15, 12, 18, 12, 3, 14, 15, 11}, + {10, 3, 7, 3, 15, 12, 18, 12, 3, 14, 15, 11}, + {10, 3, 7, 3, 15, 12, 18, 12, 3, 14, 15, 11}, + {10, 3, 7, 3, 15, 12, 19, 12, 3, 14, 15, 11}, + {10, 3, 7, 3, 15, 12, 19, 12, 3, 14, 15, 11} }; +#endif + +#endif /* INCLUDED_AD9361_SYNTH_LUT_HPP */ diff --git a/host/lib/usrp/common/ad9361_transaction.h b/host/lib/usrp/common/ad9361_driver/ad9361_transaction.h index 693f32e41..06541d2ee 100644 --- a/host/lib/usrp/common/ad9361_transaction.h +++ b/host/lib/usrp/common/ad9361_driver/ad9361_transaction.h @@ -1,18 +1,5 @@ // -// Copyright 2013 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/>. +// Copyright 2014 Ettus Research LLC // #ifndef INCLUDED_AD9361_TRANSACTION_H @@ -25,8 +12,8 @@ extern "C" { #endif //various constants -#define AD9361_TRANSACTION_VERSION 0x4 -#define AD9361_DISPATCH_PACKET_SIZE 64 +#define AD9361_TRANSACTION_VERSION 0x5 +#define AD9361_DISPATCH_PACKET_SIZE 64 //action types #define AD9361_ACTION_ECHO 0 @@ -41,28 +28,6 @@ extern "C" { #define AD9361_ACTION_SET_CLOCK_RATE 9 #define AD9361_ACTION_SET_ACTIVE_CHAINS 10 -typedef union -{ - double d; - uint32_t x[2]; -} ad9361_double_union_t; - -static inline void ad9361_double_pack(const double input, uint32_t output[2]) -{ - ad9361_double_union_t p = {}; - p.d = input; - output[0] = p.x[0]; - output[1] = p.x[1]; -} - -static inline double ad9361_double_unpack(const uint32_t input[2]) -{ - ad9361_double_union_t p = {}; - p.x[0] = input[0]; - p.x[1] = input[1]; - return p.d; -} - typedef struct { //version is expected to be AD9361_TRANSACTION_VERSION @@ -72,6 +37,9 @@ typedef struct //sequence number - increment every call for sanity uint32_t sequence; + //location info for the ad9361 chip class + uint64_t handle; + //action tells us what to do, see AD9361_ACTION_* uint32_t action; diff --git a/host/lib/usrp/common/ad9361_platform_uhd.cpp b/host/lib/usrp/common/ad9361_platform_uhd.cpp new file mode 100644 index 000000000..10ea67345 --- /dev/null +++ b/host/lib/usrp/common/ad9361_platform_uhd.cpp @@ -0,0 +1,86 @@ +// +// Copyright 2014 Ettus Research LLC +// + +#include <uhd/utils/msg.hpp> +#include <cmath> +#include <cstdlib> +#include <cstring> +#include <stdint.h> +#include <ad9361_platform.h> +#include "ad9361_ctrl.hpp" +#include <stdio.h> +#include <boost/date_time/posix_time/posix_time.hpp> +#include <boost/thread/thread.hpp> + +//If the platform for the AD9361 driver is UHD (host) then the handle is simply +//a pointer to a device class instance +ad9361_device_t* get_ad9361_device(uint64_t handle) +{ + return reinterpret_cast<ad9361_device_t*>(reinterpret_cast<void*>(handle)); +} + +uint8_t read_ad9361_reg(ad9361_device_t* device, uint32_t reg) +{ + if (device && device->io_iface) { + //If the platform for the AD9361 driver is UHD (host) then the io_iface is + //a pointer to a ad9361_io implementation + ad9361_io* io_iface = reinterpret_cast<ad9361_io*>(device->io_iface); + return io_iface->peek8(reg); + } else { + return 0; + } +} + +void write_ad9361_reg(ad9361_device_t* device, uint32_t reg, uint8_t val) +{ + if (device && device->io_iface) { + //If the platform for the AD9361 driver is UHD (host) then the io_iface is + //a pointer to a ad9361_io implementation + ad9361_io* io_iface = reinterpret_cast<ad9361_io*>(device->io_iface); + io_iface->poke8(reg, val); + } +} + +typedef union +{ + double d; + uint32_t x[2]; +} ad9361_double_union_t; + +void ad9361_double_pack(const double input, uint32_t output[2]) +{ + ad9361_double_union_t p = {}; + p.d = input; + output[0] = p.x[0]; + output[1] = p.x[1]; +} + +double ad9361_double_unpack(const uint32_t input[2]) +{ + ad9361_double_union_t p = {}; + p.x[0] = input[0]; + p.x[1] = input[1]; + return p.d; +} + +double ad9361_sqrt(double val) +{ + return std::sqrt(val); +} + +void ad9361_msleep(const uint32_t millis) +{ + boost::this_thread::sleep(boost::posix_time::milliseconds(millis)); +} + +int ad9361_floor_to_int(double val) +{ + return static_cast<int>(std::floor(val)); +} + +int ad9361_ceil_to_int(double val) +{ + return static_cast<int>(std::ceil(val)); +} + |