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#
# Copyright 2021 Ettus Research, a National Instruments Brand
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
"""
Common daughterboard code for E310 and E320
"""
from usrp_mpm import lib # Pulls in everything from C++-land
from usrp_mpm.mpmutils import async_exec
class AD936xDboard:
"""
Holds all common code between E310 and E320 (AD936x-based MPM devices)
"""
MIN_MASTER_CLK_RATE = 220e3
MAX_MASTER_CLK_RATE = 61.44e6
def __init__(self, mb_regs_getter):
self.rfic = None
self.log = None
self.master_clock_rate = None
self.swap_fe = False
self._mb_regs_getter = mb_regs_getter
def tear_down_rfic(self):
"""
De-init this object as much as possible.
"""
self.log.trace("Tearing down E3xx DB object!")
for method in [
x for x in dir(self.rfic)
if not x.startswith("_") and callable(getattr(self.rfic, x))]:
delattr(self, method)
self.rfic = None
def _init_cat_api(self, rfic):
"""
Propagate the C++ Catalina API into Python land.
"""
self.rfic = rfic
def export_method(obj, method):
" Export a method object, including docstring "
meth_obj = getattr(obj, method)
def func(*args):
" Functor for storing docstring too "
return meth_obj(*args)
func.__doc__ = meth_obj.__doc__
return func
self.log.trace("Forwarding AD9361 methods to daughterboard class...")
for method in [
x for x in dir(self.rfic)
if not x.startswith("_") and \
callable(getattr(self.rfic, x))]:
self.log.trace("adding {}".format(method))
setattr(self, method, export_method(rfic, method))
def init_rfic(self, master_clock_rate):
"""
Initialize chains and clock rate on AD936x
"""
assert self.MIN_MASTER_CLK_RATE <= master_clock_rate <= self.MAX_MASTER_CLK_RATE, \
"Invalid master clock rate: {:.02f} MHz".format(
master_clock_rate / 1e6)
master_clock_rate_changed = master_clock_rate != self.master_clock_rate
if master_clock_rate_changed:
self.master_clock_rate = master_clock_rate
self.log.debug("Updating master clock rate to {:.02f} MHz!".format(
self.master_clock_rate / 1e6
))
# Some default chains on -- needed for setup purposes
self.rfic.set_active_chains(True, False, True, False)
self.set_catalina_clock_rate(self.master_clock_rate)
def get_ad9361_lo_lock(self, which):
"""
Return LO lock status (Boolean!) of AD9361. 'which' must be
either 'tx' or 'rx'
"""
mboard_regs_control = self._mb_regs_getter()
if which == "tx":
return mboard_regs_control.get_ad9361_tx_lo_lock()
if which == "rx":
return mboard_regs_control.get_ad9361_rx_lo_lock()
self.log.warning("get_ad9361_lo_lock(): Invalid which param `{}'"
.format(which))
return False
def get_lo_lock_sensor(self, which):
"""
Get sensor dict with LO lock status
"""
self.log.trace("Reading LO Lock.")
lo_locked = self.get_ad9361_lo_lock(which)
return {
'name': 'ad9361_lock',
'type': 'BOOLEAN',
'unit': 'locked' if lo_locked else 'unlocked',
'value': str(lo_locked).lower(),
}
def get_rx_lo_lock_sensor(self, _chan):
"""
RX-specific version of get_lo_lock_sensor() (for UHD API)
"""
return self.get_lo_lock_sensor('rx')
def get_tx_lo_lock_sensor(self, _chan):
"""
TX-specific version of get_lo_lock_sensor() (for UHD API)
"""
return self.get_lo_lock_sensor('tx')
def get_catalina_temp_sensor(self, _):
"""
Get temperature sensor reading of Catalina.
"""
# Note: the unused argument is channel
self.log.trace("Reading Catalina temperature.")
return {
'name': 'ad9361_temperature',
'type': 'REALNUM',
'unit': 'C',
'value': str(self.rfic.get_temperature())
}
def get_rssi_val(self, which):
"""
Return the current RSSI of `which` chain in Catalina
"""
return self.rfic.get_rssi(which)
def get_rssi_sensor(self, chan):
"""
Return a sensor dictionary containing the current RSSI per channel
in the RFIC
"""
which = {
# No frontend swap:
False: {0: 'RX1', 1: 'RX2'},
# Frontend swap:
True: {0: 'RX2', 1: 'RX1'},
}[self.swap_fe][chan]
return {
'name': 'rssi',
'type': 'REALNUM',
'unit': 'dB',
'value': str(self.get_rssi_val(which)),
}
def set_catalina_clock_rate(self, rate):
"""
Async call to catalina set_clock_rate
"""
self.log.trace("Setting Clock rate to {}".format(rate))
async_exec(lib.ad9361, "set_clock_rate", self.rfic, rate)
return rate
def catalina_tune(self, which, freq):
"""
Async call to catalina tune
"""
self.log.trace("Tuning {} {}".format(which, freq))
async_exec(lib.ad9361, "tune", self.rfic, which, freq)
return self.rfic.get_freq(which)
def get_master_clock_rate(self):
" Return master clock rate (== sampling rate) "
return self.master_clock_rate
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