Vadim Yanitskiy has uploaded this change for review. ( https://gerrit.osmocom.org/12676
Change subject: apps/grgsm_trx: introduce initial LMS driver support ...................................................................... apps/grgsm_trx: introduce initial LMS driver support Change-Id: Ie983b10d1814906b6e659213f865e58d0f5c08e4 --- M apps/grgsm_trx M python/trx/CMakeLists.txt A python/trx/radio_if_lms.py 3 files changed, 82 insertions(+), 1 deletion(-) git pull ssh://gerrit.osmocom.org:29418/gr-gsm refs/changes/76/12676/1 diff --git a/apps/grgsm_trx b/apps/grgsm_trx index 7da9e06..fb5a005 100755 --- a/apps/grgsm_trx +++ b/apps/grgsm_trx @@ -59,6 +59,8 @@ if argv.driver == "uhd": from grgsm.trx.radio_if_uhd import RadioInterfaceUHD as Radio + elif argv.driver == "lms": + from grgsm.trx.radio_if_lms import RadioInterfaceLMS as Radio else: raise ValueError("Unknown RadioInterface driver '%s'" % argv.driver) @@ -117,7 +119,7 @@ phy_group = parser.add_argument_group("PHY parameters") phy_group.add_argument("--driver", dest = "driver", type = str, default = "uhd", - choices = ["uhd"], + choices = ["uhd", "lms"], help = "Set device driver (default %(default)s)") phy_group.add_argument("-a", "--args", dest = "args", type = str, default = "", diff --git a/python/trx/CMakeLists.txt b/python/trx/CMakeLists.txt index dbb3daa9..697687b 100644 --- a/python/trx/CMakeLists.txt +++ b/python/trx/CMakeLists.txt @@ -25,6 +25,7 @@ ctrl_if_bb.py radio_if.py radio_if_uhd.py + radio_if_lms.py radio_if_grc.py transceiver.py dict_toggle_sign.py diff --git a/python/trx/radio_if_lms.py b/python/trx/radio_if_lms.py new file mode 100644 index 0000000..4585a5a --- /dev/null +++ b/python/trx/radio_if_lms.py @@ -0,0 +1,78 @@ +#!/usr/bin/env python2 +# -*- coding: utf-8 -*- + +# GR-GSM based transceiver +# Radio interface for Lime devices +# +# (C) 2019 by Vadim Yanitskiy <axilira...@gmail.com> +# +# All Rights Reserved +# +# 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 2 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, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +import limesdr + +from radio_if import RadioInterface + +class RadioInterfaceLMS(RadioInterface): + LMS_DEV_TYPE_LIMESDR_MINI = 0x01 + LMS_DEV_TYPE_LIMENET_MICRO = 0x02 + LMS_DEV_TYPE_LIMESDR_USB = 0x03 + + # FIXME: hard-coded variables shall be replaced + # by command line arguments (or even auto-detected)! + lms_dev_serial = "1D3937DA65C85F" + lms_dev_type = LMS_DEV_TYPE_LIMESDR_MINI + lms_len_tag_name = "packet_len" + lms_dev_ch_mode = 1 + + # Human-readable description + def __str__(self): + return "LMS" + + @property # Signal processing delay of PHY + def phy_proc_delay(self): + # FIXME: the current value is measured for USRP B2X0 at 26e6, + # we should measure it for LimeSDR separately! + return (285.616 + 2 * self.GSM_SYM_PERIOD_uS) * 1e-6 + + def phy_init_source(self): + self._phy_src = limesdr.source( + self.lms_dev_serial, self.lms_dev_type, + self.lms_dev_ch_mode, 0, "") + + self._phy_src.set_sample_rate(self.sample_rate) + self._phy_src.set_gain(self.rx_gain, 0) + + def phy_init_sink(self): + self._phy_sink = limesdr.sink( + self.lms_dev_serial, self.lms_dev_type, + self.lms_dev_ch_mode, 0, "", + self.lms_len_tag_name) + + self._phy_sink.set_sample_rate(self.sample_rate) + self._phy_sink.set_gain(self.tx_gain, 0) + + def phy_set_rx_freq(self, freq): + self._phy_src.set_center_freq(freq, 0) + + def phy_set_tx_freq(self, freq): + self._phy_sink.set_center_freq(freq, 0) + + def phy_set_rx_gain(self, gain): + self._phy_src.set_gain(gain, 0) + + def phy_set_tx_gain(self, gain): + self._phy_sink.set_gain(gain, 0) -- To view, visit https://gerrit.osmocom.org/12676 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: gr-gsm Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: Ie983b10d1814906b6e659213f865e58d0f5c08e4 Gerrit-Change-Number: 12676 Gerrit-PatchSet: 1 Gerrit-Owner: Vadim Yanitskiy <axilira...@gmail.com>