From 25b1550dba377b6dc86bee3e6f269a721efee655 Mon Sep 17 00:00:00 2001 From: Johnathan Corgan Date: Fri, 12 Aug 2011 12:33:22 -0700 Subject: gr-uhd: post received async messages to user supplied msg queue --- gr-uhd/lib/gr_uhd_usrp_source.cc | 22 ++++++++++++++++++---- 1 file changed, 18 insertions(+), 4 deletions(-) (limited to 'gr-uhd/lib') diff --git a/gr-uhd/lib/gr_uhd_usrp_source.cc b/gr-uhd/lib/gr_uhd_usrp_source.cc index 669f890ea..2987d528c 100644 --- a/gr-uhd/lib/gr_uhd_usrp_source.cc +++ b/gr-uhd/lib/gr_uhd_usrp_source.cc @@ -33,7 +33,8 @@ public: uhd_usrp_source_impl( const uhd::device_addr_t &device_addr, const uhd::io_type_t &io_type, - size_t num_channels + size_t num_channels, + gr_msg_queue_sptr async_queue ): gr_sync_block( "gr uhd usrp source", @@ -43,7 +44,8 @@ public: _type(io_type), _nchan(num_channels), _stream_now(_nchan == 1), - _tmp_buffs(_nchan) + _tmp_buffs(_nchan), + _async_queue(async_queue) { _dev = uhd::usrp::multi_usrp::make(device_addr); } @@ -222,6 +224,15 @@ public: return num_samps; } + // Scan queue and post async events + while (_dev->get_device()->recv_async_msg(_asyncdata, 0.0)) { + if (_async_queue) { + gr_message_sptr m = gr_make_message(0, 0.0, 0.0, sizeof(_asyncdata)); + memcpy(m->msg(), &_asyncdata, sizeof(_asyncdata)); + _async_queue->insert_tail(m); + } + } + return num_samps; } @@ -247,6 +258,8 @@ private: bool _stream_now; gr_vector_void_star _tmp_buffs; uhd::rx_metadata_t _metadata; + uhd::async_metadata_t _asyncdata; + gr_msg_queue_sptr _async_queue; }; @@ -256,9 +269,10 @@ private: boost::shared_ptr uhd_make_usrp_source( const uhd::device_addr_t &device_addr, const uhd::io_type_t &io_type, - size_t num_channels + size_t num_channels, + gr_msg_queue_sptr async_queue ){ return boost::shared_ptr( - new uhd_usrp_source_impl(device_addr, io_type, num_channels) + new uhd_usrp_source_impl(device_addr, io_type, num_channels, async_queue) ); } -- cgit From 893f946b7a652497994309092fe84fb33504852c Mon Sep 17 00:00:00 2001 From: Thomas Tsou Date: Fri, 19 Aug 2011 14:50:55 -0700 Subject: gr-uhd: add async metadata source block Add asynchronous message "block" that is independent of normal gnuradio scheduler. The block instantiates a thread to wait for asynchronous messages from UHD and encapsulates them in a gr_message posted into a message queue. The interface is empty because the block is internally driven and accessed through the the constructor specified message queue. --- gr-uhd/lib/Makefile.am | 3 +- gr-uhd/lib/gr_uhd_amsg_source.cc | 88 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 90 insertions(+), 1 deletion(-) create mode 100644 gr-uhd/lib/gr_uhd_amsg_source.cc (limited to 'gr-uhd/lib') diff --git a/gr-uhd/lib/Makefile.am b/gr-uhd/lib/Makefile.am index c27682f7f..c322c6124 100644 --- a/gr-uhd/lib/Makefile.am +++ b/gr-uhd/lib/Makefile.am @@ -31,7 +31,8 @@ lib_LTLIBRARIES = libgnuradio-uhd.la libgnuradio_uhd_la_SOURCES = \ gr_uhd_usrp_source.cc \ - gr_uhd_usrp_sink.cc + gr_uhd_usrp_sink.cc \ + gr_uhd_amsg_source.cc libgnuradio_uhd_la_LIBADD = \ $(GNURADIO_CORE_LA) \ diff --git a/gr-uhd/lib/gr_uhd_amsg_source.cc b/gr-uhd/lib/gr_uhd_amsg_source.cc new file mode 100644 index 000000000..f2958f115 --- /dev/null +++ b/gr-uhd/lib/gr_uhd_amsg_source.cc @@ -0,0 +1,88 @@ +/* + * Copyright 2011 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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, or (at your option) + * any later version. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#include +#include +#include + +/*********************************************************************** + * UHD Asynchronous Message Source Impl + **********************************************************************/ +class uhd_amsg_source_impl : public uhd_amsg_source{ +public: + uhd_amsg_source_impl( + const uhd::device_addr_t &device_addr, + gr_msg_queue_sptr msgq + ): + _msgq(msgq), _running(true) + { + _dev = uhd::usrp::multi_usrp::make(device_addr); + _amsg_thread = + gruel::thread(boost::bind(&uhd_amsg_source_impl::recv_loop, this)); + } + + ~uhd_amsg_source_impl() + { + _running = false; + _amsg_thread.join(); + } + + void recv_loop() + { + gr_message_sptr msg; + uhd::async_metadata_t *md; + + while (_running) { + msg = gr_make_message(0, 0.0, 0.0, sizeof(uhd::async_metadata_t)); + md = (uhd::async_metadata_t *) msg->msg(); + + while (!_dev->get_device()->recv_async_msg(*md, 0.1)) { + if (!_running) + return; + } + + post(msg); + } + } + + void post(gr_message_sptr msg) + { + _msgq->insert_tail(msg); + } + +protected: + uhd::usrp::multi_usrp::sptr _dev; + gruel::thread _amsg_thread; + gr_msg_queue_sptr _msgq; + bool _running; +}; + +/*********************************************************************** + * Make UHD Asynchronous Message Source + **********************************************************************/ +boost::shared_ptr uhd_make_amsg_source( + const uhd::device_addr_t &device_addr, + gr_msg_queue_sptr msgq +){ + return boost::shared_ptr( + new uhd_amsg_source_impl(device_addr, msgq) + ); +} -- cgit From 0d2205758561682fed5490fb783b3eea380a387a Mon Sep 17 00:00:00 2001 From: Johnathan Corgan Date: Fri, 19 Aug 2011 19:05:05 -0700 Subject: Revert "gr-uhd: post received async messages to user supplied msg queue" This reverts commit 25b1550dba377b6dc86bee3e6f269a721efee655. --- gr-uhd/lib/gr_uhd_usrp_source.cc | 22 ++++------------------ 1 file changed, 4 insertions(+), 18 deletions(-) (limited to 'gr-uhd/lib') diff --git a/gr-uhd/lib/gr_uhd_usrp_source.cc b/gr-uhd/lib/gr_uhd_usrp_source.cc index 2987d528c..669f890ea 100644 --- a/gr-uhd/lib/gr_uhd_usrp_source.cc +++ b/gr-uhd/lib/gr_uhd_usrp_source.cc @@ -33,8 +33,7 @@ public: uhd_usrp_source_impl( const uhd::device_addr_t &device_addr, const uhd::io_type_t &io_type, - size_t num_channels, - gr_msg_queue_sptr async_queue + size_t num_channels ): gr_sync_block( "gr uhd usrp source", @@ -44,8 +43,7 @@ public: _type(io_type), _nchan(num_channels), _stream_now(_nchan == 1), - _tmp_buffs(_nchan), - _async_queue(async_queue) + _tmp_buffs(_nchan) { _dev = uhd::usrp::multi_usrp::make(device_addr); } @@ -224,15 +222,6 @@ public: return num_samps; } - // Scan queue and post async events - while (_dev->get_device()->recv_async_msg(_asyncdata, 0.0)) { - if (_async_queue) { - gr_message_sptr m = gr_make_message(0, 0.0, 0.0, sizeof(_asyncdata)); - memcpy(m->msg(), &_asyncdata, sizeof(_asyncdata)); - _async_queue->insert_tail(m); - } - } - return num_samps; } @@ -258,8 +247,6 @@ private: bool _stream_now; gr_vector_void_star _tmp_buffs; uhd::rx_metadata_t _metadata; - uhd::async_metadata_t _asyncdata; - gr_msg_queue_sptr _async_queue; }; @@ -269,10 +256,9 @@ private: boost::shared_ptr uhd_make_usrp_source( const uhd::device_addr_t &device_addr, const uhd::io_type_t &io_type, - size_t num_channels, - gr_msg_queue_sptr async_queue + size_t num_channels ){ return boost::shared_ptr( - new uhd_usrp_source_impl(device_addr, io_type, num_channels, async_queue) + new uhd_usrp_source_impl(device_addr, io_type, num_channels) ); } -- cgit