osmocom-sdr November 2020

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gr-osmosdr: add clock_source= parameter
by Michael Loeffler 26 Mar '21

26 Mar '21

Hello, the attached patch allows to set the clock_source on uhd devices in programs like gqrx. Bye

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Re: [patch]: add xtrx support
by Sipos Csaba 18 Nov '20

18 Nov '20

Dear Eric, About two weeks ago I sent in a patch that adds XTRX support to gr-osmosdr. I wanted to ask if there is any problem with it, or maybe there are some other reasons it did not get merged? Please let me know if any further work is needed. Regards, Csaba

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[PATCH] [hackrf] Fix hackrf receive hangs by checking before each lock wait
by Adrian Chadd 18 Nov '20

18 Nov '20

Fix receive path hangs if another thread closes down the hackrf receive whilst this buffer receive function is waiting to be woken up. Now: * Sleep for up to 100ms each time waiting for the cond to be kicked; * Check whether streaming is still enabled each time rather than only when the function is entered. This fixes hangs where consumers like gqrx via gnuradio will do a stop_rx/start_rx very quickly to change something, and the buffer receive path is waiting for a buffer. --- lib/hackrf/hackrf_source_c.cc | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/lib/hackrf/hackrf_source_c.cc b/lib/hackrf/hackrf_source_c.cc index 662d04a..03ea3bd 100644 --- a/lib/hackrf/hackrf_source_c.cc +++ b/lib/hackrf/hackrf_source_c.cc @@ -30,6 +30,7 @@ #include <stdexcept> #include <iostream> +#include <chrono> #include <gnuradio/io_signature.h> @@ -203,8 +204,15 @@ int hackrf_source_c::work( int noutput_items, { std::unique_lock<std::mutex> lock(_buf_mutex); - while (_buf_used < 3 && running) // collect at least 3 buffers - _buf_cond.wait( lock ); + while (_buf_used < 3 && running) { // collect at least 3 buffers + _buf_cond.wait_for( lock , std::chrono::milliseconds(100)); + + // Re-check whether the device has closed or stopped streaming + if ( _dev.get() ) + running = (hackrf_is_streaming( _dev.get() ) == HACKRF_TRUE); + else + running = false; + } } if ( ! running ) -- 2.28.0

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[PATCH] Add back pkg-config
by argilo＠gmail.com 18 Nov '20

18 Nov '20

From: Clayton Smith <argilo(a)gmail.com> When gr-osmosdr was updated to GNU Radio 3.8, generation of gnuradio-osmosdr.pc was removed. Other software uses pkg-config to find gr-osmosdr, so I think we should add it back. This fixes http://osmocom.org/issues/4423 --- CMakeLists.txt | 37 +++++++++++++++++++++++++++++++++++++ gnuradio-osmosdr.pc.in | 15 +++++++++++++++ 2 files changed, 52 insertions(+) create mode 100644 gnuradio-osmosdr.pc.in diff --git a/CMakeLists.txt b/CMakeLists.txt index c23cb49530..868057dcc8 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -275,6 +275,43 @@ if(ENABLE_PYTHON) endif(ENABLE_PYTHON) add_subdirectory(docs) +######################################################################## +# Create Pkg Config File +######################################################################## +FOREACH(inc ${Boost_INCLUDE_DIRS}) + LIST(APPEND GR_OSMOSDR_PC_CFLAGS "-I${inc}") +ENDFOREACH(inc) + +FOREACH(lib ${Boost_LIBRARY_DIRS}) + LIST(APPEND GR_OSMOSDR_PC_LIBS "-L${lib}") +ENDFOREACH(lib) + +# use space-separation format for the pc file +STRING(REPLACE ";" " " GR_OSMOSDR_PC_REQUIRES "${GR_OSMOSDR_PC_REQUIRES}") +STRING(REPLACE ";" " " GR_OSMOSDR_PC_CFLAGS "${GR_OSMOSDR_PC_CFLAGS}") +STRING(REPLACE ";" " " GR_OSMOSDR_PC_LIBS "${GR_OSMOSDR_PC_LIBS}") + +# unset these vars to avoid hard-coded paths to cross environment +IF(CMAKE_CROSSCOMPILING) + UNSET(GR_OSMOSDR_PC_CFLAGS) + UNSET(GR_OSMOSDR_PC_LIBS) +ENDIF(CMAKE_CROSSCOMPILING) + +# fake gnuradio cpack behavior as long as we don't use it directly +set(CPACK_PACKAGE_NAME "gnuradio-osmosdr") +set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "GNU Radio block for various radio hardware") +set(CPACK_PACKAGE_VERSION ${VERSION}) + +CONFIGURE_FILE( + ${CMAKE_CURRENT_SOURCE_DIR}/gnuradio-osmosdr.pc.in + ${CMAKE_CURRENT_BINARY_DIR}/gnuradio-osmosdr.pc +@ONLY) + +INSTALL( + FILES ${CMAKE_CURRENT_BINARY_DIR}/gnuradio-osmosdr.pc + DESTINATION ${GR_LIBRARY_DIR}/pkgconfig +) + ######################################################################## # Print Summary ######################################################################## diff --git a/gnuradio-osmosdr.pc.in b/gnuradio-osmosdr.pc.in new file mode 100644 index 0000000000..5f1ae694e3 --- /dev/null +++ b/gnuradio-osmosdr.pc.in @@ -0,0 +1,15 @@ +prefix=@CMAKE_INSTALL_PREFIX@ +exec_prefix=${prefix} +libdir=${exec_prefix}/@GR_LIBRARY_DIR@ +includedir=${prefix}/@GR_INCLUDE_DIR@ + +Name: @CPACK_PACKAGE_NAME@ +Description: @CPACK_PACKAGE_DESCRIPTION_SUMMARY@ +URL: http://sdr.osmocom.org/trac/wiki/GrOsmoSDR +Version: @CPACK_PACKAGE_VERSION@ +Requires: gnuradio-runtime gnuradio-blocks +Requires.private: @GR_OSMOSDR_PC_REQUIRES@ +Conflicts: +Cflags: -I${includedir} @GR_OSMOSDR_PC_CFLAGS@ +Libs: -L${libdir} -lgnuradio-osmosdr +Libs.private: @GR_OSMOSDR_PC_LIBS@ -- 2.25.1

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[PATCH] [hackrf] Fix hackrf receive hangs by checking before each lock wait
by Adrian Chadd 09 Nov '20

09 Nov '20

Fix receive path hangs if another thread closes down the hackrf receive whilst this buffer receive function is waiting to be woken up. Now: * Sleep for up to 100ms each time waiting for the cond to be kicked; * Check whether streaming is still enabled each time rather than only when the function is entered. This fixes hangs where consumers like gqrx via gnuradio will do a stop_rx/start_rx very quickly to change something, and the buffer receive path is waiting for a buffer. --- lib/hackrf/hackrf_source_c.cc | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/lib/hackrf/hackrf_source_c.cc b/lib/hackrf/hackrf_source_c.cc index 662d04a..21656f9 100644 --- a/lib/hackrf/hackrf_source_c.cc +++ b/lib/hackrf/hackrf_source_c.cc @@ -30,6 +30,7 @@ #include <stdexcept> #include <iostream> +#include <chrono> #include <gnuradio/io_signature.h> @@ -203,8 +204,22 @@ int hackrf_source_c::work( int noutput_items, { std::unique_lock<std::mutex> lock(_buf_mutex); - while (_buf_used < 3 && running) // collect at least 3 buffers - _buf_cond.wait( lock ); + // XXX adrian - tomorrow, turn this loop into a wait_for (1 second) + // and re-check dev.get / running ! + // Otherwise this will hang reasonably reliably if we race where + // receive is stopped in one thread, and we've already passed + // the hackrf_is_streaming() check; we'll never finish this loop + // and consumers (eg gqrx) will fail. + + while (_buf_used < 3 && running) { // collect at least 3 buffers + _buf_cond.wait_for( lock , std::chrono::milliseconds(100)); + + // Re-check whether the device has closed or stopped streaming + if ( _dev.get() ) + running = (hackrf_is_streaming( _dev.get() ) == HACKRF_TRUE); + else + running = false; + } } if ( ! running ) -- 2.28.0

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osmocom-sdr November 2020