bladerf: add support for nuand LLC bladeRF (WIP)

This is based on the original work (https://github.com/Nuand/gr-osmosdr)
done by folks at nuand LLC for the gr3.6 branch of gr-osmosdr.

The following modifications have been done in this commit:

* port to gr-osmosdr master codebase (gr3.7)
* moved shared properties to bladerf_common
* added & verified IF filter bandwidth setters
* set LMS6002D registers with values taken from FAQ 5.27
* print device information (serial/versions) on startup
* added fpga= and fw= device arguments to program MCU/FPGA
* added bladerf=# dev. arg. to select a specific bladeRF
* grc gain field controls RF path VGA for RX/TX
* grc BB gain field controls BB path VGA for RX/TX

Usage example:

osmocom_fft -a "bladerf,fpga=/tmp/hostedx115.rbf"

The following RX named gain stages are available:

LNA: 0 to 6 dB, in 3dB steps
VGA1: 5 to 30 dB, in 1dB steps; nonlinear mapping done inside the lib
VGA2: 0 to 60 dB, in 3dB steps; not recommended to be used above 30dB

The following TX named gain stages are available:

VGA1: -35 to -4 dB, in 1dB steps, BB side
VGA2: 0 to 25 dB, in 1dB steps, RF side

Thanks a lot to the team of nuand LLC for this major contribution.

1 files changed, 40 insertions, 0 deletions

diff --git a/lib/bladerf/CMakeLists.txt b/lib/bladerf/CMakeLists.txt
new file mode 100644
index 0000000..23f7e3f
--- /dev/null
+++ b/lib/bladerf/CMakeLists.txt
@@ -0,0 +1,40 @@
+# Copyright 2013 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.
+
+########################################################################
+# This file included, use CMake directory variables
+########################################################################
+
+include_directories(
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    ${LIBBLADERF_INCLUDE_DIRS}
+)
+
+set(bladerf_srcs
+    ${CMAKE_CURRENT_SOURCE_DIR}/bladerf_source_c.cc
+    ${CMAKE_CURRENT_SOURCE_DIR}/bladerf_sink_c.cc
+    ${CMAKE_CURRENT_SOURCE_DIR}/bladerf_common.cc
+)
+
+########################################################################
+# Append gnuradio-osmosdr library sources
+########################################################################
+list(APPEND gr_osmosdr_srcs ${bladerf_srcs})
+list(APPEND gr_osmosdr_libs ${LIBBLADERF_LIBRARIES})
+