From fb161a09c6c403e276b7d774f3c0f21d453b7b18 Mon Sep 17 00:00:00 2001
From: f4exb <f4exb06@gmail.com>
Date: Mon, 10 Apr 2017 23:57:15 +0200
Subject: [PATCH] LimeSDR support (1)

---
 Readme.md                            | 15 ++++++++++
 cmake/Modules/FindLimeSuite.cmake    | 19 +++++++++++++
 devices/limesdr/CMakeLists.txt       | 41 +++++++++++++++++++++++++++
 devices/limesdr/devicelimesdrparam.h | 42 ++++++++++++++++++++++++++++
 4 files changed, 117 insertions(+)
 create mode 100644 cmake/Modules/FindLimeSuite.cmake
 create mode 100644 devices/limesdr/CMakeLists.txt
 create mode 100644 devices/limesdr/devicelimesdrparam.h

diff --git a/Readme.md b/Readme.md
index e5b356c04..cb2e47167 100644
--- a/Readme.md
+++ b/Readme.md
@@ -76,6 +76,21 @@ If you use your own location for libhackrf install directory you need to specify
 
 HackRF is better used with a sampling rate of 4.8 MS/s and above. The 2.4 and 3.2 MS/s rates are considered experimental and are way out of specs of the ADC. You may or may not achieve acceptable results depending on the unit. A too low sampling rate will typically create ghost signals (images) and/or raise the noise floor.
 
+<h2>LimeSDR</h2>
+
+&#9888; This is a wotk in progress
+
+You will need a minimal installation of LimeSuite:
+
+  - `sudo apt-get install libsqlite3-dev`
+  - `git clone https://github.com/myriadrf/LimeSuite.git`
+  - `cd LimeSuite`
+  - `mkdir builddir`
+  - `cd builddir`
+  - `cmake -DCMAKE_INSTALL_PREFIX=/opt/install/LimeSuite`
+  - `make -j8`
+  - `make install`
+
 <h2>RTL-SDR</h2>
 
 RTL-SDR based dongles are supported through the librtlsdr library that should be installed in your system for proper build of the software and operation support. Add `librtlsdr-dev` to the list of dependencies to install.
diff --git a/cmake/Modules/FindLimeSuite.cmake b/cmake/Modules/FindLimeSuite.cmake
new file mode 100644
index 000000000..ac358aad4
--- /dev/null
+++ b/cmake/Modules/FindLimeSuite.cmake
@@ -0,0 +1,19 @@
+# Find Lime Suite
+
+FIND_PATH(LIMESUITE_INCLUDE_DIR lime/LimeSuite.h)
+
+IF (LIMESUITE_INCLUDE_DIR AND LIMESUITE_LIBRARY)
+    SET(LIMESUITE_FOUND TRUE)
+ENDIF (LIMESUITE_INCLUDE_DIR AND LIMESUITE_LIBRARY)
+
+IF (LIMESUITE_FOUND)
+    IF (NOT LimeSuite_FIND_QUIETLY)
+        MESSAGE (STATUS "Found Lime Suite: ${LIMESUITE_INCLUDE_DIR}, ${LIMESUITE_LIBRARY}")
+    ENDIF (NOT LimeSuite_FIND_QUIETLY)
+ELSE (LIMESUITE_FOUND)
+    IF (LimeSuite_FIND_REQUIRED)
+        MESSAGE (FATAL_ERROR "Could not find Lime Suite")
+    ENDIF (LimeSuite_FIND_REQUIRED)
+ENDIF (LIMESUITE_FOUND)
+
+mark_as_advanced(LIMESUITE_INCLUDE_DIR LIMESUITE_LIBRARY)
diff --git a/devices/limesdr/CMakeLists.txt b/devices/limesdr/CMakeLists.txt
new file mode 100644
index 000000000..cbcde3cb5
--- /dev/null
+++ b/devices/limesdr/CMakeLists.txt
@@ -0,0 +1,41 @@
+project(limesdrdevice)
+
+set(limesdrdevice_SOURCES
+)
+
+set(limesdrdevice_HEADERS
+    devicelimesdrparam.h
+)
+
+if (BUILD_DEBIAN)
+include_directories(
+    .
+    ${CMAKE_CURRENT_BINARY_DIR}
+    ${LIMESUITESRC}/include
+    ${LIMESUITESRC}/src
+)
+else (BUILD_DEBIAN)
+include_directories(
+    .
+    ${CMAKE_CURRENT_BINARY_DIR}
+    ${LIMESUITE_INCLUDE_DIR}
+)
+endif (BUILD_DEBIAN)
+
+add_library(limesdrdevice SHARED
+    ${limesdrdevice_SOURCES}
+)
+
+if (BUILD_DEBIAN)
+target_link_libraries(limesdrdevice
+    limesuite
+    sdrbase
+)
+else (BUILD_DEBIAN)
+target_link_libraries(limesdrdevice
+    ${LIMESUITE_LIBRARY}
+    sdrbase
+)
+endif (BUILD_DEBIAN)
+
+install(TARGETS limesdrdevice DESTINATION lib)
diff --git a/devices/limesdr/devicelimesdrparam.h b/devices/limesdr/devicelimesdrparam.h
new file mode 100644
index 000000000..ceff0522d
--- /dev/null
+++ b/devices/limesdr/devicelimesdrparam.h
@@ -0,0 +1,42 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2017 Edouard Griffiths, F4EXB                                   //
+//                                                                               //
+// 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 as version 3 of the License, or                  //
+//                                                                               //
+// 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 V3 for more details.                               //
+//                                                                               //
+// You should have received a copy of the GNU General Public License             //
+// along with this program. If not, see <http://www.gnu.org/licenses/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#ifndef DEVICES_LIMESDR_DEVICELIMESDRPARAM_H_
+#define DEVICES_LIMESDR_DEVICELIMESDRPARAM_H_
+
+#include "lime/LimeSuite.h"
+
+/**
+ * This structure is owned by each of the parties sharing the same physical device
+ * It allows exchange of information on the common resources
+ */
+struct DeviceLimeSDRParams
+{
+    lms_device_t *m_dev;         //!< device handle if the party has ownership else 0
+    lms_range_t  m_lpfRangeRx;   //!< Low pass filter range information (Rx side)
+    lms_range_t  m_lpfRangeTx;   //!< Low pass filter range information (Tx side)
+    lms_range_t  m_loRangeRx[2]; //!< LO range for Rx
+    lms_range_t  m_loRangeTx[2]; //!< LO range for Tx
+    lms_range_t  m_srRangeRx[2]; //!< ADC sample rate range
+    lms_range_t  m_srRangeTx[2]; //!< DAC sample rate range
+
+    DeviceLimeSDRParams() :
+        m_dev(0)
+    {
+    }
+};
+
+#endif /* DEVICES_LIMESDR_DEVICELIMESDRPARAM_H_ */