Android support

Author: rickmark

fx3_firmware/CMakeLists.txt

@@ -58,6 +58,9 @@ option(ENABLE_BLADERF_FIRMWARE
     "Build firmware for the bladeRF 1.0"
     ON
 )
+if(BLADERF_OS_ANDROID)
+    set(ENABLE_BLADERF_FIRMWARE OFF)
+endif()
 
 ################################################################################
 # Build Configuration

host/CMakeLists.txt

@@ -51,6 +51,14 @@ option(BUILD_DOCUMENTATION
         "Enable build and install of manpages and other documentation."
         OFF)
 
+option(BUILD_BLADERF_UTILITIES
+        "Build bladeRF utilities (e.g. bladeRF-cli)."
+        ON)
+
+if(BLADERF_OS_ANDROID)
+    set(BUILD_BLADERF_UTILITIES OFF)
+endif()
+
 option(TREAT_WARNINGS_AS_ERRORS
        "Treat compiler warnings as errors."
        ON)
@@ -86,7 +94,9 @@ option(BUILD_AD936X_DEBUG
        OFF)
  # We do this prior to the rest of host/common, as the compile options are
 # going to be different.
-add_subdirectory(common/thirdparty/ad936x)
+if(BUILD_AD936X)
+    add_subdirectory(common/thirdparty/ad936x)
+endif(BUILD_AD936X)
 
 ################################################################################
 # Compiler configuration
@@ -161,6 +171,9 @@ if(${CMAKE_SYSTEM_NAME} MATCHES "Linux" OR CYGWIN)
         endif()
     endif(NOT CMAKE_CROSSCOMPILING AND NOT CYGWIN)
 
+elseif(${CMAKE_SYSTEM_NAME} MATCHES "Android")
+    set(BLADERF_OS_ANDROID 1)
+
 elseif(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
     set(BLADERF_OS_FREEBSD 1)
 
@@ -211,7 +224,11 @@ endif()
 ################################################################################
 add_subdirectory(libraries)
 add_subdirectory(misc)
-add_subdirectory(utilities)
+
+if(BUILD_BLADERF_UTILITIES)
+    add_subdirectory(utilities)
+endif()
+
 add_subdirectory(common)
 
 ################################################################################

host/common/include/host_config.h.in

@@ -31,16 +31,42 @@
 #cmakedefine01  BLADERF_OS_FREEBSD
 #cmakedefine01  BLADERF_OS_OSX
 #cmakedefine01  BLADERF_OS_WINDOWS
+#cmakedefine01  BLADERF_OS_ANDROID
 #cmakedefine01  BLADERF_BIG_ENDIAN
 
-#if !(BLADERF_OS_LINUX || BLADERF_OS_OSX || BLADERF_OS_WINDOWS || BLADERF_OS_FREEBSD)
+
+#if !(BLADERF_OS_LINUX || BLADERF_OS_OSX || BLADERF_OS_WINDOWS || BLADERF_OS_FREEBSD || BLADERF_OS_ANDROID)
 #   error "Build not configured for any supported operating systems"
 #endif
 
 #if 1 < (BLADERF_OS_LINUX + BLADERF_OS_OSX + BLADERF_OS_WINDOWS + BLADERF_OS_FREEBSD)
 #error "Build configured for multiple operating systems"
 #endif
 
+#ifdef BLADERF_OS_ANDROID
+#include <unistd.h>
+#include <sys/types.h>
+#include <stdlib.h>
+#include <pwd.h>
+
+static inline struct passwd *bladerf_android_getpwuid_stub(uid_t uid)
+{
+    static struct passwd pwd;
+    static char fallback_dir[] = "/";
+    const char *home;
+
+    (void)uid;
+
+    home = getenv("HOME");
+    pwd.pw_dir = (char *)(home != NULL ? home : fallback_dir);
+
+    return &pwd;
+}
+
+#define getpwuid(uid) bladerf_android_getpwuid_stub(uid)
+
+#endif
+
 #cmakedefine01  HAVE_CLOCK_GETTIME
 
 /*******************************************************************************
@@ -61,7 +87,7 @@
 /*-----------------------
  * Linux
  *---------------------*/
-#if BLADERF_OS_LINUX
+#if BLADERF_OS_LINUX || BLADERF_OS_ANDROID
 #include <endian.h>
 
 #define HOST_TO_LE16(val) htole16(val)
@@ -153,6 +179,16 @@
 #error "Encountered an OS that we do not have endian wrappers for?"
 #endif
 
+#if BLADERF_OS_ANDROID
+#define usleep(usec) do {                                \
+    struct timespec ts;                                  \
+    ts.tv_sec = (usec) / 1000000;                        \
+    ts.tv_nsec = ((usec) % 1000000) * 1000;              \
+    nanosleep(&ts, NULL);                                \
+} while (0)
+#define pthread_cancel(val)     pthread_kill(val, SIGTERM)
+#endif
+
 /*******************************************************************************
  * Endianness conversions for constants
  *

host/libraries/CMakeLists.txt

@@ -3,6 +3,10 @@ add_subdirectory(libbladeRF)
 
 # Conditionally add the test directory
 option(TEST_LIBBLADERF "Enables libbladeRF test output" ON)
+if(BLADERF_OS_ANDROID)
+    set(TEST_LIBBLADERF OFF)
+endif()
+
 if(TEST_LIBBLADERF)
     message(STATUS "libbladeRF_test: enabled")
     add_subdirectory(libbladeRF_test)

host/libraries/libbladeRF/CMakeLists.txt

@@ -265,7 +265,7 @@ if(ENABLE_BACKEND_LIBUSB)
         else()
             message(WARNING "Not checking libbladeRF/libusb compatibility because LIBUSB_VERSION is not defined.")
         endif()
-        set(LIBBLADERF_INCLUDES ${LIBBLADERF_INCLUDES} ${LIBUSB_INCLUDE_DIRS})
+        set(LIBBLADERF_INCLUDES ${LIBBLADERF_INCLUDES} ${LIBUSB_INCLUDE_DIRS} "${LIBUSB_INCLUDE_DIR}")
     endif(NOT LIBUSB_FOUND)
 endif(ENABLE_BACKEND_LIBUSB)
 
@@ -290,7 +290,8 @@ if(BUILD_AD936X)
     set(LIBBLADERF_LIBS ${LIBBLADERF_LIBS} ad936x)
 endif(BUILD_AD936X)
 
-include_directories(${LIBBLADERF_INCLUDES})
+message(STATUS "libbladeRF includes: ${LIBBLADERF_INCLUDES}")
+include_directories(${LIBBLADERF_INCLUDES} )
 
 
 ################################################################################

host/libraries/libbladeRF/src/device_calibration.c

@@ -22,7 +22,11 @@
 
 #include <string.h>
 #include <stdio.h>
+#ifndef BLADERF_OS_ANDROID
 #include "common.h"
+#else
+#include <ad9361.h>
+#endif
 #include "libbladeRF.h"
 #include "board/board.h"
 #include "helpers/version.h"

host/libraries/libbladeRF/src/helpers/file.c

@@ -178,7 +178,7 @@ static size_t strip_last_path_entry(char *buf, char dir_delim)
     return len;
 }
 
-#if BLADERF_OS_LINUX || BLADERF_OS_OSX || BLADERF_OS_FREEBSD
+#if BLADERF_OS_LINUX || BLADERF_OS_OSX || BLADERF_OS_FREEBSD || BLADERF_OS_ANDROID
 #define ACCESS_FILE_EXISTS F_OK
 #define DIR_DELIMETER '/'
 
@@ -229,7 +229,7 @@ static inline size_t get_install_dir(char *buf, size_t max_len)
     return 0;
 }
 
-#if BLADERF_OS_LINUX
+#if BLADERF_OS_LINUX || BLADERF_OS_ANDROID
 static inline size_t get_binary_dir(char *buf, size_t max_len)
 {
     ssize_t result = readlink("/proc/self/exe", buf, max_len);