device/trezor: webusb transport added, cmake fixes

- webusb transport based on libusb added. Provides direct access to Trezor via USB, no need for Trezor bridge.
- trezor protocol message handler improved, no recursion used. Ready for upcoming integration tests.
- libusb (for docker) bumped from v1.0.9 to v1.0.22, newer version required for webusb transport, for device enumeration.
- cmake improvements and fixes. Cmake Trezor checks are moved to a dedicated CheckTrezor.cmake file. In case of a problem Trezor is excluded from build.
- ifdefs made consistent to Ledger.
- UDP Transport enumeration disabled by default in release mode

1 files changed, 140 insertions, 0 deletions

diff --git a/cmake/FindLibUSB.cmake b/cmake/FindLibUSB.cmake
new file mode 100644
index 000000000..7e3bf156e
--- /dev/null
+++ b/cmake/FindLibUSB.cmake
@@ -0,0 +1,140 @@
+# - Find libusb for portable USB support
+# This module will find libusb as published by
+#  http://libusb.sf.net and
+#  http://libusb-win32.sf.net
+#
+# It will use PkgConfig if present and supported, else search
+# it on its own. If the LibUSB_ROOT_DIR environment variable
+# is defined, it will be used as base path.
+# The following standard variables get defined:
+#  LibUSB_FOUND:        true if LibUSB was found
+#  LibUSB_HEADER_FILE:  the location of the C header file
+#  LibUSB_INCLUDE_DIRS: the directory that contains the include file
+#  LibUSB_LIBRARIES:    the library
+# source: https://github.com/IntelRealSense/librealsense
+
+include ( CheckLibraryExists )
+include ( CheckIncludeFile )
+
+find_package ( PkgConfig )
+if ( PKG_CONFIG_FOUND )
+    pkg_check_modules ( PKGCONFIG_LIBUSB libusb-1.0 )
+    if ( NOT PKGCONFIG_LIBUSB_FOUND )
+        pkg_check_modules ( PKGCONFIG_LIBUSB libusb )
+    endif ( NOT PKGCONFIG_LIBUSB_FOUND )
+endif ( PKG_CONFIG_FOUND )
+
+if ( PKGCONFIG_LIBUSB_FOUND )
+    set ( LibUSB_INCLUDE_DIRS ${PKGCONFIG_LIBUSB_INCLUDE_DIRS} )
+    foreach ( i ${PKGCONFIG_LIBUSB_LIBRARIES} )
+        string ( REGEX MATCH "[^-]*" ibase "${i}" )
+        find_library ( ${ibase}_LIBRARY
+                NAMES ${i}
+                PATHS ${PKGCONFIG_LIBUSB_LIBRARY_DIRS}
+                )
+        if ( ${ibase}_LIBRARY )
+            list ( APPEND LibUSB_LIBRARIES ${${ibase}_LIBRARY} )
+        endif ( ${ibase}_LIBRARY )
+        mark_as_advanced ( ${ibase}_LIBRARY )
+    endforeach ( i )
+
+else ( PKGCONFIG_LIBUSB_FOUND )
+    find_file ( LibUSB_HEADER_FILE
+            NAMES
+            libusb.h usb.h
+            PATHS
+            $ENV{ProgramFiles}/LibUSB-Win32
+            $ENV{LibUSB_ROOT_DIR}
+            PATH_SUFFIXES
+            include
+            libusb-1.0
+            include/libusb-1.0
+            )
+    mark_as_advanced ( LibUSB_HEADER_FILE )
+    get_filename_component ( LibUSB_INCLUDE_DIRS "${LibUSB_HEADER_FILE}" PATH )
+
+    if ( ${CMAKE_SYSTEM_NAME} STREQUAL "Windows" )
+        # LibUSB-Win32 binary distribution contains several libs.
+        # Use the lib that got compiled with the same compiler.
+        if ( MSVC )
+            if ( WIN32 )
+                set ( LibUSB_LIBRARY_PATH_SUFFIX lib/msvc )
+            else ( WIN32 )
+                set ( LibUSB_LIBRARY_PATH_SUFFIX lib/msvc_x64 )
+            endif ( WIN32 )
+        elseif ( BORLAND )
+            set ( LibUSB_LIBRARY_PATH_SUFFIX lib/bcc )
+        elseif ( CMAKE_COMPILER_IS_GNUCC )
+            set ( LibUSB_LIBRARY_PATH_SUFFIX lib/gcc )
+        endif ( MSVC )
+    endif ( ${CMAKE_SYSTEM_NAME} STREQUAL "Windows" )
+
+    find_library ( usb_LIBRARY
+            NAMES
+            usb-1.0 libusb usb
+            PATHS
+            $ENV{ProgramFiles}/LibUSB-Win32
+            $ENV{LibUSB_ROOT_DIR}
+            PATH_SUFFIXES
+            ${LibUSB_LIBRARY_PATH_SUFFIX}
+            )
+    mark_as_advanced ( usb_LIBRARY )
+    if ( usb_LIBRARY )
+        set ( LibUSB_LIBRARIES ${usb_LIBRARY} )
+    endif ( usb_LIBRARY )
+
+endif ( PKGCONFIG_LIBUSB_FOUND )
+
+if ( LibUSB_INCLUDE_DIRS AND LibUSB_LIBRARIES )
+    set ( LibUSB_FOUND true )
+endif ( LibUSB_INCLUDE_DIRS AND LibUSB_LIBRARIES )
+
+if ( LibUSB_FOUND )
+    set ( CMAKE_REQUIRED_INCLUDES "${LibUSB_INCLUDE_DIRS}" )
+    check_include_file ( "${LibUSB_HEADER_FILE}" LibUSB_FOUND )
+endif ( LibUSB_FOUND )
+
+if ( LibUSB_FOUND )
+    check_library_exists ( "${LibUSB_LIBRARIES}" usb_open "" LibUSB_FOUND )
+    check_library_exists ( "${LibUSB_LIBRARIES}" libusb_get_device_list "" LibUSB_VERSION_1.0 )
+    check_library_exists ( "${LibUSB_LIBRARIES}" libusb_get_port_numbers "" LibUSB_VERSION_1.0.16 )
+
+    # Library 1.0.16+ compilation test.
+    # The check_library_exists does not work well on Apple with shared libs.
+    if (APPLE OR LibUSB_VERSION_1.0.16)
+        if (APPLE)
+            if(DEPENDS)
+                list(APPEND TEST_COMPILE_EXTRA_LIBRARIES "-framework Foundation -framework IOKit")
+            else()
+                find_library(COREFOUNDATION CoreFoundation)
+                find_library(IOKIT IOKit)
+                list(APPEND TEST_COMPILE_EXTRA_LIBRARIES ${IOKIT})
+                list(APPEND TEST_COMPILE_EXTRA_LIBRARIES ${COREFOUNDATION})
+            endif()
+        endif()
+        if (WIN32)
+            list(APPEND TEST_COMPILE_EXTRA_LIBRARIES setupapi)
+        endif()
+        list(APPEND TEST_COMPILE_EXTRA_LIBRARIES ${LibUSB_LIBRARIES})
+
+        try_compile(LibUSB_COMPILE_TEST_PASSED
+                ${CMAKE_BINARY_DIR}
+                "${CMAKE_SOURCE_DIR}/cmake/test-libusb-version.c"
+                CMAKE_FLAGS
+                    "-DINCLUDE_DIRECTORIES=${LibUSB_INCLUDE_DIRS}"
+                    "-DLINK_DIRECTORIES=${LibUSB_LIBRARIES}"
+                LINK_LIBRARIES ${TEST_COMPILE_EXTRA_LIBRARIES}
+                OUTPUT_VARIABLE OUTPUT)
+        unset(TEST_COMPILE_EXTRA_LIBRARIES)
+        message(STATUS "LibUSB Compilation test: ${LibUSB_COMPILE_TEST_PASSED}")
+    endif()
+endif ( LibUSB_FOUND )
+
+if ( NOT LibUSB_FOUND )
+    if ( NOT LibUSB_FIND_QUIETLY )
+        message ( STATUS "LibUSB not found, try setting LibUSB_ROOT_DIR environment variable." )
+    endif ( NOT LibUSB_FIND_QUIETLY )
+    if ( LibUSB_FIND_REQUIRED )
+        message ( FATAL_ERROR "" )
+    endif ( LibUSB_FIND_REQUIRED )
+endif ( NOT LibUSB_FOUND )