Remove unnecessary HID functionality (#243)

* Include HID report functionality only when the HID feature is enabled
* Define HID_CONTROLS=1 so HID unit tests work correctly

CHANGELOG.rst

@@ -1,6 +1,11 @@
 lib_xua Change Log
 ==================
 
+UNRELEASED
+----------
+
+  * CHANGED:   Exclude HID Report functions unless the HID feature is enabled
+
 3.1.0
 -----
 

lib_xua/src/hid/hid_report.c

@@ -1,5 +1,7 @@
 // Copyright 2021-2022 XMOS LIMITED.
 // This Software is subject to the terms of the XMOS Public Licence: Version 1.
+#if( 0 < HID_CONTROLS )
+
 #include <assert.h>
 #include <stddef.h>
 #include <stdio.h>
@@ -851,3 +853,5 @@ unsigned hidReportValidate( void )
         return hidReportValidateInfoStruct( &info );
     }
 }
+
+#endif // ( 0 < HID_CONTROLS )

tests/xua_unit_tests/CMakeLists.txt

@@ -49,6 +49,7 @@ foreach( testsourcefile ${APP_SOURCES} )
             "-fxscope"
             "-target=XCORE-AI-EXPLORER"
             "${CMAKE_CURRENT_SOURCE_DIR}/config.xscope"
+            "-DHID_CONTROLS=1"
             "-DUNITY_SUPPORT_64"
             "-DUNITY_INCLUDE_DOUBLE"
             )

tests/xua_unit_tests/wscript

@@ -230,6 +230,7 @@ def build(bld):
         makefile_opts['XCC_FLAGS'] = ['-O2',
                                       '-g',
                                       '-Wall',
+                                      '-DHID_CONTROLS=1',
                                       '-DUNITY_SUPPORT_64',
                                       '-DUNITY_INCLUDE_DOUBLE',
                                       '-DXUD_CORE_CLOCK=600',