Move sw_crypto and stub_keystore under src/drivers

This is more logical place for the "backend" implementation than
directly under platform.

This also allows making other implementations as "real" drivers, as well as proper configuration via Kconfigs

Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>

Kconfig

@@ -114,14 +114,9 @@ config BOARD_ETHERNET
         flag to indicate that ethernet is enabled
 
 config BOARD_CRYPTO
-    string "Crypto"
+    bool "Crypto support"
     help
-        Crypto implementation selection
+        Enable PX4 Crypto Support. Select the implementation under drivers
-
-config BOARD_KEYSTORE
-    string "Keystore"
-    help
-        Keystore implememntation selection
 
 menu "Serial ports"
 

platforms/common/CMakeLists.txt

@@ -61,4 +61,3 @@ endif()
 
 add_subdirectory(px4_work_queue)
 add_subdirectory(work_queue)
-add_subdirectory(px4_sw_crypto)

platforms/common/px4_sw_crypto/CMakeLists.txt

@@ -1,44 +0,0 @@
-############################################################################
-#
-#   Copyright (c) 2021 Technology Innoavation Institute. All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name PX4 nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
-if (DEFINED PX4_CRYPTO)
-	if (IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${PX4_CRYPTO})
-		add_subdirectory(${PX4_CRYPTO})
-	endif()
-endif()
-
-if (DEFINED PX4_KEYSTORE)
-	if (IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${PX4_KEYSTORE})
-		add_subdirectory(${PX4_KEYSTORE})
-	endif()
-endif()

src/drivers/stub_keystore/Kconfig

@@ -0,0 +1,6 @@
+menuconfig DRIVERS_STUB_KEYSTORE
+	bool "stub_keystore"
+	depends on DRIVERS_SW_CRYPTO
+	default n
+	---help---
+		Enable support for stub_keystore

src/drivers/sw_crypto/Kconfig

@@ -0,0 +1,6 @@
+menuconfig DRIVERS_SW_CRYPTO
+	bool "sw_crypto"
+	depends on BOARD_CRYPTO
+	default n
+	---help---
+		Enable support for sw_crypto