package/optee-client: add support for custom tarball

OP-TEE OS supports custom tarballs. If the OP-TEE OS custom tarball
version does not match the latest optee-client version supported by
Buildroot, optee-client might not build or run properly. This patch
adds support for an optee-client custom tarball URL to address this
potential issue.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/optee-client/Config.in

@@ -17,6 +17,44 @@ config BR2_PACKAGE_OPTEE_CLIENT
 
 if BR2_PACKAGE_OPTEE_CLIENT
 
+choice
+	prompt "optee-client version"
+	default BR2_PACKAGE_OPTEE_CLIENT_LATEST
+	help
+	  Select the version of optee-client you want to use
+
+config BR2_PACKAGE_OPTEE_CLIENT_LATEST
+	bool "4.3.0"
+	help
+	  Use the latest release tag from the optee-client official Git
+	  repository.
+
+config BR2_PACKAGE_OPTEE_CLIENT_CUSTOM_TARBALL
+	bool "Custom tarball"
+	help
+	  This option allows to specify a URL pointing to an
+	  optee-client source tarball. This URL can use any protocol
+	  recognized by Buildroot, like http://, ftp://, file://
+	  or scp://.
+
+	  When pointing to a local tarball using file://, you may want
+	  to use a make variable like $(TOPDIR) to reference the root of
+	  the Buildroot tree.
+
+endchoice
+
+if BR2_PACKAGE_OPTEE_CLIENT_CUSTOM_TARBALL
+
+config BR2_PACKAGE_OPTEE_CLIENT_CUSTOM_TARBALL_LOCATION
+	string "URL of custom optee-client tarball"
+
+endif
+
+config BR2_PACKAGE_OPTEE_CLIENT_VERSION
+	string
+	default "4.3.0"		if BR2_PACKAGE_OPTEE_CLIENT_LATEST
+	default "custom"	if BR2_PACKAGE_OPTEE_CLIENT_CUSTOM_TARBALL
+
 config BR2_PACKAGE_OPTEE_CLIENT_TEE_FS_PATH
 	string "Path for normal world OS secure storage"
 	default "/data/tee"

package/optee-client/optee-client.mk

@@ -4,12 +4,23 @@
 #
 ################################################################################
 
-OPTEE_CLIENT_VERSION = 4.3.0
+OPTEE_CLIENT_VERSION = $(call qstrip,$(BR2_PACKAGE_OPTEE_CLIENT_VERSION))
-OPTEE_CLIENT_SITE = $(call github,OP-TEE,optee_client,$(OPTEE_CLIENT_VERSION))
 OPTEE_CLIENT_LICENSE = BSD-2-Clause
 OPTEE_CLIENT_LICENSE_FILES = LICENSE
 OPTEE_CLIENT_INSTALL_STAGING = YES
 
+ifeq ($(BR2_PACKAGE_OPTEE_CLIENT_CUSTOM_TARBALL),y)
+OPTEE_CLIENT_TARBALL = $(call qstrip,$(BR2_PACKAGE_OPTEE_CLIENT_CUSTOM_TARBALL_LOCATION))
+OPTEE_CLIENT_SITE = $(patsubst %/,%,$(dir $(OPTEE_CLIENT_TARBALL)))
+OPTEE_CLIENT_SOURCE = $(notdir $(OPTEE_CLIENT_TARBALL))
+else
+OPTEE_CLIENT_SITE = $(call github,OP-TEE,optee_client,$(OPTEE_CLIENT_VERSION))
+endif
+
+ifeq ($(BR2_PACKAGE_OPTEE_CLIENT):$(BR2_PACKAGE_OPTEE_CLIENT_LATEST),y:)
+BR_NO_CHECK_HASH_FOR += $(OPTEE_CLIENT_SOURCE)
+endif
+
 OPTEE_CLIENT_CONF_OPTS = \
 	-DCFG_TEE_FS_PARENT_PATH=$(BR2_PACKAGE_OPTEE_CLIENT_TEE_FS_PATH) \
 	-DCFG_WERROR=OFF
@@ -38,4 +49,10 @@ define OPTEE_CLIENT_INSTALL_INIT_SYSV
 		$(TARGET_DIR)/etc/init.d/S30tee-supplicant
 endef
 
+ifeq ($(BR2_PACKAGE_OPTEE_CLIENT_CUSTOM_TARBALL)$(BR_BUILDING),yy)
+ifeq ($(call qstrip,$(BR2_PACKAGE_OPTEE_CLIENT_CUSTOM_TARBALL_LOCATION)),)
+$(error No tarball location specified. Please check BR2_PACKAGE_OPTEE_CLIENT_CUSTOM_TARBALL_LOCATION)
+endif
+endif
+
 $(eval $(cmake-package))