mbedtls: Complete namespace for TF specific macros

This patch renames MBEDTLS_KEY_ALG to TF_MBEDTLS_KEY_ALG. This
completes the migration of TF specific macros so that they do not
have the MBEDTLS_ suffix (see arm-trusted-firmware#874).

Change-Id: Iad7632477e220b0af987c4db3cf52229fb127d00
Signed-off-by: David Cunado <david.cunado@arm.com>

diff --git a/drivers/auth/mbedtls/mbedtls_crypto.mk b/drivers/auth/mbedtls/mbedtls_crypto.mk
index 11df5ad36565c7d4d80a3d5d891f6ea5672bd255..cb81d4d6741cf1be452b303ae30fdb4a6fbf7afe 100644 (file)
--- a/drivers/auth/mbedtls/mbedtls_crypto.mk
+++ b/drivers/auth/mbedtls/mbedtls_crypto.mk
@@ -6,10 +6,20 @@
 
 include drivers/auth/mbedtls/mbedtls_common.mk
 
-# The platform may define the variable 'MBEDTLS_KEY_ALG' to select the key
+# The platform may define the variable 'TF_MBEDTLS_KEY_ALG' to select the key
 # algorithm to use. Default algorithm is RSA.
-ifeq (${MBEDTLS_KEY_ALG},)
-    MBEDTLS_KEY_ALG            :=      rsa
+ifeq (${TF_MBEDTLS_KEY_ALG},)
+    TF_MBEDTLS_KEY_ALG         :=      rsa
+endif
+
+# If MBEDTLS_KEY_ALG build flag is defined use it to set TF_MBEDTLS_KEY_ALG for
+# backward compatibility
+ifdef MBEDTLS_KEY_ALG
+    ifeq (${ERROR_DEPRECATED},1)
+        $(error "MBEDTLS_KEY_ALG is deprecated. Please use the new build flag TF_MBEDTLS_KEY_ALG")
+    endif
+    $(warning "MBEDTLS_KEY_ALG is deprecated. Please use the new build flag TF_MBEDTLS_KEY_ALG")
+    TF_MBEDTLS_KEY_ALG := ${MBEDTLS_KEY_ALG}
 endif
 
 MBEDTLS_CRYPTO_SOURCES         :=      drivers/auth/mbedtls/mbedtls_crypto.c   \
@@ -25,20 +35,20 @@ MBEDTLS_CRYPTO_SOURCES              :=      drivers/auth/mbedtls/mbedtls_crypto.c   \
                                        )
 
 # Key algorithm specific files
-ifeq (${MBEDTLS_KEY_ALG},ecdsa)
+ifeq (${TF_MBEDTLS_KEY_ALG},ecdsa)
     MBEDTLS_CRYPTO_SOURCES     +=      $(addprefix ${MBEDTLS_DIR}/library/,    \
                                        ecdsa.c                                 \
                                        ecp_curves.c                            \
                                        ecp.c                                   \
                                        )
     TF_MBEDTLS_KEY_ALG_ID      :=      TF_MBEDTLS_ECDSA
-else ifeq (${MBEDTLS_KEY_ALG},rsa)
+else ifeq (${TF_MBEDTLS_KEY_ALG},rsa)
     MBEDTLS_CRYPTO_SOURCES     +=      $(addprefix ${MBEDTLS_DIR}/library/,    \
                                        rsa.c                                   \
                                        )
     TF_MBEDTLS_KEY_ALG_ID      :=      TF_MBEDTLS_RSA
 else
-    $(error "MBEDTLS_KEY_ALG=${MBEDTLS_KEY_ALG} not supported on mbed TLS")
+    $(error "TF_MBEDTLS_KEY_ALG=${TF_MBEDTLS_KEY_ALG} not supported on mbed TLS")
 endif
 
 # Needs to be set to drive mbed TLS configuration correctly