1 files changed, 105 insertions, 0 deletions
diff --git a/plat/mediatek/common/custom/oem_svc.c b/plat/mediatek/common/custom/oem_svc.c
new file mode 100644
index 00000000..08baed87
--- /dev/null
+++ b/plat/mediatek/common/custom/oem_svc.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#include <arch.h>
+#include <arch_helpers.h>
+#include <assert.h>
+#include <debug.h>
+#include <oem_svc.h>
+#include <platform.h>
+#include <runtime_svc.h>
+#include <stdint.h>
+#include <uuid.h>
+
+/* OEM Service UUID */
+DEFINE_SVC_UUID(oem_svc_uid,
+		0xb943add0, 0x069d, 0x11e4, 0x91, 0x91,
+		0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66);
+
+
+/* Setup OEM Services */
+static int32_t oem_svc_setup(void)
+{
+	/*
+	 * Invoke related module setup from here
+	 */
+
+	return 0;
+}
+
+/*******************************************************************************
+ * OEM top level handler for servicing SMCs.
+ ******************************************************************************/
+uint64_t oem_smc_handler(uint32_t smc_fid,
+			uint64_t x1,
+			uint64_t x2,
+			uint64_t x3,
+			uint64_t x4,
+			void *cookie,
+			void *handle,
+			uint64_t flags)
+{
+	uint64_t rc;
+
+	switch (smc_fid) {
+	default:
+		rc = SMC_UNK;
+		WARN("Unimplemented OEM Call: 0x%x\n", smc_fid);
+	}
+
+	SMC_RET1(handle, rc);
+}
+
+/*
+ * Top-level OEM Service SMC handler. This handler will in turn dispatch
+ * calls to related SMC handler
+ */
+uint64_t oem_svc_smc_handler(uint32_t smc_fid,
+			 uint64_t x1,
+			 uint64_t x2,
+			 uint64_t x3,
+			 uint64_t x4,
+			 void *cookie,
+			 void *handle,
+			 uint64_t flags)
+{
+	/*
+	 * Dispatch OEM calls to OEM Common handler and return its return value
+	 */
+	if (is_oem_fid(smc_fid)) {
+		return oem_smc_handler(smc_fid, x1, x2, x3, x4, cookie,
+					handle, flags);
+	}
+
+	switch (smc_fid) {
+	case OEM_SVC_CALL_COUNT:
+		/*
+		 * Return the number of OEM Service Calls.
+		 */
+		SMC_RET1(handle, OEM_SVC_NUM_CALLS);
+
+	case OEM_SVC_UID:
+		/* Return UID to the caller */
+		SMC_UUID_RET(handle, oem_svc_uid);
+
+	case OEM_SVC_VERSION:
+		/* Return the version of current implementation */
+		SMC_RET2(handle, OEM_VERSION_MAJOR, OEM_VERSION_MINOR);
+
+	default:
+		WARN("Unimplemented OEM Service Call: 0x%x\n", smc_fid);
+		SMC_RET1(handle, SMC_UNK);
+	}
+}
+
+/* Register OEM Service Calls as runtime service */
+DECLARE_RT_SVC(
+		oem_svc,
+		OEN_OEM_START,
+		OEN_OEM_END,
+		SMC_TYPE_FAST,
+		oem_svc_setup,
+		oem_svc_smc_handler
+);