drivers: tee: sandbox: add rpc test ta emulation
This adds support for RPC test trusted application emulation, which
permits to test reverse RPC calls to TEE supplicant. Currently it covers
requests to the I2C bus from TEE.
Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
diff --git a/include/tee/optee_ta_rpc_test.h b/include/tee/optee_ta_rpc_test.h
new file mode 100644
index 0000000..9491fba
--- /dev/null
+++ b/include/tee/optee_ta_rpc_test.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/* Copyright (c) 2020 Foundries Ltd */
+
+#ifndef __TA_RPC_TEST_H
+#define __TA_RPC_TEST_H
+
+#define TA_RPC_TEST_UUID { 0x48420575, 0x96ca, 0x401a, \
+ { 0x89, 0x91, 0x1e, 0xfd, 0xce, 0xbd, 0x7d, 0x04 } }
+
+/*
+ * Does a reverse RPC call for I2C read
+ *
+ * in params[0].value.a: bus number
+ * in params[0].value.b: chip address
+ * in params[0].value.c: control flags
+ * inout params[1].u.memref: buffer to read data
+ */
+#define TA_RPC_TEST_CMD_I2C_READ 0
+
+/*
+ * Does a reverse RPC call for I2C write
+ *
+ * in params[0].value.a: bus number
+ * in params[0].value.b: chip address
+ * in params[0].value.c: control flags
+ * inout params[1].u.memref: buffer with data to write
+ */
+#define TA_RPC_TEST_CMD_I2C_WRITE 1
+
+#endif /* __TA_RPC_TEST_H */