Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 106 insertions, 0 deletions

diff --git a/drivers/tee/optee/optee_rpc_cmd.h b/drivers/tee/optee/optee_rpc_cmd.h
new file mode 100644
index 000000000..f3f06e099
--- /dev/null
+++ b/drivers/tee/optee/optee_rpc_cmd.h
@@ -0,0 +1,106 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (c) 2016-2021, Linaro Limited
+ */
+
+#ifndef __OPTEE_RPC_CMD_H
+#define __OPTEE_RPC_CMD_H
+
+/*
+ * All RPC is done with a struct optee_msg_arg as bearer of information,
+ * struct optee_msg_arg::arg holds values defined by OPTEE_RPC_CMD_* below.
+ * Only the commands handled by the kernel driver are defined here.
+ *
+ * RPC communication with tee-supplicant is reversed compared to normal
+ * client communication described above. The supplicant receives requests
+ * and sends responses.
+ */
+
+/*
+ * Get time
+ *
+ * Returns number of seconds and nano seconds since the Epoch,
+ * 1970-01-01 00:00:00 +0000 (UTC).
+ *
+ * [out]    value[0].a	    Number of seconds
+ * [out]    value[0].b	    Number of nano seconds.
+ */
+#define OPTEE_RPC_CMD_GET_TIME		3
+
+/*
+ * Notification from/to secure world.
+ *
+ * If secure world needs to wait for something, for instance a mutex, it
+ * does a notification wait request instead of spinning in secure world.
+ * Conversely can a synchronous notification can be sent when a secure
+ * world mutex with a thread waiting thread is unlocked.
+ *
+ * This interface can also be used to wait for a asynchronous notification
+ * which instead is sent via a non-secure interrupt.
+ *
+ * Waiting on notification
+ * [in]    value[0].a	    OPTEE_RPC_NOTIFICATION_WAIT
+ * [in]    value[0].b	    notification value
+ *
+ * Sending a synchronous notification
+ * [in]    value[0].a	    OPTEE_RPC_NOTIFICATION_SEND
+ * [in]    value[0].b	    notification value
+ */
+#define OPTEE_RPC_CMD_NOTIFICATION	4
+#define OPTEE_RPC_NOTIFICATION_WAIT	0
+#define OPTEE_RPC_NOTIFICATION_SEND	1
+
+/*
+ * Suspend execution
+ *
+ * [in]    value[0].a	Number of milliseconds to suspend
+ */
+#define OPTEE_RPC_CMD_SUSPEND		5
+
+/*
+ * Allocate a piece of shared memory
+ *
+ * [in]    value[0].a	    Type of memory one of
+ *			    OPTEE_RPC_SHM_TYPE_* below
+ * [in]    value[0].b	    Requested size
+ * [in]    value[0].c	    Required alignment
+ * [out]   memref[0]	    Buffer
+ */
+#define OPTEE_RPC_CMD_SHM_ALLOC		6
+/* Memory that can be shared with a non-secure user space application */
+#define OPTEE_RPC_SHM_TYPE_APPL		0
+/* Memory only shared with non-secure kernel */
+#define OPTEE_RPC_SHM_TYPE_KERNEL	1
+
+/*
+ * Free shared memory previously allocated with OPTEE_RPC_CMD_SHM_ALLOC
+ *
+ * [in]     value[0].a	    Type of memory one of
+ *			    OPTEE_RPC_SHM_TYPE_* above
+ * [in]     value[0].b	    Value of shared memory reference or cookie
+ */
+#define OPTEE_RPC_CMD_SHM_FREE		7
+
+/*
+ * Issue master requests (read and write operations) to an I2C chip.
+ *
+ * [in]     value[0].a	    Transfer mode (OPTEE_RPC_I2C_TRANSFER_*)
+ * [in]     value[0].b	    The I2C bus (a.k.a adapter).
+ *				16 bit field.
+ * [in]     value[0].c	    The I2C chip (a.k.a address).
+ *				16 bit field (either 7 or 10 bit effective).
+ * [in]     value[1].a	    The I2C master control flags (ie, 10 bit address).
+ *				16 bit field.
+ * [in/out] memref[2]	    Buffer used for data transfers.
+ * [out]    value[3].a	    Number of bytes transferred by the REE.
+ */
+#define OPTEE_RPC_CMD_I2C_TRANSFER	21
+
+/* I2C master transfer modes */
+#define OPTEE_RPC_I2C_TRANSFER_RD	0
+#define OPTEE_RPC_I2C_TRANSFER_WR	1
+
+/* I2C master control flags */
+#define OPTEE_RPC_I2C_FLAGS_TEN_BIT	BIT(0)
+
+#endif /*__OPTEE_RPC_CMD_H*/