/*
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* Copyright (c) 2014, STMicroelectronics International N.V.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License Version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _TEE_IOC_H
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#define _TEE_IOC_H
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#include <linux/tee_client_api.h>
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#ifndef __KERNEL__
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#define __user
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#endif
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/**
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* struct tee_cmd_io - The command sent to an open tee device.
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* @err: Error code (as in Global Platform TEE Client API spec)
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* @origin: Origin for the error code (also from spec).
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* @cmd: The command to be executed in the trusted application.
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* @uuid: The uuid for the trusted application.
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* @data: The trusted application or memory block.
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* @data_size: The size of the trusted application or memory block.
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* @op: The cmd payload operation for the trusted application.
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*
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* This structure is mainly used in the Linux kernel for communication
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* with the user space.
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*/
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struct tee_cmd_io {
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TEEC_Result err;
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uint32_t origin;
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uint32_t cmd;
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int fd_sess;
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/*
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* Here fd_sess is 32-bit variable. Since TEEC_Result also is defined as
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* "uint32_t", this structure is aligned.
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*/
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union {
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TEEC_UUID __user *uuid;
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uint64_t padding_uuid;
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};
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union {
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void __user *data;
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uint64_t padding_data;
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};
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union {
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TEEC_Operation __user *op;
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uint64_t padding_op;
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};
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uint32_t data_size;
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int32_t reserved;
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};
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struct tee_shm_io {
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union {
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void __user *buffer;
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uint64_t padding_buf;
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};
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uint32_t size;
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uint32_t flags;
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/*
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* Here fd_shm is 32-bit. To be compliant with the convention of file
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* descriptor definition, fd_shm is defined as "int" type other
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* than "int32_t". Even though using "int32_t" is more obvious to
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* indicate that we intend to keep this structure aligned.
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*/
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int fd_shm;
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uint32_t registered;
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};
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#define TEE_OPEN_SESSION_IOC _IOWR('t', 161, struct tee_cmd_io)
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#define TEE_INVOKE_COMMAND_IOC _IOWR('t', 163, struct tee_cmd_io)
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#define TEE_REQUEST_CANCELLATION_IOC _IOWR('t', 164, struct tee_cmd_io)
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#define TEE_ALLOC_SHM_IOC _IOWR('t', 165, struct tee_shm_io)
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#define TEE_GET_FD_FOR_RPC_SHM_IOC _IOWR('t', 167, struct tee_shm_io)
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#endif /* _TEE_IOC_H */
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