69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2016 MediaTek Inc.
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*/
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/*
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* Header files for basic KREE functions.
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*/
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#ifndef __KREE_H__
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#define __KREE_H__
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#if defined(CONFIG_MTK_IN_HOUSE_TEE_SUPPORT) || defined(CONFIG_TRUSTY)
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#include "trustzone/tz_cross/trustzone.h"
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/* / KREE session handle type. */
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typedef uint32_t KREE_SESSION_HANDLE;
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typedef uint32_t KREE_SHAREDMEM_HANDLE;
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/* Session Management */
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/**
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* Create a new TEE sesssion
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*
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* @param ta_uuid UUID of the TA to connect to.
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* @param pHandle Handle for the new session.
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* Return KREE_SESSION_HANDLE_FAIL if fail.
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* @return return code
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*/
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int KREE_CreateSession(const char *ta_uuid, KREE_SESSION_HANDLE *pHandle);
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/**
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* Create a new TEE sesssion with tag for debug purpose
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*
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* @param ta_uuid UUID of the TA to connect to.
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* @param pHandle Handle for the new session.
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* Return KREE_SESSION_HANDLE_FAIL if fail.
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* @param tag string can be printed when querying memory usage.
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* @return return code
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*/
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int KREE_CreateSessionWithTag(const char *ta_uuid,
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KREE_SESSION_HANDLE *pHandle, const char *tag);
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/**
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* Close TEE session
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*
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* @param handle Handle for session to close.
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* @return return code
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*/
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int KREE_CloseSession(KREE_SESSION_HANDLE handle);
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/**
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* Make a TEE service call
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*
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* @param handle Session handle to make the call
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* @param command The command to call.
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* @param paramTypes Types for the parameters, construct by TZ_ParamTypes().
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* @param param The parameters to pass to TEE. Maximum 4 params.
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* @return Return value from TEE service.
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*/
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int KREE_TeeServiceCall(KREE_SESSION_HANDLE handle, uint32_t command,
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uint32_t paramTypes, union MTEEC_PARAM param[4]);
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#endif /* CONFIG_MTK_IN_HOUSE_TEE_SUPPORT || CONFIG_TRUSTY */
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#endif /* __KREE_H__ */
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