include/trustzone/kree/system.h

   1 /*
   2  * Header files for basic KREE functions.
   3  */
   4
   5 #ifndef __KREE_H__
   6 #define __KREE_H__
   7
   8 #ifdef CONFIG_MTK_IN_HOUSE_TEE_SUPPORT
   9
  10 #include "trustzone/tz_cross/trustzone.h"
  11
  12 /// KREE session handle type.
  13 typedef void* KREE_SESSION_HANDLE;
  14
  15 typedef uint32_t KREE_SHAREDMEM_HANDLE;
  16
  17
  18 /* Session Management */
  19 /**
  20  *  Create a new TEE sesssion
  21  *
  22  * @param ta_uuid UUID of the TA to connect to.
  23  * @param pHandle Handle for the new session. Return KREE_SESSION_HANDLE_FAIL if fail.
  24  * @return return code
  25  */
  26 TZ_RESULT KREE_CreateSession(const char *ta_uuid, KREE_SESSION_HANDLE *pHandle);
  27
  28 /**
  29  * Close TEE session
  30  *
  31  * @param handle Handle for session to close.
  32  * @return return code
  33  */
  34 TZ_RESULT KREE_CloseSession(KREE_SESSION_HANDLE handle);
  35
  36
  37 /**
  38  * Make a TEE service call
  39  *
  40  * @param handle      Session handle to make the call
  41  * @param command     The command to call.
  42  * @param paramTypes  Types for the parameters, use TZ_ParamTypes() to consturct.
  43  * @param param       The parameters to pass to TEE. Maximum 4 params.
  44  * @return            Return value from TEE service.
  45  */
  46 TZ_RESULT KREE_TeeServiceCall(KREE_SESSION_HANDLE handle, uint32_t command,
  47                               uint32_t paramTypes, MTEEC_PARAM param[4]);
  48
  49 #endif /* CONFIG_MTK_IN_HOUSE_TEE_SUPPORT */
  50 #endif /* __KREE_H__ */