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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) Microsoft Corporation
*/
#ifndef __TPM_FTPM_TEE_H__
#define __TPM_FTPM_TEE_H__
#include <linux/tee_drv.h>
#include <linux/tpm.h>
#include <linux/uuid.h>
/* The TAFs ID implemented in this TA */
#define FTPM_OPTEE_TA_SUBMIT_COMMAND (0)
#define FTPM_OPTEE_TA_EMULATE_PPI (1)
/* max. buffer size supported by fTPM */
#define MAX_COMMAND_SIZE 4096
#define MAX_RESPONSE_SIZE 4096
/**
* struct ftpm_tee_private - fTPM's private data
* @chip: struct tpm_chip instance registered with tpm framework.
* @state: internal state
* @session: fTPM TA session identifier.
* @resp_len: cached response buffer length.
* @resp_buf: cached response buffer.
* @ctx: TEE context handler.
* @shm: Memory pool shared with fTPM TA in TEE.
*/
struct ftpm_tee_private {
struct tpm_chip *chip;
u32 session;
size_t resp_len;
u8 resp_buf[MAX_RESPONSE_SIZE];
struct tee_context *ctx;
struct tee_shm *shm;
};
#endif /* __TPM_FTPM_TEE_H__ */
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