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0637c10e72
This driver does not support interrupts, and receiving the response is synchronous with sending the command. Enable synchronous send() with TPM_CHIP_FLAG_SYNC, which implies that ->send() already fills the provided buffer with a response, and ->recv() is not implemented. Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
35 lines
863 B
C
35 lines
863 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) Microsoft Corporation
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*/
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#ifndef __TPM_FTPM_TEE_H__
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#define __TPM_FTPM_TEE_H__
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#include <linux/tee_drv.h>
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#include <linux/tpm.h>
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#include <linux/uuid.h>
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/* The TAFs ID implemented in this TA */
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#define FTPM_OPTEE_TA_SUBMIT_COMMAND (0)
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#define FTPM_OPTEE_TA_EMULATE_PPI (1)
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/* max. buffer size supported by fTPM */
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#define MAX_COMMAND_SIZE 4096
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#define MAX_RESPONSE_SIZE 4096
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/**
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* struct ftpm_tee_private - fTPM's private data
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* @chip: struct tpm_chip instance registered with tpm framework.
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* @session: fTPM TA session identifier.
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* @ctx: TEE context handler.
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* @shm: Memory pool shared with fTPM TA in TEE.
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*/
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struct ftpm_tee_private {
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struct tpm_chip *chip;
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u32 session;
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struct tee_context *ctx;
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struct tee_shm *shm;
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};
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#endif /* __TPM_FTPM_TEE_H__ */
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