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* Copyright (c) 2011 The Chromium OS Authors.
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* SPDX-License-Identifier: GPL-2.0+
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/* Low-level interface to access TPM */
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* Initialize the TPM device. Returns 0 on success or -1 on
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* failure (in case device probing did not succeed).
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* Requests access to locality 0 for the caller. After all commands have been
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* completed the caller is supposed to call tis_close().
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* Returns 0 on success, -1 on failure.
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* terminate the currect session with the TPM by releasing the locked
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* locality. Returns 0 on success of -1 on failure (in case lock
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* removal did not succeed).
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* Send the requested data to the TPM and then try to get its response
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* @sendbuf - buffer of the data to send
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* @send_size size of the data to send
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* @recvbuf - memory to save the response to
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* @recv_len - pointer to the size of the response buffer
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* Returns 0 on success (and places the number of response bytes at recv_len)
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int tis_sendrecv(const uint8_t *sendbuf, size_t send_size, uint8_t *recvbuf,