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https://github.com/brain-hackers/u-boot-brain
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7c73537e8e
This function is misnamed since it only applies to a single driver. Merge its fields into its parent. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
111 lines
2.0 KiB
C
111 lines
2.0 KiB
C
/*
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* Copyright (C) 2011 Infineon Technologies
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*
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* Authors:
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* Peter Huewe <huewe.external@infineon.com>
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*
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* Version: 2.1.1
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*
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* Description:
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* Device driver for TCG/TCPA TPM (trusted platform module).
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* Specifications at www.trustedcomputinggroup.org
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*
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* It is based on the Linux kernel driver tpm.c from Leendert van
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* Dorn, Dave Safford, Reiner Sailer, and Kyleen Hall.
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*
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* SPDX-License-Identifier: GPL-2.0
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*/
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#ifndef _TPM_TIS_I2C_H
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#define _TPM_TIS_I2C_H
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#include <linux/compiler.h>
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#include <linux/types.h>
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enum tpm_timeout {
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TPM_TIMEOUT = 5, /* msecs */
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};
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/* Size of external transmit buffer (used in tpm_transmit)*/
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#define TPM_BUFSIZE 4096
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/* Index of Count field in TPM response buffer */
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#define TPM_RSP_SIZE_BYTE 2
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#define TPM_RSP_RC_BYTE 6
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struct tpm_chip;
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struct tpm_chip {
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int is_open;
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u8 req_complete_mask;
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u8 req_complete_val;
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u8 req_canceled;
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int irq;
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int locality;
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unsigned long timeout_a, timeout_b, timeout_c, timeout_d; /* msec */
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unsigned long duration[3]; /* msec */
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};
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struct tpm_input_header {
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__be16 tag;
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__be32 length;
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__be32 ordinal;
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} __packed;
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struct tpm_output_header {
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__be16 tag;
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__be32 length;
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__be32 return_code;
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} __packed;
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struct timeout_t {
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__be32 a;
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__be32 b;
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__be32 c;
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__be32 d;
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} __packed;
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struct duration_t {
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__be32 tpm_short;
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__be32 tpm_medium;
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__be32 tpm_long;
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} __packed;
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union cap_t {
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struct timeout_t timeout;
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struct duration_t duration;
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};
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struct tpm_getcap_params_in {
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__be32 cap;
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__be32 subcap_size;
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__be32 subcap;
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} __packed;
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struct tpm_getcap_params_out {
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__be32 cap_size;
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union cap_t cap;
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} __packed;
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union tpm_cmd_header {
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struct tpm_input_header in;
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struct tpm_output_header out;
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};
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union tpm_cmd_params {
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struct tpm_getcap_params_out getcap_out;
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struct tpm_getcap_params_in getcap_in;
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};
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struct tpm_cmd_t {
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union tpm_cmd_header header;
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union tpm_cmd_params params;
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} __packed;
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struct udevice;
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int tpm_vendor_init(struct udevice *dev);
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void tpm_vendor_cleanup(struct tpm_chip *chip);
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#endif
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