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/* SPDX-License-Identifier: BSD-3-Clause */
#ifndef TSS2_H_
#define TSS2_H_
#include <types.h>
#include <vb2_sha.h>
#include <security/tpm/tss/tcg-2.0/tss_structures.h>
#include <security/tpm/tss_errors.h>
/*
* TPM2-specific
*
* Some operations don't have counterparts in standard and are directly exposed
* here.
*
* Other operations are applicable to both TPM versions and have wrappers which
* pick the implementation based on version determined during initialization via
* tlcl_lib_init().
*/
/*
* Define a TPM2 space. The define space command TPM command used by the tlcl
* layer offers the ability to use custom nv attributes and policies.
*/
tpm_result_t tlcl2_define_space(uint32_t space_index, size_t space_size,
const TPMA_NV nv_attributes,
const uint8_t *nv_policy, size_t nv_policy_size);
/*
* Issue TPM2_GetCapability command
*/
tpm_result_t tlcl2_get_capability(TPM_CAP capability, uint32_t property,
uint32_t property_count,
TPMS_CAPABILITY_DATA *capability_data);
/* Issue TPM2_NV_SetBits command */
tpm_result_t tlcl2_set_bits(uint32_t index, uint64_t bits);
/*
* Makes tlcl2_process_command available for on top implementations of
* custom tpm standards like cr50
*/
void *tlcl2_process_command(TPM_CC command, void *command_body);
/* Return digest size of hash algorithm */
uint16_t tlcl2_get_hash_size_from_algo(TPMI_ALG_HASH hash_algo);
/**
* Set Clear Control. The TPM error code is returned.
*/
tpm_result_t tlcl2_clear_control(bool disable);
/**
* Make an NV Ram location read_only. The TPM error code is returned.
*/
tpm_result_t tlcl2_lock_nv_write(uint32_t index);
/**
* Disable platform hierarchy. Specific to TPM2. The TPM error code is returned.
*/
tpm_result_t tlcl2_disable_platform_hierarchy(void);
/*
* Declarations for "private" functions which are dispatched to by tss/tss.c
* based on TPM family.
*/
tpm_result_t tlcl2_save_state(void);
tpm_result_t tlcl2_resume(void);
tpm_result_t tlcl2_startup(void);
tpm_result_t tlcl2_self_test_full(void);
tpm_result_t tlcl2_read(uint32_t index, void *data, uint32_t length);
tpm_result_t tlcl2_write(uint32_t index, const void *data, uint32_t length);
tpm_result_t tlcl2_assert_physical_presence(void);
tpm_result_t tlcl2_physical_presence_cmd_enable(void);
tpm_result_t tlcl2_finalize_physical_presence(void);
tpm_result_t tlcl2_force_clear(void);
tpm_result_t tlcl2_extend(int pcr_num, const uint8_t *digest_data,
enum vb2_hash_algorithm digest_algo);
#endif /* TSS2_H_ */
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