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/* SPDX-License-Identifier: BSD-3-Clause */
#ifndef TSS1_H_
#define TSS1_H_
#include <types.h>
#include <vb2_sha.h>
#include <security/tpm/tss/tcg-1.2/tss_structures.h>
#include <security/tpm/tss_errors.h>
/*
* TPM1.2-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 space with permission [perm]. [index] is the index for the space,
* [size] the usable data size. The TPM error code is returned.
*/
tpm_result_t tlcl1_define_space(uint32_t index, uint32_t perm, uint32_t size);
/**
* Issue a PhysicalEnable. The TPM error code is returned.
*/
tpm_result_t tlcl1_set_enable(void);
/**
* Issue a SetDeactivated. Pass 0 to activate. Returns result code.
*/
tpm_result_t tlcl1_set_deactivated(uint8_t flag);
/**
* Get flags of interest. Pointers for flags you aren't interested in may
* be NULL. The TPM error code is returned.
*/
tpm_result_t tlcl1_get_flags(uint8_t *disable, uint8_t *deactivated, uint8_t *nvlocked);
/**
* Perform a raw TPM request/response transaction.
*/
tpm_result_t tlcl1_send_receive(const uint8_t *request, uint8_t *response, int max_length);
/**
* Run the self test in the background.
*/
tpm_result_t tlcl1_continue_self_test(void);
/**
* Set the nvLocked bit. The TPM error code is returned.
*/
tpm_result_t tlcl1_set_nv_locked(void);
/**
* Get the entire set of permanent flags.
*/
tpm_result_t tlcl1_get_permanent_flags(TPM_PERMANENT_FLAGS *pflags);
/**
* Set the bGlobalLock flag, which only a reboot can clear. The TPM error
* code is returned.
*/
tpm_result_t tlcl1_set_global_lock(void);
/**
* Get the permission bits for the NVRAM space with |index|.
*/
tpm_result_t tlcl1_get_permissions(uint32_t index, uint32_t *permissions);
/*
* Declarations for "private" functions which are dispatched to by tss/tss.c
* based on TPM family.
*/
tpm_result_t tlcl1_save_state(void);
tpm_result_t tlcl1_resume(void);
tpm_result_t tlcl1_startup(void);
tpm_result_t tlcl1_self_test_full(void);
tpm_result_t tlcl1_read(uint32_t index, void *data, uint32_t length);
tpm_result_t tlcl1_write(uint32_t index, const void *data, uint32_t length);
tpm_result_t tlcl1_assert_physical_presence(void);
tpm_result_t tlcl1_physical_presence_cmd_enable(void);
tpm_result_t tlcl1_finalize_physical_presence(void);
tpm_result_t tlcl1_force_clear(void);
tpm_result_t tlcl1_extend(int pcr_num, const uint8_t *digest_data,
enum vb2_hash_algorithm digest_algo);
#endif /* TSS1_H_ */
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