AESECBLPF3.h

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/*
 * Copyright (c) 2021-2024, Texas Instruments Incorporated
 * All rights reserved.
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 *    notice, this list of conditions and the following disclaimer.
 *
 * *  Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
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 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef ti_drivers_aesecb_AESECBLPF3__include
#define ti_drivers_aesecb_AESECBLPF3__include

#include <stdbool.h>
#include <stdint.h>

#include <ti/drivers/AESECB.h>
#include <ti/drivers/cryptoutils/aes/AESCommonLPF3.h>
#include <ti/drivers/cryptoutils/sharedresources/CryptoResourceLPF3.h>

#ifdef __cplusplus
extern "C" {
#endif

#define AESECBLPF3_DMA_SIZE_THRESHOLD (1U * AES_BLOCK_SIZE)

/*
 * AES ECB auto config for a single block encryption:
 *  ECB SRC as BUF
 *  Trigger points for auto ECB as WRBUF3S (encryption starts by writing BUF3)
 *  BUSHALT enabled
 */
#if DeviceFamily_PARENT == DeviceFamily_PARENT_CC23X0
    #define AESEBCLPF3_SINGLE_BLOCK_AUTOCFG \
        ((uint32_t)AES_AUTOCFG_AESSRC_BUF | (uint32_t)AES_AUTOCFG_TRGAES_WRBUF3S | (uint32_t)AES_AUTOCFG_BUSHALT_EN)
#elif DeviceFamily_PARENT == DeviceFamily_PARENT_CC27XX
    #define AESEBCLPF3_SINGLE_BLOCK_AUTOCFG \
        ((uint32_t)AES_AUTOCFG_ECBSRC_BUF | (uint32_t)AES_AUTOCFG_TRGECB_WRBUF3S | (uint32_t)AES_AUTOCFG_BUSHALT_EN)
#else
    #error "Unsupported DeviceFamily_Parent for AESECBLPF3!"
#endif

typedef AESCommonLPF3_HWAttrs AESECBLPF3_HWAttrs;

typedef struct
{
    /* Common member first to allow struct to be cast to the common type */
    AESCommonLPF3_Object common;
    AESECB_Operation *operation;
    AESECB_CallbackFxn callbackFxn;
    AESECB_OperationType operationType;
    bool threadSafe;
#if (DeviceFamily_PARENT == DeviceFamily_PARENT_CC27XX)
    const uint8_t *input;
    uint8_t *output;
    size_t inputLength;
    size_t totalDataLength;
    volatile size_t totalDataLengthRemaining;
    int_fast16_t hsmStatus;
    /* To indicate whether a segmented operation is in progress
     */
    bool segmentedOperationInProgress;
#endif
} AESECBLPF3_Object;

void AESECBLPF3_processData(AESCommonLPF3_Object *object, const uint8_t *input, uint8_t *output, size_t inputLength);
__STATIC_INLINE bool AESECB_acquireLock(AESECB_Handle handle, uint32_t timeout)
{
    return CryptoResourceLPF3_acquireLock(timeout);
}
__STATIC_INLINE void AESECB_releaseLock(AESECB_Handle handle)
{
    CryptoResourceLPF3_releaseLock();
}
__STATIC_INLINE void AESECB_enableThreadSafety(AESECB_Handle handle)
{
    AESECBLPF3_Object *object = handle->object;
    object->threadSafe        = true;
}
__STATIC_INLINE void AESECB_disableThreadSafety(AESECB_Handle handle)
{
    AESECBLPF3_Object *object = handle->object;
    object->threadSafe        = false;
}
#ifdef __cplusplus
}
#endif

#endif /* ti_drivers_aesecb_AESECBLPF3__include */