/****************************************************************************

Copyright(c) 2019 by Aerospace C.Power (Chongqing) Microelectronics. ALL RIGHTS RESERVED.

This Information is proprietary to Aerospace C.Power (Chongqing) Microelectronics and MAY NOT
be copied by any method or incorporated into another program without
the express written consent of Aerospace C.Power. This Information or any portion
thereof remains the property of Aerospace C.Power. The Information contained herein
is believed to be accurate and Aerospace C.Power assumes no responsibility or
liability for its use in any way and conveys no license or title under
any patent or copyright and makes no representation or warranty that this
Information is free from patent or copyright infringement.

****************************************************************************/

#ifndef _IOT_CRYPTO_SHARE_H_
#define _IOT_CRYPTO_SHARE_H_

/* os shim includes */
#include "os_types.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct _iot_crypto_share_fifo {
    /* fifo size */
    uint16_t size;
    /* write index */
    uint8_t wr_idx;
    /* read index */
    uint8_t rd_idx;
    /* fifo crypto data buffer list */
    uint8_t **buf;
} iot_crypto_share_fifo_t;

typedef struct _iot_crypto_share {
    /* crypto current data buffer */
    uint8_t *cur_buf;
    /* crypto share request fifo */
    iot_crypto_share_fifo_t req;
    /* crypto share response fifo */
    iot_crypto_share_fifo_t rsp;
} iot_crypto_share_t;

#define iot_crypto_share_is_enable(p_share)      ((p_share) != NULL)

/**
 * @brief                   get the number of elements in the fifo
 * @param fifo:             fifo address
 *
 * @retval:                 the number of elements in the fifo
 */
uint8_t iot_crypto_share_fifo_elements(iot_crypto_share_fifo_t *fifo);

/**
 * @brief                   write a buffer into the fifo
 * @param fifo:             fifo address
 * @param buf:              buffer address
 *
 * @retval:                 error code, see ERR_XXX
 */
uint32_t iot_crypto_share_fifo_put(iot_crypto_share_fifo_t *fifo,
    uint8_t *buf);

/**
 * @brief                   read buffer from the fifo
 * @param fifo:             fifo address
 *
 * @retval:                 buffer address
 */
uint8_t *iot_crypto_share_fifo_get(iot_crypto_share_fifo_t *fifo);

/**
 * @brief                   init crypto share fifo context
 * @param fifo:             fifo address
 * @param size:             fifo list buffer size
 * @param buf_list:         fifo list buffer
 *
 * @retval:                 buffer address
 */
void iot_crypto_share_fifo_init(iot_crypto_share_fifo_t *fifo, uint8_t size,
    uint8_t **buf_list);

#ifdef __cplusplus
}
#endif

#endif // _IOT_CRYPTO_SHARE_H_