no_os_trng.h

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/***************************************************************************/
#ifndef _NO_OS_TRNG_H_
#define _NO_OS_TRNG_H_
 
/******************************************************************************/
/***************************** Include Files **********************************/
/******************************************************************************/
 
#include <stdint.h>
 
/******************************************************************************/
/*************************** Types Declarations *******************************/
/******************************************************************************/
 
struct no_os_trng_platform_ops;
 
struct no_os_trng_desc {
    const struct no_os_trng_platform_ops *platform_ops;
    void *extra;
};
 
struct no_os_trng_init_param {
    uint32_t    dev_id;
    void        *extra;
    const struct no_os_trng_platform_ops *platform_ops;
};
 
struct no_os_trng_platform_ops {
    int (*init)(struct no_os_trng_desc **,
            const struct no_os_trng_init_param *);
    int (*fill_buffer)(struct no_os_trng_desc *, uint8_t *, uint32_t);
    int (*remove)(struct no_os_trng_desc *);
};
 
/******************************************************************************/
/************************ Functions Declarations ******************************/
/******************************************************************************/
 
/* Initialize descriptor */
int no_os_trng_init(struct no_os_trng_desc **desc,
            const struct no_os_trng_init_param *param);
 
/* Free resources allocated in descriptor */
int no_os_trng_remove(struct no_os_trng_desc *desc);
 
/* Fill buffer with random numbers */
int no_os_trng_fill_buffer(struct no_os_trng_desc *desc, uint8_t *buff,
               uint32_t len);
 
#endif // _NO_OS_TRNG_H_