[thirdparty/u-boot.git] / include / rng.h

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (c) 2019, Linaro Limited
 */

#if !defined _RNG_H_
#define _RNG_H_

struct udevice;

/**
 * dm_rng_read() - read a random number seed from the rng device
 * @buffer:	input buffer to put the read random seed into
 * @size:	number of bytes of random seed read
 *
 * Return: 0 if OK, -ve on error
 */
int dm_rng_read(struct udevice *dev, void *buffer, size_t size);

/* struct dm_rng_ops - Operations for the hwrng uclass */
struct dm_rng_ops {
	/**
	 * @read() - read a random number seed
	 *
	 * @data:	input buffer to read the random seed
	 * @max:	total number of bytes to read
	 *
	 * Return: 0 if OK, -ve on error
	 */
	int (*read)(struct udevice *dev, void *data, size_t max);
};

#endif /* _RNG_H_ */
Commit	Line	Data
a2487684 SG	1	// SPDX-License-Identifier: GPL-2.0+
	2	/*
	3	* Copyright (c) 2019, Linaro Limited
	4	*/
	5
	6	#if !defined _RNG_H_
	7	#define _RNG_H_
	8
	9	struct udevice;
	10
	11	/**
	12	* dm_rng_read() - read a random number seed from the rng device
	13	* @buffer: input buffer to put the read random seed into
	14	* @size: number of bytes of random seed read
	15	*
	16	* Return: 0 if OK, -ve on error
	17	*/
	18	int dm_rng_read(struct udevice dev, void buffer, size_t size);
	19
	20	/* struct dm_rng_ops - Operations for the hwrng uclass */
	21	struct dm_rng_ops {
	22	/**
	23	* @read() - read a random number seed
	24	*
	25	* @data: input buffer to read the random seed
	26	* @max: total number of bytes to read
	27	*
	28	* Return: 0 if OK, -ve on error
	29	*/
	30	int (read)(struct udevice dev, void *data, size_t max);
	31	};
	32
	33	#endif /* _RNG_H_ */