u-boot/drivers/rng/rng-uclass.c

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

#define LOG_CATEGORY UCLASS_RNG

#include <common.h>
#include <dm.h>
#include <rng.h>

int dm_rng_read(struct udevice *dev, void *buffer, size_t size)
{
	const struct dm_rng_ops *ops = device_get_ops(dev);

	if (!ops->read)
		return -ENOSYS;

	return ops->read(dev, buffer, size);
}

UCLASS_DRIVER(rng) = {
	.name = "rng",
	.id = UCLASS_RNG,
};
dm: rng: Add random number generator(rng) uclass Add a uclass for reading a random number seed from a random number generator device. Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Simon Glass <sjg@chromium.org> 2019-12-28 18:28:27 +00:00			`// SPDX-License-Identifier: GPL-2.0+`
			`/*`
			`* Copyright (c) 2019, Linaro Limited`
			`*/`

dm: define LOG_CATEGORY for all uclass Define LOG_CATEGORY for all uclass to allow filtering with log command. Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Reviewed-by: Simon Glass <sjg@chromium.org> 2021-04-27 09:02:19 +00:00			`#define LOG_CATEGORY UCLASS_RNG`

dm: rng: Add random number generator(rng) uclass Add a uclass for reading a random number seed from a random number generator device. Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Simon Glass <sjg@chromium.org> 2019-12-28 18:28:27 +00:00			`#include <common.h>`
			`#include <dm.h>`
			`#include <rng.h>`

			`int dm_rng_read(struct udevice dev, void buffer, size_t size)`
			`{`
			`const struct dm_rng_ops *ops = device_get_ops(dev);`

			`if (!ops->read)`
			`return -ENOSYS;`

			`return ops->read(dev, buffer, size);`
			`}`

			`UCLASS_DRIVER(rng) = {`
			`.name = "rng",`
			`.id = UCLASS_RNG,`
			`};`