/* Copyright 2022 The ChromiumOS Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef ZEPHYR_INCLUDE_EMUL_STUB_DEVICE_H_
#define ZEPHYR_INCLUDE_EMUL_STUB_DEVICE_H_

#include <zephyr/device.h>
#include <zephyr/devicetree.h>

/*
 * Needed for emulators without corresponding DEVICE_DT_DEFINE drivers
 */

struct emul_stub_dev_data {
	/* Stub */
};
struct emul_stub_dev_config {
	/* Stub */
};
struct emul_stub_dev_api {
	/* Stub */
};

/* For every instance of a DT_DRV_COMPAT stub out a device for that instance */
#define EMUL_STUB_DEVICE(n)                                                    \
	__maybe_unused static int emul_init_stub_##n(const struct device *dev) \
	{                                                                      \
		ARG_UNUSED(dev);                                               \
		return 0;                                                      \
	}                                                                      \
                                                                               \
	/* Since this is only stub, allocate the structs once. */              \
	static struct emul_stub_dev_data stub_data_##n;                        \
	static struct emul_stub_dev_config stub_config_##n;                    \
	static struct emul_stub_dev_api stub_api_##n;                          \
	DEVICE_DT_INST_DEFINE(n, &emul_init_stub_##n, NULL, &stub_data_##n,    \
			      &stub_config_##n, POST_KERNEL, 1,                \
			      &stub_api_##n);

#endif /* ZEPHYR_INCLUDE_EMUL_STUB_DEVICE_H_ */