/*
 * Copyright (C) 2025-2025 Intel Corporation.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#ifndef VUART_CONFIG_H_
#define VUART_CONFIG_H_

#include <types.h>

struct target_vuart {
	uint8_t vm_id;		/* target VM id */
	uint8_t vuart_id;	/* target vuart index in a VM */
};

enum vuart_type {
	VUART_LEGACY_PIO = 0,	/* legacy PIO vuart */
	VUART_PCI,		/* PCI vuart, may removed */
};

union vuart_addr {
	uint16_t port_base;		/* addr for legacy type */
	struct {			/* addr for pci type */
		uint8_t f : 3;		/* BITs 0-2 */
		uint8_t d : 5;		/* BITs 3-7 */
		uint8_t b;		/* BITs 8-15 */
	} bdf;
};

struct vuart_config {
	enum vuart_type type;		/* legacy PIO or PCI  */
	union vuart_addr addr;		/* port addr if in legacy type, or bdf addr if in pci type */
	uint16_t irq;
	struct target_vuart t_vuart;	/* target vuart */
} __aligned(8);

#endif /* VUART_CONFIG_H_ */