/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * Copyright (C) 2026 Airoha Technology Corp.
 * Copyright (C) 2026 Collabora Ltd.
 *                    Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
 */

#ifndef __AIR_PHY_LIB_H
#define __AIR_PHY_LIB_H

#include <linux/phy.h>

#define AIR_EXT_PAGE_ACCESS             0x1f

#define AIR_PHY_PAGE_STANDARD           0x0000
#define AIR_PHY_PAGE_EXTENDED_1         0x0001
#define AIR_PHY_PAGE_EXTENDED_4         0x0004

/* MII Registers Page 4*/
#define AIR_BPBUS_MODE                  0x10
#define   AIR_BPBUS_MODE_ADDR_FIXED             0x0000
#define   AIR_BPBUS_MODE_ADDR_INCR              BIT(15)
#define AIR_BPBUS_WR_ADDR_HIGH          0x11
#define AIR_BPBUS_WR_ADDR_LOW           0x12
#define AIR_BPBUS_WR_DATA_HIGH          0x13
#define AIR_BPBUS_WR_DATA_LOW           0x14
#define AIR_BPBUS_RD_ADDR_HIGH          0x15
#define AIR_BPBUS_RD_ADDR_LOW           0x16
#define AIR_BPBUS_RD_DATA_HIGH          0x17
#define AIR_BPBUS_RD_DATA_LOW           0x18

int air_phy_buckpbus_reg_modify(struct phy_device *phydev, u32 pbus_address,
                                u32 mask, u32 set);
int air_phy_buckpbus_reg_read(struct phy_device *phydev, u32 pbus_address,
                              u32 *pbus_data);
int air_phy_buckpbus_reg_write(struct phy_device *phydev, u32 pbus_address,
                               u32 pbus_data);
int air_phy_read_page(struct phy_device *phydev);
int air_phy_write_page(struct phy_device *phydev, int page);

#endif /* __AIR_PHY_LIB_H */