/*
 * net/dsa/mv88e6xxx.h - Marvell 88e6xxx switch chip support
 * Copyright (c) 2008 Marvell Semiconductor
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#ifndef __MV88E6XXX_H
#define __MV88E6XXX_H

#define REG_PORT(p)		(0x10 + (p))
#define REG_GLOBAL		0x1b
#define REG_GLOBAL2		0x1c

struct mv88e6xxx_priv_state {
	/*
	 * When using multi-chip addressing, this mutex protects
	 * access to the indirect access registers.  (In single-chip
	 * mode, this mutex is effectively useless.)
	 */
	struct mutex	smi_mutex;

#ifdef CONFIG_NET_DSA_MV88E6XXX_NEED_PPU
	/*
	 * Handles automatic disabling and re-enabling of the PHY
	 * polling unit.
	 */
	struct mutex		ppu_mutex;
	int			ppu_disabled;
	struct work_struct	ppu_work;
	struct timer_list	ppu_timer;
#endif

	/*
	 * This mutex serialises access to the statistics unit.
	 * Hold this mutex over snapshot + dump sequences.
	 */
	struct mutex	stats_mutex;
};

struct mv88e6xxx_hw_stat {
	char string[ETH_GSTRING_LEN];
	int sizeof_stat;
	int reg;
};

int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg);
int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg);
int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
                          int reg, u16 val);
int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val);
int mv88e6xxx_config_prio(struct dsa_switch *ds);
int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr);
int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr);
int mv88e6xxx_phy_read(struct dsa_switch *ds, int addr, int regnum);
int mv88e6xxx_phy_write(struct dsa_switch *ds, int addr, int regnum, u16 val);
void mv88e6xxx_ppu_state_init(struct dsa_switch *ds);
int mv88e6xxx_phy_read_ppu(struct dsa_switch *ds, int addr, int regnum);
int mv88e6xxx_phy_write_ppu(struct dsa_switch *ds, int addr,
			    int regnum, u16 val);
void mv88e6xxx_poll_link(struct dsa_switch *ds);
void mv88e6xxx_get_strings(struct dsa_switch *ds,
			   int nr_stats, struct mv88e6xxx_hw_stat *stats,
			   int port, uint8_t *data);
void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
				 int nr_stats, struct mv88e6xxx_hw_stat *stats,
				 int port, uint64_t *data);

#define REG_READ(addr, reg)						\
	({								\
		int __ret;						\
									\
		__ret = mv88e6xxx_reg_read(ds, addr, reg);		\
		if (__ret < 0)						\
			return __ret;					\
		__ret;							\
	})

#define REG_WRITE(addr, reg, val)					\
	({								\
		int __ret;						\
									\
		__ret = mv88e6xxx_reg_write(ds, addr, reg, val);	\
		if (__ret < 0)						\
			return __ret;					\
	})


#endif