1/*
2 * drivers/net/ibm_emac/ibm_emac_phy.h
3 *
4 * Driver for PowerPC 4xx on-chip ethernet controller, PHY support
5 *
6 * Benjamin Herrenschmidt <benh@kernel.crashing.org>
7 * February 2003
8 *
9 * Minor additions by Eugene Surovegin <ebs@ebshome.net>, 2004
10 *
11 * This program is free software; you can redistribute  it and/or modify it
12 * under  the terms of  the GNU General  Public License as published by the
13 * Free Software Foundation;  either version 2 of the  License, or (at your
14 * option) any later version.
15 *
16 * This file basically duplicates sungem_phy.{c,h} with different PHYs
17 * supported. I'm looking into merging that in a single mii layer more
18 * flexible than mii.c
19 */
20
21#ifndef _IBM_OCP_PHY_H_
22#define _IBM_OCP_PHY_H_
23
24struct mii_phy;
25
26/* Operations supported by any kind of PHY */
27struct mii_phy_ops {
28	int (*init) (struct mii_phy * phy);
29	int (*suspend) (struct mii_phy * phy, int wol_options);
30	int (*setup_aneg) (struct mii_phy * phy, u32 advertise);
31	int (*setup_forced) (struct mii_phy * phy, int speed, int fd);
32	int (*poll_link) (struct mii_phy * phy);
33	int (*read_link) (struct mii_phy * phy);
34};
35
36/* Structure used to statically define an mii/gii based PHY */
37struct mii_phy_def {
38	u32 phy_id;		/* Concatenated ID1 << 16 | ID2 */
39	u32 phy_id_mask;	/* Significant bits */
40	u32 features;		/* Ethtool SUPPORTED_* defines or
41				   0 for autodetect */
42	int magic_aneg;		/* Autoneg does all speed test for us */
43	const char *name;
44	const struct mii_phy_ops *ops;
45};
46
47/* An instance of a PHY, partially borrowed from mii_if_info */
48struct mii_phy {
49	struct mii_phy_def *def;
50	u32 advertising;	/* Ethtool ADVERTISED_* defines */
51	u32 features;		/* Copied from mii_phy_def.features
52				   or determined automaticaly */
53	int address;		/* PHY address */
54	int mode;		/* PHY mode */
55
56	/* 1: autoneg enabled, 0: disabled */
57	int autoneg;
58
59	/* forced speed & duplex (no autoneg)
60	 * partner speed & duplex & pause (autoneg)
61	 */
62	int speed;
63	int duplex;
64	int pause;
65	int asym_pause;
66
67	/* Provided by host chip */
68	struct net_device *dev;
69	int (*mdio_read) (struct net_device * dev, int addr, int reg);
70	void (*mdio_write) (struct net_device * dev, int addr, int reg,
71			    int val);
72};
73
74/* Pass in a struct mii_phy with dev, mdio_read and mdio_write
75 * filled, the remaining fields will be filled on return
76 */
77int mii_phy_probe(struct mii_phy *phy, int address);
78int mii_reset_phy(struct mii_phy *phy);
79
80#endif				/* _IBM_OCP_PHY_H_ */
81