drivers/net/ibm_emac/ibm_emac_phy.h

   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
  24 struct mii_phy;
  25
  26 /* Operations supported by any kind of PHY */
  27 struct 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 */
  37 struct 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 */
  48 struct 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  */
  77 int mii_phy_probe(struct mii_phy *phy, int address);
  78 int mii_reset_phy(struct mii_phy *phy);
  79
  80 #endif                          /* _IBM_OCP_PHY_H_ */