#ifndef _MII_H_
#define _MII_H_

/** @file
 *
 * Media Independent Interface constants
 *
 * Extracted from Linux's include/linux/mii.h
 *
 * Copyright (C) 1996, 1999, 2001 David S. Miller (davem@redhat.com)
 *
 */

FILE_LICENCE ( GPL2_ONLY );

/* Generic MII registers. */
#define MII_BMCR	    0x00	/* Basic mode control register */
#define MII_BMSR	    0x01	/* Basic mode status register  */
#define MII_PHYSID1	    0x02	/* PHYS ID 1		       */
#define MII_PHYSID2	    0x03	/* PHYS ID 2		       */
#define MII_ADVERTISE	    0x04	/* Advertisement control reg   */
#define MII_LPA		    0x05	/* Link partner ability reg    */
#define MII_EXPANSION	    0x06	/* Expansion register	       */
#define MII_CTRL1000	    0x09	/* 1000BASE-T control	       */
#define MII_STAT1000	    0x0a	/* 1000BASE-T status	       */
#define MII_MMD_CTRL	    0x0d	/* MMD Access Control Register */
#define MII_MMD_DATA	    0x0e	/* MMD Access Data Register    */
#define MII_ESTATUS	    0x0f	/* Extended Status */
#define MII_DCOUNTER	    0x12	/* Disconnect counter	       */
#define MII_FCSCOUNTER	    0x13	/* False carrier counter       */
#define MII_NWAYTEST	    0x14	/* N-way auto-neg test reg     */
#define MII_RERRCOUNTER	    0x15	/* Receive error counter       */
#define MII_SREVISION	    0x16	/* Silicon revision	       */
#define MII_RESV1	    0x17	/* Reserved...		       */
#define MII_LBRERROR	    0x18	/* Lpback, rx, bypass error    */
#define MII_PHYADDR	    0x19	/* PHY address		       */
#define MII_RESV2	    0x1a	/* Reserved...		       */
#define MII_TPISTATUS	    0x1b	/* TPI status for 10mbps       */
#define MII_NCONFIG	    0x1c	/* Network interface config    */

/* Basic mode control register. */
#define BMCR_RESV		0x003f	/* Unused...		       */
#define BMCR_SPEED1000		0x0040	/* MSB of Speed (1000)	       */
#define BMCR_CTST		0x0080	/* Collision test	       */
#define BMCR_FULLDPLX		0x0100	/* Full duplex		       */
#define BMCR_ANRESTART		0x0200	/* Auto negotiation restart    */
#define BMCR_ISOLATE		0x0400	/* Disconnect DP83840 from MII */
#define BMCR_PDOWN		0x0800	/* Powerdown the DP83840       */
#define BMCR_ANENABLE		0x1000	/* Enable auto negotiation     */
#define BMCR_SPEED100		0x2000	/* Select 100Mbps	       */
#define BMCR_LOOPBACK		0x4000	/* TXD loopback bits	       */
#define BMCR_RESET		0x8000	/* Reset the DP83840	       */

/* Basic mode status register. */
#define BMSR_ERCAP		0x0001	/* Ext-reg capability	       */
#define BMSR_JCD		0x0002	/* Jabber detected	       */
#define BMSR_LSTATUS		0x0004	/* Link status		       */
#define BMSR_ANEGCAPABLE	0x0008	/* Able to do auto-negotiation */
#define BMSR_RFAULT		0x0010	/* Remote fault detected       */
#define BMSR_ANEGCOMPLETE	0x0020	/* Auto-negotiation complete   */
#define BMSR_RESV		0x00c0	/* Unused...		       */
#define BMSR_ESTATEN		0x0100	/* Extended Status in R15 */
#define BMSR_100HALF2		0x0200	/* Can do 100BASE-T2 HDX */
#define BMSR_100FULL2		0x0400	/* Can do 100BASE-T2 FDX */
#define BMSR_10HALF		0x0800	/* Can do 10mbps, half-duplex  */
#define BMSR_10FULL		0x1000	/* Can do 10mbps, full-duplex  */
#define BMSR_100HALF		0x2000	/* Can do 100mbps, half-duplex */
#define BMSR_100FULL		0x4000	/* Can do 100mbps, full-duplex */
#define BMSR_100BASE4		0x8000	/* Can do 100mbps, 4k packets  */

/* Advertisement control register. */
#define ADVERTISE_SLCT		0x001f	/* Selector bits	       */
#define ADVERTISE_CSMA		0x0001	/* Only selector supported     */
#define ADVERTISE_10HALF	0x0020	/* Try for 10mbps half-duplex  */
#define ADVERTISE_1000XFULL	0x0020	/* Try for 1000BASE-X full-duplex */
#define ADVERTISE_10FULL	0x0040	/* Try for 10mbps full-duplex  */
#define ADVERTISE_1000XHALF	0x0040	/* Try for 1000BASE-X half-duplex */
#define ADVERTISE_100HALF	0x0080	/* Try for 100mbps half-duplex */
#define ADVERTISE_1000XPAUSE	0x0080	/* Try for 1000BASE-X pause    */
#define ADVERTISE_100FULL	0x0100	/* Try for 100mbps full-duplex */
#define ADVERTISE_1000XPSE_ASYM 0x0100	/* Try for 1000BASE-X asym pause */
#define ADVERTISE_100BASE4	0x0200	/* Try for 100mbps 4k packets  */
#define ADVERTISE_PAUSE_CAP	0x0400	/* Try for pause	       */
#define ADVERTISE_PAUSE_ASYM	0x0800	/* Try for asymetric pause     */
#define ADVERTISE_RESV		0x1000	/* Unused...		       */
#define ADVERTISE_RFAULT	0x2000	/* Say we can detect faults    */
#define ADVERTISE_LPACK		0x4000	/* Ack link partners response  */
#define ADVERTISE_NPAGE		0x8000	/* Next page bit	       */

#define ADVERTISE_FULL ( ADVERTISE_100FULL | ADVERTISE_10FULL | \
			 ADVERTISE_CSMA)
#define ADVERTISE_ALL ( ADVERTISE_10HALF | ADVERTISE_10FULL |	\
			ADVERTISE_100HALF | ADVERTISE_100FULL )

/* Link partner ability register. */
#define LPA_SLCT		0x001f	/* Same as advertise selector  */
#define LPA_10HALF		0x0020	/* Can do 10mbps half-duplex   */
#define LPA_1000XFULL		0x0020	/* Can do 1000BASE-X full-duplex */
#define LPA_10FULL		0x0040	/* Can do 10mbps full-duplex   */
#define LPA_1000XHALF		0x0040	/* Can do 1000BASE-X half-duplex */
#define LPA_100HALF		0x0080	/* Can do 100mbps half-duplex  */
#define LPA_1000XPAUSE		0x0080	/* Can do 1000BASE-X pause     */
#define LPA_100FULL		0x0100	/* Can do 100mbps full-duplex  */
#define LPA_1000XPAUSE_ASYM	0x0100	/* Can do 1000BASE-X pause asym*/
#define LPA_100BASE4		0x0200	/* Can do 100mbps 4k packets   */
#define LPA_PAUSE_CAP		0x0400	/* Can pause		       */
#define LPA_PAUSE_ASYM		0x0800	/* Can pause asymetrically     */
#define LPA_RESV		0x1000	/* Unused...		       */
#define LPA_RFAULT		0x2000	/* Link partner faulted	       */
#define LPA_LPACK		0x4000	/* Link partner acked us       */
#define LPA_NPAGE		0x8000	/* Next page bit	       */

#define LPA_DUPLEX		( LPA_10FULL | LPA_100FULL )
#define LPA_100			( LPA_100FULL | LPA_100HALF | LPA_100BASE4 )

/* Expansion register for auto-negotiation. */
#define EXPANSION_NWAY		0x0001	/* Can do N-way auto-nego      */
#define EXPANSION_LCWP		0x0002	/* Got new RX page code word   */
#define EXPANSION_ENABLENPAGE	0x0004	/* This enables npage words    */
#define EXPANSION_NPCAPABLE	0x0008	/* Link partner supports npage */
#define EXPANSION_MFAULTS	0x0010	/* Multiple faults detected    */
#define EXPANSION_RESV		0xffe0	/* Unused...		       */

#define ESTATUS_1000_TFULL	0x2000	/* Can do 1000BT Full */
#define ESTATUS_1000_THALF	0x1000	/* Can do 1000BT Half */

/* N-way test register. */
#define NWAYTEST_RESV1		0x00ff	/* Unused...		       */
#define NWAYTEST_LOOPBACK	0x0100	/* Enable loopback for N-way   */
#define NWAYTEST_RESV2		0xfe00	/* Unused...		       */

/* 1000BASE-T Control register */
#define ADVERTISE_1000FULL	0x0200	/* Advertise 1000BASE-T full duplex */
#define ADVERTISE_1000HALF	0x0100	/* Advertise 1000BASE-T half duplex */

/* 1000BASE-T Status register */
#define LPA_1000LOCALRXOK	0x2000	/* Partner local receiver status */
#define LPA_1000REMRXOK		0x1000	/* Partner remote receiver status */
#define LPA_1000FULL		0x0800	/* Partner 1000BASE-T full duplex */
#define LPA_1000HALF		0x0400	/* Partner 1000BASE-T half duplex */

#include <ipxe/netdevice.h>

struct mii_if_info {
        int phy_id;
        int advertising;
        int phy_id_mask;
        int reg_num_mask;

        unsigned int full_duplex : 1;   /* is full duplex? */
        unsigned int force_media : 1;   /* is autoneg. disabled? */
        unsigned int supports_gmii : 1; /* are GMII registers supported? */

        struct net_device *dev;
        int (*mdio_read) (struct net_device *dev, int phy_id, int location);
        void (*mdio_write) (struct net_device *dev, int phy_id, int location, int val);
};

#endif