mii.h
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上传日期:2009-04-28
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- /*
- * linux/mii.h: definitions for MII-compatible transceivers
- * Originally drivers/net/sunhme.h.
- *
- * Copyright (C) 1996, 1999, 2001 David S. Miller (davem@redhat.com)
- */
- #ifndef __LINUX_MII_H__
- #define __LINUX_MII_H__
- #include <linux/types.h>
- #include <linux/if.h>
- /* 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_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_100FULL2 0x0200 /* Can do 100BASE-T2 HDX */
- #define BMSR_100HALF2 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 /* Link partner local receiver status */
- #define LPA_1000REMRXOK 0x1000 /* Link partner remote receiver status */
- #define LPA_1000FULL 0x0800 /* Link partner 1000BASE-T full duplex */
- #define LPA_1000HALF 0x0400 /* Link partner 1000BASE-T half duplex */
- 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);
- };
- struct ethtool_cmd;
- struct mii_ioctl_data;
- extern int mii_link_ok (struct mii_if_info *mii);
- extern int mii_nway_restart (struct mii_if_info *mii);
- extern int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd);
- extern int mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd);
- extern void mii_check_link (struct mii_if_info *mii);
- extern unsigned int mii_check_media (struct mii_if_info *mii,
- unsigned int ok_to_print,
- unsigned int init_media);
- extern int generic_mii_ioctl(struct mii_if_info *mii_if,
- struct mii_ioctl_data *mii_data, int cmd,
- unsigned int *duplex_changed);
- /* This structure is used in all SIOCxMIIxxx ioctl calls */
- struct mii_ioctl_data {
- u16 phy_id;
- u16 reg_num;
- u16 val_in;
- u16 val_out;
- };
- static inline struct mii_ioctl_data *if_mii(struct ifreq *rq)
- {
- return (struct mii_ioctl_data *) &rq->ifr_ifru;
- }
- /**
- * mii_nway_result
- * @negotiated: value of MII ANAR and'd with ANLPAR
- *
- * Given a set of MII abilities, check each bit and returns the
- * currently supported media, in the priority order defined by
- * IEEE 802.3u. We use LPA_xxx constants but note this is not the
- * value of LPA solely, as described above.
- *
- * The one exception to IEEE 802.3u is that 100baseT4 is placed
- * between 100T-full and 100T-half. If your phy does not support
- * 100T4 this is fine. If your phy places 100T4 elsewhere in the
- * priority order, you will need to roll your own function.
- */
- static inline unsigned int mii_nway_result (unsigned int negotiated)
- {
- unsigned int ret;
- if (negotiated & LPA_100FULL)
- ret = LPA_100FULL;
- else if (negotiated & LPA_100BASE4)
- ret = LPA_100BASE4;
- else if (negotiated & LPA_100HALF)
- ret = LPA_100HALF;
- else if (negotiated & LPA_10FULL)
- ret = LPA_10FULL;
- else
- ret = LPA_10HALF;
- return ret;
- }
- /**
- * mii_duplex
- * @duplex_lock: Non-zero if duplex is locked at full
- * @negotiated: value of MII ANAR and'd with ANLPAR
- *
- * A small helper function for a common case. Returns one
- * if the media is operating or locked at full duplex, and
- * returns zero otherwise.
- */
- static inline unsigned int mii_duplex (unsigned int duplex_lock,
- unsigned int negotiated)
- {
- if (duplex_lock)
- return 1;
- if (mii_nway_result(negotiated) & LPA_DUPLEX)
- return 1;
- return 0;
- }
- #endif /* __LINUX_MII_H__ */