URL https://opencores.org/ocsvn/test_project/test_project/trunk

Subversion Repositories test_project

[/] [test_project/] [trunk/] [linux_sd_driver/] [include/] [linux/] [mii.h] - Blame information for rev 81

Go to most recent revision | Details | Compare with Previous | View Log


/*
 * 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>
 
/* 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_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  /* 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 */
 
/* 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;
};
 
#ifdef __KERNEL__ 
 
#include <linux/if.h>
 
struct ethtool_cmd;
 
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);
};
 
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 int mii_check_gmii_support(struct mii_if_info *mii);
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);
 
 
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 /* __KERNEL__ */
#endif /* __LINUX_MII_H__ */

Browse

Tools

Subversion Repositories test_project

[/] [test_project/] [trunk/] [linux_sd_driver/] [include/] [linux/] [mii.h] - Blame information for rev 81

Line No.	Rev	Author	Line
1	62	marcus.erl	`/*`
2			`* linux/mii.h: definitions for MII-compatible transceivers`
3			`* Originally drivers/net/sunhme.h.`
4			`*`
5			`* Copyright (C) 1996, 1999, 2001 David S. Miller (davem@redhat.com)`
6			`*/`
7
8			`#ifndef __LINUX_MII_H__`
9			`#define __LINUX_MII_H__`
10
11			`#include <linux/types.h>`
12
13			`/* Generic MII registers. */`
14
15			`#define MII_BMCR 0x00 /* Basic mode control register */`
16			`#define MII_BMSR 0x01 /* Basic mode status register */`
17			`#define MII_PHYSID1 0x02 /* PHYS ID 1 */`
18			`#define MII_PHYSID2 0x03 /* PHYS ID 2 */`
19			`#define MII_ADVERTISE 0x04 /* Advertisement control reg */`
20			`#define MII_LPA 0x05 /* Link partner ability reg */`
21			`#define MII_EXPANSION 0x06 /* Expansion register */`
22			`#define MII_CTRL1000 0x09 /* 1000BASE-T control */`
23			`#define MII_STAT1000 0x0a /* 1000BASE-T status */`
24			`#define MII_ESTATUS 0x0f /* Extended Status */`
25			`#define MII_DCOUNTER 0x12 /* Disconnect counter */`
26			`#define MII_FCSCOUNTER 0x13 /* False carrier counter */`
27			`#define MII_NWAYTEST 0x14 /* N-way auto-neg test reg */`
28			`#define MII_RERRCOUNTER 0x15 /* Receive error counter */`
29			`#define MII_SREVISION 0x16 /* Silicon revision */`
30			`#define MII_RESV1 0x17 /* Reserved... */`
31			`#define MII_LBRERROR 0x18 /* Lpback, rx, bypass error */`
32			`#define MII_PHYADDR 0x19 /* PHY address */`
33			`#define MII_RESV2 0x1a /* Reserved... */`
34			`#define MII_TPISTATUS 0x1b /* TPI status for 10mbps */`
35			`#define MII_NCONFIG 0x1c /* Network interface config */`
36
37			`/* Basic mode control register. */`
38			`#define BMCR_RESV 0x003f /* Unused... */`
39			`#define BMCR_SPEED1000 0x0040 /* MSB of Speed (1000) */`
40			`#define BMCR_CTST 0x0080 /* Collision test */`
41			`#define BMCR_FULLDPLX 0x0100 /* Full duplex */`
42			`#define BMCR_ANRESTART 0x0200 /* Auto negotiation restart */`
43			`#define BMCR_ISOLATE 0x0400 /* Disconnect DP83840 from MII */`
44			`#define BMCR_PDOWN 0x0800 /* Powerdown the DP83840 */`
45			`#define BMCR_ANENABLE 0x1000 /* Enable auto negotiation */`
46			`#define BMCR_SPEED100 0x2000 /* Select 100Mbps */`
47			`#define BMCR_LOOPBACK 0x4000 /* TXD loopback bits */`
48			`#define BMCR_RESET 0x8000 /* Reset the DP83840 */`
49
50			`/* Basic mode status register. */`
51			`#define BMSR_ERCAP 0x0001 /* Ext-reg capability */`
52			`#define BMSR_JCD 0x0002 /* Jabber detected */`
53			`#define BMSR_LSTATUS 0x0004 /* Link status */`
54			`#define BMSR_ANEGCAPABLE 0x0008 /* Able to do auto-negotiation */`
55			`#define BMSR_RFAULT 0x0010 /* Remote fault detected */`
56			`#define BMSR_ANEGCOMPLETE 0x0020 /* Auto-negotiation complete */`
57			`#define BMSR_RESV 0x00c0 /* Unused... */`
58			`#define BMSR_ESTATEN 0x0100 /* Extended Status in R15 */`
59			`#define BMSR_100HALF2 0x0200 /* Can do 100BASE-T2 HDX */`
60			`#define BMSR_100FULL2 0x0400 /* Can do 100BASE-T2 FDX */`
61			`#define BMSR_10HALF 0x0800 /* Can do 10mbps, half-duplex */`
62			`#define BMSR_10FULL 0x1000 /* Can do 10mbps, full-duplex */`
63			`#define BMSR_100HALF 0x2000 /* Can do 100mbps, half-duplex */`
64			`#define BMSR_100FULL 0x4000 /* Can do 100mbps, full-duplex */`
65			`#define BMSR_100BASE4 0x8000 /* Can do 100mbps, 4k packets */`
66
67			`/* Advertisement control register. */`
68			`#define ADVERTISE_SLCT 0x001f /* Selector bits */`
69			`#define ADVERTISE_CSMA 0x0001 /* Only selector supported */`
70			`#define ADVERTISE_10HALF 0x0020 /* Try for 10mbps half-duplex */`
71			`#define ADVERTISE_1000XFULL 0x0020 /* Try for 1000BASE-X full-duplex */`
72			`#define ADVERTISE_10FULL 0x0040 /* Try for 10mbps full-duplex */`
73			`#define ADVERTISE_1000XHALF 0x0040 /* Try for 1000BASE-X half-duplex */`
74			`#define ADVERTISE_100HALF 0x0080 /* Try for 100mbps half-duplex */`
75			`#define ADVERTISE_1000XPAUSE 0x0080 /* Try for 1000BASE-X pause */`
76			`#define ADVERTISE_100FULL 0x0100 /* Try for 100mbps full-duplex */`
77			`#define ADVERTISE_1000XPSE_ASYM 0x0100 /* Try for 1000BASE-X asym pause */`
78			`#define ADVERTISE_100BASE4 0x0200 /* Try for 100mbps 4k packets */`
79			`#define ADVERTISE_PAUSE_CAP 0x0400 /* Try for pause */`
80			`#define ADVERTISE_PAUSE_ASYM 0x0800 /* Try for asymetric pause */`
81			`#define ADVERTISE_RESV 0x1000 /* Unused... */`
82			`#define ADVERTISE_RFAULT 0x2000 /* Say we can detect faults */`
83			`#define ADVERTISE_LPACK 0x4000 /* Ack link partners response */`
84			`#define ADVERTISE_NPAGE 0x8000 /* Next page bit */`
85
86			`#define ADVERTISE_FULL (ADVERTISE_100FULL \| ADVERTISE_10FULL \| \`
87			`ADVERTISE_CSMA)`
88			`#define ADVERTISE_ALL (ADVERTISE_10HALF \| ADVERTISE_10FULL \| \`
89			`ADVERTISE_100HALF \| ADVERTISE_100FULL)`
90
91			`/* Link partner ability register. */`
92			`#define LPA_SLCT 0x001f /* Same as advertise selector */`
93			`#define LPA_10HALF 0x0020 /* Can do 10mbps half-duplex */`
94			`#define LPA_1000XFULL 0x0020 /* Can do 1000BASE-X full-duplex */`
95			`#define LPA_10FULL 0x0040 /* Can do 10mbps full-duplex */`
96			`#define LPA_1000XHALF 0x0040 /* Can do 1000BASE-X half-duplex */`
97			`#define LPA_100HALF 0x0080 /* Can do 100mbps half-duplex */`
98			`#define LPA_1000XPAUSE 0x0080 /* Can do 1000BASE-X pause */`
99			`#define LPA_100FULL 0x0100 /* Can do 100mbps full-duplex */`
100			`#define LPA_1000XPAUSE_ASYM 0x0100 /* Can do 1000BASE-X pause asym*/`
101			`#define LPA_100BASE4 0x0200 /* Can do 100mbps 4k packets */`
102			`#define LPA_PAUSE_CAP 0x0400 /* Can pause */`
103			`#define LPA_PAUSE_ASYM 0x0800 /* Can pause asymetrically */`
104			`#define LPA_RESV 0x1000 /* Unused... */`
105			`#define LPA_RFAULT 0x2000 /* Link partner faulted */`
106			`#define LPA_LPACK 0x4000 /* Link partner acked us */`
107			`#define LPA_NPAGE 0x8000 /* Next page bit */`
108
109			`#define LPA_DUPLEX (LPA_10FULL \| LPA_100FULL)`
110			`#define LPA_100 (LPA_100FULL \| LPA_100HALF \| LPA_100BASE4)`
111
112			`/* Expansion register for auto-negotiation. */`
113			`#define EXPANSION_NWAY 0x0001 /* Can do N-way auto-nego */`
114			`#define EXPANSION_LCWP 0x0002 /* Got new RX page code word */`
115			`#define EXPANSION_ENABLENPAGE 0x0004 /* This enables npage words */`
116			`#define EXPANSION_NPCAPABLE 0x0008 /* Link partner supports npage */`
117			`#define EXPANSION_MFAULTS 0x0010 /* Multiple faults detected */`
118			`#define EXPANSION_RESV 0xffe0 /* Unused... */`
119
120			`#define ESTATUS_1000_TFULL 0x2000 /* Can do 1000BT Full */`
121			`#define ESTATUS_1000_THALF 0x1000 /* Can do 1000BT Half */`
122
123			`/* N-way test register. */`
124			`#define NWAYTEST_RESV1 0x00ff /* Unused... */`
125			`#define NWAYTEST_LOOPBACK 0x0100 /* Enable loopback for N-way */`
126			`#define NWAYTEST_RESV2 0xfe00 /* Unused... */`
127
128			`/* 1000BASE-T Control register */`
129			`#define ADVERTISE_1000FULL 0x0200 /* Advertise 1000BASE-T full duplex */`
130			`#define ADVERTISE_1000HALF 0x0100 /* Advertise 1000BASE-T half duplex */`
131
132			`/* 1000BASE-T Status register */`
133			`#define LPA_1000LOCALRXOK 0x2000 /* Link partner local receiver status */`
134			`#define LPA_1000REMRXOK 0x1000 /* Link partner remote receiver status */`
135			`#define LPA_1000FULL 0x0800 /* Link partner 1000BASE-T full duplex */`
136			`#define LPA_1000HALF 0x0400 /* Link partner 1000BASE-T half duplex */`
137
138			`/* This structure is used in all SIOCxMIIxxx ioctl calls */`
139			`struct mii_ioctl_data {`
140			`__u16 phy_id;`
141			`__u16 reg_num;`
142			`__u16 val_in;`
143			`__u16 val_out;`
144			`};`
145
146			`#ifdef __KERNEL__`
147
148			`#include <linux/if.h>`
149
150			`struct ethtool_cmd;`
151
152			`struct mii_if_info {`
153			`int phy_id;`
154			`int advertising;`
155			`int phy_id_mask;`
156			`int reg_num_mask;`
157
158			`unsigned int full_duplex : 1; /* is full duplex? */`
159			`unsigned int force_media : 1; /* is autoneg. disabled? */`
160			`unsigned int supports_gmii : 1; /* are GMII registers supported? */`
161
162			`struct net_device *dev;`
163			`int (mdio_read) (struct net_device dev, int phy_id, int location);`
164			`void (mdio_write) (struct net_device dev, int phy_id, int location, int val);`
165			`};`
166
167			`extern int mii_link_ok (struct mii_if_info *mii);`
168			`extern int mii_nway_restart (struct mii_if_info *mii);`
169			`extern int mii_ethtool_gset(struct mii_if_info mii, struct ethtool_cmd ecmd);`
170			`extern int mii_ethtool_sset(struct mii_if_info mii, struct ethtool_cmd ecmd);`
171			`extern int mii_check_gmii_support(struct mii_if_info *mii);`
172			`extern void mii_check_link (struct mii_if_info *mii);`
173			`extern unsigned int mii_check_media (struct mii_if_info *mii,`
174			`unsigned int ok_to_print,`
175			`unsigned int init_media);`
176			`extern int generic_mii_ioctl(struct mii_if_info *mii_if,`
177			`struct mii_ioctl_data *mii_data, int cmd,`
178			`unsigned int *duplex_changed);`
179
180
181			`static inline struct mii_ioctl_data if_mii(struct ifreq rq)`
182			`{`
183			`return (struct mii_ioctl_data *) &rq->ifr_ifru;`
184			`}`
185
186
187			`/**`
188			`* mii_nway_result`
189			`* @negotiated: value of MII ANAR and'd with ANLPAR`
190			`*`
191			`* Given a set of MII abilities, check each bit and returns the`
192			`* currently supported media, in the priority order defined by`
193			`* IEEE 802.3u. We use LPA_xxx constants but note this is not the`
194			`* value of LPA solely, as described above.`
195			`*`
196			`* The one exception to IEEE 802.3u is that 100baseT4 is placed`
197			`* between 100T-full and 100T-half. If your phy does not support`
198			`* 100T4 this is fine. If your phy places 100T4 elsewhere in the`
199			`* priority order, you will need to roll your own function.`
200			`*/`
201			`static inline unsigned int mii_nway_result (unsigned int negotiated)`
202			`{`
203			`unsigned int ret;`
204
205			`if (negotiated & LPA_100FULL)`
206			`ret = LPA_100FULL;`
207			`else if (negotiated & LPA_100BASE4)`
208			`ret = LPA_100BASE4;`
209			`else if (negotiated & LPA_100HALF)`
210			`ret = LPA_100HALF;`
211			`else if (negotiated & LPA_10FULL)`
212			`ret = LPA_10FULL;`
213			`else`
214			`ret = LPA_10HALF;`
215
216			`return ret;`
217			`}`
218
219			`/**`
220			`* mii_duplex`
221			`* @duplex_lock: Non-zero if duplex is locked at full`
222			`* @negotiated: value of MII ANAR and'd with ANLPAR`
223			`*`
224			`* A small helper function for a common case. Returns one`
225			`* if the media is operating or locked at full duplex, and`
226			`* returns zero otherwise.`
227			`*/`
228			`static inline unsigned int mii_duplex (unsigned int duplex_lock,`
229			`unsigned int negotiated)`
230			`{`
231			`if (duplex_lock)`
232			`return 1;`
233			`if (mii_nway_result(negotiated) & LPA_DUPLEX)`
234			`return 1;`
235			`return 0;`
236			`}`
237
238			`#endif /* __KERNEL__ */`
239			`#endif /* __LINUX_MII_H__ */`