diff options
author | Brad Smith <brad@cvs.openbsd.org> | 2005-07-22 11:50:54 +0000 |
---|---|---|
committer | Brad Smith <brad@cvs.openbsd.org> | 2005-07-22 11:50:54 +0000 |
commit | a22210d5d06467ea4ad1f935fe012848b4324a93 (patch) | |
tree | fba2b1f7438740ff64e198674f242236526ce286 /sys | |
parent | c27cf3f11701633df387ec2429c65e22b58a230d (diff) |
Reading the IEEE specs shows that the bits have to be reversed when
mapping an OUI to the MII id registers.
From drochner NetBSD
Diffstat (limited to 'sys')
-rw-r--r-- | sys/dev/mii/mii.c | 24 | ||||
-rw-r--r-- | sys/dev/mii/mii.h | 6 | ||||
-rw-r--r-- | sys/dev/mii/miivar.h | 9 |
3 files changed, 31 insertions, 8 deletions
diff --git a/sys/dev/mii/mii.c b/sys/dev/mii/mii.c index 686b4d59bb3..911db2409fa 100644 --- a/sys/dev/mii/mii.c +++ b/sys/dev/mii/mii.c @@ -1,4 +1,4 @@ -/* $OpenBSD: mii.c,v 1.16 2005/07/09 21:32:06 brad Exp $ */ +/* $OpenBSD: mii.c,v 1.17 2005/07/22 11:50:53 brad Exp $ */ /* $NetBSD: mii.c,v 1.19 2000/02/02 17:09:44 thorpej Exp $ */ /*- @@ -304,3 +304,25 @@ mii_down(struct mii_data *mii) child = LIST_NEXT(child, mii_list)) (void) PHY_SERVICE(child, mii, MII_DOWN); } + +static unsigned char +bitreverse(unsigned char x) +{ + static unsigned char nibbletab[16] = { + 0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15 + }; + + return ((nibbletab[x & 15] << 4) | nibbletab[x >> 4]); +} + +int +mii_oui(int id1, int id2) +{ + int h; + + h = (id1 << 6) | (id2 >> 10); + + return ((bitreverse(h >> 16) << 16) | + (bitreverse((h >> 8) & 255) << 8) | + bitreverse(h & 255)); +} diff --git a/sys/dev/mii/mii.h b/sys/dev/mii/mii.h index e074317a866..a68f8447cba 100644 --- a/sys/dev/mii/mii.h +++ b/sys/dev/mii/mii.h @@ -1,4 +1,4 @@ -/* $OpenBSD: mii.h,v 1.7 2004/10/07 22:18:48 brad Exp $ */ +/* $OpenBSD: mii.h,v 1.8 2005/07/22 11:50:53 brad Exp $ */ /* $NetBSD: mii.h,v 1.8 2001/05/31 03:06:46 thorpej Exp $ */ /* @@ -108,10 +108,6 @@ #define IDR2_MODEL 0x03f0 /* vendor model */ #define IDR2_REV 0x000f /* vendor revision */ -#define MII_OUI(id1, id2) (((id1) << 6) | ((id2) >> 10)) -#define MII_MODEL(id2) (((id2) & IDR2_MODEL) >> 4) -#define MII_REV(id2) ((id2) & IDR2_REV) - #define MII_ANAR 0x04 /* Autonegotiation advertisement (rw) */ /* section 28.2.4.1 and 37.2.6.1 */ #define ANAR_NP 0x8000 /* Next page (ro) */ diff --git a/sys/dev/mii/miivar.h b/sys/dev/mii/miivar.h index 7cda8632145..2f24cbcad9f 100644 --- a/sys/dev/mii/miivar.h +++ b/sys/dev/mii/miivar.h @@ -1,4 +1,4 @@ -/* $OpenBSD: miivar.h,v 1.23 2005/03/26 04:40:09 krw Exp $ */ +/* $OpenBSD: miivar.h,v 1.24 2005/07/22 11:50:53 brad Exp $ */ /* $NetBSD: miivar.h,v 1.17 2000/03/06 20:56:57 thorpej Exp $ */ /*- @@ -243,6 +243,7 @@ int mii_mediachg(struct mii_data *); void mii_tick(struct mii_data *); void mii_pollstat(struct mii_data *); void mii_down(struct mii_data *); +int mii_anar(int); int mii_phy_activate(struct device *, enum devact); int mii_phy_detach(struct device *, int); @@ -266,7 +267,11 @@ int mii_phy_statusmsg(struct mii_softc *); void ukphy_status(struct mii_softc *); -int mii_anar(int); +int mii_oui(int, int); +#define MII_OUI(id1, id2) mii_oui(id1, id2) +#define MII_MODEL(id2) (((id2) & IDR2_MODEL) >> 4) +#define MII_REV(id2) ((id2) & IDR2_REV) + #endif /* _KERNEL */ #endif /* _DEV_MII_MIIVAR_H_ */ |