[mii] Remove unused functionality

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/include/mii.h

@@ -157,63 +157,4 @@ struct mii_if_info {
         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 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);
-
-
-/**
- * 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

src/net/mii.c

@@ -1,147 +0,0 @@
-/*
-
-	mii.c: MII interface library
-
-	Ported to iPXE by Daniel Verkamp <daniel@drv.nu>
-	from Linux drivers/net/mii.c
-
-	Maintained by Jeff Garzik <jgarzik@pobox.com>
-	Copyright 2001,2002 Jeff Garzik
-
-	Various code came from myson803.c and other files by
-	Donald Becker.  Copyright:
-
-		Written 1998-2002 by Donald Becker.
-
-		This software may be used and distributed according
-		to the terms of the GNU General Public License (GPL),
-		incorporated herein by reference.  Drivers based on
-		or derived from this code fall under the GPL and must
-		retain the authorship, copyright and license notice.
-		This file is not a complete program and may only be
-		used when the entire operating system is licensed
-		under the GPL.
-
-		The author may be reached as becker@scyld.com, or C/O
-		Scyld Computing Corporation
-		410 Severn Ave., Suite 210
-		Annapolis MD 21403
-
-*/
-
-#include <mii.h>
-
-/**
- * mii_link_ok - is link status up/ok
- * @mii: the MII interface
- *
- * Returns 1 if the MII reports link status up/ok, 0 otherwise.
- */
-int
-mii_link_ok ( struct mii_if_info *mii )
-{
-	/* first, a dummy read, needed to latch some MII phys */
-	mii->mdio_read ( mii->dev, mii->phy_id, MII_BMSR );
-	if ( mii->mdio_read ( mii->dev, mii->phy_id, MII_BMSR ) & BMSR_LSTATUS )
-		return 1;
-	return 0;
-}
-
-/**
- * mii_check_link - check MII link status
- * @mii: MII interface
- *
- * If the link status changed (previous != current), call
- * netif_carrier_on() if current link status is Up or call
- * netif_carrier_off() if current link status is Down.
- */
-void
-mii_check_link ( struct mii_if_info *mii )
-{
-	int cur_link = mii_link_ok ( mii );
-	int prev_link = netdev_link_ok ( mii->dev );
-
-	if ( cur_link && !prev_link )
-		netdev_link_up ( mii->dev );
-	else if (prev_link && !cur_link)
-		netdev_link_down ( mii->dev );
-}
-
-
-/**
- * mii_check_media - check the MII interface for a duplex change
- * @mii: the MII interface
- * @ok_to_print: OK to print link up/down messages
- * @init_media: OK to save duplex mode in @mii
- *
- * Returns 1 if the duplex mode changed, 0 if not.
- * If the media type is forced, always returns 0.
- */
-unsigned int
-mii_check_media ( struct mii_if_info *mii,
-                  unsigned int ok_to_print,
-                  unsigned int init_media )
-{
-	unsigned int old_carrier, new_carrier;
-	int advertise, lpa, media, duplex;
-	int lpa2 = 0;
-
-	/* if forced media, go no further */
-	if (mii->force_media)
-		return 0; /* duplex did not change */
-
-	/* check current and old link status */
-	old_carrier = netdev_link_ok ( mii->dev ) ? 1 : 0;
-	new_carrier = (unsigned int) mii_link_ok ( mii );
-
-	/* if carrier state did not change, this is a "bounce",
-	 * just exit as everything is already set correctly
-	 */
-	if ( ( ! init_media ) && ( old_carrier == new_carrier ) )
-		return 0; /* duplex did not change */
-
-	/* no carrier, nothing much to do */
-	if ( ! new_carrier ) {
-		netdev_link_down ( mii->dev );
-		if ( ok_to_print )
-			DBG ( "%s: link down\n", mii->dev->name);
-		return 0; /* duplex did not change */
-	}
-
-	/*
-	 * we have carrier, see who's on the other end
-	 */
-	netdev_link_up ( mii->dev );
-
-	/* get MII advertise and LPA values */
-	if ( ( ! init_media ) && ( mii->advertising ) ) {
-		advertise = mii->advertising;
-	} else {
-		advertise = mii->mdio_read ( mii->dev, mii->phy_id, MII_ADVERTISE );
-		mii->advertising = advertise;
-	}
-	lpa = mii->mdio_read ( mii->dev, mii->phy_id, MII_LPA );
-	if ( mii->supports_gmii )
-		lpa2 = mii->mdio_read ( mii->dev, mii->phy_id, MII_STAT1000 );
-
-	/* figure out media and duplex from advertise and LPA values */
-	media = mii_nway_result ( lpa & advertise );
-	duplex = ( media & ADVERTISE_FULL ) ? 1 : 0;
-	if ( lpa2 & LPA_1000FULL )
-		duplex = 1;
-
-	if ( ok_to_print )
-		DBG ( "%s: link up, %sMbps, %s-duplex, lpa 0x%04X\n",
-		       mii->dev->name,
-		       lpa2 & ( LPA_1000FULL | LPA_1000HALF ) ? "1000" :
-		       media & ( ADVERTISE_100FULL | ADVERTISE_100HALF ) ? "100" : "10",
-		       duplex ? "full" : "half",
-		       lpa);
-
-	if ( ( init_media ) || ( mii->full_duplex != duplex ) ) {
-		mii->full_duplex = duplex;
-		return 1; /* duplex changed */
-	}
-
-	return 0; /* duplex did not change */
-}