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Diffstat (limited to 'libdde_linux26/contrib/drivers/net/mii.c')
-rw-r--r--libdde_linux26/contrib/drivers/net/mii.c470
1 files changed, 0 insertions, 470 deletions
diff --git a/libdde_linux26/contrib/drivers/net/mii.c b/libdde_linux26/contrib/drivers/net/mii.c
deleted file mode 100644
index 92056051..00000000
--- a/libdde_linux26/contrib/drivers/net/mii.c
+++ /dev/null
@@ -1,470 +0,0 @@
-/*
-
- mii.c: MII interface library
-
- 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 <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-
-/**
- * mii_ethtool_gset - get settings that are specified in @ecmd
- * @mii: MII interface
- * @ecmd: requested ethtool_cmd
- *
- * Returns 0 for success, negative on error.
- */
-int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
-{
- struct net_device *dev = mii->dev;
- u32 advert, bmcr, lpa, nego;
- u32 advert2 = 0, bmcr2 = 0, lpa2 = 0;
-
- ecmd->supported =
- (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
- SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
- SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII);
- if (mii->supports_gmii)
- ecmd->supported |= SUPPORTED_1000baseT_Half |
- SUPPORTED_1000baseT_Full;
-
- /* only supports twisted-pair */
- ecmd->port = PORT_MII;
-
- /* only supports internal transceiver */
- ecmd->transceiver = XCVR_INTERNAL;
-
- /* this isn't fully supported at higher layers */
- ecmd->phy_address = mii->phy_id;
-
- ecmd->advertising = ADVERTISED_TP | ADVERTISED_MII;
- advert = mii->mdio_read(dev, mii->phy_id, MII_ADVERTISE);
- if (mii->supports_gmii)
- advert2 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000);
-
- if (advert & ADVERTISE_10HALF)
- ecmd->advertising |= ADVERTISED_10baseT_Half;
- if (advert & ADVERTISE_10FULL)
- ecmd->advertising |= ADVERTISED_10baseT_Full;
- if (advert & ADVERTISE_100HALF)
- ecmd->advertising |= ADVERTISED_100baseT_Half;
- if (advert & ADVERTISE_100FULL)
- ecmd->advertising |= ADVERTISED_100baseT_Full;
- if (advert2 & ADVERTISE_1000HALF)
- ecmd->advertising |= ADVERTISED_1000baseT_Half;
- if (advert2 & ADVERTISE_1000FULL)
- ecmd->advertising |= ADVERTISED_1000baseT_Full;
-
- bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
- lpa = mii->mdio_read(dev, mii->phy_id, MII_LPA);
- if (mii->supports_gmii) {
- bmcr2 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000);
- lpa2 = mii->mdio_read(dev, mii->phy_id, MII_STAT1000);
- }
- if (bmcr & BMCR_ANENABLE) {
- ecmd->advertising |= ADVERTISED_Autoneg;
- ecmd->autoneg = AUTONEG_ENABLE;
-
- nego = mii_nway_result(advert & lpa);
- if ((bmcr2 & (ADVERTISE_1000HALF | ADVERTISE_1000FULL)) &
- (lpa2 >> 2))
- ecmd->speed = SPEED_1000;
- else if (nego == LPA_100FULL || nego == LPA_100HALF)
- ecmd->speed = SPEED_100;
- else
- ecmd->speed = SPEED_10;
- if ((lpa2 & LPA_1000FULL) || nego == LPA_100FULL ||
- nego == LPA_10FULL) {
- ecmd->duplex = DUPLEX_FULL;
- mii->full_duplex = 1;
- } else {
- ecmd->duplex = DUPLEX_HALF;
- mii->full_duplex = 0;
- }
- } else {
- ecmd->autoneg = AUTONEG_DISABLE;
-
- ecmd->speed = ((bmcr & BMCR_SPEED1000 &&
- (bmcr & BMCR_SPEED100) == 0) ? SPEED_1000 :
- (bmcr & BMCR_SPEED100) ? SPEED_100 : SPEED_10);
- ecmd->duplex = (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF;
- }
-
- /* ignore maxtxpkt, maxrxpkt for now */
-
- return 0;
-}
-
-/**
- * mii_ethtool_sset - set settings that are specified in @ecmd
- * @mii: MII interface
- * @ecmd: requested ethtool_cmd
- *
- * Returns 0 for success, negative on error.
- */
-int mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
-{
- struct net_device *dev = mii->dev;
-
- if (ecmd->speed != SPEED_10 &&
- ecmd->speed != SPEED_100 &&
- ecmd->speed != SPEED_1000)
- return -EINVAL;
- if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
- return -EINVAL;
- if (ecmd->port != PORT_MII)
- return -EINVAL;
- if (ecmd->transceiver != XCVR_INTERNAL)
- return -EINVAL;
- if (ecmd->phy_address != mii->phy_id)
- return -EINVAL;
- if (ecmd->autoneg != AUTONEG_DISABLE && ecmd->autoneg != AUTONEG_ENABLE)
- return -EINVAL;
- if ((ecmd->speed == SPEED_1000) && (!mii->supports_gmii))
- return -EINVAL;
-
- /* ignore supported, maxtxpkt, maxrxpkt */
-
- if (ecmd->autoneg == AUTONEG_ENABLE) {
- u32 bmcr, advert, tmp;
- u32 advert2 = 0, tmp2 = 0;
-
- if ((ecmd->advertising & (ADVERTISED_10baseT_Half |
- ADVERTISED_10baseT_Full |
- ADVERTISED_100baseT_Half |
- ADVERTISED_100baseT_Full |
- ADVERTISED_1000baseT_Half |
- ADVERTISED_1000baseT_Full)) == 0)
- return -EINVAL;
-
- /* advertise only what has been requested */
- advert = mii->mdio_read(dev, mii->phy_id, MII_ADVERTISE);
- tmp = advert & ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
- if (mii->supports_gmii) {
- advert2 = mii->mdio_read(dev, mii->phy_id, MII_CTRL1000);
- tmp2 = advert2 & ~(ADVERTISE_1000HALF | ADVERTISE_1000FULL);
- }
- if (ecmd->advertising & ADVERTISED_10baseT_Half)
- tmp |= ADVERTISE_10HALF;
- if (ecmd->advertising & ADVERTISED_10baseT_Full)
- tmp |= ADVERTISE_10FULL;
- if (ecmd->advertising & ADVERTISED_100baseT_Half)
- tmp |= ADVERTISE_100HALF;
- if (ecmd->advertising & ADVERTISED_100baseT_Full)
- tmp |= ADVERTISE_100FULL;
- if (mii->supports_gmii) {
- if (ecmd->advertising & ADVERTISED_1000baseT_Half)
- tmp2 |= ADVERTISE_1000HALF;
- if (ecmd->advertising & ADVERTISED_1000baseT_Full)
- tmp2 |= ADVERTISE_1000FULL;
- }
- if (advert != tmp) {
- mii->mdio_write(dev, mii->phy_id, MII_ADVERTISE, tmp);
- mii->advertising = tmp;
- }
- if ((mii->supports_gmii) && (advert2 != tmp2))
- mii->mdio_write(dev, mii->phy_id, MII_CTRL1000, tmp2);
-
- /* turn on autonegotiation, and force a renegotiate */
- bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
- bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
- mii->mdio_write(dev, mii->phy_id, MII_BMCR, bmcr);
-
- mii->force_media = 0;
- } else {
- u32 bmcr, tmp;
-
- /* turn off auto negotiation, set speed and duplexity */
- bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
- tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 |
- BMCR_SPEED1000 | BMCR_FULLDPLX);
- if (ecmd->speed == SPEED_1000)
- tmp |= BMCR_SPEED1000;
- else if (ecmd->speed == SPEED_100)
- tmp |= BMCR_SPEED100;
- if (ecmd->duplex == DUPLEX_FULL) {
- tmp |= BMCR_FULLDPLX;
- mii->full_duplex = 1;
- } else
- mii->full_duplex = 0;
- if (bmcr != tmp)
- mii->mdio_write(dev, mii->phy_id, MII_BMCR, tmp);
-
- mii->force_media = 1;
- }
- return 0;
-}
-
-/**
- * mii_check_gmii_support - check if the MII supports Gb interfaces
- * @mii: the MII interface
- */
-int mii_check_gmii_support(struct mii_if_info *mii)
-{
- int reg;
-
- reg = mii->mdio_read(mii->dev, mii->phy_id, MII_BMSR);
- if (reg & BMSR_ESTATEN) {
- reg = mii->mdio_read(mii->dev, mii->phy_id, MII_ESTATUS);
- if (reg & (ESTATUS_1000_TFULL | ESTATUS_1000_THALF))
- return 1;
- }
-
- return 0;
-}
-
-/**
- * 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_nway_restart - restart NWay (autonegotiation) for this interface
- * @mii: the MII interface
- *
- * Returns 0 on success, negative on error.
- */
-int mii_nway_restart (struct mii_if_info *mii)
-{
- int bmcr;
- int r = -EINVAL;
-
- /* if autoneg is off, it's an error */
- bmcr = mii->mdio_read(mii->dev, mii->phy_id, MII_BMCR);
-
- if (bmcr & BMCR_ANENABLE) {
- bmcr |= BMCR_ANRESTART;
- mii->mdio_write(mii->dev, mii->phy_id, MII_BMCR, bmcr);
- r = 0;
- }
-
- return r;
-}
-
-/**
- * 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 = netif_carrier_ok(mii->dev);
-
- if (cur_link && !prev_link)
- netif_carrier_on(mii->dev);
- else if (prev_link && !cur_link)
- netif_carrier_off(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 = netif_carrier_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) {
- netif_carrier_off(mii->dev);
- if (ok_to_print)
- printk(KERN_INFO "%s: link down\n", mii->dev->name);
- return 0; /* duplex did not change */
- }
-
- /*
- * we have carrier, see who's on the other end
- */
- netif_carrier_on(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)
- printk(KERN_INFO "%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 */
-}
-
-/**
- * generic_mii_ioctl - main MII ioctl interface
- * @mii_if: the MII interface
- * @mii_data: MII ioctl data structure
- * @cmd: MII ioctl command
- * @duplex_chg_out: pointer to @duplex_changed status if there was no
- * ioctl error
- *
- * Returns 0 on success, negative on error.
- */
-int generic_mii_ioctl(struct mii_if_info *mii_if,
- struct mii_ioctl_data *mii_data, int cmd,
- unsigned int *duplex_chg_out)
-{
- int rc = 0;
- unsigned int duplex_changed = 0;
-
- if (duplex_chg_out)
- *duplex_chg_out = 0;
-
- mii_data->phy_id &= mii_if->phy_id_mask;
- mii_data->reg_num &= mii_if->reg_num_mask;
-
- switch(cmd) {
- case SIOCGMIIPHY:
- mii_data->phy_id = mii_if->phy_id;
- /* fall through */
-
- case SIOCGMIIREG:
- mii_data->val_out =
- mii_if->mdio_read(mii_if->dev, mii_data->phy_id,
- mii_data->reg_num);
- break;
-
- case SIOCSMIIREG: {
- u16 val = mii_data->val_in;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- if (mii_data->phy_id == mii_if->phy_id) {
- switch(mii_data->reg_num) {
- case MII_BMCR: {
- unsigned int new_duplex = 0;
- if (val & (BMCR_RESET|BMCR_ANENABLE))
- mii_if->force_media = 0;
- else
- mii_if->force_media = 1;
- if (mii_if->force_media &&
- (val & BMCR_FULLDPLX))
- new_duplex = 1;
- if (mii_if->full_duplex != new_duplex) {
- duplex_changed = 1;
- mii_if->full_duplex = new_duplex;
- }
- break;
- }
- case MII_ADVERTISE:
- mii_if->advertising = val;
- break;
- default:
- /* do nothing */
- break;
- }
- }
-
- mii_if->mdio_write(mii_if->dev, mii_data->phy_id,
- mii_data->reg_num, val);
- break;
- }
-
- default:
- rc = -EOPNOTSUPP;
- break;
- }
-
- if ((rc == 0) && (duplex_chg_out) && (duplex_changed))
- *duplex_chg_out = 1;
-
- return rc;
-}
-
-MODULE_AUTHOR ("Jeff Garzik <jgarzik@pobox.com>");
-MODULE_DESCRIPTION ("MII hardware support library");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(mii_link_ok);
-EXPORT_SYMBOL(mii_nway_restart);
-EXPORT_SYMBOL(mii_ethtool_gset);
-EXPORT_SYMBOL(mii_ethtool_sset);
-EXPORT_SYMBOL(mii_check_link);
-EXPORT_SYMBOL(mii_check_media);
-EXPORT_SYMBOL(mii_check_gmii_support);
-EXPORT_SYMBOL(generic_mii_ioctl);
-
generated by cgit v1.2.3 (git 2.46.0) at 2025-05-02 18:42:55 +0000