diff options
| author | Dale Farnsworth <dale@farnsworth.org> | 2005-08-23 10:30:29 -0700 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-09-14 08:46:21 -0400 |
| commit | 43ec6e95e4d8a73afc2405a44b955c380aeeb65a (patch) | |
| tree | e42008bc2e42ea42498229360f995d39357d6c62 /drivers/net/mii.c | |
| parent | 7a700fafbed55eee2cc766fbe47cf68e229da281 (diff) | |
| download | lwn-43ec6e95e4d8a73afc2405a44b955c380aeeb65a.tar.gz lwn-43ec6e95e4d8a73afc2405a44b955c380aeeb65a.zip | |
[PATCH] mii: Add test for GigE support
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat (limited to 'drivers/net/mii.c')
| -rw-r--r-- | drivers/net/mii.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/mii.c b/drivers/net/mii.c index c33cb3dc942b..e42aa797f08b 100644 --- a/drivers/net/mii.c +++ b/drivers/net/mii.c @@ -207,6 +207,20 @@ int mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd) return 0; } +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; +} + int mii_link_ok (struct mii_if_info *mii) { /* first, a dummy read, needed to latch some MII phys */ @@ -394,5 +408,6 @@ 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); |