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DM9000: Use delayed work to update MII PHY state 

Periodically check the MII PHY status to ensure that the
network layer's link status is updated and the user informed
of any changes.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Ben Dooks 2008-05-08 11:36:42 +01:00 committed by Jeff Garzik
parent 37d5dca6af
commit 8f5bf5f25c
1 changed files with 26 additions and 0 deletions
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26
drivers/net/dm9000.c
View File

@ -117,6 +117,9 @@ typedef struct board_info {
struct mutex addr_lock; /* phy and eeprom access lock */
struct delayed_work phy_poll;
struct net_device *ndev;
spinlock_t lock;
struct mii_if_info mii;
@ -297,6 +300,10 @@ static void dm9000_set_io(struct board_info *db, int byte_width)
}
}
static void dm9000_schedule_poll(board_info_t *db)
{
schedule_delayed_work(&db->phy_poll, HZ * 2);
}
/* Our watchdog timed out. Called by the networking layer */
static void dm9000_timeout(struct net_device *dev)
@ -465,6 +472,17 @@ static const struct ethtool_ops dm9000_ethtool_ops = {
.set_eeprom = dm9000_set_eeprom,
};
static void
dm9000_poll_work(struct work_struct *w)
{
struct delayed_work *dw = container_of(w, struct delayed_work, work);
board_info_t *db = container_of(dw, board_info_t, phy_poll);
mii_check_media(&db->mii, netif_msg_link(db), 0);
if (netif_running(db->ndev))
dm9000_schedule_poll(db);
}
/* dm9000_release_board
*
@ -532,10 +550,14 @@ dm9000_probe(struct platform_device *pdev)
memset(db, 0, sizeof (*db));
db->dev = &pdev->dev;
db->ndev = ndev;
spin_lock_init(&db->lock);
mutex_init(&db->addr_lock);
INIT_DELAYED_WORK(&db->phy_poll, dm9000_poll_work);
if (pdev->num_resources < 2) {
ret = -ENODEV;
goto out;
@ -761,6 +783,8 @@ dm9000_open(struct net_device *dev)
mii_check_media(&db->mii, netif_msg_link(db), 1);
netif_start_queue(dev);
dm9000_schedule_poll(db);
return 0;
}
@ -879,6 +903,8 @@ dm9000_stop(struct net_device *ndev)
if (netif_msg_ifdown(db))
dev_dbg(db->dev, "shutting down %s\n", ndev->name);
cancel_delayed_work(&db->phy_poll);
netif_stop_queue(ndev);
netif_carrier_off(ndev);