ar71xx: detect link on LAN ports

[openwrt.git] / target / linux / ar71xx / files / drivers / net / ag71xx / ag71xx_ar7240.c

diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c
index 1bc7f58..d84cc81 100644 (file)
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c
@@ -828,6 +828,30 @@ static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
        return as;
 }
 
+static void link_function(struct work_struct *work) {
+       struct ag71xx *ag = container_of(work, struct ag71xx, link_work.work);
+       unsigned long flags;
+       int i;
+       int status = 0;
+
+       for (i = 0; i < 4; i++) {
+               int link = ar7240sw_phy_read(ag->mii_bus, i, MII_BMSR);
+               if(link & BMSR_LSTATUS) {
+                       status = 1;
+                       break;
+               }
+       }
+
+       spin_lock_irqsave(&ag->lock, flags);
+       if(status != ag->link) {
+               ag->link = status;
+               ag71xx_link_adjust(ag);
+       }
+       spin_unlock_irqrestore(&ag->lock, flags);
+
+       schedule_delayed_work(&ag->link_work, HZ / 2);
+}
+
 void ag71xx_ar7240_start(struct ag71xx *ag)
 {
        struct ar7240sw *as = ag->phy_priv;
@@ -836,15 +860,17 @@ void ag71xx_ar7240_start(struct ag71xx *ag)
        ar7240sw_setup(as);
 
        ag->speed = SPEED_1000;
-       ag->link = 1;
        ag->duplex = 1;
 
        ar7240_set_addr(as, ag->dev->dev_addr);
        ar7240_hw_apply(&as->swdev);
+
+       schedule_delayed_work(&ag->link_work, HZ / 10);
 }
 
 void ag71xx_ar7240_stop(struct ag71xx *ag)
 {
+       cancel_delayed_work_sync(&ag->link_work);
 }
 
 int __devinit ag71xx_ar7240_init(struct ag71xx *ag)
@@ -858,6 +884,8 @@ int __devinit ag71xx_ar7240_init(struct ag71xx *ag)
        ag->phy_priv = as;
        ar7240sw_reset(as);
 
+       INIT_DELAYED_WORK(&ag->link_work, link_function);
+
        return 0;
 }