diff options
| -rw-r--r-- | drivers/net/bfin_mac.c | 76 | ||||
| -rw-r--r-- | drivers/net/bfin_mac.h | 3 |
2 files changed, 75 insertions, 4 deletions
diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c index 5d962b86ee2..28f35071126 100644 --- a/drivers/net/bfin_mac.c +++ b/drivers/net/bfin_mac.c @@ -464,6 +464,14 @@ static int mii_probe(struct net_device *dev) * Ethtool support */ +/* + * interrupt routine for magic packet wakeup + */ +static irqreturn_t bfin_mac_wake_interrupt(int irq, void *dev_id) +{ + return IRQ_HANDLED; +} + static int bfin_mac_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd) { @@ -498,11 +506,57 @@ static void bfin_mac_ethtool_getdrvinfo(struct net_device *dev, strcpy(info->bus_info, dev_name(&dev->dev)); } +static void bfin_mac_ethtool_getwol(struct net_device *dev, + struct ethtool_wolinfo *wolinfo) +{ + struct bfin_mac_local *lp = netdev_priv(dev); + + wolinfo->supported = WAKE_MAGIC; + wolinfo->wolopts = lp->wol; +} + +static int bfin_mac_ethtool_setwol(struct net_device *dev, + struct ethtool_wolinfo *wolinfo) +{ + struct bfin_mac_local *lp = netdev_priv(dev); + int rc; + + if (wolinfo->wolopts & (WAKE_MAGICSECURE | + WAKE_UCAST | + WAKE_MCAST | + WAKE_BCAST | + WAKE_ARP)) + return -EOPNOTSUPP; + + lp->wol = wolinfo->wolopts; + + if (lp->wol && !lp->irq_wake_requested) { + /* register wake irq handler */ + rc = request_irq(IRQ_MAC_WAKEDET, bfin_mac_wake_interrupt, + IRQF_DISABLED, "EMAC_WAKE", dev); + if (rc) + return rc; + lp->irq_wake_requested = true; + } + + if (!lp->wol && lp->irq_wake_requested) { + free_irq(IRQ_MAC_WAKEDET, dev); + lp->irq_wake_requested = false; + } + + /* Make sure the PHY driver doesn't suspend */ + device_init_wakeup(&dev->dev, lp->wol); + + return 0; +} + static const struct ethtool_ops bfin_mac_ethtool_ops = { .get_settings = bfin_mac_ethtool_getsettings, .set_settings = bfin_mac_ethtool_setsettings, .get_link = ethtool_op_get_link, .get_drvinfo = bfin_mac_ethtool_getdrvinfo, + .get_wol = bfin_mac_ethtool_getwol, + .set_wol = bfin_mac_ethtool_setwol, }; /**************************************************************************/ @@ -1474,9 +1528,16 @@ static int __devexit bfin_mac_remove(struct platform_device *pdev) static int bfin_mac_suspend(struct platform_device *pdev, pm_message_t mesg) { struct net_device *net_dev = platform_get_drvdata(pdev); + struct bfin_mac_local *lp = netdev_priv(net_dev); - if (netif_running(net_dev)) - bfin_mac_close(net_dev); + if (lp->wol) { + bfin_write_EMAC_OPMODE((bfin_read_EMAC_OPMODE() & ~TE) | RE); + bfin_write_EMAC_WKUP_CTL(MPKE); + enable_irq_wake(IRQ_MAC_WAKEDET); + } else { + if (netif_running(net_dev)) + bfin_mac_close(net_dev); + } return 0; } @@ -1484,9 +1545,16 @@ static int bfin_mac_suspend(struct platform_device *pdev, pm_message_t mesg) static int bfin_mac_resume(struct platform_device *pdev) { struct net_device *net_dev = platform_get_drvdata(pdev); + struct bfin_mac_local *lp = netdev_priv(net_dev); - if (netif_running(net_dev)) - bfin_mac_open(net_dev); + if (lp->wol) { + bfin_write_EMAC_OPMODE(bfin_read_EMAC_OPMODE() | TE); + bfin_write_EMAC_WKUP_CTL(0); + disable_irq_wake(IRQ_MAC_WAKEDET); + } else { + if (netif_running(net_dev)) + bfin_mac_open(net_dev); + } return 0; } diff --git a/drivers/net/bfin_mac.h b/drivers/net/bfin_mac.h index 87c454fc031..1ae7b82ceee 100644 --- a/drivers/net/bfin_mac.h +++ b/drivers/net/bfin_mac.h @@ -66,6 +66,9 @@ struct bfin_mac_local { unsigned char Mac[6]; /* MAC address of the board */ spinlock_t lock; + int wol; /* Wake On Lan */ + int irq_wake_requested; + /* MII and PHY stuffs */ int old_link; /* used by bf537_adjust_link */ int old_speed; |