diff options
| author | Michael Hennerich <michael.hennerich@analog.com> | 2010-05-10 05:39:11 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-17 17:20:59 -0700 |
| commit | 53fd3f2829268703729a2db0e24c0e36360b68a2 (patch) | |
| tree | 748ffb62dd85169e42205a36c4b28efadbea2cef /drivers/net/bfin_mac.c | |
| parent | 812a9de71512e5da6f3177f7249a2448b6a4322e (diff) | |
| download | linux-53fd3f2829268703729a2db0e24c0e36360b68a2.tar.bz2 | |
netdev: bfin_mac: add support for wake-on-lan magic packets
Note that WOL works only in PM Suspend Standby Mode (Sleep Mode).
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bfin_mac.c')
| -rw-r--r-- | drivers/net/bfin_mac.c | 76 |
1 files changed, 72 insertions, 4 deletions
diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c index 5d962b86ee22..28f350711267 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; } |