dmfe: add support for Wake on lan

Add support for WOL on Magic Packet and on link change

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Valerie Henson <val_henson@linux.intel.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 64 insertions, 2 deletions

diff --git a/drivers/net/tulip/dmfe.c b/drivers/net/tulip/dmfe.c
index e3a077977e4c..4ed67ff0e81e 100644
--- a/drivers/net/tulip/dmfe.c
+++ b/drivers/net/tulip/dmfe.c
@@ -122,6 +122,11 @@
 #define DM9801_NOISE_FLOOR 8
 #define DM9802_NOISE_FLOOR 5
 
+#define DMFE_WOL_LINKCHANGE     0x20000000
+#define DMFE_WOL_SAMPLEPACKET   0x10000000
+#define DMFE_WOL_MAGICPACKET    0x08000000
+
+
 #define DMFE_10MHF      0
 #define DMFE_100MHF     1
 #define DMFE_10MFD      4
@@ -248,6 +253,7 @@ struct dmfe_board_info {
         u8 wait_reset;                  /* Hardware failed, need to reset */
         u8 dm910x_chk_mode;             /* Operating mode check */
         u8 first_in_callback;           /* Flag to record state */
+        u8 wol_mode;                    /* user WOL settings */
         struct timer_list timer;
 
         /* System defined statistic counter */
@@ -428,6 +434,7 @@ static int __devinit dmfe_init_one (struct pci_dev *pdev,
         db->chip_id = ent->driver_data;
         db->ioaddr = pci_resource_start(pdev, 0);
         db->chip_revision = dev_rev;
+        db->wol_mode = 0;
 
         db->pdev = pdev;
 
@@ -1062,7 +1069,11 @@ static void dmfe_set_filter_mode(struct DEVICE * dev)
         spin_unlock_irqrestore(&db->lock, flags);
 }
 
-static void netdev_get_drvinfo(struct net_device *dev,
+/*
+ *      Ethtool interace
+ */
+
+static void dmfe_ethtool_get_drvinfo(struct net_device *dev,
                                struct ethtool_drvinfo *info)
 {
         struct dmfe_board_info *np = netdev_priv(dev);
@@ -1076,9 +1087,35 @@ static void netdev_get_drvinfo(struct net_device *dev,
                         dev->base_addr, dev->irq);
 }
 
+static int dmfe_ethtool_set_wol(struct net_device *dev,
+                                struct ethtool_wolinfo *wolinfo)
+{
+        struct dmfe_board_info *db = netdev_priv(dev);
+
+        if (wolinfo->wolopts & (WAKE_UCAST | WAKE_MCAST | WAKE_BCAST |
+                                WAKE_ARP | WAKE_MAGICSECURE))
+                   return -EOPNOTSUPP;
+
+        db->wol_mode = wolinfo->wolopts;
+        return 0;
+}
+
+static void dmfe_ethtool_get_wol(struct net_device *dev,
+                                 struct ethtool_wolinfo *wolinfo)
+{
+        struct dmfe_board_info *db = netdev_priv(dev);
+
+        wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
+        wolinfo->wolopts = db->wol_mode;
+        return;
+}
+
+
 static const struct ethtool_ops netdev_ethtool_ops = {
-        .get_drvinfo            = netdev_get_drvinfo,
+        .get_drvinfo            = dmfe_ethtool_get_drvinfo,
         .get_link               = ethtool_op_get_link,
+        .set_wol                = dmfe_ethtool_set_wol,
+        .get_wol                = dmfe_ethtool_get_wol,
 };
 
 /*
@@ -2052,6 +2089,7 @@ static int dmfe_suspend(struct pci_dev *pci_dev, pm_message_t state)
 {
         struct net_device *dev = pci_get_drvdata(pci_dev);
         struct dmfe_board_info *db = netdev_priv(dev);
+        u32 tmp;
 
         /* Disable upper layer interface */
         netif_device_detach(dev);
@@ -2067,6 +2105,20 @@ static int dmfe_suspend(struct pci_dev *pci_dev, pm_message_t state)
         /* Fre RX buffers */
         dmfe_free_rxbuffer(db);
 
+        /* Enable WOL */
+        pci_read_config_dword(pci_dev, 0x40, &tmp);
+        tmp &= ~(DMFE_WOL_LINKCHANGE|DMFE_WOL_MAGICPACKET);
+
+        if (db->wol_mode & WAKE_PHY)
+                tmp |= DMFE_WOL_LINKCHANGE;
+        if (db->wol_mode & WAKE_MAGIC)
+                tmp |= DMFE_WOL_MAGICPACKET;
+
+        pci_write_config_dword(pci_dev, 0x40, tmp);
+
+        pci_enable_wake(pci_dev, PCI_D3hot, 1);
+        pci_enable_wake(pci_dev, PCI_D3cold, 1);
+
         /* Power down device*/
         pci_set_power_state(pci_dev, pci_choose_state (pci_dev,state));
         pci_save_state(pci_dev);
@@ -2077,6 +2129,7 @@ static int dmfe_suspend(struct pci_dev *pci_dev, pm_message_t state)
 static int dmfe_resume(struct pci_dev *pci_dev)
 {
         struct net_device *dev = pci_get_drvdata(pci_dev);
+        u32 tmp;
 
         pci_restore_state(pci_dev);
         pci_set_power_state(pci_dev, PCI_D0);
@@ -2084,6 +2137,15 @@ static int dmfe_resume(struct pci_dev *pci_dev)
         /* Re-initilize DM910X board */
         dmfe_init_dm910x(dev);
 
+        /* Disable WOL */
+        pci_read_config_dword(pci_dev, 0x40, &tmp);
+
+        tmp &= ~(DMFE_WOL_LINKCHANGE | DMFE_WOL_MAGICPACKET);
+        pci_write_config_dword(pci_dev, 0x40, tmp);
+
+        pci_enable_wake(pci_dev, PCI_D3hot, 0);
+        pci_enable_wake(pci_dev, PCI_D3cold, 0);
+
         /* Restart upper layer interface */
         netif_device_attach(dev);