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authorFelipe Damasio <felipewd@terra.com.br>2002-07-26 02:02:20 -0700
committerLinus Torvalds <torvalds@penguin.transmeta.com>2002-07-26 02:02:20 -0700
commit734a3f22afd9c90ff46bc3a6ab3662e64b22bc87 (patch)
tree16ad90e8d17d30e392413e5638e5b593244a2b86
parentb6d61f9b82843a9ddc239aa2202ff8880182e3b6 (diff)
[PATCH] WoL support to the 8139cp ethernet driver
This patch add Wake-on-LAN support to the 8139cp ethernet driver. It also converts the gccism "foo: bar" to the C99 ".foo = bar" syntax.
-rw-r--r--drivers/net/8139cp.c126
1 files changed, 115 insertions, 11 deletions
diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c
index 5fa80ade4429..e5fdea9b57f7 100644
--- a/drivers/net/8139cp.c
+++ b/drivers/net/8139cp.c
@@ -18,6 +18,10 @@
See the file COPYING in this distribution for more information.
+ Contribuitors:
+
+ Wake-on-LAN support - Felipe Damasio <felipewd@terra.com.br>
+
TODO, in rough priority order:
* dev->tx_timeout
* LinkChg interrupt
@@ -32,7 +36,6 @@
h/w stats can be reset only by software reset
* Tx checksumming
* Handle netif_rx return value
- * ETHTOOL_[GS]WOL,
* Investigate using skb->priority with h/w VLAN priority
* Investigate using High Priority Tx Queue with skb->priority
* Adjust Rx FIFO threshold and Max Rx DMA burst on Rx FIFO error
@@ -79,7 +82,7 @@
/* These identify the driver base version and may not be removed. */
static char version[] __devinitdata =
-KERN_INFO DRV_NAME " 10/100 PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")\n";
+KERN_INFO DRV_NAME ": 10/100 PCI Ethernet driver v" DRV_VERSION " (" DRV_RELDATE ")\n";
MODULE_AUTHOR("Jeff Garzik <jgarzik@mandrakesoft.com>");
MODULE_DESCRIPTION("RealTek RTL-8139C+ series 10/100 PCI Ethernet driver");
@@ -87,13 +90,13 @@ MODULE_LICENSE("GPL");
static int debug = -1;
MODULE_PARM (debug, "i");
-MODULE_PARM_DESC (debug, "8139cp bitmapped message enable number");
+MODULE_PARM_DESC (debug, "8139cp: bitmapped message enable number");
/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
The RTL chips use a 64 element hash table based on the Ethernet CRC. */
static int multicast_filter_limit = 32;
MODULE_PARM (multicast_filter_limit, "i");
-MODULE_PARM_DESC (multicast_filter_limit, "8139cp maximum number of filtered multicast addresses");
+MODULE_PARM_DESC (multicast_filter_limit, "8139cp: maximum number of filtered multicast addresses");
#define PFX DRV_NAME ": "
@@ -260,12 +263,23 @@ enum {
/* Config1 register */
DriverLoaded = (1 << 5), /* Software marker, driver is loaded */
+ LWACT = (1 << 4), /* LWAKE active mode */
PMEnable = (1 << 0), /* Enable various PM features of chip */
/* Config3 register */
PARMEnable = (1 << 6), /* Enable auto-loading of PHY parms */
+ MagicPacket = (1 << 5), /* Wake up when receives a Magic Packet */
+ LinkUp = (1 << 4), /* Wake up when the cable connection is re-established */
+
+ /* Config4 register */
+ LWPTN = (1 << 1), /* LWAKE Pattern */
+ LWPME = (1 << 4), /* LANWAKE vs PMEB */
/* Config5 register */
+ BWF = (1 << 6), /* Accept Broadcast wakeup frame */
+ MWF = (1 << 5), /* Accept Multicast wakeup frame */
+ UWF = (1 << 4), /* Accept Unicast wakeup frame */
+ LANWake = (1 << 1), /* Enable LANWake signal */
PMEStatus = (1 << 0), /* PME status can be reset by PCI RST# */
};
@@ -345,6 +359,8 @@ struct cp_private {
unsigned dropping_frag : 1;
unsigned int board_type;
+ unsigned int wol_enabled : 1; /* Is Wake-on-LAN enabled? */
+
struct mii_if_info mii_if;
};
@@ -986,9 +1002,12 @@ static void cp_init_hw (struct cp_private *cp)
cpw32_f (TxConfig, IFG | (TX_DMA_BURST << TxDMAShift));
cpw8(Config1, cpr8(Config1) | DriverLoaded | PMEnable);
- if (cp->board_type == RTL8139Cp)
- cpw8(Config3, PARMEnable); /* disables magic packet and WOL */
- cpw8(Config5, cpr8(Config5) & PMEStatus); /* disables more WOL stuff */
+ /* Disable Wake-on-LAN. Can be turned on with ETHTOOL_SWOL */
+ if (cp->board_type == RTL8139Cp) {
+ cpw8(Config3, PARMEnable);
+ cp->wol_enabled = 0;
+ }
+ cpw8(Config5, cpr8(Config5) & PMEStatus);
if (cp->board_type == RTL8169)
cpw16(RxMaxSize, cp->rx_buf_sz);
@@ -1220,6 +1239,60 @@ static void mdio_write(struct net_device *dev, int phy_id, int location,
cpw16(mii_2_8139_map[location], value);
}
+/* Set the ethtool Wake-on-LAN settings */
+static void netdev_set_wol (struct cp_private *cp,
+ const struct ethtool_wolinfo *wol)
+{
+ u8 options;
+
+ options = cpr8 (Config3) & ~(LinkUp | MagicPacket);
+ /* If WOL is being disabled, no need for complexity */
+ if (wol->wolopts) {
+ if (wol->wolopts & WAKE_PHY) options |= LinkUp;
+ if (wol->wolopts & WAKE_MAGIC) options |= MagicPacket;
+ }
+
+ cpw8 (Cfg9346, Cfg9346_Unlock);
+ cpw8 (Config3, options);
+ cpw8 (Cfg9346, Cfg9346_Lock);
+
+ options = 0; /* Paranoia setting */
+ options = cpr8 (Config5) & ~(UWF | MWF | BWF);
+ /* If WOL is being disabled, no need for complexity */
+ if (wol->wolopts) {
+ if (wol->wolopts & WAKE_UCAST) options |= UWF;
+ if (wol->wolopts & WAKE_BCAST) options |= BWF;
+ if (wol->wolopts & WAKE_MCAST) options |= MWF;
+ }
+
+ cpw8 (Config5, options);
+
+ cp->wol_enabled = (wol->wolopts) ? 1 : 0;
+}
+
+/* Get the ethtool Wake-on-LAN settings */
+static void netdev_get_wol (struct cp_private *cp,
+ struct ethtool_wolinfo *wol)
+{
+ u8 options;
+
+ wol->wolopts = 0; /* Start from scratch */
+ wol->supported = WAKE_PHY | WAKE_BCAST | WAKE_MAGIC |
+ WAKE_MCAST | WAKE_UCAST;
+ /* We don't need to go on if WOL is disabled */
+ if (!cp->wol_enabled) return;
+
+ options = cpr8 (Config3);
+ if (options & LinkUp) wol->wolopts |= WAKE_PHY;
+ if (options & MagicPacket) wol->wolopts |= WAKE_MAGIC;
+
+ options = 0; /* Paranoia setting */
+ options = cpr8 (Config5);
+ if (options & UWF) wol->wolopts |= WAKE_UCAST;
+ if (options & BWF) wol->wolopts |= WAKE_BCAST;
+ if (options & MWF) wol->wolopts |= WAKE_MCAST;
+}
+
static int cp_ethtool_ioctl (struct cp_private *cp, void *useraddr)
{
u32 ethcmd;
@@ -1494,6 +1567,27 @@ err_out_gregs:
return 0;
}
+ /* get/set Wake-on-LAN settings */
+ case ETHTOOL_GWOL: {
+ struct ethtool_wolinfo wol = { ETHTOOL_GWOL };
+
+ spin_lock_irq (&cp->lock);
+ netdev_get_wol (cp, &wol);
+ spin_unlock_irq (&cp->lock);
+ return ((copy_to_user (useraddr, &wol, sizeof (wol)))? -EFAULT : 0);
+ }
+
+ case ETHTOOL_SWOL: {
+ struct ethtool_wolinfo wol;
+
+ if (copy_from_user (&wol, useraddr, sizeof (wol)))
+ return -EFAULT;
+ spin_lock_irq (&cp->lock);
+ netdev_set_wol (cp, &wol);
+ spin_unlock_irq (&cp->lock);
+ return 0;
+ }
+
default:
break;
}
@@ -1606,6 +1700,13 @@ static int __devinit read_eeprom (void *ioaddr, int location, int addr_len)
return retval;
}
+/* Put the board into D3cold state and wait for WakeUp signal */
+static void cp_set_d3_state (struct cp_private *cp)
+{
+ pci_enable_wake (cp->pdev, 0, 1); /* Enable PME# generation */
+ pci_set_power_state (cp->pdev, 3);
+}
+
static int __devinit cp_init_one (struct pci_dev *pdev,
const struct pci_device_id *ent)
{
@@ -1764,6 +1865,8 @@ static int __devinit cp_init_one (struct pci_dev *pdev,
}
pci_set_master(pdev);
+ if (cp->wol_enabled) cp_set_d3_state (cp);
+
return 0;
err_out_iomap:
@@ -1786,6 +1889,7 @@ static void __devexit cp_remove_one (struct pci_dev *pdev)
BUG();
unregister_netdev(dev);
iounmap(cp->regs);
+ if (cp->wol_enabled) pci_set_power_state (pdev, 0);
pci_release_regions(pdev);
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
@@ -1793,10 +1897,10 @@ static void __devexit cp_remove_one (struct pci_dev *pdev)
}
static struct pci_driver cp_driver = {
- name: DRV_NAME,
- id_table: cp_pci_tbl,
- probe: cp_init_one,
- remove: __devexit_p(cp_remove_one),
+ .name = DRV_NAME,
+ .id_table = cp_pci_tbl,
+ .probe = cp_init_one,
+ .remove = __devexit_p(cp_remove_one),
};
static int __init cp_init (void)