From: "Rafael J. Wysocki" <rjw@sisk.pl>
The following patch adds basic suspend/resume support to the sk98lin
network driver.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
drivers/net/sk98lin/skge.c | 73 +++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 73 insertions(+)
diff -puN drivers/net/sk98lin/skge.c~sk98lin-basic-suspend-resume-support drivers/net/sk98lin/skge.c
--- devel/drivers/net/sk98lin/skge.c~sk98lin-basic-suspend-resume-support 2005-07-27 01:14:00.000000000 -0700
+++ devel-akpm/drivers/net/sk98lin/skge.c 2005-07-27 01:14:03.000000000 -0700
@@ -5133,6 +5133,75 @@ static void __devexit skge_remove_one(st
kfree(pAC);
}
+#ifdef CONFIG_PM
+static int skge_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ DEV_NET *pNet = netdev_priv(dev);
+ SK_AC *pAC = pNet->pAC;
+ struct net_device *otherdev = pAC->dev[1];
+
+ if (pNet->Up) {
+ pAC->WasIfUp[0] = SK_TRUE;
+ DoPrintInterfaceChange = SK_FALSE;
+ SkDrvDeInitAdapter(pAC, 0); /* performs SkGeClose */
+ }
+ if (otherdev != dev) {
+ pNet = netdev_priv(otherdev);
+ if (pNet->Up) {
+ pAC->WasIfUp[1] = SK_TRUE;
+ DoPrintInterfaceChange = SK_FALSE;
+ SkDrvDeInitAdapter(pAC, 1); /* performs SkGeClose */
+ }
+ }
+
+ pci_save_state(pdev);
+ pci_enable_wake(pdev, pci_choose_state(pdev, state), 0);
+ if (pAC->AllocFlag & SK_ALLOC_IRQ) {
+ free_irq(dev->irq, dev);
+ }
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+ return 0;
+}
+
+static int skge_resume(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ DEV_NET *pNet = netdev_priv(dev);
+ SK_AC *pAC = pNet->pAC;
+ int ret;
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+ pci_enable_device(pdev);
+ pci_set_master(pdev);
+ if (pAC->GIni.GIMacsFound == 2)
+ ret = request_irq(dev->irq, SkGeIsr, SA_SHIRQ, pAC->Name, dev);
+ else
+ ret = request_irq(dev->irq, SkGeIsrOnePort, SA_SHIRQ, pAC->Name, dev);
+ if (ret) {
+ printk(KERN_WARNING "sk98lin: unable to acquire IRQ %d\n", dev->irq);
+ pAC->AllocFlag &= ~SK_ALLOC_IRQ;
+ dev->irq = 0;
+ pci_disable_device(pdev);
+ return -EBUSY;
+ }
+
+ if (pAC->WasIfUp[0] == SK_TRUE) {
+ DoPrintInterfaceChange = SK_FALSE;
+ SkDrvInitAdapter(pAC, 0); /* first device */
+ }
+ if (pAC->dev[1] != dev && pAC->WasIfUp[1] == SK_TRUE) {
+ DoPrintInterfaceChange = SK_FALSE;
+ SkDrvInitAdapter(pAC, 1); /* second device */
+ }
+
+ return 0;
+}
+#endif
+
static struct pci_device_id skge_pci_tbl[] = {
{ PCI_VENDOR_ID_3COM, 0x1700, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_3COM, 0x80eb, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
@@ -5158,6 +5227,10 @@ static struct pci_driver skge_driver = {
.id_table = skge_pci_tbl,
.probe = skge_probe_one,
.remove = __devexit_p(skge_remove_one),
+#ifdef CONFIG_PM
+ .suspend = skge_suspend,
+ .resume = skge_resume,
+#endif
};
static int __init skge_init(void)
_