Messages in this thread Patch in this message | | | From | "Rafael J. Wysocki" <> | Subject | Re: [PATCH] 2.6.13-rc3-git5: fix Bug #4416 (2/2) | Date | Tue, 26 Jul 2005 12:54:04 +0200 |
| |
The following patch adds basic suspend/resume support to the sk98lin network driver.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
--- linux-2.6.13-rc3-git5/drivers/net/sk98lin/skge.c 2005-07-23 19:26:29.000000000 +0200 +++ patched/drivers/net/sk98lin/skge.c 2005-07-25 18:17:57.000000000 +0200 @@ -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 +5227,8 @@ static struct pci_driver skge_driver = { .id_table = skge_pci_tbl, .probe = skge_probe_one, .remove = __devexit_p(skge_remove_one), + .suspend = skge_suspend, + .resume = skge_resume, }; static int __init skge_init(void) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |