From: Adam Belay <ambx1@neo.rr.com>
This patch allows the tulip driver to suspend and resume properly. It was
originally written by Karsten Keil and then modified by Adam Belay.
Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Adam Belay <abelay@novell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
drivers/net/tulip/tulip_core.c | 43 +++++++++++++++++++++++++++++------------
1 files changed, 31 insertions(+), 12 deletions(-)
diff -puN drivers/net/tulip/tulip_core.c~fix-tulip-suspend-resume-2 drivers/net/tulip/tulip_core.c
--- 25/drivers/net/tulip/tulip_core.c~fix-tulip-suspend-resume-2 2005-06-08 22:32:28.000000000 -0700
+++ 25-akpm/drivers/net/tulip/tulip_core.c 2005-06-08 22:32:28.000000000 -0700
@@ -1756,11 +1756,19 @@ static int tulip_suspend (struct pci_dev
{
struct net_device *dev = pci_get_drvdata(pdev);
- if (dev && netif_running (dev) && netif_device_present (dev)) {
- netif_device_detach (dev);
- tulip_down (dev);
- /* pci_power_off(pdev, -1); */
- }
+ if (!dev)
+ return -EINVAL;
+
+ if (netif_running(dev))
+ tulip_down(dev);
+
+ netif_device_detach(dev);
+ free_irq(dev->irq, dev);
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
return 0;
}
@@ -1768,15 +1776,26 @@ static int tulip_suspend (struct pci_dev
static int tulip_resume(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
+ int retval;
- if (dev && netif_running (dev) && !netif_device_present (dev)) {
-#if 1
- pci_enable_device (pdev);
-#endif
- /* pci_power_on(pdev); */
- tulip_up (dev);
- netif_device_attach (dev);
+ if (!dev)
+ return -EINVAL;
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+
+ pci_enable_device(pdev);
+
+ if ((retval = request_irq(dev->irq, &tulip_interrupt, SA_SHIRQ, dev->name, dev))) {
+ printk (KERN_ERR "tulip: request_irq failed in resume\n");
+ return retval;
}
+
+ netif_device_attach(dev);
+
+ if (netif_running(dev))
+ tulip_up(dev);
+
return 0;
}
_