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staging: et131x: Add pci suspend & resume functions

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Added basic suspend & resume functionality.
Tested on an et1310 device, and putting Fedora15 host in and out of
hibernation successfully.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Mark Einon 2011-10-01 11:14:13 +01:00 committed by Greg Kroah-Hartman
parent 1ce664dc01
commit 25e1c2780c
3 changed files with 45 additions and 3 deletions
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1
drivers/staging/et131x/README
View File

@ -10,7 +10,6 @@ driver as they did not build properly at the time.
TODO:
- add_timer call in et131x_netdev.c is correct?
- Add power saving functionality (suspend, sleep, resume)
- Implement a few more kernel Parameter (set mac )
Please send patches to:

2
drivers/staging/et131x/et131x.h
View File

@ -82,6 +82,8 @@ void et1310_setup_device_for_multicast(struct et131x_adapter *adapter);
void et1310_setup_device_for_unicast(struct et131x_adapter *adapter);
/* et131x_netdev.c */
int et131x_open(struct net_device *netdev);
int et131x_close(struct net_device *netdev);
struct net_device *et131x_device_alloc(void);
void et131x_enable_txrx(struct net_device *netdev);
void et131x_disable_txrx(struct net_device *netdev);

45
drivers/staging/et131x/et131x_initpci.c
View File

@ -869,6 +869,45 @@ static void __devexit et131x_pci_remove(struct pci_dev *pdev)
pci_disable_device(pdev);
}
static int et131x_pci_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct net_device *netdev = pci_get_drvdata(pdev);
if (!netif_running(netdev))
return 0;
et131x_close(netdev);
netif_device_detach(netdev);
pci_save_state(pdev);
pci_set_power_state(pdev, pci_choose_state(pdev, state));
return 0;
}
static int et131x_pci_resume(struct pci_dev *pdev)
{
struct net_device *netdev = pci_get_drvdata(pdev);
int err = 0;
if (!netif_running(netdev))
return 0;
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
err = et131x_open(netdev);
if (err) {
dev_err(&pdev->dev, "Can't resume interface!\n");
goto out;
}
netif_device_attach(netdev);
out:
return err;
}
static struct pci_device_id et131x_pci_table[] __devinitdata = {
{ET131X_PCI_VENDOR_ID, ET131X_PCI_DEVICE_ID_GIG, PCI_ANY_ID,
PCI_ANY_ID, 0, 0, 0UL},
@ -884,8 +923,10 @@ static struct pci_driver et131x_driver = {
.id_table = et131x_pci_table,
.probe = et131x_pci_setup,
.remove = __devexit_p(et131x_pci_remove),
.suspend = NULL, /* et131x_pci_suspend */
.resume = NULL, /* et131x_pci_resume */
#ifdef CONFIG_PM
.suspend = et131x_pci_suspend,
.resume = et131x_pci_resume,
#endif
};
/**