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dmfe: add support for suspend/resume

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This adds support for suspend resume

[akpm@linux-foundation.org: fix CONFIG_PM=n, coding style]
Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Valerie Henson <val_henson@linux.intel.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Maxim Levitsky 2007-03-06 02:41:53 -08:00 committed by Jeff Garzik
parent b3df0da886
commit bc8a8387ba
1 changed files with 49 additions and 3 deletions
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52
drivers/net/tulip/dmfe.c
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@ -55,9 +55,6 @@
TODO
Implement pci_driver::suspend() and pci_driver::resume()
power management methods.
Check on 64 bit boxes.
Check and fix on big endian boxes.
@ -2050,11 +2047,60 @@ static struct pci_device_id dmfe_pci_tbl[] = {
MODULE_DEVICE_TABLE(pci, dmfe_pci_tbl);
#ifdef CONFIG_PM
static int dmfe_suspend(struct pci_dev *pci_dev, pm_message_t state)
{
struct net_device *dev = pci_get_drvdata(pci_dev);
struct dmfe_board_info *db = netdev_priv(dev);
/* Disable upper layer interface */
netif_device_detach(dev);
/* Disable Tx/Rx */
db->cr6_data &= ~(CR6_RXSC | CR6_TXSC);
update_cr6(db->cr6_data, dev->base_addr);
/* Disable Interrupt */
outl(0, dev->base_addr + DCR7);
outl(inl (dev->base_addr + DCR5), dev->base_addr + DCR5);
/* Fre RX buffers */
dmfe_free_rxbuffer(db);
/* Power down device*/
pci_set_power_state(pci_dev, pci_choose_state (pci_dev,state));
pci_save_state(pci_dev);
return 0;
}
static int dmfe_resume(struct pci_dev *pci_dev)
{
struct net_device *dev = pci_get_drvdata(pci_dev);
pci_restore_state(pci_dev);
pci_set_power_state(pci_dev, PCI_D0);
/* Re-initilize DM910X board */
dmfe_init_dm910x(dev);
/* Restart upper layer interface */
netif_device_attach(dev);
return 0;
}
#else
#define dmfe_suspend NULL
#define dmfe_resume NULL
#endif
static struct pci_driver dmfe_driver = {
.name = "dmfe",
.id_table = dmfe_pci_tbl,
.probe = dmfe_init_one,
.remove = __devexit_p(dmfe_remove_one),
.suspend = dmfe_suspend,
.resume = dmfe_resume
};
MODULE_AUTHOR("Sten Wang, sten_wang@davicom.com.tw");