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authorMaxim Levitsky <maximlevitsky@gmail.com>2007-03-06 02:41:53 -0800
committerJeff Garzik <jeff@garzik.org>2007-04-28 11:00:57 -0400
commitbc8a8387ba57db2275e717c19838a8d5a404c270 (patch)
tree85ab2d2d2b5786f006c5062b46015faaebc746a7 /drivers/net/tulip/dmfe.c
parentb3df0da886ffdb3e70c3197f589e959e5f8c9c04 (diff)
dmfe: add support for suspend/resume
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>
Diffstat (limited to 'drivers/net/tulip/dmfe.c')
-rw-r--r--drivers/net/tulip/dmfe.c52
1 files changed, 49 insertions, 3 deletions
diff --git a/drivers/net/tulip/dmfe.c b/drivers/net/tulip/dmfe.c
index b3a64ca9863..e3a077977e4 100644
--- a/drivers/net/tulip/dmfe.c
+++ b/drivers/net/tulip/dmfe.c
@@ -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");