Re: [PATCH] [NET] dmfe : number of fixes and features

Levitsky Maxim
2007-02-07T18:00:51Z

Subject: [PATCH] [NET] [004] dmfe : Add suspend/resume support

Adds support for suspend/resume

---

--- linux-2.6.20-mod/drivers/net/tulip/dmfe.c 2007-02-07 18:46:13.000000000 +0200
+++ linux-2.6.20-test/drivers/net/tulip/dmfe.c 2007-02-07 18:50:52.000000000 +0200
@@ -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.

@@ -2027,11 +2024,59 @@ static struct pci_device_id dmfe_pci_tbl
MODULE_DEVICE_TABLE(pci, dmfe_pci_tbl);

+
+static int dmfe_suspend(struct pci_dev *pci_dev, pm_message_t state)
+{
+ u32 tmp;
+
+ 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);
+ u32 tmp;
+
+ 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;
+}
+
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");

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