From bc8a8387ba57db2275e717c19838a8d5a404c270 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Tue, 6 Mar 2007 02:41:53 -0800 Subject: [PATCH] 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 Cc: Valerie Henson Cc: Jeff Garzik Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- drivers/net/tulip/dmfe.c | 52 +++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 49 insertions(+), 3 deletions(-) diff --git a/drivers/net/tulip/dmfe.c b/drivers/net/tulip/dmfe.c index b3a64ca..e3a0779 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"); -- 2.7.4