From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxim Levitsky Subject: [PATCH 2.6.20 4/5] dmfe: Add support for suspend/resume Date: Thu, 8 Feb 2007 23:15:07 +0200 Message-ID: <200702082315.07400.maximlevitsky@gmail.com> References: <200702082305.26735.maximlevitsky@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Cc: linux-kernel@vger.kernel.org To: netdev@vger.kernel.org Return-path: Received: from nf-out-0910.google.com ([64.233.182.189]:39734 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1423405AbXBHVST convert rfc822-to-8bit (ORCPT ); Thu, 8 Feb 2007 16:18:19 -0500 Received: by nf-out-0910.google.com with SMTP id o25so989776nfa for ; Thu, 08 Feb 2007 13:18:18 -0800 (PST) In-Reply-To: <200702082305.26735.maximlevitsky@gmail.com> Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org >>From Maxim Levitsky Subject: [PATCH 2.6.20 4/5] dmfe: Add support for suspend/resume This adds support for suspend resume Signed-off-by: Maxim Levitsky --- --- linux-2.6.20-mod/drivers/net/tulip/dmfe.c 2007-02-08 21:49:19.000000000 +0200 +++ linux-2.6.20-test/drivers/net/tulip/dmfe.c 2007-02-08 22:02:03.000000000 +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. @@ -2054,11 +2051,56 @@ 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) +{ + 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; +} + 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");