+#ifdef CONFIG_PM
+/* This function is called on PCI suspend */
+static int twa_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
+
+ printk(KERN_WARNING "3w-9xxx: Suspending host %d.\n", tw_dev->host->host_no);
+
+ TW_DISABLE_INTERRUPTS(tw_dev);
+ free_irq(tw_dev->tw_pci_dev->irq, tw_dev);
+
+ if (test_bit(TW_USING_MSI, &tw_dev->flags))
+ pci_disable_msi(pdev);
+
+ /* Tell the card we are shutting down */
+ if (twa_initconnection(tw_dev, 1, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL, NULL)) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x38, "Connection shutdown failed during suspend");
+ } else {
+ printk(KERN_WARNING "3w-9xxx: Suspend complete.\n");
+ }
+ TW_CLEAR_ALL_INTERRUPTS(tw_dev);
+
+ pci_save_state(pdev);
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+ return 0;
+} /* End twa_suspend() */
+
+/* This function is called on PCI resume */
+static int twa_resume(struct pci_dev *pdev)
+{
+ int retval = 0;
+ struct Scsi_Host *host = pci_get_drvdata(pdev);
+ TW_Device_Extension *tw_dev = (TW_Device_Extension *)host->hostdata;
+
+ printk(KERN_WARNING "3w-9xxx: Resuming host %d.\n", tw_dev->host->host_no);
+ pci_set_power_state(pdev, PCI_D0);
+ pci_enable_wake(pdev, PCI_D0, 0);
+ pci_restore_state(pdev);
+
+ retval = pci_enable_device(pdev);
+ if (retval) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x39, "Enable device failed during resume");
+ return retval;
+ }
+
+ pci_set_master(pdev);
+ pci_try_set_mwi(pdev);
+
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))
+ || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
+ || pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
+ TW_PRINTK(host, TW_DRIVER, 0x40, "Failed to set dma mask during resume");
+ retval = -ENODEV;
+ goto out_disable_device;
+ }
+
+ /* Initialize the card */
+ if (twa_reset_sequence(tw_dev, 0)) {
+ retval = -ENODEV;
+ goto out_disable_device;
+ }
+
+ /* Now setup the interrupt handler */
+ retval = request_irq(pdev->irq, twa_interrupt, IRQF_SHARED, "3w-9xxx", tw_dev);
+ if (retval) {
+ TW_PRINTK(tw_dev->host, TW_DRIVER, 0x42, "Error requesting IRQ during resume");
+ retval = -ENODEV;
+ goto out_disable_device;
+ }
+
+ /* Now enable MSI if enabled */
+ if (test_bit(TW_USING_MSI, &tw_dev->flags))
+ pci_enable_msi(pdev);
+
+ /* Re-enable interrupts on the card */
+ TW_ENABLE_AND_CLEAR_INTERRUPTS(tw_dev);
+
+ printk(KERN_WARNING "3w-9xxx: Resume complete.\n");
+ return 0;
+
+out_disable_device:
+ scsi_remove_host(host);
+ pci_disable_device(pdev);
+
+ return retval;
+} /* End twa_resume() */
+#endif
+