1 files changed, 264 insertions, 0 deletions
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
new file mode 100644
index 00000000000..b611582e6bc
--- /dev/null
+++ b/drivers/usb/host/ohci-pci.c
@@ -0,0 +1,264 @@
+/*
+ * OHCI HCD (Host Controller Driver) for USB.
+ *
+ * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
+ * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
+ * 
+ * [ Initialisation is based on Linus'  ]
+ * [ uhci code and gregs ohci fragments ]
+ * [ (C) Copyright 1999 Linus Torvalds  ]
+ * [ (C) Copyright 1999 Gregory P. Smith]
+ * 
+ * PCI Bus Glue
+ *
+ * This file is licenced under the GPL.
+ */
+ 
+#ifdef CONFIG_PMAC_PBOOK
+#include <asm/machdep.h>
+#include <asm/pmac_feature.h>
+#include <asm/pci-bridge.h>
+#include <asm/prom.h>
+#ifndef CONFIG_PM
+#	define CONFIG_PM
+#endif
+#endif
+
+#ifndef CONFIG_PCI
+#error "This file is PCI bus glue.  CONFIG_PCI must be defined."
+#endif
+
+/*-------------------------------------------------------------------------*/
+
+static int
+ohci_pci_reset (struct usb_hcd *hcd)
+{
+	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);
+
+	ohci_hcd_init (ohci);
+	return ohci_init (ohci);
+}
+
+static int __devinit
+ohci_pci_start (struct usb_hcd *hcd)
+{
+	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);
+	int		ret;
+
+	if(hcd->self.controller && hcd->self.controller->bus == &pci_bus_type) {
+		struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
+
+		/* AMD 756, for most chips (early revs), corrupts register
+		 * values on read ... so enable the vendor workaround.
+		 */
+		if (pdev->vendor == PCI_VENDOR_ID_AMD
+				&& pdev->device == 0x740c) {
+			ohci->flags = OHCI_QUIRK_AMD756;
+			ohci_info (ohci, "AMD756 erratum 4 workaround\n");
+			// also somewhat erratum 10 (suspend/resume issues)
+		}
+
+		/* FIXME for some of the early AMD 760 southbridges, OHCI
+		 * won't work at all.  blacklist them.
+		 */
+
+		/* Apple's OHCI driver has a lot of bizarre workarounds
+		 * for this chip.  Evidently control and bulk lists
+		 * can get confused.  (B&W G3 models, and ...)
+		 */
+		else if (pdev->vendor == PCI_VENDOR_ID_OPTI
+				&& pdev->device == 0xc861) {
+			ohci_info (ohci,
+				"WARNING: OPTi workarounds unavailable\n");
+		}
+
+		/* Check for NSC87560. We have to look at the bridge (fn1) to
+		 * identify the USB (fn2). This quirk might apply to more or
+		 * even all NSC stuff.
+		 */
+		else if (pdev->vendor == PCI_VENDOR_ID_NS) {
+			struct pci_dev	*b;
+
+			b  = pci_find_slot (pdev->bus->number,
+					PCI_DEVFN (PCI_SLOT (pdev->devfn), 1));
+			if (b && b->device == PCI_DEVICE_ID_NS_87560_LIO
+					&& b->vendor == PCI_VENDOR_ID_NS) {
+				ohci->flags |= OHCI_QUIRK_SUPERIO;
+				ohci_info (ohci, "Using NSC SuperIO setup\n");
+			}
+		}
+	}
+
+	/* NOTE: there may have already been a first reset, to
+	 * keep bios/smm irqs from making trouble
+	 */
+	if ((ret = ohci_run (ohci)) < 0) {
+		ohci_err (ohci, "can't start\n");
+		ohci_stop (hcd);
+		return ret;
+	}
+	return 0;
+}
+
+#ifdef	CONFIG_PM
+
+static int ohci_pci_suspend (struct usb_hcd *hcd, u32 state)
+{
+	struct ohci_hcd		*ohci = hcd_to_ohci (hcd);
+
+	/* suspend root hub, hoping it keeps power during suspend */
+	if (time_before (jiffies, ohci->next_statechange))
+		msleep (100);
+
+#ifdef	CONFIG_USB_SUSPEND
+	(void) usb_suspend_device (hcd->self.root_hub, state);
+#else
+	usb_lock_device (hcd->self.root_hub);
+	(void) ohci_hub_suspend (hcd);
+	usb_unlock_device (hcd->self.root_hub);
+#endif
+
+	/* let things settle down a bit */
+	msleep (100);
+	
+#ifdef CONFIG_PMAC_PBOOK
+	if (_machine == _MACH_Pmac) {
+	   	struct device_node	*of_node;
+ 
+		/* Disable USB PAD & cell clock */
+		of_node = pci_device_to_OF_node (to_pci_dev(hcd->self.controller));
+		if (of_node)
+			pmac_call_feature(PMAC_FTR_USB_ENABLE, of_node, 0, 0);
+	}
+#endif /* CONFIG_PMAC_PBOOK */
+	return 0;
+}
+
+
+static int ohci_pci_resume (struct usb_hcd *hcd)
+{
+	struct ohci_hcd		*ohci = hcd_to_ohci (hcd);
+	int			retval = 0;
+
+#ifdef CONFIG_PMAC_PBOOK
+	if (_machine == _MACH_Pmac) {
+		struct device_node *of_node;
+
+		/* Re-enable USB PAD & cell clock */
+		of_node = pci_device_to_OF_node (to_pci_dev(hcd->self.controller));
+		if (of_node)
+			pmac_call_feature (PMAC_FTR_USB_ENABLE, of_node, 0, 1);
+	}
+#endif /* CONFIG_PMAC_PBOOK */
+
+	/* resume root hub */
+	if (time_before (jiffies, ohci->next_statechange))
+		msleep (100);
+#ifdef	CONFIG_USB_SUSPEND
+	/* get extra cleanup even if remote wakeup isn't in use */
+	retval = usb_resume_device (hcd->self.root_hub);
+#else
+	usb_lock_device (hcd->self.root_hub);
+	retval = ohci_hub_resume (hcd);
+	usb_unlock_device (hcd->self.root_hub);
+#endif
+
+	return retval;
+}
+
+#endif	/* CONFIG_PM */
+
+
+/*-------------------------------------------------------------------------*/
+
+static const struct hc_driver ohci_pci_hc_driver = {
+	.description =		hcd_name,
+	.product_desc =		"OHCI Host Controller",
+	.hcd_priv_size =	sizeof(struct ohci_hcd),
+
+	/*
+	 * generic hardware linkage
+	 */
+	.irq =			ohci_irq,
+	.flags =		HCD_MEMORY | HCD_USB11,
+
+	/*
+	 * basic lifecycle operations
+	 */
+	.reset =		ohci_pci_reset,
+	.start =		ohci_pci_start,
+#ifdef	CONFIG_PM
+	.suspend =		ohci_pci_suspend,
+	.resume =		ohci_pci_resume,
+#endif
+	.stop =			ohci_stop,
+
+	/*
+	 * managing i/o requests and associated device resources
+	 */
+	.urb_enqueue =		ohci_urb_enqueue,
+	.urb_dequeue =		ohci_urb_dequeue,
+	.endpoint_disable =	ohci_endpoint_disable,
+
+	/*
+	 * scheduling support
+	 */
+	.get_frame_number =	ohci_get_frame,
+
+	/*
+	 * root hub support
+	 */
+	.hub_status_data =	ohci_hub_status_data,
+	.hub_control =		ohci_hub_control,
+#ifdef	CONFIG_USB_SUSPEND
+	.hub_suspend =		ohci_hub_suspend,
+	.hub_resume =		ohci_hub_resume,
+#endif
+	.start_port_reset =	ohci_start_port_reset,
+};
+
+/*-------------------------------------------------------------------------*/
+
+
+static const struct pci_device_id pci_ids [] = { {
+	/* handle any USB OHCI controller */
+	PCI_DEVICE_CLASS((PCI_CLASS_SERIAL_USB << 8) | 0x10, ~0),
+	.driver_data =	(unsigned long) &ohci_pci_hc_driver,
+	}, { /* end: all zeroes */ }
+};
+MODULE_DEVICE_TABLE (pci, pci_ids);
+
+/* pci driver glue; this is a "new style" PCI driver module */
+static struct pci_driver ohci_pci_driver = {
+	.name =		(char *) hcd_name,
+	.id_table =	pci_ids,
+
+	.probe =	usb_hcd_pci_probe,
+	.remove =	usb_hcd_pci_remove,
+
+#ifdef	CONFIG_PM
+	.suspend =	usb_hcd_pci_suspend,
+	.resume =	usb_hcd_pci_resume,
+#endif
+};
+
+ 
+static int __init ohci_hcd_pci_init (void) 
+{
+	printk (KERN_DEBUG "%s: " DRIVER_INFO " (PCI)\n", hcd_name);
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_debug ("%s: block sizes: ed %Zd td %Zd\n", hcd_name,
+		sizeof (struct ed), sizeof (struct td));
+	return pci_register_driver (&ohci_pci_driver);
+}
+module_init (ohci_hcd_pci_init);
+
+/*-------------------------------------------------------------------------*/
+
+static void __exit ohci_hcd_pci_cleanup (void) 
+{	
+	pci_unregister_driver (&ohci_pci_driver);
+}
+module_exit (ohci_hcd_pci_cleanup);