rename packages/ to recipes/ per earlier agreement

See links below for more details:
http://thread.gmane.org/gmane.comp.handhelds.openembedded/21326
http://thread.gmane.org/gmane.comp.handhelds.openembedded/21816

Signed-off-by: Denys Dmytriyenko <denis@denix.org>
Acked-by: Mike Westerhof <mwester@dls.net>
Acked-by: Philip Balister <philip@balister.org>
Acked-by: Khem Raj <raj.khem@gmail.com>
Acked-by: Marcin Juszkiewicz <hrw@openembedded.org>
Acked-by: Koen Kooi <koen@openembedded.org>
Acked-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>

8 files changed, 3468 insertions, 0 deletions

diff --git a/recipes/cfu1/cfu1-modules_2.6.bb b/recipes/cfu1/cfu1-modules_2.6.bb
new file mode 100644
index 0000000000..b6446c689b
--- /dev/null
+++ b/recipes/cfu1/cfu1-modules_2.6.bb
@@ -0,0 +1,30 @@
+DESCRIPTION = "PCMCIA driver for the RATOC REX-CFU1 USB host controller CF card."
+SECTION = "kernel/modules"
+PRIORITY = "optional"
+DEPENDS = "virtual/kernel"
+LICENSE = "GPL"
+RDEPENDS = "kernel-module-usbcore"
+PR = "r2"
+
+SRC_URI = "file://rex-cfu1.conf \
+           file://Makefile \
+           file://sl811_cs.c \
+           file://sl811_hcd.c \
+           file://sl811.h \
+           file://hcd.h \
+           file://hub.h"
+
+S = "${WORKDIR}"
+
+inherit module
+
+EXTRA_OEMAKE = 'EXTRA_CFLAGS="-DCONFIG_USB_SL811_CS -DCONFIG_USB_DEBUG" -C ${STAGING_KERNEL_DIR} SUBDIRS=${WORKDIR}'
+
+do_install() {
+	install -d ${D}/lib/modules/${KERNEL_VERSION}/pcmcia/
+	install -m 0644 sl811_cs.ko ${D}/lib/modules/${KERNEL_VERSION}/pcmcia/
+	install -m 0644 sl811_hcd.ko ${D}/lib/modules/${KERNEL_VERSION}/pcmcia/
+
+	install -d ${D}/${sysconfdir}/pcmcia/
+	install -m 0644 ${WORKDIR}/rex-cfu1.conf ${D}/${sysconfdir}/pcmcia/
+}
diff --git a/recipes/cfu1/files/Makefile b/recipes/cfu1/files/Makefile
new file mode 100644
index 0000000000..dbfb40d18a
--- /dev/null
+++ b/recipes/cfu1/files/Makefile
@@ -0,0 +1,2 @@
+obj-m += sl811_cs.o
+obj-m += sl811_hcd.o
diff --git a/recipes/cfu1/files/hcd.h b/recipes/cfu1/files/hcd.h
new file mode 100644
index 0000000000..a9bb99053b
--- /dev/null
+++ b/recipes/cfu1/files/hcd.h
@@ -0,0 +1,487 @@
+/*
+ * Copyright (c) 2001-2002 by David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#ifdef __KERNEL__
+
+/* This file contains declarations of usbcore internals that are mostly
+ * used or exposed by Host Controller Drivers.
+ */
+
+/*
+ * USB Packet IDs (PIDs)
+ */
+#define USB_PID_UNDEF_0			0xf0
+#define USB_PID_OUT			0xe1
+#define USB_PID_ACK			0xd2
+#define USB_PID_DATA0			0xc3
+#define USB_PID_PING			0xb4	/* USB 2.0 */
+#define USB_PID_SOF			0xa5
+#define USB_PID_NYET			0x96	/* USB 2.0 */
+#define USB_PID_DATA2			0x87	/* USB 2.0 */
+#define USB_PID_SPLIT			0x78	/* USB 2.0 */
+#define USB_PID_IN			0x69
+#define USB_PID_NAK			0x5a
+#define USB_PID_DATA1			0x4b
+#define USB_PID_PREAMBLE		0x3c	/* Token mode */
+#define USB_PID_ERR			0x3c	/* USB 2.0: handshake mode */
+#define USB_PID_SETUP			0x2d
+#define USB_PID_STALL			0x1e
+#define USB_PID_MDATA			0x0f	/* USB 2.0 */
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * USB Host Controller Driver (usb_hcd) framework
+ *
+ * Since "struct usb_bus" is so thin, you can't share much code in it.
+ * This framework is a layer over that, and should be more sharable.
+ */
+
+/*-------------------------------------------------------------------------*/
+
+struct usb_hcd {	/* usb_bus.hcpriv points to this */
+
+	/*
+	 * housekeeping
+	 */
+	struct usb_bus		self;		/* hcd is-a bus */
+
+	const char		*product_desc;	/* product/vendor string */
+	char			irq_descr[24];	/* driver + bus # */
+
+	struct timer_list	rh_timer;	/* drives root-hub polling */
+	struct urb		*status_urb;	/* the current status urb */
+
+	/*
+	 * hardware info/state
+	 */
+	const struct hc_driver	*driver;	/* hw-specific hooks */
+	unsigned		saw_irq : 1;
+	unsigned		can_wakeup:1;	/* hw supports wakeup? */
+	unsigned		remote_wakeup:1;/* sw should use wakeup? */
+	unsigned		rh_registered:1;/* is root hub registered? */
+
+	/* The next flag is a stopgap, to be removed when all the HCDs
+	 * support the new root-hub polling mechanism. */
+	unsigned		uses_new_polling:1;
+	unsigned		poll_rh:1;	/* poll for rh status? */
+	unsigned		poll_pending:1;	/* status has changed? */
+
+	int			irq;		/* irq allocated */
+	void __iomem		*regs;		/* device memory/io */
+	u64			rsrc_start;	/* memory/io resource start */
+	u64			rsrc_len;	/* memory/io resource length */
+	unsigned		power_budget;	/* in mA, 0 = no limit */
+
+#define HCD_BUFFER_POOLS	4
+	struct dma_pool		*pool [HCD_BUFFER_POOLS];
+
+	int			state;
+#	define	__ACTIVE		0x01
+#	define	__SUSPEND		0x04
+#	define	__TRANSIENT		0x80
+
+#	define	HC_STATE_HALT		0
+#	define	HC_STATE_RUNNING	(__ACTIVE)
+#	define	HC_STATE_QUIESCING	(__SUSPEND|__TRANSIENT|__ACTIVE)
+#	define	HC_STATE_RESUMING	(__SUSPEND|__TRANSIENT)
+#	define	HC_STATE_SUSPENDED	(__SUSPEND)
+
+#define	HC_IS_RUNNING(state) ((state) & __ACTIVE)
+#define	HC_IS_SUSPENDED(state) ((state) & __SUSPEND)
+
+	/* more shared queuing code would be good; it should support
+	 * smarter scheduling, handle transaction translators, etc;
+	 * input size of periodic table to an interrupt scheduler. 
+	 * (ohci 32, uhci 1024, ehci 256/512/1024).
+	 */
+
+	/* The HC driver's private data is stored at the end of
+	 * this structure.
+	 */
+	unsigned long hcd_priv[0]
+			__attribute__ ((aligned (sizeof(unsigned long))));
+};
+
+/* 2.4 does this a bit differently ... */
+static inline struct usb_bus *hcd_to_bus (struct usb_hcd *hcd)
+{
+	return &hcd->self;
+}
+
+
+// urb.hcpriv is really hardware-specific
+
+struct hcd_timeout {	/* timeouts we allocate */
+	struct list_head	timeout_list;
+	struct timer_list	timer;
+};
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * FIXME usb_operations should vanish or become hc_driver,
+ * when usb_bus and usb_hcd become the same thing.
+ */
+
+struct usb_operations {
+	int (*get_frame_number) (struct usb_device *usb_dev);
+	int (*submit_urb) (struct urb *urb, int mem_flags);
+	int (*unlink_urb) (struct urb *urb, int status);
+
+	/* allocate dma-consistent buffer for URB_DMA_NOMAPPING */
+	void *(*buffer_alloc)(struct usb_bus *bus, size_t size,
+			int mem_flags,
+			dma_addr_t *dma);
+	void (*buffer_free)(struct usb_bus *bus, size_t size,
+			void *addr, dma_addr_t dma);
+
+	void (*disable)(struct usb_device *udev,
+			struct usb_host_endpoint *ep);
+
+	/* global suspend/resume of bus */
+	int (*hub_suspend)(struct usb_bus *);
+	int (*hub_resume)(struct usb_bus *);
+};
+
+/* each driver provides one of these, and hardware init support */
+
+struct pt_regs;
+
+struct hc_driver {
+	const char	*description;	/* "ehci-hcd" etc */
+	const char	*product_desc;	/* product/vendor string */
+	size_t		hcd_priv_size;	/* size of private data */
+
+	/* irq handler */
+	irqreturn_t	(*irq) (struct usb_hcd *hcd, struct pt_regs *regs);
+
+	int	flags;
+#define	HCD_MEMORY	0x0001		/* HC regs use memory (else I/O) */
+#define	HCD_USB11	0x0010		/* USB 1.1 */
+#define	HCD_USB2	0x0020		/* USB 2.0 */
+
+	/* called to init HCD and root hub */
+	int	(*reset) (struct usb_hcd *hcd);
+	int	(*start) (struct usb_hcd *hcd);
+
+	/* NOTE:  these suspend/resume calls relate to the HC as
+	 * a whole, not just the root hub; they're for bus glue.
+	 */
+	/* called after all devices were suspended */
+	int	(*suspend) (struct usb_hcd *hcd, pm_message_t message);
+
+	/* called before any devices get resumed */
+	int	(*resume) (struct usb_hcd *hcd);
+
+	/* cleanly make HCD stop writing memory and doing I/O */
+	void	(*stop) (struct usb_hcd *hcd);
+
+	/* return current frame number */
+	int	(*get_frame_number) (struct usb_hcd *hcd);
+
+	/* manage i/o requests, device state */
+	int	(*urb_enqueue) (struct usb_hcd *hcd,
+					struct usb_host_endpoint *ep,
+					struct urb *urb,
+					int mem_flags);
+	int	(*urb_dequeue) (struct usb_hcd *hcd, struct urb *urb);
+
+	/* hw synch, freeing endpoint resources that urb_dequeue can't */
+	void 	(*endpoint_disable)(struct usb_hcd *hcd,
+			struct usb_host_endpoint *ep);
+
+	/* root hub support */
+	int		(*hub_status_data) (struct usb_hcd *hcd, char *buf);
+	int		(*hub_control) (struct usb_hcd *hcd,
+				u16 typeReq, u16 wValue, u16 wIndex,
+				char *buf, u16 wLength);
+	int		(*hub_suspend)(struct usb_hcd *);
+	int		(*hub_resume)(struct usb_hcd *);
+	int		(*start_port_reset)(struct usb_hcd *, unsigned port_num);
+	void		(*hub_irq_enable)(struct usb_hcd *);
+		/* Needed only if port-change IRQs are level-triggered */
+};
+
+extern void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb, struct pt_regs *regs);
+
+extern struct usb_hcd *usb_create_hcd (const struct hc_driver *driver,
+		struct device *dev, char *bus_name);
+extern void usb_put_hcd (struct usb_hcd *hcd);
+extern int usb_add_hcd(struct usb_hcd *hcd,
+		unsigned int irqnum, unsigned long irqflags);
+extern void usb_remove_hcd(struct usb_hcd *hcd);
+
+#ifdef CONFIG_PCI
+struct pci_dev;
+struct pci_device_id;
+extern int usb_hcd_pci_probe (struct pci_dev *dev,
+				const struct pci_device_id *id);
+extern void usb_hcd_pci_remove (struct pci_dev *dev);
+
+#ifdef CONFIG_PM
+extern int usb_hcd_pci_suspend (struct pci_dev *dev, pm_message_t state);
+extern int usb_hcd_pci_resume (struct pci_dev *dev);
+#endif /* CONFIG_PM */
+
+#endif /* CONFIG_PCI */
+
+/* pci-ish (pdev null is ok) buffer alloc/mapping support */
+int hcd_buffer_create (struct usb_hcd *hcd);
+void hcd_buffer_destroy (struct usb_hcd *hcd);
+
+void *hcd_buffer_alloc (struct usb_bus *bus, size_t size,
+	int mem_flags, dma_addr_t *dma);
+void hcd_buffer_free (struct usb_bus *bus, size_t size,
+	void *addr, dma_addr_t dma);
+
+/* generic bus glue, needed for host controllers that don't use PCI */
+extern irqreturn_t usb_hcd_irq (int irq, void *__hcd, struct pt_regs *r);
+
+extern void usb_hc_died (struct usb_hcd *hcd);
+extern void usb_hcd_poll_rh_status(struct usb_hcd *hcd);
+
+/* -------------------------------------------------------------------------- */
+
+/* Enumeration is only for the hub driver, or HCD virtual root hubs */
+extern struct usb_device *usb_alloc_dev(struct usb_device *parent,
+					struct usb_bus *, unsigned port);
+extern int usb_new_device(struct usb_device *dev);
+extern void usb_disconnect(struct usb_device **);
+
+extern int usb_get_configuration(struct usb_device *dev);
+extern void usb_destroy_configuration(struct usb_device *dev);
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * HCD Root Hub support
+ */
+
+#include "hub.h"
+
+/* (shifted) direction/type/recipient from the USB 2.0 spec, table 9.2 */
+#define DeviceRequest \
+	((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
+#define DeviceOutRequest \
+	((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
+
+#define InterfaceRequest \
+	((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
+
+#define EndpointRequest \
+	((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
+#define EndpointOutRequest \
+	((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
+
+/* class requests from the USB 2.0 hub spec, table 11-15 */
+/* GetBusState and SetHubDescriptor are optional, omitted */
+#define ClearHubFeature		(0x2000 | USB_REQ_CLEAR_FEATURE)
+#define ClearPortFeature	(0x2300 | USB_REQ_CLEAR_FEATURE)
+#define GetHubDescriptor	(0xa000 | USB_REQ_GET_DESCRIPTOR)
+#define GetHubStatus		(0xa000 | USB_REQ_GET_STATUS)
+#define GetPortStatus		(0xa300 | USB_REQ_GET_STATUS)
+#define SetHubFeature		(0x2000 | USB_REQ_SET_FEATURE)
+#define SetPortFeature		(0x2300 | USB_REQ_SET_FEATURE)
+
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * Generic bandwidth allocation constants/support
+ */
+#define FRAME_TIME_USECS	1000L
+#define BitTime(bytecount)  (7 * 8 * bytecount / 6)  /* with integer truncation */
+		/* Trying not to use worst-case bit-stuffing
+                   of (7/6 * 8 * bytecount) = 9.33 * bytecount */
+		/* bytecount = data payload byte count */
+
+#define NS_TO_US(ns)	((ns + 500L) / 1000L)
+			/* convert & round nanoseconds to microseconds */
+
+extern void usb_claim_bandwidth (struct usb_device *dev, struct urb *urb,
+		int bustime, int isoc);
+extern void usb_release_bandwidth (struct usb_device *dev, struct urb *urb,
+		int isoc);
+
+/*
+ * Full/low speed bandwidth allocation constants/support.
+ */
+#define BW_HOST_DELAY	1000L		/* nanoseconds */
+#define BW_HUB_LS_SETUP	333L		/* nanoseconds */
+                        /* 4 full-speed bit times (est.) */
+
+#define FRAME_TIME_BITS         12000L		/* frame = 1 millisecond */
+#define FRAME_TIME_MAX_BITS_ALLOC	(90L * FRAME_TIME_BITS / 100L)
+#define FRAME_TIME_MAX_USECS_ALLOC	(90L * FRAME_TIME_USECS / 100L)
+
+extern int usb_check_bandwidth (struct usb_device *dev, struct urb *urb);
+
+/*
+ * Ceiling microseconds (typical) for that many bytes at high speed
+ * ISO is a bit less, no ACK ... from USB 2.0 spec, 5.11.3 (and needed
+ * to preallocate bandwidth)
+ */
+#define USB2_HOST_DELAY	5	/* nsec, guess */
+#define HS_USECS(bytes) NS_TO_US ( ((55 * 8 * 2083)/1000) \
+	+ ((2083UL * (3167 + BitTime (bytes)))/1000) \
+	+ USB2_HOST_DELAY)
+#define HS_USECS_ISO(bytes) NS_TO_US ( ((38 * 8 * 2083)/1000) \
+	+ ((2083UL * (3167 + BitTime (bytes)))/1000) \
+	+ USB2_HOST_DELAY)
+
+extern long usb_calc_bus_time (int speed, int is_input,
+			int isoc, int bytecount);
+
+/*-------------------------------------------------------------------------*/
+
+extern struct usb_bus *usb_alloc_bus (struct usb_operations *);
+
+extern void usb_hcd_resume_root_hub (struct usb_hcd *hcd);
+
+extern void usb_set_device_state(struct usb_device *udev,
+		enum usb_device_state new_state);
+
+/*-------------------------------------------------------------------------*/
+
+/* exported only within usbcore */
+
+extern struct list_head usb_bus_list;
+extern struct semaphore usb_bus_list_lock;
+extern wait_queue_head_t usb_kill_urb_queue;
+
+extern struct usb_bus *usb_bus_get (struct usb_bus *bus);
+extern void usb_bus_put (struct usb_bus *bus);
+
+extern void usb_enable_root_hub_irq (struct usb_bus *bus);
+
+extern int usb_find_interface_driver (struct usb_device *dev,
+	struct usb_interface *interface);
+
+#define usb_endpoint_out(ep_dir)	(!((ep_dir) & USB_DIR_IN))
+
+/*
+ * USB device fs stuff
+ */
+
+#ifdef CONFIG_USB_DEVICEFS
+
+/*
+ * these are expected to be called from the USB core/hub thread
+ * with the kernel lock held
+ */
+extern void usbfs_add_bus(struct usb_bus *bus);
+extern void usbfs_remove_bus(struct usb_bus *bus);
+extern void usbfs_add_device(struct usb_device *dev);
+extern void usbfs_remove_device(struct usb_device *dev);
+extern void usbfs_update_special (void);
+
+extern int usbfs_init(void);
+extern void usbfs_cleanup(void);
+
+#else /* CONFIG_USB_DEVICEFS */
+
+static inline void usbfs_add_bus(struct usb_bus *bus) {}
+static inline void usbfs_remove_bus(struct usb_bus *bus) {}
+static inline void usbfs_add_device(struct usb_device *dev) {}
+static inline void usbfs_remove_device(struct usb_device *dev) {}
+static inline void usbfs_update_special (void) {}
+
+static inline int usbfs_init(void) { return 0; }
+static inline void usbfs_cleanup(void) { }
+
+#endif /* CONFIG_USB_DEVICEFS */
+
+/*-------------------------------------------------------------------------*/
+
+#if defined(CONFIG_USB_MON) || defined(CONFIG_USB_MON_MODULE)
+
+struct usb_mon_operations {
+	void (*urb_submit)(struct usb_bus *bus, struct urb *urb);
+	void (*urb_submit_error)(struct usb_bus *bus, struct urb *urb, int err);
+	void (*urb_complete)(struct usb_bus *bus, struct urb *urb);
+	/* void (*urb_unlink)(struct usb_bus *bus, struct urb *urb); */
+	void (*bus_add)(struct usb_bus *bus);
+	void (*bus_remove)(struct usb_bus *bus);
+};
+
+extern struct usb_mon_operations *mon_ops;
+
+static inline void usbmon_urb_submit(struct usb_bus *bus, struct urb *urb)
+{
+	if (bus->monitored)
+		(*mon_ops->urb_submit)(bus, urb);
+}
+
+static inline void usbmon_urb_submit_error(struct usb_bus *bus, struct urb *urb,
+    int error)
+{
+	if (bus->monitored)
+		(*mon_ops->urb_submit_error)(bus, urb, error);
+}
+
+static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb)
+{
+	if (bus->monitored)
+		(*mon_ops->urb_complete)(bus, urb);
+}
+ 
+static inline void usbmon_notify_bus_add(struct usb_bus *bus)
+{
+	if (mon_ops)
+		(*mon_ops->bus_add)(bus);
+}
+
+static inline void usbmon_notify_bus_remove(struct usb_bus *bus)
+{
+	if (mon_ops)
+		(*mon_ops->bus_remove)(bus);
+}
+
+int usb_mon_register(struct usb_mon_operations *ops);
+void usb_mon_deregister(void);
+
+#else
+
+static inline void usbmon_urb_submit(struct usb_bus *bus, struct urb *urb) {}
+static inline void usbmon_urb_submit_error(struct usb_bus *bus, struct urb *urb,
+    int error) {}
+static inline void usbmon_urb_complete(struct usb_bus *bus, struct urb *urb) {}
+static inline void usbmon_notify_bus_add(struct usb_bus *bus) {}
+static inline void usbmon_notify_bus_remove(struct usb_bus *bus) {}
+
+#endif /* CONFIG_USB_MON */
+
+/*-------------------------------------------------------------------------*/
+
+/* hub.h ... DeviceRemovable in 2.4.2-ac11, gone in 2.4.10 */
+// bleech -- resurfaced in 2.4.11 or 2.4.12
+#define bitmap 	DeviceRemovable
+
+
+/*-------------------------------------------------------------------------*/
+
+/* random stuff */
+
+#define	RUN_CONTEXT (in_irq () ? "in_irq" \
+		: (in_interrupt () ? "in_interrupt" : "can sleep"))
+
+
+#endif /* __KERNEL__ */
+
diff --git a/recipes/cfu1/files/hub.h b/recipes/cfu1/files/hub.h
new file mode 100644
index 0000000000..53bf564962
--- /dev/null
+++ b/recipes/cfu1/files/hub.h
@@ -0,0 +1,227 @@
+#ifndef __LINUX_HUB_H
+#define __LINUX_HUB_H
+
+/*
+ * Hub protocol and driver data structures.
+ *
+ * Some of these are known to the "virtual root hub" code
+ * in host controller drivers.
+ */
+
+#include <linux/list.h>
+#include <linux/workqueue.h>
+#include <linux/compiler.h>	/* likely()/unlikely() */
+
+/*
+ * Hub request types
+ */
+
+#define USB_RT_HUB	(USB_TYPE_CLASS | USB_RECIP_DEVICE)
+#define USB_RT_PORT	(USB_TYPE_CLASS | USB_RECIP_OTHER)
+
+/*
+ * Hub class requests
+ * See USB 2.0 spec Table 11-16
+ */
+#define HUB_CLEAR_TT_BUFFER	8
+#define HUB_RESET_TT		9
+#define HUB_GET_TT_STATE	10
+#define HUB_STOP_TT		11
+
+/*
+ * Hub Class feature numbers
+ * See USB 2.0 spec Table 11-17
+ */
+#define C_HUB_LOCAL_POWER	0
+#define C_HUB_OVER_CURRENT	1
+
+/*
+ * Port feature numbers
+ * See USB 2.0 spec Table 11-17
+ */
+#define USB_PORT_FEAT_CONNECTION	0
+#define USB_PORT_FEAT_ENABLE		1
+#define USB_PORT_FEAT_SUSPEND		2
+#define USB_PORT_FEAT_OVER_CURRENT	3
+#define USB_PORT_FEAT_RESET		4
+#define USB_PORT_FEAT_POWER		8
+#define USB_PORT_FEAT_LOWSPEED		9
+#define USB_PORT_FEAT_HIGHSPEED		10
+#define USB_PORT_FEAT_C_CONNECTION	16
+#define USB_PORT_FEAT_C_ENABLE		17
+#define USB_PORT_FEAT_C_SUSPEND		18
+#define USB_PORT_FEAT_C_OVER_CURRENT	19
+#define USB_PORT_FEAT_C_RESET		20
+#define USB_PORT_FEAT_TEST              21
+#define USB_PORT_FEAT_INDICATOR         22
+
+/* 
+ * Hub Status and Hub Change results
+ * See USB 2.0 spec Table 11-19 and Table 11-20
+ */
+struct usb_port_status {
+	__le16 wPortStatus;
+	__le16 wPortChange;	
+} __attribute__ ((packed));
+
+/* 
+ * wPortStatus bit field
+ * See USB 2.0 spec Table 11-21
+ */
+#define USB_PORT_STAT_CONNECTION	0x0001
+#define USB_PORT_STAT_ENABLE		0x0002
+#define USB_PORT_STAT_SUSPEND		0x0004
+#define USB_PORT_STAT_OVERCURRENT	0x0008
+#define USB_PORT_STAT_RESET		0x0010
+/* bits 5 to 7 are reserved */
+#define USB_PORT_STAT_POWER		0x0100
+#define USB_PORT_STAT_LOW_SPEED		0x0200
+#define USB_PORT_STAT_HIGH_SPEED        0x0400
+#define USB_PORT_STAT_TEST              0x0800
+#define USB_PORT_STAT_INDICATOR         0x1000
+/* bits 13 to 15 are reserved */
+
+/* 
+ * wPortChange bit field
+ * See USB 2.0 spec Table 11-22
+ * Bits 0 to 4 shown, bits 5 to 15 are reserved
+ */
+#define USB_PORT_STAT_C_CONNECTION	0x0001
+#define USB_PORT_STAT_C_ENABLE		0x0002
+#define USB_PORT_STAT_C_SUSPEND		0x0004
+#define USB_PORT_STAT_C_OVERCURRENT	0x0008
+#define USB_PORT_STAT_C_RESET		0x0010
+
+/*
+ * wHubCharacteristics (masks) 
+ * See USB 2.0 spec Table 11-13, offset 3
+ */
+#define HUB_CHAR_LPSM		0x0003 /* D1 .. D0 */
+#define HUB_CHAR_COMPOUND	0x0004 /* D2       */
+#define HUB_CHAR_OCPM		0x0018 /* D4 .. D3 */
+#define HUB_CHAR_TTTT           0x0060 /* D6 .. D5 */
+#define HUB_CHAR_PORTIND        0x0080 /* D7       */
+
+struct usb_hub_status {
+	__le16 wHubStatus;
+	__le16 wHubChange;
+} __attribute__ ((packed));
+
+/*
+ * Hub Status & Hub Change bit masks
+ * See USB 2.0 spec Table 11-19 and Table 11-20
+ * Bits 0 and 1 for wHubStatus and wHubChange
+ * Bits 2 to 15 are reserved for both
+ */
+#define HUB_STATUS_LOCAL_POWER	0x0001
+#define HUB_STATUS_OVERCURRENT	0x0002
+#define HUB_CHANGE_LOCAL_POWER	0x0001
+#define HUB_CHANGE_OVERCURRENT	0x0002
+
+
+/* 
+ * Hub descriptor 
+ * See USB 2.0 spec Table 11-13
+ */
+
+#define USB_DT_HUB			(USB_TYPE_CLASS | 0x09)
+#define USB_DT_HUB_NONVAR_SIZE		7
+
+struct usb_hub_descriptor {
+	__u8  bDescLength;
+	__u8  bDescriptorType;
+	__u8  bNbrPorts;
+	__u16 wHubCharacteristics;
+	__u8  bPwrOn2PwrGood;
+	__u8  bHubContrCurrent;
+	    	/* add 1 bit for hub status change; round to bytes */
+	__u8  DeviceRemovable[(USB_MAXCHILDREN + 1 + 7) / 8];
+	__u8  PortPwrCtrlMask[(USB_MAXCHILDREN + 1 + 7) / 8];
+} __attribute__ ((packed));
+
+
+/* port indicator status selectors, tables 11-7 and 11-25 */
+#define HUB_LED_AUTO	0
+#define HUB_LED_AMBER	1
+#define HUB_LED_GREEN	2
+#define HUB_LED_OFF	3
+
+enum hub_led_mode {
+	INDICATOR_AUTO = 0,
+	INDICATOR_CYCLE,
+	/* software blinks for attention:  software, hardware, reserved */
+	INDICATOR_GREEN_BLINK, INDICATOR_GREEN_BLINK_OFF,
+	INDICATOR_AMBER_BLINK, INDICATOR_AMBER_BLINK_OFF,
+	INDICATOR_ALT_BLINK, INDICATOR_ALT_BLINK_OFF
+} __attribute__ ((packed));
+
+struct usb_device;
+
+/*
+ * As of USB 2.0, full/low speed devices are segregated into trees.
+ * One type grows from USB 1.1 host controllers (OHCI, UHCI etc).
+ * The other type grows from high speed hubs when they connect to
+ * full/low speed devices using "Transaction Translators" (TTs).
+ *
+ * TTs should only be known to the hub driver, and high speed bus
+ * drivers (only EHCI for now).  They affect periodic scheduling and
+ * sometimes control/bulk error recovery.
+ */
+struct usb_tt {
+	struct usb_device	*hub;	/* upstream highspeed hub */
+	int			multi;	/* true means one TT per port */
+
+	/* for control/bulk error recovery (CLEAR_TT_BUFFER) */
+	spinlock_t		lock;
+	struct list_head	clear_list;	/* of usb_tt_clear */
+	struct work_struct			kevent;
+};
+
+struct usb_tt_clear {
+	struct list_head	clear_list;
+	unsigned		tt;
+	u16			devinfo;
+};
+
+extern void usb_hub_tt_clear_buffer (struct usb_device *dev, int pipe);
+
+struct usb_hub {
+	struct device		*intfdev;	/* the "interface" device */
+	struct usb_device	*hdev;
+	struct urb		*urb;		/* for interrupt polling pipe */
+
+	/* buffer for urb ... with extra space in case of babble */
+	char			(*buffer)[8];
+	dma_addr_t		buffer_dma;	/* DMA address for buffer */
+	union {
+		struct usb_hub_status	hub;
+		struct usb_port_status	port;
+	}			*status;	/* buffer for status reports */
+
+	int			error;		/* last reported error */
+	int			nerrors;	/* track consecutive errors */
+
+	struct list_head	event_list;	/* hubs w/data or errs ready */
+	unsigned long		event_bits[1];	/* status change bitmask */
+	unsigned long		change_bits[1];	/* ports with logical connect
+							status change */
+	unsigned long		busy_bits[1];	/* ports being reset */
+#if USB_MAXCHILDREN > 31 /* 8*sizeof(unsigned long) - 1 */
+#error event_bits[] is too short!
+#endif
+
+	struct usb_hub_descriptor *descriptor;	/* class descriptor */
+	struct usb_tt		tt;		/* Transaction Translator */
+
+	u8			power_budget;	/* in 2mA units; or zero */
+
+	unsigned		quiescing:1;
+	unsigned		activating:1;
+	unsigned		resume_root_hub:1;
+
+	unsigned		has_indicators:1;
+	enum hub_led_mode	indicator[USB_MAXCHILDREN];
+	struct work_struct	leds;
+};
+
+#endif /* __LINUX_HUB_H */
diff --git a/recipes/cfu1/files/rex-cfu1.conf b/recipes/cfu1/files/rex-cfu1.conf
new file mode 100644
index 0000000000..fd06c621df
--- /dev/null
+++ b/recipes/cfu1/files/rex-cfu1.conf
@@ -0,0 +1,6 @@
+device "sl811_cs"
+  class "usb" module "sl811_hcd", "sl811_cs"
+
+card "RATOC USB HOST CF+ Card"
+  manfid 0xc015, 0x0001
+  bind "sl811_cs"
diff --git a/recipes/cfu1/files/sl811.h b/recipes/cfu1/files/sl811.h
new file mode 100644
index 0000000000..7690d98e42
--- /dev/null
+++ b/recipes/cfu1/files/sl811.h
@@ -0,0 +1,266 @@
+/*
+ * SL811HS register declarations and HCD data structures
+ *
+ * Copyright (C) 2004 Psion Teklogix
+ * Copyright (C) 2004 David Brownell
+ * Copyright (C) 2001 Cypress Semiconductor Inc. 
+ */
+
+/*
+ * SL811HS has transfer registers, and control registers.  In host/master
+ * mode one set of registers is used; in peripheral/slave mode, another.
+ *  - SL11H only has some "A" transfer registers from 0x00-0x04
+ *  - SL811HS also has "B" registers from 0x08-0x0c
+ *  - SL811S (or HS in slave mode) has four A+B sets, at 00, 10, 20, 30
+ */
+
+#define SL811_EP_A(base)	((base) + 0)
+#define SL811_EP_B(base)	((base) + 8)
+
+#define SL811_HOST_BUF		0x00
+#define SL811_PERIPH_EP0	0x00
+#define SL811_PERIPH_EP1	0x10
+#define SL811_PERIPH_EP2	0x20
+#define SL811_PERIPH_EP3	0x30
+
+
+/* TRANSFER REGISTERS:  host and peripheral sides are similar
+ * except for the control models (master vs slave).
+ */
+#define SL11H_HOSTCTLREG	0
+#	define SL11H_HCTLMASK_ARM	0x01
+#	define SL11H_HCTLMASK_ENABLE	0x02
+#	define SL11H_HCTLMASK_IN	0x00
+#	define SL11H_HCTLMASK_OUT	0x04
+#	define SL11H_HCTLMASK_ISOCH	0x10
+#	define SL11H_HCTLMASK_AFTERSOF	0x20
+#	define SL11H_HCTLMASK_TOGGLE	0x40
+#	define SL11H_HCTLMASK_PREAMBLE	0x80
+#define SL11H_BUFADDRREG	1
+#define SL11H_BUFLNTHREG	2
+#define SL11H_PKTSTATREG	3	/* read */
+#	define SL11H_STATMASK_ACK	0x01
+#	define SL11H_STATMASK_ERROR	0x02
+#	define SL11H_STATMASK_TMOUT	0x04
+#	define SL11H_STATMASK_SEQ	0x08
+#	define SL11H_STATMASK_SETUP	0x10
+#	define SL11H_STATMASK_OVF	0x20
+#	define SL11H_STATMASK_NAK	0x40
+#	define SL11H_STATMASK_STALL	0x80
+#define SL11H_PIDEPREG		3	/* write */
+#	define	SL_SETUP	0xd0
+#	define	SL_IN		0x90
+#	define	SL_OUT		0x10
+#	define	SL_SOF		0x50
+#	define	SL_PREAMBLE	0xc0
+#	define	SL_NAK		0xa0
+#	define	SL_STALL	0xe0
+#	define	SL_DATA0	0x30
+#	define	SL_DATA1	0xb0
+#define SL11H_XFERCNTREG	4	/* read */
+#define SL11H_DEVADDRREG	4	/* write */
+
+
+/* CONTROL REGISTERS:  host and peripheral are very different.
+ */
+#define SL11H_CTLREG1		5
+#	define SL11H_CTL1MASK_SOF_ENA	0x01
+#	define SL11H_CTL1MASK_FORCE	0x18
+#		define SL11H_CTL1MASK_NORMAL	0x00
+#		define SL11H_CTL1MASK_SE0	0x08	/* reset */
+#		define SL11H_CTL1MASK_J		0x10
+#		define SL11H_CTL1MASK_K		0x18	/* resume */
+#	define SL11H_CTL1MASK_LSPD	0x20
+#	define SL11H_CTL1MASK_SUSPEND	0x40
+#define SL11H_IRQ_ENABLE	6
+#	define SL11H_INTMASK_DONE_A	0x01
+#	define SL11H_INTMASK_DONE_B	0x02
+#	define SL11H_INTMASK_SOFINTR	0x10
+#	define SL11H_INTMASK_INSRMV	0x20	/* to/from SE0 */
+#	define SL11H_INTMASK_RD		0x40
+#	define SL11H_INTMASK_DP		0x80	/* only in INTSTATREG */
+#define SL11S_ADDRESS		7
+
+/* 0x08-0x0c are for the B buffer (not in SL11) */
+
+#define SL11H_IRQ_STATUS	0x0D	/* write to ack */
+#define SL11H_HWREVREG		0x0E	/* read */
+#	define SL11H_HWRMASK_HWREV	0xF0
+#define SL11H_SOFLOWREG		0x0E	/* write */
+#define SL11H_SOFTMRREG		0x0F	/* read */
+
+/* a write to this register enables SL811HS features.
+ * HOST flag presumably overrides the chip input signal?
+ */
+#define SL811HS_CTLREG2		0x0F
+#	define SL811HS_CTL2MASK_SOF_MASK	0x3F
+#	define SL811HS_CTL2MASK_DSWAP		0x40
+#	define SL811HS_CTL2MASK_HOST		0x80
+
+#define SL811HS_CTL2_INIT	(SL811HS_CTL2MASK_HOST | 0x2e)
+
+
+/* DATA BUFFERS: registers from 0x10..0xff are for data buffers;
+ * that's 240 bytes, which we'll split evenly between A and B sides.
+ * Only ISO can use more than 64 bytes per packet.
+ * (The SL11S has 0x40..0xff for buffers.)
+ */
+#define H_MAXPACKET	120		/* bytes in A or B fifos */
+
+#define SL11H_DATA_START	0x10
+#define	SL811HS_PACKET_BUF(is_a)	((is_a) \
+		? SL11H_DATA_START \
+		: (SL11H_DATA_START + H_MAXPACKET))
+
+/*-------------------------------------------------------------------------*/
+
+#define	LOG2_PERIODIC_SIZE	5	/* arbitrary; this matches OHCI */
+#define	PERIODIC_SIZE		(1 << LOG2_PERIODIC_SIZE)
+
+struct sl811 {
+	spinlock_t		lock;
+	void __iomem		*addr_reg;
+	void __iomem		*data_reg;
+	struct sl811_platform_data	*board;
+	struct proc_dir_entry	*pde;
+
+	unsigned long		stat_insrmv;
+	unsigned long		stat_wake;
+	unsigned long		stat_sof;
+	unsigned long		stat_a;
+	unsigned long		stat_b;
+	unsigned long		stat_lost;
+	unsigned long		stat_overrun;
+
+	/* sw model */
+	struct timer_list	timer;
+	struct sl811h_ep	*next_periodic;
+	struct sl811h_ep	*next_async;
+
+	struct sl811h_ep	*active_a;
+	unsigned long		jiffies_a;
+	struct sl811h_ep	*active_b;
+	unsigned long		jiffies_b;
+
+	u32			port1;
+	u8			ctrl1, ctrl2, irq_enable;
+	u16			frame;
+
+	/* async schedule: control, bulk */
+	struct list_head	async;
+
+	/* periodic schedule: interrupt, iso */
+	u16			load[PERIODIC_SIZE];
+	struct sl811h_ep	*periodic[PERIODIC_SIZE];
+	unsigned		periodic_count;
+};
+
+static inline struct sl811 *hcd_to_sl811(struct usb_hcd *hcd)
+{
+	return (struct sl811 *) (hcd->hcd_priv);
+}
+
+static inline struct usb_hcd *sl811_to_hcd(struct sl811 *sl811)
+{
+	return container_of((void *) sl811, struct usb_hcd, hcd_priv);
+}
+
+struct sl811h_ep {
+	struct usb_host_endpoint *hep;
+	struct usb_device	*udev;
+
+	u8			defctrl;
+	u8			maxpacket;
+	u8			epnum;
+	u8			nextpid;
+
+	u16			error_count;
+	u16			nak_count;
+	u16			length;		/* of current packet */
+
+	/* periodic schedule */
+	u16			period;
+	u16			branch;
+	u16			load;
+	struct sl811h_ep	*next;
+
+	/* async schedule */
+	struct list_head	schedule;
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* These register utilities should work for the SL811S register API too
+ * NOTE:  caller must hold sl811->lock.
+ */
+
+static inline u8 sl811_read(struct sl811 *sl811, int reg)
+{
+	writeb(reg, sl811->addr_reg);
+	return readb(sl811->data_reg);
+}
+
+static inline void sl811_write(struct sl811 *sl811, int reg, u8 val)
+{
+	writeb(reg, sl811->addr_reg);
+	writeb(val, sl811->data_reg);
+}
+
+static inline void
+sl811_write_buf(struct sl811 *sl811, int addr, const void *buf, size_t count)
+{
+	const u8	*data;
+	void __iomem	*data_reg;
+
+	if (!count)
+		return;
+	writeb(addr, sl811->addr_reg);
+
+	data = buf;
+	data_reg = sl811->data_reg;
+	do {
+		writeb(*data++, data_reg);
+	} while (--count);
+}
+
+static inline void
+sl811_read_buf(struct sl811 *sl811, int addr, void *buf, size_t count)
+{
+	u8 		*data;
+	void __iomem	*data_reg;
+
+	if (!count)
+		return;
+	writeb(addr, sl811->addr_reg);
+
+	data = buf;
+	data_reg = sl811->data_reg;
+	do {
+		*data++ = readb(data_reg);
+	} while (--count);
+}
+
+/*-------------------------------------------------------------------------*/
+
+#ifdef DEBUG
+#define DBG(stuff...)		printk(KERN_DEBUG "sl811: " stuff)
+#else
+#define DBG(stuff...)		do{}while(0)
+#endif
+
+#ifdef VERBOSE
+#    define VDBG		DBG
+#else
+#    define VDBG(stuff...)	do{}while(0)
+#endif
+
+#ifdef PACKET_TRACE
+#    define PACKET		VDBG
+#else
+#    define PACKET(stuff...)	do{}while(0)
+#endif
+
+#define ERR(stuff...)		printk(KERN_ERR "sl811: " stuff)
+#define WARN(stuff...)		printk(KERN_WARNING "sl811: " stuff)
+#define INFO(stuff...)		printk(KERN_INFO "sl811: " stuff)
+
diff --git a/recipes/cfu1/files/sl811_cs.c b/recipes/cfu1/files/sl811_cs.c
new file mode 100644
index 0000000000..e223b647b3
--- /dev/null
+++ b/recipes/cfu1/files/sl811_cs.c
@@ -0,0 +1,518 @@
+/*
+  A SL811 CLIENT DRIVER for linux 2.4.x
+  Filename: sl811_cs.c
+  Version:  0.0.2
+  Author:   Yukio Yamamoto
+
+  Port to sl811-hcd and 2.6.x by
+    Botond Botyanszki <boti()rocketmail.com>
+    Simon Pickering
+
+  Last update: 2005-05-05
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/ioport.h>
+#include <linux/version.h>
+#include <asm/io.h>
+#include <asm/system.h>
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ds.h>
+
+#include <linux/usb_sl811.h>
+
+MODULE_AUTHOR("Botond Botyanszki");
+MODULE_DESCRIPTION("REX-CFU1 PCMCIA driver for 2.6");
+MODULE_LICENSE("GPL");
+
+
+/*====================================================================*/
+/* MACROS                                                             */
+/*====================================================================*/
+
+#if defined(DEBUG) || defined(CONFIG_USB_DEBUG)
+#define DBG(n, args...) printk(KERN_DEBUG "sl811_cs: " args)
+#else
+#define DBG(n, args...) do{}while(0)
+#endif
+
+#define INFO(args...) printk(KERN_INFO "sl811_cs: " args)
+
+/*static char *version = "sl811_cs.c 0.04 2005/04/27 00:00:00 (OpenZaurus Team)";*/
+
+#define INT_MODULE_PARM(n, v) static int n = v; MODULE_PARM(n, "i")
+
+#define CS_CHECK(fn, ret) \
+	do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
+
+/*====================================================================*/
+/* VARIABLES                                                          */
+/*====================================================================*/
+
+static dev_info_t dev_info  = "sl811_cs";
+static dev_link_t *dev_list = NULL;
+
+static ioaddr_t base_addr   = 0x00000000;
+static int irq              = -1;
+
+static int irq_list[4] = { -1 };
+MODULE_PARM(irq_list, "1-4i");
+INT_MODULE_PARM(free_ports, 0);
+INT_MODULE_PARM(irq_mask, 0xdeb8);
+
+/*====================================================================*/
+/* PROTO TYPES                                                        */
+/*====================================================================*/
+
+static dev_link_t* sl811_cs_attach(void);
+static void        sl811_cs_detach(dev_link_t *);
+static void        sl811_cs_config(dev_link_t *link);
+static void        sl811_cs_release(dev_link_t *arg);
+static int         sl811_cs_event(event_t event, int priority,
+				  event_callback_args_t *args);
+
+/*====================================================================*/
+/* PROTO TYPES                                                        */
+/*====================================================================*/
+
+typedef struct local_info_t {
+  dev_link_t		link;
+  dev_node_t		node;
+} local_info_t;
+
+static struct pcmcia_driver sl811_driver = {
+	.owner		= THIS_MODULE,
+	.drv		= {
+		.name	= "sl811_cs",
+	},
+	.attach		= sl811_cs_attach,
+	.detach		= sl811_cs_detach,
+};
+extern struct device_driver sl811h_driver;
+
+static struct sl811_platform_data platform_data;
+static struct res {
+	struct resource irq_res;
+	struct resource addr_res;
+	struct resource data_res;
+} resources;
+static struct platform_device platform_dev = {
+	.name              = "sl811_cs",
+	.id                = 0,
+	.num_resources     = 0,
+	.dev.dma_mask      = 0,
+	.dev.platform_data = &platform_data,
+	.dev.bus_id        = "sl811-hcd",
+	.dev.driver        = &sl811h_driver
+};
+
+/*====================================================================*/
+/* EXTERNAL FUNCTIONS                                                 */
+/*====================================================================*/
+int sl811h_probe(void *dev);
+
+/*====================================================================*/
+
+
+/*====================================================================*/
+static void release_platform_dev(struct device * dev) {
+	DBG(0, "sl811_cs platform_dev release\n");
+}
+
+/*====================================================================*/
+static dev_link_t *sl811_cs_attach(void)
+{
+  local_info_t *local;
+  dev_link_t *link;
+  client_reg_t client_reg;
+  int ret, i;
+  
+  local = kmalloc(sizeof(local_info_t), GFP_KERNEL);
+  if (!local) return NULL;
+  memset(local, 0, sizeof(local_info_t));
+  link = &local->link; link->priv = local;
+
+  /* Initialize */
+  link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+  link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
+  if (irq_list[0] == -1)
+    link->irq.IRQInfo2 = irq_mask;
+  else
+    for (i = 0; i < 4; i++)
+      link->irq.IRQInfo2 |= 1 << irq_list[i];
+  link->irq.Handler = NULL;
+    
+  link->conf.Attributes = 0;
+  link->conf.Vcc = 33;
+  link->conf.IntType = INT_MEMORY_AND_IO;
+  
+  /* Register with Card Services */
+  link->next = dev_list;
+  dev_list = link;
+  client_reg.dev_info = &dev_info;
+  client_reg.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
+  client_reg.EventMask =
+    CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+    CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET |
+    CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+  client_reg.event_handler = &sl811_cs_event;
+  client_reg.Version = 0x0210;
+  client_reg.event_callback_args.client_data = link;
+  ret = pcmcia_register_client(&link->handle, &client_reg);
+  if (ret != CS_SUCCESS) {
+	  cs_error(link->handle, RegisterClient, ret);
+	  sl811_cs_detach(link);
+	  return NULL;
+  }
+  
+  return link;
+} /* sl811_cs_attach */
+
+/*====================================================================*/
+static void sl811_cs_detach(dev_link_t *link)
+{
+  dev_link_t **linkp;
+
+  DBG(0, "sl811_cs_detach(0x%p)\n", link);
+    
+  /* Locate device structure */
+  for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+    if (*linkp == link) break;
+  if (*linkp == NULL)
+    return;
+  
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) 
+  if (link->state & DEV_CONFIG) {
+#ifdef PCMCIA_DEBUG
+    printk(KERN_DEBUG "sl811_cs: detach postponed, '%s' "
+	   "still locked\n", link->dev->dev_name);
+#endif
+    link->state |= DEV_STALE_LINK;
+    return;
+  }
+#endif
+
+  /* Break the link with Card Services */
+  if (link->handle)
+    pcmcia_deregister_client(link->handle);
+  
+  /* Unlink device structure, and free it */
+  *linkp = link->next;
+  /* This points to the parent local_info_t struct */
+  kfree(link->priv);
+  
+} /* sl811_cs_detach */
+
+
+/*====================================================================*/
+static int sl811_hc_init(void)
+{
+	/* set up the device structure */
+	resources.irq_res.flags = IORESOURCE_IRQ;
+	resources.irq_res.start = irq;
+
+	resources.addr_res.flags = IORESOURCE_MEM;
+	resources.addr_res.start = base_addr;
+	resources.addr_res.end = base_addr + 1;
+
+	resources.data_res.flags = IORESOURCE_MEM;
+	resources.data_res.start = base_addr + 1;
+	resources.data_res.end   = base_addr + 4;
+
+	platform_dev.dev.release = release_platform_dev;
+	platform_device_register(&platform_dev);
+	/* FIXME: we register the platform device with 0 resources 
+	 otherwise the unregister call won't work*/
+
+	platform_dev.num_resources = 3;
+	platform_dev.resource      = (struct resource *) &resources;
+
+	/* try to initialize the host controller */
+	if (sl811h_probe(&platform_dev.dev) != 0) {
+		DBG(0, "sl811h_probe() didn't return 0\n");
+		return 0;
+	}
+	return 1;
+}
+
+
+/*====================================================================*/
+static void sl811_cs_config(dev_link_t *link)
+{
+  client_handle_t handle = link->handle;
+  local_info_t *dev = link->priv;
+  tuple_t tuple;
+  cisparse_t parse;
+  int last_fn, last_ret;
+  u_char buf[64];
+  config_info_t conf;
+  cistpl_cftable_entry_t dflt = { 0 };
+
+  DBG(0, "sl811_cs_config(0x%p)\n", link);
+  
+  tuple.DesiredTuple = CISTPL_CONFIG;
+  tuple.Attributes = 0;
+  tuple.TupleData = buf;
+  tuple.TupleDataMax = sizeof(buf);
+  tuple.TupleOffset = 0;
+  CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+  CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
+  CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
+  link->conf.ConfigBase = parse.config.base;
+  link->conf.Present = parse.config.rmask[0];
+    
+  /* Configure card */
+  link->state |= DEV_CONFIG;
+
+  /* Look up the current Vcc */
+  CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(handle, &conf));
+  link->conf.Vcc = conf.Vcc;
+  
+  tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+  CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+  while (1) {
+    cistpl_cftable_entry_t *cfg = &(parse.cftable_entry);
+	if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
+		pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
+		goto next_entry;
+
+    if (cfg->flags & CISTPL_CFTABLE_DEFAULT) {
+      dflt = *cfg;
+    }
+
+    if (cfg->index == 0) goto next_entry;    
+
+    link->conf.ConfigIndex = cfg->index;
+    
+    /* Does this card need audio output? */
+    if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
+      link->conf.Attributes |= CONF_ENABLE_SPKR;
+      link->conf.Status = CCSR_AUDIO_ENA;
+    }
+    
+    /* Use power settings for Vcc and Vpp if present */
+    /*  Note that the CIS values need to be rescaled */
+    if (cfg->vcc.present & (1<<CISTPL_POWER_VNOM)) {
+      if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM]/10000) {
+	goto next_entry;
+      }
+    } else if (dflt.vcc.present & (1<<CISTPL_POWER_VNOM)) {
+      if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM]/10000) {
+	goto next_entry;
+      }
+    }
+    
+    if (cfg->vpp1.present & (1<<CISTPL_POWER_VNOM))
+      link->conf.Vpp1 = link->conf.Vpp2 =
+	cfg->vpp1.param[CISTPL_POWER_VNOM]/10000;
+    else if (dflt.vpp1.present & (1<<CISTPL_POWER_VNOM))
+      link->conf.Vpp1 = link->conf.Vpp2 =
+	dflt.vpp1.param[CISTPL_POWER_VNOM]/10000;
+    
+    /* Do we need to allocate an interrupt? */
+    if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
+      link->conf.Attributes |= CONF_ENABLE_IRQ;
+    
+    /* IO window settings */
+    link->io.NumPorts1 = link->io.NumPorts2 = 0;
+    if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
+      cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
+
+      link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
+      link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
+      link->io.BasePort1 = io->win[0].base;
+      link->io.NumPorts1 = io->win[0].len;
+
+      if (pcmcia_request_io(link->handle, &link->io) != 0)
+	      goto next_entry;
+    }
+    break;
+    
+  next_entry:
+    if (link->io.NumPorts1)
+      pcmcia_release_io(link->handle, &link->io);
+	  last_ret = pcmcia_get_next_tuple(handle, &tuple);
+  }
+  
+  if (link->conf.Attributes & CONF_ENABLE_IRQ)
+    CS_CHECK(RequestIRQ, pcmcia_request_irq(link->handle, &link->irq));
+  
+  CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link->handle, &link->conf));
+  
+  if (free_ports) {
+    if (link->io.BasePort1)
+      release_region(link->io.BasePort1, link->io.NumPorts1);
+  }
+
+  sprintf(dev->node.dev_name, "cf_usb0");
+  dev->node.major = dev->node.minor = 0;
+  link->dev = &dev->node;
+  
+  printk(KERN_INFO "%s: index 0x%02x: Vcc %d.%d",
+	 dev->node.dev_name, link->conf.ConfigIndex,
+	 link->conf.Vcc/10, link->conf.Vcc%10);
+  if (link->conf.Vpp1)
+    printk(", Vpp %d.%d", link->conf.Vpp1/10, link->conf.Vpp1%10);
+  if (link->conf.Attributes & CONF_ENABLE_IRQ) {
+    printk(", irq %d", link->irq.AssignedIRQ);
+    irq = link->irq.AssignedIRQ;
+  }
+
+  if (link->io.NumPorts1) {
+    printk(", io 0x%04x-0x%04x", link->io.BasePort1,
+	   link->io.BasePort1+link->io.NumPorts1-1);
+    base_addr = link->io.BasePort1;
+  }
+
+  printk("\n");
+  
+  link->state &= ~DEV_CONFIG_PENDING;
+
+  /* Release resources claimed by PCMCIA for the sl811h driver */
+  release_region(link->io.BasePort1, link->io.NumPorts1);
+  
+  if (sl811_hc_init() == 0) goto cs_failed;
+
+  return;
+  
+ cs_failed:
+  printk("sl811_cs_config failed\n");
+  cs_error(link->handle, last_fn, last_ret);
+  sl811_cs_release(link);
+  link->state &= ~DEV_CONFIG_PENDING;
+
+} /* sl811_cs_config */
+
+/*====================================================================*/
+static void sl811_cs_release(dev_link_t * link)
+{
+
+  DBG(0, "sl811_cs_release(0x%p)\n", link);
+  
+  if (link->open) {
+    DBG(1, "sl811_cs: release postponed, '%s' still open\n",
+	  link->dev->dev_name);
+    link->state |= DEV_STALE_CONFIG;
+    return;
+  }
+
+  /* request IO, because PCMCIA thinks it has claimed it */
+  request_region(link->io.BasePort1, link->io.NumPorts1, "sl811_cs");
+
+  /* Unlink the device chain */
+  link->dev = NULL;
+  
+  pcmcia_release_configuration(link->handle);
+  if (link->io.NumPorts1)
+    pcmcia_release_io(link->handle, &link->io);
+  if (link->irq.AssignedIRQ)
+    pcmcia_release_irq(link->handle, &link->irq);
+  link->state &= ~DEV_CONFIG;
+  
+  if (link->state & DEV_STALE_LINK)
+    sl811_cs_detach(link);
+
+  /* FIXME: if the unregister call frees up the resources, it oopses
+   so we pretend to have 0 resources */
+  platform_dev.num_resources = 0;
+  platform_dev.resource      = NULL;
+
+  platform_device_unregister(&platform_dev);
+
+} /* sl811_cs_release */
+
+/*====================================================================*/
+static int sl811_cs_event(event_t event, int priority, event_callback_args_t *args)
+{
+  dev_link_t *link = args->client_data;
+    
+  DBG(1, "sl811_cs_event(0x%06x)\n", event);
+    
+  switch (event) {
+  case CS_EVENT_CARD_REMOVAL:
+    link->state &= ~DEV_PRESENT;
+    if (link->state & DEV_CONFIG) {
+      sl811_cs_release(link);
+    }
+    break;
+
+  case CS_EVENT_CARD_INSERTION:
+    link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+    sl811_cs_config(link);
+    break;
+
+  case CS_EVENT_PM_SUSPEND:
+    link->state |= DEV_SUSPEND;
+    /* Fall through... */
+  case CS_EVENT_RESET_PHYSICAL:
+    if (link->state & DEV_CONFIG)
+      pcmcia_release_configuration(link->handle);
+    break;
+  case CS_EVENT_PM_RESUME:
+    link->state &= ~DEV_SUSPEND;
+    /* Fall through... */
+  case CS_EVENT_CARD_RESET:
+    if (link->state & DEV_CONFIG)
+      pcmcia_request_configuration(link->handle, &link->conf);
+
+    INFO("FIXME: card reset\n");
+
+    break;
+  }
+  return 0;
+} /* sl811_cs_event */
+
+/*====================================================================*/
+static int __init init_sl811_cs(void)
+{
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+  servinfo_t serv;
+  DBG(0, "%s\n", version);
+  CardServices(GetCardServicesInfo, &serv);
+  if (serv.Revision != CS_RELEASE_CODE) {
+    printk(KERN_NOTICE "sl811_cs: Card Services release "
+	   "does not match!\n");
+    return -EINVAL;
+  }
+  register_pccard_driver(&dev_info, &sl811_cs_attach, &sl811_cs_detach);
+  return 0;
+#else
+  return pcmcia_register_driver(&sl811_driver);
+#endif
+
+}
+
+/*====================================================================*/
+static void __exit exit_sl811_cs(void)
+{
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) 
+  DBG(0, "sl811_cs: unloading\n");
+  unregister_pccard_driver(&dev_info);
+  while (dev_list != NULL) {
+    del_timer(&dev_list->release);
+    if (dev_list->state & DEV_CONFIG)
+      sl811_cs_release(dev_list);
+    sl811_cs_detach(dev_list);
+  }
+#else
+  pcmcia_unregister_driver(&sl811_driver);
+#endif
+
+}
+
+/*====================================================================*/
+
+module_init(init_sl811_cs);
+module_exit(exit_sl811_cs);
diff --git a/recipes/cfu1/files/sl811_hcd.c b/recipes/cfu1/files/sl811_hcd.c
new file mode 100644
index 0000000000..90e5f869b9
--- /dev/null
+++ b/recipes/cfu1/files/sl811_hcd.c
@@ -0,0 +1,1932 @@
+/*
+ * SL811HS HCD (Host Controller Driver) for USB.
+ *
+ * Copyright (C) 2004 Psion Teklogix (for NetBook PRO)
+ * Copyright (C) 2004 David Brownell
+ * 
+ * Periodic scheduling is based on Roman's OHCI code
+ * 	Copyright (C) 1999 Roman Weissgaerber
+ *
+ * The SL811HS controller handles host side USB (like the SL11H, but with
+ * another register set and SOF generation) as well as peripheral side USB
+ * (like the SL811S).  This driver version doesn't implement the Gadget API
+ * for the peripheral role; or OTG (that'd need much external circuitry).
+ *
+ * For documentation, see the SL811HS spec and the "SL811HS Embedded Host"
+ * document (providing significant pieces missing from that spec); plus
+ * the SL811S spec if you want peripheral side info.
+ */ 
+
+/*
+ * Status:  Passed basic stress testing, works with hubs, mice, keyboards,
+ * and usb-storage.
+ *
+ * TODO:
+ * - usb suspend/resume triggered by sl811 (with USB_SUSPEND)
+ * - various issues noted in the code
+ * - performance work; use both register banks; ...
+ * - use urb->iso_frame_desc[] with ISO transfers
+ */
+
+#undef	VERBOSE
+#undef	PACKET_TRACE
+
+#include <linux/config.h>
+
+#ifdef CONFIG_USB_DEBUG
+#	define DEBUG
+#else
+#	undef DEBUG
+#endif
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/smp_lock.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/list.h>
+#include <linux/interrupt.h>
+#include <linux/usb.h>
+#include <linux/usb_sl811.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+#include <asm/byteorder.h>
+
+#include "hcd.h"
+#include "sl811.h"
+
+
+MODULE_DESCRIPTION("SL811HS USB Host Controller Driver");
+MODULE_LICENSE("GPL");
+
+#define DRIVER_VERSION	"15 Dec 2004"
+
+
+#ifndef DEBUG
+#	define	STUB_DEBUG_FILE
+#endif
+
+/* for now, use only one transfer register bank */
+#undef	USE_B
+
+/* this doesn't understand urb->iso_frame_desc[], but if you had a driver
+ * that just queued one ISO frame per URB then iso transfers "should" work
+ * using the normal urb status fields.
+ */
+#define	DISABLE_ISO
+
+#define	QUIRK2
+//#define	QUIRK3
+
+static const char hcd_name[] = "sl811-hcd";
+
+/*-------------------------------------------------------------------------*/
+
+
+static void port_power(struct sl811 *sl811, int is_on)
+{
+	struct usb_hcd	*hcd = sl811_to_hcd(sl811);
+
+	/* hub is inactive unless the port is powered */
+	if (is_on) {
+		if (sl811->port1 & (1 << USB_PORT_FEAT_POWER))
+			return;
+
+		sl811->port1 = (1 << USB_PORT_FEAT_POWER);
+		sl811->irq_enable = SL11H_INTMASK_INSRMV;
+		hcd->self.controller->power.power_state = PMSG_ON;
+	} else {
+		sl811->port1 = 0;
+		sl811->irq_enable = 0;
+		hcd->state = HC_STATE_HALT;
+		hcd->self.controller->power.power_state = PMSG_SUSPEND;
+	}
+	sl811->ctrl1 = 0;
+	sl811_write(sl811, SL11H_IRQ_ENABLE, 0);
+	sl811_write(sl811, SL11H_IRQ_STATUS, ~0);
+
+	if (sl811->board && sl811->board->port_power) {
+		/* switch VBUS, at 500mA unless hub power budget gets set */
+		DBG("power %s\n", is_on ? "on" : "off");
+		sl811->board->port_power(hcd->self.controller, is_on);
+	}
+
+	/* reset as thoroughly as we can */
+	if (sl811->board && sl811->board->reset)
+		sl811->board->reset(hcd->self.controller);
+
+	sl811_write(sl811, SL11H_IRQ_ENABLE, 0);
+	sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1);
+	sl811_write(sl811, SL811HS_CTLREG2, SL811HS_CTL2_INIT);
+	sl811_write(sl811, SL11H_IRQ_ENABLE, sl811->irq_enable);
+
+	// if !is_on, put into lowpower mode now
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* This is a PIO-only HCD.  Queueing appends URBs to the endpoint's queue,
+ * and may start I/O.  Endpoint queues are scanned during completion irq
+ * handlers (one per packet: ACK, NAK, faults, etc) and urb cancelation.
+ *
+ * Using an external DMA engine to copy a packet at a time could work,
+ * though setup/teardown costs may be too big to make it worthwhile.
+ */
+
+/* SETUP starts a new control request.  Devices are not allowed to
+ * STALL or NAK these; they must cancel any pending control requests.
+ */
+static void setup_packet(
+	struct sl811		*sl811,
+	struct sl811h_ep	*ep,
+	struct urb		*urb,
+	u8			bank,
+	u8			control
+)
+{
+	u8			addr;
+	u8			len;
+	void __iomem		*data_reg;
+
+	addr = SL811HS_PACKET_BUF(bank == 0);
+	len = sizeof(struct usb_ctrlrequest);
+	data_reg = sl811->data_reg;
+	sl811_write_buf(sl811, addr, urb->setup_packet, len);
+
+	/* autoincrementing */
+	sl811_write(sl811, bank + SL11H_BUFADDRREG, addr);
+	writeb(len, data_reg);
+	writeb(SL_SETUP /* | ep->epnum */, data_reg);
+	writeb(usb_pipedevice(urb->pipe), data_reg);
+
+	/* always OUT/data0 */ ;
+	sl811_write(sl811, bank + SL11H_HOSTCTLREG,
+			control | SL11H_HCTLMASK_OUT);
+	ep->length = 0;
+	PACKET("SETUP qh%p\n", ep);
+}
+
+/* STATUS finishes control requests, often after IN or OUT data packets */
+static void status_packet(
+	struct sl811		*sl811,
+	struct sl811h_ep	*ep,
+	struct urb		*urb,
+	u8			bank,
+	u8			control
+)
+{
+	int			do_out;
+	void __iomem		*data_reg;
+
+	do_out = urb->transfer_buffer_length && usb_pipein(urb->pipe);
+	data_reg = sl811->data_reg;
+
+	/* autoincrementing */
+	sl811_write(sl811, bank + SL11H_BUFADDRREG, 0);
+	writeb(0, data_reg);
+	writeb((do_out ? SL_OUT : SL_IN) /* | ep->epnum */, data_reg);
+	writeb(usb_pipedevice(urb->pipe), data_reg);
+
+	/* always data1; sometimes IN */
+	control |= SL11H_HCTLMASK_TOGGLE;
+	if (do_out)
+		control |= SL11H_HCTLMASK_OUT;
+	sl811_write(sl811, bank + SL11H_HOSTCTLREG, control);
+	ep->length = 0;
+	PACKET("STATUS%s/%s qh%p\n", ep->nak_count ? "/retry" : "",
+			do_out ? "out" : "in", ep);
+}
+
+/* IN packets can be used with any type of endpoint. here we just
+ * start the transfer, data from the peripheral may arrive later.
+ * urb->iso_frame_desc is currently ignored here...
+ */
+static void in_packet(
+	struct sl811		*sl811,
+	struct sl811h_ep	*ep,
+	struct urb		*urb,
+	u8			bank,
+	u8			control
+)
+{
+	u8			addr;
+	u8			len;
+	void __iomem		*data_reg;
+
+	/* avoid losing data on overflow */
+	len = ep->maxpacket;
+	addr = SL811HS_PACKET_BUF(bank == 0);
+	if (!(control & SL11H_HCTLMASK_ISOCH)
+			&& usb_gettoggle(urb->dev, ep->epnum, 0))
+		control |= SL11H_HCTLMASK_TOGGLE;
+	data_reg = sl811->data_reg;
+
+	/* autoincrementing */
+	sl811_write(sl811, bank + SL11H_BUFADDRREG, addr);
+	writeb(len, data_reg);
+	writeb(SL_IN | ep->epnum, data_reg);
+	writeb(usb_pipedevice(urb->pipe), data_reg);
+
+	sl811_write(sl811, bank + SL11H_HOSTCTLREG, control);
+	ep->length = min((int)len,
+			urb->transfer_buffer_length - urb->actual_length);
+	PACKET("IN%s/%d qh%p len%d\n", ep->nak_count ? "/retry" : "",
+			!!usb_gettoggle(urb->dev, ep->epnum, 0), ep, len);
+}
+
+/* OUT packets can be used with any type of endpoint.
+ * urb->iso_frame_desc is currently ignored here...
+ */
+static void out_packet(
+	struct sl811		*sl811,
+	struct sl811h_ep	*ep,
+	struct urb		*urb,
+	u8			bank,
+	u8			control
+)
+{
+	void			*buf;
+	u8			addr;
+	u8			len;
+	void __iomem		*data_reg;
+
+	buf = urb->transfer_buffer + urb->actual_length;
+	prefetch(buf);
+
+	len = min((int)ep->maxpacket,
+			urb->transfer_buffer_length - urb->actual_length);
+
+	if (!(control & SL11H_HCTLMASK_ISOCH)
+			&& usb_gettoggle(urb->dev, ep->epnum, 1))
+		control |= SL11H_HCTLMASK_TOGGLE;
+	addr = SL811HS_PACKET_BUF(bank == 0);
+	data_reg = sl811->data_reg;
+
+	sl811_write_buf(sl811, addr, buf, len);
+
+	/* autoincrementing */
+	sl811_write(sl811, bank + SL11H_BUFADDRREG, addr);
+	writeb(len, data_reg);
+	writeb(SL_OUT | ep->epnum, data_reg);
+	writeb(usb_pipedevice(urb->pipe), data_reg);
+
+	sl811_write(sl811, bank + SL11H_HOSTCTLREG,
+			control | SL11H_HCTLMASK_OUT);
+	ep->length = len;
+	PACKET("OUT%s/%d qh%p len%d\n", ep->nak_count ? "/retry" : "",
+			!!usb_gettoggle(urb->dev, ep->epnum, 1), ep, len);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* caller updates on-chip enables later */
+
+static inline void sofirq_on(struct sl811 *sl811)
+{
+	if (sl811->irq_enable & SL11H_INTMASK_SOFINTR)
+		return;
+	VDBG("sof irq on\n");
+	sl811->irq_enable |= SL11H_INTMASK_SOFINTR;
+}
+
+static inline void sofirq_off(struct sl811 *sl811)
+{
+	if (!(sl811->irq_enable & SL11H_INTMASK_SOFINTR))
+		return;
+	VDBG("sof irq off\n");
+	sl811->irq_enable &= ~SL11H_INTMASK_SOFINTR;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* pick the next endpoint for a transaction, and issue it.
+ * frames start with periodic transfers (after whatever is pending
+ * from the previous frame), and the rest of the time is async
+ * transfers, scheduled round-robin.
+ */
+static struct sl811h_ep	*start(struct sl811 *sl811, u8 bank)
+{
+	struct sl811h_ep	*ep;
+	struct urb		*urb;
+	int			fclock;
+	u8			control;
+
+	/* use endpoint at schedule head */
+	if (sl811->next_periodic) {
+		ep = sl811->next_periodic;
+		sl811->next_periodic = ep->next;
+	} else {
+		if (sl811->next_async)
+			ep = sl811->next_async;
+		else if (!list_empty(&sl811->async))
+			ep = container_of(sl811->async.next,
+					struct sl811h_ep, schedule);
+		else {
+			/* could set up the first fullspeed periodic
+			 * transfer for the next frame ...
+			 */
+			return NULL;
+		}
+
+#ifdef USE_B
+		if ((bank && sl811->active_b == ep) || sl811->active_a == ep)
+			return NULL;
+#endif
+
+		if (ep->schedule.next == &sl811->async)
+			sl811->next_async = NULL;
+		else
+			sl811->next_async = container_of(ep->schedule.next,
+					struct sl811h_ep, schedule);
+	}
+
+	if (unlikely(list_empty(&ep->hep->urb_list))) {
+		DBG("empty %p queue?\n", ep);
+		return NULL;
+	}
+
+	urb = container_of(ep->hep->urb_list.next, struct urb, urb_list);
+	control = ep->defctrl;
+
+	/* if this frame doesn't have enough time left to transfer this
+	 * packet, wait till the next frame.  too-simple algorithm...
+	 */
+	fclock = sl811_read(sl811, SL11H_SOFTMRREG) << 6;
+	fclock -= 100;		/* setup takes not much time */
+	if (urb->dev->speed == USB_SPEED_LOW) {
+		if (control & SL11H_HCTLMASK_PREAMBLE) {
+			/* also note erratum 1: some hubs won't work */
+			fclock -= 800;
+		}
+		fclock -= ep->maxpacket << 8;
+
+		/* erratum 2: AFTERSOF only works for fullspeed */
+		if (fclock < 0) {
+			if (ep->period)
+				sl811->stat_overrun++;
+			sofirq_on(sl811);
+			return NULL;
+		}
+	} else {
+		fclock -= 12000 / 19;	/* 19 64byte packets/msec */
+		if (fclock < 0) {
+			if (ep->period)
+				sl811->stat_overrun++;
+			control |= SL11H_HCTLMASK_AFTERSOF;
+
+		/* throttle bulk/control irq noise */
+		} else if (ep->nak_count)
+			control |= SL11H_HCTLMASK_AFTERSOF;
+	}
+
+
+	switch (ep->nextpid) {
+	case USB_PID_IN:
+		in_packet(sl811, ep, urb, bank, control);
+		break;
+	case USB_PID_OUT:
+		out_packet(sl811, ep, urb, bank, control);
+		break;
+	case USB_PID_SETUP:
+		setup_packet(sl811, ep, urb, bank, control);
+		break;
+	case USB_PID_ACK:		/* for control status */
+		status_packet(sl811, ep, urb, bank, control);
+		break;
+	default:
+		DBG("bad ep%p pid %02x\n", ep, ep->nextpid);
+		ep = NULL;
+	}
+	return ep;
+}
+
+#define MIN_JIFFIES	((msecs_to_jiffies(2) > 1) ? msecs_to_jiffies(2) : 2)
+
+static inline void start_transfer(struct sl811 *sl811)
+{
+	if (sl811->port1 & (1 << USB_PORT_FEAT_SUSPEND))
+		return;
+	if (sl811->active_a == NULL) {
+		sl811->active_a = start(sl811, SL811_EP_A(SL811_HOST_BUF));
+		if (sl811->active_a != NULL)
+			sl811->jiffies_a = jiffies + MIN_JIFFIES;
+	}
+#ifdef USE_B
+	if (sl811->active_b == NULL) {
+		sl811->active_b = start(sl811, SL811_EP_B(SL811_HOST_BUF));
+		if (sl811->active_b != NULL)
+			sl811->jiffies_b = jiffies + MIN_JIFFIES;
+	}
+#endif
+}
+
+static void finish_request(
+	struct sl811		*sl811,
+	struct sl811h_ep	*ep,
+	struct urb		*urb,
+	struct pt_regs		*regs,
+	int			status
+) __releases(sl811->lock) __acquires(sl811->lock)
+{
+	unsigned		i;
+
+	if (usb_pipecontrol(urb->pipe))
+		ep->nextpid = USB_PID_SETUP;
+
+	spin_lock(&urb->lock);
+	if (urb->status == -EINPROGRESS)
+		urb->status = status;
+	spin_unlock(&urb->lock);
+
+	spin_unlock(&sl811->lock);
+	usb_hcd_giveback_urb(sl811_to_hcd(sl811), urb, regs);
+	spin_lock(&sl811->lock);
+
+	/* leave active endpoints in the schedule */
+	if (!list_empty(&ep->hep->urb_list))
+		return;
+
+	/* async deschedule? */
+	if (!list_empty(&ep->schedule)) {
+		list_del_init(&ep->schedule);
+		if (ep == sl811->next_async)
+			sl811->next_async = NULL;
+		return;
+	}
+
+	/* periodic deschedule */
+	DBG("deschedule qh%d/%p branch %d\n", ep->period, ep, ep->branch);
+	for (i = ep->branch; i < PERIODIC_SIZE; i += ep->period) {
+		struct sl811h_ep	*temp;
+		struct sl811h_ep	**prev = &sl811->periodic[i];
+
+		while (*prev && ((temp = *prev) != ep))
+			prev = &temp->next;
+		if (*prev)
+			*prev = ep->next;
+		sl811->load[i] -= ep->load;
+	}	
+	ep->branch = PERIODIC_SIZE;
+	sl811->periodic_count--;
+	sl811_to_hcd(sl811)->self.bandwidth_allocated
+		-= ep->load / ep->period;
+	if (ep == sl811->next_periodic)
+		sl811->next_periodic = ep->next;
+
+	/* we might turn SOFs back on again for the async schedule */
+	if (sl811->periodic_count == 0)
+		sofirq_off(sl811);
+}
+
+static void
+done(struct sl811 *sl811, struct sl811h_ep *ep, u8 bank, struct pt_regs *regs)
+{
+	u8			status;
+	struct urb		*urb;
+	int			urbstat = -EINPROGRESS;
+
+	if (unlikely(!ep))
+		return;
+
+	status = sl811_read(sl811, bank + SL11H_PKTSTATREG);
+
+	urb = container_of(ep->hep->urb_list.next, struct urb, urb_list);
+
+	/* we can safely ignore NAKs */
+	if (status & SL11H_STATMASK_NAK) {
+		// PACKET("...NAK_%02x qh%p\n", bank, ep);
+		if (!ep->period)
+			ep->nak_count++;
+		ep->error_count = 0;
+
+	/* ACK advances transfer, toggle, and maybe queue */
+	} else if (status & SL11H_STATMASK_ACK) {
+		struct usb_device	*udev = urb->dev;
+		int			len;
+		unsigned char		*buf;
+
+		/* urb->iso_frame_desc is currently ignored here... */
+
+		ep->nak_count = ep->error_count = 0;
+		switch (ep->nextpid) {
+		case USB_PID_OUT:
+			// PACKET("...ACK/out_%02x qh%p\n", bank, ep);
+			urb->actual_length += ep->length;
+			usb_dotoggle(udev, ep->epnum, 1);
+			if (urb->actual_length
+					== urb->transfer_buffer_length) {
+				if (usb_pipecontrol(urb->pipe))
+					ep->nextpid = USB_PID_ACK;
+
+				/* some bulk protocols terminate OUT transfers
+				 * by a short packet, using ZLPs not padding.
+				 */
+				else if (ep->length < ep->maxpacket
+						|| !(urb->transfer_flags
+							& URB_ZERO_PACKET))
+					urbstat = 0;
+			}
+			break;
+		case USB_PID_IN:
+			// PACKET("...ACK/in_%02x qh%p\n", bank, ep);
+			buf = urb->transfer_buffer + urb->actual_length;
+			prefetchw(buf);
+			len = ep->maxpacket - sl811_read(sl811,
+						bank + SL11H_XFERCNTREG);
+			if (len > ep->length) {
+				len = ep->length;
+				urb->status = -EOVERFLOW;
+			}
+			urb->actual_length += len;
+			sl811_read_buf(sl811, SL811HS_PACKET_BUF(bank == 0),
+					buf, len);
+			usb_dotoggle(udev, ep->epnum, 0);
+			if (urb->actual_length == urb->transfer_buffer_length)
+				urbstat = 0;
+			else if (len < ep->maxpacket) {
+				if (urb->transfer_flags & URB_SHORT_NOT_OK)
+					urbstat = -EREMOTEIO;
+				else
+					urbstat = 0;
+			}
+			if (usb_pipecontrol(urb->pipe)
+					&& (urbstat == -EREMOTEIO
+						|| urbstat == 0)) {
+
+				/* NOTE if the status stage STALLs (why?),
+				 * this reports the wrong urb status.
+				 */
+				spin_lock(&urb->lock);
+				if (urb->status == -EINPROGRESS)
+					urb->status = urbstat;
+				spin_unlock(&urb->lock);
+
+				urb = NULL;
+				ep->nextpid = USB_PID_ACK;
+			}
+			break;
+		case USB_PID_SETUP:
+			// PACKET("...ACK/setup_%02x qh%p\n", bank, ep);
+			if (urb->transfer_buffer_length == urb->actual_length)
+				ep->nextpid = USB_PID_ACK;
+			else if (usb_pipeout(urb->pipe)) {
+				usb_settoggle(udev, 0, 1, 1);
+				ep->nextpid = USB_PID_OUT;
+			} else {
+				usb_settoggle(udev, 0, 0, 1);
+				ep->nextpid = USB_PID_IN;
+			}
+			break;
+		case USB_PID_ACK:
+			// PACKET("...ACK/status_%02x qh%p\n", bank, ep);
+			urbstat = 0;
+			break;
+		}
+
+	/* STALL stops all transfers */
+	} else if (status & SL11H_STATMASK_STALL) {
+		PACKET("...STALL_%02x qh%p\n", bank, ep);
+		ep->nak_count = ep->error_count = 0;
+		urbstat = -EPIPE;
+
+	/* error? retry, until "3 strikes" */
+	} else if (++ep->error_count >= 3) {
+		if (status & SL11H_STATMASK_TMOUT)
+			urbstat = -ETIMEDOUT;
+		else if (status & SL11H_STATMASK_OVF)
+			urbstat = -EOVERFLOW;
+		else
+			urbstat = -EPROTO;
+		ep->error_count = 0;
+		PACKET("...3STRIKES_%02x %02x qh%p stat %d\n",
+				bank, status, ep, urbstat);
+	}
+
+	if (urb && (urbstat != -EINPROGRESS || urb->status != -EINPROGRESS))
+		finish_request(sl811, ep, urb, regs, urbstat);
+}
+
+static inline u8 checkdone(struct sl811 *sl811)
+{
+	u8	ctl;
+	u8	irqstat = 0;
+
+	if (sl811->active_a && time_before_eq(sl811->jiffies_a, jiffies)) {
+		ctl = sl811_read(sl811, SL811_EP_A(SL11H_HOSTCTLREG));
+		if (ctl & SL11H_HCTLMASK_ARM)
+			sl811_write(sl811, SL811_EP_A(SL11H_HOSTCTLREG), 0);
+		DBG("%s DONE_A: ctrl %02x sts %02x\n",
+			(ctl & SL11H_HCTLMASK_ARM) ? "timeout" : "lost",
+			ctl,
+			sl811_read(sl811, SL811_EP_A(SL11H_PKTSTATREG)));
+		irqstat |= SL11H_INTMASK_DONE_A;
+	}
+#ifdef	USE_B
+	if (sl811->active_b && time_before_eq(sl811->jiffies_b, jiffies)) {
+		ctl = sl811_read(sl811, SL811_EP_B(SL11H_HOSTCTLREG));
+		if (ctl & SL11H_HCTLMASK_ARM)
+			sl811_write(sl811, SL811_EP_B(SL11H_HOSTCTLREG), 0);
+		DBG("%s DONE_B: ctrl %02x sts %02x\n",
+			(ctl & SL11H_HCTLMASK_ARM) ? "timeout" : "lost",
+			ctl,
+			sl811_read(sl811, SL811_EP_B(SL11H_PKTSTATREG)));
+		irqstat |= SL11H_INTMASK_DONE_A;
+	}
+#endif
+	return irqstat;
+}
+
+static irqreturn_t sl811h_irq(struct usb_hcd *hcd, struct pt_regs *regs)
+{
+	struct sl811	*sl811 = hcd_to_sl811(hcd);
+	u8		irqstat;
+	irqreturn_t	ret = IRQ_NONE;
+	unsigned	retries = 5;
+
+	spin_lock(&sl811->lock);
+
+retry:
+	irqstat = sl811_read(sl811, SL11H_IRQ_STATUS) & ~SL11H_INTMASK_DP;
+	if (irqstat) {
+		sl811_write(sl811, SL11H_IRQ_STATUS, irqstat);
+		irqstat &= sl811->irq_enable;
+	}
+
+#ifdef	QUIRK2
+	/* this may no longer be necessary ... */
+	if (irqstat == 0 && ret == IRQ_NONE) {
+		irqstat = checkdone(sl811);
+		if (irqstat /* && irq != ~0 */ )
+			sl811->stat_lost++;
+	}
+#endif
+
+	/* USB packets, not necessarily handled in the order they're
+	 * issued ... that's fine if they're different endpoints.
+	 */
+	if (irqstat & SL11H_INTMASK_DONE_A) {
+		done(sl811, sl811->active_a, SL811_EP_A(SL811_HOST_BUF), regs);
+		sl811->active_a = NULL;
+		sl811->stat_a++;
+	}
+#ifdef USE_B
+	if (irqstat & SL11H_INTMASK_DONE_B) {
+		done(sl811, sl811->active_b, SL811_EP_B(SL811_HOST_BUF), regs);
+		sl811->active_b = NULL;
+		sl811->stat_b++;
+	}
+#endif
+	if (irqstat & SL11H_INTMASK_SOFINTR) {
+		unsigned index;
+
+		index = sl811->frame++ % (PERIODIC_SIZE - 1);
+		sl811->stat_sof++;
+
+		/* be graceful about almost-inevitable periodic schedule
+		 * overruns:  continue the previous frame's transfers iff
+		 * this one has nothing scheduled.
+		 */
+		if (sl811->next_periodic) {
+			// ERR("overrun to slot %d\n", index);
+			sl811->stat_overrun++;
+		}
+		if (sl811->periodic[index])
+			sl811->next_periodic = sl811->periodic[index];
+	}
+
+	/* khubd manages debouncing and wakeup */
+	if (irqstat & SL11H_INTMASK_INSRMV) {
+		sl811->stat_insrmv++;
+
+		/* most stats are reset for each VBUS session */
+		sl811->stat_wake = 0;
+		sl811->stat_sof = 0;
+		sl811->stat_a = 0;
+		sl811->stat_b = 0;
+		sl811->stat_lost = 0;
+
+		sl811->ctrl1 = 0;
+		sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1);
+
+		sl811->irq_enable = SL11H_INTMASK_INSRMV;
+		sl811_write(sl811, SL11H_IRQ_ENABLE, sl811->irq_enable);
+
+		/* usbcore nukes other pending transactions on disconnect */
+		if (sl811->active_a) {
+			sl811_write(sl811, SL811_EP_A(SL11H_HOSTCTLREG), 0);
+			finish_request(sl811, sl811->active_a,
+				container_of(sl811->active_a->hep->urb_list.next,
+					struct urb, urb_list),
+				NULL, -ESHUTDOWN);
+			sl811->active_a = NULL;
+		}
+#ifdef	USE_B
+		if (sl811->active_b) {
+			sl811_write(sl811, SL811_EP_B(SL11H_HOSTCTLREG), 0);
+			finish_request(sl811, sl811->active_b,
+				container_of(sl811->active_b->hep->urb_list.next,
+					struct urb, urb_list),
+				NULL, -ESHUTDOWN);
+			sl811->active_b = NULL;
+		}
+#endif
+
+		/* port status seems wierd until after reset, so
+		 * force the reset and make khubd clean up later.
+		 */
+		sl811->port1 |= (1 << USB_PORT_FEAT_C_CONNECTION)
+				| (1 << USB_PORT_FEAT_CONNECTION);
+
+	} else if (irqstat & SL11H_INTMASK_RD) {
+		if (sl811->port1 & (1 << USB_PORT_FEAT_SUSPEND)) {
+			DBG("wakeup\n");
+			sl811->port1 |= 1 << USB_PORT_FEAT_C_SUSPEND;
+			sl811->stat_wake++;
+		} else
+			irqstat &= ~SL11H_INTMASK_RD;
+	}
+
+	if (irqstat) {
+		if (sl811->port1 & (1 << USB_PORT_FEAT_ENABLE))
+			start_transfer(sl811);
+		ret = IRQ_HANDLED;
+		if (retries--)
+			goto retry;
+	}
+
+	if (sl811->periodic_count == 0 && list_empty(&sl811->async)) 
+		sofirq_off(sl811);
+	sl811_write(sl811, SL11H_IRQ_ENABLE, sl811->irq_enable);
+
+	spin_unlock(&sl811->lock);
+
+	return ret;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* usb 1.1 says max 90% of a frame is available for periodic transfers.
+ * this driver doesn't promise that much since it's got to handle an
+ * IRQ per packet; irq handling latencies also use up that time.
+ */
+#define	MAX_PERIODIC_LOAD	500	/* out of 1000 usec */
+
+static int balance(struct sl811 *sl811, u16 period, u16 load)
+{
+	int	i, branch = -ENOSPC;
+
+	/* search for the least loaded schedule branch of that period
+	 * which has enough bandwidth left unreserved.
+	 */
+	for (i = 0; i < period ; i++) {
+		if (branch < 0 || sl811->load[branch] > sl811->load[i]) {
+			int	j;
+
+			for (j = i; j < PERIODIC_SIZE; j += period) {
+				if ((sl811->load[j] + load)
+						> MAX_PERIODIC_LOAD)
+					break;
+			}
+			if (j < PERIODIC_SIZE)
+				continue;
+			branch = i; 
+		}
+	}
+	return branch;
+}
+
+/*-------------------------------------------------------------------------*/
+
+static int sl811h_urb_enqueue(
+	struct usb_hcd		*hcd,
+	struct usb_host_endpoint *hep,
+	struct urb		*urb,
+	int			mem_flags
+) {
+	struct sl811		*sl811 = hcd_to_sl811(hcd);
+	struct usb_device	*udev = urb->dev;
+	unsigned int		pipe = urb->pipe;
+	int			is_out = !usb_pipein(pipe);
+	int			type = usb_pipetype(pipe);
+	int			epnum = usb_pipeendpoint(pipe);
+	struct sl811h_ep	*ep = NULL;
+	unsigned long		flags;
+	int			i;
+	int			retval = 0;
+
+#ifdef	DISABLE_ISO
+	if (type == PIPE_ISOCHRONOUS)
+		return -ENOSPC;
+#endif
+
+	/* avoid all allocations within spinlocks */
+	if (!hep->hcpriv) {
+		ep = kcalloc(1, sizeof *ep, mem_flags);
+		/* set hep, otherwise sl811h_ep	*start(struct sl811 *sl811, u8 bank) crashes */
+		ep->hep = hep;
+	}
+
+	spin_lock_irqsave(&sl811->lock, flags);
+
+	/* don't submit to a dead or disabled port */
+	if (!(sl811->port1 & (1 << USB_PORT_FEAT_ENABLE))
+			|| !HC_IS_RUNNING(hcd->state)) {
+		retval = -ENODEV;
+		goto fail;
+	}
+
+	if (hep->hcpriv) {
+		kfree(ep);
+		ep = hep->hcpriv;
+	} else if (!ep) {
+		retval = -ENOMEM;
+		goto fail;
+
+	} else {
+		INIT_LIST_HEAD(&ep->schedule);
+		ep->udev = usb_get_dev(udev);
+		ep->epnum = epnum;
+		ep->maxpacket = usb_maxpacket(udev, urb->pipe, is_out);
+		ep->defctrl = SL11H_HCTLMASK_ARM | SL11H_HCTLMASK_ENABLE;
+		usb_settoggle(udev, epnum, is_out, 0);
+
+		if (type == PIPE_CONTROL)
+			ep->nextpid = USB_PID_SETUP;
+		else if (is_out)
+			ep->nextpid = USB_PID_OUT;
+		else
+			ep->nextpid = USB_PID_IN;
+
+		if (ep->maxpacket > H_MAXPACKET) {
+			/* iso packets up to 240 bytes could work... */
+			DBG("dev %d ep%d maxpacket %d\n",
+				udev->devnum, epnum, ep->maxpacket);
+			retval = -EINVAL;
+			goto fail;
+		}
+
+		if (udev->speed == USB_SPEED_LOW) {
+			/* send preamble for external hub? */
+			if (!(sl811->ctrl1 & SL11H_CTL1MASK_LSPD))
+				ep->defctrl |= SL11H_HCTLMASK_PREAMBLE;
+		}
+		switch (type) {
+		case PIPE_ISOCHRONOUS:
+		case PIPE_INTERRUPT:
+			if (urb->interval > PERIODIC_SIZE)
+				urb->interval = PERIODIC_SIZE;
+			ep->period = urb->interval;
+			ep->branch = PERIODIC_SIZE;
+			if (type == PIPE_ISOCHRONOUS)
+				ep->defctrl |= SL11H_HCTLMASK_ISOCH;
+			ep->load = usb_calc_bus_time(udev->speed, !is_out,
+				(type == PIPE_ISOCHRONOUS),
+				usb_maxpacket(udev, pipe, is_out))
+					/ 1000;
+			break;
+		}
+
+		hep->hcpriv = ep;
+	}
+
+	/* maybe put endpoint into schedule */
+	switch (type) {
+	case PIPE_CONTROL:
+	case PIPE_BULK:
+		if (list_empty(&ep->schedule))
+			list_add_tail(&ep->schedule, &sl811->async);
+		break;
+	case PIPE_ISOCHRONOUS:
+	case PIPE_INTERRUPT:
+		urb->interval = ep->period;
+		if (ep->branch < PERIODIC_SIZE)
+			break;
+
+		retval = balance(sl811, ep->period, ep->load);
+		if (retval < 0)
+			goto fail;
+		ep->branch = retval;
+		retval = 0;
+		urb->start_frame = (sl811->frame & (PERIODIC_SIZE - 1))
+					+ ep->branch;
+
+		/* sort each schedule branch by period (slow before fast)
+		 * to share the faster parts of the tree without needing
+		 * dummy/placeholder nodes
+		 */
+		DBG("schedule qh%d/%p branch %d\n", ep->period, ep, ep->branch);
+		for (i = ep->branch; i < PERIODIC_SIZE; i += ep->period) {
+			struct sl811h_ep	**prev = &sl811->periodic[i];
+			struct sl811h_ep	*here = *prev;
+
+			while (here && ep != here) {
+				if (ep->period > here->period)
+					break;
+				prev = &here->next;
+				here = *prev;
+			}
+			if (ep != here) {
+				ep->next = here;
+				*prev = ep;
+			}
+			sl811->load[i] += ep->load;
+		}
+		sl811->periodic_count++;
+		hcd->self.bandwidth_allocated += ep->load / ep->period;
+		sofirq_on(sl811);
+	}
+
+	/* in case of unlink-during-submit */
+	spin_lock(&urb->lock);
+	if (urb->status != -EINPROGRESS) {
+		spin_unlock(&urb->lock);
+		finish_request(sl811, ep, urb, NULL, 0);
+		retval = 0;
+		goto fail;
+	}
+	
+	/* when uncommented, causes this error on mouse open: 
+		drivers/usb/input/usbmouse.c: can't resubmit intr, sl811-hcd-1/input0, status -22
+		urb->hcpriv = hep;  */
+	
+	spin_unlock(&urb->lock);
+
+	start_transfer(sl811);
+	sl811_write(sl811, SL11H_IRQ_ENABLE, sl811->irq_enable);
+fail:
+	spin_unlock_irqrestore(&sl811->lock, flags);
+	return retval;
+}
+
+static int sl811h_urb_dequeue(struct usb_hcd *hcd, struct urb *urb)
+{
+	struct sl811		*sl811 = hcd_to_sl811(hcd);
+	struct usb_host_endpoint *hep = urb->hcpriv;
+	unsigned long		flags;
+	struct sl811h_ep	*ep;
+	int			retval = 0;
+
+	if (!hep)
+		return -EINVAL;
+
+	spin_lock_irqsave(&sl811->lock, flags);
+	ep = hep->hcpriv;
+	if (ep) {
+		/* finish right away if this urb can't be active ...
+		 * note that some drivers wrongly expect delays
+		 */
+		if (ep->hep->urb_list.next != &urb->urb_list) {
+			/* not front of queue?  never active */
+
+		/* for active transfers, we expect an IRQ */
+		} else if (sl811->active_a == ep) {
+			if (time_before_eq(sl811->jiffies_a, jiffies)) {
+				/* happens a lot with lowspeed?? */
+				DBG("giveup on DONE_A: ctrl %02x sts %02x\n",
+					sl811_read(sl811,
+						SL811_EP_A(SL11H_HOSTCTLREG)),
+					sl811_read(sl811,
+						SL811_EP_A(SL11H_PKTSTATREG)));
+				sl811_write(sl811, SL811_EP_A(SL11H_HOSTCTLREG),
+						0);
+				sl811->active_a = NULL;
+			} else
+				urb = NULL;
+#ifdef	USE_B
+		} else if (sl811->active_b == ep) {
+			if (time_before_eq(sl811->jiffies_a, jiffies)) {
+				/* happens a lot with lowspeed?? */
+				DBG("giveup on DONE_B: ctrl %02x sts %02x\n",
+					sl811_read(sl811,
+						SL811_EP_B(SL11H_HOSTCTLREG)),
+					sl811_read(sl811,
+						SL811_EP_B(SL11H_PKTSTATREG)));
+				sl811_write(sl811, SL811_EP_B(SL11H_HOSTCTLREG),
+						0);
+				sl811->active_b = NULL;
+			} else
+				urb = NULL;
+#endif
+		} else {
+			/* front of queue for inactive endpoint */
+		}
+
+		if (urb)
+			finish_request(sl811, ep, urb, NULL, 0);
+		else
+			VDBG("dequeue, urb %p active %s; wait4irq\n", urb,
+				(sl811->active_a == ep) ? "A" : "B");
+	} else
+		retval = -EINVAL;
+	spin_unlock_irqrestore(&sl811->lock, flags);
+	return retval;
+}
+
+static void
+sl811h_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *hep)
+{
+	struct sl811h_ep	*ep = hep->hcpriv;
+
+	if (!ep)
+		return;
+
+	/* assume we'd just wait for the irq */
+	if (!list_empty(&hep->urb_list))
+		msleep(3);
+	if (!list_empty(&hep->urb_list))
+		WARN("ep %p not empty?\n", ep);
+
+	usb_put_dev(ep->udev);
+	kfree(ep);
+	hep->hcpriv = NULL;
+}
+
+static int
+sl811h_get_frame(struct usb_hcd *hcd)
+{
+	struct sl811 *sl811 = hcd_to_sl811(hcd);
+
+	/* wrong except while periodic transfers are scheduled;
+	 * never matches the on-the-wire frame;
+	 * subject to overruns.
+	 */
+	return sl811->frame;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+/* the virtual root hub timer IRQ checks for hub status */
+static int
+sl811h_hub_status_data(struct usb_hcd *hcd, char *buf)
+{
+	struct sl811 *sl811 = hcd_to_sl811(hcd);
+#ifdef	QUIRK3
+	unsigned long flags;
+
+	/* non-SMP HACK: use root hub timer as i/o watchdog
+	 * this seems essential when SOF IRQs aren't in use...
+	 */
+	local_irq_save(flags);
+	if (!timer_pending(&sl811->timer)) {
+		if (sl811h_irq( /* ~0, */ hcd, NULL) != IRQ_NONE)
+			sl811->stat_lost++;
+	}
+	local_irq_restore(flags);
+#endif
+
+	if (!(sl811->port1 & (0xffff << 16)))
+		return 0;
+
+	/* tell khubd port 1 changed */
+	*buf = (1 << 1);
+	return 1;
+}
+
+static void
+sl811h_hub_descriptor (
+	struct sl811			*sl811,
+	struct usb_hub_descriptor	*desc
+) {
+	u16		temp = 0;
+
+	desc->bDescriptorType = 0x29;
+	desc->bHubContrCurrent = 0;
+
+	desc->bNbrPorts = 1;
+	desc->bDescLength = 9;
+
+	/* per-port power switching (gang of one!), or none */
+	desc->bPwrOn2PwrGood = 0;
+	if (sl811->board && sl811->board->port_power) {
+		desc->bPwrOn2PwrGood = sl811->board->potpg;
+		if (!desc->bPwrOn2PwrGood)
+			desc->bPwrOn2PwrGood = 10;
+		temp = 0x0001;
+	} else
+		temp = 0x0002;
+
+	/* no overcurrent errors detection/handling */
+	temp |= 0x0010;
+
+	desc->wHubCharacteristics = (__force __u16)cpu_to_le16(temp);
+
+	/* two bitmaps:  ports removable, and legacy PortPwrCtrlMask */
+	desc->bitmap[0] = 1 << 1;
+	desc->bitmap[1] = ~0;
+}
+
+static void
+sl811h_timer(unsigned long _sl811)
+{
+	struct sl811 	*sl811 = (void *) _sl811;
+	unsigned long	flags;
+	u8		irqstat;
+	u8		signaling = sl811->ctrl1 & SL11H_CTL1MASK_FORCE;
+	const u32	mask = (1 << USB_PORT_FEAT_CONNECTION)
+				| (1 << USB_PORT_FEAT_ENABLE)
+				| (1 << USB_PORT_FEAT_LOWSPEED);
+
+	spin_lock_irqsave(&sl811->lock, flags);
+
+	/* stop special signaling */
+	sl811->ctrl1 &= ~SL11H_CTL1MASK_FORCE;
+	sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1);
+	udelay(3);
+
+	irqstat = sl811_read(sl811, SL11H_IRQ_STATUS);
+
+	switch (signaling) {
+	case SL11H_CTL1MASK_SE0:
+		DBG("end reset\n");
+		sl811->port1 = (1 << USB_PORT_FEAT_C_RESET)
+				| (1 << USB_PORT_FEAT_POWER);
+		sl811->ctrl1 = 0;
+		/* don't wrongly ack RD */
+		if (irqstat & SL11H_INTMASK_INSRMV)
+			irqstat &= ~SL11H_INTMASK_RD;
+		break;
+	case SL11H_CTL1MASK_K:
+		DBG("end resume\n");
+		sl811->port1 &= ~(1 << USB_PORT_FEAT_SUSPEND);
+		break;
+	default:
+		DBG("odd timer signaling: %02x\n", signaling);
+		break;
+	}
+	sl811_write(sl811, SL11H_IRQ_STATUS, irqstat);
+
+	if (irqstat & SL11H_INTMASK_RD) {
+		/* usbcore nukes all pending transactions on disconnect */
+		if (sl811->port1 & (1 << USB_PORT_FEAT_CONNECTION))
+			sl811->port1 |= (1 << USB_PORT_FEAT_C_CONNECTION)
+					| (1 << USB_PORT_FEAT_C_ENABLE);
+		sl811->port1 &= ~mask;
+		sl811->irq_enable = SL11H_INTMASK_INSRMV;
+	} else {
+		sl811->port1 |= mask;
+		if (irqstat & SL11H_INTMASK_DP)
+			sl811->port1 &= ~(1 << USB_PORT_FEAT_LOWSPEED);
+		sl811->irq_enable = SL11H_INTMASK_INSRMV | SL11H_INTMASK_RD;
+	}
+
+	if (sl811->port1 & (1 << USB_PORT_FEAT_CONNECTION)) {
+		u8	ctrl2 = SL811HS_CTL2_INIT;
+
+		sl811->irq_enable |= SL11H_INTMASK_DONE_A;
+#ifdef USE_B
+		sl811->irq_enable |= SL11H_INTMASK_DONE_B;
+#endif
+		if (sl811->port1 & (1 << USB_PORT_FEAT_LOWSPEED)) {
+			sl811->ctrl1 |= SL11H_CTL1MASK_LSPD;
+			ctrl2 |= SL811HS_CTL2MASK_DSWAP;
+		}
+
+		/* start SOFs flowing, kickstarting with A registers */
+		sl811->ctrl1 |= SL11H_CTL1MASK_SOF_ENA;
+		sl811_write(sl811, SL11H_SOFLOWREG, 0xe0);
+		sl811_write(sl811, SL811HS_CTLREG2, ctrl2);
+
+		/* autoincrementing */
+		sl811_write(sl811, SL811_EP_A(SL11H_BUFLNTHREG), 0);
+		writeb(SL_SOF, sl811->data_reg);
+		writeb(0, sl811->data_reg);
+		sl811_write(sl811, SL811_EP_A(SL11H_HOSTCTLREG),
+				SL11H_HCTLMASK_ARM);
+
+		/* khubd provides debounce delay */
+	} else {
+		sl811->ctrl1 = 0;
+	}
+	sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1);
+
+	/* reenable irqs */
+	sl811_write(sl811, SL11H_IRQ_ENABLE, sl811->irq_enable);
+	spin_unlock_irqrestore(&sl811->lock, flags);
+}
+
+static int
+sl811h_hub_control(
+	struct usb_hcd	*hcd,
+	u16		typeReq,
+	u16		wValue,
+	u16		wIndex,
+	char		*buf,
+	u16		wLength
+) {
+	struct sl811	*sl811 = hcd_to_sl811(hcd);
+	int		retval = 0;
+	unsigned long	flags;
+
+	spin_lock_irqsave(&sl811->lock, flags);
+
+	switch (typeReq) {
+	case ClearHubFeature:
+	case SetHubFeature:
+		switch (wValue) {
+		case C_HUB_OVER_CURRENT:
+		case C_HUB_LOCAL_POWER:
+			break;
+		default:
+			goto error;
+		}
+		break;
+	case ClearPortFeature:
+		if (wIndex != 1 || wLength != 0)
+			goto error;
+
+		switch (wValue) {
+		case USB_PORT_FEAT_ENABLE:
+			sl811->port1 &= (1 << USB_PORT_FEAT_POWER);
+			sl811->ctrl1 = 0;
+			sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1);
+			sl811->irq_enable = SL11H_INTMASK_INSRMV;
+			sl811_write(sl811, SL11H_IRQ_ENABLE,
+						sl811->irq_enable);
+			break;
+		case USB_PORT_FEAT_SUSPEND:
+			if (!(sl811->port1 & (1 << USB_PORT_FEAT_SUSPEND)))
+				break;
+
+			/* 20 msec of resume/K signaling, other irqs blocked */
+			DBG("start resume...\n");
+			sl811->irq_enable = 0;
+			sl811_write(sl811, SL11H_IRQ_ENABLE,
+						sl811->irq_enable);
+			sl811->ctrl1 |= SL11H_CTL1MASK_K;
+			sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1);
+
+			mod_timer(&sl811->timer, jiffies
+					+ msecs_to_jiffies(20));
+			break;
+		case USB_PORT_FEAT_POWER:
+			port_power(sl811, 0);
+			break;
+		case USB_PORT_FEAT_C_ENABLE:
+		case USB_PORT_FEAT_C_SUSPEND:
+		case USB_PORT_FEAT_C_CONNECTION:
+		case USB_PORT_FEAT_C_OVER_CURRENT:
+		case USB_PORT_FEAT_C_RESET:
+			break;
+		default:
+			goto error;
+		}
+		sl811->port1 &= ~(1 << wValue);
+		break;
+	case GetHubDescriptor:
+		sl811h_hub_descriptor(sl811, (struct usb_hub_descriptor *) buf);
+		break;
+	case GetHubStatus:
+		*(__le32 *) buf = cpu_to_le32(0);
+		break;
+	case GetPortStatus:
+		if (wIndex != 1)
+			goto error;
+		*(__le32 *) buf = cpu_to_le32(sl811->port1);
+
+#ifndef	VERBOSE
+	if (*(u16*)(buf+2))	/* only if wPortChange is interesting */
+#endif
+		DBG("GetPortStatus %08x\n", sl811->port1);
+		break;
+	case SetPortFeature:
+		if (wIndex != 1 || wLength != 0)
+			goto error;
+		switch (wValue) {
+		case USB_PORT_FEAT_SUSPEND:
+			if (sl811->port1 & (1 << USB_PORT_FEAT_RESET))
+				goto error;
+			if (!(sl811->port1 & (1 << USB_PORT_FEAT_ENABLE)))
+				goto error;
+
+			DBG("suspend...\n");
+			sl811->ctrl1 &= ~SL11H_CTL1MASK_SOF_ENA;
+			sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1);
+			break;
+		case USB_PORT_FEAT_POWER:
+			port_power(sl811, 1);
+			break;
+		case USB_PORT_FEAT_RESET:
+			if (sl811->port1 & (1 << USB_PORT_FEAT_SUSPEND))
+				goto error;
+			if (!(sl811->port1 & (1 << USB_PORT_FEAT_POWER)))
+				break;
+
+			/* 50 msec of reset/SE0 signaling, irqs blocked */
+			sl811->irq_enable = 0;
+			sl811_write(sl811, SL11H_IRQ_ENABLE,
+						sl811->irq_enable);
+			sl811->ctrl1 = SL11H_CTL1MASK_SE0;
+			sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1);
+			sl811->port1 |= (1 << USB_PORT_FEAT_RESET);
+			mod_timer(&sl811->timer, jiffies
+					+ msecs_to_jiffies(50));
+			break;
+		default:
+			goto error;
+		}
+		sl811->port1 |= 1 << wValue;
+		break;
+
+	default:
+error:
+		/* "protocol stall" on error */
+		retval = -EPIPE;
+	}
+
+	spin_unlock_irqrestore(&sl811->lock, flags);
+	return retval;
+}
+
+#ifdef	CONFIG_PM
+
+static int
+sl811h_hub_suspend(struct usb_hcd *hcd)
+{
+	// SOFs off
+	DBG("%s\n", __FUNCTION__);
+	return 0;
+}
+
+static int
+sl811h_hub_resume(struct usb_hcd *hcd)
+{
+	// SOFs on
+	DBG("%s\n", __FUNCTION__);
+	return 0;
+}
+
+#else
+
+#define	sl811h_hub_suspend	NULL
+#define	sl811h_hub_resume	NULL
+
+#endif
+
+
+/*-------------------------------------------------------------------------*/
+
+#ifdef STUB_DEBUG_FILE
+
+static inline void create_debug_file(struct sl811 *sl811) { }
+static inline void remove_debug_file(struct sl811 *sl811) { }
+
+#else
+
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+
+static void dump_irq(struct seq_file *s, char *label, u8 mask)
+{
+	seq_printf(s, "%s %02x%s%s%s%s%s%s\n", label, mask,
+		(mask & SL11H_INTMASK_DONE_A) ? " done_a" : "",
+		(mask & SL11H_INTMASK_DONE_B) ? " done_b" : "",
+		(mask & SL11H_INTMASK_SOFINTR) ? " sof" : "",
+		(mask & SL11H_INTMASK_INSRMV) ? " ins/rmv" : "",
+		(mask & SL11H_INTMASK_RD) ? " rd" : "",
+		(mask & SL11H_INTMASK_DP) ? " dp" : "");
+}
+
+static int proc_sl811h_show(struct seq_file *s, void *unused)
+{
+	struct sl811		*sl811 = s->private;
+	struct sl811h_ep	*ep;
+	unsigned		i;
+
+	seq_printf(s, "%s\n%s version %s\nportstatus[1] = %08x\n",
+		sl811_to_hcd(sl811)->product_desc,
+		hcd_name, DRIVER_VERSION,
+		sl811->port1);
+
+	seq_printf(s, "insert/remove: %ld\n", sl811->stat_insrmv);
+	seq_printf(s, "current session:  done_a %ld done_b %ld "
+			"wake %ld sof %ld overrun %ld lost %ld\n\n",
+		sl811->stat_a, sl811->stat_b,
+		sl811->stat_wake, sl811->stat_sof,
+		sl811->stat_overrun, sl811->stat_lost);
+
+	spin_lock_irq(&sl811->lock);
+
+	if (sl811->ctrl1 & SL11H_CTL1MASK_SUSPEND)
+		seq_printf(s, "(suspended)\n\n");
+	else {
+		u8	t = sl811_read(sl811, SL11H_CTLREG1);
+
+		seq_printf(s, "ctrl1 %02x%s%s%s%s\n", t,
+			(t & SL11H_CTL1MASK_SOF_ENA) ? " sofgen" : "",
+			({char *s; switch (t & SL11H_CTL1MASK_FORCE) {
+			case SL11H_CTL1MASK_NORMAL: s = ""; break;
+			case SL11H_CTL1MASK_SE0: s = " se0/reset"; break;
+			case SL11H_CTL1MASK_K: s = " k/resume"; break;
+			default: s = "j"; break;
+			}; s; }),
+			(t & SL11H_CTL1MASK_LSPD) ? " lowspeed" : "",
+			(t & SL11H_CTL1MASK_SUSPEND) ? " suspend" : "");
+
+		dump_irq(s, "irq_enable",
+				sl811_read(sl811, SL11H_IRQ_ENABLE));
+		dump_irq(s, "irq_status",
+				sl811_read(sl811, SL11H_IRQ_STATUS));
+		seq_printf(s, "frame clocks remaining:  %d\n",
+				sl811_read(sl811, SL11H_SOFTMRREG) << 6);
+	}
+
+	seq_printf(s, "A: qh%p ctl %02x sts %02x\n", sl811->active_a,
+		sl811_read(sl811, SL811_EP_A(SL11H_HOSTCTLREG)),
+		sl811_read(sl811, SL811_EP_A(SL11H_PKTSTATREG)));
+	seq_printf(s, "B: qh%p ctl %02x sts %02x\n", sl811->active_b,
+		sl811_read(sl811, SL811_EP_B(SL11H_HOSTCTLREG)),
+		sl811_read(sl811, SL811_EP_B(SL11H_PKTSTATREG)));
+	seq_printf(s, "\n");
+	list_for_each_entry (ep, &sl811->async, schedule) {
+		struct urb		*urb;
+
+		seq_printf(s, "%s%sqh%p, ep%d%s, maxpacket %d"
+					" nak %d err %d\n",
+			(ep == sl811->active_a) ? "(A) " : "",
+			(ep == sl811->active_b) ? "(B) " : "",
+			ep, ep->epnum,
+			({ char *s; switch (ep->nextpid) {
+			case USB_PID_IN: s = "in"; break;
+			case USB_PID_OUT: s = "out"; break;
+			case USB_PID_SETUP: s = "setup"; break;
+			case USB_PID_ACK: s = "status"; break;
+			default: s = "?"; break;
+			}; s;}),
+			ep->maxpacket,
+			ep->nak_count, ep->error_count);
+		list_for_each_entry (urb, &ep->hep->urb_list, urb_list) {
+			seq_printf(s, "  urb%p, %d/%d\n", urb,
+				urb->actual_length,
+				urb->transfer_buffer_length);
+		}
+	}
+	if (!list_empty(&sl811->async))
+		seq_printf(s, "\n");
+
+	seq_printf(s, "periodic size= %d\n", PERIODIC_SIZE);
+
+	for (i = 0; i < PERIODIC_SIZE; i++) {
+		ep = sl811->periodic[i];
+		if (!ep)
+			continue;
+		seq_printf(s, "%2d [%3d]:\n", i, sl811->load[i]);
+
+		/* DUMB: prints shared entries multiple times */
+		do {
+			seq_printf(s,
+				"   %s%sqh%d/%p (%sdev%d ep%d%s max %d) "
+					"err %d\n",
+				(ep == sl811->active_a) ? "(A) " : "",
+				(ep == sl811->active_b) ? "(B) " : "",
+				ep->period, ep,
+				(ep->udev->speed == USB_SPEED_FULL)
+					? "" : "ls ",
+				ep->udev->devnum, ep->epnum,
+				(ep->epnum == 0) ? ""
+					: ((ep->nextpid == USB_PID_IN)
+						? "in"
+						: "out"),
+				ep->maxpacket, ep->error_count);
+			ep = ep->next;
+		} while (ep);
+	}
+
+	spin_unlock_irq(&sl811->lock);
+	seq_printf(s, "\n");
+
+	return 0;
+}
+
+static int proc_sl811h_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, proc_sl811h_show, PDE(inode)->data);
+}
+
+static struct file_operations proc_ops = {
+	.open		= proc_sl811h_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+/* expect just one sl811 per system */
+static const char proc_filename[] = "driver/sl811h";
+
+static void create_debug_file(struct sl811 *sl811)
+{
+	struct proc_dir_entry *pde;
+
+	pde = create_proc_entry(proc_filename, 0, NULL);
+	if (pde == NULL)
+		return;
+
+	pde->proc_fops = &proc_ops;
+	pde->data = sl811;
+	sl811->pde = pde;
+}
+
+static void remove_debug_file(struct sl811 *sl811)
+{
+	if (sl811->pde)
+		remove_proc_entry(proc_filename, NULL);
+}
+
+#endif
+
+/*-------------------------------------------------------------------------*/
+
+static void
+sl811h_stop(struct usb_hcd *hcd)
+{
+	struct sl811	*sl811 = hcd_to_sl811(hcd);
+	unsigned long	flags;
+
+	del_timer_sync(&hcd->rh_timer);
+
+	spin_lock_irqsave(&sl811->lock, flags);
+	port_power(sl811, 0);
+	spin_unlock_irqrestore(&sl811->lock, flags);
+}
+
+static int
+sl811h_start(struct usb_hcd *hcd)
+{
+	struct sl811		*sl811 = hcd_to_sl811(hcd);
+
+	/* chip has been reset, VBUS power is off */
+	hcd->state = HC_STATE_RUNNING;
+
+	if (sl811->board) {
+		hcd->can_wakeup = sl811->board->can_wakeup;
+		hcd->power_budget = sl811->board->power * 2;
+	}
+
+	// enable power and interupts	
+	port_power(sl811, 1);
+
+	return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+static struct hc_driver sl811h_hc_driver = {
+	.description =		hcd_name,
+	.hcd_priv_size =	sizeof(struct sl811),
+
+	/*
+	 * generic hardware linkage
+	 */
+	.irq =			sl811h_irq,
+	.flags =		HCD_USB11 | HCD_MEMORY,
+
+	/* Basic lifecycle operations */
+	.start =		sl811h_start,
+	.stop =			sl811h_stop,
+
+	/*
+	 * managing i/o requests and associated device resources
+	 */
+	.urb_enqueue =		sl811h_urb_enqueue,
+	.urb_dequeue =		sl811h_urb_dequeue,
+	.endpoint_disable =	sl811h_endpoint_disable,
+
+	/*
+	 * periodic schedule support
+	 */
+	.get_frame_number =	sl811h_get_frame,
+
+	/*
+	 * root hub support
+	 */
+	.hub_status_data =	sl811h_hub_status_data,
+	.hub_control =		sl811h_hub_control,
+	.hub_suspend =		sl811h_hub_suspend,
+	.hub_resume =		sl811h_hub_resume,
+};
+
+/*-------------------------------------------------------------------------*/
+
+static int __init_or_module
+sl811h_remove(struct device *dev)
+{
+	struct usb_hcd		*hcd = dev_get_drvdata(dev);
+	struct sl811		*sl811 = hcd_to_sl811(hcd);
+	struct platform_device	*pdev;
+	struct resource		*res;
+
+	DBG("sl811h_remove\n");
+	pdev = container_of(dev, struct platform_device, dev);
+
+	remove_debug_file(sl811);
+	usb_remove_hcd(hcd);
+
+#ifndef CONFIG_USB_SL811_CS
+	iounmap(sl811->data_reg);
+#endif
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (res != NULL) release_mem_region(res->start, 1);
+	else DBG("res: %d\n", res);
+#ifndef CONFIG_USB_SL811_CS
+	iounmap(sl811->addr_reg);
+#endif
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res != NULL) release_mem_region(res->start, 1);
+	else DBG("res: %d\n", res);
+
+	usb_put_hcd(hcd);
+	return 0;
+}
+
+#define resource_len(r) (((r)->end - (r)->start) + 1)
+
+/***************************************************************************
+ * This routine tests the Read/Write functionality of SL811HS registers
+ *
+ * 1) Store original register value into a buffer
+ * 2) Write to registers with a RAMP pattern. (10, 11, 12, ..., 255)
+ * 3) Read from register
+ * 4) Compare the written value with the read value and make sure they are
+ *    equivalent
+ * 5) Restore the original register value
+ *
+ * Input:  hci = data structure for the host controller
+ *
+ * Return: 1 = passed; 0 = failed
+ **************************************************************************/
+static int test_registers(struct sl811 * sl811)
+{
+        int i, result = 1;
+        u8 buf[256], data;
+
+        for (i = 0x10; i < 256; i++) {
+                /* save the original buffer */
+                buf[i] = sl811_read(sl811, i);
+
+                /* Write the new data to the buffer */
+                sl811_write(sl811, i, i); 
+        }
+
+        /* compare the written data */
+        for (i = 0x10; i < 256; i++) {
+                data = sl811_read(sl811, i);
+                if (data != i) {
+                        DBG("Pattern test failed!! value = 0x%x, s/b 0x%x\n",
+			    data, i);
+                        result = 0;
+			break;
+                }
+        }
+
+        /* restore the data */
+        for (i = 0x10; i < 256; i++) {
+                sl811_write(sl811, i, buf[i]);
+        }
+
+	return result;
+}
+
+
+int sl811h_probe(struct device *dev)
+{
+	struct usb_hcd		*hcd;
+	struct sl811		*sl811;
+	struct platform_device	*pdev;
+	struct resource		*addr, *data;
+	int			irq;
+	void __iomem		*addr_reg;
+	void __iomem		*data_reg;
+	int			retval;
+	u8			tmp;
+
+	/* basic sanity checks first.  board-specific init logic should
+	 * have initialized these three resources and probably board
+	 * specific platform_data.  we don't probe for IRQs, and do only
+	 * minimal sanity checking.
+	 */
+	pdev = container_of(dev, struct platform_device, dev);
+	if (pdev->num_resources < 3)
+		return -ENODEV;
+
+	addr = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	data = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	irq = platform_get_irq(pdev, 0);
+	if (!addr || !data || irq < 0)
+		return -ENODEV;
+
+	/* refuse to confuse usbcore */
+	if (dev->dma_mask) {
+		DBG("no we won't dma\n");
+		return -EINVAL;
+	}
+
+	if (!request_mem_region(addr->start, 1, hcd_name)) {
+		retval = -EBUSY;
+		goto err1;
+	}
+#ifdef CONFIG_USB_SL811_CS
+	addr_reg = (void *) addr->start;
+#else
+	addr_reg = ioremap(addr->start, resource_len(addr));
+#endif
+	if (addr_reg == NULL) {
+		retval = -ENOMEM;
+		goto err2;
+	}
+
+	if (!request_mem_region(data->start, 1, hcd_name)) {
+		retval = -EBUSY;
+		goto err3;
+	}
+
+#ifdef CONFIG_USB_SL811_CS
+	data_reg = (void *) data->start;
+#else
+	data_reg = ioremap(data->start, resource_len(data));
+#endif
+	if (data_reg == NULL) {
+		retval = -ENOMEM;
+		goto err4;
+	}
+
+	DBG("SL811_HCD: addr_reg: 0x%04x, data_reg: 0x%04x\n",
+	    (int) addr_reg, (int) data_reg);
+
+	/* allocate and initialize hcd */
+	hcd = usb_create_hcd(&sl811h_hc_driver, dev, dev->bus_id);
+	if (!hcd) {
+		retval = -ENOMEM;
+		goto err5;
+	}
+	hcd->rsrc_start = addr->start;
+
+	sl811 = hcd_to_sl811(hcd);
+
+	spin_lock_init(&sl811->lock);
+	INIT_LIST_HEAD(&sl811->async);
+	sl811->board = dev->platform_data;
+	init_timer(&sl811->timer);
+	sl811->timer.function = sl811h_timer;
+	sl811->timer.data = (unsigned long) sl811;
+	sl811->addr_reg = addr_reg;
+	sl811->data_reg = data_reg;
+
+	if (test_registers(sl811) == 0) {
+		DBG("ERROR: register test failed!\n");
+		goto err5;
+	}
+	else DBG("sl811 register test passed.\n");
+
+
+	spin_lock_irq(&sl811->lock);
+	port_power(sl811, 0);
+	spin_unlock_irq(&sl811->lock);
+	msleep(200);
+
+	tmp = sl811_read(sl811, SL11H_HWREVREG);
+	switch (tmp >> 4) {
+	case 1:
+		hcd->product_desc = "SL811HS v1.2";
+		break;
+	case 2:
+		hcd->product_desc = "SL811HS v1.5";
+		break;
+	default:
+		/* reject case 0, SL11S is less functional */
+		DBG("chiprev %02x\n", tmp);
+		retval = -ENXIO;
+		goto err6;
+	}
+	/* sl811s would need a different handler for this irq */
+
+#if !defined(CONFIG_USB_SL811_CS) && defined(CONFIG_ARM)
+	/* Cypress docs say the IRQ is IRQT_HIGH ... */
+	set_irq_type(irq, IRQT_RISING);
+	
+#endif
+	retval = usb_add_hcd(hcd, irq, SA_INTERRUPT);
+	if (retval != 0)
+		goto err6;
+
+	INFO("%s, irq %d\n", hcd->product_desc, irq);
+
+	create_debug_file(sl811);
+	DBG("sl811_hcd initialized\n");
+	return retval;
+
+ err6:
+	usb_put_hcd(hcd);
+ err5:
+
+#ifndef CONFIG_USB_SL811_CS
+	iounmap(data_reg);
+#endif
+ err4:
+	release_mem_region(data->start, 1);
+ err3:
+#ifndef CONFIG_USB_SL811_CS
+	iounmap(addr_reg);
+#endif
+ err2:
+	release_mem_region(addr->start, 1);
+ err1:
+
+	DBG("init error, %d\n", retval);
+	return retval;
+}
+EXPORT_SYMBOL (sl811h_probe);
+
+#ifdef	CONFIG_PM
+
+/* for this device there's no useful distinction between the controller
+ * and its root hub, except that the root hub only gets direct PM calls 
+ * when CONFIG_USB_SUSPEND is enabled.
+ */
+
+static int
+sl811h_suspend(struct device *dev, pm_message_t state, u32 phase)
+{
+	struct usb_hcd	*hcd = dev_get_drvdata(dev);
+	struct sl811	*sl811 = hcd_to_sl811(hcd);
+	int		retval = 0;
+
+	if (phase != SUSPEND_POWER_DOWN)
+		return retval;
+
+	if (state <= PM_SUSPEND_MEM)
+		retval = sl811h_hub_suspend(hcd);
+	else
+		port_power(sl811, 0);
+	if (retval == 0)
+		dev->power.power_state = state;
+	return retval;
+}
+
+static int
+sl811h_resume(struct device *dev, u32 phase)
+{
+	struct usb_hcd	*hcd = dev_get_drvdata(dev);
+	struct sl811	*sl811 = hcd_to_sl811(hcd);
+
+	if (phase != RESUME_POWER_ON)
+		return 0;
+
+	/* with no "check to see if VBUS is still powered" board hook,
+	 * let's assume it'd only be powered to enable remote wakeup.
+	 */
+	if (dev->power.power_state > PM_SUSPEND_MEM
+			|| !hcd->can_wakeup) {
+		sl811->port1 = 0;
+		port_power(sl811, 1);
+		return 0;
+	}
+
+	dev->power.power_state = PMSG_ON;
+	return sl811h_hub_resume(hcd);
+}
+
+#else
+
+#define	sl811h_suspend	NULL
+#define	sl811h_resume	NULL
+
+#endif
+
+
+struct device_driver sl811h_driver = {
+	.name =		(char *) hcd_name,
+	.bus =		&platform_bus_type,
+
+	.probe =	sl811h_probe,
+	.remove =	sl811h_remove,
+
+	.suspend =	sl811h_suspend,
+	.resume =	sl811h_resume,
+};
+EXPORT_SYMBOL(sl811h_driver);
+
+/*-------------------------------------------------------------------------*/
+ 
+static int __init sl811h_init(void) 
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	INFO("driver %s, %s\n", hcd_name, DRIVER_VERSION);
+	return driver_register(&sl811h_driver);
+}
+module_init(sl811h_init);
+
+static void __exit sl811h_cleanup(void) 
+{	
+	driver_unregister(&sl811h_driver);
+}
+module_exit(sl811h_cleanup);