usb: ftdi-elan: Delete driver

This driver didn't see real maintainance since several years. It has
several trivial issues (check $(scripts/checkpatch.pl -f
drivers/usb/misc/ftdi-elan.c)) and some harder ones (difficult locking,
explict kref handling, ...). Also today it's hard to find hardware to
make actually use of such a card and I suspect the driver is completely
unused.

So remove it.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230321150919.351947-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

3 files changed, 0 insertions, 2801 deletions

diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index c873cfd4ee86..08e3cf9efb38 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -108,26 +108,6 @@ config USB_IDMOUSE
 
 	  See also <https://www.fs.tum.de/~echtler/idmouse/>.
 
-config USB_FTDI_ELAN
-	tristate "Elan PCMCIA CardBus Adapter USB Client"
-	help
-	  ELAN's Uxxx series of adapters are USB to PCMCIA CardBus adapters.
-	  Currently only the U132 adapter is available.
-
-	  The U132 is specifically designed for CardBus PC cards that contain
-	  an OHCI host controller. Typical PC cards are the Orange Mobile 3G
-	  Option GlobeTrotter Fusion card. The U132 adapter will *NOT* work
-	  with PC cards that do not contain an OHCI controller. To use a U132
-	  adapter you will need this "ftdi-elan" module as well as the "u132-hcd"
-	  module which is a USB host controller driver that talks to the OHCI
-	  controller within CardBus card that are inserted in the U132 adapter.
-
-	  This driver has been tested with a CardBus OHCI USB adapter, and
-	  worked with a USB PEN Drive inserted into the first USB port of
-	  the PCCARD. A rather pointless thing to do, but useful for testing.
-
-	  It is safe to say M here.
-
 config USB_APPLEDISPLAY
 	tristate "Apple Cinema Display support"
 	select BACKLIGHT_CLASS_DEVICE
diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile
index 93581baec3a8..1992cc284d8a 100644
--- a/drivers/usb/misc/Makefile
+++ b/drivers/usb/misc/Makefile
@@ -10,7 +10,6 @@ obj-$(CONFIG_USB_CYTHERM)		+= cytherm.o
 obj-$(CONFIG_USB_EMI26)			+= emi26.o
 obj-$(CONFIG_USB_EMI62)			+= emi62.o
 obj-$(CONFIG_USB_EZUSB_FX2)		+= ezusb.o
-obj-$(CONFIG_USB_FTDI_ELAN)		+= ftdi-elan.o
 obj-$(CONFIG_APPLE_MFI_FASTCHARGE)	+= apple-mfi-fastcharge.o
 obj-$(CONFIG_USB_IDMOUSE)		+= idmouse.o
 obj-$(CONFIG_USB_IOWARRIOR)		+= iowarrior.o
diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c
deleted file mode 100644
index 8ce191e3a4c0..000000000000
--- a/drivers/usb/misc/ftdi-elan.c
+++ /dev/null
@@ -1,2780 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * USB FTDI client driver for Elan Digital Systems's Uxxx adapters
- *
- * Copyright(C) 2006 Elan Digital Systems Limited
- * http://www.elandigitalsystems.com
- *
- * Author and Maintainer - Tony Olech - Elan Digital Systems
- * tony.olech@elandigitalsystems.com
- *
- * This driver was written by Tony Olech(tony.olech@elandigitalsystems.com)
- * based on various USB client drivers in the 2.6.15 linux kernel
- * with constant reference to the 3rd Edition of Linux Device Drivers
- * published by O'Reilly
- *
- * The U132 adapter is a USB to CardBus adapter specifically designed
- * for PC cards that contain an OHCI host controller. Typical PC cards
- * are the Orange Mobile 3G Option GlobeTrotter Fusion card.
- *
- * The U132 adapter will *NOT *work with PC cards that do not contain
- * an OHCI controller. A simple way to test whether a PC card has an
- * OHCI controller as an interface is to insert the PC card directly
- * into a laptop(or desktop) with a CardBus slot and if "lspci" shows
- * a new USB controller and "lsusb -v" shows a new OHCI Host Controller
- * then there is a good chance that the U132 adapter will support the
- * PC card.(you also need the specific client driver for the PC card)
- *
- * Please inform the Author and Maintainer about any PC cards that
- * contain OHCI Host Controller and work when directly connected to
- * an embedded CardBus slot but do not work when they are connected
- * via an ELAN U132 adapter.
- *
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/ioctl.h>
-#include <linux/pci_ids.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/kref.h>
-#include <linux/mutex.h>
-#include <linux/uaccess.h>
-#include <linux/usb.h>
-#include <linux/workqueue.h>
-#include <linux/platform_device.h>
-MODULE_AUTHOR("Tony Olech");
-MODULE_DESCRIPTION("FTDI ELAN driver");
-MODULE_LICENSE("GPL");
-#define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444)
-static bool distrust_firmware = 1;
-module_param(distrust_firmware, bool, 0);
-MODULE_PARM_DESC(distrust_firmware,
-		 "true to distrust firmware power/overcurrent setup");
-extern struct platform_driver u132_platform_driver;
-/*
- * ftdi_module_lock exists to protect access to global variables
- *
- */
-static struct mutex ftdi_module_lock;
-static int ftdi_instances = 0;
-static struct list_head ftdi_static_list;
-/*
- * end of the global variables protected by ftdi_module_lock
- */
-#include "usb_u132.h"
-#include <asm/io.h>
-#include <linux/usb/hcd.h>
-
-/* FIXME ohci.h is ONLY for internal use by the OHCI driver.
- * If you're going to try stuff like this, you need to split
- * out shareable stuff (register declarations?) into its own
- * file, maybe name <linux/usb/ohci.h>
- */
-
-#include "../host/ohci.h"
-/* Define these values to match your devices*/
-#define USB_FTDI_ELAN_VENDOR_ID 0x0403
-#define USB_FTDI_ELAN_PRODUCT_ID 0xd6ea
-/* table of devices that work with this driver*/
-static const struct usb_device_id ftdi_elan_table[] = {
-	{USB_DEVICE(USB_FTDI_ELAN_VENDOR_ID, USB_FTDI_ELAN_PRODUCT_ID)},
-	{ /* Terminating entry */ }
-};
-
-MODULE_DEVICE_TABLE(usb, ftdi_elan_table);
-/* only the jtag(firmware upgrade device) interface requires
- * a device file and corresponding minor number, but the
- * interface is created unconditionally - I suppose it could
- * be configured or not according to a module parameter.
- * But since we(now) require one interface per device,
- * and since it unlikely that a normal installation would
- * require more than a couple of elan-ftdi devices, 8 seems
- * like a reasonable limit to have here, and if someone
- * really requires more than 8 devices, then they can frig the
- * code and recompile
- */
-#define USB_FTDI_ELAN_MINOR_BASE 192
-#define COMMAND_BITS 5
-#define COMMAND_SIZE (1<<COMMAND_BITS)
-#define COMMAND_MASK (COMMAND_SIZE-1)
-struct u132_command {
-	u8 header;
-	u16 length;
-	u8 address;
-	u8 width;
-	u32 value;
-	int follows;
-	void *buffer;
-};
-#define RESPOND_BITS 5
-#define RESPOND_SIZE (1<<RESPOND_BITS)
-#define RESPOND_MASK (RESPOND_SIZE-1)
-struct u132_respond {
-	u8 header;
-	u8 address;
-	u32 *value;
-	int *result;
-	struct completion wait_completion;
-};
-struct u132_target {
-	void *endp;
-	struct urb *urb;
-	int toggle_bits;
-	int error_count;
-	int condition_code;
-	int repeat_number;
-	int halted;
-	int skipped;
-	int actual;
-	int non_null;
-	int active;
-	int abandoning;
-	void (*callback)(void *endp, struct urb *urb, u8 *buf, int len,
-			 int toggle_bits, int error_count, int condition_code,
-			 int repeat_number, int halted, int skipped, int actual,
-			 int non_null);
-};
-/* Structure to hold all of our device specific stuff*/
-struct usb_ftdi {
-	struct list_head ftdi_list;
-	struct mutex u132_lock;
-	int command_next;
-	int command_head;
-	struct u132_command command[COMMAND_SIZE];
-	int respond_next;
-	int respond_head;
-	struct u132_respond respond[RESPOND_SIZE];
-	struct u132_target target[4];
-	char device_name[16];
-	unsigned synchronized:1;
-	unsigned enumerated:1;
-	unsigned registered:1;
-	unsigned initialized:1;
-	unsigned card_ejected:1;
-	int function;
-	int sequence_num;
-	int disconnected;
-	int gone_away;
-	int stuck_status;
-	int status_queue_delay;
-	struct semaphore sw_lock;
-	struct usb_device *udev;
-	struct usb_interface *interface;
-	struct usb_class_driver *class;
-	struct delayed_work status_work;
-	struct delayed_work command_work;
-	struct delayed_work respond_work;
-	struct u132_platform_data platform_data;
-	struct resource resources[0];
-	struct platform_device platform_dev;
-	unsigned char *bulk_in_buffer;
-	size_t bulk_in_size;
-	size_t bulk_in_last;
-	size_t bulk_in_left;
-	__u8 bulk_in_endpointAddr;
-	__u8 bulk_out_endpointAddr;
-	struct kref kref;
-	u32 controlreg;
-	u8 response[4 + 1024];
-	int expected;
-	int received;
-	int ed_found;
-};
-#define kref_to_usb_ftdi(d) container_of(d, struct usb_ftdi, kref)
-#define platform_device_to_usb_ftdi(d) container_of(d, struct usb_ftdi, \
-						    platform_dev)
-static struct usb_driver ftdi_elan_driver;
-static void ftdi_elan_delete(struct kref *kref)
-{
-	struct usb_ftdi *ftdi = kref_to_usb_ftdi(kref);
-	dev_warn(&ftdi->udev->dev, "FREEING ftdi=%p\n", ftdi);
-	usb_put_dev(ftdi->udev);
-	ftdi->disconnected += 1;
-	mutex_lock(&ftdi_module_lock);
-	list_del_init(&ftdi->ftdi_list);
-	ftdi_instances -= 1;
-	mutex_unlock(&ftdi_module_lock);
-	kfree(ftdi->bulk_in_buffer);
-	ftdi->bulk_in_buffer = NULL;
-	kfree(ftdi);
-}
-
-static void ftdi_elan_put_kref(struct usb_ftdi *ftdi)
-{
-	kref_put(&ftdi->kref, ftdi_elan_delete);
-}
-
-static void ftdi_elan_get_kref(struct usb_ftdi *ftdi)
-{
-	kref_get(&ftdi->kref);
-}
-
-static void ftdi_elan_init_kref(struct usb_ftdi *ftdi)
-{
-	kref_init(&ftdi->kref);
-}
-
-static void ftdi_status_requeue_work(struct usb_ftdi *ftdi, unsigned int delta)
-{
-	if (!schedule_delayed_work(&ftdi->status_work, delta))
-		kref_put(&ftdi->kref, ftdi_elan_delete);
-}
-
-static void ftdi_status_queue_work(struct usb_ftdi *ftdi, unsigned int delta)
-{
-	if (schedule_delayed_work(&ftdi->status_work, delta))
-		kref_get(&ftdi->kref);
-}
-
-static void ftdi_status_cancel_work(struct usb_ftdi *ftdi)
-{
-	if (cancel_delayed_work_sync(&ftdi->status_work))
-		kref_put(&ftdi->kref, ftdi_elan_delete);
-}
-
-static void ftdi_command_requeue_work(struct usb_ftdi *ftdi, unsigned int delta)
-{
-	if (!schedule_delayed_work(&ftdi->command_work, delta))
-		kref_put(&ftdi->kref, ftdi_elan_delete);
-}
-
-static void ftdi_command_queue_work(struct usb_ftdi *ftdi, unsigned int delta)
-{
-	if (schedule_delayed_work(&ftdi->command_work, delta))
-		kref_get(&ftdi->kref);
-}
-
-static void ftdi_command_cancel_work(struct usb_ftdi *ftdi)
-{
-	if (cancel_delayed_work_sync(&ftdi->command_work))
-		kref_put(&ftdi->kref, ftdi_elan_delete);
-}
-
-static void ftdi_response_requeue_work(struct usb_ftdi *ftdi,
-				       unsigned int delta)
-{
-	if (!schedule_delayed_work(&ftdi->respond_work, delta))
-		kref_put(&ftdi->kref, ftdi_elan_delete);
-}
-
-static void ftdi_respond_queue_work(struct usb_ftdi *ftdi, unsigned int delta)
-{
-	if (schedule_delayed_work(&ftdi->respond_work, delta))
-		kref_get(&ftdi->kref);
-}
-
-static void ftdi_response_cancel_work(struct usb_ftdi *ftdi)
-{
-	if (cancel_delayed_work_sync(&ftdi->respond_work))
-		kref_put(&ftdi->kref, ftdi_elan_delete);
-}
-
-void ftdi_elan_gone_away(struct platform_device *pdev)
-{
-	struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
-	ftdi->gone_away += 1;
-	ftdi_elan_put_kref(ftdi);
-}
-
-
-EXPORT_SYMBOL_GPL(ftdi_elan_gone_away);
-static void ftdi_release_platform_dev(struct device *dev)
-{
-	dev->parent = NULL;
-}
-
-static void ftdi_elan_do_callback(struct usb_ftdi *ftdi,
-				  struct u132_target *target, u8 *buffer, int length);
-static void ftdi_elan_kick_command_queue(struct usb_ftdi *ftdi);
-static void ftdi_elan_kick_respond_queue(struct usb_ftdi *ftdi);
-static int ftdi_elan_setupOHCI(struct usb_ftdi *ftdi);
-static int ftdi_elan_checkingPCI(struct usb_ftdi *ftdi);
-static int ftdi_elan_enumeratePCI(struct usb_ftdi *ftdi);
-static int ftdi_elan_synchronize(struct usb_ftdi *ftdi);
-static int ftdi_elan_stuck_waiting(struct usb_ftdi *ftdi);
-static int ftdi_elan_command_engine(struct usb_ftdi *ftdi);
-static int ftdi_elan_respond_engine(struct usb_ftdi *ftdi);
-static int ftdi_elan_hcd_init(struct usb_ftdi *ftdi)
-{
-	if (ftdi->platform_dev.dev.parent)
-		return -EBUSY;
-
-	ftdi_elan_get_kref(ftdi);
-	ftdi->platform_data.potpg = 100;
-	ftdi->platform_data.reset = NULL;
-	ftdi->platform_dev.id = ftdi->sequence_num;
-	ftdi->platform_dev.resource = ftdi->resources;
-	ftdi->platform_dev.num_resources = ARRAY_SIZE(ftdi->resources);
-	ftdi->platform_dev.dev.platform_data = &ftdi->platform_data;
-	ftdi->platform_dev.dev.parent = NULL;
-	ftdi->platform_dev.dev.release = ftdi_release_platform_dev;
-	ftdi->platform_dev.dev.dma_mask = NULL;
-	snprintf(ftdi->device_name, sizeof(ftdi->device_name), "u132_hcd");
-	ftdi->platform_dev.name = ftdi->device_name;
-	dev_info(&ftdi->udev->dev, "requesting module '%s'\n", "u132_hcd");
-	request_module("u132_hcd");
-	dev_info(&ftdi->udev->dev, "registering '%s'\n",
-		 ftdi->platform_dev.name);
-
-	return platform_device_register(&ftdi->platform_dev);
-}
-
-static void ftdi_elan_abandon_completions(struct usb_ftdi *ftdi)
-{
-	mutex_lock(&ftdi->u132_lock);
-	while (ftdi->respond_next > ftdi->respond_head) {
-		struct u132_respond *respond = &ftdi->respond[RESPOND_MASK &
-							      ftdi->respond_head++];
-		*respond->result = -ESHUTDOWN;
-		*respond->value = 0;
-		complete(&respond->wait_completion);
-	}
-	mutex_unlock(&ftdi->u132_lock);
-}
-
-static void ftdi_elan_abandon_targets(struct usb_ftdi *ftdi)
-{
-	int ed_number = 4;
-	mutex_lock(&ftdi->u132_lock);
-	while (ed_number-- > 0) {
-		struct u132_target *target = &ftdi->target[ed_number];
-		if (target->active == 1) {
-			target->condition_code = TD_DEVNOTRESP;
-			mutex_unlock(&ftdi->u132_lock);
-			ftdi_elan_do_callback(ftdi, target, NULL, 0);
-			mutex_lock(&ftdi->u132_lock);
-		}
-	}
-	ftdi->received = 0;
-	ftdi->expected = 4;
-	ftdi->ed_found = 0;
-	mutex_unlock(&ftdi->u132_lock);
-}
-
-static void ftdi_elan_flush_targets(struct usb_ftdi *ftdi)
-{
-	int ed_number = 4;
-	mutex_lock(&ftdi->u132_lock);
-	while (ed_number-- > 0) {
-		struct u132_target *target = &ftdi->target[ed_number];
-		target->abandoning = 1;
-	wait_1:if (target->active == 1) {
-			int command_size = ftdi->command_next -
-				ftdi->command_head;
-			if (command_size < COMMAND_SIZE) {
-				struct u132_command *command = &ftdi->command[
-					COMMAND_MASK & ftdi->command_next];
-				command->header = 0x80 | (ed_number << 5) | 0x4;
-				command->length = 0x00;
-				command->address = 0x00;
-				command->width = 0x00;
-				command->follows = 0;
-				command->value = 0;
-				command->buffer = &command->value;
-				ftdi->command_next += 1;
-				ftdi_elan_kick_command_queue(ftdi);
-			} else {
-				mutex_unlock(&ftdi->u132_lock);
-				msleep(100);
-				mutex_lock(&ftdi->u132_lock);
-				goto wait_1;
-			}
-		}
-	wait_2:if (target->active == 1) {
-			int command_size = ftdi->command_next -
-				ftdi->command_head;
-			if (command_size < COMMAND_SIZE) {
-				struct u132_command *command = &ftdi->command[
-					COMMAND_MASK & ftdi->command_next];
-				command->header = 0x90 | (ed_number << 5);
-				command->length = 0x00;
-				command->address = 0x00;
-				command->width = 0x00;
-				command->follows = 0;
-				command->value = 0;
-				command->buffer = &command->value;
-				ftdi->command_next += 1;
-				ftdi_elan_kick_command_queue(ftdi);
-			} else {
-				mutex_unlock(&ftdi->u132_lock);
-				msleep(100);
-				mutex_lock(&ftdi->u132_lock);
-				goto wait_2;
-			}
-		}
-	}
-	ftdi->received = 0;
-	ftdi->expected = 4;
-	ftdi->ed_found = 0;
-	mutex_unlock(&ftdi->u132_lock);
-}
-
-static void ftdi_elan_cancel_targets(struct usb_ftdi *ftdi)
-{
-	int ed_number = 4;
-	mutex_lock(&ftdi->u132_lock);
-	while (ed_number-- > 0) {
-		struct u132_target *target = &ftdi->target[ed_number];
-		target->abandoning = 1;
-	wait:if (target->active == 1) {
-			int command_size = ftdi->command_next -
-				ftdi->command_head;
-			if (command_size < COMMAND_SIZE) {
-				struct u132_command *command = &ftdi->command[
-					COMMAND_MASK & ftdi->command_next];
-				command->header = 0x80 | (ed_number << 5) | 0x4;
-				command->length = 0x00;
-				command->address = 0x00;
-				command->width = 0x00;
-				command->follows = 0;
-				command->value = 0;
-				command->buffer = &command->value;
-				ftdi->command_next += 1;
-				ftdi_elan_kick_command_queue(ftdi);
-			} else {
-				mutex_unlock(&ftdi->u132_lock);
-				msleep(100);
-				mutex_lock(&ftdi->u132_lock);
-				goto wait;
-			}
-		}
-	}
-	ftdi->received = 0;
-	ftdi->expected = 4;
-	ftdi->ed_found = 0;
-	mutex_unlock(&ftdi->u132_lock);
-}
-
-static void ftdi_elan_kick_command_queue(struct usb_ftdi *ftdi)
-{
-	ftdi_command_queue_work(ftdi, 0);
-}
-
-static void ftdi_elan_command_work(struct work_struct *work)
-{
-	struct usb_ftdi *ftdi =
-		container_of(work, struct usb_ftdi, command_work.work);
-
-	if (ftdi->disconnected > 0) {
-		ftdi_elan_put_kref(ftdi);
-		return;
-	} else {
-		int retval = ftdi_elan_command_engine(ftdi);
-		if (retval == -ESHUTDOWN) {
-			ftdi->disconnected += 1;
-		} else if (retval == -ENODEV) {
-			ftdi->disconnected += 1;
-		} else if (retval)
-			dev_err(&ftdi->udev->dev, "command error %d\n", retval);
-		ftdi_command_requeue_work(ftdi, msecs_to_jiffies(10));
-		return;
-	}
-}
-
-static void ftdi_elan_kick_respond_queue(struct usb_ftdi *ftdi)
-{
-	ftdi_respond_queue_work(ftdi, 0);
-}
-
-static void ftdi_elan_respond_work(struct work_struct *work)
-{
-	struct usb_ftdi *ftdi =
-		container_of(work, struct usb_ftdi, respond_work.work);
-	if (ftdi->disconnected > 0) {
-		ftdi_elan_put_kref(ftdi);
-		return;
-	} else {
-		int retval = ftdi_elan_respond_engine(ftdi);
-		if (retval == 0) {
-		} else if (retval == -ESHUTDOWN) {
-			ftdi->disconnected += 1;
-		} else if (retval == -ENODEV) {
-			ftdi->disconnected += 1;
-		} else if (retval == -EILSEQ) {
-			ftdi->disconnected += 1;
-		} else {
-			ftdi->disconnected += 1;
-			dev_err(&ftdi->udev->dev, "respond error %d\n", retval);
-		}
-		if (ftdi->disconnected > 0) {
-			ftdi_elan_abandon_completions(ftdi);
-			ftdi_elan_abandon_targets(ftdi);
-		}
-		ftdi_response_requeue_work(ftdi, msecs_to_jiffies(10));
-		return;
-	}
-}
-
-
-/*
- * the sw_lock is initially held and will be freed
- * after the FTDI has been synchronized
- *
- */
-static void ftdi_elan_status_work(struct work_struct *work)
-{
-	struct usb_ftdi *ftdi =
-		container_of(work, struct usb_ftdi, status_work.work);
-	int work_delay_in_msec = 0;
-	if (ftdi->disconnected > 0) {
-		ftdi_elan_put_kref(ftdi);
-		return;
-	} else if (ftdi->synchronized == 0) {
-		down(&ftdi->sw_lock);
-		if (ftdi_elan_synchronize(ftdi) == 0) {
-			ftdi->synchronized = 1;
-			ftdi_command_queue_work(ftdi, 1);
-			ftdi_respond_queue_work(ftdi, 1);
-			up(&ftdi->sw_lock);
-			work_delay_in_msec = 100;
-		} else {
-			dev_err(&ftdi->udev->dev, "synchronize failed\n");
-			up(&ftdi->sw_lock);
-			work_delay_in_msec = 10 *1000;
-		}
-	} else if (ftdi->stuck_status > 0) {
-		if (ftdi_elan_stuck_waiting(ftdi) == 0) {
-			ftdi->stuck_status = 0;
-			ftdi->synchronized = 0;
-		} else if ((ftdi->stuck_status++ % 60) == 1) {
-			dev_err(&ftdi->udev->dev, "WRONG type of card inserted - please remove\n");
-		} else
-			dev_err(&ftdi->udev->dev, "WRONG type of card inserted - checked %d times\n",
-				ftdi->stuck_status);
-		work_delay_in_msec = 100;
-	} else if (ftdi->enumerated == 0) {
-		if (ftdi_elan_enumeratePCI(ftdi) == 0) {
-			ftdi->enumerated = 1;
-			work_delay_in_msec = 250;
-		} else
-			work_delay_in_msec = 1000;
-	} else if (ftdi->initialized == 0) {
-		if (ftdi_elan_setupOHCI(ftdi) == 0) {
-			ftdi->initialized = 1;
-			work_delay_in_msec = 500;
-		} else {
-			dev_err(&ftdi->udev->dev, "initialized failed - trying again in 10 seconds\n");
-			work_delay_in_msec = 1 *1000;
-		}
-	} else if (ftdi->registered == 0) {
-		work_delay_in_msec = 10;
-		if (ftdi_elan_hcd_init(ftdi) == 0) {
-			ftdi->registered = 1;
-		} else
-			dev_err(&ftdi->udev->dev, "register failed\n");
-		work_delay_in_msec = 250;
-	} else {
-		if (ftdi_elan_checkingPCI(ftdi) == 0) {
-			work_delay_in_msec = 250;
-		} else if (ftdi->controlreg & 0x00400000) {
-			if (ftdi->gone_away > 0) {
-				dev_err(&ftdi->udev->dev, "PCI device eject confirmed platform_dev.dev.parent=%p platform_dev.dev=%p\n",
-					ftdi->platform_dev.dev.parent,
-					&ftdi->platform_dev.dev);
-				platform_device_unregister(&ftdi->platform_dev);
-				ftdi->platform_dev.dev.parent = NULL;
-				ftdi->registered = 0;
-				ftdi->enumerated = 0;
-				ftdi->card_ejected = 0;
-				ftdi->initialized = 0;
-				ftdi->gone_away = 0;
-			} else
-				ftdi_elan_flush_targets(ftdi);
-			work_delay_in_msec = 250;
-		} else {
-			dev_err(&ftdi->udev->dev, "PCI device has disappeared\n");
-			ftdi_elan_cancel_targets(ftdi);
-			work_delay_in_msec = 500;
-			ftdi->enumerated = 0;
-			ftdi->initialized = 0;
-		}
-	}
-	if (ftdi->disconnected > 0) {
-		ftdi_elan_put_kref(ftdi);
-		return;
-	} else {
-		ftdi_status_requeue_work(ftdi,
-					 msecs_to_jiffies(work_delay_in_msec));
-		return;
-	}
-}
-
-
-/*
- * file_operations for the jtag interface
- *
- * the usage count for the device is incremented on open()
- * and decremented on release()
- */
-static int ftdi_elan_open(struct inode *inode, struct file *file)
-{
-	int subminor;
-	struct usb_interface *interface;
-
-	subminor = iminor(inode);
-	interface = usb_find_interface(&ftdi_elan_driver, subminor);
-
-	if (!interface) {
-		pr_err("can't find device for minor %d\n", subminor);
-		return -ENODEV;
-	} else {
-		struct usb_ftdi *ftdi = usb_get_intfdata(interface);
-		if (!ftdi) {
-			return -ENODEV;
-		} else {
-			if (down_interruptible(&ftdi->sw_lock)) {
-				return -EINTR;
-			} else {
-				ftdi_elan_get_kref(ftdi);
-				file->private_data = ftdi;
-				return 0;
-			}
-		}
-	}
-}
-
-static int ftdi_elan_release(struct inode *inode, struct file *file)
-{
-	struct usb_ftdi *ftdi = file->private_data;
-	if (ftdi == NULL)
-		return -ENODEV;
-	up(&ftdi->sw_lock);        /* decrement the count on our device */
-	ftdi_elan_put_kref(ftdi);
-	return 0;
-}
-
-
-/*
- *
- * blocking bulk reads are used to get data from the device
- *
- */
-static ssize_t ftdi_elan_read(struct file *file, char __user *buffer,
-			      size_t count, loff_t *ppos)
-{
-	char data[30 *3 + 4];
-	char *d = data;
-	int m = (sizeof(data) - 1) / 3 - 1;
-	int bytes_read = 0;
-	int retry_on_empty = 10;
-	int retry_on_timeout = 5;
-	struct usb_ftdi *ftdi = file->private_data;
-	if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	}
-	data[0] = 0;
-have:if (ftdi->bulk_in_left > 0) {
-		if (count-- > 0) {
-			char *p = ++ftdi->bulk_in_last + ftdi->bulk_in_buffer;
-			ftdi->bulk_in_left -= 1;
-			if (bytes_read < m) {
-				d += sprintf(d, " %02X", 0x000000FF & *p);
-			} else if (bytes_read > m) {
-			} else
-				d += sprintf(d, " ..");
-			if (copy_to_user(buffer++, p, 1)) {
-				return -EFAULT;
-			} else {
-				bytes_read += 1;
-				goto have;
-			}
-		} else
-			return bytes_read;
-	}
-more:if (count > 0) {
-		int packet_bytes = 0;
-		int retval = usb_bulk_msg(ftdi->udev,
-					  usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr),
-					  ftdi->bulk_in_buffer, ftdi->bulk_in_size,
-					  &packet_bytes, 50);
-		if (packet_bytes > 2) {
-			ftdi->bulk_in_left = packet_bytes - 2;
-			ftdi->bulk_in_last = 1;
-			goto have;
-		} else if (retval == -ETIMEDOUT) {
-			if (retry_on_timeout-- > 0) {
-				goto more;
-			} else if (bytes_read > 0) {
-				return bytes_read;
-			} else
-				return retval;
-		} else if (retval == 0) {
-			if (retry_on_empty-- > 0) {
-				goto more;
-			} else
-				return bytes_read;
-		} else
-			return retval;
-	} else
-		return bytes_read;
-}
-
-static void ftdi_elan_write_bulk_callback(struct urb *urb)
-{
-	struct usb_ftdi *ftdi = urb->context;
-	int status = urb->status;
-
-	if (status && !(status == -ENOENT || status == -ECONNRESET ||
-			status == -ESHUTDOWN)) {
-		dev_err(&ftdi->udev->dev,
-			"urb=%p write bulk status received: %d\n", urb, status);
-	}
-	usb_free_coherent(urb->dev, urb->transfer_buffer_length,
-			  urb->transfer_buffer, urb->transfer_dma);
-}
-
-static int fill_buffer_with_all_queued_commands(struct usb_ftdi *ftdi,
-						char *buf, int command_size, int total_size)
-{
-	int ed_commands = 0;
-	int b = 0;
-	int I = command_size;
-	int i = ftdi->command_head;
-	while (I-- > 0) {
-		struct u132_command *command = &ftdi->command[COMMAND_MASK &
-							      i++];
-		int F = command->follows;
-		u8 *f = command->buffer;
-		if (command->header & 0x80) {
-			ed_commands |= 1 << (0x3 & (command->header >> 5));
-		}
-		buf[b++] = command->header;
-		buf[b++] = (command->length >> 0) & 0x00FF;
-		buf[b++] = (command->length >> 8) & 0x00FF;
-		buf[b++] = command->address;
-		buf[b++] = command->width;
-		while (F-- > 0) {
-			buf[b++] = *f++;
-		}
-	}
-	return ed_commands;
-}
-
-static int ftdi_elan_total_command_size(struct usb_ftdi *ftdi, int command_size)
-{
-	int total_size = 0;
-	int I = command_size;
-	int i = ftdi->command_head;
-	while (I-- > 0) {
-		struct u132_command *command = &ftdi->command[COMMAND_MASK &
-							      i++];
-		total_size += 5 + command->follows;
-	}
-	return total_size;
-}
-
-static int ftdi_elan_command_engine(struct usb_ftdi *ftdi)
-{
-	int retval;
-	char *buf;
-	int ed_commands;
-	int total_size;
-	struct urb *urb;
-	int command_size = ftdi->command_next - ftdi->command_head;
-	if (command_size == 0)
-		return 0;
-	total_size = ftdi_elan_total_command_size(ftdi, command_size);
-	urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!urb)
-		return -ENOMEM;
-	buf = usb_alloc_coherent(ftdi->udev, total_size, GFP_KERNEL,
-				 &urb->transfer_dma);
-	if (!buf) {
-		dev_err(&ftdi->udev->dev, "could not get a buffer to write %d commands totaling %d bytes to the Uxxx\n",
-			command_size, total_size);
-		usb_free_urb(urb);
-		return -ENOMEM;
-	}
-	ed_commands = fill_buffer_with_all_queued_commands(ftdi, buf,
-							   command_size, total_size);
-	usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev,
-							   ftdi->bulk_out_endpointAddr), buf, total_size,
-			  ftdi_elan_write_bulk_callback, ftdi);
-	urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
-	if (ed_commands) {
-		char diag[40 *3 + 4];
-		char *d = diag;
-		int m = total_size;
-		u8 *c = buf;
-		int s = (sizeof(diag) - 1) / 3;
-		diag[0] = 0;
-		while (s-- > 0 && m-- > 0) {
-			if (s > 0 || m == 0) {
-				d += sprintf(d, " %02X", *c++);
-			} else
-				d += sprintf(d, " ..");
-		}
-	}
-	retval = usb_submit_urb(urb, GFP_KERNEL);
-	if (retval) {
-		dev_err(&ftdi->udev->dev, "failed %d to submit urb %p to write %d commands totaling %d bytes to the Uxxx\n",
-			retval, urb, command_size, total_size);
-		usb_free_coherent(ftdi->udev, total_size, buf, urb->transfer_dma);
-		usb_free_urb(urb);
-		return retval;
-	}
-	usb_free_urb(urb);        /* release our reference to this urb,
-				     the USB core will eventually free it entirely */
-	ftdi->command_head += command_size;
-	ftdi_elan_kick_respond_queue(ftdi);
-	return 0;
-}
-
-static void ftdi_elan_do_callback(struct usb_ftdi *ftdi,
-				  struct u132_target *target, u8 *buffer, int length)
-{
-	struct urb *urb = target->urb;
-	int halted = target->halted;
-	int skipped = target->skipped;
-	int actual = target->actual;
-	int non_null = target->non_null;
-	int toggle_bits = target->toggle_bits;
-	int error_count = target->error_count;
-	int condition_code = target->condition_code;
-	int repeat_number = target->repeat_number;
-	void (*callback) (void *, struct urb *, u8 *, int, int, int, int, int,
-			  int, int, int, int) = target->callback;
-	target->active -= 1;
-	target->callback = NULL;
-	(*callback) (target->endp, urb, buffer, length, toggle_bits,
-		     error_count, condition_code, repeat_number, halted, skipped,
-		     actual, non_null);
-}
-
-static char *have_ed_set_response(struct usb_ftdi *ftdi,
-				  struct u132_target *target, u16 ed_length, int ed_number, int ed_type,
-				  char *b)
-{
-	int payload = (ed_length >> 0) & 0x07FF;
-	mutex_lock(&ftdi->u132_lock);
-	target->actual = 0;
-	target->non_null = (ed_length >> 15) & 0x0001;
-	target->repeat_number = (ed_length >> 11) & 0x000F;
-	if (ed_type == 0x02 || ed_type == 0x03) {
-		if (payload == 0 || target->abandoning > 0) {
-			target->abandoning = 0;
-			mutex_unlock(&ftdi->u132_lock);
-			ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response,
-					      payload);
-			ftdi->received = 0;
-			ftdi->expected = 4;
-			ftdi->ed_found = 0;
-			return ftdi->response;
-		} else {
-			ftdi->expected = 4 + payload;
-			ftdi->ed_found = 1;
-			mutex_unlock(&ftdi->u132_lock);
-			return b;
-		}
-	} else {
-		target->abandoning = 0;
-		mutex_unlock(&ftdi->u132_lock);
-		ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response,
-				      payload);
-		ftdi->received = 0;
-		ftdi->expected = 4;
-		ftdi->ed_found = 0;
-		return ftdi->response;
-	}
-}
-
-static char *have_ed_get_response(struct usb_ftdi *ftdi,
-				  struct u132_target *target, u16 ed_length, int ed_number, int ed_type,
-				  char *b)
-{
-	mutex_lock(&ftdi->u132_lock);
-	target->condition_code = TD_DEVNOTRESP;
-	target->actual = (ed_length >> 0) & 0x01FF;
-	target->non_null = (ed_length >> 15) & 0x0001;
-	target->repeat_number = (ed_length >> 11) & 0x000F;
-	mutex_unlock(&ftdi->u132_lock);
-	if (target->active)
-		ftdi_elan_do_callback(ftdi, target, NULL, 0);
-	target->abandoning = 0;
-	ftdi->received = 0;
-	ftdi->expected = 4;
-	ftdi->ed_found = 0;
-	return ftdi->response;
-}
-
-
-/*
- * The engine tries to empty the FTDI fifo
- *
- * all responses found in the fifo data are dispatched thus
- * the response buffer can only ever hold a maximum sized
- * response from the Uxxx.
- *
- */
-static int ftdi_elan_respond_engine(struct usb_ftdi *ftdi)
-{
-	u8 *b = ftdi->response + ftdi->received;
-	int bytes_read = 0;
-	int retry_on_empty = 1;
-	int retry_on_timeout = 3;
-read:{
-		int packet_bytes = 0;
-		int retval = usb_bulk_msg(ftdi->udev,
-					  usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr),
-					  ftdi->bulk_in_buffer, ftdi->bulk_in_size,
-					  &packet_bytes, 500);
-		char diag[30 *3 + 4];
-		char *d = diag;
-		int m = packet_bytes;
-		u8 *c = ftdi->bulk_in_buffer;
-		int s = (sizeof(diag) - 1) / 3;
-		diag[0] = 0;
-		while (s-- > 0 && m-- > 0) {
-			if (s > 0 || m == 0) {
-				d += sprintf(d, " %02X", *c++);
-			} else
-				d += sprintf(d, " ..");
-		}
-		if (packet_bytes > 2) {
-			ftdi->bulk_in_left = packet_bytes - 2;
-			ftdi->bulk_in_last = 1;
-			goto have;
-		} else if (retval == -ETIMEDOUT) {
-			if (retry_on_timeout-- > 0) {
-				dev_err(&ftdi->udev->dev, "TIMED OUT with packet_bytes = %d with total %d bytes%s\n",
-					packet_bytes, bytes_read, diag);
-				goto more;
-			} else if (bytes_read > 0) {
-				dev_err(&ftdi->udev->dev, "ONLY %d bytes%s\n",
-					bytes_read, diag);
-				return -ENOMEM;
-			} else {
-				dev_err(&ftdi->udev->dev, "TIMED OUT with packet_bytes = %d with total %d bytes%s\n",
-					packet_bytes, bytes_read, diag);
-				return -ENOMEM;
-			}
-		} else if (retval == -EILSEQ) {
-			dev_err(&ftdi->udev->dev, "error = %d with packet_bytes = %d with total %d bytes%s\n",
-				retval, packet_bytes, bytes_read, diag);
-			return retval;
-		} else if (retval) {
-			dev_err(&ftdi->udev->dev, "error = %d with packet_bytes = %d with total %d bytes%s\n",
-				retval, packet_bytes, bytes_read, diag);
-			return retval;
-		} else {
-			if (retry_on_empty-- > 0) {
-				goto more;
-			} else
-				return 0;
-		}
-	}
-more:{
-		goto read;
-	}
-have:if (ftdi->bulk_in_left > 0) {
-		u8 c = ftdi->bulk_in_buffer[++ftdi->bulk_in_last];
-		bytes_read += 1;
-		ftdi->bulk_in_left -= 1;
-		if (ftdi->received == 0 && c == 0xFF) {
-			goto have;
-		} else
-			*b++ = c;
-		if (++ftdi->received < ftdi->expected) {
-			goto have;
-		} else if (ftdi->ed_found) {
-			int ed_number = (ftdi->response[0] >> 5) & 0x03;
-			u16 ed_length = (ftdi->response[2] << 8) |
-				ftdi->response[1];
-			struct u132_target *target = &ftdi->target[ed_number];
-			int payload = (ed_length >> 0) & 0x07FF;
-			char diag[30 *3 + 4];
-			char *d = diag;
-			int m = payload;
-			u8 *c = 4 + ftdi->response;
-			int s = (sizeof(diag) - 1) / 3;
-			diag[0] = 0;
-			while (s-- > 0 && m-- > 0) {
-				if (s > 0 || m == 0) {
-					d += sprintf(d, " %02X", *c++);
-				} else
-					d += sprintf(d, " ..");
-			}
-			ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response,
-					      payload);
-			ftdi->received = 0;
-			ftdi->expected = 4;
-			ftdi->ed_found = 0;
-			b = ftdi->response;
-			goto have;
-		} else if (ftdi->expected == 8) {
-			u8 buscmd;
-			int respond_head = ftdi->respond_head++;
-			struct u132_respond *respond = &ftdi->respond[
-				RESPOND_MASK & respond_head];
-			u32 data = ftdi->response[7];
-			data <<= 8;
-			data |= ftdi->response[6];
-			data <<= 8;
-			data |= ftdi->response[5];
-			data <<= 8;
-			data |= ftdi->response[4];
-			*respond->value = data;
-			*respond->result = 0;
-			complete(&respond->wait_completion);
-			ftdi->received = 0;
-			ftdi->expected = 4;
-			ftdi->ed_found = 0;
-			b = ftdi->response;
-			buscmd = (ftdi->response[0] >> 0) & 0x0F;
-			if (buscmd == 0x00) {
-			} else if (buscmd == 0x02) {
-			} else if (buscmd == 0x06) {
-			} else if (buscmd == 0x0A) {
-			} else
-				dev_err(&ftdi->udev->dev, "Uxxx unknown(%0X) value = %08X\n",
-					buscmd, data);
-			goto have;
-		} else {
-			if ((ftdi->response[0] & 0x80) == 0x00) {
-				ftdi->expected = 8;
-				goto have;
-			} else {
-				int ed_number = (ftdi->response[0] >> 5) & 0x03;
-				int ed_type = (ftdi->response[0] >> 0) & 0x03;
-				u16 ed_length = (ftdi->response[2] << 8) |
-					ftdi->response[1];
-				struct u132_target *target = &ftdi->target[
-					ed_number];
-				target->halted = (ftdi->response[0] >> 3) &
-					0x01;
-				target->skipped = (ftdi->response[0] >> 2) &
-					0x01;
-				target->toggle_bits = (ftdi->response[3] >> 6)
-					& 0x03;
-				target->error_count = (ftdi->response[3] >> 4)
-					& 0x03;
-				target->condition_code = (ftdi->response[
-								  3] >> 0) & 0x0F;
-				if ((ftdi->response[0] & 0x10) == 0x00) {
-					b = have_ed_set_response(ftdi, target,
-								 ed_length, ed_number, ed_type,
-								 b);
-					goto have;
-				} else {
-					b = have_ed_get_response(ftdi, target,
-								 ed_length, ed_number, ed_type,
-								 b);
-					goto have;
-				}
-			}
-		}
-	} else
-		goto more;
-}
-
-
-/*
- * create a urb, and a buffer for it, and copy the data to the urb
- *
- */
-static ssize_t ftdi_elan_write(struct file *file,
-			       const char __user *user_buffer, size_t count,
-			       loff_t *ppos)
-{
-	int retval = 0;
-	struct urb *urb;
-	char *buf;
-	struct usb_ftdi *ftdi = file->private_data;
-
-	if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	}
-	if (count == 0) {
-		goto exit;
-	}
-	urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!urb) {
-		retval = -ENOMEM;
-		goto error_1;
-	}
-	buf = usb_alloc_coherent(ftdi->udev, count, GFP_KERNEL,
-				 &urb->transfer_dma);
-	if (!buf) {
-		retval = -ENOMEM;
-		goto error_2;
-	}
-	if (copy_from_user(buf, user_buffer, count)) {
-		retval = -EFAULT;
-		goto error_3;
-	}
-	usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev,
-							   ftdi->bulk_out_endpointAddr), buf, count,
-			  ftdi_elan_write_bulk_callback, ftdi);
-	urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
-	retval = usb_submit_urb(urb, GFP_KERNEL);
-	if (retval) {
-		dev_err(&ftdi->udev->dev,
-			"failed submitting write urb, error %d\n", retval);
-		goto error_3;
-	}
-	usb_free_urb(urb);
-
-exit:
-	return count;
-error_3:
-	usb_free_coherent(ftdi->udev, count, buf, urb->transfer_dma);
-error_2:
-	usb_free_urb(urb);
-error_1:
-	return retval;
-}
-
-static const struct file_operations ftdi_elan_fops = {
-	.owner = THIS_MODULE,
-	.llseek = no_llseek,
-	.read = ftdi_elan_read,
-	.write = ftdi_elan_write,
-	.open = ftdi_elan_open,
-	.release = ftdi_elan_release,
-};
-
-/*
- * usb class driver info in order to get a minor number from the usb core,
- * and to have the device registered with the driver core
- */
-static struct usb_class_driver ftdi_elan_jtag_class = {
-	.name = "ftdi-%d-jtag",
-	.fops = &ftdi_elan_fops,
-	.minor_base = USB_FTDI_ELAN_MINOR_BASE,
-};
-
-/*
- * the following definitions are for the
- * ELAN FPGA state machgine processor that
- * lies on the other side of the FTDI chip
- */
-#define cPCIu132rd 0x0
-#define cPCIu132wr 0x1
-#define cPCIiord 0x2
-#define cPCIiowr 0x3
-#define cPCImemrd 0x6
-#define cPCImemwr 0x7
-#define cPCIcfgrd 0xA
-#define cPCIcfgwr 0xB
-#define cPCInull 0xF
-#define cU132cmd_status 0x0
-#define cU132flash 0x1
-#define cPIDsetup 0x0
-#define cPIDout 0x1
-#define cPIDin 0x2
-#define cPIDinonce 0x3
-#define cCCnoerror 0x0
-#define cCCcrc 0x1
-#define cCCbitstuff 0x2
-#define cCCtoggle 0x3
-#define cCCstall 0x4
-#define cCCnoresp 0x5
-#define cCCbadpid1 0x6
-#define cCCbadpid2 0x7
-#define cCCdataoverrun 0x8
-#define cCCdataunderrun 0x9
-#define cCCbuffoverrun 0xC
-#define cCCbuffunderrun 0xD
-#define cCCnotaccessed 0xF
-static int ftdi_elan_write_reg(struct usb_ftdi *ftdi, u32 data)
-{
-wait:if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	} else {
-		int command_size;
-		mutex_lock(&ftdi->u132_lock);
-		command_size = ftdi->command_next - ftdi->command_head;
-		if (command_size < COMMAND_SIZE) {
-			struct u132_command *command = &ftdi->command[
-				COMMAND_MASK & ftdi->command_next];
-			command->header = 0x00 | cPCIu132wr;
-			command->length = 0x04;
-			command->address = 0x00;
-			command->width = 0x00;
-			command->follows = 4;
-			command->value = data;
-			command->buffer = &command->value;
-			ftdi->command_next += 1;
-			ftdi_elan_kick_command_queue(ftdi);
-			mutex_unlock(&ftdi->u132_lock);
-			return 0;
-		} else {
-			mutex_unlock(&ftdi->u132_lock);
-			msleep(100);
-			goto wait;
-		}
-	}
-}
-
-static int ftdi_elan_write_config(struct usb_ftdi *ftdi, int config_offset,
-				  u8 width, u32 data)
-{
-	u8 addressofs = config_offset / 4;
-wait:if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	} else {
-		int command_size;
-		mutex_lock(&ftdi->u132_lock);
-		command_size = ftdi->command_next - ftdi->command_head;
-		if (command_size < COMMAND_SIZE) {
-			struct u132_command *command = &ftdi->command[
-				COMMAND_MASK & ftdi->command_next];
-			command->header = 0x00 | (cPCIcfgwr & 0x0F);
-			command->length = 0x04;
-			command->address = addressofs;
-			command->width = 0x00 | (width & 0x0F);
-			command->follows = 4;
-			command->value = data;
-			command->buffer = &command->value;
-			ftdi->command_next += 1;
-			ftdi_elan_kick_command_queue(ftdi);
-			mutex_unlock(&ftdi->u132_lock);
-			return 0;
-		} else {
-			mutex_unlock(&ftdi->u132_lock);
-			msleep(100);
-			goto wait;
-		}
-	}
-}
-
-static int ftdi_elan_write_pcimem(struct usb_ftdi *ftdi, int mem_offset,
-				  u8 width, u32 data)
-{
-	u8 addressofs = mem_offset / 4;
-wait:if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	} else {
-		int command_size;
-		mutex_lock(&ftdi->u132_lock);
-		command_size = ftdi->command_next - ftdi->command_head;
-		if (command_size < COMMAND_SIZE) {
-			struct u132_command *command = &ftdi->command[
-				COMMAND_MASK & ftdi->command_next];
-			command->header = 0x00 | (cPCImemwr & 0x0F);
-			command->length = 0x04;
-			command->address = addressofs;
-			command->width = 0x00 | (width & 0x0F);
-			command->follows = 4;
-			command->value = data;
-			command->buffer = &command->value;
-			ftdi->command_next += 1;
-			ftdi_elan_kick_command_queue(ftdi);
-			mutex_unlock(&ftdi->u132_lock);
-			return 0;
-		} else {
-			mutex_unlock(&ftdi->u132_lock);
-			msleep(100);
-			goto wait;
-		}
-	}
-}
-
-int usb_ftdi_elan_write_pcimem(struct platform_device *pdev, int mem_offset,
-			       u8 width, u32 data)
-{
-	struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
-	return ftdi_elan_write_pcimem(ftdi, mem_offset, width, data);
-}
-
-
-EXPORT_SYMBOL_GPL(usb_ftdi_elan_write_pcimem);
-static int ftdi_elan_read_reg(struct usb_ftdi *ftdi, u32 *data)
-{
-wait:if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	} else {
-		int command_size;
-		int respond_size;
-		mutex_lock(&ftdi->u132_lock);
-		command_size = ftdi->command_next - ftdi->command_head;
-		respond_size = ftdi->respond_next - ftdi->respond_head;
-		if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE)
-		{
-			struct u132_command *command = &ftdi->command[
-				COMMAND_MASK & ftdi->command_next];
-			struct u132_respond *respond = &ftdi->respond[
-				RESPOND_MASK & ftdi->respond_next];
-			int result = -ENODEV;
-			respond->result = &result;
-			respond->header = command->header = 0x00 | cPCIu132rd;
-			command->length = 0x04;
-			respond->address = command->address = cU132cmd_status;
-			command->width = 0x00;
-			command->follows = 0;
-			command->value = 0;
-			command->buffer = NULL;
-			respond->value = data;
-			init_completion(&respond->wait_completion);
-			ftdi->command_next += 1;
-			ftdi->respond_next += 1;
-			ftdi_elan_kick_command_queue(ftdi);
-			mutex_unlock(&ftdi->u132_lock);
-			wait_for_completion(&respond->wait_completion);
-			return result;
-		} else {
-			mutex_unlock(&ftdi->u132_lock);
-			msleep(100);
-			goto wait;
-		}
-	}
-}
-
-static int ftdi_elan_read_config(struct usb_ftdi *ftdi, int config_offset,
-				 u8 width, u32 *data)
-{
-	u8 addressofs = config_offset / 4;
-wait:if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	} else {
-		int command_size;
-		int respond_size;
-		mutex_lock(&ftdi->u132_lock);
-		command_size = ftdi->command_next - ftdi->command_head;
-		respond_size = ftdi->respond_next - ftdi->respond_head;
-		if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE)
-		{
-			struct u132_command *command = &ftdi->command[
-				COMMAND_MASK & ftdi->command_next];
-			struct u132_respond *respond = &ftdi->respond[
-				RESPOND_MASK & ftdi->respond_next];
-			int result = -ENODEV;
-			respond->result = &result;
-			respond->header = command->header = 0x00 | (cPCIcfgrd &
-								    0x0F);
-			command->length = 0x04;
-			respond->address = command->address = addressofs;
-			command->width = 0x00 | (width & 0x0F);
-			command->follows = 0;
-			command->value = 0;
-			command->buffer = NULL;
-			respond->value = data;
-			init_completion(&respond->wait_completion);
-			ftdi->command_next += 1;
-			ftdi->respond_next += 1;
-			ftdi_elan_kick_command_queue(ftdi);
-			mutex_unlock(&ftdi->u132_lock);
-			wait_for_completion(&respond->wait_completion);
-			return result;
-		} else {
-			mutex_unlock(&ftdi->u132_lock);
-			msleep(100);
-			goto wait;
-		}
-	}
-}
-
-static int ftdi_elan_read_pcimem(struct usb_ftdi *ftdi, int mem_offset,
-				 u8 width, u32 *data)
-{
-	u8 addressofs = mem_offset / 4;
-wait:if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	} else {
-		int command_size;
-		int respond_size;
-		mutex_lock(&ftdi->u132_lock);
-		command_size = ftdi->command_next - ftdi->command_head;
-		respond_size = ftdi->respond_next - ftdi->respond_head;
-		if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE)
-		{
-			struct u132_command *command = &ftdi->command[
-				COMMAND_MASK & ftdi->command_next];
-			struct u132_respond *respond = &ftdi->respond[
-				RESPOND_MASK & ftdi->respond_next];
-			int result = -ENODEV;
-			respond->result = &result;
-			respond->header = command->header = 0x00 | (cPCImemrd &
-								    0x0F);
-			command->length = 0x04;
-			respond->address = command->address = addressofs;
-			command->width = 0x00 | (width & 0x0F);
-			command->follows = 0;
-			command->value = 0;
-			command->buffer = NULL;
-			respond->value = data;
-			init_completion(&respond->wait_completion);
-			ftdi->command_next += 1;
-			ftdi->respond_next += 1;
-			ftdi_elan_kick_command_queue(ftdi);
-			mutex_unlock(&ftdi->u132_lock);
-			wait_for_completion(&respond->wait_completion);
-			return result;
-		} else {
-			mutex_unlock(&ftdi->u132_lock);
-			msleep(100);
-			goto wait;
-		}
-	}
-}
-
-int usb_ftdi_elan_read_pcimem(struct platform_device *pdev, int mem_offset,
-			      u8 width, u32 *data)
-{
-	struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
-	if (ftdi->initialized == 0) {
-		return -ENODEV;
-	} else
-		return ftdi_elan_read_pcimem(ftdi, mem_offset, width, data);
-}
-
-
-EXPORT_SYMBOL_GPL(usb_ftdi_elan_read_pcimem);
-static int ftdi_elan_edset_setup(struct usb_ftdi *ftdi, u8 ed_number,
-				 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-				 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-						   int toggle_bits, int error_count, int condition_code, int repeat_number,
-						   int halted, int skipped, int actual, int non_null))
-{
-	u8 ed = ed_number - 1;
-wait:if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	} else if (ftdi->initialized == 0) {
-		return -ENODEV;
-	} else {
-		int command_size;
-		mutex_lock(&ftdi->u132_lock);
-		command_size = ftdi->command_next - ftdi->command_head;
-		if (command_size < COMMAND_SIZE) {
-			struct u132_target *target = &ftdi->target[ed];
-			struct u132_command *command = &ftdi->command[
-				COMMAND_MASK & ftdi->command_next];
-			command->header = 0x80 | (ed << 5);
-			command->length = 0x8007;
-			command->address = (toggle_bits << 6) | (ep_number << 2)
-				| (address << 0);
-			command->width = usb_maxpacket(urb->dev, urb->pipe);
-			command->follows = 8;
-			command->value = 0;
-			command->buffer = urb->setup_packet;
-			target->callback = callback;
-			target->endp = endp;
-			target->urb = urb;
-			target->active = 1;
-			ftdi->command_next += 1;
-			ftdi_elan_kick_command_queue(ftdi);
-			mutex_unlock(&ftdi->u132_lock);
-			return 0;
-		} else {
-			mutex_unlock(&ftdi->u132_lock);
-			msleep(100);
-			goto wait;
-		}
-	}
-}
-
-int usb_ftdi_elan_edset_setup(struct platform_device *pdev, u8 ed_number,
-			      void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-			      void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-						int toggle_bits, int error_count, int condition_code, int repeat_number,
-						int halted, int skipped, int actual, int non_null))
-{
-	struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
-	return ftdi_elan_edset_setup(ftdi, ed_number, endp, urb, address,
-				     ep_number, toggle_bits, callback);
-}
-
-
-EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_setup);
-static int ftdi_elan_edset_input(struct usb_ftdi *ftdi, u8 ed_number,
-				 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-				 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-						   int toggle_bits, int error_count, int condition_code, int repeat_number,
-						   int halted, int skipped, int actual, int non_null))
-{
-	u8 ed = ed_number - 1;
-wait:if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	} else if (ftdi->initialized == 0) {
-		return -ENODEV;
-	} else {
-		int command_size;
-		mutex_lock(&ftdi->u132_lock);
-		command_size = ftdi->command_next - ftdi->command_head;
-		if (command_size < COMMAND_SIZE) {
-			struct u132_target *target = &ftdi->target[ed];
-			struct u132_command *command = &ftdi->command[
-				COMMAND_MASK & ftdi->command_next];
-			u32 remaining_length = urb->transfer_buffer_length -
-				urb->actual_length;
-			command->header = 0x82 | (ed << 5);
-			if (remaining_length == 0) {
-				command->length = 0x0000;
-			} else if (remaining_length > 1024) {
-				command->length = 0x8000 | 1023;
-			} else
-				command->length = 0x8000 | (remaining_length -
-							    1);
-			command->address = (toggle_bits << 6) | (ep_number << 2)
-				| (address << 0);
-			command->width = usb_maxpacket(urb->dev, urb->pipe);
-			command->follows = 0;
-			command->value = 0;
-			command->buffer = NULL;
-			target->callback = callback;
-			target->endp = endp;
-			target->urb = urb;
-			target->active = 1;
-			ftdi->command_next += 1;
-			ftdi_elan_kick_command_queue(ftdi);
-			mutex_unlock(&ftdi->u132_lock);
-			return 0;
-		} else {
-			mutex_unlock(&ftdi->u132_lock);
-			msleep(100);
-			goto wait;
-		}
-	}
-}
-
-int usb_ftdi_elan_edset_input(struct platform_device *pdev, u8 ed_number,
-			      void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-			      void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-						int toggle_bits, int error_count, int condition_code, int repeat_number,
-						int halted, int skipped, int actual, int non_null))
-{
-	struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
-	return ftdi_elan_edset_input(ftdi, ed_number, endp, urb, address,
-				     ep_number, toggle_bits, callback);
-}
-
-
-EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_input);
-static int ftdi_elan_edset_empty(struct usb_ftdi *ftdi, u8 ed_number,
-				 void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-				 void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-						   int toggle_bits, int error_count, int condition_code, int repeat_number,
-						   int halted, int skipped, int actual, int non_null))
-{
-	u8 ed = ed_number - 1;
-wait:if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	} else if (ftdi->initialized == 0) {
-		return -ENODEV;
-	} else {
-		int command_size;
-		mutex_lock(&ftdi->u132_lock);
-		command_size = ftdi->command_next - ftdi->command_head;
-		if (command_size < COMMAND_SIZE) {
-			struct u132_target *target = &ftdi->target[ed];
-			struct u132_command *command = &ftdi->command[
-				COMMAND_MASK & ftdi->command_next];
-			command->header = 0x81 | (ed << 5);
-			command->length = 0x0000;
-			command->address = (toggle_bits << 6) | (ep_number << 2)
-				| (address << 0);
-			command->width = usb_maxpacket(urb->dev, urb->pipe);
-			command->follows = 0;
-			command->value = 0;
-			command->buffer = NULL;
-			target->callback = callback;
-			target->endp = endp;
-			target->urb = urb;
-			target->active = 1;
-			ftdi->command_next += 1;
-			ftdi_elan_kick_command_queue(ftdi);
-			mutex_unlock(&ftdi->u132_lock);
-			return 0;
-		} else {
-			mutex_unlock(&ftdi->u132_lock);
-			msleep(100);
-			goto wait;
-		}
-	}
-}
-
-int usb_ftdi_elan_edset_empty(struct platform_device *pdev, u8 ed_number,
-			      void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-			      void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-						int toggle_bits, int error_count, int condition_code, int repeat_number,
-						int halted, int skipped, int actual, int non_null))
-{
-	struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
-	return ftdi_elan_edset_empty(ftdi, ed_number, endp, urb, address,
-				     ep_number, toggle_bits, callback);
-}
-
-
-EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_empty);
-static int ftdi_elan_edset_output(struct usb_ftdi *ftdi, u8 ed_number,
-				  void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-				  void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-						    int toggle_bits, int error_count, int condition_code, int repeat_number,
-						    int halted, int skipped, int actual, int non_null))
-{
-	u8 ed = ed_number - 1;
-wait:if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	} else if (ftdi->initialized == 0) {
-		return -ENODEV;
-	} else {
-		int command_size;
-		mutex_lock(&ftdi->u132_lock);
-		command_size = ftdi->command_next - ftdi->command_head;
-		if (command_size < COMMAND_SIZE) {
-			u8 *b;
-			u16 urb_size;
-			int i = 0;
-			char data[30 *3 + 4];
-			char *d = data;
-			int m = (sizeof(data) - 1) / 3 - 1;
-			struct u132_target *target = &ftdi->target[ed];
-			struct u132_command *command = &ftdi->command[
-				COMMAND_MASK & ftdi->command_next];
-			command->header = 0x81 | (ed << 5);
-			command->address = (toggle_bits << 6) | (ep_number << 2)
-				| (address << 0);
-			command->width = usb_maxpacket(urb->dev, urb->pipe);
-			command->follows = min_t(u32, 1024,
-						 urb->transfer_buffer_length -
-						 urb->actual_length);
-			command->value = 0;
-			command->buffer = urb->transfer_buffer +
-				urb->actual_length;
-			command->length = 0x8000 | (command->follows - 1);
-			b = command->buffer;
-			urb_size = command->follows;
-			data[0] = 0;
-			while (urb_size-- > 0) {
-				if (i > m) {
-				} else if (i++ < m) {
-					int w = sprintf(d, " %02X", *b++);
-					d += w;
-				} else
-					d += sprintf(d, " ..");
-			}
-			target->callback = callback;
-			target->endp = endp;
-			target->urb = urb;
-			target->active = 1;
-			ftdi->command_next += 1;
-			ftdi_elan_kick_command_queue(ftdi);
-			mutex_unlock(&ftdi->u132_lock);
-			return 0;
-		} else {
-			mutex_unlock(&ftdi->u132_lock);
-			msleep(100);
-			goto wait;
-		}
-	}
-}
-
-int usb_ftdi_elan_edset_output(struct platform_device *pdev, u8 ed_number,
-			       void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-			       void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-						 int toggle_bits, int error_count, int condition_code, int repeat_number,
-						 int halted, int skipped, int actual, int non_null))
-{
-	struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
-	return ftdi_elan_edset_output(ftdi, ed_number, endp, urb, address,
-				      ep_number, toggle_bits, callback);
-}
-
-
-EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_output);
-static int ftdi_elan_edset_single(struct usb_ftdi *ftdi, u8 ed_number,
-				  void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-				  void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-						    int toggle_bits, int error_count, int condition_code, int repeat_number,
-						    int halted, int skipped, int actual, int non_null))
-{
-	u8 ed = ed_number - 1;
-wait:if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	} else if (ftdi->initialized == 0) {
-		return -ENODEV;
-	} else {
-		int command_size;
-		mutex_lock(&ftdi->u132_lock);
-		command_size = ftdi->command_next - ftdi->command_head;
-		if (command_size < COMMAND_SIZE) {
-			u32 remaining_length = urb->transfer_buffer_length -
-				urb->actual_length;
-			struct u132_target *target = &ftdi->target[ed];
-			struct u132_command *command = &ftdi->command[
-				COMMAND_MASK & ftdi->command_next];
-			command->header = 0x83 | (ed << 5);
-			if (remaining_length == 0) {
-				command->length = 0x0000;
-			} else if (remaining_length > 1024) {
-				command->length = 0x8000 | 1023;
-			} else
-				command->length = 0x8000 | (remaining_length -
-							    1);
-			command->address = (toggle_bits << 6) | (ep_number << 2)
-				| (address << 0);
-			command->width = usb_maxpacket(urb->dev, urb->pipe);
-			command->follows = 0;
-			command->value = 0;
-			command->buffer = NULL;
-			target->callback = callback;
-			target->endp = endp;
-			target->urb = urb;
-			target->active = 1;
-			ftdi->command_next += 1;
-			ftdi_elan_kick_command_queue(ftdi);
-			mutex_unlock(&ftdi->u132_lock);
-			return 0;
-		} else {
-			mutex_unlock(&ftdi->u132_lock);
-			msleep(100);
-			goto wait;
-		}
-	}
-}
-
-int usb_ftdi_elan_edset_single(struct platform_device *pdev, u8 ed_number,
-			       void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits,
-			       void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
-						 int toggle_bits, int error_count, int condition_code, int repeat_number,
-						 int halted, int skipped, int actual, int non_null))
-{
-	struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
-	return ftdi_elan_edset_single(ftdi, ed_number, endp, urb, address,
-				      ep_number, toggle_bits, callback);
-}
-
-
-EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_single);
-static int ftdi_elan_edset_flush(struct usb_ftdi *ftdi, u8 ed_number,
-				 void *endp)
-{
-	u8 ed = ed_number - 1;
-	if (ftdi->disconnected > 0) {
-		return -ENODEV;
-	} else if (ftdi->initialized == 0) {
-		return -ENODEV;
-	} else {
-		struct u132_target *target = &ftdi->target[ed];
-		mutex_lock(&ftdi->u132_lock);
-		if (target->abandoning > 0) {
-			mutex_unlock(&ftdi->u132_lock);
-			return 0;
-		} else {
-			target->abandoning = 1;
-		wait_1:if (target->active == 1) {
-				int command_size = ftdi->command_next -
-					ftdi->command_head;
-				if (command_size < COMMAND_SIZE) {
-					struct u132_command *command =
-						&ftdi->command[COMMAND_MASK &
-							       ftdi->command_next];
-					command->header = 0x80 | (ed << 5) |
-						0x4;
-					command->length = 0x00;
-					command->address = 0x00;
-					command->width = 0x00;
-					command->follows = 0;
-					command->value = 0;
-					command->buffer = &command->value;
-					ftdi->command_next += 1;
-					ftdi_elan_kick_command_queue(ftdi);
-				} else {
-					mutex_unlock(&ftdi->u132_lock);
-					msleep(100);
-					mutex_lock(&ftdi->u132_lock);
-					goto wait_1;
-				}
-			}
-			mutex_unlock(&ftdi->u132_lock);
-			return 0;
-		}
-	}
-}
-
-int usb_ftdi_elan_edset_flush(struct platform_device *pdev, u8 ed_number,
-			      void *endp)
-{
-	struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev);
-	return ftdi_elan_edset_flush(ftdi, ed_number, endp);
-}
-
-
-EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_flush);
-static int ftdi_elan_flush_input_fifo(struct usb_ftdi *ftdi)
-{
-	int retry_on_empty = 10;
-	int retry_on_timeout = 5;
-	int retry_on_status = 20;
-more:{
-		int packet_bytes = 0;
-		int retval = usb_bulk_msg(ftdi->udev,
-					  usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr),
-					  ftdi->bulk_in_buffer, ftdi->bulk_in_size,
-					  &packet_bytes, 100);
-		if (packet_bytes > 2) {
-			char diag[30 *3 + 4];
-			char *d = diag;
-			int m = (sizeof(diag) - 1) / 3 - 1;
-			char *b = ftdi->bulk_in_buffer;
-			int bytes_read = 0;
-			diag[0] = 0;
-			while (packet_bytes-- > 0) {
-				char c = *b++;
-				if (bytes_read < m) {
-					d += sprintf(d, " %02X",
-						     0x000000FF & c);
-				} else if (bytes_read > m) {
-				} else
-					d += sprintf(d, " ..");
-				bytes_read += 1;
-				continue;
-			}
-			goto more;
-		} else if (packet_bytes > 1) {
-			char s1 = ftdi->bulk_in_buffer[0];
-			char s2 = ftdi->bulk_in_buffer[1];
-			if (s1 == 0x31 && s2 == 0x60) {
-				return 0;
-			} else if (retry_on_status-- > 0) {
-				goto more;
-			} else {
-				dev_err(&ftdi->udev->dev, "STATUS ERROR retry limit reached\n");
-				return -EFAULT;
-			}
-		} else if (packet_bytes > 0) {
-			char b1 = ftdi->bulk_in_buffer[0];
-			dev_err(&ftdi->udev->dev, "only one byte flushed from FTDI = %02X\n",
-				b1);
-			if (retry_on_status-- > 0) {
-				goto more;
-			} else {
-				dev_err(&ftdi->udev->dev, "STATUS ERROR retry limit reached\n");
-				return -EFAULT;
-			}
-		} else if (retval == -ETIMEDOUT) {
-			if (retry_on_timeout-- > 0) {
-				goto more;
-			} else {
-				dev_err(&ftdi->udev->dev, "TIMED OUT retry limit reached\n");
-				return -ENOMEM;
-			}
-		} else if (retval == 0) {
-			if (retry_on_empty-- > 0) {
-				goto more;
-			} else {
-				dev_err(&ftdi->udev->dev, "empty packet retry limit reached\n");
-				return -ENOMEM;
-			}
-		} else {
-			dev_err(&ftdi->udev->dev, "error = %d\n", retval);
-			return retval;
-		}
-	}
-	return -1;
-}
-
-
-/*
- * send the long flush sequence
- *
- */
-static int ftdi_elan_synchronize_flush(struct usb_ftdi *ftdi)
-{
-	int retval;
-	struct urb *urb;
-	char *buf;
-	int I = 257;
-	int i = 0;
-	urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!urb)
-		return -ENOMEM;
-	buf = usb_alloc_coherent(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma);
-	if (!buf) {
-		dev_err(&ftdi->udev->dev, "could not get a buffer for flush sequence\n");
-		usb_free_urb(urb);
-		return -ENOMEM;
-	}
-	while (I-- > 0)
-		buf[i++] = 0x55;
-	usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev,
-							   ftdi->bulk_out_endpointAddr), buf, i,
-			  ftdi_elan_write_bulk_callback, ftdi);
-	urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
-	retval = usb_submit_urb(urb, GFP_KERNEL);
-	if (retval) {
-		dev_err(&ftdi->udev->dev, "failed to submit urb containing the flush sequence\n");
-		usb_free_coherent(ftdi->udev, i, buf, urb->transfer_dma);
-		usb_free_urb(urb);
-		return -ENOMEM;
-	}
-	usb_free_urb(urb);
-	return 0;
-}
-
-
-/*
- * send the reset sequence
- *
- */
-static int ftdi_elan_synchronize_reset(struct usb_ftdi *ftdi)
-{
-	int retval;
-	struct urb *urb;
-	char *buf;
-	int I = 4;
-	int i = 0;
-	urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!urb)
-		return -ENOMEM;
-	buf = usb_alloc_coherent(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma);
-	if (!buf) {
-		dev_err(&ftdi->udev->dev, "could not get a buffer for the reset sequence\n");
-		usb_free_urb(urb);
-		return -ENOMEM;
-	}
-	buf[i++] = 0x55;
-	buf[i++] = 0xAA;
-	buf[i++] = 0x5A;
-	buf[i++] = 0xA5;
-	usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev,
-							   ftdi->bulk_out_endpointAddr), buf, i,
-			  ftdi_elan_write_bulk_callback, ftdi);
-	urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
-	retval = usb_submit_urb(urb, GFP_KERNEL);
-	if (retval) {
-		dev_err(&ftdi->udev->dev, "failed to submit urb containing the reset sequence\n");
-		usb_free_coherent(ftdi->udev, i, buf, urb->transfer_dma);
-		usb_free_urb(urb);
-		return -ENOMEM;
-	}
-	usb_free_urb(urb);
-	return 0;
-}
-
-static int ftdi_elan_synchronize(struct usb_ftdi *ftdi)
-{
-	int retval;
-	int long_stop = 10;
-	int retry_on_timeout = 5;
-	int retry_on_empty = 10;
-	retval = ftdi_elan_flush_input_fifo(ftdi);
-	if (retval)
-		return retval;
-	ftdi->bulk_in_left = 0;
-	ftdi->bulk_in_last = -1;
-	while (long_stop-- > 0) {
-		int read_stop;
-		int read_stuck;
-		retval = ftdi_elan_synchronize_flush(ftdi);
-		if (retval)
-			return retval;
-		retval = ftdi_elan_flush_input_fifo(ftdi);
-		if (retval)
-			return retval;
-	reset:retval = ftdi_elan_synchronize_reset(ftdi);
-		if (retval)
-			return retval;
-		read_stop = 100;
-		read_stuck = 10;
-	read:{
-			int packet_bytes = 0;
-			retval = usb_bulk_msg(ftdi->udev,
-					      usb_rcvbulkpipe(ftdi->udev,
-							      ftdi->bulk_in_endpointAddr),
-					      ftdi->bulk_in_buffer, ftdi->bulk_in_size,
-					      &packet_bytes, 500);
-			if (packet_bytes > 2) {
-				char diag[30 *3 + 4];
-				char *d = diag;
-				int m = (sizeof(diag) - 1) / 3 - 1;
-				char *b = ftdi->bulk_in_buffer;
-				int bytes_read = 0;
-				unsigned char c = 0;
-				diag[0] = 0;
-				while (packet_bytes-- > 0) {
-					c = *b++;
-					if (bytes_read < m) {
-						d += sprintf(d, " %02X", c);
-					} else if (bytes_read > m) {
-					} else
-						d += sprintf(d, " ..");
-					bytes_read += 1;
-					continue;
-				}
-				if (c == 0x7E) {
-					return 0;
-				} else {
-					if (c == 0x55) {
-						goto read;
-					} else if (read_stop-- > 0) {
-						goto read;
-					} else {
-						dev_err(&ftdi->udev->dev, "retry limit reached\n");
-						continue;
-					}
-				}
-			} else if (packet_bytes > 1) {
-				unsigned char s1 = ftdi->bulk_in_buffer[0];
-				unsigned char s2 = ftdi->bulk_in_buffer[1];
-				if (s1 == 0x31 && s2 == 0x00) {
-					if (read_stuck-- > 0) {
-						goto read;
-					} else
-						goto reset;
-				} else {
-					if (read_stop-- > 0) {
-						goto read;
-					} else {
-						dev_err(&ftdi->udev->dev, "retry limit reached\n");
-						continue;
-					}
-				}
-			} else if (packet_bytes > 0) {
-				if (read_stop-- > 0) {
-					goto read;
-				} else {
-					dev_err(&ftdi->udev->dev, "retry limit reached\n");
-					continue;
-				}
-			} else if (retval == -ETIMEDOUT) {
-				if (retry_on_timeout-- > 0) {
-					goto read;
-				} else {
-					dev_err(&ftdi->udev->dev, "TIMED OUT retry limit reached\n");
-					continue;
-				}
-			} else if (retval == 0) {
-				if (retry_on_empty-- > 0) {
-					goto read;
-				} else {
-					dev_err(&ftdi->udev->dev, "empty packet retry limit reached\n");
-					continue;
-				}
-			} else {
-				dev_err(&ftdi->udev->dev, "error = %d\n",
-					retval);
-				if (read_stop-- > 0) {
-					goto read;
-				} else {
-					dev_err(&ftdi->udev->dev, "retry limit reached\n");
-					continue;
-				}
-			}
-		}
-	}
-	dev_err(&ftdi->udev->dev, "failed to synchronize\n");
-	return -EFAULT;
-}
-
-static int ftdi_elan_stuck_waiting(struct usb_ftdi *ftdi)
-{
-	int retry_on_empty = 10;
-	int retry_on_timeout = 5;
-	int retry_on_status = 50;
-more:{
-		int packet_bytes = 0;
-		int retval = usb_bulk_msg(ftdi->udev,
-					  usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr),
-					  ftdi->bulk_in_buffer, ftdi->bulk_in_size,
-					  &packet_bytes, 1000);
-		if (packet_bytes > 2) {
-			char diag[30 *3 + 4];
-			char *d = diag;
-			int m = (sizeof(diag) - 1) / 3 - 1;
-			char *b = ftdi->bulk_in_buffer;
-			int bytes_read = 0;
-			diag[0] = 0;
-			while (packet_bytes-- > 0) {
-				char c = *b++;
-				if (bytes_read < m) {
-					d += sprintf(d, " %02X",
-						     0x000000FF & c);
-				} else if (bytes_read > m) {
-				} else
-					d += sprintf(d, " ..");
-				bytes_read += 1;
-			}
-			goto more;
-		} else if (packet_bytes > 1) {
-			char s1 = ftdi->bulk_in_buffer[0];
-			char s2 = ftdi->bulk_in_buffer[1];
-			if (s1 == 0x31 && s2 == 0x60) {
-				return 0;
-			} else if (retry_on_status-- > 0) {
-				msleep(5);
-				goto more;
-			} else
-				return -EFAULT;
-		} else if (packet_bytes > 0) {
-			char b1 = ftdi->bulk_in_buffer[0];
-			dev_err(&ftdi->udev->dev, "only one byte flushed from FTDI = %02X\n", b1);
-			if (retry_on_status-- > 0) {
-				msleep(5);
-				goto more;
-			} else {
-				dev_err(&ftdi->udev->dev, "STATUS ERROR retry limit reached\n");
-				return -EFAULT;
-			}
-		} else if (retval == -ETIMEDOUT) {
-			if (retry_on_timeout-- > 0) {
-				goto more;
-			} else {
-				dev_err(&ftdi->udev->dev, "TIMED OUT retry limit reached\n");
-				return -ENOMEM;
-			}
-		} else if (retval == 0) {
-			if (retry_on_empty-- > 0) {
-				goto more;
-			} else {
-				dev_err(&ftdi->udev->dev, "empty packet retry limit reached\n");
-				return -ENOMEM;
-			}
-		} else {
-			dev_err(&ftdi->udev->dev, "error = %d\n", retval);
-			return -ENOMEM;
-		}
-	}
-	return -1;
-}
-
-static int ftdi_elan_checkingPCI(struct usb_ftdi *ftdi)
-{
-	int UxxxStatus = ftdi_elan_read_reg(ftdi, &ftdi->controlreg);
-	if (UxxxStatus)
-		return UxxxStatus;
-	if (ftdi->controlreg & 0x00400000) {
-		if (ftdi->card_ejected) {
-		} else {
-			ftdi->card_ejected = 1;
-			dev_err(&ftdi->udev->dev, "CARD EJECTED - controlreg = %08X\n",
-				ftdi->controlreg);
-		}
-		return -ENODEV;
-	} else {
-		u8 fn = ftdi->function - 1;
-		int activePCIfn = fn << 8;
-		u32 pcidata;
-		u32 pciVID;
-		u32 pciPID;
-		int reg = 0;
-		UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
-						   &pcidata);
-		if (UxxxStatus)
-			return UxxxStatus;
-		pciVID = pcidata & 0xFFFF;
-		pciPID = (pcidata >> 16) & 0xFFFF;
-		if (pciVID == ftdi->platform_data.vendor && pciPID ==
-		    ftdi->platform_data.device) {
-			return 0;
-		} else {
-			dev_err(&ftdi->udev->dev, "vendor=%04X pciVID=%04X device=%04X pciPID=%04X\n",
-				ftdi->platform_data.vendor, pciVID,
-				ftdi->platform_data.device, pciPID);
-			return -ENODEV;
-		}
-	}
-}
-
-
-#define ftdi_read_pcimem(ftdi, member, data) ftdi_elan_read_pcimem(ftdi, \
-								   offsetof(struct ohci_regs, member), 0, data);
-#define ftdi_write_pcimem(ftdi, member, data) ftdi_elan_write_pcimem(ftdi, \
-								     offsetof(struct ohci_regs, member), 0, data);
-
-#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
-#define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD |	\
-			OHCI_INTR_WDH)
-static int ftdi_elan_check_controller(struct usb_ftdi *ftdi, int quirk)
-{
-	int devices = 0;
-	int retval;
-	u32 hc_control;
-	int num_ports;
-	u32 control;
-	u32 rh_a = -1;
-	u32 status;
-	u32 fminterval;
-	u32 hc_fminterval;
-	u32 periodicstart;
-	u32 cmdstatus;
-	u32 roothub_a;
-	int mask = OHCI_INTR_INIT;
-	int sleep_time = 0;
-	int reset_timeout = 30;        /* ... allow extra time */
-	int temp;
-	retval = ftdi_write_pcimem(ftdi, intrdisable, OHCI_INTR_MIE);
-	if (retval)
-		return retval;
-	retval = ftdi_read_pcimem(ftdi, control, &control);
-	if (retval)
-		return retval;
-	retval = ftdi_read_pcimem(ftdi, roothub.a, &rh_a);
-	if (retval)
-		return retval;
-	num_ports = rh_a & RH_A_NDP;
-	retval = ftdi_read_pcimem(ftdi, fminterval, &hc_fminterval);
-	if (retval)
-		return retval;
-	hc_fminterval &= 0x3fff;
-	if (hc_fminterval != FI) {
-	}
-	hc_fminterval |= FSMP(hc_fminterval) << 16;
-	retval = ftdi_read_pcimem(ftdi, control, &hc_control);
-	if (retval)
-		return retval;
-	switch (hc_control & OHCI_CTRL_HCFS) {
-	case OHCI_USB_OPER:
-		sleep_time = 0;
-		break;
-	case OHCI_USB_SUSPEND:
-	case OHCI_USB_RESUME:
-		hc_control &= OHCI_CTRL_RWC;
-		hc_control |= OHCI_USB_RESUME;
-		sleep_time = 10;
-		break;
-	default:
-		hc_control &= OHCI_CTRL_RWC;
-		hc_control |= OHCI_USB_RESET;
-		sleep_time = 50;
-		break;
-	}
-	retval = ftdi_write_pcimem(ftdi, control, hc_control);
-	if (retval)
-		return retval;
-	retval = ftdi_read_pcimem(ftdi, control, &control);
-	if (retval)
-		return retval;
-	msleep(sleep_time);
-	retval = ftdi_read_pcimem(ftdi, roothub.a, &roothub_a);
-	if (retval)
-		return retval;
-	if (!(roothub_a & RH_A_NPS)) {        /* power down each port */
-		for (temp = 0; temp < num_ports; temp++) {
-			retval = ftdi_write_pcimem(ftdi,
-						   roothub.portstatus[temp], RH_PS_LSDA);
-			if (retval)
-				return retval;
-		}
-	}
-	retval = ftdi_read_pcimem(ftdi, control, &control);
-	if (retval)
-		return retval;
-retry:retval = ftdi_read_pcimem(ftdi, cmdstatus, &status);
-	if (retval)
-		return retval;
-	retval = ftdi_write_pcimem(ftdi, cmdstatus, OHCI_HCR);
-	if (retval)
-		return retval;
-extra:{
-		retval = ftdi_read_pcimem(ftdi, cmdstatus, &status);
-		if (retval)
-			return retval;
-		if (0 != (status & OHCI_HCR)) {
-			if (--reset_timeout == 0) {
-				dev_err(&ftdi->udev->dev, "USB HC reset timed out!\n");
-				return -ENODEV;
-			} else {
-				msleep(5);
-				goto extra;
-			}
-		}
-	}
-	if (quirk & OHCI_QUIRK_INITRESET) {
-		retval = ftdi_write_pcimem(ftdi, control, hc_control);
-		if (retval)
-			return retval;
-		retval = ftdi_read_pcimem(ftdi, control, &control);
-		if (retval)
-			return retval;
-	}
-	retval = ftdi_write_pcimem(ftdi, ed_controlhead, 0x00000000);
-	if (retval)
-		return retval;
-	retval = ftdi_write_pcimem(ftdi, ed_bulkhead, 0x11000000);
-	if (retval)
-		return retval;
-	retval = ftdi_write_pcimem(ftdi, hcca, 0x00000000);
-	if (retval)
-		return retval;
-	retval = ftdi_read_pcimem(ftdi, fminterval, &fminterval);
-	if (retval)
-		return retval;
-	retval = ftdi_write_pcimem(ftdi, fminterval,
-				   ((fminterval & FIT) ^ FIT) | hc_fminterval);
-	if (retval)
-		return retval;
-	retval = ftdi_write_pcimem(ftdi, periodicstart,
-				   ((9 *hc_fminterval) / 10) & 0x3fff);
-	if (retval)
-		return retval;
-	retval = ftdi_read_pcimem(ftdi, fminterval, &fminterval);
-	if (retval)
-		return retval;
-	retval = ftdi_read_pcimem(ftdi, periodicstart, &periodicstart);
-	if (retval)
-		return retval;
-	if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) {
-		if (!(quirk & OHCI_QUIRK_INITRESET)) {
-			quirk |= OHCI_QUIRK_INITRESET;
-			goto retry;
-		} else
-			dev_err(&ftdi->udev->dev, "init err(%08x %04x)\n",
-				fminterval, periodicstart);
-	}                        /* start controller operations */
-	hc_control &= OHCI_CTRL_RWC;
-	hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER;
-	retval = ftdi_write_pcimem(ftdi, control, hc_control);
-	if (retval)
-		return retval;
-	retval = ftdi_write_pcimem(ftdi, cmdstatus, OHCI_BLF);
-	if (retval)
-		return retval;
-	retval = ftdi_read_pcimem(ftdi, cmdstatus, &cmdstatus);
-	if (retval)
-		return retval;
-	retval = ftdi_read_pcimem(ftdi, control, &control);
-	if (retval)
-		return retval;
-	retval = ftdi_write_pcimem(ftdi, roothub.status, RH_HS_DRWE);
-	if (retval)
-		return retval;
-	retval = ftdi_write_pcimem(ftdi, intrstatus, mask);
-	if (retval)
-		return retval;
-	retval = ftdi_write_pcimem(ftdi, intrdisable,
-				   OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO |
-				   OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH |
-				   OHCI_INTR_SO);
-	if (retval)
-		return retval;        /* handle root hub init quirks ... */
-	retval = ftdi_read_pcimem(ftdi, roothub.a, &roothub_a);
-	if (retval)
-		return retval;
-	roothub_a &= ~(RH_A_PSM | RH_A_OCPM);
-	if (quirk & OHCI_QUIRK_SUPERIO) {
-		roothub_a |= RH_A_NOCP;
-		roothub_a &= ~(RH_A_POTPGT | RH_A_NPS);
-		retval = ftdi_write_pcimem(ftdi, roothub.a, roothub_a);
-		if (retval)
-			return retval;
-	} else if ((quirk & OHCI_QUIRK_AMD756) || distrust_firmware) {
-		roothub_a |= RH_A_NPS;
-		retval = ftdi_write_pcimem(ftdi, roothub.a, roothub_a);
-		if (retval)
-			return retval;
-	}
-	retval = ftdi_write_pcimem(ftdi, roothub.status, RH_HS_LPSC);
-	if (retval)
-		return retval;
-	retval = ftdi_write_pcimem(ftdi, roothub.b,
-				   (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM);
-	if (retval)
-		return retval;
-	retval = ftdi_read_pcimem(ftdi, control, &control);
-	if (retval)
-		return retval;
-	mdelay((roothub_a >> 23) & 0x1fe);
-	for (temp = 0; temp < num_ports; temp++) {
-		u32 portstatus;
-		retval = ftdi_read_pcimem(ftdi, roothub.portstatus[temp],
-					  &portstatus);
-		if (retval)
-			return retval;
-		if (1 & portstatus)
-			devices += 1;
-	}
-	return devices;
-}
-
-static int ftdi_elan_setup_controller(struct usb_ftdi *ftdi, int fn)
-{
-	u32 latence_timer;
-	int UxxxStatus;
-	u32 pcidata;
-	int reg = 0;
-	int activePCIfn = fn << 8;
-	UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x2800);
-	if (UxxxStatus)
-		return UxxxStatus;
-	reg = 16;
-	UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0,
-					    0xFFFFFFFF);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
-					   &pcidata);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0,
-					    0xF0000000);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
-					   &pcidata);
-	if (UxxxStatus)
-		return UxxxStatus;
-	reg = 12;
-	UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
-					   &latence_timer);
-	if (UxxxStatus)
-		return UxxxStatus;
-	latence_timer &= 0xFFFF00FF;
-	latence_timer |= 0x00001600;
-	UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00,
-					    latence_timer);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
-					   &pcidata);
-	if (UxxxStatus)
-		return UxxxStatus;
-	reg = 4;
-	UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00,
-					    0x06);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
-					   &pcidata);
-	if (UxxxStatus)
-		return UxxxStatus;
-	for (reg = 0; reg <= 0x54; reg += 4) {
-		UxxxStatus = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata);
-		if (UxxxStatus)
-			return UxxxStatus;
-	}
-	return 0;
-}
-
-static int ftdi_elan_close_controller(struct usb_ftdi *ftdi, int fn)
-{
-	u32 latence_timer;
-	int UxxxStatus;
-	u32 pcidata;
-	int reg = 0;
-	int activePCIfn = fn << 8;
-	UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x2800);
-	if (UxxxStatus)
-		return UxxxStatus;
-	reg = 16;
-	UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0,
-					    0xFFFFFFFF);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
-					   &pcidata);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0,
-					    0x00000000);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
-					   &pcidata);
-	if (UxxxStatus)
-		return UxxxStatus;
-	reg = 12;
-	UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
-					   &latence_timer);
-	if (UxxxStatus)
-		return UxxxStatus;
-	latence_timer &= 0xFFFF00FF;
-	latence_timer |= 0x00001600;
-	UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00,
-					    latence_timer);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
-					   &pcidata);
-	if (UxxxStatus)
-		return UxxxStatus;
-	reg = 4;
-	UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00,
-					    0x00);
-	if (UxxxStatus)
-		return UxxxStatus;
-	return ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, &pcidata);
-}
-
-static int ftdi_elan_found_controller(struct usb_ftdi *ftdi, int fn, int quirk)
-{
-	int result;
-	int UxxxStatus;
-	UxxxStatus = ftdi_elan_setup_controller(ftdi, fn);
-	if (UxxxStatus)
-		return UxxxStatus;
-	result = ftdi_elan_check_controller(ftdi, quirk);
-	UxxxStatus = ftdi_elan_close_controller(ftdi, fn);
-	if (UxxxStatus)
-		return UxxxStatus;
-	return result;
-}
-
-static int ftdi_elan_enumeratePCI(struct usb_ftdi *ftdi)
-{
-	u32 controlreg;
-	u8 sensebits;
-	int UxxxStatus;
-	UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000000L);
-	if (UxxxStatus)
-		return UxxxStatus;
-	msleep(750);
-	UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000200L | 0x100);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000200L | 0x500);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020CL | 0x000);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020DL | 0x000);
-	if (UxxxStatus)
-		return UxxxStatus;
-	msleep(250);
-	UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020FL | 0x000);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x800);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
-	if (UxxxStatus)
-		return UxxxStatus;
-	UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg);
-	if (UxxxStatus)
-		return UxxxStatus;
-	msleep(1000);
-	sensebits = (controlreg >> 16) & 0x000F;
-	if (0x0D == sensebits)
-		return 0;
-	else
-		return - ENXIO;
-}
-
-static int ftdi_elan_setupOHCI(struct usb_ftdi *ftdi)
-{
-	int UxxxStatus;
-	u32 pcidata;
-	int reg = 0;
-	u8 fn;
-	int activePCIfn = 0;
-	int max_devices = 0;
-	int controllers = 0;
-	int unrecognized = 0;
-	ftdi->function = 0;
-	for (fn = 0; (fn < 4); fn++) {
-		u32 pciVID = 0;
-		u32 pciPID = 0;
-		int devices = 0;
-		activePCIfn = fn << 8;
-		UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0,
-						   &pcidata);
-		if (UxxxStatus)
-			return UxxxStatus;
-		pciVID = pcidata & 0xFFFF;
-		pciPID = (pcidata >> 16) & 0xFFFF;
-		if ((pciVID == PCI_VENDOR_ID_OPTI) && (pciPID == 0xc861)) {
-			devices = ftdi_elan_found_controller(ftdi, fn, 0);
-			controllers += 1;
-		} else if ((pciVID == PCI_VENDOR_ID_NEC) && (pciPID == 0x0035))
-		{
-			devices = ftdi_elan_found_controller(ftdi, fn, 0);
-			controllers += 1;
-		} else if ((pciVID == PCI_VENDOR_ID_AL) && (pciPID == 0x5237)) {
-			devices = ftdi_elan_found_controller(ftdi, fn, 0);
-			controllers += 1;
-		} else if ((pciVID == PCI_VENDOR_ID_ATT) && (pciPID == 0x5802))
-		{
-			devices = ftdi_elan_found_controller(ftdi, fn, 0);
-			controllers += 1;
-		} else if (pciVID == PCI_VENDOR_ID_AMD && pciPID == 0x740c) {
-			devices = ftdi_elan_found_controller(ftdi, fn,
-							     OHCI_QUIRK_AMD756);
-			controllers += 1;
-		} else if (pciVID == PCI_VENDOR_ID_COMPAQ && pciPID == 0xa0f8) {
-			devices = ftdi_elan_found_controller(ftdi, fn,
-							     OHCI_QUIRK_ZFMICRO);
-			controllers += 1;
-		} else if (0 == pcidata) {
-		} else
-			unrecognized += 1;
-		if (devices > max_devices) {
-			max_devices = devices;
-			ftdi->function = fn + 1;
-			ftdi->platform_data.vendor = pciVID;
-			ftdi->platform_data.device = pciPID;
-		}
-	}
-	if (ftdi->function > 0) {
-		return ftdi_elan_setup_controller(ftdi,	ftdi->function - 1);
-	} else if (controllers > 0) {
-		return -ENXIO;
-	} else if (unrecognized > 0) {
-		return -ENXIO;
-	} else {
-		ftdi->enumerated = 0;
-		return -ENXIO;
-	}
-}
-
-
-/*
- * we use only the first bulk-in and bulk-out endpoints
- */
-static int ftdi_elan_probe(struct usb_interface *interface,
-			   const struct usb_device_id *id)
-{
-	struct usb_host_interface *iface_desc;
-	struct usb_endpoint_descriptor *bulk_in, *bulk_out;
-	int retval;
-	struct usb_ftdi *ftdi;
-
-	ftdi = kzalloc(sizeof(struct usb_ftdi), GFP_KERNEL);
-	if (!ftdi)
-		return -ENOMEM;
-
-	mutex_lock(&ftdi_module_lock);
-	list_add_tail(&ftdi->ftdi_list, &ftdi_static_list);
-	ftdi->sequence_num = ++ftdi_instances;
-	mutex_unlock(&ftdi_module_lock);
-	ftdi_elan_init_kref(ftdi);
-	sema_init(&ftdi->sw_lock, 1);
-	ftdi->udev = usb_get_dev(interface_to_usbdev(interface));
-	ftdi->interface = interface;
-	mutex_init(&ftdi->u132_lock);
-	ftdi->expected = 4;
-
-	iface_desc = interface->cur_altsetting;
-	retval = usb_find_common_endpoints(iface_desc,
-			&bulk_in, &bulk_out, NULL, NULL);
-	if (retval) {
-		dev_err(&ftdi->udev->dev, "Could not find both bulk-in and bulk-out endpoints\n");
-		goto error;
-	}
-
-	ftdi->bulk_in_size = usb_endpoint_maxp(bulk_in);
-	ftdi->bulk_in_endpointAddr = bulk_in->bEndpointAddress;
-	ftdi->bulk_in_buffer = kmalloc(ftdi->bulk_in_size, GFP_KERNEL);
-	if (!ftdi->bulk_in_buffer) {
-		retval = -ENOMEM;
-		goto error;
-	}
-
-	ftdi->bulk_out_endpointAddr = bulk_out->bEndpointAddress;
-
-	dev_info(&ftdi->udev->dev, "interface %d has I=%02X O=%02X\n",
-		 iface_desc->desc.bInterfaceNumber, ftdi->bulk_in_endpointAddr,
-		 ftdi->bulk_out_endpointAddr);
-	usb_set_intfdata(interface, ftdi);
-	if (iface_desc->desc.bInterfaceNumber == 0 &&
-	    ftdi->bulk_in_endpointAddr == 0x81 &&
-	    ftdi->bulk_out_endpointAddr == 0x02) {
-		retval = usb_register_dev(interface, &ftdi_elan_jtag_class);
-		if (retval) {
-			dev_err(&ftdi->udev->dev, "Not able to get a minor for this device\n");
-			usb_set_intfdata(interface, NULL);
-			retval = -ENOMEM;
-			goto error;
-		} else {
-			ftdi->class = &ftdi_elan_jtag_class;
-			dev_info(&ftdi->udev->dev, "USB FDTI=%p JTAG interface %d now attached to ftdi%d\n",
-				 ftdi, iface_desc->desc.bInterfaceNumber,
-				 interface->minor);
-			return 0;
-		}
-	} else if (iface_desc->desc.bInterfaceNumber == 1 &&
-		   ftdi->bulk_in_endpointAddr == 0x83 &&
-		   ftdi->bulk_out_endpointAddr == 0x04) {
-		ftdi->class = NULL;
-		dev_info(&ftdi->udev->dev, "USB FDTI=%p ELAN interface %d now activated\n",
-			 ftdi, iface_desc->desc.bInterfaceNumber);
-		INIT_DELAYED_WORK(&ftdi->status_work, ftdi_elan_status_work);
-		INIT_DELAYED_WORK(&ftdi->command_work, ftdi_elan_command_work);
-		INIT_DELAYED_WORK(&ftdi->respond_work, ftdi_elan_respond_work);
-		ftdi_status_queue_work(ftdi, msecs_to_jiffies(3 *1000));
-		return 0;
-	} else {
-		dev_err(&ftdi->udev->dev,
-			"Could not find ELAN's U132 device\n");
-		retval = -ENODEV;
-		goto error;
-	}
-error:if (ftdi) {
-		ftdi_elan_put_kref(ftdi);
-	}
-	return retval;
-}
-
-static void ftdi_elan_disconnect(struct usb_interface *interface)
-{
-	struct usb_ftdi *ftdi = usb_get_intfdata(interface);
-	ftdi->disconnected += 1;
-	if (ftdi->class) {
-		int minor = interface->minor;
-		struct usb_class_driver *class = ftdi->class;
-		usb_set_intfdata(interface, NULL);
-		usb_deregister_dev(interface, class);
-		dev_info(&ftdi->udev->dev, "USB FTDI U132 jtag interface on minor %d now disconnected\n",
-			 minor);
-	} else {
-		ftdi_status_cancel_work(ftdi);
-		ftdi_command_cancel_work(ftdi);
-		ftdi_response_cancel_work(ftdi);
-		ftdi_elan_abandon_completions(ftdi);
-		ftdi_elan_abandon_targets(ftdi);
-		if (ftdi->registered) {
-			platform_device_unregister(&ftdi->platform_dev);
-			ftdi->synchronized = 0;
-			ftdi->enumerated = 0;
-			ftdi->initialized = 0;
-			ftdi->registered = 0;
-		}
-		ftdi->disconnected += 1;
-		usb_set_intfdata(interface, NULL);
-		dev_info(&ftdi->udev->dev, "USB FTDI U132 host controller interface now disconnected\n");
-	}
-	ftdi_elan_put_kref(ftdi);
-}
-
-static struct usb_driver ftdi_elan_driver = {
-	.name = "ftdi-elan",
-	.probe = ftdi_elan_probe,
-	.disconnect = ftdi_elan_disconnect,
-	.id_table = ftdi_elan_table,
-};
-static int __init ftdi_elan_init(void)
-{
-	int result;
-	pr_info("driver %s\n", ftdi_elan_driver.name);
-	mutex_init(&ftdi_module_lock);
-	INIT_LIST_HEAD(&ftdi_static_list);
-	result = usb_register(&ftdi_elan_driver);
-	if (result) {
-		pr_err("usb_register failed. Error number %d\n", result);
-	}
-	return result;
-
-}
-
-static void __exit ftdi_elan_exit(void)
-{
-	struct usb_ftdi *ftdi;
-	struct usb_ftdi *temp;
-	usb_deregister(&ftdi_elan_driver);
-	pr_info("ftdi_u132 driver deregistered\n");
-	list_for_each_entry_safe(ftdi, temp, &ftdi_static_list, ftdi_list) {
-		ftdi_status_cancel_work(ftdi);
-		ftdi_command_cancel_work(ftdi);
-		ftdi_response_cancel_work(ftdi);
-	}
-}
-
-
-module_init(ftdi_elan_init);
-module_exit(ftdi_elan_exit);