[PATCH] USB serial: move the ezusb functions into their own file.

drivers/usb/serial/Kconfig

@@ -400,5 +400,10 @@ config USB_SERIAL_OMNINET
 	  The module will be called omninet.o. If you want to compile it as a
 	  module, say M here and read <file:Documentation/modules.txt>.
 
+config USB_EZUSB
+	bool
+	depends on USB_SERIAL_KEYSPAN_PDA || USB_SERIAL_XIRCOM || USB_SERIAL_KEYSPAN || USB_SERIAL_WHITEHEAT
+	default y
+
 endmenu
 

drivers/usb/serial/Makefile

@@ -7,6 +7,7 @@
 obj-$(CONFIG_USB_SERIAL)			+= usbserial.o
 
 usbserial-obj-$(CONFIG_USB_SERIAL_CONSOLE)	+= console.o
+usbserial-obj-$(CONFIG_USB_EZUSB)		+= ezusb.o
 
 obj-$(CONFIG_USB_SERIAL_VISOR)			+= visor.o
 obj-$(CONFIG_USB_SERIAL_IPAQ)			+= ipaq.o
@@ -29,7 +30,7 @@ obj-$(CONFIG_USB_SERIAL_KLSI)			+= kl5kusb105.o
 obj-$(CONFIG_USB_SERIAL_SAFE)			+= safe_serial.o
 
 # Objects that export symbols.
-export-objs	:= usb-serial.o
+export-objs	:= usb-serial.o ezusb.o
 
 usbserial-objs	:= usb-serial.o $(usbserial-obj-y)
 

drivers/usb/serial/ezusb.c

+/*
+ * EZ-USB specific functions used by some of the USB to Serial drivers.
+ *
+ * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com)
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License version
+ *	2 as published by the Free Software Foundation.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+
+#ifdef CONFIG_USB_SERIAL_DEBUG
+	static int debug = 1;
+#else
+	static int debug;
+#endif
+
+#include "usb-serial.h"
+
+/* EZ-USB Control and Status Register.  Bit 0 controls 8051 reset */
+#define CPUCS_REG    0x7F92
+
+int ezusb_writememory (struct usb_serial *serial, int address, unsigned char *data, int length, __u8 bRequest)
+{
+	int result;
+	unsigned char *transfer_buffer;
+
+	/* dbg("ezusb_writememory %x, %d", address, length); */
+	if (!serial->dev) {
+		dbg("%s - no physical device present, failing.", __FUNCTION__);
+		return -ENODEV;
+	}
+
+	transfer_buffer =  kmalloc (length, GFP_KERNEL);
+	if (!transfer_buffer) {
+		err("%s - kmalloc(%d) failed.", __FUNCTION__, length);
+		return -ENOMEM;
+	}
+	memcpy (transfer_buffer, data, length);
+	result = usb_control_msg (serial->dev, usb_sndctrlpipe(serial->dev, 0), bRequest, 0x40, address, 0, transfer_buffer, length, 3*HZ);
+	kfree (transfer_buffer);
+	return result;
+}
+
+int ezusb_set_reset (struct usb_serial *serial, unsigned char reset_bit)
+{
+	int	response;
+	dbg("%s - %d", __FUNCTION__, reset_bit);
+	response = ezusb_writememory (serial, CPUCS_REG, &reset_bit, 1, 0xa0);
+	if (response < 0) {
+		err("%s- %d failed", __FUNCTION__, reset_bit);
+	}
+	return response;
+}
+
+
+EXPORT_SYMBOL(ezusb_writememory);
+EXPORT_SYMBOL(ezusb_set_reset);
+

drivers/usb/serial/usb-serial.c

@@ -488,45 +488,6 @@ static void return_serial (struct usb_serial *serial)
 	return;
 }
 
-#ifdef USES_EZUSB_FUNCTIONS
-/* EZ-USB Control and Status Register.  Bit 0 controls 8051 reset */
-#define CPUCS_REG    0x7F92
-
-int ezusb_writememory (struct usb_serial *serial, int address, unsigned char *data, int length, __u8 bRequest)
-{
-	int result;
-	unsigned char *transfer_buffer;
-
-	/* dbg("ezusb_writememory %x, %d", address, length); */
-	if (!serial->dev) {
-		dbg("%s - no physical device present, failing.", __FUNCTION__);
-		return -ENODEV;
-	}
-
-	transfer_buffer =  kmalloc (length, GFP_KERNEL);
-	if (!transfer_buffer) {
-		err("%s - kmalloc(%d) failed.", __FUNCTION__, length);
-		return -ENOMEM;
-	}
-	memcpy (transfer_buffer, data, length);
-	result = usb_control_msg (serial->dev, usb_sndctrlpipe(serial->dev, 0), bRequest, 0x40, address, 0, transfer_buffer, length, 3*HZ);
-	kfree (transfer_buffer);
-	return result;
-}
-
-int ezusb_set_reset (struct usb_serial *serial, unsigned char reset_bit)
-{
-	int	response;
-	dbg("%s - %d", __FUNCTION__, reset_bit);
-	response = ezusb_writememory (serial, CPUCS_REG, &reset_bit, 1, 0xa0);
-	if (response < 0) {
-		err("%s- %d failed", __FUNCTION__, reset_bit);
-	}
-	return response;
-}
-
-#endif	/* USES_EZUSB_FUNCTIONS */
-
 /*****************************************************************************
  * Driver tty interface functions
  *****************************************************************************/
@@ -1699,12 +1660,6 @@ EXPORT_SYMBOL(usb_serial_deregister);
 EXPORT_SYMBOL(usb_serial_probe);
 EXPORT_SYMBOL(usb_serial_disconnect);
 EXPORT_SYMBOL(usb_serial_port_softint);
-#ifdef USES_EZUSB_FUNCTIONS
-	EXPORT_SYMBOL(ezusb_writememory);
-	EXPORT_SYMBOL(ezusb_set_reset);
-#endif
-
-
 
 
 /* Module information */

drivers/usb/serial/usb-serial.h

@@ -237,24 +237,8 @@ extern void usb_serial_port_softint(void *private);
 extern int usb_serial_probe(struct usb_interface *iface, const struct usb_device_id *id);
 extern void usb_serial_disconnect(struct usb_interface *iface);
 
-/* determine if we should include the EzUSB loader functions */
-#undef USES_EZUSB_FUNCTIONS
-#if defined(CONFIG_USB_SERIAL_KEYSPAN_PDA) || defined(CONFIG_USB_SERIAL_KEYSPAN_PDA_MODULE)
-	#define USES_EZUSB_FUNCTIONS
-#endif
-#if defined(CONFIG_USB_SERIAL_XIRCOM) || defined(CONFIG_USB_SERIAL_XIRCOM_MODULE)
-	#define USES_EZUSB_FUNCTIONS
-#endif
-#if defined(CONFIG_USB_SERIAL_KEYSPAN) || defined(CONFIG_USB_SERIAL_KEYSPAN_MODULE)
-	#define USES_EZUSB_FUNCTIONS
-#endif
-#if defined(CONFIG_USB_SERIAL_WHITEHEAT) || defined(CONFIG_USB_SERIAL_WHITEHEAT_MODULE)
-	#define USES_EZUSB_FUNCTIONS
-#endif
-#ifdef USES_EZUSB_FUNCTIONS
 extern int ezusb_writememory (struct usb_serial *serial, int address, unsigned char *data, int length, __u8 bRequest);
 extern int ezusb_set_reset (struct usb_serial *serial, unsigned char reset_bit);
-#endif
 
 /* USB Serial console functions */
 #ifdef CONFIG_USB_SERIAL_CONSOLE