usb-storage: make isd200 a separate module

This patch (as1208) converts usb-storage's isd200 subdriver into a
separate module.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/storage/Kconfig

@@ -46,7 +46,7 @@ config USB_STORAGE_FREECOM
 	  Freecom has a web page at <http://www.freecom.de/>.
 
 config USB_STORAGE_ISD200
-	bool "ISD-200 USB/ATA Bridge support"
+	tristate "ISD-200 USB/ATA Bridge support"
 	depends on USB_STORAGE
 	---help---
 	  Say Y here if you want to use USB Mass Store devices based
@@ -61,6 +61,8 @@ config USB_STORAGE_ISD200
 	  - CyQ've CQ8060A CDRW drive
 	  - Planex eXtreme Drive RX-25HU USB-IDE cable (not model RX-25U)
 
+	  If this driver is compiled as a module, it will be named ums-isd200.
+
 config USB_STORAGE_USBAT
 	bool "USBAT/USBAT02-based storage support"
 	depends on USB_STORAGE

drivers/usb/storage/Makefile

@@ -13,7 +13,6 @@ usb-storage-obj-$(CONFIG_USB_STORAGE_DEBUG)	+= debug.o
 usb-storage-obj-$(CONFIG_USB_STORAGE_USBAT)	+= shuttle_usbat.o
 usb-storage-obj-$(CONFIG_USB_STORAGE_SDDR55)	+= sddr55.o
 usb-storage-obj-$(CONFIG_USB_STORAGE_FREECOM)	+= freecom.o
-usb-storage-obj-$(CONFIG_USB_STORAGE_ISD200)	+= isd200.o
 usb-storage-obj-$(CONFIG_USB_STORAGE_DATAFAB)	+= datafab.o
 usb-storage-obj-$(CONFIG_USB_STORAGE_JUMPSHOT)	+= jumpshot.o
 usb-storage-obj-$(CONFIG_USB_STORAGE_ALAUDA)	+= alauda.o
@@ -30,6 +29,8 @@ else
 	obj-$(CONFIG_USB)	+= libusual.o usual-tables.o
 endif
 
+obj-$(CONFIG_USB_STORAGE_ISD200)	+= ums-isd200.o
 obj-$(CONFIG_USB_STORAGE_SDDR09)	+= ums-sddr09.o
 
+ums-isd200-objs		:= isd200.o
 ums-sddr09-objs		:= sddr09.o

drivers/usb/storage/isd200.c

@@ -44,6 +44,7 @@
 
 #include <linux/jiffies.h>
 #include <linux/errno.h>
+#include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/hdreg.h>
 #include <linux/scatterlist.h>
@@ -57,7 +58,50 @@
 #include "protocol.h"
 #include "debug.h"
 #include "scsiglue.h"
-#include "isd200.h"
+
+
+static int isd200_Initialization(struct us_data *us);
+
+
+/*
+ * The table of devices
+ */
+#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
+		    vendorName, productName, useProtocol, useTransport, \
+		    initFunction, flags) \
+{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
+  .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
+
+struct usb_device_id isd200_usb_ids[] = {
+#	include "unusual_isd200.h"
+	{ }		/* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, isd200_usb_ids);
+
+#undef UNUSUAL_DEV
+#undef USUAL_DEV
+
+/*
+ * The flags table
+ */
+#define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
+		    vendor_name, product_name, use_protocol, use_transport, \
+		    init_function, Flags) \
+{ \
+	.vendorName = vendor_name,	\
+	.productName = product_name,	\
+	.useProtocol = use_protocol,	\
+	.useTransport = use_transport,	\
+	.initFunction = init_function,	\
+}
+
+static struct us_unusual_dev isd200_unusual_dev_list[] = {
+#	include "unusual_isd200.h"
+	{ }		/* Terminating entry */
+};
+
+#undef UNUSUAL_DEV
+#undef USUAL_DEV
 
 
 /* Timeout defines (in Seconds) */
@@ -1518,7 +1562,7 @@ static int isd200_init_info(struct us_data *us)
  * Initialization for the ISD200 
  */
 
-int isd200_Initialization(struct us_data *us)
+static int isd200_Initialization(struct us_data *us)
 {
 	US_DEBUGP("ISD200 Initialization...\n");
 
@@ -1549,7 +1593,7 @@ int isd200_Initialization(struct us_data *us)
  *
  */
 
-void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us)
+static void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us)
 {
 	int sendToTransport = 1, orig_bufflen;
 	union ata_cdb ataCdb;
@@ -1570,3 +1614,47 @@ void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us)
 
 	isd200_srb_set_bufflen(srb, orig_bufflen);
 }
+
+static int isd200_probe(struct usb_interface *intf,
+			 const struct usb_device_id *id)
+{
+	struct us_data *us;
+	int result;
+
+	result = usb_stor_probe1(&us, intf, id,
+			(id - isd200_usb_ids) + isd200_unusual_dev_list);
+	if (result)
+		return result;
+
+	us->protocol_name = "ISD200 ATA/ATAPI";
+	us->proto_handler = isd200_ata_command;
+
+	result = usb_stor_probe2(us);
+	return result;
+}
+
+static struct usb_driver isd200_driver = {
+	.name =		"ums-isd200",
+	.probe =	isd200_probe,
+	.disconnect =	usb_stor_disconnect,
+	.suspend =	usb_stor_suspend,
+	.resume =	usb_stor_resume,
+	.reset_resume =	usb_stor_reset_resume,
+	.pre_reset =	usb_stor_pre_reset,
+	.post_reset =	usb_stor_post_reset,
+	.id_table =	isd200_usb_ids,
+	.soft_unbind =	1,
+};
+
+static int __init isd200_init(void)
+{
+	return usb_register(&isd200_driver);
+}
+
+static void __exit isd200_exit(void)
+{
+	usb_deregister(&isd200_driver);
+}
+
+module_init(isd200_init);
+module_exit(isd200_exit);

drivers/usb/storage/unusual_devs.h

@@ -632,14 +632,6 @@ UNUSUAL_DEV(  0x054c, 0x0025, 0x0100, 0x0100,
 		US_SC_DEVICE, US_PR_DEVICE, NULL,
 		US_FL_SINGLE_LUN ),
 
-#ifdef CONFIG_USB_STORAGE_ISD200
-UNUSUAL_DEV(  0x054c, 0x002b, 0x0100, 0x0110,
-		"Sony",
-		"Portable USB Harddrive V2",
-		US_SC_ISD200, US_PR_BULK, isd200_Initialization,
-		0 ),
-#endif
-
 /* Submitted by Olaf Hering, <olh@suse.de> SuSE Bugzilla #49049 */
 UNUSUAL_DEV(  0x054c, 0x002c, 0x0501, 0x2000,
 		"Sony",
@@ -785,32 +777,6 @@ UNUSUAL_DEV(  0x05ab, 0x0060, 0x1104, 0x1110,
 		US_SC_SCSI, US_PR_BULK, NULL,
 		US_FL_NEED_OVERRIDE ),
 
-#ifdef CONFIG_USB_STORAGE_ISD200
-UNUSUAL_DEV(  0x05ab, 0x0031, 0x0100, 0x0110,
-		"In-System",
-		"USB/IDE Bridge (ATA/ATAPI)",
-		US_SC_ISD200, US_PR_BULK, isd200_Initialization,
-		0 ),
-
-UNUSUAL_DEV(  0x05ab, 0x0301, 0x0100, 0x0110,
-		"In-System",
-		"Portable USB Harddrive V2",
-		US_SC_ISD200, US_PR_BULK, isd200_Initialization,
-		0 ),
-
-UNUSUAL_DEV(  0x05ab, 0x0351, 0x0100, 0x0110,
-		"In-System",
-		"Portable USB Harddrive V2",
-		US_SC_ISD200, US_PR_BULK, isd200_Initialization,
-		0 ),
-
-UNUSUAL_DEV(  0x05ab, 0x5701, 0x0100, 0x0110,
-		"In-System",
-		"USB Storage Adapter V2",
-		US_SC_ISD200, US_PR_BULK, isd200_Initialization,
-		0 ),
-#endif
-
 /* Submitted by Sven Anderson <sven-linux@anderson.de>
  * There are at least four ProductIDs used for iPods, so I added 0x1202 and
  * 0x1204. They just need the US_FL_FIX_CAPACITY. As the bcdDevice appears
@@ -1375,14 +1341,6 @@ UNUSUAL_DEV( 0x0bc2, 0x3010, 0x0000, 0x0000,
 		US_SC_DEVICE, US_PR_DEVICE, NULL,
 		US_FL_SANE_SENSE ),
 
-#ifdef CONFIG_USB_STORAGE_ISD200
-UNUSUAL_DEV(  0x0bf6, 0xa001, 0x0100, 0x0110,
-		"ATI",
-		"USB Cable 205",
-		US_SC_ISD200, US_PR_BULK, isd200_Initialization,
-		0 ),
-#endif
-
 #ifdef CONFIG_USB_STORAGE_DATAFAB
 UNUSUAL_DEV( 0x0c0b, 0xa109, 0x0000, 0xffff,
 		"Acomdata",

drivers/usb/storage/isd200.h → drivers/usb/storage/unusual_isd200.h

-/* Header File for In-System Design, Inc. ISD200 ASIC
- *
- * First release
- *
- * Current development and maintenance by:
- *   (c) 2000 In-System Design, Inc. (support@in-system.com)
- *
- * See isd200.c for more information.
+/* Unusual Devices File for In-System Design, Inc. ISD200 ASIC
  *
  * 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
@@ -22,10 +15,43 @@
  * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#ifndef _USB_ISD200_H
-#define _USB_ISD200_H
+#if defined(CONFIG_USB_STORAGE_ISD200) || \
+		defined(CONFIG_USB_STORAGE_ISD200_MODULE)
+
+UNUSUAL_DEV(  0x054c, 0x002b, 0x0100, 0x0110,
+		"Sony",
+		"Portable USB Harddrive V2",
+		US_SC_ISD200, US_PR_BULK, isd200_Initialization,
+		0),
+
+UNUSUAL_DEV(  0x05ab, 0x0031, 0x0100, 0x0110,
+		"In-System",
+		"USB/IDE Bridge (ATA/ATAPI)",
+		US_SC_ISD200, US_PR_BULK, isd200_Initialization,
+		0),
+
+UNUSUAL_DEV(  0x05ab, 0x0301, 0x0100, 0x0110,
+		"In-System",
+		"Portable USB Harddrive V2",
+		US_SC_ISD200, US_PR_BULK, isd200_Initialization,
+		0),
+
+UNUSUAL_DEV(  0x05ab, 0x0351, 0x0100, 0x0110,
+		"In-System",
+		"Portable USB Harddrive V2",
+		US_SC_ISD200, US_PR_BULK, isd200_Initialization,
+		0),
+
+UNUSUAL_DEV(  0x05ab, 0x5701, 0x0100, 0x0110,
+		"In-System",
+		"USB Storage Adapter V2",
+		US_SC_ISD200, US_PR_BULK, isd200_Initialization,
+		0),
 
-extern void isd200_ata_command(struct scsi_cmnd *srb, struct us_data *us);
-extern int isd200_Initialization(struct us_data *us);
+UNUSUAL_DEV(  0x0bf6, 0xa001, 0x0100, 0x0110,
+		"ATI",
+		"USB Cable 205",
+		US_SC_ISD200, US_PR_BULK, isd200_Initialization,
+		0),
 
-#endif
+#endif /* defined(CONFIG_USB_STORAGE_ISD200) || ... */

drivers/usb/storage/usb.c

@@ -75,9 +75,6 @@
 #ifdef CONFIG_USB_STORAGE_FREECOM
 #include "freecom.h"
 #endif
-#ifdef CONFIG_USB_STORAGE_ISD200
-#include "isd200.h"
-#endif
 #ifdef CONFIG_USB_STORAGE_DATAFAB
 #include "datafab.h"
 #endif
@@ -721,13 +718,6 @@ static void get_protocol(struct us_data *us)
 		us->proto_handler = usb_stor_ufi_command;
 		break;
 
-#ifdef CONFIG_USB_STORAGE_ISD200
-	case US_SC_ISD200:
-		us->protocol_name = "ISD200 ATA/ATAPI";
-		us->proto_handler = isd200_ata_command;
-		break;
-#endif
-
 #ifdef CONFIG_USB_STORAGE_CYPRESS_ATACB
 	case US_SC_CYP_ATACB:
 		us->protocol_name = "Transparent SCSI with Cypress ATACB";

drivers/usb/storage/usual-tables.c

@@ -77,6 +77,7 @@ struct ignore_entry {
 }
 
 static struct ignore_entry ignore_ids[] = {
+#	include "unusual_isd200.h"
 #	include "unusual_sddr09.h"
 	{ }		/* Terminating entry */
 };