usb-storage: make jumpshot a separate module

This patch (as1214) converts usb-storage's jumpshot 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

@@ -110,12 +110,14 @@ config USB_STORAGE_SDDR55
 	  If this driver is compiled as a module, it will be named ums-sddr55.
 
 config USB_STORAGE_JUMPSHOT
-	bool "Lexar Jumpshot Compact Flash Reader"
+	tristate "Lexar Jumpshot Compact Flash Reader"
 	depends on USB_STORAGE
 	help
 	  Say Y here to include additional code to support the Lexar Jumpshot
 	  USB CompactFlash reader.
 
+	  If this driver is compiled as a module, it will be named ums-jumpshot.
+
 config USB_STORAGE_ALAUDA
 	bool "Olympus MAUSB-10/Fuji DPC-R1 support"
 	depends on USB_STORAGE

drivers/usb/storage/Makefile

@@ -10,7 +10,6 @@ EXTRA_CFLAGS	:= -Idrivers/scsi
 obj-$(CONFIG_USB_STORAGE)	+= usb-storage.o
 
 usb-storage-obj-$(CONFIG_USB_STORAGE_DEBUG)	+= debug.o
-usb-storage-obj-$(CONFIG_USB_STORAGE_JUMPSHOT)	+= jumpshot.o
 usb-storage-obj-$(CONFIG_USB_STORAGE_ALAUDA)	+= alauda.o
 usb-storage-obj-$(CONFIG_USB_STORAGE_ONETOUCH)	+= onetouch.o
 usb-storage-obj-$(CONFIG_USB_STORAGE_KARMA)	+= karma.o
@@ -28,6 +27,7 @@ obj-$(CONFIG_USB_STORAGE_CYPRESS_ATACB) += ums-cypress.o
 obj-$(CONFIG_USB_STORAGE_DATAFAB)	+= ums-datafab.o
 obj-$(CONFIG_USB_STORAGE_FREECOM)	+= ums-freecom.o
 obj-$(CONFIG_USB_STORAGE_ISD200)	+= ums-isd200.o
+obj-$(CONFIG_USB_STORAGE_JUMPSHOT)	+= ums-jumpshot.o
 obj-$(CONFIG_USB_STORAGE_SDDR09)	+= ums-sddr09.o
 obj-$(CONFIG_USB_STORAGE_SDDR55)	+= ums-sddr55.o
 obj-$(CONFIG_USB_STORAGE_USBAT)		+= ums-usbat.o
@@ -36,6 +36,7 @@ ums-cypress-objs	:= cypress_atacb.o
 ums-datafab-objs	:= datafab.o
 ums-freecom-objs	:= freecom.o
 ums-isd200-objs		:= isd200.o
+ums-jumpshot-objs	:= jumpshot.o
 ums-sddr09-objs		:= sddr09.o
 ums-sddr55-objs		:= sddr55.o
 ums-usbat-objs		:= shuttle_usbat.o

drivers/usb/storage/jumpshot.c

@@ -46,6 +46,7 @@
   */
 
 #include <linux/errno.h>
+#include <linux/module.h>
 #include <linux/slab.h>
 
 #include <scsi/scsi.h>
@@ -55,9 +56,57 @@
 #include "transport.h"
 #include "protocol.h"
 #include "debug.h"
-#include "jumpshot.h"
 
 
+/*
+ * 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 jumpshot_usb_ids[] = {
+#	include "unusual_jumpshot.h"
+	{ }		/* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, jumpshot_usb_ids);
+
+#undef UNUSUAL_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 jumpshot_unusual_dev_list[] = {
+#	include "unusual_jumpshot.h"
+	{ }		/* Terminating entry */
+};
+
+#undef UNUSUAL_DEV
+
+
+struct jumpshot_info {
+   unsigned long   sectors;     /* total sector count */
+   unsigned long   ssize;       /* sector size in bytes */
+
+   /* the following aren't used yet */
+   unsigned char   sense_key;
+   unsigned long   sense_asc;   /* additional sense code */
+   unsigned long   sense_ascq;  /* additional sense code qualifier */
+};
+
 static inline int jumpshot_bulk_read(struct us_data *us,
 				     unsigned char *data, 
 				     unsigned int len)
@@ -429,7 +478,7 @@ static void jumpshot_info_destructor(void *extra)
 
 // Transport for the Lexar 'Jumpshot'
 //
-int jumpshot_transport(struct scsi_cmnd * srb, struct us_data *us)
+static int jumpshot_transport(struct scsi_cmnd *srb, struct us_data *us)
 {
 	struct jumpshot_info *info;
 	int rc;
@@ -592,3 +641,49 @@ int jumpshot_transport(struct scsi_cmnd * srb, struct us_data *us)
 	info->sense_ascq = 0x00;
 	return USB_STOR_TRANSPORT_FAILED;
 }
+
+static int jumpshot_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 - jumpshot_usb_ids) + jumpshot_unusual_dev_list);
+	if (result)
+		return result;
+
+	us->transport_name  = "Lexar Jumpshot Control/Bulk";
+	us->transport = jumpshot_transport;
+	us->transport_reset = usb_stor_Bulk_reset;
+	us->max_lun = 1;
+
+	result = usb_stor_probe2(us);
+	return result;
+}
+
+static struct usb_driver jumpshot_driver = {
+	.name =		"ums-jumpshot",
+	.probe =	jumpshot_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 =	jumpshot_usb_ids,
+	.soft_unbind =	1,
+};
+
+static int __init jumpshot_init(void)
+{
+	return usb_register(&jumpshot_driver);
+}
+
+static void __exit jumpshot_exit(void)
+{
+	usb_deregister(&jumpshot_driver);
+}
+
+module_init(jumpshot_init);
+module_exit(jumpshot_exit);

drivers/usb/storage/unusual_devs.h

@@ -794,14 +794,6 @@ UNUSUAL_DEV(  0x05c6, 0x1000, 0x0000, 0x9999,
 		US_SC_DEVICE, US_PR_DEVICE, option_ms_init,
 		0),
 
-#ifdef CONFIG_USB_STORAGE_JUMPSHOT
-UNUSUAL_DEV(  0x05dc, 0x0001, 0x0000, 0x0001,
-		"Lexar",
-		"Jumpshot USB CF Reader",
-		US_SC_SCSI, US_PR_JUMPSHOT, NULL,
-		US_FL_NEED_OVERRIDE ),
-#endif
-
 /* Reported by Blake Matheny <bmatheny@purdue.edu> */
 UNUSUAL_DEV(  0x05dc, 0xb002, 0x0000, 0x0113,
 		"Lexar",

drivers/usb/storage/jumpshot.h → drivers/usb/storage/unusual_jumpshot.h

-/* Driver for Lexar "Jumpshot" USB Compact Flash reader
- * Header File
- *
- * Current development and maintenance by:
- *   (c) 2000 Jimmie Mayfield (mayfield+usb@sackheads.org)
- *
- * See jumpshot.c for more explanation
+/* Unusual Devices File for the Lexar "Jumpshot" Compact Flash reader
  *
  * 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
@@ -21,19 +15,13 @@
  * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#ifndef _USB_JUMPSHOT_H
-#define _USB_JUMPSHOT_H
-
-extern int jumpshot_transport(struct scsi_cmnd *srb, struct us_data *us);
+#if defined(CONFIG_USB_STORAGE_JUMPSHOT) || \
+		defined(CONFIG_USB_STORAGE_JUMPSHOT_MODULE)
 
-struct jumpshot_info {
-   unsigned long   sectors;     // total sector count
-   unsigned long   ssize;       // sector size in bytes
- 
-   // the following aren't used yet
-   unsigned char   sense_key;
-   unsigned long   sense_asc;   // additional sense code
-   unsigned long   sense_ascq;  // additional sense code qualifier
-};
+UNUSUAL_DEV(  0x05dc, 0x0001, 0x0000, 0x0001,
+		"Lexar",
+		"Jumpshot USB CF Reader",
+		US_SC_SCSI, US_PR_JUMPSHOT, NULL,
+		US_FL_NEED_OVERRIDE),
 
-#endif
+#endif /* defined(CONFIG_USB_STORAGE_JUMPSHOT) || ... */

drivers/usb/storage/usb.c

@@ -66,9 +66,6 @@
 #include "debug.h"
 #include "initializers.h"
 
-#ifdef CONFIG_USB_STORAGE_JUMPSHOT
-#include "jumpshot.h"
-#endif
 #ifdef CONFIG_USB_STORAGE_ONETOUCH
 #include "onetouch.h"
 #endif
@@ -601,15 +598,6 @@ static void get_transport(struct us_data *us)
 		us->transport_reset = usb_stor_Bulk_reset;
 		break;
 
-#ifdef CONFIG_USB_STORAGE_JUMPSHOT
-	case US_PR_JUMPSHOT:
-		us->transport_name  = "Lexar Jumpshot Control/Bulk";
-		us->transport = jumpshot_transport;
-		us->transport_reset = usb_stor_Bulk_reset;
-		us->max_lun = 1;
-		break;
-#endif
-
 #ifdef CONFIG_USB_STORAGE_ALAUDA
 	case US_PR_ALAUDA:
 		us->transport_name  = "Alauda Control/Bulk";

drivers/usb/storage/usual-tables.c

@@ -81,6 +81,7 @@ static struct ignore_entry ignore_ids[] = {
 #	include "unusual_datafab.h"
 #	include "unusual_freecom.h"
 #	include "unusual_isd200.h"
+#	include "unusual_jumpshot.h"
 #	include "unusual_sddr09.h"
 #	include "unusual_sddr55.h"
 #	include "unusual_usbat.h"