usb-storage: make karma a separate module

This patch (as1216) converts usb-storage's karma subdriver into a
separate module.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

8 files changed, 123 insertions, 33 deletions

diff --git a/drivers/usb/storage/Kconfig b/drivers/usb/storage/Kconfig
index c56c2c6..8adece1 100644
--- a/drivers/usb/storage/Kconfig
+++ b/drivers/usb/storage/Kconfig
@@ -144,7 +144,7 @@ config USB_STORAGE_ONETOUCH
 	  cuts)
 
 config USB_STORAGE_KARMA
-	bool "Support for Rio Karma music player"
+	tristate "Support for Rio Karma music player"
 	depends on USB_STORAGE
 	help
 	  Say Y here to include additional code to support the Rio Karma
@@ -155,6 +155,8 @@ config USB_STORAGE_KARMA
 	  on the resulting scsi device node returns the Karma to normal
 	  operation.
 
+	  If this driver is compiled as a module, it will be named ums-karma.
+
 config USB_STORAGE_CYPRESS_ATACB
 	tristate "SAT emulation on Cypress USB/ATA Bridge with ATACB"
 	depends on USB_STORAGE
diff --git a/drivers/usb/storage/Makefile b/drivers/usb/storage/Makefile
index fea05c0..870680e 100644
--- a/drivers/usb/storage/Makefile
+++ b/drivers/usb/storage/Makefile
@@ -11,7 +11,6 @@ obj-$(CONFIG_USB_STORAGE)	+= usb-storage.o
 
 usb-storage-obj-$(CONFIG_USB_STORAGE_DEBUG)	+= debug.o
 usb-storage-obj-$(CONFIG_USB_STORAGE_ONETOUCH)	+= onetouch.o
-usb-storage-obj-$(CONFIG_USB_STORAGE_KARMA)	+= karma.o
 
 usb-storage-objs :=	scsiglue.o protocol.o transport.o usb.o \
 			initializers.o sierra_ms.o option_ms.o $(usb-storage-obj-y)
@@ -28,6 +27,7 @@ obj-$(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_KARMA)		+= ums-karma.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
@@ -38,6 +38,7 @@ ums-datafab-objs	:= datafab.o
 ums-freecom-objs	:= freecom.o
 ums-isd200-objs		:= isd200.o
 ums-jumpshot-objs	:= jumpshot.o
+ums-karma-objs		:= karma.o
 ums-sddr09-objs		:= sddr09.o
 ums-sddr55-objs		:= sddr55.o
 ums-usbat-objs		:= shuttle_usbat.o
diff --git a/drivers/usb/storage/karma.c b/drivers/usb/storage/karma.c
index 0d79ae5..cfb8e60 100644
--- a/drivers/usb/storage/karma.c
+++ b/drivers/usb/storage/karma.c
@@ -18,6 +18,8 @@
  * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <linux/module.h>
+
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_device.h>
@@ -25,7 +27,6 @@
 #include "usb.h"
 #include "transport.h"
 #include "debug.h"
-#include "karma.h"
 
 #define RIO_PREFIX "RIOP\x00"
 #define RIO_PREFIX_LEN 5
@@ -36,13 +37,53 @@
 #define RIO_LEAVE_STORAGE 0x2
 #define RIO_RESET 0xC
 
-extern int usb_stor_Bulk_transport(struct scsi_cmnd *, struct us_data *);
-
 struct karma_data {
 	int in_storage;
 	char *recv;
 };
 
+static int rio_karma_init(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 karma_usb_ids[] = {
+#	include "unusual_karma.h"
+	{ }		/* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, karma_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 karma_unusual_dev_list[] = {
+#	include "unusual_karma.h"
+	{ }		/* Terminating entry */
+};
+
+#undef UNUSUAL_DEV
+
+
 /*
  * Send commands to Rio Karma.
  *
@@ -104,7 +145,7 @@ err:
  * Trap START_STOP and READ_10 to leave/re-enter storage mode.
  * Everything else is propagated to the normal bulk layer.
  */
-int rio_karma_transport(struct scsi_cmnd *srb, struct us_data *us)
+static int rio_karma_transport(struct scsi_cmnd *srb, struct us_data *us)
 {
 	int ret;
 	struct karma_data *data = (struct karma_data *) us->extra;
@@ -133,7 +174,7 @@ static void rio_karma_destructor(void *extra)
 	kfree(data->recv);
 }
 
-int rio_karma_init(struct us_data *us)
+static int rio_karma_init(struct us_data *us)
 {
 	int ret = 0;
 	struct karma_data *data = kzalloc(sizeof(struct karma_data), GFP_NOIO);
@@ -153,3 +194,48 @@ int rio_karma_init(struct us_data *us)
 out:
 	return ret;
 }
+
+static int karma_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 - karma_usb_ids) + karma_unusual_dev_list);
+	if (result)
+		return result;
+
+	us->transport_name = "Rio Karma/Bulk";
+	us->transport = rio_karma_transport;
+	us->transport_reset = usb_stor_Bulk_reset;
+
+	result = usb_stor_probe2(us);
+	return result;
+}
+
+static struct usb_driver karma_driver = {
+	.name =		"ums-karma",
+	.probe =	karma_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 =	karma_usb_ids,
+	.soft_unbind =	1,
+};
+
+static int __init karma_init(void)
+{
+	return usb_register(&karma_driver);
+}
+
+static void __exit karma_exit(void)
+{
+	usb_deregister(&karma_driver);
+}
+
+module_init(karma_init);
+module_exit(karma_exit);
diff --git a/drivers/usb/storage/karma.h b/drivers/usb/storage/karma.h
deleted file mode 100644
index 8a60972..0000000
--- a/drivers/usb/storage/karma.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _KARMA_USB_H
-#define _KARMA_USB_H
-
-extern int rio_karma_init(struct us_data *us);
-extern int rio_karma_transport(struct scsi_cmnd *srb, struct us_data *us);
-
-#endif
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index bcdb74d..83e34a6 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -276,13 +276,6 @@ UNUSUAL_DEV(  0x0457, 0x0151, 0x0100, 0x0100,
 		US_SC_DEVICE, US_PR_DEVICE, NULL,
 		US_FL_NOT_LOCKABLE ),
 
-#ifdef CONFIG_USB_STORAGE_KARMA
-UNUSUAL_DEV(  0x045a, 0x5210, 0x0101, 0x0101,
-		"Rio",
-		"Rio Karma",
-		US_SC_SCSI, US_PR_KARMA, rio_karma_init, 0),
-#endif
-
 /* Reported by Tamas Kerecsen <kerecsen@bigfoot.com>
  * Obviously the PROM has not been customized by the VAR;
  * the Vendor and Product string descriptors are:
diff --git a/drivers/usb/storage/unusual_karma.h b/drivers/usb/storage/unusual_karma.h
new file mode 100644
index 0000000..12ae3a0
--- /dev/null
+++ b/drivers/usb/storage/unusual_karma.h
@@ -0,0 +1,26 @@
+/* Unusual Devices File for the Rio Karma
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#if defined(CONFIG_USB_STORAGE_KARMA) || \
+		defined(CONFIG_USB_STORAGE_KARMA_MODULE)
+
+UNUSUAL_DEV(  0x045a, 0x5210, 0x0101, 0x0101,
+		"Rio",
+		"Rio Karma",
+		US_SC_SCSI, US_PR_KARMA, rio_karma_init, 0),
+
+#endif /* defined(CONFIG_USB_STORAGE_KARMA) || ... */
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index cd039c0..c5abf9b 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -69,9 +69,6 @@
 #ifdef CONFIG_USB_STORAGE_ONETOUCH
 #include "onetouch.h"
 #endif
-#ifdef CONFIG_USB_STORAGE_KARMA
-#include "karma.h"
-#endif
 #include "sierra_ms.h"
 #include "option_ms.h"
 
@@ -594,15 +591,6 @@ static void get_transport(struct us_data *us)
 		us->transport = usb_stor_Bulk_transport;
 		us->transport_reset = usb_stor_Bulk_reset;
 		break;
-
-#ifdef CONFIG_USB_STORAGE_KARMA
-	case US_PR_KARMA:
-		us->transport_name = "Rio Karma/Bulk";
-		us->transport = rio_karma_transport;
-		us->transport_reset = usb_stor_Bulk_reset;
-		break;
-#endif
-
 	}
 }
 
diff --git a/drivers/usb/storage/usual-tables.c b/drivers/usb/storage/usual-tables.c
index ad102e8..bce086f 100644
--- a/drivers/usb/storage/usual-tables.c
+++ b/drivers/usb/storage/usual-tables.c
@@ -83,6 +83,7 @@ static struct ignore_entry ignore_ids[] = {
 #	include "unusual_freecom.h"
 #	include "unusual_isd200.h"
 #	include "unusual_jumpshot.h"
+#	include "unusual_karma.h"
 #	include "unusual_sddr09.h"
 #	include "unusual_sddr55.h"
 #	include "unusual_usbat.h"