usb-storage: make alauda a separate module

This patch (as1215) converts usb-storage's alauda subdriver into a
separate module.

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

1 files changed, 160 insertions, 3 deletions

diff --git a/drivers/usb/storage/alauda.c b/drivers/usb/storage/alauda.c
index 5407411e30e0..d3a88ebe690b 100644
--- a/drivers/usb/storage/alauda.c
+++ b/drivers/usb/storage/alauda.c
@@ -31,6 +31,8 @@
  * 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>
@@ -39,7 +41,75 @@
 #include "transport.h"
 #include "protocol.h"
 #include "debug.h"
-#include "alauda.h"
+
+/*
+ * Status bytes
+ */
+#define ALAUDA_STATUS_ERROR             0x01
+#define ALAUDA_STATUS_READY             0x40
+
+/*
+ * Control opcodes (for request field)
+ */
+#define ALAUDA_GET_XD_MEDIA_STATUS      0x08
+#define ALAUDA_GET_SM_MEDIA_STATUS      0x98
+#define ALAUDA_ACK_XD_MEDIA_CHANGE      0x0a
+#define ALAUDA_ACK_SM_MEDIA_CHANGE      0x9a
+#define ALAUDA_GET_XD_MEDIA_SIG         0x86
+#define ALAUDA_GET_SM_MEDIA_SIG         0x96
+
+/*
+ * Bulk command identity (byte 0)
+ */
+#define ALAUDA_BULK_CMD                 0x40
+
+/*
+ * Bulk opcodes (byte 1)
+ */
+#define ALAUDA_BULK_GET_REDU_DATA       0x85
+#define ALAUDA_BULK_READ_BLOCK          0x94
+#define ALAUDA_BULK_ERASE_BLOCK         0xa3
+#define ALAUDA_BULK_WRITE_BLOCK         0xb4
+#define ALAUDA_BULK_GET_STATUS2         0xb7
+#define ALAUDA_BULK_RESET_MEDIA         0xe0
+
+/*
+ * Port to operate on (byte 8)
+ */
+#define ALAUDA_PORT_XD                  0x00
+#define ALAUDA_PORT_SM                  0x01
+
+/*
+ * LBA and PBA are unsigned ints. Special values.
+ */
+#define UNDEF    0xffff
+#define SPARE    0xfffe
+#define UNUSABLE 0xfffd
+
+struct alauda_media_info {
+        unsigned long capacity;         /* total media size in bytes */
+        unsigned int pagesize;          /* page size in bytes */
+        unsigned int blocksize;         /* number of pages per block */
+        unsigned int uzonesize;         /* number of usable blocks per zone */
+        unsigned int zonesize;          /* number of blocks per zone */
+        unsigned int blockmask;         /* mask to get page from address */
+
+        unsigned char pageshift;
+        unsigned char blockshift;
+        unsigned char zoneshift;
+
+        u16 **lba_to_pba;               /* logical to physical block map */
+        u16 **pba_to_lba;               /* physical to logical block map */
+};
+
+struct alauda_info {
+        struct alauda_media_info port[2];
+        int wr_ep;                      /* endpoint to write data out of */
+
+        unsigned char sense_key;
+        unsigned long sense_asc;        /* additional sense code */
+        unsigned long sense_ascq;       /* additional sense code qualifier */
+};
 
 #define short_pack(lsb,msb) ( ((u16)(lsb)) | ( ((u16)(msb))<<8 ) )
 #define LSB_of(s) ((s)&0xFF)
@@ -52,6 +122,48 @@
 #define PBA_HI(pba) (pba >> 3)
 #define PBA_ZONE(pba) (pba >> 11)
 
+static int init_alauda(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 alauda_usb_ids[] = {
+#       include "unusual_alauda.h"
+        { }             /* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, alauda_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 alauda_unusual_dev_list[] = {
+#       include "unusual_alauda.h"
+        { }             /* Terminating entry */
+};
+
+#undef UNUSUAL_DEV
+
+
 /*
  * Media handling
  */
@@ -998,7 +1110,7 @@ static void alauda_info_destructor(void *extra)
 /*
  * Initialize alauda_info struct and find the data-write endpoint
  */
-int init_alauda(struct us_data *us)
+static int init_alauda(struct us_data *us)
 {
         struct alauda_info *info;
         struct usb_host_interface *altsetting = us->pusb_intf->cur_altsetting;
@@ -1020,7 +1132,7 @@ int init_alauda(struct us_data *us)
         return USB_STOR_TRANSPORT_GOOD;
 }
 
-int alauda_transport(struct scsi_cmnd *srb, struct us_data *us)
+static int alauda_transport(struct scsi_cmnd *srb, struct us_data *us)
 {
         int rc;
         struct alauda_info *info = (struct alauda_info *) us->extra;
@@ -1128,3 +1240,48 @@ int alauda_transport(struct scsi_cmnd *srb, struct us_data *us)
         return USB_STOR_TRANSPORT_FAILED;
 }
 
+static int alauda_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 - alauda_usb_ids) + alauda_unusual_dev_list);
+        if (result)
+                return result;
+
+        us->transport_name  = "Alauda Control/Bulk";
+        us->transport = alauda_transport;
+        us->transport_reset = usb_stor_Bulk_reset;
+        us->max_lun = 1;
+
+        result = usb_stor_probe2(us);
+        return result;
+}
+
+static struct usb_driver alauda_driver = {
+        .name =         "ums-alauda",
+        .probe =        alauda_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 =     alauda_usb_ids,
+        .soft_unbind =  1,
+};
+
+static int __init alauda_init(void)
+{
+        return usb_register(&alauda_driver);
+}
+
+static void __exit alauda_exit(void)
+{
+        usb_deregister(&alauda_driver);
+}
+
+module_init(alauda_init);
+module_exit(alauda_exit);