Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 204 insertions, 0 deletions

diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
new file mode 100644
index 000000000000..625b7aa98074
--- /dev/null
+++ b/drivers/usb/storage/usb.h
@@ -0,0 +1,204 @@
+/* Driver for USB Mass Storage compliant devices
+ * Main Header File
+ *
+ * $Id: usb.h,v 1.21 2002/04/21 02:57:59 mdharm Exp $
+ *
+ * Current development and maintenance by:
+ *   (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
+ *
+ * Initial work by:
+ *   (c) 1999 Michael Gee (michael@linuxspecific.com)
+ *
+ * This driver is based on the 'USB Mass Storage Class' document. This
+ * describes in detail the protocol used to communicate with such
+ * devices.  Clearly, the designers had SCSI and ATAPI commands in
+ * mind when they created this document.  The commands are all very
+ * similar to commands in the SCSI-II and ATAPI specifications.
+ *
+ * It is important to note that in a number of cases this class
+ * exhibits class-specific exemptions from the USB specification.
+ * Notably the usage of NAK, STALL and ACK differs from the norm, in
+ * that they are used to communicate wait, failed and OK on commands.
+ *
+ * Also, for certain devices, the interrupt endpoint is used to convey
+ * status of a command.
+ *
+ * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
+ * information about this driver.
+ *
+ * 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.
+ */
+
+#ifndef _USB_H_
+#define _USB_H_
+
+#include <linux/usb.h>
+#include <linux/blkdev.h>
+#include <linux/smp_lock.h>
+#include <linux/completion.h>
+#include <scsi/scsi_host.h>
+
+struct us_data;
+struct scsi_cmnd;
+
+/*
+ * Unusual device list definitions 
+ */
+
+struct us_unusual_dev {
+        const char* vendorName;
+        const char* productName;
+        __u8  useProtocol;
+        __u8  useTransport;
+        int (*initFunction)(struct us_data *);
+        unsigned int flags;
+};
+
+/*
+ * Static flag definitions.  We use this roundabout technique so that the
+ * proc_info() routine can automatically display a message for each flag.
+ */
+#define US_DO_ALL_FLAGS                                         \
+        US_FLAG(SINGLE_LUN,     0x00000001)                     \
+                /* allow access to only LUN 0 */                \
+        US_FLAG(NEED_OVERRIDE,  0x00000002)                     \
+                /* unusual_devs entry is necessary */           \
+        US_FLAG(SCM_MULT_TARG,  0x00000004)                     \
+                /* supports multiple targets */                 \
+        US_FLAG(FIX_INQUIRY,    0x00000008)                     \
+                /* INQUIRY response needs faking */             \
+        US_FLAG(FIX_CAPACITY,   0x00000010)                     \
+                /* READ CAPACITY response too big */            \
+        US_FLAG(IGNORE_RESIDUE, 0x00000020)                     \
+                /* reported residue is wrong */                 \
+        US_FLAG(BULK32,         0x00000040)                     \
+                /* Uses 32-byte CBW length */                   \
+        US_FLAG(NOT_LOCKABLE,   0x00000080)                     \
+                /* PREVENT/ALLOW not supported */               \
+        US_FLAG(GO_SLOW,        0x00000100)                     \
+                /* Need delay after Command phase */            \
+        US_FLAG(NO_WP_DETECT,   0x00000200)                     \
+                /* Don't check for write-protect */             \
+
+#define US_FLAG(name, value)    US_FL_##name = value ,
+enum { US_DO_ALL_FLAGS };
+#undef US_FLAG
+
+/* Dynamic flag definitions: used in set_bit() etc. */
+#define US_FLIDX_URB_ACTIVE     18  /* 0x00040000  current_urb is in use  */
+#define US_FLIDX_SG_ACTIVE      19  /* 0x00080000  current_sg is in use   */
+#define US_FLIDX_ABORTING       20  /* 0x00100000  abort is in progress   */
+#define US_FLIDX_DISCONNECTING  21  /* 0x00200000  disconnect in progress */
+#define ABORTING_OR_DISCONNECTING       ((1UL << US_FLIDX_ABORTING) | \
+                                         (1UL << US_FLIDX_DISCONNECTING))
+#define US_FLIDX_RESETTING      22  /* 0x00400000  device reset in progress */
+#define US_FLIDX_TIMED_OUT      23  /* 0x00800000  SCSI midlayer timed out  */
+
+
+#define USB_STOR_STRING_LEN 32
+
+/*
+ * We provide a DMA-mapped I/O buffer for use with small USB transfers.
+ * It turns out that CB[I] needs a 12-byte buffer and Bulk-only needs a
+ * 31-byte buffer.  But Freecom needs a 64-byte buffer, so that's the
+ * size we'll allocate.
+ */
+
+#define US_IOBUF_SIZE           64      /* Size of the DMA-mapped I/O buffer */
+
+typedef int (*trans_cmnd)(struct scsi_cmnd *, struct us_data*);
+typedef int (*trans_reset)(struct us_data*);
+typedef void (*proto_cmnd)(struct scsi_cmnd*, struct us_data*);
+typedef void (*extra_data_destructor)(void *);   /* extra data destructor   */
+
+/* we allocate one of these for every device that we remember */
+struct us_data {
+        /* The device we're working with
+         * It's important to note:
+         *    (o) you must hold dev_semaphore to change pusb_dev
+         */
+        struct semaphore        dev_semaphore;   /* protect pusb_dev */
+        struct usb_device       *pusb_dev;       /* this usb_device */
+        struct usb_interface    *pusb_intf;      /* this interface */
+        struct us_unusual_dev   *unusual_dev;    /* device-filter entry     */
+        unsigned long           flags;           /* from filter initially */
+        unsigned int            send_bulk_pipe;  /* cached pipe values */
+        unsigned int            recv_bulk_pipe;
+        unsigned int            send_ctrl_pipe;
+        unsigned int            recv_ctrl_pipe;
+        unsigned int            recv_intr_pipe;
+
+        /* information about the device */
+        char                    *transport_name;
+        char                    *protocol_name;
+        __le32                  bcs_signature;
+        u8                      subclass;
+        u8                      protocol;
+        u8                      max_lun;
+
+        u8                      ifnum;           /* interface number   */
+        u8                      ep_bInterval;    /* interrupt interval */ 
+
+        /* function pointers for this device */
+        trans_cmnd              transport;       /* transport function     */
+        trans_reset             transport_reset; /* transport device reset */
+        proto_cmnd              proto_handler;   /* protocol handler       */
+
+        /* SCSI interfaces */
+        struct scsi_cmnd        *srb;            /* current srb         */
+
+        /* thread information */
+        int                     pid;             /* control thread       */
+
+        /* control and bulk communications data */
+        struct urb              *current_urb;    /* USB requests         */
+        struct usb_ctrlrequest  *cr;             /* control requests     */
+        struct usb_sg_request   current_sg;      /* scatter-gather req.  */
+        unsigned char           *iobuf;          /* I/O buffer           */
+        dma_addr_t              cr_dma;          /* buffer DMA addresses */
+        dma_addr_t              iobuf_dma;
+
+        /* mutual exclusion and synchronization structures */
+        struct semaphore        sema;            /* to sleep thread on      */
+        struct completion       notify;          /* thread begin/end        */
+        wait_queue_head_t       delay_wait;      /* wait during scan, reset */
+
+        /* subdriver information */
+        void                    *extra;          /* Any extra data          */
+        extra_data_destructor   extra_destructor;/* extra data destructor   */
+};
+
+/* Convert between us_data and the corresponding Scsi_Host */
+static struct Scsi_Host inline *us_to_host(struct us_data *us) {
+        return container_of((void *) us, struct Scsi_Host, hostdata);
+}
+static struct us_data inline *host_to_us(struct Scsi_Host *host) {
+        return (struct us_data *) host->hostdata;
+}
+
+/* Function to fill an inquiry response. See usb.c for details */
+extern void fill_inquiry_response(struct us_data *us,
+        unsigned char *data, unsigned int data_len);
+
+/* The scsi_lock() and scsi_unlock() macros protect the sm_state and the
+ * single queue element srb for write access */
+#define scsi_unlock(host)       spin_unlock_irq(host->host_lock)
+#define scsi_lock(host)         spin_lock_irq(host->host_lock)
+
+
+/* Vendor ID list for devices that require special handling */
+#define USB_VENDOR_ID_GENESYS           0x05e3  /* Genesys Logic */
+
+#endif