Linux-2.6.12-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!
diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
new file mode 100644
index 0000000..625b7aa9
--- /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