LXR linux-old/drivers/usb/microtek.h

   1 /*
   2 * Driver for Microtek Scanmaker X6 USB scanner and possibly others.
   3 * 
   4 * (C) Copyright 2000 John Fremlin <vii@penguinpowered.com>
   5 * (C) Copyright 2000 Oliver Neukum <Oliver.Neukum@lrz.uni-muenchen.de>
   6 *
   7 * See microtek.c for history
   8 *
   9 */
  10
  11typedef void (*mts_scsi_cmnd_callback)(Scsi_Cmnd *);
  12typedef void (*mts_usb_urb_callback) (struct urb *);
  13
  14
  15struct mts_transfer_context
  16{
  17        struct mts_desc* instance;
  18        mts_scsi_cmnd_callback final_callback;
  19        Scsi_Cmnd *srb;
  20        
  21        void* data;
  22        unsigned data_length;
  23        int data_pipe;
  24        int fragment;
  25
  26        u8 status; /* status returned from ep_response after command completion */
  27};
  28
  29
  30struct mts_desc {
  31        struct mts_desc *next;
  32        struct mts_desc *prev;
  33
  34        struct usb_device *usb_dev;
  35
  36        int interface;
  37
  38        /* Endpoint addresses */
  39        u8 ep_out;
  40        u8 ep_response;
  41        u8 ep_image;
  42
  43        struct Scsi_Host * host;
  44        Scsi_Host_Template ctempl;
  45        int host_number;
  46
  47        struct semaphore lock;
  48
  49        struct urb urb;
  50        struct mts_transfer_context context;
  51};
  52
  53
  54#define MTS_EP_OUT      0x1
  55#define MTS_EP_RESPONSE 0x2
  56#define MTS_EP_IMAGE    0x3
  57#define MTS_EP_TOTAL    0x3
  58
  59#define MTS_SCSI_ERR_MASK ~0x3fu
  60
  61