LXR linux/include/linux/usb

   1/*
   2 * Interface to the libusual.
   3 *
   4 * Copyright (c) 2005 Pete Zaitcev <zaitcev@redhat.com>
   5 * Copyright (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
   6 * Copyright (c) 1999 Michael Gee (michael@linuxspecific.com)
   7 */
   8
   9#ifndef __LINUX_USB_USUAL_H
  10#define __LINUX_USB_USUAL_H
  11
  12
  13/* We should do this for cleanliness... But other usb_foo.h do not do this. */
  14/* #include <linux/usb.h> */
  15
  16/*
  17 * The flags field, which we store in usb_device_id.driver_info.
  18 * It is compatible with the old usb-storage flags in lower 24 bits.
  19 */
  20
  21/*
  22 * Static flag definitions.  We use this roundabout technique so that the
  23 * proc_info() routine can automatically display a message for each flag.
  24 */
  25#define US_DO_ALL_FLAGS                                         \
  26        US_FLAG(SINGLE_LUN,     0x00000001)                     \
  27                /* allow access to only LUN 0 */                \
  28        US_FLAG(NEED_OVERRIDE,  0x00000002)                     \
  29                /* unusual_devs entry is necessary */           \
  30        US_FLAG(SCM_MULT_TARG,  0x00000004)                     \
  31                /* supports multiple targets */                 \
  32        US_FLAG(FIX_INQUIRY,    0x00000008)                     \
  33                /* INQUIRY response needs faking */             \
  34        US_FLAG(FIX_CAPACITY,   0x00000010)                     \
  35                /* READ CAPACITY response too big */            \
  36        US_FLAG(IGNORE_RESIDUE, 0x00000020)                     \
  37                /* reported residue is wrong */                 \
  38        US_FLAG(BULK32,         0x00000040)                     \
  39                /* Uses 32-byte CBW length */                   \
  40        US_FLAG(NOT_LOCKABLE,   0x00000080)                     \
  41                /* PREVENT/ALLOW not supported */               \
  42        US_FLAG(GO_SLOW,        0x00000100)                     \
  43                /* Need delay after Command phase */            \
  44        US_FLAG(NO_WP_DETECT,   0x00000200)                     \
  45                /* Don't check for write-protect */             \
  46        US_FLAG(MAX_SECTORS_64, 0x00000400)                     \
  47                /* Sets max_sectors to 64    */                 \
  48        US_FLAG(IGNORE_DEVICE,  0x00000800)                     \
  49                /* Don't claim device */                        \
  50        US_FLAG(CAPACITY_HEURISTICS,    0x00001000)             \
  51                /* sometimes sizes is too big */                \
  52        US_FLAG(MAX_SECTORS_MIN,0x00002000)                     \
  53                /* Sets max_sectors to arch min */              \
  54        US_FLAG(BULK_IGNORE_TAG,0x00004000)                     \
  55                /* Ignore tag mismatch in bulk operations */    \
  56        US_FLAG(SANE_SENSE,     0x00008000)                     \
  57                /* Sane Sense (> 18 bytes) */                   \
  58        US_FLAG(CAPACITY_OK,    0x00010000)                     \
  59                /* READ CAPACITY response is correct */         \
  60        US_FLAG(BAD_SENSE,      0x00020000)                     \
  61                /* Bad Sense (never more than 18 bytes) */      \
  62        US_FLAG(NO_READ_DISC_INFO,      0x00040000)             \
  63                /* cannot handle READ_DISC_INFO */              \
  64        US_FLAG(NO_READ_CAPACITY_16,    0x00080000)             \
  65                /* cannot handle READ_CAPACITY_16 */            \
  66        US_FLAG(INITIAL_READ10, 0x00100000)                     \
  67                /* Initial READ(10) (and others) must be retried */     \
  68        US_FLAG(WRITE_CACHE,    0x00200000)                     \
  69                /* Write Cache status is not available */
  70
  71#define US_FLAG(name, value)    US_FL_##name = value ,
  72enum { US_DO_ALL_FLAGS };
  73#undef US_FLAG
  74
  75/*
  76 * The bias field for libusual and friends.
  77 */
  78#define USB_US_TYPE_NONE   0
  79#define USB_US_TYPE_STOR   1            /* usb-storage */
  80#define USB_US_TYPE_UB     2            /* ub */
  81
  82#define USB_US_TYPE(flags)              (((flags) >> 24) & 0xFF)
  83#define USB_US_ORIG_FLAGS(flags)        ((flags) & 0x00FFFFFF)
  84
  85#include <linux/usb/storage.h>
  86
  87/*
  88 */
  89extern int usb_usual_ignore_device(struct usb_interface *intf);
  90extern struct usb_device_id usb_storage_usb_ids[];
  91
  92#ifdef CONFIG_USB_LIBUSUAL
  93
  94extern void usb_usual_set_present(int type);
  95extern void usb_usual_clear_present(int type);
  96extern int usb_usual_check_type(const struct usb_device_id *, int type);
  97#else
  98
  99#define usb_usual_set_present(t)        do { } while(0)
 100#define usb_usual_clear_present(t)      do { } while(0)
 101#define usb_usual_check_type(id, t)     (0)
 102#endif /* CONFIG_USB_LIBUSUAL */
 103
 104#endif /* __LINUX_USB_USUAL_H */
 105