mm, PM/Freezer: Disable OOM killer when tasks are frozen
[linux-2.6.git] / include / linux / usb_usual.h
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
61 #define US_FLAG(name, value)    US_FL_##name = value ,
62 enum { US_DO_ALL_FLAGS };
63 #undef US_FLAG
64
65 /*
66  * The bias field for libusual and friends.
67  */
68 #define USB_US_TYPE_NONE   0
69 #define USB_US_TYPE_STOR   1            /* usb-storage */
70 #define USB_US_TYPE_UB     2            /* ub */
71
72 #define USB_US_TYPE(flags)              (((flags) >> 24) & 0xFF)
73 #define USB_US_ORIG_FLAGS(flags)        ((flags) & 0x00FFFFFF)
74
75 /*
76  * This is probably not the best place to keep these constants, conceptually.
77  * But it's the only header included into all places which need them.
78  */
79
80 /* Sub Classes */
81
82 #define US_SC_RBC       0x01            /* Typically, flash devices */
83 #define US_SC_8020      0x02            /* CD-ROM */
84 #define US_SC_QIC       0x03            /* QIC-157 Tapes */
85 #define US_SC_UFI       0x04            /* Floppy */
86 #define US_SC_8070      0x05            /* Removable media */
87 #define US_SC_SCSI      0x06            /* Transparent */
88 #define US_SC_LOCKABLE  0x07            /* Password-protected */
89
90 #define US_SC_ISD200    0xf0            /* ISD200 ATA */
91 #define US_SC_CYP_ATACB 0xf1            /* Cypress ATACB */
92 #define US_SC_DEVICE    0xff            /* Use device's value */
93
94 /* Protocols */
95
96 #define US_PR_CBI       0x00            /* Control/Bulk/Interrupt */
97 #define US_PR_CB        0x01            /* Control/Bulk w/o interrupt */
98 #define US_PR_BULK      0x50            /* bulk only */
99
100 #define US_PR_USBAT     0x80            /* SCM-ATAPI bridge */
101 #define US_PR_EUSB_SDDR09       0x81    /* SCM-SCSI bridge for SDDR-09 */
102 #define US_PR_SDDR55    0x82            /* SDDR-55 (made up) */
103 #define US_PR_DPCM_USB  0xf0            /* Combination CB/SDDR09 */
104 #define US_PR_FREECOM   0xf1            /* Freecom */
105 #define US_PR_DATAFAB   0xf2            /* Datafab chipsets */
106 #define US_PR_JUMPSHOT  0xf3            /* Lexar Jumpshot */
107 #define US_PR_ALAUDA    0xf4            /* Alauda chipsets */
108 #define US_PR_KARMA     0xf5            /* Rio Karma */
109
110 #define US_PR_DEVICE    0xff            /* Use device's value */
111
112 /*
113  */
114 extern int usb_usual_ignore_device(struct usb_interface *intf);
115 extern struct usb_device_id usb_storage_usb_ids[];
116
117 #ifdef CONFIG_USB_LIBUSUAL
118
119 extern void usb_usual_set_present(int type);
120 extern void usb_usual_clear_present(int type);
121 extern int usb_usual_check_type(const struct usb_device_id *, int type);
122 #else
123
124 #define usb_usual_set_present(t)        do { } while(0)
125 #define usb_usual_clear_present(t)      do { } while(0)
126 #define usb_usual_check_type(id, t)     (0)
127 #endif /* CONFIG_USB_LIBUSUAL */
128
129 #endif /* __LINUX_USB_USUAL_H */