Linux kernel & device driver programming

Cross-Referenced Linux and Device Driver Code

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Version: [ 2.6.11.8 ] [ 2.6.25 ] [ 2.6.25.8 ] [ 2.6.31.13 ] Architecture: [ i386 ]
  1 #ifndef _LINUX_TYPES_H
  2 #define _LINUX_TYPES_H
  3 
  4 #include <asm/types.h>
  5 
  6 #ifndef __ASSEMBLY__
  7 #ifdef  __KERNEL__
  8 
  9 #define DECLARE_BITMAP(name,bits) \
 10         unsigned long name[BITS_TO_LONGS(bits)]
 11 
 12 #endif
 13 
 14 #include <linux/posix_types.h>
 15 
 16 #ifdef __KERNEL__
 17 
 18 typedef __u32 __kernel_dev_t;
 19 
 20 typedef __kernel_fd_set         fd_set;
 21 typedef __kernel_dev_t          dev_t;
 22 typedef __kernel_ino_t          ino_t;
 23 typedef __kernel_mode_t         mode_t;
 24 typedef __kernel_nlink_t        nlink_t;
 25 typedef __kernel_off_t          off_t;
 26 typedef __kernel_pid_t          pid_t;
 27 typedef __kernel_daddr_t        daddr_t;
 28 typedef __kernel_key_t          key_t;
 29 typedef __kernel_suseconds_t    suseconds_t;
 30 typedef __kernel_timer_t        timer_t;
 31 typedef __kernel_clockid_t      clockid_t;
 32 typedef __kernel_mqd_t          mqd_t;
 33 
 34 typedef _Bool                   bool;
 35 
 36 typedef __kernel_uid32_t        uid_t;
 37 typedef __kernel_gid32_t        gid_t;
 38 typedef __kernel_uid16_t        uid16_t;
 39 typedef __kernel_gid16_t        gid16_t;
 40 
 41 typedef unsigned long           uintptr_t;
 42 
 43 #ifdef CONFIG_UID16
 44 /* This is defined by include/asm-{arch}/posix_types.h */
 45 typedef __kernel_old_uid_t      old_uid_t;
 46 typedef __kernel_old_gid_t      old_gid_t;
 47 #endif /* CONFIG_UID16 */
 48 
 49 #if defined(__GNUC__)
 50 typedef __kernel_loff_t         loff_t;
 51 #endif
 52 
 53 /*
 54  * The following typedefs are also protected by individual ifdefs for
 55  * historical reasons:
 56  */
 57 #ifndef _SIZE_T
 58 #define _SIZE_T
 59 typedef __kernel_size_t         size_t;
 60 #endif
 61 
 62 #ifndef _SSIZE_T
 63 #define _SSIZE_T
 64 typedef __kernel_ssize_t        ssize_t;
 65 #endif
 66 
 67 #ifndef _PTRDIFF_T
 68 #define _PTRDIFF_T
 69 typedef __kernel_ptrdiff_t      ptrdiff_t;
 70 #endif
 71 
 72 #ifndef _TIME_T
 73 #define _TIME_T
 74 typedef __kernel_time_t         time_t;
 75 #endif
 76 
 77 #ifndef _CLOCK_T
 78 #define _CLOCK_T
 79 typedef __kernel_clock_t        clock_t;
 80 #endif
 81 
 82 #ifndef _CADDR_T
 83 #define _CADDR_T
 84 typedef __kernel_caddr_t        caddr_t;
 85 #endif
 86 
 87 /* bsd */
 88 typedef unsigned char           u_char;
 89 typedef unsigned short          u_short;
 90 typedef unsigned int            u_int;
 91 typedef unsigned long           u_long;
 92 
 93 /* sysv */
 94 typedef unsigned char           unchar;
 95 typedef unsigned short          ushort;
 96 typedef unsigned int            uint;
 97 typedef unsigned long           ulong;
 98 
 99 #ifndef __BIT_TYPES_DEFINED__
100 #define __BIT_TYPES_DEFINED__
101 
102 typedef         __u8            u_int8_t;
103 typedef         __s8            int8_t;
104 typedef         __u16           u_int16_t;
105 typedef         __s16           int16_t;
106 typedef         __u32           u_int32_t;
107 typedef         __s32           int32_t;
108 
109 #endif /* !(__BIT_TYPES_DEFINED__) */
110 
111 typedef         __u8            uint8_t;
112 typedef         __u16           uint16_t;
113 typedef         __u32           uint32_t;
114 
115 #if defined(__GNUC__)
116 typedef         __u64           uint64_t;
117 typedef         __u64           u_int64_t;
118 typedef         __s64           int64_t;
119 #endif
120 
121 /* this is a special 64bit data type that is 8-byte aligned */
122 #define aligned_u64 __u64 __attribute__((aligned(8)))
123 #define aligned_be64 __be64 __attribute__((aligned(8)))
124 #define aligned_le64 __le64 __attribute__((aligned(8)))
125 
126 /**
127  * The type used for indexing onto a disc or disc partition.
128  *
129  * Linux always considers sectors to be 512 bytes long independently
130  * of the devices real block size.
131  *
132  * blkcnt_t is the type of the inode's block count.
133  */
134 #ifdef CONFIG_LBDAF
135 typedef u64 sector_t;
136 typedef u64 blkcnt_t;
137 #else
138 typedef unsigned long sector_t;
139 typedef unsigned long blkcnt_t;
140 #endif
141 
142 /*
143  * The type of an index into the pagecache.  Use a #define so asm/types.h
144  * can override it.
145  */
146 #ifndef pgoff_t
147 #define pgoff_t unsigned long
148 #endif
149 
150 #endif /* __KERNEL__ */
151 
152 /*
153  * Below are truly Linux-specific types that should never collide with
154  * any application/library that wants linux/types.h.
155  */
156 
157 #ifdef __CHECKER__
158 #define __bitwise__ __attribute__((bitwise))
159 #else
160 #define __bitwise__
161 #endif
162 #ifdef __CHECK_ENDIAN__
163 #define __bitwise __bitwise__
164 #else
165 #define __bitwise
166 #endif
167 
168 typedef __u16 __bitwise __le16;
169 typedef __u16 __bitwise __be16;
170 typedef __u32 __bitwise __le32;
171 typedef __u32 __bitwise __be32;
172 typedef __u64 __bitwise __le64;
173 typedef __u64 __bitwise __be64;
174 
175 typedef __u16 __bitwise __sum16;
176 typedef __u32 __bitwise __wsum;
177 
178 #ifdef __KERNEL__
179 typedef unsigned __bitwise__ gfp_t;
180 typedef unsigned __bitwise__ fmode_t;
181 
182 #ifdef CONFIG_PHYS_ADDR_T_64BIT
183 typedef u64 phys_addr_t;
184 #else
185 typedef u32 phys_addr_t;
186 #endif
187 
188 typedef phys_addr_t resource_size_t;
189 
190 typedef struct {
191         volatile int counter;
192 } atomic_t;
193 
194 #ifdef CONFIG_64BIT
195 typedef struct {
196         volatile long counter;
197 } atomic64_t;
198 #endif
199 
200 struct ustat {
201         __kernel_daddr_t        f_tfree;
202         __kernel_ino_t          f_tinode;
203         char                    f_fname[6];
204         char                    f_fpack[6];
205 };
206 
207 #endif  /* __KERNEL__ */
208 #endif /*  __ASSEMBLY__ */
209 #endif /* _LINUX_TYPES_H */
210 
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