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1408 serge 1
#ifndef _LINUX_KERNEL_H
2
#define _LINUX_KERNEL_H
3
 
4
/*
5
 * 'kernel.h' contains some often-used function prototypes etc
6
 */
7
 
8
#ifdef __KERNEL__
9
 
10
#include 
11
#include 
12
#include 
13
#include 
1970 serge 14
#include 
1408 serge 15
 
2967 Serge 16
#include 
17
 
18
#define __init
19
 
1964 serge 20
#define USHRT_MAX	((u16)(~0U))
21
#define SHRT_MAX	((s16)(USHRT_MAX>>1))
22
#define SHRT_MIN	((s16)(-SHRT_MAX - 1))
1408 serge 23
#define INT_MAX     ((int)(~0U>>1))
24
#define INT_MIN     (-INT_MAX - 1)
25
#define UINT_MAX    (~0U)
26
#define LONG_MAX    ((long)(~0UL>>1))
27
#define LONG_MIN    (-LONG_MAX - 1)
28
#define ULONG_MAX   (~0UL)
29
#define LLONG_MAX   ((long long)(~0ULL>>1))
30
#define LLONG_MIN   (-LLONG_MAX - 1)
31
#define ULLONG_MAX  (~0ULL)
3031 serge 32
#define SIZE_MAX	(~(size_t)0)
1408 serge 33
 
34
#define ALIGN(x,a)      __ALIGN_MASK(x,(typeof(x))(a)-1)
35
#define __ALIGN_MASK(x,mask)    (((x)+(mask))&~(mask))
36
#define PTR_ALIGN(p, a)     ((typeof(p))ALIGN((unsigned long)(p), (a)))
37
#define IS_ALIGNED(x, a)        (((x) & ((typeof(x))(a) - 1)) == 0)
38
 
3039 serge 39
/* The `const' in roundup() prevents gcc-3.3 from calling __divdi3 */
40
#define roundup(x, y) (                                 \
41
{                                                       \
42
        const typeof(y) __y = y;                        \
43
        (((x) + (__y - 1)) / __y) * __y;                \
44
}                                                       \
45
)
2967 Serge 46
 
47
#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
48
#define DIV_ROUND_CLOSEST(x, divisor)(                  \
49
{                                                       \
50
         typeof(divisor) __divisor = divisor;            \
51
         (((x) + ((__divisor) / 2)) / (__divisor));      \
52
}                                                       \
53
)
54
 
1408 serge 55
/**
56
 * upper_32_bits - return bits 32-63 of a number
57
 * @n: the number we're accessing
58
 *
59
 * A basic shift-right of a 64- or 32-bit quantity.  Use this to suppress
60
 * the "right shift count >= width of type" warning when that quantity is
61
 * 32-bits.
62
 */
63
#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))
64
 
65
/**
66
 * lower_32_bits - return bits 0-31 of a number
67
 * @n: the number we're accessing
68
 */
69
#define lower_32_bits(n) ((u32)(n))
70
 
71
#define KERN_EMERG      "<0>"   /* system is unusable                   */
72
#define KERN_ALERT      "<1>"   /* action must be taken immediately     */
73
#define KERN_CRIT       "<2>"   /* critical conditions                  */
74
#define KERN_ERR        "<3>"   /* error conditions                     */
75
#define KERN_WARNING    "<4>"   /* warning conditions                   */
76
#define KERN_NOTICE     "<5>"   /* normal but significant condition     */
77
#define KERN_INFO       "<6>"   /* informational                        */
78
#define KERN_DEBUG      "<7>"   /* debug-level messages                 */
1970 serge 79
extern const char hex_asc[];
80
#define hex_asc_lo(x)	hex_asc[((x) & 0x0f)]
81
#define hex_asc_hi(x)	hex_asc[((x) & 0xf0) >> 4]
1408 serge 82
 
1970 serge 83
static inline char *pack_hex_byte(char *buf, u8 byte)
84
{
85
	*buf++ = hex_asc_hi(byte);
86
	*buf++ = hex_asc_lo(byte);
87
	return buf;
88
}
89
 
3480 Serge 90
enum {
91
    DUMP_PREFIX_NONE,
92
    DUMP_PREFIX_ADDRESS,
93
    DUMP_PREFIX_OFFSET
94
};
1970 serge 95
 
3480 Serge 96
int hex_to_bin(char ch);
97
int hex2bin(u8 *dst, const char *src, size_t count);
1970 serge 98
 
3480 Serge 99
 
1408 serge 100
//int printk(const char *fmt, ...);
101
 
102
#define printk(fmt, arg...)    dbgprintf(fmt , ##arg)
103
 
104
 
105
/*
106
 * min()/max()/clamp() macros that also do
107
 * strict type-checking.. See the
108
 * "unnecessary" pointer comparison.
109
 */
110
#define min(x, y) ({                \
111
    typeof(x) _min1 = (x);          \
112
    typeof(y) _min2 = (y);          \
113
    (void) (&_min1 == &_min2);      \
114
    _min1 < _min2 ? _min1 : _min2; })
115
 
116
#define max(x, y) ({                \
117
    typeof(x) _max1 = (x);          \
118
    typeof(y) _max2 = (y);          \
119
    (void) (&_max1 == &_max2);      \
120
    _max1 > _max2 ? _max1 : _max2; })
121
 
1970 serge 122
#define min3(x, y, z) ({			\
123
	typeof(x) _min1 = (x);			\
124
	typeof(y) _min2 = (y);			\
125
	typeof(z) _min3 = (z);			\
126
	(void) (&_min1 == &_min2);		\
127
	(void) (&_min1 == &_min3);		\
128
	_min1 < _min2 ? (_min1 < _min3 ? _min1 : _min3) : \
129
		(_min2 < _min3 ? _min2 : _min3); })
130
 
131
#define max3(x, y, z) ({			\
132
	typeof(x) _max1 = (x);			\
133
	typeof(y) _max2 = (y);			\
134
	typeof(z) _max3 = (z);			\
135
	(void) (&_max1 == &_max2);		\
136
	(void) (&_max1 == &_max3);		\
137
	_max1 > _max2 ? (_max1 > _max3 ? _max1 : _max3) : \
138
		(_max2 > _max3 ? _max2 : _max3); })
139
 
140
/**
141
 * min_not_zero - return the minimum that is _not_ zero, unless both are zero
142
 * @x: value1
143
 * @y: value2
144
 */
145
#define min_not_zero(x, y) ({			\
146
	typeof(x) __x = (x);			\
147
	typeof(y) __y = (y);			\
148
	__x == 0 ? __y : ((__y == 0) ? __x : min(__x, __y)); })
149
 
150
/**
151
 * clamp - return a value clamped to a given range with strict typechecking
152
 * @val: current value
153
 * @min: minimum allowable value
154
 * @max: maximum allowable value
155
 *
156
 * This macro does strict typechecking of min/max to make sure they are of the
157
 * same type as val.  See the unnecessary pointer comparisons.
158
 */
159
#define clamp(val, min, max) ({			\
160
	typeof(val) __val = (val);		\
161
	typeof(min) __min = (min);		\
162
	typeof(max) __max = (max);		\
163
	(void) (&__val == &__min);		\
164
	(void) (&__val == &__max);		\
165
	__val = __val < __min ? __min: __val;	\
166
	__val > __max ? __max: __val; })
167
 
1408 serge 168
/*
169
 * ..and if you can't take the strict
170
 * types, you can specify one yourself.
171
 *
172
 * Or not use min/max/clamp at all, of course.
173
 */
174
#define min_t(type, x, y) ({            \
175
    type __min1 = (x);          \
176
    type __min2 = (y);          \
177
    __min1 < __min2 ? __min1: __min2; })
178
 
179
#define max_t(type, x, y) ({            \
180
    type __max1 = (x);          \
181
    type __max2 = (y);          \
182
    __max1 > __max2 ? __max1: __max2; })
183
 
184
/**
185
 * container_of - cast a member of a structure out to the containing structure
186
 * @ptr:    the pointer to the member.
187
 * @type:   the type of the container struct this is embedded in.
188
 * @member: the name of the member within the struct.
189
 *
190
 */
191
#define container_of(ptr, type, member) ({          \
192
    const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
193
    (type *)( (char *)__mptr - offsetof(type,member) );})
194
 
195
 
196
static inline void *kcalloc(size_t n, size_t size, uint32_t flags)
197
{
198
        if (n != 0 && size > ULONG_MAX / n)
199
                return NULL;
200
        return kzalloc(n * size, 0);
201
}
202
 
1968 serge 203
 
1412 serge 204
void free (void *ptr);
205
 
1408 serge 206
#endif /* __KERNEL__ */
207
 
208
typedef unsigned long   pgprotval_t;
209
 
210
typedef struct pgprot { pgprotval_t pgprot; } pgprot_t;
211
 
3262 Serge 212
struct file
213
{
214
    struct page  **pages;         /* physical memory backend */
215
    unsigned int   count;
216
    unsigned int   allocated;
217
    void           *vma;
218
};
219
 
1408 serge 220
struct vm_area_struct {};
221
struct address_space {};
222
 
1430 serge 223
struct device
224
{
225
    struct device   *parent;
226
    void            *driver_data;
227
};
228
 
229
static inline void dev_set_drvdata(struct device *dev, void *data)
230
{
231
    dev->driver_data = data;
232
}
233
 
234
static inline void *dev_get_drvdata(struct device *dev)
235
{
236
    return dev->driver_data;
237
}
238
 
1408 serge 239
#define preempt_disable()       do { } while (0)
240
#define preempt_enable_no_resched() do { } while (0)
241
#define preempt_enable()        do { } while (0)
242
#define preempt_check_resched()     do { } while (0)
243
 
244
#define preempt_disable_notrace()       do { } while (0)
245
#define preempt_enable_no_resched_notrace() do { } while (0)
246
#define preempt_enable_notrace()        do { } while (0)
247
 
1964 serge 248
#define in_dbg_master() (0)
1408 serge 249
 
2005 serge 250
#define HZ 100
251
 
252
#define time_after(a,b)         \
253
        (typecheck(unsigned long, a) && \
254
        typecheck(unsigned long, b) && \
255
        ((long)(b) - (long)(a) < 0))
256
 
2967 Serge 257
struct tvec_base;
2005 serge 258
 
2967 Serge 259
struct timer_list {
260
         struct list_head entry;
261
         unsigned long expires;
262
 
263
         void (*function)(unsigned long);
264
         unsigned long data;
265
 
266
//         struct tvec_base *base;
267
};
268
 
269
struct timespec {
270
    long tv_sec;                 /* seconds */
271
    long tv_nsec;                /* nanoseconds */
272
};
273
 
274
 
275
#define build_mmio_read(name, size, type, reg, barrier)     \
276
static inline type name(const volatile void __iomem *addr)  \
277
{ type ret; asm volatile("mov" size " %1,%0":reg (ret)      \
278
:"m" (*(volatile type __force *)addr) barrier); return ret; }
279
 
280
#define build_mmio_write(name, size, type, reg, barrier) \
281
static inline void name(type val, volatile void __iomem *addr) \
282
{ asm volatile("mov" size " %0,%1": :reg (val), \
283
"m" (*(volatile type __force *)addr) barrier); }
284
 
285
build_mmio_read(readb, "b", unsigned char, "=q", :"memory")
286
build_mmio_read(readw, "w", unsigned short, "=r", :"memory")
287
build_mmio_read(readl, "l", unsigned int, "=r", :"memory")
288
 
289
build_mmio_read(__readb, "b", unsigned char, "=q", )
290
build_mmio_read(__readw, "w", unsigned short, "=r", )
291
build_mmio_read(__readl, "l", unsigned int, "=r", )
292
 
293
build_mmio_write(writeb, "b", unsigned char, "q", :"memory")
294
build_mmio_write(writew, "w", unsigned short, "r", :"memory")
295
build_mmio_write(writel, "l", unsigned int, "r", :"memory")
296
 
297
build_mmio_write(__writeb, "b", unsigned char, "q", )
298
build_mmio_write(__writew, "w", unsigned short, "r", )
299
build_mmio_write(__writel, "l", unsigned int, "r", )
300
 
301
#define readb_relaxed(a) __readb(a)
302
#define readw_relaxed(a) __readw(a)
303
#define readl_relaxed(a) __readl(a)
304
#define __raw_readb __readb
305
#define __raw_readw __readw
306
#define __raw_readl __readl
307
 
308
#define __raw_writeb __writeb
309
#define __raw_writew __writew
310
#define __raw_writel __writel
311
 
312
static inline __u64 readq(const volatile void __iomem *addr)
313
{
314
        const volatile u32 __iomem *p = addr;
315
        u32 low, high;
316
 
317
        low = readl(p);
318
        high = readl(p + 1);
319
 
320
        return low + ((u64)high << 32);
321
}
322
 
323
static inline void writeq(__u64 val, volatile void __iomem *addr)
324
{
325
        writel(val, addr);
326
        writel(val >> 32, addr+4);
327
}
328
 
3031 serge 329
#define swap(a, b) \
330
        do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0)
2967 Serge 331
 
3031 serge 332
 
2967 Serge 333
#define mmiowb() barrier()
334
 
335
#define dev_err(dev, format, arg...)            \
336
        printk("Error %s " format, __func__ , ## arg)
337
 
338
#define dev_warn(dev, format, arg...)            \
339
        printk("Warning %s " format, __func__ , ## arg)
340
 
341
#define dev_info(dev, format, arg...)       \
342
        printk("Info %s " format , __func__, ## arg)
343
 
3480 Serge 344
//#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
345
#define BUILD_BUG_ON(condition)
2967 Serge 346
 
347
struct page
348
{
349
    unsigned int addr;
350
};
351
 
3243 Serge 352
#define page_to_phys(page)    ((dma_addr_t)(page))
2967 Serge 353
 
354
struct vm_fault {
355
    unsigned int flags;             /* FAULT_FLAG_xxx flags */
356
    pgoff_t pgoff;                  /* Logical page offset based on vma */
357
    void __user *virtual_address;   /* Faulting virtual address */
358
 
359
    struct page *page;              /* ->fault handlers should return a
360
                                     * page here, unless VM_FAULT_NOPAGE
361
                                     * is set (which is also implied by
362
                                     * VM_FAULT_ERROR).
363
                                     */
364
};
365
 
3031 serge 366
struct pagelist {
367
    dma_addr_t    *page;
368
    unsigned int   nents;
369
};
2967 Serge 370
 
3391 Serge 371
#define page_cache_release(page)        FreePage(page_to_phys(page))
3243 Serge 372
 
373
#define alloc_page(gfp_mask) (struct page*)AllocPage()
374
 
3391 Serge 375
#define __free_page(page) FreePage(page_to_phys(page))
376
 
377
#define get_page(a)
378
#define put_page(a)
379
#define set_pages_uc(a,b)
380
#define set_pages_wb(a,b)
381
 
382
#define pci_map_page(dev, page, offset, size, direction) \
383
        (dma_addr_t)( (offset)+page_to_phys(page))
384
 
385
#define pci_unmap_page(dev, dma_address, size, direction)
386
 
387
#define GFP_TEMPORARY  0
388
#define __GFP_NOWARN   0
389
#define __GFP_NORETRY  0
390
#define GFP_NOWAIT     0
391
 
392
#define IS_ENABLED(a)  0
393
 
394
 
395
#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
396
 
397
#define RCU_INIT_POINTER(p, v) \
398
        do { \
399
                p = (typeof(*v) __force __rcu *)(v); \
400
        } while (0)
401
 
402
 
403
#define rcu_dereference_raw(p)  ({ \
404
                                typeof(p) _________p1 = ACCESS_ONCE(p); \
405
                                (_________p1); \
406
                                })
407
#define rcu_assign_pointer(p, v) \
408
        ({ \
409
                if (!__builtin_constant_p(v) || \
410
                    ((v) != NULL)) \
411
                (p) = (v); \
412
        })
413
 
1408 serge 414
#endif
415