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#ifndef _LINUX_KERNEL_H

#define _LINUX_KERNEL_H

/*

 * 'kernel.h' contains some often-used function prototypes etc

 */

#ifdef __KERNEL__

#include 

#include 

#include 

#include 

#include 

#include 

#define __init

#define USHRT_MAX	((u16)(~0U))

#define SHRT_MAX	((s16)(USHRT_MAX>>1))

#define SHRT_MIN	((s16)(-SHRT_MAX - 1))

#define INT_MAX     ((int)(~0U>>1))

#define INT_MIN     (-INT_MAX - 1)

#define UINT_MAX    (~0U)

#define LONG_MAX    ((long)(~0UL>>1))

#define LONG_MIN    (-LONG_MAX - 1)

#define ULONG_MAX   (~0UL)

#define LLONG_MAX   ((long long)(~0ULL>>1))

#define LLONG_MIN   (-LLONG_MAX - 1)

#define ULLONG_MAX  (~0ULL)

#define SIZE_MAX	(~(size_t)0)

#define ALIGN(x,a)      __ALIGN_MASK(x,(typeof(x))(a)-1)

#define __ALIGN_MASK(x,mask)    (((x)+(mask))&~(mask))

#define PTR_ALIGN(p, a)     ((typeof(p))ALIGN((unsigned long)(p), (a)))

#define IS_ALIGNED(x, a)        (((x) & ((typeof(x))(a) - 1)) == 0)

#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))

#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))

#define DIV_ROUND_CLOSEST(x, divisor)(                  \

{                                                       \

         typeof(divisor) __divisor = divisor;            \

         (((x) + ((__divisor) / 2)) / (__divisor));      \

}                                                       \

)

/**

 * upper_32_bits - return bits 32-63 of a number

 * @n: the number we're accessing

 *

 * A basic shift-right of a 64- or 32-bit quantity.  Use this to suppress

 * the "right shift count >= width of type" warning when that quantity is

 * 32-bits.

 */

#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))

/**

 * lower_32_bits - return bits 0-31 of a number

 * @n: the number we're accessing

 */

#define lower_32_bits(n) ((u32)(n))

#define KERN_EMERG      "<0>"   /* system is unusable                   */

#define KERN_ALERT      "<1>"   /* action must be taken immediately     */

#define KERN_CRIT       "<2>"   /* critical conditions                  */

#define KERN_ERR        "<3>"   /* error conditions                     */

#define KERN_WARNING    "<4>"   /* warning conditions                   */

#define KERN_NOTICE     "<5>"   /* normal but significant condition     */

#define KERN_INFO       "<6>"   /* informational                        */

#define KERN_DEBUG      "<7>"   /* debug-level messages                 */

extern const char hex_asc[];

#define hex_asc_lo(x)	hex_asc[((x) & 0x0f)]

#define hex_asc_hi(x)	hex_asc[((x) & 0xf0) >> 4]

static inline char *pack_hex_byte(char *buf, u8 byte)

{

	*buf++ = hex_asc_hi(byte);

	*buf++ = hex_asc_lo(byte);

	return buf;

}

extern int hex_to_bin(char ch);

extern void hex2bin(u8 *dst, const char *src, size_t count);

//int printk(const char *fmt, ...);

#define printk(fmt, arg...)    dbgprintf(fmt , ##arg)

/*

 * min()/max()/clamp() macros that also do

 * strict type-checking.. See the

 * "unnecessary" pointer comparison.

 */

#define min(x, y) ({                \

    typeof(x) _min1 = (x);          \

    typeof(y) _min2 = (y);          \

    (void) (&_min1 == &_min2);      \

    _min1 < _min2 ? _min1 : _min2; })

#define max(x, y) ({                \

    typeof(x) _max1 = (x);          \

    typeof(y) _max2 = (y);          \

    (void) (&_max1 == &_max2);      \

    _max1 > _max2 ? _max1 : _max2; })

#define min3(x, y, z) ({			\

	typeof(x) _min1 = (x);			\

	typeof(y) _min2 = (y);			\

	typeof(z) _min3 = (z);			\

	(void) (&_min1 == &_min2);		\

	(void) (&_min1 == &_min3);		\

	_min1 < _min2 ? (_min1 < _min3 ? _min1 : _min3) : \

		(_min2 < _min3 ? _min2 : _min3); })

#define max3(x, y, z) ({			\

	typeof(x) _max1 = (x);			\

	typeof(y) _max2 = (y);			\

	typeof(z) _max3 = (z);			\

	(void) (&_max1 == &_max2);		\

	(void) (&_max1 == &_max3);		\

	_max1 > _max2 ? (_max1 > _max3 ? _max1 : _max3) : \

		(_max2 > _max3 ? _max2 : _max3); })

/**

 * min_not_zero - return the minimum that is _not_ zero, unless both are zero

 * @x: value1

 * @y: value2

 */

#define min_not_zero(x, y) ({			\

	typeof(x) __x = (x);			\

	typeof(y) __y = (y);			\

	__x == 0 ? __y : ((__y == 0) ? __x : min(__x, __y)); })

/**

 * clamp - return a value clamped to a given range with strict typechecking

 * @val: current value

 * @min: minimum allowable value

 * @max: maximum allowable value

 *

 * This macro does strict typechecking of min/max to make sure they are of the

 * same type as val.  See the unnecessary pointer comparisons.

 */

#define clamp(val, min, max) ({			\

	typeof(val) __val = (val);		\

	typeof(min) __min = (min);		\

	typeof(max) __max = (max);		\

	(void) (&__val == &__min);		\

	(void) (&__val == &__max);		\

	__val = __val < __min ? __min: __val;	\

	__val > __max ? __max: __val; })

/*

 * ..and if you can't take the strict

 * types, you can specify one yourself.

 *

 * Or not use min/max/clamp at all, of course.

 */

#define min_t(type, x, y) ({            \

    type __min1 = (x);          \

    type __min2 = (y);          \

    __min1 < __min2 ? __min1: __min2; })

#define max_t(type, x, y) ({            \

    type __max1 = (x);          \

    type __max2 = (y);          \

    __max1 > __max2 ? __max1: __max2; })

/**

 * container_of - cast a member of a structure out to the containing structure

 * @ptr:    the pointer to the member.

 * @type:   the type of the container struct this is embedded in.

 * @member: the name of the member within the struct.

 *

 */

#define container_of(ptr, type, member) ({          \

    const typeof( ((type *)0)->member ) *__mptr = (ptr);    \

    (type *)( (char *)__mptr - offsetof(type,member) );})

static inline void *kcalloc(size_t n, size_t size, uint32_t flags)

{

        if (n != 0 && size > ULONG_MAX / n)

                return NULL;

        return kzalloc(n * size, 0);

}

void free (void *ptr);

#endif /* __KERNEL__ */

typedef unsigned long   pgprotval_t;

typedef struct pgprot { pgprotval_t pgprot; } pgprot_t;

struct file {};

struct vm_area_struct {};

struct address_space {};

struct device

{

    struct device   *parent;

    void            *driver_data;

};

static inline void dev_set_drvdata(struct device *dev, void *data)

{

    dev->driver_data = data;

}

static inline void *dev_get_drvdata(struct device *dev)

{

    return dev->driver_data;

}

#define preempt_disable()       do { } while (0)

#define preempt_enable_no_resched() do { } while (0)

#define preempt_enable()        do { } while (0)

#define preempt_check_resched()     do { } while (0)

#define preempt_disable_notrace()       do { } while (0)

#define preempt_enable_no_resched_notrace() do { } while (0)

#define preempt_enable_notrace()        do { } while (0)

#define in_dbg_master() (0)

#define HZ 100

#define time_after(a,b)         \

        (typecheck(unsigned long, a) && \

        typecheck(unsigned long, b) && \

        ((long)(b) - (long)(a) < 0))

struct tvec_base;

struct timer_list {

         struct list_head entry;

         unsigned long expires;

         void (*function)(unsigned long);

         unsigned long data;

//         struct tvec_base *base;

};

struct timespec {

    long tv_sec;                 /* seconds */

    long tv_nsec;                /* nanoseconds */

};

#define build_mmio_read(name, size, type, reg, barrier)     \

static inline type name(const volatile void __iomem *addr)  \

{ type ret; asm volatile("mov" size " %1,%0":reg (ret)      \

:"m" (*(volatile type __force *)addr) barrier); return ret; }

#define build_mmio_write(name, size, type, reg, barrier) \

static inline void name(type val, volatile void __iomem *addr) \

{ asm volatile("mov" size " %0,%1": :reg (val), \

"m" (*(volatile type __force *)addr) barrier); }

build_mmio_read(readb, "b", unsigned char, "=q", :"memory")

build_mmio_read(readw, "w", unsigned short, "=r", :"memory")

build_mmio_read(readl, "l", unsigned int, "=r", :"memory")

build_mmio_read(__readb, "b", unsigned char, "=q", )

build_mmio_read(__readw, "w", unsigned short, "=r", )

build_mmio_read(__readl, "l", unsigned int, "=r", )

build_mmio_write(writeb, "b", unsigned char, "q", :"memory")

build_mmio_write(writew, "w", unsigned short, "r", :"memory")

build_mmio_write(writel, "l", unsigned int, "r", :"memory")

build_mmio_write(__writeb, "b", unsigned char, "q", )

build_mmio_write(__writew, "w", unsigned short, "r", )

build_mmio_write(__writel, "l", unsigned int, "r", )

#define readb_relaxed(a) __readb(a)

#define readw_relaxed(a) __readw(a)

#define readl_relaxed(a) __readl(a)

#define __raw_readb __readb

#define __raw_readw __readw

#define __raw_readl __readl

#define __raw_writeb __writeb

#define __raw_writew __writew

#define __raw_writel __writel

static inline __u64 readq(const volatile void __iomem *addr)

{

        const volatile u32 __iomem *p = addr;

        u32 low, high;

        low = readl(p);

        high = readl(p + 1);

        return low + ((u64)high << 32);

}

static inline void writeq(__u64 val, volatile void __iomem *addr)

{

        writel(val, addr);

        writel(val >> 32, addr+4);

}

#define swap(a, b) \

        do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0)

#define mmiowb() barrier()

#define dev_err(dev, format, arg...)            \

        printk("Error %s " format, __func__ , ## arg)

#define dev_warn(dev, format, arg...)            \

        printk("Warning %s " format, __func__ , ## arg)

#define dev_info(dev, format, arg...)       \

        printk("Info %s " format , __func__, ## arg)

#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))

struct scatterlist {

    unsigned long   page_link;

    unsigned int    offset;

    unsigned int    length;

    dma_addr_t      dma_address;

    unsigned int    dma_length;

};

struct sg_table {

    struct scatterlist *sgl;        /* the list */

    unsigned int nents;             /* number of mapped entries */

    unsigned int orig_nents;        /* original size of list */

};

#define SG_MAX_SINGLE_ALLOC             (4096 / sizeof(struct scatterlist))

struct scatterlist *sg_next(struct scatterlist *sg);

#define sg_dma_address(sg)      ((sg)->dma_address)

#define sg_dma_len(sg)         ((sg)->length)

#define sg_is_chain(sg)         ((sg)->page_link & 0x01)

#define sg_is_last(sg)          ((sg)->page_link & 0x02)

#define sg_chain_ptr(sg)        \

        ((struct scatterlist *) ((sg)->page_link & ~0x03))

static inline addr_t sg_page(struct scatterlist *sg)

{

    return (addr_t)((sg)->page_link & ~0x3);

}

#define for_each_sg(sglist, sg, nr, __i)        \

        for (__i = 0, sg = (sglist); __i < (nr); __i++, sg = sg_next(sg))

struct page

{

    unsigned int addr;

};

struct vm_fault {

    unsigned int flags;             /* FAULT_FLAG_xxx flags */

    pgoff_t pgoff;                  /* Logical page offset based on vma */

    void __user *virtual_address;   /* Faulting virtual address */

    struct page *page;              /* ->fault handlers should return a

                                     * page here, unless VM_FAULT_NOPAGE

                                     * is set (which is also implied by

                                     * VM_FAULT_ERROR).

                                     */

};

struct pagelist {

    dma_addr_t    *page;

    unsigned int   nents;

};

#endif