1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
// һЩ���õġ����õĽӿ�
#ifndef __OPENLOONGSON_PUBLIC_H
#define __OPENLOONGSON_PUBLIC_H
#include <stdio.h>
// pmon�ṩ�Ĵ�ӡ��������main()����
struct callvectors {
int (*open) (char *, int, int);
int (*close) (int);
int (*read) (int, void *, int);
int (*write) (int, void *, int);
long long (*lseek) (int, long long, int);
int (*printf) (const char *, ...);
void (*cacheflush) (void);
char *(*gets) (char *);
};
#define myprintf (*callvec->printf)
#define mygets (*callvec->gets)
extern struct callvectors *callvec;
#define MIN(a, b) ((a) > (b) ? (b) : (a))
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
typedef enum
{
FALSE=0,
TRUE=1
}BOOL;
/*
* ��ָ���Ĵ�����ָ��λ��1
* @reg �Ĵ�����ַ
* @bit ��Ҫ��1����һbit
*/
void reg_set_one_bit(volatile unsigned int *reg, unsigned int bit);
/*
* ��ָ���Ĵ�����ָ��λ����
* @reg �Ĵ�����ַ
* @bit ��Ҫ�������һbit
*/
void reg_clr_one_bit(volatile unsigned int *reg, unsigned int bit);
/*
* ��ȡָ���Ĵ�����ָ��λ��ֵ
* @reg �Ĵ�����ַ
* @bit ��Ҫ��ȡֵ����һbit
* @ret ָ��λ��ֵ
*/
unsigned int reg_get_bit(volatile unsigned int *reg, unsigned int bit);
/*
* ��Ĵ�����д��8bit(һ���ֽ�)����
* @data ��������
* @addr �Ĵ�����ַ
*/
void reg_write_8(unsigned char data, volatile unsigned char *addr);
/*
* �ӼĴ�������8bit(һ���ֽ�)����
* @addr �Ĵ�����ַ
* @ret ����������
*/
unsigned char reg_read_8(volatile unsigned char *addr);
/*
* ��Ĵ�����дһ��32bit������
* @data ��������
* @addr �Ĵ�����ַ
*/
void reg_write_32(unsigned int data, volatile unsigned int *addr);
/*
* �ӼĴ�������һ��32bit����
* @addr �Ĵ�����ַ
* @ret ����������
*/
unsigned int reg_read_32(volatile unsigned int *addr);
/**
* ffs - find first bit set
* @x: the word to search
*/
int ls1c_ffs(int x);
/*
* fls - find last (most-significant) bit set
* @x: the word to search
*
* This is defined the same way as ffs.
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
int ls1c_fls(int x);
#endif
|
