Repository navigation
Expand file tree
/
Copy pathmouse.c
More file actions
135 lines (125 loc) · 3.08 KB
/
Copy pathmouse.c
File metadata and controls
135 lines (125 loc) · 3.08 KB
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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
/**
*************************************************************************
*
* mouse.c
* 2016-02-11 by zlq
*
*------------------------------------------------------------------------
* @brief 本文件包含了关于鼠标的相关函数
*
*************************************************************************
*/
#include <miniOS/window.h>
#include <miniOS/keyboard.h>
#include "stdint.h"
#define MOUSE_ENABLE 0xf4
/**
* @brief 使能鼠标，向键盘控制器发送指令0xd4下一个数据就会发给
* 鼠标。
* @attention
* 鼠标激活后，会发送一个数据，0xfa
*
* @param[out] mouse，描述鼠标的结构体数据
* @return None
*/
void mouse_enable(Mouse_dsc *mouse)
{
wait_KBC_ready();
io_out8(0x64,0xd4);
wait_KBC_ready();
io_out8(0x60,MOUSE_ENABLE);
mouse->phase = 0;
return;
}
/**
* @brief 解析鼠标数据
* @attention
* 鼠标激活后，会发送一个数据，0xfa
*
* @param[out] mouse，描述鼠标的结构体数据
* @param[in] data，鼠标的中断数据
*
* @return 函数执行状态
*/
uint8_t mouse_decode(Mouse_dsc *mouse, uint8_t data)
{
if(mouse->phase == 0){
if(data == 0xfa){
mouse->phase = 1;
}
return 0;
}
else if(mouse->phase == 1){
//如果第一字节正确
if((data & 0xc8) == 0x08){
mouse->data[0] = data;
mouse->phase = 2;
}
return 0;
}
else if(mouse->phase == 2){
mouse->data[1] = data;
mouse->phase = 3;
return 0;
}
else if(mouse->phase == 3){
mouse->data[2] = data;
mouse->phase = 1;
//鼠标数据解析
mouse->btn = mouse->data[0] & 0x07;
mouse->x = mouse->data[1];
mouse->y = mouse->data[2];
if((mouse->data[0] & 0x10) != 0){
mouse->x |= 0xffffff00;
}
if((mouse->data[0] & 0x20) != 0){
mouse->y |= 0xffffff00;
}
mouse->y = -mouse->y;//鼠标的y方向和画面方向相反
return 1;
}
return -1;
}
/**
* @brief 鼠标初始化
*
* @param[out] mouse_buffer，保存鼠标的数据
* @param[in] background_color，背景颜色
* @return None
*/
void mouse_cursor_init(char *mouse_buffer, char background_color)
{
static char cursor[16][16] = {
"*...............",
"**..............",
"*O*.............",
"*OO*............",
"*OOO*...........",
"*OOOO*..........",
"*OOOOO*.........",
"*OOOOOO*........",
"*OOOOOOO*.......",
"*OOOOOOOO*......",
"*OOOOOOOOO*.....",
"*OOO*O*.*OO*....",
"*OO*.*O*..**....",
"*O*..*O*........",
"**....*O*.......",
"*.....***......."
};
int x, y;
for (y = 0; y < 16; y++) {
for (x = 0; x < 16; x++) {
if (cursor[y][x] == '*') {
mouse_buffer[y * 16 + x] = COL8_000000;
}
if (cursor[y][x] == 'O') {
mouse_buffer[y * 16 + x] = COL8_FFFFFF;
}
if (cursor[y][x] == '.') {
mouse_buffer[y * 16 + x] = background_color;
}
}
}
return;
}