1 #pragma once
2 
3 #include <common/glib.h>
4 
5 #define PS2_KEYBOARD_INTR_VECTOR 0x21 // 键盘的中断向量号
6 
7 // 定义键盘循环队列缓冲区大小为100bytes
8 #define ps2_keyboard_buffer_size 8
9 
10 #define KEYBOARD_CMD_RESET_BUFFER 1
11 
12 #define PORT_PS2_KEYBOARD_DATA 0x60
13 #define PORT_PS2_KEYBOARD_STATUS 0x64
14 #define PORT_PS2_KEYBOARD_CONTROL 0x64
15 
16 #define PS2_KEYBOARD_COMMAND_WRITE 0x60 // 向键盘发送配置命令
17 #define PS2_KEYBOARD_COMMAND_READ 0x20  // 读取键盘的配置值
18 #define PS2_KEYBOARD_PARAM_INIT 0x47    // 初始化键盘控制器的配置值
19 
20 // ========= 检测键盘控制器输入/输出缓冲区是否已满
21 #define PS2_KEYBOARD_FLAG_OUTBUF_FULL 0x01 // 键盘的输出缓冲区已满标志位
22 #define PS2_KEYBOARD_FLAG_INBUF_FULL 0x02  // 键盘的输入缓冲区已满标志位
23 
24 // 等待向键盘控制器写入信息完成
25 // todo: bugfix:在不包含ps2键盘控制器的机器上,这里会卡死
26 #define wait_ps2_keyboard_write() while (io_in8(PORT_PS2_KEYBOARD_STATUS) & PS2_KEYBOARD_FLAG_INBUF_FULL)
27 // #define wait_ps2_keyboard_write() (1)
28 // 等待从键盘控制器读取信息完成
29 #define wait_ps2_keyboard_read() while (io_in8(PORT_PS2_KEYBOARD_STATUS) & PS2_KEYBOARD_FLAG_OUTBUF_FULL)
30 // #define wait_ps2_keyboard_read() (1)
31 
32 extern struct vfs_file_operations_t ps2_keyboard_fops;
33 
34 /**
35  * @brief 初始化键盘驱动程序的函数
36  *
37  */
38 void ps2_keyboard_init();
39 
40 /**
41  * @brief 键盘驱动卸载函数
42  *
43  */
44 void ps2_keyboard_exit();
45