mirror of
https://github.com/DragonOS-Community/DragonOS.git
synced 2025-06-19 09:06:32 +00:00
5fb12ce447
第一套键盘扫描码的状态机 --------- Co-authored-by: guanjinquan <1666320330@qq.com> Co-authored-by: longjin <longjin@RinGoTek.cn>
45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
#pragma once
|
||
|
||
#include <common/glib.h>
|
||
|
||
#define PS2_KEYBOARD_INTR_VECTOR 0x21 // 键盘的中断向量号
|
||
|
||
// 定义键盘循环队列缓冲区大小为100bytes
|
||
#define ps2_keyboard_buffer_size 8
|
||
|
||
#define KEYBOARD_CMD_RESET_BUFFER 1
|
||
|
||
#define PORT_PS2_KEYBOARD_DATA 0x60
|
||
#define PORT_PS2_KEYBOARD_STATUS 0x64
|
||
#define PORT_PS2_KEYBOARD_CONTROL 0x64
|
||
|
||
#define PS2_KEYBOARD_COMMAND_WRITE 0x60 // 向键盘发送配置命令
|
||
#define PS2_KEYBOARD_COMMAND_READ 0x20 // 读取键盘的配置值
|
||
#define PS2_KEYBOARD_PARAM_INIT 0x47 // 初始化键盘控制器的配置值
|
||
|
||
// ========= 检测键盘控制器输入/输出缓冲区是否已满
|
||
#define PS2_KEYBOARD_FLAG_OUTBUF_FULL 0x01 // 键盘的输出缓冲区已满标志位
|
||
#define PS2_KEYBOARD_FLAG_INBUF_FULL 0x02 // 键盘的输入缓冲区已满标志位
|
||
|
||
// 等待向键盘控制器写入信息完成
|
||
// todo: bugfix:在不包含ps2键盘控制器的机器上，这里会卡死
|
||
#define wait_ps2_keyboard_write() while (io_in8(PORT_PS2_KEYBOARD_STATUS) & PS2_KEYBOARD_FLAG_INBUF_FULL)
|
||
// #define wait_ps2_keyboard_write() (1)
|
||
// 等待从键盘控制器读取信息完成
|
||
#define wait_ps2_keyboard_read() while (io_in8(PORT_PS2_KEYBOARD_STATUS) & PS2_KEYBOARD_FLAG_OUTBUF_FULL)
|
||
// #define wait_ps2_keyboard_read() (1)
|
||
|
||
extern struct vfs_file_operations_t ps2_keyboard_fops;
|
||
|
||
/**
|
||
* @brief 初始化键盘驱动程序的函数
|
||
*
|
||
*/
|
||
void ps2_keyboard_init();
|
||
|
||
/**
|
||
* @brief 键盘驱动卸载函数
|
||
*
|
||
*/
|
||
void ps2_keyboard_exit();
|