MyOS/keyboard.cpp at master · Iaven00/MyOS · GitHub

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#include "keyboard.h"


void printf(char* str);
KeyboardDriver::KeyboardDriver(InterruptManager* manager)
: InterruptHandler(0x21,manager), //键盘中断号 0x21
dataport(0x60),  // 数据端口号
commandport(0x64) //指令端口号
{

    /*while(commandport.Read() & 0x1 ) //取结果二进制最右位
        dataport.Read();
    commandport.Write(0xAE);  //通知 pic 开始键盘中断
    commandport.Write(0x20);  // 当前状态
    uint8_t status = (dataport.Read() | 1) & ~0x10;
    commandport.Write(0x60);
    dataport.Write(status);
    dataport.Write(0xF4);*/
    while(commandport.Read() & 0x1)
        dataport.Read();
    commandport.Write(0xae); // activate interrupts
    commandport.Write(0x20); // command 0x20 = read controller command byte
    uint8_t status = (dataport.Read() | 1) & ~0x10;
    commandport.Write(0x60); // command 0x60 = set controller command byte
    dataport.Write(status);
    dataport.Write(0xf4);
}


KeyboardDriver::~KeyboardDriver(){

}

uint32_t KeyboardDriver::HandleInterrupt(uint32_t esp){

    printf("KEYBOARD INT!\n");
    uint8_t key = dataport.Read();

    if(key < 0x80)
    {
        switch(key)
        {
            case 0xFA:  break;
            case 0x45:  break;
            /*case 0x04: handler->OnKeyDown('3'); break;
            case 0x05: handler->OnKeyDown('4'); break;
            case 0x06: handler->OnKeyDown('5'); break;
            case 0x07: handler->OnKeyDown('6'); break;
            case 0x08: handler->OnKeyDown('7'); break;
            case 0x09: handler->OnKeyDown('8'); break;
            case 0x0A: handler->OnKeyDown('9'); break;
            case 0x0B: handler->OnKeyDown('0'); break;

            case 0x10: handler->OnKeyDown('q'); break;
            case 0x11: handler->OnKeyDown('w'); break;
            case 0x12: handler->OnKeyDown('e'); break;
            case 0x13: handler->OnKeyDown('r'); break;
            case 0x14: handler->OnKeyDown('t'); break;
            case 0x15: handler->OnKeyDown('z'); break;
            case 0x16: handler->OnKeyDown('u'); break;
            case 0x17: handler->OnKeyDown('i'); break;
            case 0x18: handler->OnKeyDown('o'); break;
            case 0x19: handler->OnKeyDown('p'); break;

            case 0x1E: handler->OnKeyDown('a'); break;
            case 0x1F: handler->OnKeyDown('s'); break;
            case 0x20: handler->OnKeyDown('d'); break;
            case 0x21: handler->OnKeyDown('f'); break;
            case 0x22: handler->OnKeyDown('g'); break;
            case 0x23: handler->OnKeyDown('h'); break;
            case 0x24: handler->OnKeyDown('j'); break;
            case 0x25: handler->OnKeyDown('k'); break;
            case 0x26: handler->OnKeyDown('l'); break;

            case 0x2C: handler->OnKeyDown('y'); break;
            case 0x2D: handler->OnKeyDown('x'); break;
            case 0x2E: handler->OnKeyDown('c'); break;
            case 0x2F: handler->OnKeyDown('v'); break;
            case 0x30: handler->OnKeyDown('b'); break;
            case 0x31: handler->OnKeyDown('n'); break;
            case 0x32: handler->OnKeyDown('m'); break;
            case 0x33: handler->OnKeyDown(','); break;
            case 0x34: handler->OnKeyDown('.'); break;
            case 0x35: handler->OnKeyDown('-'); break;

            case 0x1C: handler->OnKeyDown('\n'); break;
            case 0x39: handler->OnKeyDown(' '); break;*/

            default:
            {
                char* foo =  "KEYBOARD 0x00  \n";
    		char* hex =  "0123456789ABCDEF";
    		foo[11] = hex[(key >> 4) & 0x0F];  //key的前四位
    		foo[12] = hex[key & 0x0F]; //后四位
    		printf("fuck!");break;
            }
        }
    }
    /*char* foo =  "KEYBOARD 0x00 ";
    char* hex =  "0123456789ABCDEF";
    foo[11] = hex[(key >> 4) & 0x0F];  //key的前四位

    foo[12] = hex[key & 0x0F]; //后四位
    printf(foo);*/
    return esp;

}