PUBLIC void keyboard_handler(int irq)
{
u8 scan_code = in_byte(KB_DATA);
// disp_int(scan_code);
// disp_str(" ");
VirtualKey key = '\0';
bool make = !(scan_code & FLAG_BREAK);
bool two_byte_code = FALSE;
//若扫描码为0xe0则则直接插入缓冲区,然后返回
if(scan_code == 0xe0){
insert_kbuf(scan_code);
return;
}
//先得到virtualkey
if(keymap[(scan_code & 0x7f) * MAP_COLS + 2] == 0)
{
key = keymap[(scan_code & 0x7f) * MAP_COLS];
}
else{
if(get_head_pre() == 0xe0){
key = keymap[(scan_code & 0x7f) * MAP_COLS + 2];
two_byte_code = TRUE;
}
else
key = keymap[(scan_code & 0x7f) * MAP_COLS];
}
//只有普通键(非装饰键)的扫描码装入vk缓冲区
if(make && !is_decorative_key(key)){
insert_vkbuf(key);
}
if(two_byte_code)
insert_kbuf_revocation();
//若为装饰键则要修改状态
int i = 0;
for(i = 0; i < NUM_DECORATIVE_KEY; i++){
if(key == decorativeKey[i]){
if(make)
*(decorativeKeyStatus[i]) = VKEY_STATE_PRESSED;
else
*(decorativeKeyStatus[i]) = VKEY_STATE_RELEASED;
}
}
kernelUnBlock(readKeyBlockEip);
// u8 scan_code = in_byte(KB_DATA);
//
// if (kb_in.count < KB_IN_BYTES) {
// *(kb_in.p_head) = scan_code;
// kb_in.p_head++;
// if(kb_in.p_head == kb_in.buf + KB_IN_BYTES){
// kb_in.p_head = kb_in.buf;
// }
// kb_in.count++;
// }
}
/**********************************************************
hd_handler
***********************************************************
interrupt handler
@param irq IRQ nr of the disk interrupt
***********************************************************/
PUBLIC void hd_handler(int irq)
{
// disp_str("hd handler!! ");
hd_status = in_byte(REG_STATUS);
// disp_int((void*)hd_handler);
// disp_str("\nhd_status=");
// disp_int(hd_status);
// disp_str("\n");
//
// disp_int(hdIdentifyBlockEip);
kernelUnBlock(hdIdentifyBlockEip);
}
PUBLIC int sysUnBlock(u32 pid)
{
kernelUnBlock(pid);
}
