132 lines
4.2 KiB
C
132 lines
4.2 KiB
C
#include "../include/keyboard.h"
|
|
#include "../include/graphics.h"
|
|
#include "../include/memory.h"
|
|
#include "../include/queue.h"
|
|
#include "../include/io.h"
|
|
|
|
static KEY_STATUS *key_status;
|
|
Queue *key_char_queue;
|
|
|
|
unsigned char keyboard_map[128] =
|
|
{
|
|
0, 27, '1', '2', '3', '4', '5', '6', '7', '8', /* 9 */
|
|
'9', '0', '-', '=', '\b', /* Backspace */
|
|
'\t', /* Tab */
|
|
'q', 'w', 'e', 'r', /* 19 */
|
|
't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n', /* Enter key */
|
|
0, /* 29 - Control */
|
|
'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', /* 39 */
|
|
'\'', '`', -1, /* Left shift */
|
|
'\\', 'z', 'x', 'c', 'v', 'b', 'n', /* 49 */
|
|
'm', ',', '.', '/', -1, /* Right shift */
|
|
'*',
|
|
0, /* Alt */
|
|
' ', /* Space bar */
|
|
0, /* Caps lock */
|
|
0, /* 59 - F1 key ... > */
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, /* < ... F10 */
|
|
0, /* 69 - Num lock*/
|
|
0, /* Scroll Lock */
|
|
0, /* Home key */
|
|
0, /* Up Arrow */
|
|
0, /* Page Up */
|
|
'-',
|
|
0, /* Left Arrow */
|
|
0,
|
|
0, /* Right Arrow */
|
|
'+',
|
|
0, /* 79 - End key*/
|
|
0, /* Down Arrow */
|
|
0, /* Page Down */
|
|
0, /* Insert Key */
|
|
0, /* Delete Key */
|
|
0, 0, 0,
|
|
0, /* F11 Key */
|
|
0, /* F12 Key */
|
|
0, /* All other keys are undefined */
|
|
};
|
|
|
|
unsigned char shift_keyboard_map[128] =
|
|
{
|
|
0, 27, '!', '@', '#', '$', '%', '^', '&', '*', /* 9 */
|
|
'(', ')', '_', '+', '\b', /* Backspace */
|
|
'\t', /* Tab */
|
|
'Q', 'W', 'E', 'R', /* 19 */
|
|
'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n', /* Enter key */
|
|
0, /* 29 - Control */
|
|
'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', /* 39 */
|
|
'"', '~', -1, /* Left shift */
|
|
'|', 'Z', 'X', 'C', 'V', 'B', 'N', /* 49 */
|
|
'M', '<', '>', '?', -1, /* Right shift */
|
|
'*',
|
|
0, /* Alt */
|
|
' ', /* Space bar */
|
|
0, /* Caps lock */
|
|
0, /* 59 - F1 key ... > */
|
|
0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, /* < ... F10 */
|
|
0, /* 69 - Num lock*/
|
|
0, /* Scroll Lock */
|
|
0, /* Home key */
|
|
0, /* Up Arrow */
|
|
0, /* Page Up */
|
|
'-',
|
|
0, /* Left Arrow */
|
|
0,
|
|
0, /* Right Arrow */
|
|
'+',
|
|
0, /* 79 - End key*/
|
|
0, /* Down Arrow */
|
|
0, /* Page Down */
|
|
0, /* Insert Key */
|
|
0, /* Delete Key */
|
|
0, 0, 0,
|
|
0, /* F11 Key */
|
|
0, /* F12 Key */
|
|
0, /* All other keys are undefined */
|
|
};
|
|
|
|
void init_keyboard(){
|
|
key_status = (KEY_STATUS*) alloc(sizeof(KEY_STATUS));
|
|
key_status->is_shift = 0;
|
|
|
|
key_char_queue = create_queue();
|
|
register_interrupt_handler(0x21,handle_keyboard_input);
|
|
}
|
|
|
|
int handle_keyboard_input(){
|
|
unsigned char status = read_port(KEYBOARD_STATUS_PORT);
|
|
uint32_t key = read_port(KEYBOARD_DATA_PORT);
|
|
int release = key & 0xb10000000;
|
|
char c = key_status->is_shift ? shift_keyboard_map[(unsigned char )key] : keyboard_map[(unsigned char )key];
|
|
|
|
|
|
if(!release) {
|
|
if(c == -1) {
|
|
key_status->is_shift = 1;
|
|
return 0;
|
|
}
|
|
|
|
if(key == 29){
|
|
key_status->is_ctrl = 1;
|
|
return 0;
|
|
}
|
|
|
|
if(c == 0) return 0;
|
|
|
|
queue_push(key_char_queue,(char)c);
|
|
} else {
|
|
if(c == -1){
|
|
key_status->is_shift = 0;
|
|
}
|
|
|
|
if(key == 29){
|
|
key_status->is_ctrl = 0;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|