Revision 61
changes
| keyboard.c | ||
|---|---|---|
| 12 | 12 |
return (sys_irqsetpolicy(KBC_IRQ, IRQ_REENABLE | IRQ_EXCLUSIVE, interrupt_id)); |
| 13 | 13 |
} |
| 14 | 14 |
|
| 15 |
int done = 1; |
|
| 16 |
int sz = 1; |
|
| 15 | 17 |
int got_error_keyboard = 0; |
| 16 |
int two_byte_scancode = 0; |
|
| 17 | 18 |
|
| 18 | 19 |
void (kbc_ih)(void) {
|
| 20 |
if(done) sz = 1; |
|
| 21 |
else sz++; |
|
| 19 | 22 |
uint8_t status = 0; |
| 20 | 23 |
got_error_keyboard = 0; |
| 21 |
|
|
| 22 | 24 |
if (util_sys_inb(STATUS_REG, &status)) {
|
| 23 | 25 |
got_error_keyboard = 1; |
| 24 | 26 |
return; |
| 25 | 27 |
} |
| 26 |
|
|
| 27 | 28 |
if (status & (TIME_OUT_REC | PARITY_ERROR)) {
|
| 28 | 29 |
got_error_keyboard = 1; |
| 29 | 30 |
return; |
| 30 | 31 |
} |
| 31 |
|
|
| 32 |
if ((status & OUT_BUF_FUL) == 0 || (status & AUX_MOUSE) != 0) {
|
|
| 33 |
got_error_keyboard = 1; |
|
| 34 |
return; |
|
| 35 |
} |
|
| 32 | 36 |
uint8_t byte = 0; |
| 33 |
|
|
| 34 | 37 |
if (util_sys_inb(OUTPUT_BUF, &byte)) {
|
| 35 | 38 |
got_error_keyboard = 1; |
| 36 | 39 |
return; |
| 37 | 40 |
} |
| 38 |
|
|
| 39 |
if (two_byte_scancode) {
|
|
| 40 |
scancode[1] = byte; |
|
| 41 |
two_byte_scancode = 0; |
|
| 42 |
} else {
|
|
| 43 |
scancode[0] = byte; |
|
| 44 |
two_byte_scancode = (byte == TWO_BYTE_CODE); |
|
| 45 |
} |
|
| 46 |
|
|
| 41 |
scancode[sz-1] = byte; |
|
| 42 |
done = !(TWO_BYTE_CODE == byte); |
|
| 47 | 43 |
} |
| 48 | 44 |
|
| 49 | 45 |
int (keyboard_poll)(uint8_t bytes[], uint8_t *size){
|
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