| 271,6 → 271,8 |
|---|
| /** Initialize i8042. */ |
| void i8042_init(void) |
| { |
| int i; |
| |
| exc_register(VECTOR_KBD, "i8042_interrupt", (iroutine) i8042_interrupt); |
| i8042_wait(); |
| i8042_command_write(i8042_SET_COMMAND); |
| 281,16 → 283,14 |
|---|
| trap_virtual_enable_irqs(1<<IRQ_KBD); |
| chardev_initialize("i8042_kbd", &kbrd, &ops); |
| stdin = &kbrd; |
| |
| /* |
| * Clear input buffer |
| */ |
| { |
| int a=0; |
| while((i8042_status_read()&i8042_BUFFER_FULL_MASK)&&(a<20)) { |
| * Clear input buffer. |
| * Number of iterations is limited to prevent infinite looping. |
| */ |
| for (i = 0; (i8042_status_read() & i8042_BUFFER_FULL_MASK) && i < 100; i++) { |
| i8042_data_read(); |
| a++; |
| } |
| } |
| } |
| } |
| |
| /** Process i8042 interrupt. |