void InitSerial(void)
{
/* Disable interrupts during initialization */
disable() ;
/* 9600 baud */
outportb(SER_LCR, SER_LCR_DLAB) ;
outportb(SER_DLO, 12) ;
outportb(SER_DHI, 0) ;
/* 8 data bits, even parity, 1 stop bit */
outportb(SER_LCR, 0x1B) ;
/* Enable only receiver data ready interrupts */
outportb(SER_IER, 0x01) ;
/* Request to send, data terminal ready, enable interrupts */
outportb(SER_MCR, SER_MCR_RTS|SER_MCR_DTR|SER_MCR_OUT2) ;
/* Store address of ISR in IDT */
SetISR(IRQ2INT(SER_IRQ), SerialISR) ;
/* Unmask the UART's IRQ line */
outportb(0x21, inportb(0x21) & ~SER_MSK) ;
/* Re-enable interrupts */
enable() ;
}
PRIVATE void KeyboardInit(void)
{
static void *q[20] ;
kybd_queue = OSQCreate(q, ENTRIES(q)) ;
SetISR(IRQ2INT(IRQ_KYBD), OSKeyboardISR) ;
outportb(0x21, inportb(0x21) & ~0x02) ;
}
int irq_set_redirect(pid_t pid, irqid_t irq) {
irq_holder[irq] = pid;
int_set_handler(IRQ2INT(irq), irq_redirect);
irq_allow(irq);
return 0;
}
void keyboard_init()
{
INODE tmp[2];
new_pipe(1024, tmp);
keyboard_pipe = tmp[1];
/* vfs_mount("/dev/kbd", tmp[0]); */
vfs_open(keyboard_pipe, O_WRONLY);
// Make keyboard stdin (first entry in file descriptor table)
process_t *p = current->proc;
p->fd[0] = calloc(1, sizeof(file_desc_t));
fd_get(p->fd[0]);
p->fd[0]->ino = tmp[0];
p->fd[0]->flags = O_RDONLY;
vfs_open(tmp[0], O_RDONLY);
new_pipe(1024, tmp);
keyboard_raw = tmp[1];
vfs_mount("/dev/kbdraw", tmp[0]);
vfs_open(keyboard_raw, O_WRONLY);
register_int_handler(IRQ2INT(IRQ_KBD), keyboard_handler);
}