static void
receive_chars(struct async_struct *info, int *status, struct pt_regs *regs)
{
struct tty_struct *tty = info->tty;
unsigned char ch;
int __ch;
while (1) {
__ch = pdc_console_poll_key(NULL);
if (__ch == -1) /* no character available */
break;
ch = (unsigned char) ((unsigned) __ch & 0x000000ffu);
if (tty->flip.count >= TTY_FLIPBUF_SIZE)
continue;
*tty->flip.char_buf_ptr = ch;
*tty->flip.flag_buf_ptr = 0;
tty->flip.flag_buf_ptr++;
tty->flip.char_buf_ptr++;
tty->flip.count++;
}
tty_flip_buffer_push(tty);
}
static void pdc_console_poll(unsigned long unused)
{
int data, count = 0;
struct tty_struct *tty = tty_port_tty_get(&tty_port);
if (!tty)
return;
while (1) {
data = pdc_console_poll_key(NULL);
if (data == -1)
break;
tty_insert_flip_char(tty, data & 0xFF, TTY_NORMAL);
count ++;
}
if (count)
tty_flip_buffer_push(tty);
tty_kref_put(tty);
if (pdc_cons.flags & CON_ENABLED)
mod_timer(&pdc_console_timer, jiffies + PDC_CONS_POLL_DELAY);
}