static _INLINE_ void transmit_chars(struct bf535_serial *info)
{
int idx = info->hub2;
if (info->x_char) { /* Send next char */
local_put_char(idx, info->x_char);
info->x_char = 0;
goto clear_and_return;
}
if((info->xmit_cnt <= 0) || info->tty->stopped) { /* TX ints off */
ACCESS_PORT_IER(idx) /* Change access to IER & data port */
UART_IER(idx) &= ~UART_IER_ETBEI;
goto clear_and_return;
}
/* Send char */
local_put_char(idx,info->xmit_buf[info->xmit_tail++]);
info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1);
info->xmit_cnt--;
if (info->xmit_cnt < WAKEUP_CHARS)
rs_sched_event(info, RS_EVENT_WRITE_WAKEUP);
if(info->xmit_cnt <= 0) { /* All done for now... TX ints off */
ACCESS_PORT_IER(idx) /* Change access to IER & data port */
UART_IER(idx) &= ~UART_IER_ETBEI;
goto clear_and_return;
}
clear_and_return:
/* Clear interrupt (should be auto)*/
return;
}
void serial_putc(const char c)
{
if ((*pUART_LSR) & UART_LSR_TEMT) {
if (c == '\n')
serial_putc('\r');
local_put_char(c);
}
while (!((*pUART_LSR) & UART_LSR_TEMT))
SYNC_ALL;
return;
}