/*
* Function purpose:
* Require character data from UART
*/
int
serial_getc(void)
{
#ifdef CONFIG_USB_TTY
int tmp=0;
char c;
while (1)
{
if(pUart_Reg->URUSR & URUSR_RXDRDY)
{
tmp++;
break;
}
if(c = usbtty_getc())
break;
}
return tmp?(pUart_Reg->URRDR&0xff):c;
#else
while (!(pUart_Reg->URUSR & URUSR_RXDRDY));
return pUart_Reg->URRDR&0xff;
#endif
}
int quad_getc_dev (unsigned long base)
{
if (zoom2_debug_board_connected ())
return NS16550_getc ((NS16550_t) base);
return usbtty_getc();
}
/*
* Function purpose:
* return RXDRDY status bit in Uart status register
*/
int
serial_tstc(void)
{
#ifdef CONFIG_USB_TTY
return (((pUart_Reg->URUSR & URUSR_RXDRDY)||usbtty_getc()) ? 1 : 0);
#else
return ((pUart_Reg->URUSR & URUSR_RXDRDY) ? 1 : 0);
#endif
}
