void serial_isr (void *arg)
{
int space;
int c;
const int rx_get = buf_info.rx_get;
int rx_put = buf_info.rx_put;
if (rx_get <= rx_put)
space = CONFIG_SERIAL_SOFTWARE_FIFO - (rx_put - rx_get);
else
space = rx_get - rx_put;
while (serial_tstc_dev (ACTING_UART0_BASE)) {
c = serial_getc_dev (ACTING_UART0_BASE);
if (space) {
buf_info.rx_buffer[rx_put++] = c;
space--;
}
if (rx_put == CONFIG_SERIAL_SOFTWARE_FIFO)
rx_put = 0;
if (space < CONFIG_SERIAL_SOFTWARE_FIFO / 4) {
/* Stop flow by setting RTS inactive */
out_8((u8 *)ACTING_UART0_BASE + UART_MCR,
in_8((u8 *)ACTING_UART0_BASE + UART_MCR) &
(0xFF ^ 0x02));
}
}
buf_info.rx_put = rx_put;
}
int serial_tstc(void)
{
return serial_tstc_dev(CONFIG_PSC_CONSOLE);
}
int serial1_tstc(void)
{
return serial_tstc_dev(PSC_BASE2);
}
int serial0_tstc(void)
{
return (serial_tstc_dev(PSC_BASE));
}
int serial_tstc(void)
{
return serial_tstc_dev(ACTING_UART0_BASE);
}
int serial1_tstc(void)
{
return (serial_tstc_dev(UART1_BASE));
}
int serial0_tstc(void)
{
return (serial_tstc_dev(UART0_BASE));
}