static void comc_setup(int speed)
{
OUTB(com_cfcr, CFCR_DLAB | g_com_port.comc_fmt);
OUTB(com_dlbl, COMC_BPS(speed) & 0xff);
OUTB(com_dlbh, COMC_BPS(speed) >> 8);
OUTB(com_cfcr, g_com_port.comc_fmt);
OUTB(com_mcr, MCR_RTS | MCR_DTR);
for ( int wait = COMC_TXWAIT; wait > 0; wait-- ) {
INB(com_data);
if ( !(INB(com_lsr) & LSR_RXRDY) )
break;
}
}
static void
comc_setup(int speed)
{
comc_curspeed = speed;
outb(COMPORT + com_cfcr, CFCR_DLAB | COMC_FMT);
outb(COMPORT + com_dlbl, COMC_BPS(speed) & 0xff);
outb(COMPORT + com_dlbh, COMC_BPS(speed) >> 8);
outb(COMPORT + com_cfcr, COMC_FMT);
outb(COMPORT + com_mcr, MCR_RTS | MCR_DTR);
do
inb(COMPORT + com_data);
while (inb(COMPORT + com_lsr) & LSR_RXRDY);
}
static int
comc_init(int arg)
{
if (comc_started && arg == 0)
return 0;
comc_started = 1;
outb(COMPORT + com_cfcr, CFCR_DLAB | COMC_FMT);
outb(COMPORT + com_dlbl, COMC_BPS(COMSPEED) & 0xff);
outb(COMPORT + com_dlbh, COMC_BPS(COMSPEED) >> 8);
outb(COMPORT + com_cfcr, COMC_FMT);
outb(COMPORT + com_mcr, MCR_RTS | MCR_DTR);
do
inb(COMPORT + com_data);
while (inb(COMPORT + com_lsr) & LSR_RXRDY);
return(0);
}
