__initfunc(static int check_midi(unsigned int iobase))
{
unsigned long timeout;
unsigned long flags;
unsigned char b;
if (iobase <= 0 || iobase > 0x1000-MIDI_EXTENT)
return 0;
if (check_region(iobase, MIDI_EXTENT))
return 0;
timeout = jiffies + (HZ / 100);
while (inb(MIDI_STATUS(iobase)) & MIDI_WRITE_EMPTY)
if ((signed)(jiffies - timeout) > 0)
return 0;
save_flags(flags);
cli();
outb(0xff, MIDI_DATA(iobase));
b = inb(MIDI_STATUS(iobase));
restore_flags(flags);
if (!(b & MIDI_WRITE_EMPTY))
return 0;
while (inb(MIDI_STATUS(iobase)) & MIDI_WRITE_EMPTY)
if ((signed)(jiffies - timeout) > 0)
return 0;
return 1;
}
static void output_status(struct hfmodem_state *dev, int ptt)
{
int dcd = 0;
ptt = !!ptt;
if (dev->ptt_out.flags & SP_SER) {
outb(dcd | (ptt << 1), UART_MCR(dev->ptt_out.seriobase));
outb(0x40 & (-ptt), UART_LCR(dev->ptt_out.seriobase));
}
if (dev->ptt_out.flags & SP_PAR) {
outb(ptt | (dcd << 1), LPT_DATA(dev->ptt_out.pariobase));
}
if (dev->ptt_out.flags & SP_MIDI && ptt) {
outb(0, MIDI_DATA(dev->ptt_out.midiiobase));
}
}
void sm_output_status(struct sm_state *sm)
{
int invert_dcd = 0;
int invert_ptt = 0;
int ptt = /*hdlcdrv_ptt(&sm->hdrv)*/(sm->dma.ptt_cnt > 0) ^ invert_ptt;
int dcd = (!!sm->hdrv.hdlcrx.dcd) ^ invert_dcd;
if (sm->hdrv.ptt_out.flags & SP_SER) {
outb(dcd | (ptt << 1), UART_MCR(sm->hdrv.ptt_out.seriobase));
outb(0x40 & (-ptt), UART_LCR(sm->hdrv.ptt_out.seriobase));
}
if (sm->hdrv.ptt_out.flags & SP_PAR && sm->pardev && sm->pardev->port)
parport_write_data(sm->pardev->port, ptt | (dcd << 1));
if (sm->hdrv.ptt_out.flags & SP_MIDI && hdlcdrv_ptt(&sm->hdrv))
outb(0, MIDI_DATA(sm->hdrv.ptt_out.midiiobase));
}
