static void parallel_isa_realizefn(DeviceState *dev, Error **errp)
{
static int index;
ISADevice *isadev = ISA_DEVICE(dev);
ISAParallelState *isa = ISA_PARALLEL(dev);
ParallelState *s = &isa->state;
int base;
uint8_t dummy;
if (!s->chr) {
error_setg(errp, "Can't create parallel device, empty char device");
return;
}
if (isa->index == -1) {
isa->index = index;
}
if (isa->index >= MAX_PARALLEL_PORTS) {
error_setg(errp, "Max. supported number of parallel ports is %d.",
MAX_PARALLEL_PORTS);
return;
}
if (isa->iobase == -1) {
isa->iobase = isa_parallel_io[isa->index];
}
index++;
base = isa->iobase;
isa_init_irq(isadev, &s->irq, isa->isairq);
qemu_register_reset(parallel_reset, s);
if (qemu_chr_fe_ioctl(s->chr, CHR_IOCTL_PP_READ_STATUS, &dummy) == 0) {
s->hw_driver = 1;
s->status = dummy;
}
isa_register_portio_list(isadev, base,
(s->hw_driver
? &isa_parallel_portio_hw_list[0]
: &isa_parallel_portio_sw_list[0]),
s, "parallel");
}
static int parallel_isa_initfn(ISADevice *dev)
{
static int index;
ISAParallelState *isa = ISA_PARALLEL(dev);
ParallelState *s = &isa->state;
int base;
uint8_t dummy;
if (!s->chr) {
fprintf(stderr, "Can't create parallel device, empty char device\n");
exit(1);
}
if (isa->index == -1)
isa->index = index;
if (isa->index >= MAX_PARALLEL_PORTS)
return -1;
if (isa->iobase == -1)
isa->iobase = isa_parallel_io[isa->index];
index++;
base = isa->iobase;
isa_init_irq(dev, &s->irq, isa->isairq);
qemu_register_reset(parallel_reset, s);
if (qemu_chr_fe_ioctl(s->chr, CHR_IOCTL_PP_READ_STATUS, &dummy) == 0) {
s->hw_driver = 1;
s->status = dummy;
}
isa_register_portio_list(dev, base,
(s->hw_driver
? &isa_parallel_portio_hw_list[0]
: &isa_parallel_portio_sw_list[0]),
s, "parallel");
return 0;
}
