/* If fd is zero, it means that the parallel device uses the console */
ParallelState *parallel_init(int base, qemu_irq irq, CharDriverState *chr)
{
ParallelState *s;
uint8_t dummy;
s = (ParallelState *)qemu_mallocz(sizeof(ParallelState));
if (!s)
return NULL;
parallel_reset(s, irq, chr);
if (qemu_chr_ioctl(chr, CHR_IOCTL_PP_READ_STATUS, &dummy) == 0) {
s->hw_driver = 1;
s->status = dummy;
}
if (s->hw_driver) {
register_ioport_write(base, 8, 1, parallel_ioport_write_hw, s);
register_ioport_read(base, 8, 1, parallel_ioport_read_hw, s);
register_ioport_write(base+4, 1, 2, parallel_ioport_eppdata_write_hw2, s);
register_ioport_read(base+4, 1, 2, parallel_ioport_eppdata_read_hw2, s);
register_ioport_write(base+4, 1, 4, parallel_ioport_eppdata_write_hw4, s);
register_ioport_read(base+4, 1, 4, parallel_ioport_eppdata_read_hw4, s);
register_ioport_write(base+0x400, 8, 1, parallel_ioport_ecp_write, s);
register_ioport_read(base+0x400, 8, 1, parallel_ioport_ecp_read, s);
}
else {
register_ioport_write(base, 8, 1, parallel_ioport_write_sw, s);
register_ioport_read(base, 8, 1, parallel_ioport_read_sw, s);
}
return s;
}
/* If fd is zero, it means that the parallel device uses the console */
ParallelState *parallel_mm_init(target_phys_addr_t base, int it_shift, qemu_irq irq, CharDriverState *chr)
{
ParallelState *s;
int io_sw;
s = (ParallelState *)qemu_mallocz(sizeof(ParallelState));
if (!s)
return NULL;
parallel_reset(s, irq, chr);
s->base = base;
s->it_shift = it_shift;
io_sw = cpu_register_io_memory(0, parallel_mm_read_sw, parallel_mm_write_sw, s);
cpu_register_physical_memory(base, 8 << it_shift, io_sw);
return s;
}
/* If fd is zero, it means that the parallel device uses the console */
ParallelState *parallel_mm_init(target_phys_addr_t base, int it_shift, qemu_irq irq, CharDriverState *chr)
{
ParallelState *s;
int io_sw;
s = qemu_mallocz(sizeof(ParallelState));
s->irq = irq;
s->chr = chr;
s->it_shift = it_shift;
parallel_reset(s);
qemu_register_reset(parallel_reset, s);
io_sw = cpu_register_io_memory(parallel_mm_read_sw, parallel_mm_write_sw, s);
cpu_register_physical_memory(base, 8 << it_shift, io_sw);
return s;
}
/* Checks for delays in communication from Robostix 1 to Robostix 2
*/
void check_receive_delay( )
{
/* check if a new request has been received */
if( !flag_new_request )
{
/* disable specific sensors to save power */
enable_sensors( 0 );
/* reset Robostix-1-to-Robostix-2 interface */
parallel_reset( );
LED_ON( YELLOW );
}
flag_check_delay = 0;
flag_new_request = 0;
}
static int parallel_isa_initfn(ISADevice *dev)
{
ISAParallelState *isa = DO_UPCAST(ISAParallelState, dev, dev);
ParallelState *s = &isa->state;
int base = isa->iobase;
uint8_t dummy;
if (!s->chr) {
fprintf(stderr, "Can't create parallel device, empty char device\n");
exit(1);
}
isa_init_irq(dev, &s->irq, isa->isairq);
parallel_reset(s);
qemu_register_reset(parallel_reset, s);
if (qemu_chr_ioctl(s->chr, CHR_IOCTL_PP_READ_STATUS, &dummy) == 0) {
s->hw_driver = 1;
s->status = dummy;
}
if (s->hw_driver) {
register_ioport_write(base, 8, 1, parallel_ioport_write_hw, s);
register_ioport_read(base, 8, 1, parallel_ioport_read_hw, s);
register_ioport_write(base+4, 1, 2, parallel_ioport_eppdata_write_hw2, s);
register_ioport_read(base+4, 1, 2, parallel_ioport_eppdata_read_hw2, s);
register_ioport_write(base+4, 1, 4, parallel_ioport_eppdata_write_hw4, s);
register_ioport_read(base+4, 1, 4, parallel_ioport_eppdata_read_hw4, s);
register_ioport_write(base+0x400, 8, 1, parallel_ioport_ecp_write, s);
register_ioport_read(base+0x400, 8, 1, parallel_ioport_ecp_read, s);
}
else {
register_ioport_write(base, 8, 1, parallel_ioport_write_sw, s);
register_ioport_read(base, 8, 1, parallel_ioport_read_sw, s);
}
return 0;
}