void
prom_init(void)
{
int phandle, size;
OF_initialize();
memset(&promops, 0, sizeof(promops));
/* Access to boot arguments */
promops.po_bootpath = openfirmware_bootpath;
promops.po_bootfile = openfirmware_bootfile;
promops.po_bootargs = openfirmware_bootargs;
/* I/O functions */
promops.po_getchar = openfirmware_getchar;
promops.po_putchar = openfirmware_putchar;
promops.po_open = OF_open;
promops.po_close = OF_close;
promops.po_read = OF_read;
promops.po_write = OF_write;
promops.po_seek = OF_seek;
promops.po_instance_to_package = OF_instance_to_package;
/* Program termination control */
promops.po_halt = OF_exit;
promops.po_abort = OF_enter;
promops.po_ticks = OF_milliseconds;
/* Device node traversal */
promops.po_firstchild = OF_child;
promops.po_nextsibling = OF_peer;
/* Device node properties */
promops.po_getprop = OF_getprop;
/* Device discovery */
promops.po_finddevice = OF_finddevice;
/* Console I/O */
phandle = openfirmware_chosen();
size = _prom_getprop(phandle, "stdin", &promops.po_stdin,
sizeof(promops.po_stdin));
size += _prom_getprop(phandle, "stdout", &promops.po_stdout,
sizeof(promops.po_stdout));
if (size != (sizeof(promops.po_stdin) + sizeof(promops.po_stdout))) {
prom_halt();
}
}
int
netif_open(void *machdep_hint)
{
struct of_dev *op = machdep_hint;
struct iodesc *io;
int fd, error;
char addr[32];
#ifdef NETIF_DEBUG
printf("netif_open...");
#endif
/* find a free socket */
io = sockets;
if (io->io_netif) {
#ifdef NETIF_DEBUG
printf("device busy\n");
#endif
errno = ENFILE;
return -1;
}
bzero(io, sizeof *io);
netif_of.nif_devdata = op;
io->io_netif = &netif_of;
/* Put our ethernet address in io->myea */
_prom_getprop(prom_instance_to_package(op->handle),
"mac-address", io->myea, sizeof io->myea);
#ifdef NETIF_DEBUG
printf("OK\n");
#endif
return 0;
}
static const char*
openfirmware_bootargs(void)
{
static char bootargs[PROM_MAX_PATH * 2];
if (_prom_getprop(openfirmware_chosen(), "bootargs", bootargs,
sizeof(bootargs)) < 0) {
openfirmware_fatal();
}
return bootargs;
}
static const char*
openfirmware_bootpath(void)
{
static char bootpath[PROM_MAX_PATH];
if (_prom_getprop(openfirmware_chosen(), "bootpath", bootpath,
sizeof(bootpath)) < 0) {
openfirmware_fatal();
}
return bootpath;
}
