static int
opattach(dev_info_t *dip, ddi_attach_cmd_t cmd)
{
switch (cmd) {
case DDI_ATTACH:
if (prom_is_openprom()) {
options_nodeid = prom_optionsnode();
} else {
options_nodeid = OBP_BADNODE;
}
opdip = dip;
if (ddi_create_minor_node(dip, "openprom", S_IFCHR,
0, DDI_PSEUDO, NULL) == DDI_FAILURE) {
return (DDI_FAILURE);
}
return (DDI_SUCCESS);
default:
return (DDI_FAILURE);
}
}
static int
cpr_get_options_node(pnode_t *nodep)
{
*nodep = prom_optionsnode();
if (*nodep == OBP_NONODE || *nodep == OBP_BADNODE) {
cpr_err(CE_WARN, "cannot get \"options\" node");
return (ENOENT);
}
return (0);
}
/*
* Here we use the "screen-#columns" and "screen-#rows" settings of
* PROM to help us decide the console size and cursor position. The
* actual sizes of PROM's TEM and the console might be different with
* those "screen-#.." settings, in cases that they are too big to
* accommodate.
*/
void
prom_get_tem_size(size_t *height, size_t *width)
{
char buf[MAXPATHLEN];
char name[16];
pnode_t node;
int len;
if ((node = prom_optionsnode()) == OBP_BADNODE)
return;
(void) prom_strcpy(name, "screen-#rows");
if ((len = prom_getproplen(node, (caddr_t)name)) > 0) {
(void) prom_getprop(node, (caddr_t)name, (caddr_t)buf);
*height = prom_atol(buf, len);
}
(void) prom_strcpy(name, "screen-#columns");
if ((len = prom_getproplen(node, (caddr_t)name)) > 0) {
(void) prom_getprop(node, (caddr_t)name, (caddr_t)buf);
*width = prom_atol(buf, len);
}
}
