static struct ebus_devinfo *
ebus_setup_dinfo(device_t dev, struct ebus_softc *sc, phandle_t node)
{
struct ebus_devinfo *edi;
struct isa_regs *reg;
ofw_isa_intr_t *intrs;
ofw_pci_intr_t rintr;
u_int64_t start;
int nreg, nintr, i;
edi = malloc(sizeof(*edi), M_DEVBUF, M_ZERO | M_WAITOK);
if (ofw_bus_gen_setup_devinfo(&edi->edi_obdinfo, node) != 0) {
free(edi, M_DEVBUF);
return (NULL);
}
resource_list_init(&edi->edi_rl);
nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®);
if (nreg == -1) {
device_printf(dev, "<%s>: incomplete\n",
edi->edi_obdinfo.obd_name);
goto fail;
}
for (i = 0; i < nreg; i++) {
start = ISA_REG_PHYS(reg + i);
resource_list_add(&edi->edi_rl, SYS_RES_MEMORY, i,
start, start + reg[i].size - 1, reg[i].size);
}
free(reg, M_OFWPROP);
nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intrs),
(void **)&intrs);
for (i = 0; i < nintr; i++) {
rintr = ofw_isa_route_intr(dev, node, &sc->sc_iinfo, intrs[i]);
if (rintr == PCI_INVALID_IRQ) {
device_printf(dev,
"<%s>: could not map EBus interrupt %d\n",
edi->edi_obdinfo.obd_name, intrs[i]);
free(intrs, M_OFWPROP);
goto fail;
}
resource_list_add(&edi->edi_rl, SYS_RES_IRQ, i,
rintr, rintr, 1);
}
free(intrs, M_OFWPROP);
return (edi);
fail:
ebus_destroy_dinfo(edi);
return (NULL);
}
static void
isa_setup_children(device_t dev, phandle_t parent)
{
struct isa_regs *regs;
struct resource_list *rl;
device_t cdev;
u_int64_t end, start;
ofw_isa_intr_t *intrs, rintr;
phandle_t node;
uint32_t *drqs, *regidx;
int i, ndrq, nintr, nreg, nregidx, rid, rtype;
char *name;
/*
* Loop through children and fake up PnP devices for them.
* Their resources are added as fully mapped and specified because
* adjusting the resources and the resource list entries respectively
* in isa_alloc_resource() causes trouble with drivers which use
* rman_get_start(), pass-through or allocate and release resources
* multiple times, etc. Adjusting the resources might be better off
* in a bus_activate_resource method but the common ISA code doesn't
* allow for an isa_activate_resource().
*/
for (node = OF_child(parent); node != 0; node = OF_peer(node)) {
if ((OF_getprop_alloc(node, "name", 1, (void **)&name)) == -1)
continue;
/*
* Keyboard and mouse controllers hang off of the `8042'
* node but we have no real use for the `8042' itself.
*/
if (strcmp(name, "8042") == 0) {
isa_setup_children(dev, node);
free(name, M_OFWPROP);
continue;
}
for (i = 0; ofw_isa_pnp_map[i].name != NULL; i++)
if (strcmp(ofw_isa_pnp_map[i].name, name) == 0)
break;
if (ofw_isa_pnp_map[i].name == NULL) {
device_printf(dev, "no PnP map entry for node "
"0x%lx: %s\n", (unsigned long)node, name);
free(name, M_OFWPROP);
continue;
}
if ((cdev = BUS_ADD_CHILD(dev, ISA_ORDER_PNPBIOS, NULL, -1)) ==
NULL)
panic("isa_setup_children: BUS_ADD_CHILD failed");
isa_set_logicalid(cdev, ofw_isa_pnp_map[i].id);
isa_set_vendorid(cdev, ofw_isa_pnp_map[i].id);
rl = BUS_GET_RESOURCE_LIST(dev, cdev);
nreg = OF_getprop_alloc(node, "reg", sizeof(*regs),
(void **)®s);
for (i = 0; i < nreg; i++) {
start = ISA_REG_PHYS(®s[i]);
end = start + regs[i].size - 1;
rtype = ofw_isa_range_map(isab_ranges, isab_nrange,
&start, &end, NULL);
rid = 0;
while (resource_list_find(rl, rtype, rid) != NULL)
rid++;
bus_set_resource(cdev, rtype, rid, start,
end - start + 1);
}
if (nreg == -1 && parent != isab_node) {
/*
* The "reg" property still might be an index into
* the set of registers of the parent device like
* with the nodes hanging off of the `8042' node.
*/
nregidx = OF_getprop_alloc(node, "reg", sizeof(*regidx),
(void **)®idx);
if (nregidx > 2)
panic("isa_setup_children: impossible number "
"of register indices");
if (nregidx != -1 && (nreg = OF_getprop_alloc(parent,
"reg", sizeof(*regs), (void **)®s)) >= nregidx) {
for (i = 0; i < nregidx; i++) {
start = ISA_REG_PHYS(®s[regidx[i]]);
end = start + regs[regidx[i]].size - 1;
rtype = ofw_isa_range_map(isab_ranges,
isab_nrange, &start, &end, NULL);
rid = 0;
while (resource_list_find(rl, rtype,
rid) != NULL)
rid++;
bus_set_resource(cdev, rtype, rid,
start, end - start + 1);
}
}
if (regidx != NULL)
free(regidx, M_OFWPROP);
}
if (regs != NULL)
free(regs, M_OFWPROP);
nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intrs),
(void **)&intrs);
for (i = 0; i < nintr; i++) {
if (intrs[i] > 7)
panic("isa_setup_children: intr too large");
rintr = ofw_isa_route_intr(device_get_parent(dev), node,
&isa_iinfo, intrs[i]);
if (rintr == PCI_INVALID_IRQ) {
device_printf(dev, "could not map ISA "
"interrupt %d for node 0x%lx: %s\n",
intrs[i], (unsigned long)node, name);
continue;
}
bus_set_resource(cdev, SYS_RES_IRQ, i, rintr, 1);
}
if (intrs != NULL)
free(intrs, M_OFWPROP);
ndrq = OF_getprop_alloc(node, "dma-channel", sizeof(*drqs),
(void **)&drqs);
for (i = 0; i < ndrq; i++)
bus_set_resource(cdev, SYS_RES_DRQ, i, drqs[i], 1);
if (drqs != NULL)
free(drqs, M_OFWPROP);
/*
* Devices using DMA hang off of the `dma' node instead of
* directly from the ISA bridge node.
*/
if (strcmp(name, "dma") == 0)
isa_setup_children(dev, node);
free(name, M_OFWPROP);
}
}
