int
sti_attach_common(struct sti_softc *sc, bus_space_tag_t iot,
bus_space_tag_t memt, bus_space_handle_t romh, u_int codebase)
{
struct sti_rom *rom;
int rc;
rom = (struct sti_rom *)malloc(sizeof(*rom), M_DEVBUF,
M_NOWAIT | M_ZERO);
if (rom == NULL) {
aprint_error("cannot allocate rom data\n");
return ENOMEM;
}
rom->rom_softc = sc;
rc = sti_rom_setup(rom, iot, memt, romh, sc->bases, codebase);
if (rc != 0) {
free(rom, M_DEVBUF);
return rc;
}
sc->sc_rom = rom;
sti_describe(sc);
sc->sc_scr = sti_attach_screen(sc,
sc->sc_flags & STI_CONSOLE ? 0 : STI_CLEARSCR);
if (sc->sc_scr == NULL)
rc = ENOMEM;
return rc;
}
static void
sti_sgc_attach(device_t parent, device_t self, void *aux)
{
struct sti_softc *sc = device_private(self);
struct sgc_attach_args *saa = aux;
bus_space_handle_t romh;
bus_addr_t base;
u_int romend;
int i;
sc->sc_dev = self;
if (saa->saa_slot == sticonslot) {
sc->sc_flags |= STI_CONSOLE | STI_ATTACHED;
sc->sc_rom = &sticn_rom;
sc->sc_scr = &sticn_scr;
memcpy(sc->bases, sticn_bases, sizeof(sc->bases));
sti_describe(sc);
} else {
base = (bus_addr_t)sgc_slottopa(saa->saa_slot);
if (bus_space_map(saa->saa_iot, base, PAGE_SIZE, 0, &romh)) {
aprint_error(": can't map ROM");
return;
}
/*
* Compute real PROM size
*/
romend = sti_rom_size(saa->saa_iot, romh);
bus_space_unmap(saa->saa_iot, romh, PAGE_SIZE);
if (bus_space_map(saa->saa_iot, base, romend, 0, &romh)) {
aprint_error(": can't map frame buffer");
return;
}
sc->bases[0] = romh;
for (i = 0; i < STI_REGION_MAX; i++)
sc->bases[i] = base;
if (sti_attach_common(sc, saa->saa_iot, saa->saa_iot, romh,
STI_CODEBASE_ALT) != 0)
return;
}
/*
* Note on 425e sti(4) framebuffer bitmap memory can be accessed at
* (sgc_slottopa(saa->saa_slot) + 0x200000)
* but the mmap function to map bitmap display is not provided yet.
*/
sti_end_attach(sc);
}
void
sti_sgc_attach(struct device *parent, struct device *self, void *aux)
{
struct sti_softc *sc = (void *)self;
struct sgc_attach_args *saa = aux;
bus_addr_t base;
bus_space_handle_t ioh;
u_int romend;
int i;
/*
* If we already probed it succesfully as a console device, go ahead,
* since we will not be able to bus_space_map() again.
*/
if (SGC_SLOT_TO_CONSCODE(saa->saa_slot) == conscode) {
sc->sc_flags |= STI_CONSOLE | STI_ATTACHED;
sc->sc_scr = &stifb_cn;
bcopy(stifb_cn_bases, sc->bases, sizeof(sc->bases));
sti_describe(sc);
} else {
base = (bus_addr_t)sgc_slottopa(saa->saa_slot);
if (bus_space_map(saa->saa_iot, base, PAGE_SIZE, 0, &ioh)) {
printf(": can't map frame buffer");
return;
}
/*
* Compute real PROM size
*/
romend = sti_rom_size(saa->saa_iot, ioh);
bus_space_unmap(saa->saa_iot, ioh, PAGE_SIZE);
if (bus_space_map(saa->saa_iot, base, romend, 0, &ioh)) {
printf(": can't map frame buffer");
return;
}
sc->memt = sc->iot = saa->saa_iot;
sc->romh = ioh;
sc->bases[0] = sc->romh;
for (i = 1; i < STI_REGION_MAX; i++)
sc->bases[i] = base;
if (sti_attach_common(sc, STI_CODEBASE_M68K) != 0)
return;
}
sti_end_attach(sc);
}