bool
nv_lockvgac(void *obj, bool lock)
{
bool locked = !nv_rdvgac(obj, 0, 0x1f);
u8 data = lock ? 0x99 : 0x57;
nv_wrvgac(obj, 0, 0x1f, data);
if (nv_device(obj)->chipset == 0x11) {
if (!(nv_rd32(obj, 0x001084) & 0x10000000))
nv_wrvgac(obj, 1, 0x1f, data);
}
return locked;
}
void
nv_wrvgai(void *obj, int head, u16 port, u8 index, u8 value)
{
if (port == 0x03c4) nv_wrvgas(obj, head, index, value);
else if (port == 0x03ce) nv_wrvgag(obj, head, index, value);
else if (port == 0x03d4) nv_wrvgac(obj, head, index, value);
else nv_error(obj, "unknown indexed vga port 0x%04x\n", port);
}
bool
nv_lockvgac(void *obj, bool lock)
{
struct nouveau_device *dev = nv_device(obj);
bool locked = !nv_rdvgac(obj, 0, 0x1f);
u8 data = lock ? 0x99 : 0x57;
if (dev->card_type < NV_50)
nv_wrvgac(obj, 0, 0x1f, data);
else
nv_wrvgac(obj, 0, 0x3f, data);
if (dev->chipset == 0x11) {
if (!(nv_rd32(obj, 0x001084) & 0x10000000))
nv_wrvgac(obj, 1, 0x1f, data);
}
return locked;
}
void
nv_wrvgaowner(void *obj, u8 select)
{
if (nv_device(obj)->card_type < NV_50) {
u8 owner = (select == 1) ? 3 : select;
if (nv_device(obj)->chipset == 0x11) {
/* workaround hw lockup bug */
nv_rdvgac(obj, 0, 0x1f);
nv_rdvgac(obj, 1, 0x1f);
}
nv_wrvgac(obj, 0, 0x44, owner);
if (nv_device(obj)->chipset == 0x11) {
nv_wrvgac(obj, 0, 0x2e, owner);
nv_wrvgac(obj, 0, 0x2e, owner);
}
} else
nv_error(obj, "wrvgaowner after nv4x\n");
}