373,7 → 373,49 |
return true; |
} |
|
/** |
* Sets up the palette for the 8-bit color depth configuration so that the |
* 3:2:3 color scheme can be used. Checks that setting the palette makes sense |
* (appropriate nodes exist in the OBP tree and the color depth is not greater |
* than 8). |
* |
* @return true if the palette has been set, false otherwise |
*/ |
int setup_palette(void) |
{ |
char device_name[BUF_SIZE]; |
|
/* resolve alias */ |
if (ofw_get_property(ofw_aliases, "screen", device_name, |
sizeof(device_name)) <= 0) |
return false; |
|
/* for depth greater than 8 it makes no sense to set up the palette */ |
uint32_t depth; |
phandle device = ofw_find_device(device_name); |
if (device == -1) |
return false; |
if (ofw_get_property(device, "depth", &depth, sizeof(uint32_t)) <= 0) |
return false; |
if (depth != 8) |
return false; |
|
/* required in order to be able to make a method call */ |
ihandle screen = ofw_open(device_name); |
if (screen == -1) |
return false; |
|
/* setup the palette so that the 3:2:3 scheme is usable */ |
unsigned int i; |
for (i = 0; i < 256; i++) |
if (ofw_call("call-method", 6, 1, NULL, "color!", screen, |
i, |
i << 5, |
(i >> 3) << 6, |
(i >> 5) << 5) != 0); |
return true; |
} |
|
void ofw_quiesce(void) |
{ |
ofw_call("quiesce", 0, 0, NULL); |