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Rev 3674 Rev 4337
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{
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{
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    unsigned int ac = ofw_get_address_cells(ofw_memory) /
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    unsigned int ac = ofw_get_address_cells(ofw_memory) /
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        (sizeof(uintptr_t) / sizeof(uint32_t));
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        (sizeof(uintptr_t) / sizeof(uint32_t));
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    unsigned int sc = ofw_get_size_cells(ofw_memory) /
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    unsigned int sc = ofw_get_size_cells(ofw_memory) /
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        (sizeof(uintptr_t) / sizeof(uint32_t));
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        (sizeof(uintptr_t) / sizeof(uint32_t));
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    printf("address cells: %d, size cells: %d. ", ac, sc);
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    uintptr_t buf[((ac + sc) * MEMMAP_MAX_RECORDS)];
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    uintptr_t buf[((ac + sc) * MEMMAP_MAX_RECORDS)];
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    int ret = ofw_get_property(ofw_memory, "reg", buf, sizeof(buf));
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    int ret = ofw_get_property(ofw_memory, "reg", buf, sizeof(buf));
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    if (ret <= 0)       /* ret is the number of written bytes */
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    if (ret <= 0)       /* ret is the number of written bytes */
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        return false;
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        return false;
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        return false;
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        return false;
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    return true;
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    return true;
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}
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}
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/**
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 * Sets up the palette for the 8-bit color depth configuration so that the
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 * 3:2:3 color scheme can be used. Checks that setting the palette makes sense
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 * (appropriate nodes exist in the OBP tree and the color depth is not greater
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 * than 8).
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 *
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 * @return  true if the palette has been set, false otherwise
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 */
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int setup_palette(void)
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{
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    char device_name[BUF_SIZE];
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    /* resolve alias */
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    if (ofw_get_property(ofw_aliases, "screen", device_name,
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        sizeof(device_name)) <= 0)
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        return false;
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    /* for depth greater than 8 it makes no sense to set up the palette */
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    uint32_t depth;
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    phandle device = ofw_find_device(device_name);
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    if (device == -1)
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        return false;
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    if (ofw_get_property(device, "depth", &depth, sizeof(uint32_t)) <= 0)
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        return false;
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    if (depth != 8)
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        return false;
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    /* required in order to be able to make a method call */
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    ihandle screen = ofw_open(device_name);
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    if (screen == -1)
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        return false;
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    /* setup the palette so that the (inverted) 3:2:3 scheme is usable */
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    unsigned int i;
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    for (i = 0; i < 256; i++)
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        if (ofw_call("call-method", 6, 1, NULL, "color!", screen,
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            255 - i,
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            i << 5,
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            (i >> 3) << 6,
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            (i >> 5) << 5) != 0);
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    return true;
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}
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void ofw_quiesce(void)
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void ofw_quiesce(void)
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{
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{
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    ofw_call("quiesce", 0, 0, NULL);
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    ofw_call("quiesce", 0, 0, NULL);
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}
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}