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wip: edid: encode basic params and features

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Signed-off-by: Simon Ser <contact@emersion.fr>
This commit is contained in:
Simon Ser 2023-04-28 12:20:29 +02:00
parent c9f7dc203f
commit cc14df1c08
1 changed files with 30 additions and 0 deletions
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30
edid.c
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@ -1764,6 +1764,33 @@ encode_vendor_product(const struct di_edid_vendor_product *vendor_product,
return true;
}
static bool
encode_basic_params_features(const struct di_edid *edid,
uint8_t data[static EDID_BLOCK_SIZE])
{
const struct di_edid_video_input_digital *digital = &edid->video_input_digital;
const struct di_edid_screen_size *screen_size = &edid->screen_size;
set_bit(&data[0x14], 7, edid->is_digital);
if (edid->is_digital) {
if (digital->color_bit_depth != 0) {
if (digital->color_bit_depth % 2 != 0 ||
digital->color_bit_depth < 6 ||
digital->color_bit_depth > 16) {
return false;
}
set_bit_range(&data[0x14], 6, 4, (uint8_t)((digital->color_bit_depth - 4) / 2));
}
set_bit_range(&data[0x14], 3, 0, digital->interface);
} else {
return false; /* TODO */
}
return true;
}
ssize_t
di_edid_format(const struct di_edid *edid, void *buf, size_t buf_size)
{
@ -1787,6 +1814,9 @@ di_edid_format(const struct di_edid *edid, void *buf, size_t buf_size)
if (!encode_vendor_product(&edid->vendor_product, data)) {
return -1;
}
if (!encode_basic_params_features(edid, data)) {
return -1;
}
/* TODO */