1 // SPDX-License-Identifier: GPL-2.0
4 void pack_hdmi_infoframe(struct packed_hdmi_infoframe *packed_frame,
5 u8 *raw_frame, ssize_t len)
11 u32 subpack1_high = 0;
15 * "When in doubt, use brute force."
20 * We presume that no valid frame is longer than 17
21 * octets, including header... And truncate to that
25 subpack1_high = (raw_frame[16] << 16);
27 subpack1_high |= (raw_frame[15] << 8);
29 subpack1_high |= raw_frame[14];
31 subpack1_low = (raw_frame[13] << 24);
33 subpack1_low |= (raw_frame[12] << 16);
35 subpack1_low |= (raw_frame[11] << 8);
37 subpack1_low |= raw_frame[10];
39 subpack0_high = (raw_frame[9] << 16);
41 subpack0_high |= (raw_frame[8] << 8);
43 subpack0_high |= raw_frame[7];
45 subpack0_low = (raw_frame[6] << 24);
47 subpack0_low |= (raw_frame[5] << 16);
49 subpack0_low |= (raw_frame[4] << 8);
51 subpack0_low |= raw_frame[3];
53 header = (raw_frame[2] << 16);
55 header |= (raw_frame[1] << 8);
57 header |= raw_frame[0];
62 packed_frame->header = header;
63 packed_frame->subpack0_low = subpack0_low;
64 packed_frame->subpack0_high = subpack0_high;
65 packed_frame->subpack1_low = subpack1_low;
66 packed_frame->subpack1_high = subpack1_high;