mirror of
https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-06-02 03:16:07 +02:00
889a1db801
Co-authored-by: vladkorotnev <vladkorotnev@noreply.codeberg.org> Co-committed-by: vladkorotnev <vladkorotnev@noreply.codeberg.org>
94 lines
3.9 KiB
Java
94 lines
3.9 KiB
Java
/*
|
|
* Copyright (C) 2023 akasaka / Genjitsu Labs
|
|
*
|
|
* This file is part of Gadgetbridge.
|
|
*
|
|
* Gadgetbridge is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published
|
|
* by the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* Gadgetbridge is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
package nodomain.freeyourgadget.gadgetbridge.service.devices.sony.wena3.protocol.logic;
|
|
|
|
|
|
public class ActivityPacketCrc {
|
|
private static final int CRC_INITIAL_VALUE = 65535;
|
|
private static final int[] CRC_TABLE = new int[] {
|
|
0x0000, 0x8005, 0x800f, 0x000a, 0x801b,
|
|
0x001e, 0x0014, 0x8011, 0x8033, 0x0036,
|
|
0x003c, 0x8039, 0x0028, 0x802d, 0x8027,
|
|
0x0022, 0x8063, 0x0066, 0x006c, 0x8069,
|
|
0x0078, 0x807d, 0x8077, 0x0072, 0x0050,
|
|
0x8055, 0x805f, 0x005a, 0x804b, 0x004e,
|
|
0x0044, 0x8041, 0x80c3, 0x00c6, 0x00cc,
|
|
0x80c9, 0x00d8, 0x80dd, 0x80d7, 0x00d2,
|
|
0x00f0, 0x80f5, 0x80ff, 0x00fa, 0x80eb,
|
|
0x00ee, 0x00e4, 0x80e1, 0x00a0, 0x80a5,
|
|
0x80af, 0x00aa, 0x80bb, 0x00be, 0x00b4,
|
|
0x80b1, 0x8093, 0x0096, 0x009c, 0x8099,
|
|
0x0088, 0x808d, 0x8087, 0x0082, 0x8183,
|
|
0x0186, 0x018c, 0x8189, 0x0198, 0x819d,
|
|
0x8197, 0x0192, 0x01b0, 0x81b5, 0x81bf,
|
|
0x01ba, 0x81ab, 0x01ae, 0x01a4, 0x81a1,
|
|
0x01e0, 0x81e5, 0x81ef, 0x01ea, 0x81fb,
|
|
0x01fe, 0x01f4, 0x81f1, 0x81d3, 0x01d6,
|
|
0x01dc, 0x81d9, 0x01c8, 0x81cd, 0x81c7,
|
|
0x01c2, 0x0140, 0x8145, 0x814f, 0x014a,
|
|
0x815b, 0x015e, 0x0154, 0x8151, 0x8173,
|
|
0x0176, 0x017c, 0x8179, 0x0168, 0x816d,
|
|
0x8167, 0x0162, 0x8123, 0x0126, 0x012c,
|
|
0x8129, 0x0138, 0x813d, 0x8137, 0x0132,
|
|
0x0110, 0x8115, 0x811f, 0x011a, 0x810b,
|
|
0x010e, 0x0104, 0x8101, 0x8303, 0x0306,
|
|
0x030c, 0x8309, 0x0318, 0x831d, 0x8317,
|
|
0x0312, 0x0330, 0x8335, 0x833f, 0x033a,
|
|
0x832b, 0x032e, 0x0324, 0x8321, 0x0360,
|
|
0x8365, 0x836f, 0x036a, 0x837b, 0x037e,
|
|
0x0374, 0x8371, 0x8353, 0x0356, 0x035c,
|
|
0x8359, 0x0348, 0x834d, 0x8347, 0x0342,
|
|
0x03c0, 0x83c5, 0x83cf, 0x03ca, 0x83db,
|
|
0x03de, 0x03d4, 0x83d1, 0x83f3, 0x03f6,
|
|
0x03fc, 0x83f9, 0x03e8, 0x83ed, 0x83e7,
|
|
0x03e2, 0x83a3, 0x03a6, 0x03ac, 0x83a9,
|
|
0x03b8, 0x83bd, 0x83b7, 0x03b2, 0x0390,
|
|
0x8395, 0x839f, 0x039a, 0x838b, 0x038e,
|
|
0x0384, 0x8381, 0x0280, 0x8285, 0x828f,
|
|
0x028a, 0x829b, 0x029e, 0x0294, 0x8291,
|
|
0x82b3, 0x02b6, 0x02bc, 0x82b9, 0x02a8,
|
|
0x82ad, 0x82a7, 0x02a2, 0x82e3, 0x02e6,
|
|
0x02ec, 0x82e9, 0x02f8, 0x82fd, 0x82f7,
|
|
0x02f2, 0x02d0, 0x82d5, 0x82df, 0x02da,
|
|
0x82cb, 0x02ce, 0x02c4, 0x82c1, 0x8243,
|
|
0x0246, 0x024c, 0x8249, 0x0258, 0x825d,
|
|
0x8257, 0x0252, 0x0270, 0x8275, 0x827f,
|
|
0x027a, 0x826b, 0x026e, 0x0264, 0x8261,
|
|
0x0220, 0x8225, 0x822f, 0x022a, 0x823b,
|
|
0x023e, 0x0234, 0x8231, 0x8213, 0x0216,
|
|
0x021c, 0x8219, 0x0208, 0x820d, 0x8207,
|
|
0x0202
|
|
};
|
|
|
|
private int result = CRC_INITIAL_VALUE;
|
|
|
|
public void next(byte i) {
|
|
result = CRC_TABLE[((i & 255) ^ (result >>> 8))] ^ ((result << 8) & 65535);
|
|
}
|
|
|
|
public void next(byte[] b) {
|
|
for(byte v: b) next(v);
|
|
}
|
|
|
|
public int getResult() {
|
|
return result;
|
|
}
|
|
}
|