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/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-11-26 GuEe-GUI first version
*/
#include "can_dm.h"
static const rt_uint8_t dlc2len[] =
{
0, 1, 2, 3, 4, 5, 6, 7, 8, 12, 16, 20, 24, 32, 48, 64
};
rt_uint8_t can_dlc2len(rt_uint8_t can_dlc)
{
return dlc2len[can_dlc & 0x0F];
}
static const rt_uint8_t len2dlc[] =
{
0, 1, 2, 3, 4, 5, 6, 7, 8, /* 0 - 8 */
9, 9, 9, 9, /* 9 - 12 */
10, 10, 10, 10, /* 13 - 16 */
11, 11, 11, 11, /* 17 - 20 */
12, 12, 12, 12, /* 21 - 24 */
13, 13, 13, 13, 13, 13, 13, 13, /* 25 - 32 */
14, 14, 14, 14, 14, 14, 14, 14, /* 33 - 40 */
14, 14, 14, 14, 14, 14, 14, 14, /* 41 - 48 */
15, 15, 15, 15, 15, 15, 15, 15, /* 49 - 56 */
15, 15, 15, 15, 15, 15, 15, 15, /* 57 - 64 */
};
rt_uint8_t can_len2dlc(rt_uint8_t len)
{
if (len <= 64)
{
return len2dlc[len];
}
return 0xf;
}
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