mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-09-05 22:31:56 +00:00
2975ca0754
The API name space for Bluetooth is bt_* and BT_* so it makes sense to align the Kconfig name space with this. The additional benefit is that this also makes the names shorter. It is also in line with what Linux uses for Bluetooth Kconfig entries. Some Bluetooth-related Networking Kconfig defines are renamed as well in order to be consistent, such as NET_L2_BLUETOOTH. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
/* uuid.c - Bluetooth UUID handling */
|
|
|
|
/*
|
|
* Copyright (c) 2015-2016 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <misc/byteorder.h>
|
|
#include <misc/printk.h>
|
|
|
|
#include <bluetooth/uuid.h>
|
|
|
|
#define UUID_16_BASE_OFFSET 12
|
|
|
|
/* TODO: Decide whether to continue using BLE format or switch to RFC 4122 */
|
|
|
|
/* Base UUID : 0000[0000]-0000-1000-8000-00805F9B34FB ->
|
|
* { 0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80,
|
|
* 0x00, 0x10, 0x00, 0x00, [0x00, 0x00], 0x00, 0x00 }
|
|
* 0x2800 : 0000[2800]-0000-1000-8000-00805F9B34FB ->
|
|
* { 0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80,
|
|
* 0x00, 0x10, 0x00, 0x00, [0x00, 0x28], 0x00, 0x00 }
|
|
* little endian 0x2800 : [00 28] -> no swapping required
|
|
* big endian 0x2800 : [28 00] -> swapping required
|
|
*/
|
|
static const struct bt_uuid_128 uuid128_base = {
|
|
.uuid.type = BT_UUID_TYPE_128,
|
|
.val = { 0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80,
|
|
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
|
|
};
|
|
|
|
static void uuid_to_uuid128(const struct bt_uuid *src, struct bt_uuid_128 *dst)
|
|
{
|
|
switch (src->type) {
|
|
case BT_UUID_TYPE_16:
|
|
*dst = uuid128_base;
|
|
sys_put_le16(BT_UUID_16(src)->val,
|
|
&dst->val[UUID_16_BASE_OFFSET]);
|
|
return;
|
|
case BT_UUID_TYPE_32:
|
|
*dst = uuid128_base;
|
|
sys_put_le32(BT_UUID_32(src)->val,
|
|
&dst->val[UUID_16_BASE_OFFSET]);
|
|
return;
|
|
case BT_UUID_TYPE_128:
|
|
memcpy(dst, src, sizeof(*dst));
|
|
return;
|
|
}
|
|
}
|
|
|
|
static int uuid128_cmp(const struct bt_uuid *u1, const struct bt_uuid *u2)
|
|
{
|
|
struct bt_uuid_128 uuid1, uuid2;
|
|
|
|
uuid_to_uuid128(u1, &uuid1);
|
|
uuid_to_uuid128(u2, &uuid2);
|
|
|
|
return memcmp(uuid1.val, uuid2.val, 16);
|
|
}
|
|
|
|
int bt_uuid_cmp(const struct bt_uuid *u1, const struct bt_uuid *u2)
|
|
{
|
|
/* Convert to 128 bit if types don't match */
|
|
if (u1->type != u2->type)
|
|
return uuid128_cmp(u1, u2);
|
|
|
|
switch (u1->type) {
|
|
case BT_UUID_TYPE_16:
|
|
return (int)BT_UUID_16(u1)->val - (int)BT_UUID_16(u2)->val;
|
|
case BT_UUID_TYPE_32:
|
|
return (int)BT_UUID_32(u1)->val - (int)BT_UUID_32(u2)->val;
|
|
case BT_UUID_TYPE_128:
|
|
return memcmp(BT_UUID_128(u1)->val, BT_UUID_128(u2)->val, 16);
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
#if defined(CONFIG_BT_DEBUG)
|
|
void bt_uuid_to_str(const struct bt_uuid *uuid, char *str, size_t len)
|
|
{
|
|
u32_t tmp1, tmp5;
|
|
u16_t tmp0, tmp2, tmp3, tmp4;
|
|
|
|
switch (uuid->type) {
|
|
case BT_UUID_TYPE_16:
|
|
snprintk(str, len, "%04x", BT_UUID_16(uuid)->val);
|
|
break;
|
|
case BT_UUID_TYPE_32:
|
|
snprintk(str, len, "%04x", BT_UUID_32(uuid)->val);
|
|
break;
|
|
case BT_UUID_TYPE_128:
|
|
memcpy(&tmp0, &BT_UUID_128(uuid)->val[0], sizeof(tmp0));
|
|
memcpy(&tmp1, &BT_UUID_128(uuid)->val[2], sizeof(tmp1));
|
|
memcpy(&tmp2, &BT_UUID_128(uuid)->val[6], sizeof(tmp2));
|
|
memcpy(&tmp3, &BT_UUID_128(uuid)->val[8], sizeof(tmp3));
|
|
memcpy(&tmp4, &BT_UUID_128(uuid)->val[10], sizeof(tmp4));
|
|
memcpy(&tmp5, &BT_UUID_128(uuid)->val[12], sizeof(tmp5));
|
|
|
|
snprintk(str, len, "%08x-%04x-%04x-%04x-%08x%04x",
|
|
tmp5, tmp4, tmp3, tmp2, tmp1, tmp0);
|
|
break;
|
|
default:
|
|
memset(str, 0, len);
|
|
return;
|
|
}
|
|
}
|
|
|
|
const char *bt_uuid_str(const struct bt_uuid *uuid)
|
|
{
|
|
static char str[37];
|
|
|
|
bt_uuid_to_str(uuid, str, sizeof(str));
|
|
|
|
return str;
|
|
}
|
|
#endif /* CONFIG_BT_DEBUG */
|