Outline ![]()
Files ![]()
loading...
SourceVu![]()
ESP-IDF Framework and Examples![]()
ESP-IDF![]()
components/bt/host/bluedroid/btc/profile/std/gatt/btc_gatt_util.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "btc_gatt_util.h"
#define GATTC_READ_VALUE_TYPE_VALUE 0x0000 /* Attribute value itself */
#define GATTC_READ_VALUE_TYPE_AGG_FORMAT 0x2905 /* Characteristic Aggregate Format*/
static const unsigned char BASE_UUID[16] = {
0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80,
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
/*******************************************************************************
* BTIF -> BTA conversion functions
*******************************************************************************/
int uuidType(unsigned char *p_uuid)
{
int i = 0;
int match = 0;
int all_zero = 1;
for (i = 0; i != 16; ++i) {
if (i == 12 || i == 13) {
continue;
}
if (p_uuid[i] == BASE_UUID[i]) {
++match;
}
if (p_uuid[i] != 0) {
all_zero = 0;
}
}
if (all_zero) {
return 0;
}
if (match == 12) {
return LEN_UUID_32;
}
if (match == 14) {
return LEN_UUID_16;
}
return LEN_UUID_128;
}
void btc128_to_bta_uuid(tBT_UUID *p_dest, uint8_t *p_src)
{
int i = 0;
p_dest->len = uuidType(p_src);
switch (p_dest->len) {
case LEN_UUID_16:
p_dest->uu.uuid16 = (p_src[13] << 8) + p_src[12];
break;
case LEN_UUID_32:
p_dest->uu.uuid32 = (p_src[13] << 8) + p_src[12];
p_dest->uu.uuid32 += (p_src[15] << 24) + (p_src[14] << 16);
break;
case LEN_UUID_128:
for (i = 0; i != 16; ++i) {
p_dest->uu.uuid128[i] = p_src[i];
}
break;
default:
BTC_TRACE_ERROR("%s: Unknown UUID length %d!", __FUNCTION__, p_dest->len);
break;
}
}
/*******************************************************************************
* BTC -> BTA conversion functions
*******************************************************************************/
void btc_to_bta_gatt_id(tBTA_GATT_ID *p_dest, esp_gatt_id_t *p_src)
{
p_dest->inst_id = p_src->inst_id;
btc_to_bta_uuid(&p_dest->uuid, &p_src->uuid);
}
void btc_to_bta_srvc_id(tBTA_GATT_SRVC_ID *p_dest, esp_gatt_srvc_id_t *p_src)
{
p_dest->is_primary = p_src->is_primary;
btc_to_bta_gatt_id(&p_dest->id, &p_src->id);
}
/*******************************************************************************
* BTA -> BTC conversion functions
*******************************************************************************/
void bta_to_btc_gatt_id(esp_gatt_id_t *p_dest, tBTA_GATT_ID *p_src)
{
p_dest->inst_id = p_src->inst_id;
bta_to_btc_uuid(&p_dest->uuid, &p_src->uuid);
}
void bta_to_btc_srvc_id(esp_gatt_srvc_id_t *p_dest, tBTA_GATT_SRVC_ID *p_src)
{
p_dest->is_primary = p_src->is_primary;
bta_to_btc_gatt_id(&p_dest->id, &p_src->id);
}
void btc_to_bta_response(tBTA_GATTS_RSP *p_dest, esp_gatt_rsp_t *p_src)
{
p_dest->attr_value.auth_req = p_src->attr_value.auth_req;
p_dest->attr_value.handle = p_src->attr_value.handle;
p_dest->attr_value.len = p_src->attr_value.len;
p_dest->attr_value.offset = p_src->attr_value.offset;
memcpy(p_dest->attr_value.value, p_src->attr_value.value, ESP_GATT_MAX_ATTR_LEN);
}
uint16_t get_uuid16(tBT_UUID *p_uuid)
{
if (p_uuid->len == LEN_UUID_16) {
return p_uuid->uu.uuid16;
} else if (p_uuid->len == LEN_UUID_128) {
UINT16 u16;
UINT8 *p = &p_uuid->uu.uuid128[LEN_UUID_128 - 4];
STREAM_TO_UINT16(u16, p);
return u16;
} else { /* p_uuid->len == LEN_UUID_32 */
return (UINT16) p_uuid->uu.uuid32;
}
}
uint16_t set_read_value(uint8_t *gattc_if, esp_ble_gattc_cb_param_t *p_dest, tBTA_GATTC_READ *p_src)
{
uint16_t len = 0;
p_dest->read.status = p_src->status;
p_dest->read.conn_id = BTC_GATT_GET_CONN_ID(p_src->conn_id);
*gattc_if = BTC_GATT_GET_GATT_IF(p_src->conn_id);
p_dest->read.status = p_src->status;
p_dest->read.handle = p_src->handle;
if (( p_src->status == BTA_GATT_OK ) && (p_src->p_value != NULL))
{
BTC_TRACE_DEBUG("%s len = %d ", __func__, p_src->p_value->len);
p_dest->read.value_len = p_src->p_value->len;
if ( p_src->p_value->len > 0 && p_src->p_value->p_value != NULL ) {
p_dest->read.value = p_src->p_value->p_value;
}
len += p_src->p_value->len;
} else {
p_dest->read.value_len = 0;
}
return len;
}
Details ![]()
Show: from Types: Columns: ![]( "Show Project Names")
![]( "Show Locations")
![]( "Show Referring Symbols")
![]( "Show Scope")
This file uses the notable symbols shown below. Click anywhere in the file to view more details.