1
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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
70
71
78
79
86
87
88
89
90
91
92
95
98
101
104
107
110
113
116
119
123
124
125
126
127
128
140
141
142
154
155
156
168
169
170
171
172
192
193
194
198
199
200
201
202
203
204
205
216
217
218
219
220
221
222
223
224
225
229
230
234
235
236
237
238
239
240
241
252
253
254
255
256
257
258
259
260
261
265
266
270
271
272
273
274
275
276
277
288
289
290
291
292
293
294
295
296
297
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
330
341
342
343
344
345
346
349
355
356
357
360
366
367
368
371
376
377
378
379
393
394
395
396
397
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
419
420
421
422
423
424
425
428
429
430
431
432
433
434
435
441
442
446
447
448
449
450
451
452
455
456
457
460
461
462
463
464
465
466
467
468
469
470
471
483
494
495
498
499
500
505
506
507
508
509
510
511
512
513
514
515
518
519
520
521
522
523
524
525
529
530
534
535
536
537
538
542
543
544
548
549
550
551
560
561
562
563
564
565
566
567
568
569
570
573
606
621
625
631
638
645
652
655
656
657
658
659
669
670
671
672
673
674
675
676
677
678
679
680
681
682
686
687
688
692
693
694
695
696
697
698
699
700
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
734
735
739
740
744
745
749
750
754
755
759
760
764
765
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
790
791
792
793
794
795
796
797
798
799
800
804
805
809
810
811
815
816
817
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
838
839
840
841
842
843
844
845
846
847
848
852
853
862
863
864
865
866
867
868
869
870
871
872
873
882
887
894
898
904
909
910
911
912
913
914
915
916
917
918
919
920
921
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
950
951
952
953
954
955
956
959
960
961
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1010
1011
1014
1015
1016
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1049
1057
1058
1062
1063
1064
1068
1069
1070
1071
1072
1073
1074
1078
1079
1080
1084
1085
1092
1093
1100
1101
1102
1103
1104
1105
1106
1107
1111
1112
1116
1117
1118
1122
1123
1124
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1149
1150
1151
1157
1158
1164
1165
1166
1167
1173
1174
1175
1176
1184
1185
1186
1187
1188
1189
1190
/* ... */
#include <string.h>
#include <stdbool.h>
#include <inttypes.h>
#include "sdkconfig.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "esp_hid_gap.h"8 includes
#if CONFIG_BT_BLUEDROID_ENABLED
#include "esp_bt_device.h"
#endif
#if CONFIG_BT_NIMBLE_ENABLED
#include "host/ble_hs.h"
#include "nimble/nimble_port.h"
#include "host/ble_gap.h"
#include "host/ble_hs_adv.h"
#include "nimble/ble.h"
#include "host/ble_sm.h"6 includes
#define BLE_HID_SVC_UUID 0x1812 /* ... */
#else
#include "esp_bt_device.h"
#endif
static const char *TAG = "ESP_HID_GAP";
#define GAP_DBG_PRINTF(...) printf(__VA_ARGS__)
#if CONFIG_BT_HID_HOST_ENABLED
static const char * gap_bt_prop_type_names[5] = {"","BDNAME","COD","RSSI","EIR"};
#endif
static esp_hid_scan_result_t *bt_scan_results = NULL;
static size_t num_bt_scan_results = 0;
static esp_hid_scan_result_t *ble_scan_results = NULL;
static size_t num_ble_scan_results = 0;
static SemaphoreHandle_t bt_hidh_cb_semaphore = NULL;
#define WAIT_BT_CB() xSemaphoreTake(bt_hidh_cb_semaphore, portMAX_DELAY)
#define SEND_BT_CB() xSemaphoreGive(bt_hidh_cb_semaphore)
static SemaphoreHandle_t ble_hidh_cb_semaphore = NULL;
#define WAIT_BLE_CB() xSemaphoreTake(ble_hidh_cb_semaphore, portMAX_DELAY)
#define SEND_BLE_CB() xSemaphoreGive(ble_hidh_cb_semaphore)
#define SIZEOF_ARRAY(a) (sizeof(a)/sizeof(*a))
#if !CONFIG_BT_NIMBLE_ENABLED
static const char *ble_gap_evt_names[] = { "ADV_DATA_SET_COMPLETE", "SCAN_RSP_DATA_SET_COMPLETE", "SCAN_PARAM_SET_COMPLETE", "SCAN_RESULT", "ADV_DATA_RAW_SET_COMPLETE", "SCAN_RSP_DATA_RAW_SET_COMPLETE", "ADV_START_COMPLETE", "SCAN_START_COMPLETE", "AUTH_CMPL", "KEY", "SEC_REQ", "PASSKEY_NOTIF", "PASSKEY_REQ", "OOB_REQ", "LOCAL_IR", "LOCAL_ER", "NC_REQ", "ADV_STOP_COMPLETE", "SCAN_STOP_COMPLETE", "SET_STATIC_RAND_ADDR", "UPDATE_CONN_PARAMS", "SET_PKT_LENGTH_COMPLETE", "SET_LOCAL_PRIVACY_COMPLETE", "REMOVE_BOND_DEV_COMPLETE", "CLEAR_BOND_DEV_COMPLETE", "GET_BOND_DEV_COMPLETE", "READ_RSSI_COMPLETE", "UPDATE_WHITELIST_COMPLETE"};
static const char *bt_gap_evt_names[] = { "DISC_RES", "DISC_STATE_CHANGED", "RMT_SRVCS", "RMT_SRVC_REC", "AUTH_CMPL", "PIN_REQ", "CFM_REQ", "KEY_NOTIF", "KEY_REQ", "READ_RSSI_DELTA"};
static const char *ble_addr_type_names[] = {"PUBLIC", "RANDOM", "RPA_PUBLIC", "RPA_RANDOM"};
const char *ble_addr_type_str(esp_ble_addr_type_t ble_addr_type)
{
if (ble_addr_type > BLE_ADDR_TYPE_RPA_RANDOM) {
return "UNKNOWN";
}{...}
return ble_addr_type_names[ble_addr_type];
}{...}
const char *ble_gap_evt_str(uint8_t event)
{
if (event >= SIZEOF_ARRAY(ble_gap_evt_names)) {
return "UNKNOWN";
}{...}
return ble_gap_evt_names[event];
}{...}
const char *bt_gap_evt_str(uint8_t event)
{
if (event >= SIZEOF_ARRAY(bt_gap_evt_names)) {
return "UNKNOWN";
}{...}
return bt_gap_evt_names[event];
}{...}
/* ... */#endif
#if CONFIG_BT_BLE_ENABLED
const char *esp_ble_key_type_str(esp_ble_key_type_t key_type)
{
const char *key_str = NULL;
switch (key_type) {
case ESP_LE_KEY_NONE:
key_str = "ESP_LE_KEY_NONE";
break;...
case ESP_LE_KEY_PENC:
key_str = "ESP_LE_KEY_PENC";
break;...
case ESP_LE_KEY_PID:
key_str = "ESP_LE_KEY_PID";
break;...
case ESP_LE_KEY_PCSRK:
key_str = "ESP_LE_KEY_PCSRK";
break;...
case ESP_LE_KEY_PLK:
key_str = "ESP_LE_KEY_PLK";
break;...
case ESP_LE_KEY_LLK:
key_str = "ESP_LE_KEY_LLK";
break;...
case ESP_LE_KEY_LENC:
key_str = "ESP_LE_KEY_LENC";
break;...
case ESP_LE_KEY_LID:
key_str = "ESP_LE_KEY_LID";
break;...
case ESP_LE_KEY_LCSRK:
key_str = "ESP_LE_KEY_LCSRK";
break;...
default:
key_str = "INVALID BLE KEY TYPE";
break;
...
}{...}
return key_str;
}{...}
/* ... */#endif
void esp_hid_scan_results_free(esp_hid_scan_result_t *results)
{
esp_hid_scan_result_t *r = NULL;
while (results) {
r = results;
results = results->next;
if (r->name != NULL) {
free((char *)r->name);
}{...}
free(r);
}{...}
}{...}
#if (CONFIG_BT_HID_HOST_ENABLED || CONFIG_BT_BLE_ENABLED)
static esp_hid_scan_result_t *find_scan_result(esp_bd_addr_t bda, esp_hid_scan_result_t *results)
{
esp_hid_scan_result_t *r = results;
while (r) {
if (memcmp(bda, r->bda, sizeof(esp_bd_addr_t)) == 0) {
return r;
}{...}
r = r->next;
}{...}
return NULL;
}{...}
/* ... */#endif
#if (CONFIG_BT_NIMBLE_ENABLED)
static esp_hid_scan_result_t *find_scan_result(const uint8_t *bda, esp_hid_scan_result_t *results)
{
esp_hid_scan_result_t *r = results;
while (r) {
if (memcmp(bda, r->bda, sizeof(r->bda)) == 0) {
return r;
}{...}
r = r->next;
}{...}
return NULL;
}{...}
/* ... */#endif
#if CONFIG_BT_HID_HOST_ENABLED
static void add_bt_scan_result(esp_bd_addr_t bda, esp_bt_cod_t *cod, esp_bt_uuid_t *uuid, uint8_t *name, uint8_t name_len, int rssi)
{
esp_hid_scan_result_t *r = find_scan_result(bda, bt_scan_results);
if (r) {
if (r->name == NULL && name && name_len) {
char *name_s = (char *)malloc(name_len + 1);
if (name_s == NULL) {
ESP_LOGE(TAG, "Malloc result name failed!");
return;
}{...}
memcpy(name_s, name, name_len);
name_s[name_len] = 0;
r->name = (const char *)name_s;
}{...}
if (r->bt.uuid.len == 0 && uuid->len) {
memcpy(&r->bt.uuid, uuid, sizeof(esp_bt_uuid_t));
}{...}
if (rssi != 0) {
r->rssi = rssi;
}{...}
return;
}{...}
r = (esp_hid_scan_result_t *)malloc(sizeof(esp_hid_scan_result_t));
if (r == NULL) {
ESP_LOGE(TAG, "Malloc bt_hidh_scan_result_t failed!");
return;
}{...}
r->transport = ESP_HID_TRANSPORT_BT;
memcpy(r->bda, bda, sizeof(esp_bd_addr_t));
memcpy(&r->bt.cod, cod, sizeof(esp_bt_cod_t));
memcpy(&r->bt.uuid, uuid, sizeof(esp_bt_uuid_t));
r->usage = esp_hid_usage_from_cod((uint32_t)cod);
r->rssi = rssi;
r->name = NULL;
if (name_len && name) {
char *name_s = (char *)malloc(name_len + 1);
if (name_s == NULL) {
free(r);
ESP_LOGE(TAG, "Malloc result name failed!");
return;
}{...}
memcpy(name_s, name, name_len);
name_s[name_len] = 0;
r->name = (const char *)name_s;
}{...}
r->next = bt_scan_results;
bt_scan_results = r;
num_bt_scan_results++;
}{...}
/* ... */#endif
#if CONFIG_BT_BLE_ENABLED
static void add_ble_scan_result(esp_bd_addr_t bda, esp_ble_addr_type_t addr_type, uint16_t appearance, uint8_t *name, uint8_t name_len, int rssi)
{
if (find_scan_result(bda, ble_scan_results)) {
ESP_LOGW(TAG, "Result already exists!");
return;
}{...}
esp_hid_scan_result_t *r = (esp_hid_scan_result_t *)malloc(sizeof(esp_hid_scan_result_t));
if (r == NULL) {
ESP_LOGE(TAG, "Malloc ble_hidh_scan_result_t failed!");
return;
}{...}
r->transport = ESP_HID_TRANSPORT_BLE;
memcpy(r->bda, bda, sizeof(esp_bd_addr_t));
r->ble.appearance = appearance;
r->ble.addr_type = addr_type;
r->usage = esp_hid_usage_from_appearance(appearance);
r->rssi = rssi;
r->name = NULL;
if (name_len && name) {
char *name_s = (char *)malloc(name_len + 1);
if (name_s == NULL) {
free(r);
ESP_LOGE(TAG, "Malloc result name failed!");
return;
}{...}
memcpy(name_s, name, name_len);
name_s[name_len] = 0;
r->name = (const char *)name_s;
}{...}
r->next = ble_scan_results;
ble_scan_results = r;
num_ble_scan_results++;
}{...}
/* ... */#endif
#if CONFIG_BT_NIMBLE_ENABLED
static void add_ble_scan_result(const uint8_t *bda, uint8_t addr_type, uint16_t appearance, uint8_t *name, uint8_t name_len, int rssi)
{
if (find_scan_result(bda, ble_scan_results)) {
ESP_LOGW(TAG, "Result already exists!");
return;
}{...}
esp_hid_scan_result_t *r = (esp_hid_scan_result_t *)malloc(sizeof(esp_hid_scan_result_t));
if (r == NULL) {
ESP_LOGE(TAG, "Malloc ble_hidh_scan_result_t failed!");
return;
}{...}
r->transport = ESP_HID_TRANSPORT_BLE;
memcpy(r->bda, bda, sizeof(r->bda));
r->ble.appearance = appearance;
r->ble.addr_type = addr_type;
r->usage = esp_hid_usage_from_appearance(appearance);
r->rssi = rssi;
r->name = NULL;
if (name_len && name) {
char *name_s = (char *)malloc(name_len + 1);
if (name_s == NULL) {
free(r);
ESP_LOGE(TAG, "Malloc result name failed!");
return;
}{...}
memcpy(name_s, name, name_len);
name_s[name_len] = 0;
r->name = (const char *)name_s;
}{...}
r->next = ble_scan_results;
ble_scan_results = r;
num_ble_scan_results++;
}{...}
/* ... */#endif
#if !CONFIG_BT_NIMBLE_ENABLED
void print_uuid(esp_bt_uuid_t *uuid)
{
if (uuid->len == ESP_UUID_LEN_16) {
GAP_DBG_PRINTF("UUID16: 0x%04x", uuid->uuid.uuid16);
}{...} else if (uuid->len == ESP_UUID_LEN_32) {
GAP_DBG_PRINTF("UUID32: 0x%08"PRIx32, uuid->uuid.uuid32);
}{...} else if (uuid->len == ESP_UUID_LEN_128) {
GAP_DBG_PRINTF("UUID128: %02x,%02x,%02x,%02x,%02x,%02x,%02x,%02x,%02x,%02x,%02x,%02x,%02x,%02x,%02x,%02x", uuid->uuid.uuid128[0],
uuid->uuid.uuid128[1], uuid->uuid.uuid128[2], uuid->uuid.uuid128[3],
uuid->uuid.uuid128[4], uuid->uuid.uuid128[5], uuid->uuid.uuid128[6],
uuid->uuid.uuid128[7], uuid->uuid.uuid128[8], uuid->uuid.uuid128[9],
uuid->uuid.uuid128[10], uuid->uuid.uuid128[11], uuid->uuid.uuid128[12],
uuid->uuid.uuid128[13], uuid->uuid.uuid128[14], uuid->uuid.uuid128[15]);
}{...}
}{...}
#if CONFIG_BT_HID_HOST_ENABLED
static void handle_bt_device_result(struct disc_res_param *disc_res)
{
GAP_DBG_PRINTF("BT : " ESP_BD_ADDR_STR, ESP_BD_ADDR_HEX(disc_res->bda));
uint32_t codv = 0;
esp_bt_cod_t *cod = (esp_bt_cod_t *)&codv;
int8_t rssi = 0;
uint8_t *name = NULL;
uint8_t name_len = 0;
esp_bt_uuid_t uuid;
uuid.len = ESP_UUID_LEN_16;
uuid.uuid.uuid16 = 0;
for (int i = 0; i < disc_res->num_prop; i++) {
esp_bt_gap_dev_prop_t *prop = &disc_res->prop[i];
if (prop->type != ESP_BT_GAP_DEV_PROP_EIR) {
GAP_DBG_PRINTF(", %s: ", gap_bt_prop_type_names[prop->type]);
}{...}
if (prop->type == ESP_BT_GAP_DEV_PROP_BDNAME) {
name = (uint8_t *)prop->val;
name_len = strlen((const char *)name);
GAP_DBG_PRINTF("%s", (const char *)name);
}{...} else if (prop->type == ESP_BT_GAP_DEV_PROP_RSSI) {
rssi = *((int8_t *)prop->val);
GAP_DBG_PRINTF("%d", rssi);
}{...} else if (prop->type == ESP_BT_GAP_DEV_PROP_COD) {
memcpy(&codv, prop->val, sizeof(uint32_t));
GAP_DBG_PRINTF("major: %s, minor: %d, service: 0x%03x", esp_hid_cod_major_str(cod->major), cod->minor, cod->service);
}{...} else if (prop->type == ESP_BT_GAP_DEV_PROP_EIR) {
uint8_t len = 0;
uint8_t *data = 0;
do {
data = esp_bt_gap_resolve_eir_data((uint8_t *)prop->val, ESP_BT_EIR_TYPE_CMPL_16BITS_UUID, &len);
if (data == NULL) {
data = esp_bt_gap_resolve_eir_data((uint8_t *)prop->val, ESP_BT_EIR_TYPE_INCMPL_16BITS_UUID, &len);
}{...}
if (data && len == ESP_UUID_LEN_16) {
uuid.len = ESP_UUID_LEN_16;
uuid.uuid.uuid16 = data[0] + (data[1] << 8);
GAP_DBG_PRINTF(", "); print_uuid(&uuid);
break;
}{...}
data = esp_bt_gap_resolve_eir_data((uint8_t *)prop->val, ESP_BT_EIR_TYPE_CMPL_32BITS_UUID, &len);
if (data == NULL) {
data = esp_bt_gap_resolve_eir_data((uint8_t *)prop->val, ESP_BT_EIR_TYPE_INCMPL_32BITS_UUID, &len);
}{...}
if (data && len == ESP_UUID_LEN_32) {
uuid.len = len;
memcpy(&uuid.uuid.uuid32, data, sizeof(uint32_t));
GAP_DBG_PRINTF(", "); print_uuid(&uuid);
break;
}{...}
data = esp_bt_gap_resolve_eir_data((uint8_t *)prop->val, ESP_BT_EIR_TYPE_CMPL_128BITS_UUID, &len);
if (data == NULL) {
data = esp_bt_gap_resolve_eir_data((uint8_t *)prop->val, ESP_BT_EIR_TYPE_INCMPL_128BITS_UUID, &len);
}{...}
if (data && len == ESP_UUID_LEN_128) {
uuid.len = len;
memcpy(uuid.uuid.uuid128, (uint8_t *)data, len);
GAP_DBG_PRINTF(", "); print_uuid(&uuid);
}{...}
}{...} while (0);
if (name == NULL) {
data = esp_bt_gap_resolve_eir_data((uint8_t *)prop->val, ESP_BT_EIR_TYPE_CMPL_LOCAL_NAME, &len);
if (data == NULL) {
data = esp_bt_gap_resolve_eir_data((uint8_t *)prop->val, ESP_BT_EIR_TYPE_SHORT_LOCAL_NAME, &len);
}{...}
if (data && len) {
name = data;
name_len = len;
GAP_DBG_PRINTF(", NAME: ");
for (int x = 0; x < len; x++) {
GAP_DBG_PRINTF("%c", (char)data[x]);
}{...}
}{...}
}{...}
}{...}
}{...}
GAP_DBG_PRINTF("\n");
if (cod->major == ESP_BT_COD_MAJOR_DEV_PERIPHERAL || (find_scan_result(disc_res->bda, bt_scan_results) != NULL)) {
add_bt_scan_result(disc_res->bda, cod, &uuid, name, name_len, rssi);
}{...}
}{...}
/* ... */#endif
#if CONFIG_BT_BLE_ENABLED
static void handle_ble_device_result(struct ble_scan_result_evt_param *scan_rst)
{
uint16_t uuid = 0;
uint16_t appearance = 0;
char name[64] = {0};
uint8_t uuid_len = 0;
uint8_t *uuid_d = esp_ble_resolve_adv_data_by_type(scan_rst->ble_adv,
scan_rst->adv_data_len + scan_rst->scan_rsp_len,
ESP_BLE_AD_TYPE_16SRV_CMPL,
&uuid_len);
if (uuid_d != NULL && uuid_len) {
uuid = uuid_d[0] + (uuid_d[1] << 8);
}{...}
uint8_t appearance_len = 0;
uint8_t *appearance_d = esp_ble_resolve_adv_data_by_type(scan_rst->ble_adv,
scan_rst->adv_data_len + scan_rst->scan_rsp_len,
ESP_BLE_AD_TYPE_APPEARANCE,
&appearance_len);
if (appearance_d != NULL && appearance_len) {
appearance = appearance_d[0] + (appearance_d[1] << 8);
}{...}
uint8_t adv_name_len = 0;
uint8_t *adv_name = esp_ble_resolve_adv_data_by_type(scan_rst->ble_adv,
scan_rst->adv_data_len + scan_rst->scan_rsp_len,
ESP_BLE_AD_TYPE_NAME_CMPL,
&adv_name_len);
if (adv_name == NULL) {
adv_name = esp_ble_resolve_adv_data_by_type(scan_rst->ble_adv,
scan_rst->adv_data_len + scan_rst->scan_rsp_len,
ESP_BLE_AD_TYPE_NAME_SHORT,
&adv_name_len);
}{...}
if (adv_name != NULL && adv_name_len) {
memcpy(name, adv_name, adv_name_len);
name[adv_name_len] = 0;
}{...}
GAP_DBG_PRINTF("BLE: " ESP_BD_ADDR_STR ", ", ESP_BD_ADDR_HEX(scan_rst->bda));
GAP_DBG_PRINTF("RSSI: %d, ", scan_rst->rssi);
GAP_DBG_PRINTF("UUID: 0x%04x, ", uuid);
GAP_DBG_PRINTF("APPEARANCE: 0x%04x, ", appearance);
GAP_DBG_PRINTF("ADDR_TYPE: '%s'", ble_addr_type_str(scan_rst->ble_addr_type));
if (adv_name_len) {
GAP_DBG_PRINTF(", NAME: '%s'", name);
}{...}
GAP_DBG_PRINTF("\n");
if (uuid == ESP_GATT_UUID_HID_SVC) {
add_ble_scan_result(scan_rst->bda, scan_rst->ble_addr_type, appearance, adv_name, adv_name_len, scan_rst->rssi);
}{...}
}{...}
/* ... */#endif
#if CONFIG_BT_HID_HOST_ENABLED
/* ... */
static void bt_gap_event_handler(esp_bt_gap_cb_event_t event, esp_bt_gap_cb_param_t *param)
{
switch (event) {
case ESP_BT_GAP_DISC_STATE_CHANGED_EVT: {
ESP_LOGV(TAG, "BT GAP DISC_STATE %s", (param->disc_st_chg.state == ESP_BT_GAP_DISCOVERY_STARTED) ? "START" : "STOP");
if (param->disc_st_chg.state == ESP_BT_GAP_DISCOVERY_STOPPED) {
SEND_BT_CB();
}{...}
break;
}{...}
... case ESP_BT_GAP_DISC_RES_EVT: {
handle_bt_device_result(¶m->disc_res);
break;
}{...}
#if (CONFIG_EXAMPLE_SSP_ENABLED)...
case ESP_BT_GAP_KEY_NOTIF_EVT:
ESP_LOGI(TAG, "BT GAP KEY_NOTIF passkey:%"PRIu32, param->key_notif.passkey);
break;...
case ESP_BT_GAP_CFM_REQ_EVT: {
ESP_LOGI(TAG, "BT GAP CFM_REQ_EVT Please compare the numeric value: %"PRIu32, param->cfm_req.num_val);
esp_bt_gap_ssp_confirm_reply(param->cfm_req.bda, true);
break;
}{...}
... case ESP_BT_GAP_KEY_REQ_EVT:
ESP_LOGI(TAG, "BT GAP KEY_REQ_EVT Please enter passkey!");
break;/* ... */
#endif
case ESP_BT_GAP_MODE_CHG_EVT:
ESP_LOGI(TAG, "BT GAP MODE_CHG_EVT mode:%d", param->mode_chg.mode);
break;...
case ESP_BT_GAP_PIN_REQ_EVT: {
ESP_LOGI(TAG, "BT GAP PIN_REQ_EVT min_16_digit:%d", param->pin_req.min_16_digit);
if (param->pin_req.min_16_digit) {
ESP_LOGI(TAG, "Input pin code: 0000 0000 0000 0000");
esp_bt_pin_code_t pin_code = {0};
esp_bt_gap_pin_reply(param->pin_req.bda, true, 16, pin_code);
}{...} else {
ESP_LOGI(TAG, "Input pin code: 1234");
esp_bt_pin_code_t pin_code;
pin_code[0] = '1';
pin_code[1] = '2';
pin_code[2] = '3';
pin_code[3] = '4';
esp_bt_gap_pin_reply(param->pin_req.bda, true, 4, pin_code);
}{...}
break;
}{...}
... default:
ESP_LOGW(TAG, "BT GAP EVENT %s", bt_gap_evt_str(event));
break;...
}{...}
}{...}
static esp_err_t init_bt_gap(void)
{
esp_err_t ret;
#if (CONFIG_EXAMPLE_SSP_ENABLED)
esp_bt_sp_param_t param_type = ESP_BT_SP_IOCAP_MODE;
esp_bt_io_cap_t iocap = ESP_BT_IO_CAP_IO;
esp_bt_gap_set_security_param(param_type, &iocap, sizeof(uint8_t));/* ... */
#endif
/* ... */
esp_bt_pin_type_t pin_type = ESP_BT_PIN_TYPE_VARIABLE;
esp_bt_pin_code_t pin_code;
esp_bt_gap_set_pin(pin_type, 0, pin_code);
if ((ret = esp_bt_gap_register_callback(bt_gap_event_handler)) != ESP_OK) {
ESP_LOGE(TAG, "esp_bt_gap_register_callback failed: %d", ret);
return ret;
}{...}
if ((ret = esp_bt_gap_set_scan_mode(ESP_BT_CONNECTABLE, ESP_BT_NON_DISCOVERABLE)) != ESP_OK) {
ESP_LOGE(TAG, "esp_bt_gap_set_scan_mode failed: %d", ret);
return ret;
}{...}
return ret;
}{...}
static esp_err_t start_bt_scan(uint32_t seconds)
{
esp_err_t ret = ESP_OK;
if ((ret = esp_bt_gap_start_discovery(ESP_BT_INQ_MODE_GENERAL_INQUIRY, (int)(seconds / 1.28), 0)) != ESP_OK) {
ESP_LOGE(TAG, "esp_bt_gap_start_discovery failed: %d", ret);
return ret;
}{...}
return ret;
}{...}
/* ... */#endif
#if CONFIG_BT_BLE_ENABLED
/* ... */
static void ble_gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
{
switch (event) {
/* ... */
case ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT: {
ESP_LOGV(TAG, "BLE GAP EVENT SCAN_PARAM_SET_COMPLETE");
SEND_BLE_CB();
break;
}{...}
... case ESP_GAP_BLE_SCAN_RESULT_EVT: {
esp_ble_gap_cb_param_t *scan_result = (esp_ble_gap_cb_param_t *)param;
switch (scan_result->scan_rst.search_evt) {
case ESP_GAP_SEARCH_INQ_RES_EVT: {
handle_ble_device_result(&scan_result->scan_rst);
break;
}{...}
... case ESP_GAP_SEARCH_INQ_CMPL_EVT:
ESP_LOGV(TAG, "BLE GAP EVENT SCAN DONE: %d", scan_result->scan_rst.num_resps);
SEND_BLE_CB();
break;...
default:
break;...
}{...}
break;
}{...}
... case ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT: {
ESP_LOGV(TAG, "BLE GAP EVENT SCAN CANCELED");
break;
}{...}
/* ... */
... case ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT:
ESP_LOGV(TAG, "BLE GAP ADV_DATA_SET_COMPLETE");
break;
...
case ESP_GAP_BLE_ADV_START_COMPLETE_EVT:
ESP_LOGV(TAG, "BLE GAP ADV_START_COMPLETE");
break;
/* ... */
... case ESP_GAP_BLE_AUTH_CMPL_EVT:
if (!param->ble_security.auth_cmpl.success) {
ESP_LOGE(TAG, "BLE GAP AUTH ERROR: 0x%x", param->ble_security.auth_cmpl.fail_reason);
}{...} else {
ESP_LOGI(TAG, "BLE GAP AUTH SUCCESS");
}{...}
break;
...
case ESP_GAP_BLE_KEY_EVT:
ESP_LOGI(TAG, "BLE GAP KEY type = %s", esp_ble_key_type_str(param->ble_security.ble_key.key_type));
break;
...
case ESP_GAP_BLE_PASSKEY_NOTIF_EVT:
ESP_LOGI(TAG, "BLE GAP PASSKEY_NOTIF passkey:%"PRIu32, param->ble_security.key_notif.passkey);
break;
...
case ESP_GAP_BLE_NC_REQ_EVT:
ESP_LOGI(TAG, "BLE GAP NC_REQ passkey:%"PRIu32, param->ble_security.key_notif.passkey);
esp_ble_confirm_reply(param->ble_security.key_notif.bd_addr, true);
break;
...
case ESP_GAP_BLE_PASSKEY_REQ_EVT:
ESP_LOGI(TAG, "BLE GAP PASSKEY_REQ");
break;
...
case ESP_GAP_BLE_SEC_REQ_EVT:
ESP_LOGI(TAG, "BLE GAP SEC_REQ");
esp_ble_gap_security_rsp(param->ble_security.ble_req.bd_addr, true);
break;
...
default:
ESP_LOGV(TAG, "BLE GAP EVENT %s", ble_gap_evt_str(event));
break;...
}{...}
}{...}
/* ... */#endif
static esp_err_t init_ble_gap(void)
{
esp_err_t ret;
if ((ret = esp_ble_gap_register_callback(ble_gap_event_handler)) != ESP_OK) {
ESP_LOGE(TAG, "esp_ble_gap_register_callback failed: %d", ret);
return ret;
}{...}
return ret;
}{...}
static esp_ble_scan_params_t hid_scan_params = {
.scan_type = BLE_SCAN_TYPE_ACTIVE,
.own_addr_type = BLE_ADDR_TYPE_PUBLIC,
.scan_filter_policy = BLE_SCAN_FILTER_ALLOW_ALL,
.scan_interval = 0x50,
.scan_window = 0x30,
.scan_duplicate = BLE_SCAN_DUPLICATE_ENABLE,
}{...};
static esp_err_t start_ble_scan(uint32_t seconds)
{
esp_err_t ret = ESP_OK;
if ((ret = esp_ble_gap_set_scan_params(&hid_scan_params)) != ESP_OK) {
ESP_LOGE(TAG, "esp_ble_gap_set_scan_params failed: %d", ret);
return ret;
}{...}
WAIT_BLE_CB();
if ((ret = esp_ble_gap_start_scanning(seconds)) != ESP_OK) {
ESP_LOGE(TAG, "esp_ble_gap_start_scanning failed: %d", ret);
return ret;
}{...}
return ret;
}{...}
esp_err_t esp_hid_ble_gap_adv_init(uint16_t appearance, const char *device_name)
{
esp_err_t ret;
const uint8_t hidd_service_uuid128[] = {
0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00, 0x12, 0x18, 0x00, 0x00,
}{...};
esp_ble_adv_data_t ble_adv_data = {
.set_scan_rsp = false,
.include_name = true,
.include_txpower = true,
.min_interval = 0x0006,
.max_interval = 0x0010,
.appearance = appearance,
.manufacturer_len = 0,
.p_manufacturer_data = NULL,
.service_data_len = 0,
.p_service_data = NULL,
.service_uuid_len = sizeof(hidd_service_uuid128),
.p_service_uuid = (uint8_t *)hidd_service_uuid128,
.flag = 0x6,
}{...};
esp_ble_auth_req_t auth_req = ESP_LE_AUTH_REQ_SC_MITM_BOND;
esp_ble_io_cap_t iocap = ESP_IO_CAP_IO;
uint8_t init_key = ESP_BLE_ENC_KEY_MASK | ESP_BLE_ID_KEY_MASK;
uint8_t rsp_key = ESP_BLE_ENC_KEY_MASK | ESP_BLE_ID_KEY_MASK;
uint8_t key_size = 16;
uint32_t passkey = 1234;
if ((ret = esp_ble_gap_set_security_param(ESP_BLE_SM_AUTHEN_REQ_MODE, &auth_req, 1)) != ESP_OK) {
ESP_LOGE(TAG, "GAP set_security_param AUTHEN_REQ_MODE failed: %d", ret);
return ret;
}{...}
if ((ret = esp_ble_gap_set_security_param(ESP_BLE_SM_IOCAP_MODE, &iocap, 1)) != ESP_OK) {
ESP_LOGE(TAG, "GAP set_security_param IOCAP_MODE failed: %d", ret);
return ret;
}{...}
if ((ret = esp_ble_gap_set_security_param(ESP_BLE_SM_SET_INIT_KEY, &init_key, 1)) != ESP_OK) {
ESP_LOGE(TAG, "GAP set_security_param SET_INIT_KEY failed: %d", ret);
return ret;
}{...}
if ((ret = esp_ble_gap_set_security_param(ESP_BLE_SM_SET_RSP_KEY, &rsp_key, 1)) != ESP_OK) {
ESP_LOGE(TAG, "GAP set_security_param SET_RSP_KEY failed: %d", ret);
return ret;
}{...}
if ((ret = esp_ble_gap_set_security_param(ESP_BLE_SM_MAX_KEY_SIZE, &key_size, 1)) != ESP_OK) {
ESP_LOGE(TAG, "GAP set_security_param MAX_KEY_SIZE failed: %d", ret);
return ret;
}{...}
if ((ret = esp_ble_gap_set_security_param(ESP_BLE_SM_SET_STATIC_PASSKEY, &passkey, sizeof(uint32_t))) != ESP_OK) {
ESP_LOGE(TAG, "GAP set_security_param SET_STATIC_PASSKEY failed: %d", ret);
return ret;
}{...}
if ((ret = esp_ble_gap_set_device_name(device_name)) != ESP_OK) {
ESP_LOGE(TAG, "GAP set_device_name failed: %d", ret);
return ret;
}{...}
if ((ret = esp_ble_gap_config_adv_data(&ble_adv_data)) != ESP_OK) {
ESP_LOGE(TAG, "GAP config_adv_data failed: %d", ret);
return ret;
}{...}
return ret;
}{...}
esp_err_t esp_hid_ble_gap_adv_start(void)
{
static esp_ble_adv_params_t hidd_adv_params = {
.adv_int_min = 0x20,
.adv_int_max = 0x30,
.adv_type = ADV_TYPE_IND,
.own_addr_type = BLE_ADDR_TYPE_PUBLIC,
.channel_map = ADV_CHNL_ALL,
.adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
}{...};
return esp_ble_gap_start_advertising(&hidd_adv_params);
}{...}
/* ... */#endif
/* ... */
#if CONFIG_BT_NIMBLE_ENABLED
static esp_err_t init_low_level(uint8_t mode)
{
esp_err_t ret;
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
#if CONFIG_IDF_TARGET_ESP32
bt_cfg.mode = mode;
#endif
ret = esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT);
if (ret) {
ESP_LOGE(TAG, "esp_bt_controller_mem_release failed: %d", ret);
return ret;
}{...}
ret = esp_bt_controller_init(&bt_cfg);
if (ret) {
ESP_LOGE(TAG, "esp_bt_controller_init failed: %d", ret);
return ret;
}{...}
ret = esp_bt_controller_enable(mode);
if (ret) {
ESP_LOGE(TAG, "esp_bt_controller_enable failed: %d", ret);
return ret;
}{...}
ret = esp_nimble_init();
if (ret) {
ESP_LOGE(TAG, "esp_nimble_init failed: %d", ret);
return ret;
}{...}
return ret;
}{...}
static void handle_ble_device_result(const struct ble_gap_disc_desc *disc)
{
int rc;
struct ble_hs_adv_fields fields;
uint16_t appearance;
uint8_t adv_name[BLE_HS_ADV_MAX_SZ];
uint8_t adv_name_len = 0;
appearance = 0;
rc = ble_hs_adv_parse_fields(&fields, disc->data, disc->length_data);
if(rc != 0) {
return;
}{...}
if (fields.name != NULL) {
assert(fields.name_len < sizeof adv_name - 1);
memcpy(adv_name, fields.name, fields.name_len);
adv_name[fields.name_len] = '\0';
adv_name_len = fields.name_len;
MODLOG_DFLT(DEBUG, " name(%scomplete)=%s\n",
fields.name_is_complete ? "" : "in", adv_name);
}{...}
if (fields.appearance_is_present) {
MODLOG_DFLT(DEBUG, " appearance=0x%04x\n", fields.appearance);
appearance = fields.appearance;
}{...}
for (int i = 0; i < fields.num_uuids16; i++) {
if (ble_uuid_u16(&fields.uuids16[i].u) == BLE_HID_SVC_UUID &&
((adv_name_len > 0 && memcmp("ESP BLE HID2", adv_name, adv_name_len) == 0) ||
(adv_name_len > 0 && memcmp("ESP Mouse", adv_name, adv_name_len) == 0) ||
(adv_name_len > 0 && memcmp("ESP Keyboard", adv_name, adv_name_len) == 0))) {
add_ble_scan_result(disc->addr.val, disc->addr.type, appearance, adv_name, adv_name_len, disc->rssi);
break;
}{...}
}{...}
}{...}
/* ... */#endif
#if CONFIG_BT_NIMBLE_ENABLED
static int
nimble_hid_gap_event(struct ble_gap_event *event, void *arg)
{
struct ble_gap_conn_desc desc;
int rc;
switch (event->type) {
case BLE_GAP_EVENT_DISC:
handle_ble_device_result(&event->disc);
if (rc != 0) {
return 0;
}{...}
return 0;
break;...
case BLE_GAP_EVENT_DISC_COMPLETE:
MODLOG_DFLT(INFO, "discovery complete; reason=%d\n",
event->disc_complete.reason);
SEND_BLE_CB();
return 0;...
case BLE_GAP_EVENT_CONNECT:
ESP_LOGI(TAG, "connection %s; status=%d",
event->connect.status == 0 ? "established" : "failed",
event->connect.status);
return 0;
break;...
case BLE_GAP_EVENT_DISCONNECT:
ESP_LOGI(TAG, "disconnect; reason=%d", event->disconnect.reason);
return 0;...
case BLE_GAP_EVENT_CONN_UPDATE:
ESP_LOGI(TAG, "connection updated; status=%d",
event->conn_update.status);
return 0;
...
case BLE_GAP_EVENT_ADV_COMPLETE:
ESP_LOGI(TAG, "advertise complete; reason=%d",
event->adv_complete.reason);
return 0;
...
case BLE_GAP_EVENT_SUBSCRIBE:
ESP_LOGI(TAG, "subscribe event; conn_handle=%d attr_handle=%d "
"reason=%d prevn=%d curn=%d previ=%d curi=%d\n",
event->subscribe.conn_handle,
event->subscribe.attr_handle,
event->subscribe.reason,
event->subscribe.prev_notify,
event->subscribe.cur_notify,
event->subscribe.prev_indicate,
event->subscribe.cur_indicate);
return 0;
...
case BLE_GAP_EVENT_MTU:
ESP_LOGI(TAG, "mtu update event; conn_handle=%d cid=%d mtu=%d",
event->mtu.conn_handle,
event->mtu.channel_id,
event->mtu.value);
return 0;
...
case BLE_GAP_EVENT_ENC_CHANGE:
MODLOG_DFLT(INFO, "encryption change event; status=%d ",
event->enc_change.status);
rc = ble_gap_conn_find(event->enc_change.conn_handle, &desc);
assert(rc == 0);
return 0;
...
case BLE_GAP_EVENT_NOTIFY_TX:
MODLOG_DFLT(INFO, "notify_tx event; conn_handle=%d attr_handle=%d "
"status=%d is_indication=%d",
event->notify_tx.conn_handle,
event->notify_tx.attr_handle,
event->notify_tx.status,
event->notify_tx.indication);
return 0;
...
case BLE_GAP_EVENT_REPEAT_PAIRING:
/* ... */
rc = ble_gap_conn_find(event->repeat_pairing.conn_handle, &desc);
assert(rc == 0);
ble_store_util_delete_peer(&desc.peer_id_addr);
/* ... */
return BLE_GAP_REPEAT_PAIRING_RETRY;
...
case BLE_GAP_EVENT_PASSKEY_ACTION:
ESP_LOGI(TAG, "PASSKEY_ACTION_EVENT started");
struct ble_sm_io pkey = {0};
int key = 0;
if (event->passkey.params.action == BLE_SM_IOACT_DISP) {
pkey.action = event->passkey.params.action;
pkey.passkey = 123456;
ESP_LOGI(TAG, "Enter passkey %" PRIu32 "on the peer side", pkey.passkey);
rc = ble_sm_inject_io(event->passkey.conn_handle, &pkey);
ESP_LOGI(TAG, "ble_sm_inject_io result: %d", rc);
}{...} else if (event->passkey.params.action == BLE_SM_IOACT_NUMCMP) {
ESP_LOGI(TAG, "Accepting passkey..");
pkey.action = event->passkey.params.action;
pkey.numcmp_accept = key;
rc = ble_sm_inject_io(event->passkey.conn_handle, &pkey);
ESP_LOGI(TAG, "ble_sm_inject_io result: %d", rc);
}{...} else if (event->passkey.params.action == BLE_SM_IOACT_OOB) {
static uint8_t tem_oob[16] = {0};
pkey.action = event->passkey.params.action;
for (int i = 0; i < 16; i++) {
pkey.oob[i] = tem_oob[i];
}{...}
rc = ble_sm_inject_io(event->passkey.conn_handle, &pkey);
ESP_LOGI(TAG, "ble_sm_inject_io result: %d", rc);
}{...} else if (event->passkey.params.action == BLE_SM_IOACT_INPUT) {
ESP_LOGI(TAG, "Input not supported passing -> 123456");
pkey.action = event->passkey.params.action;
pkey.passkey = 123456;
rc = ble_sm_inject_io(event->passkey.conn_handle, &pkey);
ESP_LOGI(TAG, "ble_sm_inject_io result: %d", rc);
}{...}
return 0;...
}{...}
return 0;
}{...}
static esp_err_t start_nimble_scan(uint32_t seconds)
{
uint8_t own_addr_type;
struct ble_gap_disc_params disc_params;
int rc;
rc = ble_hs_id_infer_auto(0, &own_addr_type);
if (rc != 0) {
MODLOG_DFLT(ERROR, "error determining address type; rc=%d\n", rc);
return rc;
}{...}
/* ... */
disc_params.filter_duplicates = 1;
/* ... */
disc_params.passive = 0;
disc_params.itvl = 0x50;
disc_params.window = 0x30;
disc_params.filter_policy = 0;
disc_params.limited = 0;
rc = ble_gap_disc(own_addr_type, seconds * 1000, &disc_params,
nimble_hid_gap_event, NULL);
if (rc != 0) {
MODLOG_DFLT(ERROR, "Error initiating GAP discovery procedure; rc=%d\n",
rc);
}{...}
return rc;
}{...}
/* ... */
#else
static esp_err_t init_low_level(uint8_t mode)
{
esp_err_t ret;
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
#if CONFIG_IDF_TARGET_ESP32
bt_cfg.mode = mode;
#endif
#if CONFIG_BT_HID_HOST_ENABLED
if (mode & ESP_BT_MODE_CLASSIC_BT) {
bt_cfg.bt_max_acl_conn = 3;
bt_cfg.bt_max_sync_conn = 3;
}{...} else
#endif
{
ret = esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT);
if (ret) {
ESP_LOGE(TAG, "esp_bt_controller_mem_release failed: %d", ret);
return ret;
}{...}
}{...}
ret = esp_bt_controller_init(&bt_cfg);
if (ret) {
ESP_LOGE(TAG, "esp_bt_controller_init failed: %d", ret);
return ret;
}{...}
ret = esp_bt_controller_enable(mode);
if (ret) {
ESP_LOGE(TAG, "esp_bt_controller_enable failed: %d", ret);
return ret;
}{...}
esp_bluedroid_config_t bluedroid_cfg = BT_BLUEDROID_INIT_CONFIG_DEFAULT();
#if (CONFIG_EXAMPLE_SSP_ENABLED == false)
bluedroid_cfg.ssp_en = false;
#endif
ret = esp_bluedroid_init_with_cfg(&bluedroid_cfg);
if (ret) {
ESP_LOGE(TAG, "esp_bluedroid_init failed: %d", ret);
return ret;
}{...}
ret = esp_bluedroid_enable();
if (ret) {
ESP_LOGE(TAG, "esp_bluedroid_enable failed: %d", ret);
return ret;
}{...}
#if CONFIG_BT_HID_HOST_ENABLED
if (mode & ESP_BT_MODE_CLASSIC_BT) {
ret = init_bt_gap();
if (ret) {
return ret;
}{...}
}{...}
/* ... */#endif
#if CONFIG_BT_BLE_ENABLED
if (mode & ESP_BT_MODE_BLE) {
ret = init_ble_gap();
if (ret) {
return ret;
}{...}
}{...}
/* ... */#endif
return ret;
}{...}
/* ... */#endif
esp_err_t esp_hid_gap_init(uint8_t mode)
{
esp_err_t ret;
if (!mode || mode > ESP_BT_MODE_BTDM) {
ESP_LOGE(TAG, "Invalid mode given!");
return ESP_FAIL;
}{...}
if (bt_hidh_cb_semaphore != NULL) {
ESP_LOGE(TAG, "Already initialised");
return ESP_FAIL;
}{...}
bt_hidh_cb_semaphore = xSemaphoreCreateBinary();
if (bt_hidh_cb_semaphore == NULL) {
ESP_LOGE(TAG, "xSemaphoreCreateMutex failed!");
return ESP_FAIL;
}{...}
ble_hidh_cb_semaphore = xSemaphoreCreateBinary();
if (ble_hidh_cb_semaphore == NULL) {
ESP_LOGE(TAG, "xSemaphoreCreateMutex failed!");
vSemaphoreDelete(bt_hidh_cb_semaphore);
bt_hidh_cb_semaphore = NULL;
return ESP_FAIL;
}{...}
ret = init_low_level(mode);
if (ret != ESP_OK) {
vSemaphoreDelete(bt_hidh_cb_semaphore);
bt_hidh_cb_semaphore = NULL;
vSemaphoreDelete(ble_hidh_cb_semaphore);
ble_hidh_cb_semaphore = NULL;
return ret;
}{...}
return ESP_OK;
}{...}
esp_err_t esp_hid_scan(uint32_t seconds, size_t *num_results, esp_hid_scan_result_t **results)
{
if (num_bt_scan_results || bt_scan_results || num_ble_scan_results || ble_scan_results) {
ESP_LOGE(TAG, "There are old scan results. Free them first!");
return ESP_FAIL;
}{...}
#if CONFIG_BT_BLE_ENABLED
if (start_ble_scan(seconds) == ESP_OK) {
WAIT_BLE_CB();
}{...} else {
return ESP_FAIL;
}{...}
/* ... */#endif
#if CONFIG_BT_NIMBLE_ENABLED
if (start_nimble_scan(seconds) == ESP_OK) {
WAIT_BLE_CB();
}{...} else {
return ESP_FAIL;
}{...}
/* ... */#endif
#if CONFIG_BT_HID_HOST_ENABLED
if (start_bt_scan(seconds) == ESP_OK) {
WAIT_BT_CB();
}{...} else {
return ESP_FAIL;
}{...}
/* ... */#endif
*num_results = num_bt_scan_results + num_ble_scan_results;
*results = bt_scan_results;
if (num_bt_scan_results) {
while (bt_scan_results->next != NULL) {
bt_scan_results = bt_scan_results->next;
}{...}
bt_scan_results->next = ble_scan_results;
}{...} else {
*results = ble_scan_results;
}{...}
num_bt_scan_results = 0;
bt_scan_results = NULL;
num_ble_scan_results = 0;
ble_scan_results = NULL;
return ESP_OK;
}{...}