1 /******************************************************************************
2 *
3 * Copyright (C) 2014 Broadcom Corporation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18 #include <base/bind.h>
19 #include <stddef.h>
20 #include <stdio.h>
21 #include <string.h>
22 #include <vector>
23 #include "bt_target.h"
24
25 #include "bt_types.h"
26 #include "bt_utils.h"
27 #include "btm_ble_api.h"
28 #include "btm_int.h"
29 #include "btu.h"
30 #include "device/include/controller.h"
31 #include "hcimsgs.h"
32
33 using base::Bind;
34 using base::Callback;
35 using hci_cmd_cb = base::Callback<void(uint8_t* /* return_parameters */,
36 uint16_t /* return_parameters_length*/)>;
37
38 tBTM_BLE_BATCH_SCAN_CB ble_batchscan_cb;
39 tBTM_BLE_ADV_TRACK_CB ble_advtrack_cb;
40
41 /* length of each batch scan command */
42 #define BTM_BLE_BATCH_SCAN_STORAGE_CFG_LEN 4
43 #define BTM_BLE_BATCH_SCAN_PARAM_CONFIG_LEN 12
44 #define BTM_BLE_BATCH_SCAN_ENB_DISB_LEN 2
45 #define BTM_BLE_BATCH_SCAN_READ_RESULTS_LEN 2
46
47 namespace {
48
can_do_batch_scan()49 bool can_do_batch_scan() {
50 if (!controller_get_interface()->supports_ble()) return false;
51
52 tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
53 BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
54
55 if (cmn_ble_vsc_cb.tot_scan_results_strg == 0) return false;
56
57 return true;
58 }
59
60 /* VSE callback for batch scan, filter, and tracking events */
btm_ble_batchscan_filter_track_adv_vse_cback(uint8_t len,uint8_t * p)61 void btm_ble_batchscan_filter_track_adv_vse_cback(uint8_t len, uint8_t* p) {
62 tBTM_BLE_TRACK_ADV_DATA adv_data;
63
64 uint8_t sub_event = 0;
65 tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
66 STREAM_TO_UINT8(sub_event, p);
67
68 BTM_TRACE_EVENT(
69 "btm_ble_batchscan_filter_track_adv_vse_cback called with event:%x",
70 sub_event);
71 if (HCI_VSE_SUBCODE_BLE_THRESHOLD_SUB_EVT == sub_event &&
72 NULL != ble_batchscan_cb.p_thres_cback) {
73 ble_batchscan_cb.p_thres_cback(ble_batchscan_cb.ref_value);
74 return;
75 }
76
77 if (HCI_VSE_SUBCODE_BLE_TRACKING_SUB_EVT == sub_event &&
78 NULL != ble_advtrack_cb.p_track_cback) {
79 if (len < 10) return;
80
81 memset(&adv_data, 0, sizeof(tBTM_BLE_TRACK_ADV_DATA));
82 BTM_BleGetVendorCapabilities(&cmn_ble_vsc_cb);
83 adv_data.client_if = (uint8_t)ble_advtrack_cb.ref_value;
84 if (cmn_ble_vsc_cb.version_supported > BTM_VSC_CHIP_CAPABILITY_L_VERSION) {
85 STREAM_TO_UINT8(adv_data.filt_index, p);
86 STREAM_TO_UINT8(adv_data.advertiser_state, p);
87 STREAM_TO_UINT8(adv_data.advertiser_info_present, p);
88 STREAM_TO_BDADDR(adv_data.bd_addr, p);
89 STREAM_TO_UINT8(adv_data.addr_type, p);
90
91 /* Extract the adv info details */
92 if (ADV_INFO_PRESENT == adv_data.advertiser_info_present) {
93 STREAM_TO_UINT8(adv_data.tx_power, p);
94 STREAM_TO_UINT8(adv_data.rssi_value, p);
95 STREAM_TO_UINT16(adv_data.time_stamp, p);
96
97 STREAM_TO_UINT8(adv_data.adv_pkt_len, p);
98 if (adv_data.adv_pkt_len > 0) {
99 adv_data.p_adv_pkt_data =
100 static_cast<uint8_t*>(osi_malloc(adv_data.adv_pkt_len));
101 memcpy(adv_data.p_adv_pkt_data, p, adv_data.adv_pkt_len);
102 }
103
104 STREAM_TO_UINT8(adv_data.scan_rsp_len, p);
105 if (adv_data.scan_rsp_len > 0) {
106 adv_data.p_scan_rsp_data =
107 static_cast<uint8_t*>(osi_malloc(adv_data.scan_rsp_len));
108 memcpy(adv_data.p_scan_rsp_data, p, adv_data.scan_rsp_len);
109 }
110 }
111 } else {
112 /* Based on L-release version */
113 STREAM_TO_UINT8(adv_data.filt_index, p);
114 STREAM_TO_UINT8(adv_data.addr_type, p);
115 STREAM_TO_BDADDR(adv_data.bd_addr, p);
116 STREAM_TO_UINT8(adv_data.advertiser_state, p);
117 }
118
119 BTM_TRACE_EVENT("track_adv_vse_cback called: %d, %d, %d",
120 adv_data.filt_index, adv_data.addr_type,
121 adv_data.advertiser_state);
122
123 // Make sure the device is known
124 BTM_SecAddBleDevice(adv_data.bd_addr, NULL, BT_DEVICE_TYPE_BLE,
125 adv_data.addr_type);
126
127 ble_advtrack_cb.p_track_cback(&adv_data);
128 return;
129 }
130 }
131
feat_enable_cb(uint8_t * p,uint16_t len)132 void feat_enable_cb(uint8_t* p, uint16_t len) {
133 if (len < 2) {
134 BTM_TRACE_ERROR("%s: wrong length", __func__);
135 return;
136 }
137
138 uint8_t status, subcode;
139 STREAM_TO_UINT8(status, p);
140 STREAM_TO_UINT8(subcode, p);
141
142 uint8_t expected_opcode = BTM_BLE_BATCH_SCAN_ENB_DISAB_CUST_FEATURE;
143 if (subcode != expected_opcode) {
144 BTM_TRACE_ERROR("%s: bad subcode, expected: %d got: %d", __func__,
145 expected_opcode, subcode);
146 return;
147 }
148
149 if (ble_batchscan_cb.cur_state != BTM_BLE_SCAN_ENABLE_CALLED)
150 BTM_TRACE_ERROR("%s: state should be ENABLE_CALLED", __func__);
151
152 ble_batchscan_cb.cur_state = BTM_BLE_SCAN_ENABLED_STATE;
153 }
154
storage_config_cb(Callback<void (uint8_t)> cb,uint8_t * p,uint16_t len)155 void storage_config_cb(Callback<void(uint8_t /* status */)> cb, uint8_t* p,
156 uint16_t len) {
157 if (len < 2) {
158 BTM_TRACE_ERROR("%s: wrong length", __func__);
159 return;
160 }
161
162 uint8_t status, subcode;
163 STREAM_TO_UINT8(status, p);
164 STREAM_TO_UINT8(subcode, p);
165
166 uint8_t expected_opcode = BTM_BLE_BATCH_SCAN_SET_STORAGE_PARAM;
167 if (subcode != expected_opcode) {
168 BTM_TRACE_ERROR("%s: bad subcode, expected: %d got: %d", __func__,
169 expected_opcode, subcode);
170 return;
171 }
172
173 cb.Run(status);
174 }
175
param_enable_cb(Callback<void (uint8_t)> cb,uint8_t * p,uint16_t len)176 void param_enable_cb(Callback<void(uint8_t /* status */)> cb, uint8_t* p,
177 uint16_t len) {
178 if (len < 2) {
179 BTM_TRACE_ERROR("%s: wrong length", __func__);
180 return;
181 }
182
183 uint8_t status, subcode;
184 STREAM_TO_UINT8(status, p);
185 STREAM_TO_UINT8(subcode, p);
186
187 uint8_t expected_opcode = BTM_BLE_BATCH_SCAN_SET_PARAMS;
188 if (subcode != expected_opcode) {
189 BTM_TRACE_ERROR("%s: bad subcode: 0x%02x 0x%02x", __func__, expected_opcode,
190 subcode);
191 return;
192 }
193
194 cb.Run(status);
195 }
196
disable_cb(base::Callback<void (uint8_t)> cb,uint8_t * p,uint16_t len)197 void disable_cb(base::Callback<void(uint8_t /* status */)> cb, uint8_t* p,
198 uint16_t len) {
199 if (len < 2) {
200 BTM_TRACE_ERROR("%s: wrong length", __func__);
201 return;
202 }
203
204 uint8_t status, subcode;
205 STREAM_TO_UINT8(status, p);
206 STREAM_TO_UINT8(subcode, p);
207
208 uint8_t expected_opcode = BTM_BLE_BATCH_SCAN_SET_PARAMS;
209 if (subcode != expected_opcode) {
210 BTM_TRACE_ERROR("%s: bad subcode: 0x%02x 0x%02x", __func__, expected_opcode,
211 subcode);
212 return;
213 }
214
215 if (ble_batchscan_cb.cur_state != BTM_BLE_SCAN_DISABLE_CALLED) {
216 BTM_TRACE_ERROR("%s: state should be DISABLE_CALLED", __func__);
217 }
218
219 if (BTM_SUCCESS == status) {
220 ble_batchscan_cb.cur_state = BTM_BLE_SCAN_DISABLED_STATE;
221 } else {
222 BTM_TRACE_ERROR("%s: Invalid state after disabled", __func__);
223 ble_batchscan_cb.cur_state = BTM_BLE_SCAN_INVALID_STATE;
224 }
225
226 cb.Run(status);
227 }
228
229 /**
230 * This function reads the reports from controller. |scan_mode| is the mode for
231 * which the reports are to be read
232 */
btm_ble_read_batchscan_reports(tBTM_BLE_BATCH_SCAN_MODE scan_mode,hci_cmd_cb cb)233 void btm_ble_read_batchscan_reports(tBTM_BLE_BATCH_SCAN_MODE scan_mode,
234 hci_cmd_cb cb) {
235 uint8_t len = BTM_BLE_BATCH_SCAN_READ_RESULTS_LEN;
236 uint8_t param[len];
237 memset(param, 0, len);
238
239 uint8_t* pp = param;
240 UINT8_TO_STREAM(pp, BTM_BLE_BATCH_SCAN_READ_RESULTS);
241 UINT8_TO_STREAM(pp, scan_mode);
242
243 btu_hcif_send_cmd_with_cb(FROM_HERE, HCI_BLE_BATCH_SCAN_OCF, param, len, cb);
244 }
245
246 /* read reports. data is accumulated in |data_all|, number of records is
247 * accumulated in |num_records_all| */
read_reports_cb(std::vector<uint8_t> data_all,uint8_t num_records_all,tBTM_BLE_SCAN_REP_CBACK cb,uint8_t * p,uint16_t len)248 void read_reports_cb(std::vector<uint8_t> data_all, uint8_t num_records_all,
249 tBTM_BLE_SCAN_REP_CBACK cb, uint8_t* p, uint16_t len) {
250 if (len < 2) {
251 BTM_TRACE_ERROR("%s: wrong length", __func__);
252 return;
253 }
254
255 uint8_t status, subcode;
256 STREAM_TO_UINT8(status, p);
257 STREAM_TO_UINT8(subcode, p);
258
259 uint8_t expected_opcode = BTM_BLE_BATCH_SCAN_READ_RESULTS;
260 if (subcode != expected_opcode) {
261 BTM_TRACE_ERROR("%s: bad subcode, expected: %d got: %d", __func__,
262 expected_opcode, subcode);
263 return;
264 }
265
266 uint8_t report_format, num_records;
267 STREAM_TO_UINT8(report_format, p);
268 STREAM_TO_UINT8(num_records, p);
269
270 BTM_TRACE_DEBUG("%s: status=%d,len=%d,rec=%d", __func__, status, len - 4,
271 num_records);
272
273 if (num_records == 0) {
274 cb.Run(status, report_format, num_records_all, data_all);
275 return;
276 }
277
278 if (len > 4) {
279 data_all.insert(data_all.end(), p, p + len - 4);
280 num_records_all += num_records;
281
282 /* More records could be in the buffer and needs to be pulled out */
283 btm_ble_read_batchscan_reports(
284 report_format, base::Bind(&read_reports_cb, std::move(data_all),
285 num_records_all, std::move(cb)));
286 }
287 }
288
289 /**
290 * This function writes the storage configuration in controller
291 *
292 * Parameters batch_scan_full_max - Max storage space (in %) allocated to
293 * full scanning
294 * batch_scan_trunc_max - Max storage space (in %) allocated to
295 * truncated scanning
296 * batch_scan_notify_threshold - Set up notification level
297 * based on total space
298 *
299 **/
btm_ble_set_storage_config(uint8_t batch_scan_full_max,uint8_t batch_scan_trunc_max,uint8_t batch_scan_notify_threshold,hci_cmd_cb cb)300 void btm_ble_set_storage_config(uint8_t batch_scan_full_max,
301 uint8_t batch_scan_trunc_max,
302 uint8_t batch_scan_notify_threshold,
303 hci_cmd_cb cb) {
304 uint8_t len = BTM_BLE_BATCH_SCAN_STORAGE_CFG_LEN;
305 uint8_t param[len];
306 memset(param, 0, len);
307
308 uint8_t* pp = param;
309 UINT8_TO_STREAM(pp, BTM_BLE_BATCH_SCAN_SET_STORAGE_PARAM);
310 UINT8_TO_STREAM(pp, batch_scan_full_max);
311 UINT8_TO_STREAM(pp, batch_scan_trunc_max);
312 UINT8_TO_STREAM(pp, batch_scan_notify_threshold);
313
314 btu_hcif_send_cmd_with_cb(FROM_HERE, HCI_BLE_BATCH_SCAN_OCF, param, len, cb);
315 }
316
317 /* This function writes the batch scan params in controller */
btm_ble_set_batchscan_param(tBTM_BLE_BATCH_SCAN_MODE scan_mode,uint32_t scan_interval,uint32_t scan_window,tBLE_ADDR_TYPE addr_type,tBTM_BLE_DISCARD_RULE discard_rule,hci_cmd_cb cb)318 void btm_ble_set_batchscan_param(tBTM_BLE_BATCH_SCAN_MODE scan_mode,
319 uint32_t scan_interval, uint32_t scan_window,
320 tBLE_ADDR_TYPE addr_type,
321 tBTM_BLE_DISCARD_RULE discard_rule,
322 hci_cmd_cb cb) {
323 // Override param and decide addr_type based on own addr type
324 // TODO: Remove upper layer parameter?
325 addr_type = btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type;
326
327 uint8_t len = BTM_BLE_BATCH_SCAN_PARAM_CONFIG_LEN;
328 uint8_t param[len];
329 memset(param, 0, len);
330
331 uint8_t* p = param;
332 UINT8_TO_STREAM(p, BTM_BLE_BATCH_SCAN_SET_PARAMS);
333 UINT8_TO_STREAM(p, scan_mode);
334 UINT32_TO_STREAM(p, scan_window);
335 UINT32_TO_STREAM(p, scan_interval);
336 UINT8_TO_STREAM(p, addr_type);
337 UINT8_TO_STREAM(p, discard_rule);
338
339 btu_hcif_send_cmd_with_cb(FROM_HERE, HCI_BLE_BATCH_SCAN_OCF, param, len, cb);
340 }
341
342 /* This function enables the customer specific feature in controller */
btm_ble_enable_batchscan(hci_cmd_cb cb)343 void btm_ble_enable_batchscan(hci_cmd_cb cb) {
344 uint8_t len = BTM_BLE_BATCH_SCAN_ENB_DISB_LEN;
345 uint8_t param[len];
346 memset(param, 0, len);
347
348 uint8_t* p = param;
349 UINT8_TO_STREAM(p, BTM_BLE_BATCH_SCAN_ENB_DISAB_CUST_FEATURE);
350 UINT8_TO_STREAM(p, 0x01 /* enable */);
351
352 btu_hcif_send_cmd_with_cb(FROM_HERE, HCI_BLE_BATCH_SCAN_OCF, param, len, cb);
353 }
354
355 } // namespace
356
357 /*******************************************************************************
358 *
359 * Description This function is called to write storage config params.
360 *
361 * Parameters: batch_scan_full_max - Max storage space (in %) allocated to
362 * full style
363 * batch_scan_trunc_max - Max storage space (in %) allocated to
364 * trunc style
365 * batch_scan_notify_threshold - Setup notification level based
366 * on total space
367 * cb - Setup callback pointer
368 * p_thres_cback - Threshold callback pointer
369 * ref_value - Reference value
370 *
371 ******************************************************************************/
BTM_BleSetStorageConfig(uint8_t batch_scan_full_max,uint8_t batch_scan_trunc_max,uint8_t batch_scan_notify_threshold,Callback<void (uint8_t)> cb,tBTM_BLE_SCAN_THRESHOLD_CBACK * p_thres_cback,tBTM_BLE_REF_VALUE ref_value)372 void BTM_BleSetStorageConfig(uint8_t batch_scan_full_max,
373 uint8_t batch_scan_trunc_max,
374 uint8_t batch_scan_notify_threshold,
375 Callback<void(uint8_t /* status */)> cb,
376 tBTM_BLE_SCAN_THRESHOLD_CBACK* p_thres_cback,
377 tBTM_BLE_REF_VALUE ref_value) {
378 if (!can_do_batch_scan()) {
379 cb.Run(BTM_ERR_PROCESSING);
380 return;
381 }
382
383 BTM_TRACE_EVENT("%s: %d, %d, %d, %d, %d", __func__,
384 ble_batchscan_cb.cur_state, ref_value, batch_scan_full_max,
385 batch_scan_trunc_max, batch_scan_notify_threshold);
386
387 ble_batchscan_cb.p_thres_cback = p_thres_cback;
388 ble_batchscan_cb.ref_value = ref_value;
389
390 if (batch_scan_full_max > BTM_BLE_ADV_SCAN_FULL_MAX ||
391 batch_scan_trunc_max > BTM_BLE_ADV_SCAN_TRUNC_MAX ||
392 batch_scan_notify_threshold > BTM_BLE_ADV_SCAN_THR_MAX) {
393 BTM_TRACE_ERROR("Illegal set storage config params");
394 cb.Run(BTM_ILLEGAL_VALUE);
395 return;
396 }
397
398 if (BTM_BLE_SCAN_INVALID_STATE == ble_batchscan_cb.cur_state ||
399 BTM_BLE_SCAN_DISABLED_STATE == ble_batchscan_cb.cur_state ||
400 BTM_BLE_SCAN_DISABLE_CALLED == ble_batchscan_cb.cur_state) {
401 btm_ble_enable_batchscan(Bind(&feat_enable_cb));
402 ble_batchscan_cb.cur_state = BTM_BLE_SCAN_ENABLE_CALLED;
403 }
404
405 btm_ble_set_storage_config(batch_scan_full_max, batch_scan_trunc_max,
406 batch_scan_notify_threshold,
407 Bind(&storage_config_cb, cb));
408 return;
409 }
410
411 /* This function is called to configure and enable batch scanning */
BTM_BleEnableBatchScan(tBTM_BLE_BATCH_SCAN_MODE scan_mode,uint32_t scan_interval,uint32_t scan_window,tBLE_ADDR_TYPE addr_type,tBTM_BLE_DISCARD_RULE discard_rule,Callback<void (uint8_t)> cb)412 void BTM_BleEnableBatchScan(tBTM_BLE_BATCH_SCAN_MODE scan_mode,
413 uint32_t scan_interval, uint32_t scan_window,
414 tBLE_ADDR_TYPE addr_type,
415 tBTM_BLE_DISCARD_RULE discard_rule,
416 Callback<void(uint8_t /* status */)> cb) {
417 BTM_TRACE_EVENT("%s: %d, %d, %d, %d, %d, %d", __func__, scan_mode,
418 scan_interval, scan_window, addr_type, discard_rule);
419
420 if (!can_do_batch_scan()) {
421 cb.Run(BTM_ERR_PROCESSING);
422 return;
423 }
424
425 BTM_TRACE_DEBUG("%s: %d, %x, %x, %d, %d", __func__, scan_mode, scan_interval,
426 scan_window, discard_rule, ble_batchscan_cb.cur_state);
427
428 /* Only 16 bits will be used for scan interval and scan window as per
429 * agreement with Google */
430 /* So the standard LE range would suffice for scan interval and scan window */
431 if ((BTM_BLE_ISVALID_PARAM(scan_interval, BTM_BLE_SCAN_INT_MIN,
432 BTM_BLE_SCAN_INT_MAX) ||
433 BTM_BLE_ISVALID_PARAM(scan_window, BTM_BLE_SCAN_WIN_MIN,
434 BTM_BLE_SCAN_WIN_MAX)) &&
435 (BTM_BLE_BATCH_SCAN_MODE_PASS == scan_mode ||
436 BTM_BLE_BATCH_SCAN_MODE_ACTI == scan_mode ||
437 BTM_BLE_BATCH_SCAN_MODE_PASS_ACTI == scan_mode) &&
438 (BTM_BLE_DISCARD_OLD_ITEMS == discard_rule ||
439 BTM_BLE_DISCARD_LOWER_RSSI_ITEMS == discard_rule)) {
440 } else {
441 BTM_TRACE_ERROR("%s: Illegal enable scan params", __func__);
442 cb.Run(BTM_ILLEGAL_VALUE);
443 return;
444 }
445
446 if (BTM_BLE_SCAN_INVALID_STATE == ble_batchscan_cb.cur_state ||
447 BTM_BLE_SCAN_DISABLED_STATE == ble_batchscan_cb.cur_state ||
448 BTM_BLE_SCAN_DISABLE_CALLED == ble_batchscan_cb.cur_state) {
449 btm_ble_enable_batchscan(Bind(&feat_enable_cb));
450 ble_batchscan_cb.cur_state = BTM_BLE_SCAN_ENABLE_CALLED;
451 }
452
453 ble_batchscan_cb.scan_mode = scan_mode;
454 ble_batchscan_cb.scan_interval = scan_interval;
455 ble_batchscan_cb.scan_window = scan_window;
456 ble_batchscan_cb.addr_type = addr_type;
457 ble_batchscan_cb.discard_rule = discard_rule;
458 /* This command starts batch scanning, if enabled */
459 btm_ble_set_batchscan_param(scan_mode, scan_interval, scan_window, addr_type,
460 discard_rule, Bind(¶m_enable_cb, cb));
461 }
462
463 /* This function is called to disable batch scanning */
BTM_BleDisableBatchScan(base::Callback<void (uint8_t)> cb)464 void BTM_BleDisableBatchScan(base::Callback<void(uint8_t /* status */)> cb) {
465 BTM_TRACE_EVENT(" BTM_BleDisableBatchScan");
466
467 if (!can_do_batch_scan()) {
468 cb.Run(BTM_ERR_PROCESSING);
469 return;
470 }
471
472 btm_ble_set_batchscan_param(
473 BTM_BLE_BATCH_SCAN_MODE_DISABLE, ble_batchscan_cb.scan_interval,
474 ble_batchscan_cb.scan_window, ble_batchscan_cb.addr_type,
475 ble_batchscan_cb.discard_rule, Bind(&disable_cb, cb));
476 ble_batchscan_cb.cur_state = BTM_BLE_SCAN_DISABLE_CALLED;
477 }
478
479 /* This function is called to start reading batch scan reports */
BTM_BleReadScanReports(tBTM_BLE_BATCH_SCAN_MODE scan_mode,tBTM_BLE_SCAN_REP_CBACK cb)480 void BTM_BleReadScanReports(tBTM_BLE_BATCH_SCAN_MODE scan_mode,
481 tBTM_BLE_SCAN_REP_CBACK cb) {
482 uint8_t read_scan_mode = 0;
483
484 BTM_TRACE_EVENT("%s; %d", __func__, scan_mode);
485
486 if (!can_do_batch_scan()) {
487 BTM_TRACE_ERROR("Controller does not support batch scan");
488 cb.Run(BTM_ERR_PROCESSING, 0, 0, {});
489 return;
490 }
491
492 /* Check if the requested scan mode has already been setup by the user */
493 read_scan_mode = ble_batchscan_cb.scan_mode & BTM_BLE_BATCH_SCAN_MODE_ACTI;
494 if (0 == read_scan_mode)
495 read_scan_mode = ble_batchscan_cb.scan_mode & BTM_BLE_BATCH_SCAN_MODE_PASS;
496
497 /* Check only for modes, as scan reports can be called after disabling batch
498 * scan */
499 if (read_scan_mode < 0 || (scan_mode != BTM_BLE_BATCH_SCAN_MODE_PASS &&
500 scan_mode != BTM_BLE_BATCH_SCAN_MODE_ACTI)) {
501 BTM_TRACE_ERROR("Illegal read scan params: %d, %d, %d", read_scan_mode,
502 scan_mode, ble_batchscan_cb.cur_state);
503 cb.Run(BTM_ILLEGAL_VALUE, 0, 0, {});
504 return;
505 }
506
507 btm_ble_read_batchscan_reports(
508 scan_mode, base::Bind(&read_reports_cb, std::vector<uint8_t>(), 0, cb));
509 return;
510 }
511
512 /* This function is called to setup the callback for tracking */
BTM_BleTrackAdvertiser(tBTM_BLE_TRACK_ADV_CBACK * p_track_cback,tBTM_BLE_REF_VALUE ref_value)513 void BTM_BleTrackAdvertiser(tBTM_BLE_TRACK_ADV_CBACK* p_track_cback,
514 tBTM_BLE_REF_VALUE ref_value) {
515 BTM_TRACE_EVENT("%s:", __func__);
516
517 if (!can_do_batch_scan()) {
518 BTM_TRACE_ERROR("Controller does not support batch scan");
519
520 tBTM_BLE_TRACK_ADV_DATA track_adv_data;
521 memset(&track_adv_data, 0, sizeof(tBTM_BLE_TRACK_ADV_DATA));
522 track_adv_data.advertiser_info_present =
523 NO_ADV_INFO_PRESENT; /* Indicates failure */
524 track_adv_data.client_if = (uint8_t)ref_value;
525 p_track_cback(&track_adv_data);
526 return;
527 }
528
529 ble_advtrack_cb.p_track_cback = p_track_cback;
530 ble_advtrack_cb.ref_value = ref_value;
531 return;
532 }
533
534 /**
535 * This function initialize the batch scan control block.
536 **/
btm_ble_batchscan_init(void)537 void btm_ble_batchscan_init(void) {
538 BTM_TRACE_EVENT(" btm_ble_batchscan_init");
539 memset(&ble_batchscan_cb, 0, sizeof(tBTM_BLE_BATCH_SCAN_CB));
540 memset(&ble_advtrack_cb, 0, sizeof(tBTM_BLE_ADV_TRACK_CB));
541 BTM_RegisterForVSEvents(btm_ble_batchscan_filter_track_adv_vse_cback, true);
542 }
543
544 /**
545 * This function cleans the batch scan control block.
546 **/
btm_ble_batchscan_cleanup(void)547 void btm_ble_batchscan_cleanup(void) {
548 BTM_TRACE_EVENT("%s", __func__);
549
550 memset(&ble_batchscan_cb, 0, sizeof(tBTM_BLE_BATCH_SCAN_CB));
551 memset(&ble_advtrack_cb, 0, sizeof(tBTM_BLE_ADV_TRACK_CB));
552 }
553