btif/co/bta_hh_co.c

   1 /******************************************************************************
   2  *
   3  *  Copyright (C) 2009-2012 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
  19 //#if (defined(BTA_HH_INCLUDED) && (BTA_HH_INCLUDED == TRUE))
  20
  21 #include <ctype.h>
  22 #include <fcntl.h>
  23 #include <sys/poll.h>
  24 #include <pthread.h>
  25 #include <stdio.h>
  26 #include <string.h>
  27 #include <stdint.h>
  28 #include <errno.h>
  29 #include <linux/uhid.h>
  30 #include "btif_hh.h"
  31 #include "bta_api.h"
  32 #include "bta_hh_api.h"
  33 #include "btif_util.h"
  34 #include "bta_hh_co.h"
  35
  36 const char *dev_path = "/dev/uhid";
  37
  38 #if (BLE_INCLUDED == TRUE && BTA_HH_LE_INCLUDED == TRUE)
  39 #include "btif_config.h"
  40 #define BTA_HH_NV_LOAD_MAX       16
  41 static tBTA_HH_RPT_CACHE_ENTRY sReportCache[BTA_HH_NV_LOAD_MAX];
  42 #endif
  43
  44 /*Internal function to perform UHID write and error checking*/
  45 static int uhid_write(int fd, const struct uhid_event *ev)
  46 {
  47     ssize_t ret;
  48     ret = write(fd, ev, sizeof(*ev));
  49     if (ret < 0){
  50         int rtn = -errno;
  51         APPL_TRACE_ERROR("%s: Cannot write to uhid:%s", __FUNCTION__, strerror(errno));
  52         return rtn;
  53     } else if (ret != sizeof(*ev)) {
  54         APPL_TRACE_ERROR("%s: Wrong size written to uhid: %ld != %lu",
  55                                                     __FUNCTION__, ret, sizeof(*ev));
  56         return -EFAULT;
  57     } else {
  58         return 0;
  59     }
  60 }
  61
  62 /* Internal function to parse the events received from UHID driver*/
  63 static int uhid_event(btif_hh_device_t *p_dev)
  64 {
  65     struct uhid_event ev;
  66     ssize_t ret;
  67     memset(&ev, 0, sizeof(ev));
  68     if(!p_dev)
  69     {
  70         APPL_TRACE_ERROR("%s: Device not found",__FUNCTION__)
  71         return -1;
  72     }
  73     ret = read(p_dev->fd, &ev, sizeof(ev));
  74     if (ret == 0) {
  75         APPL_TRACE_ERROR("%s: Read HUP on uhid-cdev %s", __FUNCTION__,
  76                                                  strerror(errno));
  77         return -EFAULT;
  78     } else if (ret < 0) {
  79         APPL_TRACE_ERROR("%s:Cannot read uhid-cdev: %s", __FUNCTION__,
  80                                                 strerror(errno));
  81         return -errno;
  82     } else if (ret != sizeof(ev)) {
  83         APPL_TRACE_ERROR("%s:Invalid size read from uhid-dev: %ld != %lu",
  84                             __FUNCTION__, ret, sizeof(ev));
  85         return -EFAULT;
  86     }
  87
  88     switch (ev.type) {
  89     case UHID_START:
  90         APPL_TRACE_DEBUG("UHID_START from uhid-dev\n");
  91         break;
  92     case UHID_STOP:
  93         APPL_TRACE_DEBUG("UHID_STOP from uhid-dev\n");
  94         break;
  95     case UHID_OPEN:
  96         APPL_TRACE_DEBUG("UHID_OPEN from uhid-dev\n");
  97         break;
  98     case UHID_CLOSE:
  99         APPL_TRACE_DEBUG("UHID_CLOSE from uhid-dev\n");
 100         break;
 101     case UHID_OUTPUT:
 102         APPL_TRACE_DEBUG("UHID_OUTPUT: Report type = %d, report_size = %d"
 103                             ,ev.u.output.rtype, ev.u.output.size);
 104         //Send SET_REPORT with feature report if the report type in output event is FEATURE
 105         if(ev.u.output.rtype == UHID_FEATURE_REPORT)
 106             btif_hh_setreport(p_dev,BTHH_FEATURE_REPORT,ev.u.output.size,ev.u.output.data);
 107         else if(ev.u.output.rtype == UHID_OUTPUT_REPORT)
 108             btif_hh_setreport(p_dev,BTHH_OUTPUT_REPORT,ev.u.output.size,ev.u.output.data);
 109         else
 110             btif_hh_setreport(p_dev,BTHH_INPUT_REPORT,ev.u.output.size,ev.u.output.data);
 111            break;
 112     case UHID_OUTPUT_EV:
 113         APPL_TRACE_DEBUG("UHID_OUTPUT_EV from uhid-dev\n");
 114         break;
 115     case UHID_FEATURE:
 116         APPL_TRACE_DEBUG("UHID_FEATURE from uhid-dev\n");
 117         break;
 118     case UHID_FEATURE_ANSWER:
 119         APPL_TRACE_DEBUG("UHID_FEATURE_ANSWER from uhid-dev\n");
 120         break;
 121
 122     default:
 123         APPL_TRACE_DEBUG("Invalid event from uhid-dev: %u\n", ev.type);
 124     }
 125
 126     return 0;
 127 }
 128
 129 /*******************************************************************************
 130 **
 131 ** Function create_thread
 132 **
 133 ** Description creat a select loop
 134 **
 135 ** Returns pthread_t
 136 **
 137 *******************************************************************************/
 138 static inline pthread_t create_thread(void *(*start_routine)(void *), void * arg){
 139     APPL_TRACE_DEBUG("create_thread: entered");
 140     pthread_attr_t thread_attr;
 141
 142     pthread_attr_init(&thread_attr);
 143     pthread_attr_setdetachstate(&thread_attr, PTHREAD_CREATE_JOINABLE);
 144     pthread_t thread_id = -1;
 145     if ( pthread_create(&thread_id, &thread_attr, start_routine, arg)!=0 )
 146     {
 147         APPL_TRACE_ERROR("pthread_create : %s", strerror(errno));
 148         return -1;
 149     }
 150     APPL_TRACE_DEBUG("create_thread: thread created successfully");
 151     return thread_id;
 152 }
 153
 154 /*******************************************************************************
 155 **
 156 ** Function btif_hh_poll_event_thread
 157 **
 158 ** Description the polling thread which polls for event from UHID driver
 159 **
 160 ** Returns void
 161 **
 162 *******************************************************************************/
 163 static void *btif_hh_poll_event_thread(void *arg)
 164 {
 165
 166     btif_hh_device_t *p_dev = arg;
 167     APPL_TRACE_DEBUG("%s: Thread created fd = %d", __FUNCTION__, p_dev->fd);
 168     struct pollfd pfds[1];
 169     int ret;
 170     pfds[0].fd = p_dev->fd;
 171     pfds[0].events = POLLIN;
 172
 173     while(p_dev->hh_keep_polling){
 174         ret = poll(pfds, 1, 50);
 175         if (ret < 0) {
 176             APPL_TRACE_ERROR("%s: Cannot poll for fds: %s\n", __FUNCTION__, strerror(errno));
 177             break;
 178         }
 179         if (pfds[0].revents & POLLIN) {
 180             APPL_TRACE_DEBUG("btif_hh_poll_event_thread: POLLIN");
 181             ret = uhid_event(p_dev);
 182             if (ret){
 183                 break;
 184             }
 185         }
 186     }
 187
 188     p_dev->hh_poll_thread_id = -1;
 189     return 0;
 190 }
 191
 192 static inline void btif_hh_close_poll_thread(btif_hh_device_t *p_dev)
 193 {
 194     APPL_TRACE_DEBUG("%s", __FUNCTION__);
 195     p_dev->hh_keep_polling = 0;
 196     if(p_dev->hh_poll_thread_id > 0)
 197         pthread_join(p_dev->hh_poll_thread_id,NULL);
 198
 199     return;
 200 }
 201
 202 void bta_hh_co_destroy(int fd)
 203 {
 204     struct uhid_event ev;
 205     memset(&ev, 0, sizeof(ev));
 206     ev.type = UHID_DESTROY;
 207     uhid_write(fd, &ev);
 208     close(fd);
 209 }
 210
 211 int bta_hh_co_write(int fd, UINT8* rpt, UINT16 len)
 212 {
 213     APPL_TRACE_DEBUG("bta_hh_co_data: UHID write");
 214     struct uhid_event ev;
 215     memset(&ev, 0, sizeof(ev));
 216     ev.type = UHID_INPUT;
 217     ev.u.input.size = len;
 218     if(len > sizeof(ev.u.input.data)){
 219         APPL_TRACE_WARNING("%s:report size greater than allowed size",__FUNCTION__);
 220         return -1;
 221     }
 222     memcpy(ev.u.input.data, rpt, len);
 223     return uhid_write(fd, &ev);
 224
 225 }
 226
 227
 228 /*******************************************************************************
 229 **
 230 ** Function      bta_hh_co_open
 231 **
 232 ** Description   When connection is opened, this call-out function is executed
 233 **               by HH to do platform specific initialization.
 234 **
 235 ** Returns       void.
 236 *******************************************************************************/
 237 void bta_hh_co_open(UINT8 dev_handle, UINT8 sub_class, tBTA_HH_ATTR_MASK attr_mask,
 238                     UINT8 app_id)
 239 {
 240     UINT32 i;
 241     btif_hh_device_t *p_dev = NULL;
 242
 243     if (dev_handle == BTA_HH_INVALID_HANDLE) {
 244         APPL_TRACE_WARNING("%s: Oops, dev_handle (%d) is invalid...", __FUNCTION__, dev_handle);
 245         return;
 246     }
 247
 248     for (i = 0; i < BTIF_HH_MAX_HID; i++) {
 249         p_dev = &btif_hh_cb.devices[i];
 250         if (p_dev->dev_status != BTHH_CONN_STATE_UNKNOWN && p_dev->dev_handle == dev_handle) {
 251             // We found a device with the same handle. Must be a device reconnected.
 252             APPL_TRACE_WARNING("%s: Found an existing device with the same handle "
 253                                                                 "dev_status = %d",__FUNCTION__,
 254                                                                 p_dev->dev_status);
 255             APPL_TRACE_WARNING("%s:     bd_addr = [%02X:%02X:%02X:%02X:%02X:]", __FUNCTION__,
 256                  p_dev->bd_addr.address[0], p_dev->bd_addr.address[1], p_dev->bd_addr.address[2],
 257                  p_dev->bd_addr.address[3], p_dev->bd_addr.address[4]);
 258                  APPL_TRACE_WARNING("%s:     attr_mask = 0x%04x, sub_class = 0x%02x, app_id = %d",
 259                                   __FUNCTION__, p_dev->attr_mask, p_dev->sub_class, p_dev->app_id);
 260
 261             if(p_dev->fd<0) {
 262                 p_dev->fd = open(dev_path, O_RDWR | O_CLOEXEC);
 263                 if (p_dev->fd < 0){
 264                     APPL_TRACE_ERROR("%s: Error: failed to open uhid, err:%s",
 265                                                                     __FUNCTION__,strerror(errno));
 266                 }else
 267                     APPL_TRACE_DEBUG("%s: uhid fd = %d", __FUNCTION__, p_dev->fd);
 268             }
 269             p_dev->hh_keep_polling = 1;
 270             p_dev->hh_poll_thread_id = create_thread(btif_hh_poll_event_thread, p_dev);
 271             break;
 272         }
 273         p_dev = NULL;
 274     }
 275
 276     if (p_dev == NULL) {
 277         // Did not find a device reconnection case. Find an empty slot now.
 278         for (i = 0; i < BTIF_HH_MAX_HID; i++) {
 279             if (btif_hh_cb.devices[i].dev_status == BTHH_CONN_STATE_UNKNOWN) {
 280                 p_dev = &btif_hh_cb.devices[i];
 281                 p_dev->dev_handle = dev_handle;
 282                 p_dev->attr_mask  = attr_mask;
 283                 p_dev->sub_class  = sub_class;
 284                 p_dev->app_id     = app_id;
 285                 p_dev->local_vup  = FALSE;
 286
 287                 btif_hh_cb.device_num++;
 288                 // This is a new device,open the uhid driver now.
 289                 p_dev->fd = open(dev_path, O_RDWR | O_CLOEXEC);
 290                 if (p_dev->fd < 0){
 291                     APPL_TRACE_ERROR("%s: Error: failed to open uhid, err:%s",
 292                                                                     __FUNCTION__,strerror(errno));
 293                 }else{
 294                     APPL_TRACE_DEBUG("%s: uhid fd = %d", __FUNCTION__, p_dev->fd);
 295                     p_dev->hh_keep_polling = 1;
 296                     p_dev->hh_poll_thread_id = create_thread(btif_hh_poll_event_thread, p_dev);
 297                 }
 298
 299
 300                 break;
 301             }
 302         }
 303     }
 304
 305     if (p_dev == NULL) {
 306         APPL_TRACE_ERROR("%s: Error: too many HID devices are connected", __FUNCTION__);
 307         return;
 308     }
 309
 310     p_dev->dev_status = BTHH_CONN_STATE_CONNECTED;
 311     APPL_TRACE_DEBUG("%s: Return device status %d", __FUNCTION__, p_dev->dev_status);
 312 }
 313
 314
 315 /*******************************************************************************
 316 **
 317 ** Function      bta_hh_co_close
 318 **
 319 ** Description   When connection is closed, this call-out function is executed
 320 **               by HH to do platform specific finalization.
 321 **
 322 ** Parameters    dev_handle  - device handle
 323 **                  app_id      - application id
 324 **
 325 ** Returns          void.
 326 *******************************************************************************/
 327 void bta_hh_co_close(UINT8 dev_handle, UINT8 app_id)
 328 {
 329     UINT32 i;
 330     btif_hh_device_t *p_dev = NULL;
 331
 332     APPL_TRACE_WARNING("%s: dev_handle = %d, app_id = %d", __FUNCTION__, dev_handle, app_id);
 333     if (dev_handle == BTA_HH_INVALID_HANDLE) {
 334         APPL_TRACE_WARNING("%s: Oops, dev_handle (%d) is invalid...", __FUNCTION__, dev_handle);
 335         return;
 336     }
 337
 338     for (i = 0; i < BTIF_HH_MAX_HID; i++) {
 339         p_dev = &btif_hh_cb.devices[i];
 340         if (p_dev->dev_status != BTHH_CONN_STATE_UNKNOWN && p_dev->dev_handle == dev_handle) {
 341             APPL_TRACE_WARNING("%s: Found an existing device with the same handle "
 342                                                         "dev_status = %d, dev_handle =%d"
 343                                                         ,__FUNCTION__,p_dev->dev_status
 344                                                         ,p_dev->dev_handle);
 345             btif_hh_close_poll_thread(p_dev);
 346             break;
 347         }
 348      }
 349 }
 350
 351
 352 /*******************************************************************************
 353 **
 354 ** Function         bta_hh_co_data
 355 **
 356 ** Description      This function is executed by BTA when HID host receive a data
 357 **                  report.
 358 **
 359 ** Parameters       dev_handle  - device handle
 360 **                  *p_rpt      - pointer to the report data
 361 **                  len         - length of report data
 362 **                  mode        - Hid host Protocol Mode
 363 **                  sub_clas    - Device Subclass
 364 **                  app_id      - application id
 365 **
 366 ** Returns          void
 367 *******************************************************************************/
 368 void bta_hh_co_data(UINT8 dev_handle, UINT8 *p_rpt, UINT16 len, tBTA_HH_PROTO_MODE mode,
 369                     UINT8 sub_class, UINT8 ctry_code, BD_ADDR peer_addr, UINT8 app_id)
 370 {
 371     btif_hh_device_t *p_dev;
 372     UNUSED(peer_addr);
 373
 374     APPL_TRACE_DEBUG("%s: dev_handle = %d, subclass = 0x%02X, mode = %d, "
 375          "ctry_code = %d, app_id = %d",
 376          __FUNCTION__, dev_handle, sub_class, mode, ctry_code, app_id);
 377
 378     p_dev = btif_hh_find_connected_dev_by_handle(dev_handle);
 379     if (p_dev == NULL) {
 380         APPL_TRACE_WARNING("%s: Error: unknown HID device handle %d", __FUNCTION__, dev_handle);
 381         return;
 382     }
 383     // Send the HID report to the kernel.
 384     if (p_dev->fd >= 0) {
 385         bta_hh_co_write(p_dev->fd, p_rpt, len);
 386     }else {
 387         APPL_TRACE_WARNING("%s: Error: fd = %d, len = %d", __FUNCTION__, p_dev->fd, len);
 388     }
 389 }
 390
 391
 392 /*******************************************************************************
 393 **
 394 ** Function         bta_hh_co_send_hid_info
 395 **
 396 ** Description      This function is called in btif_hh.c to process DSCP received.
 397 **
 398 ** Parameters       dev_handle  - device handle
 399 **                  dscp_len    - report descriptor length
 400 **                  *p_dscp     - report descriptor
 401 **
 402 ** Returns          void
 403 *******************************************************************************/
 404 void bta_hh_co_send_hid_info(btif_hh_device_t *p_dev, char *dev_name, UINT16 vendor_id,
 405                              UINT16 product_id, UINT16 version, UINT8 ctry_code,
 406                              int dscp_len, UINT8 *p_dscp)
 407 {
 408     int result;
 409     struct uhid_event ev;
 410
 411     if (p_dev->fd < 0) {
 412         APPL_TRACE_WARNING("%s: Error: fd = %d, dscp_len = %d", __FUNCTION__, p_dev->fd, dscp_len);
 413         return;
 414     }
 415
 416     APPL_TRACE_WARNING("%s: fd = %d, name = [%s], dscp_len = %d", __FUNCTION__,
 417                                                                     p_dev->fd, dev_name, dscp_len);
 418     APPL_TRACE_WARNING("%s: vendor_id = 0x%04x, product_id = 0x%04x, version= 0x%04x,"
 419                                                                     "ctry_code=0x%02x",__FUNCTION__,
 420                                                                     vendor_id, product_id,
 421                                                                     version, ctry_code);
 422
 423 //Create and send hid descriptor to kernel
 424     memset(&ev, 0, sizeof(ev));
 425     ev.type = UHID_CREATE;
 426     strncpy((char*)ev.u.create.name, dev_name, sizeof(ev.u.create.name) - 1);
 427     snprintf((char*)ev.u.create.uniq, sizeof(ev.u.create.uniq),
 428              "%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X",
 429              p_dev->bd_addr.address[5], p_dev->bd_addr.address[4],
 430              p_dev->bd_addr.address[3], p_dev->bd_addr.address[2],
 431              p_dev->bd_addr.address[1], p_dev->bd_addr.address[0]);
 432     ev.u.create.rd_size = dscp_len;
 433     ev.u.create.rd_data = p_dscp;
 434     ev.u.create.bus = BUS_BLUETOOTH;
 435     ev.u.create.vendor = vendor_id;
 436     ev.u.create.product = product_id;
 437     ev.u.create.version = version;
 438     ev.u.create.country = ctry_code;
 439     result = uhid_write(p_dev->fd, &ev);
 440
 441     APPL_TRACE_WARNING("%s: fd = %d, dscp_len = %d, result = %d", __FUNCTION__,
 442                                                                     p_dev->fd, dscp_len, result);
 443
 444     if (result) {
 445         APPL_TRACE_WARNING("%s: Error: failed to send DSCP, result = %d", __FUNCTION__, result);
 446
 447         /* The HID report descriptor is corrupted. Close the driver. */
 448         close(p_dev->fd);
 449         p_dev->fd = -1;
 450     }
 451 }
 452
 453 #if (BLE_INCLUDED == TRUE && BTA_HH_LE_INCLUDED == TRUE)
 454 /*******************************************************************************
 455 **
 456 ** Function         bta_hh_le_co_rpt_info
 457 **
 458 ** Description      This callout function is to convey the report information on
 459 **                  a HOGP device to the application. Application can save this
 460 **                  information in NV if device is bonded and load it back when
 461 **                  stack reboot.
 462 **
 463 ** Parameters       remote_bda  - remote device address
 464 **                  p_entry     - report entry pointer
 465 **                  app_id      - application id
 466 **
 467 ** Returns          void.
 468 **
 469 *******************************************************************************/
 470 void bta_hh_le_co_rpt_info(BD_ADDR remote_bda, tBTA_HH_RPT_CACHE_ENTRY *p_entry, UINT8 app_id)
 471 {
 472     UNUSED(app_id);
 473
 474     unsigned len = 0;
 475     unsigned type = 0;
 476     unsigned idx = 0;
 477
 478     bdstr_t bdstr;
 479     sprintf(bdstr, "%02x:%02x:%02x:%02x:%02x:%02x",
 480         remote_bda[0], remote_bda[1], remote_bda[2],
 481         remote_bda[3], remote_bda[4], remote_bda[5]);
 482
 483     btif_config_get("Remote", bdstr, "HidReport", NULL, (int*)&len, (int*)&type);
 484     if (len >= sizeof(tBTA_HH_RPT_CACHE_ENTRY) && len <= sizeof(sReportCache))
 485     {
 486         btif_config_get("Remote", bdstr, "HidReport", (char*)sReportCache, (int*)&len, (int*)&type);
 487         idx = len / sizeof(tBTA_HH_RPT_CACHE_ENTRY);
 488     }
 489
 490     if (idx < BTA_HH_NV_LOAD_MAX)
 491     {
 492         memcpy(&sReportCache[idx++], p_entry, sizeof(tBTA_HH_RPT_CACHE_ENTRY));
 493         btif_config_set("Remote", bdstr, "HidReport", (const char*)sReportCache,
 494             idx * sizeof(tBTA_HH_RPT_CACHE_ENTRY), BTIF_CFG_TYPE_BIN);
 495         BTIF_TRACE_DEBUG("%s() - Saving report; dev=%s, idx=%d", __FUNCTION__, bdstr, idx);
 496     }
 497 }
 498
 499
 500 /*******************************************************************************
 501 **
 502 ** Function         bta_hh_le_co_cache_load
 503 **
 504 ** Description      This callout function is to request the application to load the
 505 **                  cached HOGP report if there is any. When cache reading is completed,
 506 **                  bta_hh_le_ci_cache_load() is called by the application.
 507 **
 508 ** Parameters       remote_bda  - remote device address
 509 **                  p_num_rpt: number of cached report
 510 **                  app_id      - application id
 511 **
 512 ** Returns          the acched report array
 513 **
 514 *******************************************************************************/
 515 tBTA_HH_RPT_CACHE_ENTRY * bta_hh_le_co_cache_load (BD_ADDR remote_bda,
 516                                                    UINT8 *p_num_rpt, UINT8 app_id)
 517 {
 518     UNUSED(app_id);
 519
 520     unsigned len = 0;
 521     unsigned type = 0;
 522     unsigned idx = 0;
 523
 524     bdstr_t bdstr;
 525     sprintf(bdstr, "%02x:%02x:%02x:%02x:%02x:%02x",
 526         remote_bda[0], remote_bda[1], remote_bda[2],
 527         remote_bda[3], remote_bda[4], remote_bda[5]);
 528
 529     btif_config_get("Remote", bdstr, "HidReport", NULL, (int*)&len, (int*)&type);
 530     if (!p_num_rpt && len < sizeof(tBTA_HH_RPT_CACHE_ENTRY))
 531         return NULL;
 532
 533     if (len > sizeof(sReportCache))
 534         len = sizeof(sReportCache);
 535     btif_config_get("Remote", bdstr, "HidReport", (char*)sReportCache, (int*)&len, (int*)&type);
 536     *p_num_rpt = len / sizeof(tBTA_HH_RPT_CACHE_ENTRY);
 537
 538     BTIF_TRACE_DEBUG("%s() - Loaded %d reports; dev=%s", __FUNCTION__, *p_num_rpt, bdstr);
 539
 540     return sReportCache;
 541 }
 542
 543 /*******************************************************************************
 544 **
 545 ** Function         bta_hh_le_co_reset_rpt_cache
 546 **
 547 ** Description      This callout function is to reset the HOGP device cache.
 548 **
 549 ** Parameters       remote_bda  - remote device address
 550 **
 551 ** Returns          none
 552 **
 553 *******************************************************************************/
 554 void bta_hh_le_co_reset_rpt_cache (BD_ADDR remote_bda, UINT8 app_id)
 555 {
 556     UNUSED(app_id);
 557
 558     bdstr_t bdstr;
 559     sprintf(bdstr, "%02x:%02x:%02x:%02x:%02x:%02x",
 560         remote_bda[0], remote_bda[1], remote_bda[2],
 561         remote_bda[3], remote_bda[4], remote_bda[5]);
 562     btif_config_remove("Remote", bdstr, "HidReport");
 563
 564     BTIF_TRACE_DEBUG("%s() - Reset cache for bda %s", __FUNCTION__, bdstr);
 565 }
 566 #endif /* #if (BLE_INCLUDED == TRUE && BTA_HH_LE_INCLUDED == TRUE) */
 567