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      1 /******************************************************************************
      2  *
      3  *  Copyright 2016 The Android Open Source Project
      4  *  Copyright 2005-2012 Broadcom Corporation
      5  *
      6  *  Licensed under the Apache License, Version 2.0 (the "License");
      7  *  you may not use this file except in compliance with the License.
      8  *  You may obtain a copy of the License at:
      9  *
     10  *  http://www.apache.org/licenses/LICENSE-2.0
     11  *
     12  *  Unless required by applicable law or agreed to in writing, software
     13  *  distributed under the License is distributed on an "AS IS" BASIS,
     14  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15  *  See the License for the specific language governing permissions and
     16  *  limitations under the License.
     17  *
     18  ******************************************************************************/
     19 
     20 /******************************************************************************
     21  *
     22  *  This file contains the HID DEVICE API in the subsystem of BTA.
     23  *
     24  ******************************************************************************/
     25 
     26 #include "bt_target.h"
     27 
     28 #if defined(BTA_HD_INCLUDED) && (BTA_HD_INCLUDED == TRUE)
     29 
     30 #include <stdio.h>
     31 #include <stdlib.h>
     32 #include <string.h>
     33 
     34 #include "bta_hd_api.h"
     35 #include "bta_hd_int.h"
     36 
     37 /*****************************************************************************
     38  *  Constants
     39  ****************************************************************************/
     40 
     41 static const tBTA_SYS_REG bta_hd_reg = {bta_hd_hdl_event, BTA_HdDisable};
     42 
     43 /*******************************************************************************
     44  *
     45  * Function         BTA_HdEnable
     46  *
     47  * Description      Enables HID device
     48  *
     49  * Returns          void
     50  *
     51  ******************************************************************************/
     52 void BTA_HdEnable(tBTA_HD_CBACK* p_cback) {
     53   APPL_TRACE_API("%s", __func__);
     54 
     55   bta_sys_register(BTA_ID_HD, &bta_hd_reg);
     56 
     57   tBTA_HD_API_ENABLE* p_buf =
     58       (tBTA_HD_API_ENABLE*)osi_malloc((uint16_t)sizeof(tBTA_HD_API_ENABLE));
     59 
     60   memset(p_buf, 0, sizeof(tBTA_HD_API_ENABLE));
     61 
     62   p_buf->hdr.event = BTA_HD_API_ENABLE_EVT;
     63   p_buf->p_cback = p_cback;
     64 
     65   bta_sys_sendmsg(p_buf);
     66 }
     67 
     68 /*******************************************************************************
     69  *
     70  * Function         BTA_HdDisable
     71  *
     72  * Description      Disables HID device.
     73  *
     74  * Returns          void
     75  *
     76  ******************************************************************************/
     77 void BTA_HdDisable(void) {
     78   APPL_TRACE_API("%s", __func__);
     79 
     80   bta_sys_deregister(BTA_ID_HD);
     81 
     82   BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
     83   p_buf->event = BTA_HD_API_DISABLE_EVT;
     84   bta_sys_sendmsg(p_buf);
     85 }
     86 
     87 /*******************************************************************************
     88  *
     89  * Function         BTA_HdRegisterApp
     90  *
     91  * Description      This function is called when application should be
     92 *registered
     93  *
     94  * Returns          void
     95  *
     96  ******************************************************************************/
     97 extern void BTA_HdRegisterApp(tBTA_HD_APP_INFO* p_app_info,
     98                               tBTA_HD_QOS_INFO* p_in_qos,
     99                               tBTA_HD_QOS_INFO* p_out_qos) {
    100   APPL_TRACE_API("%s", __func__);
    101 
    102   tBTA_HD_REGISTER_APP* p_buf =
    103       (tBTA_HD_REGISTER_APP*)osi_malloc(sizeof(tBTA_HD_REGISTER_APP));
    104   p_buf->hdr.event = BTA_HD_API_REGISTER_APP_EVT;
    105 
    106   if (p_app_info->p_name) {
    107     strlcpy(p_buf->name, p_app_info->p_name, BTA_HD_APP_NAME_LEN);
    108   } else {
    109     p_buf->name[0] = '\0';
    110   }
    111 
    112   if (p_app_info->p_description) {
    113     strlcpy(p_buf->description, p_app_info->p_description,
    114             BTA_HD_APP_DESCRIPTION_LEN);
    115   } else {
    116     p_buf->description[0] = '\0';
    117   }
    118 
    119   if (p_app_info->p_provider) {
    120     strlcpy(p_buf->provider, p_app_info->p_provider, BTA_HD_APP_PROVIDER_LEN);
    121   } else {
    122     p_buf->provider[0] = '\0';
    123   }
    124 
    125   p_buf->subclass = p_app_info->subclass;
    126 
    127   p_buf->d_len = p_app_info->descriptor.dl_len;
    128   memcpy(p_buf->d_data, p_app_info->descriptor.dsc_list,
    129          p_app_info->descriptor.dl_len);
    130 
    131   // copy qos data as-is
    132   memcpy(&p_buf->in_qos, p_in_qos, sizeof(tBTA_HD_QOS_INFO));
    133   memcpy(&p_buf->out_qos, p_out_qos, sizeof(tBTA_HD_QOS_INFO));
    134 
    135   bta_sys_sendmsg(p_buf);
    136 }
    137 
    138 /*******************************************************************************
    139  *
    140  * Function         BTA_HdUnregisterApp
    141  *
    142  * Description      This function is called when application should be
    143 *unregistered
    144  *
    145  * Returns          void
    146  *
    147  ******************************************************************************/
    148 extern void BTA_HdUnregisterApp(void) {
    149   APPL_TRACE_API("%s", __func__);
    150 
    151   BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
    152   p_buf->event = BTA_HD_API_UNREGISTER_APP_EVT;
    153 
    154   bta_sys_sendmsg(p_buf);
    155 }
    156 
    157 /*******************************************************************************
    158  *
    159  * Function         BTA_HdSendReport
    160  *
    161  * Description      This function is called when report is to be sent
    162  *
    163  * Returns          void
    164  *
    165  ******************************************************************************/
    166 extern void BTA_HdSendReport(tBTA_HD_REPORT* p_report) {
    167   APPL_TRACE_VERBOSE("%s", __func__);
    168 
    169   if (p_report->len > BTA_HD_REPORT_LEN) {
    170     APPL_TRACE_WARNING(
    171         "%s, report len (%d) > MTU len (%d), can't send report."
    172         " Increase value of HID_DEV_MTU_SIZE to send larger reports",
    173         __func__, p_report->len, BTA_HD_REPORT_LEN);
    174     return;
    175   }
    176 
    177   tBTA_HD_SEND_REPORT* p_buf =
    178       (tBTA_HD_SEND_REPORT*)osi_malloc(sizeof(tBTA_HD_SEND_REPORT));
    179   p_buf->hdr.event = BTA_HD_API_SEND_REPORT_EVT;
    180 
    181   p_buf->use_intr = p_report->use_intr;
    182   p_buf->type = p_report->type;
    183   p_buf->id = p_report->id;
    184   p_buf->len = p_report->len;
    185   memcpy(p_buf->data, p_report->p_data, p_report->len);
    186 
    187   bta_sys_sendmsg(p_buf);
    188 }
    189 
    190 /*******************************************************************************
    191  *
    192  * Function         BTA_HdVirtualCableUnplug
    193  *
    194  * Description      This function is called when VCU shall be sent
    195  *
    196  * Returns          void
    197  *
    198  ******************************************************************************/
    199 extern void BTA_HdVirtualCableUnplug(void) {
    200   APPL_TRACE_API("%s", __func__);
    201 
    202   BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
    203   p_buf->event = BTA_HD_API_VC_UNPLUG_EVT;
    204 
    205   bta_sys_sendmsg(p_buf);
    206 }
    207 
    208 /*******************************************************************************
    209  *
    210  * Function         BTA_HdConnect
    211  *
    212  * Description      This function is called when connection to host shall be
    213 *made
    214  *
    215  * Returns          void
    216  *
    217  ******************************************************************************/
    218 extern void BTA_HdConnect(const RawAddress& addr) {
    219   APPL_TRACE_API("%s", __func__);
    220 
    221   tBTA_HD_DEVICE_CTRL* p_buf =
    222       (tBTA_HD_DEVICE_CTRL*)osi_malloc(sizeof(tBTA_HD_DEVICE_CTRL));
    223   p_buf->hdr.event = BTA_HD_API_CONNECT_EVT;
    224 
    225   p_buf->addr = addr;
    226 
    227   bta_sys_sendmsg(p_buf);
    228 }
    229 
    230 /*******************************************************************************
    231  *
    232  * Function         BTA_HdDisconnect
    233  *
    234  * Description      This function is called when host shall be disconnected
    235  *
    236  * Returns          void
    237  *
    238  ******************************************************************************/
    239 extern void BTA_HdDisconnect(void) {
    240   APPL_TRACE_API("%s", __func__);
    241   BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
    242   p_buf->event = BTA_HD_API_DISCONNECT_EVT;
    243 
    244   bta_sys_sendmsg(p_buf);
    245 }
    246 
    247 /*******************************************************************************
    248  *
    249  * Function         BTA_HdAddDevice
    250  *
    251  * Description      This function is called when a device is virtually cabled
    252  *
    253  * Returns          void
    254  *
    255  ******************************************************************************/
    256 extern void BTA_HdAddDevice(const RawAddress& addr) {
    257   APPL_TRACE_API("%s", __func__);
    258   tBTA_HD_DEVICE_CTRL* p_buf =
    259       (tBTA_HD_DEVICE_CTRL*)osi_malloc(sizeof(tBTA_HD_DEVICE_CTRL));
    260   p_buf->hdr.event = BTA_HD_API_ADD_DEVICE_EVT;
    261 
    262   p_buf->addr = addr;
    263 
    264   bta_sys_sendmsg(p_buf);
    265 }
    266 
    267 /*******************************************************************************
    268  *
    269  * Function         BTA_HdRemoveDevice
    270  *
    271  * Description      This function is called when a device is virtually uncabled
    272  *
    273  * Returns          void
    274  *
    275  ******************************************************************************/
    276 extern void BTA_HdRemoveDevice(const RawAddress& addr) {
    277   APPL_TRACE_API("%s", __func__);
    278   tBTA_HD_DEVICE_CTRL* p_buf =
    279       (tBTA_HD_DEVICE_CTRL*)osi_malloc(sizeof(tBTA_HD_DEVICE_CTRL));
    280   p_buf->hdr.event = BTA_HD_API_REMOVE_DEVICE_EVT;
    281 
    282   p_buf->addr = addr;
    283 
    284   bta_sys_sendmsg(p_buf);
    285 }
    286 
    287 /*******************************************************************************
    288  *
    289  * Function         BTA_HdReportError
    290  *
    291  * Description      This function is called when reporting error for set report
    292  *
    293  * Returns          void
    294  *
    295  ******************************************************************************/
    296 extern void BTA_HdReportError(uint8_t error) {
    297   APPL_TRACE_API("%s", __func__);
    298   tBTA_HD_REPORT_ERR* p_buf =
    299       (tBTA_HD_REPORT_ERR*)osi_malloc(sizeof(tBTA_HD_REPORT_ERR));
    300   p_buf->hdr.event = BTA_HD_API_REPORT_ERROR_EVT;
    301   p_buf->error = error;
    302 
    303   bta_sys_sendmsg(p_buf);
    304 }
    305 
    306 #endif /* BTA_HD_INCLUDED */
    307