bta/hd/bta_hd_api.cc

/******************************************************************************
 *
 *  Copyright (C) 2016 The Android Open Source Project
 *  Copyright (C) 2005-2012 Broadcom Corporation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at:
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 ******************************************************************************/

/******************************************************************************
 *
 *  This file contains the HID DEVICE API in the subsystem of BTA.
 *
 ******************************************************************************/

#include "bt_target.h"

#if defined(BTA_HD_INCLUDED) && (BTA_HD_INCLUDED == TRUE)

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "bta_hd_api.h"
#include "bta_hd_int.h"

/*****************************************************************************
 *  Constants
 ****************************************************************************/

static const tBTA_SYS_REG bta_hd_reg = {bta_hd_hdl_event, BTA_HdDisable};

/*******************************************************************************
 *
 * Function         BTA_HdEnable
 *
 * Description      Enables HID device
 *
 * Returns          void
 *
 ******************************************************************************/
void BTA_HdEnable(tBTA_HD_CBACK* p_cback) {
  APPL_TRACE_API("%s", __func__);

  bta_sys_register(BTA_ID_HD, &bta_hd_reg);

  tBTA_HD_API_ENABLE* p_buf =
      (tBTA_HD_API_ENABLE*)osi_malloc((uint16_t)sizeof(tBTA_HD_API_ENABLE));

  memset(p_buf, 0, sizeof(tBTA_HD_API_ENABLE));

  p_buf->hdr.event = BTA_HD_API_ENABLE_EVT;
  p_buf->p_cback = p_cback;

  bta_sys_sendmsg(p_buf);
}

/*******************************************************************************
 *
 * Function         BTA_HdDisable
 *
 * Description      Disables HID device.
 *
 * Returns          void
 *
 ******************************************************************************/
void BTA_HdDisable(void) {
  APPL_TRACE_API("%s", __func__);

  bta_sys_deregister(BTA_ID_HD);

  BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
  p_buf->event = BTA_HD_API_DISABLE_EVT;
  bta_sys_sendmsg(p_buf);
}

/*******************************************************************************
 *
 * Function         BTA_HdRegisterApp
 *
 * Description      This function is called when application should be
*registered
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTA_HdRegisterApp(tBTA_HD_APP_INFO* p_app_info,
                              tBTA_HD_QOS_INFO* p_in_qos,
                              tBTA_HD_QOS_INFO* p_out_qos) {
  APPL_TRACE_API("%s", __func__);

  tBTA_HD_REGISTER_APP* p_buf =
      (tBTA_HD_REGISTER_APP*)osi_malloc(sizeof(tBTA_HD_REGISTER_APP));
  p_buf->hdr.event = BTA_HD_API_REGISTER_APP_EVT;

  if (p_app_info->p_name) {
    strncpy(p_buf->name, p_app_info->p_name, BTA_HD_APP_NAME_LEN);
    p_buf->name[BTA_HD_APP_NAME_LEN] = '\0';
  } else {
    p_buf->name[0] = '\0';
  }

  if (p_app_info->p_description) {
    strncpy(p_buf->description, p_app_info->p_description,
            BTA_HD_APP_DESCRIPTION_LEN);
    p_buf->description[BTA_HD_APP_DESCRIPTION_LEN] = '\0';
  } else {
    p_buf->description[0] = '\0';
  }

  if (p_app_info->p_provider) {
    strncpy(p_buf->provider, p_app_info->p_provider, BTA_HD_APP_PROVIDER_LEN);
    p_buf->provider[BTA_HD_APP_PROVIDER_LEN] = '\0';
  } else {
    p_buf->provider[0] = '\0';
  }

  p_buf->subclass = p_app_info->subclass;

  p_buf->d_len = p_app_info->descriptor.dl_len;
  memcpy(p_buf->d_data, p_app_info->descriptor.dsc_list,
         p_app_info->descriptor.dl_len);

  // copy qos data as-is
  memcpy(&p_buf->in_qos, p_in_qos, sizeof(tBTA_HD_QOS_INFO));
  memcpy(&p_buf->out_qos, p_out_qos, sizeof(tBTA_HD_QOS_INFO));

  bta_sys_sendmsg(p_buf);
}

/*******************************************************************************
 *
 * Function         BTA_HdUnregisterApp
 *
 * Description      This function is called when application should be
*unregistered
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTA_HdUnregisterApp(void) {
  APPL_TRACE_API("%s", __func__);

  BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
  p_buf->event = BTA_HD_API_UNREGISTER_APP_EVT;

  bta_sys_sendmsg(p_buf);
}

/*******************************************************************************
 *
 * Function         BTA_HdSendReport
 *
 * Description      This function is called when report is to be sent
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTA_HdSendReport(tBTA_HD_REPORT* p_report) {
  APPL_TRACE_VERBOSE("%s", __func__);

  if (p_report->len > BTA_HD_REPORT_LEN) {
    APPL_TRACE_WARNING(
        "%s, report len (%d) > MTU len (%d), can't send report."
        " Increase value of HID_DEV_MTU_SIZE to send larger reports",
        __func__, p_report->len, BTA_HD_REPORT_LEN);
    return;
  }

  tBTA_HD_SEND_REPORT* p_buf =
      (tBTA_HD_SEND_REPORT*)osi_malloc(sizeof(tBTA_HD_SEND_REPORT));
  p_buf->hdr.event = BTA_HD_API_SEND_REPORT_EVT;

  p_buf->use_intr = p_report->use_intr;
  p_buf->type = p_report->type;
  p_buf->id = p_report->id;
  p_buf->len = p_report->len;
  memcpy(p_buf->data, p_report->p_data, p_report->len);

  bta_sys_sendmsg(p_buf);
}

/*******************************************************************************
 *
 * Function         BTA_HdVirtualCableUnplug
 *
 * Description      This function is called when VCU shall be sent
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTA_HdVirtualCableUnplug(void) {
  APPL_TRACE_API("%s", __func__);

  BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
  p_buf->event = BTA_HD_API_VC_UNPLUG_EVT;

  bta_sys_sendmsg(p_buf);
}

/*******************************************************************************
 *
 * Function         BTA_HdConnect
 *
 * Description      This function is called when connection to host shall be
*made
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTA_HdConnect(const RawAddress& addr) {
  APPL_TRACE_API("%s", __func__);

  tBTA_HD_DEVICE_CTRL* p_buf =
      (tBTA_HD_DEVICE_CTRL*)osi_malloc(sizeof(tBTA_HD_DEVICE_CTRL));
  p_buf->hdr.event = BTA_HD_API_CONNECT_EVT;

  p_buf->addr = addr;

  bta_sys_sendmsg(p_buf);
}

/*******************************************************************************
 *
 * Function         BTA_HdDisconnect
 *
 * Description      This function is called when host shall be disconnected
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTA_HdDisconnect(void) {
  APPL_TRACE_API("%s", __func__);
  BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR));
  p_buf->event = BTA_HD_API_DISCONNECT_EVT;

  bta_sys_sendmsg(p_buf);
}

/*******************************************************************************
 *
 * Function         BTA_HdAddDevice
 *
 * Description      This function is called when a device is virtually cabled
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTA_HdAddDevice(const RawAddress& addr) {
  APPL_TRACE_API("%s", __func__);
  tBTA_HD_DEVICE_CTRL* p_buf =
      (tBTA_HD_DEVICE_CTRL*)osi_malloc(sizeof(tBTA_HD_DEVICE_CTRL));
  p_buf->hdr.event = BTA_HD_API_ADD_DEVICE_EVT;

  p_buf->addr = addr;

  bta_sys_sendmsg(p_buf);
}

/*******************************************************************************
 *
 * Function         BTA_HdRemoveDevice
 *
 * Description      This function is called when a device is virtually uncabled
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTA_HdRemoveDevice(const RawAddress& addr) {
  APPL_TRACE_API("%s", __func__);
  tBTA_HD_DEVICE_CTRL* p_buf =
      (tBTA_HD_DEVICE_CTRL*)osi_malloc(sizeof(tBTA_HD_DEVICE_CTRL));
  p_buf->hdr.event = BTA_HD_API_REMOVE_DEVICE_EVT;

  p_buf->addr = addr;

  bta_sys_sendmsg(p_buf);
}

/*******************************************************************************
 *
 * Function         BTA_HdReportError
 *
 * Description      This function is called when reporting error for set report
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTA_HdReportError(uint8_t error) {
  APPL_TRACE_API("%s", __func__);
  tBTA_HD_REPORT_ERR* p_buf =
      (tBTA_HD_REPORT_ERR*)osi_malloc(sizeof(tBTA_HD_REPORT_ERR));
  p_buf->hdr.event = BTA_HD_API_REPORT_ERROR_EVT;
  p_buf->error = error;

  bta_sys_sendmsg(p_buf);
}

#endif /* BTA_HD_INCLUDED */