1/******************************************************************************
2 *
3 *  Copyright (C) 2003-2012 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/******************************************************************************
20 *
21 *  This is the implementation file for audio gateway call-in functions.
22 *
23 ******************************************************************************/
24
25#include <string.h>
26
27#include "bt_common.h"
28#include "bta_ag_api.h"
29#include "bta_ag_ci.h"
30#include "bta_ag_int.h"
31#include "bta_api.h"
32
33/******************************************************************************
34 *
35 * Function         bta_ag_ci_rx_write
36 *
37 * Description      This function is called to send data to the AG when the AG
38 *                  is configured for AT command pass-through.  The function
39 *                  copies data to an event buffer and sends it.
40 *
41 * Returns          void
42 *
43 *****************************************************************************/
44void bta_ag_ci_rx_write(uint16_t handle, char* p_data, uint16_t len) {
45  uint16_t len_remaining = len;
46  char* p_data_area;
47
48  if (len > (RFCOMM_DATA_BUF_SIZE - sizeof(tBTA_AG_CI_RX_WRITE) - 1))
49    len = RFCOMM_DATA_BUF_SIZE - sizeof(tBTA_AG_CI_RX_WRITE) - 1;
50
51  while (len_remaining) {
52    if (len_remaining < len) len = len_remaining;
53
54    tBTA_AG_CI_RX_WRITE* p_buf =
55        (tBTA_AG_CI_RX_WRITE*)osi_malloc(sizeof(tBTA_AG_CI_RX_WRITE) + len + 1);
56    p_buf->hdr.event = BTA_AG_CI_RX_WRITE_EVT;
57    p_buf->hdr.layer_specific = handle;
58
59    p_data_area = (char*)(p_buf + 1); /* Point to data area after header */
60    strncpy(p_data_area, p_data, len);
61    p_data_area[len] = 0;
62
63    bta_sys_sendmsg(p_buf);
64
65    len_remaining -= len;
66    p_data += len;
67  }
68}
69
70/******************************************************************************
71 *
72 * Function         bta_ag_ci_slc_ready
73 *
74 * Description      This function is called to notify AG that SLC is up at
75 *                  the application. This funcion is only used when the app
76 *                  is running in pass-through mode.
77 *
78 * Returns          void
79 *
80 *****************************************************************************/
81void bta_ag_ci_slc_ready(uint16_t handle) {
82  tBTA_AG_DATA* p_buf = (tBTA_AG_DATA*)osi_malloc(sizeof(tBTA_AG_DATA));
83
84  p_buf->hdr.event = BTA_AG_CI_SLC_READY_EVT;
85  p_buf->hdr.layer_specific = handle;
86
87  bta_sys_sendmsg(p_buf);
88}
89