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#include "bta_api.h"
27#include "bta_ag_api.h"
28#include "bta_ag_int.h"
29#include "bta_ag_ci.h"
30#include "gki.h"
31
32/******************************************************************************
33**
34** Function         bta_ag_ci_rx_write
35**
36** Description      This function is called to send data to the AG when the AG
37**                  is configured for AT command pass-through.  The function
38**                  copies data to an event buffer and sends it.
39**
40** Returns          void
41**
42******************************************************************************/
43void bta_ag_ci_rx_write(UINT16 handle, char *p_data, UINT16 len)
44{
45    tBTA_AG_CI_RX_WRITE *p_buf;
46    UINT16 len_remaining = len;
47    char *p_data_area;
48
49    if (len > (RFCOMM_DATA_POOL_BUF_SIZE - sizeof(tBTA_AG_CI_RX_WRITE) - 1))
50        len = RFCOMM_DATA_POOL_BUF_SIZE - sizeof(tBTA_AG_CI_RX_WRITE) - 1;
51
52    while (len_remaining)
53    {
54        if (len_remaining < len)
55            len = len_remaining;
56
57        if ((p_buf = (tBTA_AG_CI_RX_WRITE *) GKI_getbuf((UINT16)(sizeof(tBTA_AG_CI_RX_WRITE) + len + 1))) != NULL)
58    {
59        p_buf->hdr.event = BTA_AG_CI_RX_WRITE_EVT;
60        p_buf->hdr.layer_specific = handle;
61
62        p_data_area = (char *)(p_buf+1);        /* Point to data area after header */
63        strncpy(p_data_area, p_data, len);
64        p_data_area[len] = 0;
65
66        bta_sys_sendmsg(p_buf);
67        } else {
68        APPL_TRACE_ERROR1("ERROR: Unable to allocate buffer to hold AT response code. len=%i", len);
69            break;
70        }
71
72        len_remaining-=len;
73        p_data+=len;
74    }
75}
76
77/******************************************************************************
78**
79** Function         bta_ag_ci_slc_ready
80**
81** Description      This function is called to notify AG that SLC is up at
82**                  the application. This funcion is only used when the app
83**                  is running in pass-through mode.
84**
85** Returns          void
86**
87******************************************************************************/
88void bta_ag_ci_slc_ready(UINT16 handle)
89{
90    tBTA_AG_DATA *p_buf;
91
92    if ((p_buf = (tBTA_AG_DATA *)GKI_getbuf(sizeof(tBTA_AG_DATA))) != NULL)
93    {
94        p_buf->hdr.event = BTA_AG_CI_SLC_READY_EVT;
95        p_buf->hdr.layer_specific = handle;
96        bta_sys_sendmsg(p_buf);
97    }
98}
99