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 ******************************************************************************/
bta_ag_ci_rx_write(UINT16 handle,char * p_data,UINT16 len)43 void 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_ERROR("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 ******************************************************************************/
bta_ag_ci_slc_ready(UINT16 handle)88 void 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