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 ******************************************************************************/ 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_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 ******************************************************************************/ 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
