Bluetooth: Support MAP Client role on Bluedroid.

Implementation changes from BTA and BTIF layer to support
MCE role on Bluedroid stack.

Change-Id: I8547b0f28338e83edabae969121872ca23fdcb36
diff --git a/bta/mce/bta_mce_act.c b/bta/mce/bta_mce_act.c
new file mode 100644
index 0000000..652254f
--- /dev/null
+++ b/bta/mce/bta_mce_act.c
@@ -0,0 +1,186 @@
+/******************************************************************************
+ *
+ *  Copyright (C) 2014 The Android Open Source Project
+ *  Copyright (C) 2003-2012 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 action functions for MCE.
+ *
+ ******************************************************************************/
+
+#include <hardware/bluetooth.h>
+#include <arpa/inet.h>
+
+#include "bt_types.h"
+#include "gki.h"
+#include "bd.h"
+#include "utl.h"
+#include "bta_sys.h"
+#include "bta_api.h"
+#include "bta_mce_api.h"
+#include "bta_mce_int.h"
+#include "btm_api.h"
+#include "btm_int.h"
+#include "sdp_api.h"
+#include <string.h>
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+static const tBT_UUID bta_mce_mas_uuid = {
+    .len = 2,
+    .uu.uuid16 = UUID_SERVCLASS_MESSAGE_ACCESS
+};
+
+/*******************************************************************************
+**
+** Function     bta_mce_search_cback
+**
+** Description  Callback from btm after search is completed
+**
+** Returns      void
+**
+*******************************************************************************/
+
+static void bta_mce_search_cback(UINT16 result, void * user_data)
+{
+    tSDP_DISC_REC *p_rec = NULL;
+    tBTA_MCE_MAS_DISCOVERY_COMP evt_data;
+    int found = 0;
+
+    APPL_TRACE_DEBUG("bta_mce_start_discovery_cback res: 0x%x", result);
+
+    bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_NONE;
+
+    if (bta_mce_cb.p_dm_cback == NULL) return;
+
+    evt_data.status = BTA_MCE_FAILURE;
+    bdcpy(evt_data.remote_addr, bta_mce_cb.remote_addr);
+    evt_data.num_mas = 0;
+
+    if (result == SDP_SUCCESS || result == SDP_DB_FULL)
+    {
+        do
+        {
+            tSDP_DISC_ATTR *p_attr;
+            tSDP_PROTOCOL_ELEM pe;
+
+            p_rec = SDP_FindServiceUUIDInDb(p_bta_mce_cfg->p_sdp_db, (tBT_UUID*) &bta_mce_mas_uuid, p_rec);
+
+            APPL_TRACE_DEBUG("p_rec:%p", p_rec);
+
+            if (p_rec == NULL)
+                break;
+
+            if (!SDP_FindProtocolListElemInRec(p_rec, UUID_PROTOCOL_RFCOMM, &pe))
+                continue;
+
+            evt_data.mas[found].scn = pe.params[0];
+
+            if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SERVICE_NAME)) == NULL)
+                continue;
+
+            evt_data.mas[found].p_srv_name = (char *) p_attr->attr_value.v.array;
+            evt_data.mas[found].srv_name_len= SDP_DISC_ATTR_LEN(p_attr->attr_len_type);
+
+            if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_MAS_INSTANCE_ID)) == NULL)
+                break;
+
+                 evt_data.mas[found].instance_id = p_attr->attr_value.v.u8;
+
+            if ((p_attr = SDP_FindAttributeInRec(p_rec, ATTR_ID_SUPPORTED_MSG_TYPE)) == NULL)
+                break;
+
+            evt_data.mas[found].msg_type = p_attr->attr_value.v.u8;
+
+            found++;
+        } while (p_rec != NULL && found < BTA_MCE_MAX_MAS_INSTANCES);
+
+        evt_data.num_mas = found;
+        evt_data.status = BTA_MCE_SUCCESS;
+    }
+
+    bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, (tBTA_MCE*) &evt_data, user_data);
+}
+
+/*******************************************************************************
+**
+** Function     bta_mce_enable
+**
+** Description  Initializes the MCE I/F
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_mce_enable(tBTA_MCE_MSG *p_data)
+{
+    tBTA_MCE_STATUS status = BTA_MCE_SUCCESS;
+    bta_mce_cb.p_dm_cback = p_data->enable.p_cback;
+    bta_mce_cb.p_dm_cback(BTA_MCE_ENABLE_EVT, (tBTA_MCE *)&status, NULL);
+}
+
+/*******************************************************************************
+**
+** Function     bta_mce_get_remote_mas_instances
+**
+** Description  Discovers MAS instances on remote device
+**
+** Returns      void
+**
+*******************************************************************************/
+void bta_mce_get_remote_mas_instances(tBTA_MCE_MSG *p_data)
+{
+    if(p_data == NULL)
+    {
+    APPL_TRACE_DEBUG("MCE control block handle is null");
+    return;
+    }
+    tBTA_MCE_STATUS status = BTA_MCE_FAILURE;
+
+    APPL_TRACE_DEBUG("%s in, sdp_active:%d", __FUNCTION__, bta_mce_cb.sdp_active);
+
+    if (bta_mce_cb.sdp_active != BTA_MCE_SDP_ACT_NONE)
+    {
+        /* SDP is still in progress */
+        status = BTA_MCE_BUSY;
+        if(bta_mce_cb.p_dm_cback)
+            bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, (tBTA_MCE *)&status, NULL);
+
+        return;
+    }
+
+    bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_YES;
+    bdcpy(bta_mce_cb.remote_addr, p_data->get_rmt_mas.bd_addr);
+
+    SDP_InitDiscoveryDb (p_bta_mce_cfg->p_sdp_db, p_bta_mce_cfg->sdp_db_size, 1,
+                                (tBT_UUID*) &bta_mce_mas_uuid, 0, NULL);
+
+    if (!SDP_ServiceSearchAttributeRequest2(p_data->get_rmt_mas.bd_addr, p_bta_mce_cfg->p_sdp_db,
+                                                bta_mce_search_cback, NULL))
+    {
+        bta_mce_cb.sdp_active = BTA_MCE_SDP_ACT_NONE;
+
+        /* failed to start SDP. report the failure right away */
+        if (bta_mce_cb.p_dm_cback)
+            bta_mce_cb.p_dm_cback(BTA_MCE_MAS_DISCOVERY_COMP_EVT, (tBTA_MCE *)&status, NULL);
+    }
+    /*
+    else report the result when the cback is called
+    */
+}