| /****************************************************************************** |
| * |
| * 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 the GATT client discovery procedures and cache |
| * related functions. |
| * |
| ******************************************************************************/ |
| |
| #define LOG_TAG "bt_bta_gattc" |
| |
| #include "bt_target.h" |
| |
| #if defined(BTA_GATT_INCLUDED) && (BTA_GATT_INCLUDED == TRUE) |
| |
| #include <string.h> |
| |
| #include "bta_gattc_int.h" |
| #include "bta_sys.h" |
| #include "btm_api.h" |
| #include "btm_ble_api.h" |
| #include "bt_common.h" |
| #include "osi/include/log.h" |
| #include "sdp_api.h" |
| #include "sdpdefs.h" |
| #include "utl.h" |
| |
| static void bta_gattc_char_dscpt_disc_cmpl(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb); |
| static tBTA_GATT_STATUS bta_gattc_sdp_service_disc(UINT16 conn_id, tBTA_GATTC_SERV *p_server_cb); |
| |
| #define BTA_GATT_SDP_DB_SIZE 4096 |
| |
| /***************************************************************************** |
| ** Constants |
| *****************************************************************************/ |
| |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| static char *bta_gattc_attr_type[] = |
| { |
| "I", /* Included Service */ |
| "C", /* Characteristic */ |
| "D" /* Characteristic Descriptor */ |
| }; |
| /* utility functions */ |
| |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_display_cache_server |
| ** |
| ** Description debug function to display the server cache. |
| ** |
| ** Returns none. |
| ** |
| *******************************************************************************/ |
| static void bta_gattc_display_cache_server(tBTA_GATTC_CACHE *p_cache) |
| { |
| UINT8 i = 0, j; |
| tBTA_GATTC_CACHE *p_cur_srvc = p_cache; |
| tBTA_GATTC_CACHE_ATTR *p_attr; |
| |
| APPL_TRACE_ERROR("<================Start Server Cache =============>"); |
| |
| while (p_cur_srvc) |
| { |
| APPL_TRACE_ERROR("Service[%d]: handle[%d ~ %d] %s[0x%04x] inst[%d]", |
| i, p_cur_srvc->s_handle, p_cur_srvc->e_handle, |
| ((p_cur_srvc->service_uuid.id.uuid.len == 2) ? "uuid16" : "uuid128"), |
| p_cur_srvc->service_uuid.id.uuid.uu.uuid16, |
| p_cur_srvc->service_uuid.id.inst_id); |
| i ++; |
| |
| p_attr = p_cur_srvc->p_attr; |
| |
| for (j = 0; p_attr; j ++ ) |
| { |
| APPL_TRACE_ERROR("\t Attr[0x%04x] handle[%d] uuid[0x%04x] inst[%d] type[%s] prop[0x%1x]", |
| j + 1, p_attr->attr_handle, p_attr->p_uuid->uuid16, p_attr->inst_id, |
| bta_gattc_attr_type[p_attr->attr_type], p_attr->property); |
| |
| p_attr = p_attr->p_next; |
| } |
| p_cur_srvc = p_cur_srvc->p_next; |
| } |
| |
| APPL_TRACE_ERROR("<================End Server Cache =============>"); |
| APPL_TRACE_ERROR(" "); |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_display_explore_record |
| ** |
| ** Description debug function to display the exploration list |
| ** |
| ** Returns none. |
| ** |
| *******************************************************************************/ |
| static void bta_gattc_display_explore_record(tBTA_GATTC_ATTR_REC *p_rec, UINT8 num_rec) |
| { |
| UINT8 i; |
| tBTA_GATTC_ATTR_REC *pp = p_rec; |
| |
| APPL_TRACE_ERROR("<================Start Explore Queue =============>"); |
| for (i = 0; i < num_rec; i ++, pp ++) |
| { |
| APPL_TRACE_ERROR("\t rec[%d] uuid[0x%04x] s_handle[%d] e_handle[%d] is_primary[%d]", |
| i + 1, pp->uuid.uu.uuid16, pp->s_handle, pp->e_handle, pp->is_primary); |
| } |
| APPL_TRACE_ERROR("<================ End Explore Queue =============>"); |
| APPL_TRACE_ERROR(" "); |
| |
| } |
| #endif /* BTA_GATT_DEBUG == TRUE */ |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_alloc_cache_buf |
| ** |
| ** Description Allocate a GKI buffer for database cache. |
| ** |
| ** Returns status |
| ** |
| *******************************************************************************/ |
| BT_HDR *bta_gattc_alloc_cache_buf(tBTA_GATTC_SERV *p_srvc_cb) |
| { |
| BT_HDR *p_buf = (BT_HDR *)osi_getbuf(GATT_DB_BUF_SIZE); |
| |
| if (p_buf == NULL) |
| { |
| APPL_TRACE_DEBUG("No resources: GKI buffer allocation failed."); |
| utl_freebuf((void **)&p_srvc_cb->p_srvc_list); |
| p_srvc_cb->free_byte = 0; |
| } |
| else |
| { |
| memset(p_buf, 0, osi_get_buf_size(p_buf)); |
| p_srvc_cb->p_free = (UINT8 *) p_buf; |
| p_srvc_cb->free_byte = osi_get_buf_size(p_buf); |
| |
| /* link into buffer queue */ |
| fixed_queue_enqueue(p_srvc_cb->cache_buffer, p_buf); |
| } |
| #if BTA_GATT_DEBUG== TRUE |
| APPL_TRACE_DEBUG("allocating new buffer: free byte = %d", p_srvc_cb->free_byte); |
| #endif |
| return p_buf; |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_init_cache |
| ** |
| ** Description Initialize the database cache and discovery related resources. |
| ** |
| ** Returns status |
| ** |
| *******************************************************************************/ |
| tBTA_GATT_STATUS bta_gattc_init_cache(tBTA_GATTC_SERV *p_srvc_cb) |
| { |
| tBTA_GATT_STATUS status = BTA_GATT_OK; |
| |
| if (p_srvc_cb->cache_buffer != NULL) { |
| while (! fixed_queue_is_empty(p_srvc_cb->cache_buffer)) |
| osi_freebuf(fixed_queue_try_dequeue(p_srvc_cb->cache_buffer)); |
| } else { |
| p_srvc_cb->cache_buffer = fixed_queue_new(SIZE_MAX); |
| } |
| |
| utl_freebuf((void **)&p_srvc_cb->p_srvc_list); |
| |
| if ((p_srvc_cb->p_srvc_list = (tBTA_GATTC_ATTR_REC*)osi_getbuf(BTA_GATTC_ATTR_LIST_SIZE)) == NULL) |
| { |
| APPL_TRACE_DEBUG("No resources: GKI buffer allocation failed."); |
| status = GATT_NO_RESOURCES; |
| } |
| else |
| { |
| p_srvc_cb->total_srvc = 0; |
| p_srvc_cb->cur_srvc_idx = |
| p_srvc_cb->cur_char_idx = |
| p_srvc_cb->next_avail_idx = 0; |
| |
| if (bta_gattc_alloc_cache_buf(p_srvc_cb) == NULL) |
| { |
| status = GATT_NO_RESOURCES; |
| } |
| else |
| { |
| p_srvc_cb->p_cur_srvc = p_srvc_cb->p_srvc_cache = NULL; |
| } |
| } |
| |
| return status; |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_get_srvc_inst_id |
| ** |
| ** Description get service instance number |
| ** |
| ** Returns instance ID of the service. |
| ** |
| *******************************************************************************/ |
| static UINT8 bta_gattc_get_srvc_inst_id(tBTA_GATTC_SERV *p_srvc_cb, tBT_UUID uuid) |
| { |
| UINT8 i = 0, inst = 0; |
| tBTA_GATTC_ATTR_REC *p_srvc_rec; |
| |
| for (i = 0; i < p_srvc_cb->total_srvc; i ++) |
| /* |
| for (; i < p_srvc_cb->cur_srvc_idx; i ++)*/ |
| { |
| p_srvc_rec = p_srvc_cb->p_srvc_list + i; |
| |
| if (bta_gattc_uuid_compare(&p_srvc_rec->uuid, &uuid, TRUE)) |
| inst ++; |
| } |
| return inst ; |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_get_char_inst_id |
| ** |
| ** Description get characteristic instance number |
| ** |
| ** Returns characteristic instance ID. |
| ** |
| *******************************************************************************/ |
| static UINT8 bta_gattc_get_char_inst_id(tBTA_GATTC_CACHE *p_service_cache, tBT_UUID *p_uuid) |
| { |
| UINT8 inst = 0; |
| tBTA_GATTC_CACHE_ATTR *p_attr; |
| tBT_UUID attr_uuid; |
| |
| p_attr = p_service_cache->p_attr; |
| |
| while (p_attr) |
| { |
| bta_gattc_pack_attr_uuid(p_attr, &attr_uuid); |
| |
| if (bta_gattc_uuid_compare(&attr_uuid, p_uuid, TRUE)) |
| inst ++; |
| |
| p_attr = p_attr->p_next; |
| } |
| |
| return inst ; |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_get_char_descr_inst_id |
| ** |
| ** Description get characteristic descriptor instance number |
| ** |
| ** Returns characteristic instance ID. |
| ** |
| *******************************************************************************/ |
| static UINT8 bta_gattc_get_char_descr_inst_id(tBTA_GATTC_CACHE_ATTR *p_char_attr, tBT_UUID *p_uuid) |
| { |
| UINT8 inst = 0; |
| tBT_UUID attr_uuid; |
| |
| if (p_char_attr != NULL) |
| p_char_attr = p_char_attr->p_next; |
| |
| while (p_char_attr) |
| { |
| bta_gattc_pack_attr_uuid(p_char_attr, &attr_uuid); |
| |
| if (bta_gattc_uuid_compare(&attr_uuid, p_uuid, TRUE)) |
| inst ++; |
| |
| p_char_attr = p_char_attr->p_next; |
| } |
| return inst ; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_add_srvc_to_cache |
| ** |
| ** Description Add a service into database cache. |
| ** |
| ** Returns status |
| ** |
| *******************************************************************************/ |
| static tBTA_GATT_STATUS bta_gattc_add_srvc_to_cache(tBTA_GATTC_SERV *p_srvc_cb, |
| UINT16 s_handle, UINT16 e_handle, |
| tBT_UUID *p_uuid, |
| BOOLEAN is_primary, UINT8 srvc_inst) |
| { |
| tBTA_GATTC_CACHE *p_new_srvc = NULL; |
| tBTA_GATT_STATUS status = BTA_GATT_OK; |
| |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("Add a service into Service"); |
| APPL_TRACE_DEBUG("free byte = %d, req %d bytes.", p_srvc_cb->free_byte, sizeof(tBTA_GATTC_CACHE)) |
| #endif |
| |
| if (p_srvc_cb->free_byte < sizeof(tBTA_GATTC_CACHE)) |
| { |
| if (bta_gattc_alloc_cache_buf(p_srvc_cb) == NULL) |
| return GATT_NO_RESOURCES; |
| } |
| |
| p_new_srvc = (tBTA_GATTC_CACHE *)p_srvc_cb->p_free; |
| /* update service information */ |
| p_new_srvc->s_handle = s_handle; |
| p_new_srvc->e_handle = e_handle; |
| p_new_srvc->service_uuid.is_primary = is_primary; |
| memcpy(&p_new_srvc->service_uuid.id.uuid, p_uuid, sizeof(tBT_UUID)); |
| p_new_srvc->service_uuid.id.inst_id = srvc_inst; |
| p_new_srvc->p_next = NULL; |
| |
| if (p_srvc_cb->p_cur_srvc != NULL) |
| p_srvc_cb->p_cur_srvc->p_next = p_new_srvc; |
| p_srvc_cb->p_cur_srvc = p_new_srvc; |
| p_srvc_cb->p_cur_srvc->p_cur_char = NULL; |
| |
| /* first service */ |
| if (p_srvc_cb->p_srvc_cache == NULL) |
| p_srvc_cb->p_srvc_cache = p_new_srvc; |
| |
| /* update buffer managament info */ |
| p_srvc_cb->p_free += sizeof(tBTA_GATTC_CACHE); |
| p_srvc_cb->free_byte -= sizeof(tBTA_GATTC_CACHE); |
| |
| |
| return status; |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_add_attr_to_cache |
| ** |
| ** Description Add an attribute into database cache buffer. |
| ** |
| ** Returns status |
| ** |
| *******************************************************************************/ |
| static tBTA_GATT_STATUS bta_gattc_add_attr_to_cache(tBTA_GATTC_SERV *p_srvc_cb, |
| UINT16 handle, |
| tBT_UUID *p_uuid, |
| UINT8 property, |
| tBTA_GATTC_ATTR_TYPE type) |
| { |
| tBTA_GATTC_CACHE_ATTR *p_attr; |
| tBTA_GATT_STATUS status = BTA_GATT_OK; |
| UINT16 len = sizeof(tBTA_GATTC_CACHE_ATTR) + p_uuid->len; |
| UINT8 *pp; |
| |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("bta_gattc_add_attr_to_cache: Add a [%s] into Service", bta_gattc_attr_type[type]); |
| APPL_TRACE_DEBUG("handle=%d uuid16=0x%x property=0x%x type=%d", handle, p_uuid->uu.uuid16, property, type); |
| APPL_TRACE_DEBUG("free byte = %d, req %d bytes.", p_srvc_cb->free_byte, len); |
| #endif |
| |
| if (p_srvc_cb->p_cur_srvc == NULL) |
| { |
| APPL_TRACE_ERROR("Illegal action to add char/descr/incl srvc before adding a service!"); |
| return GATT_WRONG_STATE; |
| } |
| |
| if (p_srvc_cb->free_byte < len) |
| { |
| if (bta_gattc_alloc_cache_buf(p_srvc_cb) == NULL) |
| return GATT_NO_RESOURCES; |
| } |
| |
| p_attr = (tBTA_GATTC_CACHE_ATTR *)p_srvc_cb->p_free; |
| |
| p_attr->attr_handle = handle; |
| p_attr->attr_type = type; |
| p_attr->property = property; |
| p_attr->uuid_len = p_uuid->len; |
| p_attr->p_uuid = (tBTA_GATTC_UUID *)(p_attr + 1); |
| p_attr->p_next = NULL; |
| |
| pp = (UINT8 *)p_attr->p_uuid; |
| |
| if (p_uuid->len == LEN_UUID_16) |
| { |
| UINT16_TO_STREAM(pp, p_uuid->uu.uuid16); |
| } |
| else if (p_uuid->len == LEN_UUID_128) |
| { |
| memcpy(pp, p_uuid->uu.uuid128, LEN_UUID_128); |
| } |
| |
| if (type == BTA_GATTC_ATTR_TYPE_CHAR) |
| { |
| p_attr->inst_id = bta_gattc_get_char_inst_id(p_srvc_cb->p_cur_srvc, p_uuid); |
| p_srvc_cb->p_cur_srvc->p_cur_char = p_attr; |
| } |
| else if (type == BTA_GATTC_ATTR_TYPE_CHAR_DESCR) |
| p_attr->inst_id = bta_gattc_get_char_descr_inst_id(p_srvc_cb->p_cur_srvc->p_cur_char, p_uuid); |
| else /* TODO: --->> temp treat included service as single instance */ |
| p_attr->inst_id = 0; |
| |
| /* update service information */ |
| p_srvc_cb->p_free += len; |
| p_srvc_cb->free_byte -= len; |
| |
| /* first attribute within the service, update the attribute pointer */ |
| if (p_srvc_cb->p_cur_srvc->p_attr == NULL) |
| { |
| p_srvc_cb->p_cur_srvc->p_attr = p_attr; |
| } |
| if (p_srvc_cb->p_cur_srvc->p_last_attr != NULL) |
| p_srvc_cb->p_cur_srvc->p_last_attr->p_next = p_attr; |
| |
| p_srvc_cb->p_cur_srvc->p_last_attr = p_attr; |
| |
| return status; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_get_disc_range |
| ** |
| ** Description get discovery stating and ending handle range. |
| ** |
| ** Returns None. |
| ** |
| *******************************************************************************/ |
| void bta_gattc_get_disc_range(tBTA_GATTC_SERV *p_srvc_cb, UINT16 *p_s_hdl, UINT16 *p_e_hdl, BOOLEAN is_srvc) |
| { |
| tBTA_GATTC_ATTR_REC *p_rec = NULL; |
| |
| if (is_srvc) |
| { |
| p_rec = p_srvc_cb->p_srvc_list + p_srvc_cb->cur_srvc_idx; |
| *p_s_hdl = p_rec->s_handle; |
| } |
| else |
| { |
| p_rec = p_srvc_cb->p_srvc_list + p_srvc_cb->cur_char_idx; |
| *p_s_hdl = p_rec->s_handle + 1; |
| } |
| |
| *p_e_hdl = p_rec->e_handle; |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("discover range [%d ~ %d]",p_rec->s_handle, p_rec->e_handle); |
| #endif |
| return; |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_discover_pri_service |
| ** |
| ** Description Start primary service discovery |
| ** |
| ** Returns status of the operation. |
| ** |
| *******************************************************************************/ |
| tBTA_GATT_STATUS bta_gattc_discover_pri_service(UINT16 conn_id, tBTA_GATTC_SERV *p_server_cb, |
| UINT8 disc_type) |
| { |
| tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id); |
| tBTA_GATT_STATUS status = BTA_GATT_ERROR; |
| |
| if (p_clcb) |
| { |
| if (p_clcb->transport == BTA_TRANSPORT_LE) |
| status = bta_gattc_discover_procedure(conn_id, p_server_cb, disc_type); |
| else |
| status = bta_gattc_sdp_service_disc(conn_id, p_server_cb); |
| } |
| |
| return status; |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_discover_procedure |
| ** |
| ** Description Start a particular type of discovery procedure on server. |
| ** |
| ** Returns status of the operation. |
| ** |
| *******************************************************************************/ |
| tBTA_GATT_STATUS bta_gattc_discover_procedure(UINT16 conn_id, tBTA_GATTC_SERV *p_server_cb, |
| UINT8 disc_type) |
| { |
| tGATT_DISC_PARAM param; |
| BOOLEAN is_service = TRUE; |
| |
| memset(¶m, 0, sizeof(tGATT_DISC_PARAM)); |
| |
| if (disc_type == GATT_DISC_SRVC_ALL || disc_type == GATT_DISC_SRVC_BY_UUID) |
| { |
| param.s_handle = 1; |
| param.e_handle = 0xFFFF; |
| } |
| else |
| { |
| if (disc_type == GATT_DISC_CHAR_DSCPT) |
| is_service = FALSE; |
| |
| bta_gattc_get_disc_range(p_server_cb, ¶m.s_handle, ¶m.e_handle, is_service); |
| |
| if (param.s_handle > param.e_handle) |
| { |
| return GATT_ERROR; |
| } |
| } |
| return GATTC_Discover (conn_id, disc_type, ¶m); |
| |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_start_disc_include_srvc |
| ** |
| ** Description Start discovery for included service |
| ** |
| ** Returns status of the operation. |
| ** |
| *******************************************************************************/ |
| tBTA_GATT_STATUS bta_gattc_start_disc_include_srvc(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb) |
| { |
| return bta_gattc_discover_procedure(conn_id, p_srvc_cb, GATT_DISC_INC_SRVC); |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_start_disc_char |
| ** |
| ** Description Start discovery for characteristic |
| ** |
| ** Returns status of the operation. |
| ** |
| *******************************************************************************/ |
| tBTA_GATT_STATUS bta_gattc_start_disc_char(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb) |
| { |
| p_srvc_cb->total_char = 0; |
| |
| return bta_gattc_discover_procedure(conn_id, p_srvc_cb, GATT_DISC_CHAR); |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_start_disc_char_dscp |
| ** |
| ** Description Start discovery for characteristic descriptor |
| ** |
| ** Returns none. |
| ** |
| *******************************************************************************/ |
| void bta_gattc_start_disc_char_dscp(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb) |
| { |
| APPL_TRACE_DEBUG("starting discover characteristics descriptor"); |
| |
| if (bta_gattc_discover_procedure(conn_id, p_srvc_cb, GATT_DISC_CHAR_DSCPT) != 0) |
| bta_gattc_char_dscpt_disc_cmpl(conn_id, p_srvc_cb); |
| |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_explore_srvc |
| ** |
| ** Description process the service discovery complete event |
| ** |
| ** Returns status |
| ** |
| *******************************************************************************/ |
| static void bta_gattc_explore_srvc(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb) |
| { |
| tBTA_GATTC_ATTR_REC *p_rec = p_srvc_cb->p_srvc_list + p_srvc_cb->cur_srvc_idx; |
| tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id); |
| |
| APPL_TRACE_DEBUG("Start service discovery: srvc_idx = %d", p_srvc_cb->cur_srvc_idx); |
| |
| p_srvc_cb->cur_char_idx = p_srvc_cb->next_avail_idx = p_srvc_cb->total_srvc; |
| |
| if (p_clcb == NULL) |
| { |
| APPL_TRACE_ERROR("unknown connection ID"); |
| return; |
| } |
| /* start expore a service if there is service not been explored */ |
| if (p_srvc_cb->cur_srvc_idx < p_srvc_cb->total_srvc) |
| { |
| /* add the first service into cache */ |
| if (bta_gattc_add_srvc_to_cache (p_srvc_cb, |
| p_rec->s_handle, |
| p_rec->e_handle, |
| &p_rec->uuid, |
| p_rec->is_primary, |
| p_rec->srvc_inst_id) == 0) |
| { |
| /* start discovering included services */ |
| bta_gattc_start_disc_include_srvc(conn_id, p_srvc_cb); |
| return; |
| } |
| } |
| /* no service found at all, the end of server discovery*/ |
| LOG_WARN(LOG_TAG, "%s no more services found", __func__); |
| |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| bta_gattc_display_cache_server(p_srvc_cb->p_srvc_cache); |
| #endif |
| /* save cache to NV */ |
| p_clcb->p_srcb->state = BTA_GATTC_SERV_SAVE; |
| bta_gattc_co_cache_open(p_srvc_cb->server_bda, BTA_GATTC_CI_CACHE_OPEN_EVT, |
| conn_id, TRUE); |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_incl_srvc_disc_cmpl |
| ** |
| ** Description process the relationship discovery complete event |
| ** |
| ** Returns status |
| ** |
| *******************************************************************************/ |
| static void bta_gattc_incl_srvc_disc_cmpl(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb) |
| { |
| p_srvc_cb->cur_char_idx = p_srvc_cb->total_srvc; |
| |
| /* start discoverying characteristic */ |
| bta_gattc_start_disc_char(conn_id, p_srvc_cb); |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_char_disc_cmpl |
| ** |
| ** Description process the characteristic discovery complete event |
| ** |
| ** Returns status |
| ** |
| *******************************************************************************/ |
| static void bta_gattc_char_disc_cmpl(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb) |
| { |
| tBTA_GATTC_ATTR_REC *p_rec = p_srvc_cb->p_srvc_list + p_srvc_cb->cur_char_idx; |
| |
| /* if there are characteristic needs to be explored */ |
| if (p_srvc_cb->total_char > 0) |
| { |
| /* add the first characteristic into cache */ |
| bta_gattc_add_attr_to_cache (p_srvc_cb, |
| p_rec->s_handle, |
| &p_rec->uuid, |
| p_rec->property, |
| BTA_GATTC_ATTR_TYPE_CHAR); |
| |
| /* start discoverying characteristic descriptor , if failed, disc for next char*/ |
| bta_gattc_start_disc_char_dscp(conn_id, p_srvc_cb); |
| } |
| else /* otherwise start with next service */ |
| { |
| p_srvc_cb->cur_srvc_idx ++; |
| |
| bta_gattc_explore_srvc (conn_id, p_srvc_cb); |
| } |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_char_dscpt_disc_cmpl |
| ** |
| ** Description process the char descriptor discovery complete event |
| ** |
| ** Returns status |
| ** |
| *******************************************************************************/ |
| static void bta_gattc_char_dscpt_disc_cmpl(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb) |
| { |
| tBTA_GATTC_ATTR_REC *p_rec = NULL; |
| |
| if (-- p_srvc_cb->total_char > 0) |
| { |
| p_rec = p_srvc_cb->p_srvc_list + (++ p_srvc_cb->cur_char_idx); |
| /* add the next characteristic into cache */ |
| bta_gattc_add_attr_to_cache (p_srvc_cb, |
| p_rec->s_handle, |
| &p_rec->uuid, |
| p_rec->property, |
| BTA_GATTC_ATTR_TYPE_CHAR); |
| |
| /* start discoverying next characteristic for char descriptor */ |
| bta_gattc_start_disc_char_dscp(conn_id, p_srvc_cb); |
| } |
| else |
| /* all characteristic has been explored, start with next service if any */ |
| { |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_ERROR("all char has been explored"); |
| #endif |
| p_srvc_cb->cur_srvc_idx ++; |
| bta_gattc_explore_srvc (conn_id, p_srvc_cb); |
| } |
| |
| } |
| static BOOLEAN bta_gattc_srvc_in_list(tBTA_GATTC_SERV *p_srvc_cb, UINT16 s_handle, |
| UINT16 e_handle, tBT_UUID uuid) |
| { |
| tBTA_GATTC_ATTR_REC *p_rec = NULL; |
| UINT8 i; |
| BOOLEAN exist_srvc = FALSE; |
| UNUSED(uuid); |
| |
| if (!GATT_HANDLE_IS_VALID(s_handle) || !GATT_HANDLE_IS_VALID(e_handle)) |
| { |
| APPL_TRACE_ERROR("invalid included service handle: [0x%04x ~ 0x%04x]", s_handle, e_handle); |
| exist_srvc = TRUE; |
| } |
| else |
| { |
| for (i = 0; i < p_srvc_cb->next_avail_idx; i ++) |
| { |
| p_rec = p_srvc_cb->p_srvc_list + i; |
| |
| /* a new service should not have any overlap with other service handle range */ |
| if (p_rec->s_handle == s_handle || p_rec->e_handle == e_handle) |
| { |
| exist_srvc = TRUE; |
| break; |
| } |
| } |
| } |
| return exist_srvc; |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_add_srvc_to_list |
| ** |
| ** Description Add a service into explore pending list |
| ** |
| ** Returns status |
| ** |
| *******************************************************************************/ |
| static tBTA_GATT_STATUS bta_gattc_add_srvc_to_list(tBTA_GATTC_SERV *p_srvc_cb, |
| UINT16 s_handle, UINT16 e_handle, |
| tBT_UUID uuid, BOOLEAN is_primary) |
| { |
| tBTA_GATTC_ATTR_REC *p_rec = NULL; |
| tBTA_GATT_STATUS status = BTA_GATT_OK; |
| |
| if (p_srvc_cb->p_srvc_list && p_srvc_cb->next_avail_idx < BTA_GATTC_MAX_CACHE_CHAR) |
| { |
| p_rec = p_srvc_cb->p_srvc_list + p_srvc_cb->next_avail_idx; |
| |
| APPL_TRACE_DEBUG("%s handle=%d, service type=0x%04x", |
| __func__, s_handle, uuid.uu.uuid16); |
| |
| p_rec->s_handle = s_handle; |
| p_rec->e_handle = e_handle; |
| p_rec->is_primary = is_primary; |
| p_rec->srvc_inst_id = bta_gattc_get_srvc_inst_id(p_srvc_cb, uuid); |
| memcpy(&p_rec->uuid, &uuid, sizeof(tBT_UUID)); |
| |
| p_srvc_cb->total_srvc ++; |
| p_srvc_cb->next_avail_idx ++; |
| } |
| else |
| { /* allocate bigger buffer ?? */ |
| status = GATT_DB_FULL; |
| |
| APPL_TRACE_ERROR("service not added, no resources or wrong state"); |
| } |
| return status; |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_add_char_to_list |
| ** |
| ** Description Add a characteristic into explore pending list |
| ** |
| ** Returns status |
| ** |
| *******************************************************************************/ |
| static tBTA_GATT_STATUS bta_gattc_add_char_to_list(tBTA_GATTC_SERV *p_srvc_cb, |
| UINT16 decl_handle, UINT16 value_handle, |
| tBT_UUID uuid, UINT8 property) |
| { |
| tBTA_GATTC_ATTR_REC *p_rec = NULL; |
| tBTA_GATT_STATUS status = BTA_GATT_OK; |
| |
| if (p_srvc_cb->p_srvc_list == NULL) |
| { |
| APPL_TRACE_ERROR("No service available, unexpected char discovery result"); |
| status = BTA_GATT_INTERNAL_ERROR; |
| } |
| else if (p_srvc_cb->next_avail_idx < BTA_GATTC_MAX_CACHE_CHAR) |
| { |
| |
| p_rec = p_srvc_cb->p_srvc_list + p_srvc_cb->next_avail_idx; |
| |
| p_srvc_cb->total_char ++; |
| |
| p_rec->s_handle = value_handle; |
| p_rec->property = property; |
| p_rec->e_handle = (p_srvc_cb->p_srvc_list + p_srvc_cb->cur_srvc_idx)->e_handle; |
| memcpy(&p_rec->uuid, &uuid, sizeof(tBT_UUID)); |
| |
| /* update the endind handle of pervious characteristic if available */ |
| if (p_srvc_cb->total_char > 1) |
| { |
| p_rec -= 1; |
| p_rec->e_handle = decl_handle - 1; |
| } |
| p_srvc_cb->next_avail_idx ++; |
| } |
| else |
| { |
| APPL_TRACE_ERROR("char not added, no resources"); |
| /* allocate bigger buffer ?? */ |
| status = BTA_GATT_DB_FULL; |
| } |
| return status; |
| |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_sdp_callback |
| ** |
| ** Description Process the discovery result from sdp |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void bta_gattc_sdp_callback (UINT16 sdp_status) |
| { |
| tSDP_DISC_REC *p_sdp_rec = NULL; |
| tBT_UUID service_uuid; |
| tSDP_PROTOCOL_ELEM pe; |
| UINT16 start_handle = 0, end_handle = 0; |
| tBTA_GATTC_SERV *p_srvc_cb = bta_gattc_find_scb_by_cid(bta_gattc_cb.sdp_conn_id); |
| |
| if(((sdp_status == SDP_SUCCESS) || (sdp_status == SDP_DB_FULL)) && p_srvc_cb != NULL) |
| { |
| do |
| { |
| /* find a service record, report it */ |
| p_sdp_rec = SDP_FindServiceInDb(bta_gattc_cb.p_sdp_db, |
| 0, p_sdp_rec); |
| if (p_sdp_rec) |
| { |
| if (SDP_FindServiceUUIDInRec(p_sdp_rec, &service_uuid)) |
| { |
| |
| if (SDP_FindProtocolListElemInRec(p_sdp_rec, UUID_PROTOCOL_ATT, &pe)) |
| { |
| start_handle = (UINT16) pe.params[0]; |
| end_handle = (UINT16) pe.params[1]; |
| |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_EVENT("Found ATT service [0x%04x] handle[0x%04x ~ 0x%04x]", |
| service_uuid.uu.uuid16, start_handle, end_handle); |
| #endif |
| |
| if (GATT_HANDLE_IS_VALID(start_handle) && GATT_HANDLE_IS_VALID(end_handle)&& |
| p_srvc_cb != NULL) |
| { |
| /* discover services result, add services into a service list */ |
| bta_gattc_add_srvc_to_list(p_srvc_cb, |
| start_handle, |
| end_handle, |
| service_uuid, |
| TRUE); |
| } |
| else |
| { |
| APPL_TRACE_ERROR("invalid start_handle = %d end_handle = %d", |
| start_handle, end_handle); |
| } |
| } |
| |
| |
| } |
| } |
| } while (p_sdp_rec); |
| } |
| |
| if ( p_srvc_cb != NULL) |
| /* start discover primary service */ |
| bta_gattc_explore_srvc(bta_gattc_cb.sdp_conn_id, p_srvc_cb); |
| else |
| { |
| APPL_TRACE_ERROR("GATT service discovery is done on unknown connection"); |
| } |
| |
| osi_freebuf(bta_gattc_cb.p_sdp_db); |
| bta_gattc_cb.p_sdp_db = NULL; |
| bta_gattc_cb.sdp_conn_id = 0; |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_sdp_service_disc |
| ** |
| ** Description Start DSP Service Discovert |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| static tBTA_GATT_STATUS bta_gattc_sdp_service_disc(UINT16 conn_id, tBTA_GATTC_SERV *p_server_cb) |
| { |
| tSDP_UUID uuid; |
| UINT16 num_attrs = 2; |
| UINT16 attr_list[2]; |
| tBTA_GATT_STATUS status = BTA_GATT_ERROR; |
| |
| memset (&uuid, 0, sizeof(tSDP_UUID)); |
| |
| uuid.len = LEN_UUID_16; |
| uuid.uu.uuid16 = UUID_PROTOCOL_ATT; |
| |
| if((bta_gattc_cb.p_sdp_db = (tSDP_DISCOVERY_DB *)osi_getbuf(BTA_GATT_SDP_DB_SIZE)) != NULL) |
| { |
| attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST; |
| attr_list[1] = ATTR_ID_PROTOCOL_DESC_LIST; |
| |
| SDP_InitDiscoveryDb (bta_gattc_cb.p_sdp_db, BTA_GATT_SDP_DB_SIZE, 1, |
| &uuid, num_attrs, attr_list); |
| |
| if(!SDP_ServiceSearchAttributeRequest (p_server_cb->server_bda, |
| bta_gattc_cb.p_sdp_db, &bta_gattc_sdp_callback)) |
| { |
| osi_freebuf(bta_gattc_cb.p_sdp_db); |
| bta_gattc_cb.p_sdp_db = NULL; |
| } |
| else |
| { |
| bta_gattc_cb.sdp_conn_id = conn_id; |
| status = BTA_GATT_OK; |
| } |
| } |
| return status; |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_disc_res_cback |
| ** bta_gattc_disc_cmpl_cback |
| ** |
| ** Description callback functions to GATT client stack. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void bta_gattc_disc_res_cback (UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_DISC_RES *p_data) |
| { |
| tBTA_GATTC_SERV * p_srvc_cb = NULL; |
| BOOLEAN pri_srvc; |
| tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id); |
| |
| p_srvc_cb = bta_gattc_find_scb_by_cid(conn_id); |
| |
| if (p_srvc_cb != NULL && p_clcb != NULL && p_clcb->state == BTA_GATTC_DISCOVER_ST) |
| { |
| switch (disc_type) |
| { |
| case GATT_DISC_SRVC_ALL: |
| /* discover services result, add services into a service list */ |
| bta_gattc_add_srvc_to_list(p_srvc_cb, |
| p_data->handle, |
| p_data->value.group_value.e_handle, |
| p_data->value.group_value.service_type, |
| TRUE); |
| |
| break; |
| case GATT_DISC_SRVC_BY_UUID: |
| bta_gattc_add_srvc_to_list(p_srvc_cb, |
| p_data->handle, |
| p_data->value.group_value.e_handle, |
| p_data->value.group_value.service_type, |
| TRUE); |
| break; |
| |
| case GATT_DISC_INC_SRVC: |
| /* add included service into service list if it's secondary or it never showed up |
| in the primary service search */ |
| pri_srvc = bta_gattc_srvc_in_list(p_srvc_cb, |
| p_data->value.incl_service.s_handle, |
| p_data->value.incl_service.e_handle, |
| p_data->value.incl_service.service_type); |
| |
| if (!pri_srvc) |
| bta_gattc_add_srvc_to_list(p_srvc_cb, |
| p_data->value.incl_service.s_handle, |
| p_data->value.incl_service.e_handle, |
| p_data->value.incl_service.service_type, |
| FALSE); |
| /* add into database */ |
| bta_gattc_add_attr_to_cache(p_srvc_cb, |
| p_data->handle, |
| &p_data->value.incl_service.service_type, |
| pri_srvc, |
| BTA_GATTC_ATTR_TYPE_INCL_SRVC); |
| break; |
| |
| case GATT_DISC_CHAR: |
| /* add char value into database */ |
| bta_gattc_add_char_to_list(p_srvc_cb, |
| p_data->handle, |
| p_data->value.dclr_value.val_handle, |
| p_data->value.dclr_value.char_uuid, |
| p_data->value.dclr_value.char_prop); |
| break; |
| |
| case GATT_DISC_CHAR_DSCPT: |
| bta_gattc_add_attr_to_cache(p_srvc_cb, p_data->handle, &p_data->type, 0, |
| BTA_GATTC_ATTR_TYPE_CHAR_DESCR); |
| break; |
| } |
| } |
| } |
| void bta_gattc_disc_cmpl_cback (UINT16 conn_id, tGATT_DISC_TYPE disc_type, tGATT_STATUS status) |
| { |
| tBTA_GATTC_SERV * p_srvc_cb; |
| tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id); |
| |
| if ( p_clcb && (status != GATT_SUCCESS || p_clcb->status != GATT_SUCCESS) ) |
| { |
| if (p_clcb->status == GATT_SUCCESS) |
| p_clcb->status = status; |
| bta_gattc_sm_execute(p_clcb, BTA_GATTC_DISCOVER_CMPL_EVT, NULL); |
| return; |
| } |
| p_srvc_cb = bta_gattc_find_scb_by_cid(conn_id); |
| |
| if (p_srvc_cb != NULL) |
| { |
| switch (disc_type) |
| { |
| case GATT_DISC_SRVC_ALL: |
| case GATT_DISC_SRVC_BY_UUID: |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| bta_gattc_display_explore_record(p_srvc_cb->p_srvc_list, p_srvc_cb->next_avail_idx); |
| #endif |
| bta_gattc_explore_srvc(conn_id, p_srvc_cb); |
| break; |
| |
| case GATT_DISC_INC_SRVC: |
| bta_gattc_incl_srvc_disc_cmpl(conn_id, p_srvc_cb); |
| |
| break; |
| |
| case GATT_DISC_CHAR: |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| bta_gattc_display_explore_record(p_srvc_cb->p_srvc_list, p_srvc_cb->next_avail_idx); |
| #endif |
| bta_gattc_char_disc_cmpl(conn_id, p_srvc_cb); |
| break; |
| |
| case GATT_DISC_CHAR_DSCPT: |
| bta_gattc_char_dscpt_disc_cmpl(conn_id, p_srvc_cb); |
| break; |
| } |
| } |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_id2handle |
| ** |
| ** Description map GATT ID to handle in a given cache. |
| ** |
| ** Returns the handle mapped. 0 if not found. |
| ** |
| *******************************************************************************/ |
| UINT16 bta_gattc_id2handle(tBTA_GATTC_SERV *p_srcb, tBTA_GATT_SRVC_ID *p_service_id, |
| tBTA_GATT_ID *p_char_id, tBTA_GATT_ID *p_descr_uuid) |
| { |
| tBTA_GATTC_CACHE *p_cache = p_srcb->p_srvc_cache; |
| tBTA_GATTC_CACHE_ATTR *p_attr; |
| UINT8 j; |
| UINT16 handle = 0; |
| tBT_UUID attr_uuid; |
| BOOLEAN char_map = FALSE, done = FALSE; |
| |
| while (p_service_id && p_cache && !done) |
| { |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("Service: handle[%d] uuid[0x%04x] inst[%d]", |
| p_cache->s_handle, p_cache->service_uuid.id.uuid.uu.uuid16, |
| p_cache->service_uuid.id.inst_id); |
| #endif |
| p_attr = p_cache->p_attr; |
| |
| if (bta_gattc_srvcid_compare(p_service_id, &p_cache->service_uuid)) |
| { |
| for (j = 0; p_attr; j ++) |
| { |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("\t Attr[0x%04x] handle[0x%04x] uuid[0x%04x] inst[%d] type[%d]", |
| j + 1, p_attr->attr_handle, p_attr->p_uuid->uuid16, |
| p_attr->inst_id, p_attr->attr_type); |
| #endif |
| bta_gattc_pack_attr_uuid(p_attr, &attr_uuid); |
| |
| if (bta_gattc_uuid_compare(&p_char_id->uuid, &attr_uuid, TRUE) && |
| p_char_id->inst_id == p_attr->inst_id) |
| { |
| if (p_descr_uuid == NULL) |
| { |
| handle = p_attr->attr_handle; |
| done = TRUE; |
| break; |
| } |
| else |
| { |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("found matching characteristic for the descriptor"); |
| #endif |
| char_map = TRUE; |
| } |
| } |
| else if (char_map == TRUE) |
| { |
| if (p_attr->attr_type == BTA_GATTC_ATTR_TYPE_CHAR_DESCR) |
| { |
| |
| if (p_descr_uuid != NULL && |
| bta_gattc_uuid_compare(&p_descr_uuid->uuid, &attr_uuid, TRUE) && |
| p_descr_uuid->inst_id == p_attr->inst_id) |
| { |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("found descriptor!!"); |
| #endif |
| handle = p_attr->attr_handle; |
| done = TRUE; |
| break; |
| } |
| else |
| { |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("descriptor UUID not matching"); |
| #endif |
| } |
| } |
| else /* another char */ |
| { |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("no matching descptr found!!start of next characteristic"); |
| #endif |
| char_map = FALSE; |
| done = TRUE; |
| break; |
| } |
| } |
| p_attr = p_attr->p_next; |
| } |
| } |
| p_cache = p_cache->p_next; |
| } |
| |
| return handle; |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_handle2id |
| ** |
| ** Description map a handle to GATT ID in a given cache. |
| ** |
| ** Returns FALSE if map can not be found. |
| ** |
| *******************************************************************************/ |
| |
| BOOLEAN bta_gattc_handle2id(tBTA_GATTC_SERV *p_srcb, UINT16 handle, tBTA_GATT_SRVC_ID *p_service_id, |
| tBTA_GATT_ID *p_char_id, tBTA_GATT_ID *p_descr_type) |
| { |
| tBTA_GATTC_CACHE *p_cache = p_srcb->p_srvc_cache; |
| tBTA_GATTC_CACHE_ATTR *p_attr, *p_char = NULL; |
| UINT8 j; |
| |
| memset(p_service_id, 0, sizeof(tBTA_GATT_SRVC_ID)); |
| memset(p_char_id, 0, sizeof(tBTA_GATT_ID)); |
| memset(p_descr_type, 0, sizeof(tBTA_GATT_ID)); |
| |
| while (p_cache) |
| { |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("Service: handle[%d] uuid[0x%04x] inst[%d]", |
| p_cache->s_handle, p_cache->service_uuid.id.uuid.uu.uuid16, |
| p_cache->service_uuid.id.inst_id); |
| #endif |
| /* a service found */ |
| if (p_cache->s_handle == handle) |
| { |
| memcpy(p_service_id, &p_cache->service_uuid, sizeof(tBTA_GATT_SRVC_ID)); |
| |
| return TRUE; |
| } |
| else /* start looking for attributes within the service */ |
| { |
| p_attr = p_cache->p_attr; |
| |
| for (j = 0; p_attr; j ++) |
| { |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("\t Attr[0x%04x] handle[0x%04x] uuid[0x%04x] inst[%d] type[%d]", |
| j + 1, p_attr->attr_handle, p_attr->p_uuid->uuid16, |
| p_attr->inst_id, p_attr->attr_type); |
| #endif |
| if (p_attr->attr_type == BTA_GATTC_ATTR_TYPE_CHAR) |
| p_char = p_attr; |
| |
| if (handle == p_attr->attr_handle) |
| { |
| memcpy(p_service_id, &p_cache->service_uuid, sizeof(tBTA_GATT_SRVC_ID)); |
| |
| if (p_attr->attr_type == BTA_GATTC_ATTR_TYPE_CHAR_DESCR) |
| { |
| bta_gattc_pack_attr_uuid(p_attr, &p_descr_type->uuid); |
| p_descr_type->inst_id = p_attr->inst_id; |
| |
| if (p_char != NULL) |
| { |
| bta_gattc_pack_attr_uuid(p_char, &p_char_id->uuid); |
| p_char_id->inst_id = p_char->inst_id; |
| } |
| else |
| { |
| APPL_TRACE_ERROR("descptr does not belong to any chracteristic"); |
| } |
| } |
| else |
| /* is a characterisitc value or included service */ |
| { |
| bta_gattc_pack_attr_uuid(p_attr, &p_char_id->uuid); |
| p_char_id->inst_id =p_attr->inst_id; |
| } |
| return TRUE; |
| } |
| p_attr = p_attr->p_next; |
| } |
| } |
| p_cache = p_cache->p_next; |
| } |
| |
| return FALSE; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_search_service |
| ** |
| ** Description search local cache for matching service record. |
| ** |
| ** Returns FALSE if map can not be found. |
| ** |
| *******************************************************************************/ |
| void bta_gattc_search_service(tBTA_GATTC_CLCB *p_clcb, tBT_UUID *p_uuid) |
| { |
| tBTA_GATTC_SERV *p_srcb = p_clcb->p_srcb; |
| tBTA_GATTC_CACHE *p_cache = p_srcb->p_srvc_cache; |
| tBTA_GATTC cb_data; |
| |
| while (p_cache) |
| { |
| if (bta_gattc_uuid_compare(p_uuid, &p_cache->service_uuid.id.uuid, FALSE)) |
| { |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("found service [0x%04x], inst[%d] handle [%d]", |
| p_cache->service_uuid.id.uuid.uu.uuid16, |
| p_cache->service_uuid.id.inst_id, |
| p_cache->s_handle); |
| #endif |
| if (p_clcb->p_rcb->p_cback) |
| { |
| memset(&cb_data, 0, sizeof(tBTA_GATTC)); |
| |
| cb_data.srvc_res.conn_id = p_clcb->bta_conn_id; |
| memcpy(&cb_data.srvc_res.service_uuid, &p_cache->service_uuid, |
| sizeof(tBTA_GATT_SRVC_ID)); |
| |
| (* p_clcb->p_rcb->p_cback)(BTA_GATTC_SEARCH_RES_EVT, &cb_data); |
| } |
| } |
| p_cache = p_cache->p_next; |
| } |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_find_record |
| ** |
| ** Description search local cache for matching attribute record. |
| ** |
| ** Parameter p_result: output parameter to store the characteristic/ |
| ** included service GATT ID. |
| ** |
| ** Returns GATT_ERROR is no recording found. BTA_GATT_OK if record found. |
| ** |
| *******************************************************************************/ |
| static tBTA_GATT_STATUS bta_gattc_find_record(tBTA_GATTC_SERV *p_srcb, |
| tBTA_GATTC_ATTR_TYPE attr_type, |
| tBTA_GATT_SRVC_ID *p_service_id, |
| tBTA_GATT_ID *p_start_rec, |
| tBT_UUID * p_uuid_cond, |
| tBTA_GATT_ID *p_result, |
| void *p_param) |
| { |
| tBTA_GATTC_CACHE *p_cache = p_srcb->p_srvc_cache; |
| tBTA_GATT_STATUS status = BTA_GATT_ERROR; |
| UINT8 i, j; |
| tBTA_GATTC_CACHE_ATTR *p_attr; |
| BOOLEAN char_found = FALSE, descr_found = FALSE; |
| tBTA_GATT_ID *p_descr_id = (tBTA_GATT_ID *)p_param;; |
| |
| for (i = 0; p_cache && status != BTA_GATT_OK; i ++) |
| { |
| if (bta_gattc_srvcid_compare(p_service_id, &p_cache->service_uuid)) |
| { |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("found matching service [0x%04x], inst[%d]", |
| p_cache->service_uuid.id.uuid.uu.uuid16, |
| p_cache->service_uuid.id.inst_id); |
| #endif |
| p_attr = p_cache->p_attr; |
| |
| for (j = 0; p_attr; j ++) |
| { |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("\t Attr[%d] handle[0x%04x] uuid[0x%04x] inst[%d] type[%d]", |
| j + 1, p_attr->attr_handle, |
| p_attr->p_uuid->uuid16, |
| p_attr->inst_id, |
| p_attr->attr_type); |
| #endif |
| bta_gattc_pack_attr_uuid(p_attr, &p_result->uuid); |
| |
| if (p_start_rec != NULL && char_found == FALSE) |
| { |
| /* find the starting record first */ |
| if (bta_gattc_uuid_compare(&p_start_rec->uuid, &p_result->uuid, FALSE) && |
| p_start_rec->inst_id == p_attr->inst_id && |
| (attr_type == p_attr->attr_type || |
| /* find descriptor would look for characteristic first */ |
| (attr_type == BTA_GATTC_ATTR_TYPE_CHAR_DESCR && |
| p_attr->attr_type == BTA_GATTC_ATTR_TYPE_CHAR))) |
| { |
| char_found = TRUE; |
| } |
| } |
| else |
| { |
| /* if looking for descriptor, here is the where the descrptor to be found */ |
| if (attr_type == BTA_GATTC_ATTR_TYPE_CHAR_DESCR) |
| { |
| /* next characeteristic already, return error */ |
| if (p_attr->attr_type != BTA_GATTC_ATTR_TYPE_CHAR_DESCR) |
| { |
| break; |
| } |
| else |
| { |
| /* find starting descriptor */ |
| if (p_descr_id != NULL && !descr_found) |
| { |
| if (bta_gattc_uuid_compare(&p_descr_id->uuid, &p_result->uuid, TRUE) |
| && p_descr_id->inst_id == p_attr->inst_id) |
| { |
| descr_found = TRUE; |
| } |
| } |
| else |
| { |
| /* with matching descriptor */ |
| if (bta_gattc_uuid_compare(p_uuid_cond, &p_result->uuid, FALSE)) |
| { |
| p_result->inst_id = p_attr->inst_id; |
| status = BTA_GATT_OK; |
| break; |
| } |
| } |
| } |
| } |
| else |
| { |
| if (bta_gattc_uuid_compare(p_uuid_cond, &p_result->uuid, FALSE) && |
| attr_type == p_attr->attr_type) |
| { |
| |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| APPL_TRACE_DEBUG("found char handle mapping characteristic"); |
| #endif |
| p_result->inst_id = p_attr->inst_id; |
| |
| if (p_param != NULL) |
| { |
| if (attr_type == BTA_GATTC_ATTR_TYPE_CHAR || |
| attr_type == BTA_GATTC_ATTR_TYPE_INCL_SRVC) |
| { |
| *(tBTA_GATT_CHAR_PROP *)p_param = p_attr->property; |
| } |
| } |
| |
| status = BTA_GATT_OK; |
| break; |
| } |
| } |
| } |
| p_attr = p_attr->p_next; |
| } |
| #if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE) |
| if (status) |
| { |
| APPL_TRACE_ERROR("In the given service, can not find matching record"); |
| } |
| #endif |
| break; |
| } |
| |
| p_cache = p_cache->p_next; |
| } |
| return status; |
| |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_query_cache |
| ** |
| ** Description search local cache for matching attribute record. |
| ** |
| ** Parameters conn_id: connection ID which identify the server. |
| ** p_srvc_id: the service ID of which the characteristic is belonged to. |
| ** *p_start_rec: start the search from the next record |
| ** after the one identified by *p_start_rec. |
| ** p_uuid_cond: UUID, if NULL find the first available |
| ** characteristic/included service. |
| ** p_output: output parameter which will store the GATT ID |
| ** of the characteristic /included service found. |
| ** |
| ** Returns BTA_GATT_ERROR is no recording found. BTA_GATT_OK if record found. |
| ** |
| *******************************************************************************/ |
| tBTA_GATT_STATUS bta_gattc_query_cache(UINT16 conn_id, |
| tBTA_GATTC_ATTR_TYPE query_type, |
| tBTA_GATT_SRVC_ID *p_srvc_id, |
| tBTA_GATT_ID *p_start_rec, |
| tBT_UUID *p_uuid_cond, |
| tBTA_GATT_ID *p_output, |
| void *p_param) |
| { |
| tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id); |
| tBTA_GATT_STATUS status = BTA_GATT_ILLEGAL_PARAMETER; |
| |
| if (p_clcb != NULL ) |
| { |
| if (p_clcb->state == BTA_GATTC_CONN_ST) |
| { |
| if (p_clcb->p_srcb && |
| !p_clcb->p_srcb->p_srvc_list && /* no active discovery */ |
| p_clcb->p_srcb->p_srvc_cache) |
| { |
| status = bta_gattc_find_record(p_clcb->p_srcb, |
| query_type, |
| p_srvc_id, |
| p_start_rec, |
| p_uuid_cond, |
| p_output, |
| p_param); |
| } |
| else |
| { |
| status = BTA_GATT_ERROR; |
| APPL_TRACE_ERROR("No server cache available"); |
| } |
| } |
| else |
| { |
| APPL_TRACE_ERROR("server cache not available, CLCB state = %d", p_clcb->state); |
| |
| status = (p_clcb->state == BTA_GATTC_DISCOVER_ST) ? BTA_GATT_BUSY : BTA_GATT_ERROR; |
| } |
| } |
| else |
| { |
| APPL_TRACE_ERROR("Unknown conn ID: %d", conn_id); |
| } |
| |
| return status; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_rebuild_cache |
| ** |
| ** Description rebuild server cache from NV cache. |
| ** |
| ** Parameters |
| ** |
| ** Returns None. |
| ** |
| *******************************************************************************/ |
| void bta_gattc_rebuild_cache(tBTA_GATTC_SERV *p_srvc_cb, UINT16 num_attr, |
| tBTA_GATTC_NV_ATTR *p_attr, UINT16 attr_index) |
| { |
| /* first attribute loading, initialize buffer */ |
| APPL_TRACE_ERROR("bta_gattc_rebuild_cache"); |
| if (attr_index == 0) |
| { |
| while (! fixed_queue_is_empty(p_srvc_cb->cache_buffer)) |
| osi_freebuf(fixed_queue_try_dequeue(p_srvc_cb->cache_buffer)); |
| |
| if (bta_gattc_alloc_cache_buf(p_srvc_cb) == NULL) |
| { |
| APPL_TRACE_ERROR("allocate cache buffer failed, no resources"); |
| } |
| else |
| { |
| p_srvc_cb->p_cur_srvc = p_srvc_cb->p_srvc_cache = NULL; |
| } |
| } |
| |
| while (num_attr > 0 && p_attr != NULL) |
| { |
| switch (p_attr->attr_type) |
| { |
| case BTA_GATTC_ATTR_TYPE_SRVC: |
| bta_gattc_add_srvc_to_cache(p_srvc_cb, |
| p_attr->s_handle, |
| p_attr->e_handle, |
| &p_attr->uuid, |
| p_attr->is_primary, |
| p_attr->id); |
| break; |
| |
| case BTA_GATTC_ATTR_TYPE_CHAR: |
| case BTA_GATTC_ATTR_TYPE_CHAR_DESCR: |
| case BTA_GATTC_ATTR_TYPE_INCL_SRVC: |
| bta_gattc_add_attr_to_cache(p_srvc_cb, |
| p_attr->s_handle, |
| &p_attr->uuid, |
| p_attr->prop, |
| p_attr->attr_type); |
| break; |
| } |
| p_attr ++; |
| num_attr --; |
| } |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_fill_nv_attr |
| ** |
| ** Description fill a NV attribute entry value |
| ** |
| ** Returns None. |
| ** |
| *******************************************************************************/ |
| void bta_gattc_fill_nv_attr(tBTA_GATTC_NV_ATTR *p_attr, UINT8 type, UINT16 s_handle, |
| UINT16 e_handle, UINT8 id, tBT_UUID uuid, UINT8 prop, |
| BOOLEAN is_primary) |
| { |
| p_attr->s_handle = s_handle; |
| p_attr->e_handle = e_handle; |
| p_attr->attr_type = type; |
| p_attr->is_primary = is_primary; |
| p_attr->id = id; |
| p_attr->prop = prop; |
| |
| memcpy(&p_attr->uuid, &uuid, sizeof(tBT_UUID)); |
| } |
| /******************************************************************************* |
| ** |
| ** Function bta_gattc_cache_save |
| ** |
| ** Description save the server cache into NV |
| ** |
| ** Returns None. |
| ** |
| *******************************************************************************/ |
| BOOLEAN bta_gattc_cache_save(tBTA_GATTC_SERV *p_srvc_cb, UINT16 conn_id) |
| { |
| tBTA_GATTC_CACHE *p_cur_srvc = p_srvc_cb->p_srvc_cache; |
| UINT8 i = 0; |
| UINT16 offset = 0; |
| tBTA_GATTC_NV_ATTR nv_attr[BTA_GATTC_NV_LOAD_MAX]; |
| tBTA_GATTC_CACHE_ATTR *p_attr; |
| tBT_UUID uuid; |
| |
| while (p_cur_srvc && i < BTA_GATTC_NV_LOAD_MAX) |
| { |
| if (offset ++ >= p_srvc_cb->attr_index) |
| { |
| bta_gattc_fill_nv_attr(&nv_attr[i++], |
| BTA_GATTC_ATTR_TYPE_SRVC, |
| p_cur_srvc->s_handle, |
| p_cur_srvc->e_handle, |
| p_cur_srvc->service_uuid.id.inst_id, |
| p_cur_srvc->service_uuid.id.uuid, |
| 0, |
| p_cur_srvc->service_uuid.is_primary); |
| } |
| |
| p_attr = p_cur_srvc->p_attr; |
| |
| for (; p_attr && i < BTA_GATTC_NV_LOAD_MAX ; offset ++, p_attr = p_attr->p_next) |
| { |
| if (offset >= p_srvc_cb->attr_index) |
| { |
| if ((uuid.len = p_attr->uuid_len) == LEN_UUID_16) |
| { |
| uuid.uu.uuid16 = p_attr->p_uuid->uuid16; |
| } |
| else |
| { |
| memcpy(uuid.uu.uuid128, p_attr->p_uuid->uuid128, LEN_UUID_128); |
| } |
| |
| bta_gattc_fill_nv_attr(&nv_attr[i++], |
| p_attr->attr_type, |
| p_attr->attr_handle, |
| 0, |
| p_attr->inst_id, |
| uuid, |
| p_attr->property, |
| FALSE); |
| } |
| } |
| p_cur_srvc = p_cur_srvc->p_next; |
| } |
| |
| if (i > 0) |
| { |
| bta_gattc_co_cache_save(p_srvc_cb->server_bda, BTA_GATTC_CI_CACHE_SAVE_EVT, i, |
| nv_attr, p_srvc_cb->attr_index, conn_id); |
| |
| p_srvc_cb->attr_index += i; |
| |
| return TRUE; |
| } |
| else |
| { |
| return FALSE; |
| } |
| } |
| #endif /* BTA_GATT_INCLUDED */ |
| |