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ece6bd9b82
esp-idf/components/bt/bluedroid/bta/gatt/bta_gattc_cache.c
Yulong ece6bd9b82 component/bt: Change the btc gattc callback function with the compile error. 
1. Change all the gattc API && bta gattc layer.
2. Debug the code and change the btc_ble_gattc_get_db method.
3. Change the gatt read API interface.
4. Reconstruction the BTA_gattc_cache code.
5. Change back the bluedroid_get_status to marco.
6. Change the gattc docs format.
7. Change the docs format.
8. fix the read char value bug.
9. change the gattc_get_attr_count method.
10. Change back the bta_gattc write ccc code.
11. Change the gattc api docs format
12. Change the gattc API docs.
13. Change the prepare write descriptor method to avoid the exection.
14. modify gatt clinet demo with new API
15. Change the p_src_data->read.p_value to avoid exection.
16. Change the bugfix of gattc unreg for the notify.

    component/bt: Added the serch service res start_handle & end_handle to the result.

component/bt: Added the bta_gattc_cache_write when gatt discovery complete.

component/bt: Added the bta_gattc_cache_write declaration.

component/bt: Added the comments for esp_ble_gattc_cache_refresh API.

component/bt: Change the spelling errors & some comment error.

component/bt: fix bug of get gattc cache address list error.

1. Change the esp_bluedroid_get_status to macro;
2. added the malloc & free for the get_addr_list

component/bt: Added the addr_info->ass_addr == NULL Judgment to prevent crashes in the bta_gattc_co_cache_find_src_addr function.

component/bt: Fixed following gattc cache bugs

1. gattc can't refresh the gattc cache in the gatt discover state;
2. remove the nvs_get_blob in the cache address init function;
3. added the nvs_set_blob return value judgment in the cache address save function;
4. added the list_new when ass_address is NULL;
5. Change the ass_address list remove method to fix the ass address can't remove bug.
2018-04-19 12:05:13 +08:00

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/******************************************************************************
*
* 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.
*
******************************************************************************/
#include "bt_target.h"
#if defined(GATTC_INCLUDED) && (GATTC_INCLUDED == TRUE)
#include <string.h>
#include "utl.h"
#include "bta_sys.h"
#include "sdp_api.h"
#include "sdpdefs.h"
#include "bta_gattc_int.h"
#include "btm_api.h"
#include "btm_ble_api.h"
#include "allocator.h"
#include "l2c_api.h"
#include "btm_int.h"
#include "errno.h"
#define LOG_TAG "bt_bta_gattc"
// #include "osi/include/log.h"
static void bta_gattc_char_dscpt_disc_cmpl(UINT16 conn_id, tBTA_GATTC_SERV *p_srvc_cb);
extern void bta_to_btif_uuid(bt_uuid_t *p_dest, tBT_UUID *p_src);
static size_t bta_gattc_get_db_size_with_type(list_t *services,
bt_gatt_db_attribute_type_t type,
tBT_UUID *char_uuid,
UINT16 start_handle, UINT16 end_handle);
static void bta_gattc_cache_write(BD_ADDR server_bda, UINT16 num_attr,
tBTA_GATTC_NV_ATTR *attr);
tBTA_GATTC_SERVICE* bta_gattc_find_matching_service(const list_t *services, UINT16 handle);
tBTA_GATTC_DESCRIPTOR* bta_gattc_get_descriptor_srcb(tBTA_GATTC_SERV *p_srcb, UINT16 handle);
tBTA_GATTC_CHARACTERISTIC* bta_gattc_get_characteristic_srcb(tBTA_GATTC_SERV *p_srcb, UINT16 handle);
void bta_gattc_fill_gatt_db_el(btgatt_db_element_t *p_attr,
bt_gatt_db_attribute_type_t type,
UINT16 att_handle,
UINT16 s_handle, UINT16 e_handle,
UINT16 id, tBT_UUID uuid, UINT8 prop);
#if (SDP_INCLUDED == TRUE)
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
#endif ///SDP_INCLUDED == TRUE
#define GATT_CACHE_PREFIX "/data/misc/bluetooth/gatt_cache_"
#define GATT_CACHE_VERSION 2
static void bta_gattc_generate_cache_file_name(char *buffer, BD_ADDR bda)
{
sprintf(buffer, "%s%02x%02x%02x%02x%02x%02x", GATT_CACHE_PREFIX,
bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
}
/*****************************************************************************
** Constants and data types
*****************************************************************************/
#if (SDP_INCLUDED == TRUE)
typedef struct
{
tSDP_DISCOVERY_DB *p_sdp_db;
UINT16 sdp_conn_id;
} tBTA_GATTC_CB_DATA;
#endif ///SDP_INCLUDED == TRUE
#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 */
bool display_cache_attribute(void *data, void *context)
{
//tBTA_GATTC_CACHE_ATTR *p_attr = data;
//APPL_TRACE_ERROR("\t Attr handle[%d] uuid[0x%04x] type[%s] prop[0x%1x]",
// p_attr->handle, p_attr->uuid.uu.uuid16,
// bta_gattc_attr_type[p_attr->attr_type], p_attr->property);
return true;
}
bool display_cache_service(void *data, void *context)
{
tBTA_GATTC_SERVICE *p_cur_srvc = data;
LOG_INFO("Service: handle[%d ~ %d] %s[0x%04x] inst[%d]",
p_cur_srvc->s_handle, p_cur_srvc->e_handle,
((p_cur_srvc->uuid.len == 2) ? "uuid16" : "uuid128"),
p_cur_srvc->uuid.uu.uuid16,
p_cur_srvc->handle);
if (p_cur_srvc->characteristics != NULL) {
list_foreach(p_cur_srvc->characteristics, display_cache_attribute, NULL);
}
return true;
}
/*******************************************************************************
**
** Function bta_gattc_display_cache_server
**
** Description debug function to display the server cache.
**
** Returns none.
**
*******************************************************************************/
static void bta_gattc_display_cache_server(list_t *p_cache)
{
APPL_TRACE_ERROR("<================Start Server Cache =============>");
list_foreach(p_cache, display_cache_service, NULL);
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_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)
{
if (p_srvc_cb->p_srvc_cache != NULL) {
list_free(p_srvc_cb->p_srvc_cache);
p_srvc_cb->p_srvc_cache = NULL;
}
osi_free(p_srvc_cb->p_srvc_list);
if ((p_srvc_cb->p_srvc_list = (tBTA_GATTC_ATTR_REC *)osi_malloc(BTA_GATTC_ATTR_LIST_SIZE)) == NULL) {
APPL_TRACE_DEBUG("No resources: GKI buffer allocation failed.");
return BTA_GATT_NO_RESOURCES;
} else {
p_srvc_cb->total_srvc = 0;
p_srvc_cb->cur_srvc_idx = 0;
p_srvc_cb->cur_char_idx = 0;
p_srvc_cb->next_avail_idx = 0;
p_srvc_cb->total_attr = 0;
}
return BTA_GATT_OK;
}
static void characteristic_free(void *ptr)
{
tBTA_GATTC_CHARACTERISTIC *p_char = ptr;
list_free(p_char->descriptors);
osi_free(p_char);
}
static void service_free(void *ptr)
{
tBTA_GATTC_SERVICE *srvc = ptr;
list_free(srvc->characteristics);
list_free(srvc->included_svc);
osi_free(srvc);
}
static void bta_gattc_free(void *ptr)
{
osi_free(ptr);
}
/*******************************************************************************
**
** 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)
{
#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
APPL_TRACE_DEBUG("Add a service into Service");
#endif
tBTA_GATTC_SERVICE *p_new_srvc = osi_malloc(sizeof(tBTA_GATTC_SERVICE));
if (!p_new_srvc) {
APPL_TRACE_WARNING("%s(), no resource.", __func__);
return BTA_GATT_NO_RESOURCES;
}
/* update service information */
p_new_srvc->s_handle = s_handle;
p_new_srvc->e_handle = e_handle;
p_new_srvc->is_primary = is_primary;
memcpy(&p_new_srvc->uuid, p_uuid, sizeof(tBT_UUID));
p_new_srvc->handle = s_handle;
p_new_srvc->characteristics = list_new(characteristic_free);
p_new_srvc->included_svc = list_new(bta_gattc_free);
if (p_srvc_cb->p_srvc_cache == NULL) {
p_srvc_cb->p_srvc_cache = list_new(service_free);
}
list_append(p_srvc_cb->p_srvc_cache, p_new_srvc);
return BTA_GATT_OK;
}
static tBTA_GATT_STATUS bta_gattc_add_char_to_cache(tBTA_GATTC_SERV *p_srvc_cb,
UINT16 attr_handle,
UINT16 value_handle,
tBT_UUID *p_uuid,
UINT8 property)
{
#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
APPL_TRACE_DEBUG("%s: Add a characteristic into Service", __func__);
APPL_TRACE_DEBUG("handle=%d uuid16=0x%x property=0x%x",
value_handle, p_uuid->uu.uuid16, property);
#endif
tBTA_GATTC_SERVICE *service = bta_gattc_find_matching_service(p_srvc_cb->p_srvc_cache, attr_handle);
if (!service) {
APPL_TRACE_ERROR("Illegal action to add char/descr/incl srvc for non-existing service!");
return GATT_WRONG_STATE;
}
/* TODO(jpawlowski): We should use attribute handle, not value handle to refer to characteristic.
This is just a temporary workaround.
*/
if (service->e_handle < value_handle)
service->e_handle = value_handle;
tBTA_GATTC_CHARACTERISTIC *characteristic = osi_malloc(sizeof(tBTA_GATTC_CHARACTERISTIC));
if (!characteristic) {
APPL_TRACE_WARNING("%s(), no resource.", __func__);
return BTA_GATT_NO_RESOURCES;
}
characteristic->handle = value_handle;
characteristic->properties = property;
characteristic->descriptors = list_new(bta_gattc_free);
memcpy(&characteristic->uuid, p_uuid, sizeof(tBT_UUID));
characteristic->service = service;
list_append(service->characteristics, characteristic);
return BTA_GATT_OK;
}
/*******************************************************************************
**
** 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,
UINT16 incl_srvc_s_handle,
tBTA_GATTC_ATTR_TYPE type)
{
#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
APPL_TRACE_DEBUG("%s: Add a [%s] into Service", __func__, 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);
#endif
tBTA_GATTC_SERVICE *service = bta_gattc_find_matching_service(p_srvc_cb->p_srvc_cache, handle);
if (!service) {
APPL_TRACE_ERROR("Illegal action to add char/descr/incl srvc for non-existing service!");
return GATT_WRONG_STATE;
}
if (type == BTA_GATTC_ATTR_TYPE_INCL_SRVC) {
tBTA_GATTC_INCLUDED_SVC *isvc =
osi_malloc(sizeof(tBTA_GATTC_INCLUDED_SVC));
if (!isvc) {
APPL_TRACE_WARNING("%s(), no resource.", __func__);
return BTA_GATT_NO_RESOURCES;
}
isvc->handle = handle;
memcpy(&isvc->uuid, p_uuid, sizeof(tBT_UUID));
isvc->incl_srvc_s_handle = incl_srvc_s_handle;
isvc->owning_service = service;
isvc->included_service = bta_gattc_find_matching_service(
p_srvc_cb->p_srvc_cache, incl_srvc_s_handle);
if (!isvc->included_service) {
APPL_TRACE_ERROR("%s: Illegal action to add non-existing included service!", __func__);
osi_free(isvc);
return GATT_WRONG_STATE;
}
list_append(service->included_svc, isvc);
} else if (type == BTA_GATTC_ATTR_TYPE_CHAR_DESCR) {
tBTA_GATTC_DESCRIPTOR *descriptor =
osi_malloc(sizeof(tBTA_GATTC_DESCRIPTOR));
if (!descriptor) {
APPL_TRACE_WARNING("%s(), no resource.", __func__);
return BTA_GATT_NO_RESOURCES;
}
descriptor->handle = handle;
memcpy(&descriptor->uuid, p_uuid, sizeof(tBT_UUID));
if (service->characteristics == NULL ||
list_is_empty(service->characteristics)) {
APPL_TRACE_ERROR("%s: Illegal action to add descriptor before adding a characteristic!",
__func__);
osi_free(descriptor);
return GATT_WRONG_STATE;
}
tBTA_GATTC_CHARACTERISTIC *char_node = list_back(service->characteristics);
descriptor->characteristic = char_node;
list_append(char_node->descriptors, descriptor);
}
return BTA_GATT_OK;
}
/*******************************************************************************
**
** 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 {
#if (SDP_INCLUDED == TRUE)
status = bta_gattc_sdp_service_disc(conn_id, p_server_cb);
#endif ///SDP_INCLUDED == TRUE
}
}
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(&param, 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, &param.s_handle, &param.e_handle, is_service);
if (param.s_handle > param.e_handle) {
return GATT_ERROR;
}
}
return GATTC_Discover (conn_id, disc_type, &param);
}
/*******************************************************************************
**
** 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) == 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_DEBUG("%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
//server discover end, update connection parameters
#if BLE_INCLUDED == TRUE
if (p_clcb->transport == BTA_TRANSPORT_LE) {
L2CA_EnableUpdateBleConnParams(p_clcb->p_srcb->server_bda, TRUE);
}
#endif
/* save cache to NV */
p_clcb->p_srcb->state = BTA_GATTC_SERV_SAVE;
bta_gattc_cache_save(p_clcb->p_srcb, p_clcb->bta_conn_id);
bta_gattc_reset_discover_st(p_clcb->p_srcb, BTA_GATT_OK);
}
/*******************************************************************************
**
** 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_char_to_cache (p_srvc_cb,
p_rec->char_decl_handle,
p_rec->s_handle,
&p_rec->uuid,
p_rec->property);
/* 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_char_to_cache (p_srvc_cb,
p_rec->char_decl_handle,
p_rec->s_handle,
&p_rec->uuid,
p_rec->property);
/* 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;
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->char_decl_handle = decl_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
**
*******************************************************************************/
#if (SDP_INCLUDED == TRUE)
void bta_gattc_sdp_callback(UINT16 sdp_status, void* user_data)
{
tSDP_DISC_REC *p_sdp_rec = NULL;
tBT_UUID service_uuid;
tSDP_PROTOCOL_ELEM pe;
UINT16 start_handle = 0, end_handle = 0;
tBTA_GATTC_CB_DATA *cb_data = user_data;
tBTA_GATTC_SERV *p_srvc_cb = bta_gattc_find_scb_by_cid(cb_data->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(cb_data->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(cb_data->sdp_conn_id, p_srvc_cb);
}
else
{
APPL_TRACE_ERROR("GATT service discovery is done on unknown connection");
}
/* both were allocated in bta_gattc_sdp_service_disc */
osi_free(cb_data->p_sdp_db);
osi_free(cb_data);
}
#endif ///SDP_INCLUDED == TRUE
/*******************************************************************************
**
** Function bta_gattc_sdp_service_disc
**
** Description Start DSP Service Discovert
**
** Returns void
**
*******************************************************************************/
#if (SDP_INCLUDED == TRUE)
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];
memset (&uuid, 0, sizeof(tSDP_UUID));
uuid.len = LEN_UUID_16;
uuid.uu.uuid16 = UUID_PROTOCOL_ATT;
/*
* On success, cb_data will be freed inside bta_gattc_sdp_callback,
* otherwise it will be freed within this function.
*/
tBTA_GATTC_CB_DATA *cb_data =
(tBTA_GATTC_CB_DATA *)osi_malloc(sizeof(tBTA_GATTC_CB_DATA));
cb_data->p_sdp_db = (tSDP_DISCOVERY_DB *)osi_malloc(BTA_GATT_SDP_DB_SIZE);
if (!cb_data || cb_data->p_sdp_db) {
APPL_TRACE_WARNING("%s(), no resource.", __func__);
return BTA_GATT_NO_RESOURCES;
}
attr_list[0] = ATTR_ID_SERVICE_CLASS_ID_LIST;
attr_list[1] = ATTR_ID_PROTOCOL_DESC_LIST;
SDP_InitDiscoveryDb(cb_data->p_sdp_db, BTA_GATT_SDP_DB_SIZE, 1,
&uuid, num_attrs, attr_list);
if (!SDP_ServiceSearchAttributeRequest2(p_server_cb->server_bda,
cb_data->p_sdp_db, &bta_gattc_sdp_callback, cb_data))
{
osi_free(cb_data->p_sdp_db);
osi_free(cb_data);
return BTA_GATT_ERROR;
}
cb_data->sdp_conn_id = conn_id;
return BTA_GATT_OK;
}
#endif ///SDP_INCLUDED == TRUE
/*******************************************************************************
**
** 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) {
p_srvc_cb->total_attr++;
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,
p_data->value.incl_service.s_handle,
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,
0 /* incl_srvc_handle */,
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 (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_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 cb_data;
if (!p_clcb->p_srcb->p_srvc_cache || list_is_empty(p_clcb->p_srcb->p_srvc_cache))
return;
for (list_node_t *sn = list_begin(p_clcb->p_srcb->p_srvc_cache);
sn != list_end(p_clcb->p_srcb->p_srvc_cache); sn = list_next(sn)) {
tBTA_GATTC_SERVICE *p_cache = list_node(sn);
if (!bta_gattc_uuid_compare(p_uuid, &p_cache->uuid, FALSE))
continue;
#if (defined BTA_GATT_DEBUG && BTA_GATT_DEBUG == TRUE)
APPL_TRACE_DEBUG("found service [0x%04x], inst[%d] handle [%d]",
p_cache->uuid.uu.uuid16,
p_cache->handle,
p_cache->s_handle);
#endif
if (!p_clcb->p_rcb->p_cback)
continue;
memset(&cb_data, 0, sizeof(tBTA_GATTC));
cb_data.srvc_res.conn_id = p_clcb->bta_conn_id;
cb_data.srvc_res.service_uuid.inst_id = p_cache->handle;
cb_data.srvc_res.start_handle = p_cache->s_handle;
cb_data.srvc_res.end_handle = p_cache->e_handle;
memcpy(&cb_data.srvc_res.service_uuid.uuid, &p_cache->uuid, sizeof(tBTA_GATT_ID));
(* p_clcb->p_rcb->p_cback)(BTA_GATTC_SEARCH_RES_EVT, &cb_data);
}
}
list_t* bta_gattc_get_services_srcb(tBTA_GATTC_SERV *p_srcb) {
if (!p_srcb || !p_srcb->p_srvc_cache || list_is_empty(p_srcb->p_srvc_cache))
return NULL;
return p_srcb->p_srvc_cache;
}
const list_t* bta_gattc_get_services(UINT16 conn_id) {
tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
if (p_clcb == NULL )
return NULL;
tBTA_GATTC_SERV *p_srcb = p_clcb->p_srcb;
return bta_gattc_get_services_srcb(p_srcb);
}
tBTA_GATTC_SERVICE* bta_gattc_find_matching_service(const list_t *services, UINT16 handle) {
if (!services || list_is_empty(services))
return NULL;
for (list_node_t *sn = list_begin(services);
sn != list_end(services); sn = list_next(sn)) {
tBTA_GATTC_SERVICE *service = list_node(sn);
if (handle >= service->s_handle && handle <= service->e_handle)
return service;
}
return NULL;
}
const tBTA_GATTC_SERVICE* bta_gattc_get_service_for_handle_srcb(tBTA_GATTC_SERV *p_srcb, UINT16 handle)
{
const list_t *services = bta_gattc_get_services_srcb(p_srcb);
return bta_gattc_find_matching_service(services, handle);
}
const tBTA_GATTC_SERVICE* bta_gattc_get_service_for_handle(UINT16 conn_id, UINT16 handle)
{
const list_t *services = bta_gattc_get_services(conn_id);
return bta_gattc_find_matching_service(services, handle);
}
tBTA_GATTC_CHARACTERISTIC* bta_gattc_get_characteristic_srcb(tBTA_GATTC_SERV *p_srcb, UINT16 handle)
{
const tBTA_GATTC_SERVICE* service = bta_gattc_get_service_for_handle_srcb(p_srcb, handle);
if (!service)
return NULL;
for (list_node_t *cn = list_begin(service->characteristics);
cn != list_end(service->characteristics); cn = list_next(cn)) {
tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
if (handle == p_char->handle)
return p_char;
}
return NULL;
}
tBTA_GATTC_CHARACTERISTIC* bta_gattc_get_characteristic(UINT16 conn_id, UINT16 handle)
{
tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
if (p_clcb == NULL )
return NULL;
tBTA_GATTC_SERV *p_srcb = p_clcb->p_srcb;
return bta_gattc_get_characteristic_srcb(p_srcb, handle);
}
tBTA_GATTC_DESCRIPTOR* bta_gattc_get_descriptor_srcb(tBTA_GATTC_SERV *p_srcb, UINT16 handle)
{
const tBTA_GATTC_SERVICE* service = bta_gattc_get_service_for_handle_srcb(p_srcb, handle);
if (!service) {
return NULL;
}
for (list_node_t *cn = list_begin(service->characteristics);
cn != list_end(service->characteristics); cn = list_next(cn)) {
tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
for (list_node_t *dn = list_begin(p_char->descriptors);
dn != list_end(p_char->descriptors); dn = list_next(dn)) {
tBTA_GATTC_DESCRIPTOR *p_desc = list_node(dn);
if (handle == p_desc->handle)
return p_desc;
}
}
return NULL;
}
tBTA_GATTC_DESCRIPTOR* bta_gattc_get_descriptor(UINT16 conn_id, UINT16 handle)
{
tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
if (p_clcb == NULL )
return NULL;
tBTA_GATTC_SERV *p_srcb = p_clcb->p_srcb;
return bta_gattc_get_descriptor_srcb(p_srcb, handle);
}
void bta_gattc_get_service_with_uuid(UINT16 conn_id, tBT_UUID *svc_uuid,
btgatt_db_element_t **svc_db,
int *count)
{
const list_t* svc = bta_gattc_get_services(conn_id);
size_t db_size = list_length(svc);
void *buffer = osi_malloc(db_size*sizeof(btgatt_db_element_t));
if (!buffer) {
APPL_TRACE_WARNING("%s(), no resource.", __func__);
*svc_db = NULL;
*count = 0;
return;
}
btgatt_db_element_t *curr_db_attr = buffer;
db_size = 0;
for (list_node_t *sn = list_begin(svc);
sn != list_end(svc); sn = list_next(sn)) {
tBTA_GATTC_SERVICE *p_cur_srvc = list_node(sn);
if (svc_uuid == NULL || bta_gattc_uuid_compare(svc_uuid, &p_cur_srvc->uuid, TRUE)) {
bta_gattc_fill_gatt_db_el(curr_db_attr,
p_cur_srvc->is_primary ?
BTGATT_DB_PRIMARY_SERVICE :
BTGATT_DB_SECONDARY_SERVICE,
0 /* att_handle */,
p_cur_srvc->s_handle /* s_handle */,
p_cur_srvc->e_handle /* e_handle */,
p_cur_srvc->s_handle,
p_cur_srvc->uuid,
0 /* prop */);
db_size++;
curr_db_attr++;
}
}
*svc_db = buffer;
*count = db_size;
}
/*******************************************************************************
**
** Function bta_gattc_fill_gatt_db_el
**
** Description fill a btgatt_db_element_t value
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_fill_gatt_db_el(btgatt_db_element_t *p_attr,
bt_gatt_db_attribute_type_t type,
UINT16 att_handle,
UINT16 s_handle, UINT16 e_handle,
UINT16 id, tBT_UUID uuid, UINT8 prop)
{
p_attr->type = type;
p_attr->attribute_handle = att_handle;
p_attr->start_handle = s_handle;
p_attr->end_handle = e_handle;
p_attr->id = id;
p_attr->properties = prop;
bta_to_btif_uuid(&p_attr->uuid, &uuid);
}
void bta_gattc_get_db_with_opration(UINT16 conn_id,
bt_gatt_get_db_op_t op,
UINT16 char_handle,
tBT_UUID *incl_uuid,
tBT_UUID *char_uuid,
tBT_UUID *descr_uuid,
UINT16 start_handle, UINT16 end_handle,
btgatt_db_element_t **char_db,
int *count)
{
tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
if (p_clcb == NULL) {
return NULL;
}
tBTA_GATTC_SERV *p_srcb = p_clcb->p_srcb;
if (!p_srcb->p_srvc_cache || list_is_empty(p_srcb->p_srvc_cache)) {
APPL_TRACE_DEBUG("the service cache is empty.");
*count = 0;
*char_db = NULL;
return;
}
size_t db_size = ((end_handle - start_handle) < p_srcb->total_attr) ? (end_handle - start_handle) : p_srcb->total_attr;
if (!db_size) {
APPL_TRACE_DEBUG("the db size is 0.");
*count = 0;
*char_db = NULL;
return;
}
void *buffer = osi_malloc(db_size*sizeof(btgatt_db_element_t));
if (!buffer) {
APPL_TRACE_DEBUG("the buffer is NULL.");
*count = 0;
*char_db = NULL;
return;
}
btgatt_db_element_t *curr_db_attr = buffer;
db_size = 0;
for (list_node_t *sn = list_begin(p_srcb->p_srvc_cache);
sn != list_end(p_srcb->p_srvc_cache); sn = list_next(sn)) {
tBTA_GATTC_SERVICE *p_cur_srvc = list_node(sn);
if (p_cur_srvc->e_handle < start_handle) {
continue;
}
if (p_cur_srvc->s_handle > end_handle) {
break;
}
if (op == GATT_OP_GET_INCLUDE_SVC) {
if (!p_cur_srvc->included_svc || list_is_empty(p_cur_srvc->included_svc))
continue;
for (list_node_t *isn = list_begin(p_cur_srvc->included_svc);
isn != list_end(p_cur_srvc->included_svc); isn = list_next(isn)) {
tBTA_GATTC_INCLUDED_SVC *p_isvc = list_node(isn);
if (p_isvc->handle < start_handle) {
continue;
}
if (p_isvc->handle > end_handle) {
*char_db = buffer;
*count = db_size;
return;
}
if (!incl_uuid || bta_gattc_uuid_compare(&p_isvc->uuid, incl_uuid, TRUE)) {
bta_gattc_fill_gatt_db_el(curr_db_attr,
BTGATT_DB_INCLUDED_SERVICE,
p_isvc->handle,
p_isvc->incl_srvc_s_handle /* s_handle */,
0 /* e_handle */,
p_isvc->handle,
p_isvc->uuid,
0 /* property */);
curr_db_attr++;
db_size++;
}
}
continue;
}
if (!p_cur_srvc->characteristics || list_is_empty(p_cur_srvc->characteristics)) {
continue;
}
for (list_node_t *cn = list_begin(p_cur_srvc->characteristics);
cn != list_end(p_cur_srvc->characteristics); cn = list_next(cn)) {
tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
if (p_char->handle < start_handle) {
continue;
}
if (p_char->handle > end_handle) {
*char_db = buffer;
*count = db_size;
return;
}
if ((op == GATT_OP_GET_ALL_CHAR || op == GATT_OP_GET_CHAR_BY_UUID) &&
(char_uuid == NULL || bta_gattc_uuid_compare(&p_char->uuid, char_uuid, TRUE))) {
APPL_TRACE_DEBUG("%s(), uuid match.", __func__);
bta_gattc_fill_gatt_db_el(curr_db_attr,
BTGATT_DB_CHARACTERISTIC,
p_char->handle,
0 /* s_handle */,
0 /* e_handle */,
p_char->handle,
p_char->uuid,
p_char->properties);
curr_db_attr++;
db_size++;
continue;
}
if (!p_char->descriptors || list_is_empty(p_char->descriptors)) {
continue;
}
if ((op == GATT_OP_GET_DESCRI_BY_HANDLE || op == GATT_OP_GET_ALL_DESCRI) && (p_char->handle != char_handle)) {
continue;
}
if ((op == GATT_OP_GET_DESCRI_BY_UUID) &&
!bta_gattc_uuid_compare(&p_char->uuid, char_uuid, TRUE)) {
continue;
}
if (op == GATT_OP_GET_ALL_DESCRI || op == GATT_OP_GET_DESCRI_BY_UUID || op == GATT_OP_GET_DESCRI_BY_HANDLE) {
for (list_node_t *dn = list_begin(p_char->descriptors);
dn != list_end(p_char->descriptors); dn = list_next(dn)) {
tBTA_GATTC_DESCRIPTOR *p_desc = list_node(dn);
if (p_desc->handle < start_handle) {
continue;
}
if (p_desc->handle > end_handle) {
*char_db = buffer;
*count = db_size;
return;
}
if (((op == GATT_OP_GET_ALL_DESCRI || op == GATT_OP_GET_DESCRI_BY_UUID) &&
(descr_uuid == NULL || bta_gattc_uuid_compare(&p_desc->uuid, descr_uuid, TRUE))) ||
(op == GATT_OP_GET_DESCRI_BY_HANDLE && bta_gattc_uuid_compare(&p_desc->uuid, descr_uuid, TRUE))) {
bta_gattc_fill_gatt_db_el(curr_db_attr,
BTGATT_DB_DESCRIPTOR,
p_desc->handle,
0 /* s_handle */,
0 /* e_handle */,
p_desc->handle,
p_desc->uuid,
0 /* property */);
curr_db_attr++;
db_size++;
}
}
}
}
}
*char_db = buffer;
*count = db_size;
}
static size_t bta_gattc_get_db_size_with_type(list_t *services,
bt_gatt_db_attribute_type_t type,
tBT_UUID *char_uuid,
UINT16 start_handle, UINT16 end_handle)
{
if (!services || list_is_empty(services)) {
return 0;
}
size_t db_size = 0;
UINT16 svc_length = list_length(services) - 1;
for (list_node_t *sn = list_begin(services);
sn != list_end(services); sn = list_next(sn), svc_length--) {
tBTA_GATTC_SERVICE *p_cur_srvc = list_node(sn);
if (p_cur_srvc->e_handle < start_handle) {
continue;
}
if (p_cur_srvc->s_handle > end_handle) {
break;
}
if (type == BTGATT_DB_PRIMARY_SERVICE || type == BTGATT_DB_SECONDARY_SERVICE) {
if ((type == BTGATT_DB_PRIMARY_SERVICE && p_cur_srvc->is_primary) ||
(type == BTGATT_DB_SECONDARY_SERVICE && !p_cur_srvc->is_primary)) {
// if the current service is the last service in the db, need to ensure the current service start handle is not less than the start_handle.
if (!svc_length) {
if (p_cur_srvc->s_handle >= start_handle) {
db_size++;
}
} else {
db_size++;
}
}
continue;
}
if (p_cur_srvc->included_svc && (type == BTGATT_DB_INCLUDED_SERVICE)) {
for (list_node_t *isn = list_begin(p_cur_srvc->included_svc);
isn != list_end(p_cur_srvc->included_svc); isn = list_next(isn)) {
tBTA_GATTC_INCLUDED_SVC *p_isvc = list_node(isn);
if (p_isvc->handle < start_handle) {
continue;
}
if (p_isvc->handle > end_handle) {
return db_size;
}
db_size++;
}
continue;
}
if (!p_cur_srvc->characteristics || list_is_empty(p_cur_srvc->characteristics)) {
continue;
}
if (char_uuid != NULL) {
for (list_node_t *cn = list_begin(p_cur_srvc->characteristics);
cn != list_end(p_cur_srvc->characteristics); cn = list_next(cn)) {
tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
if (p_char->handle < start_handle) {
continue;
}
if (p_char->handle > end_handle) {
return db_size;
}
if ((type == BTGATT_DB_CHARACTERISTIC) && bta_gattc_uuid_compare(&p_char->uuid, char_uuid, TRUE)) {
db_size++;
continue;
}
if (p_char->descriptors && (type == BTGATT_DB_DESCRIPTOR) && bta_gattc_uuid_compare(&p_char->uuid, char_uuid, TRUE)) {
for (list_node_t *dn = list_begin(p_char->descriptors);
dn != list_end(p_char->descriptors); dn = list_next(dn)) {
tBTA_GATTC_DESCRIPTOR *p_desc = list_node(dn);
if (p_desc->handle < start_handle) {
continue;
}
if (p_desc->handle > end_handle) {
return db_size;
}
db_size++;
}
}
}
} else {
if (type == BTGATT_DB_CHARACTERISTIC) {
for (list_node_t *cn = list_begin(p_cur_srvc->characteristics);
cn != list_end(p_cur_srvc->characteristics); cn = list_next(cn)) {
tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
if (p_char->handle < start_handle) {
continue;
}
if (p_char->handle > end_handle) {
return db_size;
}
db_size++;
}
}
}
}
return db_size;
}
/*******************************************************************************
** Returns number of elements inside db from start_handle to end_handle
*******************************************************************************/
static size_t bta_gattc_get_db_size(list_t *services,
UINT16 start_handle, UINT16 end_handle)
{
if (!services || list_is_empty(services))
return 0;
size_t db_size = 0;
UINT16 svc_length = list_length(services) - 1;
for (list_node_t *sn = list_begin(services);
sn != list_end(services); sn = list_next(sn), svc_length--) {
tBTA_GATTC_SERVICE *p_cur_srvc = list_node(sn);
if (p_cur_srvc->e_handle < start_handle) {
continue;
}
if (p_cur_srvc->s_handle > end_handle) {
break;
}
if (!svc_length) {
if (p_cur_srvc->s_handle >= start_handle) {
db_size++;
}
} else {
db_size++;
}
if (!p_cur_srvc->characteristics || list_is_empty(p_cur_srvc->characteristics))
continue;
for (list_node_t *cn = list_begin(p_cur_srvc->characteristics);
cn != list_end(p_cur_srvc->characteristics); cn = list_next(cn)) {
tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
if (p_char->handle < start_handle) {
continue;
}
if (p_char->handle > end_handle) {
return db_size;
}
db_size++;
if (p_char->descriptors) {
for (list_node_t *dn = list_begin(p_char->descriptors);
dn != list_end(p_char->descriptors); dn = list_next(dn)) {
tBTA_GATTC_DESCRIPTOR *p_desc = list_node(dn);
if (p_desc->handle < start_handle) {
continue;
}
if (p_desc->handle > end_handle) {
return db_size;
}
db_size++;
}
}
}
if (p_cur_srvc->included_svc) {
for (list_node_t *isn = list_begin(p_cur_srvc->included_svc);
isn != list_end(p_cur_srvc->included_svc); isn = list_next(isn)) {
tBTA_GATTC_INCLUDED_SVC *p_isvc = list_node(isn);
if (p_isvc->handle < start_handle) {
continue;
}
if (p_isvc->handle > end_handle) {
return db_size;
}
db_size++;
}
}
}
return db_size;
}
void bta_gattc_get_db_size_handle(UINT16 conn_id, UINT16 start_handle, UINT16 end_handle, int *count)
{
tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
if (p_clcb == NULL) {
return NULL;
}
tBTA_GATTC_SERV *p_srcb = p_clcb->p_srcb;
if (!p_srcb->p_srvc_cache || list_is_empty(p_srcb->p_srvc_cache)) {
*count = 0;
return;
}
*count = bta_gattc_get_db_size(p_srcb->p_srvc_cache, start_handle, end_handle);
}
void bta_gattc_get_db_size_with_type_handle(UINT16 conn_id, bt_gatt_db_attribute_type_t type,
UINT16 start_handle, UINT16 end_handle, UINT16 char_handle, int *count)
{
tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
if (p_clcb == NULL) {
return NULL;
}
tBTA_GATTC_SERV *p_srcb = p_clcb->p_srcb;
if (!p_srcb->p_srvc_cache || list_is_empty(p_srcb->p_srvc_cache)) {
*count = 0;
return;
}
if (type == BTGATT_DB_DESCRIPTOR) {
if (char_handle == BTA_GATTC_INVALID_HANDLE) {
*count = 0;
return;
} else {
tBTA_GATTC_CHARACTERISTIC *char_db = bta_gattc_get_characteristic(conn_id, char_handle);
*count = char_db ? list_length(char_db->descriptors) : 0;
return;
}
}
*count = bta_gattc_get_db_size_with_type(p_srcb->p_srvc_cache, type, NULL, start_handle, end_handle);
}
/*******************************************************************************
**
** Function bta_gattc_get_gatt_db_impl
**
** Description copy the server GATT database into db parameter.
**
** Parameters p_srvc_cb: server.
** db: output parameter which will contain GATT database copy.
** Caller is responsible for freeing it.
** count: output parameter which will contain number of
** elements in database.
**
** Returns None.
**
*******************************************************************************/
static void bta_gattc_get_gatt_db_impl(tBTA_GATTC_SERV *p_srvc_cb,
UINT16 start_handle, UINT16 end_handle,
btgatt_db_element_t **db,
int *count)
{
APPL_TRACE_DEBUG("%s: start_handle 0x%04x, end_handle 0x%04x",
__func__, start_handle, end_handle);
if (!p_srvc_cb->p_srvc_cache || list_is_empty(p_srvc_cb->p_srvc_cache)) {
*count = 0;
*db = NULL;
return;
}
size_t db_size = bta_gattc_get_db_size(p_srvc_cb->p_srvc_cache, start_handle, end_handle);
void* buffer = osi_malloc(db_size * sizeof(btgatt_db_element_t));
if (!buffer) {
APPL_TRACE_WARNING("%s(), no resource.", __func__);
*db = NULL;
*count = 0;
return;
}
btgatt_db_element_t *curr_db_attr = buffer;
for (list_node_t *sn = list_begin(p_srvc_cb->p_srvc_cache);
sn != list_end(p_srvc_cb->p_srvc_cache); sn = list_next(sn)) {
tBTA_GATTC_SERVICE *p_cur_srvc = list_node(sn);
if (p_cur_srvc->e_handle < start_handle) {
continue;
}
if (p_cur_srvc->s_handle > end_handle) {
break;
}
bta_gattc_fill_gatt_db_el(curr_db_attr,
p_cur_srvc->is_primary ?
BTGATT_DB_PRIMARY_SERVICE :
BTGATT_DB_SECONDARY_SERVICE,
0 /* att_handle */,
p_cur_srvc->s_handle,
p_cur_srvc->e_handle,
p_cur_srvc->s_handle,
p_cur_srvc->uuid,
0 /* prop */);
curr_db_attr++;
if (p_cur_srvc->characteristics && !list_is_empty(p_cur_srvc->characteristics)) {
for (list_node_t *cn = list_begin(p_cur_srvc->characteristics);
cn != list_end(p_cur_srvc->characteristics); cn = list_next(cn)) {
tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
if (p_char->handle < start_handle) {
continue;
}
if (p_char->handle > end_handle) {
*db = buffer;
*count = db_size;
return;
}
bta_gattc_fill_gatt_db_el(curr_db_attr,
BTGATT_DB_CHARACTERISTIC,
p_char->handle,
0 /* s_handle */,
0 /* e_handle */,
p_char->handle,
p_char->uuid,
p_char->properties);
curr_db_attr++;
if (!p_char->descriptors || list_is_empty(p_char->descriptors))
continue;
for (list_node_t *dn = list_begin(p_char->descriptors);
dn != list_end(p_char->descriptors); dn = list_next(dn)) {
tBTA_GATTC_DESCRIPTOR *p_desc = list_node(dn);
if (p_desc->handle < start_handle) {
continue;
}
if (p_desc->handle > end_handle) {
*db = buffer;
*count = db_size;
return;
}
bta_gattc_fill_gatt_db_el(curr_db_attr,
BTGATT_DB_DESCRIPTOR,
p_desc->handle,
0 /* s_handle */,
0 /* e_handle */,
p_desc->handle,
p_desc->uuid,
0 /* property */);
curr_db_attr++;
}
}
}
if (!p_cur_srvc->included_svc || list_is_empty(p_cur_srvc->included_svc))
continue;
for (list_node_t *isn = list_begin(p_cur_srvc->included_svc);
isn != list_end(p_cur_srvc->included_svc); isn = list_next(isn)) {
tBTA_GATTC_INCLUDED_SVC *p_isvc = list_node(isn);
if (p_isvc->handle < start_handle) {
continue;
}
if (p_isvc->handle > end_handle) {
*db = buffer;
*count = db_size;
return;
}
bta_gattc_fill_gatt_db_el(curr_db_attr,
BTGATT_DB_INCLUDED_SERVICE,
p_isvc->handle,
0 /* s_handle */,
0 /* e_handle */,
p_isvc->handle,
p_isvc->uuid,
0 /* property */);
curr_db_attr++;
}
}
*db = buffer;
*count = db_size;
}
/*******************************************************************************
**
** Function bta_gattc_get_gatt_db
**
** Description copy the server GATT database into db parameter.
**
** Parameters conn_id: connection ID which identify the server.
** db: output parameter which will contain GATT database copy.
** Caller is responsible for freeing it.
** count: number of elements in database.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_get_gatt_db(UINT16 conn_id, UINT16 start_handle, UINT16 end_handle, btgatt_db_element_t **db, int *count)
{
tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
if (p_clcb == NULL) {
APPL_TRACE_ERROR("Unknown conn ID: %d", conn_id);
return;
}
if (p_clcb->state != BTA_GATTC_CONN_ST) {
APPL_TRACE_ERROR("server cache not available, CLCB state = %d",
p_clcb->state);
return;
}
if (!p_clcb->p_srcb || p_clcb->p_srcb->p_srvc_list || /* no active discovery */
!p_clcb->p_srcb->p_srvc_cache) {
APPL_TRACE_ERROR("No server cache available");
return;
}
bta_gattc_get_gatt_db_impl(p_clcb->p_srcb, start_handle, end_handle, db, count);
}
/*******************************************************************************
**
** 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)
{
/* first attribute loading, initialize buffer */
APPL_TRACE_DEBUG("%s: bta_gattc_rebuild_cache, num_attr = %d", __func__, num_attr);
list_free(p_srvc_cb->p_srvc_cache);
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);
break;
case BTA_GATTC_ATTR_TYPE_CHAR:
//TODO(jpawlowski): store decl_handle properly.
bta_gattc_add_char_to_cache(p_srvc_cb,
p_attr->s_handle,
p_attr->s_handle,
&p_attr->uuid,
p_attr->prop);
break;
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->incl_srvc_handle,
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, tBT_UUID uuid, UINT8 prop, UINT16 incl_srvc_handle,
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 = 0;
p_attr->prop = prop;
p_attr->incl_srvc_handle = incl_srvc_handle;
memcpy(&p_attr->uuid, &uuid, sizeof(tBT_UUID));
}
/*******************************************************************************
**
** Function bta_gattc_cache_save
**
** Description save the server cache into NV
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_cache_save(tBTA_GATTC_SERV *p_srvc_cb, UINT16 conn_id)
{
if (!p_srvc_cb->p_srvc_cache || list_is_empty(p_srvc_cb->p_srvc_cache))
return;
int i = 0;
size_t db_size = bta_gattc_get_db_size(p_srvc_cb->p_srvc_cache, 0x0000, 0xFFFF);
tBTA_GATTC_NV_ATTR *nv_attr = osi_malloc(db_size * sizeof(tBTA_GATTC_NV_ATTR));
// This step is very importent, if not clear the memory, the hasy key base on the attribute case will be not corret.
if (nv_attr != NULL) {
memset(nv_attr, 0, db_size * sizeof(tBTA_GATTC_NV_ATTR));
}
if (!nv_attr) {
APPL_TRACE_WARNING("%s(), no resource.", __func__);
return;
}
for (list_node_t *sn = list_begin(p_srvc_cb->p_srvc_cache);
sn != list_end(p_srvc_cb->p_srvc_cache); sn = list_next(sn)) {
tBTA_GATTC_SERVICE *p_cur_srvc = list_node(sn);
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->uuid,
0 /* properties */,
0 /* incl_srvc_handle */,
p_cur_srvc->is_primary);
}
for (list_node_t *sn = list_begin(p_srvc_cb->p_srvc_cache);
sn != list_end(p_srvc_cb->p_srvc_cache); sn = list_next(sn)) {
tBTA_GATTC_SERVICE *p_cur_srvc = list_node(sn);
if (!p_cur_srvc->characteristics || list_is_empty(p_cur_srvc->characteristics))
continue;
for (list_node_t *cn = list_begin(p_cur_srvc->characteristics);
cn != list_end(p_cur_srvc->characteristics); cn = list_next(cn)) {
tBTA_GATTC_CHARACTERISTIC *p_char = list_node(cn);
bta_gattc_fill_nv_attr(&nv_attr[i++],
BTA_GATTC_ATTR_TYPE_CHAR,
p_char->handle,
0,
p_char->uuid,
p_char->properties,
0 /* incl_srvc_handle */,
FALSE);
if (!p_char->descriptors || list_is_empty(p_char->descriptors))
continue;
for (list_node_t *dn = list_begin(p_char->descriptors);
dn != list_end(p_char->descriptors); dn = list_next(dn)) {
tBTA_GATTC_DESCRIPTOR *p_desc = list_node(dn);
bta_gattc_fill_nv_attr(&nv_attr[i++],
BTA_GATTC_ATTR_TYPE_CHAR_DESCR,
p_desc->handle,
0,
p_desc->uuid,
0 /* properties */,
0 /* incl_srvc_handle */,
FALSE);
}
}
if (!p_cur_srvc->included_svc || list_is_empty(p_cur_srvc->included_svc))
continue;
for (list_node_t *an = list_begin(p_cur_srvc->included_svc);
an != list_end(p_cur_srvc->included_svc); an = list_next(an)) {
tBTA_GATTC_INCLUDED_SVC *p_isvc = list_node(an);
bta_gattc_fill_nv_attr(&nv_attr[i++],
BTA_GATTC_ATTR_TYPE_INCL_SRVC,
p_isvc->handle,
0,
p_isvc->uuid,
0 /* properties */,
p_isvc->included_service->s_handle,
FALSE);
}
}
/* TODO: Gattc cache write/read need to be added in IDF 3.1*/
bta_gattc_cache_write(p_srvc_cb->server_bda, db_size, nv_attr);
osi_free(nv_attr);
}
/*******************************************************************************
**
** Function bta_gattc_cache_load
**
** Description Load GATT cache from storage for server.
**
** Parameter p_clcb: pointer to server clcb, that will
** be filled from storage
** Returns true on success, false otherwise
**
*******************************************************************************/
bool bta_gattc_cache_load(tBTA_GATTC_CLCB *p_clcb)
{
/* open NV cache and send call in */
tBTA_GATT_STATUS status = BTA_GATT_OK;
UINT8 index = 0;
tBTA_GATTC_NV_ATTR *attr = NULL;
if ((status = bta_gattc_co_cache_open(p_clcb->p_srcb->server_bda, true, &index)) != BTA_GATT_OK) {
APPL_TRACE_DEBUG("%s(), gattc cache open fail, index = %x", __func__, index);
return false;
}
size_t num_attr = bta_gattc_get_cache_attr_length(index) / sizeof(tBTA_GATTC_NV_ATTR);
if (!num_attr) {
return false;
}
//don't forget to set the total attribute number.
p_clcb->p_srcb->total_attr = num_attr;
APPL_TRACE_DEBUG("%s(), index = %x, num_attr = %d", __func__, index, num_attr);
if ((attr = osi_malloc(sizeof(tBTA_GATTC_NV_ATTR) * num_attr)) == NULL) {
APPL_TRACE_ERROR("%s, No Memory.", __func__);
return false;
}
if ((status = bta_gattc_co_cache_load(attr, index)) != BTA_GATT_OK) {
APPL_TRACE_DEBUG("%s(), gattc cache load fail, status = %x", __func__, status);
return false;
}
bta_gattc_rebuild_cache(p_clcb->p_srcb, num_attr, attr);
//free the attr buffer after used.
osi_free(attr);
return true;
}
/*******************************************************************************
**
** Function bta_gattc_cache_write
**
** Description This callout function is executed by GATT when a server cache
** is available to save.
**
** Parameter server_bda: server bd address of this cache belongs to
** num_attr: number of attribute to be save.
** attr: pointer to the list of attributes to save.
** Returns
**
*******************************************************************************/
static void bta_gattc_cache_write(BD_ADDR server_bda, UINT16 num_attr,
tBTA_GATTC_NV_ATTR *attr)
{
bta_gattc_co_cache_save(server_bda, num_attr, attr);
}
/*******************************************************************************
**
** Function bta_gattc_cache_reset
**
** Description This callout function is executed by GATTC to reset cache in
** application
**
** Parameter server_bda: server bd address of this cache belongs to
**
** Returns void.
**
*******************************************************************************/
void bta_gattc_cache_reset(BD_ADDR server_bda)
{
BTIF_TRACE_DEBUG("%s", __func__);
char fname[255] = {0};
bta_gattc_generate_cache_file_name(fname, server_bda);
bta_gattc_co_cache_reset(server_bda);
//unlink(fname);
}
#endif /* BTA_GATT_INCLUDED */
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