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7e488b0c6b
esp-idf/components/bt/bluedroid/bta/gatt/bta_gattc_act.c
Yulong 7e488b0c6b component/bt: Optimized broadcast callback function, send the callback function to the application after the controller confirms receipt of the broadcast start. 
1. optimiz the ble stop adv callback function.
2. added the osi_mutex_unlock in the bta_gattc_wait4_service_change_ccc_cback function when the p_timer_param == NULL ||  p_conn == NULL.
2017-12-15 18:17:02 +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 action functions for the state
* machine.
*
******************************************************************************/
#define LOG_TAG "bt_bta_gattc"
#include "bt_target.h"
#include "utl.h"
#include "bta_sys.h"
#include "bta_gattc_int.h"
#include "l2c_api.h"
#include "l2c_int.h"
#include "gatt_int.h"
#include "allocator.h"
#include "mutex.h"
#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
#include "bta_hh_int.h"
#endif
// #include "btif/include/btif_debug_conn.h"
#include <string.h>
// #include "osi/include/log.h"
#if GATTC_INCLUDED == TRUE && BLE_INCLUDED == TRUE
static osi_mutex_t write_ccc_mutex;
/*****************************************************************************
** Constants
*****************************************************************************/
static void bta_gattc_conn_cback(tGATT_IF gattc_if, BD_ADDR bda, UINT16 conn_id,
BOOLEAN connected, tGATT_DISCONN_REASON reason,
tBT_TRANSPORT transport);
static void bta_gattc_cmpl_cback(UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status,
tGATT_CL_COMPLETE *p_data);
static void bta_gattc_cmpl_sendmsg(UINT16 conn_id, tGATTC_OPTYPE op,
tBTA_GATT_STATUS status,
tGATT_CL_COMPLETE *p_data);
static void bta_gattc_pop_command_to_send(tBTA_GATTC_CLCB *p_clcb);
static void bta_gattc_deregister_cmpl(tBTA_GATTC_RCB *p_clreg);
static void bta_gattc_enc_cmpl_cback(tGATT_IF gattc_if, BD_ADDR bda);
static void bta_gattc_cong_cback (UINT16 conn_id, BOOLEAN congested);
static tBTA_GATTC_FIND_SERVICE_CB bta_gattc_register_service_change_notify(UINT16 conn_id, BD_ADDR remote_bda, BOOLEAN *need_timer);
static void bta_gattc_wait4_service_change_ccc_cback (TIMER_LIST_ENT *p_tle);
static void bta_gattc_start_service_change_ccc_timer(UINT16 conn_id, BD_ADDR bda,UINT32 timeout_ms,
UINT8 timer_cnt, UINT8 last_status, TIMER_LIST_ENT *ccc_timer);
static tGATT_CBACK bta_gattc_cl_cback = {
bta_gattc_conn_cback,
bta_gattc_cmpl_cback,
bta_gattc_disc_res_cback,
bta_gattc_disc_cmpl_cback,
NULL,
bta_gattc_enc_cmpl_cback,
bta_gattc_cong_cback
};
/* opcode(tGATTC_OPTYPE) order has to be comply with internal event order */
static UINT16 bta_gattc_opcode_to_int_evt[] = {
BTA_GATTC_API_READ_EVT,
BTA_GATTC_API_WRITE_EVT,
BTA_GATTC_API_EXEC_EVT,
BTA_GATTC_API_CFG_MTU_EVT,
BTA_GATTC_API_READ_MULTI_EVT
};
#if (BT_TRACE_VERBOSE == TRUE)
static const char *bta_gattc_op_code_name[] = {
"Unknown",
"Discovery",
"Read",
"Write",
"Exec",
"Config",
"Notification",
"Indication"
};
#endif
/*****************************************************************************
** Action Functions
*****************************************************************************/
void bta_gattc_reset_discover_st(tBTA_GATTC_SERV *p_srcb, tBTA_GATT_STATUS status);
/*******************************************************************************
**
** Function bta_gattc_enable
**
** Description Enables GATTC module
**
**
** Returns void
**
*******************************************************************************/
static void bta_gattc_enable(tBTA_GATTC_CB *p_cb)
{
APPL_TRACE_DEBUG("bta_gattc_enable");
if (p_cb->state == BTA_GATTC_STATE_DISABLED) {
/* initialize control block */
memset(&bta_gattc_cb, 0, sizeof(tBTA_GATTC_CB));
p_cb->state = BTA_GATTC_STATE_ENABLED;
// Create a write ccc mutex when the gatt client enable
osi_mutex_new(&write_ccc_mutex);
} else {
APPL_TRACE_DEBUG("GATTC is arelady enabled");
}
}
/*******************************************************************************
**
** Function bta_gattc_disable
**
** Description Disable GATTC module by cleaning up all active connections
** and deregister all application.
**
** Returns void
**
*******************************************************************************/
void bta_gattc_disable(tBTA_GATTC_CB *p_cb)
{
UINT8 i;
APPL_TRACE_DEBUG("bta_gattc_disable");
if (p_cb->state != BTA_GATTC_STATE_ENABLED) {
APPL_TRACE_ERROR("not enabled or disable in pogress");
return;
}
// Free the write ccc mutex when the gatt client disable
osi_mutex_free(&write_ccc_mutex);
for (i = 0; i < BTA_GATTC_CL_MAX; i ++) {
if (p_cb->cl_rcb[i].in_use) {
p_cb->state = BTA_GATTC_STATE_DISABLING;
/* don't deregister HH GATT IF */
/* HH GATT IF will be deregistered by bta_hh_le_deregister when disable HH */
#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
if (!bta_hh_le_is_hh_gatt_if(p_cb->cl_rcb[i].client_if)) {
#endif
bta_gattc_deregister(p_cb, &p_cb->cl_rcb[i]);
#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
}
#endif
}
}
/* no registered apps, indicate disable completed */
if (p_cb->state != BTA_GATTC_STATE_DISABLING) {
p_cb->state = BTA_GATTC_STATE_DISABLED;
memset(p_cb, 0, sizeof(tBTA_GATTC_CB));
}
}
/*******************************************************************************
**
** Function bta_gattc_register
**
** Description Register a GATT client application with BTA.
**
** Returns void
**
*******************************************************************************/
void bta_gattc_register(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATTC cb_data;
UINT8 i;
tBT_UUID *p_app_uuid = &p_data->api_reg.app_uuid;
tBTA_GATTC_INT_START_IF *p_buf;
tBTA_GATT_STATUS status = BTA_GATT_NO_RESOURCES;
APPL_TRACE_DEBUG("bta_gattc_register state %d\n", p_cb->state);
memset(&cb_data, 0, sizeof(cb_data));
cb_data.reg_oper.status = BTA_GATT_NO_RESOURCES;
/* check if GATTC module is already enabled . Else enable */
if (p_cb->state == BTA_GATTC_STATE_DISABLED) {
bta_gattc_enable (p_cb);
}
/* todo need to check duplicate uuid */
for (i = 0; i < BTA_GATTC_CL_MAX; i ++) {
if (!p_cb->cl_rcb[i].in_use) {
if ((p_app_uuid == NULL) || (p_cb->cl_rcb[i].client_if = GATT_Register(p_app_uuid, &bta_gattc_cl_cback)) == 0) {
APPL_TRACE_ERROR("Register with GATT stack failed.\n");
status = BTA_GATT_ERROR;
} else {
p_cb->cl_rcb[i].in_use = TRUE;
p_cb->cl_rcb[i].p_cback = p_data->api_reg.p_cback;
memcpy(&p_cb->cl_rcb[i].app_uuid, p_app_uuid, sizeof(tBT_UUID));
/* BTA use the same client interface as BTE GATT statck */
cb_data.reg_oper.client_if = p_cb->cl_rcb[i].client_if;
if ((p_buf = (tBTA_GATTC_INT_START_IF *) osi_malloc(sizeof(tBTA_GATTC_INT_START_IF))) != NULL) {
p_buf->hdr.event = BTA_GATTC_INT_START_IF_EVT;
p_buf->client_if = p_cb->cl_rcb[i].client_if;
APPL_TRACE_DEBUG("GATTC getbuf sucess.\n");
bta_sys_sendmsg(p_buf);
status = BTA_GATT_OK;
} else {
GATT_Deregister(p_cb->cl_rcb[i].client_if);
status = BTA_GATT_NO_RESOURCES;
memset( &p_cb->cl_rcb[i], 0 , sizeof(tBTA_GATTC_RCB));
}
break;
}
}
}
/* callback with register event */
if (p_data->api_reg.p_cback) {
if (p_app_uuid != NULL) {
memcpy(&(cb_data.reg_oper.app_uuid), p_app_uuid, sizeof(tBT_UUID));
}
cb_data.reg_oper.status = status;
(*p_data->api_reg.p_cback)(BTA_GATTC_REG_EVT, (tBTA_GATTC *)&cb_data);
}
}
/*******************************************************************************
**
** Function bta_gattc_start_if
**
** Description start an application interface.
**
** Returns none.
**
*******************************************************************************/
void bta_gattc_start_if(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg)
{
UNUSED(p_cb);
if (bta_gattc_cl_get_regcb(p_msg->int_start_if.client_if) != NULL ) {
GATT_StartIf(p_msg->int_start_if.client_if);
} else {
APPL_TRACE_ERROR("Unable to start app.: Unknown interface =%d", p_msg->int_start_if.client_if );
}
}
/*******************************************************************************
**
** Function bta_gattc_deregister
**
** Description De-Register a GATT client application with BTA.
**
** Returns void
**
*******************************************************************************/
void bta_gattc_deregister(tBTA_GATTC_CB *p_cb, tBTA_GATTC_RCB *p_clreg)
{
UINT8 i;
BT_HDR buf;
if (p_clreg != NULL) {
/* remove bg connection associated with this rcb */
for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++) {
if (p_cb->bg_track[i].in_use) {
if (p_cb->bg_track[i].cif_mask & (1 << (p_clreg->client_if - 1))) {
bta_gattc_mark_bg_conn(p_clreg->client_if, p_cb->bg_track[i].remote_bda, FALSE, FALSE);
GATT_CancelConnect(p_clreg->client_if, p_cb->bg_track[i].remote_bda, FALSE);
}
if (p_cb->bg_track[i].cif_adv_mask & (1 << (p_clreg->client_if - 1))) {
bta_gattc_mark_bg_conn(p_clreg->client_if, p_cb->bg_track[i].remote_bda, FALSE, TRUE);
}
}
}
if (p_clreg->num_clcb > 0) {
/* close all CLCB related to this app */
for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++) {
if (p_cb->clcb[i].in_use && (p_cb->clcb[i].p_rcb == p_clreg)) {
p_clreg->dereg_pending = TRUE;
buf.event = BTA_GATTC_API_CLOSE_EVT;
buf.layer_specific = p_cb->clcb[i].bta_conn_id;
bta_gattc_close(&p_cb->clcb[i], (tBTA_GATTC_DATA *)&buf) ;
}
}
} else {
bta_gattc_deregister_cmpl(p_clreg);
}
} else {
APPL_TRACE_ERROR("bta_gattc_deregister Deregister Failedm unknown client cif");
}
}
/*******************************************************************************
**
** Function bta_gattc_process_api_open
**
** Description process connect API request.
**
** Returns void
**
*******************************************************************************/
void bta_gattc_process_api_open (tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg)
{
UINT16 event = ((BT_HDR *)p_msg)->event;
tBTA_GATTC_CLCB *p_clcb = NULL;
tBTA_GATTC_RCB *p_clreg = bta_gattc_cl_get_regcb(p_msg->api_conn.client_if);
UNUSED(p_cb);
if (p_clreg != NULL) {
if (p_msg->api_conn.is_direct) {
if ((p_clcb = bta_gattc_find_alloc_clcb(p_msg->api_conn.client_if,
p_msg->api_conn.remote_bda,
p_msg->api_conn.transport)) != NULL) {
bta_gattc_sm_execute(p_clcb, event, p_msg);
} else {
APPL_TRACE_ERROR("No resources to open a new connection.");
bta_gattc_send_open_cback(p_clreg,
BTA_GATT_NO_RESOURCES,
p_msg->api_conn.remote_bda,
BTA_GATT_INVALID_CONN_ID,
p_msg->api_conn.transport, 0);
}
} else {
bta_gattc_init_bk_conn(&p_msg->api_conn, p_clreg);
}
} else {
APPL_TRACE_ERROR("bta_gattc_process_api_open Failed, unknown client_if: %d",
p_msg->api_conn.client_if);
}
}
/*******************************************************************************
**
** Function bta_gattc_process_api_open_cancel
**
** Description process connect API request.
**
** Returns void
**
*******************************************************************************/
void bta_gattc_process_api_open_cancel (tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg)
{
UINT16 event = ((BT_HDR *)p_msg)->event;
tBTA_GATTC_CLCB *p_clcb = NULL;
tBTA_GATTC_RCB *p_clreg;
tBTA_GATTC cb_data;
UNUSED(p_cb);
if (p_msg->api_cancel_conn.is_direct) {
if ((p_clcb = bta_gattc_find_clcb_by_cif(p_msg->api_cancel_conn.client_if,
p_msg->api_cancel_conn.remote_bda,
BTA_GATT_TRANSPORT_LE)) != NULL) {
bta_gattc_sm_execute(p_clcb, event, p_msg);
} else {
APPL_TRACE_ERROR("No such connection need to be cancelled");
p_clreg = bta_gattc_cl_get_regcb(p_msg->api_cancel_conn.client_if);
if (p_clreg && p_clreg->p_cback) {
cb_data.status = BTA_GATT_ERROR;
(*p_clreg->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data);
}
}
} else {
bta_gattc_cancel_bk_conn(&p_msg->api_cancel_conn);
}
}
/*******************************************************************************
**
** Function bta_gattc_process_enc_cmpl
**
** Description process encryption complete message.
**
** Returns void
**
*******************************************************************************/
void bta_gattc_process_enc_cmpl(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg)
{
tBTA_GATTC_RCB *p_clreg;
tBTA_GATTC cb_data;
UNUSED(p_cb);
p_clreg = bta_gattc_cl_get_regcb(p_msg->enc_cmpl.client_if);
if (p_clreg && p_clreg->p_cback) {
memset(&cb_data, 0, sizeof(tBTA_GATTC));
cb_data.enc_cmpl.client_if = p_msg->enc_cmpl.client_if;
bdcpy(cb_data.enc_cmpl.remote_bda, p_msg->enc_cmpl.remote_bda);
(*p_clreg->p_cback)(BTA_GATTC_ENC_CMPL_CB_EVT, &cb_data);
}
}
/*******************************************************************************
**
** Function bta_gattc_cancel_open_error
**
** Description
**
** Returns void
**
*******************************************************************************/
void bta_gattc_cancel_open_error(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATTC cb_data;
UNUSED(p_data);
cb_data.status = BTA_GATT_ERROR;
if ( p_clcb && p_clcb->p_rcb && p_clcb->p_rcb->p_cback ) {
(*p_clcb->p_rcb->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data);
}
}
/*******************************************************************************
**
** Function bta_gattc_open_error
**
** Description
**
** Returns void
**
*******************************************************************************/
void bta_gattc_open_error(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
UNUSED(p_data);
APPL_TRACE_ERROR("Connection already opened. wrong state");
bta_gattc_send_open_cback(p_clcb->p_rcb,
BTA_GATT_OK,
p_clcb->bda,
p_clcb->bta_conn_id,
p_clcb->transport,
0);
}
/*******************************************************************************
**
** Function bta_gattc_open_fail
**
** Description
**
** Returns void
**
*******************************************************************************/
void bta_gattc_open_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
UNUSED(p_data);
bta_gattc_send_open_cback(p_clcb->p_rcb,
BTA_GATT_ERROR,
p_clcb->bda,
p_clcb->bta_conn_id,
p_clcb->transport,
0);
/* open failure, remove clcb */
bta_gattc_clcb_dealloc(p_clcb);
}
/*******************************************************************************
**
** Function bta_gattc_open
**
** Description Process API connection function.
**
** Returns void
**
*******************************************************************************/
void bta_gattc_open(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATTC_DATA gattc_data;
/* open/hold a connection */
if (!GATT_Connect(p_clcb->p_rcb->client_if, p_data->api_conn.remote_bda,
TRUE, p_data->api_conn.transport)) {
APPL_TRACE_ERROR("Connection open failure");
bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_OPEN_FAIL_EVT, p_data);
} else {
/* a connected remote device */
if (GATT_GetConnIdIfConnected(p_clcb->p_rcb->client_if,
p_data->api_conn.remote_bda,
&p_clcb->bta_conn_id,
p_data->api_conn.transport)) {
gattc_data.int_conn.hdr.layer_specific = p_clcb->bta_conn_id;
bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_CONN_EVT, &gattc_data);
}
/* else wait for the callback event */
}
}
/*******************************************************************************
**
** Function bta_gattc_init_bk_conn
**
** Description Process API Open for a background connection
**
** Returns void
**
*******************************************************************************/
void bta_gattc_init_bk_conn(tBTA_GATTC_API_OPEN *p_data, tBTA_GATTC_RCB *p_clreg)
{
tBTA_GATT_STATUS status = BTA_GATT_NO_RESOURCES;
UINT16 conn_id;
tBTA_GATTC_CLCB *p_clcb;
tBTA_GATTC_DATA gattc_data;
if (bta_gattc_mark_bg_conn(p_data->client_if, p_data->remote_bda, TRUE, FALSE)) {
/* always call open to hold a connection */
if (!GATT_Connect(p_data->client_if, p_data->remote_bda, FALSE, p_data->transport)) {
uint8_t *bda = (uint8_t *)p_data->remote_bda;
status = BTA_GATT_ERROR;
APPL_TRACE_ERROR("%s unable to connect to remote bd_addr:%02x:%02x:%02x:%02x:%02x:%02x",
__func__, bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
} else {
status = BTA_GATT_OK;
/* if is a connected remote device */
if (GATT_GetConnIdIfConnected(p_data->client_if,
p_data->remote_bda,
&conn_id,
p_data->transport)) {
if ((p_clcb = bta_gattc_find_alloc_clcb(p_data->client_if, p_data->remote_bda,
BTA_GATT_TRANSPORT_LE)) != NULL) {
gattc_data.hdr.layer_specific = p_clcb->bta_conn_id = conn_id;
/* open connection */
bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_CONN_EVT, &gattc_data);
status = BTA_GATT_OK;
}
}
}
}
/* open failure, report OPEN_EVT */
if (status != BTA_GATT_OK) {
bta_gattc_send_open_cback(p_clreg, status, p_data->remote_bda,
BTA_GATT_INVALID_CONN_ID, BTA_GATT_TRANSPORT_LE, 0);
}
}
/*******************************************************************************
**
** Function bta_gattc_cancel_bk_conn
**
** Description Process API Cancel Open for a background connection
**
** Returns void
**
*******************************************************************************/
void bta_gattc_cancel_bk_conn(tBTA_GATTC_API_CANCEL_OPEN *p_data)
{
tBTA_GATTC_RCB *p_clreg;
tBTA_GATTC cb_data;
cb_data.status = BTA_GATT_ERROR;
/* remove the device from the bg connection mask */
if (bta_gattc_mark_bg_conn(p_data->client_if, p_data->remote_bda, FALSE, FALSE)) {
if (GATT_CancelConnect(p_data->client_if, p_data->remote_bda, FALSE)) {
cb_data.status = BTA_GATT_OK;
} else {
APPL_TRACE_ERROR("bta_gattc_cancel_bk_conn failed");
}
}
p_clreg = bta_gattc_cl_get_regcb(p_data->client_if);
if (p_clreg && p_clreg->p_cback) {
(*p_clreg->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data);
}
}
/*******************************************************************************
**
** Function bta_gattc_int_cancel_open_ok
**
** Description
**
** Returns void
**
*******************************************************************************/
void bta_gattc_cancel_open_ok(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATTC cb_data;
UNUSED(p_data);
if ( p_clcb->p_rcb->p_cback ) {
cb_data.status = BTA_GATT_OK;
(*p_clcb->p_rcb->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data);
}
bta_gattc_clcb_dealloc(p_clcb);
}
/*******************************************************************************
**
** Function bta_gattc_cancel_open
**
** Description
**
** Returns void
**
*******************************************************************************/
void bta_gattc_cancel_open(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATTC cb_data;
if (GATT_CancelConnect(p_clcb->p_rcb->client_if, p_data->api_cancel_conn.remote_bda, TRUE)) {
bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_CANCEL_OPEN_OK_EVT, p_data);
} else {
if ( p_clcb->p_rcb->p_cback ) {
cb_data.status = BTA_GATT_ERROR;
(*p_clcb->p_rcb->p_cback)(BTA_GATTC_CANCEL_OPEN_EVT, &cb_data);
}
}
}
/*******************************************************************************
**
** Function bta_gattc_conn
**
** Description receive connection callback from stack
**
** Returns void
**
*******************************************************************************/
void bta_gattc_conn(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATTC_IF gatt_if;
APPL_TRACE_DEBUG("bta_gattc_conn server cache state=%d", p_clcb->p_srcb->state);
if (p_data != NULL) {
APPL_TRACE_DEBUG("bta_gattc_conn conn_id=%d", p_data->hdr.layer_specific);
p_clcb->bta_conn_id = p_data->int_conn.hdr.layer_specific;
GATT_GetConnectionInfor(p_data->hdr.layer_specific,
&gatt_if, p_clcb->bda, &p_clcb->transport);
}
p_clcb->p_srcb->connected = TRUE;
if (p_clcb->p_srcb->mtu == 0) {
p_clcb->p_srcb->mtu = GATT_DEF_BLE_MTU_SIZE;
}
/* start database cache if needed */
if (p_clcb->p_srcb->p_srvc_cache == NULL ||
p_clcb->p_srcb->state != BTA_GATTC_SERV_IDLE) {
if (p_clcb->p_srcb->state == BTA_GATTC_SERV_IDLE) {
p_clcb->p_srcb->state = BTA_GATTC_SERV_LOAD;
if (bta_gattc_cache_load(p_clcb)) {
p_clcb->p_srcb->state = BTA_GATTC_SERV_IDLE;
bta_gattc_reset_discover_st(p_clcb->p_srcb, BTA_GATT_OK);
} else { /* cache is building */
p_clcb->p_srcb->state = BTA_GATTC_SERV_DISC;
/* cache load failure, start discovery */
bta_gattc_start_discover(p_clcb, NULL);
}
} else { /* cache is building */
p_clcb->state = BTA_GATTC_DISCOVER_ST;
}
} else {
/* a pending service handle change indication */
if (p_clcb->p_srcb->srvc_hdl_chg) {
p_clcb->p_srcb->srvc_hdl_chg = FALSE;
/* start discovery */
bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL);
}
}
if (p_clcb->p_rcb) {
/* there is no RM for GATT */
if (p_clcb->transport == BTA_TRANSPORT_BR_EDR) {
bta_sys_conn_open(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda);
}
bta_gattc_send_open_cback(p_clcb->p_rcb,
BTA_GATT_OK,
p_clcb->bda,
p_clcb->bta_conn_id,
p_clcb->transport,
p_clcb->p_srcb->mtu);
}
}
/*******************************************************************************
**
** Function bta_gattc_conncback
**
** Description receive connection callback from stack
**
** Returns void
**
*******************************************************************************/
void bta_gattc_conncback(tBTA_GATTC_RCB *p_rcb, tBTA_GATTC_DATA *p_data)
{
if (p_rcb) {
bta_gattc_send_connect_cback(p_rcb,
p_data->int_conn.remote_bda,
p_data->int_conn.hdr.layer_specific);
}
}
/*******************************************************************************
**
** Function bta_gattc_disconncback
**
** Description receive disconnection callback from stack
**
** Returns void
**
*******************************************************************************/
void bta_gattc_disconncback(tBTA_GATTC_RCB *p_rcb, tBTA_GATTC_DATA *p_data)
{
if (p_rcb) {
bta_gattc_send_disconnect_cback(p_rcb,
p_data->int_conn.reason,
p_data->int_conn.remote_bda,
p_data->int_conn.hdr.layer_specific);
}
}
/*******************************************************************************
**
** Function bta_gattc_close_fail
**
** Description close a connection.
**
** Returns void
**
*******************************************************************************/
void bta_gattc_close_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATTC cb_data;
if ( p_clcb->p_rcb->p_cback ) {
memset(&cb_data, 0, sizeof(tBTA_GATTC));
cb_data.close.client_if = p_clcb->p_rcb->client_if;
cb_data.close.conn_id = p_data->hdr.layer_specific;
bdcpy(cb_data.close.remote_bda, p_clcb->bda);
cb_data.close.status = BTA_GATT_ERROR;
cb_data.close.reason = BTA_GATT_CONN_NONE;
(*p_clcb->p_rcb->p_cback)(BTA_GATTC_CLOSE_EVT, &cb_data);
}
}
/*******************************************************************************
**
** Function bta_gattc_api_close
**
** Description close a GATTC connection.
**
** Returns void
**
*******************************************************************************/
void bta_gattc_close(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATTC_CBACK *p_cback = p_clcb->p_rcb->p_cback;
tBTA_GATTC_RCB *p_clreg = p_clcb->p_rcb;
tBTA_GATTC cb_data;
APPL_TRACE_DEBUG("bta_gattc_close conn_id=%d", p_clcb->bta_conn_id);
cb_data.close.client_if = p_clcb->p_rcb->client_if;
cb_data.close.conn_id = p_clcb->bta_conn_id;
cb_data.close.reason = p_clcb->reason;
cb_data.close.status = p_clcb->status;
bdcpy(cb_data.close.remote_bda, p_clcb->bda);
if (p_clcb->transport == BTA_TRANSPORT_BR_EDR) {
bta_sys_conn_close( BTA_ID_GATTC , BTA_ALL_APP_ID, p_clcb->bda);
}
bta_gattc_clcb_dealloc(p_clcb);
if (p_data->hdr.event == BTA_GATTC_API_CLOSE_EVT) {
cb_data.close.status = GATT_Disconnect(p_data->hdr.layer_specific);
} else if (p_data->hdr.event == BTA_GATTC_INT_DISCONN_EVT) {
cb_data.close.status = BTA_GATT_OK;
cb_data.close.reason = p_data->int_conn.reason;
}
if (p_cback) {
(* p_cback)(BTA_GATTC_CLOSE_EVT, (tBTA_GATTC *)&cb_data);
}
if (p_clreg->num_clcb == 0 && p_clreg->dereg_pending) {
bta_gattc_deregister_cmpl(p_clreg);
}
}
/*******************************************************************************
**
** Function bta_gattc_reset_discover_st
**
** Description when a SRCB finished discovery, tell all related clcb.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_reset_discover_st(tBTA_GATTC_SERV *p_srcb, tBTA_GATT_STATUS status)
{
tBTA_GATTC_CB *p_cb = &bta_gattc_cb;
UINT8 i;
for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++) {
if (p_cb->clcb[i].p_srcb == p_srcb) {
p_cb->clcb[i].status = status;
bta_gattc_sm_execute(&p_cb->clcb[i], BTA_GATTC_DISCOVER_CMPL_EVT, NULL);
}
}
}
/*******************************************************************************
**
** Function bta_gattc_disc_close
**
** Description close a GATTC connection while in discovery state.
**
** Returns void
**
*******************************************************************************/
void bta_gattc_disc_close(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
APPL_TRACE_DEBUG("%s: Discovery cancel conn_id=%d", __func__,
p_clcb->bta_conn_id);
if (p_clcb->disc_active) {
bta_gattc_reset_discover_st(p_clcb->p_srcb, BTA_GATT_ERROR);
} else {
p_clcb->state = BTA_GATTC_CONN_ST;
}
// This function only gets called as the result of a BTA_GATTC_API_CLOSE_EVT
// while in the BTA_GATTC_DISCOVER_ST state. Once the state changes, the
// connection itself still needs to be closed to resolve the original event.
if (p_clcb->state == BTA_GATTC_CONN_ST) {
APPL_TRACE_DEBUG("State is back to BTA_GATTC_CONN_ST. "
"Trigger connection close");
bta_gattc_close(p_clcb, p_data);
}
}
/*******************************************************************************
**
** Function bta_gattc_set_discover_st
**
** Description when a SRCB start discovery, tell all related clcb and set
** the state.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_set_discover_st(tBTA_GATTC_SERV *p_srcb)
{
tBTA_GATTC_CB *p_cb = &bta_gattc_cb;
UINT8 i;
for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++) {
if (p_cb->clcb[i].p_srcb == p_srcb) {
p_cb->clcb[i].status = BTA_GATT_OK;
p_cb->clcb[i].state = BTA_GATTC_DISCOVER_ST;
}
}
}
/*******************************************************************************
**
** Function bta_gattc_restart_discover
**
** Description process service change in discovery state, mark up the auto
** update flag and set status to be discovery cancel for current
** discovery.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_restart_discover(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
UNUSED(p_data);
p_clcb->status = BTA_GATT_CANCEL;
p_clcb->auto_update = BTA_GATTC_DISC_WAITING;
}
/*******************************************************************************
**
** Function bta_gattc_cfg_mtu
**
** Description Configure MTU size on the GATT connection.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_cfg_mtu(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATT_STATUS status;
if (bta_gattc_enqueue(p_clcb, p_data)) {
status = GATTC_ConfigureMTU (p_clcb->bta_conn_id);
/* if failed, return callback here */
if (status != GATT_SUCCESS && status != GATT_CMD_STARTED) {
/* Dequeue the data, if it was enqueued */
if (p_clcb->p_q_cmd == p_data) {
p_clcb->p_q_cmd = NULL;
bta_gattc_pop_command_to_send(p_clcb);
}
bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_CONFIG, status, NULL);
}
}
}
/*******************************************************************************
**
** Function bta_gattc_start_discover
**
** Description Start a discovery send to server.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_start_discover(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
UNUSED(p_data);
APPL_TRACE_DEBUG("bta_gattc_start_discover conn_id=%d p_clcb->p_srcb->state = %d ",
p_clcb->bta_conn_id, p_clcb->p_srcb->state);
if (((p_clcb->p_q_cmd == NULL || p_clcb->auto_update == BTA_GATTC_REQ_WAITING) &&
p_clcb->p_srcb->state == BTA_GATTC_SERV_IDLE) ||
p_clcb->p_srcb->state == BTA_GATTC_SERV_DISC) {
/* no pending operation, start discovery right away */
p_clcb->auto_update = BTA_GATTC_NO_SCHEDULE;
if (p_clcb->p_srcb != NULL) {
/* clear the service change mask */
p_clcb->p_srcb->srvc_hdl_chg = FALSE;
p_clcb->p_srcb->update_count = 0;
p_clcb->p_srcb->state = BTA_GATTC_SERV_DISC_ACT;
if (p_clcb->transport == BTA_TRANSPORT_LE) {
L2CA_EnableUpdateBleConnParams(p_clcb->p_srcb->server_bda, FALSE);
}
/* set all srcb related clcb into discovery ST */
bta_gattc_set_discover_st(p_clcb->p_srcb);
if ((p_clcb->status = bta_gattc_init_cache(p_clcb->p_srcb)) == BTA_GATT_OK) {
p_clcb->status = bta_gattc_discover_pri_service(p_clcb->bta_conn_id,
p_clcb->p_srcb, GATT_DISC_SRVC_ALL);
}
if (p_clcb->status != BTA_GATT_OK) {
APPL_TRACE_ERROR("discovery on server failed");
bta_gattc_reset_discover_st(p_clcb->p_srcb, p_clcb->status);
} else {
p_clcb->disc_active = TRUE;
}
} else {
APPL_TRACE_ERROR("unknown device, can not start discovery");
}
}
/* pending operation, wait until it finishes */
else {
p_clcb->auto_update = BTA_GATTC_DISC_WAITING;
if (p_clcb->p_srcb->state == BTA_GATTC_SERV_IDLE) {
p_clcb->state = BTA_GATTC_CONN_ST; /* set clcb state */
}
}
}
/*******************************************************************************
**
** Function bta_gattc_disc_cmpl
**
** Description discovery on server is finished
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_disc_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATTC_DATA *p_q_cmd = p_clcb->p_q_cmd;
UNUSED(p_data);
APPL_TRACE_DEBUG("bta_gattc_disc_cmpl conn_id=%d, status = %d", p_clcb->bta_conn_id, p_clcb->status);
p_clcb->p_srcb->state = BTA_GATTC_SERV_IDLE;
p_clcb->disc_active = FALSE;
if (p_clcb->status != GATT_SUCCESS) {
/* clean up cache */
if (p_clcb->p_srcb && p_clcb->p_srcb->p_srvc_cache) {
list_free(p_clcb->p_srcb->p_srvc_cache);
p_clcb->p_srcb->p_srvc_cache = NULL;
}
/* used to reset cache in application */
bta_gattc_cache_reset(p_clcb->p_srcb->server_bda);
}
if (p_clcb->p_srcb && p_clcb->p_srcb->p_srvc_list) {
/* release pending attribute list buffer */
osi_free(p_clcb->p_srcb->p_srvc_list);
p_clcb->p_srcb->p_srvc_list = NULL;
//osi_free_and_reset((void **)&p_clcb->p_srcb->p_srvc_list);
}
if (p_clcb->auto_update == BTA_GATTC_DISC_WAITING) {
/* start discovery again */
bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL);
}
/* get any queued command to proceed */
else if (p_q_cmd != NULL) {
p_clcb->p_q_cmd = NULL;
/* execute pending operation of link block still present */
if (l2cu_find_lcb_by_bd_addr(p_clcb->p_srcb->server_bda, BT_TRANSPORT_LE) != NULL) {
bta_gattc_sm_execute(p_clcb, p_q_cmd->hdr.event, p_q_cmd);
}
/* if the command executed requeued the cmd, we don't
* want to free the underlying buffer that's being
* referenced by p_clcb->p_q_cmd
*/
if (p_q_cmd != p_clcb->p_q_cmd) {
osi_free(p_q_cmd);
p_q_cmd = NULL;
}
}
}
/*******************************************************************************
**
** Function bta_gattc_read
**
** Description Read an attribute
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_read(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
if (!bta_gattc_enqueue(p_clcb, p_data))
return;
tGATT_READ_PARAM read_param;
memset (&read_param, 0 ,sizeof(tGATT_READ_PARAM));
read_param.by_handle.handle = p_data->api_read.handle;
read_param.by_handle.auth_req = p_data->api_read.auth_req;
tBTA_GATT_STATUS status = GATTC_Read(p_clcb->bta_conn_id, GATT_READ_BY_HANDLE, &read_param);
/* read fail */
if (status != BTA_GATT_OK) {
/* Dequeue the data, if it was enqueued */
if (p_clcb->p_q_cmd == p_data) {
p_clcb->p_q_cmd = NULL;
bta_gattc_pop_command_to_send(p_clcb);
}
bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_READ, status, NULL);
}
}
/*******************************************************************************
**
** Function bta_gattc_read_multi
**
** Description read multiple
**
** Returns None.
*********************************************************************************/
void bta_gattc_read_multi(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATT_STATUS status = BTA_GATT_OK;
tGATT_READ_PARAM read_param;
if (bta_gattc_enqueue(p_clcb, p_data)) {
memset(&read_param, 0, sizeof(tGATT_READ_PARAM));
if (status == BTA_GATT_OK) {
read_param.read_multiple.num_handles = p_data->api_read_multi.num_attr;
read_param.read_multiple.auth_req = p_data->api_read_multi.auth_req;
memcpy(&read_param.read_multiple.handles, p_data->api_read_multi.handles,
sizeof(UINT16) * p_data->api_read_multi.num_attr);
status = GATTC_Read(p_clcb->bta_conn_id, GATT_READ_MULTIPLE, &read_param);
}
/* read fail */
if (status != BTA_GATT_OK) {
/* Dequeue the data, if it was enqueued */
if (p_clcb->p_q_cmd == p_data) {
p_clcb->p_q_cmd = NULL;
bta_gattc_pop_command_to_send(p_clcb);
}
bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_READ, status, NULL);
}
}
}
/*******************************************************************************
**
** Function bta_gattc_write
**
** Description Write an attribute
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_write(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
if (!bta_gattc_enqueue(p_clcb, p_data))
return;
tBTA_GATT_STATUS status = BTA_GATT_OK;
tGATT_VALUE attr;
attr.conn_id = p_clcb->bta_conn_id;
attr.handle = p_data->api_write.handle;
attr.offset = p_data->api_write.offset;
attr.len = p_data->api_write.len;
attr.auth_req = p_data->api_write.auth_req;
if (p_data->api_write.p_value) {
memcpy(attr.value, p_data->api_write.p_value, p_data->api_write.len);
}
status = GATTC_Write(p_clcb->bta_conn_id, p_data->api_write.write_type, &attr);
/* write fail */
if (status != BTA_GATT_OK) {
/* Dequeue the data, if it was enqueued */
if (p_clcb->p_q_cmd == p_data) {
p_clcb->p_q_cmd = NULL;
bta_gattc_pop_command_to_send(p_clcb);
}
bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_WRITE, status, NULL);
}
}
/*******************************************************************************
**
** Function bta_gattc_execute
**
** Description send execute write
**
** Returns None.
*********************************************************************************/
void bta_gattc_execute(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATT_STATUS status;
if (bta_gattc_enqueue(p_clcb, p_data)) {
status = GATTC_ExecuteWrite(p_clcb->bta_conn_id, p_data->api_exec.is_execute);
if (status != BTA_GATT_OK) {
/* Dequeue the data, if it was enqueued */
if (p_clcb->p_q_cmd == p_data) {
p_clcb->p_q_cmd = NULL;
bta_gattc_pop_command_to_send(p_clcb);
}
bta_gattc_cmpl_sendmsg(p_clcb->bta_conn_id, GATTC_OPTYPE_EXE_WRITE, status, NULL);
}
}
}
/*******************************************************************************
**
** Function bta_gattc_confirm
**
** Description send handle value confirmation
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_confirm(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
UINT16 handle = p_data->api_confirm.handle;
if (GATTC_SendHandleValueConfirm(p_data->api_confirm.hdr.layer_specific, handle)
!= GATT_SUCCESS) {
APPL_TRACE_ERROR("bta_gattc_confirm to handle [0x%04x] failed", handle);
} else {
/* if over BR_EDR, inform PM for mode change */
if (p_clcb->transport == BTA_TRANSPORT_BR_EDR) {
bta_sys_busy(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda);
bta_sys_idle(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda);
}
}
}
/*******************************************************************************
**
** Function bta_gattc_read_cmpl
**
** Description read complete
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_read_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_OP_CMPL *p_data)
{
UINT8 event;
tBTA_GATTC cb_data;
tBTA_GATT_UNFMT read_value;
memset(&cb_data, 0, sizeof(tBTA_GATTC));
memset(&read_value, 0, sizeof(tBTA_GATT_UNFMT));
cb_data.read.status = p_data->status;
if (p_data->p_cmpl != NULL && p_data->status == BTA_GATT_OK) {
cb_data.read.handle = p_data->p_cmpl->att_value.handle;
read_value.len = p_data->p_cmpl->att_value.len;
read_value.p_value = p_data->p_cmpl->att_value.value;
cb_data.read.p_value = &read_value;
} else {
cb_data.read.handle = p_clcb->p_q_cmd->api_read.handle;
}
if (p_clcb->p_q_cmd->hdr.event != BTA_GATTC_API_READ_MULTI_EVT) {
event = p_clcb->p_q_cmd->api_read.cmpl_evt;
} else {
event = p_clcb->p_q_cmd->api_read_multi.cmpl_evt;
}
cb_data.read.conn_id = p_clcb->bta_conn_id;
//free the command data store in the queue.
bta_gattc_free_command_data(p_clcb);
bta_gattc_pop_command_to_send(p_clcb);
/* read complete, callback */
( *p_clcb->p_rcb->p_cback)(event, (tBTA_GATTC *)&cb_data);
}
/*******************************************************************************
**
** Function bta_gattc_write_cmpl
**
** Description write complete
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_write_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_OP_CMPL *p_data)
{
tBTA_GATTC cb_data = {0};
UINT8 event;
memset(&cb_data, 0, sizeof(tBTA_GATTC));
cb_data.write.status = p_data->status;
cb_data.write.handle = p_data->p_cmpl->att_value.handle;
if (p_clcb->p_q_cmd->api_write.hdr.event == BTA_GATTC_API_WRITE_EVT &&
p_clcb->p_q_cmd->api_write.write_type == BTA_GATTC_WRITE_PREPARE) {
event = BTA_GATTC_PREP_WRITE_EVT;
} else {
event = p_clcb->p_q_cmd->api_write.cmpl_evt;
}
//free the command data store in the queue.
bta_gattc_free_command_data(p_clcb);
bta_gattc_pop_command_to_send(p_clcb);
cb_data.write.conn_id = p_clcb->bta_conn_id;
/* write complete, callback */
( *p_clcb->p_rcb->p_cback)(event, (tBTA_GATTC *)&cb_data);
}
/*******************************************************************************
**
** Function bta_gattc_exec_cmpl
**
** Description execute write complete
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_exec_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_OP_CMPL *p_data)
{
tBTA_GATTC cb_data;
//free the command data store in the queue.
bta_gattc_free_command_data(p_clcb);
bta_gattc_pop_command_to_send(p_clcb);
p_clcb->status = BTA_GATT_OK;
/* execute complete, callback */
cb_data.exec_cmpl.conn_id = p_clcb->bta_conn_id;
cb_data.exec_cmpl.status = p_data->status;
( *p_clcb->p_rcb->p_cback)(BTA_GATTC_EXEC_EVT, &cb_data);
}
/*******************************************************************************
**
** Function bta_gattc_cfg_mtu_cmpl
**
** Description configure MTU operation complete
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_cfg_mtu_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_OP_CMPL *p_data)
{
tBTA_GATTC cb_data;
//free the command data store in the queue.
bta_gattc_free_command_data(p_clcb);
bta_gattc_pop_command_to_send(p_clcb);
if (p_data->p_cmpl && p_data->status == BTA_GATT_OK) {
p_clcb->p_srcb->mtu = p_data->p_cmpl->mtu;
}
/* configure MTU complete, callback */
p_clcb->status = p_data->status;
cb_data.cfg_mtu.conn_id = p_clcb->bta_conn_id;
cb_data.cfg_mtu.status = p_data->status;
cb_data.cfg_mtu.mtu = p_clcb->p_srcb->mtu;
(*p_clcb->p_rcb->p_cback) (BTA_GATTC_CFG_MTU_EVT, &cb_data);
}
/*******************************************************************************
**
** Function bta_gattc_op_cmpl
**
** Description operation completed.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_op_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
UINT8 op = (UINT8)p_data->op_cmpl.op_code;
UINT8 mapped_op = 0;
APPL_TRACE_DEBUG("bta_gattc_op_cmpl op = %d", op);
if (op == GATTC_OPTYPE_INDICATION || op == GATTC_OPTYPE_NOTIFICATION) {
APPL_TRACE_ERROR("unexpected operation, ignored");
} else if (op >= GATTC_OPTYPE_READ) {
if (p_clcb->p_q_cmd == NULL) {
APPL_TRACE_ERROR("No pending command");
return;
}
if (p_clcb->p_q_cmd->hdr.event != bta_gattc_opcode_to_int_evt[op - GATTC_OPTYPE_READ]) {
if (p_clcb->p_q_cmd->hdr.event != BTA_GATTC_API_READ_MULTI_EVT) {
mapped_op = p_clcb->p_q_cmd->hdr.event - BTA_GATTC_API_READ_EVT + GATTC_OPTYPE_READ;
if ( mapped_op > GATTC_OPTYPE_INDICATION) {
mapped_op = 0;
}
#if (BT_TRACE_VERBOSE == TRUE)
APPL_TRACE_ERROR("expect op:(%s :0x%04x), receive unexpected operation (%s).",
bta_gattc_op_code_name[mapped_op] , p_clcb->p_q_cmd->hdr.event,
bta_gattc_op_code_name[op]);
#else
APPL_TRACE_ERROR("expect op:(%u :0x%04x), receive unexpected operation (%u).",
mapped_op , p_clcb->p_q_cmd->hdr.event, op);
#endif
return;
}
}
/* discard responses if service change indication is received before operation completed */
if (p_clcb->auto_update == BTA_GATTC_DISC_WAITING && p_clcb->p_srcb->srvc_hdl_chg) {
APPL_TRACE_DEBUG("Discard all responses when service change indication is received.");
p_data->op_cmpl.status = GATT_ERROR;
}
/* service handle change void the response, discard it */
if (op == GATTC_OPTYPE_READ) {
bta_gattc_read_cmpl(p_clcb, &p_data->op_cmpl);
}
else if (op == GATTC_OPTYPE_WRITE) {
bta_gattc_write_cmpl(p_clcb, &p_data->op_cmpl);
}
else if (op == GATTC_OPTYPE_EXE_WRITE) {
bta_gattc_exec_cmpl(p_clcb, &p_data->op_cmpl);
}
else if (op == GATTC_OPTYPE_CONFIG) {
bta_gattc_cfg_mtu_cmpl(p_clcb, &p_data->op_cmpl);
}
if (p_clcb->auto_update == BTA_GATTC_DISC_WAITING) {
p_clcb->auto_update = BTA_GATTC_REQ_WAITING;
bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL);
}
}
}
/*******************************************************************************
**
** Function bta_gattc_op_cmpl
**
** Description operation completed.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_ignore_op_cmpl(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
UNUSED(p_clcb);
/* receive op complete when discovery is started, ignore the response,
and wait for discovery finish and resent */
APPL_TRACE_DEBUG("bta_gattc_ignore_op_cmpl op = %d", p_data->hdr.layer_specific);
}
/*******************************************************************************
**
** Function bta_gattc_search
**
** Description start a search in the local server cache
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_search(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATT_STATUS status = GATT_INTERNAL_ERROR;
tBTA_GATTC cb_data;
APPL_TRACE_DEBUG("bta_gattc_search conn_id=%d", p_clcb->bta_conn_id);
if (p_clcb->p_srcb && p_clcb->p_srcb->p_srvc_cache) {
status = BTA_GATT_OK;
/* search the local cache of a server device */
bta_gattc_search_service(p_clcb, p_data->api_search.p_srvc_uuid);
}
cb_data.search_cmpl.status = status;
cb_data.search_cmpl.conn_id = p_clcb->bta_conn_id;
/* end of search or no server cache available */
( *p_clcb->p_rcb->p_cback)(BTA_GATTC_SEARCH_CMPL_EVT, &cb_data);
}
/*******************************************************************************
**
** Function bta_gattc_q_cmd
**
** Description enqueue a command into control block, usually because discovery
** operation is busy.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_q_cmd(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
bta_gattc_enqueue(p_clcb, p_data);
}
/*******************************************************************************
**
** Function bta_gattc_pop_command_to_send
**
** Description dequeue a command into control block.
** Check if there has command pending in the command queue or not,
** if there has command pending in the command queue, sent it to the state machine to decision
** should be sent it to the remote device or not.
**
** Returns None.
**
*******************************************************************************/
static void bta_gattc_pop_command_to_send(tBTA_GATTC_CLCB *p_clcb)
{
if (!list_is_empty(p_clcb->p_cmd_list)) {
list_node_t *node = list_begin(p_clcb->p_cmd_list);
tBTA_GATTC_DATA *p_data = (tBTA_GATTC_DATA *)list_node(node);
if (p_data != NULL) {
/* execute pending operation of link block still present */
if (l2cu_find_lcb_by_bd_addr(p_clcb->p_srcb->server_bda, BT_TRANSPORT_LE) != NULL) {
// The data to be sent to the gattc state machine for processing
if(bta_gattc_sm_execute(p_clcb, p_data->hdr.event, p_data)) {
list_remove(p_clcb->p_cmd_list, (void *)p_data);
}
if (p_clcb->is_full) {
tBTA_GATTC cb_data = {0};
p_clcb->is_full = FALSE;
cb_data.status = GATT_SUCCESS;
cb_data.queue_full.conn_id = p_clcb->bta_conn_id;
cb_data.queue_full.is_full = FALSE;
if (p_clcb->p_rcb->p_cback != NULL) {
( *p_clcb->p_rcb->p_cback)(BTA_GATTC_QUEUE_FULL_EVT, (tBTA_GATTC *)&cb_data);
}
}
}
}
}
}
/*******************************************************************************
**
** Function bta_gattc_free_command_data
**
** Description free the command data into control block.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_free_command_data(tBTA_GATTC_CLCB *p_clcb)
{
assert(p_clcb->p_cmd_list);
//Check the list is empty or not.
if (!list_is_empty(p_clcb->p_cmd_list)) {
/* Traversal the command queue, check the p_q_cmd is point to the queue data or not, if the p_q_cmd point to the
command queue,should remove it from the list */
for (list_node_t *node = list_begin(p_clcb->p_cmd_list); node != list_end(p_clcb->p_cmd_list);
node = list_next(node)) {
tBTA_GATTC_DATA *p_data = (tBTA_GATTC_DATA *)list_node(node);
if (p_data == p_clcb->p_q_cmd) {
list_remove(p_clcb->p_cmd_list, (void *)p_data);
p_clcb->p_q_cmd = NULL;
return;
}
}
osi_free(p_clcb->p_q_cmd);
p_clcb->p_q_cmd = NULL;
} else {
osi_free(p_clcb->p_q_cmd);
p_clcb->p_q_cmd = NULL;
}
}
/*******************************************************************************
**
** Function bta_gattc_fail
**
** Description report API call failure back to apps
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_fail(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
UNUSED(p_data);
if (p_clcb->status == BTA_GATT_OK) {
APPL_TRACE_ERROR("operation not supported at current state [%d]", p_clcb->state);
}
}
/*******************************************************************************
**
** Function bta_gattc_deregister_cmpl
**
** Description De-Register a GATT client application with BTA completed.
**
** Returns void
**
*******************************************************************************/
static void bta_gattc_deregister_cmpl(tBTA_GATTC_RCB *p_clreg)
{
tBTA_GATTC_CB *p_cb = &bta_gattc_cb;
tBTA_GATTC_IF client_if = p_clreg->client_if;
tBTA_GATTC cb_data;
tBTA_GATTC_CBACK *p_cback = p_clreg->p_cback;
memset(&cb_data, 0, sizeof(tBTA_GATTC));
GATT_Deregister(p_clreg->client_if);
memset(p_clreg, 0, sizeof(tBTA_GATTC_RCB));
cb_data.reg_oper.client_if = client_if;
cb_data.reg_oper.status = BTA_GATT_OK;
if (p_cback)
/* callback with de-register event */
{
(*p_cback)(BTA_GATTC_DEREG_EVT, (tBTA_GATTC *)&cb_data);
}
if (bta_gattc_num_reg_app() == 0 && p_cb->state == BTA_GATTC_STATE_DISABLING) {
p_cb->state = BTA_GATTC_STATE_DISABLED;
}
}
/*******************************************************************************
**
** Function bta_gattc_conn_cback
**
** Description callback functions to GATT client stack.
**
** Returns void
**
*******************************************************************************/
static void bta_gattc_conn_cback(tGATT_IF gattc_if, BD_ADDR bda, UINT16 conn_id,
BOOLEAN connected, tGATT_DISCONN_REASON reason,
tBT_TRANSPORT transport)
{
tBTA_GATTC_DATA *p_buf;
BOOLEAN start_ccc_timer = FALSE;
tBTA_GATTC_CONN *p_conn = NULL;
tBTA_GATTC_FIND_SERVICE_CB result;
if (reason != 0) {
APPL_TRACE_WARNING("%s() - cif=%d connected=%d conn_id=%d reason=0x%04x",
__FUNCTION__, gattc_if, connected, conn_id, reason);
}
if (connected == TRUE){
p_conn = bta_gattc_conn_find_alloc(bda);
}
else if (connected == FALSE){
p_conn = bta_gattc_conn_find(bda);
}
if (p_conn == NULL){
APPL_TRACE_ERROR("p_conn is NULL in %s\n", __func__);
}
if ((transport == BT_TRANSPORT_LE) && (connected == TRUE) && (p_conn != NULL) \
&& (p_conn->service_change_ccc_written == FALSE) && (p_conn->ccc_timer_used == FALSE)) {
result = bta_gattc_register_service_change_notify(conn_id, bda, &start_ccc_timer);
if (start_ccc_timer == TRUE) {
TIMER_LIST_ENT *ccc_timer = &(p_conn->service_change_ccc_timer);
/* start a 1000ms timer to wait for service discovery finished */
bta_gattc_start_service_change_ccc_timer(conn_id, bda, 1000, 0, result, ccc_timer);
p_conn->ccc_timer_used = TRUE;
}
else {
/* Has written service change ccc; or service change ccc doesn't exist in remote device's gatt database */
p_conn->service_change_ccc_written = TRUE;
p_conn->ccc_timer_used = FALSE;
}
}
else if ((transport == BT_TRANSPORT_LE) && (connected == FALSE) && (p_conn != NULL)){
p_conn->service_change_ccc_written = FALSE;
if (p_conn->ccc_timer_used == TRUE){
assert(write_ccc_mutex != NULL);
osi_mutex_lock(&write_ccc_mutex, OSI_MUTEX_MAX_TIMEOUT);
if (p_conn->service_change_ccc_timer.param != 0) {
osi_free((void *)p_conn->service_change_ccc_timer.param);
p_conn->service_change_ccc_timer.param = (TIMER_PARAM_TYPE)0;
}
bta_sys_stop_timer(&(p_conn->service_change_ccc_timer));
p_conn->ccc_timer_used = FALSE;
osi_mutex_unlock(&write_ccc_mutex);
}
}
bt_bdaddr_t bdaddr;
bdcpy(bdaddr.address, bda);
if ((p_buf = (tBTA_GATTC_DATA *) osi_malloc(sizeof(tBTA_GATTC_DATA))) != NULL) {
memset(p_buf, 0, sizeof(tBTA_GATTC_DATA));
p_buf->int_conn.hdr.event = connected ? BTA_GATTC_INT_CONN_EVT :
BTA_GATTC_INT_DISCONN_EVT;
p_buf->int_conn.hdr.layer_specific = conn_id;
p_buf->int_conn.client_if = gattc_if;
p_buf->int_conn.role = L2CA_GetBleConnRole(bda);
p_buf->int_conn.reason = reason;
p_buf->int_conn.transport = transport;
bdcpy(p_buf->int_conn.remote_bda, bda);
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function bta_gattc_enc_cmpl_cback
**
** Description encryption complete callback function to GATT client stack.
**
** Returns void
**
*******************************************************************************/
static void bta_gattc_enc_cmpl_cback(tGATT_IF gattc_if, BD_ADDR bda)
{
tBTA_GATTC_DATA *p_buf;
tBTA_GATTC_CLCB *p_clcb = NULL;
if ((p_clcb = bta_gattc_find_clcb_by_cif(gattc_if, bda, BTA_GATT_TRANSPORT_LE)) == NULL) {
return;
}
#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
/* filter this event just for BTA HH LE GATT client,
In the future, if we want to enable encryption complete event
for all GATT clients, we can remove this code */
if (!bta_hh_le_is_hh_gatt_if(gattc_if)) {
return;
}
#endif
APPL_TRACE_DEBUG("bta_gattc_enc_cmpl_cback: cif = %d", gattc_if);
if ((p_buf = (tBTA_GATTC_DATA *) osi_calloc(sizeof(tBTA_GATTC_DATA))) != NULL) {
memset(p_buf, 0, sizeof(tBTA_GATTC_DATA));
p_buf->enc_cmpl.hdr.event = BTA_GATTC_ENC_CMPL_EVT;
p_buf->enc_cmpl.hdr.layer_specific = p_clcb->bta_conn_id;
p_buf->enc_cmpl.client_if = gattc_if;
bdcpy(p_buf->enc_cmpl.remote_bda, bda);
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function bta_gattc_process_api_refresh
**
** Description process refresh API to delete cache and start a new discovery
** if currently connected.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_process_api_refresh(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg)
{
tBTA_GATTC_SERV *p_srvc_cb = bta_gattc_find_srvr_cache(p_msg->api_conn.remote_bda);
tBTA_GATTC_CLCB *p_clcb = &bta_gattc_cb.clcb[0];
BOOLEAN found = FALSE;
UINT8 i;
UNUSED(p_cb);
if (p_srvc_cb != NULL) {
/* try to find a CLCB */
if (p_srvc_cb->connected && p_srvc_cb->num_clcb != 0) {
for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++, p_clcb ++) {
if (p_clcb->in_use && p_clcb->p_srcb == p_srvc_cb) {
found = TRUE;
break;
}
}
if (found) {
bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL);
return;
}
}
/* in all other cases, mark it and delete the cache */
if (p_srvc_cb->p_srvc_cache != NULL) {
list_free(p_srvc_cb->p_srvc_cache);
p_srvc_cb->p_srvc_cache = NULL;
}
}
/* used to reset cache in application */
bta_gattc_cache_reset(p_msg->api_conn.remote_bda);
}
/*******************************************************************************
**
** Function bta_gattc_process_srvc_chg_ind
**
** Description process service change indication.
**
** Returns None.
**
*******************************************************************************/
BOOLEAN bta_gattc_process_srvc_chg_ind(UINT16 conn_id,
tBTA_GATTC_RCB *p_clrcb,
tBTA_GATTC_SERV *p_srcb,
tBTA_GATTC_CLCB *p_clcb,
tBTA_GATTC_NOTIFY *p_notify,
tGATT_VALUE *att_value)
{
tBT_UUID gattp_uuid, srvc_chg_uuid;
BOOLEAN processed = FALSE;
UINT8 i;
gattp_uuid.len = 2;
gattp_uuid.uu.uuid16 = UUID_SERVCLASS_GATT_SERVER;
srvc_chg_uuid.len = 2;
srvc_chg_uuid.uu.uuid16 = GATT_UUID_GATT_SRV_CHGD;
const tBTA_GATTC_CHARACTERISTIC *p_char = bta_gattc_get_characteristic_srcb(p_srcb, p_notify->handle);
if (p_char && bta_gattc_uuid_compare(&p_char->service->uuid, &gattp_uuid, TRUE) &&
bta_gattc_uuid_compare(&p_char->uuid, &srvc_chg_uuid, TRUE)) {
if (att_value->len != BTA_GATTC_SERVICE_CHANGED_LEN) {
APPL_TRACE_ERROR("%s: received malformed service changed indication, skipping", __func__);
return FALSE;
}
UINT8 *p = att_value->value;
UINT16 s_handle = ((UINT16)(*(p )) + (((UINT16)(*(p + 1))) << 8));
UINT16 e_handle = ((UINT16)(*(p + 2)) + (((UINT16)(*(p + 3))) << 8));
APPL_TRACE_ERROR("%s: service changed s_handle:0x%04x e_handle:0x%04x",
__func__, s_handle, e_handle);
processed = TRUE;
/* mark service handle change pending */
p_srcb->srvc_hdl_chg = TRUE;
/* clear up all notification/indication registration */
bta_gattc_clear_notif_registration(p_srcb, conn_id, s_handle, e_handle);
/* service change indication all received, do discovery update */
if ( ++ p_srcb->update_count == bta_gattc_num_reg_app()) {
/* not an opened connection; or connection busy */
/* search for first available clcb and start discovery */
if (p_clcb == NULL || (p_clcb && p_clcb->p_q_cmd != NULL)) {
for (i = 0 ; i < BTA_GATTC_CLCB_MAX; i ++) {
if (bta_gattc_cb.clcb[i].in_use &&
bta_gattc_cb.clcb[i].p_srcb == p_srcb &&
bta_gattc_cb.clcb[i].p_q_cmd == NULL) {
p_clcb = &bta_gattc_cb.clcb[i];
break;
}
}
}
/* send confirmation here if this is an indication, it should always be */
GATTC_SendHandleValueConfirm(conn_id, att_value->handle);
/* if connection available, refresh cache by doing discovery now */
if (p_clcb != NULL) {
bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_DISCOVER_EVT, NULL);
}
}
/* notify applicationf or service change */
if (p_clrcb->p_cback != NULL) {
(* p_clrcb->p_cback)(BTA_GATTC_SRVC_CHG_EVT, (tBTA_GATTC *)p_srcb->server_bda);
}
}
return processed;
}
/*******************************************************************************
**
** Function bta_gattc_proc_other_indication
**
** Description process all non-service change indication/notification.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_proc_other_indication(tBTA_GATTC_CLCB *p_clcb, UINT8 op,
tGATT_CL_COMPLETE *p_data,
tBTA_GATTC_NOTIFY *p_notify)
{
APPL_TRACE_DEBUG("bta_gattc_proc_other_indication check p_data->att_value.handle=%d p_data->handle=%d",
p_data->att_value.handle, p_data->handle);
APPL_TRACE_DEBUG("is_notify %d", p_notify->is_notify);
p_notify->is_notify = (op == GATTC_OPTYPE_INDICATION) ? FALSE : TRUE;
p_notify->len = p_data->att_value.len;
bdcpy(p_notify->bda, p_clcb->bda);
memcpy(p_notify->value, p_data->att_value.value, p_data->att_value.len);
p_notify->conn_id = p_clcb->bta_conn_id;
if (p_clcb->p_rcb->p_cback) {
(*p_clcb->p_rcb->p_cback)(BTA_GATTC_NOTIF_EVT, (tBTA_GATTC *)p_notify);
}
}
/*******************************************************************************
**
** Function bta_gattc_process_indicate
**
** Description process indication/notification.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_process_indicate(UINT16 conn_id, tGATTC_OPTYPE op, tGATT_CL_COMPLETE *p_data)
{
UINT16 handle = p_data->att_value.handle;
tBTA_GATTC_CLCB *p_clcb ;
tBTA_GATTC_RCB *p_clrcb = NULL;
tBTA_GATTC_SERV *p_srcb = NULL;
tBTA_GATTC_NOTIFY notify;
BD_ADDR remote_bda;
tBTA_GATTC_IF gatt_if;
tBTA_TRANSPORT transport;
if (!GATT_GetConnectionInfor(conn_id, &gatt_if, remote_bda, &transport)) {
APPL_TRACE_ERROR("%s indication/notif for unknown app", __func__);
if (op == GATTC_OPTYPE_INDICATION) {
GATTC_SendHandleValueConfirm(conn_id, handle);
}
return;
}
if ((p_clrcb = bta_gattc_cl_get_regcb(gatt_if)) == NULL) {
APPL_TRACE_ERROR("%s indication/notif for unregistered app", __func__);
if (op == GATTC_OPTYPE_INDICATION) {
GATTC_SendHandleValueConfirm(conn_id, handle);
}
return;
}
if ((p_srcb = bta_gattc_find_srcb(remote_bda)) == NULL) {
APPL_TRACE_ERROR("%s indication/notif for unknown device, ignore", __func__);
if (op == GATTC_OPTYPE_INDICATION) {
GATTC_SendHandleValueConfirm(conn_id, handle);
}
return;
}
p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
notify.handle = handle;
/* if non-service change indication/notification, forward to application */
if (!bta_gattc_process_srvc_chg_ind(conn_id, p_clrcb, p_srcb, p_clcb, &notify, &p_data->att_value)) {
/* if app registered for the notification */
if (bta_gattc_check_notif_registry(p_clrcb, p_srcb, &notify)) {
/* connection not open yet */
if (p_clcb == NULL) {
p_clcb = bta_gattc_clcb_alloc(gatt_if, remote_bda, transport);
if (p_clcb == NULL) {
APPL_TRACE_ERROR("No resources");
return;
}
p_clcb->bta_conn_id = conn_id;
p_clcb->transport = transport;
bta_gattc_sm_execute(p_clcb, BTA_GATTC_INT_CONN_EVT, NULL);
}
if (p_clcb != NULL) {
bta_gattc_proc_other_indication(p_clcb, op, p_data, &notify);
}
} else if (op == GATTC_OPTYPE_INDICATION) {
/* no one intersted and need ack? */
APPL_TRACE_DEBUG("%s no one interested, ack now", __func__);
GATTC_SendHandleValueConfirm(conn_id, handle);
}
}
}
/*******************************************************************************
**
** Function bta_gattc_cmpl_cback
**
** Description client operation complete callback register with BTE GATT.
**
** Returns None.
**
*******************************************************************************/
static void bta_gattc_cmpl_cback(UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status,
tGATT_CL_COMPLETE *p_data)
{
tBTA_GATTC_CLCB *p_clcb;
APPL_TRACE_DEBUG("bta_gattc_cmpl_cback: conn_id = %d op = %d status = %d",
conn_id, op, status);
/* notification and indication processed right away */
if (op == GATTC_OPTYPE_NOTIFICATION || op == GATTC_OPTYPE_INDICATION) {
bta_gattc_process_indicate(conn_id, op, p_data);
return;
}
/* for all other operation, not expected if w/o connection */
else if ((p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id)) == NULL) {
APPL_TRACE_ERROR("bta_gattc_cmpl_cback unknown conn_id = %d, ignore data", conn_id);
return;
}
/* if over BR_EDR, inform PM for mode change */
if (p_clcb->transport == BTA_TRANSPORT_BR_EDR) {
bta_sys_busy(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda);
bta_sys_idle(BTA_ID_GATTC, BTA_ALL_APP_ID, p_clcb->bda);
}
bta_gattc_cmpl_sendmsg(conn_id, op, status, p_data);
}
/*******************************************************************************
**
** Function bta_gattc_cmpl_sendmsg
**
** Description client operation complete send message
**
** Returns None.
**
*******************************************************************************/
static void bta_gattc_cmpl_sendmsg(UINT16 conn_id, tGATTC_OPTYPE op,
tBTA_GATT_STATUS status,
tGATT_CL_COMPLETE *p_data)
{
const UINT16 len = sizeof(tBTA_GATTC_OP_CMPL) + sizeof(tGATT_CL_COMPLETE);
tBTA_GATTC_OP_CMPL *p_buf = (tBTA_GATTC_OP_CMPL *) osi_malloc(len);
if (p_buf != NULL) {
memset(p_buf, 0, len);
p_buf->hdr.event = BTA_GATTC_OP_CMPL_EVT;
p_buf->hdr.layer_specific = conn_id;
p_buf->status = status;
p_buf->op_code = op;
if (p_data != NULL) {
p_buf->p_cmpl = (tGATT_CL_COMPLETE *)(p_buf + 1);
memcpy(p_buf->p_cmpl, p_data, sizeof(tGATT_CL_COMPLETE));
}
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function bta_gattc_cong_cback
**
** Description congestion callback for BTA GATT client.
**
** Returns void
**
********************************************************************************/
static void bta_gattc_cong_cback (UINT16 conn_id, BOOLEAN congested)
{
tBTA_GATTC_CLCB *p_clcb;
tBTA_GATTC cb_data;
if ((p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id)) != NULL) {
if (p_clcb->p_rcb->p_cback) {
cb_data.congest.conn_id = conn_id;
cb_data.congest.congested = congested;
(*p_clcb->p_rcb->p_cback)(BTA_GATTC_CONGEST_EVT, &cb_data);
}
}
}
#if BLE_INCLUDED == TRUE
/*******************************************************************************
**
** Function bta_gattc_init_clcb_conn
**
** Description Initaite a BTA CLCB connection
**
** Returns void
**
********************************************************************************/
void bta_gattc_init_clcb_conn(UINT8 cif, BD_ADDR remote_bda)
{
tBTA_GATTC_CLCB *p_clcb = NULL;
tBTA_GATTC_DATA gattc_data;
UINT16 conn_id;
/* should always get the connection ID */
if (GATT_GetConnIdIfConnected(cif, remote_bda, &conn_id, BTA_GATT_TRANSPORT_LE) == FALSE) {
APPL_TRACE_ERROR("bta_gattc_init_clcb_conn ERROR: not a connected device");
return;
}
/* initaite a new connection here */
if ((p_clcb = bta_gattc_clcb_alloc(cif, remote_bda, BTA_GATT_TRANSPORT_LE)) != NULL) {
gattc_data.hdr.layer_specific = p_clcb->bta_conn_id = conn_id;
gattc_data.api_conn.client_if = cif;
memcpy(gattc_data.api_conn.remote_bda, remote_bda, BD_ADDR_LEN);
gattc_data.api_conn.is_direct = TRUE;
bta_gattc_sm_execute(p_clcb, BTA_GATTC_API_OPEN_EVT, &gattc_data);
} else {
APPL_TRACE_ERROR("No resources");
}
}
/*******************************************************************************
**
** Function bta_gattc_process_listen_all
**
** Description process listen all, send open callback to application for all
** connected slave LE link.
**
** Returns void
**
********************************************************************************/
void bta_gattc_process_listen_all(UINT8 cif)
{
UINT8 i_conn = 0;
tBTA_GATTC_CONN *p_conn = &bta_gattc_cb.conn_track[0];
for (i_conn = 0; i_conn < BTA_GATTC_CONN_MAX; i_conn++, p_conn ++) {
if (p_conn->in_use ) {
if (bta_gattc_find_clcb_by_cif(cif, p_conn->remote_bda, BTA_GATT_TRANSPORT_LE) == NULL) {
bta_gattc_init_clcb_conn(cif, p_conn->remote_bda);
}
/* else already connected */
}
}
}
/*******************************************************************************
**
** Function bta_gattc_listen
**
** Description Start or stop a listen for connection
**
** Returns void
**
********************************************************************************/
void bta_gattc_listen(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg)
{
tBTA_GATTC_RCB *p_clreg = bta_gattc_cl_get_regcb(p_msg->api_listen.client_if);
tBTA_GATTC cb_data;
UNUSED(p_cb);
cb_data.reg_oper.status = BTA_GATT_ERROR;
cb_data.reg_oper.client_if = p_msg->api_listen.client_if;
if (p_clreg == NULL) {
APPL_TRACE_ERROR("bta_gattc_listen failed, unknown client_if: %d",
p_msg->api_listen.client_if);
return;
}
/* mark bg conn record */
if (bta_gattc_mark_bg_conn(p_msg->api_listen.client_if,
(BD_ADDR_PTR) p_msg->api_listen.remote_bda,
p_msg->api_listen.start,
TRUE)) {
if (!GATT_Listen(p_msg->api_listen.client_if,
p_msg->api_listen.start,
p_msg->api_listen.remote_bda)) {
APPL_TRACE_ERROR("Listen failure");
(*p_clreg->p_cback)(BTA_GATTC_LISTEN_EVT, &cb_data);
} else {
cb_data.status = BTA_GATT_OK;
(*p_clreg->p_cback)(BTA_GATTC_LISTEN_EVT, &cb_data);
if (p_msg->api_listen.start) {
/* if listen to a specific target */
if (p_msg->api_listen.remote_bda != NULL) {
/* if is a connected remote device */
if (L2CA_GetBleConnRole(p_msg->api_listen.remote_bda) == HCI_ROLE_SLAVE &&
bta_gattc_find_clcb_by_cif(p_msg->api_listen.client_if,
p_msg->api_listen.remote_bda,
BTA_GATT_TRANSPORT_LE) == NULL) {
bta_gattc_init_clcb_conn(p_msg->api_listen.client_if,
p_msg->api_listen.remote_bda);
}
}
/* if listen to all */
else {
LOG_DEBUG("Listen For All now");
/* go through all connected device and send
callback for all connected slave connection */
bta_gattc_process_listen_all(p_msg->api_listen.client_if);
}
}
}
}
}
/*******************************************************************************
**
** Function bta_gattc_broadcast
**
** Description Start or stop broadcasting
**
** Returns void
**
********************************************************************************/
void bta_gattc_broadcast(tBTA_GATTC_CB *p_cb, tBTA_GATTC_DATA *p_msg)
{
tBTA_GATTC_RCB *p_clreg = bta_gattc_cl_get_regcb(p_msg->api_listen.client_if);
tBTA_GATTC cb_data;
UNUSED(p_cb);
cb_data.reg_oper.client_if = p_msg->api_listen.client_if;
cb_data.reg_oper.status = BTM_BleBroadcast(p_msg->api_listen.start, NULL);
if (p_clreg && p_clreg->p_cback) {
(*p_clreg->p_cback)(BTA_GATTC_LISTEN_EVT, &cb_data);
}
}
/*******************************************************************************
**
** Function bta_gattc_start_service_change_ccc_timer
**
** Description start a timer to wait for service change ccc discovered
**
** Returns void
**
*******************************************************************************/
void bta_gattc_start_service_change_ccc_timer(UINT16 conn_id, BD_ADDR bda,UINT32 timeout_ms,
UINT8 timer_cnt, UINT8 last_status, TIMER_LIST_ENT *ccc_timer)
{
tBTA_GATTC_WAIT_CCC_TIMER *p_timer_param = (tBTA_GATTC_WAIT_CCC_TIMER*) osi_malloc(sizeof(tBTA_GATTC_WAIT_CCC_TIMER));
if (p_timer_param != NULL) {
p_timer_param->conn_id = conn_id;
memcpy(p_timer_param->remote_bda, bda, sizeof(BD_ADDR));
p_timer_param->count = timer_cnt;
p_timer_param->last_status = last_status;
ccc_timer->param = (UINT32)p_timer_param;
ccc_timer->p_cback = (TIMER_CBACK *)&bta_gattc_wait4_service_change_ccc_cback;
bta_sys_start_timer(ccc_timer, 0, timeout_ms);
}
else {
APPL_TRACE_ERROR("%s, allocate p_timer_param failed\n", __func__);
}
}
/*******************************************************************************
**
** Function bta_gattc_register_service_change_notify
**
** Description Find remote device's gatt service change characteristic ccc's handle and write 2 to this
** this ccc. If not found, start a timer to wait for service discovery finished.
**
** Returns Return result of service change ccc service discovery result result and written operate result
**
*******************************************************************************/
tBTA_GATTC_FIND_SERVICE_CB bta_gattc_register_service_change_notify(UINT16 conn_id, BD_ADDR remote_bda, BOOLEAN *need_timer)
{
tBTA_GATTC_SERV *p_srcb = NULL;
list_t *p_cache = NULL;
tBTA_GATTC_SERVICE *p_service = NULL;
tBTA_GATTC_CHARACTERISTIC *p_char = NULL;
tBTA_GATTC_DESCRIPTOR *p_desc = NULL;
tGATT_STATUS write_status;
tGATT_VALUE ccc_value;
tBTA_GATTC_FIND_SERVICE_CB result;
BOOLEAN gatt_cache_found = FALSE;
BOOLEAN gatt_service_found = FALSE;
BOOLEAN gatt_service_change_found = FALSE;
BOOLEAN gatt_ccc_found = FALSE;
BOOLEAN start_find_ccc_timer = FALSE;
tBT_UUID gatt_service_uuid = {LEN_UUID_16, {UUID_SERVCLASS_GATT_SERVER}};
tBT_UUID gatt_service_change_uuid = {LEN_UUID_16, {GATT_UUID_GATT_SRV_CHGD}};
tBT_UUID gatt_ccc_uuid = {LEN_UUID_16, {GATT_UUID_CHAR_CLIENT_CONFIG}};
p_srcb = bta_gattc_find_srcb(remote_bda);
if ((p_srcb != NULL) && (p_srcb->p_srvc_cache != NULL)) {
p_cache = p_srcb->p_srvc_cache;
gatt_cache_found = TRUE;
}
else {
start_find_ccc_timer = TRUE;
result = SERVICE_CHANGE_CACHE_NOT_FOUND;
}
/* start to find gatt service */
if (gatt_cache_found == TRUE) {
for (list_node_t *sn = list_begin(p_cache);
sn != list_end(p_cache); sn = list_next(sn)) {
p_service = list_node(sn);
if (bta_gattc_uuid_compare(&gatt_service_uuid, &p_service->uuid, TRUE)) {
gatt_service_found = TRUE;
break;
}
}
}
else {
start_find_ccc_timer = TRUE;
result = SERVICE_CHANGE_CACHE_NOT_FOUND;
}
/* start to find gatt service change characteristic */
if (gatt_service_found == TRUE) {
if (p_service->characteristics) {
for (list_node_t *cn = list_begin(p_service->characteristics);
cn != list_end(p_service->characteristics); cn = list_next(cn)) {
p_char = list_node(cn);
if (bta_gattc_uuid_compare(&gatt_service_change_uuid, &p_char->uuid, TRUE)) {
gatt_service_change_found = TRUE;
break;
}
}
}
}
else if (gatt_cache_found == TRUE) {
/* Gatt service not found, start a timer to wait for service discovery */
start_find_ccc_timer = TRUE;
result = SERVICE_CHANGE_SERVICE_NOT_FOUND;
}
/* start to find gatt service change characteristic ccc */
if (gatt_service_change_found == TRUE) {
if (p_char->descriptors) {
for (list_node_t *dn = list_begin(p_char->descriptors);
dn != list_end(p_char->descriptors); dn = list_next(dn)) {
p_desc = list_node(dn);
if (bta_gattc_uuid_compare(&gatt_ccc_uuid, &p_desc->uuid, TRUE)) {
gatt_ccc_found = TRUE;
break;
}
}
}
}
else if (gatt_service_found ==TRUE) {
/* Gatt service found, but service change char not found,
* Case1: remote device doesn't have service change char, we don't need to start a timer here to
* wait for service discovery
* Case2: remote device exist service change char, we have found gatt service, but have not found
* service change char, we need to start a timer here*/
start_find_ccc_timer = TRUE;
result = SERVICE_CHANGE_CHAR_NOT_FOUND;
}
if (gatt_ccc_found == TRUE){
ccc_value.handle = p_desc->handle;
ccc_value.len = 2;
ccc_value.value[0] = GATT_CLT_CONFIG_INDICATION;
ccc_value.auth_req = GATT_AUTH_REQ_NONE;
if (gatt_is_clcb_allocated(conn_id)) {
APPL_TRACE_DEBUG("%s, GATTC_Write GATT_BUSY conn_id = %d", __func__, conn_id);
write_status = GATT_BUSY;
} else {
write_status = GATTC_Write (conn_id, GATT_WRITE, &ccc_value);
}
if (write_status != GATT_SUCCESS) {
start_find_ccc_timer = TRUE;
result = SERVICE_CHANGE_WRITE_CCC_FAILED;
}
else {
start_find_ccc_timer = FALSE;
result = SERVICE_CHANGE_CCC_WRITTEN_SUCCESS;
}
}
else if (gatt_service_change_found == TRUE) {
/* Gatt service char found, but service change char ccc not found,
* Case1: remote device doesn't have service change char ccc, we don't need to start a timer here to
* wait for service discovery
* Case2: remote device exist service change char ccc, we have found gatt service change char, but have not found
* service change char ccc, we need to start a timer here */
start_find_ccc_timer = TRUE;
result = SERVICE_CHANGE_CCC_NOT_FOUND;
}
if (need_timer != NULL) {
*need_timer = start_find_ccc_timer;
}
return result;
}
/*******************************************************************************
**
** Function bta_gattc_wait4_service_change_ccc_cback
**
** Description callback function of service_change_ccc_timer
**
** Returns None
**
*******************************************************************************/
static void bta_gattc_wait4_service_change_ccc_cback (TIMER_LIST_ENT *p_tle)
{
tBTA_GATTC_FIND_SERVICE_CB result;
BOOLEAN start_ccc_timer = FALSE;
UINT32 new_timeout;
assert(write_ccc_mutex != NULL);
osi_mutex_lock(&write_ccc_mutex, OSI_MUTEX_MAX_TIMEOUT);
tBTA_GATTC_WAIT_CCC_TIMER *p_timer_param = (tBTA_GATTC_WAIT_CCC_TIMER*) p_tle->param;
p_tle->param = (TIMER_PARAM_TYPE)0;
if (p_timer_param == NULL){
APPL_TRACE_ERROR("p_timer_param is NULL in %s\n", __func__);
osi_mutex_unlock(&write_ccc_mutex);
return;
}
tBTA_GATTC_CONN *p_conn = bta_gattc_conn_find(p_timer_param->remote_bda);
if (p_conn == NULL){
APPL_TRACE_ERROR("p_conn is NULL in %s\n", __func__);
osi_free(p_timer_param);
osi_mutex_unlock(&write_ccc_mutex);
return;
}
result = bta_gattc_register_service_change_notify(p_timer_param->conn_id, p_timer_param->remote_bda, &start_ccc_timer);
/* If return SERVICE_CHANGE_CHAR_NOT_FOUND or SERVICE_CHANGE_CCC_NOT_FOUND twice, means remote device doesn't have
* service change char or ccc, stop timer */
if ((result == p_timer_param->last_status) \
&& ((result == SERVICE_CHANGE_CHAR_NOT_FOUND) || (result == SERVICE_CHANGE_CCC_NOT_FOUND))){
start_ccc_timer = FALSE;
}
if ((start_ccc_timer == TRUE) && (p_timer_param->count < 10)){
TIMER_LIST_ENT *ccc_timer = &(p_conn->service_change_ccc_timer);
if (result == SERVICE_CHANGE_WRITE_CCC_FAILED){
/* retry to write service change ccc, needn't to add counter */
new_timeout = 200;
}
else {
/* retry to find service change ccc */
new_timeout = 1000;
p_timer_param->count ++;
}
bta_gattc_start_service_change_ccc_timer(p_timer_param->conn_id, p_timer_param->remote_bda, \
new_timeout, p_timer_param->count, result, ccc_timer);
}
else {
p_conn->ccc_timer_used = FALSE;
p_conn->service_change_ccc_written = TRUE;
}
osi_free(p_timer_param);
osi_mutex_unlock(&write_ccc_mutex);
}
#endif
#endif ///GATTC_INCLUDED == TRUE && BLE_INCLUDED == TRUE
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