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esp-idf/components/bt/host/bluedroid/bta/gatt/bta_gattc_utils.c

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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 utility function.
*
******************************************************************************/
#include "common/bt_target.h"
#if defined(GATTC_INCLUDED) && (GATTC_INCLUDED == TRUE)
#include <string.h>
#include "device/bdaddr.h"
// #include "btif/include/btif_util.h"
#include "bta/utl.h"
#include "bta/bta_sys.h"
#include "bta_gattc_int.h"
#include "stack/l2c_api.h"
#include "osi/allocator.h"
/*****************************************************************************
** Constants
*****************************************************************************/
static const UINT8 base_uuid[LEN_UUID_128] = {0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static const BD_ADDR dummy_bda = {0, 0, 0, 0, 0, 0};
#define GATTC_COMMAND_QUEUE_SIZE_MAX 30
/*******************************************************************************
**
** Function bta_gatt_convert_uuid16_to_uuid128
**
** Description Convert a 16 bits UUID to be an standard 128 bits one.
**
** Returns TRUE if two uuid match; FALSE otherwise.
**
*******************************************************************************/
void bta_gatt_convert_uuid16_to_uuid128(UINT8 uuid_128[LEN_UUID_128], UINT16 uuid_16)
{
UINT8 *p = &uuid_128[LEN_UUID_128 - 4];
memcpy (uuid_128, base_uuid, LEN_UUID_128);
UINT16_TO_STREAM(p, uuid_16);
}
/*******************************************************************************
**
** Function bta_gattc_uuid_compare
**
** Description Compare two UUID to see if they are the same.
**
** Returns TRUE if two uuid match; FALSE otherwise.
**
*******************************************************************************/
BOOLEAN bta_gattc_uuid_compare (const tBT_UUID *p_src, const tBT_UUID *p_tar, BOOLEAN is_precise)
{
UINT8 su[LEN_UUID_128], tu[LEN_UUID_128];
const UINT8 *ps, *pt;
/* any of the UUID is unspecified */
if (p_src == 0 || p_tar == 0) {
if (is_precise) {
return FALSE;
} else {
return TRUE;
}
}
/* If both are 16-bit, we can do a simple compare */
if (p_src->len == 2 && p_tar->len == 2) {
return p_src->uu.uuid16 == p_tar->uu.uuid16;
}
/* One or both of the UUIDs is 128-bit */
if (p_src->len == LEN_UUID_16) {
/* convert a 16 bits UUID to 128 bits value */
bta_gatt_convert_uuid16_to_uuid128(su, p_src->uu.uuid16);
ps = su;
} else {
ps = p_src->uu.uuid128;
}
if (p_tar->len == LEN_UUID_16) {
/* convert a 16 bits UUID to 128 bits value */
bta_gatt_convert_uuid16_to_uuid128(tu, p_tar->uu.uuid16);
pt = tu;
} else {
pt = p_tar->uu.uuid128;
}
return (memcmp(ps, pt, LEN_UUID_128) == 0);
}
/*******************************************************************************
**
** Function bta_gattc_cl_get_regcb
**
** Description get registration control block by client interface.
**
** Returns pointer to the regcb
**
*******************************************************************************/
tBTA_GATTC_RCB *bta_gattc_cl_get_regcb(UINT8 client_if)
{
UINT8 i = 0;
tBTA_GATTC_RCB *p_clrcb = &bta_gattc_cb.cl_rcb[0];
for (i = 0; i < BTA_GATTC_CL_MAX; i ++, p_clrcb ++) {
if (p_clrcb->in_use &&
p_clrcb->client_if == client_if) {
return p_clrcb;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_num_reg_app
**
** Description find the number of registered application.
**
** Returns pointer to the regcb
**
*******************************************************************************/
UINT8 bta_gattc_num_reg_app(void)
{
UINT8 i = 0, j = 0;
for (i = 0; i < BTA_GATTC_CL_MAX; i ++) {
if (bta_gattc_cb.cl_rcb[i].in_use) {
j ++;
}
}
return j;
}
/*******************************************************************************
**
** Function bta_gattc_find_clcb_by_cif
**
** Description get clcb by client interface and remote bd address
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CLCB *bta_gattc_find_clcb_by_cif (UINT8 client_if, BD_ADDR remote_bda,
tBTA_TRANSPORT transport)
{
tBTA_GATTC_CLCB *p_clcb = &bta_gattc_cb.clcb[0];
UINT8 i;
for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++, p_clcb ++) {
if (p_clcb->in_use &&
p_clcb->p_rcb->client_if == client_if &&
p_clcb->transport == transport &&
bdcmp(p_clcb->bda, remote_bda) == 0) {
return p_clcb;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_find_clcb_by_conn_id
**
** Description get clcb by connection ID
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CLCB *bta_gattc_find_clcb_by_conn_id (UINT16 conn_id)
{
tBTA_GATTC_CLCB *p_clcb = &bta_gattc_cb.clcb[0];
UINT8 i;
for (i = 0; i < BTA_GATTC_CLCB_MAX; i ++, p_clcb ++) {
if (p_clcb->in_use &&
p_clcb->bta_conn_id == conn_id) {
return p_clcb;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_clcb_alloc
**
** Description allocate CLCB
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CLCB *bta_gattc_clcb_alloc(tBTA_GATTC_IF client_if, BD_ADDR remote_bda,
tBTA_TRANSPORT transport)
{
UINT8 i_clcb = 0;
tBTA_GATTC_CLCB *p_clcb = NULL;
for (i_clcb = 0; i_clcb < BTA_GATTC_CLCB_MAX; i_clcb++) {
if (!bta_gattc_cb.clcb[i_clcb].in_use) {
#if BTA_GATT_DEBUG == TRUE
APPL_TRACE_DEBUG("bta_gattc_clcb_alloc: found clcb[%d] available", i_clcb);
#endif
p_clcb = &bta_gattc_cb.clcb[i_clcb];
p_clcb->in_use = TRUE;
p_clcb->status = BTA_GATT_OK;
p_clcb->transport = transport;
bdcpy(p_clcb->bda, remote_bda);
p_clcb->searched_service_source = BTA_GATTC_SERVICE_INFO_FROM_UNKNOWN;
p_clcb->p_rcb = bta_gattc_cl_get_regcb(client_if);
if (p_clcb->p_cmd_list == NULL) {
p_clcb->p_cmd_list = list_new(osi_free_func);
}
if ((p_clcb->p_srcb = bta_gattc_find_srcb(remote_bda)) == NULL) {
p_clcb->p_srcb = bta_gattc_srcb_alloc(remote_bda);
}
if (p_clcb->p_rcb != NULL && p_clcb->p_srcb != NULL) {
p_clcb->p_srcb->num_clcb ++;
p_clcb->p_rcb->num_clcb ++;
} else {
/* release this clcb if clcb or srcb allocation failed */
p_clcb->in_use = FALSE;
p_clcb = NULL;
}
break;
}
}
return p_clcb;
}
/*******************************************************************************
**
** Function bta_gattc_find_alloc_clcb
**
** Description find or allocate CLCB if not found.
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CLCB *bta_gattc_find_alloc_clcb(tBTA_GATTC_IF client_if, BD_ADDR remote_bda,
tBTA_TRANSPORT transport)
{
tBTA_GATTC_CLCB *p_clcb ;
if ((p_clcb = bta_gattc_find_clcb_by_cif(client_if, remote_bda, transport)) == NULL) {
p_clcb = bta_gattc_clcb_alloc(client_if, remote_bda, transport);
}
return p_clcb;
}
/*******************************************************************************
**
** Function bta_gattc_clcb_dealloc
**
** Description Deallocte a clcb
**
** Returns pointer to the clcb
**
*******************************************************************************/
void bta_gattc_clcb_dealloc(tBTA_GATTC_CLCB *p_clcb)
{
tBTA_GATTC_SERV *p_srcb = NULL;
if (p_clcb) {
p_srcb = p_clcb->p_srcb;
if (p_srcb->num_clcb) {
p_srcb->num_clcb --;
}
if (p_clcb->p_rcb->num_clcb) {
p_clcb->p_rcb->num_clcb --;
}
/* if the srcb is no longer needed, reset the state */
if ( p_srcb->num_clcb == 0) {
p_srcb->connected = FALSE;
p_srcb->state = BTA_GATTC_SERV_IDLE;
p_srcb->mtu = 0;
/* clean up cache */
if (p_srcb->p_srvc_cache) {
list_free(p_srcb->p_srvc_cache);
p_srcb->p_srvc_cache = NULL;
}
}
if ( p_clcb->p_q_cmd != NULL && !list_contains(p_clcb->p_cmd_list, p_clcb->p_q_cmd)){
osi_free(p_clcb->p_q_cmd);
p_clcb->p_q_cmd = NULL;
}
// don't forget to clear the command queue before dealloc the clcb.
list_clear(p_clcb->p_cmd_list);
osi_free((void *)p_clcb->p_cmd_list);
p_clcb->p_cmd_list = NULL;
//osi_free_and_reset((void **)&p_clcb->p_q_cmd);
memset(p_clcb, 0, sizeof(tBTA_GATTC_CLCB));
} else {
APPL_TRACE_ERROR("bta_gattc_clcb_dealloc p_clcb=NULL");
}
}
extern void bta_gattc_deregister_cmpl(tBTA_GATTC_RCB *p_clreg);
void bta_gattc_clcb_dealloc_by_conn_id(UINT16 conn_id)
{
tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
if (p_clcb) {
tBTA_GATTC_RCB *p_clreg = p_clcb->p_rcb;
bta_gattc_clcb_dealloc(p_clcb);
// there is a workaround: if there is no connect, we will reset it.
if (p_clreg && p_clreg->num_clcb == 0 && p_clreg->dereg_pending) {
bta_gattc_deregister_cmpl(p_clreg);
}
}
}
/*******************************************************************************
**
** Function bta_gattc_find_srcb
**
** Description find server cache by remote bd address currently in use
**
** Returns pointer to the server cache.
**
*******************************************************************************/
tBTA_GATTC_SERV *bta_gattc_find_srcb(BD_ADDR bda)
{
tBTA_GATTC_SERV *p_srcb = &bta_gattc_cb.known_server[0];
UINT8 i;
for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_srcb ++) {
if (p_srcb->in_use && bdcmp(p_srcb->server_bda, bda) == 0) {
return p_srcb;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_find_srvr_cache
**
** Description find server cache by remote bd address
**
** Returns pointer to the server cache.
**
*******************************************************************************/
tBTA_GATTC_SERV *bta_gattc_find_srvr_cache(BD_ADDR bda)
{
tBTA_GATTC_SERV *p_srcb = &bta_gattc_cb.known_server[0];
UINT8 i;
for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_srcb ++) {
if (bdcmp(p_srcb->server_bda, bda) == 0) {
return p_srcb;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_find_scb_by_cid
**
** Description find server control block by connection ID
**
** Returns pointer to the server cache.
**
*******************************************************************************/
tBTA_GATTC_SERV *bta_gattc_find_scb_by_cid (UINT16 conn_id)
{
tBTA_GATTC_CLCB *p_clcb = bta_gattc_find_clcb_by_conn_id(conn_id);
if (p_clcb) {
return p_clcb->p_srcb;
} else {
return NULL;
}
}
/*******************************************************************************
**
** Function bta_gattc_srcb_alloc
**
** Description allocate server cache control block
**
** Returns pointer to the server cache.
**
*******************************************************************************/
tBTA_GATTC_SERV *bta_gattc_srcb_alloc(BD_ADDR bda)
{
tBTA_GATTC_SERV *p_tcb = &bta_gattc_cb.known_server[0],
*p_recycle = NULL;
BOOLEAN found = FALSE;
UINT8 i;
for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_tcb ++) {
if (!p_tcb->in_use) {
found = TRUE;
break;
} else if (!p_tcb->connected) {
p_recycle = p_tcb;
}
}
/* if not found, try to recycle one known device */
if (!found && !p_recycle) {
p_tcb = NULL;
}
else if (!found && p_recycle) {
p_tcb = p_recycle;
}
if (p_tcb != NULL)
{
if (p_tcb->p_srvc_cache != NULL) {
list_free(p_tcb->p_srvc_cache);
p_tcb->p_srvc_cache = NULL;
}
osi_free(p_tcb->p_srvc_list);
p_tcb->p_srvc_list = NULL;
//osi_free_and_reset((void **)&p_tcb->p_srvc_list);
memset(p_tcb, 0 , sizeof(tBTA_GATTC_SERV));
p_tcb->in_use = TRUE;
bdcpy(p_tcb->server_bda, bda);
}
return p_tcb;
}
static BOOLEAN bta_gattc_has_prepare_command_in_queue(tBTA_GATTC_CLCB *p_clcb)
{
assert(p_clcb != NULL);
for(list_node_t *sn = list_begin(p_clcb->p_cmd_list);
sn != list_end(p_clcb->p_cmd_list); sn = list_next(sn)) {
tBTA_GATTC_DATA *cmd_data = (tBTA_GATTC_DATA *)list_node(sn);
if (cmd_data != NULL && ((cmd_data->hdr.event == BTA_GATTC_API_WRITE_EVT &&
cmd_data->api_write.write_type == BTA_GATTC_WRITE_PREPARE) ||
cmd_data->hdr.event == BTA_GATTC_API_EXEC_EVT)) {
return TRUE;
}
}
return FALSE;
}
/*******************************************************************************
**
** Function bta_gattc_enqueue
**
** Description enqueue a client request in clcb.
**
** Returns success or failure.
**
*******************************************************************************/
BOOLEAN bta_gattc_enqueue(tBTA_GATTC_CLCB *p_clcb, tBTA_GATTC_DATA *p_data)
{
tBTA_GATTC cb_data = {0};
if (p_clcb->p_q_cmd == NULL) {
p_clcb->p_q_cmd = p_data;
return TRUE;
} else if ((p_data->hdr.event == BTA_GATTC_API_WRITE_EVT &&
p_data->api_write.write_type == BTA_GATTC_WRITE_PREPARE) &&
((p_clcb->p_q_cmd->hdr.event == BTA_GATTC_API_WRITE_EVT &&
p_clcb->p_q_cmd->api_write.write_type == BTA_GATTC_WRITE_PREPARE) ||
bta_gattc_has_prepare_command_in_queue(p_clcb))) {
APPL_TRACE_DEBUG("%s(), prepare offset = %d", __func__, p_data->api_write.offset);
cb_data.write.status = BTA_GATT_CONGESTED;
cb_data.write.handle = p_data->api_write.handle;
cb_data.write.conn_id = p_clcb->bta_conn_id;
cb_data.write.offset = p_data->api_write.offset;
/* write complete, callback */
if (p_clcb->p_rcb->p_cback != NULL) {
( *p_clcb->p_rcb->p_cback)(BTA_GATTC_PREP_WRITE_EVT, (tBTA_GATTC *)&cb_data);
}
return FALSE;
}
else if (p_clcb->p_cmd_list) {
UINT16 len = 0;
tBTA_GATTC_DATA *cmd_data = NULL;
if (list_length(p_clcb->p_cmd_list) >= GATTC_COMMAND_QUEUE_SIZE_MAX) {
APPL_TRACE_ERROR("%s(), the gattc command queue is full.", __func__);
cb_data.status = GATT_BUSY;
cb_data.queue_full.conn_id = p_clcb->bta_conn_id;
cb_data.queue_full.is_full = TRUE;
p_clcb->is_full = TRUE;
if (p_clcb->p_rcb->p_cback != NULL) {
( *p_clcb->p_rcb->p_cback)(BTA_GATTC_QUEUE_FULL_EVT, (tBTA_GATTC *)&cb_data);
}
return FALSE;
}
if (p_data->hdr.event == BTA_GATTC_API_WRITE_EVT) {
len = p_data->api_write.len;
if ((cmd_data = (tBTA_GATTC_DATA *)osi_malloc(sizeof(tBTA_GATTC_DATA) + len)) != NULL) {
memset(cmd_data, 0, sizeof(tBTA_GATTC_DATA) + len);
memcpy(cmd_data, p_data, sizeof(tBTA_GATTC_DATA));
cmd_data->api_write.p_value = (UINT8 *)(cmd_data + 1);
memcpy(cmd_data->api_write.p_value, p_data->api_write.p_value, len);
} else {
APPL_TRACE_ERROR("%s(), line = %d, alloc fail, no memory.", __func__, __LINE__);
return FALSE;
}
} else {
if ((cmd_data = (tBTA_GATTC_DATA *)osi_malloc(sizeof(tBTA_GATTC_DATA))) != NULL) {
memset(cmd_data, 0, sizeof(tBTA_GATTC_DATA));
memcpy(cmd_data, p_data, sizeof(tBTA_GATTC_DATA));
} else {
APPL_TRACE_ERROR("%s(), line = %d, alloc fail, no memory.", __func__, __LINE__);
return FALSE;
}
}
//store the command to the command list.
list_append(p_clcb->p_cmd_list, (void *)cmd_data);
return FALSE;
}
return FALSE;
}
/*******************************************************************************
**
** Function bta_gattc_check_notif_registry
**
** Description check if the service notificaition has been registered.
**
** Returns
**
*******************************************************************************/
BOOLEAN bta_gattc_check_notif_registry(tBTA_GATTC_RCB *p_clreg, tBTA_GATTC_SERV *p_srcb,
tBTA_GATTC_NOTIFY *p_notify)
{
UINT8 i;
for (i = 0 ; i < BTA_GATTC_NOTIF_REG_MAX; i ++)
{
if (p_clreg->notif_reg[i].in_use &&
bdcmp(p_clreg->notif_reg[i].remote_bda, p_srcb->server_bda) == 0 &&
p_clreg->notif_reg[i].handle == p_notify->handle)
{
APPL_TRACE_DEBUG("Notification registered!");
return TRUE;
}
}
return FALSE;
}
/*******************************************************************************
**
** Function bta_gattc_clear_notif_registration
**
** Description Clear up the notification registration information by BD_ADDR.
** Where handle is between start_handle and end_handle, and
** start_handle and end_handle are boundaries of service
** containing characteristic.
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_clear_notif_registration(tBTA_GATTC_SERV *p_srcb, UINT16 conn_id,
UINT16 start_handle, UINT16 end_handle)
{
BD_ADDR remote_bda;
tBTA_GATTC_IF gatt_if;
tBTA_GATTC_RCB *p_clrcb ;
UINT8 i;
tGATT_TRANSPORT transport;
UINT16 handle = 0;
if (GATT_GetConnectionInfor(conn_id, &gatt_if, remote_bda, &transport)) {
if ((p_clrcb = bta_gattc_cl_get_regcb(gatt_if)) != NULL) {
for (i = 0 ; i < BTA_GATTC_NOTIF_REG_MAX; i ++) {
if (p_clrcb->notif_reg[i].in_use &&
!bdcmp(p_clrcb->notif_reg[i].remote_bda, remote_bda))
{
/* It's enough to get service or characteristic handle, as
* clear boundaries are always around service.
*/
handle = p_clrcb->notif_reg[i].handle;
if (handle >= start_handle && handle <= end_handle) {
memset(&p_clrcb->notif_reg[i], 0, sizeof(tBTA_GATTC_NOTIF_REG));
}
}
}
}
} else {
APPL_TRACE_ERROR("can not clear indication/notif registration for unknown app");
}
return;
}
/*******************************************************************************
**
** Function bta_gattc_clear_notif_registration_by_bda
**
** Description Clear up the notification registration information by BD_ADDR.
**
**
** Returns None.
**
*******************************************************************************/
void bta_gattc_clear_notif_registration_by_bda(tBTA_GATTC_RCB *p_clrcb, BD_ADDR remote_bda)
{
if(p_clrcb == NULL) {
return;
}
for (uint8_t i = 0 ; i < BTA_GATTC_NOTIF_REG_MAX; i ++) {
if (p_clrcb->notif_reg[i].in_use &&
!bdcmp(p_clrcb->notif_reg[i].remote_bda, remote_bda))
{
memset(&p_clrcb->notif_reg[i], 0, sizeof(tBTA_GATTC_NOTIF_REG));
}
}
}
/*******************************************************************************
**
** Function bta_gattc_mark_bg_conn
**
** Description mark background connection status when a bg connection is initiated
** or terminated.
**
** Returns TRUE if success; FALSE otherwise.
**
*******************************************************************************/
BOOLEAN bta_gattc_mark_bg_conn (tBTA_GATTC_IF client_if, BD_ADDR_PTR remote_bda_ptr,
BOOLEAN add, BOOLEAN is_listen)
{
tBTA_GATTC_BG_TCK *p_bg_tck = &bta_gattc_cb.bg_track[0];
UINT8 i = 0;
tBTA_GATTC_CIF_MASK *p_cif_mask;
for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_bg_tck ++) {
if (p_bg_tck->in_use &&
((remote_bda_ptr != NULL && bdcmp(p_bg_tck->remote_bda, remote_bda_ptr) == 0) ||
(remote_bda_ptr == NULL && bdcmp(p_bg_tck->remote_bda, dummy_bda) == 0))) {
p_cif_mask = is_listen ? &p_bg_tck->cif_adv_mask : &p_bg_tck->cif_mask;
if (add)
/* mask on the cif bit */
{
*p_cif_mask |= (1 << (client_if - 1));
} else {
if (client_if != 0) {
*p_cif_mask &= (~(1 << (client_if - 1)));
} else {
*p_cif_mask = 0;
}
}
/* no BG connection for this device, make it available */
if (p_bg_tck->cif_mask == 0 && p_bg_tck->cif_adv_mask == 0) {
memset(p_bg_tck, 0, sizeof(tBTA_GATTC_BG_TCK));
}
return TRUE;
}
}
if (!add) {
if (remote_bda_ptr) {
#if (!CONFIG_BT_STACK_NO_LOG)
char bdstr[18] = {0};
#endif
APPL_TRACE_WARNING("%s unable to find the bg connection mask for: %s", __func__,
bdaddr_to_string((bt_bdaddr_t *)remote_bda_ptr, bdstr, sizeof(bdstr)));
}
return FALSE;
} else { /* adding a new device mask */
for (i = 0, p_bg_tck = &bta_gattc_cb.bg_track[0];
i < BTA_GATTC_KNOWN_SR_MAX; i ++, p_bg_tck ++) {
if (!p_bg_tck->in_use) {
p_bg_tck->in_use = TRUE;
if (remote_bda_ptr) {
bdcpy(p_bg_tck->remote_bda, remote_bda_ptr);
} else {
bdcpy(p_bg_tck->remote_bda, dummy_bda);
}
p_cif_mask = is_listen ? &p_bg_tck->cif_adv_mask : &p_bg_tck->cif_mask;
*p_cif_mask = (1 << (client_if - 1));
return TRUE;
}
}
APPL_TRACE_ERROR("no available space to mark the bg connection status");
return FALSE;
}
}
/*******************************************************************************
**
** Function bta_gattc_check_bg_conn
**
** Description check if this is a background connection background connection.
**
** Returns TRUE if success; FALSE otherwise.
**
*******************************************************************************/
BOOLEAN bta_gattc_check_bg_conn (tBTA_GATTC_IF client_if, BD_ADDR remote_bda, UINT8 role)
{
tBTA_GATTC_BG_TCK *p_bg_tck = &bta_gattc_cb.bg_track[0];
UINT8 i = 0;
BOOLEAN is_bg_conn = FALSE;
for (i = 0; i < BTA_GATTC_KNOWN_SR_MAX && !is_bg_conn; i ++, p_bg_tck ++) {
if (p_bg_tck->in_use &&
(bdcmp(p_bg_tck->remote_bda, remote_bda) == 0 ||
bdcmp(p_bg_tck->remote_bda, dummy_bda) == 0)) {
if (((p_bg_tck->cif_mask & (1 << (client_if - 1))) != 0) &&
role == HCI_ROLE_MASTER) {
is_bg_conn = TRUE;
}
if (((p_bg_tck->cif_adv_mask & (1 << (client_if - 1))) != 0) &&
role == HCI_ROLE_SLAVE) {
is_bg_conn = TRUE;
}
}
}
return is_bg_conn;
}
/*******************************************************************************
**
** Function bta_gattc_send_open_cback
**
** Description send open callback
**
** Returns
**
*******************************************************************************/
void bta_gattc_send_open_cback( tBTA_GATTC_RCB *p_clreg, tBTA_GATT_STATUS status,
BD_ADDR remote_bda, UINT16 conn_id,
tBTA_TRANSPORT transport, UINT16 mtu)
{
tBTA_GATTC cb_data;
if (p_clreg->p_cback) {
memset(&cb_data, 0, sizeof(tBTA_GATTC));
cb_data.open.status = status;
cb_data.open.client_if = p_clreg->client_if;
cb_data.open.conn_id = conn_id;
cb_data.open.mtu = mtu;
cb_data.open.transport = transport;
bdcpy(cb_data.open.remote_bda, remote_bda);
(*p_clreg->p_cback)(BTA_GATTC_OPEN_EVT, &cb_data);
}
}
/*******************************************************************************
**
** Function bta_gattc_send_connect_cback
**
** Description send connect callback
**
** Returns
**
*******************************************************************************/
void bta_gattc_send_connect_cback( tBTA_GATTC_RCB *p_clreg, BD_ADDR remote_bda, UINT16 conn_id,
tBTA_GATT_CONN_PARAMS conn_params, UINT8 link_role, UINT8 ble_addr_type, UINT16 conn_handle)
{
tBTA_GATTC cb_data;
if (p_clreg->p_cback) {
memset(&cb_data, 0, sizeof(tBTA_GATTC));
cb_data.connect.client_if = p_clreg->client_if;
cb_data.connect.conn_id = conn_id;
cb_data.connect.link_role = link_role;
cb_data.connect.conn_params.interval = conn_params.interval;
cb_data.connect.conn_params.latency = conn_params.latency;
cb_data.connect.conn_params.timeout = conn_params.timeout;
bdcpy(cb_data.connect.remote_bda, remote_bda);
cb_data.connect.ble_addr_type = ble_addr_type;
cb_data.connect.conn_handle = conn_handle;
(*p_clreg->p_cback)(BTA_GATTC_CONNECT_EVT, &cb_data);
}
}
/*******************************************************************************
**
** Function bta_gattc_send_disconnect_cback
**
** Description send disconnect callback
**
** Returns
**
*******************************************************************************/
void bta_gattc_send_disconnect_cback( tBTA_GATTC_RCB *p_clreg, tGATT_DISCONN_REASON reason,
BD_ADDR remote_bda, UINT16 conn_id)
{
tBTA_GATTC cb_data;
if (p_clreg->p_cback) {
memset(&cb_data, 0, sizeof(tBTA_GATTC));
cb_data.disconnect.reason = reason;
cb_data.disconnect.client_if = p_clreg->client_if;
cb_data.disconnect.conn_id = conn_id;
bdcpy(cb_data.disconnect.remote_bda, remote_bda);
(*p_clreg->p_cback)(BTA_GATTC_DISCONNECT_EVT, &cb_data);
}
}
/*******************************************************************************
**
** Function bta_gattc_conn_alloc
**
** Description allocate connection tracking spot
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CONN *bta_gattc_conn_alloc(BD_ADDR remote_bda)
{
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_GATT_DEBUG == TRUE
APPL_TRACE_DEBUG("bta_gattc_conn_alloc: found conn_track[%d] available", i_conn);
#endif
p_conn->in_use = TRUE;
bdcpy(p_conn->remote_bda, remote_bda);
return p_conn;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_conn_find
**
** Description allocate connection tracking spot
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CONN *bta_gattc_conn_find(BD_ADDR remote_bda)
{
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 && bdcmp(remote_bda, p_conn->remote_bda) == 0) {
#if BTA_GATT_DEBUG == TRUE
APPL_TRACE_DEBUG("bta_gattc_conn_find: found conn_track[%d] matched", i_conn);
#endif
return p_conn;
}
}
return NULL;
}
/*******************************************************************************
**
** Function bta_gattc_conn_find_alloc
**
** Description find or allocate connection tracking spot
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CONN *bta_gattc_conn_find_alloc(BD_ADDR remote_bda)
{
tBTA_GATTC_CONN *p_conn = bta_gattc_conn_find (remote_bda);
if (p_conn == NULL) {
p_conn = bta_gattc_conn_alloc(remote_bda);
}
return p_conn;
}
/*******************************************************************************
**
** Function bta_gattc_conn_dealloc
**
** Description de-allocate connection tracking spot
**
** Returns pointer to the clcb
**
*******************************************************************************/
BOOLEAN bta_gattc_conn_dealloc(BD_ADDR remote_bda)
{
tBTA_GATTC_CONN *p_conn = bta_gattc_conn_find (remote_bda);
if (p_conn != NULL) {
p_conn->in_use = FALSE;
memset(p_conn->remote_bda, 0, BD_ADDR_LEN);
return TRUE;
}
return FALSE;
}
/*******************************************************************************
**
** Function bta_gattc_find_int_conn_clcb
**
** Description try to locate a clcb when an internal connection event arrives.
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CLCB *bta_gattc_find_int_conn_clcb(tBTA_GATTC_DATA *p_msg)
{
tBTA_GATTC_CLCB *p_clcb = NULL;
if (p_msg->int_conn.role == HCI_ROLE_SLAVE) {
bta_gattc_conn_find_alloc(p_msg->int_conn.remote_bda);
}
/* try to locate a logic channel */
if ((p_clcb = bta_gattc_find_clcb_by_cif(p_msg->int_conn.client_if,
p_msg->int_conn.remote_bda,
p_msg->int_conn.transport)) == NULL) {
/* for a background connection or listening connection */
if (/*p_msg->int_conn.role == HCI_ROLE_SLAVE || */
bta_gattc_check_bg_conn(p_msg->int_conn.client_if,
p_msg->int_conn.remote_bda,
p_msg->int_conn.role)) {
/* allocate a new channel */
p_clcb = bta_gattc_clcb_alloc(p_msg->int_conn.client_if,
p_msg->int_conn.remote_bda,
p_msg->int_conn.transport);
}
}
return p_clcb;
}
/*******************************************************************************
**
** Function bta_gattc_find_int_disconn_clcb
**
** Description try to locate a clcb when an internal disconnect callback arrives.
**
** Returns pointer to the clcb
**
*******************************************************************************/
tBTA_GATTC_CLCB *bta_gattc_find_int_disconn_clcb(tBTA_GATTC_DATA *p_msg)
{
tBTA_GATTC_CLCB *p_clcb = NULL;
bta_gattc_conn_dealloc(p_msg->int_conn.remote_bda);
if ((p_clcb = bta_gattc_find_clcb_by_conn_id(p_msg->int_conn.hdr.layer_specific)) == NULL) {
/* connection attempt failed, send connection callback event */
p_clcb = bta_gattc_find_clcb_by_cif(p_msg->int_conn.client_if,
p_msg->int_conn.remote_bda,
p_msg->int_conn.transport);
}
if (p_clcb == NULL) {
APPL_TRACE_DEBUG(" disconnection ID: [%d] not used by BTA",
p_msg->int_conn.hdr.layer_specific);
}
return p_clcb;
}
void bta_to_btif_uuid(bt_uuid_t *p_dest, tBT_UUID *p_src)
{
int i = 0;
if (p_src->len == LEN_UUID_16 || p_src->len == LEN_UUID_32)
{
for(i=0; i != 16; ++i) {
p_dest->uu[i] = base_uuid[i];
}
}
switch (p_src->len)
{
case 0:
break;
case LEN_UUID_16:
p_dest->uu[12] = p_src->uu.uuid16 & 0xff;
p_dest->uu[13] = (p_src->uu.uuid16 >> 8) & 0xff;
break;
case LEN_UUID_32:
p_dest->uu[12] = p_src->uu.uuid16 & 0xff;
p_dest->uu[13] = (p_src->uu.uuid16 >> 8) & 0xff;
p_dest->uu[14] = (p_src->uu.uuid32 >> 16) & 0xff;
p_dest->uu[15] = (p_src->uu.uuid32 >> 24) & 0xff;
break;
case LEN_UUID_128:
for(i=0; i != 16; ++i)
p_dest->uu[i] = p_src->uu.uuid128[i];
break;
default:
APPL_TRACE_ERROR("%s: Unknown UUID length %d!", __FUNCTION__, p_src->len);
break;
}
}
#endif /* BTA_GATT_INCLUDED */
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