/******************************************************************************
*
* Copyright (C) 2009-2013 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.
*
******************************************************************************/
#ifdef BT_SUPPORT_NVM
#include <stdio.h>
#include <unistd.h>
#endif /* BT_SUPPORT_NVM */
#include "bta_gattc_co.h"
#include "bta_gattc_ci.h"
// #include "btif_util.h"
#include "btm_int.h"
#if( defined BLE_INCLUDED ) && (BLE_INCLUDED == TRUE)
#if( defined BTA_GATT_INCLUDED ) && (GATTC_INCLUDED == TRUE)
#define GATT_CACHE_PREFIX "/data/misc/bluedroid/gatt_cache_"
#ifdef BT_SUPPORT_NVM
static FILE *sCacheFD = 0;
static void getFilename(char *buffer, BD_ADDR bda)
{
sprintf(buffer, "%s%02x%02x%02x%02x%02x%02x", GATT_CACHE_PREFIX
, bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
}
static void cacheClose()
{
if (sCacheFD != 0) {
fclose(sCacheFD);
sCacheFD = 0;
}
}
static bool cacheOpen(BD_ADDR bda, bool to_save)
{
char fname[255] = {0};
getFilename(fname, bda);
cacheClose();
sCacheFD = fopen(fname, to_save ? "w" : "r");
return (sCacheFD != 0);
}
static void cacheReset(BD_ADDR bda)
{
char fname[255] = {0};
getFilename(fname, bda);
unlink(fname);
}
#endif /* BT_SUPPORT_NVM */
/*****************************************************************************
** Function Declarations
*****************************************************************************/
/*******************************************************************************
**
** Function bta_gattc_co_cache_open
**
** Description This callout function is executed by GATTC when a GATT server
** cache is ready to be sent.
**
** Parameter server_bda: server bd address of this cache belongs to
** evt: call in event to be passed in when cache open is done.
** conn_id: connection ID of this cache operation attach to.
** to_save: open cache to save or to load.
**
** Returns void.
**
*******************************************************************************/
void bta_gattc_co_cache_open(BD_ADDR server_bda, UINT16 evt, UINT16 conn_id, BOOLEAN to_save)
{
#ifdef BT_SUPPORT_NVM
/* open NV cache and send call in */
tBTA_GATT_STATUS status = BTA_GATT_OK;
if (!btm_sec_is_a_bonded_dev(server_bda) || !cacheOpen(server_bda, to_save)) {
status = BTA_GATT_ERROR;
}
BTIF_TRACE_DEBUG("%s() - status=%d", __FUNCTION__, status);
bta_gattc_ci_cache_open(server_bda, evt, status, conn_id);
#else
bta_gattc_ci_cache_open(server_bda, evt, BTA_GATT_ERROR, conn_id);
#endif /* BT_SUPPORT_NVM */
}
/*******************************************************************************
**
** Function bta_gattc_co_cache_load
**
** Description This callout function is executed by GATT when server cache
** is required to load.
**
** Parameter server_bda: server bd address of this cache belongs to
** evt: call in event to be passed in when cache save is done.
** num_attr: number of attribute to be save.
** attr_index: starting attribute index of the save operation.
** conn_id: connection ID of this cache operation attach to.
** Returns
**
*******************************************************************************/
void bta_gattc_co_cache_load(BD_ADDR server_bda, UINT16 evt, UINT16 start_index, UINT16 conn_id)
{
UINT16 num_attr = 0;
tBTA_GATTC_NV_ATTR attr[BTA_GATTC_NV_LOAD_MAX];
tBTA_GATT_STATUS status = BTA_GATT_ERROR;
#ifdef BT_SUPPORT_NVM
if (sCacheFD && (0 == fseek(sCacheFD, start_index * sizeof(tBTA_GATTC_NV_ATTR), SEEK_SET))) {
num_attr = fread(attr, sizeof(tBTA_GATTC_NV_ATTR), BTA_GATTC_NV_LOAD_MAX, sCacheFD);
status = (num_attr < BTA_GATTC_NV_LOAD_MAX ? BTA_GATT_OK : BTA_GATT_MORE);
}
BTIF_TRACE_DEBUG("%s() - sCacheFD=%p, start_index=%d, read=%d, status=%d",
__FUNCTION__, sCacheFD, start_index, num_attr, status);
#endif /* BT_SUPPORT_NVM */
bta_gattc_ci_cache_load(server_bda, evt, num_attr, attr, status, conn_id);
}
/*******************************************************************************
**
** Function bta_gattc_co_cache_save
**
** Description This callout function is executed by GATT when a server cache
** is available to save.
**
** Parameter server_bda: server bd address of this cache belongs to
** evt: call in event to be passed in when cache save is done.
** num_attr: number of attribute to be save.
** p_attr: pointer to the list of attributes to save.
** attr_index: starting attribute index of the save operation.
** conn_id: connection ID of this cache operation attach to.
** Returns
**
*******************************************************************************/
void bta_gattc_co_cache_save (BD_ADDR server_bda, UINT16 evt, UINT16 num_attr,
tBTA_GATTC_NV_ATTR *p_attr_list, UINT16 attr_index, UINT16 conn_id)
{
tBTA_GATT_STATUS status = BTA_GATT_OK;
UNUSED(attr_index);
#ifdef BT_SUPPORT_NVM
if (sCacheFD != 0) {
int num = fwrite(p_attr_list, sizeof(tBTA_GATTC_NV_ATTR), num_attr, sCacheFD);
BTIF_TRACE_DEBUG("%s() wrote %d", __FUNCTION__, num);
}
#endif /* BT_SUPPORT_NVM */
bta_gattc_ci_cache_save(server_bda, evt, status, conn_id);
}
/*******************************************************************************
**
** Function bta_gattc_co_cache_close
**
** Description This callout function is executed by GATTC when a GATT server
** cache is written completely.
**
** Parameter server_bda: server bd address of this cache belongs to
** conn_id: connection ID of this cache operation attach to.
**
** Returns void.
**
*******************************************************************************/
void bta_gattc_co_cache_close(BD_ADDR server_bda, UINT16 conn_id)
{
UNUSED(server_bda);
UNUSED(conn_id);
#ifdef BT_SUPPORT_NVM
cacheClose();
#endif /* BT_SUPPORT_NVM */
/* close NV when server cache is done saving or loading,
does not need to do anything for now on Insight */
BTIF_TRACE_DEBUG("%s()", __FUNCTION__);
}
/*******************************************************************************
**
** Function bta_gattc_co_cache_reset
**
** Description This callout function is executed by GATTC to reset cache in
** application
**
** Parameter server_bda: server bd address of this cache belongs to
**
** Returns void.
**
*******************************************************************************/
void bta_gattc_co_cache_reset(BD_ADDR server_bda)
{
BTIF_TRACE_DEBUG("%s()", __FUNCTION__);
#ifdef BT_SUPPORT_NVM
cacheReset(server_bda);
#endif /* BT_SUPPORT_NVM */
}
#endif /* #if( defined BLE_INCLUDED ) && (BLE_INCLUDED == TRUE) */
#endif /* #if( defined BTA_GATT_INCLUDED ) && (BTA_GATT_INCLUDED == TRUE) */