1/****************************************************************************** 2 * 3 * Copyright (C) 2009-2013 Broadcom Corporation 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 20#include "gki.h" 21#include "bta_gattc_co.h" 22#include "bta_gattc_ci.h" 23#include "btif_util.h" 24#include "btm_int.h" 25 26#if( defined BLE_INCLUDED ) && (BLE_INCLUDED == TRUE) 27#if( defined BTA_GATT_INCLUDED ) && (BTA_GATT_INCLUDED == TRUE) 28 29#define GATT_CACHE_PREFIX "/data/misc/bluedroid/gatt_cache_" 30 31static FILE* sCacheFD = 0; 32 33static void getFilename(char *buffer, BD_ADDR bda) 34{ 35 sprintf(buffer, "%s%02x%02x%02x%02x%02x%02x", GATT_CACHE_PREFIX 36 , bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]); 37} 38 39static void cacheClose() 40{ 41 if (sCacheFD != 0) 42 { 43 fclose(sCacheFD); 44 sCacheFD = 0; 45 } 46} 47 48static bool cacheOpen(BD_ADDR bda, bool to_save) 49{ 50 char fname[255] = {0}; 51 getFilename(fname, bda); 52 53 cacheClose(); 54 sCacheFD = fopen(fname, to_save ? "w" : "r"); 55 56 return (sCacheFD != 0); 57} 58 59static void cacheReset(BD_ADDR bda) 60{ 61 char fname[255] = {0}; 62 getFilename(fname, bda); 63 unlink(fname); 64} 65 66 67/***************************************************************************** 68** Function Declarations 69*****************************************************************************/ 70 71/******************************************************************************* 72** 73** Function bta_gattc_co_cache_open 74** 75** Description This callout function is executed by GATTC when a GATT server 76** cache is ready to be sent. 77** 78** Parameter server_bda: server bd address of this cache belongs to 79** evt: call in event to be passed in when cache open is done. 80** conn_id: connection ID of this cache operation attach to. 81** to_save: open cache to save or to load. 82** 83** Returns void. 84** 85*******************************************************************************/ 86void bta_gattc_co_cache_open(BD_ADDR server_bda, UINT16 evt, UINT16 conn_id, BOOLEAN to_save) 87{ 88 /* open NV cache and send call in */ 89 tBTA_GATT_STATUS status = BTA_GATT_OK; 90 if (!btm_sec_is_a_bonded_dev(server_bda) || !cacheOpen(server_bda, to_save)) 91 status = BTA_GATT_ERROR; 92 93 BTIF_TRACE_DEBUG("%s() - status=%d", __FUNCTION__, status); 94 bta_gattc_ci_cache_open(server_bda, evt, status, conn_id); 95} 96 97/******************************************************************************* 98** 99** Function bta_gattc_co_cache_load 100** 101** Description This callout function is executed by GATT when server cache 102** is required to load. 103** 104** Parameter server_bda: server bd address of this cache belongs to 105** evt: call in event to be passed in when cache save is done. 106** num_attr: number of attribute to be save. 107** attr_index: starting attribute index of the save operation. 108** conn_id: connection ID of this cache operation attach to. 109** Returns 110** 111*******************************************************************************/ 112void bta_gattc_co_cache_load(BD_ADDR server_bda, UINT16 evt, UINT16 start_index, UINT16 conn_id) 113{ 114 UINT16 num_attr = 0; 115 tBTA_GATTC_NV_ATTR attr[BTA_GATTC_NV_LOAD_MAX]; 116 tBTA_GATT_STATUS status = BTA_GATT_ERROR; 117 118 if (sCacheFD && (0 == fseek(sCacheFD, start_index * sizeof(tBTA_GATTC_NV_ATTR), SEEK_SET))) 119 { 120 num_attr = fread(attr, sizeof(tBTA_GATTC_NV_ATTR), BTA_GATTC_NV_LOAD_MAX, sCacheFD); 121 status = (num_attr < BTA_GATTC_NV_LOAD_MAX ? BTA_GATT_OK : BTA_GATT_MORE); 122 } 123 124 BTIF_TRACE_DEBUG("%s() - sCacheFD=%p, start_index=%d, read=%d, status=%d", 125 __FUNCTION__, sCacheFD, start_index, num_attr, status); 126 bta_gattc_ci_cache_load(server_bda, evt, num_attr, attr, status, conn_id); 127} 128 129/******************************************************************************* 130** 131** Function bta_gattc_co_cache_save 132** 133** Description This callout function is executed by GATT when a server cache 134** is available to save. 135** 136** Parameter server_bda: server bd address of this cache belongs to 137** evt: call in event to be passed in when cache save is done. 138** num_attr: number of attribute to be save. 139** p_attr: pointer to the list of attributes to save. 140** attr_index: starting attribute index of the save operation. 141** conn_id: connection ID of this cache operation attach to. 142** Returns 143** 144*******************************************************************************/ 145void bta_gattc_co_cache_save (BD_ADDR server_bda, UINT16 evt, UINT16 num_attr, 146 tBTA_GATTC_NV_ATTR *p_attr_list, UINT16 attr_index, UINT16 conn_id) 147{ 148 tBTA_GATT_STATUS status = BTA_GATT_OK; 149 UNUSED(attr_index); 150 151 if (sCacheFD != 0) 152 { 153 int num = fwrite(p_attr_list, sizeof(tBTA_GATTC_NV_ATTR), num_attr, sCacheFD); 154 BTIF_TRACE_DEBUG("%s() wrote %d", __FUNCTION__, num); 155 } 156 157 bta_gattc_ci_cache_save(server_bda, evt, status, conn_id); 158} 159 160/******************************************************************************* 161** 162** Function bta_gattc_co_cache_close 163** 164** Description This callout function is executed by GATTC when a GATT server 165** cache is written completely. 166** 167** Parameter server_bda: server bd address of this cache belongs to 168** conn_id: connection ID of this cache operation attach to. 169** 170** Returns void. 171** 172*******************************************************************************/ 173void bta_gattc_co_cache_close(BD_ADDR server_bda, UINT16 conn_id) 174{ 175 UNUSED(server_bda); 176 UNUSED(conn_id); 177 178 cacheClose(); 179 180 /* close NV when server cache is done saving or loading, 181 does not need to do anything for now on Insight */ 182 183 BTIF_TRACE_DEBUG("%s()", __FUNCTION__); 184} 185 186/******************************************************************************* 187** 188** Function bta_gattc_co_cache_reset 189** 190** Description This callout function is executed by GATTC to reset cache in 191** application 192** 193** Parameter server_bda: server bd address of this cache belongs to 194** 195** Returns void. 196** 197*******************************************************************************/ 198void bta_gattc_co_cache_reset(BD_ADDR server_bda) 199{ 200 BTIF_TRACE_DEBUG("%s()", __FUNCTION__); 201 cacheReset(server_bda); 202} 203 204#endif 205#endif 206 207