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 25#if( defined BLE_INCLUDED ) && (BLE_INCLUDED == TRUE) 26#if( defined BTA_GATT_INCLUDED ) && (BTA_GATT_INCLUDED == TRUE) 27 28#define GATT_CACHE_PREFIX "/data/misc/bluedroid/gatt_cache_" 29 30static FILE* sCacheFD = 0; 31 32static void getFilename(char *buffer, BD_ADDR bda) 33{ 34 sprintf(buffer, "%s%02x%02x%02x%02x%02x%02x", GATT_CACHE_PREFIX 35 , bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]); 36} 37 38static void cacheClose() 39{ 40 if (sCacheFD != 0) 41 { 42 fclose(sCacheFD); 43 sCacheFD = 0; 44 } 45} 46 47static bool cacheOpen(BD_ADDR bda, bool to_save) 48{ 49 char fname[255] = {0}; 50 getFilename(fname, bda); 51 52 cacheClose(); 53 sCacheFD = fopen(fname, to_save ? "w" : "r"); 54 55 return (sCacheFD != 0); 56} 57 58static void cacheReset(BD_ADDR bda) 59{ 60 char fname[255] = {0}; 61 getFilename(fname, bda); 62 unlink(fname); 63} 64 65 66/***************************************************************************** 67** Function Declarations 68*****************************************************************************/ 69 70/******************************************************************************* 71** 72** Function bta_gattc_co_cache_open 73** 74** Description This callout function is executed by GATTC when a GATT server 75** cache is ready to be sent. 76** 77** Parameter server_bda: server bd address of this cache belongs to 78** evt: call in event to be passed in when cache open is done. 79** conn_id: connection ID of this cache operation attach to. 80** to_save: open cache to save or to load. 81** 82** Returns void. 83** 84*******************************************************************************/ 85void bta_gattc_co_cache_open(BD_ADDR server_bda, UINT16 evt, UINT16 conn_id, BOOLEAN to_save) 86{ 87 /* open NV cache and send call in */ 88 tBTA_GATT_STATUS status = BTA_GATT_OK; 89 if (!cacheOpen(server_bda, to_save)) 90 status = BTA_GATT_ERROR; 91 92 BTIF_TRACE_DEBUG("%s() - status=%d", __FUNCTION__, status); 93 bta_gattc_ci_cache_open(server_bda, evt, status, conn_id); 94} 95 96/******************************************************************************* 97** 98** Function bta_gattc_co_cache_load 99** 100** Description This callout function is executed by GATT when server cache 101** is required to load. 102** 103** Parameter server_bda: server bd address of this cache belongs to 104** evt: call in event to be passed in when cache save is done. 105** num_attr: number of attribute to be save. 106** attr_index: starting attribute index of the save operation. 107** conn_id: connection ID of this cache operation attach to. 108** Returns 109** 110*******************************************************************************/ 111void bta_gattc_co_cache_load(BD_ADDR server_bda, UINT16 evt, UINT16 start_index, UINT16 conn_id) 112{ 113 UINT16 num_attr = 0; 114 tBTA_GATTC_NV_ATTR attr[BTA_GATTC_NV_LOAD_MAX]; 115 tBTA_GATT_STATUS status = BTA_GATT_ERROR; 116 117 if (sCacheFD && (0 == fseek(sCacheFD, start_index * sizeof(tBTA_GATTC_NV_ATTR), SEEK_SET))) 118 { 119 num_attr = fread(attr, sizeof(tBTA_GATTC_NV_ATTR), BTA_GATTC_NV_LOAD_MAX, sCacheFD); 120 status = (num_attr < BTA_GATTC_NV_LOAD_MAX ? BTA_GATT_OK : BTA_GATT_MORE); 121 } 122 123 BTIF_TRACE_DEBUG("%s() - sCacheFD=%p, start_index=%d, read=%d, status=%d", 124 __FUNCTION__, sCacheFD, start_index, num_attr, status); 125 bta_gattc_ci_cache_load(server_bda, evt, num_attr, attr, status, conn_id); 126} 127 128/******************************************************************************* 129** 130** Function bta_gattc_co_cache_save 131** 132** Description This callout function is executed by GATT when a server cache 133** is available to save. 134** 135** Parameter server_bda: server bd address of this cache belongs to 136** evt: call in event to be passed in when cache save is done. 137** num_attr: number of attribute to be save. 138** p_attr: pointer to the list of attributes to save. 139** attr_index: starting attribute index of the save operation. 140** conn_id: connection ID of this cache operation attach to. 141** Returns 142** 143*******************************************************************************/ 144void bta_gattc_co_cache_save (BD_ADDR server_bda, UINT16 evt, UINT16 num_attr, 145 tBTA_GATTC_NV_ATTR *p_attr_list, UINT16 attr_index, UINT16 conn_id) 146{ 147 tBTA_GATT_STATUS status = BTA_GATT_OK; 148 UNUSED(attr_index); 149 150 if (sCacheFD != 0) 151 { 152 int num = fwrite(p_attr_list, sizeof(tBTA_GATTC_NV_ATTR), num_attr, sCacheFD); 153 BTIF_TRACE_DEBUG("%s() wrote %d", __FUNCTION__, num); 154 } 155 156 bta_gattc_ci_cache_save(server_bda, evt, status, conn_id); 157} 158 159/******************************************************************************* 160** 161** Function bta_gattc_co_cache_close 162** 163** Description This callout function is executed by GATTC when a GATT server 164** cache is written completely. 165** 166** Parameter server_bda: server bd address of this cache belongs to 167** conn_id: connection ID of this cache operation attach to. 168** 169** Returns void. 170** 171*******************************************************************************/ 172void bta_gattc_co_cache_close(BD_ADDR server_bda, UINT16 conn_id) 173{ 174 UNUSED(server_bda); 175 UNUSED(conn_id); 176 177 cacheClose(); 178 179 /* close NV when server cache is done saving or loading, 180 does not need to do anything for now on Insight */ 181 182 BTIF_TRACE_DEBUG("%s()", __FUNCTION__); 183} 184 185/******************************************************************************* 186** 187** Function bta_gattc_co_cache_reset 188** 189** Description This callout function is executed by GATTC to reset cache in 190** application 191** 192** Parameter server_bda: server bd address of this cache belongs to 193** 194** Returns void. 195** 196*******************************************************************************/ 197void bta_gattc_co_cache_reset(BD_ADDR server_bda) 198{ 199 BTIF_TRACE_DEBUG("%s()", __FUNCTION__); 200 cacheReset(server_bda); 201} 202 203#endif 204#endif 205 206