Hiroh Satoh / keyboard Featured

Dependencies:   BLE_API mbed-dev nRF51822

Committer:
cho45
Date:
Fri Aug 26 16:03:18 2016 +0000
Revision:
40:364deaa190fe
Parent:
39:b7889285c9ef
Child:
42:2c3be8694896
timeout ???????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cho45 6:f1c3ea8bc850 1 #include "mbed.h"
cho45 6:f1c3ea8bc850 2 #include "BLE.h"
cho45 6:f1c3ea8bc850 3 #include "KeyboardService.h"
cho45 6:f1c3ea8bc850 4 #include "BatteryService.h"
cho45 6:f1c3ea8bc850 5 #include "DeviceInformationService.h"
cho45 15:70bf079d3ee1 6 #include "DFUService.h"
cho45 6:f1c3ea8bc850 7 #include "HIDController_BLE.h"
cho45 6:f1c3ea8bc850 8
cho45 6:f1c3ea8bc850 9 static const char MODEL_NAME[] = "keyboard";
cho45 6:f1c3ea8bc850 10 static const char SERIAL_NUMBER[] = "X00000";
cho45 6:f1c3ea8bc850 11 static const char HARDWARE_REVISION[] = "0.1";
cho45 6:f1c3ea8bc850 12 static const char FIRMWARE_REVISION[] = "0.1";
cho45 6:f1c3ea8bc850 13 static const char SOFTWARE_REVISION[] = "0.0";
cho45 6:f1c3ea8bc850 14
cho45 6:f1c3ea8bc850 15 static const uint8_t DEVICE_NAME[] = "my keyboard";
cho45 6:f1c3ea8bc850 16 static const uint8_t SHORT_DEVICE_NAME[] = "kbd1";
cho45 6:f1c3ea8bc850 17
cho45 6:f1c3ea8bc850 18 static const bool ENABLE_BONDING = true;
cho45 6:f1c3ea8bc850 19 static const bool REQUIRE_MITM = true;
cho45 6:f1c3ea8bc850 20 static const uint8_t PASSKEY[6] = {'1','2','3','4','5','6'}; // must be 6-digits number
cho45 6:f1c3ea8bc850 21
cho45 6:f1c3ea8bc850 22 static const uint16_t uuid16_list[] = {
cho45 6:f1c3ea8bc850 23 GattService::UUID_HUMAN_INTERFACE_DEVICE_SERVICE,
cho45 6:f1c3ea8bc850 24 GattService::UUID_DEVICE_INFORMATION_SERVICE,
cho45 6:f1c3ea8bc850 25 GattService::UUID_BATTERY_SERVICE
cho45 6:f1c3ea8bc850 26 };
cho45 6:f1c3ea8bc850 27
cho45 6:f1c3ea8bc850 28 static KeyboardService* keyboardService;
cho45 6:f1c3ea8bc850 29 static BatteryService* batteryService;
cho45 6:f1c3ea8bc850 30 static DeviceInformationService* deviceInformationService;
cho45 15:70bf079d3ee1 31 static DFUService* dfuService;
cho45 6:f1c3ea8bc850 32
cho45 13:b0ffdf2012b9 33 static BLEProtocol::Address_t peerAddress;
cho45 27:7370b8994603 34
cho45 27:7370b8994603 35 static volatile Status_t controllerStatus;
cho45 13:b0ffdf2012b9 36
cho45 6:f1c3ea8bc850 37 static void onConnect(const Gap::ConnectionCallbackParams_t *params) {
cho45 13:b0ffdf2012b9 38 peerAddress.type = params->peerAddrType;
cho45 13:b0ffdf2012b9 39 memcpy(peerAddress.address, params->peerAddr, Gap::ADDR_LEN);
cho45 34:7da766a8aa96 40 // TODO whitelist に peerAddr が含まれていない場合 securitySetupCompletedCallback を待ってから CONNECTED にすべき
cho45 29:ec548c473d50 41 controllerStatus = CONNECTED;
cho45 6:f1c3ea8bc850 42 }
cho45 6:f1c3ea8bc850 43
cho45 6:f1c3ea8bc850 44 static void onDisconnect(const Gap::DisconnectionCallbackParams_t *params) {
cho45 27:7370b8994603 45 controllerStatus = DISCONNECTED;
cho45 39:b7889285c9ef 46 BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE);
cho45 39:b7889285c9ef 47 ble.gap().setAdvertisingInterval(20);
cho45 39:b7889285c9ef 48 // printf("set advertising timeout\r\n");
cho45 39:b7889285c9ef 49 ble.gap().setAdvertisingTimeout(30);
cho45 39:b7889285c9ef 50 ble.gap().startAdvertising();
cho45 6:f1c3ea8bc850 51 }
cho45 6:f1c3ea8bc850 52
cho45 6:f1c3ea8bc850 53 static void onTimeout(const Gap::TimeoutSource_t source) {
cho45 32:6c0f43fda460 54 controllerStatus = TIMEOUT;
cho45 6:f1c3ea8bc850 55 }
cho45 6:f1c3ea8bc850 56
cho45 6:f1c3ea8bc850 57 static void passkeyDisplayCallback(Gap::Handle_t handle, const SecurityManager::Passkey_t passkey) {
cho45 29:ec548c473d50 58 /*
cho45 6:f1c3ea8bc850 59 printf("Input passKey: ");
cho45 6:f1c3ea8bc850 60 for (unsigned i = 0; i < Gap::ADDR_LEN; i++) {
cho45 6:f1c3ea8bc850 61 printf("%c", passkey[i]);
cho45 6:f1c3ea8bc850 62 }
cho45 6:f1c3ea8bc850 63 printf("\r\n");
cho45 29:ec548c473d50 64 */
cho45 6:f1c3ea8bc850 65 }
cho45 6:f1c3ea8bc850 66
cho45 6:f1c3ea8bc850 67 static void securitySetupCompletedCallback(Gap::Handle_t handle, SecurityManager::SecurityCompletionStatus_t status) {
cho45 6:f1c3ea8bc850 68 if (status == SecurityManager::SEC_STATUS_SUCCESS) {
cho45 29:ec548c473d50 69 /*
cho45 6:f1c3ea8bc850 70 printf("Security success %d\r\n", status);
cho45 13:b0ffdf2012b9 71 printf("Set whitelist\r\n");
cho45 29:ec548c473d50 72 */
cho45 13:b0ffdf2012b9 73 Gap::Whitelist_t whitelist;
cho45 13:b0ffdf2012b9 74 whitelist.size = 1;
cho45 13:b0ffdf2012b9 75 whitelist.capacity = 1;
cho45 13:b0ffdf2012b9 76 whitelist.addresses = &peerAddress;
cho45 13:b0ffdf2012b9 77
cho45 13:b0ffdf2012b9 78 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().setWhitelist(whitelist);
cho45 29:ec548c473d50 79 //printf("Set Advertising Policy Mode\r\n");
cho45 13:b0ffdf2012b9 80 // BLE::Instance(BLE::DEFAULT_INSTANCE).gap().setAdvertisingPolicyMode(Gap::ADV_POLICY_FILTER_SCAN_REQS);
cho45 13:b0ffdf2012b9 81 // BLE::Instance(BLE::DEFAULT_INSTANCE).gap().setAdvertisingPolicyMode(Gap::ADV_POLICY_FILTER_CONN_REQS);
cho45 13:b0ffdf2012b9 82 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().setAdvertisingPolicyMode(Gap::ADV_POLICY_FILTER_ALL_REQS);
cho45 6:f1c3ea8bc850 83 } else {
cho45 29:ec548c473d50 84 //printf("Security failed %d\r\n", status);
cho45 6:f1c3ea8bc850 85 }
cho45 6:f1c3ea8bc850 86 }
cho45 6:f1c3ea8bc850 87
cho45 6:f1c3ea8bc850 88 static void securitySetupInitiatedCallback(Gap::Handle_t, bool allowBonding, bool requireMITM, SecurityManager::SecurityIOCapabilities_t iocaps) {
cho45 29:ec548c473d50 89 // printf("Security setup initiated\r\n");
cho45 6:f1c3ea8bc850 90 }
cho45 6:f1c3ea8bc850 91
cho45 6:f1c3ea8bc850 92 static void bleInitComplete(BLE::InitializationCompleteCallbackContext *params) {
cho45 6:f1c3ea8bc850 93 // https://developer.mbed.org/compiler/#nav:/keyboard/BLE_API/ble/blecommon.h;
cho45 6:f1c3ea8bc850 94 ble_error_t error;
cho45 6:f1c3ea8bc850 95 BLE &ble = params->ble;
cho45 23:b31957ce64e9 96
cho45 27:7370b8994603 97 controllerStatus = DISCONNECTED;
cho45 16:345eebc4f259 98
cho45 16:345eebc4f259 99 /**< Minimum Connection Interval in 1.25 ms units, see BLE_GAP_CP_LIMITS.*/
cho45 29:ec548c473d50 100 uint16_t minConnectionInterval = Gap::MSEC_TO_GAP_DURATION_UNITS(20);
cho45 16:345eebc4f259 101 /**< Maximum Connection Interval in 1.25 ms units, see BLE_GAP_CP_LIMITS.*/
cho45 29:ec548c473d50 102 uint16_t maxConnectionInterval = Gap::MSEC_TO_GAP_DURATION_UNITS(40);
cho45 16:345eebc4f259 103 /**< Slave Latency in number of connection events, see BLE_GAP_CP_LIMITS.*/
cho45 29:ec548c473d50 104 uint16_t slaveLatency = 4;
cho45 16:345eebc4f259 105 /**< Connection Supervision Timeout in 10 ms units, see BLE_GAP_CP_LIMITS.*/
cho45 16:345eebc4f259 106 uint16_t connectionSupervisionTimeout = 32 * 100;
cho45 16:345eebc4f259 107 Gap::ConnectionParams_t connectionParams = {
cho45 16:345eebc4f259 108 minConnectionInterval,
cho45 16:345eebc4f259 109 maxConnectionInterval,
cho45 16:345eebc4f259 110 slaveLatency,
cho45 16:345eebc4f259 111 connectionSupervisionTimeout
cho45 16:345eebc4f259 112 };
cho45 16:345eebc4f259 113
cho45 6:f1c3ea8bc850 114 error = params->error;
cho45 6:f1c3ea8bc850 115 if (error != BLE_ERROR_NONE) {
cho45 6:f1c3ea8bc850 116 printf("error on ble.init() \r\n");
cho45 6:f1c3ea8bc850 117 goto return_error;
cho45 6:f1c3ea8bc850 118 }
cho45 6:f1c3ea8bc850 119
cho45 6:f1c3ea8bc850 120 ble.gap().onDisconnection(onDisconnect);
cho45 6:f1c3ea8bc850 121 ble.gap().onConnection(onConnect);
cho45 6:f1c3ea8bc850 122 ble.gap().onTimeout(onTimeout);
cho45 6:f1c3ea8bc850 123
cho45 17:3233ee19f716 124 // printf("setup ble security manager\r\n");
cho45 6:f1c3ea8bc850 125 ble.securityManager().onSecuritySetupInitiated(securitySetupInitiatedCallback);
cho45 6:f1c3ea8bc850 126 ble.securityManager().onPasskeyDisplay(passkeyDisplayCallback);
cho45 6:f1c3ea8bc850 127 ble.securityManager().onSecuritySetupCompleted(securitySetupCompletedCallback);
cho45 6:f1c3ea8bc850 128 // bonding with hard-coded passkey.
cho45 6:f1c3ea8bc850 129 error = ble.securityManager().init(ENABLE_BONDING, REQUIRE_MITM, SecurityManager::IO_CAPS_DISPLAY_ONLY, PASSKEY);
cho45 6:f1c3ea8bc850 130 if (error != BLE_ERROR_NONE) {
cho45 6:f1c3ea8bc850 131 printf("error on ble.securityManager().init()");
cho45 6:f1c3ea8bc850 132 goto return_error;
cho45 6:f1c3ea8bc850 133 }
cho45 16:345eebc4f259 134
cho45 6:f1c3ea8bc850 135
cho45 17:3233ee19f716 136 // printf("new KeyboardService\r\n");
cho45 6:f1c3ea8bc850 137 keyboardService = new KeyboardService(ble);
cho45 17:3233ee19f716 138 // printf("new DeviceInformationService\r\n");
cho45 6:f1c3ea8bc850 139 deviceInformationService = new DeviceInformationService(ble, "lowreal.net", MODEL_NAME, SERIAL_NUMBER, HARDWARE_REVISION, FIRMWARE_REVISION, SOFTWARE_REVISION);
cho45 17:3233ee19f716 140 // printf("new BatteryService\r\n");
cho45 6:f1c3ea8bc850 141 batteryService = new BatteryService(ble, 100);
cho45 37:4ce71fa47fc3 142 /** TODO
cho45 16:345eebc4f259 143 printf("new DFUService\r\n");
cho45 16:345eebc4f259 144 dfuService = new DFUService(ble);
cho45 16:345eebc4f259 145 */
cho45 16:345eebc4f259 146
cho45 17:3233ee19f716 147 //printf("setup connection params\r\n");
cho45 16:345eebc4f259 148
cho45 16:345eebc4f259 149 ble.gap().setPreferredConnectionParams(&connectionParams);
cho45 6:f1c3ea8bc850 150
cho45 17:3233ee19f716 151 // printf("general setup\r\n");
cho45 6:f1c3ea8bc850 152 error = ble.gap().accumulateAdvertisingPayload(
cho45 6:f1c3ea8bc850 153 GapAdvertisingData::BREDR_NOT_SUPPORTED |
cho45 6:f1c3ea8bc850 154 GapAdvertisingData::LE_GENERAL_DISCOVERABLE
cho45 6:f1c3ea8bc850 155 );
cho45 9:d1daefbf1fbd 156 // shoud be LE_LIMITED_DISCOVERABLE
cho45 9:d1daefbf1fbd 157 // error = ble.gap().accumulateAdvertisingPayload(
cho45 9:d1daefbf1fbd 158 // GapAdvertisingData::BREDR_NOT_SUPPORTED |
cho45 9:d1daefbf1fbd 159 // GapAdvertisingData::LE_LIMITED_DISCOVERABLE
cho45 9:d1daefbf1fbd 160 // );
cho45 6:f1c3ea8bc850 161 if (error != BLE_ERROR_NONE) goto return_error;
cho45 6:f1c3ea8bc850 162
cho45 17:3233ee19f716 163 // printf("set COMPLETE_LIST_16BIT_SERVICE_IDS\r\n");
cho45 6:f1c3ea8bc850 164 error = ble.gap().accumulateAdvertisingPayload(
cho45 6:f1c3ea8bc850 165 GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS,
cho45 6:f1c3ea8bc850 166 (uint8_t*)uuid16_list, sizeof(uuid16_list)
cho45 6:f1c3ea8bc850 167 );
cho45 6:f1c3ea8bc850 168 if (error != BLE_ERROR_NONE) goto return_error;
cho45 6:f1c3ea8bc850 169
cho45 17:3233ee19f716 170 // printf("set advertising\r\n");
cho45 6:f1c3ea8bc850 171 // see 5.1.2: HID over GATT Specification (pg. 25)
cho45 6:f1c3ea8bc850 172 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
cho45 6:f1c3ea8bc850 173
cho45 17:3233ee19f716 174 // printf("set advertising interval\r\n");
cho45 28:1f843a3daab0 175 ble.gap().setAdvertisingInterval(20);
cho45 17:3233ee19f716 176 // printf("set advertising timeout\r\n");
cho45 38:115875b8cb6c 177 ble.gap().setAdvertisingTimeout(30);
cho45 28:1f843a3daab0 178
cho45 28:1f843a3daab0 179 /*
cho45 28:1f843a3daab0 180 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_DIRECTED);
cho45 28:1f843a3daab0 181 ble.gap().setAdvertisingTimeout(1.28);
cho45 28:1f843a3daab0 182 */
cho45 6:f1c3ea8bc850 183
cho45 17:3233ee19f716 184 // printf("set keyboard\r\n");
cho45 6:f1c3ea8bc850 185 error = ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::KEYBOARD);
cho45 6:f1c3ea8bc850 186 if (error != BLE_ERROR_NONE) goto return_error;
cho45 6:f1c3ea8bc850 187
cho45 17:3233ee19f716 188 // printf("set complete local name\r\n");
cho45 6:f1c3ea8bc850 189 error = ble.gap().accumulateAdvertisingPayload(
cho45 6:f1c3ea8bc850 190 GapAdvertisingData::COMPLETE_LOCAL_NAME,
cho45 6:f1c3ea8bc850 191 DEVICE_NAME, sizeof(DEVICE_NAME)
cho45 6:f1c3ea8bc850 192 );
cho45 6:f1c3ea8bc850 193 if (error != BLE_ERROR_NONE) goto return_error;
cho45 6:f1c3ea8bc850 194
cho45 17:3233ee19f716 195 // printf("set device name\r\n");
cho45 6:f1c3ea8bc850 196 error = ble.gap().setDeviceName(DEVICE_NAME);
cho45 6:f1c3ea8bc850 197 if (error != BLE_ERROR_NONE) goto return_error;
cho45 22:a78f0a91280a 198 /* (Valid values are -40, -20, -16, -12, -8, -4, 0, 4) */
cho45 19:cd7f2fe05ae4 199 ble.gap().setTxPower(0);
cho45 6:f1c3ea8bc850 200
cho45 32:6c0f43fda460 201 ble.gap().setAdvertisingPolicyMode(Gap::ADV_POLICY_IGNORE_WHITELIST);
cho45 23:b31957ce64e9 202
cho45 32:6c0f43fda460 203 // printf("advertising\r\n");
cho45 6:f1c3ea8bc850 204 error = ble.gap().startAdvertising();
cho45 6:f1c3ea8bc850 205 if (error != BLE_ERROR_NONE) goto return_error;
cho45 32:6c0f43fda460 206 controllerStatus = ADVERTISING;
cho45 6:f1c3ea8bc850 207 return;
cho45 6:f1c3ea8bc850 208
cho45 6:f1c3ea8bc850 209 return_error:
cho45 6:f1c3ea8bc850 210 printf("error with %d\r\n", error);
cho45 6:f1c3ea8bc850 211 return;
cho45 6:f1c3ea8bc850 212 }
cho45 6:f1c3ea8bc850 213
cho45 20:d8840ac38434 214 bool HIDController::connected() {
cho45 27:7370b8994603 215 return controllerStatus == CONNECTED;
cho45 27:7370b8994603 216 }
cho45 27:7370b8994603 217
cho45 27:7370b8994603 218 Status_t HIDController::status() {
cho45 27:7370b8994603 219 return controllerStatus;
cho45 20:d8840ac38434 220 }
cho45 20:d8840ac38434 221
cho45 32:6c0f43fda460 222 const char* HIDController::statusString() {
cho45 32:6c0f43fda460 223 static const char* disconnected = "disconnected";
cho45 32:6c0f43fda460 224 static const char* connecting = "connecting";
cho45 32:6c0f43fda460 225 static const char* connected = "connected";
cho45 32:6c0f43fda460 226 static const char* timeout = "timeout";
cho45 32:6c0f43fda460 227 static const char* advertising = "advertising";
cho45 32:6c0f43fda460 228 static const char* unknown = "unknown";
cho45 32:6c0f43fda460 229
cho45 32:6c0f43fda460 230 return controllerStatus == DISCONNECTED ? disconnected:
cho45 32:6c0f43fda460 231 controllerStatus == CONNECTING ? connecting:
cho45 32:6c0f43fda460 232 controllerStatus == CONNECTED ? connected:
cho45 32:6c0f43fda460 233 controllerStatus == TIMEOUT ? timeout:
cho45 32:6c0f43fda460 234 controllerStatus == ADVERTISING ? advertising:
cho45 32:6c0f43fda460 235 unknown;
cho45 32:6c0f43fda460 236 }
cho45 32:6c0f43fda460 237
cho45 6:f1c3ea8bc850 238 void HIDController::init() {
cho45 6:f1c3ea8bc850 239 // https://github.com/jpbrucker/BLE_HID/blob/master/examples/examples_common.cpp
cho45 6:f1c3ea8bc850 240 printf("ble.init\r\n");
cho45 6:f1c3ea8bc850 241
cho45 6:f1c3ea8bc850 242 BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE);
cho45 6:f1c3ea8bc850 243 ble.init(bleInitComplete);
cho45 6:f1c3ea8bc850 244
cho45 6:f1c3ea8bc850 245 while (!ble.hasInitialized()) { }
cho45 6:f1c3ea8bc850 246 printf("ble.hasIntialized\r\n");
cho45 6:f1c3ea8bc850 247 }
cho45 6:f1c3ea8bc850 248
cho45 22:a78f0a91280a 249
cho45 10:1aed2481a743 250 void HIDController::waitForEvent() {
cho45 6:f1c3ea8bc850 251 BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE);
cho45 21:d801c32231b0 252 keyboardService->stopReportTicker();
cho45 6:f1c3ea8bc850 253 ble.waitForEvent();
cho45 6:f1c3ea8bc850 254 }
cho45 6:f1c3ea8bc850 255
cho45 6:f1c3ea8bc850 256 void HIDController::appendReportData(uint8_t key) {
cho45 6:f1c3ea8bc850 257 if (keyboardService) {
cho45 6:f1c3ea8bc850 258 keyboardService->appendReportData(key);
cho45 6:f1c3ea8bc850 259 }
cho45 6:f1c3ea8bc850 260 }
cho45 6:f1c3ea8bc850 261
cho45 6:f1c3ea8bc850 262 void HIDController::deleteReportData(uint8_t key) {
cho45 6:f1c3ea8bc850 263 if (keyboardService) {
cho45 6:f1c3ea8bc850 264 keyboardService->deleteReportData(key);
cho45 6:f1c3ea8bc850 265 }
cho45 6:f1c3ea8bc850 266 }
cho45 9:d1daefbf1fbd 267
cho45 9:d1daefbf1fbd 268 void HIDController::queueCurrentReportData() {
cho45 29:ec548c473d50 269 if (!connected()) return;
cho45 9:d1daefbf1fbd 270 if (keyboardService) {
cho45 40:364deaa190fe 271 // printf("Q\r\n");
cho45 9:d1daefbf1fbd 272 keyboardService->queueCurrentReportData();
cho45 9:d1daefbf1fbd 273 }
cho45 9:d1daefbf1fbd 274 }
cho45 37:4ce71fa47fc3 275
cho45 37:4ce71fa47fc3 276 void HIDController::updateBatteryLevel(uint8_t percentage) {
cho45 37:4ce71fa47fc3 277 if (!batteryService) return;
cho45 37:4ce71fa47fc3 278 batteryService->updateBatteryLevel(percentage);
cho45 37:4ce71fa47fc3 279 }
cho45 37:4ce71fa47fc3 280
cho45 40:364deaa190fe 281 void HIDController::initializeConnection(bool ignoreWhiteList) {
cho45 38:115875b8cb6c 282 ble_error_t error;
cho45 38:115875b8cb6c 283 BLE& ble = BLE::Instance(BLE::DEFAULT_INSTANCE);
cho45 39:b7889285c9ef 284 ble.gap().setAdvertisingInterval(20);
cho45 39:b7889285c9ef 285 ble.gap().setAdvertisingTimeout(30);
cho45 40:364deaa190fe 286 if (ignoreWhiteList) {
cho45 40:364deaa190fe 287 ble.gap().setAdvertisingPolicyMode(Gap::ADV_POLICY_IGNORE_WHITELIST);
cho45 40:364deaa190fe 288 }
cho45 38:115875b8cb6c 289
cho45 38:115875b8cb6c 290 // printf("advertising\r\n");
cho45 38:115875b8cb6c 291 error = ble.gap().startAdvertising();
cho45 38:115875b8cb6c 292 if (error != BLE_ERROR_NONE) goto return_error;
cho45 38:115875b8cb6c 293 controllerStatus = ADVERTISING;
cho45 38:115875b8cb6c 294 return;
cho45 38:115875b8cb6c 295
cho45 38:115875b8cb6c 296 return_error:
cho45 38:115875b8cb6c 297 printf("error with %d\r\n", error);
cho45 38:115875b8cb6c 298 return;
cho45 38:115875b8cb6c 299 }