1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 #define BTSTACK_FILE__ "gatt_device_information_query.c" 39 40 // ***************************************************************************** 41 /* EXAMPLE_START(gatt_device_information_query): GATT Device Information Client 42 * 43 */ 44 45 #include <stdint.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 50 #include "btstack.h" 51 52 // gatt_device_information_query.gatt contains the declaration of the provided GATT Services + Characteristics 53 // gatt_device_information_query.h contains the binary representation of gatt_device_information_query.gatt 54 // it is generated by the build system by calling: $BTSTACK_ROOT/tool/compile_gatt.py gatt_device_information_query.gatt gatt_device_information_query.h 55 // it needs to be regenerated when the GATT Database declared in gatt_device_information_query.gatt file is modified 56 #include "gatt_device_information_query.h" 57 58 typedef struct advertising_report { 59 uint8_t type; 60 uint8_t event_type; 61 uint8_t address_type; 62 bd_addr_t address; 63 uint8_t rssi; 64 uint8_t length; 65 const uint8_t * data; 66 } advertising_report_t; 67 68 static enum { 69 APP_STATE_IDLE, 70 APP_STATE_W4_SCAN_RESULT, 71 APP_STATE_W4_CONNECT, 72 APP_STATE_CONNECTED 73 } app_state; 74 75 static int blacklist_index = 0; 76 static bd_addr_t blacklist[20]; 77 static advertising_report_t report; 78 79 static hci_con_handle_t connection_handle; 80 81 static bd_addr_t cmdline_addr; 82 static int cmdline_addr_found = 0; 83 84 static btstack_packet_callback_registration_t hci_event_callback_registration; 85 86 static int blacklist_size(void){ 87 return sizeof(blacklist) / sizeof(bd_addr_t); 88 } 89 90 static int blacklist_contains(bd_addr_t addr){ 91 int i; 92 for (i=0; i<blacklist_size(); i++){ 93 if (bd_addr_cmp(addr, blacklist[i]) == 0) return 1; 94 } 95 return 0; 96 } 97 98 static void add_to_blacklist(bd_addr_t addr){ 99 printf("%s added to blacklist (no device information service found).\n", bd_addr_to_str(addr)); 100 bd_addr_copy(blacklist[blacklist_index], addr); 101 blacklist_index = (blacklist_index + 1) % blacklist_size(); 102 } 103 104 static void dump_advertising_report(uint8_t *packet){ 105 bd_addr_t address; 106 gap_event_advertising_report_get_address(packet, address); 107 108 printf(" * adv. event: evt-type %u, addr-type %u, addr %s, rssi %u, length adv %u, data: ", 109 gap_event_advertising_report_get_advertising_event_type(packet), 110 gap_event_advertising_report_get_address_type(packet), 111 bd_addr_to_str(address), 112 gap_event_advertising_report_get_rssi(packet), 113 gap_event_advertising_report_get_data_length(packet)); 114 printf_hexdump(gap_event_advertising_report_get_data(packet), gap_event_advertising_report_get_data_length(packet)); 115 116 } 117 118 static void handle_gatt_client_event(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 119 UNUSED(packet_type); 120 UNUSED(channel); 121 UNUSED(size); 122 123 uint8_t att_status = 0; 124 125 if (hci_event_packet_get_type(packet) != HCI_EVENT_GATTSERVICE_META){ 126 return; 127 } 128 129 switch (hci_event_gattservice_meta_get_subevent_code(packet)){ 130 case GATTSERVICE_SUBEVENT_DEVICE_INFORMATION_MANUFACTURER_NAME: 131 att_status = gattservice_subevent_device_information_manufacturer_name_get_att_status(packet); 132 if (att_status != ATT_ERROR_SUCCESS){ 133 printf("Manufacturer Name read failed, ATT Error 0x%02x\n", att_status); 134 } else { 135 printf("Manufacturer Name: %s\n", gattservice_subevent_device_information_manufacturer_name_get_value(packet)); 136 } 137 break; 138 139 case GATTSERVICE_SUBEVENT_DEVICE_INFORMATION_MODEL_NUMBER: 140 att_status = gattservice_subevent_device_information_model_number_get_att_status(packet); 141 if (att_status != ATT_ERROR_SUCCESS){ 142 printf("Model Number read failed, ATT Error 0x%02x\n", att_status); 143 } else { 144 printf("Model Number: %s\n", gattservice_subevent_device_information_model_number_get_value(packet)); 145 } 146 break; 147 148 case GATTSERVICE_SUBEVENT_DEVICE_INFORMATION_SERIAL_NUMBER: 149 att_status = gattservice_subevent_device_information_serial_number_get_att_status(packet); 150 if (att_status != ATT_ERROR_SUCCESS){ 151 printf("Serial Number read failed, ATT Error 0x%02x\n", att_status); 152 } else { 153 printf("Serial Number: %s\n", gattservice_subevent_device_information_serial_number_get_value(packet)); 154 } 155 break; 156 157 case GATTSERVICE_SUBEVENT_DEVICE_INFORMATION_HARDWARE_REVISION: 158 att_status = gattservice_subevent_device_information_hardware_revision_get_att_status(packet); 159 if (att_status != ATT_ERROR_SUCCESS){ 160 printf("Hardware Revision read failed, ATT Error 0x%02x\n", att_status); 161 } else { 162 printf("Hardware Revision: %s\n", gattservice_subevent_device_information_hardware_revision_get_value(packet)); 163 } 164 break; 165 166 case GATTSERVICE_SUBEVENT_DEVICE_INFORMATION_FIRMWARE_REVISION: 167 att_status = gattservice_subevent_device_information_firmware_revision_get_att_status(packet); 168 if (att_status != ATT_ERROR_SUCCESS){ 169 printf("Firmware Revision read failed, ATT Error 0x%02x\n", att_status); 170 } else { 171 printf("Firmware Revision: %s\n", gattservice_subevent_device_information_firmware_revision_get_value(packet)); 172 } 173 break; 174 175 case GATTSERVICE_SUBEVENT_DEVICE_INFORMATION_SOFTWARE_REVISION: 176 att_status = gattservice_subevent_device_information_software_revision_get_att_status(packet); 177 if (att_status != ATT_ERROR_SUCCESS){ 178 printf("Software Revision read failed, ATT Error 0x%02x\n", att_status); 179 } else { 180 printf("Software Revision: %s\n", gattservice_subevent_device_information_software_revision_get_value(packet)); 181 } 182 break; 183 184 case GATTSERVICE_SUBEVENT_DEVICE_INFORMATION_SYSTEM_ID: 185 att_status = gattservice_subevent_device_information_system_id_get_att_status(packet); 186 if (att_status != ATT_ERROR_SUCCESS){ 187 printf("System ID read failed, ATT Error 0x%02x\n", att_status); 188 } else { 189 uint32_t manufacturer_identifier_low = gattservice_subevent_device_information_system_id_get_manufacturer_id_low(packet); 190 uint8_t manufacturer_identifier_high = gattservice_subevent_device_information_system_id_get_manufacturer_id_high(packet); 191 192 printf("Manufacturer ID: 0x%02x%08x\n", manufacturer_identifier_high, manufacturer_identifier_low); 193 printf("Organizationally Unique ID: 0x%06x\n", gattservice_subevent_device_information_system_id_get_organizationally_unique_id(packet)); 194 } 195 break; 196 197 case GATTSERVICE_SUBEVENT_DEVICE_INFORMATION_IEEE_REGULATORY_CERTIFICATION: 198 att_status = gattservice_subevent_device_information_ieee_regulatory_certification_get_att_status(packet); 199 if (att_status != ATT_ERROR_SUCCESS){ 200 printf("IEEE Regulatory Certification read failed, ATT Error 0x%02x\n", att_status); 201 } else { 202 printf("value_a: 0x%04x\n", gattservice_subevent_device_information_ieee_regulatory_certification_get_value_a(packet)); 203 printf("value_b: 0x%04x\n", gattservice_subevent_device_information_ieee_regulatory_certification_get_value_b(packet)); 204 } 205 break; 206 207 case GATTSERVICE_SUBEVENT_DEVICE_INFORMATION_PNP_ID: 208 att_status = gattservice_subevent_device_information_pnp_id_get_att_status(packet); 209 if (att_status != ATT_ERROR_SUCCESS){ 210 printf("PNP ID read failed, ATT Error 0x%02x\n", att_status); 211 } else { 212 printf("Vendor Source ID: 0x%02x\n", gattservice_subevent_device_information_pnp_id_get_vendor_source_id(packet)); 213 printf("Vendor ID: 0x%04x\n", gattservice_subevent_device_information_pnp_id_get_vendor_id(packet)); 214 printf("Product ID: 0x%04x\n", gattservice_subevent_device_information_pnp_id_get_product_id(packet)); 215 printf("Product Version: 0x%04x\n", gattservice_subevent_device_information_pnp_id_get_product_version(packet)); 216 } 217 break; 218 219 case GATTSERVICE_SUBEVENT_DEVICE_INFORMATION_DONE: 220 att_status = gattservice_subevent_device_information_serial_number_get_att_status(packet); 221 if (att_status != ATT_ERROR_SUCCESS){ 222 printf("Query failed, ATT Error 0x%02x\n", att_status); 223 } else { 224 printf("Query done\n"); 225 } 226 227 default: 228 break; 229 } 230 } 231 232 static void hci_event_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 233 UNUSED(channel); 234 UNUSED(size); 235 236 uint8_t status; 237 bd_addr_t address; 238 239 if (packet_type != HCI_EVENT_PACKET){ 240 return; 241 } 242 243 switch (hci_event_packet_get_type(packet)) { 244 case BTSTACK_EVENT_STATE: 245 // BTstack activated, get started 246 if (btstack_event_state_get_state(packet) != HCI_STATE_WORKING) break; 247 if (cmdline_addr_found){ 248 printf("Connect to %s\n", bd_addr_to_str(cmdline_addr)); 249 app_state = APP_STATE_W4_CONNECT; 250 gap_connect(cmdline_addr, 0); 251 break; 252 } 253 printf("Start scanning!\n"); 254 app_state = APP_STATE_W4_SCAN_RESULT; 255 gap_set_scan_parameters(0,0x0030, 0x0030); 256 gap_start_scan(); 257 break; 258 259 case GAP_EVENT_ADVERTISING_REPORT: 260 if (app_state != APP_STATE_W4_SCAN_RESULT) return; 261 262 gap_event_advertising_report_get_address(packet, address); 263 if (blacklist_contains(address)) { 264 break; 265 } 266 dump_advertising_report(packet); 267 268 // stop scanning, and connect to the device 269 app_state = APP_STATE_W4_CONNECT; 270 gap_stop_scan(); 271 printf("Stop scan. Connect to device with addr %s.\n", bd_addr_to_str(report.address)); 272 gap_connect(report.address,report.address_type); 273 break; 274 275 case HCI_EVENT_LE_META: 276 // wait for connection complete 277 if (hci_event_le_meta_get_subevent_code(packet) != HCI_SUBEVENT_LE_CONNECTION_COMPLETE) break; 278 if (app_state != APP_STATE_W4_CONNECT) return; 279 connection_handle = hci_subevent_le_connection_complete_get_connection_handle(packet); 280 281 status = device_information_service_client_query(connection_handle, handle_gatt_client_event); 282 btstack_assert(status == ERROR_CODE_SUCCESS); 283 284 app_state = APP_STATE_CONNECTED; 285 printf("Device Information connected.\n"); 286 break; 287 288 case HCI_EVENT_DISCONNECTION_COMPLETE: 289 connection_handle = HCI_CON_HANDLE_INVALID; 290 291 if (cmdline_addr_found){ 292 printf("Disconnected %s\n", bd_addr_to_str(cmdline_addr)); 293 return; 294 } 295 296 printf("Disconnected %s\n", bd_addr_to_str(report.address)); 297 printf("Restart scan.\n"); 298 app_state = APP_STATE_W4_SCAN_RESULT; 299 gap_start_scan(); 300 break; 301 default: 302 break; 303 } 304 } 305 306 int btstack_main(int argc, const char * argv[]); 307 int btstack_main(int argc, const char * argv[]){ 308 309 // parse address if command line arguments are provided 310 int arg = 1; 311 cmdline_addr_found = 0; 312 313 while (arg < argc) { 314 if(!strcmp(argv[arg], "-a") || !strcmp(argv[arg], "--address")){ 315 arg++; 316 cmdline_addr_found = sscanf_bd_addr(argv[arg], cmdline_addr); 317 arg++; 318 if (!cmdline_addr_found) exit(1); 319 continue; 320 } 321 fprintf(stderr, "\nUsage: %s [-a|--address aa:bb:cc:dd:ee:ff]\n", argv[0]); 322 fprintf(stderr, "If no argument is provided, GATT browser will start scanning and connect to the first found device.\nTo connect to a specific device use argument [-a].\n\n"); 323 return 0; 324 } 325 (void)argv; 326 327 l2cap_init(); 328 329 // setup ATT server - only needed if LE Peripheral does ATT queries on its own, e.g. Android phones 330 att_server_init(profile_data, NULL, NULL); 331 332 // GATT Client setup 333 gatt_client_init(); 334 device_information_service_client_init(); 335 336 sm_init(); 337 sm_set_io_capabilities(IO_CAPABILITY_NO_INPUT_NO_OUTPUT); 338 339 hci_event_callback_registration.callback = &hci_event_handler; 340 hci_add_event_handler(&hci_event_callback_registration); 341 342 app_state = APP_STATE_IDLE; 343 344 // turn on! 345 hci_power_control(HCI_POWER_ON); 346 347 return 0; 348 } 349 350 /* EXAMPLE_END */ 351 352 353