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__ "device_information_service_server.c" 39 40 /** 41 * Implementation of the Device Information Service Server 42 * 43 * To use with your application, add '#import <device_information_sevice.gatt' to your .gatt file 44 * and call all functions below. All strings and blobs need to stay valid after calling the functions. 45 * 46 * @note: instead of calling all setters, you can create a local copy of the .gatt file and remove 47 * all Characteristics that are not relevant for your application. 48 */ 49 50 51 #include "btstack_defines.h" 52 #include "ble/att_db.h" 53 #include "ble/att_server.h" 54 #include "btstack_util.h" 55 #include "bluetooth_gatt.h" 56 57 #include "ble/gatt-service/device_information_service_server.h" 58 59 typedef enum { 60 MANUFACTURER_NAME = 0, 61 MODEL_NUMBER, 62 SERIAL_NUMBER, 63 HARDWARE_REVISION, 64 FIRMWARE_REVISION, 65 SOFTWARE_REVISION, 66 SYSTEM_ID, 67 IEEE_REGULATORY_CERTIFICATION, 68 PNP_ID, 69 NUM_INFORMATION_FIELDS 70 } device_information_field_id_t; 71 72 typedef struct { 73 uint8_t * data; 74 uint16_t len; 75 uint16_t value_handle; 76 } device_information_field_t; 77 78 const uint16_t device_information_characteristic_uuids[] = { 79 ORG_BLUETOOTH_CHARACTERISTIC_MANUFACTURER_NAME_STRING, 80 ORG_BLUETOOTH_CHARACTERISTIC_MODEL_NUMBER_STRING, 81 ORG_BLUETOOTH_CHARACTERISTIC_SERIAL_NUMBER_STRING, 82 ORG_BLUETOOTH_CHARACTERISTIC_HARDWARE_REVISION_STRING, 83 ORG_BLUETOOTH_CHARACTERISTIC_FIRMWARE_REVISION_STRING, 84 ORG_BLUETOOTH_CHARACTERISTIC_SOFTWARE_REVISION_STRING, 85 ORG_BLUETOOTH_CHARACTERISTIC_SYSTEM_ID, 86 ORG_BLUETOOTH_CHARACTERISTIC_IEEE_11073_20601_REGULATORY_CERTIFICATION_DATA_LIST, 87 ORG_BLUETOOTH_CHARACTERISTIC_PNP_ID 88 }; 89 90 static device_information_field_t device_information_fields[NUM_INFORMATION_FIELDS]; 91 92 static uint8_t device_information_system_id[8]; 93 static uint8_t device_information_ieee_regulatory_certification[4]; 94 static uint8_t device_information_pnp_id[7]; 95 96 static att_service_handler_t device_information_service; 97 98 static void set_string(device_information_field_id_t field_id, const char * text){ 99 device_information_fields[field_id].data = (uint8_t*) text; 100 device_information_fields[field_id].len = strlen(text); 101 } 102 103 static uint16_t device_information_service_read_callback(hci_con_handle_t con_handle, uint16_t attribute_handle, uint16_t offset, uint8_t * buffer, uint16_t buffer_size){ 104 UNUSED(con_handle); // ok: info same for all devices 105 int i; 106 for (i=0;i<NUM_INFORMATION_FIELDS;i++){ 107 if (device_information_fields[i].value_handle != attribute_handle) continue; 108 if (buffer == 0){ 109 return device_information_fields[i].len; 110 } 111 int bytes_to_copy = btstack_min(device_information_fields[i].len - offset, buffer_size); 112 memcpy(buffer, &device_information_fields[i].data[offset], bytes_to_copy); 113 return bytes_to_copy; 114 } 115 return 0; 116 } 117 118 void device_information_service_server_init(void){ 119 120 // get service handle range 121 uint16_t start_handle; 122 uint16_t end_handle; 123 int service_found = gatt_server_get_get_handle_range_for_service_with_uuid16(ORG_BLUETOOTH_SERVICE_DEVICE_INFORMATION, &start_handle, &end_handle); 124 if (!service_found) return; 125 126 // set length for fixed size characateristics 127 device_information_fields[SYSTEM_ID].data = device_information_system_id; 128 device_information_fields[SYSTEM_ID].len = 8; 129 device_information_fields[IEEE_REGULATORY_CERTIFICATION].data = device_information_ieee_regulatory_certification; 130 device_information_fields[IEEE_REGULATORY_CERTIFICATION].len = 4; 131 device_information_fields[PNP_ID].data = device_information_pnp_id; 132 device_information_fields[PNP_ID].len = 7; 133 134 // get characteristic value handles 135 int i; 136 for (i=0;i<NUM_INFORMATION_FIELDS;i++){ 137 device_information_fields[i].value_handle = gatt_server_get_value_handle_for_characteristic_with_uuid16(start_handle, end_handle, device_information_characteristic_uuids[i]); 138 } 139 140 // register service with ATT Server 141 device_information_service.start_handle = start_handle; 142 device_information_service.end_handle = end_handle; 143 device_information_service.read_callback = &device_information_service_read_callback; 144 device_information_service.write_callback = NULL; 145 att_server_register_service_handler(&device_information_service); 146 } 147 148 /** 149 * @brief Set Manufacturer Name 150 * @param manufacturer_name 151 */ 152 void device_information_service_server_set_manufacturer_name(const char * manufacturer_name){ 153 set_string(MANUFACTURER_NAME, manufacturer_name); 154 } 155 156 /** 157 * @brief Set Model Number 158 * @param model_number 159 */ 160 void device_information_service_server_set_model_number(const char * model_number){ 161 set_string(MODEL_NUMBER, model_number); 162 } 163 164 /** 165 * @brief Set Serial Number 166 * @param serial_number 167 */ 168 void device_information_service_server_set_serial_number(const char * serial_number){ 169 set_string(SERIAL_NUMBER, serial_number); 170 } 171 172 /** 173 * @brief Set Hardware Revision 174 * @param hardware_revision 175 */ 176 void device_information_service_server_set_hardware_revision(const char * hardware_revision){ 177 set_string(HARDWARE_REVISION, hardware_revision); 178 } 179 180 /** 181 * @brief Set Firmware Revision 182 * @param firmware_revision 183 */ 184 void device_information_service_server_set_firmware_revision(const char * firmware_revision){ 185 set_string(FIRMWARE_REVISION, firmware_revision); 186 } 187 188 /** 189 * @brief Set Software Revision 190 * @param software_revision 191 */ 192 void device_information_service_server_set_software_revision(const char * software_revision){ 193 set_string(SOFTWARE_REVISION, software_revision); 194 } 195 196 /** 197 * @brief Set System ID 198 * @param manufacturer_identifier uint40 199 * @param organizationally_unique_identifier uint24 200 */ 201 void device_information_service_server_set_system_id(uint64_t manufacturer_identifier, uint32_t organizationally_unique_identifier){ 202 little_endian_store_32(device_information_system_id, 0, manufacturer_identifier); 203 device_information_system_id[4] = manufacturer_identifier >> 32; 204 little_endian_store_16(device_information_system_id, 5, organizationally_unique_identifier); 205 device_information_system_id[7] = organizationally_unique_identifier >> 16; 206 } 207 208 /** 209 * @brief Set IEEE 11073-20601 regulatory certification data list 210 * @note: format duint16. duint16 is two uint16 values concatenated together. 211 * @param ieee_regulatory_certification 212 */ 213 void device_information_service_server_set_ieee_regulatory_certification(uint16_t value_a, uint16_t value_b){ 214 little_endian_store_16(device_information_ieee_regulatory_certification, 0, value_a); 215 little_endian_store_16(device_information_ieee_regulatory_certification, 2, value_b); 216 } 217 218 /** 219 * @brief Set PNP ID 220 * @param vendor_source_id 221 * @param vendor_id 222 * @param product_id 223 */ 224 void device_information_service_server_set_pnp_id(uint8_t vendor_source_id, uint16_t vendor_id, uint16_t product_id, uint16_t product_version){ 225 device_information_pnp_id[0] = vendor_source_id; 226 little_endian_store_16(device_information_pnp_id, 1, vendor_id); 227 little_endian_store_16(device_information_pnp_id, 3, product_id); 228 little_endian_store_16(device_information_pnp_id, 5, product_version); 229 } 230