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 BLUEKITCHEN 24 * GMBH 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__ "hids_device.c" 39 40 /** 41 * Implementation of the GATT HIDS Device 42 * To use with your application, add '#import <hids.gatt>' to your .gatt file 43 */ 44 45 #include "hids_device.h" 46 47 #include "ble/att_db.h" 48 #include "ble/att_server.h" 49 #include "bluetooth_gatt.h" 50 #include "btstack_util.h" 51 #include "btstack_debug.h" 52 53 #define HIDS_DEVICE_ERROR_CODE_INAPPROPRIATE_CONNECTION_PARAMETERS 0x80 54 55 // storage for 'generic' HID Device with single Input, Output, and Feature Report 56 static hids_device_report_t hid_reports_generic_storage[3]; 57 58 typedef struct{ 59 uint16_t con_handle; 60 61 uint8_t hid_country_code; 62 const uint8_t * hid_descriptor; 63 uint16_t hid_descriptor_size; 64 65 uint16_t hid_report_map_handle; 66 uint8_t hid_protocol_mode; 67 uint16_t hid_protocol_mode_value_handle; 68 69 uint16_t hid_boot_mouse_input_value_handle; 70 uint16_t hid_boot_mouse_input_client_configuration_handle; 71 uint16_t hid_boot_mouse_input_client_configuration_value; 72 73 uint16_t hid_boot_keyboard_input_value_handle; 74 uint16_t hid_boot_keyboard_input_client_configuration_handle; 75 uint16_t hid_boot_keyboard_input_client_configuration_value; 76 77 hids_device_report_t * hid_reports; 78 79 uint8_t hid_input_reports_num; 80 uint8_t hid_output_reports_num; 81 uint8_t hid_feature_reports_num; 82 83 uint16_t hid_control_point_value_handle; 84 uint8_t hid_control_point_suspend; 85 86 btstack_context_callback_registration_t can_send_now_callback; 87 } hids_device_t; 88 89 static hids_device_t hids_device; 90 91 static btstack_packet_handler_t packet_handler; 92 static att_service_handler_t hid_service; 93 94 // TODO: store hids device connection into list 95 static hids_device_t * hids_device_get_instance_for_con_handle(uint16_t con_handle){ 96 UNUSED(con_handle); 97 return &hids_device; 98 } 99 100 static hids_device_t * hids_device_create_instance(void){ 101 memset(&hids_device, 0, sizeof(hids_device_t)); 102 return &hids_device; 103 } 104 105 static hids_device_report_t * hids_device_get_report_for_client_configuration_handle(hids_device_t * device, uint16_t client_configuration_handle){ 106 uint8_t pos; 107 uint8_t total_reports = device->hid_input_reports_num + device->hid_output_reports_num + device->hid_feature_reports_num; 108 for (pos = 0 ; pos < total_reports ; pos++){ 109 if (device->hid_reports[pos].client_configuration_handle == client_configuration_handle){ 110 return &device->hid_reports[pos]; 111 } 112 } 113 return NULL; 114 } 115 116 static hids_device_report_t * 117 hids_device_get_report_for_id_and_type(hids_device_t *device, uint16_t report_id, hid_report_type_t type) { 118 uint8_t pos; 119 uint8_t total_reports = device->hid_input_reports_num + device->hid_output_reports_num + device->hid_feature_reports_num; 120 for (pos = 0 ; pos < total_reports ; pos++){ 121 if ((device->hid_reports[pos].type == type) && (device->hid_reports[pos].id == report_id)){ 122 return &device->hid_reports[pos]; 123 } 124 } 125 return NULL; 126 } 127 128 static void hids_device_emit_event_with_uint8(uint8_t event, hci_con_handle_t con_handle, uint8_t value){ 129 hids_device_t * instance = hids_device_get_instance_for_con_handle(con_handle); 130 if (!instance){ 131 log_error("no instance for handle 0x%02x", con_handle); 132 return; 133 } 134 135 if (!packet_handler) return; 136 uint8_t buffer[6]; 137 buffer[0] = HCI_EVENT_HIDS_META; 138 buffer[1] = 4; 139 buffer[2] = event; 140 little_endian_store_16(buffer, 3, (uint16_t) con_handle); 141 buffer[5] = value; 142 (*packet_handler)(HCI_EVENT_PACKET, 0, buffer, sizeof(buffer)); 143 } 144 145 static void hids_device_emit_event_with_uint8_uint8_t(uint8_t event, hci_con_handle_t con_handle, uint8_t value_1, uint8_t value_2){ 146 hids_device_t * instance = hids_device_get_instance_for_con_handle(con_handle); 147 if (!instance){ 148 log_error("no instance for handle 0x%02x", con_handle); 149 return; 150 } 151 152 if (!packet_handler) return; 153 uint8_t buffer[7]; 154 buffer[0] = HCI_EVENT_HIDS_META; 155 buffer[1] = 4; 156 buffer[2] = event; 157 little_endian_store_16(buffer, 3, (uint16_t) con_handle); 158 buffer[5] = value_1; 159 buffer[6] = value_2; 160 (*packet_handler)(HCI_EVENT_PACKET, 0, buffer, sizeof(buffer)); 161 } 162 163 static void hids_device_emit_event(uint8_t event, hci_con_handle_t con_handle){ 164 hids_device_t * instance = hids_device_get_instance_for_con_handle(con_handle); 165 if (!instance){ 166 log_error("no instance for handle 0x%02x", con_handle); 167 return; 168 } 169 170 if (!packet_handler) return; 171 uint8_t buffer[5]; 172 buffer[0] = HCI_EVENT_HIDS_META; 173 buffer[1] = 4; 174 buffer[2] = event; 175 little_endian_store_16(buffer, 3, (uint16_t) con_handle); 176 (*packet_handler)(HCI_EVENT_PACKET, 0, buffer, sizeof(buffer)); 177 } 178 179 static void hids_device_can_send_now(void * context){ 180 hci_con_handle_t con_handle = (hci_con_handle_t) (uintptr_t) context; 181 // notify client 182 hids_device_t * instance = hids_device_get_instance_for_con_handle(con_handle); 183 if (!instance){ 184 log_error("no instance for handle 0x%02x", con_handle); 185 return; 186 } 187 188 if (!packet_handler) return; 189 uint8_t buffer[5]; 190 buffer[0] = HCI_EVENT_HIDS_META; 191 buffer[1] = 3; 192 buffer[2] = HIDS_SUBEVENT_CAN_SEND_NOW; 193 little_endian_store_16(buffer, 3, (uint16_t) con_handle); 194 (*packet_handler)(HCI_EVENT_PACKET, 0, buffer, sizeof(buffer)); 195 } 196 197 // ATT Client Read Callback for Dynamic Data 198 // - if buffer == NULL, don't copy data, just return size of value 199 // - if buffer != NULL, copy data and return number bytes copied 200 static uint16_t att_read_callback(hci_con_handle_t con_handle, uint16_t att_handle, uint16_t offset, uint8_t * buffer, uint16_t buffer_size){ 201 hids_device_t * instance = hids_device_get_instance_for_con_handle(con_handle); 202 if (!instance){ 203 log_error("no instance for handle 0x%02x", con_handle); 204 return HIDS_DEVICE_ERROR_CODE_INAPPROPRIATE_CONNECTION_PARAMETERS; 205 } 206 207 if (att_handle == instance->hid_protocol_mode_value_handle){ 208 log_info("Read protocol mode"); 209 return att_read_callback_handle_byte(instance->hid_protocol_mode, offset, buffer, buffer_size); 210 } 211 212 if (att_handle == instance->hid_report_map_handle){ 213 log_info("Read report map"); 214 return att_read_callback_handle_blob(instance->hid_descriptor, instance->hid_descriptor_size, offset, buffer, buffer_size); 215 } 216 217 if (att_handle == instance->hid_boot_mouse_input_client_configuration_handle){ 218 return att_read_callback_handle_little_endian_16(instance->hid_boot_mouse_input_client_configuration_value, offset, buffer, buffer_size); 219 } 220 221 if (att_handle == instance->hid_boot_keyboard_input_client_configuration_handle){ 222 return att_read_callback_handle_little_endian_16(instance->hid_boot_keyboard_input_client_configuration_value, offset, buffer, buffer_size); 223 } 224 225 if (att_handle == instance->hid_control_point_value_handle){ 226 if (buffer && (buffer_size >= 1u)){ 227 buffer[0] = instance->hid_control_point_suspend; 228 } 229 return 1; 230 } 231 232 hids_device_report_t * report = hids_device_get_report_for_client_configuration_handle(instance, att_handle); 233 if (report != NULL){ 234 return att_read_callback_handle_little_endian_16(report->client_configuration_value, offset, buffer, buffer_size); 235 } 236 return 0; 237 } 238 239 static int att_write_callback(hci_con_handle_t con_handle, uint16_t att_handle, uint16_t transaction_mode, uint16_t offset, uint8_t *buffer, uint16_t buffer_size){ 240 UNUSED(buffer_size); 241 UNUSED(offset); 242 243 if (transaction_mode != ATT_TRANSACTION_MODE_NONE){ 244 return 0; 245 } 246 247 hids_device_t * instance = hids_device_get_instance_for_con_handle(con_handle); 248 if (!instance){ 249 log_error("no instance for handle 0x%02x", con_handle); 250 return HIDS_DEVICE_ERROR_CODE_INAPPROPRIATE_CONNECTION_PARAMETERS; 251 } 252 253 if (att_handle == instance->hid_boot_mouse_input_client_configuration_handle){ 254 uint16_t new_value = little_endian_read_16(buffer, 0); 255 instance->hid_boot_mouse_input_client_configuration_value = new_value; 256 hids_device_emit_event_with_uint8(HIDS_SUBEVENT_BOOT_MOUSE_INPUT_REPORT_ENABLE, con_handle, (uint8_t) new_value); 257 } 258 if (att_handle == instance->hid_boot_keyboard_input_client_configuration_handle){ 259 uint16_t new_value = little_endian_read_16(buffer, 0); 260 instance->hid_boot_keyboard_input_client_configuration_value = new_value; 261 hids_device_emit_event_with_uint8(HIDS_SUBEVENT_BOOT_KEYBOARD_INPUT_REPORT_ENABLE, con_handle, (uint8_t) new_value); 262 } 263 264 if (att_handle == instance->hid_protocol_mode_value_handle){ 265 instance->hid_protocol_mode = buffer[0]; 266 log_info("Set protocol mode: %u", instance->hid_protocol_mode); 267 hids_device_emit_event_with_uint8(HIDS_SUBEVENT_PROTOCOL_MODE, con_handle, instance->hid_protocol_mode); 268 } 269 270 if (att_handle == instance->hid_control_point_value_handle){ 271 if (buffer_size < 1u){ 272 return ATT_ERROR_INVALID_OFFSET; 273 } 274 instance->hid_control_point_suspend = buffer[0]; 275 instance->con_handle = con_handle; 276 log_info("Set suspend tp: %u", instance->hid_control_point_suspend ); 277 if (instance->hid_control_point_suspend == 0u){ 278 hids_device_emit_event(HIDS_SUBEVENT_SUSPEND, con_handle); 279 } else if (instance->hid_control_point_suspend == 1u){ 280 hids_device_emit_event(HIDS_SUBEVENT_EXIT_SUSPEND, con_handle); 281 } 282 } 283 284 hids_device_report_t * report = hids_device_get_report_for_client_configuration_handle(instance, att_handle); 285 if (report != NULL){ 286 uint16_t new_value = little_endian_read_16(buffer, 0); 287 report->client_configuration_value = new_value; 288 log_info("Enable Report (type %u) notifications: %x", (uint8_t) report->type, new_value); 289 290 switch (report->type){ 291 case HID_REPORT_TYPE_INPUT: 292 hids_device_emit_event_with_uint8_uint8_t(HIDS_SUBEVENT_INPUT_REPORT_ENABLE, con_handle, report->id, (uint8_t) new_value); 293 break; 294 case HID_REPORT_TYPE_OUTPUT: 295 hids_device_emit_event_with_uint8_uint8_t(HIDS_SUBEVENT_OUTPUT_REPORT_ENABLE, con_handle, report->id, (uint8_t) new_value); 296 break; 297 case HID_REPORT_TYPE_FEATURE: 298 hids_device_emit_event_with_uint8_uint8_t(HIDS_SUBEVENT_FEATURE_REPORT_ENABLE, con_handle, report->id, (uint8_t) new_value); 299 break; 300 default: 301 btstack_unreachable(); 302 break; 303 } 304 } 305 return 0; 306 } 307 308 void hids_device_init_with_storage(uint8_t hid_country_code, const uint8_t * hid_descriptor, uint16_t hid_descriptor_size, 309 uint16_t num_reports, hids_device_report_t * report_storage){ 310 311 hids_device_t * instance = hids_device_create_instance(); 312 313 btstack_assert(num_reports > 0); 314 btstack_assert(report_storage != NULL); 315 316 instance->hid_country_code = hid_country_code; 317 instance->hid_descriptor = hid_descriptor; 318 instance->hid_descriptor_size = hid_descriptor_size; 319 320 // default 321 instance->hid_protocol_mode = 1; 322 323 // get service handle range 324 uint16_t start_handle = 0; 325 uint16_t end_handle = 0xffff; 326 int service_found = gatt_server_get_handle_range_for_service_with_uuid16(ORG_BLUETOOTH_SERVICE_HUMAN_INTERFACE_DEVICE, &start_handle, &end_handle); 327 btstack_assert(service_found != 0); 328 UNUSED(service_found); 329 330 // get report map handle 331 instance->hid_report_map_handle = gatt_server_get_value_handle_for_characteristic_with_uuid16(start_handle, end_handle, ORG_BLUETOOTH_CHARACTERISTIC_REPORT_MAP); 332 333 // get report map handle 334 instance->hid_protocol_mode_value_handle = gatt_server_get_value_handle_for_characteristic_with_uuid16(start_handle, end_handle, ORG_BLUETOOTH_CHARACTERISTIC_PROTOCOL_MODE); 335 336 // get value and client configuration handles for boot mouse input, boot keyboard input and report input 337 instance->hid_boot_mouse_input_value_handle = gatt_server_get_value_handle_for_characteristic_with_uuid16(start_handle, end_handle, ORG_BLUETOOTH_CHARACTERISTIC_BOOT_MOUSE_INPUT_REPORT); 338 instance->hid_boot_mouse_input_client_configuration_handle = gatt_server_get_client_configuration_handle_for_characteristic_with_uuid16(start_handle, end_handle, ORG_BLUETOOTH_CHARACTERISTIC_BOOT_MOUSE_INPUT_REPORT); 339 340 instance->hid_boot_keyboard_input_value_handle = gatt_server_get_value_handle_for_characteristic_with_uuid16(start_handle, end_handle, ORG_BLUETOOTH_CHARACTERISTIC_BOOT_KEYBOARD_INPUT_REPORT); 341 instance->hid_boot_keyboard_input_client_configuration_handle = gatt_server_get_client_configuration_handle_for_characteristic_with_uuid16(start_handle, end_handle, ORG_BLUETOOTH_CHARACTERISTIC_BOOT_KEYBOARD_INPUT_REPORT); 342 343 instance->hid_control_point_value_handle = gatt_server_get_value_handle_for_characteristic_with_uuid16(start_handle, end_handle, ORG_BLUETOOTH_CHARACTERISTIC_HID_CONTROL_POINT); 344 345 log_info("hid_report_map_handle 0x%02x", instance->hid_report_map_handle); 346 log_info("hid_protocol_mode_value_handle 0x%02x", instance->hid_protocol_mode_value_handle); 347 log_info("hid_boot_mouse_input_value_handle 0x%02x", instance->hid_boot_mouse_input_value_handle); 348 log_info("hid_boot_mouse_input_client_configuration_handle 0x%02x", instance->hid_boot_mouse_input_client_configuration_handle); 349 log_info("hid_boot_keyboard_input_value_handle 0x%02x", instance->hid_boot_keyboard_input_value_handle); 350 log_info("hid_boot_keyboard_input_client_configuration_handle 0x%02x", instance->hid_boot_keyboard_input_client_configuration_handle); 351 log_info("hid_control_point_value_handle 0x%02x", instance->hid_control_point_value_handle); 352 353 instance->hid_reports = report_storage; 354 355 uint16_t hid_reports_num = num_reports; 356 uint16_t assigned_reports_num = 0; 357 uint16_t start_chr_handle = start_handle; 358 359 while ( (start_chr_handle < end_handle) && (assigned_reports_num < hid_reports_num)) { 360 // mandatory 361 uint16_t chr_value_handle = gatt_server_get_value_handle_for_characteristic_with_uuid16(start_chr_handle, end_handle, ORG_BLUETOOTH_CHARACTERISTIC_REPORT); 362 if (chr_value_handle == 0){ 363 break; 364 } 365 366 // optional 367 uint16_t chr_client_configuration_handle = gatt_server_get_client_configuration_handle_for_characteristic_with_uuid16(start_chr_handle, end_handle, ORG_BLUETOOTH_CHARACTERISTIC_REPORT); 368 369 // mandatory 370 uint16_t report_reference_handle = gatt_server_get_descriptor_handle_for_characteristic_with_uuid16(start_chr_handle, end_handle, ORG_BLUETOOTH_CHARACTERISTIC_REPORT, ORG_BLUETOOTH_DESCRIPTOR_REPORT_REFERENCE); 371 if (report_reference_handle == 0){ 372 break; 373 } 374 375 // get report id and type from report reference 376 uint16_t report_reference_value_len; 377 const uint8_t * report_reference_value = gatt_server_get_const_value_for_handle(report_reference_handle, &report_reference_value_len); 378 if (report_reference_value == NULL){ 379 break; 380 } 381 if (report_reference_value_len != 2){ 382 break; 383 } 384 uint8_t report_id = report_reference_value[0]; 385 hid_report_type_t report_type = (hid_report_type_t) report_reference_value[1]; 386 387 // store report info 388 hids_device_report_t * report = &report_storage[assigned_reports_num]; 389 report->value_handle = chr_value_handle; 390 report->client_configuration_handle = chr_client_configuration_handle; 391 report->client_configuration_value = 0; 392 report->id = report_id; 393 report->type = report_type; 394 395 switch (report->type){ 396 case HID_REPORT_TYPE_INPUT: 397 instance->hid_input_reports_num++; 398 break; 399 case HID_REPORT_TYPE_OUTPUT: 400 instance->hid_output_reports_num++; 401 break; 402 case HID_REPORT_TYPE_FEATURE: 403 instance->hid_feature_reports_num++; 404 break; 405 default: 406 btstack_unreachable(); 407 return; 408 } 409 log_info("hid_report_value_handle 0x%02x, id %u, type %u", report->value_handle, report->id, (uint8_t)report->type); 410 if (report->client_configuration_handle != 0){ 411 log_info("hid_report_client_configuration_handle 0x%02x", report->client_configuration_handle); 412 } 413 414 assigned_reports_num++; 415 start_chr_handle = report_reference_handle + 1; 416 } 417 418 // register service with ATT Server 419 hid_service.start_handle = start_handle; 420 hid_service.end_handle = end_handle; 421 hid_service.read_callback = &att_read_callback; 422 hid_service.write_callback = &att_write_callback; 423 att_server_register_service_handler(&hid_service); 424 } 425 426 /** 427 * @brief Set up HIDS Device 428 */ 429 void hids_device_init(uint8_t country_code, const uint8_t * descriptor, uint16_t descriptor_size){ 430 uint16_t hid_reports_num = sizeof(hid_reports_generic_storage) / sizeof(hids_device_report_t); 431 hids_device_init_with_storage(country_code, descriptor, descriptor_size, hid_reports_num, hid_reports_generic_storage); 432 } 433 434 /** 435 * @brief Register callback for the HIDS Device client. 436 * @param callback 437 */ 438 void hids_device_register_packet_handler(btstack_packet_handler_t callback){ 439 packet_handler = callback; 440 } 441 442 /** 443 * @brief Request can send now event to send HID Report 444 * Generates an HIDS_SUBEVENT_CAN_SEND_NOW subevent 445 * @param hid_cid 446 */ 447 void hids_device_request_can_send_now_event(hci_con_handle_t con_handle){ 448 hids_device_t * instance = hids_device_get_instance_for_con_handle(con_handle); 449 if (!instance){ 450 log_error("no instance for handle 0x%02x", con_handle); 451 return; 452 } 453 454 instance->can_send_now_callback.callback = &hids_device_can_send_now; 455 instance->can_send_now_callback.context = (void*) (uintptr_t) con_handle; 456 att_server_register_can_send_now_callback(&instance->can_send_now_callback, con_handle); 457 } 458 459 uint8_t hids_device_send_input_report_for_id(hci_con_handle_t con_handle, uint16_t report_id, const uint8_t * report, uint16_t report_len){ 460 hids_device_t * instance = hids_device_get_instance_for_con_handle(con_handle); 461 if (!instance){ 462 log_error("no instance for handle 0x%02x", con_handle); 463 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 464 } 465 466 hids_device_report_t * report_storage = hids_device_get_report_for_id_and_type(instance, report_id, 467 HID_REPORT_TYPE_INPUT); 468 if (report_storage == NULL){ 469 return ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE; 470 } 471 472 return att_server_notify(con_handle, report_storage->value_handle, report, report_len); 473 } 474 475 uint8_t hids_device_send_input_report(hci_con_handle_t con_handle, const uint8_t * report, uint16_t report_len){ 476 hids_device_t * device = hids_device_get_instance_for_con_handle(con_handle); 477 if (!device){ 478 log_error("no instance for handle 0x%02x", con_handle); 479 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 480 } 481 482 uint8_t pos; 483 uint8_t total_reports = device->hid_input_reports_num + device->hid_output_reports_num + device->hid_feature_reports_num; 484 for (pos = 0 ; pos < total_reports ; pos++){ 485 hids_device_report_t * report_storage = &device->hid_reports[pos]; 486 if (report_storage->type == HID_REPORT_TYPE_INPUT){ 487 return att_server_notify(con_handle, report_storage->value_handle, report, report_len); 488 } 489 } 490 return ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE; 491 } 492 493 /** 494 * @brief Send HID Boot Mouse Input Report 495 */ 496 uint8_t hids_device_send_boot_mouse_input_report(hci_con_handle_t con_handle, const uint8_t * report, uint16_t report_len){ 497 hids_device_t * instance = hids_device_get_instance_for_con_handle(con_handle); 498 if (!instance){ 499 log_error("no instance for handle 0x%02x", con_handle); 500 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 501 } 502 return att_server_notify(con_handle, instance->hid_boot_mouse_input_value_handle, report, report_len); 503 } 504 505 /** 506 * @brief Send HID Boot Mouse Input Report 507 */ 508 uint8_t hids_device_send_boot_keyboard_input_report(hci_con_handle_t con_handle, const uint8_t * report, uint16_t report_len){ 509 hids_device_t * instance = hids_device_get_instance_for_con_handle(con_handle); 510 if (!instance){ 511 log_error("no instance for handle 0x%02x", con_handle); 512 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER; 513 } 514 return att_server_notify(con_handle, instance->hid_boot_keyboard_input_value_handle, report, report_len); 515 } 516