| /* |
| * |
| * Copyright (c) 2021-2022 Project CHIP Authors |
| * Copyright (c) 2020 Nest Labs, Inc. |
| * All rights reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * @file |
| * Provides an implementation of the BLEManager singleton object |
| * for the PSoC6 platform. |
| */ |
| |
| /* this file behaves like a config.h, comes first */ |
| #include <platform/internal/CHIPDeviceLayerInternal.h> |
| |
| #if CHIP_DEVICE_CONFIG_ENABLE_CHIPOBLE |
| |
| #include <ble/CHIPBleServiceData.h> |
| #include <lib/support/CHIPMemString.h> |
| #include <lib/support/CodeUtils.h> |
| #include <lib/support/logging/CHIPLogging.h> |
| #include <platform/internal/BLEManager.h> |
| |
| extern "C" { |
| #include "app_platform_cfg.h" |
| #include "cycfg_bt_settings.h" |
| #include "cycfg_gatt_db.h" |
| } |
| |
| #include "cy_utils.h" |
| #include "wiced_bt_stack.h" |
| |
| #include "wiced_memory.h" |
| #include <wiced_bt_ble.h> |
| #include <wiced_bt_gatt.h> |
| |
| using namespace ::chip; |
| using namespace ::chip::Ble; |
| |
| #define BLE_SERVICE_DATA_SIZE 10 |
| #define BT_STACK_HEAP_SIZE (1024 * 6) |
| typedef void (*pfn_free_buffer_t)(uint8_t *); |
| wiced_bt_heap_t * p_heap = NULL; |
| static bool heap_allocated = false; |
| |
| namespace chip { |
| namespace DeviceLayer { |
| namespace Internal { |
| |
| namespace { |
| const ChipBleUUID chipUUID_CHIPoBLEChar_RX = { { 0x18, 0xEE, 0x2E, 0xF5, 0x26, 0x3D, 0x45, 0x59, 0x95, 0x9F, 0x4F, 0x9C, 0x42, 0x9F, |
| 0x9D, 0x11 } }; |
| |
| const ChipBleUUID ChipUUID_CHIPoBLEChar_TX = { { 0x18, 0xEE, 0x2E, 0xF5, 0x26, 0x3D, 0x45, 0x59, 0x95, 0x9F, 0x4F, 0x9C, 0x42, 0x9F, |
| 0x9D, 0x12 } }; |
| |
| } // unnamed namespace |
| |
| BLEManagerImpl BLEManagerImpl::sInstance; |
| |
| wiced_bt_gatt_status_t app_gatts_callback(wiced_bt_gatt_evt_t event, wiced_bt_gatt_event_data_t * p_data); |
| |
| wiced_result_t BLEManagerImpl::BLEManagerCallback(wiced_bt_management_evt_t event, wiced_bt_management_evt_data_t * p_event_data) |
| { |
| switch (event) |
| { |
| case BTM_ENABLED_EVT: |
| // Post a event to _OnPlatformEvent. |
| { |
| // Register with stack to receive GATT callback |
| wiced_bt_gatt_register(app_gatts_callback); |
| |
| // Inform the stack to use this app GATT database |
| wiced_bt_gatt_db_init(gatt_database, gatt_database_len, NULL); |
| |
| ChipDeviceEvent bleEvent; |
| bleEvent.Type = DeviceEventType::kP6BLEEnabledEvt; |
| if (PlatformMgr().PostEvent(&bleEvent) != CHIP_NO_ERROR) |
| { |
| return WICED_BT_ERROR; |
| } |
| } |
| break; |
| } |
| |
| return WICED_BT_SUCCESS; |
| } |
| |
| uint8_t * BLEManagerImpl::gatt_alloc_buffer(uint16_t len) |
| { |
| uint8_t * p = (uint8_t *) wiced_bt_get_buffer(len); |
| return p; |
| } |
| |
| void BLEManagerImpl::gatt_free_buffer(uint8_t * p_data) |
| { |
| wiced_bt_free_buffer(p_data); |
| } |
| |
| static void gatt_free_buffer_cb(uint8_t * p_data) |
| { |
| BLEManagerImpl::sInstance.gatt_free_buffer(p_data); |
| } |
| |
| CHIP_ERROR BLEManagerImpl::_Init() |
| { |
| CHIP_ERROR err; |
| |
| // Initialize the CHIP BleLayer. |
| err = BleLayer::Init(this, this, &DeviceLayer::SystemLayer()); |
| SuccessOrExit(err); |
| |
| // Configure platform specific settings for Bluetooth |
| cybt_platform_config_init(&bt_platform_cfg_settings); |
| |
| // Initialize the Bluetooth stack with a callback function and stack |
| // configuration structure */ |
| if (WICED_SUCCESS != wiced_bt_stack_init(BLEManagerCallback, &wiced_bt_cfg_settings)) |
| { |
| ChipLogError(DeviceLayer, "Error initializing BT stack\n"); |
| CY_ASSERT(0); |
| } |
| |
| mServiceMode = ConnectivityManager::kCHIPoBLEServiceMode_Enabled; |
| if (CHIP_DEVICE_CONFIG_CHIPOBLE_ENABLE_ADVERTISING_AUTOSTART) |
| { |
| mFlags.Set(Flags::kFlag_AdvertisingEnabled, true); |
| } |
| else |
| { |
| mFlags.Set(Flags::kFlag_AdvertisingEnabled, false); |
| } |
| mNumCons = 0; |
| memset(mCons, 0, sizeof(mCons)); |
| memset(mDeviceName, 0, sizeof(mDeviceName)); |
| |
| ChipLogProgress(DeviceLayer, "BLEManagerImpl::Init() complete"); |
| |
| PlatformMgr().ScheduleWork(DriveBLEState, 0); |
| |
| exit: |
| return err; |
| } |
| |
| bool BLEManagerImpl::_IsAdvertisingEnabled(void) |
| { |
| return mFlags.Has(Flags::kFlag_AdvertisingEnabled); |
| } |
| |
| CHIP_ERROR BLEManagerImpl::_SetAdvertisingEnabled(bool val) |
| { |
| CHIP_ERROR err = CHIP_NO_ERROR; |
| |
| VerifyOrExit(mServiceMode != ConnectivityManager::kCHIPoBLEServiceMode_NotSupported, err = CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE); |
| |
| if (mFlags.Has(Flags::kFlag_AdvertisingEnabled) != val) |
| { |
| mFlags.Set(Flags::kFlag_AdvertisingEnabled, val); |
| PlatformMgr().ScheduleWork(DriveBLEState, 0); |
| } |
| |
| exit: |
| return err; |
| } |
| |
| CHIP_ERROR BLEManagerImpl::_SetAdvertisingMode(BLEAdvertisingMode mode) |
| { |
| (void) (mode); |
| |
| return CHIP_ERROR_NOT_IMPLEMENTED; |
| } |
| |
| CHIP_ERROR BLEManagerImpl::_GetDeviceName(char * buf, size_t bufSize) |
| { |
| if (mServiceMode == ConnectivityManager::kCHIPoBLEServiceMode_NotSupported) |
| { |
| return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE; |
| } |
| if (strlen(mDeviceName) >= bufSize) |
| { |
| return CHIP_ERROR_BUFFER_TOO_SMALL; |
| } |
| strcpy(buf, mDeviceName); |
| ChipLogProgress(DeviceLayer, "Getting device name to : \"%s\"", mDeviceName); |
| return CHIP_NO_ERROR; |
| } |
| |
| CHIP_ERROR BLEManagerImpl::_SetDeviceName(const char * deviceName) |
| { |
| if (mServiceMode == ConnectivityManager::kCHIPoBLEServiceMode_NotSupported) |
| { |
| return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE; |
| } |
| if (deviceName != NULL && deviceName[0] != 0) |
| { |
| if (strlen(deviceName) >= kMaxDeviceNameLength) |
| { |
| return CHIP_ERROR_INVALID_ARGUMENT; |
| } |
| Platform::CopyString(mDeviceName, deviceName); |
| mFlags.Set(Flags::kFlag_DeviceNameSet, true); |
| ChipLogProgress(DeviceLayer, "Setting device name to : \"%s\"", deviceName); |
| } |
| else |
| { |
| wiced_bt_cfg_settings.device_name[0] = 0; |
| mDeviceName[0] = 0; |
| mFlags.Set(Flags::kFlag_DeviceNameSet, false); |
| } |
| |
| return CHIP_NO_ERROR; |
| } |
| |
| uint16_t BLEManagerImpl::_NumConnections(void) |
| { |
| return mNumCons; |
| } |
| |
| void BLEManagerImpl::_OnPlatformEvent(const ChipDeviceEvent * event) |
| { |
| switch (event->Type) |
| { |
| |
| case DeviceEventType::kP6BLEEnabledEvt: |
| mFlags.Set(Flags::kFlag_StackInitialized, true); |
| PlatformMgr().ScheduleWork(DriveBLEState, 0); |
| break; |
| |
| case DeviceEventType::kCHIPoBLESubscribe: |
| HandleSubscribeReceived(event->CHIPoBLESubscribe.ConId, &CHIP_BLE_SVC_ID, &ChipUUID_CHIPoBLEChar_TX); |
| { |
| ChipDeviceEvent _event; |
| _event.Type = DeviceEventType::kCHIPoBLEConnectionEstablished; |
| PlatformMgr().PostEventOrDie(&_event); |
| } |
| break; |
| |
| case DeviceEventType::kCHIPoBLEUnsubscribe: |
| HandleUnsubscribeReceived(event->CHIPoBLEUnsubscribe.ConId, &CHIP_BLE_SVC_ID, &ChipUUID_CHIPoBLEChar_TX); |
| break; |
| |
| case DeviceEventType::kCHIPoBLEWriteReceived: |
| HandleWriteReceived(event->CHIPoBLEWriteReceived.ConId, &CHIP_BLE_SVC_ID, &chipUUID_CHIPoBLEChar_RX, |
| PacketBufferHandle::Adopt(event->CHIPoBLEWriteReceived.Data)); |
| break; |
| |
| case DeviceEventType::kCHIPoBLEIndicateConfirm: |
| HandleIndicationConfirmation(event->CHIPoBLEIndicateConfirm.ConId, &CHIP_BLE_SVC_ID, &ChipUUID_CHIPoBLEChar_TX); |
| break; |
| |
| case DeviceEventType::kCHIPoBLEConnectionError: |
| HandleConnectionError(event->CHIPoBLEConnectionError.ConId, event->CHIPoBLEConnectionError.Reason); |
| break; |
| |
| case DeviceEventType::kServiceProvisioningChange: |
| // Force the advertising state to be refreshed to reflect new provisioning state. |
| mFlags.Set(Flags::kFlag_AdvertisingRefreshNeeded, true); |
| |
| DriveBLEState(); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| bool BLEManagerImpl::SubscribeCharacteristic(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId, const ChipBleUUID * charId) |
| { |
| ChipLogProgress(DeviceLayer, "BLEManagerImpl::SubscribeCharacteristic() not supported"); |
| return false; |
| } |
| |
| bool BLEManagerImpl::UnsubscribeCharacteristic(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId, const ChipBleUUID * charId) |
| { |
| ChipLogProgress(DeviceLayer, "BLEManagerImpl::UnsubscribeCharacteristic() not supported"); |
| return false; |
| } |
| |
| bool BLEManagerImpl::CloseConnection(BLE_CONNECTION_OBJECT conId) |
| { |
| ChipLogProgress(DeviceLayer, "Closing BLE GATT connection (con %u)", conId); |
| |
| // Initiate a GAP disconnect. |
| wiced_bt_gatt_status_t gatt_err = wiced_bt_gatt_disconnect((uint16_t) conId); |
| if (gatt_err != WICED_BT_GATT_SUCCESS) |
| { |
| ChipLogError(DeviceLayer, "wiced_bt_gatt_disconnect() failed: %d", gatt_err); |
| } |
| |
| return (gatt_err == WICED_BT_GATT_SUCCESS); |
| } |
| |
| uint16_t BLEManagerImpl::GetMTU(BLE_CONNECTION_OBJECT conId) const |
| { |
| CHIPoBLEConState * p_conn; |
| |
| /* Check if target connection state exists. */ |
| p_conn = BLEManagerImpl::sInstance.GetConnectionState(conId); |
| |
| if (!p_conn) |
| { |
| return wiced_bt_cfg_settings.p_ble_cfg->ble_max_rx_pdu_size; |
| } |
| else |
| { |
| return p_conn->Mtu; |
| } |
| } |
| |
| bool BLEManagerImpl::SendIndication(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId, const ChipBleUUID * charId, |
| PacketBufferHandle data) |
| { |
| CHIP_ERROR err = CHIP_NO_ERROR; |
| uint16_t dataLen = data->DataLength(); |
| wiced_bt_gatt_status_t gatt_err = WICED_BT_GATT_SUCCESS; |
| CHIPoBLEConState * conState = GetConnectionState(conId); |
| |
| VerifyOrExit(conState != NULL, err = CHIP_ERROR_INVALID_ARGUMENT); |
| |
| #ifdef BLE_DEBUG |
| ChipLogDetail(DeviceLayer, "Sending indication for CHIPoBLE TX characteristic (con %u, len %u)", conId, dataLen); |
| #endif |
| |
| // Send a indication for the CHIPoBLE TX characteristic to the client containing the supplied data. |
| gatt_err = |
| wiced_bt_gatt_server_send_indication((uint16_t) conId, HDLC_CHIP_SERVICE_CHAR_C2_VALUE, dataLen, data->Start(), NULL); |
| |
| exit: |
| if (gatt_err != WICED_BT_GATT_SUCCESS) |
| { |
| ChipLogError(DeviceLayer, "BLEManagerImpl::SendIndication() failed: %d", gatt_err); |
| return false; |
| } |
| return err == CHIP_NO_ERROR; |
| } |
| |
| bool BLEManagerImpl::SendWriteRequest(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId, const ChipBleUUID * charId, |
| PacketBufferHandle data) |
| |
| { |
| ChipLogError(DeviceLayer, "BLEManagerImpl::SendWriteRequest() not supported"); |
| return false; |
| } |
| |
| bool BLEManagerImpl::SendReadRequest(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId, const ChipBleUUID * charId, |
| PacketBufferHandle data) |
| { |
| ChipLogError(DeviceLayer, "BLEManagerImpl::SendReadRequest() not supported"); |
| return false; |
| } |
| |
| bool BLEManagerImpl::SendReadResponse(BLE_CONNECTION_OBJECT conId, BLE_READ_REQUEST_CONTEXT requestContext, |
| const ChipBleUUID * svcId, const ChipBleUUID * charId) |
| { |
| ChipLogError(DeviceLayer, "BLEManagerImpl::SendReadResponse() not supported"); |
| return false; |
| } |
| |
| void BLEManagerImpl::NotifyChipConnectionClosed(BLE_CONNECTION_OBJECT conId) {} |
| |
| void BLEManagerImpl::DriveBLEState(void) |
| { |
| CHIP_ERROR err = CHIP_NO_ERROR; |
| |
| // Exit if Stack not initialized |
| VerifyOrExit(mFlags.Has(Flags::kFlag_StackInitialized), /* */); |
| |
| // Perform any initialization actions that must occur after the CHIP task is running. |
| if (!mFlags.Has(Flags::kFlag_AsyncInitCompleted)) |
| { |
| mFlags.Set(Flags::kFlag_AsyncInitCompleted, true); |
| } |
| |
| // If the application has enabled CHIPoBLE and BLE advertising... |
| if (mServiceMode == ConnectivityManager::kCHIPoBLEServiceMode_Enabled && |
| mFlags.Has(Flags::kFlag_AdvertisingEnabled) |
| #if CHIP_DEVICE_CONFIG_CHIPOBLE_SINGLE_CONNECTION |
| // and no connections are active... |
| && (mNumCons == 0) |
| #endif |
| ) |
| { |
| // Start/re-start SoftDevice advertising if not already advertising, or if the |
| // advertising state of the SoftDevice needs to be refreshed. |
| if (!mFlags.Has(Flags::kFlag_Advertising) || mFlags.Has(Flags::kFlag_AdvertisingRefreshNeeded)) |
| { |
| ChipLogProgress(DeviceLayer, "CHIPoBLE advertising started"); |
| |
| mFlags.Set(Flags::kFlag_Advertising, true); |
| mFlags.Set(Flags::kFlag_AdvertisingRefreshNeeded, false); |
| |
| SetAdvertisingData(); |
| |
| wiced_bt_start_advertisements(BTM_BLE_ADVERT_UNDIRECTED_HIGH, BLE_ADDR_PUBLIC, NULL); |
| |
| // Post a CHIPoBLEAdvertisingChange(Started) event. |
| { |
| ChipDeviceEvent advChange; |
| advChange.Type = DeviceEventType::kCHIPoBLEAdvertisingChange; |
| advChange.CHIPoBLEAdvertisingChange.Result = kActivity_Started; |
| err = PlatformMgr().PostEvent(&advChange); |
| } |
| } |
| } |
| |
| // Otherwise, stop advertising if currently active. |
| else |
| { |
| if (mFlags.Has(Flags::kFlag_Advertising)) |
| { |
| mFlags.Set(Flags::kFlag_Advertising, false); |
| |
| ChipLogProgress(DeviceLayer, "CHIPoBLE stop advertising"); |
| wiced_bt_start_advertisements(BTM_BLE_ADVERT_OFF, BLE_ADDR_PUBLIC, NULL); |
| |
| /* Delete the heap allocated during BLE Advertisment Stop */ |
| if (p_heap) |
| { |
| wiced_bt_delete_heap(p_heap); |
| heap_allocated = false; |
| } |
| } |
| } |
| |
| exit: |
| if (err != CHIP_NO_ERROR) |
| { |
| ChipLogError(DeviceLayer, "Disabling CHIPoBLE service due to error: %s", ErrorStr(err)); |
| mServiceMode = ConnectivityManager::kCHIPoBLEServiceMode_Disabled; |
| } |
| } |
| |
| /* |
| * This function searches through the GATT DB to point to the attribute |
| * corresponding to the given handle |
| */ |
| gatt_db_lookup_table_t * BLEManagerImpl::GetGattAttr(uint16_t handle) |
| { |
| /* Search for the given handle in the GATT DB and return the pointer to the |
| correct attribute */ |
| uint8_t array_index = 0; |
| |
| for (array_index = 0; array_index < app_gatt_db_ext_attr_tbl_size; array_index++) |
| { |
| if (app_gatt_db_ext_attr_tbl[array_index].handle == handle) |
| { |
| return (&app_gatt_db_ext_attr_tbl[array_index]); |
| } |
| } |
| return NULL; |
| } |
| |
| wiced_bt_gatt_status_t BLEManagerImpl::HandleGattServiceRead(uint16_t conn_id, wiced_bt_gatt_opcode_t opcode, |
| wiced_bt_gatt_read_t * p_read_req, uint16_t len_requested) |
| { |
| gatt_db_lookup_table_t * p_attribute; |
| uint8_t * from; |
| |
| if ((p_attribute = GetGattAttr(p_read_req->handle)) == NULL) |
| { |
| ChipLogError(DeviceLayer, "[%s] attr not found handle: 0x%04x\n", __FUNCTION__, p_read_req->handle); |
| wiced_bt_gatt_server_send_error_rsp(conn_id, opcode, p_read_req->handle, WICED_BT_GATT_INVALID_HANDLE); |
| return WICED_BT_GATT_INVALID_HANDLE; |
| } |
| |
| if (p_read_req->offset >= p_attribute->cur_len) |
| { |
| ChipLogError(DeviceLayer, "[%s] offset:%d larger than attribute length:%d\n", __FUNCTION__, p_read_req->offset, |
| p_attribute->cur_len); |
| |
| wiced_bt_gatt_server_send_error_rsp(conn_id, opcode, p_read_req->handle, WICED_BT_GATT_INVALID_OFFSET); |
| return (WICED_BT_GATT_INVALID_OFFSET); |
| } |
| else if (len_requested + p_read_req->offset > p_attribute->cur_len) |
| { |
| len_requested = p_attribute->cur_len - p_read_req->offset; |
| } |
| |
| from = ((uint8_t *) p_attribute->p_data) + p_read_req->offset; |
| |
| wiced_bt_gatt_server_send_read_handle_rsp(conn_id, opcode, len_requested, from, NULL); |
| |
| return WICED_BT_GATT_SUCCESS; |
| } |
| /* |
| * Currently there is no reason to pass Read Req by type handler to CHIP. Only process request for |
| * attributes in the GATT DB attribute table |
| */ |
| wiced_bt_gatt_status_t BLEManagerImpl::HandleGattServiceReadByTypeHandler(uint16_t conn_id, wiced_bt_gatt_opcode_t opcode, |
| wiced_bt_gatt_read_by_type_t * p_read_req, |
| uint16_t len_requested) |
| { |
| gatt_db_lookup_table_t * puAttribute; |
| uint16_t attr_handle = p_read_req->s_handle; |
| uint8_t * p_rsp = NULL; |
| uint8_t pair_len = 0; |
| int used = 0; |
| |
| if (heap_allocated == false) |
| { |
| p_heap = wiced_bt_create_heap("default_heap", NULL, BT_STACK_HEAP_SIZE, NULL, WICED_TRUE); |
| heap_allocated = true; |
| } |
| |
| /* Allocate buffer for GATT Read */ |
| p_rsp = gatt_alloc_buffer(len_requested); |
| if (p_rsp == NULL) |
| { |
| ChipLogError(DeviceLayer, "[%s] no memory len_requested: %d!!\n", __FUNCTION__, len_requested); |
| wiced_bt_gatt_server_send_error_rsp(conn_id, opcode, attr_handle, WICED_BT_GATT_INSUF_RESOURCE); |
| return WICED_BT_GATT_INSUF_RESOURCE; |
| } |
| |
| /* Read by type returns all attributes of the specified type, between the start and end handles */ |
| while (WICED_TRUE) |
| { |
| attr_handle = wiced_bt_gatt_find_handle_by_type(attr_handle, p_read_req->e_handle, &p_read_req->uuid); |
| |
| if (attr_handle == 0) |
| break; |
| |
| if ((puAttribute = GetGattAttr(attr_handle)) == NULL) |
| { |
| ChipLogError(DeviceLayer, "[%s] found type but no attribute ??\n", __FUNCTION__); |
| wiced_bt_gatt_server_send_error_rsp(conn_id, opcode, p_read_req->s_handle, WICED_BT_GATT_ERR_UNLIKELY); |
| gatt_free_buffer(p_rsp); |
| return WICED_BT_GATT_INVALID_HANDLE; |
| } |
| |
| { |
| int filled = wiced_bt_gatt_put_read_by_type_rsp_in_stream(p_rsp + used, len_requested - used, &pair_len, attr_handle, |
| puAttribute->cur_len, puAttribute->p_data); |
| if (filled == 0) |
| { |
| break; |
| } |
| used += filled; |
| } |
| |
| /* Increment starting handle for next search to one past current */ |
| attr_handle++; |
| } |
| |
| if (used == 0) |
| { |
| ChipLogError(DeviceLayer, "[%s] attr not found start_handle: 0x%04x end_handle: 0x%04x Type: 0x%04x\n", __FUNCTION__, |
| p_read_req->s_handle, p_read_req->e_handle, p_read_req->uuid.uu.uuid16); |
| wiced_bt_gatt_server_send_error_rsp(conn_id, opcode, p_read_req->s_handle, WICED_BT_GATT_INVALID_HANDLE); |
| gatt_free_buffer(p_rsp); |
| return WICED_BT_GATT_INVALID_HANDLE; |
| } |
| |
| /* Send the response */ |
| wiced_bt_gatt_server_send_read_by_type_rsp(conn_id, opcode, pair_len, used, p_rsp, |
| (wiced_bt_gatt_app_context_t) gatt_free_buffer_cb); |
| |
| return WICED_BT_GATT_SUCCESS; |
| } |
| |
| /* |
| * If Attribute is for CHIP, pass it through. Otherwise process request for |
| * attributes in the GATT DB attribute table. |
| */ |
| wiced_bt_gatt_status_t BLEManagerImpl::HandleGattServiceWrite(uint16_t conn_id, wiced_bt_gatt_write_req_t * p_data) |
| { |
| wiced_bt_gatt_status_t result = WICED_BT_GATT_SUCCESS; |
| gatt_db_lookup_table_t * puAttribute; |
| const uint16_t valLen = p_data->val_len; |
| // special handling for CHIP RX path |
| if (p_data->handle == HDLC_CHIP_SERVICE_CHAR_C1_VALUE) |
| { |
| System::PacketBufferHandle buf; |
| |
| buf = System::PacketBufferHandle::NewWithData(p_data->p_val, valLen, 0, 0); |
| if (!buf.IsNull()) |
| { |
| #ifdef BLE_DEBUG |
| ChipLogDetail(DeviceLayer, "Write received for CHIPoBLE RX characteristic con %04x len %d", conn_id, valLen); |
| #endif |
| // Post an event to the CHIP queue to deliver the data into the CHIP stack. |
| { |
| ChipDeviceEvent event; |
| event.Type = DeviceEventType::kCHIPoBLEWriteReceived; |
| event.CHIPoBLEWriteReceived.ConId = conn_id; |
| event.CHIPoBLEWriteReceived.Data = std::move(buf).UnsafeRelease(); |
| CHIP_ERROR status = PlatformMgr().PostEvent(&event); |
| if (status != CHIP_NO_ERROR) |
| { |
| result = WICED_BT_GATT_INTERNAL_ERROR; |
| } |
| buf = NULL; |
| } |
| } |
| else |
| { |
| ChipLogError(DeviceLayer, "BLEManagerImpl: Out of buffers during CHIPoBLE RX"); |
| result = WICED_BT_GATT_NO_RESOURCES; |
| } |
| } |
| else |
| { |
| ChipLogDetail(DeviceLayer, "Write received for CHIPoBLE RX characteristic con:%04x handle:%04x len:%d", conn_id, |
| p_data->handle, valLen); |
| |
| /* Get the right address for the handle in Gatt DB */ |
| if (NULL == (puAttribute = GetGattAttr(p_data->handle))) |
| { |
| ChipLogError(DeviceLayer, "BLEManagerImpl: Write wrong handle:%04x", p_data->handle); |
| return WICED_BT_GATT_INVALID_HANDLE; |
| } |
| puAttribute->cur_len = valLen > puAttribute->max_len ? puAttribute->max_len : valLen; |
| memcpy(puAttribute->p_data, p_data->p_val, puAttribute->cur_len); |
| |
| // Post an event to the Chip queue to process either a CHIPoBLE Subscribe or Unsubscribe based on |
| // whether the client is enabling or disabling indications. |
| if (p_data->handle == HDLD_CHIP_SERVICE_RX_CLIENT_CHAR_CONFIG) |
| { |
| ChipDeviceEvent event; |
| event.Type = (app_chip_service_char_tx_client_char_config[0] != 0) ? DeviceEventType::kCHIPoBLESubscribe |
| : DeviceEventType::kCHIPoBLEUnsubscribe; |
| event.CHIPoBLESubscribe.ConId = conn_id; |
| if (PlatformMgr().PostEvent(&event) != CHIP_NO_ERROR) |
| { |
| return WICED_BT_GATT_INTERNAL_ERROR; |
| } |
| } |
| |
| ChipLogProgress(DeviceLayer, "CHIPoBLE %s received", |
| app_chip_service_char_tx_client_char_config[0] != 0 ? "subscribe" : "unsubscribe"); |
| } |
| return result; |
| } |
| |
| /* |
| * Process MTU request received from the GATT client |
| */ |
| wiced_bt_gatt_status_t BLEManagerImpl::HandleGattServiceMtuReq(uint16_t conn_id, uint16_t mtu) |
| { |
| wiced_bt_gatt_server_send_mtu_rsp(conn_id, mtu, wiced_bt_cfg_settings.p_ble_cfg->ble_max_rx_pdu_size); |
| return WICED_BT_GATT_SUCCESS; |
| } |
| |
| /* |
| * Process GATT Indication Confirm from the client |
| */ |
| wiced_bt_gatt_status_t BLEManagerImpl::HandleGattServiceIndCfm(uint16_t conn_id, uint16_t handle) |
| { |
| #ifdef BLE_DEBUG |
| ChipLogDetail(DeviceLayer, "GATT Ind Cfm received con:%04x handle:%d", conn_id, handle); |
| #endif |
| if (handle == HDLC_CHIP_SERVICE_CHAR_C2_VALUE) |
| { |
| ChipDeviceEvent event; |
| event.Type = DeviceEventType::kCHIPoBLEIndicateConfirm; |
| event.CHIPoBLEIndicateConfirm.ConId = conn_id; |
| if (PlatformMgr().PostEvent(&event) != CHIP_NO_ERROR) |
| { |
| return WICED_BT_GATT_INTERNAL_ERROR; |
| } |
| } |
| return WICED_BT_GATT_SUCCESS; |
| } |
| |
| /* |
| * Process GATT attribute requests |
| */ |
| wiced_bt_gatt_status_t BLEManagerImpl::HandleGattServiceRequestEvent(wiced_bt_gatt_attribute_request_t * p_request, |
| CHIPoBLEConState * p_conn) |
| { |
| wiced_bt_gatt_status_t result = WICED_BT_GATT_INVALID_PDU; |
| switch (p_request->opcode) |
| { |
| case GATT_REQ_READ: |
| case GATT_REQ_READ_BLOB: |
| result = |
| HandleGattServiceRead(p_request->conn_id, p_request->opcode, &(p_request->data.read_req), p_request->len_requested); |
| break; |
| case GATT_REQ_READ_BY_TYPE: |
| result = HandleGattServiceReadByTypeHandler(p_request->conn_id, p_request->opcode, &p_request->data.read_by_type, |
| p_request->len_requested); |
| break; |
| case GATT_REQ_WRITE: |
| case GATT_CMD_WRITE: |
| result = HandleGattServiceWrite(p_request->conn_id, &(p_request->data.write_req)); |
| if ((p_request->opcode == GATT_REQ_WRITE) && (result == WICED_BT_GATT_SUCCESS)) |
| { |
| wiced_bt_gatt_write_req_t * p_write_request = &p_request->data.write_req; |
| wiced_bt_gatt_server_send_write_rsp(p_request->conn_id, p_request->opcode, p_write_request->handle); |
| } |
| break; |
| |
| case GATT_REQ_MTU: |
| result = HandleGattServiceMtuReq(p_request->conn_id, p_request->data.remote_mtu); |
| break; |
| |
| case GATT_HANDLE_VALUE_CONF: |
| result = HandleGattServiceIndCfm(p_request->conn_id, p_request->data.confirm.handle); |
| break; |
| |
| default: |
| break; |
| } |
| |
| return result; |
| } |
| |
| /* |
| * Handle GATT connection events from the stack |
| */ |
| wiced_bt_gatt_status_t BLEManagerImpl::HandleGattConnectEvent(wiced_bt_gatt_connection_status_t * p_conn_status, |
| CHIPoBLEConState * p_conn) |
| { |
| if (p_conn_status->connected) |
| { |
| /* Device got connected */ |
| p_conn->connected = true; |
| ChipLogProgress(DeviceLayer, "BLE GATT connection up (con %u)", p_conn_status->conn_id); |
| } |
| else /* Device got disconnected */ |
| { |
| ChipDeviceEvent event; |
| event.Type = DeviceEventType::kCHIPoBLEConnectionError; |
| event.CHIPoBLEConnectionError.ConId = p_conn_status->conn_id; |
| |
| switch (p_conn_status->reason) |
| { |
| case GATT_CONN_TERMINATE_PEER_USER: |
| event.CHIPoBLEConnectionError.Reason = BLE_ERROR_REMOTE_DEVICE_DISCONNECTED; |
| break; |
| |
| case GATT_CONN_TERMINATE_LOCAL_HOST: |
| event.CHIPoBLEConnectionError.Reason = BLE_ERROR_APP_CLOSED_CONNECTION; |
| break; |
| |
| default: |
| event.CHIPoBLEConnectionError.Reason = BLE_ERROR_CHIPOBLE_PROTOCOL_ABORT; |
| break; |
| } |
| |
| ChipLogProgress(DeviceLayer, "BLE GATT connection closed (con %u, reason %u)", p_conn_status->conn_id, |
| p_conn_status->reason); |
| |
| if (PlatformMgr().PostEvent(&event) != CHIP_NO_ERROR) |
| { |
| return WICED_BT_GATT_INTERNAL_ERROR; |
| } |
| |
| // Arrange to re-enable connectable advertising in case it was disabled due to the |
| // maximum connection limit being reached. |
| mFlags.Set(Flags::kFlag_Advertising, false); |
| PlatformMgr().ScheduleWork(DriveBLEState, 0); |
| |
| ReleaseConnectionState(p_conn->ConId); |
| } |
| return WICED_BT_GATT_SUCCESS; |
| } |
| |
| /* |
| * Process GATT requests. Callback is received in the BT stack thread context. |
| * |
| */ |
| wiced_bt_gatt_status_t app_gatts_callback(wiced_bt_gatt_evt_t event, wiced_bt_gatt_event_data_t * p_data) |
| { |
| uint16_t conn_id; |
| BLEManagerImpl::CHIPoBLEConState * p_conn; |
| |
| /* Check parameter. */ |
| if (!p_data) |
| { |
| return WICED_BT_GATT_ILLEGAL_PARAMETER; |
| } |
| |
| /* Check if target connection state exists. */ |
| switch (event) |
| { |
| case GATT_CONNECTION_STATUS_EVT: |
| conn_id = p_data->connection_status.conn_id; |
| break; |
| |
| case GATT_OPERATION_CPLT_EVT: |
| conn_id = p_data->operation_complete.conn_id; |
| break; |
| |
| case GATT_DISCOVERY_RESULT_EVT: |
| conn_id = p_data->discovery_result.conn_id; |
| break; |
| |
| case GATT_DISCOVERY_CPLT_EVT: |
| conn_id = p_data->discovery_complete.conn_id; |
| break; |
| |
| case GATT_ATTRIBUTE_REQUEST_EVT: |
| conn_id = p_data->attribute_request.conn_id; |
| break; |
| |
| case GATT_CONGESTION_EVT: |
| conn_id = p_data->congestion.conn_id; |
| break; |
| |
| case GATT_GET_RESPONSE_BUFFER_EVT: |
| if (heap_allocated == false) |
| { |
| p_heap = wiced_bt_create_heap("default_heap", NULL, BT_STACK_HEAP_SIZE, NULL, WICED_TRUE); |
| heap_allocated = true; |
| } |
| p_data->buffer_request.buffer.p_app_rsp_buffer = |
| BLEManagerImpl::sInstance.gatt_alloc_buffer(p_data->buffer_request.len_requested); |
| p_data->buffer_request.buffer.p_app_ctxt = (wiced_bt_gatt_app_context_t) gatt_free_buffer_cb; |
| return WICED_BT_GATT_SUCCESS; |
| break; |
| |
| case GATT_APP_BUFFER_TRANSMITTED_EVT: { |
| pfn_free_buffer_t pfn_free = (pfn_free_buffer_t) p_data->buffer_xmitted.p_app_ctxt; |
| if (pfn_free) |
| { |
| pfn_free(p_data->buffer_xmitted.p_app_data); |
| } |
| } |
| return WICED_BT_GATT_SUCCESS; |
| break; |
| |
| default: |
| return WICED_BT_GATT_ILLEGAL_PARAMETER; |
| } |
| |
| p_conn = BLEManagerImpl::sInstance.GetConnectionState(conn_id); |
| |
| /* Allocate connection state if no exist. */ |
| if (!p_conn) |
| { |
| p_conn = BLEManagerImpl::sInstance.AllocConnectionState(conn_id); |
| |
| if (!p_conn) |
| { |
| return WICED_BT_GATT_INSUF_RESOURCE; |
| } |
| } |
| |
| switch (event) |
| { |
| case GATT_CONNECTION_STATUS_EVT: |
| return BLEManagerImpl::sInstance.HandleGattConnectEvent(&p_data->connection_status, p_conn); |
| |
| case GATT_ATTRIBUTE_REQUEST_EVT: |
| return BLEManagerImpl::sInstance.HandleGattServiceRequestEvent(&p_data->attribute_request, p_conn); |
| |
| default: |
| break; |
| } |
| |
| return WICED_BT_GATT_ILLEGAL_PARAMETER; |
| } |
| |
| void BLEManagerImpl::SetAdvertisingData(void) |
| { |
| CHIP_ERROR err; |
| wiced_bt_ble_advert_elem_t adv_elem[4]; |
| uint8_t num_elem = 0; |
| uint8_t flag = BTM_BLE_GENERAL_DISCOVERABLE_FLAG | BTM_BLE_BREDR_NOT_SUPPORTED; |
| uint8_t chip_service_uuid[2] = { BIT16_TO_8(__UUID16_CHIPoBLEService) }; |
| ChipBLEDeviceIdentificationInfo mDeviceIdInfo; |
| uint16_t deviceDiscriminator = 0; |
| uint8_t localDeviceNameLen; |
| uint8_t service_data[BLE_SERVICE_DATA_SIZE]; |
| uint8_t * p = service_data; |
| |
| static_assert(BLE_SERVICE_DATA_SIZE == sizeof(ChipBLEDeviceIdentificationInfo) + 2, "BLE Service Data Size is incorrect"); |
| |
| // Initialize the CHIP BLE Device Identification Information block that will be sent as payload |
| // within the BLE service advertisement data. |
| err = ConfigurationMgr().GetBLEDeviceIdentificationInfo(mDeviceIdInfo); |
| SuccessOrExit(err); |
| |
| // Get device discriminator |
| deviceDiscriminator = mDeviceIdInfo.GetDeviceDiscriminator(); |
| |
| // Verify device name was not already set |
| if (!sInstance.mFlags.Has(sInstance.Flags::kFlag_DeviceNameSet)) |
| { |
| /* Default device name is CHIP-<DISCRIMINATOR> */ |
| memset(sInstance.mDeviceName, 0, kMaxDeviceNameLength); |
| snprintf(sInstance.mDeviceName, kMaxDeviceNameLength, "%s%04u", CHIP_DEVICE_CONFIG_BLE_DEVICE_NAME_PREFIX, |
| deviceDiscriminator); |
| localDeviceNameLen = strlen(sInstance.mDeviceName); |
| |
| Platform::CopyString((char *) app_gap_device_name, sizeof(app_gap_device_name), sInstance.mDeviceName); |
| app_gatt_db_ext_attr_tbl[0].cur_len = app_gatt_db_ext_attr_tbl[0].max_len < strlen(sInstance.mDeviceName) |
| ? app_gatt_db_ext_attr_tbl[0].max_len |
| : strlen(sInstance.mDeviceName); |
| |
| ChipLogProgress(DeviceLayer, "SetAdvertisingData: device name set: %s", sInstance.mDeviceName); |
| } |
| else |
| { |
| localDeviceNameLen = strlen(sInstance.mDeviceName); |
| } |
| |
| /* First element is the advertisement flags */ |
| adv_elem[num_elem].advert_type = BTM_BLE_ADVERT_TYPE_FLAG; |
| adv_elem[num_elem].len = sizeof(uint8_t); |
| adv_elem[num_elem].p_data = &flag; |
| num_elem++; |
| |
| /* Second element is the service data for CHIP service */ |
| adv_elem[num_elem].advert_type = BTM_BLE_ADVERT_TYPE_SERVICE_DATA; |
| adv_elem[num_elem].len = sizeof(service_data); |
| adv_elem[num_elem].p_data = service_data; |
| num_elem++; |
| UINT8_TO_STREAM(p, chip_service_uuid[0]); |
| UINT8_TO_STREAM(p, chip_service_uuid[1]); |
| UINT8_TO_STREAM(p, 0); // CHIP BLE Opcode == 0x00 (Uncommissioned) |
| UINT16_TO_STREAM(p, deviceDiscriminator); |
| UINT8_TO_STREAM(p, mDeviceIdInfo.DeviceVendorId[0]); |
| UINT8_TO_STREAM(p, mDeviceIdInfo.DeviceVendorId[1]); |
| UINT8_TO_STREAM(p, mDeviceIdInfo.DeviceProductId[0]); |
| UINT8_TO_STREAM(p, mDeviceIdInfo.DeviceProductId[1]); |
| UINT8_TO_STREAM(p, 0); // Additional Data Flag |
| |
| adv_elem[num_elem].advert_type = BTM_BLE_ADVERT_TYPE_NAME_COMPLETE; |
| adv_elem[num_elem].len = localDeviceNameLen; |
| adv_elem[num_elem].p_data = (uint8_t *) sInstance.mDeviceName; |
| num_elem++; |
| |
| wiced_bt_ble_set_raw_advertisement_data(num_elem, adv_elem); |
| |
| /* Configure Scan Response data */ |
| num_elem = 0; |
| adv_elem[num_elem].advert_type = BTM_BLE_ADVERT_TYPE_NAME_COMPLETE; |
| adv_elem[num_elem].len = localDeviceNameLen; |
| adv_elem[num_elem].p_data = (uint8_t *) sInstance.mDeviceName; |
| num_elem++; |
| |
| wiced_bt_ble_set_raw_scan_response_data(num_elem, adv_elem); |
| |
| exit: |
| ChipLogProgress(DeviceLayer, "BLEManagerImpl::SetAdvertisingData err:%s", ErrorStr(err)); |
| } |
| |
| BLEManagerImpl::CHIPoBLEConState * BLEManagerImpl::AllocConnectionState(uint16_t conId) |
| { |
| for (uint16_t i = 0; i < kMaxConnections; i++) |
| { |
| if (mCons[i].connected == false) |
| { |
| mCons[i].ConId = conId; |
| mCons[i].Mtu = wiced_bt_cfg_settings.p_ble_cfg->ble_max_rx_pdu_size; |
| mCons[i].connected = false; |
| |
| mNumCons++; |
| |
| return &mCons[i]; |
| } |
| } |
| ChipLogError(DeviceLayer, "Failed to allocate CHIPoBLEConState"); |
| return NULL; |
| } |
| |
| BLEManagerImpl::CHIPoBLEConState * BLEManagerImpl::GetConnectionState(uint16_t conId) |
| { |
| for (uint16_t i = 0; i < kMaxConnections; i++) |
| { |
| if (mCons[i].ConId == conId) |
| { |
| return &mCons[i]; |
| } |
| } |
| ChipLogError(DeviceLayer, "Failed to find CHIPoBLEConState"); |
| return NULL; |
| } |
| |
| bool BLEManagerImpl::ReleaseConnectionState(uint16_t conId) |
| { |
| for (uint16_t i = 0; i < kMaxConnections; i++) |
| { |
| if (mCons[i].ConId == conId) |
| { |
| memset(&mCons[i], 0, sizeof(CHIPoBLEConState)); |
| mNumCons--; |
| return true; |
| } |
| } |
| ChipLogError(DeviceLayer, "Failed to delete CHIPoBLEConState"); |
| return false; |
| } |
| |
| void BLEManagerImpl::DriveBLEState(intptr_t arg) |
| { |
| sInstance.DriveBLEState(); |
| } |
| |
| } // namespace Internal |
| } // namespace DeviceLayer |
| } // namespace chip |
| |
| #endif |
