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BLEManagerImpl.cpp
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/*
*
* Copyright (c) 2020-2021 Project CHIP Authors
* Copyright (c) 2019 Nest Labs, Inc.
*
* 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 Silicon Labs EFR32 platforms.
*/
/* this file behaves like a config.h, comes first */
#include <platform/internal/CHIPDeviceLayerInternal.h>
#if CHIP_DEVICE_CONFIG_ENABLE_CHIPOBLE
#include "wfx_sl_ble_init.h"
#include <ble/Ble.h>
#include <crypto/RandUtils.h>
#include <lib/support/CodeUtils.h>
#include <lib/support/logging/CHIPLogging.h>
#include <platform/CommissionableDataProvider.h>
#include <platform/DeviceInstanceInfoProvider.h>
#include <platform/internal/BLEManager.h>
#if CHIP_ENABLE_ADDITIONAL_DATA_ADVERTISING
#include <setup_payload/AdditionalDataPayloadGenerator.h>
#endif
extern "C" {
#if !(SLI_SI91X_MCU_INTERFACE | EXP_BOARD)
#include <rsi_driver.h>
#endif
#include <rsi_utils.h>
}
#define BLE_MIN_CONNECTION_INTERVAL_MS 24
#define BLE_MAX_CONNECTION_INTERVAL_MS 40
#define BLE_SLAVE_LATENCY_MS 0
#define BLE_TIMEOUT_MS 400
#define BLE_SEND_INDICATION_TIMER_PERIOD_MS (5000)
using namespace ::chip;
using namespace ::chip::Ble;
using namespace ::chip::DeviceLayer::Internal;
namespace chip {
namespace DeviceLayer {
namespace Internal {
namespace {
#define CHIP_ADV_DATA_TYPE_FLAGS 0x01
#define CHIP_ADV_DATA_TYPE_UUID 0x03
#define CHIP_ADV_DATA_TYPE_NAME 0x09
#define CHIP_ADV_DATA_TYPE_SERVICE_DATA 0x16
#define CHIP_ADV_DATA_FLAGS 0x06
#define CHIP_ADV_DATA 0
#define CHIP_ADV_SCAN_RESPONSE_DATA 1
#define CHIP_ADV_SHORT_UUID_LEN 2
#define MAX_RESPONSE_DATA_LEN 31
#define MAX_ADV_DATA_LEN 31
// Timer Frequency used.
#define TIMER_CLK_FREQ ((uint32_t) 32768)
// Convert msec to timer ticks.
#define TIMER_MS_2_TIMERTICK(ms) ((TIMER_CLK_FREQ * ms) / 1000)
#define TIMER_S_2_TIMERTICK(s) (TIMER_CLK_FREQ * s)
const uint8_t UUID_CHIPoBLEService[] = { 0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80,
0x00, 0x10, 0x00, 0x00, 0xF6, 0xFF, 0x00, 0x00 };
const uint8_t ShortUUID_CHIPoBLEService[] = { 0xF6, 0xFF };
// Used to send the Indication Confirmation
uint8_t dev_address[RSI_DEV_ADDR_LEN];
uint16_t rsi_ble_measurement_hndl;
uint16_t rsi_ble_gatt_server_client_config_hndl;
osTimerId_t sbleAdvTimeoutTimer;
osThreadId_t sBleThread;
constexpr uint32_t kBleTaskSize = 2560;
uint8_t bleStack[kBleTaskSize];
osThread_t sBleTaskControlBlock;
constexpr osThreadAttr_t kBleTaskAttr = { .name = "rsi_ble",
.attr_bits = osThreadDetached,
.cb_mem = &sBleTaskControlBlock,
.cb_size = osThreadCbSize,
.stack_mem = bleStack,
.stack_size = kBleTaskSize,
.priority = osPriorityHigh };
void rsi_ble_add_matter_service(void)
{
constexpr uuid_t custom_service = { .size = RSI_BLE_MATTER_CUSTOM_SERVICE_SIZE,
.val = { .val16 = RSI_BLE_MATTER_CUSTOM_SERVICE_VALUE_16 } };
uint8_t data[RSI_BLE_MATTER_CUSTOM_SERVICE_DATA_LENGTH] = { RSI_BLE_MATTER_CUSTOM_SERVICE_DATA };
constexpr uuid_t custom_characteristic_RX = { .size = RSI_BLE_CUSTOM_CHARACTERISTIC_RX_SIZE,
.reserved = { RSI_BLE_CUSTOM_CHARACTERISTIC_RX_RESERVED },
.val = { .val128 = {
.data1 = { RSI_BLE_CUSTOM_CHARACTERISTIC_RX_VALUE_128_DATA_1 },
.data2 = { RSI_BLE_CUSTOM_CHARACTERISTIC_RX_VALUE_128_DATA_2 },
.data3 = { RSI_BLE_CUSTOM_CHARACTERISTIC_RX_VALUE_128_DATA_3 },
.data4 = { RSI_BLE_CUSTOM_CHARACTERISTIC_RX_VALUE_128_DATA_4 } } } };
rsi_ble_resp_add_serv_t new_serv_resp = { 0 };
rsi_ble_add_service(custom_service, &new_serv_resp);
// Adding custom characteristic declaration to the custom service
SilabsBleWrapper::rsi_ble_add_char_serv_att(
new_serv_resp.serv_handler, new_serv_resp.start_handle + RSI_BLE_CHARACTERISTIC_RX_ATTRIBUTE_HANDLE_LOCATION,
RSI_BLE_ATT_PROPERTY_WRITE | RSI_BLE_ATT_PROPERTY_READ, // Set read, write, write without response
new_serv_resp.start_handle + RSI_BLE_CHARACTERISTIC_RX_VALUE_HANDLE_LOCATION, custom_characteristic_RX);
// Adding characteristic value attribute to the service
SilabsBleWrapper::rsi_ble_add_char_val_att(
new_serv_resp.serv_handler, new_serv_resp.start_handle + RSI_BLE_CHARACTERISTIC_RX_VALUE_HANDLE_LOCATION,
custom_characteristic_RX,
RSI_BLE_ATT_PROPERTY_WRITE | RSI_BLE_ATT_PROPERTY_READ, // Set read, write, write without response
data, sizeof(data), ATT_REC_IN_HOST);
constexpr uuid_t custom_characteristic_TX = { .size = RSI_BLE_CUSTOM_CHARACTERISTIC_TX_SIZE,
.reserved = { RSI_BLE_CUSTOM_CHARACTERISTIC_TX_RESERVED },
.val = { .val128 = {
.data1 = { RSI_BLE_CUSTOM_CHARACTERISTIC_TX_VALUE_128_DATA_1 },
.data2 = { RSI_BLE_CUSTOM_CHARACTERISTIC_TX_VALUE_128_DATA_2 },
.data3 = { RSI_BLE_CUSTOM_CHARACTERISTIC_TX_VALUE_128_DATA_3 },
.data4 = { RSI_BLE_CUSTOM_CHARACTERISTIC_TX_VALUE_128_DATA_4 } } } };
// Adding custom characteristic declaration to the custom service
SilabsBleWrapper::rsi_ble_add_char_serv_att(
new_serv_resp.serv_handler, new_serv_resp.start_handle + RSI_BLE_CHARACTERISTIC_TX_ATTRIBUTE_HANDLE_LOCATION,
RSI_BLE_ATT_PROPERTY_WRITE_NO_RESPONSE | RSI_BLE_ATT_PROPERTY_WRITE | RSI_BLE_ATT_PROPERTY_READ |
RSI_BLE_ATT_PROPERTY_NOTIFY | RSI_BLE_ATT_PROPERTY_INDICATE, // Set read, write, write without response
new_serv_resp.start_handle + RSI_BLE_CHARACTERISTIC_TX_MEASUREMENT_HANDLE_LOCATION, custom_characteristic_TX);
// Adding characteristic value attribute to the service
rsi_ble_measurement_hndl = new_serv_resp.start_handle + RSI_BLE_CHARACTERISTIC_TX_MEASUREMENT_HANDLE_LOCATION;
// Adding characteristic value attribute to the service
rsi_ble_gatt_server_client_config_hndl =
new_serv_resp.start_handle + RSI_BLE_CHARACTERISTIC_TX_GATT_SERVER_CLIENT_HANDLE_LOCATION;
SilabsBleWrapper::rsi_ble_add_char_val_att(new_serv_resp.serv_handler, rsi_ble_measurement_hndl, custom_characteristic_TX,
RSI_BLE_ATT_PROPERTY_WRITE_NO_RESPONSE | RSI_BLE_ATT_PROPERTY_WRITE |
RSI_BLE_ATT_PROPERTY_READ | RSI_BLE_ATT_PROPERTY_NOTIFY |
RSI_BLE_ATT_PROPERTY_INDICATE, // Set read, write, write without response
data, sizeof(data), ATT_REC_MAINTAIN_IN_HOST);
#ifdef CHIP_ENABLE_ADDITIONAL_DATA_ADVERTISING
constexpr uuid_t custom_characteristic_C3 = { .size = RSI_BLE_CUSTOM_CHARACTERISTIC_C3_SIZE,
.reserved = { RSI_BLE_CUSTOM_CHARACTERISTIC_C3_RESERVED },
.val = { .val128 = {
.data1 = RSI_BLE_CUSTOM_CHARACTERISTIC_C3_VALUE_128_DATA_1,
.data2 = RSI_BLE_CUSTOM_CHARACTERISTIC_C3_VALUE_128_DATA_2,
.data3 = RSI_BLE_CUSTOM_CHARACTERISTIC_C3_VALUE_128_DATA_3,
.data4 = { RSI_BLE_CUSTOM_CHARACTERISTIC_C3_VALUE_128_DATA_4 } } } };
// Adding custom characteristic declaration to the custom service
SilabsBleWrapper::rsi_ble_add_char_serv_att(
new_serv_resp.serv_handler, new_serv_resp.start_handle + RSI_BLE_CHARACTERISTIC_C3_ATTRIBUTE_HANDLE_LOCATION,
RSI_BLE_ATT_PROPERTY_READ, // Set read
new_serv_resp.start_handle + RSI_BLE_CHARACTERISTIC_C3_MEASUREMENT_HANDLE_LOCATION, custom_characteristic_C3);
// Adding characteristic value attribute to the service
SilabsBleWrapper::rsi_ble_add_char_val_att(new_serv_resp.serv_handler,
new_serv_resp.start_handle + RSI_BLE_CHARACTERISTIC_C3_MEASUREMENT_HANDLE_LOCATION,
custom_characteristic_C3,
RSI_BLE_ATT_PROPERTY_READ, // Set read
data, sizeof(data), ATT_REC_IN_HOST);
#endif // CHIP_ENABLE_ADDITIONAL_DATA_ADVERTISING
}
} // namespace
BLEManagerImpl BLEManagerImpl::sInstance;
void BLEManagerImpl::ProcessEvent(SilabsBleWrapper::BleEvent_t inEvent)
{
switch (inEvent.eventType)
{
case SilabsBleWrapper::BleEventType::RSI_BLE_CONN_EVENT: {
BLEMgrImpl().HandleConnectEvent(inEvent.eventData);
// Requests the connection parameters change with the remote device
rsi_ble_conn_params_update(inEvent.eventData.resp_enh_conn.dev_addr, BLE_MIN_CONNECTION_INTERVAL_MS,
BLE_MAX_CONNECTION_INTERVAL_MS, BLE_SLAVE_LATENCY_MS, BLE_TIMEOUT_MS);
rsi_ble_set_data_len(inEvent.eventData.resp_enh_conn.dev_addr, RSI_BLE_TX_OCTETS, RSI_BLE_TX_TIME);
// Used to send the Indication confirmation
memcpy(dev_address, inEvent.eventData.resp_enh_conn.dev_addr, RSI_DEV_ADDR_LEN);
}
break;
case SilabsBleWrapper::BleEventType::RSI_BLE_DISCONN_EVENT: {
// event invokes when disconnection was completed
BLEMgrImpl().HandleConnectionCloseEvent(inEvent.eventData);
}
break;
case SilabsBleWrapper::BleEventType::RSI_BLE_MTU_EVENT: {
// event invokes when write/notification events received
BLEMgrImpl().UpdateMtu(inEvent.eventData);
}
break;
case SilabsBleWrapper::BleEventType::RSI_BLE_EVENT_GATT_RD: {
#if CHIP_ENABLE_ADDITIONAL_DATA_ADVERTISING
if (inEvent.eventData.rsi_ble_read_req->type == 0)
{
BLEMgrImpl().HandleC3ReadRequest(inEvent.eventData);
}
#endif // CHIP_ENABLE_ADDITIONAL_DATA_ADVERTISING
}
break;
case SilabsBleWrapper::BleEventType::RSI_BLE_GATT_WRITE_EVENT: {
// event invokes when write/notification events received
BLEMgrImpl().HandleWriteEvent(inEvent.eventData);
}
break;
case SilabsBleWrapper::BleEventType::RSI_BLE_GATT_INDICATION_CONFIRMATION: {
BLEMgrImpl().HandleTxConfirmationEvent(1);
}
break;
default:
break;
}
}
void BLEManagerImpl::BlePostEvent(SilabsBleWrapper::BleEvent_t * event)
{
sl_status_t status = osMessageQueuePut(sInstance.sBleEventQueue, event, 0, 0);
if (status != osOK)
{
ChipLogError(DeviceLayer, "BlePostEvent: failed to post event: 0x%lx", status);
// TODO: Handle error, requeue event depending on queue size or notify relevant task, Chipdie, etc.
}
}
void BLEManagerImpl::sl_ble_event_handling_task(void * args)
{
sl_status_t status;
SilabsBleWrapper::BleEvent_t bleEvent;
// This function initialize BLE and start BLE advertisement.
sInstance.sl_ble_init();
// Application event map
while (1)
{
status = osMessageQueueGet(sInstance.sBleEventQueue, &bleEvent, NULL, osWaitForever);
if (status == osOK)
{
sInstance.ProcessEvent(bleEvent);
}
else
{
ChipLogError(DeviceLayer, "sl_ble_event_handling_task: get event failed: 0x%lx", static_cast<uint32_t>(status));
}
}
}
void BLEManagerImpl::sl_ble_init()
{
uint8_t randomAddrBLE[RSI_BLE_ADDR_LENGTH] = { 0 };
uint64_t randomAddr = chip::Crypto::GetRandU64();
memcpy(randomAddrBLE, &randomAddr, RSI_BLE_ADDR_LENGTH);
// Set the two least significant bits as the first 2 bits of the address has to be '11' to ensure the address is a random
// non-resolvable private address
randomAddrBLE[(RSI_BLE_ADDR_LENGTH - 1)] |= 0xC0;
// registering the GAP callback functions
rsi_ble_gap_register_callbacks(NULL, NULL, SilabsBleWrapper::rsi_ble_on_disconnect_event, NULL, NULL, NULL,
SilabsBleWrapper::rsi_ble_on_enhance_conn_status_event, NULL, NULL, NULL);
// registering the GATT call back functions
rsi_ble_gatt_register_callbacks(NULL, NULL, NULL, NULL, NULL, NULL, NULL, SilabsBleWrapper::rsi_ble_on_gatt_write_event, NULL,
NULL, SilabsBleWrapper::rsi_ble_on_read_req_event, SilabsBleWrapper::rsi_ble_on_mtu_event, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
SilabsBleWrapper::rsi_ble_on_event_indication_confirmation, NULL);
// Exchange of GATT info with BLE stack
rsi_ble_add_matter_service();
rsi_ble_set_random_address_with_value(randomAddrBLE);
sInstance.sBleEventQueue = osMessageQueueNew(WFX_QUEUE_SIZE, sizeof(SilabsBleWrapper::BleEvent_t), NULL);
VerifyOrDie(sInstance.sBleEventQueue != nullptr);
chip::DeviceLayer::Internal::BLEMgrImpl().HandleBootEvent();
}
CHIP_ERROR BLEManagerImpl::_Init()
{
CHIP_ERROR err;
sBleThread = osThreadNew(sInstance.sl_ble_event_handling_task, NULL, &kBleTaskAttr);
VerifyOrReturnError(sBleThread != nullptr, CHIP_ERROR_INCORRECT_STATE);
// Initialize the CHIP BleLayer.
err = BleLayer::Init(this, this, &DeviceLayer::SystemLayer());
SuccessOrExit(err);
memset(mBleConnections, 0, sizeof(mBleConnections));
memset(mIndConfId, kUnusedIndex, sizeof(mIndConfId));
mServiceMode = ConnectivityManager::kCHIPoBLEServiceMode_Enabled;
// SW timer for BLE timeouts and interval change.
sbleAdvTimeoutTimer = osTimerNew(BleAdvTimeoutHandler, osTimerOnce, NULL, NULL);
mFlags.ClearAll().Set(Flags::kAdvertisingEnabled, CHIP_DEVICE_CONFIG_CHIPOBLE_ENABLE_ADVERTISING_AUTOSTART);
mFlags.Set(Flags::kFastAdvertisingEnabled, true);
PlatformMgr().ScheduleWork(DriveBLEState, 0);
exit:
return err;
}
void BLEManagerImpl::OnSendIndicationTimeout(System::Layer * aLayer, void * appState)
{
// TODO: change the connection handle with the ble device ID
uint8_t connHandle = 1;
ChipLogProgress(DeviceLayer, "BLEManagerImpl::HandleSoftTimerEvent CHIPOBLE_PROTOCOL_ABORT");
ChipDeviceEvent event;
event.Type = DeviceEventType::kCHIPoBLEConnectionError;
event.CHIPoBLEConnectionError.ConId = connHandle;
event.CHIPoBLEConnectionError.Reason = BLE_ERROR_CHIPOBLE_PROTOCOL_ABORT;
PlatformMgr().PostEventOrDie(&event);
}
uint16_t BLEManagerImpl::_NumConnections(void)
{
uint16_t numCons = 0;
for (uint16_t i = 0; i < kMaxConnections; i++)
{
if (mBleConnections[i].allocated)
{
numCons++;
}
}
return numCons;
}
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::kAdvertisingEnabled) != val)
{
mFlags.Set(Flags::kAdvertisingEnabled, val);
PlatformMgr().ScheduleWork(DriveBLEState, 0);
}
exit:
return err;
}
CHIP_ERROR BLEManagerImpl::_SetAdvertisingMode(BLEAdvertisingMode mode)
{
switch (mode)
{
case BLEAdvertisingMode::kFastAdvertising:
mFlags.Set(Flags::kFastAdvertisingEnabled, true);
break;
case BLEAdvertisingMode::kSlowAdvertising:
mFlags.Set(Flags::kFastAdvertisingEnabled, false);
break;
default:
return CHIP_ERROR_INVALID_ARGUMENT;
}
mFlags.Set(Flags::kRestartAdvertising);
PlatformMgr().ScheduleWork(DriveBLEState, 0);
return CHIP_NO_ERROR;
}
CHIP_ERROR BLEManagerImpl::_GetDeviceName(char * buf, size_t bufSize)
{
if (strlen(mDeviceName) >= bufSize)
{
return CHIP_ERROR_BUFFER_TOO_SMALL;
}
strcpy(buf, mDeviceName);
return CHIP_NO_ERROR;
}
CHIP_ERROR BLEManagerImpl::_SetDeviceName(const char * deviceName)
{
ChipLogProgress(DeviceLayer, "_SetDeviceName Started");
if (mServiceMode == ConnectivityManager::kCHIPoBLEServiceMode_NotSupported)
{
ChipLogProgress(DeviceLayer, "_SetDeviceName CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE");
return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
}
if (deviceName != NULL && deviceName[0] != 0)
{
if (strlen(deviceName) >= kMaxDeviceNameLength)
{
ChipLogProgress(DeviceLayer, "_SetDeviceName CHIP_ERROR_INVALID_ARGUMENT");
return CHIP_ERROR_INVALID_ARGUMENT;
}
strcpy(mDeviceName, deviceName);
mFlags.Set(Flags::kDeviceNameSet);
mFlags.Set(Flags::kRestartAdvertising);
ChipLogProgress(DeviceLayer, "Setting device name to : \"%s\"", mDeviceName);
}
else
{
mDeviceName[0] = 0;
}
PlatformMgr().ScheduleWork(DriveBLEState, 0);
ChipLogProgress(DeviceLayer, "_SetDeviceName Ended");
return CHIP_NO_ERROR;
}
void BLEManagerImpl::_OnPlatformEvent(const ChipDeviceEvent * event)
{
switch (event->Type)
{
case DeviceEventType::kCHIPoBLESubscribe: {
ChipDeviceEvent connEstEvent;
ChipLogProgress(DeviceLayer, "_OnPlatformEvent kCHIPoBLESubscribe");
HandleSubscribeReceived(event->CHIPoBLESubscribe.ConId, &CHIP_BLE_SVC_ID, &Ble::CHIP_BLE_CHAR_2_UUID);
connEstEvent.Type = DeviceEventType::kCHIPoBLEConnectionEstablished;
PlatformMgr().PostEventOrDie(&connEstEvent);
}
break;
case DeviceEventType::kCHIPoBLEUnsubscribe: {
ChipLogProgress(DeviceLayer, "_OnPlatformEvent kCHIPoBLEUnsubscribe");
HandleUnsubscribeReceived(event->CHIPoBLEUnsubscribe.ConId, &CHIP_BLE_SVC_ID, &Ble::CHIP_BLE_CHAR_2_UUID);
}
break;
case DeviceEventType::kCHIPoBLEWriteReceived: {
ChipLogProgress(DeviceLayer, "_OnPlatformEvent kCHIPoBLEWriteReceived");
HandleWriteReceived(event->CHIPoBLEWriteReceived.ConId, &CHIP_BLE_SVC_ID, &Ble::CHIP_BLE_CHAR_1_UUID,
PacketBufferHandle::Adopt(event->CHIPoBLEWriteReceived.Data));
}
break;
case DeviceEventType::kCHIPoBLEConnectionError: {
ChipLogProgress(DeviceLayer, "_OnPlatformEvent kCHIPoBLEConnectionError");
HandleConnectionError(event->CHIPoBLEConnectionError.ConId, event->CHIPoBLEConnectionError.Reason);
}
break;
case DeviceEventType::kCHIPoBLEIndicateConfirm: {
ChipLogProgress(DeviceLayer, "_OnPlatformEvent kCHIPoBLEIndicateConfirm");
HandleIndicationConfirmation(event->CHIPoBLEIndicateConfirm.ConId, &CHIP_BLE_SVC_ID, &Ble::CHIP_BLE_CHAR_2_UUID);
}
break;
default:
ChipLogProgress(DeviceLayer, "_OnPlatformEvent default: event->Type = %d", event->Type);
break;
}
}
CHIP_ERROR BLEManagerImpl::SubscribeCharacteristic(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId,
const ChipBleUUID * charId)
{
ChipLogProgress(DeviceLayer, "BLEManagerImpl::SubscribeCharacteristic() not supported");
return CHIP_ERROR_NOT_IMPLEMENTED;
}
CHIP_ERROR BLEManagerImpl::UnsubscribeCharacteristic(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId,
const ChipBleUUID * charId)
{
ChipLogProgress(DeviceLayer, "BLEManagerImpl::UnsubscribeCharacteristic() not supported");
return CHIP_ERROR_NOT_IMPLEMENTED;
}
CHIP_ERROR BLEManagerImpl::CloseConnection(BLE_CONNECTION_OBJECT conId)
{
CHIP_ERROR err = CHIP_NO_ERROR;
ChipLogProgress(DeviceLayer, "Closing BLE GATT connection (con %u)", conId);
if (err != CHIP_NO_ERROR)
{
ChipLogError(DeviceLayer, "sl_bt_connection_close() failed: %s", ErrorStr(err));
}
return err;
}
uint16_t BLEManagerImpl::GetMTU(BLE_CONNECTION_OBJECT conId) const
{
CHIPoBLEConState * conState = const_cast<BLEManagerImpl *>(this)->GetConnectionState(conId);
return (conState != NULL) ? conState->mtu : 0;
}
CHIP_ERROR BLEManagerImpl::SendIndication(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId, const ChipBleUUID * charId,
PacketBufferHandle data)
{
int32_t status = 0;
status = rsi_ble_indicate_value(dev_address, rsi_ble_measurement_hndl, data->DataLength(), data->Start());
if (status != RSI_SUCCESS)
{
ChipLogProgress(DeviceLayer, "indication failed with error code %lx ", status);
return BLE_ERROR_GATT_INDICATE_FAILED;
}
// start timer for the indication Confirmation Event
DeviceLayer::SystemLayer().StartTimer(chip::System::Clock::Milliseconds32(BLE_SEND_INDICATION_TIMER_PERIOD_MS),
OnSendIndicationTimeout, this);
return CHIP_NO_ERROR;
}
CHIP_ERROR BLEManagerImpl::SendWriteRequest(BLE_CONNECTION_OBJECT conId, const ChipBleUUID * svcId, const ChipBleUUID * charId,
PacketBufferHandle pBuf)
{
ChipLogProgress(DeviceLayer, "BLEManagerImpl::SendWriteRequest() not supported");
return CHIP_ERROR_NOT_IMPLEMENTED;
}
void BLEManagerImpl::NotifyChipConnectionClosed(BLE_CONNECTION_OBJECT conId)
{
// Nothing to do
}
// TODO: Need to add RSI BLE STATUS codes
CHIP_ERROR BLEManagerImpl::MapBLEError(int bleErr)
{
switch (bleErr)
{
case SL_STATUS_OK:
return CHIP_NO_ERROR;
case SL_STATUS_BT_ATT_INVALID_ATT_LENGTH:
return CHIP_ERROR_INVALID_STRING_LENGTH;
case SL_STATUS_INVALID_PARAMETER:
return CHIP_ERROR_INVALID_ARGUMENT;
case SL_STATUS_INVALID_STATE:
return CHIP_ERROR_INCORRECT_STATE;
case SL_STATUS_NOT_SUPPORTED:
return CHIP_ERROR_UNSUPPORTED_CHIP_FEATURE;
default:
return CHIP_ERROR(ChipError::Range::kPlatform, bleErr + CHIP_DEVICE_CONFIG_SILABS_BLE_ERROR_MIN);
}
}
void BLEManagerImpl::DriveBLEState(void)
{
CHIP_ERROR err = CHIP_NO_ERROR;
// Check if BLE stack is initialized ( TODO )
VerifyOrExit(mFlags.Has(Flags::kSiLabsBLEStackInitialize), /* */);
// Start advertising if needed...
if (mServiceMode == ConnectivityManager::kCHIPoBLEServiceMode_Enabled && mFlags.Has(Flags::kAdvertisingEnabled) &&
NumConnections() < kMaxConnections)
{
// Start/re-start advertising if not already started, or if there is a pending change
// to the advertising configuration.
if (!mFlags.Has(Flags::kAdvertising) || mFlags.Has(Flags::kRestartAdvertising))
{
ChipLogProgress(DeviceLayer, "Start Advertising");
err = StartAdvertising();
SuccessOrExit(err);
}
}
// Otherwise, stop advertising if it is enabled.
else if (mFlags.Has(Flags::kAdvertising))
{
ChipLogProgress(DeviceLayer, "Stop Advertising");
err = StopAdvertising();
SuccessOrExit(err);
}
exit:
if (err != CHIP_NO_ERROR)
{
ChipLogError(DeviceLayer, "Disabling CHIPoBLE service due to error: %s", ErrorStr(err));
mServiceMode = ConnectivityManager::kCHIPoBLEServiceMode_Disabled;
}
}
CHIP_ERROR BLEManagerImpl::ConfigureAdvertisingData(void)
{
ChipBLEDeviceIdentificationInfo mDeviceIdInfo;
CHIP_ERROR err;
int32_t result;
uint8_t responseData[MAX_RESPONSE_DATA_LEN];
uint8_t advData[MAX_ADV_DATA_LEN];
uint32_t index = 0;
uint32_t mDeviceNameLength = 0;
uint8_t mDeviceIdInfoLength = 0;
err = ConfigurationMgr().GetBLEDeviceIdentificationInfo(mDeviceIdInfo);
ChipLogProgress(DeviceLayer, "ConfigureAdvertisingData start");
VerifyOrExit((kMaxDeviceNameLength + 1) < UINT8_MAX, err = CHIP_ERROR_INVALID_ARGUMENT);
memset(responseData, 0, MAX_RESPONSE_DATA_LEN);
memset(advData, 0, MAX_ADV_DATA_LEN);
SuccessOrExit(err);
if (!mFlags.Has(Flags::kDeviceNameSet))
{
uint16_t discriminator;
SuccessOrExit(err = GetCommissionableDataProvider()->GetSetupDiscriminator(discriminator));
snprintf(mDeviceName, sizeof(mDeviceName), "%s%04u", CHIP_DEVICE_CONFIG_BLE_DEVICE_NAME_PREFIX, discriminator);
mDeviceName[kMaxDeviceNameLength] = 0;
mDeviceNameLength = strlen(mDeviceName);
VerifyOrExit(mDeviceNameLength < kMaxDeviceNameLength, err = CHIP_ERROR_INVALID_ARGUMENT);
}
mDeviceNameLength = strlen(mDeviceName); // Device Name length + length field
VerifyOrExit(mDeviceNameLength < kMaxDeviceNameLength, err = CHIP_ERROR_INVALID_ARGUMENT);
static_assert((kFlagTlvSize + kUUIDTlvSize + kDeviceNameTlvSize) <= MAX_RESPONSE_DATA_LEN, "Scan Response buffer is too small");
mDeviceIdInfoLength = sizeof(mDeviceIdInfo); // Servicedatalen + length+ UUID (Short)
static_assert(sizeof(mDeviceIdInfo) + CHIP_ADV_SHORT_UUID_LEN + 1 <= UINT8_MAX, "Our length won't fit in a uint8_t");
static_assert(2 + CHIP_ADV_SHORT_UUID_LEN + sizeof(mDeviceIdInfo) + 1 <= MAX_ADV_DATA_LEN, "Our buffer is not big enough");
index = 0;
advData[index++] = 0x02; // length
advData[index++] = CHIP_ADV_DATA_TYPE_FLAGS; // AD type : flags
advData[index++] = CHIP_ADV_DATA_FLAGS; // AD value
advData[index++] = static_cast<uint8_t>(mDeviceIdInfoLength + CHIP_ADV_SHORT_UUID_LEN + 1); // AD length
advData[index++] = CHIP_ADV_DATA_TYPE_SERVICE_DATA; // AD type : Service Data
advData[index++] = ShortUUID_CHIPoBLEService[0]; // AD value
advData[index++] = ShortUUID_CHIPoBLEService[1];
memcpy(&advData[index], (void *) &mDeviceIdInfo, mDeviceIdInfoLength); // AD value
index += mDeviceIdInfoLength;
#if CHIP_ENABLE_ADDITIONAL_DATA_ADVERTISING
ReturnErrorOnFailure(EncodeAdditionalDataTlv());
#endif
result = rsi_ble_set_advertise_data(advData, index);
if (result != SL_STATUS_OK)
{
// err = MapBLEError(result);
ChipLogError(DeviceLayer, "rsi_ble_set_advertise_data() failed: %ld", result);
ExitNow();
}
else
{
ChipLogError(DeviceLayer, "rsi_ble_set_advertise_data() success: %ld", result);
}
index = 0;
responseData[index++] = 0x02; // length
responseData[index++] = CHIP_ADV_DATA_TYPE_FLAGS; // AD type : flags
responseData[index++] = CHIP_ADV_DATA_FLAGS;
responseData[index++] = CHIP_ADV_SHORT_UUID_LEN + 1; // AD length
responseData[index++] = CHIP_ADV_DATA_TYPE_UUID; // AD type : uuid
responseData[index++] = ShortUUID_CHIPoBLEService[0]; // AD value
responseData[index++] = ShortUUID_CHIPoBLEService[1];
responseData[index++] = static_cast<uint8_t>(mDeviceNameLength + 1); // length
responseData[index++] = CHIP_ADV_DATA_TYPE_NAME; // AD type : name
memcpy(&responseData[index], mDeviceName, mDeviceNameLength); // AD value
index += mDeviceNameLength;
rsi_ble_set_scan_response_data(responseData, index);
ChipLogProgress(DeviceLayer, "ConfigureAdvertisingData End");
exit:
return CHIP_NO_ERROR;
}
CHIP_ERROR BLEManagerImpl::StartAdvertising(void)
{
CHIP_ERROR err = CHIP_NO_ERROR;
int32_t status = 0;
bool postAdvChangeEvent = false;
ChipLogProgress(DeviceLayer, "StartAdvertising start");
// If already advertising, stop it, before changing values
if (mFlags.Has(Flags::kAdvertising))
{
status = rsi_ble_stop_advertising();
if (status != RSI_SUCCESS)
{
ChipLogProgress(DeviceLayer, "advertising failed to stop, with status = 0x%lx ", status);
}
}
else
{
ChipLogDetail(DeviceLayer, "Start BLE advertisement");
postAdvChangeEvent = true;
}
if (!(mFlags.Has(Flags::kAdvertising)))
{
err = ConfigureAdvertisingData();
SuccessOrExit(err);
}
mFlags.Clear(Flags::kRestartAdvertising);
status = sInstance.SendBLEAdvertisementCommand();
if (status == RSI_SUCCESS)
{
ChipLogProgress(DeviceLayer, "rsi_ble_start_advertising Success");
if (mFlags.Has(Flags::kFastAdvertisingEnabled))
{
StartBleAdvTimeoutTimer(CHIP_DEVICE_CONFIG_BLE_ADVERTISING_INTERVAL_CHANGE_TIME);
}
mFlags.Set(Flags::kAdvertising);
if (postAdvChangeEvent)
{
// Post CHIPoBLEAdvertisingChange event.
ChipDeviceEvent advChange;
advChange.Type = DeviceEventType::kCHIPoBLEAdvertisingChange;
advChange.CHIPoBLEAdvertisingChange.Result = kActivity_Started;
ReturnErrorOnFailure(PlatformMgr().PostEvent(&advChange));
}
}
else
{
ChipLogProgress(DeviceLayer, "rsi_ble_start_advertising Failed with status: %lx", status);
}
exit:
// TODO: Add MapBLEError to return the correct error code
ChipLogError(DeviceLayer, "StartAdvertising() End error: %s", ErrorStr(err));
return err;
}
int32_t BLEManagerImpl::SendBLEAdvertisementCommand(void)
{
rsi_ble_req_adv_t ble_adv = { 0 };
ble_adv.status = RSI_BLE_START_ADV;
ble_adv.adv_type = RSI_BLE_ADV_TYPE;
ble_adv.filter_type = RSI_BLE_ADV_FILTER_TYPE;
ble_adv.direct_addr_type = RSI_BLE_ADV_DIR_ADDR_TYPE;
rsi_ascii_dev_address_to_6bytes_rev(ble_adv.direct_addr, (int8_t *) RSI_BLE_ADV_DIR_ADDR);
if (mFlags.Has(Flags::kFastAdvertisingEnabled))
{
ble_adv.adv_int_min = CHIP_DEVICE_CONFIG_BLE_FAST_ADVERTISING_INTERVAL_MIN;
ble_adv.adv_int_max = CHIP_DEVICE_CONFIG_BLE_FAST_ADVERTISING_INTERVAL_MAX;
}
else
{
ble_adv.adv_int_min = CHIP_DEVICE_CONFIG_BLE_SLOW_ADVERTISING_INTERVAL_MIN;
ble_adv.adv_int_max = CHIP_DEVICE_CONFIG_BLE_SLOW_ADVERTISING_INTERVAL_MAX;
}
ble_adv.own_addr_type = LE_RANDOM_ADDRESS;
ble_adv.adv_channel_map = RSI_BLE_ADV_CHANNEL_MAP;
return rsi_ble_start_advertising_with_values(&ble_adv);
}
CHIP_ERROR BLEManagerImpl::StopAdvertising(void)
{
CHIP_ERROR err = CHIP_NO_ERROR;
int32_t status = 0;
if (mFlags.Has(Flags::kAdvertising))
{
// Since DriveBLEState is not called the device is still advertising
status = rsi_ble_stop_advertising();
if (status != RSI_SUCCESS)
{
mFlags.Clear(Flags::kAdvertising).Clear(Flags::kRestartAdvertising);
mFlags.Set(Flags::kFastAdvertisingEnabled, true);
advertising_set_handle = 0xff;
CancelBleAdvTimeoutTimer();
// Post CHIPoBLEAdvertisingChange event.
ChipDeviceEvent advChange;
advChange.Type = DeviceEventType::kCHIPoBLEAdvertisingChange;
advChange.CHIPoBLEAdvertisingChange.Result = kActivity_Stopped;
err = PlatformMgr().PostEvent(&advChange);
}
}
// TODO: Add MapBLEError to return the correct error code
return err;
}
void BLEManagerImpl::UpdateMtu(const SilabsBleWrapper::sl_wfx_msg_t & evt)
{
CHIPoBLEConState * bleConnState = GetConnectionState(evt.connectionHandle);
if (bleConnState != NULL)
{
// bleConnState->MTU is a 10-bit field inside a uint16_t. We're
// assigning to it from a uint16_t, and compilers warn about
// possibly not fitting. There's no way to suppress that warning
// via explicit cast; we have to disable the warning around the
// assignment.
//
// TODO: https://github.com/project-chip/connectedhomeip/issues/2569
// tracks making this safe with a check or explaining why no check
// is needed.
ChipLogProgress(DeviceLayer, "DriveBLEState UpdateMtu %d", evt.rsi_ble_mtu.mtu_size);
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
bleConnState->mtu = evt.rsi_ble_mtu.mtu_size;
#pragma GCC diagnostic pop
;
}
}
void BLEManagerImpl::HandleBootEvent(void)
{
mFlags.Set(Flags::kSiLabsBLEStackInitialize);
PlatformMgr().ScheduleWork(DriveBLEState, 0);
}
void BLEManagerImpl::HandleConnectEvent(const SilabsBleWrapper::sl_wfx_msg_t & evt)
{
AddConnection(evt.connectionHandle, evt.bondingHandle);
PlatformMgr().ScheduleWork(DriveBLEState, 0);
}
void BLEManagerImpl::HandleConnectionCloseEvent(const SilabsBleWrapper::sl_wfx_msg_t & evt)
{
uint8_t connHandle = 1;
if (RemoveConnection(connHandle))
{
ChipDeviceEvent event;
event.Type = DeviceEventType::kCHIPoBLEConnectionError;
event.CHIPoBLEConnectionError.ConId = connHandle;
switch (evt.reason)
{
case RSI_BT_CTRL_REMOTE_USER_TERMINATED:
case RSI_BT_CTRL_REMOTE_DEVICE_TERMINATED_CONNECTION_DUE_TO_LOW_RESOURCES:
case RSI_BT_CTRL_REMOTE_POWERING_OFF:
event.CHIPoBLEConnectionError.Reason = BLE_ERROR_REMOTE_DEVICE_DISCONNECTED;
break;
default:
event.CHIPoBLEConnectionError.Reason = BLE_ERROR_CHIPOBLE_PROTOCOL_ABORT;
}
ChipLogProgress(DeviceLayer, "BLE GATT connection closed (con %u, reason %x)", connHandle, evt.reason);
PlatformMgr().PostEventOrDie(&event);
// Arrange to re-enable connectable advertising in case it was disabled due to the
// maximum connection limit being reached.
mFlags.Set(Flags::kRestartAdvertising);
mFlags.Set(Flags::kFastAdvertisingEnabled);
PlatformMgr().ScheduleWork(DriveBLEState, 0);
}
}
void BLEManagerImpl::HandleWriteEvent(const SilabsBleWrapper::sl_wfx_msg_t & evt)
{
ChipLogProgress(DeviceLayer, "Char Write Req, packet type %d", evt.rsi_ble_write.pkt_type);
if (evt.rsi_ble_write.handle[0] == (uint8_t) rsi_ble_gatt_server_client_config_hndl) // TODO:: compare the handle exactly
{
HandleTXCharCCCDWrite(evt);
}
else
{
HandleRXCharWrite(evt);
}
}
void BLEManagerImpl::HandleTXCharCCCDWrite(const SilabsBleWrapper::sl_wfx_msg_t & evt)
{
CHIP_ERROR err = CHIP_NO_ERROR;
bool isIndicationEnabled = false;
ChipDeviceEvent event;
CHIPoBLEConState * bleConnState;
bleConnState = GetConnectionState(evt.connectionHandle);
VerifyOrExit(bleConnState != NULL, err = CHIP_ERROR_NO_MEMORY);
// Determine if the client is enabling or disabling notification/indication.
if (evt.rsi_ble_write.att_value[0] != 0)
{
isIndicationEnabled = true;
}
ChipLogProgress(DeviceLayer, "HandleTXcharCCCDWrite - Config Flags value : %d", evt.rsi_ble_write.att_value[0]);
ChipLogProgress(DeviceLayer, "CHIPoBLE %s received", isIndicationEnabled ? "subscribe" : "unsubscribe");
if (isIndicationEnabled)
{
// If indications are not already enabled for the connection...
if (!bleConnState->subscribed)
{
bleConnState->subscribed = 1;
// 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.
event.Type = DeviceEventType::kCHIPoBLESubscribe;
event.CHIPoBLESubscribe.ConId = 1; // TODO:: To be replaced by device mac address
err = PlatformMgr().PostEvent(&event);
}
}
else
{
bleConnState->subscribed = 0;
event.Type = DeviceEventType::kCHIPoBLEUnsubscribe;
event.CHIPoBLESubscribe.ConId = 1; // TODO:: To be replaced by device mac address
err = PlatformMgr().PostEvent(&event);
}
exit:
if (err != CHIP_NO_ERROR)
{
ChipLogError(DeviceLayer, "HandleTXCharCCCDWrite() failed: %s", ErrorStr(err));
}
}
void BLEManagerImpl::HandleRXCharWrite(const SilabsBleWrapper::sl_wfx_msg_t & evt)
{
uint8_t conId = 1;
CHIP_ERROR err = CHIP_NO_ERROR;
System::PacketBufferHandle buf;
uint16_t writeLen = evt.rsi_ble_write.length;
uint8_t * data = (uint8_t *) evt.rsi_ble_write.att_value;
// Copy the data to a packet buffer.
buf = System::PacketBufferHandle::NewWithData(data, writeLen, 0, 0);
VerifyOrExit(!buf.IsNull(), err = CHIP_ERROR_NO_MEMORY);
ChipLogDetail(DeviceLayer, "Write request/command received for CHIPoBLE RX characteristic ( len %d)", writeLen);
// Post an event to the CHIP queue to deliver the data into the CHIP stack.
{
ChipDeviceEvent event;
event.Type = DeviceEventType::kCHIPoBLEWriteReceived;
event.CHIPoBLEWriteReceived.ConId = conId;
event.CHIPoBLEWriteReceived.Data = std::move(buf).UnsafeRelease();
err = PlatformMgr().PostEvent(&event);
}
exit:
if (err != CHIP_NO_ERROR)
{
ChipLogError(DeviceLayer, "HandleRXCharWrite() failed: %s", ErrorStr(err));
}
}
void BLEManagerImpl::HandleTxConfirmationEvent(BLE_CONNECTION_OBJECT conId)
{
DeviceLayer::PlatformMgr().LockChipStack();
// stop the indication confirmation timer
DeviceLayer::SystemLayer().CancelTimer(OnSendIndicationTimeout, this);
DeviceLayer::PlatformMgr().UnlockChipStack();
ChipDeviceEvent event;
event.Type = DeviceEventType::kCHIPoBLEIndicateConfirm;
event.CHIPoBLEIndicateConfirm.ConId = conId;
PlatformMgr().PostEventOrDie(&event);
}
bool BLEManagerImpl::RemoveConnection(uint8_t connectionHandle)
{
CHIPoBLEConState * bleConnState = GetConnectionState(connectionHandle, true);
bool status = false;
if (bleConnState != NULL)
{
memset(bleConnState, 0, sizeof(CHIPoBLEConState));
status = true;
}
return status;
}
void BLEManagerImpl::AddConnection(uint8_t connectionHandle, uint8_t bondingHandle)
{
CHIPoBLEConState * bleConnState = GetConnectionState(connectionHandle, true);
if (bleConnState != NULL)
{
memset(bleConnState, 0, sizeof(CHIPoBLEConState));
bleConnState->allocated = 1;
bleConnState->connectionHandle = connectionHandle;
bleConnState->bondingHandle = bondingHandle;
}
}