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#include <Components/Ble/BleController.h>
#include <SystemTask/SystemTask.h>
#include "DfuService.h"
using namespace Pinetime::Controllers;
constexpr ble_uuid128_t DfuService::serviceUuid;
constexpr ble_uuid128_t DfuService::controlPointCharacteristicUuid;
constexpr ble_uuid128_t DfuService::revisionCharacteristicUuid;
constexpr ble_uuid128_t DfuService::packetCharacteristicUuid;
int DfuServiceCallback(uint16_t conn_handle, uint16_t attr_handle,
struct ble_gatt_access_ctxt *ctxt, void *arg) {
auto dfuService = static_cast<DfuService*>(arg);
return dfuService->OnServiceData(conn_handle, attr_handle, ctxt);
}
DfuService::DfuService(Pinetime::System::SystemTask& systemTask, Pinetime::Controllers::Ble& bleController) :
systemTask{systemTask},
bleController{bleController},
characteristicDefinition{
{
.uuid = (ble_uuid_t *) &packetCharacteristicUuid,
.access_cb = DfuServiceCallback,
.arg = this,
.flags = BLE_GATT_CHR_F_WRITE_NO_RSP,
.val_handle = nullptr,
},
{
.uuid = (ble_uuid_t *) &controlPointCharacteristicUuid,
.access_cb = DfuServiceCallback,
.arg = this,
.flags = BLE_GATT_CHR_F_WRITE | BLE_GATT_CHR_F_NOTIFY,
.val_handle = nullptr,
},
{
.uuid = (ble_uuid_t *) &revisionCharacteristicUuid,
.access_cb = DfuServiceCallback,
.arg = this,
.flags = BLE_GATT_CHR_F_READ,
.val_handle = &revision,
},
{
0
}
},
serviceDefinition {
{
/* Device Information Service */
.type = BLE_GATT_SVC_TYPE_PRIMARY,
.uuid = (ble_uuid_t *) &serviceUuid,
.characteristics = characteristicDefinition
},
{
0
},
}
{
}
void DfuService::Init() {
ble_gatts_count_cfg(serviceDefinition);
ble_gatts_add_svcs(serviceDefinition);
}
int DfuService::OnServiceData(uint16_t connectionHandle, uint16_t attributeHandle, ble_gatt_access_ctxt *context) {
ble_gatts_find_chr((ble_uuid_t*)&serviceUuid, (ble_uuid_t*)&packetCharacteristicUuid, nullptr, &packetCharacteristicHandle);
ble_gatts_find_chr((ble_uuid_t*)&serviceUuid, (ble_uuid_t*)&controlPointCharacteristicUuid, nullptr, &controlPointCharacteristicHandle);
ble_gatts_find_chr((ble_uuid_t*)&serviceUuid, (ble_uuid_t*)&revisionCharacteristicUuid, nullptr, &revisionCharacteristicHandle);
if(attributeHandle == packetCharacteristicHandle) {
if(context->op == BLE_GATT_ACCESS_OP_WRITE_CHR)
return WritePacketHandler(connectionHandle, context->om);
else return 0;
} else if(attributeHandle == controlPointCharacteristicHandle) {
if(context->op == BLE_GATT_ACCESS_OP_WRITE_CHR)
return ControlPointHandler(connectionHandle, context->om);
else return 0;
} else if(attributeHandle == revisionCharacteristicHandle) {
if(context->op == BLE_GATT_ACCESS_OP_READ_CHR)
return SendDfuRevision(context->om);
else return 0;
} else {
NRF_LOG_INFO("[DFU] Unknown Characteristic : %d", attributeHandle);
return 0;
}
}
int DfuService::SendDfuRevision(os_mbuf *om) const {
int res = os_mbuf_append(om, &revision, sizeof(revision));
return (res == 0) ? 0 : BLE_ATT_ERR_INSUFFICIENT_RES;
}
int DfuService::WritePacketHandler(uint16_t connectionHandle, os_mbuf *om) {
switch(state) {
case States::Start: {
softdeviceSize = om->om_data[0] + (om->om_data[1] << 8) + (om->om_data[2] << 16) + (om->om_data[3] << 24);
bootloaderSize = om->om_data[4] + (om->om_data[5] << 8) + (om->om_data[6] << 16) + (om->om_data[7] << 24);
applicationSize = om->om_data[8] + (om->om_data[9] << 8) + (om->om_data[10] << 16) + (om->om_data[11] << 24);
NRF_LOG_INFO("[DFU] -> Start data received : SD size : %d, BT size : %d, app size : %d", softdeviceSize, bootloaderSize, applicationSize);
uint8_t data[] {16, 1, 1};
SendNotification(connectionHandle, data, 3);
state = States::Init;
}
return 0;
case States::Init: {
uint16_t deviceType = om->om_data[0] + (om->om_data[1] << 8);
uint16_t deviceRevision = om->om_data[2] + (om->om_data[3] << 8);
uint32_t applicationVersion = om->om_data[4] + (om->om_data[5] << 8) + (om->om_data[6] << 16) + (om->om_data[7] << 24);
uint16_t softdeviceArrayLength = om->om_data[8] + (om->om_data[9] << 8);
uint16_t sd[softdeviceArrayLength];
for(int i = 0; i < softdeviceArrayLength; i++) {
sd[i] = om->om_data[10 + (i*2)] + (om->om_data[(i*2)+1] << 8);
}
uint16_t crc = om->om_data[10 + (softdeviceArrayLength*2)] + (om->om_data[10 + (softdeviceArrayLength*2)] << 8);
NRF_LOG_INFO("[DFU] -> Init data received : deviceType = %d, deviceRevision = %d, applicationVersion = %d, nb SD = %d, First SD = %d, CRC = %d",
deviceType, deviceRevision, applicationVersion, softdeviceArrayLength, sd[0], crc);
return 0;
}
case States::Data: {
nbPacketReceived++;
bytesReceived += om->om_len;
bleController.FirmwareUpdateCurrentBytes(bytesReceived);
NRF_LOG_INFO("[DFU] -> Bytes received : %d in %d packets", bytesReceived, nbPacketReceived);
if((nbPacketReceived % nbPacketsToNotify) == 0) {
uint8_t data[5]{static_cast<uint8_t>(Opcodes::PacketReceiptNotification),
(uint8_t)(bytesReceived&0x000000FFu),(uint8_t)(bytesReceived>>8u), (uint8_t)(bytesReceived>>16u),(uint8_t)(bytesReceived>>24u) };
NRF_LOG_INFO("[DFU] -> Send packet notification: %d bytes received",bytesReceived);
SendNotification(connectionHandle, data, 5);
}
if(bytesReceived == applicationSize) {
uint8_t data[3]{static_cast<uint8_t>(Opcodes::Response),
static_cast<uint8_t>(Opcodes::ReceiveFirmwareImage),
static_cast<uint8_t>(ErrorCodes::NoError)};
NRF_LOG_INFO("[DFU] -> Send packet notification : all bytes received!");
SendNotification(connectionHandle, data, 3);
state = States::Validate;
}
}
return 0;
default:
// Invalid state
return 0;
}
return 0;
}
int DfuService::ControlPointHandler(uint16_t connectionHandle, os_mbuf *om) {
auto opcode = static_cast<Opcodes>(om->om_data[0]);
NRF_LOG_INFO("[DFU] -> ControlPointHandler");
switch(opcode) {
case Opcodes::StartDFU: {
if(state != States::Idle && state != States::Start) {
NRF_LOG_INFO("[DFU] -> Start DFU requested, but we are not in Idle state");
return 0;
}
if(state == States::Start) {
NRF_LOG_INFO("[DFU] -> Start DFU requested, but we are already in Start state");
return 0;
}
auto imageType = static_cast<ImageTypes>(om->om_data[1]);
if(imageType == ImageTypes::Application) {
NRF_LOG_INFO("[DFU] -> Start DFU, mode = Application");
state = States::Start;
bleController.StartFirmwareUpdate();
bleController.FirmwareUpdateTotalBytes(175280);
bleController.FirmwareUpdateCurrentBytes(0);
systemTask.PushMessage(Pinetime::System::SystemTask::Messages::BleFirmwareUpdateStarted);
return 0;
} else {
NRF_LOG_INFO("[DFU] -> Start DFU, mode %d not supported!", imageType);
return 0;
}
}
break;
case Opcodes::InitDFUParameters: {
if (state != States::Init) {
NRF_LOG_INFO("[DFU] -> Init DFU requested, but we are not in Init state");
return 0;
}
bool isInitComplete = (om->om_data[1] != 0);
NRF_LOG_INFO("[DFU] -> Init DFU parameters %s", isInitComplete ? " complete" : " not complete");
if (isInitComplete) {
uint8_t data[3]{static_cast<uint8_t>(Opcodes::Response),
static_cast<uint8_t>(Opcodes::InitDFUParameters),
(isInitComplete ? uint8_t{1} : uint8_t{0})};
NRF_LOG_INFO("SEND NOTIF : %d %d %d", data[0], data[1], data[2]);
SendNotification(connectionHandle, data, 3);
return 0;
}
}
return 0;
case Opcodes::PacketReceiptNotificationRequest:
nbPacketsToNotify = om->om_data[1];
NRF_LOG_INFO("[DFU] -> Receive Packet Notification Request, nb packet = %d", nbPacketsToNotify);
return 0;
case Opcodes::ReceiveFirmwareImage:
if(state != States::Init) {
NRF_LOG_INFO("[DFU] -> Receive firmware image requested, but we are not in Start Init");
return 0;
}
NRF_LOG_INFO("[DFU] -> Starting receive firmware");
state = States::Data;
return 0;
case Opcodes::ValidateFirmware: {
if(state != States::Validate) {
NRF_LOG_INFO("[DFU] -> Validate firmware image requested, but we are not in Data state");
return 0;
}
NRF_LOG_INFO("[DFU] -> Validate firmware");
state = States::Validated;
uint8_t data[3]{static_cast<uint8_t>(Opcodes::Response),
static_cast<uint8_t>(Opcodes::ValidateFirmware),
static_cast<uint8_t>(ErrorCodes::NoError)};
SendNotification(connectionHandle, data, 3);
return 0;
}
case Opcodes::ActivateImageAndReset:
if(state != States::Validated) {
NRF_LOG_INFO("[DFU] -> Activate image and reset requested, but we are not in Validated state");
return 0;
}
NRF_LOG_INFO("[DFU] -> Activate image and reset!");
bleController.StopFirmwareUpdate();
systemTask.PushMessage(Pinetime::System::SystemTask::Messages::BleFirmwareUpdateFinished);
return 0;
default: return 0;
}
}
void DfuService::SendNotification(uint16_t connectionHandle, const uint8_t *data, const size_t size) {
auto *om = ble_hs_mbuf_from_flat(data, size);
auto ret = ble_gattc_notify_custom(connectionHandle, controlPointCharacteristicHandle, om);
ASSERT(ret == 0);
}
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