ref: 0195ece317d15bcba7dfbd74b58bb8dbcd3bca0a
src/Components/Ble/DfuService.cpp
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#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() : 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); /* * o BLE_GATT_ACCESS_OP_READ_CHR * o BLE_GATT_ACCESS_OP_WRITE_CHR * o BLE_GATT_ACCESS_OP_READ_DSC * o BLE_GATT_ACCESS_OP_WRITE_DSC * */ char* op; switch(context->op) { case BLE_GATT_ACCESS_OP_READ_CHR: op = "Read Characteristic"; break; case BLE_GATT_ACCESS_OP_WRITE_CHR: op = "Write Characteristic"; break; case BLE_GATT_ACCESS_OP_READ_DSC: op = "Read Descriptor"; break; case BLE_GATT_ACCESS_OP_WRITE_DSC: op = "Write Descriptor"; break; } if(attributeHandle == packetCharacteristicHandle) { NRF_LOG_INFO("[DFU] %s Packet", op); if(context->op == BLE_GATT_ACCESS_OP_WRITE_CHR) { // NRF_LOG_INFO("[DFU] -> Write %dB", context->om->om_len); if(opcode == 1) { uint8_t data[3]{16, opcode, param}; NRF_LOG_INFO("[DFU] -> Send notification: {%d, %d, %d}", data[0], data[1], data[2]); auto *om = ble_hs_mbuf_from_flat(data, 3); ble_gattc_notify_custom(connectionHandle, controlPointCharacteristicHandle, om); } if(dataMode){ nbPacketReceived++; bytesReceived += context->om->om_len; NRF_LOG_INFO("[DFU] -> Bytes received : %d in %d packets", bytesReceived, nbPacketReceived); if((nbPacketReceived % nbPacketsToNotify) == 0) { uint8_t data[5]{17, (uint8_t)(bytesReceived>>24),(uint8_t)(bytesReceived>>16), (uint8_t)(bytesReceived>>8), (uint8_t)(bytesReceived&0x000000FF) }; NRF_LOG_INFO("[DFU] -> Send packet notification: %d bytes received",bytesReceived); auto *om = ble_hs_mbuf_from_flat(data, 5); ble_gattc_notify_custom(connectionHandle, controlPointCharacteristicHandle, om); } if(bytesReceived == 175280) { uint8_t data[3]{16, 3, 1}; NRF_LOG_INFO("[DFU] -> Send packet notification : all bytes received!"); auto *om = ble_hs_mbuf_from_flat(data, 3); ble_gattc_notify_custom(connectionHandle, controlPointCharacteristicHandle, om); } } } } else if (attributeHandle == controlPointCharacteristicHandle) { NRF_LOG_INFO("[DFU] %s ControlPoint", op); if(context->op == BLE_GATT_ACCESS_OP_WRITE_CHR) { // NRF_LOG_INFO("[DFU] -> Write %dB {%d, %d}", context->om->om_len, context->om->om_data[0], context->om->om_data[1]); switch(context->om->om_data[0]) { case 0x01: {// START DFU NRF_LOG_INFO("[DFU] -> Start DFU, mode = %d", context->om->om_data[1]); opcode = 0x01; param = 1; } break; case 0x02: NRF_LOG_INFO("[DFU] -> Receive init, state (0=RX, 1=Complete) = %d", context->om->om_data[1]); opcode = 0x02; param = context->om->om_data[1]; if(param == 1) { uint8_t data[3] {16, opcode, param}; NRF_LOG_INFO("[DFU] -> Send notification: {%d, %d, %d}", data[0], data[1], data[2]); auto *om = ble_hs_mbuf_from_flat(data, 3); ble_gattc_notify_custom(connectionHandle, controlPointCharacteristicHandle, om); } break; case 0x08: nbPacketsToNotify = context->om->om_data[1]; NRF_LOG_INFO("[DFU] -> Receive Packet Notification Request, nb packet = %d", nbPacketsToNotify); break; case 0x03: NRF_LOG_INFO("[DFU] -> Starting receive firmware"); dataMode = true; break; case 0x04: { NRF_LOG_INFO("[DFU] -> Validate firmware"); uint8_t data[3]{16, 4, 1}; NRF_LOG_INFO("[DFU] -> Send notification: {%d, %d, %d}", data[0], data[1], data[2]); auto *om = ble_hs_mbuf_from_flat(data, 3); ble_gattc_notify_custom(connectionHandle, controlPointCharacteristicHandle, om); } break; case 0x05: NRF_LOG_INFO("[DFU] -> Activate image and reset!"); break; } } } else if(attributeHandle == revisionCharacteristicHandle) { NRF_LOG_INFO("[DFU] %s Revision", op); if(context->op == BLE_GATT_ACCESS_OP_READ_CHR) { int res = os_mbuf_append(context->om, &revision, 2); return (res == 0) ? 0 : BLE_ATT_ERR_INSUFFICIENT_RES; } } else { NRF_LOG_INFO("[DFU] Unknown Characteristic : %d - %s", attributeHandle, op); } return 0; } |