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261
uts/utils/dfu.uts
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261
uts/utils/dfu.uts
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// DFU (Device Firmware Update) 工具类
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// 用于处理设备固件升级过程
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import supa, { supaReady } from '@/components/supadb/aksupainstance.uts'
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export type FirmwareInfo {
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version: string
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url: string
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size: number
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checksum: string
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description?: string
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}
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//https://ak3.oulog.com/storage/v1/object/public/akmon/OmFw2510221553.zip
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export type FirmwareConfig {
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default_value: string
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default_key?: string
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}
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export type DFUProgress {
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stage: 'downloading' | 'verifying' | 'uploading' | 'upgrading' | 'completed'
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progress: number // 0-100
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message: string
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}
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export class DFUTool {
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private progressCallback?: (progress: DFUProgress) => void
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constructor(progressCallback?: (progress: DFUProgress) => void) {
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this.progressCallback = progressCallback
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}
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/**
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* 检查是否有可用的固件升级
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* @param currentHardwareVersion 当前硬件版本
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* @param currentSoftwareVersion 当前软件版本
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* @returns 固件信息或null
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*/
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async checkFirmwareUpdate(currentHardwareVersion: string, currentSoftwareVersion: string): Promise<FirmwareInfo | null> {
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try {
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// 从Supabase查询最新固件版本
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const result = await supa
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.from('ak_global_config')
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.select('default_value,default_key', {})
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.eq('config_key', 'cfwatch_hardware_version')
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.single()
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.executeAs<FirmwareConfig>()
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console.log(result.data)
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const data = result.data as FirmwareConfig
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if (result.error !=null ) {
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console.log('查询固件版本失败:', result.error)
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return null
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}
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const firmwareConfig = data
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// 比较版本号，检查是否需要升级
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if (this.compareVersions(currentSoftwareVersion, firmwareConfig.default_value) < 0) {
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return {
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version: firmwareConfig.default_value,
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url: firmwareConfig.default_key,
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size: 0,
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checksum: '',
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description: ''
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}
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}
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return null
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} catch (error) {
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console.error('检查固件升级失败:', error)
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return null
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}
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}
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/**
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* 执行固件升级
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* @param firmwareInfo 固件信息
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* @param deviceId 设备ID
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* @returns 升级结果
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*/
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async performFirmwareUpdate(firmwareInfo: FirmwareInfo, deviceId: string): Promise<boolean> {
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try {
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this.updateProgress('downloading', 0, '开始下载固件...')
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// 下载固件文件
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const firmwareData = await this.downloadFirmware(firmwareInfo.url)
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this.updateProgress('verifying', 50, '验证固件完整性...')
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// 验证文件完整性
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if (!this.verifyFirmware(firmwareData, firmwareInfo.checksum)) {
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throw new Error('固件校验失败')
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}
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this.updateProgress('uploading', 70, '上传固件到设备...')
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// 执行DFU升级
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const success = await this.executeDFU(firmwareData, deviceId)
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if (success) {
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this.updateProgress('completed', 100, '固件升级完成')
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return true
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} else {
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throw new Error('DFU升级失败')
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}
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} catch (error) {
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console.error('固件升级失败:', error)
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this.updateProgress('completed', 0, `升级失败: ${error}`)
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return false
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}
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}
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/**
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* 下载固件文件
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*/
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private async downloadFirmware(url: string): Promise<ArrayBuffer> {
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return new Promise((resolve, reject) => {
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uni.downloadFile({
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url: url,
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success: (res) => {
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if (res.statusCode === 200) {
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// 读取下载的文件
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uni.getFileSystemManager().readFile({
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filePath: res.tempFilePath,
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success: (readRes) => {
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resolve(readRes.data as ArrayBuffer)
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},
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fail: reject
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})
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} else {
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reject(new Error(`下载失败: ${res.statusCode}`))
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}
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},
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fail: reject
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})
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})
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}
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/**
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* 验证固件完整性
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*/
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private verifyFirmware(data: ArrayBuffer, expectedChecksum: string): boolean {
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// 简单的校验和验证（可以根据需要实现更复杂的校验）
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const hash = this.calculateSimpleHash(data)
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return hash === expectedChecksum
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}
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/**
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* 执行DFU升级
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*/
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private async executeDFU(firmwareData: ArrayBuffer, deviceId: string): Promise<boolean> {
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// 这里实现具体的DFU协议
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// 需要根据设备的DFU协议来实现
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// 这是一个简化的实现，实际需要根据具体设备协议调整
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try {
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// 1. 进入DFU模式
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await this.enterDFUMode(deviceId)
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// 2. 发送固件数据包
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await this.sendFirmwarePackets(firmwareData, deviceId)
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// 3. 验证升级结果
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await this.verifyUpdate(deviceId)
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return true
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} catch (error) {
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console.error('DFU执行失败:', error)
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return false
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}
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}
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/**
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* 进入DFU模式
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*/
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private async enterDFUMode(deviceId: string): Promise<void> {
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// 实现进入DFU模式的逻辑
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// 通常需要发送特定的命令到设备
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}
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/**
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* 发送固件数据包
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*/
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private async sendFirmwarePackets(firmwareData: ArrayBuffer, deviceId: string): Promise<void> {
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// 实现分包发送固件的逻辑
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const packetSize = 20 // 根据设备协议调整
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const totalPackets = Math.ceil(firmwareData.byteLength / packetSize)
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for (let i = 0; i < totalPackets; i++) {
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const start = i * packetSize
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const end = Math.min(start + packetSize, firmwareData.byteLength)
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const packet = firmwareData.slice(start, end)
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// 发送数据包
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await this.sendPacket(packet, deviceId)
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// 更新进度
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const progress = Math.round((i + 1) / totalPackets * 100)
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this.updateProgress('uploading', 70 + (progress * 0.2), `上传进度: ${i + 1}/${totalPackets}`)
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}
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}
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/**
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* 发送单个数据包
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*/
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private async sendPacket(packet: ArrayBuffer, deviceId: string): Promise<void> {
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// 实现BLE发送数据包的逻辑
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}
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/**
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* 验证升级结果
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*/
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private async verifyUpdate(deviceId: string): Promise<void> {
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// 实现验证升级结果的逻辑
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}
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/**
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* 计算简单校验和
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*/
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private calculateSimpleHash(data: ArrayBuffer): string {
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const view = new Uint8Array(data)
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let hash = 0
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for (let i = 0; i < view.length; i++) {
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hash = ((hash << 5) - hash + view[i]) & 0xffffffff
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}
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return hash.toString(16)
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}
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/**
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* 比较版本号
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*/
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private compareVersions(version1: string, version2: string): number {
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const v1Parts = version1.split('.').map((item) => parseInt(item))
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const v2Parts = version2.split('.').map((item) => parseInt(item))
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for (let i = 0; i < Math.max(v1Parts.length, v2Parts.length); i++) {
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const v1 = v1Parts[i] != null ? v1Parts[i] : 0
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const v2 = v2Parts[i] != null ? v2Parts[i] : 0
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if (v1 > v2) return 1
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if (v1 < v2) return -1
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}
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return 0
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}
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/**
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* 更新进度
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*/
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private updateProgress(stage: 'downloading' | 'verifying' | 'uploading' | 'upgrading' | 'completed', progress: number, message: string): void {
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if (this.progressCallback != null) {
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this.progressCallback({
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stage,
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progress: Math.min(100, Math.max(0, progress)),
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message
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})
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}
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}
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}
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// 导出单例实例
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export const dfuTool = new DFUTool(null)
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