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zclOTA_FileID_t remoteFileId;
memset(&remoteFileId,0x00,sizeof(remoteFileId));
memcpy(&remoteFileId,&pParam->fileId,sizeof(pParam->fileId));
dbg_print(PRINT_LEVEL_INFO,"zclOTA_Srv_QueryNextImageReq: remote manufacturer: 0x%x type 0x%x file version 0x%x\n",
remoteFileId.manufacturer, remoteFileId.type,
remoteFileId.version);
// Request the next image for this device from image database
status = OtaServer_GetImage(&pParam->fileId, &imageSize,
pParam->hardwareVersion, NULL, options, pSrcAddr);
dbg_print(PRINT_LEVEL_INFO,"zclOTA_Srv_QueryNextImageReq: Match image for manufacturer: 0x%x type 0x%x file version 0x%x returned with status 0x%x\n",
pParam->fileId.manufacturer, pParam->fileId.type,
pParam->fileId.version, status);
//sanity check remote and will upgrade firmware version(Image A or Image B) prevent incorrect firmware
if((remoteFileId.version == 0x1 && pParam->fileId.version == 0xAAAA0000)||
(remoteFileId.version == 0xAAAA0000 && pParam->fileId.version == 0xAAAA0000) ||
(remoteFileId.version == 0xBBBB1000 && pParam->fileId.version == 0xBBBB1000))
{
//if remote version equal current version,we must be not upgrade firmware(ping-ponging for CC2538 soc)
queryRsp.status = ZOtaImageInvalid;
dbg_print(PRINT_LEVEL_INFO,"zclOTA_Srv_QueryNextImageReq: current firmware not suitable 0x%X ,upgrade abort\n",pSrcAddr->addr.shortAddr);
goto Ended;
}else{
//perfect
}
// verify manufacturer id and image type
if ( ( param.fileId.type == zclOTA_ImageType ) &&
( param.fileId.manufacturer == zclOTA_ManufacturerId ) )
{
// store file version and image size
zclOTA_DownloadedFileVersion = param.fileId.version;
zclOTA_DownloadedImageSize = param.imageSize;
// initialize other variables
zclOTA_FileOffset = 0;
zclOTA_ClientPdState = ZCL_OTA_PD_MAGIC_0_STATE;
// set state to 'in progress'
zclOTA_ImageUpgradeStatus = OTA_STATUS_IN_PROGRESS;
// store server address
zclOTA_serverAddr = pInMsg->msg->srcAddr;
// Store the file ID
osal_memcpy ( &zclOTA_CurrentDlFileId, ¶m.fileId, sizeof ( zclOTA_FileID_t ) );
// send image block request
osal_start_timerEx ( zclOTA_TaskID, ZCL_OTA_IMAGE_BLOCK_REQ_DELAY_EVT, zclOTA_MinBlockReqDelay );
status = ZCL_STATUS_CMD_HAS_RSP;
// Request the IEEE address of the server to put into the
// ATTRID_UPGRADE_SERVER_ID attribute
ZDP_IEEEAddrReq ( pInMsg->msg->srcAddr.addr.shortAddr, ZDP_ADDR_REQTYPE_SINGLE, 0, 0 );
osal_stop_timerEx ( zclOTA_TaskID, ZCL_OTA_IMAGE_QUERY_TO_EVT );
}
}
3.能不能获取到remoteFileID，我们随便找一个Z-Stack 3.0的 OTA dongle工程分析一下，找到MT_OTA.c文件，可以看到，OTA client发送给OTA server的“image request”一定让MT_OtaGetImage函数来处理，这个函数里面是添加了fileID这一项的，最后把请求发送Z-Tool控制台，这里我们认为Linux gateway扮演了控制台的角色，只是由于2014年释出的zigbee Linux geteway并不适应最新的Z-Stack 3.0 ZNP工程，所以我做了两件事情，一、不得不把OTA dongle里面的OTA移植到最新的Z-Stack 3.0 ZNP工程里面，而且让它工作，另外添加了“image notify”功能，默认是不带的；二、把zigbee Linux gateway里面的OTA server源码单独移植出来使用，这样就脱离了复杂且容易出bug的gateway代码。目前测试下来没有问题，已经实现了OTA server升级各个client。
uint8 MT_OtaGetImage(afAddrType_t *pAddr, zclOTA_FileID_t *pFileId, uint16 hwVer,
uint8 *ieee, uint8 options)
{
uint8 msgLen;
uint8 *pBuf;
uint8 *p;
// Get length
msgLen = MT_OTA_GET_IMG_MSG_LEN;
// Allocate a buffer
if ((p = pBuf = MT_TransportAlloc(0, msgLen)) != NULL)
{
// build header
*p++ = msgLen;
*p++ = (uint8) MT_RPC_CMD_AREQ | (uint8) MT_RPC_SYS_OTA;
*p++ = MT_OTA_NEXT_IMG_REQ;
// Add the file ID
p = OTA_FileIdToStream(pFileId, p);
// Add the device address
p = OTA_AfAddrToStream(pAddr, p);
// Add the options
*p++ = options;
// Add the hardware ID (optional)
*p++ = LO_UINT16(hwVer);
*p = HI_UINT16(hwVer);
if (ieee)
osal_memcpy(p, ieee, Z_EXTADDR_LEN);
// Send command to server
MT_TransportSend(pBuf);
return ZSuccess;
}
return ZMemError;
}
4.也许正如@VV所说，TI还在开发新的zigbee Linux gateway以适应最新的Z-Stack 3.0协议栈，但至少到目前为止，还没有释出任何代码，所以基本上还得依赖旧的版本来开发，或者使用简单的znp-host-framework代替多进程且容易出问题的zigbee Linux gateway，最后，理解了整个zigbee端的代码和gateway端的代码，做起来都得心应手。
uiPrintfEx(trDEBUG,"zclOTA_Srv_QueryNextImageReq: Remote image for manu 0x%x" " type 0x%x file version 0x%x", remotefileID.manufacturer, remotefileID.type, remotefileID.version);
//Respond to a "Query Next" only if Permit set to 0 if (zclOTA_Permit == OTA_ENABLE_MODES__DOWNLOAD_ENABLE) {
if (pParam->fieldControl) { options |= MT_OTA_HW_VER_PRESENT_OPTION; //0x01 }
// Request the next image for this device from image database //获取Image，同时pImage->imageData->header.fileId.version给到 pParam->fileID.version status = OtaServer_GetImage(&pParam->fileId, &imageSize, pParam->hardwareVersion, NULL, options, pSrcAddr);
uiPrintfEx(trDEBUG,"zclOTA_Srv_QueryNextImageReq: Match image for manu 0x%x" " type 0x%x file version 0x%x returned with status 0x%x\n", pParam->fileId.manufacturer, pParam->fileId.type, pParam->fileId.version, status);
if (status == OTASERVER_SUCCESS) { //Fill in the response parameters memcpy(&queryRsp.fileId, &pParam->fileId, sizeof(zclOTA_FileID_t)); queryRsp.status = ZSuccess; queryRsp.imageSize = imageSize; //Get Filesize using fileId ?!
//No image available, and not authorized. What should I use in case of //abort ? //queryRsp.status = ZOtaAbort; queryRsp.status = ZOtaNoImageAvailable;
//Download status sent only on Upgrade End Req //sendDownloadStatus(appConnectionHandle, pSrcAddr, OTA_STATUS__ABORT); }
// Fill in the response parameters memcpy(&queryRsp.fileId, &pParam->fileId, sizeof(zclOTA_FileID_t)); queryRsp.imageSize = 0;
