OTAManager.m
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//
// OTAManager.m
// ActsBluetoothOTA
//
// Created by inidhu on 2019/5/20.
// Copyright © 2019 Actions. All rights reserved.
//
#import "OTAManager.h"
#import "Utils.h"
@implementation OTAManager {
NSMutableData *receiveBuffer;
NSInteger waitTimeout;
NSInteger restartTimeout;
NSInteger otaUnit;
NSInteger interval;
NSInteger ackEnable;
NSString *fwVersion;
NSData *vRAM;
NSInteger otaMode;
NSInteger batteryThreshold;
OTAStatus curState;
NSData *otaFileData;
NSTimer *timeoutTimer;
BOOL remoteCrcSupport;
NSInteger mWriteBytes;
NSInteger maxMtu;
}
- (id)init {
self = [super init];
fwVersion = @"1.01";
otaMode = 0;
batteryThreshold = 30;
remoteCrcSupport = NO;
return self;
}
- (BOOL)setOTAFile:(NSString *) path {
if (path.length <= 0)
return NO;
NSFileHandle *handle = [NSFileHandle fileHandleForReadingAtPath:path];
otaFileData = [handle readDataToEndOfFile];
return YES;
}
- (NSString *)getOTAVersion {
NSData *data = [otaFileData subdataWithRange:NSMakeRange(0, 4)];
NSString *magic = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
if ([magic isEqualToString:@"AOTA"]) {
data = [otaFileData subdataWithRange:NSMakeRange(64, 32)];
return [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
} else {
data = [otaFileData subdataWithRange:NSMakeRange(12, 4)];
return [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
}
}
- (void)scheduleTimeoutTimer {
[self removeTimeoutTimer];
timeoutTimer = [NSTimer scheduledTimerWithTimeInterval:2.0 target:self selector:@selector(timeoutReport) userInfo:nil repeats:NO];
}
- (void)removeTimeoutTimer {
if (timeoutTimer) {
[timeoutTimer invalidate];
}
}
- (void)timeoutReport {
[self notifyStatus:STATE_UNKNOWN];
}
- (void)readOTAHeader {
NSData *data = [otaFileData subdataWithRange:NSMakeRange(0, 4)];
NSString *magic = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
if ([magic isEqualToString:@"AOTA"]) {
data = [otaFileData subdataWithRange:NSMakeRange(64, 32)];
fwVersion = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
Byte placeholder[16] = {0x00};
vRAM = [NSData dataWithBytes:placeholder length:16];
} else {
data = [otaFileData subdataWithRange:NSMakeRange(12, 4)];
fwVersion = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
vRAM = [otaFileData subdataWithRange:NSMakeRange(56, 16)];
}
}
- (void)checkRemoteStatus {
NSMutableArray *tlvs = [[NSMutableArray alloc] init];
// package version
NSData *tlv = [self assembleType:0x01 length:fwVersion.length value:[fwVersion dataUsingEncoding:NSUTF8StringEncoding]];
[tlvs addObject:tlv];
// component size
Byte valueSize[2] = {0x00, 0x00};
tlv = [self assembleType:0x02 length:2 value:[NSData dataWithBytes:valueSize length:2]];
[tlvs addObject:tlv];
// VRAM
tlv = [self assembleType:0x03 length:vRAM.length value:vRAM];
[tlvs addObject:tlv];
// ota work mode
Byte valueMode[1] = {(Byte)otaMode};
tlv = [self assembleType:0x04 length:1 value:[NSData dataWithBytes:valueMode length:1]];
[tlvs addObject:tlv];
// feature support: Support CRC32 Checksum
Byte valueFeature[1] = {(Byte)0x1};
tlv = [self assembleType:0x09 length:1 value:[NSData dataWithBytes:valueFeature length:1]];
[tlvs addObject:tlv];
NSData *command = [self assembleCommand:0x01 withTLVs:tlvs];
[self sendData:command];
}
- (void)prepare{
[self notifyStatus:STATE_PREPARING];
[self readOTAHeader];
[self checkRemoteStatus];
[self scheduleTimeoutTimer];
}
- (void)setMaxMtu:(NSInteger)maxMtu; {
self -> maxMtu = maxMtu;
}
- (void)upgrade {
/* [self notifyStatus:STATE_PREPARING];
[self readOTAHeader];
[self checkRemoteStatus];
[self scheduleTimeoutTimer];
*/
[self requestRemoteParameters];
[self scheduleTimeoutTimer];
mWriteBytes = 0;
}
- (void)confirmUpdateAndReboot {
NSLog(@"confirmUpdateAndReboot");
NSData *buffer = [self assembleCommand:0x06 withTLVs:nil];
[self sendData:buffer];
}
/* TLV结构组装 */
- (NSData *)assembleType:(NSInteger) type length:(NSInteger) length value:(NSData *) value {
NSInteger len = 3;
Byte *buffer = (Byte *)malloc(len);
NSInteger index = 0;
// Type
buffer[index++] = (Byte) (type & 0xFF);
// Length
buffer[index++] = (Byte) (length & 0xFF);
buffer[index++] = (Byte) ((length >> 8) & 0xFF);
// Value
NSMutableData *data = [NSMutableData dataWithBytes:buffer length:len];
[data appendData:value];
free(buffer);
return data;
}
/* 命令组装 */
- (NSData *)assembleCommand:(NSInteger) cmdId withTLVs:(NSArray *) subTLVs {
NSInteger subTLVsLen = 0;
if (subTLVs && subTLVs.count > 0) {
for (NSData *tlv in subTLVs)
subTLVsLen += tlv.length;
}
// Header
Byte *buffer = (Byte *)malloc(2);
// Server ID
buffer[0] = (Byte) 0x09;
// Command ID
buffer[1] = (Byte) (cmdId & 0xFF);
NSData *header = [NSData dataWithBytes:buffer length:2];
free(buffer);
// Super TLV
NSData *superTLV = [self assembleType:0x80 length:subTLVsLen value:nil];
NSMutableData *cmdData = [NSMutableData dataWithData:header];
[cmdData appendData:superTLV];
for (NSData *tlv in subTLVs) {
[cmdData appendData:tlv];
}
return cmdData;
}
- (void)notifyStatus:(OTAStatus) state {
if (curState == state)
return;
curState = state;
if(_delegate && [_delegate respondsToSelector:@selector(onStatus:)]) {
[_delegate onStatus:curState];
}
}
- (NSArray *)readOTADataFrom:(NSInteger) offset withLength:(NSInteger) length byBitmap:(NSData *) bitmap groupNum:(int) groupNum {
NSLog(@"groupNum:%d", groupNum);
NSArray *pkgIdx = [Utils getZeroBitIndexMap:bitmap groupNum:groupNum];
NSInteger pkgNum = pkgIdx.count;
NSLog(@"pkgNum:%d", pkgNum);
NSMutableArray *packages = [[NSMutableArray alloc] init];
for (NSInteger i = 0; i < pkgNum; i++) {
NSInteger index = [pkgIdx[i] integerValue];
NSInteger odd = length - index * otaUnit;
if (odd <= 0)
break;
NSInteger o = offset + index * otaUnit;
NSInteger len = odd > otaUnit ? otaUnit : odd;
NSData *pkg = [otaFileData subdataWithRange:NSMakeRange(o, len)];
NSLog(@"i: %ld o: %ld pkgIdx: %ld pkgNum: %ld count: %ld", i, o, index, pkgNum, pkg.length);
if (pkg.length <= 0)
break;
[packages addObject:pkg];
}
return packages;
}
- (void)sendData:(NSData *) data {
if(_delegate && [_delegate respondsToSelector:@selector(sendData:)]) {
[_delegate sendData:data];
}
}
- (void)sendData:(NSData *) data index:(int) i{
if(_delegate && [_delegate respondsToSelector:@selector(sendData:index:)]) {
[_delegate sendData:data index:i];
}
}
- (void)requestRemoteParameters {
NSData *data = [self assembleCommand:0x02 withTLVs:nil];
[self sendData:data];
}
- (void)notifyRemoteAppReady:(NSInteger) state {
// ota status
Byte bytes[1] = {(Byte)(state & 0xFF)};
NSData *value = [NSData dataWithBytes:bytes length:1];
NSData *tlv = [self assembleType:0x01 length:0x01 value:value];
NSArray *tlvs = [NSArray arrayWithObject:tlv];
NSData *data = [self assembleCommand:0x09 withTLVs:tlvs];
[self sendData:data];
}
/* 去除开始位置无效数据 */
- (NSData *)abandonInvalidHeaderData:(NSData *) data {
Byte *bytes = (Byte *)[data bytes];
NSInteger length = data.length;
NSInteger index = 0;
for (index = 0; index < length; index++) {
if (bytes[index] == 0x09)
break;
}
return [data subdataWithRange:NSMakeRange(index, length - index)];
}
- (BOOL)receiveData:(NSData *) data {
if (!receiveBuffer) {
receiveBuffer = [[NSMutableData alloc] init];
}
[receiveBuffer appendData:data];
data = [self abandonInvalidHeaderData:receiveBuffer];
receiveBuffer = [NSMutableData dataWithData:data];
/* 数据长度不足,等待下一次数据包 */
if (data.length <= 5) {
return NO;
}
Byte *bytes = (Byte *)[data bytes];
NSInteger length = data.length;
NSInteger index = 0;
Byte serviceId = bytes[index++];
Byte commandId = bytes[index++];
Byte superTLV[3] = {0};
superTLV[0] = bytes[index++];
superTLV[1] = bytes[index++];
superTLV[2] = bytes[index++];
NSInteger subTLVsLen = superTLV[1] + (superTLV[2] << 8);
/* 数据长度不足,等待下一次数据包 */
if (length - index < subTLVsLen) {
return NO;
}
NSData *tmp = [data subdataWithRange:NSMakeRange(index + subTLVsLen, length - index - subTLVsLen)];
receiveBuffer = [NSMutableData dataWithData:tmp];
NSData *tlvs = [data subdataWithRange:NSMakeRange(index, subTLVsLen)];
bytes = (Byte *)[tlvs bytes];
length = tlvs.length;
index = 0;
switch (commandId) {
case 0x01: {
if (bytes[index] != 0x7F) {
return NO;
}
index += 3;
// index++;
// int length = bytes[index];
// index++;
// length += (((int)bytes[index]) << 8);
// index++;
NSLog(@"length: %ld", length);
NSInteger errCode = [Utils bytes2UInt32:bytes index:index];
index += 4;
NSLog(@"error code: %ld", errCode);
[self removeTimeoutTimer];
NSData *data;
RemoteStatus *status = [[RemoteStatus alloc] init];
for ( ; index < length; ) {
int type = bytes[index++];
int len = bytes[index++];
len += (((int)bytes[index]) << 8);
index++;
NSLog(@"index: %ld, type: %d, len: %d", index, type, len);
switch (type) {
case 0x04: // battery threshold
status.batteryThreshold = bytes[index++];
break;
case 0x05: // version name
data = [NSData dataWithBytes:&bytes[index] length:len];
index += len;
status.versionName = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
break;
case 0x06: // board name
data = [NSData dataWithBytes:&bytes[index] length:len];
index += len;
status.boardName = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
break;
case 0x07: // hardware rev
data = [NSData dataWithBytes:&bytes[index] length:len];
index += len;
status.hardwareRev = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
break;
case 0x08: // version code
status.versionCode = [Utils bytes2UInt32:bytes index:index];
index += 4;
break;
case 0x09: // feature support
status.featureSupport = bytes[index++];
remoteCrcSupport = status.featureSupport & 0x01;
break;
default:
index += len;
break;
}
}
if (errCode == 100000) {
// [self requestRemoteParameters];
// [self scheduleTimeoutTimer];
if(_delegate && [_delegate respondsToSelector:@selector(receiveRemoteStatus:)]) {
[_delegate receiveRemoteStatus:status];
}
[self notifyStatus:STATE_PREPARED];
} else {
curState = STATE_UNKNOWN;
if(_delegate && [_delegate respondsToSelector:@selector(onError:)]) {
[_delegate onError:errCode];
}
}
break;
}
case 0x02:{
// app wait timeout
index += 3;
waitTimeout = [Utils bytes2Short:bytes index:index];
index += 2;
// device restart timeout
index += 3;
restartTimeout = [Utils bytes2Short:bytes index:index];
index += 2;
// ota unit size
index += 3;
otaUnit = [Utils bytes2Short:bytes index:index];
NSLog(@"otaUnit:%ld", otaUnit);
if (maxMtu != 0) {
if ((maxMtu - 10) >= otaUnit) {
} else {
otaUnit = maxMtu - 10; //根据最大mtu定制化设置单包最大数据量
}
} else {
otaUnit = 172;
}
index += 2;
// interval
index += 3;
interval = [Utils bytes2Short:bytes index:index];
index += 2;
// ack enable
index += 3;
ackEnable = bytes[index] & 0xFF;
index++;
[self removeTimeoutTimer];
[self notifyRemoteAppReady:1];
// [self notifyStatus:STATE_PREPARED];
break;
}
case 0x03:{
[self notifyStatus:STATE_TRANSFERRING];
if (ackEnable == 1) {
NSArray *array = [NSArray arrayWithObject:tlvs];
NSData *buf = [self assembleCommand:0x03 withTLVs:array];
[self sendData:buf];
}
// file offset
int index = 3;
int offset = [Utils bytes2UInt32:bytes index:index];
index += 4;
// file length
index += 3;
int length = [Utils bytes2UInt32:bytes index:index];
index += 4;
// file apply bitmap
if (tlvs.length > 17) {
index ++;
int len = [Utils bytes2Short:bytes index:index];
index += 2;
if (tlvs.length >= 17 + len) {
Byte *bitmap = (Byte *)malloc(len);
for (int i = 0; i < len; i++) {
bitmap[i] = bytes[index++];
NSLog(@"bitmap[%d]: %x", i, bitmap[i]);
}
NSData *bitmapData = [NSData dataWithBytes:bitmap length:len];
free(bitmap);
// 计算组数
int groupNum = length / otaUnit + 1;
NSArray *frames = [self readOTADataFrom:offset withLength:length byBitmap:bitmapData groupNum:groupNum];
// for (NSInteger i = 0; i < frames.count; i++) {
for (int i = 0; i < frames.count; i++) {
Byte b[1] = {(Byte)(i % 256)};
NSMutableData *pkg = [NSMutableData dataWithBytes:b length:1];
NSInteger command = 0x04;
if (remoteCrcSupport) {
command = 0x0B;
int32_t checksum = [Utils crc32:frames[i]];
[pkg appendData: [NSData dataWithBytes: &checksum length: 4]];
}
[pkg appendData:frames[i]];
NSArray *array = [NSArray arrayWithObject:pkg];
NSData *data = [self assembleCommand:command withTLVs:array];
[self sendData:data index:i];
// NSLog(@"nick_data:%@", data);
mWriteBytes += data.length;
[_delegate receiveSpeed:mWriteBytes];
}
}
}
break;
}
case 0x05:{
// package valid size
index += 3;
int pkgValidSize = [Utils bytes2UInt32:bytes index:index];
index += 4;
// received file size
index += 3;
int receivedSize = [Utils bytes2UInt32:bytes index:index];
index += 4;
NSLog(@"receive 0x0905 pkgValidSize: %d, receivedSize: %d", pkgValidSize, receivedSize);
break;
}
case 0x06:{
index += 3;
int valid = bytes[index] & 0xFF;
index++;
// NSData *buffer = [self assembleCommand:0x06 withTLVs:nil];
// [self sendData:buffer];
NSLog(@"receive 0x0906 valid: %d", valid);
if (_delegate && [_delegate respondsToSelector:@selector(onStatus:)]) {
if (valid == 1) {
[_delegate onStatus:STATE_TRANSFERRED];
} else {
[_delegate onStatus:STATE_UNKNOWN];
}
}
break;
}
case 0x07:{
if (bytes[index++] == 0x7F) {
index += 2;
int errCode = [Utils bytes2UInt32:bytes index:index];
index += 4;
if (errCode != 100000
&& _delegate
&& [_delegate respondsToSelector:@selector(onError:)]) {
NSLog(@"0x0907 Error: %d", errCode);
[_delegate onError:errCode];
}
}
break;
}
case 0x7D:{
int type = bytes[index] & 0xFF;
index++;
int len = [Utils bytes2Short:bytes index:index];
index += 2;
int psn = bytes[index] & 0xFF;
index++;
NSLog(@"0x097D, : %d, len: %d", psn, len);
type = bytes[index] & 0xFF;
index++;
len = [Utils bytes2Short:bytes index:index];
index += 2;
NSData *buffer = [tlvs subdataWithRange:NSMakeRange(index, len)];
NSLog(@"Receive 0x097D, data size: %d, %@", len, buffer);
if (_delegate && [_delegate respondsToSelector:@selector(receiveAudioPSN:data:)]) {
[_delegate receiveAudioPSN:psn data:buffer];
}
break;
}
default:
break;
}
// 如果还有剩余数据,则继续处理
if (receiveBuffer.length > 0) {
[self receiveData:nil];
}
return YES;
}
@end