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Mi Watch 3 Lite: Fix firmware update

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This commit is contained in:
Andreas Shimokawa
2023-11-26 00:22:37 +01:00
parent eacb9be552
commit 6f2876fa66
2 changed files with 14 additions and 4 deletions
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15
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/xiaomi/services/XiaomiDataUploadService.java
View File

@@ -50,6 +50,8 @@ public class XiaomiDataUploadService extends AbstractXiaomiService {
private byte currentType; private byte currentType;
private byte[] currentBytes; private byte[] currentBytes;
private int chunkSize;
public XiaomiDataUploadService(final XiaomiSupport support) { public XiaomiDataUploadService(final XiaomiSupport support) {
super(support); super(support);
} }
@@ -59,14 +61,21 @@ public class XiaomiDataUploadService extends AbstractXiaomiService {
switch (cmd.getSubtype()) { switch (cmd.getSubtype()) {
case CMD_UPLOAD_START: case CMD_UPLOAD_START:
final XiaomiProto.DataUploadAck dataUploadAck = cmd.getDataUpload().getDataUploadAck(); final XiaomiProto.DataUploadAck dataUploadAck = cmd.getDataUpload().getDataUploadAck();
LOG.debug("Got upload start, unknown2={}, unknown4={}", dataUploadAck.getUnknown2(), dataUploadAck.getUnknown4()); LOG.debug("Got upload start, unknown2={}, resumePosition={}", dataUploadAck.getUnknown2(), dataUploadAck.getResumePosition());
if (dataUploadAck.getUnknown2() != 0 || dataUploadAck.getUnknown4() != 0) { if (dataUploadAck.getUnknown2() != 0 || dataUploadAck.getResumePosition() != 0) {
LOG.warn("Unexpected response"); LOG.warn("Unexpected response");
this.currentType = 0; this.currentType = 0;
this.currentBytes = null; this.currentBytes = null;
return; return;
} }
if (dataUploadAck.hasChunkSize()) {
chunkSize = dataUploadAck.getChunkSize();
} else {
chunkSize = 2048;
}
doUpload(currentType, currentBytes); doUpload(currentType, currentBytes);
return; return;
} }
@@ -131,7 +140,7 @@ public class XiaomiDataUploadService extends AbstractXiaomiService {
buf2.putInt(CheckSums.getCRC32(buf1.array())); buf2.putInt(CheckSums.getCRC32(buf1.array()));
final byte[] payload = buf2.array(); final byte[] payload = buf2.array();
final int partSize = 2044; // 2 + 2 at beginning of each for total and progress final int partSize = chunkSize - 4; // 2 + 2 at beginning of each for total and progress
final int totalParts = (int) Math.ceil(payload.length / (float) partSize); final int totalParts = (int) Math.ceil(payload.length / (float) partSize);
characteristic.setCallback(remainingParts -> { characteristic.setCallback(remainingParts -> {

3
app/src/main/proto/xiaomi.proto
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@@ -869,5 +869,6 @@ message DataUploadRequest {
message DataUploadAck { message DataUploadAck {
optional bytes md5sum = 1; optional bytes md5sum = 1;
optional uint32 unknown2 = 2; // 0 optional uint32 unknown2 = 2; // 0
optional uint32 unknown4 = 4; // 0 optional uint32 resumePosition = 4;
optional uint32 chunkSize = 5; // 4096 on Redmi Watch 3 Active, Nonexistent on Mi Band 8
} }