Amazfit GTS 2 Mini: Initial support

(See #2152)

This also fixes a glitch with GTS2 firmware update code which is still untested

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/amazfitgts2/AmazfitGTS2FWHelper.java

@@ -23,7 +23,7 @@ import android.net.Uri;
 import java.io.IOException;
 
 import nodomain.freeyourgadget.gadgetbridge.devices.huami.HuamiFWHelper;
-import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.amazfitgtr.AmazfitGTRFirmwareInfo;
+import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.amazfitgts2.AmazfitGTS2FirmwareInfo;
 
 public class AmazfitGTS2FWHelper extends HuamiFWHelper {
 
@@ -33,7 +33,7 @@ public class AmazfitGTS2FWHelper extends HuamiFWHelper {
 
     @Override
     protected void determineFirmwareInfo(byte[] wholeFirmwareBytes) {
-        firmwareInfo = new AmazfitGTRFirmwareInfo(wholeFirmwareBytes);
+        firmwareInfo = new AmazfitGTS2FirmwareInfo(wholeFirmwareBytes);
         if (!firmwareInfo.isHeaderValid()) {
             throw new IllegalArgumentException("Not an Amazfit GTS 2 firmware");
         }

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/amazfitgts2/AmazfitGTS2MiniCoordinator.java

@@ -0,0 +1,61 @@
+/*  Copyright (C) 2017-2021 Andreas Shimokawa, Daniele Gobbetti, João
+    Paulo Barraca, José Rebelo, pangwalla, tiparega
+
+    This file is part of Gadgetbridge.
+
+    Gadgetbridge is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Gadgetbridge is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+package nodomain.freeyourgadget.gadgetbridge.devices.huami.amazfitgts2;
+
+import android.bluetooth.BluetoothDevice;
+import android.content.Context;
+import android.net.Uri;
+
+import androidx.annotation.NonNull;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import nodomain.freeyourgadget.gadgetbridge.devices.InstallHandler;
+import nodomain.freeyourgadget.gadgetbridge.impl.GBDeviceCandidate;
+import nodomain.freeyourgadget.gadgetbridge.model.DeviceType;
+
+public class AmazfitGTS2MiniCoordinator extends AmazfitGTS2Coordinator {
+    private static final Logger LOG = LoggerFactory.getLogger(AmazfitGTS2MiniCoordinator.class);
+
+    @Override
+    public DeviceType getDeviceType() {
+        return DeviceType.AMAZFITGTS2_MINI;
+    }
+
+    @NonNull
+    @Override
+    public DeviceType getSupportedType(GBDeviceCandidate candidate) {
+        try {
+            BluetoothDevice device = candidate.getDevice();
+            String name = device.getName();
+            if (name != null && name.equalsIgnoreCase("Amazfit GTS 2 Mini")) {
+                return DeviceType.AMAZFITGTS2_MINI;
+            }
+        } catch (Exception ex) {
+            LOG.error("unable to check device support", ex);
+        }
+        return DeviceType.UNKNOWN;
+    }
+
+    @Override
+    public InstallHandler findInstallHandler(Uri uri, Context context) {
+        AmazfitGTS2MiniFWInstallHandler handler = new AmazfitGTS2MiniFWInstallHandler(uri, context);
+        return handler.isValid() ? handler : null;
+    }
+}

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/amazfitgts2/AmazfitGTS2MiniFWHelper.java

@@ -0,0 +1,41 @@
+/*  Copyright (C) 2016-2021 Andreas Shimokawa, Carsten Pfeiffer, Daniele
+    Gobbetti, pangwalla
+
+    This file is part of Gadgetbridge.
+
+    Gadgetbridge is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Gadgetbridge is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+package nodomain.freeyourgadget.gadgetbridge.devices.huami.amazfitgts2;
+
+import android.content.Context;
+import android.net.Uri;
+
+import java.io.IOException;
+
+import nodomain.freeyourgadget.gadgetbridge.devices.huami.HuamiFWHelper;
+import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.amazfitgts2.AmazfitGTS2MiniFirmwareInfo;
+
+public class AmazfitGTS2MiniFWHelper extends HuamiFWHelper {
+
+    public AmazfitGTS2MiniFWHelper(Uri uri, Context context) throws IOException {
+        super(uri, context);
+    }
+
+    @Override
+    protected void determineFirmwareInfo(byte[] wholeFirmwareBytes) {
+        firmwareInfo = new AmazfitGTS2MiniFirmwareInfo(wholeFirmwareBytes);
+        if (!firmwareInfo.isHeaderValid()) {
+            throw new IllegalArgumentException("Not an Amazfit GTS 2 Mini firmware");
+        }
+    }
+}

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/amazfitgts2/AmazfitGTS2MiniFWInstallHandler.java

@@ -0,0 +1,49 @@
+/*  Copyright (C) 2015-2021 Andreas Shimokawa, Carsten Pfeiffer, pangwalla
+
+    This file is part of Gadgetbridge.
+
+    Gadgetbridge is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Gadgetbridge is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+package nodomain.freeyourgadget.gadgetbridge.devices.huami.amazfitgts2;
+
+import android.content.Context;
+import android.net.Uri;
+
+import java.io.IOException;
+
+import nodomain.freeyourgadget.gadgetbridge.R;
+import nodomain.freeyourgadget.gadgetbridge.devices.miband.AbstractMiBandFWHelper;
+import nodomain.freeyourgadget.gadgetbridge.devices.miband.AbstractMiBandFWInstallHandler;
+import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
+import nodomain.freeyourgadget.gadgetbridge.model.DeviceType;
+
+class AmazfitGTS2MiniFWInstallHandler extends AbstractMiBandFWInstallHandler {
+    AmazfitGTS2MiniFWInstallHandler(Uri uri, Context context) {
+        super(uri, context);
+    }
+
+    @Override
+    protected String getFwUpgradeNotice() {
+        return mContext.getString(R.string.fw_upgrade_notice_amazfitgtr, helper.getHumanFirmwareVersion());
+    }
+
+    @Override
+    protected AbstractMiBandFWHelper createHelper(Uri uri, Context context) throws IOException {
+        return new AmazfitGTS2MiniFWHelper(uri, context);
+    }
+
+    @Override
+    protected boolean isSupportedDeviceType(GBDevice device) {
+        return device.getType() == DeviceType.AMAZFITGTS2_MINI;
+    }
+}

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/model/DeviceType.java

@@ -56,6 +56,7 @@ public enum DeviceType {
     AMAZFITVERGEL(29, R.drawable.ic_device_amazfit_bip, R.drawable.ic_device_amazfit_bip_disabled, R.string.devicetype_amazfit_vergel),
     AMAZFITBIPUPRO(30, R.drawable.ic_device_amazfit_bip, R.drawable.ic_device_amazfit_bip_disabled, R.string.devicetype_amazfit_bipu),
     AMAZFITNEO(31, R.drawable.ic_device_amazfit_bip, R.drawable.ic_device_amazfit_bip_disabled, R.string.devicetype_amazfit_neo),
+    AMAZFITGTS2_MINI(32, R.drawable.ic_device_amazfit_bip, R.drawable.ic_device_amazfit_bip_disabled, R.string.devicetype_amazfit_gts2_mini),
     HPLUS(40, R.drawable.ic_device_hplus, R.drawable.ic_device_hplus_disabled, R.string.devicetype_hplus),
     MAKIBESF68(41, R.drawable.ic_device_hplus, R.drawable.ic_device_hplus_disabled, R.string.devicetype_makibes_f68),
     EXRIZUK8(42, R.drawable.ic_device_hplus, R.drawable.ic_device_hplus_disabled, R.string.devicetype_exrizu_k8),

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/DeviceSupportFactory.java

@@ -39,6 +39,7 @@ import nodomain.freeyourgadget.gadgetbridge.service.devices.casio.CasioGBX100Dev
 import nodomain.freeyourgadget.gadgetbridge.service.devices.hplus.HPlusSupport;
 import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.HuamiSupport;
 import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.amazfitband5.AmazfitBand5Support;
+import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.amazfitgts2.AmazfitGTS2MiniSupport;
 import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.amazfitneo.AmazfitNeoSupport;
 import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.amazfitbip.AmazfitBipLiteSupport;
 import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.amazfitbip.AmazfitBipSupport;
@@ -205,6 +206,9 @@ public class DeviceSupportFactory {
                     case AMAZFITGTS2:
                         deviceSupport = new ServiceDeviceSupport(new AmazfitGTS2Support(), EnumSet.of(ServiceDeviceSupport.Flags.BUSY_CHECKING));
                         break;
+                    case AMAZFITGTS2_MINI:
+                        deviceSupport = new ServiceDeviceSupport(new AmazfitGTS2MiniSupport(), EnumSet.of(ServiceDeviceSupport.Flags.BUSY_CHECKING));
+                        break;
                     case AMAZFITCOR:
                         deviceSupport = new ServiceDeviceSupport(new AmazfitCorSupport(), EnumSet.of(ServiceDeviceSupport.Flags.BUSY_CHECKING));
                         break;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huami/amazfitgts2/AmazfitGTS2MiniFirmwareInfo.java

@@ -0,0 +1,117 @@
+/*  Copyright (C) 2017-2021 Andreas Shimokawa, Daniele Gobbetti, Dmytro
+    Bielik, pangwalla
+
+    This file is part of Gadgetbridge.
+
+    Gadgetbridge is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Gadgetbridge is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+package nodomain.freeyourgadget.gadgetbridge.service.devices.huami.amazfitgts2;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
+import nodomain.freeyourgadget.gadgetbridge.model.DeviceType;
+import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.HuamiFirmwareInfo;
+import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.HuamiFirmwareType;
+import nodomain.freeyourgadget.gadgetbridge.util.ArrayUtils;
+
+public class AmazfitGTS2MiniFirmwareInfo extends HuamiFirmwareInfo {
+    private static final int FW_OFFSET = 3;
+
+    private static final byte[] FW_HEADER = new byte[]{
+            0x20, (byte) 0x99, 0x12, 0x01, 0x08 // completely nonsense probably
+    };
+
+    private static final byte[] GPS_ALMANAC_HEADER = new byte[]{ // probably wrong
+            (byte) 0xa0, (byte) 0x80, 0x08, 0x00, (byte) 0x8b, 0x07
+    };
+
+    private static final byte[] GPS_CEP_HEADER = new byte[]{ // probably wrong
+            0x2a, 0x12, (byte) 0xa0, 0x02
+    };
+
+    // gps detection is totally bogus, just the first 16 bytes
+    private static final byte[][] GPS_HEADERS = {
+            new byte[]{
+                    0x73, 0x75, 0x68, (byte) 0xd0, 0x70, 0x73, (byte) 0xbb, 0x5a,
+                    0x3e, (byte) 0xc3, (byte) 0xd3, 0x09, (byte) 0x9e, 0x1d, (byte) 0xd3, (byte) 0xc9
+            }
+    };
+    private static Map<Integer, String> crcToVersion = new HashMap<>();
+
+    static {
+        // firmware
+
+        // Latin Firmware
+
+        // resources
+
+        // font
+
+        // gps
+        crcToVersion.put(62532, "18344,eb2f43f,126");
+    }
+
+    public AmazfitGTS2MiniFirmwareInfo(byte[] bytes) {
+        super(bytes);
+    }
+
+    @Override
+    protected HuamiFirmwareType determineFirmwareType(byte[] bytes) {
+        if (ArrayUtils.equals(bytes, NEWRES_HEADER, COMPRESSED_RES_HEADER_OFFSET_NEW)) {
+            return HuamiFirmwareType.RES_COMPRESSED;
+        }
+        if (ArrayUtils.equals(bytes, FW_HEADER, FW_OFFSET)) {
+            if (searchString32BitAligned(bytes, "Amazfit GTS 2 Mini")) {
+                return HuamiFirmwareType.FIRMWARE;
+            }
+            return HuamiFirmwareType.INVALID;
+        }
+        if (ArrayUtils.startsWith(bytes, WATCHFACE_HEADER) || ArrayUtils.equals(bytes, WATCHFACE_HEADER, COMPRESSED_RES_HEADER_OFFSET_NEW) || ArrayUtils.equals(bytes, WATCHFACE_HEADER, COMPRESSED_RES_HEADER_OFFSET)) {
+            return HuamiFirmwareType.WATCHFACE;
+        }
+        if (ArrayUtils.startsWith(bytes, NEWFT_HEADER)) {
+            if (bytes[10] == 0x01) {
+                return HuamiFirmwareType.FONT;
+            } else if (bytes[10] == 0x02) {
+                return HuamiFirmwareType.FONT_LATIN;
+            }
+        }
+
+        if (ArrayUtils.startsWith(bytes, GPS_ALMANAC_HEADER)) {
+            return HuamiFirmwareType.GPS_ALMANAC;
+        }
+        if (ArrayUtils.startsWith(bytes, GPS_CEP_HEADER)) {
+            return HuamiFirmwareType.GPS_CEP;
+        }
+
+        for (byte[] gpsHeader : GPS_HEADERS) {
+            if (ArrayUtils.startsWith(bytes, gpsHeader)) {
+                return HuamiFirmwareType.GPS;
+            }
+        }
+
+        return HuamiFirmwareType.INVALID;
+    }
+
+    @Override
+    public boolean isGenerallyCompatibleWith(GBDevice device) {
+        return isHeaderValid() && device.getType() == DeviceType.AMAZFITGTS2_MINI;
+    }
+
+    @Override
+    protected Map<Integer, String> getCrcMap() {
+        return crcToVersion;
+    }
+}

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huami/amazfitgts2/AmazfitGTS2MiniSupport.java

@@ -0,0 +1,34 @@
+/*  Copyright (C) 2017-2021 Andreas Shimokawa, Carsten Pfeiffer, Dmytro
+    Bielik, pangwalla
+
+    This file is part of Gadgetbridge.
+
+    Gadgetbridge is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Gadgetbridge is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+package nodomain.freeyourgadget.gadgetbridge.service.devices.huami.amazfitgts2;
+
+import android.content.Context;
+import android.net.Uri;
+
+import java.io.IOException;
+
+import nodomain.freeyourgadget.gadgetbridge.devices.huami.HuamiFWHelper;
+import nodomain.freeyourgadget.gadgetbridge.devices.huami.amazfitgts2.AmazfitGTS2MiniFWHelper;
+
+public class AmazfitGTS2MiniSupport extends AmazfitGTS2Support {
+
+    @Override
+    public HuamiFWHelper createFWHelper(Uri uri, Context context) throws IOException {
+        return new AmazfitGTS2MiniFWHelper(uri, context);
+    }
+}

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/DeviceHelper.java

@@ -53,6 +53,7 @@ import nodomain.freeyourgadget.gadgetbridge.devices.hplus.MakibesF68Coordinator;
 import nodomain.freeyourgadget.gadgetbridge.devices.hplus.Q8Coordinator;
 import nodomain.freeyourgadget.gadgetbridge.devices.hplus.SG2Coordinator;
 import nodomain.freeyourgadget.gadgetbridge.devices.huami.amazfitband5.AmazfitBand5Coordinator;
+import nodomain.freeyourgadget.gadgetbridge.devices.huami.amazfitgts2.AmazfitGTS2MiniCoordinator;
 import nodomain.freeyourgadget.gadgetbridge.devices.huami.amazfitneo.AmazfitNeoCoordinator;
 import nodomain.freeyourgadget.gadgetbridge.devices.huami.amazfitbip.AmazfitBipCoordinator;
 import nodomain.freeyourgadget.gadgetbridge.devices.huami.amazfitbip.AmazfitBipLiteCoordinator;
@@ -237,6 +238,7 @@ public class DeviceHelper {
         result.add(new AmazfitTRexCoordinator());
         result.add(new AmazfitGTSCoordinator());
         result.add(new AmazfitGTS2Coordinator());
+        result.add(new AmazfitGTS2MiniCoordinator());
         result.add(new AmazfitVergeLCoordinator());
         result.add(new AmazfitBipSCoordinator());
         result.add(new AmazfitBipUCoordinator());

app/src/main/res/values/strings.xml

@@ -805,6 +805,7 @@
     <string name="devicetype_amazfit_bipupro">Amazfit Bip U Pro</string>
     <string name="devicetype_amazfit_gtr2">Amazfit GTR 2</string>
     <string name="devicetype_amazfit_gts2">Amazfit GTS 2</string>
+    <string name="devicetype_amazfit_gts2_mini">Amazfit GTS 2 Mini</string>
     <string name="devicetype_vibratissimo">Vibratissimo</string>
     <string name="devicetype_liveview">LiveView</string>
     <string name="devicetype_hplus">HPlus</string>