use of nodomain.freeyourgadget.gadgetbridge.service.btle.actions.SetProgressAction in project Gadgetbridge by Freeyourgadget.
the class UpdateFirmwareOperation method sendFirmwareData.
/**
* Method that uploads a firmware (fwbytes) to the Mi Band.
* The firmware has to be split into chunks of 20 bytes each, and periodically a COMMAND_SYNC command has to be issued to the Mi Band.
* <p/>
* The Mi Band will send a notification after receiving this data to confirm if the firmware looks good to it.
*
* @param fwbytes
* @return whether the transfer succeeded or not. Only a BT layer exception will cause the transmission to fail.
* @see MiBandSupport#handleNotificationNotif
*/
private boolean sendFirmwareData(byte[] fwbytes) {
int len = fwbytes.length;
final int packetLength = 20;
int packets = len / packetLength;
BluetoothGattCharacteristic characteristicControlPoint = getCharacteristic(MiBandService.UUID_CHARACTERISTIC_CONTROL_POINT);
BluetoothGattCharacteristic characteristicFWData = getCharacteristic(MiBandService.UUID_CHARACTERISTIC_FIRMWARE_DATA);
try {
// going from 0 to len
int firmwareProgress = 0;
TransactionBuilder builder = performInitialized("send firmware packet");
if (prefs.getBoolean("mi_low_latency_fw_update", true)) {
getSupport().setLowLatency(builder);
}
for (int i = 0; i < packets; i++) {
byte[] fwChunk = Arrays.copyOfRange(fwbytes, i * packetLength, i * packetLength + packetLength);
builder.write(characteristicFWData, fwChunk);
firmwareProgress += packetLength;
int progressPercent = (int) ((((float) firmwareProgress) / len) * 100);
if ((i > 0) && (i % 50 == 0)) {
builder.write(characteristicControlPoint, new byte[] { MiBandService.COMMAND_SYNC });
builder.add(new SetProgressAction(getContext().getString(R.string.updatefirmwareoperation_update_in_progress), true, progressPercent, getContext()));
}
}
if (firmwareProgress < len) {
byte[] lastChunk = Arrays.copyOfRange(fwbytes, packets * packetLength, len);
builder.write(characteristicFWData, lastChunk);
firmwareProgress = len;
}
builder.write(characteristicControlPoint, new byte[] { MiBandService.COMMAND_SYNC });
builder.queue(getQueue());
} catch (IOException ex) {
LOG.error("Unable to send fw to MI", ex);
GB.updateInstallNotification(getContext().getString(R.string.updatefirmwareoperation_firmware_not_sent), false, 0, getContext());
return false;
}
return true;
}
use of nodomain.freeyourgadget.gadgetbridge.service.btle.actions.SetProgressAction in project Gadgetbridge by Freeyourgadget.
the class UpdateFirmwareOperation method sendFirmwareData.
/**
* Method that uploads a firmware (fwbytes) to the Mi Band.
* The firmware has to be split into chunks of 20 bytes each, and periodically a COMMAND_SYNC command has to be issued to the Mi Band.
* <p/>
* The Mi Band will send a notification after receiving this data to confirm if the firmware looks good to it.
*
* @param info
* @return whether the transfer succeeded or not. Only a BT layer exception will cause the transmission to fail.
* @see #handleNotificationNotif
*/
private boolean sendFirmwareData(Mi2FirmwareInfo info) {
byte[] fwbytes = info.getBytes();
int len = fwbytes.length;
final int packetLength = 20;
int packets = len / packetLength;
try {
// going from 0 to len
int firmwareProgress = 0;
TransactionBuilder builder = performInitialized("send firmware packet");
if (prefs.getBoolean("mi_low_latency_fw_update", true)) {
getSupport().setLowLatency(builder);
}
builder.write(fwCControlChar, new byte[] { MiBand2Service.COMMAND_FIRMWARE_START_DATA });
for (int i = 0; i < packets; i++) {
byte[] fwChunk = Arrays.copyOfRange(fwbytes, i * packetLength, i * packetLength + packetLength);
builder.write(fwCDataChar, fwChunk);
firmwareProgress += packetLength;
int progressPercent = (int) ((((float) firmwareProgress) / len) * 100);
if ((i > 0) && (i % 100 == 0)) {
builder.write(fwCControlChar, new byte[] { MiBand2Service.COMMAND_FIRMWARE_UPDATE_SYNC });
builder.add(new SetProgressAction(getContext().getString(R.string.updatefirmwareoperation_update_in_progress), true, progressPercent, getContext()));
}
}
if (firmwareProgress < len) {
byte[] lastChunk = Arrays.copyOfRange(fwbytes, packets * packetLength, len);
builder.write(fwCDataChar, lastChunk);
firmwareProgress = len;
}
builder.write(fwCControlChar, new byte[] { MiBand2Service.COMMAND_FIRMWARE_UPDATE_SYNC });
builder.queue(getQueue());
} catch (IOException ex) {
LOG.error("Unable to send fw to MI 2", ex);
GB.updateInstallNotification(getContext().getString(R.string.updatefirmwareoperation_firmware_not_sent), false, 0, getContext());
return false;
}
return true;
}
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