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Use switch statement for DFU OTA message sequence instead of if else.

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This commit is contained in:
Michael Dietz
2016-02-18 13:25:09 +01:00
parent dfb7adedce
commit b871bbae08
1 changed files with 85 additions and 76 deletions
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161
dist/dfu.js vendored
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@@ -321,86 +321,95 @@
log(err); log(err);
return reject(err); return reject(err);
} }
switch(req_opcode) {
case OPCODE.START_DFU:
log('write init packet');
if(majorVersion >= 6) { // init packet is not used in SDK v6 (so not used in mbed).
break;
}
controlChar.writeValue(new Uint8Array([2,0]))
.then(() => {
return packetChar.writeValue(generateInitPacket());
})
.then(() => {
return controlChar.writeValue(new Uint8Array([2,1]));
})
.catch(error => {
error = "error writing init: " + error;
log(error);
reject(error);
});
break;
case OPCODE.INITIALIZE_DFU_PARAMETERS:
log('send packet count');
if (req_opcode === OPCODE.START_DFU && majorVersion > 6) { var buffer = new ArrayBuffer(3);
log('write init packet'); view = new DataView(buffer);
view.setUint8(0, 8);
view.setUint16(1, interval, LITTLE_ENDIAN);
controlChar.writeValue(view)
.then(() => {
log("sent packet count: " + interval);
return controlChar.writeValue(new Uint8Array([3]));
})
.then(() => {
log("sent receive");
return writePacket(packetChar, arrayBuffer, 0);
})
.catch(error => {
error = "error sending packet count: " + error;
log(error);
reject(error);
});
break;
case OPCODE.RECEIVE_FIRMWARE_IMAGE:
log('check length');
controlChar.writeValue(new Uint8Array([2,0])) controlChar.writeValue(new Uint8Array([7]))
.then(() => { .catch(error => {
return packetChar.writeValue(generateInitPacket()); error = "error checking length: " + error;
}) log(error);
.then(() => { reject(error);
return controlChar.writeValue(new Uint8Array([2,1])); });
}) break;
.catch(error => { case OPCODE.REPORT_RECEIVED_IMAGE_SIZE:
error = "error writing init: " + error; var byteCount = view.getUint32(3, LITTLE_ENDIAN);
log(error); log('length: ' + byteCount);
reject(error); log('validate...');
});
controlChar.writeValue(new Uint8Array([4]))
} else if (req_opcode === OPCODE.START_DFU || req_opcode === OPCODE.INITIALIZE_DFU_PARAMETERS) { .catch(error => {
log('complete, send packet count'); error = "error validating: " + error;
log(error);
var buffer = new ArrayBuffer(3); reject(error);
view = new DataView(buffer); });
view.setUint8(0, 8); break;
view.setUint16(1, interval, LITTLE_ENDIAN); case OPCODE.VALIDATE_FIRMWARE:
log('complete, reset...');
controlChar.writeValue(view)
.then(() => {
log("sent packet count: " + interval);
return controlChar.writeValue(new Uint8Array([3]));
})
.then(() => {
log("sent receive");
return writePacket(packetChar, arrayBuffer, 0);
})
.catch(error => {
error = "error sending packet count: " + error;
log(error);
reject(error);
});
} else if (req_opcode === OPCODE.RECEIVE_FIRMWARE_IMAGE) {
log('complete, check length');
controlChar.writeValue(new Uint8Array([7]))
.catch(error => {
error = "error checking length: " + error;
log(error);
reject(error);
});
} else if (req_opcode === OPCODE.REPORT_RECEIVED_IMAGE_SIZE) {
var byteCount = view.getUint32(3, LITTLE_ENDIAN);
log('length: ' + byteCount);
log('complete, validate...');
controlChar.writeValue(new Uint8Array([4]))
.catch(error => {
error = "error validating: " + error;
log(error);
reject(error);
});
} else if (req_opcode === OPCODE.VALIDATE_FIRMWARE) {
log('complete, reset...');
/* /*
// Disconnect event currently not implemented // Disconnect event currently not implemented
controlChar.service.device.addEventListener("gattserverdisconnected", () => { controlChar.service.device.addEventListener("gattserverdisconnected", () => {
resolve(); resolve();
}); });
*/ */
controlChar.writeValue(new Uint8Array([5])) controlChar.writeValue(new Uint8Array([5]))
.then(() => { .then(() => {
log('image activated and dfu target reset'); log('image activated and dfu target reset');
resolve(); // TODO: Resolve in disconnect event handler when implemented in Web Bluetooth API. resolve(); // TODO: Resolve in disconnect event handler when implemented in Web Bluetooth API.
}) })
.catch(error => { .catch(error => {
error = "error resetting: " + error; error = "error resetting: " + error;
log(error); log(error);
reject(error); reject(error);
}); });
break;
default:
log('unexpected req opCode - ERROR');
break;
} }
} else if (opCode === OPCODE.PACKET_RECEIPT_NOTIFICATION) { } else if (opCode === OPCODE.PACKET_RECEIPT_NOTIFICATION) {