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Make message sequence of DFU process more readable.

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This commit is contained in:
Michael Dietz
2016-02-17 16:01:30 +01:00
parent 98c7a75537
commit 8c9885770c
1 changed files with 24 additions and 9 deletions
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33
dist/dfu.js vendored
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@@ -71,6 +71,20 @@
softdevice: 0xFFFE,
crc: 0x0000
};
var OPCODE = {
RESERVED: 0,
START_DFU: 1,
INITIALIZE_DFU_PARAMETERS: 2,
RECEIVE_FIRMWARE_IMAGE: 3,
VALIDATE_FIRMWARE: 4,
ACTIVATE_IMAGE_AND_RESET: 5,
RESET_SYSTEM: 6,
REPORT_RECEIVED_IMAGE_SIZE: 7,
PACKET_RECEIPT_NOTIFICATION_REQUEST: 8,
RESPONSE_CODE: 16,
PACKET_RECEIPT_NOTIFICATION: 17
};
var loggers = [];
function addLogger(loggerFn) {
@@ -299,18 +313,19 @@
function handleControl(event) {
var data = event.target.value;
var view = new DataView(data);
var opCode = view.getUint8(0);
var req_opcode = view.getUint8(1);
var resp_code = view.getUint8(2);
if (opCode === 16) { // response
var resp_code = view.getUint8(2);
if (opCode === 16) { // Response Code.
if (resp_code !== 1) {
var error = "error from control: " + resp_code;
log(error);
return reject(error);
}
var req_opcode = view.getUint8(1);
if (req_opcode === 1 && majorVersion > 6) {
if (req_opcode === OPCODE.START_DFU && majorVersion > 6) {
log('write init packet');
controlChar.writeValue(new Uint8Array([2,0]))
@@ -326,7 +341,7 @@
reject(error);
});
} else if (req_opcode === 1 || req_opcode === 2) {
} else if (req_opcode === OPCODE.START_DFU || req_opcode === OPCODE.INITIALIZE_DFU_PARAMETERS) {
log('complete, send packet count');
var buffer = new ArrayBuffer(3);
@@ -349,7 +364,7 @@
reject(error);
});
} else if (req_opcode === 3) {
} else if (req_opcode === OPCODE.RECEIVE_FIRMWARE_IMAGE) {
log('complete, check length');
controlChar.writeValue(new Uint8Array([7]))
@@ -359,7 +374,7 @@
reject(error);
});
} else if (req_opcode === 7) {
} else if (req_opcode === OPCODE.REPORT_RECEIVED_IMAGE_SIZE) {
var byteCount = view.getUint32(3, LITTLE_ENDIAN);
log('length: ' + byteCount);
log('complete, validate...');
@@ -371,7 +386,7 @@
reject(error);
});
} else if (req_opcode === 4) {
} else if (req_opcode === OPCODE.VALIDATE_FIRMWARE) {
log('complete, reset...');
/*
// Disconnect event currently not implemented
@@ -394,7 +409,7 @@
});
}
} else if (opCode === 17) {
} else if (opCode === OPCODE.PACKET_RECEIPT_NOTIFICATION) { // Packet Receipt Notification.
var bytes = view.getUint32(1, LITTLE_ENDIAN);
log('transferred: ' + bytes);
writePacket(packetChar, arrayBuffer, 0);