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Parse device information #10

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91 changes: 75 additions & 16 deletions common/cat-protocol.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,7 @@ export enum Command {
ApplyEnergy = 0xbe,
GetDeviceState = 0xa3,
GetDeviceInfo = 0xa8,
GetDeviceId = 0xbb,
UpdateDevice = 0xa9,
SetDpi = 0xa4,
Lattice = 0xa6,
Expand Down Expand Up @@ -96,18 +97,16 @@ export enum StateFlag {
}

export class CatPrinter {

pause = new Uint8Array([0x51, 0x78, 0xa3, 0x01, 0x01, 0x00, 0x10, 0x70, 0xff]);
resume = new Uint8Array([0x51, 0x78, 0xa3, 0x01, 0x01, 0x00, 0x00, 0x00, 0xff]);
mtu = 200;
buffer = new Uint8Array(this.mtu);
bufferSize = 0;
state: PrinterState;
deviceVersion = "";

constructor(
public model: string,
public write: (command: Uint8Array) => Promise<void>,
public dry_run?: boolean) {
public model: string,
public write: (command: Uint8Array) => Promise<void>,
public dry_run?: boolean) {
this.state = {
out_of_paper: 0,
cover: 0,
Expand All @@ -119,18 +118,72 @@ export class CatPrinter {
}

notify = (message: Uint8Array) => {
const state = message[6];
this.state = {
out_of_paper: state & StateFlag.out_of_paper,
cover: state & StateFlag.cover,
overheat: state & StateFlag.overheat,
low_power: state & StateFlag.low_power,
pause: state & StateFlag.pause,
busy: state & StateFlag.busy
};
if (message.length < 9 || message[0] !== 0x51 || message[1] !== 0x78 || message[3] !== CommandType.Response) {
console.error("Invalid message received", message);
return;
}
const command = message[2];
const payloadLength = message[4] | message[5] << 8;
if (message.length < 6 + payloadLength + 2) {
console.error("Invalid payload length", message);
return;
}
const crc = message[6 + payloadLength];
if (crc !== crc8(message.slice(6, 6 + payloadLength))) {
console.error("Invalid crc in received message", message);
return;
}

if (message.length > 6 + payloadLength + 2) {
console.log("Extra data after received message", message.slice(6 + payloadLength + 2));
}

if (command === Command.GetDeviceState) {
const state = message[6];
this.state = {
out_of_paper: state & StateFlag.out_of_paper,
cover: state & StateFlag.cover,
overheat: state & StateFlag.overheat,
low_power: state & StateFlag.low_power,
pause: state & StateFlag.pause,
busy: state & StateFlag.busy,
};
if (state !== 0)
console.log(`State (failure): ${JSON.stringify(this.state)}`);

if (payloadLength >= 3) {
let battery = message[8] - 35;
battery = battery < 0 ? 0 : battery > 6 ? 6 : battery;

console.log(`Battery: ${battery}`);
console.debug(`Label detection??: ${message[7]}`);
}
} else if (command === Command.GetDeviceInfo) {
if (payloadLength < 10) {
console.error("Payload length for a device info is too short", message);
}
const deviceType = "XW00" + message[6];
const deviceVersion = String.fromCharCode(...message.slice(9, 9 + 7 - 1)); // null at the end
console.log(`Device type: ${deviceType} Version: ${deviceVersion}`);
// following are unknown on bt-only devices, dummy values?
console.debug(`WifiState??: ${message[8]} WifiConnected??: ${message[7]}`);
} else if (command === Command.GetDeviceId) {
const devId = message.slice(6, 6 + 6).reduce((s, x) => s + x.toString(16).padStart(2, "0"), "");
console.log(`Device id: ${devId}`);
} else if (command === 0xae) { // line control
if (message[6] === 0x10)
console.warn("Received pause request");
} else {
console.error("Unknown message received", message);
return;
}
}

isNewModel() {
if (this.deviceVersion.includes('.')) {
const [major, minor] = this.deviceVersion.split('.').map(x => ~~x);
return (major >= 1 || (major == 1 && minor >= 1));
}
return this.model === 'GB03' || this.model.startsWith('MX');
}

Expand Down Expand Up @@ -190,6 +243,10 @@ export class CatPrinter {
return this.send(this.make(Command.GetDeviceInfo, bytes(0x00)));
}

getDeviceId() {
return this.send(this.make(Command.GetDeviceId, bytes(0x01)));
}

updateDevice() {
return this.send(this.make(Command.UpdateDevice, bytes(0x00)));
}
Expand Down Expand Up @@ -228,8 +285,10 @@ export class CatPrinter {
}

async prepare(speed: number, energy: number) {
await this.flush();
await this.getDeviceState();
await this.getDeviceInfo();
await this.getDeviceId();
await this.flush();
await this.prepareCamera();
await this.setDpi();
await this.setSpeed(speed);
Expand Down