3964698cf7
* feat: kboot package * feat: kboot package * fix: wait 1 sec after device is available * test: fix unit test * refactor: clean unused codes * doc: improve readme.md * doc: improve readme.md * test: fix unit test * chore: fix lint settings * style: fix linting issues
47 lines
1.2 KiB
TypeScript
47 lines
1.2 KiB
TypeScript
import { isNullOrUndefined } from 'util';
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import { pack } from 'byte-data';
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import { CommandOption } from '../../models';
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/**
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* Encode the USB Command.
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* @param option
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*/
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export const encodeCommandOption = (option: CommandOption): number[] => {
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const payload = [
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option.command,
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option.hasDataPhase ? 1 : 0,
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0, // Reserved. Should be 0
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option.params ? option.params.length / 4 >> 0 : 0 // number of parameters
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];
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if (option.params) {
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payload.push(...option.params);
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}
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const header = [
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1, // Communication channel
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0, // TODO: What is it?
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...pack(payload.length, { bits: 16 }) // payload length in 2 byte
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];
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const placeholders = new Array(32 - payload.length)
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.fill(0);
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return [...header, ...payload, ...placeholders];
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};
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export const validateCommandParams = (params: any[]): void => {
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if (isNullOrUndefined(params)) {
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return;
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}
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if (!Array.isArray(params)) {
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throw new Error('Command parameters must be an array!');
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}
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if (params.length > 28) {
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throw new Error('Maximum 7 (28 bytes) command parameters allowed!');
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}
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};
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