bleWriteModeRules.ts 1.62 KB
/**
 * 佳博 GP-D320FX 等 Nordic UART 数据口:实机必须 writeNoResponse 才能稳定长任务下发。
 * 安卓 GATT 常只声明 write,若按 GATT 走带响应写,可能首包或跑十几包后 10007 property not support。
 * 白名单 UUID 连接/打印时一律优先 writeNoResponse;首包仍 10007 时才允许试一次带响应写。
 * 已用 writeNoResponse 跑通后禁止切回带响应写。
 */

export function normalizeBleUuid (uuid: string): string {
  return String(uuid || '').replace(/-/g, '').toLowerCase()
}

/** serviceUuid + characteristicUuid(无横线小写) */
const FORCE_WRITE_NO_RESPONSE: Array<{ service: string; characteristic: string }> = [
  /** 佳博 GP-D320FX 等 Silicon Labs / 旧 Nordic UART */
  {
    service: '49535343fe7d4ae58fa99fafd205e455',
    characteristic: '49535343884143f4a8d4ecbe34729bb3',
  },
  /** 标准 Nordic UART (NUS) */
  {
    service: '6e400001b5a3f393e0a9e50e24dcca9e',
    characteristic: '6e400002b5a3f393e0a9e50e24dcca9e',
  },
]

const NORDIC_UART_SERVICE_IDS = new Set(
  FORCE_WRITE_NO_RESPONSE.map((p) => p.service),
)

export function blePairRequiresWriteNoResponse (
  serviceId: string,
  characteristicId: string,
): boolean {
  const s = normalizeBleUuid(serviceId)
  const c = normalizeBleUuid(characteristicId)
  return FORCE_WRITE_NO_RESPONSE.some((p) => p.service === s && p.characteristic === c)
}

/** 是否为本仓库维护的 Nordic UART 风格串口服务(需写前开 notify、分包间留间隔等) */
export function isNordicUartStyleBleService (serviceId: string): boolean {
  return NORDIC_UART_SERVICE_IDS.has(normalizeBleUuid(serviceId))
}