gecko/dom/wifi/libhardware_legacy.js

/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */

"use strict";

let libhardware_legacy = (function () {
  let library = ctypes.open("libhardware_legacy.so");
  let sdkVersion = libcutils.property_get("ro.build.version.sdk", "0");
  sdkVersion = parseInt(sdkVersion, 10);

  let iface = {
    // Load wifi driver, 0 on success, < 0 on failure.
    load_driver: library.declare("wifi_load_driver", ctypes.default_abi, ctypes.int),

    // Unload wifi driver, 0 on success, < 0 on failure.
    unload_driver: library.declare("wifi_unload_driver", ctypes.default_abi, ctypes.int),

    // Start supplicant, 0 on success, < 0 on failure.
    start_supplicant: library.declare("wifi_start_supplicant", ctypes.default_abi, ctypes.int),

    // Stop supplicant, 0 on success, < 0 on failure.
    stop_supplicant: library.declare("wifi_stop_supplicant", ctypes.default_abi, ctypes.int),

    // Open a connection to the supplicant, 0 on success, < 0 on failure.
    connect_to_supplicant: library.declare("wifi_connect_to_supplicant", ctypes.default_abi, ctypes.int),

    // Close connection to connection to the supplicant, 0 on success, < 0 on failure.
    close_supplicant_connection: library.declare("wifi_close_supplicant_connection", ctypes.default_abi, ctypes.void_t),

    // Block until a wifi event is returned, buf is the buffer, len is the max length of the buffer.
    // Return value is number of bytes in buffer, or 0 if no event (no connection for instance), and < 0 on failure.
    wait_for_event: library.declare("wifi_wait_for_event", ctypes.default_abi, ctypes.int, ctypes.char.ptr, ctypes.size_t),

    // Issue a command to the wifi driver. command is the command string, reply will hold the reply, reply_len contains
    // the maximum reply length initially and is updated with the actual length. 0 is returned on success, < 0 on failure.
    command: library.declare("wifi_command", ctypes.default_abi, ctypes.int, ctypes.char.ptr, ctypes.char.ptr, ctypes.size_t.ptr),
  };

  if (sdkVersion >= 16) {
    let c_start_supplicant =
      library.declare("wifi_start_supplicant",
                      ctypes.default_abi,
                      ctypes.int,
                      ctypes.int);
    iface.start_supplicant = function () {
      return c_start_supplicant(0);
    };

    let c_connect_to_supplicant =
      library.declare("wifi_connect_to_supplicant",
                      ctypes.default_abi,
                      ctypes.int,
                      ctypes.char.ptr);
    iface.connect_to_supplicant = function () {
      return c_connect_to_supplicant("wlan0");
    };

    let c_close_supplicant_connection =
      library.declare("wifi_close_supplicant_connection",
                      ctypes.default_abi,
                      ctypes.void_t,
                      ctypes.char.ptr);
    iface.close_supplicant_connection = function () {
      c_close_supplicant_connection("wlan0");
    };

    let c_wait_for_event =
      library.declare("wifi_wait_for_event",
                      ctypes.default_abi,
                      ctypes.int,
                      ctypes.char.ptr,
                      ctypes.char.ptr,
                      ctypes.size_t);
    iface.wait_for_event = function (cbuf, len) {
      return c_wait_for_event("wlan0", cbuf, len);
    };

    let c_command =
      library.declare("wifi_command",
                      ctypes.default_abi,
                      ctypes.int,
                      ctypes.char.ptr,
                      ctypes.char.ptr,
                      ctypes.char.ptr,
                      ctypes.size_t.ptr);
    iface.command = function (message, cbuf, len) {
      return c_command("wlan0", message, cbuf, len);
    };
  }

  return iface;
})();