131 lines
2.6 KiB
C++
131 lines
2.6 KiB
C++
/*
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* \brief Startup Wifi driver
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* \author Josef Soentgen
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* \date 2014-03-03
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*/
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/*
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* Copyright (C) 2014-2017 Genode Labs GmbH
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*
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* This file is distributed under the terms of the GNU General Public License
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* version 2.
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*/
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/* Genode includes */
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#include <libc/component.h>
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#include <base/attached_rom_dataspace.h>
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#include <base/log.h>
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#include <base/sleep.h>
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#include <os/reporter.h>
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#include <timer_session/connection.h>
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#include <util/xml_node.h>
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/* local includes */
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#include <util.h>
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#include <wpa.h>
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#include <frontend.h>
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static Wifi::Frontend *_wifi_frontend = nullptr;
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/**
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* Notify front end about command processing
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*
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* Called by the CTRL interface after wpa_supplicant has processed
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* the command.
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*/
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void wifi_block_for_processing(void)
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{
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if (!_wifi_frontend) {
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Genode::warning("frontend not available, dropping notification");
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return;
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}
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/*
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* Next time we block as long as the front end has not finished
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* handling our previous request
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*/
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_wifi_frontend->block_for_processing();
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/* XXX hack to trick poll() into returning faster */
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wpa_ctrl_set_fd();
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}
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void wifi_notify_cmd_result(void)
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{
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if (!_wifi_frontend) {
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Genode::warning("frontend not available, dropping notification");
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return;
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}
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Genode::Signal_transmitter(_wifi_frontend->result_sigh()).submit();
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}
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/**
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* Notify front end about triggered event
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*
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* Called by the CTRL interface whenever wpa_supplicant has triggered
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* a event.
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*/
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void wifi_notify_event(void)
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{
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if (!_wifi_frontend) {
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Genode::warning("frontend not available, dropping notification");
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return;
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}
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Genode::Signal_transmitter(_wifi_frontend->event_sigh()).submit();
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}
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/**
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* Return shared-memory message buffer
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*
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* It is used by the wpa_supplicant CTRL interface.
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*/
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void *wifi_get_buffer(void)
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{
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return _wifi_frontend ? &_wifi_frontend->msg_buffer() : nullptr;
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}
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/* exported by wifi.lib.so */
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extern void wifi_init(Genode::Env&, Genode::Lock&, bool, Genode::Signal_context_capability);
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struct Main
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{
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Genode::Env &env;
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Genode::Constructible<Wpa_thread> _wpa;
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Genode::Constructible<Wifi::Frontend> _frontend;
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Genode::Lock _wpa_startup_lock { Genode::Lock::LOCKED };
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Main(Genode::Env &env) : env(env)
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{
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_frontend.construct(env);
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_wifi_frontend = &*_frontend;
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_wpa.construct(env, _wpa_startup_lock);
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_wpa->start();
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/*
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* Forcefully disable 11n but for convenience the attribute is used the
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* other way araound.
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*/
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bool const disable_11n = !_frontend->use_11n();
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wifi_init(env, _wpa_startup_lock, disable_11n,
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_frontend->rfkill_sigh());
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}
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};
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void Libc::Component::construct(Libc::Env &env)
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{
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Libc::with_libc([&] () { static Main server(env); });
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}
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