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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/CommandLine.h>
#if ARCH(I386) || ARCH(X86_64)
# include <Kernel/Arch/x86/common/PCSpeaker.h>
#endif
#include <Kernel/Process.h>
namespace Kernel {
ErrorOr<FlatPtr> Process::sys$beep()
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
if (!kernel_command_line().is_pc_speaker_enabled())
return ENODEV;
#if ARCH(I386) || ARCH(X86_64)
PCSpeaker::tone_on(440);
auto result = Thread::current()->sleep(Time::from_nanoseconds(200'000'000));
PCSpeaker::tone_off();
if (result.was_interrupted())
return EINTR;
return 0;
#else
return ENOTIMPL;
#endif
}
}
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