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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Boot/CommandLine.h>
#if ARCH(X86_64)
# include <Kernel/Arch/x86_64/PCSpeaker.h>
#endif
#include <Kernel/Tasks/Process.h>
namespace Kernel {
ErrorOr<FlatPtr> Process::sys$beep(int tone)
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
if (!kernel_command_line().is_pc_speaker_enabled())
return ENODEV;
if (tone < 20 || tone > 20000)
return EINVAL;
#if ARCH(X86_64)
PCSpeaker::tone_on(tone);
auto result = Thread::current()->sleep(Duration::from_nanoseconds(200'000'000));
PCSpeaker::tone_off();
if (result.was_interrupted())
return EINTR;
return 0;
#else
return ENOTIMPL;
#endif
}
}
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