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Kernel: Add CommandLine option to disable or enable the PC speaker

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By default, we disable the PC speaker as it's quite annoying when using
the text mode console.
This commit is contained in:
Liav A 2022-01-22 12:29:55 +02:00 • committed by Linus Groh
commit 69f054616d
Notes: sideshowbarker 2024-07-17 20:24:57 +09:00
5 changed files with 19 additions and 0 deletions
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3
Kernel/Syscalls/beep.cpp
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@ -4,6 +4,7 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/CommandLine.h>
#include <Kernel/Devices/PCSpeaker.h>
#include <Kernel/Process.h>
@ -12,6 +13,8 @@ namespace Kernel {
ErrorOr<FlatPtr> Process::sys$beep()
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
if (!kernel_command_line().is_pc_speaker_enabled())
return ENODEV;
PCSpeaker::tone_on(440);
auto result = Thread::current()->sleep(Time::from_nanoseconds(200'000'000));
PCSpeaker::tone_off();