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Kernel: Move PCSpeaker code to the x86-specific architecture directory

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The PCSpeaker code is specific to x86 platforms, thus it makes sense to
put in the Arch/x86 subdirectory.
This commit is contained in:
Liav A 2022-09-02 15:50:56 +03:00 • committed by Linus Groh
parent 1596ee241f
commit fdef8d0d37
5 changed files with 14 additions and 4 deletions
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25
Kernel/Arch/x86/common/PCSpeaker.cpp Normal file
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@ -0,0 +1,25 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Arch/x86/IO.h>
#include <Kernel/Arch/x86/common/PCSpeaker.h>
#include <Kernel/Time/PIT.h>
void PCSpeaker::tone_on(int frequency)
{
IO::out8(PIT_CTL, TIMER2_SELECT | WRITE_WORD | MODE_SQUARE_WAVE);
u16 timer_reload = BASE_FREQUENCY / frequency;
IO::out8(TIMER2_CTL, LSB(timer_reload));
IO::out8(TIMER2_CTL, MSB(timer_reload));
IO::out8(0x61, IO::in8(0x61) | 3);
}
void PCSpeaker::tone_off()
{
IO::out8(0x61, IO::in8(0x61) & ~3);
}