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Kernel: Reorganize Arch/x86 directory to Arch/x86_64 after i686 removal

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No functional change.
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Liav A 2022-10-04 13:46:11 +03:00 • committed by Andreas Kling
parent 5ff318cf3a
commit 91db482ad3
129 changed files with 482 additions and 1116 deletions
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25
Kernel/Arch/x86_64/PCSpeaker.cpp Normal file
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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Arch/x86_64/IO.h>
#include <Kernel/Arch/x86_64/PCSpeaker.h>
#include <Kernel/Arch/x86_64/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);
}