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Keyboard in progress

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This commit is contained in:
Adrien Bourmault 2019-04-24 18:43:05 +02:00
parent 2d610e1ae6
commit 11792a58f8
2 changed files with 64 additions and 0 deletions
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24
kaleid/kernel/io/rtc.asm Normal file
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;=----------------------------------------------------------------------------=;
; GNU GPL OS/K ;
; ;
; Desc: Basic Read Only Keyboard Driver ;
; (x86_64 architecture only) ;
; ;
; ;
; Copyright © 2018-2019 The OS/K Team ;
; ;
; This file is part of OS/K. ;
; ;
; OS/K is free software: you can redistribute it and/or modify ;
; it under the terms of the GNU General Public License as published by ;
; the Free Software Foundation, either version 3 of the License, or ;
; (at your option) any later version. ;
; ;
; OS/K is distributed in the hope that it will be useful, ;
; but WITHOUT ANY WARRANTY; without even the implied warranty of ;
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;
; GNU General Public License for more details. ;
; ;
; You should have received a copy of the GNU General Public License ;
; along with OS/K. If not, see <https://www.gnu.org/licenses/>. ;
;=----------------------------------------------------------------------------=;

40
kaleid/kernel/io/rtc.c Normal file
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//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Desc: Interrupt related functions //
// //
// //
// Copyright © 2018-2019 The OS/K Team //
// //
// This file is part of OS/K. //
// //
// OS/K is free software: you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation, either version 3 of the License, or //
// any later version. //
// //
// OS/K is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY//without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with OS/K. If not, see <https://www.gnu.org/licenses/>. //
//----------------------------------------------------------------------------//
#include <kernel/base.h>
#include <kernel/iomisc.h>
void CpuEnableRtc(void)
{
ulong flags = KePauseIRQs();
// Setting up the register control
IoWriteByteOnPort(0x70, 0x8A); //selects status reg A and DISABLE NMI
IoWriteByteOnPort(0x71, 0x20);
//Enabling the IRQ 8
IoWriteByteOnPort(0x70, 0x8B);
char read = IoReadByteFromPort(0x71); // Because read causes reset
IoWriteByteOnPort(0x70, 0x8B);
IoWriteByteOnPort(0x71, read | 0x40);
KeRestoreIRQs(flags);
}