57 lines
2.3 KiB
C
57 lines
2.3 KiB
C
//----------------------------------------------------------------------------//
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// GNU GPL OS/K //
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// //
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// Desc: Basic Read Only Keyboard Driver //
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// //
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// //
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// Copyright © 2018-2019 The OS/K Team //
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// //
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// This file is part of OS/K. //
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// //
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// OS/K is free software: you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 3 of the License, or //
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// any later version. //
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// //
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// OS/K is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY//without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with OS/K. If not, see <https://www.gnu.org/licenses/>. //
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//----------------------------------------------------------------------------//
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#include <kernel/base.h>
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#include <kernel/iomisc.h>
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extern void KeybIsr(void);
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extern void IdtRegisterIrq(void (*isr)(void), uchar irq, uchar flags);
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extern void SendEOItoPIC(void);
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void IoSetupKeyb(void)
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{
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IdtRegisterIrq(KeybIsr, 0x21, 0x8E);
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}
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uchar KeybHandler(void)
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{
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char status;
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char code = 0;
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// write EOI
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IoWriteByteOnPort(0x20, 0x20);
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status = IoReadByteFromPort(0x64);
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if (status & 0x01) {
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code = IoReadByteFromPort(0x60);
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if(code < 0) code = 0;
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}
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return code;
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}
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