76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2014.
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This file is part of Sortix.
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Sortix is free software: you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation, either version 3 of the License, or (at your option) any later
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version.
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Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along with
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Sortix. If not, see <http://www.gnu.org/licenses/>.
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kb/ps2.h
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A driver for the PS2 Keyboard.
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*******************************************************************************/
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#ifndef SORTIX_KB_PS2_H
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#define SORTIX_KB_PS2_H
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#include <stddef.h>
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#include <stdint.h>
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#include <sortix/kernel/kthread.h>
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#include <sortix/kernel/keyboard.h>
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namespace Sortix {
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class PS2Keyboard : public Keyboard
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{
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public:
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PS2Keyboard(uint16_t iobase, uint8_t interrupt);
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virtual ~PS2Keyboard();
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virtual int Read();
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virtual size_t GetPending() const;
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virtual bool HasPending() const;
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virtual void SetOwner(KeyboardOwner* owner, void* user);
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public:
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void OnInterrupt(struct interrupt_context* intctx);
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void InterruptWork(uint8_t scancode);
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private:
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uint8_t PopScancode();
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int DecodeScancode(uint8_t scancode);
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void UpdateLEDs(int ledval);
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bool PushKey(int key);
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int PopKey();
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void NotifyOwner();
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private:
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int* queue;
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size_t queuelength;
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size_t queueoffset;
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size_t queueused;
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KeyboardOwner* owner;
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void* ownerptr;
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uint16_t iobase;
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uint8_t interrupt;
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bool scancodeescaped;
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uint8_t leds;
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mutable kthread_mutex_t kblock;
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};
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} // namespace Sortix
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#endif
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