81 lines
2.0 KiB
C++
81 lines
2.0 KiB
C++
/*
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* Copyright (c) 2011, 2012, 2014, 2015 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* kb/ps2.h
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* 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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#include <sortix/kernel/ps2.h>
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namespace Sortix {
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class PS2Keyboard : public Keyboard, public PS2Device
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{
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public:
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PS2Keyboard();
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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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virtual void PS2DeviceInitialize(void* send_ctx, bool (*send)(void*, uint8_t),
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uint8_t* id, size_t id_size);
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virtual void PS2DeviceOnByte(uint8_t byte);
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private:
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void OnKeyboardKey(int kbkey);
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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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mutable kthread_mutex_t kblock;
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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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void* send_ctx;
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bool (*send)(void*, uint8_t);
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enum
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{
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STATE_INIT = 0,
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STATE_RESET_LED,
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STATE_RESET_TYPEMATIC,
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STATE_ENABLE_SCAN,
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STATE_NORMAL,
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STATE_NORMAL_ESCAPED,
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} state;
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size_t tries;
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uint8_t leds;
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uint8_t id[2];
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size_t id_size;
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};
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} // namespace Sortix
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#endif
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