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sortix--sortix/kernel/kb/ps2.h
Jonas 'Sortie' Termansen 306709fc4a Add PS/2 controller driver.
2016-01-23 00:50:53 +01:00

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/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2014, 2015.
This file is part of Sortix.
Sortix 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.
Sortix 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
Sortix. If not, see <http://www.gnu.org/licenses/>.
kb/ps2.h
PS2 Keyboard.
*******************************************************************************/
#ifndef SORTIX_KB_PS2_H
#define SORTIX_KB_PS2_H
#include <stddef.h>
#include <stdint.h>
#include <sortix/kernel/kthread.h>
#include <sortix/kernel/keyboard.h>
#include <sortix/kernel/ps2.h>
namespace Sortix {
class PS2Keyboard : public Keyboard, public PS2Device
{
public:
PS2Keyboard();
virtual ~PS2Keyboard();
virtual int Read();
virtual size_t GetPending() const;
virtual bool HasPending() const;
virtual void SetOwner(KeyboardOwner* owner, void* user);
virtual void PS2DeviceInitialize(void* send_ctx, bool (*send)(void*, uint8_t),
uint8_t* id, size_t id_size);
virtual void PS2DeviceOnByte(uint8_t byte);
private:
void OnKeyboardKey(int kbkey);
void UpdateLEDs(int ledval);
bool PushKey(int key);
int PopKey();
void NotifyOwner();
private:
mutable kthread_mutex_t kblock;
int* queue;
size_t queuelength;
size_t queueoffset;
size_t queueused;
KeyboardOwner* owner;
void* ownerptr;
void* send_ctx;
bool (*send)(void*, uint8_t);
enum
{
STATE_INIT = 0,
STATE_RESET_LED,
STATE_RESET_TYPEMATIC,
STATE_ENABLE_SCAN,
STATE_NORMAL,
STATE_NORMAL_ESCAPED,
} state;
size_t tries;
uint8_t leds;
uint8_t id[2];
size_t id_size;
};
} // namespace Sortix
#endif