104 lines
2.4 KiB
C++
104 lines
2.4 KiB
C++
/*
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* Copyright (c) 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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* mouse/ps2.h
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* PS2 Mouse.
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*/
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#ifndef SORTIX_MOUSE_PS2_H
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#define SORTIX_MOUSE_PS2_H
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#include <stddef.h>
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#include <stdint.h>
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#include <sortix/kernel/inode.h>
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#include <sortix/kernel/kthread.h>
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#include <sortix/kernel/poll.h>
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#include <sortix/kernel/ps2.h>
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namespace Sortix {
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class PS2Mouse;
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class PS2MouseDevice;
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class PS2Mouse : public PS2Device
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{
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public:
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PS2Mouse();
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virtual ~PS2Mouse();
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virtual uint8_t 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(PS2MouseDevice* 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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bool PushByte(uint8_t byte);
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uint8_t PopByte();
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void NotifyOwner();
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private:
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mutable kthread_mutex_t mlock;
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uint8_t* 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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PS2MouseDevice* 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_ENABLE_SCAN,
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STATE_NORMAL,
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} state;
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size_t tries;
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uint8_t id[2];
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size_t id_size;
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};
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class PS2MouseDevice : public AbstractInode
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{
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public:
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PS2MouseDevice(dev_t dev, mode_t mode, uid_t owner, gid_t group,
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PS2Mouse* mouse);
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virtual ~PS2MouseDevice();
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public:
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virtual ssize_t read(ioctx_t* ctx, uint8_t* buf, size_t count);
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virtual int poll(ioctx_t* ctx, PollNode* node);
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public:
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virtual void OnMouseByte(PS2Mouse* keyboard, void* user);
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private:
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short PollEventStatus();
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private:
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PollChannel poll_channel;
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mutable kthread_mutex_t devlock;
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kthread_cond_t datacond;
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PS2Mouse* mouse;
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};
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} // namespace Sortix
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#endif
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