109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
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/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2015.
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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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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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