FreeNOS
Keyboard.h
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1 /*
2  * Copyright (C) 2009 Niek Linnenbank
3  *
4  * This program is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation, either version 3 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program. If not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #ifndef __SERVER_PS2_KEYBOARD_H
19 #define __SERVER_PS2_KEYBOARD_H
20 
21 #include <FreeNOS/System.h>
22 #include <Device.h>
23 #include <Macros.h>
24 #include <Types.h>
25 
35 #define PS2_PORT 0x60
36 
38 #define PS2_IRQ 1
39 
41 #define PS2_RELEASE 0x80
42 
46 class Keyboard : public Device
47 {
48  public:
49 
55  Keyboard(const u32 inode);
56 
63 
71  virtual FileSystem::Result interrupt(const Size vector);
72 
83  virtual FileSystem::Result read(IOBuffer & buffer,
84  Size & size,
85  const Size offset);
86 
87  private:
88 
92  static const char keymap[0x3a][2];
93 
100 
102  bool pending;
103 
106 };
107 
113 #endif /* __SERVER_PS2_KEYBOARD_H */
Keyboard::read
virtual FileSystem::Result read(IOBuffer &buffer, Size &size, const Size offset)
Read a character from the keyboard.
Definition: Keyboard.cpp:63
Device.h
Macros.h
Types.h
ARMIO
Input/Output operations specific to the ARM architecture.
Definition: ARMIO.h:39
Keyboard::m_io
Arch::IO m_io
Port I/O object.
Definition: Keyboard.h:105
Device
Abstract device class interface.
Definition: Device.h:35
Keyboard::pending
bool pending
Do we have a byte ready?
Definition: Keyboard.h:102
Keyboard::interrupt
virtual FileSystem::Result interrupt(const Size vector)
Executed when a key state has changed.
Definition: Keyboard.cpp:57
Keyboard::shiftState
u8 shiftState
State of the shift key.
Definition: Keyboard.h:99
Keyboard
PS2 Keyboard device driver.
Definition: Keyboard.h:46
IOBuffer
Abstract Input/Output buffer.
Definition: IOBuffer.h:37
u32
unsigned int u32
Unsigned 32-bit number.
Definition: Types.h:53
Size
unsigned int Size
Any sane size indicator cannot go negative.
Definition: Types.h:128
Keyboard::keymap
static const char keymap[0x3a][2]
Keyboard map table.
Definition: Keyboard.h:92
FileSystem::Result
Result
Result code for filesystem Actions.
Definition: FileSystem.h:52
u8
unsigned char u8
Unsigned 8-bit number.
Definition: Types.h:59
Keyboard::initialize
virtual FileSystem::Result initialize()
Initialize the device.
Definition: Keyboard.cpp:52
Keyboard::Keyboard
Keyboard(const u32 inode)
Constructor.
Definition: Keyboard.cpp:45