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author | Andreas Sandberg <andreas.sandberg@arm.com> | 2017-07-11 16:26:24 +0100 |
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committer | Andreas Sandberg <andreas.sandberg@arm.com> | 2018-04-17 08:46:33 +0000 |
commit | 18f62ac208a3fc8d385e66c3b5ff22473229d1d7 (patch) | |
tree | d4a2cb0daa1d3735e59696bc5484162acbd62cb9 /src/dev/ps2/keyboard.hh | |
parent | 7c21795304e6ec79ed8c35873c4419a6342eb1e3 (diff) | |
download | gem5-18f62ac208a3fc8d385e66c3b5ff22473229d1d7.tar.xz |
ps2: Factor out PS/2 devices into their own subsystem
PS/2 devices are currently emulated both in the i8042 model and the
Arm KMI model. This is undesirable since it leads to code duplication.
This change introduces a common PS/2 device interface and factor out
the x86 keyboard and mouse model. A subsequent commit will implement
support for this interface in the Arm KMI model.
Change-Id: I440e83517fd9dce362fdc1676db477cc6eee5211
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/9762
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Diffstat (limited to 'src/dev/ps2/keyboard.hh')
-rw-r--r-- | src/dev/ps2/keyboard.hh | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/dev/ps2/keyboard.hh b/src/dev/ps2/keyboard.hh new file mode 100644 index 000000000..8943e7fcb --- /dev/null +++ b/src/dev/ps2/keyboard.hh @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2017-2018 ARM Limited + * All rights reserved + * + * The license below extends only to copyright in the software and shall + * not be construed as granting a license to any other intellectual + * property including but not limited to intellectual property relating + * to a hardware implementation of the functionality of the software + * licensed hereunder. You may use the software subject to the license + * terms below provided that you ensure that this notice is replicated + * unmodified and in its entirety in all distributions of the software, + * modified or unmodified, in source code or in binary form. + * + * Copyright (c) 2008 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Gabe Black + * Andreas Sandberg + */ + +#ifndef __DEV_PS2_KEYBOARD_HH__ +#define __DEV_PS2_KEYBOARD_HH__ + +#include "dev/ps2/device.hh" + +struct PS2KeyboardParams; + +class PS2Keyboard : public PS2Device +{ + protected: + static const uint8_t ID[]; + + enum Command + { + LEDWrite = 0xED, + DiagnosticEcho = 0xEE, + AlternateScanCodes = 0xF0, + ReadID = 0xF2, + TypematicInfo = 0xF3, + Enable = 0xF4, + Disable = 0xF5, + DefaultsAndDisable = 0xF6, + AllKeysToTypematic = 0xF7, + AllKeysToMakeRelease = 0xF8, + AllKeysToMake = 0xF9, + AllKeysToTypematicMakeRelease = 0xFA, + KeyToTypematic = 0xFB, + KeyToMakeRelease = 0xFC, + KeyToMakeOnly = 0xFD, + Resend = 0xFE, + Reset = 0xFF + }; + static const uint16_t NoCommand = (uint16_t)(-1); + + + uint16_t lastCommand; + + public: + PS2Keyboard(const PS2KeyboardParams *p); + + void serialize(CheckpointOut &cp) const override; + void unserialize(CheckpointIn &cp) override; + + protected: // PS2Device + void recv(uint8_t data) override; +}; + +#endif // __DEV_PS2_KEYBOARD_hH__ + |