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Diffstat (limited to 'src/dev/ps2/keyboard.cc')
| -rw-r--r-- | src/dev/ps2/keyboard.cc | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/dev/ps2/keyboard.cc b/src/dev/ps2/keyboard.cc new file mode 100644 index 000000000..a942d3457 --- /dev/null +++ b/src/dev/ps2/keyboard.cc @@ -0,0 +1,155 @@ +/* + * 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 + */ + +#include "dev/ps2/keyboard.hh" + +#include "base/logging.hh" +#include "debug/PS2.hh" +#include "params/PS2Keyboard.hh" + +const uint8_t PS2Keyboard::ID[] = {0xab, 0x83}; + +PS2Keyboard::PS2Keyboard(const PS2KeyboardParams *p) + : PS2Device(p), + lastCommand(NoCommand) +{ +} + +void +PS2Keyboard::serialize(CheckpointOut &cp) const +{ + PS2Device::serialize(cp); + SERIALIZE_SCALAR(lastCommand); +} + +void +PS2Keyboard::unserialize(CheckpointIn &cp) +{ + PS2Device::unserialize(cp); + UNSERIALIZE_SCALAR(lastCommand); +} + +void +PS2Keyboard::recv(uint8_t data) +{ + if (lastCommand != NoCommand) { + switch (lastCommand) { + case LEDWrite: + DPRINTF(PS2, "Setting LEDs: " + "caps lock %s, num lock %s, scroll lock %s\n", + bits(data, 2) ? "on" : "off", + bits(data, 1) ? "on" : "off", + bits(data, 0) ? "on" : "off"); + sendAck(); + lastCommand = NoCommand; + break; + case TypematicInfo: + DPRINTF(PS2, "Setting typematic info to %#02x.\n", data); + sendAck(); + lastCommand = NoCommand; + break; + } + return; + } + + switch (data) { + case LEDWrite: + DPRINTF(PS2, "Got LED write command.\n"); + sendAck(); + lastCommand = LEDWrite; + break; + case DiagnosticEcho: + panic("Keyboard diagnostic echo unimplemented.\n"); + case AlternateScanCodes: + panic("Accessing alternate scan codes unimplemented.\n"); + case ReadID: + DPRINTF(PS2, "Got keyboard read ID command.\n"); + sendAck(); + send((uint8_t *)&ID, sizeof(ID)); + break; + case TypematicInfo: + DPRINTF(PS2, "Setting typematic info.\n"); + sendAck(); + lastCommand = TypematicInfo; + break; + case Enable: + DPRINTF(PS2, "Enabling the keyboard.\n"); + sendAck(); + break; + case Disable: + DPRINTF(PS2, "Disabling the keyboard.\n"); + sendAck(); + break; + case DefaultsAndDisable: + DPRINTF(PS2, "Disabling and resetting the keyboard.\n"); + sendAck(); + break; + case AllKeysToTypematic: + panic("Setting all keys to typemantic unimplemented.\n"); + case AllKeysToMakeRelease: + panic("Setting all keys to make/release unimplemented.\n"); + case AllKeysToMake: + panic("Setting all keys to make unimplemented.\n"); + case AllKeysToTypematicMakeRelease: + panic("Setting all keys to " + "typematic/make/release unimplemented.\n"); + case KeyToTypematic: + panic("Setting a key to typematic unimplemented.\n"); + case KeyToMakeRelease: + panic("Setting a key to make/release unimplemented.\n"); + case KeyToMakeOnly: + panic("Setting key to make only unimplemented.\n"); + case Resend: + panic("Keyboard resend unimplemented.\n"); + case Reset: + panic("Keyboard reset unimplemented.\n"); + default: + panic("Unknown keyboard command %#02x.\n", data); + } +} + +PS2Keyboard * +PS2KeyboardParams::create() +{ + return new PS2Keyboard(this); +} |