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https://github.com/RGBCube/serenity
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Kernel: Introduce a new HID subsystem
The end goal of this commit is to allow to boot on bare metal with no PS/2 device connected to the system. It turned out that the original code relied on the existence of the PS/2 keyboard, so VirtualConsole called it even though ACPI indicated the there's no i8042 controller on my real machine because I didn't plug any PS/2 device. The code is much more flexible, so adding HID support for other type of hardware (e.g. USB HID) could be much simpler. Briefly describing the change, we have a new singleton called HIDManagement, which is responsible to initialize the i8042 controller if exists, and to enumerate its devices. I also abstracted a bit things, so now every Human interface device is represented with the HIDDevice class. Then, there are 2 types of it - the MouseDevice and KeyboardDevice classes; both are responsible to handle the interface in the DevFS. PS2KeyboardDevice, PS2MouseDevice and VMWareMouseDevice classes are responsible for handling the hardware-specific interface they are assigned to. Therefore, they are inheriting from the IRQHandler class.
This commit is contained in:
parent
32dd9c554b
commit
8e3e3a71cb
23 changed files with 942 additions and 410 deletions
54
Kernel/Devices/HID/HIDDevice.h
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54
Kernel/Devices/HID/HIDDevice.h
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@ -0,0 +1,54 @@
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/*
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* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
|
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
|
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* this list of conditions and the following disclaimer in the documentation
|
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <Kernel/Devices/CharacterDevice.h>
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#include <Kernel/Random.h>
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namespace Kernel {
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class HIDDevice : public CharacterDevice {
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public:
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enum class Type {
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Unknown = 0,
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Keyboard,
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Mouse,
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};
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virtual Type instrument_type() const = 0;
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virtual void enable_interrupts() = 0;
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protected:
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HIDDevice(unsigned major, unsigned minor)
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: CharacterDevice(major, minor)
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{
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}
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EntropySource m_entropy_source;
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};
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}
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150
Kernel/Devices/HID/HIDManagement.cpp
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150
Kernel/Devices/HID/HIDManagement.cpp
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@ -0,0 +1,150 @@
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/*
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* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/Singleton.h>
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#include <Kernel/ACPI/Parser.h>
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#include <Kernel/Devices/HID/HIDManagement.h>
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#include <Kernel/Devices/HID/I8042Controller.h>
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namespace Kernel {
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static AK::Singleton<HIDManagement> s_the;
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// clang-format off
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static const Keyboard::CharacterMapData DEFAULT_CHARACTER_MAP =
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{
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.map = {
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0, '\033', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0x08,
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'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
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0, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', 0,
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'\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0, '*', 0,
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' ', 0, 0,
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//60 70 80
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '7', '8', '9', '-', '4', '5', '6', '+', '1', '2', '3', '0', '.', 0, 0, '\\', 0, 0, 0,
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},
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.shift_map = {
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0, '\033', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', 0x08,
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'\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n',
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0, 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '~', 0,
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'|', 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', 0, '*', 0,
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' ', 0, 0,
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//60 70 80
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '7', '8', '9', '-', '4', '5', '6', '+', '1', '2', '3', '0', '.', 0, 0, '|', 0, 0, 0,
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},
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.alt_map = {
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0, '\033', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0x08,
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'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
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0, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', 0,
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'\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0, '*', 0,
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' ', 0, 0,
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//60 70 80
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '7', '8', '9', '-', '4', '5', '6', '+', '1', '2', '3', '0', '.', 0, 0, '\\', 0, 0, 0,
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},
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.altgr_map = {
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0, '\033', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0x08,
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'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
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0, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', 0,
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'\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0, '*', 0,
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' ', 0, 0,
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//60 70 80
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '7', '8', '9', '-', '4', '5', '6', '+', '1', '2', '3', '0', '.', 0, 0, '\\', 0, 0, 0,
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},
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.shift_altgr_map = {
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0, '\033', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0x08,
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'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
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0, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', 0,
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'\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0, '*', 0,
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' ', 0, 0,
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//60 70 80
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '7', '8', '9', '-', '4', '5', '6', '+', '1', '2', '3', '0', '.', 0, 0, '\\', 0, 0, 0,
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},
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};
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// clang-format on
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KeyboardClient::~KeyboardClient()
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{
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}
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size_t HIDManagement::generate_minor_device_number_for_mouse()
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{
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// FIXME: Lock this to prevent race conditions with hot-plugging devices!
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return m_mouse_minor_number++;
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}
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size_t HIDManagement::generate_minor_device_number_for_keyboard()
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{
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// FIXME: Lock this to prevent race conditions with hot-plugging devices!
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return m_keyboard_minor_number++;
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}
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UNMAP_AFTER_INIT HIDManagement::HIDManagement()
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: m_character_map("en-us", DEFAULT_CHARACTER_MAP)
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{
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}
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void HIDManagement::set_maps(const Keyboard::CharacterMapData& character_map_data, const String& character_map_name)
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{
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m_character_map.set_character_map_data(character_map_data);
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m_character_map.set_character_map_name(character_map_name);
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dbgln("New Character map '{}' passed in by client.", character_map_name);
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}
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UNMAP_AFTER_INIT void HIDManagement::enumerate()
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{
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// FIXME: When we have USB HID support, we should ensure that we disable
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// emulation of the PS/2 controller if it was set by the BIOS.
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// If ACPI indicates we have an i8042 controller and the USB controller was
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// set to emulate PS/2, we should not initialize the PS/2 controller.
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if (!ACPI::Parser::the()->have_8042())
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return;
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m_i8042_controller = I8042Controller::initialize();
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m_i8042_controller->detect_devices();
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if (m_i8042_controller->mouse())
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m_hid_devices.append(m_i8042_controller->mouse().release_nonnull());
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if (m_i8042_controller->keyboard())
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m_hid_devices.append(m_i8042_controller->keyboard().release_nonnull());
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}
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UNMAP_AFTER_INIT void HIDManagement::initialize()
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{
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VERIFY(!s_the.is_initialized());
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s_the.ensure_instance();
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s_the->enumerate();
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}
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HIDManagement& HIDManagement::the()
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{
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return *s_the;
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}
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}
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84
Kernel/Devices/HID/HIDManagement.h
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84
Kernel/Devices/HID/HIDManagement.h
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@ -0,0 +1,84 @@
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/*
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* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
|
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
|
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/CircularQueue.h>
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#include <AK/NonnullRefPtrVector.h>
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#include <AK/RefPtr.h>
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#include <AK/Time.h>
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#include <AK/Types.h>
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#include <Kernel/API/KeyCode.h>
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#include <Kernel/API/MousePacket.h>
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#include <Kernel/KResult.h>
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#include <Kernel/SpinLock.h>
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#include <Kernel/UnixTypes.h>
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#include <LibKeyboard/CharacterMap.h>
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namespace Kernel {
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class HIDDevice;
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class I8042Controller;
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class MouseDevice;
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class KeyboardDevice;
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class KeyboardClient;
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class HIDManagement {
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friend class KeyboardDevice;
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friend class MouseDevice;
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AK_MAKE_ETERNAL;
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public:
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HIDManagement();
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static void initialize();
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static HIDManagement& the();
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void enumerate();
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const String& keymap_name() const { return m_character_map.character_map_name(); }
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const Keyboard::CharacterMapData& character_maps() const { return m_character_map.character_map_data(); }
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const Keyboard::CharacterMap& character_map() const { return m_character_map; }
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void set_client(KeyboardClient* client) { m_client = client; }
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void set_maps(const Keyboard::CharacterMapData& character_map, const String& character_map_name);
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private:
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size_t generate_minor_device_number_for_mouse();
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size_t generate_minor_device_number_for_keyboard();
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size_t m_mouse_minor_number { 0 };
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size_t m_keyboard_minor_number { 0 };
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Keyboard::CharacterMap m_character_map;
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KeyboardClient* m_client { nullptr };
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RefPtr<I8042Controller> m_i8042_controller;
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NonnullRefPtrVector<HIDDevice> m_hid_devices;
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};
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class KeyboardClient {
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public:
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virtual ~KeyboardClient();
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virtual void on_key_pressed(KeyEvent) = 0;
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};
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}
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284
Kernel/Devices/HID/I8042Controller.cpp
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284
Kernel/Devices/HID/I8042Controller.cpp
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/*
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* Copyright (c) 2020, The SerenityOS developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. 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.
|
||||
*
|
||||
* 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 HOLDER 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
|
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* 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
|
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
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*/
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#include <Kernel/Devices/HID/I8042Controller.h>
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#include <Kernel/Devices/HID/PS2KeyboardDevice.h>
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#include <Kernel/Devices/HID/PS2MouseDevice.h>
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#include <Kernel/Devices/HID/VMWareMouseDevice.h>
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#include <Kernel/IO.h>
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namespace Kernel {
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UNMAP_AFTER_INIT NonnullRefPtr<I8042Controller> I8042Controller::initialize()
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{
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return adopt(*new I8042Controller());
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}
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RefPtr<MouseDevice> I8042Controller::mouse() const
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{
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return m_mouse_device;
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}
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RefPtr<KeyboardDevice> I8042Controller::keyboard() const
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{
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return m_keyboard_device;
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}
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UNMAP_AFTER_INIT I8042Controller::I8042Controller()
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{
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}
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UNMAP_AFTER_INIT void I8042Controller::detect_devices()
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{
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u8 configuration;
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{
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ScopedSpinLock lock(m_lock);
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// Disable devices
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do_wait_then_write(I8042_STATUS, 0xad);
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do_wait_then_write(I8042_STATUS, 0xa7); // ignored if it doesn't exist
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// Drain buffers
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do_drain();
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do_wait_then_write(I8042_STATUS, 0x20);
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configuration = do_wait_then_read(I8042_BUFFER);
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do_wait_then_write(I8042_STATUS, 0x60);
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configuration &= ~3; // Disable IRQs for all
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do_wait_then_write(I8042_BUFFER, configuration);
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m_is_dual_channel = (configuration & (1 << 5)) != 0;
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dbgln("I8042: {} channel controller",
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m_is_dual_channel ? "Dual" : "Single");
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// Perform controller self-test
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do_wait_then_write(I8042_STATUS, 0xaa);
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if (do_wait_then_read(I8042_BUFFER) == 0x55) {
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// Restore configuration in case the controller reset
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do_wait_then_write(I8042_STATUS, 0x60);
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do_wait_then_write(I8042_BUFFER, configuration);
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} else {
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dbgln("I8042: Controller self test failed");
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}
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// Test ports and enable them if available
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do_wait_then_write(I8042_STATUS, 0xab); // test
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m_first_port_available = (do_wait_then_read(I8042_BUFFER) == 0);
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if (m_first_port_available) {
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do_wait_then_write(I8042_STATUS, 0xae); //enable
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configuration |= 1;
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configuration &= ~(1 << 4);
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} else {
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dbgln("I8042: Keyboard port not available");
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}
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if (m_is_dual_channel) {
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do_wait_then_write(I8042_STATUS, 0xa9); // test
|
||||
m_second_port_available = (do_wait_then_read(I8042_BUFFER) == 0);
|
||||
if (m_second_port_available) {
|
||||
do_wait_then_write(I8042_STATUS, 0xa8); // enable
|
||||
configuration |= 2;
|
||||
configuration &= ~(1 << 5);
|
||||
} else {
|
||||
dbgln("I8042: Mouse port not available");
|
||||
}
|
||||
}
|
||||
|
||||
// Enable IRQs for the ports that are usable
|
||||
if (m_first_port_available || m_second_port_available) {
|
||||
configuration &= ~0x30; // renable clocks
|
||||
do_wait_then_write(I8042_STATUS, 0x60);
|
||||
do_wait_then_write(I8042_BUFFER, configuration);
|
||||
}
|
||||
}
|
||||
|
||||
// Try to detect and initialize the devices
|
||||
if (m_first_port_available) {
|
||||
m_keyboard_device = PS2KeyboardDevice::try_to_initialize(*this);
|
||||
if (!m_keyboard_device) {
|
||||
dbgln("I8042: Keyboard device failed to initialize, disable");
|
||||
m_first_port_available = false;
|
||||
configuration &= ~1;
|
||||
configuration |= 1 << 4;
|
||||
ScopedSpinLock lock(m_lock);
|
||||
do_wait_then_write(I8042_STATUS, 0x60);
|
||||
do_wait_then_write(I8042_BUFFER, configuration);
|
||||
}
|
||||
}
|
||||
if (m_second_port_available) {
|
||||
m_mouse_device = VMWareMouseDevice::try_to_initialize(*this);
|
||||
if (!m_mouse_device) {
|
||||
m_mouse_device = PS2MouseDevice::try_to_initialize(*this);
|
||||
if (!m_mouse_device) {
|
||||
dbgln("I8042: Mouse device failed to initialize, disable");
|
||||
m_second_port_available = false;
|
||||
configuration |= 1 << 5;
|
||||
ScopedSpinLock lock(m_lock);
|
||||
do_wait_then_write(I8042_STATUS, 0x60);
|
||||
do_wait_then_write(I8042_BUFFER, configuration);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Enable IRQs after both are detected and initialized
|
||||
if (m_keyboard_device)
|
||||
m_keyboard_device->enable_interrupts();
|
||||
if (m_mouse_device)
|
||||
m_mouse_device->enable_interrupts();
|
||||
}
|
||||
|
||||
void I8042Controller::irq_process_input_buffer(HIDDevice::Type)
|
||||
{
|
||||
VERIFY(Processor::current().in_irq());
|
||||
|
||||
u8 status = IO::in8(I8042_STATUS);
|
||||
if (!(status & I8042_BUFFER_FULL))
|
||||
return;
|
||||
HIDDevice::Type data_for_device = ((status & I8042_WHICH_BUFFER) == I8042_MOUSE_BUFFER) ? HIDDevice::Type::Mouse : HIDDevice::Type::Keyboard;
|
||||
u8 byte = IO::in8(I8042_BUFFER);
|
||||
if (data_for_device == HIDDevice::Type::Mouse) {
|
||||
VERIFY(m_mouse_device);
|
||||
static_cast<PS2MouseDevice&>(*m_mouse_device).irq_handle_byte_read(byte);
|
||||
return;
|
||||
}
|
||||
if (data_for_device == HIDDevice::Type::Keyboard) {
|
||||
VERIFY(m_keyboard_device);
|
||||
static_cast<PS2KeyboardDevice&>(*m_keyboard_device).irq_handle_byte_read(byte);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void I8042Controller::do_drain()
|
||||
{
|
||||
for (;;) {
|
||||
u8 status = IO::in8(I8042_STATUS);
|
||||
if (!(status & I8042_BUFFER_FULL))
|
||||
return;
|
||||
IO::in8(I8042_BUFFER);
|
||||
}
|
||||
}
|
||||
|
||||
bool I8042Controller::do_reset_device(HIDDevice::Type device)
|
||||
{
|
||||
VERIFY(device != HIDDevice::Type::Unknown);
|
||||
VERIFY(m_lock.is_locked());
|
||||
|
||||
VERIFY(!Processor::current().in_irq());
|
||||
if (do_send_command(device, 0xff) != I8042_ACK)
|
||||
return false;
|
||||
// Wait until we get the self-test result
|
||||
return do_wait_then_read(I8042_BUFFER) == 0xaa;
|
||||
}
|
||||
|
||||
u8 I8042Controller::do_send_command(HIDDevice::Type device, u8 command)
|
||||
{
|
||||
VERIFY(device != HIDDevice::Type::Unknown);
|
||||
VERIFY(m_lock.is_locked());
|
||||
|
||||
VERIFY(!Processor::current().in_irq());
|
||||
|
||||
return do_write_to_device(device, command);
|
||||
}
|
||||
|
||||
u8 I8042Controller::do_send_command(HIDDevice::Type device, u8 command, u8 data)
|
||||
{
|
||||
VERIFY(device != HIDDevice::Type::Unknown);
|
||||
VERIFY(m_lock.is_locked());
|
||||
|
||||
VERIFY(!Processor::current().in_irq());
|
||||
|
||||
u8 response = do_write_to_device(device, command);
|
||||
if (response == I8042_ACK)
|
||||
response = do_write_to_device(device, data);
|
||||
return response;
|
||||
}
|
||||
|
||||
u8 I8042Controller::do_write_to_device(HIDDevice::Type device, u8 data)
|
||||
{
|
||||
VERIFY(device != HIDDevice::Type::Unknown);
|
||||
VERIFY(m_lock.is_locked());
|
||||
|
||||
VERIFY(!Processor::current().in_irq());
|
||||
|
||||
int attempts = 0;
|
||||
u8 response;
|
||||
do {
|
||||
if (device != HIDDevice::Type::Keyboard) {
|
||||
prepare_for_output();
|
||||
IO::out8(I8042_STATUS, 0xd4);
|
||||
}
|
||||
prepare_for_output();
|
||||
IO::out8(I8042_BUFFER, data);
|
||||
|
||||
response = do_wait_then_read(I8042_BUFFER);
|
||||
} while (response == I8042_RESEND && ++attempts < 3);
|
||||
if (attempts >= 3)
|
||||
dbgln("Failed to write byte to device, gave up");
|
||||
return response;
|
||||
}
|
||||
|
||||
u8 I8042Controller::do_read_from_device(HIDDevice::Type device)
|
||||
{
|
||||
VERIFY(device != HIDDevice::Type::Unknown);
|
||||
|
||||
prepare_for_input(device);
|
||||
return IO::in8(I8042_BUFFER);
|
||||
}
|
||||
|
||||
void I8042Controller::prepare_for_input(HIDDevice::Type device)
|
||||
{
|
||||
VERIFY(m_lock.is_locked());
|
||||
const u8 buffer_type = device == HIDDevice::Type::Keyboard ? I8042_KEYBOARD_BUFFER : I8042_MOUSE_BUFFER;
|
||||
for (;;) {
|
||||
u8 status = IO::in8(I8042_STATUS);
|
||||
if ((status & I8042_BUFFER_FULL) && (device == HIDDevice::Type::Unknown || ((status & I8042_WHICH_BUFFER) == buffer_type)))
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void I8042Controller::prepare_for_output()
|
||||
{
|
||||
VERIFY(m_lock.is_locked());
|
||||
for (;;) {
|
||||
if (!(IO::in8(I8042_STATUS) & 2))
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void I8042Controller::do_wait_then_write(u8 port, u8 data)
|
||||
{
|
||||
VERIFY(m_lock.is_locked());
|
||||
prepare_for_output();
|
||||
IO::out8(port, data);
|
||||
}
|
||||
|
||||
u8 I8042Controller::do_wait_then_read(u8 port)
|
||||
{
|
||||
VERIFY(m_lock.is_locked());
|
||||
prepare_for_input(HIDDevice::Type::Unknown);
|
||||
return IO::in8(port);
|
||||
}
|
||||
|
||||
}
|
136
Kernel/Devices/HID/I8042Controller.h
Normal file
136
Kernel/Devices/HID/I8042Controller.h
Normal file
|
@ -0,0 +1,136 @@
|
|||
/*
|
||||
* Copyright (c) 2020, The SerenityOS developers.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. 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.
|
||||
*
|
||||
* 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 HOLDER 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.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <AK/RefCounted.h>
|
||||
#include <Kernel/Devices/HID/KeyboardDevice.h>
|
||||
#include <Kernel/Devices/HID/MouseDevice.h>
|
||||
#include <Kernel/SpinLock.h>
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
#define I8042_BUFFER 0x60
|
||||
#define I8042_STATUS 0x64
|
||||
#define I8042_ACK 0xFA
|
||||
#define I8042_RESEND 0xFE
|
||||
#define I8042_BUFFER_FULL 0x01
|
||||
|
||||
#define I8042_WHICH_BUFFER 0x20
|
||||
|
||||
#define I8042_KEYBOARD_BUFFER 0x00
|
||||
#define I8042_MOUSE_BUFFER 0x20
|
||||
|
||||
class I8042Controller;
|
||||
class I8042Device {
|
||||
public:
|
||||
virtual ~I8042Device() = default;
|
||||
|
||||
virtual void irq_handle_byte_read(u8 byte) = 0;
|
||||
|
||||
protected:
|
||||
explicit I8042Device(const I8042Controller& ps2_controller)
|
||||
: m_i8042_controller(ps2_controller)
|
||||
{
|
||||
}
|
||||
|
||||
NonnullRefPtr<I8042Controller> m_i8042_controller;
|
||||
};
|
||||
|
||||
class PS2KeyboardDevice;
|
||||
class PS2MouseDevice;
|
||||
class I8042Controller : public RefCounted<I8042Controller> {
|
||||
friend class PS2KeyboardDevice;
|
||||
friend class PS2MouseDevice;
|
||||
|
||||
public:
|
||||
static NonnullRefPtr<I8042Controller> initialize();
|
||||
|
||||
void detect_devices();
|
||||
|
||||
bool reset_device(HIDDevice::Type device)
|
||||
{
|
||||
ScopedSpinLock lock(m_lock);
|
||||
return do_reset_device(device);
|
||||
}
|
||||
|
||||
u8 send_command(HIDDevice::Type device, u8 command)
|
||||
{
|
||||
ScopedSpinLock lock(m_lock);
|
||||
return do_send_command(device, command);
|
||||
}
|
||||
u8 send_command(HIDDevice::Type device, u8 command, u8 data)
|
||||
{
|
||||
ScopedSpinLock lock(m_lock);
|
||||
return do_send_command(device, command, data);
|
||||
}
|
||||
|
||||
u8 read_from_device(HIDDevice::Type device)
|
||||
{
|
||||
ScopedSpinLock lock(m_lock);
|
||||
return do_read_from_device(device);
|
||||
}
|
||||
|
||||
void wait_then_write(u8 port, u8 data)
|
||||
{
|
||||
ScopedSpinLock lock(m_lock);
|
||||
do_wait_then_write(port, data);
|
||||
}
|
||||
|
||||
u8 wait_then_read(u8 port)
|
||||
{
|
||||
ScopedSpinLock lock(m_lock);
|
||||
return do_wait_then_read(port);
|
||||
}
|
||||
|
||||
void prepare_for_output();
|
||||
void prepare_for_input(HIDDevice::Type);
|
||||
|
||||
void irq_process_input_buffer(HIDDevice::Type);
|
||||
|
||||
RefPtr<MouseDevice> mouse() const;
|
||||
RefPtr<KeyboardDevice> keyboard() const;
|
||||
|
||||
private:
|
||||
I8042Controller();
|
||||
void do_drain();
|
||||
bool do_reset_device(HIDDevice::Type);
|
||||
u8 do_send_command(HIDDevice::Type type, u8 data);
|
||||
u8 do_send_command(HIDDevice::Type device, u8 command, u8 data);
|
||||
u8 do_write_to_device(HIDDevice::Type device, u8 data);
|
||||
u8 do_read_from_device(HIDDevice::Type device);
|
||||
void do_wait_then_write(u8 port, u8 data);
|
||||
u8 do_wait_then_read(u8 port);
|
||||
|
||||
SpinLock<u8> m_lock;
|
||||
bool m_first_port_available { false };
|
||||
bool m_second_port_available { false };
|
||||
bool m_is_dual_channel { false };
|
||||
RefPtr<MouseDevice> m_mouse_device;
|
||||
RefPtr<KeyboardDevice> m_keyboard_device;
|
||||
};
|
||||
|
||||
}
|
334
Kernel/Devices/HID/KeyboardDevice.cpp
Normal file
334
Kernel/Devices/HID/KeyboardDevice.cpp
Normal file
|
@ -0,0 +1,334 @@
|
|||
/*
|
||||
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
||||
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. 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.
|
||||
*
|
||||
* 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 HOLDER 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.
|
||||
*/
|
||||
|
||||
#include <AK/Assertions.h>
|
||||
#include <AK/ByteBuffer.h>
|
||||
#include <AK/Singleton.h>
|
||||
#include <AK/StringView.h>
|
||||
#include <AK/Types.h>
|
||||
#include <Kernel/Arch/x86/CPU.h>
|
||||
#include <Kernel/Debug.h>
|
||||
#include <Kernel/Devices/HID/KeyboardDevice.h>
|
||||
#include <Kernel/IO.h>
|
||||
#include <Kernel/TTY/VirtualConsole.h>
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
#define IRQ_KEYBOARD 1
|
||||
|
||||
static const KeyCode unshifted_key_map[0x80] = {
|
||||
Key_Invalid,
|
||||
Key_Escape,
|
||||
Key_1,
|
||||
Key_2,
|
||||
Key_3,
|
||||
Key_4,
|
||||
Key_5,
|
||||
Key_6,
|
||||
Key_7,
|
||||
Key_8,
|
||||
Key_9,
|
||||
Key_0,
|
||||
Key_Minus,
|
||||
Key_Equal,
|
||||
Key_Backspace,
|
||||
Key_Tab, //15
|
||||
Key_Q,
|
||||
Key_W,
|
||||
Key_E,
|
||||
Key_R,
|
||||
Key_T,
|
||||
Key_Y,
|
||||
Key_U,
|
||||
Key_I,
|
||||
Key_O,
|
||||
Key_P,
|
||||
Key_LeftBracket,
|
||||
Key_RightBracket,
|
||||
Key_Return, // 28
|
||||
Key_Control, // 29
|
||||
Key_A,
|
||||
Key_S,
|
||||
Key_D,
|
||||
Key_F,
|
||||
Key_G,
|
||||
Key_H,
|
||||
Key_J,
|
||||
Key_K,
|
||||
Key_L,
|
||||
Key_Semicolon,
|
||||
Key_Apostrophe,
|
||||
Key_Backtick,
|
||||
Key_LeftShift, // 42
|
||||
Key_Backslash,
|
||||
Key_Z,
|
||||
Key_X,
|
||||
Key_C,
|
||||
Key_V,
|
||||
Key_B,
|
||||
Key_N,
|
||||
Key_M,
|
||||
Key_Comma,
|
||||
Key_Period,
|
||||
Key_Slash,
|
||||
Key_RightShift, // 54
|
||||
Key_Asterisk,
|
||||
Key_Alt, // 56
|
||||
Key_Space, // 57
|
||||
Key_CapsLock, // 58
|
||||
Key_F1,
|
||||
Key_F2,
|
||||
Key_F3,
|
||||
Key_F4,
|
||||
Key_F5,
|
||||
Key_F6,
|
||||
Key_F7,
|
||||
Key_F8,
|
||||
Key_F9,
|
||||
Key_F10,
|
||||
Key_NumLock,
|
||||
Key_Invalid, // 70
|
||||
Key_Home,
|
||||
Key_Up,
|
||||
Key_PageUp,
|
||||
Key_Minus,
|
||||
Key_Left,
|
||||
Key_Invalid,
|
||||
Key_Right, // 77
|
||||
Key_Plus,
|
||||
Key_End,
|
||||
Key_Down, // 80
|
||||
Key_PageDown,
|
||||
Key_Invalid,
|
||||
Key_Delete, // 83
|
||||
Key_Invalid,
|
||||
Key_Invalid,
|
||||
Key_Backslash,
|
||||
Key_F11,
|
||||
Key_F12,
|
||||
Key_Invalid,
|
||||
Key_Invalid,
|
||||
Key_Super,
|
||||
Key_Invalid,
|
||||
Key_Menu,
|
||||
};
|
||||
|
||||
static const KeyCode shifted_key_map[0x100] = {
|
||||
Key_Invalid,
|
||||
Key_Escape,
|
||||
Key_ExclamationPoint,
|
||||
Key_AtSign,
|
||||
Key_Hashtag,
|
||||
Key_Dollar,
|
||||
Key_Percent,
|
||||
Key_Circumflex,
|
||||
Key_Ampersand,
|
||||
Key_Asterisk,
|
||||
Key_LeftParen,
|
||||
Key_RightParen,
|
||||
Key_Underscore,
|
||||
Key_Plus,
|
||||
Key_Backspace,
|
||||
Key_Tab,
|
||||
Key_Q,
|
||||
Key_W,
|
||||
Key_E,
|
||||
Key_R,
|
||||
Key_T,
|
||||
Key_Y,
|
||||
Key_U,
|
||||
Key_I,
|
||||
Key_O,
|
||||
Key_P,
|
||||
Key_LeftBrace,
|
||||
Key_RightBrace,
|
||||
Key_Return,
|
||||
Key_Control,
|
||||
Key_A,
|
||||
Key_S,
|
||||
Key_D,
|
||||
Key_F,
|
||||
Key_G,
|
||||
Key_H,
|
||||
Key_J,
|
||||
Key_K,
|
||||
Key_L,
|
||||
Key_Colon,
|
||||
Key_DoubleQuote,
|
||||
Key_Tilde,
|
||||
Key_LeftShift, // 42
|
||||
Key_Pipe,
|
||||
Key_Z,
|
||||
Key_X,
|
||||
Key_C,
|
||||
Key_V,
|
||||
Key_B,
|
||||
Key_N,
|
||||
Key_M,
|
||||
Key_LessThan,
|
||||
Key_GreaterThan,
|
||||
Key_QuestionMark,
|
||||
Key_RightShift, // 54
|
||||
Key_Asterisk,
|
||||
Key_Alt,
|
||||
Key_Space, // 57
|
||||
Key_CapsLock, // 58
|
||||
Key_F1,
|
||||
Key_F2,
|
||||
Key_F3,
|
||||
Key_F4,
|
||||
Key_F5,
|
||||
Key_F6,
|
||||
Key_F7,
|
||||
Key_F8,
|
||||
Key_F9,
|
||||
Key_F10,
|
||||
Key_NumLock,
|
||||
Key_Invalid, // 70
|
||||
Key_Home,
|
||||
Key_Up,
|
||||
Key_PageUp,
|
||||
Key_Minus,
|
||||
Key_Left,
|
||||
Key_Invalid,
|
||||
Key_Right, // 77
|
||||
Key_Plus,
|
||||
Key_End,
|
||||
Key_Down, // 80
|
||||
Key_PageDown,
|
||||
Key_Invalid,
|
||||
Key_Delete, // 83
|
||||
Key_Invalid,
|
||||
Key_Invalid,
|
||||
Key_Pipe,
|
||||
Key_F11,
|
||||
Key_F12,
|
||||
Key_Invalid,
|
||||
Key_Invalid,
|
||||
Key_Super,
|
||||
Key_Invalid,
|
||||
Key_Menu,
|
||||
};
|
||||
|
||||
static const KeyCode numpad_key_map[13] = { Key_7, Key_8, Key_9, Key_Invalid, Key_4, Key_5, Key_6, Key_Invalid, Key_1, Key_2, Key_3, Key_0, Key_Comma };
|
||||
|
||||
void KeyboardDevice::key_state_changed(u8 scan_code, bool pressed)
|
||||
{
|
||||
KeyCode key = (m_modifiers & Mod_Shift) ? shifted_key_map[scan_code] : unshifted_key_map[scan_code];
|
||||
|
||||
if (key == Key_NumLock && pressed)
|
||||
m_num_lock_on = !m_num_lock_on;
|
||||
|
||||
if (m_num_lock_on && !m_has_e0_prefix) {
|
||||
if (scan_code >= 0x47 && scan_code <= 0x53) {
|
||||
u8 index = scan_code - 0x47;
|
||||
KeyCode newKey = numpad_key_map[index];
|
||||
|
||||
if (newKey != Key_Invalid) {
|
||||
key = newKey;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (key == Key_CapsLock && pressed)
|
||||
m_caps_lock_on = !m_caps_lock_on;
|
||||
|
||||
Event event;
|
||||
event.key = key;
|
||||
event.scancode = m_has_e0_prefix ? 0xe000 + scan_code : scan_code;
|
||||
event.flags = m_modifiers;
|
||||
event.e0_prefix = m_has_e0_prefix;
|
||||
event.caps_lock_on = m_caps_lock_on;
|
||||
event.code_point = HIDManagement::the().character_map().get_char(event);
|
||||
|
||||
if (pressed)
|
||||
event.flags |= Is_Press;
|
||||
if (HIDManagement::the().m_client)
|
||||
HIDManagement::the().m_client->on_key_pressed(event);
|
||||
|
||||
{
|
||||
ScopedSpinLock lock(m_queue_lock);
|
||||
m_queue.enqueue(event);
|
||||
}
|
||||
|
||||
m_has_e0_prefix = false;
|
||||
|
||||
evaluate_block_conditions();
|
||||
}
|
||||
|
||||
// FIXME: UNMAP_AFTER_INIT is fine for now, but for hot-pluggable devices
|
||||
// like USB keyboards, we need to remove this
|
||||
UNMAP_AFTER_INIT KeyboardDevice::KeyboardDevice()
|
||||
: HIDDevice(85, HIDManagement::the().generate_minor_device_number_for_keyboard())
|
||||
{
|
||||
}
|
||||
|
||||
// FIXME: UNMAP_AFTER_INIT is fine for now, but for hot-pluggable devices
|
||||
// like USB keyboards, we need to remove this
|
||||
UNMAP_AFTER_INIT KeyboardDevice::~KeyboardDevice()
|
||||
{
|
||||
}
|
||||
|
||||
bool KeyboardDevice::can_read(const FileDescription&, size_t) const
|
||||
{
|
||||
return !m_queue.is_empty();
|
||||
}
|
||||
|
||||
KResultOr<size_t> KeyboardDevice::read(FileDescription&, u64, UserOrKernelBuffer& buffer, size_t size)
|
||||
{
|
||||
size_t nread = 0;
|
||||
ScopedSpinLock lock(m_queue_lock);
|
||||
while (nread < size) {
|
||||
if (m_queue.is_empty())
|
||||
break;
|
||||
// Don't return partial data frames.
|
||||
if ((size - nread) < (ssize_t)sizeof(Event))
|
||||
break;
|
||||
auto event = m_queue.dequeue();
|
||||
|
||||
lock.unlock();
|
||||
|
||||
ssize_t n = buffer.write_buffered<sizeof(Event)>(sizeof(Event), [&](u8* data, size_t data_bytes) {
|
||||
memcpy(data, &event, sizeof(Event));
|
||||
return (ssize_t)data_bytes;
|
||||
});
|
||||
if (n < 0)
|
||||
return KResult((ErrnoCode)-n);
|
||||
VERIFY((size_t)n == sizeof(Event));
|
||||
nread += sizeof(Event);
|
||||
|
||||
lock.lock();
|
||||
}
|
||||
return nread;
|
||||
}
|
||||
|
||||
KResultOr<size_t> KeyboardDevice::write(FileDescription&, u64, const UserOrKernelBuffer&, size_t)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
}
|
84
Kernel/Devices/HID/KeyboardDevice.h
Normal file
84
Kernel/Devices/HID/KeyboardDevice.h
Normal file
|
@ -0,0 +1,84 @@
|
|||
/*
|
||||
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. 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.
|
||||
*
|
||||
* 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 HOLDER 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.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <AK/CircularQueue.h>
|
||||
#include <AK/DoublyLinkedList.h>
|
||||
#include <AK/Types.h>
|
||||
#include <Kernel/API/KeyCode.h>
|
||||
#include <Kernel/Devices/CharacterDevice.h>
|
||||
#include <Kernel/Devices/HID/HIDDevice.h>
|
||||
#include <Kernel/Interrupts/IRQHandler.h>
|
||||
#include <Kernel/Random.h>
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
class KeyboardDevice : public HIDDevice {
|
||||
public:
|
||||
using Event = KeyEvent;
|
||||
|
||||
virtual ~KeyboardDevice() override;
|
||||
|
||||
// ^CharacterDevice
|
||||
virtual KResultOr<size_t> read(FileDescription&, u64, UserOrKernelBuffer&, size_t) override;
|
||||
virtual bool can_read(const FileDescription&, size_t) const override;
|
||||
virtual KResultOr<size_t> write(FileDescription&, u64, const UserOrKernelBuffer&, size_t) override;
|
||||
virtual bool can_write(const FileDescription&, size_t) const override { return true; }
|
||||
|
||||
// ^HIDDevice
|
||||
virtual Type instrument_type() const { return Type::Keyboard; }
|
||||
|
||||
// ^Device
|
||||
virtual mode_t required_mode() const override { return 0440; }
|
||||
|
||||
//FIXME: It should be something like String::formatted("keyboard{}", minor())
|
||||
// instead of a fixed string like this
|
||||
virtual String device_name() const override { return "keyboard"; }
|
||||
|
||||
void update_modifier(u8 modifier, bool state)
|
||||
{
|
||||
if (state)
|
||||
m_modifiers |= modifier;
|
||||
else
|
||||
m_modifiers &= ~modifier;
|
||||
}
|
||||
|
||||
protected:
|
||||
KeyboardDevice();
|
||||
mutable SpinLock<u8> m_queue_lock;
|
||||
CircularQueue<Event, 16> m_queue;
|
||||
// ^CharacterDevice
|
||||
virtual const char* class_name() const override { return "KeyboardDevice"; }
|
||||
|
||||
u8 m_modifiers { 0 };
|
||||
bool m_caps_lock_on { false };
|
||||
bool m_num_lock_on { false };
|
||||
bool m_has_e0_prefix { false };
|
||||
|
||||
void key_state_changed(u8 raw, bool pressed);
|
||||
};
|
||||
}
|
77
Kernel/Devices/HID/MouseDevice.cpp
Normal file
77
Kernel/Devices/HID/MouseDevice.cpp
Normal file
|
@ -0,0 +1,77 @@
|
|||
/*
|
||||
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. 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.
|
||||
*
|
||||
* 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 HOLDER 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.
|
||||
*/
|
||||
|
||||
#include <Kernel/Devices/HID/HIDManagement.h>
|
||||
#include <Kernel/Devices/HID/MouseDevice.h>
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
MouseDevice::MouseDevice()
|
||||
: HIDDevice(10, HIDManagement::the().generate_minor_device_number_for_mouse())
|
||||
{
|
||||
}
|
||||
|
||||
MouseDevice::~MouseDevice()
|
||||
{
|
||||
}
|
||||
|
||||
bool MouseDevice::can_read(const FileDescription&, size_t) const
|
||||
{
|
||||
ScopedSpinLock lock(m_queue_lock);
|
||||
return !m_queue.is_empty();
|
||||
}
|
||||
|
||||
KResultOr<size_t> MouseDevice::read(FileDescription&, u64, UserOrKernelBuffer& buffer, size_t size)
|
||||
{
|
||||
VERIFY(size > 0);
|
||||
size_t nread = 0;
|
||||
size_t remaining_space_in_buffer = static_cast<size_t>(size) - nread;
|
||||
ScopedSpinLock lock(m_queue_lock);
|
||||
while (!m_queue.is_empty() && remaining_space_in_buffer) {
|
||||
auto packet = m_queue.dequeue();
|
||||
lock.unlock();
|
||||
|
||||
dbgln_if(MOUSE_DEBUG, "Mouse Read: Buttons {:x}", packet.buttons);
|
||||
dbgln_if(MOUSE_DEBUG, "PS2 Mouse: X {}, Y {}, Z {}, Relative {}", packet.x, packet.y, packet.z, packet.buttons);
|
||||
dbgln_if(MOUSE_DEBUG, "PS2 Mouse Read: Filter packets");
|
||||
|
||||
size_t bytes_read_from_packet = min(remaining_space_in_buffer, sizeof(MousePacket));
|
||||
if (!buffer.write(&packet, nread, bytes_read_from_packet))
|
||||
return EFAULT;
|
||||
nread += bytes_read_from_packet;
|
||||
remaining_space_in_buffer -= bytes_read_from_packet;
|
||||
|
||||
lock.lock();
|
||||
}
|
||||
return nread;
|
||||
}
|
||||
|
||||
KResultOr<size_t> MouseDevice::write(FileDescription&, u64, const UserOrKernelBuffer&, size_t)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
}
|
70
Kernel/Devices/HID/MouseDevice.h
Normal file
70
Kernel/Devices/HID/MouseDevice.h
Normal file
|
@ -0,0 +1,70 @@
|
|||
/*
|
||||
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. 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.
|
||||
*
|
||||
* 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 HOLDER 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.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <AK/CircularQueue.h>
|
||||
#include <AK/DoublyLinkedList.h>
|
||||
#include <AK/Types.h>
|
||||
#include <Kernel/API/KeyCode.h>
|
||||
#include <Kernel/API/MousePacket.h>
|
||||
#include <Kernel/Devices/CharacterDevice.h>
|
||||
#include <Kernel/Devices/HID/HIDDevice.h>
|
||||
#include <Kernel/Interrupts/IRQHandler.h>
|
||||
#include <Kernel/Random.h>
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
class MouseDevice : public HIDDevice {
|
||||
public:
|
||||
virtual ~MouseDevice() override;
|
||||
|
||||
// ^CharacterDevice
|
||||
virtual KResultOr<size_t> read(FileDescription&, u64, UserOrKernelBuffer&, size_t) override;
|
||||
virtual bool can_read(const FileDescription&, size_t) const override;
|
||||
virtual KResultOr<size_t> write(FileDescription&, u64, const UserOrKernelBuffer&, size_t) override;
|
||||
virtual bool can_write(const FileDescription&, size_t) const override { return true; }
|
||||
|
||||
// ^HIDDevice
|
||||
virtual Type instrument_type() const { return Type::Mouse; }
|
||||
|
||||
// ^Device
|
||||
virtual mode_t required_mode() const override { return 0440; }
|
||||
|
||||
//FIXME: It should be something like String::formatted("mouse{}", minor())
|
||||
// instead of a fixed string like this
|
||||
virtual String device_name() const override { return "mouse"; }
|
||||
|
||||
protected:
|
||||
MouseDevice();
|
||||
// ^CharacterDevice
|
||||
virtual const char* class_name() const override { return "MouseDevice"; }
|
||||
|
||||
mutable SpinLock<u8> m_queue_lock;
|
||||
CircularQueue<MousePacket, 100> m_queue;
|
||||
};
|
||||
|
||||
}
|
133
Kernel/Devices/HID/PS2KeyboardDevice.cpp
Normal file
133
Kernel/Devices/HID/PS2KeyboardDevice.cpp
Normal file
|
@ -0,0 +1,133 @@
|
|||
/*
|
||||
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
||||
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. 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.
|
||||
*
|
||||
* 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 HOLDER 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.
|
||||
*/
|
||||
|
||||
#include <AK/Assertions.h>
|
||||
#include <AK/ByteBuffer.h>
|
||||
#include <AK/Singleton.h>
|
||||
#include <AK/StringView.h>
|
||||
#include <AK/Types.h>
|
||||
#include <Kernel/Arch/x86/CPU.h>
|
||||
#include <Kernel/Debug.h>
|
||||
#include <Kernel/Devices/HID/HIDManagement.h>
|
||||
#include <Kernel/Devices/HID/PS2KeyboardDevice.h>
|
||||
#include <Kernel/IO.h>
|
||||
#include <Kernel/TTY/VirtualConsole.h>
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
#define IRQ_KEYBOARD 1
|
||||
|
||||
void PS2KeyboardDevice::irq_handle_byte_read(u8 byte)
|
||||
{
|
||||
u8 ch = byte & 0x7f;
|
||||
bool pressed = !(byte & 0x80);
|
||||
|
||||
m_entropy_source.add_random_event(byte);
|
||||
|
||||
if (byte == 0xe0) {
|
||||
m_has_e0_prefix = true;
|
||||
return;
|
||||
}
|
||||
|
||||
dbgln_if(KEYBOARD_DEBUG, "Keyboard::irq_handle_byte_read: {:#02x} {}", ch, (pressed ? "down" : "up"));
|
||||
switch (ch) {
|
||||
case 0x38:
|
||||
if (m_has_e0_prefix)
|
||||
update_modifier(Mod_AltGr, pressed);
|
||||
else
|
||||
update_modifier(Mod_Alt, pressed);
|
||||
break;
|
||||
case 0x1d:
|
||||
update_modifier(Mod_Ctrl, pressed);
|
||||
break;
|
||||
case 0x5b:
|
||||
update_modifier(Mod_Super, pressed);
|
||||
break;
|
||||
case 0x2a:
|
||||
case 0x36:
|
||||
update_modifier(Mod_Shift, pressed);
|
||||
break;
|
||||
}
|
||||
switch (ch) {
|
||||
case I8042_ACK:
|
||||
break;
|
||||
default:
|
||||
if (m_modifiers & Mod_Alt) {
|
||||
switch (ch) {
|
||||
case 0x02 ... 0x07: // 1 to 6
|
||||
VirtualConsole::switch_to(ch - 0x02);
|
||||
break;
|
||||
default:
|
||||
key_state_changed(ch, pressed);
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
key_state_changed(ch, pressed);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void PS2KeyboardDevice::handle_irq(const RegisterState&)
|
||||
{
|
||||
// The controller will read the data and call irq_handle_byte_read
|
||||
// for the appropriate device
|
||||
m_i8042_controller->irq_process_input_buffer(HIDDevice::Type::Keyboard);
|
||||
}
|
||||
|
||||
UNMAP_AFTER_INIT RefPtr<PS2KeyboardDevice> PS2KeyboardDevice::try_to_initialize(const I8042Controller& ps2_controller)
|
||||
{
|
||||
auto device = adopt(*new PS2KeyboardDevice(ps2_controller));
|
||||
if (device->initialize())
|
||||
return device;
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
UNMAP_AFTER_INIT bool PS2KeyboardDevice::initialize()
|
||||
{
|
||||
if (!m_i8042_controller->reset_device(HIDDevice::Type::Keyboard)) {
|
||||
dbgln("KeyboardDevice: I8042 controller failed to reset device");
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
// FIXME: UNMAP_AFTER_INIT might not be correct, because in practice PS/2 devices
|
||||
// are hot pluggable.
|
||||
UNMAP_AFTER_INIT PS2KeyboardDevice::PS2KeyboardDevice(const I8042Controller& ps2_controller)
|
||||
: IRQHandler(IRQ_KEYBOARD)
|
||||
, KeyboardDevice()
|
||||
, I8042Device(ps2_controller)
|
||||
{
|
||||
}
|
||||
|
||||
// FIXME: UNMAP_AFTER_INIT might not be correct, because in practice PS/2 devices
|
||||
// are hot pluggable.
|
||||
UNMAP_AFTER_INIT PS2KeyboardDevice::~PS2KeyboardDevice()
|
||||
{
|
||||
}
|
||||
|
||||
}
|
69
Kernel/Devices/HID/PS2KeyboardDevice.h
Normal file
69
Kernel/Devices/HID/PS2KeyboardDevice.h
Normal file
|
@ -0,0 +1,69 @@
|
|||
/*
|
||||
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. 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.
|
||||
*
|
||||
* 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 HOLDER 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.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <AK/CircularQueue.h>
|
||||
#include <AK/DoublyLinkedList.h>
|
||||
#include <AK/Types.h>
|
||||
#include <Kernel/API/KeyCode.h>
|
||||
#include <Kernel/Devices/HID/I8042Controller.h>
|
||||
#include <Kernel/Devices/HID/KeyboardDevice.h>
|
||||
#include <Kernel/Interrupts/IRQHandler.h>
|
||||
#include <Kernel/Random.h>
|
||||
#include <LibKeyboard/CharacterMap.h>
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
class PS2KeyboardDevice final : public IRQHandler
|
||||
, public KeyboardDevice
|
||||
, public I8042Device {
|
||||
AK_MAKE_ETERNAL
|
||||
public:
|
||||
static RefPtr<PS2KeyboardDevice> try_to_initialize(const I8042Controller&);
|
||||
virtual ~PS2KeyboardDevice() override;
|
||||
bool initialize();
|
||||
|
||||
virtual const char* purpose() const override { return class_name(); }
|
||||
|
||||
// ^I8042Device
|
||||
virtual void irq_handle_byte_read(u8 byte) override;
|
||||
virtual void enable_interrupts() override
|
||||
{
|
||||
enable_irq();
|
||||
}
|
||||
|
||||
private:
|
||||
explicit PS2KeyboardDevice(const I8042Controller&);
|
||||
|
||||
// ^IRQHandler
|
||||
virtual void handle_irq(const RegisterState&) override;
|
||||
|
||||
// ^CharacterDevice
|
||||
virtual const char* class_name() const override { return "KeyboardDevice"; }
|
||||
};
|
||||
|
||||
}
|
250
Kernel/Devices/HID/PS2MouseDevice.cpp
Normal file
250
Kernel/Devices/HID/PS2MouseDevice.cpp
Normal file
|
@ -0,0 +1,250 @@
|
|||
/*
|
||||
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. 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.
|
||||
*
|
||||
* 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 HOLDER 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.
|
||||
*/
|
||||
|
||||
#include <AK/Memory.h>
|
||||
#include <AK/Singleton.h>
|
||||
#include <Kernel/Debug.h>
|
||||
#include <Kernel/Devices/HID/PS2MouseDevice.h>
|
||||
#include <Kernel/Devices/VMWareBackdoor.h>
|
||||
#include <Kernel/IO.h>
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
#define IRQ_MOUSE 12
|
||||
|
||||
#define PS2MOUSE_SET_RESOLUTION 0xE8
|
||||
#define PS2MOUSE_STATUS_REQUEST 0xE9
|
||||
#define PS2MOUSE_REQUEST_SINGLE_PACKET 0xEB
|
||||
#define PS2MOUSE_GET_DEVICE_ID 0xF2
|
||||
#define PS2MOUSE_SET_SAMPLE_RATE 0xF3
|
||||
#define PS2MOUSE_ENABLE_PACKET_STREAMING 0xF4
|
||||
#define PS2MOUSE_DISABLE_PACKET_STREAMING 0xF5
|
||||
#define PS2MOUSE_SET_DEFAULTS 0xF6
|
||||
#define PS2MOUSE_RESEND 0xFE
|
||||
#define PS2MOUSE_RESET 0xFF
|
||||
|
||||
#define PS2MOUSE_INTELLIMOUSE_ID 0x03
|
||||
#define PS2MOUSE_INTELLIMOUSE_EXPLORER_ID 0x04
|
||||
|
||||
UNMAP_AFTER_INIT PS2MouseDevice::PS2MouseDevice(const I8042Controller& ps2_controller)
|
||||
: IRQHandler(IRQ_MOUSE)
|
||||
, MouseDevice()
|
||||
, I8042Device(ps2_controller)
|
||||
{
|
||||
}
|
||||
|
||||
UNMAP_AFTER_INIT PS2MouseDevice::~PS2MouseDevice()
|
||||
{
|
||||
}
|
||||
|
||||
void PS2MouseDevice::handle_irq(const RegisterState&)
|
||||
{
|
||||
// The controller will read the data and call irq_handle_byte_read
|
||||
// for the appropriate device
|
||||
m_i8042_controller->irq_process_input_buffer(instrument_type());
|
||||
}
|
||||
|
||||
void PS2MouseDevice::irq_handle_byte_read(u8 byte)
|
||||
{
|
||||
auto commit_packet = [&] {
|
||||
m_data_state = 0;
|
||||
dbgln_if(PS2MOUSE_DEBUG, "PS2Mouse: {}, {} {} {}",
|
||||
m_data.bytes[1],
|
||||
m_data.bytes[2],
|
||||
(m_data.bytes[0] & 1) ? "Left" : "",
|
||||
(m_data.bytes[0] & 2) ? "Right" : "");
|
||||
|
||||
m_entropy_source.add_random_event(m_data.dword);
|
||||
|
||||
{
|
||||
ScopedSpinLock lock(m_queue_lock);
|
||||
m_queue.enqueue(parse_data_packet(m_data));
|
||||
}
|
||||
evaluate_block_conditions();
|
||||
};
|
||||
|
||||
VERIFY(m_data_state < sizeof(m_data.bytes) / sizeof(m_data.bytes[0]));
|
||||
m_data.bytes[m_data_state] = byte;
|
||||
|
||||
switch (m_data_state) {
|
||||
case 0:
|
||||
if (!(byte & 0x08)) {
|
||||
dbgln("PS2Mouse: Stream out of sync.");
|
||||
break;
|
||||
}
|
||||
++m_data_state;
|
||||
break;
|
||||
case 1:
|
||||
++m_data_state;
|
||||
break;
|
||||
case 2:
|
||||
if (m_has_wheel) {
|
||||
++m_data_state;
|
||||
break;
|
||||
}
|
||||
commit_packet();
|
||||
break;
|
||||
case 3:
|
||||
VERIFY(m_has_wheel);
|
||||
commit_packet();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
MousePacket PS2MouseDevice::parse_data_packet(const RawPacket& raw_packet)
|
||||
{
|
||||
int x = raw_packet.bytes[1];
|
||||
int y = raw_packet.bytes[2];
|
||||
int z = 0;
|
||||
if (m_has_wheel) {
|
||||
// FIXME: For non-Intellimouse, this is a full byte.
|
||||
// However, for now, m_has_wheel is only set for Intellimouse.
|
||||
z = (char)(raw_packet.bytes[3] & 0x0f);
|
||||
|
||||
// -1 in 4 bits
|
||||
if (z == 15)
|
||||
z = -1;
|
||||
}
|
||||
bool x_overflow = raw_packet.bytes[0] & 0x40;
|
||||
bool y_overflow = raw_packet.bytes[0] & 0x80;
|
||||
bool x_sign = raw_packet.bytes[0] & 0x10;
|
||||
bool y_sign = raw_packet.bytes[0] & 0x20;
|
||||
if (x && x_sign)
|
||||
x -= 0x100;
|
||||
if (y && y_sign)
|
||||
y -= 0x100;
|
||||
if (x_overflow || y_overflow) {
|
||||
x = 0;
|
||||
y = 0;
|
||||
}
|
||||
MousePacket packet;
|
||||
packet.x = x;
|
||||
packet.y = y;
|
||||
packet.z = z;
|
||||
packet.buttons = raw_packet.bytes[0] & 0x07;
|
||||
|
||||
if (m_has_five_buttons) {
|
||||
if (raw_packet.bytes[3] & 0x10)
|
||||
packet.buttons |= MousePacket::BackButton;
|
||||
if (raw_packet.bytes[3] & 0x20)
|
||||
packet.buttons |= MousePacket::ForwardButton;
|
||||
}
|
||||
|
||||
packet.is_relative = true;
|
||||
#if PS2MOUSE_DEBUG
|
||||
dbgln("PS2 Relative Mouse: Buttons {:x}", packet.buttons);
|
||||
dbgln("Mouse: X {}, Y {}, Z {}", packet.x, packet.y, packet.z);
|
||||
#endif
|
||||
return packet;
|
||||
}
|
||||
|
||||
u8 PS2MouseDevice::get_device_id()
|
||||
{
|
||||
if (send_command(PS2MOUSE_GET_DEVICE_ID) != I8042_ACK)
|
||||
return 0;
|
||||
return read_from_device();
|
||||
}
|
||||
|
||||
u8 PS2MouseDevice::read_from_device()
|
||||
{
|
||||
return m_i8042_controller->read_from_device(instrument_type());
|
||||
}
|
||||
|
||||
u8 PS2MouseDevice::send_command(u8 command)
|
||||
{
|
||||
u8 response = m_i8042_controller->send_command(instrument_type(), command);
|
||||
if (response != I8042_ACK)
|
||||
dbgln("PS2MouseDevice: Command {} got {} but expected ack: {}", command, response, I8042_ACK);
|
||||
return response;
|
||||
}
|
||||
|
||||
u8 PS2MouseDevice::send_command(u8 command, u8 data)
|
||||
{
|
||||
u8 response = m_i8042_controller->send_command(instrument_type(), command, data);
|
||||
if (response != I8042_ACK)
|
||||
dbgln("PS2MouseDevice: Command {} got {} but expected ack: {}", command, response, I8042_ACK);
|
||||
return response;
|
||||
}
|
||||
|
||||
void PS2MouseDevice::set_sample_rate(u8 rate)
|
||||
{
|
||||
send_command(PS2MOUSE_SET_SAMPLE_RATE, rate);
|
||||
}
|
||||
|
||||
UNMAP_AFTER_INIT RefPtr<PS2MouseDevice> PS2MouseDevice::try_to_initialize(const I8042Controller& ps2_controller)
|
||||
{
|
||||
auto device = adopt(*new PS2MouseDevice(ps2_controller));
|
||||
if (device->initialize())
|
||||
return device;
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
UNMAP_AFTER_INIT bool PS2MouseDevice::initialize()
|
||||
{
|
||||
if (!m_i8042_controller->reset_device(instrument_type())) {
|
||||
dbgln("PS2MouseDevice: I8042 controller failed to reset device");
|
||||
return false;
|
||||
}
|
||||
|
||||
u8 device_id = read_from_device();
|
||||
|
||||
// Set default settings.
|
||||
if (send_command(PS2MOUSE_SET_DEFAULTS) != I8042_ACK)
|
||||
return false;
|
||||
|
||||
if (send_command(PS2MOUSE_ENABLE_PACKET_STREAMING) != I8042_ACK)
|
||||
return false;
|
||||
|
||||
if (device_id != PS2MOUSE_INTELLIMOUSE_ID) {
|
||||
// Send magical wheel initiation sequence.
|
||||
set_sample_rate(200);
|
||||
set_sample_rate(100);
|
||||
set_sample_rate(80);
|
||||
device_id = get_device_id();
|
||||
}
|
||||
if (device_id == PS2MOUSE_INTELLIMOUSE_ID) {
|
||||
m_has_wheel = true;
|
||||
dmesgln("PS2MouseDevice: Mouse wheel enabled!");
|
||||
} else {
|
||||
dmesgln("PS2MouseDevice: No mouse wheel detected!");
|
||||
}
|
||||
|
||||
if (device_id == PS2MOUSE_INTELLIMOUSE_ID) {
|
||||
// Try to enable 5 buttons as well!
|
||||
set_sample_rate(200);
|
||||
set_sample_rate(200);
|
||||
set_sample_rate(80);
|
||||
device_id = get_device_id();
|
||||
}
|
||||
|
||||
if (device_id == PS2MOUSE_INTELLIMOUSE_EXPLORER_ID) {
|
||||
m_has_five_buttons = true;
|
||||
dmesgln("PS2MouseDevice: 5 buttons enabled!");
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
}
|
80
Kernel/Devices/HID/PS2MouseDevice.h
Normal file
80
Kernel/Devices/HID/PS2MouseDevice.h
Normal file
|
@ -0,0 +1,80 @@
|
|||
/*
|
||||
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. 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.
|
||||
*
|
||||
* 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 HOLDER 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.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <AK/CircularQueue.h>
|
||||
#include <Kernel/API/MousePacket.h>
|
||||
#include <Kernel/Devices/HID/I8042Controller.h>
|
||||
#include <Kernel/Devices/HID/MouseDevice.h>
|
||||
#include <Kernel/Interrupts/IRQHandler.h>
|
||||
#include <Kernel/Random.h>
|
||||
|
||||
namespace Kernel {
|
||||
class PS2MouseDevice : public IRQHandler
|
||||
, public MouseDevice
|
||||
, public I8042Device {
|
||||
public:
|
||||
static RefPtr<PS2MouseDevice> try_to_initialize(const I8042Controller&);
|
||||
bool initialize();
|
||||
|
||||
virtual ~PS2MouseDevice() override;
|
||||
|
||||
virtual const char* purpose() const override { return class_name(); }
|
||||
|
||||
// ^I8042Device
|
||||
virtual void irq_handle_byte_read(u8 byte) override;
|
||||
virtual void enable_interrupts() override
|
||||
{
|
||||
enable_irq();
|
||||
}
|
||||
|
||||
protected:
|
||||
explicit PS2MouseDevice(const I8042Controller&);
|
||||
// ^IRQHandler
|
||||
virtual void handle_irq(const RegisterState&) override;
|
||||
|
||||
struct RawPacket {
|
||||
union {
|
||||
u32 dword;
|
||||
u8 bytes[4];
|
||||
};
|
||||
};
|
||||
|
||||
u8 read_from_device();
|
||||
u8 send_command(u8 command);
|
||||
u8 send_command(u8 command, u8 data);
|
||||
MousePacket parse_data_packet(const RawPacket&);
|
||||
void set_sample_rate(u8);
|
||||
u8 get_device_id();
|
||||
|
||||
u8 m_data_state { 0 };
|
||||
RawPacket m_data;
|
||||
bool m_has_wheel { false };
|
||||
bool m_has_five_buttons { false };
|
||||
};
|
||||
|
||||
}
|
74
Kernel/Devices/HID/VMWareMouseDevice.cpp
Normal file
74
Kernel/Devices/HID/VMWareMouseDevice.cpp
Normal file
|
@ -0,0 +1,74 @@
|
|||
/*
|
||||
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. 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.
|
||||
*
|
||||
* 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 HOLDER 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.
|
||||
*/
|
||||
|
||||
#include <Kernel/Devices/HID/VMWareMouseDevice.h>
|
||||
#include <Kernel/Devices/VMWareBackdoor.h>
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
UNMAP_AFTER_INIT RefPtr<VMWareMouseDevice> VMWareMouseDevice::try_to_initialize(const I8042Controller& ps2_controller)
|
||||
{
|
||||
if (!VMWareBackdoor::the())
|
||||
return {};
|
||||
if (!VMWareBackdoor::the()->vmmouse_is_absolute())
|
||||
return {};
|
||||
auto device = adopt(*new VMWareMouseDevice(ps2_controller));
|
||||
if (device->initialize())
|
||||
return device;
|
||||
return {};
|
||||
}
|
||||
|
||||
void VMWareMouseDevice::irq_handle_byte_read(u8)
|
||||
{
|
||||
VERIFY(VMWareBackdoor::the());
|
||||
VERIFY(VMWareBackdoor::the()->vmmouse_is_absolute());
|
||||
// We won't receive complete packets with the backdoor enabled,
|
||||
// we will only get one byte for each event, which we'll just
|
||||
// discard. If we were to wait until we *think* that we got a
|
||||
// full PS/2 packet then we would create a backlog in the VM
|
||||
// because we wouldn't read the appropriate number of mouse
|
||||
// packets from VMWareBackdoor.
|
||||
auto mouse_packet = VMWareBackdoor::the()->receive_mouse_packet();
|
||||
if (mouse_packet.has_value()) {
|
||||
m_entropy_source.add_random_event(mouse_packet.value());
|
||||
{
|
||||
ScopedSpinLock lock(m_queue_lock);
|
||||
m_queue.enqueue(mouse_packet.value());
|
||||
}
|
||||
evaluate_block_conditions();
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
VMWareMouseDevice::VMWareMouseDevice(const I8042Controller& ps2_controller)
|
||||
: PS2MouseDevice(ps2_controller)
|
||||
{
|
||||
}
|
||||
VMWareMouseDevice::~VMWareMouseDevice()
|
||||
{
|
||||
}
|
||||
|
||||
}
|
50
Kernel/Devices/HID/VMWareMouseDevice.h
Normal file
50
Kernel/Devices/HID/VMWareMouseDevice.h
Normal file
|
@ -0,0 +1,50 @@
|
|||
/*
|
||||
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright notice, this
|
||||
* list of conditions and the following disclaimer.
|
||||
*
|
||||
* 2. 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.
|
||||
*
|
||||
* 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 HOLDER 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.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <AK/CircularQueue.h>
|
||||
#include <Kernel/API/MousePacket.h>
|
||||
#include <Kernel/Devices/HID/I8042Controller.h>
|
||||
#include <Kernel/Devices/HID/PS2MouseDevice.h>
|
||||
#include <Kernel/Interrupts/IRQHandler.h>
|
||||
#include <Kernel/Random.h>
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
class VMWareMouseDevice final : public PS2MouseDevice {
|
||||
public:
|
||||
static RefPtr<VMWareMouseDevice> try_to_initialize(const I8042Controller&);
|
||||
virtual ~VMWareMouseDevice() override;
|
||||
|
||||
// ^I8042Device
|
||||
virtual void irq_handle_byte_read(u8 byte) override;
|
||||
|
||||
private:
|
||||
explicit VMWareMouseDevice(const I8042Controller&);
|
||||
};
|
||||
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue