beenull/ladybird
1
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2024-11-26 09:30:24 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 7
ladybird/Kernel/Devices/KeyboardDevice.cpp
Andreas Kling 5d180d1f99 Everywhere: Rename ASSERT => VERIFY 
(...and ASSERT_NOT_REACHED => VERIFY_NOT_REACHED)

Since all of these checks are done in release builds as well,
let's rename them to VERIFY to prevent confusion, as everyone is
used to assertions being compiled out in release.

We can introduce a new ASSERT macro that is specifically for debug
checks, but I'm doing this wholesale conversion first since we've
accumulated thousands of these already, and it's not immediately
obvious which ones are suitable for ASSERT.
2021-02-23 20:56:54 +01:00

477 lines
13 KiB
C++
Raw Blame History

/*
* 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/Assertions.h>
#include <AK/ByteBuffer.h>
#include <AK/Singleton.h>
#include <AK/StringView.h>
#include <AK/Types.h>
#include <Kernel/Arch/i386/CPU.h>
#include <Kernel/Debug.h>
#include <Kernel/Devices/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_Logo,
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_Logo,
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 = m_character_map.get_char(event);
if (pressed)
event.flags |= Is_Press;
if (m_client)
m_client->on_key_pressed(event);
{
ScopedSpinLock lock(m_queue_lock);
m_queue.enqueue(event);
}
m_has_e0_prefix = false;
evaluate_block_conditions();
}
void KeyboardDevice::handle_irq(const RegisterState&)
{
// The controller will read the data and call irq_handle_byte_read
// for the appropriate device
m_controller.irq_process_input_buffer(I8042Controller::Device::Keyboard);
}
void KeyboardDevice::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;
}
#if KEYBOARD_DEBUG
dbgln("Keyboard::irq_handle_byte_read: {:#02x} {}", ch, (pressed ? "down" : "up"));
#endif
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_Logo, 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);
}
}
}
static AK::Singleton<KeyboardDevice> s_the;
KeyboardDevice& KeyboardDevice::the()
{
return *s_the;
}
// clang-format off
static const Keyboard::CharacterMapData DEFAULT_CHARACTER_MAP =
{
.map = {
0, '\033', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0x08,
'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
0, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', 0,
'\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0, '*', 0,
' ', 0, 0,
//60 70 80
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,
},
.shift_map = {
0, '\033', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', 0x08,
'\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n',
0, 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '~', 0,
'|', 'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?', 0, '*', 0,
' ', 0, 0,
//60 70 80
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,
},
.alt_map = {
0, '\033', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0x08,
'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
0, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', 0,
'\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0, '*', 0,
' ', 0, 0,
//60 70 80
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,
},
.altgr_map = {
0, '\033', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0x08,
'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
0, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', 0,
'\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0, '*', 0,
' ', 0, 0,
//60 70 80
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,
},
.shift_altgr_map = {
0, '\033', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0x08,
'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
0, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', 0,
'\\', 'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0, '*', 0,
' ', 0, 0,
//60 70 80
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,
},
};
// clang-format on
UNMAP_AFTER_INIT KeyboardDevice::KeyboardDevice()
: IRQHandler(IRQ_KEYBOARD)
, CharacterDevice(85, 1)
, m_controller(I8042Controller::the())
, m_character_map("en-us", DEFAULT_CHARACTER_MAP)
{
}
UNMAP_AFTER_INIT KeyboardDevice::~KeyboardDevice()
{
}
UNMAP_AFTER_INIT bool KeyboardDevice::initialize()
{
if (!m_controller.reset_device(I8042Controller::Device::Keyboard)) {
dbgln("KeyboardDevice: I8042 controller failed to reset device");
return false;
}
return true;
}
bool KeyboardDevice::can_read(const FileDescription&, size_t) const
{
return !m_queue.is_empty();
}
KResultOr<size_t> KeyboardDevice::read(FileDescription&, size_t, 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&, size_t, const UserOrKernelBuffer&, size_t)
{
return 0;
}
KeyboardClient::~KeyboardClient()
{
}
void KeyboardDevice::set_maps(const Keyboard::CharacterMapData& character_map_data, const String& character_map_name)
{
m_character_map.set_character_map_data(character_map_data);
m_character_map.set_character_map_name(character_map_name);
dbgln("New Character map '{}' passed in by client.", character_map_name);
}
}
Reference in a new issue View git blame Copy permalink