/* * Copyright (c) 2021, Liav A. * * SPDX-License-Identifier: BSD-2-Clause */ #include #include #if ARCH(X86_64) # include #endif #include #include #include #include namespace Kernel { Atomic g_caps_lock_remapped_to_ctrl; static Singleton s_the; // clang-format off static constexpr 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 void HIDManagement::set_client(KeyboardClient* client) { SpinlockLocker locker(m_client_lock); m_client = client; } size_t HIDManagement::generate_minor_device_number_for_mouse() { // FIXME: Lock this to prevent race conditions with hot-plugging devices! return m_mouse_minor_number++; } size_t HIDManagement::generate_minor_device_number_for_keyboard() { // FIXME: Lock this to prevent race conditions with hot-plugging devices! return m_keyboard_minor_number++; } UNMAP_AFTER_INIT HIDManagement::KeymapData::KeymapData() : character_map_name(KString::must_create("en-us"sv)) , character_map(DEFAULT_CHARACTER_MAP) { } UNMAP_AFTER_INIT HIDManagement::HIDManagement() { } void HIDManagement::set_maps(NonnullOwnPtr character_map_name, Keyboard::CharacterMapData const& character_map_data) { m_keymap_data.with([&](auto& keymap_data) { keymap_data.character_map_name = move(character_map_name); keymap_data.character_map = character_map_data; dbgln("New Character map '{}' passed in by client.", keymap_data.character_map_name); }); } UNMAP_AFTER_INIT ErrorOr HIDManagement::enumerate() { // FIXME: When we have USB HID support, we should ensure that we disable // emulation of the PS/2 controller if it was set by the BIOS. // If ACPI indicates we have an i8042 controller and the USB controller was // set to emulate PS/2, we should not initialize the PS/2 controller. #if ARCH(X86_64) auto has_i8042_controller = false; auto i8042_controller = I8042Controller::initialize(); switch (kernel_command_line().i8042_presence_mode()) { case I8042PresenceMode::Automatic: { // Note: If ACPI is disabled or doesn't indicate that we have an i8042, we // still perform a manual existence check via probing, which is relevant on // QEMU, for example. This probing check is known to not work on bare metal // in all cases, so if we can get a 'yes' from ACPI, we skip it. if (ACPI::Parser::the() && ACPI::Parser::the()->have_8042()) has_i8042_controller = true; else if (i8042_controller->check_existence_via_probing({})) has_i8042_controller = true; break; } case I8042PresenceMode::Force: { has_i8042_controller = true; break; } case I8042PresenceMode::None: { break; } case I8042PresenceMode::AggressiveTest: { if (i8042_controller->check_existence_via_probing({})) has_i8042_controller = true; break; } } // Note: If we happen to not have i8042 just return "gracefully" for now. if (!has_i8042_controller) return {}; m_i8042_controller = i8042_controller; TRY(m_i8042_controller->detect_devices()); if (m_i8042_controller->mouse()) m_hid_devices.append(m_i8042_controller->mouse().release_nonnull()); if (m_i8042_controller->keyboard()) m_hid_devices.append(m_i8042_controller->keyboard().release_nonnull()); #endif return {}; } UNMAP_AFTER_INIT ErrorOr HIDManagement::initialize() { VERIFY(!s_the.is_initialized()); s_the.ensure_instance(); return s_the->enumerate(); } HIDManagement& HIDManagement::the() { return *s_the; } u32 HIDManagement::get_char_from_character_map(KeyEvent event) const { auto modifiers = event.modifiers(); auto index = event.scancode & 0xFF; // Index is last byte of scan code. auto caps_lock_on = event.caps_lock_on; u32 code_point = 0; m_keymap_data.with([&](auto& keymap_data) { if (modifiers & Mod_Alt) code_point = keymap_data.character_map.alt_map[index]; else if ((modifiers & Mod_Shift) && (modifiers & Mod_AltGr)) code_point = keymap_data.character_map.shift_altgr_map[index]; else if (modifiers & Mod_Shift) code_point = keymap_data.character_map.shift_map[index]; else if (modifiers & Mod_AltGr) code_point = keymap_data.character_map.altgr_map[index]; else code_point = keymap_data.character_map.map[index]; }); if (caps_lock_on && (modifiers == 0 || modifiers == Mod_Shift)) { if (code_point >= 'a' && code_point <= 'z') code_point &= ~0x20; else if (code_point >= 'A' && code_point <= 'Z') code_point |= 0x20; } if (event.e0_prefix && event.key == Key_Slash) { // If Key_Slash (scancode = 0x35) mapped to other form "/", we fix num pad key of "/" with this case. code_point = '/'; } else if (event.e0_prefix && event.key != Key_Return) { // Except for `keypad-/` and 'keypad-return', all e0 scan codes are not actually characters. i.e., `keypad-0` and // `Insert` have the same scancode except for the prefix, but insert should not have a code_point. code_point = 0; } return code_point; } }