ps2

2026-01-31 01:51:53 +08:00 · 2020-08-06 07:03:29 +03:00
parent 05984cee5d
commit 1196285045
14 changed files with 475 additions and 90 deletions
--- a/hid/src/ps2/hid.h
+++ b/hid/src/ps2/hid.h
@@ -0,0 +1,92 @@
+/*****************************************************************************
+#                                                                            #
+#    KVMD - The main Pi-KVM daemon.                                          #
+#                                                                            #
+#    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
+#                                                                            #
+#    This program is free software: you can redistribute it and/or modify    #
+#    it under the terms of the GNU General Public License as published by    #
+#    the Free Software Foundation, either version 3 of the License, or       #
+#    (at your option) any later version.                                     #
+#                                                                            #
+#    This program is distributed in the hope that it will be useful,         #
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of          #
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the           #
+#    GNU General Public License for more details.                            #
+#                                                                            #
+#    You should have received a copy of the GNU General Public License       #
+#    along with this program.  If not, see <https://www.gnu.org/licenses/>.  #
+#                                                                            #
+*****************************************************************************/
+
+
+#pragma once
+
+#include <Arduino.h>
+#include <ps2dev.h>
+
+#include "../inline.h"
+
+#include "keymap.h"
+
+// #define PS2_KBD_CLOCK_PIN	3
+// #define PS2_KBD_DATA_PIN		2
+
+
+class Ps2Hid {
+	// https://wiki.osdev.org/PS/2_Keyboard
+
+	public:
+		Ps2Hid() : _dev(PS2_KBD_CLOCK_PIN, PS2_KBD_DATA_PIN) {}
+
+		void begin() {
+			_dev.keyboard_init();
+		}
+
+		INLINE void periodic() {
+			_dev.keyboard_handle(&_leds);
+		}
+
+		INLINE void sendKey(uint8_t code, bool state) {
+			Ps2KeyType ps2_type;
+			uint8_t ps2_code;
+
+			keymapPs2(code, &ps2_type, &ps2_code);
+			if (ps2_type != PS2_KEY_TYPE_UNKNOWN) {
+				// Не отправлялась часть нажатий. Когда clock на нуле, комп не принимает ничего от клавы.
+				// Этот костыль понижает процент пропущенных нажатий.
+				while (digitalRead(PS2_KBD_CLOCK_PIN) == 0) {};
+				if (state) {
+					switch (ps2_type) {
+						case PS2_KEY_TYPE_REG: _dev.keyboard_press(ps2_code); break;
+						case PS2_KEY_TYPE_SPEC: _dev.keyboard_press_special(ps2_code); break;
+						case PS2_KEY_TYPE_PRINT: _dev.keyboard_press_printscreen(); break;
+						case PS2_KEY_TYPE_PAUSE: _dev.keyboard_pausebreak(); break;
+						case PS2_KEY_TYPE_UNKNOWN: break;
+					}
+				} else {
+					switch (ps2_type) {
+						case PS2_KEY_TYPE_REG: _dev.keyboard_release(ps2_code); break;
+						case PS2_KEY_TYPE_SPEC: _dev.keyboard_release_special(ps2_code); break;
+						case PS2_KEY_TYPE_PRINT: _dev.keyboard_release_printscreen(); break;
+						case PS2_KEY_TYPE_PAUSE: break;
+						case PS2_KEY_TYPE_UNKNOWN: break;
+					}
+				}
+			}
+		}
+
+		INLINE uint8_t getLedsAs(uint8_t caps, uint8_t scroll, uint8_t num) {
+			uint8_t result = 0;
+
+			periodic();
+			if (_leds & 0b00000100) result |= caps;
+			if (_leds & 0b00000001) result |= scroll;
+			if (_leds & 0b00000010) result |= num;
+			return result;
+		}
+
+	private:
+		PS2dev _dev;
+		uint8_t _leds = 0;
+};