--- /dev/null
+#
+# Makefile for Teensy
+#
+# Target file name (without extension).
+TARGET = xt_usb_lufa
+
+# Directory common source filess exist
+TMK_DIR = ../../tmk_core
+
+# Directory keyboard dependent files exist
+TARGET_DIR = .
+
+# project specific files
+SRC = keymap_common.c \
+ matrix.c \
+ led.c
+
+ifdef KEYMAP
+ SRC := keymap_$(KEYMAP).c $(SRC)
+else
+ SRC := keymap_plain.c $(SRC)
+endif
+
+CONFIG_H = config.h
+
+
+# MCU name
+#MCU = at90usb1287
+MCU = atmega32u4
+
+# Processor frequency.
+# This will define a symbol, F_CPU, in all source code files equal to the
+# processor frequency in Hz. You can then use this symbol in your source code to
+# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+# automatically to create a 32-bit value in your source code.
+#
+# This will be an integer division of F_USB below, as it is sourced by
+# F_USB after it has run through any CPU prescalers. Note that this value
+# does not *change* the processor frequency - it should merely be updated to
+# reflect the processor speed set externally so that the code can use accurate
+# software delays.
+F_CPU = 16000000
+
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+# This will define a symbol, F_USB, in all source code files equal to the
+# input clock frequency (before any prescaling is performed) in Hz. This value may
+# differ from F_CPU if prescaling is used on the latter, and is required as the
+# raw input clock is fed directly to the PLL sections of the AVR for high speed
+# clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+# at the end, this will be done automatically to create a 32-bit value in your
+# source code.
+#
+# If no clock division is performed on the input clock inside the AVR (via the
+# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Interrupt driven control endpoint task(+60)
+#OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+
+# Boot Section Size in *bytes*
+# Teensy halfKay 512
+# Teensy++ halfKay 1024
+# Atmel DFU loader 4096
+# LUFA bootloader 4096
+# USBaspLoader 2048
+OPT_DEFS += -DBOOTLOADER_SIZE=512
+
+
+# Build Options
+# comment out to disable the options.
+#
+#BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes # Audio control and System control(+450)
+CONSOLE_ENABLE = yes # Console for debug(+400)
+COMMAND_ENABLE = yes # Commands for debug and configuration
+NKRO_ENABLE = yes # USB Nkey Rollover - not yet supported in LUFA
+
+
+# XT/2 Options
+#
+XT_USE_INT = yes # uses external interrupt for falling edge of PS/2 clock pin
+
+
+# Optimize size but this may cause error "relocation truncated to fit"
+#EXTRALDFLAGS = -Wl,--relax
+
+# Search Path
+VPATH += $(TARGET_DIR)
+VPATH += $(TMK_DIR)
+
+include $(TMK_DIR)/protocol.mk
+include $(TMK_DIR)/protocol/lufa.mk
+include $(TMK_DIR)/common.mk
+include $(TMK_DIR)/rules.mk
--- /dev/null
+PS/2 to USB keyboard converter
+==============================
+This firmware converts PS/2 keyboard protocol to USB.(It supports Scan Code Set 2.)
+
+
+Connect Wires
+-------------
+In case of Teensy2.0(ATMega32U4):
+
+1. Connect **Vcc** and **GND**.
+2. Connect **Clock** and **Data** line.
+ - **Interrupt**: **Clock** is on `PD1` and **Data** on `PD0`.(Recommended. Soarer's converter compatible)
+ - **Busywait**: **Clock** is on `PD1` and **Data** on `PD0`.
+ - **USART**: **Clock** is on `PD5` and **Data** on `PD2`.
+3. Optionally you need pull-up resistor. 1K-10K Ohm is OK.
+
+To change pin configuration edit **config.h** and **Makefile**.
+
+
+Build Firmware
+--------------
+For **PJRC Teensy** just run `make`:
+
+ $ make clean
+ $ make
+
+To select keymap:
+
+ $ make clean
+ $ make KEYMAP=[plain|jis|spacefn|...]
+
+After that you will find HEX file `ps2_usb_lufa.hex` in current directory.
+
+
+- For **TMK converter Rev.1** use `make -f Makefile.tmk_rev1` instead of `make` and HEX file is `ps2_usb_tmk_rev1.hex`.
+
+- For **TMK converter Rev.2** use `make -f Makefile.tmk_rev2` instead of `make` and HEX file is `ps2_usb_tmk_rev2.hex`.
+
+
+Keymap
+------
+Several version of keymap are available in advance but you are recommended to define your favorite layout yourself. To define your own keymap create file named `keymap_<name>.c` and see keymap document(you can find in README.md of top directory) and existent keymap files.
+
+
+PS/2 signal handling implementations
+------------------------------------
+Following three methods can be used to implement PS/2 signal handling.
+
+### Simple and stupid busy-wait(ps2_busywait.c)
+ This is expected to implemented with portable C code for reference.
+### Interrupt driven(ps2_interrupt.c)
+ Uses pin interrupt to detect falling edge of clock line.
+### USART hardware module(ps2_usart.c)
+ Uses AVR USART engine to receive PS/2 signal.
+
+To select method edit Makefile.
+
+
+V-USB Support
+-------------
+With V-USB you can use this converter on ATmega(168/328) but it doesn't support NKRO at this time.
+
+Circuit:
+
+ +---+ +---------------+
+ USB GND | | ATmega168 |
+ === C3 | |
+ 5V <-------+--------+---|Vcc,AVCC | PS/2
+ R1 | | ====
+ D- <----+--+-----R2-----|INT1 RXD|------->DATA
+ D+ <----|---+----R3-----|INT0 XCK|------->CLOCK
+ Z1 Z2 | | ->5V
+ GND<----+---+--+--+-----|GND | ->GND
+ | | | |
+ | C2-+--|XTAL1 |
+ | X1 | |
+ +--C3-+--|XTAL2 |
+ +---------------+
+ R1: 1.5K Ohm
+ R2,R3: 68 Ohm
+ Z1,Z2: Zenner 3.6V
+ C1,C2: 22pF
+ C3: 0.1uF
+ X1: Crystal 20MHz(16MHz/12MHz)
--- /dev/null
+/*
+Copyright 2012 Jun Wako <wakojun@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 2 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 <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include <avr/interrupt.h>
+
+#define VENDOR_ID 0xFEED
+#define PRODUCT_ID 0x6512
+#define DEVICE_VER 0x0001
+#define MANUFACTURER t.m.k.
+#define PRODUCT XT keyboard converter
+#define DESCRIPTION convert XT keyboard to USB
+
+
+/* matrix size */
+#define MATRIX_ROWS 16 // keycode bit: 3-0
+#define MATRIX_COLS 8 // keycode bit: 6-4
+
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+ keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) || \
+ keyboard_report->mods == (MOD_BIT(KC_LCTRL) | MOD_BIT(KC_RSHIFT)) \
+)
+
+
+//#define NO_SUSPEND_POWER_DOWN
+
+/*
+ * XT Pin interrupt
+ */
+#ifdef XT_USE_INT
+/* uses INT1 for clock line(ATMega32U4) */
+#define XT_CLOCK_PORT PORTD
+#define XT_CLOCK_PIN PIND
+#define XT_CLOCK_DDR DDRD
+#define XT_CLOCK_BIT 1
+#define XT_DATA_PORT PORTD
+#define XT_DATA_PIN PIND
+#define XT_DATA_DDR DDRD
+#define XT_DATA_BIT 0
+#define XT_INT_INIT() do { \
+ EICRA |= ((1<<ISC11) | \
+ (0<<ISC10)); \
+} while (0)
+#define XT_INT_ON() do { \
+ EIMSK |= (1<<INT1); \
+} while (0)
+#define XT_INT_OFF() do { \
+ EIMSK &= ~(1<<INT1); \
+} while (0)
+#define XT_INT_VECT INT1_vect
+#endif
+
+#endif
--- /dev/null
+/*
+Copyright 2011,2012,2013 Jun Wako <wakojun@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 2 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 <http://www.gnu.org/licenses/>.
+*/
+#include "keymap_common.h"
+#include "progmem.h"
+
+
+/* translates key to keycode */
+uint8_t keymap_key_to_keycode(uint8_t layer, keypos_t key)
+{
+ return pgm_read_byte(&keymaps[(layer)][(key.row)][(key.col)]);
+}
+
+/* translates Fn keycode to action */
+action_t keymap_fn_to_action(uint8_t keycode)
+{
+ return (action_t){ .code = pgm_read_word(&fn_actions[FN_INDEX(keycode)]) };
+}
--- /dev/null
+/*
+Copyright 2011,2012,2013 Jun Wako <wakojun@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 2 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 <http://www.gnu.org/licenses/>.
+*/
+#ifndef KEYMAP_COMMON_H
+#define KEYMAP_COMMON_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "keycode.h"
+#include "action.h"
+#include "action_macro.h"
+#include "report.h"
+#include "print.h"
+#include "debug.h"
+#include "keymap.h"
+
+
+// 32*8(256) byte array which converts PS/2 code into USB code
+extern const uint8_t keymaps[][MATRIX_ROWS][MATRIX_COLS];
+extern const uint16_t fn_actions[];
+
+/* All keys */
+#define KEYMAP_ALL( \
+ K00, K02,K03,K04,K05,K06,K07,K08,K09,K0A,K0B,K0C,K0D, K0E,K0F,K0G, \
+ K10,K11,K12,K13,K14,K15,K16,K17,K18,K19,K1A,K1B,K1C,K1D, K1E,K1F,K1G, K1H,K1I,K1J,K1K, \
+ K20,K21,K22,K23,K24,K25,K26,K27,K28,K29,K2A,K2B,K2C,K2D, K2E,K2F,K2G, K2H,K2I,K2J, \
+ K30,K31,K32,K33,K34,K35,K36,K37,K38,K39,K3A,K3B, K3D, K3H,K3I,K3J,K3K, \
+ K40,K41,K42,K43,K44,K45,K46,K47,K48,K49,K4A, K4D, K4F, K4H,K4I,K4J, \
+ K50,K51,K52, K55, K5A,K5B,K5C,K5D, K5E,K5F,K5G, K5H, K5J,K5K, \
+ \
+ K60, K61, K62, /* System Power, Sleep, Wake */ \
+ K70, K71, K72, /* Mute, Volume Up, Volume Down */ \
+ K80, K81, K82, K83, K84, /* Next, Previous, Stop, Pause, Media Select */ \
+ K90, K91, K92, /* Mail, Calculator, My Computer */ \
+ KA0, KA1, KA2, KA3, /* WWW Search, Home, Back, Forward */ \
+ KB0, KB1, KB2 /* WWW Stop, Refresh, Favorites */ \
+) { \
+ { KC_NO, KC_##K00, KC_##K11, KC_##K12, KC_##K13, KC_##K14, KC_##K15, KC_##K16 }, \
+ { KC_##K17, KC_##K18, KC_##K19, KC_##K1A, KC_##K1B, KC_##K1C, KC_##K1D, KC_##K20 }, \
+ { KC_##K21, KC_##K22, KC_##K23, KC_##K24, KC_##K25, KC_##K26, KC_##K27, KC_##K28 }, \
+ { KC_##K29, KC_##K2A, KC_##K2B, KC_##K2C, KC_##K3D, KC_##K50, KC_##K31, KC_##K32 }, \
+ { KC_##K33, KC_##K34, KC_##K35, KC_##K36, KC_##K37, KC_##K38, KC_##K39, KC_##K3A }, \
+ { KC_##K3B, KC_##K10, KC_##K40, KC_##K2D, KC_##K41, KC_##K42, KC_##K43, KC_##K44 }, \
+ { KC_##K45, KC_##K46, KC_##K47, KC_##K48, KC_##K49, KC_##K4A, KC_##K4D, KC_##K1J }, \
+ { KC_##K52, KC_##K55, KC_##K30, KC_##K02, KC_##K03, KC_##K04, KC_##K05, KC_##K06 }, \
+ { KC_##K07, KC_##K08, KC_##K09, KC_##K0A, KC_##K0B, KC_##K1H, KC_##K0F, KC_##K2H }, \
+ { KC_##K2I, KC_##K2J, KC_##K1K, KC_##K3H, KC_##K3I, KC_##K3J, KC_##K3K, KC_##K4H }, \
+ { KC_##K4I, KC_##K4J, KC_##K5H, KC_##K5J, KC_##K5K, KC_##K5D, KC_##K1I, KC_##K0C }, \
+ { KC_##K0D, KC_##K5A, KC_##K80, KC_##K51, KC_##K5B, KC_##K5C, KC_##K60, KC_##K61 }, \
+ { KC_##K70, KC_##K91, KC_##K83, KC_##K62, KC_##K82, KC_##KA0, KC_##KB2, KC_##KB1 }, \
+ { KC_##KB0, KC_##KA3, KC_##KA2, KC_##K92, KC_##K90, KC_##K84, KC_##K81, KC_##K1F }, \
+ { KC_##K4F, KC_##K1G, KC_##K72, KC_##K5E, KC_##K71, KC_##K5G, KC_##KA1, KC_##K2F }, \
+ { KC_##K5F, KC_##K2G, KC_##K1E, KC_##K2E, KC_##K0E, KC_##K0G, KC_NO , KC_NO } \
+}
+
+/* US layout */
+#define KEYMAP( \
+ K76,K05,K06,K04,K0C,K03,K0B,K83,K0A,K01,K09,K78,K07, KFC,K7E,KFE, \
+ K0E,K16,K1E,K26,K25,K2E,K36,K3D,K3E,K46,K45,K4E,K55,K66, KF0,KEC,KFD, K77,KCA,K7C,K7B, \
+ K0D,K15,K1D,K24,K2D,K2C,K35,K3C,K43,K44,K4D,K54,K5B,K5D, KF1,KE9,KFA, K6C,K75,K7D, \
+ K58,K1C,K1B,K23,K2B,K34,K33,K3B,K42,K4B,K4C,K52, K5A, K6B,K73,K74,K79, \
+ K12,K1A,K22,K21,K2A,K32,K31,K3A,K41,K49,K4A, K59, KF5, K69,K72,K7A, \
+ K14,K9F,K11, K29, K91,KA7,KAF,K94, KEB,KF2,KF4, K70, K71,KDA \
+) \
+KEYMAP_ALL( \
+ K76,K05,K06,K04,K0C,K03,K0B,K83,K0A,K01,K09,K78,K07, KFC,K7E,KFE, \
+ K0E,K16,K1E,K26,K25,K2E,K36,K3D,K3E,K46,K45,K4E,K55,K66, KF0,KEC,KFD, K77,KCA,K7C,K7B, \
+ K0D,K15,K1D,K24,K2D,K2C,K35,K3C,K43,K44,K4D,K54,K5B,K5D, KF1,KE9,KFA, K6C,K75,K7D, \
+ K58,K1C,K1B,K23,K2B,K34,K33,K3B,K42,K4B,K4C,K52, K5A, K6B,K73,K74,K79, \
+ K12,K1A,K22,K21,K2A,K32,K31,K3A,K41,K49,K4A, K59, KF5, K69,K72,K7A, \
+ K14,K9F,K11, K29, K91,KA7,KAF,K94, KEB,KF2,KF4, K70, K71,KDA, \
+ \
+ SYSTEM_POWER, SYSTEM_SLEEP, SYSTEM_WAKE, \
+ AUDIO_MUTE, AUDIO_VOL_UP, AUDIO_VOL_DOWN, \
+ MEDIA_NEXT_TRACK, MEDIA_PREV_TRACK, MEDIA_STOP, MEDIA_PLAY_PAUSE, MEDIA_SELECT, \
+ MAIL, CALCULATOR, MY_COMPUTER, \
+ WWW_SEARCH, WWW_HOME, WWW_BACK, WWW_FORWARD, \
+ WWW_STOP, WWW_REFRESH, WWW_FAVORITES \
+)
+
+/* ISO layout */
+#define KEYMAP_ISO( \
+ K76,K05,K06,K04,K0C,K03,K0B,K83,K0A,K01,K09,K78,K07, KFC,K7E,KFE, \
+ K0E,K16,K1E,K26,K25,K2E,K36,K3D,K3E,K46,K45,K4E,K55,K66, KF0,KEC,KFD, K77,KCA,K7C,K7B, \
+ K0D,K15,K1D,K24,K2D,K2C,K35,K3C,K43,K44,K4D,K54,K5B, KF1,KE9,KFA, K6C,K75,K7D, \
+ K58,K1C,K1B,K23,K2B,K34,K33,K3B,K42,K4B,K4C,K52,K5D,K5A, K6B,K73,K74,K79, \
+ K12,K61,K1A,K22,K21,K2A,K32,K31,K3A,K41,K49,K4A, K59, KF5, K69,K72,K7A, \
+ K14,K9F,K11, K29, K91,KA7,KAF,K94, KEB,KF2,KF4, K70, K71,KDA \
+) \
+KEYMAP_ALL( \
+ K76,K05,K06,K04,K0C,K03,K0B,K83,K0A,K01,K09,K78,K07, KFC,K7E,KFE, \
+ K0E,K16,K1E,K26,K25,K2E,K36,K3D,K3E,K46,K45,K4E,K55,K66, KF0,KEC,KFD, K77,KCA,K7C,K7B, \
+ K0D,K15,K1D,K24,K2D,K2C,K35,K3C,K43,K44,K4D,K54,K5B,K5D, KF1,KE9,KFA, K6C,K75,K7D, \
+ K58,K1C,K1B,K23,K2B,K34,K33,K3B,K42,K4B,K4C,K52, K5A, K6B,K73,K74,K79, \
+ K12,K1A,K22,K21,K2A,K32,K31,K3A,K41,K49,K4A, K59, KF5, K69,K72,K7A, \
+ K14,K9F,K11, K29, K91,KA7,KAF,K94, KEB,KF2,KF4, K70, K71,KDA, \
+ \
+ SYSTEM_POWER, SYSTEM_SLEEP, SYSTEM_WAKE, \
+ AUDIO_MUTE, AUDIO_VOL_UP, AUDIO_VOL_DOWN, \
+ MEDIA_NEXT_TRACK, MEDIA_PREV_TRACK, MEDIA_STOP, MEDIA_PLAY_PAUSE, MEDIA_SELECT, \
+ MAIL, CALCULATOR, MY_COMPUTER, \
+ WWW_SEARCH, WWW_HOME, WWW_BACK, WWW_FORWARD, \
+ WWW_STOP, WWW_REFRESH, WWW_FAVORITES \
+)
+
+/* JIS layout */
+#define KEYMAP_JIS( \
+ K76,K05,K06,K04,K0C,K03,K0B,K83,K0A,K01,K09,K78,K07, KFC,K7E,KFE, \
+ K0E,K16,K1E,K26,K25,K2E,K36,K3D,K3E,K46,K45,K4E,K55,K6A,K66, KF0,KEC,KFD, K77,KCA,K7C,K7B, \
+ K0D,K15,K1D,K24,K2D,K2C,K35,K3C,K43,K44,K4D,K54,K5B, KF1,KE9,KFA, K6C,K75,K7D, \
+ K58,K1C,K1B,K23,K2B,K34,K33,K3B,K42,K4B,K4C,K52,K5D, K5A, K6B,K73,K74,K79, \
+ K12,K1A,K22,K21,K2A,K32,K31,K3A,K41,K49,K4A,K51, K59, KF5, K69,K72,K7A, \
+ K14,K9F,K11, K67,K29,K64,K13, K91,KA7,KAF,K94, KEB,KF2,KF4, K70, K71,KDA \
+) \
+KEYMAP_ALL( \
+ K76,K05,K06,K04,K0C,K03,K0B,K83,K0A,K01,K09,K78,K07, KFC,K7E,KFE, \
+ K0E,K16,K1E,K26,K25,K2E,K36,K3D,K3E,K46,K45,K4E,K55,K66, KF0,KEC,KFD, K77,KCA,K7C,K7B, \
+ K0D,K15,K1D,K24,K2D,K2C,K35,K3C,K43,K44,K4D,K54,K5B,K5D, KF1,KE9,KFA, K6C,K75,K7D, \
+ K58,K1C,K1B,K23,K2B,K34,K33,K3B,K42,K4B,K4C,K52, K5A, K6B,K73,K74,K79, \
+ K12,K1A,K22,K21,K2A,K32,K31,K3A,K41,K49,K4A, K59, KF5, K69,K72,K7A, \
+ K14,K9F,K11, K29, K91,KA7,KAF,K94, KEB,KF2,KF4, K70, K71,KDA, \
+ \
+ SYSTEM_POWER, SYSTEM_SLEEP, SYSTEM_WAKE, \
+ AUDIO_MUTE, AUDIO_VOL_UP, AUDIO_VOL_DOWN, \
+ MEDIA_NEXT_TRACK, MEDIA_PREV_TRACK, MEDIA_STOP, MEDIA_PLAY_PAUSE, MEDIA_SELECT, \
+ MAIL, CALCULATOR, MY_COMPUTER, \
+ WWW_SEARCH, WWW_HOME, WWW_BACK, WWW_FORWARD, \
+ WWW_STOP, WWW_REFRESH, WWW_FAVORITES \
+)
+
+#endif
--- /dev/null
+/*
+ * JIS layout Japanese keyboard
+ */
+#include "keymap_common.h"
+
+const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ /* 0: JIS LAYOUT
+ * ,---. ,---------------. ,---------------. ,---------------. ,-----------. ,-----------.
+ * |Esc| |F1 |F2 |F3 |F4 | |F5 |F6 |F7 |F8 | |F9 |F10|F11|F12| |PrS|ScL|Pau| |Pwr|Slp|Wak|
+ * `---' `---------------' `---------------' `---------------' `-----------' `-----------'
+ * ,-----------------------------------------------------------. ,-----------. ,---------------.
+ * | `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =| JY|Bsp| |Ins|Hom|PgU| |NmL| /| *| -|
+ * |-----------------------------------------------------------| |-----------| |---------------|
+ * |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| Ret | |Del|End|PgD| | 7| 8| 9| |
+ * |------------------------------------------------------` | `-----------' |-----------| +|
+ * |CapsLo| A| S| D| F| G| H| J| K| L| ;| :| \| | | 4| 5| 6| |
+ * |-----------------------------------------------------------| ,---. |---------------|
+ * |Shift | Z| X| C| V| B| N| M| ,| ,| /| RO|Shift | |Up | | 1| 2| 3| |
+ * |-----------------------------------------------------------| ,-----------. |-----------|Ent|
+ * |Ctrl |Gui |Alt |MHEN| Space |HENK|KANA|Alt |Gui |Menu|Ctrl| |Lef|Dow|Rig| | 0| .| |
+ * `-----------------------------------------------------------' `-----------' `---------------'
+ */
+ KEYMAP_JIS(
+ ESC, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PSCR,SLCK,BRK,
+ GRV, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, MINS,EQL, JYEN,BSPC, INS, HOME,PGUP, NLCK,PSLS,PAST,PMNS,
+ TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC,RBRC, DEL, END, PGDN, P7, P8, P9,
+ CAPS,A, S, D, F, G, H, J, K, L, SCLN,QUOT,BSLS, ENT, P4, P5, P6, PPLS,
+ LSFT,Z, X, C, V, B, N, M, COMM,DOT, SLSH,RO, RSFT, UP, P1, P2, P3,
+ LCTL,LGUI,LALT, MHEN,SPC, HENK,KANA, RALT,RGUI,APP, RCTL, LEFT,DOWN,RGHT, P0, PDOT,PENT
+ ),
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+};
--- /dev/null
+#include "keymap_common.h"
+
+
+const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ /* 0: default
+ * ,---. ,---------------. ,---------------. ,---------------. ,-----------. ,-----------.
+ * |Esc| |F1 |F2 |F3 |F4 | |F5 |F6 |F7 |F8 | |F9 |F10|F11|F12| |PrS|ScL|Pau| |Pwr|Slp|Wak|
+ * `---' `---------------' `---------------' `---------------' `-----------' `-----------'
+ * ,-----------------------------------------------------------. ,-----------. ,---------------.
+ * | `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backspa| |Ins|Hom|PgU| |NmL| /| *| -|
+ * |-----------------------------------------------------------| |-----------| |---------------|
+ * |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| \| |Del|End|PgD| | 7| 8| 9| |
+ * |-----------------------------------------------------------| `-----------' |-----------| +|
+ * |CapsLo| A| S| D| F| G| H| J| K| L| ;| '|Return | | 4| 5| 6| |
+ * |-----------------------------------------------------------| ,---. |---------------|
+ * |Shift | Z| X| C| V| B| N| M| ,| ,| /|Shift | |Up | | 1| 2| 3| |
+ * |-----------------------------------------------------------| ,-----------. |-----------|Ent|
+ * |Ctrl |Gui |Alt | Space |Alt |Gui |Menu|Ctrl| |Lef|Dow|Rig| | 0| .| |
+ * `-----------------------------------------------------------' `-----------' `---------------'
+ */
+ KEYMAP(
+ ESC, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PSCR,SLCK,BRK,
+ GRV, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, MINS,EQL, BSPC, INS, HOME,PGUP, NLCK,PSLS,PAST,PMNS,
+ TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC,RBRC,BSLS, DEL, END, PGDN, P7, P8, P9,
+ CAPS,A, S, D, F, G, H, J, K, L, SCLN,QUOT, ENT, P4, P5, P6, PPLS,
+ LSFT,Z, X, C, V, B, N, M, COMM,DOT, SLSH, RSFT, UP, P1, P2, P3,
+ LCTL,LGUI,LALT, SPC, RALT,RGUI,APP, RCTL, LEFT,DOWN,RGHT, P0, PDOT,PENT
+ ),
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+};
--- /dev/null
+/*
+ * SpaceFN layout
+ * http://geekhack.org/index.php?topic=51069.0
+ */
+#include "keymap_common.h"
+
+
+const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ /* 0: default
+ * ,---. ,---------------. ,---------------. ,---------------. ,-----------. ,-----------.
+ * |Esc| |F1 |F2 |F3 |F4 | |F5 |F6 |F7 |F8 | |F9 |F10|F11|F12| |PrS|ScL|Pau| |Pwr|Slp|Wak|
+ * `---' `---------------' `---------------' `---------------' `-----------' `-----------'
+ * ,-----------------------------------------------------------. ,-----------. ,---------------.
+ * | `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backspa| |Ins|Hom|PgU| |NmL| /| *| -|
+ * |-----------------------------------------------------------| |-----------| |---------------|
+ * |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| \| |Del|End|PgD| | 7| 8| 9| |
+ * |-----------------------------------------------------------| `-----------' |-----------| +|
+ * |CapsLo| A| S| D| F| G| H| J| K| L| ;| '|Return | | 4| 5| 6| |
+ * |-----------------------------------------------------------| ,---. |---------------|
+ * |Shift | Z| X| C| V| B| N| M| ,| ,| /|Shift | |Up | | 1| 2| 3| |
+ * |-----------------------------------------------------------| ,-----------. |-----------|Ent|
+ * |Ctrl |Gui |Alt | Space |Alt |Gui |Menu|Ctrl| |Lef|Dow|Rig| | 0| .| |
+ * `-----------------------------------------------------------' `-----------' `---------------'
+ */
+ KEYMAP(
+ ESC, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PSCR,SLCK,BRK,
+ ESC, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, MINS,EQL, BSPC, INS, HOME,PGUP, NLCK,PSLS,PAST,PMNS,
+ TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC,RBRC,BSLS, DEL, END, PGDN, P7, P8, P9,
+ CAPS,A, S, D, F, G, H, J, K, L, SCLN,QUOT, ENT, P4, P5, P6, PPLS,
+ LSFT,Z, X, C, V, B, N, M, COMM,DOT, SLSH, RSFT, UP, P1, P2, P3,
+ LCTL,LGUI,LALT, FN0, RALT,RGUI,APP, RCTL, LEFT,DOWN,RGHT, P0, PDOT,PENT
+ ),
+
+ /* 1: SpaceFN
+ * ,-----------------------------------------------------------.
+ * |` | F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Delete |
+ * |-----------------------------------------------------------|
+ * | | | |Esc| | | |Hom|Up |End|Psc|Slk|Pau|Ins |
+ * |-----------------------------------------------------------|
+ * | | | | | | |PgU|Lef|Dow|Rig| | | |
+ * |-----------------------------------------------------------|
+ * | | | | | |Spc|PgD|` |~ | |Men| |
+ * |-----------------------------------------------------------|
+ * | | | | | | | | |
+ * `-----------------------------------------------------------'
+ */
+ KEYMAP(
+ ESC, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PSCR,SLCK,BRK,
+ GRV, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, DEL, INS, HOME,PGUP, NLCK,PSLS,PAST,PMNS,
+ TRNS,TRNS,TRNS,ESC, TRNS,TRNS,TRNS,HOME,UP, END, PSCR,SLCK,PAUS,INS, DEL, END, PGDN, P7, P8, P9,
+ TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,PGUP,LEFT,DOWN,RGHT,TRNS,TRNS, TRNS, P4, P5, P6, PPLS,
+ TRNS,TRNS,TRNS,TRNS,TRNS,SPC, PGDN,GRV, FN1, TRNS,APP, TRNS, UP, P1, P2, P3,
+ TRNS,TRNS,TRNS, TRNS, TRNS,TRNS,TRNS,TRNS, LEFT,DOWN,RGHT, P0, PDOT,PENT
+ ),
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+ [0] = ACTION_LAYER_TAP_KEY(1, KC_SPACE),
+ [1] = ACTION_MODS_KEY(MOD_LSFT, KC_GRV), // tilde
+};
+
--- /dev/null
+/*
+Copyright 2016 Ethan Apodaca <papodaca@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 2 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 <http://www.gnu.org/licenses/>.
+*/
+
+void led_set(uint8_t usb_led) {
+ //XT Keyboards do not have LEDs, nothing to do.
+}
--- /dev/null
+/*
+Copyright 2011 Jun Wako <wakojun@gmail.com>
+Copyright 2016 Ethan Apodaca <papodaca@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 2 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 <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "action.h"
+#include "print.h"
+#include "util.h"
+#include "debug.h"
+#include "xt.h"
+#include "matrix.h"
+
+
+static void matrix_make(uint8_t code);
+static void matrix_break(uint8_t code);
+static void matrix_clear(void);
+#ifdef MATRIX_HAS_GHOST
+static bool matrix_has_ghost_in_row(uint8_t row);
+#endif
+
+static uint8_t matrix[MATRIX_ROWS];
+#define ROW(code) (code>>3)
+#define COL(code) (code&0x07)
+
+// matrix positions for exceptional keys
+#define PRINT_SCREEN (0x7C)
+#define PAUSE (0x7D)
+
+static bool is_modified = false;
+
+
+inline
+uint8_t matrix_rows(void)
+{
+ return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+ return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+ debug_enable = true;
+ xt_host_init();
+
+ // initialize matrix state: all keys off
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
+
+ return;
+}
+
+static uint8_t move_codes(uint8_t code) {
+ switch(code) {
+ case 0x10:
+ code += 0x5E;
+ break;
+ case 0x19:
+ code += 0x41;
+ break;
+ case 0x1C:
+ case 0x1D:
+ code += 0x38;
+ break;
+ case 0x20:
+ case 0x21:
+ case 0x22:
+ case 0x24:
+ code += 0x40;
+ break;
+ case 0x2E:
+ case 0x30:
+ case 0x32:
+ code += 0x44;
+ break;
+ case 0x35:
+ case 0x38:
+ code += 0x21;
+ break;
+ case 0x47:
+ case 0x48:
+ case 0x49:
+ case 0x4B:
+ case 0x4D:
+ case 0x4F:
+ case 0x50:
+ case 0x51:
+ case 0x52:
+ case 0x53:
+ code += 0x28;
+ break;
+ }
+ return code;
+}
+
+uint8_t matrix_scan(void)
+{
+
+ // scan code reading states
+ static enum {
+ INIT,
+ E0,
+ E0_2A,
+ E0_2A_E0,
+ E0_B7,
+ E0_B7_E0,
+
+ // print screen
+ E1,
+ E1_1D,
+ E1_1D_45,
+ E1_1D_45_E1,
+ E1_1D_45_E1_9D,
+ // pause
+ } state = INIT;
+
+
+ is_modified = false;
+
+ // 'pseudo break code' hack
+ if (matrix_is_on(ROW(PAUSE), COL(PAUSE))) {
+ matrix_break(PAUSE);
+ }
+
+ uint8_t code = xt_host_recv();
+ if (code) xprintf("%X\r\n", code);
+ switch (state) {
+ case INIT:
+ switch (code) {
+ case 0xE0:
+ state = E0;
+ break;
+ case 0xE1:
+ state = E1;
+ break;
+ case 0x00:
+ break;
+ default: // normal key make
+ if (code < 0x80) {
+ xprintf("make: %X\r\n", code);
+ matrix_make(code);
+ } else if (code > 0x80 && code < 0xFF) {
+ xprintf("break %X\r\n", code);
+ matrix_break(code - 0x80);
+ } else {
+ matrix_clear();
+ clear_keyboard();
+ xprintf("unexpected scan code at INIT: %02X\n", code);
+ }
+ state = INIT;
+ }
+ break;
+ case E0: // E0-Prefixed
+ switch (code) { //move these codes to unused places on the matrix
+ case 0x2A:
+ state = E0_2A;
+ break;
+ case 0xB7:
+ state = E0_B7;
+ break;
+ case 0x00:
+ state = INIT;
+ break;
+ default:
+ if (code < 0x80) {
+ matrix_make(move_codes(code));
+ } else if (code > 0x80 && code < 0xFF) {
+ matrix_break(move_codes(code - 0x80));
+ } else {
+ matrix_clear();
+ clear_keyboard();
+ xprintf("unexpected scan code at E0: %02X\n", code);
+ }
+ state = INIT;
+ }
+ break;
+ case E0_2A:
+ switch (code) {
+ case 0xE0:
+ state = E0_2A_E0;
+ break;
+ default:
+ state = INIT;
+ }
+ break;
+ case E0_2A_E0:
+ switch (code) {
+ case 0x37:
+ matrix_make(PRINT_SCREEN);
+ break;
+ default:
+ state = INIT;
+ }
+ break;
+ case E0_B7:
+ switch (code) {
+ case 0xE0:
+ state = E0_B7;
+ break;
+ default:
+ state = INIT;
+ }
+ break;
+ case E0_B7_E0:
+ switch (code) {
+ case 0xAA:
+ matrix_break(PRINT_SCREEN);
+ break;
+ default:
+ state = INIT;
+ }
+ break;
+ case E1:
+ switch (code) {
+ case 0x1D:
+ state = E1_1D;
+ break;
+ default:
+ state = INIT;
+ }
+ break;
+ case E1_1D:
+ switch (code) {
+ case 0x45:
+ state = E1_1D_45;
+ break;
+ default:
+ state = INIT;
+ }
+ break;
+ case E1_1D_45:
+ switch (code) {
+ case 0xE1:
+ state = E1_1D_45_E1;
+ break;
+ default:
+ state = INIT;
+ }
+ break;
+ case E1_1D_45_E1:
+ switch (code) {
+ case 0x9D:
+ state = E1_1D_45_E1_9D;
+ break;
+ default:
+ state = INIT;
+ }
+ break;
+ case E1_1D_45_E1_9D:
+ switch (code) {
+ case 0xC5:
+ matrix_make(PAUSE);
+ break;
+ default:
+ state = INIT;
+ }
+ break;
+ default:
+ state = INIT;
+ }
+
+ // TODO: request RESEND when error occurs?
+/*
+ if (PS2_IS_FAILED(ps2_error)) {
+ uint8_t ret = ps2_host_send(PS2_RESEND);
+ xprintf("Resend: %02X\n", ret);
+ }
+*/
+ return 1;
+}
+
+bool matrix_is_modified(void)
+{
+ return is_modified;
+}
+
+inline
+bool matrix_has_ghost(void)
+{
+#ifdef MATRIX_HAS_GHOST
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ if (matrix_has_ghost_in_row(i))
+ return true;
+ }
+#endif
+ return false;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+ return (matrix[row] & (1<<col));
+}
+
+inline
+uint8_t matrix_get_row(uint8_t row)
+{
+ return matrix[row];
+}
+
+void matrix_print(void)
+{
+ print("\nr/c 01234567\n");
+ for (uint8_t row = 0; row < matrix_rows(); row++) {
+ phex(row); print(": ");
+ pbin_reverse(matrix_get_row(row));
+#ifdef MATRIX_HAS_GHOST
+ if (matrix_has_ghost_in_row(row)) {
+ print(" <ghost");
+ }
+#endif
+ print("\n");
+ }
+}
+
+uint8_t matrix_key_count(void)
+{
+ uint8_t count = 0;
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ count += bitpop(matrix[i]);
+ }
+ return count;
+}
+
+#ifdef MATRIX_HAS_GHOST
+inline
+static bool matrix_has_ghost_in_row(uint8_t row)
+{
+ // no ghost exists in case less than 2 keys on
+ if (((matrix[row] - 1) & matrix[row]) == 0)
+ return false;
+
+ // ghost exists in case same state as other row
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+ if (i != row && (matrix[i] & matrix[row]) == matrix[row])
+ return true;
+ }
+ return false;
+}
+#endif
+
+
+inline
+static void matrix_make(uint8_t code)
+{
+ if (!matrix_is_on(ROW(code), COL(code))) {
+ matrix[ROW(code)] |= 1<<COL(code);
+ is_modified = true;
+ }
+}
+
+inline
+static void matrix_break(uint8_t code)
+{
+ if (matrix_is_on(ROW(code), COL(code))) {
+ matrix[ROW(code)] &= ~(1<<COL(code));
+ is_modified = true;
+ }
+}
+
+inline
+static void matrix_clear(void)
+{
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
+}
endif
+ifdef XT_USE_INT
+ SRC += protocol/xt_interrupt.c
+ SRC += protocol/xt_io_avr.c
+ OPT_DEFS += -DXT_USE_INT
+endif
+
+
ifdef SERIAL_MOUSE_MICROSOFT_ENABLE
SRC += $(PROTOCOL_DIR)/serial_mouse_microsoft.c
OPT_DEFS += -DSERIAL_MOUSE_ENABLE -DSERIAL_MOUSE_MICROSOFT \
--- /dev/null
+/*--------------------------------------------------------------------
+ * Ring buffer to store scan codes from keyboard
+ *------------------------------------------------------------------*/
+
+#ifndef PBUFF_H
+#define PBUFF_H
+
+#include "print.h"
+
+#define PBUF_SIZE 32
+static uint16_t pbuf[PBUF_SIZE];
+static uint16_t pbuf_head = 0;
+static uint16_t pbuf_tail = 0;
+static inline void pbuf_enqueue(uint16_t data)
+{
+ uint8_t sreg = SREG;
+ cli();
+ uint16_t next = (pbuf_head + 1) % PBUF_SIZE;
+ if (next != pbuf_tail) {
+ pbuf[pbuf_head] = data;
+ pbuf_head = next;
+ } else {
+ print("pbuf: full\n");
+ }
+ SREG = sreg;
+}
+static inline uint16_t pbuf_dequeue(void)
+{
+ uint16_t val = 0;
+
+ uint8_t sreg = SREG;
+ cli();
+ if (pbuf_head != pbuf_tail) {
+ val = pbuf[pbuf_tail];
+ pbuf_tail = (pbuf_tail + 1) % PBUF_SIZE;
+ }
+ SREG = sreg;
+
+ return val;
+}
+static inline bool pbuf_has_data(void)
+{
+ uint8_t sreg = SREG;
+ cli();
+ bool has_data = (pbuf_head != pbuf_tail);
+ SREG = sreg;
+ return has_data;
+}
+static inline void pbuf_clear(void)
+{
+ uint8_t sreg = SREG;
+ cli();
+ pbuf_head = pbuf_tail = 0;
+ SREG = sreg;
+}
+
+#endif
#include <stdbool.h>
#include <avr/interrupt.h>
#include <util/delay.h>
+#include "pbuff.h"
#include "ps2.h"
#include "ps2_io.h"
#include "print.h"
uint8_t ps2_error = PS2_ERR_NONE;
-
-static inline uint8_t pbuf_dequeue(void);
-static inline void pbuf_enqueue(uint8_t data);
-static inline bool pbuf_has_data(void);
-static inline void pbuf_clear(void);
-
-
void ps2_host_init(void)
{
idle();
ps2_host_send(0xED);
ps2_host_send(led);
}
-
-
-/*--------------------------------------------------------------------
- * Ring buffer to store scan codes from keyboard
- *------------------------------------------------------------------*/
-#define PBUF_SIZE 32
-static uint8_t pbuf[PBUF_SIZE];
-static uint8_t pbuf_head = 0;
-static uint8_t pbuf_tail = 0;
-static inline void pbuf_enqueue(uint8_t data)
-{
- uint8_t sreg = SREG;
- cli();
- uint8_t next = (pbuf_head + 1) % PBUF_SIZE;
- if (next != pbuf_tail) {
- pbuf[pbuf_head] = data;
- pbuf_head = next;
- } else {
- print("pbuf: full\n");
- }
- SREG = sreg;
-}
-static inline uint8_t pbuf_dequeue(void)
-{
- uint8_t val = 0;
-
- uint8_t sreg = SREG;
- cli();
- if (pbuf_head != pbuf_tail) {
- val = pbuf[pbuf_tail];
- pbuf_tail = (pbuf_tail + 1) % PBUF_SIZE;
- }
- SREG = sreg;
-
- return val;
-}
-static inline bool pbuf_has_data(void)
-{
- uint8_t sreg = SREG;
- cli();
- bool has_data = (pbuf_head != pbuf_tail);
- SREG = sreg;
- return has_data;
-}
-static inline void pbuf_clear(void)
-{
- uint8_t sreg = SREG;
- cli();
- pbuf_head = pbuf_tail = 0;
- SREG = sreg;
-}
-
--- /dev/null
+/*
+Copyright 2010,2011,2012,2013 Jun WAKO <wakojun@gmail.com>
+Copyright 2016 Ethan Apodaca <papodaca@gmail.com>
+
+This software is licensed with a Modified BSD License.
+All of this is supposed to be Free Software, Open Source, DFSG-free,
+GPL-compatible, and OK to use in both free and proprietary applications.
+Additions and corrections to this file are welcome.
+
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in
+ the documentation and/or other materials provided with the
+ distribution.
+
+* Neither the name of the copyright holders nor the names of
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef XT_H
+#define XT_H
+
+#include <stdbool.h>
+#include "wait.h"
+#include "xt_io.h"
+#include "print.h"
+
+void xt_host_init(void);
+uint8_t xt_host_recv(void);
+
+
+/*--------------------------------------------------------------------
+ * static functions
+ *------------------------------------------------------------------*/
+static inline uint16_t wait_clock_lo(uint16_t us)
+{
+ while (clock_in() && us) { asm(""); wait_us(1); us--; }
+ return us;
+}
+static inline uint16_t wait_clock_hi(uint16_t us)
+{
+ while (!clock_in() && us) { asm(""); wait_us(1); us--; }
+ return us;
+}
+static inline uint16_t wait_data_lo(uint16_t us)
+{
+ while (data_in() && us) { asm(""); wait_us(1); us--; }
+ return us;
+}
+static inline uint16_t wait_data_hi(uint16_t us)
+{
+ while (!data_in() && us) { asm(""); wait_us(1); us--; }
+ return us;
+}
+
+#endif
--- /dev/null
+/*
+Copyright 2010,2011,2012,2013 Jun WAKO <wakojun@gmail.com>
+
+This software is licensed with a Modified BSD License.
+All of this is supposed to be Free Software, Open Source, DFSG-free,
+GPL-compatible, and OK to use in both free and proprietary applications.
+Additions and corrections to this file are welcome.
+
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in
+ the documentation and/or other materials provided with the
+ distribution.
+
+* Neither the name of the copyright holders nor the names of
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*
+ * PS/2 protocol Pin interrupt version
+ */
+
+#include <stdbool.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include "pbuff.h"
+#include "xt.h"
+#include "xt_io.h"
+#include "wait.h"
+#include "print.h"
+
+void xt_host_init(void)
+{
+ XT_INT_INIT();
+ XT_INT_ON();
+}
+
+/* get data received by interrupt */
+uint8_t xt_host_recv(void)
+{
+ if (pbuf_has_data()) {
+ return pbuf_dequeue();
+ } else {
+ return 0;
+ }
+}
+
+ISR(XT_INT_VECT)
+{
+ static enum {
+ INIT,
+ BIT0, BIT1, BIT2, BIT3, BIT4, BIT5, BIT6, BIT7,
+ STOP,
+ } state = INIT;
+ static uint8_t data = 0;
+ // wait for clock falling edge
+ if(state != INIT)
+ wait_clock_lo(70);
+
+ switch (state) {
+ case INIT:
+ if (data_in())
+ state++;
+ break;
+ case BIT0:
+ case BIT1:
+ case BIT2:
+ case BIT3:
+ case BIT4:
+ case BIT5:
+ case BIT6:
+ case BIT7:
+ state++;
+ data >>= 1;
+ if (data_in()) {
+ data |= 0x80;
+ }
+ break;
+ case STOP:
+ if (!data_in())
+ goto DONE;
+ pbuf_enqueue(data);
+ goto DONE;
+ break;
+ default:
+ goto DONE;
+ }
+ goto RETURN;
+DONE:
+ state = INIT;
+ data = 0;
+RETURN:
+ return;
+}
--- /dev/null
+#ifndef XT_IO_H
+#define XT_IO_H
+
+bool clock_in(void);
+bool data_in(void);
+
+#endif
--- /dev/null
+#include <stdbool.h>
+#include <avr/io.h>
+#include <util/delay.h>
+
+/* Check port settings for clock and data line */
+#if !(defined(XT_CLOCK_PORT) && \
+ defined(XT_CLOCK_PIN) && \
+ defined(XT_CLOCK_DDR) && \
+ defined(XT_CLOCK_BIT))
+# error "XT clock port setting is required in config.h"
+#endif
+
+#if !(defined(XT_DATA_PORT) && \
+ defined(XT_DATA_PIN) && \
+ defined(XT_DATA_DDR) && \
+ defined(XT_DATA_BIT))
+# error "XT data port setting is required in config.h"
+#endif
+
+bool clock_in(void)
+{
+ XT_CLOCK_DDR &= ~(1<<XT_CLOCK_BIT);
+ XT_CLOCK_PORT |= (1<<XT_CLOCK_BIT);
+ _delay_us(1);
+ return XT_CLOCK_PIN&(1<<XT_CLOCK_BIT);
+}
+
+bool data_in(void)
+{
+ XT_DATA_DDR &= ~(1<<XT_DATA_BIT);
+ XT_DATA_PORT |= (1<<XT_DATA_BIT);
+ _delay_us(1);
+ return XT_DATA_PIN&(1<<XT_DATA_BIT);
+}