Move converter specific tmk_core protocols (#14743)

9 files changed, 1552 insertions, 2 deletions

diff --git a/keyboards/converter/adb_usb/adb.c b/keyboards/converter/adb_usb/adb.c
new file mode 100644
index 0000000000..28f14c9fe8
--- /dev/null
+++ b/keyboards/converter/adb_usb/adb.c
@@ -0,0 +1,531 @@
+/*
+Copyright 2011-19 Jun WAKO <wakojun@gmail.com>
+Copyright 2013 Shay Green <gblargg@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.
+*/
+
+#include <stdbool.h>
+#include <util/delay.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include "adb.h"
+#include "print.h"
+
+// GCC doesn't inline functions normally
+#define data_lo() (ADB_DDR |= (1 << ADB_DATA_BIT))
+#define data_hi() (ADB_DDR &= ~(1 << ADB_DATA_BIT))
+#define data_in() (ADB_PIN & (1 << ADB_DATA_BIT))
+
+#ifdef ADB_PSW_BIT
+static inline void psw_lo(void);
+static inline void psw_hi(void);
+static inline bool psw_in(void);
+#endif
+
+static inline void     attention(void);
+static inline void     place_bit0(void);
+static inline void     place_bit1(void);
+static inline void     send_byte(uint8_t data);
+static inline uint16_t wait_data_lo(uint16_t us);
+static inline uint16_t wait_data_hi(uint16_t us);
+
+void adb_host_init(void) {
+    ADB_PORT &= ~(1 << ADB_DATA_BIT);
+    data_hi();
+#ifdef ADB_PSW_BIT
+    psw_hi();
+#endif
+}
+
+#ifdef ADB_PSW_BIT
+bool adb_host_psw(void) { return psw_in(); }
+#endif
+
+/*
+ * Don't call this in a row without the delay, otherwise it makes some of poor controllers
+ * overloaded and misses strokes. Recommended interval is 12ms.
+ *
+ * Thanks a lot, blargg!
+ * <http://geekhack.org/index.php?topic=14290.msg1068919#msg1068919>
+ * <http://geekhack.org/index.php?topic=14290.msg1070139#msg1070139>
+ */
+uint16_t adb_host_kbd_recv(void) { return adb_host_talk(ADB_ADDR_KEYBOARD, ADB_REG_0); }
+
+#ifdef ADB_MOUSE_ENABLE
+uint16_t adb_host_mouse_recv(void) { return adb_host_talk(ADB_ADDR_MOUSE, ADB_REG_0); }
+#endif
+
+// This sends Talk command to read data from register and returns length of the data.
+uint8_t adb_host_talk_buf(uint8_t addr, uint8_t reg, uint8_t *buf, uint8_t len) {
+    for (int8_t i = 0; i < len; i++) buf[i] = 0;
+
+    cli();
+    attention();
+    send_byte((addr << 4) | ADB_CMD_TALK | reg);
+    place_bit0();  // Stopbit(0)
+    // TODO: Service Request(Srq):
+    // Device holds low part of comannd stopbit for 140-260us
+    //
+    // Command:
+    // ......._     ______________________    ___ ............_     -------
+    //         |   |                      |  |   |             |   |
+    // Command |   |                      |  |   | Data bytes  |   |
+    // ........|___|  |     140-260       |__|   |_............|___|
+    //         |stop0 | Tlt Stop-to-Start |start1|             |stop0 |
+    //
+    // Command without data:
+    // ......._     __________________________
+    //         |   |
+    // Command |   |
+    // ........|___|  |     140-260       |
+    //         |stop0 | Tlt Stop-to-Start |
+    //
+    // Service Request:
+    // ......._                     ______    ___ ............_     -------
+    //         |     140-260       |      |  |   |             |   |
+    // Command |  Service Request  |      |  |   | Data bytes  |   |
+    // ........|___________________|      |__|   |_............|___|
+    //         |stop0 |                   |start1|             |stop0 |
+    // ......._                     __________
+    //         |     140-260       |
+    // Command |  Service Request  |
+    // ........|___________________|
+    //         |stop0 |
+    // This can be happened?
+    // ......._     ______________________    ___ ............_                   -----
+    //         |   |                      |  |   |             |    140-260      |
+    // Command |   |                      |  |   | Data bytes  | Service Request |
+    // ........|___|  |     140-260       |__|   |_............|_________________|
+    //         |stop0 | Tlt Stop-to-Start |start1|             |stop0 |
+    //
+    // "Service requests are issued by the devices during a very specific time at the
+    // end of the reception of the command packet.
+    // If a device in need of service issues a service request, it must do so within
+    // the 65 µs of the Stop Bit’s low time and maintain the line low for a total of 300 µs."
+    //
+    // "A device sends a Service Request signal by holding the bus low during the low
+    // portion of the stop bit of any command or data transaction. The device must lengthen
+    // the stop by a minimum of 140 J.lS beyond its normal duration, as shown in Figure 8-15."
+    // http://ww1.microchip.com/downloads/en/AppNotes/00591b.pdf
+    if (!wait_data_hi(500)) {  // Service Request(310us Adjustable Keyboard): just ignored
+        xprintf("R");
+        sei();
+        return 0;
+    }
+    if (!wait_data_lo(500)) {  // Tlt/Stop to Start(140-260us)
+        sei();
+        return 0;  // No data from device(not error);
+    }
+
+    // start bit(1)
+    if (!wait_data_hi(40)) {
+        xprintf("S");
+        sei();
+        return 0;
+    }
+    if (!wait_data_lo(100)) {
+        xprintf("s");
+        sei();
+        return 0;
+    }
+
+    uint8_t n = 0;  // bit count
+    do {
+        //
+        // |<- bit_cell_max(130) ->|
+        // |        |<-   lo     ->|
+        // |        |       |<-hi->|
+        //           _______
+        // |        |       |
+        // | 130-lo | lo-hi |
+        // |________|       |
+        //
+        uint8_t lo = (uint8_t)wait_data_hi(130);
+        if (!lo) goto error;  // no more bit or after stop bit
+
+        uint8_t hi = (uint8_t)wait_data_lo(lo);
+        if (!hi) goto error;  // stop bit extedned by Srq?
+
+        if (n / 8 >= len) continue;  // can't store in buf
+
+        buf[n / 8] <<= 1;
+        if ((130 - lo) < (lo - hi)) {
+            buf[n / 8] |= 1;
+        }
+    } while (++n);
+
+error:
+    sei();
+    return n / 8;
+}
+
+uint16_t adb_host_talk(uint8_t addr, uint8_t reg) {
+    uint8_t len;
+    uint8_t buf[8];
+    len = adb_host_talk_buf(addr, reg, buf, 8);
+    if (len != 2) return 0;
+    return (buf[0] << 8 | buf[1]);
+}
+
+void adb_host_listen_buf(uint8_t addr, uint8_t reg, uint8_t *buf, uint8_t len) {
+    cli();
+    attention();
+    send_byte((addr << 4) | ADB_CMD_LISTEN | reg);
+    place_bit0();  // Stopbit(0)
+    // TODO: Service Request
+    _delay_us(200);  // Tlt/Stop to Start
+    place_bit1();    // Startbit(1)
+    for (int8_t i = 0; i < len; i++) {
+        send_byte(buf[i]);
+        // xprintf("%02X ", buf[i]);
+    }
+    place_bit0();  // Stopbit(0);
+    sei();
+}
+
+void adb_host_listen(uint8_t addr, uint8_t reg, uint8_t data_h, uint8_t data_l) {
+    uint8_t buf[2] = {data_h, data_l};
+    adb_host_listen_buf(addr, reg, buf, 2);
+}
+
+void adb_host_flush(uint8_t addr) {
+    cli();
+    attention();
+    send_byte((addr << 4) | ADB_CMD_FLUSH);
+    place_bit0();    // Stopbit(0)
+    _delay_us(200);  // Tlt/Stop to Start
+    sei();
+}
+
+// send state of LEDs
+void adb_host_kbd_led(uint8_t led) {
+    // Listen Register2
+    //  upper byte: not used
+    //  lower byte: bit2=ScrollLock, bit1=CapsLock, bit0=NumLock
+    adb_host_listen(ADB_ADDR_KEYBOARD, ADB_REG_2, 0, led & 0x07);
+}
+
+#ifdef ADB_PSW_BIT
+static inline void psw_lo() {
+    ADB_DDR |= (1 << ADB_PSW_BIT);
+    ADB_PORT &= ~(1 << ADB_PSW_BIT);
+}
+static inline void psw_hi() {
+    ADB_PORT |= (1 << ADB_PSW_BIT);
+    ADB_DDR &= ~(1 << ADB_PSW_BIT);
+}
+static inline bool psw_in() {
+    ADB_PORT |= (1 << ADB_PSW_BIT);
+    ADB_DDR &= ~(1 << ADB_PSW_BIT);
+    return ADB_PIN & (1 << ADB_PSW_BIT);
+}
+#endif
+
+static inline void attention(void) {
+    data_lo();
+    _delay_us(800 - 35);  // bit1 holds lo for 35 more
+    place_bit1();
+}
+
+static inline void place_bit0(void) {
+    data_lo();
+    _delay_us(65);
+    data_hi();
+    _delay_us(35);
+}
+
+static inline void place_bit1(void) {
+    data_lo();
+    _delay_us(35);
+    data_hi();
+    _delay_us(65);
+}
+
+static inline void send_byte(uint8_t data) {
+    for (int i = 0; i < 8; i++) {
+        if (data & (0x80 >> i))
+            place_bit1();
+        else
+            place_bit0();
+    }
+}
+
+// These are carefully coded to take 6 cycles of overhead.
+// inline asm approach became too convoluted
+static inline uint16_t wait_data_lo(uint16_t us) {
+    do {
+        if (!data_in()) break;
+        _delay_us(1 - (6 * 1000000.0 / F_CPU));
+    } while (--us);
+    return us;
+}
+
+static inline uint16_t wait_data_hi(uint16_t us) {
+    do {
+        if (data_in()) break;
+        _delay_us(1 - (6 * 1000000.0 / F_CPU));
+    } while (--us);
+    return us;
+}
+
+/*
+ADB Protocol
+============
+
+Resources
+---------
+ADB - The Untold Story: Space Aliens Ate My Mouse
+    http://developer.apple.com/legacy/mac/library/#technotes/hw/hw_01.html
+ADB Manager
+    http://developer.apple.com/legacy/mac/library/documentation/mac/pdf/Devices/ADB_Manager.pdf
+    Service request(5-17)
+Apple IIgs Hardware Reference Second Edition [Chapter6 p121]
+    ftp://ftp.apple.asimov.net/pub/apple_II/documentation/Apple%20IIgs%20Hardware%20Reference.pdf
+ADB Keycode
+    http://72.0.193.250/Documentation/macppc/adbkeycodes/
+    http://m0115.web.fc2.com/m0115.jpg
+    [Inside Macintosh volume V, pages 191-192]
+    http://www.opensource.apple.com/source/IOHIDFamily/IOHIDFamily-421.18.3/IOHIDFamily/Cosmo_USB2ADB.c
+ADB Signaling
+    http://kbdbabel.sourceforge.net/doc/kbd_signaling_pcxt_ps2_adb.pdf
+ADB Overview & History
+    http://en.wikipedia.org/wiki/Apple_Desktop_Bus
+Microchip Application Note: ADB device(with code for PIC16C)
+    http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en011062
+AVR ATtiny2131 ADB to PS/2 converter(Japanese)
+    http://hp.vector.co.jp/authors/VA000177/html/KeyBoardA5DEA5CBA5A2II.html
+
+
+Pinouts
+-------
+    ADB female socket from the front:
+    __________
+    |        | <--- top
+    | 4o  o3 |
+    |2o    o1|
+    |   ==   |
+    |________| <--- bottom
+      |    |   <--- 4pins
+
+
+    ADB female socket from bottom:
+
+    ========== <--- front
+    |        |
+    |        |
+    |2o    o1|
+    |4o    o3|
+    ---------- <--- back
+
+    1: Data
+    2: Power SW(low when press Power key)
+    3: Vcc(5V)
+    4: GND
+
+
+Commands
+--------
+    ADB command is 1byte and consists of 4bit-address, 2bit-command
+    type and 2bit-register. The commands are always sent by Host.
+
+    Command format:
+    7 6 5 4 3 2 1 0
+    | | | |------------ address
+            | |-------- command type
+                | |---- register
+
+    bits                commands
+    ------------------------------------------------------
+    - - - - 0 0 0 0     Send Reset(reset all devices)
+    A A A A 0 0 0 1     Flush(reset a device)
+    - - - - 0 0 1 0     Reserved
+    - - - - 0 0 1 1     Reserved
+    - - - - 0 1 - -     Reserved
+    A A A A 1 0 R R     Listen(write to a device)
+    A A A A 1 1 R R     Talk(read from a device)
+
+    The command to read keycodes from keyboard is 0x2C which
+    consist of keyboard address 2 and Talk against register 0.
+
+    Address:
+    2:  keyboard
+    3:  mice
+
+    Registers:
+    0: application(keyboard uses this to store its data.)
+    1: application
+    2: application(keyboard uses this for LEDs and state of modifiers)
+    3: status and command
+
+
+Communication
+-------------
+    This is a minimum information for keyboard communication.
+    See "Resources" for detail.
+
+    Signaling:
+
+    ~~~~____________~~||||||||||||__~~~~~_~~|||||||||||||||__~~~~
+
+        |800us     |  |7 Command 0|  |   |  |15-64  Data  0|Stopbit(0)
+        +Attention |              |  |   +Startbit(1)
+                   +Startbit(1)   |  +Tlt(140-260us)
+                                  +stopbit(0)
+
+    Bit cells:
+
+    bit0: ______~~~
+          65    :35us
+
+    bit1: ___~~~~~~
+          35 :65us
+
+    bit0 low time: 60-70% of bit cell(42-91us)
+    bit1 low time: 30-40% of bit cell(21-52us)
+    bit cell time: 70-130us
+    [from Apple IIgs Hardware Reference Second Edition]
+
+    Criterion for bit0/1:
+    After 55us if line is low/high then bit is 0/1.
+
+    Attention & start bit:
+    Host asserts low in 560-1040us then places start bit(1).
+
+    Tlt(Stop to Start):
+    Bus stays high in 140-260us then device places start bit(1).
+
+    Global reset:
+    Host asserts low in 2.8-5.2ms. All devices are forced to reset.
+
+    Service request from device(Srq):
+    Device can request to send at commad(Global only?) stop bit.
+    Requesting device keeps low for 140-260us at stop bit of command.
+
+
+Keyboard Data(Register0)
+    This 16bit data can contains two keycodes and two released flags.
+    First keycode is palced in upper byte. When one keyocode is sent,
+    lower byte is 0xFF.
+    Release flag is 1 when key is released.
+
+    1514 . . . . . 8 7 6 . . . . . 0
+     | | | | | | | | | +-+-+-+-+-+-+-   Keycode2
+     | | | | | | | | +---------------   Released2(1 when the key is released)
+     | +-+-+-+-+-+-+-----------------   Keycode1
+     +-------------------------------   Released1(1 when the key is released)
+
+    Keycodes:
+    Scancode consists of 7bit keycode and 1bit release flag.
+    Device can send two keycodes at once. If just one keycode is sent
+    keycode1 contains it and keyocode2 is 0xFF.
+
+    Power switch:
+    You can read the state from PSW line(active low) however
+    the switch has a special scancode 0x7F7F, so you can
+    also read from Data line. It uses 0xFFFF for release scancode.
+
+Keyboard LEDs & state of keys(Register2)
+    This register hold current state of three LEDs and nine keys.
+    The state of LEDs can be changed by sending Listen command.
+
+    1514 . . . . . . 7 6 5 . 3 2 1 0
+     | | | | | | | | | | | | | | | +-   LED1(NumLock)
+     | | | | | | | | | | | | | | +---   LED2(CapsLock)
+     | | | | | | | | | | | | | +-----   LED3(ScrollLock)
+     | | | | | | | | | | +-+-+-------   Reserved
+     | | | | | | | | | +-------------   ScrollLock
+     | | | | | | | | +---------------   NumLock
+     | | | | | | | +-----------------   Apple/Command
+     | | | | | | +-------------------   Option
+     | | | | | +---------------------   Shift
+     | | | | +-----------------------   Control
+     | | | +-------------------------   Reset/Power
+     | | +---------------------------   CapsLock
+     | +-----------------------------   Delete
+     +-------------------------------   Reserved
+
+Address, Handler ID and bits(Register3)
+    1514131211 . . 8 7 . . . . . . 0
+     | | | | | | | | | | | | | | | |
+     | | | | | | | | +-+-+-+-+-+-+-+-   Handler ID
+     | | | | +-+-+-+-----------------   Address
+     | | | +-------------------------   0
+     | | +---------------------------   Service request enable(1 = enabled)
+     | +-----------------------------   Exceptional event(alwyas 1 if not used)
+     +-------------------------------   0
+
+ADB Bit Cells
+    bit cell time: 70-130us
+    low part of bit0: 60-70% of bit cell
+    low part of bit1: 30-40% of bit cell
+
+       bit cell time         70us        130us
+       --------------------------------------------
+       low  part of bit0     42-49       78-91
+       high part of bit0     21-28       39-52
+       low  part of bit1     21-28       39-52
+       high part of bit1     42-49       78-91
+
+
+    bit0:
+       70us bit cell:
+         ____________~~~~~~
+         42-49        21-28
+
+       130us bit cell:
+         ____________~~~~~~
+         78-91        39-52
+
+    bit1:
+       70us bit cell:
+         ______~~~~~~~~~~~~
+         21-28        42-49
+
+       130us bit cell:
+         ______~~~~~~~~~~~~
+         39-52        78-91
+
+    [from Apple IIgs Hardware Reference Second Edition]
+
+Keyboard Handle ID
+    Apple Standard Keyboard M0116:      0x01
+    Apple Extended Keyboard M0115:      0x02
+    Apple Extended Keyboard II M3501:   0x02
+    Apple Adjustable Keybaord:          0x10
+
+    http://lxr.free-electrons.com/source/drivers/macintosh/adbhid.c?v=4.4#L802
+
+END_OF_ADB
+*/
diff --git a/keyboards/converter/adb_usb/adb.h b/keyboards/converter/adb_usb/adb.h
new file mode 100644
index 0000000000..fe8becc2d5
--- /dev/null
+++ b/keyboards/converter/adb_usb/adb.h
@@ -0,0 +1,106 @@
+/*
+Copyright 2011-19 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.
+*/
+
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#if !(defined(ADB_PORT) && defined(ADB_PIN) && defined(ADB_DDR) && defined(ADB_DATA_BIT))
+#    error "ADB port setting is required in config.h"
+#endif
+
+#define ADB_POWER 0x7F
+#define ADB_CAPS 0x39
+
+/* ADB commands */
+// Default Address
+#define ADB_ADDR_0 0
+#define ADB_ADDR_DONGLE 1
+#define ADB_ADDR_KEYBOARD 2
+#define ADB_ADDR_MOUSE 3
+#define ADB_ADDR_TABLET 4
+#define ADB_ADDR_APPLIANCE 7
+#define ADB_ADDR_8 8
+#define ADB_ADDR_9 9
+#define ADB_ADDR_10 10
+#define ADB_ADDR_11 11
+#define ADB_ADDR_12 12
+#define ADB_ADDR_13 13
+#define ADB_ADDR_14 14
+#define ADB_ADDR_15 15
+// for temporary purpose, do not use for polling
+#define ADB_ADDR_TMP 15
+#define ADB_ADDR_MOUSE_POLL 10
+// Command Type
+#define ADB_CMD_RESET 0
+#define ADB_CMD_FLUSH 1
+#define ADB_CMD_LISTEN 8
+#define ADB_CMD_TALK 12
+// Register
+#define ADB_REG_0 0
+#define ADB_REG_1 1
+#define ADB_REG_2 2
+#define ADB_REG_3 3
+
+/* ADB keyboard handler id */
+#define ADB_HANDLER_STD 0x01        /* IIGS, M0116 */
+#define ADB_HANDLER_AEK 0x02        /* M0115, M3501 */
+#define ADB_HANDLER_AEK_RMOD 0x03   /* M0115, M3501, alternate mode enableing right modifiers */
+#define ADB_HANDLER_STD_ISO 0x04    /* M0118, ISO swapping keys */
+#define ADB_HANDLER_AEK_ISO 0x05    /* M0115, M3501, ISO swapping keys */
+#define ADB_HANDLER_M1242_ANSI 0x10 /* Adjustable keyboard */
+#define ADB_HANDLER_CLASSIC1_MOUSE 0x01
+#define ADB_HANDLER_CLASSIC2_MOUSE 0x02
+#define ADB_HANDLER_EXTENDED_MOUSE 0x04
+#define ADB_HANDLER_TURBO_MOUSE 0x32
+
+// ADB host
+void     adb_host_init(void);
+bool     adb_host_psw(void);
+uint16_t adb_host_talk(uint8_t addr, uint8_t reg);
+uint8_t  adb_host_talk_buf(uint8_t addr, uint8_t reg, uint8_t *buf, uint8_t len);
+void     adb_host_listen(uint8_t addr, uint8_t reg, uint8_t data_h, uint8_t data_l);
+void     adb_host_listen_buf(uint8_t addr, uint8_t reg, uint8_t *buf, uint8_t len);
+void     adb_host_flush(uint8_t addr);
+void     adb_host_kbd_led(uint8_t led);
+uint16_t adb_host_kbd_recv(void);
+uint16_t adb_host_mouse_recv(void);
+
+// ADB Mouse
+void adb_mouse_task(void);
+void adb_mouse_init(void);
diff --git a/keyboards/converter/adb_usb/matrix.c b/keyboards/converter/adb_usb/matrix.c
index 9e5399de5d..e6a4921960 100644
--- a/keyboards/converter/adb_usb/matrix.c
+++ b/keyboards/converter/adb_usb/matrix.c
@@ -31,6 +31,10 @@ Ported to QMK by Peter Roe <pete@13bit.me>
 #include "led.h"
 #include "timer.h"
 
+#ifndef ADB_MOUSE_MAXACC
+#    define ADB_MOUSE_MAXACC 8
+#endif
+
 static bool is_iso_layout = false;
 
 // matrix state buffer(1:on, 0:off)
@@ -84,6 +88,10 @@ void matrix_init(void)
 
 static report_mouse_t mouse_report = {};
 
+void housekeeping_task_kb(void) {
+    adb_mouse_task();
+}
+
 void adb_mouse_task(void)
 {
     uint16_t codes;
diff --git a/keyboards/converter/adb_usb/rules.mk b/keyboards/converter/adb_usb/rules.mk
index 7c861e2702..8f4649f556 100644
--- a/keyboards/converter/adb_usb/rules.mk
+++ b/keyboards/converter/adb_usb/rules.mk
@@ -19,3 +19,6 @@ BACKLIGHT_ENABLE = no
 CUSTOM_MATRIX    = yes
 
 SRC = matrix.c adb.c led.c
+
+# ADB_MOUSE_ENABLE
+# OPT_DEFS += -DADB_MOUSE_ENABLE -DMOUSE_ENABLE
diff --git a/keyboards/converter/m0110_usb/m0110.c b/keyboards/converter/m0110_usb/m0110.c
new file mode 100644
index 0000000000..64f2fa50ab
--- /dev/null
+++ b/keyboards/converter/m0110_usb/m0110.c
@@ -0,0 +1,583 @@
+/*
+Copyright 2011,2012 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.
+*/
+/* M0110A Support was contributed by skagon@github */
+
+#include <stdbool.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include "m0110.h"
+#include "debug.h"
+
+static inline uint8_t  raw2scan(uint8_t raw);
+static inline uint8_t  inquiry(void);
+static inline uint8_t  instant(void);
+static inline void     clock_lo(void);
+static inline void     clock_hi(void);
+static inline bool     clock_in(void);
+static inline void     data_lo(void);
+static inline void     data_hi(void);
+static inline bool     data_in(void);
+static inline uint16_t wait_clock_lo(uint16_t us);
+static inline uint16_t wait_clock_hi(uint16_t us);
+static inline uint16_t wait_data_lo(uint16_t us);
+static inline uint16_t wait_data_hi(uint16_t us);
+static inline void     idle(void);
+static inline void     request(void);
+
+#define WAIT_US(stat, us, err)  \
+    do {                        \
+        if (!wait_##stat(us)) { \
+            m0110_error = err;  \
+            goto ERROR;         \
+        }                       \
+    } while (0)
+
+#define WAIT_MS(stat, ms, err)       \
+    do {                             \
+        uint16_t _ms = ms;           \
+        while (_ms) {                \
+            if (wait_##stat(1000)) { \
+                break;               \
+            }                        \
+            _ms--;                   \
+        }                            \
+        if (_ms == 0) {              \
+            m0110_error = err;       \
+            goto ERROR;              \
+        }                            \
+    } while (0)
+
+#define KEY(raw) ((raw)&0x7f)
+#define IS_BREAK(raw) (((raw)&0x80) == 0x80)
+
+uint8_t m0110_error = 0;
+
+void m0110_init(void) {
+    idle();
+    _delay_ms(1000);
+
+    /* Not needed to initialize in fact.
+        uint8_t data;
+        m0110_send(M0110_MODEL);
+        data = m0110_recv();
+        print("m0110_init model: "); print_hex8(data); print("\n");
+
+        m0110_send(M0110_TEST);
+        data = m0110_recv();
+        print("m0110_init test: "); print_hex8(data); print("\n");
+    */
+}
+
+uint8_t m0110_send(uint8_t data) {
+    m0110_error = 0;
+
+    request();
+    WAIT_MS(clock_lo, 250, 1);  // keyboard may block long time
+    for (uint8_t bit = 0x80; bit; bit >>= 1) {
+        WAIT_US(clock_lo, 250, 3);
+        if (data & bit) {
+            data_hi();
+        } else {
+            data_lo();
+        }
+        WAIT_US(clock_hi, 200, 4);
+    }
+    _delay_us(100);  // hold last bit for 80us
+    idle();
+    return 1;
+ERROR:
+    print("m0110_send err: ");
+    print_hex8(m0110_error);
+    print("\n");
+    _delay_ms(500);
+    idle();
+    return 0;
+}
+
+uint8_t m0110_recv(void) {
+    uint8_t data = 0;
+    m0110_error  = 0;
+
+    WAIT_MS(clock_lo, 250, 1);  // keyboard may block long time
+    for (uint8_t i = 0; i < 8; i++) {
+        data <<= 1;
+        WAIT_US(clock_lo, 200, 2);
+        WAIT_US(clock_hi, 200, 3);
+        if (data_in()) {
+            data |= 1;
+        }
+    }
+    idle();
+    return data;
+ERROR:
+    print("m0110_recv err: ");
+    print_hex8(m0110_error);
+    print("\n");
+    _delay_ms(500);
+    idle();
+    return 0xFF;
+}
+
+/*
+Handling for exceptional case of key combinations for M0110A
+
+Shift and Calc/Arrow key could be operated simultaneously:
+
+    Case Shift   Arrow   Events          Interpret
+    -------------------------------------------------------------------
+    1    Down    Down    71, 79, DD      Calc(d)*a *b
+    2    Down    Up      71, 79, UU      Arrow&Calc(u)*a
+    3    Up      Down    F1, 79, DD      Shift(u) *c
+    4    Up      Up      F1, 79, UU      Shift(u) and Arrow&Calc(u)*a
+
+    Case Shift   Calc    Events          Interpret
+    -------------------------------------------------------------------
+    5(1) Down    Down    71, 71, 79, DD  Shift(d) and Cacl(d)
+    6(2) Down    Up      F1, 71, 79, UU  Shift(u) and Arrow&Calc(u)*a
+    7(1) Up      Down    F1, 71, 79, DD  Shift(u) and Calc(d)
+    8(4) Up      Up      F1, F1, 79, UU  Shift(ux2) and Arrow&Calc(u)*a
+
+During Calc key is hold:
+    Case Shift   Arrow   Events          Interpret
+    -------------------------------------------------------------------
+    A(3) ----    Down    F1, 79, DD      Shift(u) *c
+    B    ----    Up      79, UU          Arrow&Calc(u)*a
+    C    Down    ----    F1, 71          Shift(u) and Shift(d)
+    D    Up      ----    F1              Shift(u)
+    E    Hold    Down    79, DD          Normal
+    F    Hold    Up      79, UU          Arrow&Calc(u)*a
+    G(1) Down    Down    F1, 71, 79, DD  Shift(u)*b and Calc(d)*a
+    H(2) Down    Up      F1, 71, 79, UU  Shift(u) and Arrow&Calc(u)*a
+    I(3) Up      Down    F1, F1, 79, DD  Shift(ux2) *c
+    J(4) Up      Up      F1, 79, UU      Shift(u) and Arrow&Calc(u)*a
+
+    Case Shift   Calc    Events          Interpret
+    -------------------------------------------------------------------
+    K(1) ----    Down    71, 79, DD      Calc(d)*a
+    L(4) ----    Up      F1, 79, UU      Shift(u) and Arrow&Calc(u)*a
+    M(1) Hold    Down    71, 79, DD      Calc(d)*a
+    N    Hold    Up      79, UU          Arrow&Calc(u)*a
+
+    Where DD/UU indicates part of Keypad Down/Up event.
+    *a: Impossible to distinguish btween Arrow and Calc event.
+    *b: Shift(d) event is ignored.
+    *c: Arrow/Calc(d) event is ignored.
+*/
+uint8_t m0110_recv_key(void) {
+    static uint8_t keybuf  = 0x00;
+    static uint8_t keybuf2 = 0x00;
+    static uint8_t rawbuf  = 0x00;
+    uint8_t        raw, raw2, raw3;
+
+    if (keybuf) {
+        raw    = keybuf;
+        keybuf = 0x00;
+        return raw;
+    }
+    if (keybuf2) {
+        raw     = keybuf2;
+        keybuf2 = 0x00;
+        return raw;
+    }
+
+    if (rawbuf) {
+        raw    = rawbuf;
+        rawbuf = 0x00;
+    } else {
+        raw = instant();  // Use INSTANT for better response. Should be INQUIRY ?
+    }
+    switch (KEY(raw)) {
+        case M0110_KEYPAD:
+            raw2 = instant();
+            switch (KEY(raw2)) {
+                case M0110_ARROW_UP:
+                case M0110_ARROW_DOWN:
+                case M0110_ARROW_LEFT:
+                case M0110_ARROW_RIGHT:
+                    if (IS_BREAK(raw2)) {
+                        // Case B,F,N:
+                        keybuf = (raw2scan(raw2) | M0110_CALC_OFFSET);  // Calc(u)
+                        return (raw2scan(raw2) | M0110_KEYPAD_OFFSET);  // Arrow(u)
+                    }
+                    break;
+            }
+            // Keypad or Arrow
+            return (raw2scan(raw2) | M0110_KEYPAD_OFFSET);
+            break;
+        case M0110_SHIFT:
+            raw2 = instant();
+            switch (KEY(raw2)) {
+                case M0110_SHIFT:
+                    // Case: 5-8,C,G,H
+                    rawbuf = raw2;
+                    return raw2scan(raw);  // Shift(d/u)
+                    break;
+                case M0110_KEYPAD:
+                    // Shift + Arrow, Calc, or etc.
+                    raw3 = instant();
+                    switch (KEY(raw3)) {
+                        case M0110_ARROW_UP:
+                        case M0110_ARROW_DOWN:
+                        case M0110_ARROW_LEFT:
+                        case M0110_ARROW_RIGHT:
+                            if (IS_BREAK(raw)) {
+                                if (IS_BREAK(raw3)) {
+                                    // Case 4:
+                                    print("(4)\n");
+                                    keybuf2 = raw2scan(raw);                         // Shift(u)
+                                    keybuf  = (raw2scan(raw3) | M0110_CALC_OFFSET);  // Calc(u)
+                                    return (raw2scan(raw3) | M0110_KEYPAD_OFFSET);   // Arrow(u)
+                                } else {
+                                    // Case 3:
+                                    print("(3)\n");
+                                    return (raw2scan(raw));  // Shift(u)
+                                }
+                            } else {
+                                if (IS_BREAK(raw3)) {
+                                    // Case 2:
+                                    print("(2)\n");
+                                    keybuf = (raw2scan(raw3) | M0110_CALC_OFFSET);  // Calc(u)
+                                    return (raw2scan(raw3) | M0110_KEYPAD_OFFSET);  // Arrow(u)
+                                } else {
+                                    // Case 1:
+                                    print("(1)\n");
+                                    return (raw2scan(raw3) | M0110_CALC_OFFSET);  // Calc(d)
+                                }
+                            }
+                            break;
+                        default:
+                            // Shift + Keypad
+                            keybuf = (raw2scan(raw3) | M0110_KEYPAD_OFFSET);
+                            return raw2scan(raw);  // Shift(d/u)
+                            break;
+                    }
+                    break;
+                default:
+                    // Shift + Normal keys
+                    keybuf = raw2scan(raw2);
+                    return raw2scan(raw);  // Shift(d/u)
+                    break;
+            }
+            break;
+        default:
+            // Normal keys
+            return raw2scan(raw);
+            break;
+    }
+}
+
+static inline uint8_t raw2scan(uint8_t raw) { return (raw == M0110_NULL) ? M0110_NULL : ((raw == M0110_ERROR) ? M0110_ERROR : (((raw & 0x80) | ((raw & 0x7F) >> 1)))); }
+
+static inline uint8_t inquiry(void) {
+    m0110_send(M0110_INQUIRY);
+    return m0110_recv();
+}
+
+static inline uint8_t instant(void) {
+    m0110_send(M0110_INSTANT);
+    uint8_t data = m0110_recv();
+    if (data != M0110_NULL) {
+        debug_hex(data);
+        debug(" ");
+    }
+    return data;
+}
+
+static inline void clock_lo() {
+    M0110_CLOCK_PORT &= ~(1 << M0110_CLOCK_BIT);
+    M0110_CLOCK_DDR |= (1 << M0110_CLOCK_BIT);
+}
+static inline void clock_hi() {
+    /* input with pull up */
+    M0110_CLOCK_DDR &= ~(1 << M0110_CLOCK_BIT);
+    M0110_CLOCK_PORT |= (1 << M0110_CLOCK_BIT);
+}
+static inline bool clock_in() {
+    M0110_CLOCK_DDR &= ~(1 << M0110_CLOCK_BIT);
+    M0110_CLOCK_PORT |= (1 << M0110_CLOCK_BIT);
+    _delay_us(1);
+    return M0110_CLOCK_PIN & (1 << M0110_CLOCK_BIT);
+}
+static inline void data_lo() {
+    M0110_DATA_PORT &= ~(1 << M0110_DATA_BIT);
+    M0110_DATA_DDR |= (1 << M0110_DATA_BIT);
+}
+static inline void data_hi() {
+    /* input with pull up */
+    M0110_DATA_DDR &= ~(1 << M0110_DATA_BIT);
+    M0110_DATA_PORT |= (1 << M0110_DATA_BIT);
+}
+static inline bool data_in() {
+    M0110_DATA_DDR &= ~(1 << M0110_DATA_BIT);
+    M0110_DATA_PORT |= (1 << M0110_DATA_BIT);
+    _delay_us(1);
+    return M0110_DATA_PIN & (1 << M0110_DATA_BIT);
+}
+
+static inline uint16_t wait_clock_lo(uint16_t us) {
+    while (clock_in() && us) {
+        asm("");
+        _delay_us(1);
+        us--;
+    }
+    return us;
+}
+static inline uint16_t wait_clock_hi(uint16_t us) {
+    while (!clock_in() && us) {
+        asm("");
+        _delay_us(1);
+        us--;
+    }
+    return us;
+}
+static inline uint16_t wait_data_lo(uint16_t us) {
+    while (data_in() && us) {
+        asm("");
+        _delay_us(1);
+        us--;
+    }
+    return us;
+}
+static inline uint16_t wait_data_hi(uint16_t us) {
+    while (!data_in() && us) {
+        asm("");
+        _delay_us(1);
+        us--;
+    }
+    return us;
+}
+
+static inline void idle(void) {
+    clock_hi();
+    data_hi();
+}
+
+static inline void request(void) {
+    clock_hi();
+    data_lo();
+}
+
+/*
+Primitive M0110 Library for AVR
+==============================
+
+
+Signaling
+---------
+CLOCK is always from KEYBOARD. DATA are sent with MSB first.
+
+1) IDLE: both lines are high.
+    CLOCK ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    DATA  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+2) KEYBOARD->HOST: HOST reads bit on rising edge.
+    CLOCK ~~~~~~~~~~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~~~~~~~~~
+    DATA  ~~~~~~~~~~~~X777777X666666X555555X444444X333333X222222X111111X000000X~~~~~~~
+                      <--> 160us(clock low)
+                         <---> 180us(clock high)
+
+3) HOST->KEYBOARD: HOST asserts bit on falling edge.
+    CLOCK ~~~~~~~~~~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~|__|~~~~~~~~~~~
+    DATA  ~~~~~~|_____X777777X666666X555555X444444X333333X222222X111111X000000X~~~~~~~
+                <----> 840us(request to send by host)                     <---> 80us(hold DATA)
+                      <--> 180us(clock low)
+                         <---> 220us(clock high)
+
+
+Protocol
+--------
+COMMAND:
+    Inquiry     0x10    get key event with block
+    Instant     0x12    get key event
+    Model       0x14    get model number(M0110 responds with 0x09)
+                        bit 7   1 if another device connected(used when keypad exists?)
+                        bit4-6  next device model number
+                        bit1-3  keyboard model number
+                        bit 0   always 1
+    Test        0x16    test(ACK:0x7D/NAK:0x77)
+
+KEY EVENT:
+    bit 7       key state(0:press 1:release)
+    bit 6-1     scan code(see below)
+    bit 0       always 1
+    To get scan code use this: ((bits&(1<<7)) | ((bits&0x7F))>>1).
+
+    Note: On the M0110A, Keypad keys and Arrow keys are preceded by 0x79.
+          Moreover, some Keypad keys(=, /, * and +) are preceded by 0x71 on press and 0xF1 on release.
+
+ARROW KEYS:
+    Arrow keys and Calc keys(+,*,/,= on keypad) share same byte sequence and preceding byte of
+    Calc keys(0x71 and 0xF1) means press and release event of SHIFT. This causes a very confusing situation,
+    it is difficult or impossible to tell Calc key from Arrow key plus SHIFT in some cases.
+
+    Raw key events:
+            press               release
+            ----------------    ----------------
+    Left:         0x79, 0x0D          0x79, 0x8D
+    Right:        0x79, 0x05          0x79, 0x85
+    Up:           0x79, 0x1B          0x79, 0x9B
+    Down:         0x79, 0x11          0x79, 0x91
+    Pad+:   0x71, 0x79, 0x0D    0xF1, 0x79, 0x8D
+    Pad*:   0x71, 0x79, 0x05    0xF1, 0x79, 0x85
+    Pad/:   0x71, 0x79, 0x1B    0xF1, 0x79, 0x9B
+    Pad=:   0x71, 0x79, 0x11    0xF1, 0x79, 0x91
+
+
+RAW CODE:
+    M0110A
+    ,---------------------------------------------------------. ,---------------.
+    |  `|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Bcksp| |Clr|  =|  /|  *|
+    |---------------------------------------------------------| |---------------|
+    |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|   | |  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|  ,|  ,|  /|Shft|Up | |  1|  2|  3|   |
+    |---------------------------------------------------------' |-----------|Ent|
+    |Optio|Mac    |           Space           |  \|Lft|Rgt|Dn | |      0|  .|   |
+    `---------------------------------------------------------' `---------------'
+    ,---------------------------------------------------------. ,---------------.
+    | 65| 25| 27| 29| 2B| 2F| 2D| 35| 39| 33| 3B| 37| 31|   67| |+0F|*11|*1B|*05|
+    |---------------------------------------------------------| |---------------|
+    |   61| 19| 1B| 1D| 1F| 23| 21| 41| 45| 3F| 47| 43| 3D|   | |+33|+37|+39|+1D|
+    |-----------------------------------------------------'   | |---------------|
+    |    73| 01| 03| 05| 07| 0B| 09| 4D| 51| 4B| 53| 4F|    49| |+2D|+2F|+31|*0D|
+    |---------------------------------------------------------| |---------------|
+    |      71| 0D| 0F| 11| 13| 17| 5B| 5D| 27| 5F| 59|  71|+1B| |+27|+29|+2B|   |
+    |---------------------------------------------------------' |-----------|+19|
+    |   75|     6F|            63             | 55|+0D|+05|+11| |    +25|+03|   |
+    `---------------------------------------------------------' `---------------'
+    + 0x79, 0xDD / 0xF1, 0xUU
+    * 0x71, 0x79,DD / 0xF1, 0x79, 0xUU
+
+
+MODEL NUMBER:
+    M0110:           0x09  00001001 : model number 4 (100)
+    M0110A:          0x0B  00001011 : model number 5 (101)
+    M0110 & M0120:   ???
+
+
+Scan Code
+---------
+    m0110_recv_key() function returns following scan codes instead of M0110 raw codes.
+    Scan codes are 1 byte size and MSB(bit7) is set when key is released.
+
+        scancode = ((raw&0x80) | ((raw&0x7F)>>1))
+
+    M0110                                                          M0120
+    ,---------------------------------------------------------.    ,---------------.
+    |  `|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Backs|    |Clr|  -|Lft|Rgt|
+    |---------------------------------------------------------|    |---------------|
+    |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|  \|    |  7|  8|  9|Up |
+    |---------------------------------------------------------|    |---------------|
+    |CapsLo|  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Return|    |  4|  5|  6|Dn |
+    |---------------------------------------------------------|    |---------------|
+    |Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  ,|  /|        |    |  1|  2|  3|   |
+    `---------------------------------------------------------'    |-----------|Ent|
+         |Opt|Mac |         Space               |Enter|Opt|        |      0|  .|   |
+         `------------------------------------------------'        `---------------'
+    ,---------------------------------------------------------.    ,---------------.
+    | 32| 12| 13| 14| 15| 17| 16| 1A| 1C| 19| 1D| 1B| 18|   33|    | 47| 4E| 46| 42|
+    |---------------------------------------------------------|    |---------------|
+    |   30| 0C| 0D| 0E| 0F| 10| 11| 20| 22| 1F| 23| 21| 1E| 2A|    | 59| 5B| 5C| 4D|
+    |---------------------------------------------------------|    |---------------|
+    |    39| 00| 01| 02| 03| 05| 04| 26| 28| 25| 29| 27|    24|    | 56| 57| 58| 48|
+    |---------------------------------------------------------|    |---------------|
+    |      38| 06| 07| 08| 09| 0B| 2D| 2E| 2B| 2F| 2C|      38|    | 53| 54| 55|   |
+    `---------------------------------------------------------'    |-----------| 4C|
+         | 3A|  37|             31              |   34| 3A|        |     52| 41|   |
+         `------------------------------------------------'        `---------------'
+
+    International keyboard(See page 22 of "Technical Info for 128K/512K")
+    ,---------------------------------------------------------.
+    | 32| 12| 13| 14| 15| 17| 16| 1A| 1C| 19| 1D| 1B| 18|   33|
+    |---------------------------------------------------------|
+    |   30| 0C| 0D| 0E| 0F| 10| 11| 20| 22| 1F| 23| 21| 1E| 2A|
+    |------------------------------------------------------   |
+    |    39| 00| 01| 02| 03| 05| 04| 26| 28| 25| 29| 27| 24|  |
+    |---------------------------------------------------------|
+    |  38| 06| 07| 08| 09| 0B| 2D| 2E| 2B| 2F| 2C| 0A|      38|
+    `---------------------------------------------------------'
+         | 3A|  37|             34              |   31| 3A|
+         `------------------------------------------------'
+
+    M0110A
+    ,---------------------------------------------------------. ,---------------.
+    |  `|  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Bcksp| |Clr|  =|  /|  *|
+    |---------------------------------------------------------| |---------------|
+    |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|   | |  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|  ,|  ,|  /|Shft|Up | |  1|  2|  3|   |
+    |---------------------------------------------------------' |-----------|Ent|
+    |Optio|Mac    |           Space           |  \|Lft|Rgt|Dn | |      0|  .|   |
+    `---------------------------------------------------------' `---------------'
+    ,---------------------------------------------------------. ,---------------.
+    | 32| 12| 13| 14| 15| 17| 16| 1A| 1C| 19| 1D| 1B| 18|   33| | 47| 68| 6D| 62|
+    |---------------------------------------------------------| |---------------|
+    |   30| 0C| 0D| 0E| 0F| 10| 11| 20| 22| 1F| 23| 21| 1E|   | | 59| 5B| 5C| 4E|
+    |-----------------------------------------------------'   | |---------------|
+    |    39| 00| 01| 02| 03| 05| 04| 26| 28| 25| 29| 27|    24| | 56| 57| 58| 66|
+    |---------------------------------------------------------| |---------------|
+    |      38| 06| 07| 08| 09| 0B| 2D| 2E| 2B| 2F| 2C|  38| 4D| | 53| 54| 55|   |
+    |---------------------------------------------------------' |-----------| 4C|
+    |   3A|     37|            31             | 2A| 46| 42| 48| |     52| 41|   |
+    `---------------------------------------------------------' `---------------'
+
+
+References
+----------
+Technical Info for 128K/512K and Plus
+    ftp://ftp.apple.asimov.net/pub/apple_II/documentation/macintosh/Mac%20Hardware%20Info%20-%20Mac%20128K.pdf
+    ftp://ftp.apple.asimov.net/pub/apple_II/documentation/macintosh/Mac%20Hardware%20Info%20-%20Mac%20Plus.pdf
+Protocol:
+    Page 20 of Tech Info for 128K/512K
+    http://www.mac.linux-m68k.org/devel/plushw.php
+Connector:
+    Page 20 of Tech Info for 128K/512K
+    http://www.kbdbabel.org/conn/kbd_connector_macplus.png
+Signaling:
+    http://www.kbdbabel.org/signaling/kbd_signaling_mac.png
+    http://typematic.blog.shinobi.jp/Entry/14/
+M0110 raw scan codes:
+    Page 22 of Tech Info for 128K/512K
+    Page 07 of Tech Info for Plus
+    http://m0115.web.fc2.com/m0110.jpg
+    http://m0115.web.fc2.com/m0110a.jpg
+*/
diff --git a/keyboards/converter/m0110_usb/m0110.h b/keyboards/converter/m0110_usb/m0110.h
new file mode 100644
index 0000000000..63ff3e90ec
--- /dev/null
+++ b/keyboards/converter/m0110_usb/m0110.h
@@ -0,0 +1,81 @@
+/*
+Copyright 2011,2012 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.
+*/
+
+#pragma once
+
+/* port settings for clock and data line */
+#if !(defined(M0110_CLOCK_PORT) && defined(M0110_CLOCK_PIN) && defined(M0110_CLOCK_DDR) && defined(M0110_CLOCK_BIT))
+#    error "M0110 clock port setting is required in config.h"
+#endif
+
+#if !(defined(M0110_DATA_PORT) && defined(M0110_DATA_PIN) && defined(M0110_DATA_DDR) && defined(M0110_DATA_BIT))
+#    error "M0110 data port setting is required in config.h"
+#endif
+
+/* Commands */
+#define M0110_INQUIRY 0x10
+#define M0110_INSTANT 0x14
+#define M0110_MODEL 0x16
+#define M0110_TEST 0x36
+
+/* Response(raw byte from M0110) */
+#define M0110_NULL 0x7B
+#define M0110_KEYPAD 0x79
+#define M0110_TEST_ACK 0x7D
+#define M0110_TEST_NAK 0x77
+#define M0110_SHIFT 0x71
+#define M0110_ARROW_UP 0x1B
+#define M0110_ARROW_DOWN 0x11
+#define M0110_ARROW_LEFT 0x0D
+#define M0110_ARROW_RIGHT 0x05
+
+/* This inidcates no response. */
+#define M0110_ERROR 0xFF
+
+/* scan code offset for keypad and arrow keys */
+#define M0110_KEYPAD_OFFSET 0x40
+#define M0110_CALC_OFFSET 0x60
+
+extern uint8_t m0110_error;
+
+/* host role */
+void    m0110_init(void);
+uint8_t m0110_send(uint8_t data);
+uint8_t m0110_recv(void);
+uint8_t m0110_recv_key(void);
+uint8_t m0110_inquiry(void);
+uint8_t m0110_instant(void);
diff --git a/keyboards/converter/xt_usb/rules.mk b/keyboards/converter/xt_usb/rules.mk
index 519d76f4d4..8033614447 100644
--- a/keyboards/converter/xt_usb/rules.mk
+++ b/keyboards/converter/xt_usb/rules.mk
@@ -19,7 +19,6 @@ NKRO_ENABLE = yes           # USB Nkey Rollover
 BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
 RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
 AUDIO_ENABLE = no           # Audio output
-XT_ENABLE = yes
 CUSTOM_MATRIX = yes
 
-SRC += matrix.c
+SRC += matrix.c xt_interrupt.c
diff --git a/keyboards/converter/xt_usb/xt.h b/keyboards/converter/xt_usb/xt.h
new file mode 100644
index 0000000000..538ff0e459
--- /dev/null
+++ b/keyboards/converter/xt_usb/xt.h
@@ -0,0 +1,73 @@
+/*
+Copyright 2018 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.
+*/
+
+#pragma once
+
+#include "quantum.h"
+
+#define XT_DATA_IN()               \
+    do {                           \
+        setPinInput(XT_DATA_PIN);  \
+        writePinHigh(XT_DATA_PIN); \
+    } while (0)
+
+#define XT_DATA_READ() readPin(XT_DATA_PIN)
+
+#define XT_DATA_LO()               \
+    do {                           \
+        writePinLow(XT_DATA_PIN);  \
+        setPinOutput(XT_DATA_PIN); \
+    } while (0)
+
+#define XT_CLOCK_IN()               \
+    do {                            \
+        setPinInput(XT_CLOCK_PIN);  \
+        writePinHigh(XT_CLOCK_PIN); \
+    } while (0)
+
+#define XT_CLOCK_READ() readPin(XT_CLOCK_PIN)
+
+#define XT_CLOCK_LO()               \
+    do {                            \
+        writePinLow(XT_CLOCK_PIN);  \
+        setPinOutput(XT_CLOCK_PIN); \
+    } while (0)
+
+void xt_host_init(void);
+
+uint8_t xt_host_recv(void);
diff --git a/keyboards/converter/xt_usb/xt_interrupt.c b/keyboards/converter/xt_usb/xt_interrupt.c
new file mode 100644
index 0000000000..ba9d71848f
--- /dev/null
+++ b/keyboards/converter/xt_usb/xt_interrupt.c
@@ -0,0 +1,166 @@
+/*
+Copyright 2018 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.
+*/
+
+#include <stdbool.h>
+#include <avr/interrupt.h>
+#include "xt.h"
+#include "wait.h"
+#include "debug.h"
+
+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 xt_host_init(void) {
+    XT_INT_INIT();
+    XT_INT_OFF();
+
+    /* hard reset */
+#ifdef XT_RESET
+    XT_RESET();
+#endif
+
+    /* soft reset: pull clock line down for 20ms */
+    XT_DATA_LO();
+    XT_CLOCK_LO();
+    wait_ms(20);
+
+    /* input mode with pullup */
+    XT_CLOCK_IN();
+    XT_DATA_IN();
+
+    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) {
+    /*
+     * XT signal format consits of 10 or 9 clocks and sends start bits and 8-bit data,
+     * which should be read on falling edge of clock.
+     *
+     *  start(0), start(1), bit0, bit1, bit2, bit3, bit4, bit5, bit6, bit7
+     *
+     * Original IBM XT keyboard sends start(0) bit while some of clones don't.
+     * Start(0) bit is read as low on data line while start(1) as high.
+     *
+     * https://github.com/tmk/tmk_keyboard/wiki/IBM-PC-XT-Keyboard-Protocol
+     */
+    static enum { START, BIT0, BIT1, BIT2, BIT3, BIT4, BIT5, BIT6, BIT7 } state = START;
+    static uint8_t data                                                         = 0;
+
+    uint8_t dbit = XT_DATA_READ();
+
+    // This is needed if using PCINT which can be called on both falling and rising edge
+    // if (XT_CLOCK_READ()) return;
+
+    switch (state) {
+        case START:
+            // ignore start(0) bit
+            if (!dbit) return;
+            break;
+        case BIT0 ... BIT7:
+            data >>= 1;
+            if (dbit) data |= 0x80;
+            break;
+    }
+    if (state++ == BIT7) {
+        pbuf_enqueue(data);
+        state = START;
+        data  = 0;
+    }
+    return;
+}
+
+/*--------------------------------------------------------------------
+ * 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 {
+        dprintf("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;
+}