adding all ErgoTravel Files (#3129)

* adding all ErgoTravel Files

* fixing KC_KEYMAP to LAYOUT_kc on Viet's keymap.c

keyboards/ergotravel/config.h

@@ -0,0 +1,90 @@
+/*
+Copyright 2018 Pierre Constantineau <jpconstantineau@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 REV1_CONFIG_H
+#define REV1_CONFIG_H
+
+#include QMK_KEYBOARD_CONFIG_H
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xCEEB
+#define PRODUCT_ID      0x1256
+#define DEVICE_VER      0x0100
+#define MANUFACTURER    JPConstantineau.com
+#define PRODUCT         ErgoTravel Keyboard
+#define DESCRIPTION     Split 45 percent ergonomic keyboard
+
+/* key matrix size */
+// Rows are doubled-up
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 7
+
+// wiring of each half
+#define MATRIX_ROW_PINS { C6, D7, E6, B4 }
+#define MATRIX_COL_PINS { F5, F6, F7, B1, B3, B2, B6 }
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* number of backlight levels */
+// #define BACKLIGHT_LEVELS 3
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCING_DELAY 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+#define BACKLIGHT_PIN B5
+#define BACKLIGHT_LEVELS 5
+
+/* ws2812 RGB LED */
+#define RGB_DI_PIN D3
+#define RGBLIGHT_TIMER
+#define RGBLED_NUM 12    // Number of LEDs
+#define ws2812_PORTREG  PORTD
+#define ws2812_DDRREG   DDRD
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+// #define NO_DEBUG
+
+/* disable print */
+// #define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+#endif

keyboards/ergotravel/ergotravel.c

@@ -0,0 +1 @@
+#include "ergotravel.h"

keyboards/ergotravel/ergotravel.h

@@ -0,0 +1,24 @@
+#ifndef ERGOTRAVEL_H
+#define ERGOTRAVEL_H
+
+#ifdef KEYBOARD_ergotravel_rev1
+    #include "rev1.h"
+#endif
+
+#include "quantum.h"
+
+// Used to create a keymap using only KC_ prefixed keys
+#define LAYOUT_kc( \
+    L00, L01, L02, L03, L04, L05,L06,            R00, R01, R02, R03, R04, R05, R06, \
+    L10, L11, L12, L13, L14, L15,L16,            R10, R11, R12, R13, R14, R15, R16,\
+    L20, L21, L22, L23, L24, L25,L26,            R20, R21, R22, R23, R24, R25, R26,\
+    L30, L31, L32, L33, L34, L35,                R30, R31, R32, R33, R34, R35 \
+    ) \
+    LAYOUT( \
+        KC_##L00, KC_##L01, KC_##L02, KC_##L03, KC_##L04, KC_##L05, KC_##L06,                    KC_##R00, KC_##R01, KC_##R02, KC_##R03, KC_##R04, KC_##R05, KC_##R06, \
+        KC_##L10, KC_##L11, KC_##L12, KC_##L13, KC_##L14, KC_##L15, KC_##L16,                    KC_##R10, KC_##R11, KC_##R12, KC_##R13, KC_##R14, KC_##R15, KC_##R16, \
+        KC_##L20, KC_##L21, KC_##L22, KC_##L23, KC_##L24, KC_##L25, KC_##L26,                    KC_##R20, KC_##R21, KC_##R22, KC_##R23, KC_##R24, KC_##R25, KC_##R26, \
+        KC_##L30, KC_##L31, KC_##L32, KC_##L33, KC_##L34, KC_##L35,                              KC_##R30, KC_##R31, KC_##R32, KC_##R33, KC_##R34, KC_##R35 \
+    )
+
+#endif

keyboards/ergotravel/i2c.c

@@ -0,0 +1,162 @@
+#include <util/twi.h>
+#include <avr/io.h>
+#include <stdlib.h>
+#include <avr/interrupt.h>
+#include <util/twi.h>
+#include <stdbool.h>
+#include "i2c.h"
+
+#ifdef USE_I2C
+
+// Limits the amount of we wait for any one i2c transaction.
+// Since were running SCL line 100kHz (=> 10μs/bit), and each transactions is
+// 9 bits, a single transaction will take around 90μs to complete.
+//
+// (F_CPU/SCL_CLOCK)  =>  # of μC cycles to transfer a bit
+// poll loop takes at least 8 clock cycles to execute
+#define I2C_LOOP_TIMEOUT (9+1)*(F_CPU/SCL_CLOCK)/8
+
+#define BUFFER_POS_INC() (slave_buffer_pos = (slave_buffer_pos+1)%SLAVE_BUFFER_SIZE)
+
+volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+static volatile uint8_t slave_buffer_pos;
+static volatile bool slave_has_register_set = false;
+
+// Wait for an i2c operation to finish
+inline static
+void i2c_delay(void) {
+  uint16_t lim = 0;
+  while(!(TWCR & (1<<TWINT)) && lim < I2C_LOOP_TIMEOUT)
+    lim++;
+
+  // easier way, but will wait slightly longer
+  // _delay_us(100);
+}
+
+// Setup twi to run at 100kHz
+void i2c_master_init(void) {
+  // no prescaler
+  TWSR = 0;
+  // Set TWI clock frequency to SCL_CLOCK. Need TWBR>10.
+  // Check datasheets for more info.
+  TWBR = ((F_CPU/SCL_CLOCK)-16)/2;
+}
+
+// Start a transaction with the given i2c slave address. The direction of the
+// transfer is set with I2C_READ and I2C_WRITE.
+// returns: 0 => success
+//          1 => error
+uint8_t i2c_master_start(uint8_t address) {
+  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTA);
+
+  i2c_delay();
+
+  // check that we started successfully
+  if ( (TW_STATUS != TW_START) && (TW_STATUS != TW_REP_START))
+    return 1;
+
+  TWDR = address;
+  TWCR = (1<<TWINT) | (1<<TWEN);
+
+  i2c_delay();
+
+  if ( (TW_STATUS != TW_MT_SLA_ACK) && (TW_STATUS != TW_MR_SLA_ACK) )
+    return 1; // slave did not acknowledge
+  else
+    return 0; // success
+}
+
+
+// Finish the i2c transaction.
+void i2c_master_stop(void) {
+  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
+
+  uint16_t lim = 0;
+  while(!(TWCR & (1<<TWSTO)) && lim < I2C_LOOP_TIMEOUT)
+    lim++;
+}
+
+// Write one byte to the i2c slave.
+// returns 0 => slave ACK
+//         1 => slave NACK
+uint8_t i2c_master_write(uint8_t data) {
+  TWDR = data;
+  TWCR = (1<<TWINT) | (1<<TWEN);
+
+  i2c_delay();
+
+  // check if the slave acknowledged us
+  return (TW_STATUS == TW_MT_DATA_ACK) ? 0 : 1;
+}
+
+// Read one byte from the i2c slave. If ack=1 the slave is acknowledged,
+// if ack=0 the acknowledge bit is not set.
+// returns: byte read from i2c device
+uint8_t i2c_master_read(int ack) {
+  TWCR = (1<<TWINT) | (1<<TWEN) | (ack<<TWEA);
+
+  i2c_delay();
+  return TWDR;
+}
+
+void i2c_reset_state(void) {
+  TWCR = 0;
+}
+
+void i2c_slave_init(uint8_t address) {
+  TWAR = address << 0; // slave i2c address
+  // TWEN  - twi enable
+  // TWEA  - enable address acknowledgement
+  // TWINT - twi interrupt flag
+  // TWIE  - enable the twi interrupt
+  TWCR = (1<<TWIE) | (1<<TWEA) | (1<<TWINT) | (1<<TWEN);
+}
+
+ISR(TWI_vect);
+
+ISR(TWI_vect) {
+  uint8_t ack = 1;
+  switch(TW_STATUS) {
+    case TW_SR_SLA_ACK:
+      // this device has been addressed as a slave receiver
+      slave_has_register_set = false;
+      break;
+
+    case TW_SR_DATA_ACK:
+      // this device has received data as a slave receiver
+      // The first byte that we receive in this transaction sets the location
+      // of the read/write location of the slaves memory that it exposes over
+      // i2c.  After that, bytes will be written at slave_buffer_pos, incrementing
+      // slave_buffer_pos after each write.
+      if(!slave_has_register_set) {
+        slave_buffer_pos = TWDR;
+        // don't acknowledge the master if this memory loctaion is out of bounds
+        if ( slave_buffer_pos >= SLAVE_BUFFER_SIZE ) {
+          ack = 0;
+          slave_buffer_pos = 0;
+        }
+        slave_has_register_set = true;
+      } else {
+        i2c_slave_buffer[slave_buffer_pos] = TWDR;
+        BUFFER_POS_INC();
+      }
+      break;
+
+    case TW_ST_SLA_ACK:
+    case TW_ST_DATA_ACK:
+      // master has addressed this device as a slave transmitter and is
+      // requesting data.
+      TWDR = i2c_slave_buffer[slave_buffer_pos];
+      BUFFER_POS_INC();
+      break;
+
+    case TW_BUS_ERROR: // something went wrong, reset twi state
+      TWCR = 0;
+    default:
+      break;
+  }
+  // Reset everything, so we are ready for the next TWI interrupt
+  TWCR |= (1<<TWIE) | (1<<TWINT) | (ack<<TWEA) | (1<<TWEN);
+}
+#endif

keyboards/ergotravel/i2c.h

@@ -0,0 +1,49 @@
+#ifndef I2C_H
+#define I2C_H
+
+#include <stdint.h>
+
+#ifndef F_CPU
+#define F_CPU 16000000UL
+#endif
+
+#define I2C_READ 1
+#define I2C_WRITE 0
+
+#define I2C_ACK 1
+#define I2C_NACK 0
+
+#define SLAVE_BUFFER_SIZE 0x10
+
+// i2c SCL clock frequency
+#define SCL_CLOCK  100000L
+
+extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+void i2c_master_init(void);
+uint8_t i2c_master_start(uint8_t address);
+void i2c_master_stop(void);
+uint8_t i2c_master_write(uint8_t data);
+uint8_t i2c_master_read(int);
+void i2c_reset_state(void);
+void i2c_slave_init(uint8_t address);
+
+
+static inline unsigned char i2c_start_read(unsigned char addr) {
+  return i2c_master_start((addr << 1) | I2C_READ);
+}
+
+static inline unsigned char i2c_start_write(unsigned char addr) {
+  return i2c_master_start((addr << 1) | I2C_WRITE);
+}
+
+// from SSD1306 scrips
+extern unsigned char i2c_rep_start(unsigned char addr);
+extern void i2c_start_wait(unsigned char addr);
+extern unsigned char i2c_readAck(void);
+extern unsigned char i2c_readNak(void);
+extern unsigned char i2c_read(unsigned char ack);
+
+#define i2c_read(ack)  (ack) ? i2c_readAck() : i2c_readNak();
+
+#endif

keyboards/ergotravel/info.json

@@ -0,0 +1,15 @@
+{
+    "keyboard_name": "ErgoTravel", 
+    "manufacturer": "jpconstantineau", 
+    "identifier": "0x1256", 
+    "url": "https://github.com/jpconstantineau/ErgoTravel", 
+    "maintainer": "qmk", 
+    "processor": "atmega32u4",  
+    "width": 14.5, 
+    "height": 5, 
+    "layouts": {
+        "LAYOUT": {
+            "layout": [{"x":0, "y":0}, {"x":1, "y":0}, {"x":2, "y":0}, {"x":3, "y":0}, {"x":4, "y":0}, {"x":5, "y":0}, {"x":8.5, "y":0}, {"x":9.5, "y":0}, {"x":10.5, "y":0}, {"x":11.5, "y":0}, {"x":12.5, "y":0}, {"x":13.5, "y":0}, {"x":0, "y":1}, {"x":1, "y":1}, {"x":2, "y":1}, {"x":3, "y":1}, {"x":4, "y":1}, {"x":5, "y":1}, {"x":8.5, "y":1}, {"x":9.5, "y":1}, {"x":10.5, "y":1}, {"x":11.5, "y":1}, {"x":12.5, "y":1}, {"x":13.5, "y":1}, {"x":0, "y":2}, {"x":1, "y":2}, {"x":2, "y":2}, {"x":3, "y":2}, {"x":4, "y":2}, {"x":5, "y":2}, {"x":8.5, "y":2}, {"x":9.5, "y":2}, {"x":10.5, "y":2}, {"x":11.5, "y":2}, {"x":12.5, "y":2}, {"x":13.5, "y":2}, {"x":0, "y":3}, {"x":1, "y":3}, {"x":2, "y":3}, {"x":3, "y":3}, {"x":4, "y":3}, {"x":5, "y":3}, {"x":6, "y":3}, {"x":7.5, "y":3}, {"x":8.5, "y":3}, {"x":9.5, "y":3}, {"x":10.5, "y":3}, {"x":11.5, "y":3}, {"x":12.5, "y":3}, {"x":13.5, "y":3}, {"x":4, "y":4}, {"x":5, "y":4}, {"x":6, "y":4}, {"x":7.5, "y":4}, {"x":8.5, "y":4}, {"x":9.5, "y":4}]
+        }
+    }
+}

keyboards/ergotravel/keymaps/ckofy/config.h

@@ -0,0 +1,46 @@
+/*
+Copyright 2017 Pierre Constantineau <jpconstantineau@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_USER_H
+#define CONFIG_USER_H
+
+#include "config_common.h"
+
+/* Use I2C or Serial, not both */
+
+//#define USE_SERIAL
+#define USE_I2C
+
+/* Select hand configuration */
+
+//#define MASTER_LEFT
+#define MASTER_RIGHT
+//#define EE_HANDS
+
+#define TAPPING_TOGGLE 2
+
+// required if modifiers are defined in layers besided the default one.
+#define PREVENT_STUCK_MODIFIERS
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 12
+#define RGBLIGHT_HUE_STEP 8
+#define RGBLIGHT_SAT_STEP 8
+#define RGBLIGHT_VAL_STEP 8
+
+#endif

keyboards/ergotravel/keymaps/ckofy/keymap.c

@@ -0,0 +1,202 @@
+#include QMK_KEYBOARD_H
+
+extern keymap_config_t keymap_config;
+
+#define _COLEMAK 0
+#define _QWERTY 1
+#define _NUMPAD 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+  COLEMAK = SAFE_RANGE,
+  QWERTY,
+  NUMPAD,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+/* Fn keys */
+
+enum {
+
+  F_SFT = 0,
+  F_ALT,
+  F_CTRL,
+  F_NUMPAD
+// F_LOWER,
+//  F_RAISE,
+};
+
+#define KC_ KC_TRNS
+#define _______ KC_TRNS
+#define KC_XXXX KC_NO
+
+#define KC_CMK COLEMAK
+#define KC_QWE QWERTY
+#define KC_LOWR LOWER
+#define KC_RASE RAISE
+#define KC_QRAS QRAISE
+#define KC_ADJT ADJUST
+#define KC_RST RESET
+#define KC_BL_S BL_STEP
+#define KC_DBUG DEBUG
+#define KC_RTOG RGB_TOG
+#define KC_RMOD RGB_MOD
+#define KC_RHUI RGB_HUI
+#define KC_RHUD RGB_HUD
+#define KC_RSAI RGB_SAI
+#define KC_RSAD RGB_SAD
+#define KC_RVAI RGB_VAI
+#define KC_RVAD RGB_VAD
+//#define KC_CATDEL LCTL(LALT(KC_DEL)) // Ctrl alt del
+#define KC_CPY LCTL(KC_C)
+#define KC_PST LCTL(KC_V)
+#define KC_SELA LCTL(KC_A)
+#define KC_UDO LCTL(KC_Z)
+#define KC_CUT LCTL(KC_X)
+#define KC_SVE LCTL(KC_S)
+#define KC_OSH F(F_SFT)
+#define KC_OCTL F(F_CTRL)
+#define KC_NUMP F(F_NUMPAD)
+#define KC_SHESC MT(MOD_LSFT,KC_ESC)
+#define KC_SHENT MT(MOD_RSFT,KC_ENT)
+//#define KC_NUMP TG(_NUMPAD)  // Toggle layer NUMPAD for use in KC_keymaps
+//#define KC_RST RESET
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+// Colemak Mod-DH is used. https://colemakmods.github.io/mod-dh/
+  [_COLEMAK] = LAYOUT_kc(
+  //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+     TAB , Q  , W  , F  , P  , B  ,LPRN,      RPRN, J  , L  , U  , Y  ,SCLN,BSPC,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+     BSPC, A  , R  , S  , T  , G  ,EQL ,      MINS, K  , N  , E  , I  , O  ,QUOT,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+    SHESC, Z  , X  , C  , D  , V  ,NUMP,       ENT, M  , H  ,COMM,DOT ,SLSH,SHENT,
+  //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+     OCTL,LALT,LGUI,DEL ,LOWR, SPC,                OSH, RASE,LEFT,RIGHT,RALT,RCTL
+  //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_QWERTY] = LAYOUT_kc(
+  //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+     ESC , Q  , W  , E  , R  , T  ,LBRC,      RBRC, Y  , U  , I  , O  , P  ,BSPC,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+     TAB , A  , S  , D  , F  , G  ,LPRN,      RPRN, H  , J  , K  , L  ,SCLN,QUOT,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+     LSFT, Z  , X  , C  , V  , B  ,    ,          , N  , M  ,COMM,DOT ,SLSH,ENT ,
+  //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+     LCTL,LGUI,LALT,DEL ,    , SPC,                SPC ,    ,LEFT,DOWN, UP ,RIGHT
+  //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_NUMPAD] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+           ,    ,    ,    ,    ,    ,    ,          ,ASTR, P7 , P8 , P9 ,SLSH,    ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,    ,          ,PIPE, P4 , P5 , P6 ,MINS,    ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,    ,          ,COMM, P1 , P2 , P3 ,PLUS,    ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,                    , P0 ,NLCK,    ,    ,    
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_LOWER] = LAYOUT_kc(
+  //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+         ,XXXX,XXXX,XXXX,XXXX,CAPS,    ,          ,PGUP,HOME, UP ,END ,DEL ,    ,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+         ,SELA,LALT,LSFT,LCTL,SVE ,    ,          ,PGDN,LEFT,DOWN,RGHT,BSPC,INS ,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+         ,UDO ,CUT ,CPY ,PST ,XXXX,    ,          ,XXXX,XXXX,COMM,DOT ,SLSH,    ,
+  //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+         ,    ,    ,    ,    ,    ,                    ,    ,    ,    ,    ,    
+  //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_RAISE] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+           ,AMPR,PERC,HASH,EXLM,LPRN,    ,          ,ASTR,RPRN, AT ,DLR ,CIRC,BSPC,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           , 7  , 5  , 3  , 1  , 9  ,LBRC,      RBRC,  8 , 0  , 2  , 4  , 6  ,BSLS,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           , GRV,TILD,XXXX,EQL ,PLUS,    ,          ,UNDS,MINS,COMM,DOT ,SLSH,ENT ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,                    ,    ,    ,    ,    ,    
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+
+  [_ADJUST] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+           , F1 , F2 , F3 , F4 , F5 , F6,         F7,  F8, F9 ,F10 , F11, F12,BSPC,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,    ,          ,    , CMK,QWE ,    ,    ,    ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,    ,          ,    ,    ,    ,    ,    ,    ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,                    ,    ,    ,VOLD,VOLU,MUTE
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ) 
+
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+  [F_SFT]  = ACTION_MODS_ONESHOT (MOD_LSFT)
+  ,[F_ALT]  = ACTION_MODS_ONESHOT (MOD_LALT)
+  ,[F_CTRL] = ACTION_MODS_ONESHOT (MOD_LCTL)
+  ,[F_NUMPAD] = ACTION_LAYER_TAP_TOGGLE(_NUMPAD)
+// ,[F_LOWER] = ACTION_LAYER_TAP_TOGGLE(LOWER)                // FN1 - Momentary Layer 1 (Lower)    
+// ,[F_RAISE] = ACTION_LAYER_TAP_TOGGLE(RAISE)                // FN2 - Momentary Layer 2 (Raise)
+};   
+
+
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case COLEMAK:
+      if (record->event.pressed) {
+        set_single_persistent_default_layer(_COLEMAK);
+
+      }
+      return false;
+      break;
+    case QWERTY:
+      if (record->event.pressed) {
+        set_single_persistent_default_layer(_QWERTY);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/ergotravel/keymaps/ckofy/rules.mk

@@ -0,0 +1,3 @@
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/ergotravel/keymaps/default/config.h

@@ -0,0 +1,41 @@
+/*
+Copyright 2017 Pierre Constantineau <jpconstantineau@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_USER_H
+#define CONFIG_USER_H
+
+#include "config_common.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 12
+#define RGBLIGHT_HUE_STEP 8
+#define RGBLIGHT_SAT_STEP 8
+#define RGBLIGHT_VAL_STEP 8
+
+#endif

keyboards/ergotravel/keymaps/default/keymap.c

@@ -0,0 +1,134 @@
+#include QMK_KEYBOARD_H
+
+extern keymap_config_t keymap_config;
+
+#define _QWERTY 0
+#define _LOWER 1
+#define _RAISE 2
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+#define KC_ KC_TRNS
+#define _______ KC_TRNS
+
+#define KC_LOWR LOWER
+#define KC_RASE RAISE
+#define KC_ADJT ADJUST
+#define KC_RST RESET
+#define KC_BL_S BL_STEP
+#define KC_DBUG DEBUG
+#define KC_RTOG RGB_TOG
+#define KC_RMOD RGB_MOD
+#define KC_RHUI RGB_HUI
+#define KC_RHUD RGB_HUD
+#define KC_RSAI RGB_SAI
+#define KC_RSAD RGB_SAD
+#define KC_RVAI RGB_VAI
+#define KC_RVAD RGB_VAD
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  [_QWERTY] = LAYOUT_kc(
+  //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+     ESC , Q  , W  , E  , R  , T  ,LBRC,      RBRC, Y  , U  , I  , O  , P  ,BSPC,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+     TAB , A  , S  , D  , F  , G  , A,          A,  H  , J  , K  , L  ,SCLN,QUOT,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+     LSFT, Z  , X  , C  , V  , B  , A,        SPC,  N  , M  ,COMM,DOT ,SLSH,ENT ,
+  //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+     LCTL,LGUI,LALT,ADJT,LOWR,SPC,                 SPC, RASE,LEFT, UP ,DOWN,RIGHT
+  //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_LOWER] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+      GRAVE, 1  , 2  , 3  , 4  , 5  , A,           B,  6  , 7  , 8  , 9  , 0  ,DEL,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       TAB , F1 , F2 , F3 , F4 , F5 , F6 ,         D,  Y  ,MINS, EQL,LBRC,RBRC,BSLS,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       LSFT, F7 , F8 , F9 , F10, F11, F12,       SPC,  N  , M ,COMM,DOT ,SLSH,ENT ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+       LCTL,LGUI,LALT,ADJT,LOWR,SPC,                 SPC, RASE,LEFT, UP ,DOWN,RIGHT
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_RAISE] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+       ESC , 1  , 2  , 3  , 4  , 5  , A,          B,  6  , 7  , 8  , 9  , 0  ,BSPC,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       TAB , Q  , W  , E  , R  , T  , C ,         D,  Y  , U  , I  , O  , P  ,DEL ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       LSFT, Z  , X  , C  , V  , B  , A,        SPC,  N  , M  ,COMM,DOT ,SLSH,ENT ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+       LCTL,LGUI,LALT,ADJT,LOWR,SPC,                 SPC, RASE,LEFT, UP ,DOWN,RIGHT
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_ADJUST] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+       ESC , F1 , F2 , F3 , F4 , F5 , F6,         F7,  F8, F9 ,F10 , F11, F12,BSPC,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       TAB , Q  , W  , E  , R  , T  , C ,         D,  Y  , U  , I  , O  , P  ,DEL ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       LSFT, Z  , X  , C  , V  , B  , A,        SPC,  N  , M  ,COMM,DOT ,SLSH,ENT ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+       LCTL,LGUI,LALT,ADJT,LOWR,SPC,                 SPC, RASE,LEFT, UP ,DOWN,RIGHT
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  )
+
+};
+
+   
+
+
+
+
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_qwerty);
+        #endif
+        set_single_persistent_default_layer(_QWERTY);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/ergotravel/keymaps/default/rules.mk

@@ -0,0 +1,3 @@
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/ergotravel/keymaps/ian/config.h

@@ -0,0 +1,41 @@
+/*
+Copyright 2017 Pierre Constantineau <jpconstantineau@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_USER_H
+#define CONFIG_USER_H
+
+#include "config_common.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+// #define MASTER_LEFT
+#define MASTER_RIGHT
+// #define EE_HANDS
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 12
+#define RGBLIGHT_HUE_STEP 8
+#define RGBLIGHT_SAT_STEP 8
+#define RGBLIGHT_VAL_STEP 8
+
+#endif

keyboards/ergotravel/keymaps/ian/keymap.c

@@ -0,0 +1,95 @@
+#include QMK_KEYBOARD_H
+
+extern keymap_config_t keymap_config;
+
+enum custom_layers {
+    _COLEMAK,
+    _ADJUST,
+    _RAISE,
+    _LOWER,
+    _QWERTY
+};
+
+
+
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+#define BASELYR TO(_COLEMAK) // base layer
+#define LOWER MO(_LOWER) // momentary lower layer
+#define RAISE MO(_RAISE) // momentary raise layer
+#define ADJUST MO(_ADJUST) // momentary adjust layer
+#define QWERTY TG(_QWERTY)
+#define LLOWER TG(_LOWER) // lock for lower layer
+#define LRAISE TG(_RAISE) // lock for raise layer
+#define LHALF LALT(LGUI(KC_LEFT)) // spec left half screen
+#define TLHALF LCTL(LGUI(KC_LEFT)) // spec top left half
+#define BLHALF LCTL(LSFT(LGUI(KC_LEFT))) // spec bottom left half
+#define RHALF LALT(LGUI(KC_RIGHT)) // spec right half screen
+#define TRHALF LCTL(LGUI(KC_RIGHT)) // spec top right half
+#define BRHALF LCTL(LSFT(LGUI(KC_RIGHT))) // spec bottom right half
+#define SAFBCK LGUI(KC_LBRC) // safari back
+#define SAFFWD LGUI(KC_RBRC) // safari forward
+#define CENTER LALT(LGUI(KC_C)) // spec center
+#define FULL LALT(LGUI(KC_F)) // spec full screen
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  [_COLEMAK] = LAYOUT(
+    //,------+-------+-------+-------+-------+-------+-------.     ,-------+-------+-------+-------+-------+-------+-------.
+      KC_ESC ,  KC_Q ,  KC_W ,  KC_F ,  KC_P ,  KC_G ,KC_LCBR,      KC_RCBR,  KC_J  ,  KC_L ,  KC_U ,  KC_Y ,KC_SCLN,KC_BSPC,
+    //,------+-------+-------+-------+-------+-------+-------.     ,-------+-------+-------+-------+-------+-------+-------.
+      KC_TAB ,  KC_A ,  KC_R ,  KC_S ,  KC_T ,  KC_D ,KC_LPRN,      KC_RPRN, KC_H  ,  KC_N ,  KC_E ,  KC_I , KC_O  ,KC_QUOT,
+    //,------+-------+-------+-------+-------+-------+-------.     ,-------+-------+-------+-------+-------+-------+-------.
+      KC_BSLS, KC_Z  ,  KC_X ,  KC_C ,  KC_V ,  KC_B ,KC_LBRC ,      KC_RBRC ,  KC_K ,  KC_M ,KC_COMM, KC_DOT,KC_SLSH,KC_ENT ,
+    //,------+-------+-------+-------+-------+-------+-------.     .-------+-------+-------+-------+-------+-------+-------.
+      ADJUST ,KC_LCTL,KC_LALT,KC_LGUI, LOWER, KC_SPC,                       KC_LSFT, RAISE, KC_LEFT, KC_DOWN, KC_UP,KC_RGHT
+    //,------+-------+-------+-------+-------/-------/                     \-------\-------+-------+-------+-------+-------'
+  ),
+
+  [_ADJUST] = LAYOUT(
+    //,------+-------+-------+-------+-------+-------+-------.     ,-------+-------+-------+-------+-------+-------+-------.
+      BASELYR,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,      XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX, RESET ,
+    //,------+-------+-------+-------+-------+-------+-------.     ,-------+-------+-------+-------+-------+-------+-------.
+      XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,      XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,
+    //,------+-------+-------+-------+-------+-------+-------.     ,-------+-------+-------+-------+-------+-------+-------.
+      XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,      XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,
+    //|------+-------+-------+-------+-------+-------+-------.     .-------+-------+-------+-------+-------+-------+-------.
+      _______,KC_F10 ,KC_F11 ,KC_F12 ,LLOWER ,XXXXXXX,                      XXXXXXX,LRAISE ,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX
+    //`------+-------+-------+-------+-------/-------/                      \------\-------+-------+-------+-------+-------'
+  ),
+
+  [_RAISE] = LAYOUT(
+    //,------+-------+-------+-------+-------+-------+-------.     ,-------+-------+-------+-------+-------+-------+-------.
+      BASELYR,KC_EXLM, KC_AT, KC_HASH, KC_DLR,KC_LCBR,XXXXXXX,      XXXXXXX, KC_RCBR, TLHALF,  CENTER,  TRHALF, XXXXXXX, KC_BSPC,
+    //,------+-------+-------+-------+-------+-------+-------.     ,-------+-------+-------+-------+-------+-------+-------.
+      KC_TILD,KC_PERC,KC_CIRC,KC_AMPR,KC_ASTR,KC_LPRN,XXXXXXX,      XXXXXXX, KC_RPRN, LHALF,   FULL,    RHALF,  XXXXXXX, KC_VOLU,
+    //,------+-------+-------+-------+-------+-------+-------.     ,-------+-------+-------+-------+-------+-------+-------.
+      KC_GRV, KC_MINS,KC_PLUS,KC_UNDS,KC_EQL, KC_LBRC,XXXXXXX,      XXXXXXX, KC_RBRC, BLHALF,  XXXXXXX, BRHALF, XXXXXXX, KC_VOLD,
+    //|-------+-------+-------+-------+-------+-------+-------.    .-------+-------+-------+-------+-------+-------+-------|
+       XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX,KC_TRNS,KC_SPC,                     KC_LSFT, KC_TRNS, XXXXXXX, KC_F14, KC_F15,  KC_MUTE
+    //`-------+-------+-------+-------+-------/-------/                     \------\-------+-------+-------+-------+-------'
+  ),
+
+  [_LOWER] = LAYOUT(
+    //,------+-------+-------+-------+-------+-------+-------.     ,-------+-------+-------+-------+-------+-------+-------.
+      BASELYR, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_LCBR,XXXXXXX,      XXXXXXX, KC_RCBR, KC_7,  KC_8, KC_9,   KC_MINS,  KC_BSPC,
+    //,------+-------+-------+-------+-------+-------+-------.     ,-------+-------+-------+-------+-------+-------+-------.
+      XXXXXXX, XXXXXXX, SAFBCK,  XXXXXXX, SAFFWD,  KC_LPRN,XXXXXXX,      XXXXXXX, KC_RPRN, KC_4,  KC_5, KC_6,   KC_PLUS,  XXXXXXX,
+    //,------+-------+-------+-------+-------+-------+-------.     ,-------+-------+-------+-------+-------+-------+-------.
+      XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_LBRC,XXXXXXX,      XXXXXXX, KC_RBRC, KC_1,  KC_2, KC_3,   KC_ASTR,  KC_ENT,
+    //|-------+-------+-------+-------+-------+-------+-------.    .-------+-------+-------+-------+-------+-------+-------|
+       XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_TRNS, KC_SPC,                  KC_LSFT, KC_0,  KC_0, KC_DOT, KC_SLASH, XXXXXXX 
+    //`-------+-------+-------+-------+-------/-------/                     \------\-------+-------+-------+-------+-------'
+  )
+
+};
+
+   
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    
+  }
+  return true;
+}
+

keyboards/ergotravel/keymaps/ian/rules.mk

@@ -0,0 +1,3 @@
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/ergotravel/keymaps/jpconstantineau/config.h

@@ -0,0 +1,41 @@
+/*
+Copyright 2017 Pierre Constantineau <jpconstantineau@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_USER_H
+#define CONFIG_USER_H
+
+#include "config_common.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 12
+#define RGBLIGHT_HUE_STEP 8
+#define RGBLIGHT_SAT_STEP 8
+#define RGBLIGHT_VAL_STEP 8
+
+#endif

keyboards/ergotravel/keymaps/jpconstantineau/keymap.c

@@ -0,0 +1,129 @@
+#include QMK_KEYBOARD_H
+
+extern keymap_config_t keymap_config;
+
+#define _QWERTY 0
+#define _LOWER 1
+#define _RAISE 2
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+#define KC_ KC_TRNS
+#define _______ KC_TRNS
+
+#define KC_LOWR LOWER
+#define KC_RASE RAISE
+#define KC_ADJT ADJUST
+#define KC_RST RESET
+#define KC_BL_S BL_STEP
+#define KC_DBUG DEBUG
+#define KC_RTOG RGB_TOG
+#define KC_RMOD RGB_MOD
+#define KC_RHUI RGB_HUI
+#define KC_RHUD RGB_HUD
+#define KC_RSAI RGB_SAI
+#define KC_RSAD RGB_SAD
+#define KC_RVAI RGB_VAI
+#define KC_RVAD RGB_VAD
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  [_QWERTY] = LAYOUT_kc(
+  //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+     ESC , Q  , W  , E  , R  , T  ,LBRC,      RBRC, Y  , U  , I  , O  , P  ,BSPC,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+     TAB , A  , S  , D  , F  , G  , A,          A,  H  , J  , K  , L  ,SCLN,QUOT,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+     LSFT, Z  , X  , C  , V  , B  , A,        SPC,  N  , M  ,COMM,DOT ,SLSH,ENT ,
+  //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+     LCTL,LGUI,LALT,ADJT,LOWR,SPC,                 SPC, RASE,LEFT, UP ,DOWN,RIGHT
+  //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_LOWER] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+      GRAVE, 1  , 2  , 3  , 4  , 5  , A,           B,  6  , 7  , 8  , 9  , 0  ,DEL,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       TAB , F1 , F2 , F3 , F4 , F5 , F6 ,         D,  Y  ,MINS, EQL,LBRC,RBRC,BSLS,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       LSFT, F7 , F8 , F9 , F10, F11, F12,       SPC,  N  , M ,COMM,DOT ,SLSH,ENT ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+       LCTL,LGUI,LALT,ADJT,LOWR,SPC,                 SPC, RASE,LEFT, UP ,DOWN,RIGHT
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_RAISE] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+       ESC , 1  , 2  , 3  , 4  , 5  , A,          B,  6  , 7  , 8  , 9  , 0  ,BSPC,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       TAB , Q  , W  , E  , R  , T  , C ,         D,  Y  , U  , I  , O  , P  ,DEL ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       LSFT, Z  , X  , C  , V  , B  , A,        SPC,  N  , M  ,COMM,DOT ,SLSH,ENT ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+       LCTL,LGUI,LALT,ADJT,LOWR,SPC,                 SPC, RASE,LEFT, UP ,DOWN,RIGHT
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_ADJUST] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+       ESC , F1 , F2 , F3 , F4 , F5 , F6,         F7,  F8, F9 ,F10 , F11, F12,BSPC,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       TAB , Q  , W  , E  , R  , T  , C ,         D,  Y  , U  , I  , O  , P  ,DEL ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       LSFT, Z  , X  , C  , V  , B  , A,        SPC,  N  , M  ,COMM,DOT ,SLSH,ENT ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+       LCTL,LGUI,LALT,ADJT,LOWR,SPC,                 SPC, RASE,LEFT, UP ,DOWN,RIGHT
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  )
+
+};
+
+   
+
+
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        set_single_persistent_default_layer(_QWERTY);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/ergotravel/keymaps/jpconstantineau/rules.mk

@@ -0,0 +1,3 @@
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/ergotravel/keymaps/viet/config.h

@@ -0,0 +1,42 @@
+/*
+Copyright 2017 Pierre Constantineau <jpconstantineau@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_USER_H
+#define CONFIG_USER_H
+
+#include "config_common.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+//#define MASTER_LEFT
+#define MASTER_RIGHT
+// #define EE_HANDS
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 26
+#define RGBLIGHT_HUE_STEP 20
+#define RGBLIGHT_SAT_STEP 20
+#define RGBLIGHT_VAL_STEP 20
+#define RGBLIGHT_LIMIT_VAL 220
+
+#endif

keyboards/ergotravel/keymaps/viet/keymap.c

@@ -0,0 +1,327 @@
+#include "ergotravel.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+#include "mousekey.h"
+#include "process_unicode.h"
+extern keymap_config_t keymap_config;
+
+#define _QWERTY 0
+#define _NUMBERS 1
+#define _SYMBOLS 2
+#define _CODING 3
+#define _NAVIGATION 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  ADJUST,
+  CODING_SPACE,
+  NUMBERS_SPACE,
+  SYMBOLS_SPACE,
+  NAVIGATE_SPACE,
+  TABLE_FLIP,
+  RESET_TABLE,
+  SHRUG,
+  LOOK_OF_DISAPPROVAL
+};
+
+#define KC_ KC_TRNS
+#define _______ KC_TRNS
+
+#define KC_ADJT MO(_ADJUST)
+#define KC_RST RESET
+#define KC_BL_S BL_STEP
+#define KC_DBUG DEBUG
+#define KC_RTOG RGB_TOG
+#define KC_RMOD RGB_MOD
+#define KC_RHUI RGB_HUI
+#define KC_RHUD RGB_HUD
+#define KC_RSAI RGB_SAI
+#define KC_RSAD RGB_SAD
+#define KC_RVAI RGB_VAI
+#define KC_RVAD RGB_VAD
+
+#define KC_RSEN MT(MOD_RSFT, KC_ENT) // Tap for enter, hold for right shift
+
+#define KC_LCCA MT(MOD_LCTL, KC_CAPS)  // Tap for caps lock, hold for left control
+#define KC_SHDE MT(MOD_LSFT, KC_DEL) // Tap for delete, hold for left shift
+
+#define KC_NAVI MO(_NAVIGATION)
+
+#define KC_COSP CODING_SPACE
+#define KC_NUSP NUMBERS_SPACE
+#define KC_SYSP SYMBOLS_SPACE
+#define KC_NASP NAVIGATE_SPACE
+
+#define KC_FLIP TABLE_FLIP
+#define KC_TSET RESET_TABLE
+#define KC_SRUG SHRUG
+#define KC_DISA LOOK_OF_DISAPPROVAL
+#define KC_RST RESET
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  [_QWERTY] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+       TAB , Q  , W  , E  , R  , T  ,HOME,      PGUP, Y  , U  , I  , O  , P  ,BSPC,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       LCCA, A  , S  , D  , F  , G  ,END ,      PGDN, H  , J  , K  , L  ,SCLN,QUOT,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+       SHDE, Z  , X  , C  , V  , B  ,LGUI,      RALT, N  , M  ,COMM,DOT ,SLSH,RSEN,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+       ESC ,ADJT,LALT,ENT ,NUSP,NASP,                SYSP,COSP,RCTL,NAVI,ADJT,DEL
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_NUMBERS] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+      GRAVE, 1  , 2  , 3  , 4  , 5  ,MPLY,      VOLU,  6  , 7  , 8  , 9  , 0 ,    ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,MNXT,      VOLD,FLIP,TSET,SRUG,DISA,    ,    ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,    ,          ,    ,    ,    ,    ,    ,    ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,                    ,    ,    ,    ,    ,
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_SYMBOLS] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+      GRAVE,EXLM, AT ,HASH,DLR ,PERC,MPLY,      VOLU,CIRC,AMPR,ASTR,LPRN,RPRN,BSLS,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,MNXT,      VOLD,    ,    ,    ,    ,    ,    ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,    ,          ,    ,    ,    ,    ,    ,    ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,                    ,    ,    ,    ,    ,
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_CODING] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+           ,    ,    ,LCBR,RCBR,    ,MPLY,      VOLU,    ,AMPR,PIPE,DLR ,    ,    ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,    ,    ,LPRN,RPRN,    ,MNXT,      VOLD,    ,UNDS,MINS,ASTR,    ,    ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,    ,    ,LBRC,RBRC,    ,    ,          ,    ,PLUS,EQL ,    ,    ,    ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,                    ,    ,    ,    ,    ,
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_NAVIGATION] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+           ,    ,    , UP ,    ,    ,MPLY,      VOLU,WH_U,BTN1,MS_U,BTN1,    ,    ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,    ,LEFT,DOWN,RGHT,    ,MNXT,      VOLD,WH_D,MS_L,MS_D,MS_R,    ,    ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,    ,          ,    ,    ,    ,    ,    ,    ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,                    ,    ,    ,    ,    ,
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  ),
+
+  [_ADJUST] = LAYOUT_kc(
+    //,----+----+----+----+----+----+----.     ,----+----+----+----+----+----+----.
+       F1  ,F2  ,F3  ,F4  ,F5  ,F6  ,    ,          ,F7  ,F8  ,F9  ,F10 ,F11 ,F12 ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,RTOG,RVAI,RHUI,RSAI,    ,    ,          ,    ,    ,    ,    ,    ,    ,
+    //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+           ,RMOD,RVAD,RHUD,RSAD,    ,    ,          ,RST ,    ,    ,    ,    ,    ,
+    //|----+----+----+----+----+----+----.     .----+----+----+----+----+----+----|
+           ,    ,    ,    ,    ,    ,                    ,    ,    ,    ,    ,
+    //`----+----+----+--+-+----/----/               \----\----+----+----+----+----'
+  )
+
+};
+
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+uint16_t custom_lt_timer;
+keypos_t prv_key_pressed;
+// Runs just one time when the keyboard initializes.
+void matrix_init_user(void) {
+//    set_unicode_input_mode(UC_LNX); // Linux
+    set_unicode_input_mode(UC_OSX); // Mac OSX
+//    set_unicode_input_mode(UC_WIN); // Windows (with registry key, see wiki)
+    //set_unicode_input_mode(UC_WINC); // Windows (with WinCompose, see wiki)
+};
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+
+  if(record->event.pressed) prv_key_pressed = record->event.key;
+    #define IS_KEYPOS_SAME(keyone,keytwo)  ((keyone.col==keytwo.col)&&(keyone.row==keytwo.row))
+    #define ANOTHER_KEY_PRESSED (!IS_KEYPOS_SAME(prv_key_pressed, record->event.key))
+
+  inline void tap(uint16_t keycode) {
+    register_code(keycode);
+    unregister_code(keycode);
+  };
+
+  inline void swapInput(void) {
+    register_code(KC_LGUI);
+    tap(KC_SPC);
+    unregister_code(KC_LGUI);
+  };
+
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_qwerty);
+        #endif
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case CODING_SPACE:
+      if (record->event.pressed) {
+        custom_lt_timer = timer_read();
+        layer_on(_CODING);
+      } else {
+        layer_off(_CODING);
+        if (timer_elapsed(custom_lt_timer)<150 && (!ANOTHER_KEY_PRESSED)) {
+          register_code(KC_SPC);
+          unregister_code(KC_SPC);
+        }
+      }
+      return false;
+      break;
+    case NUMBERS_SPACE:
+      if (record->event.pressed) {
+        custom_lt_timer = timer_read();
+        layer_on(_NUMBERS);
+      } else {
+        layer_off(_NUMBERS);
+        if (timer_elapsed(custom_lt_timer)<150 && (!ANOTHER_KEY_PRESSED)) {
+          register_code(KC_SPC);
+          unregister_code(KC_SPC);
+        }
+      }
+      return false;
+      break;
+    case SYMBOLS_SPACE:
+      if (record->event.pressed) {
+        custom_lt_timer = timer_read();
+        layer_on(_SYMBOLS);
+      } else {
+        layer_off(_SYMBOLS);
+        if (timer_elapsed(custom_lt_timer)<150 && (!ANOTHER_KEY_PRESSED)) {
+          register_code(KC_SPC);
+          unregister_code(KC_SPC);
+        }
+      }
+      return false;
+      break;
+    case NAVIGATE_SPACE:
+      if (record->event.pressed) {
+        custom_lt_timer = timer_read();
+        layer_on(_NAVIGATION);
+      } else {
+        layer_off(_NAVIGATION);
+        if (timer_elapsed(custom_lt_timer)<150 && (!ANOTHER_KEY_PRESSED)) {
+          register_code(KC_SPC);
+          unregister_code(KC_SPC);
+        }
+      }
+      return false;
+      break;
+    case TABLE_FLIP:
+      if (record->event.pressed) {
+        swapInput();
+
+        register_code(KC_RSFT);
+        tap(KC_9);
+        unregister_code(KC_RSFT);
+        process_unicode((0x256F|QK_UNICODE), record);   // Arm
+        process_unicode((0x00B0|QK_UNICODE), record);   // Eye
+        process_unicode((0x25A1|QK_UNICODE), record);   // Mouth
+        process_unicode((0x00B0|QK_UNICODE), record);   // Eye
+        register_code(KC_RSFT);
+        tap(KC_0);
+        unregister_code(KC_RSFT);
+        process_unicode((0x256F|QK_UNICODE), record);   // Arm
+        tap(KC_SPC);
+        process_unicode((0x0361|QK_UNICODE), record);   // Flippy
+        tap(KC_SPC);
+        process_unicode((0x253B|QK_UNICODE), record);   // Table
+        process_unicode((0x2501|QK_UNICODE), record);   // Table
+        process_unicode((0x253B|QK_UNICODE), record);   // Table
+
+        swapInput();
+      }
+      return false;
+      break;
+    case RESET_TABLE: // ┬──┬ ノ( ゜-゜ノ)
+      if (record->event.pressed) {
+        swapInput();
+
+        process_unicode((0x252C|QK_UNICODE), record);   // Table
+        process_unicode((0x2500|QK_UNICODE), record);   // Table
+        process_unicode((0x2500|QK_UNICODE), record);   // Table
+        process_unicode((0x252C|QK_UNICODE), record);   // Table
+        tap(KC_SPC);
+        process_unicode((0x30CE|QK_UNICODE), record);   // Arm
+        register_code(KC_RSFT);
+        tap(KC_9);
+        unregister_code(KC_RSFT);
+        tap(KC_SPC);
+        process_unicode((0x309C|QK_UNICODE), record);   // Eye
+        tap(KC_MINS);
+        process_unicode((0x309C|QK_UNICODE), record);   // Eye
+        process_unicode((0x30CE|QK_UNICODE), record);   // Arm
+        register_code(KC_RSFT);
+        tap(KC_0);
+        unregister_code(KC_RSFT);
+
+        swapInput();
+      }
+      return false;
+      break;
+    case SHRUG: // ¯\_(ツ)_/¯
+      if (record->event.pressed) {
+        swapInput();
+
+        process_unicode((0x00AF|QK_UNICODE), record);   // Hand
+        tap(KC_BSLS);                                   // Arm
+        register_code(KC_RSFT);
+        tap(KC_UNDS);                                   // Arm
+        tap(KC_LPRN);                                   // Head
+        unregister_code(KC_RSFT);
+        process_unicode((0x30C4|QK_UNICODE), record);   // Face
+        register_code(KC_RSFT);
+        tap(KC_RPRN);                                   // Head
+        tap(KC_UNDS);                                   // Arm
+        unregister_code(KC_RSFT);
+        tap(KC_SLSH);                                   // Arm
+        process_unicode((0x00AF|QK_UNICODE), record);   // Hand
+
+        swapInput();
+      }
+      return false;
+      break;
+    case LOOK_OF_DISAPPROVAL:       // ಠ_ಠ
+      if(record->event.pressed){
+        swapInput();
+
+        process_unicode((0x0CA0|QK_UNICODE), record);   // Eye
+        register_code(KC_RSFT);
+        tap(KC_MINS);
+        unregister_code(KC_RSFT);
+        process_unicode((0x0CA0|QK_UNICODE), record);   // Eye
+
+        swapInput();
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/ergotravel/keymaps/viet/rules.mk

@@ -0,0 +1,7 @@
+RGBLIGHT_ENABLE = yes
+BACKLIGHT_ENABLE = no
+UNICODE_ENABLE = yes
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

keyboards/ergotravel/matrix.c

@@ -0,0 +1,482 @@
+/*
+Copyright 2018 Pierre Constantineau
+
+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/>.
+*/
+
+/*
+ * scan matrix
+ */
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include "wait.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "split_util.h"
+#include "pro_micro.h"
+#include "config.h"
+#include "timer.h"
+#include "backlight.h"
+
+#ifdef USE_I2C
+#  include "i2c.h"
+#else // USE_SERIAL
+#  include "serial.h"
+#endif
+
+#ifndef DEBOUNCING_DELAY
+#   define DEBOUNCING_DELAY 5
+#endif
+
+#if (DEBOUNCING_DELAY > 0)
+    static uint16_t debouncing_time;
+    static bool debouncing = false;
+#endif
+
+#if (MATRIX_COLS <= 8)
+#    define print_matrix_header()  print("\nr/c 01234567\n")
+#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop(matrix[i])
+#    define ROW_SHIFTER ((uint8_t)1)
+#else
+#    error "Currently only supports 8 COLS"
+#endif
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+#define ERROR_DISCONNECT_COUNT 5
+
+#define SERIAL_LED_ADDR 0x00
+
+#define ROWS_PER_HAND (MATRIX_ROWS/2)
+
+static uint8_t error_count = 0;
+
+static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+#if (DIODE_DIRECTION == COL2ROW)
+    static void init_cols(void);
+    static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
+    static void unselect_rows(void);
+    static void select_row(uint8_t row);
+    static void unselect_row(uint8_t row);
+#elif (DIODE_DIRECTION == ROW2COL)
+    static void init_rows(void);
+    static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
+    static void unselect_cols(void);
+    static void unselect_col(uint8_t col);
+    static void select_col(uint8_t col);
+#endif
+
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+    matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+    matrix_scan_user();
+}
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+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;
+    debug_matrix = true;
+    debug_mouse = true;
+    // initialize row and col
+    unselect_rows();
+    init_cols();
+
+    TX_RX_LED_INIT;
+
+    // initialize matrix state: all keys off
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+        matrix[i] = 0;
+        matrix_debouncing[i] = 0;
+    }
+
+    matrix_init_quantum();
+
+}
+
+uint8_t _matrix_scan(void)
+{
+    int offset = isLeftHand ? 0 : (ROWS_PER_HAND);
+#if (DIODE_DIRECTION == COL2ROW)
+    // Set row, read cols
+    for (uint8_t current_row = 0; current_row < ROWS_PER_HAND; current_row++) {
+#       if (DEBOUNCING_DELAY > 0)
+            bool matrix_changed = read_cols_on_row(matrix_debouncing+offset, current_row);
+
+            if (matrix_changed) {
+                debouncing = true;
+                debouncing_time = timer_read();
+                PORTD ^= (1 << 2);
+            }
+
+#       else
+            read_cols_on_row(matrix+offset, current_row);
+#       endif
+
+    }
+
+#elif (DIODE_DIRECTION == ROW2COL)
+    // Set col, read rows
+    for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
+#       if (DEBOUNCING_DELAY > 0)
+            bool matrix_changed = read_rows_on_col(matrix_debouncing+offset, current_col);
+            if (matrix_changed) {
+                debouncing = true;
+                debouncing_time = timer_read();
+            }
+#       else
+             read_rows_on_col(matrix+offset, current_col);
+#       endif
+
+    }
+#endif
+
+#   if (DEBOUNCING_DELAY > 0)
+        if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) {
+            for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
+                matrix[i+offset] = matrix_debouncing[i+offset];
+            }
+            debouncing = false;
+        }
+#   endif
+
+    return 1;
+}
+
+#ifdef USE_I2C
+
+// Get rows from other half over i2c
+int i2c_transaction(void) {
+    int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+
+    int err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
+    if (err) goto i2c_error;
+
+    // start of matrix stored at 0x00
+    err = i2c_master_write(0x00);
+    if (err) goto i2c_error;
+
+#ifdef BACKLIGHT_ENABLE
+    // Write backlight level for slave to read
+    err = i2c_master_write(get_backlight_level());
+#else
+    // Write zero, so our byte index is the same
+    err = i2c_master_write(0x00);
+#endif
+    if (err) goto i2c_error;
+
+    // Start read
+    err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ);
+    if (err) goto i2c_error;
+
+    if (!err) {
+        int i;
+        for (i = 0; i < ROWS_PER_HAND-1; ++i) {
+            matrix[slaveOffset+i] = i2c_master_read(I2C_ACK);
+        }
+        matrix[slaveOffset+i] = i2c_master_read(I2C_NACK);
+        i2c_master_stop();
+    } else {
+i2c_error: // the cable is disconnceted, or something else went wrong
+        i2c_reset_state();
+        return err;
+    }
+
+    return 0;
+}
+
+#else // USE_SERIAL
+
+int serial_transaction(void) {
+    int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+
+    if (serial_update_buffers()) {
+        return 1;
+    }
+
+    for (int i = 0; i < ROWS_PER_HAND; ++i) {
+        matrix[slaveOffset+i] = serial_slave_buffer[i];
+    }
+
+#ifdef BACKLIGHT_ENABLE
+    // Write backlight level for slave to read
+    serial_master_buffer[SERIAL_LED_ADDR] = get_backlight_level();
+#endif
+    return 0;
+}
+#endif
+
+uint8_t matrix_scan(void)
+{
+    uint8_t ret = _matrix_scan();
+
+#ifdef USE_I2C
+    if( i2c_transaction() ) {
+#else // USE_SERIAL
+    if( serial_transaction() ) {
+#endif
+        // turn on the indicator led when halves are disconnected
+        TXLED1;
+
+        error_count++;
+
+        if (error_count > ERROR_DISCONNECT_COUNT) {
+            // reset other half if disconnected
+            int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+            for (int i = 0; i < ROWS_PER_HAND; ++i) {
+                matrix[slaveOffset+i] = 0;
+            }
+        }
+    } else {
+        // turn off the indicator led on no error
+        TXLED0;
+        error_count = 0;
+    }
+    matrix_scan_quantum();
+    return ret;
+}
+
+void matrix_slave_scan(void) {
+    _matrix_scan();
+
+    int offset = (isLeftHand) ? 0 : ROWS_PER_HAND;
+
+#ifdef USE_I2C
+#ifdef BACKLIGHT_ENABLE
+    // Read backlight level sent from master and update level on slave
+    backlight_set(i2c_slave_buffer[0]);
+#endif
+    for (int i = 0; i < ROWS_PER_HAND; ++i) {
+        i2c_slave_buffer[i+1] = matrix[offset+i];
+    }
+#else // USE_SERIAL
+    for (int i = 0; i < ROWS_PER_HAND; ++i) {
+        serial_slave_buffer[i] = matrix[offset+i];
+    }
+
+#ifdef BACKLIGHT_ENABLE
+    // Read backlight level sent from master and update level on slave
+    backlight_set(serial_master_buffer[SERIAL_LED_ADDR]);
+#endif
+#endif
+}
+
+bool matrix_is_modified(void)
+{
+    if (debouncing) return false;
+    return true;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix[row] & ((matrix_row_t)1<<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+    return matrix[row];
+}
+
+void matrix_print(void)
+{
+    print("\nr/c 0123456789ABCDEF\n");
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        phex(row); print(": ");
+        pbin_reverse16(matrix_get_row(row));
+        print("\n");
+    }
+}
+
+uint8_t matrix_key_count(void)
+{
+    uint8_t count = 0;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        count += bitpop16(matrix[i]);
+    }
+    return count;
+}
+
+#if (DIODE_DIRECTION == COL2ROW)
+
+static void init_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
+        uint8_t pin = col_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
+{
+    // Store last value of row prior to reading
+    matrix_row_t last_row_value = current_matrix[current_row];
+
+    // Clear data in matrix row
+    current_matrix[current_row] = 0;
+
+    // Select row and wait for row selecton to stabilize
+    select_row(current_row);
+    wait_us(30);
+
+    // For each col...
+    for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+
+        // Select the col pin to read (active low)
+        uint8_t pin = col_pins[col_index];
+        uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
+
+        // Populate the matrix row with the state of the col pin
+        current_matrix[current_row] |=  pin_state ? 0 : (ROW_SHIFTER << col_index);
+    }
+
+    // Unselect row
+    unselect_row(current_row);
+
+    return (last_row_value != current_matrix[current_row]);
+}
+
+static void select_row(uint8_t row)
+{
+    uint8_t pin = row_pins[row];
+    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
+    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+}
+
+static void unselect_row(uint8_t row)
+{
+    uint8_t pin = row_pins[row];
+    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+}
+
+static void unselect_rows(void)
+{
+    for(uint8_t x = 0; x < ROWS_PER_HAND; x++) {
+        uint8_t pin = row_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+#elif (DIODE_DIRECTION == ROW2COL)
+
+static void init_rows(void)
+{
+    for(uint8_t x = 0; x < ROWS_PER_HAND; x++) {
+        uint8_t pin = row_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
+{
+    bool matrix_changed = false;
+
+    // Select col and wait for col selecton to stabilize
+    select_col(current_col);
+    wait_us(30);
+
+    // For each row...
+    for(uint8_t row_index = 0; row_index < ROWS_PER_HAND; row_index++)
+    {
+
+        // Store last value of row prior to reading
+        matrix_row_t last_row_value = current_matrix[row_index];
+
+        // Check row pin state
+        if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
+        {
+            // Pin LO, set col bit
+            current_matrix[row_index] |= (ROW_SHIFTER << current_col);
+        }
+        else
+        {
+            // Pin HI, clear col bit
+            current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
+        }
+
+        // Determine if the matrix changed state
+        if ((last_row_value != current_matrix[row_index]) && !(matrix_changed))
+        {
+            matrix_changed = true;
+        }
+    }
+
+    // Unselect col
+    unselect_col(current_col);
+
+    return matrix_changed;
+}
+
+static void select_col(uint8_t col)
+{
+    uint8_t pin = col_pins[col];
+    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
+    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+}
+
+static void unselect_col(uint8_t col)
+{
+    uint8_t pin = col_pins[col];
+    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+}
+
+static void unselect_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
+        uint8_t pin = col_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+#endif

keyboards/ergotravel/readme.md

@@ -0,0 +1,28 @@
+ErgoTravel
+====
+
+![ErgoTravel](https://i.imgur.com/H9t6Q7b.png)
+
+
+A split ergo 4x6 keyboard with 2 or 3 thumb keys and extra inner macro keys designed by Pierre Constantineau. [More info on the GitHub Repo](https://github.com/jpconstantineau/ErgoTravel).
+
+**Status** The ErgoTravel is currently being beta-tested.  
+
+Keyboard Maintainer: [/u/jpconstantineau](https://github.com/jpconstantineau)  
+
+Hardware Supported: Pro Micro (ATmega32U4) 
+
+Hardware Availability: [Group Buys](https://keyboards.jpconstantineau.com/) or order your own [yourself](https://github.com/jpconstantineau/ErgoTravel/blob/master/OrderingInstructions.md)
+
+
+Make example for this keyboard (after setting up your build environment):
+
+    make ergotravel/rev1:default
+
+Example of flashing this keyboard:
+
+    make ergotravel/rev1:default:avrdude
+
+See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.
+
+A build guide for this keyboard can be found here: [Build Guide](https://github.com/jpconstantineau)

keyboards/ergotravel/rev1/config.h

@@ -0,0 +1,90 @@
+/*
+Copyright 2018 Pierre Constantineau <jpconstantineau@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 REV1_CONFIG_H
+#define REV1_CONFIG_H
+
+#include QMK_KEYBOARD_CONFIG_H
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xCEEB
+#define PRODUCT_ID      0x1256
+#define DEVICE_VER      0x0100
+#define MANUFACTURER    JPConstantineau.com
+#define PRODUCT         ErgoTravel Keyboard
+#define DESCRIPTION     Split 45 percent ergonomic keyboard
+
+/* key matrix size */
+// Rows are doubled-up
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 7
+
+// wiring of each half
+#define MATRIX_ROW_PINS { C6, D7, E6, B4 }
+#define MATRIX_COL_PINS { F5, F6, F7, B1, B3, B2, B6 }
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* number of backlight levels */
+// #define BACKLIGHT_LEVELS 3
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCING_DELAY 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+#define BACKLIGHT_PIN B5
+#define BACKLIGHT_LEVELS 5
+
+/* ws2812 RGB LED */
+#define RGB_DI_PIN D3
+#define RGBLIGHT_TIMER
+#define RGBLED_NUM 12    // Number of LEDs
+#define ws2812_PORTREG  PORTD
+#define ws2812_DDRREG   DDRD
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+// #define NO_DEBUG
+
+/* disable print */
+// #define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+#endif

keyboards/ergotravel/rev1/rev1.c

@@ -0,0 +1,22 @@
+#include "rev1.h"
+
+
+#ifdef SSD1306OLED
+void led_set_kb(uint8_t usb_led) {
+    // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+    led_set_user(usb_led);
+}
+#endif
+
+void matrix_init_kb(void) {
+
+    // // green led on
+    // DDRD |= (1<<5);
+    // PORTD &= ~(1<<5);
+
+    // // orange led on
+    // DDRB |= (1<<0);
+    // PORTB &= ~(1<<0);
+
+	matrix_init_user();
+};

keyboards/ergotravel/rev1/rev1.h

@@ -0,0 +1,37 @@
+#ifndef REV1_H
+#define REV1_H
+
+#include "ergotravel.h"
+
+//void promicro_bootloader_jmp(bool program);
+#include "quantum.h"
+
+
+#ifdef USE_I2C
+#include <stddef.h>
+#ifdef __AVR__
+    #include <avr/io.h>
+    #include <avr/interrupt.h>
+#endif
+#endif
+
+//void promicro_bootloader_jmp(bool program);
+
+#define LAYOUT( \
+    L00, L01, L02, L03, L04, L05,L06,           R00, R01, R02, R03, R04, R05,R06, \
+    L10, L11, L12, L13, L14, L15,L16,           R10, R11, R12, R13, R14, R15,R16, \
+    L20, L21, L22, L23, L24, L25,L26,           R20, R21, R22, R23, R24, R25,R26, \
+        L30, L31, L32, L33, L34, L35,           R30, R31, R32, R33, R34, R35 \
+    ) \
+    { \
+        { L00, L01, L02, L03, L04, L05, L06 }, \
+        { L10, L11, L12, L13, L14, L15, L16 }, \
+        { L20, L21, L22, L23, L24, L25, L26 }, \
+        { L30, L31, L32, L33, L34, L35, KC_NO }, \
+        { R06, R05, R04, R03, R02, R01, R00 }, \
+        { R16, R15, R14, R13, R12, R11, R10 }, \
+        { R26, R25, R24, R23, R22, R21, R20 }, \
+        { R35, R34, R33, R32, R31, R30, KC_NO } \
+    }
+
+#endif

keyboards/ergotravel/rev1/rules.mk

@@ -0,0 +1 @@
+BACKLIGHT_ENABLE = no

keyboards/ergotravel/rules.mk

@@ -0,0 +1,74 @@
+SRC += matrix.c \
+	   i2c.c \
+	   split_util.c \
+	   serial.c
+
+# 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)
+
+# Bootloader
+#     This definition is optional, and if your keyboard supports multiple bootloaders of
+#     different sizes, comment this out, and the correct address will be loaded 
+#     automatically (+60). See bootloader.mk for all options.
+BOOTLOADER = caterina
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in
+#   the appropriate keymap folder that will get included automatically
+#
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+NKRO_ENABLE = no            # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+BACKLIGHT_ENABLE = yes      # Enable keyboard backlight functionality
+MIDI_ENABLE = no            # MIDI controls
+AUDIO_ENABLE = no           # Audio output on port C6
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE = yes       # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+SUBPROJECT_rev1 = yes
+USE_I2C = yes               # I2C is used between the sides
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+CUSTOM_MATRIX = yes
+
+DEFAULT_FOLDER = ergotravel/rev1

keyboards/ergotravel/serial.c

@@ -0,0 +1,228 @@
+/*
+ * WARNING: be careful changing this code, it is very timing dependent
+ */
+
+#ifndef F_CPU
+#define F_CPU 16000000
+#endif
+
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <stdbool.h>
+#include "serial.h"
+
+#ifndef USE_I2C
+
+// Serial pulse period in microseconds. Its probably a bad idea to lower this
+// value.
+#define SERIAL_DELAY 24
+
+uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
+uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
+
+#define SLAVE_DATA_CORRUPT (1<<0)
+volatile uint8_t status = 0;
+
+inline static
+void serial_delay(void) {
+  _delay_us(SERIAL_DELAY);
+}
+
+inline static
+void serial_output(void) {
+  SERIAL_PIN_DDR |= SERIAL_PIN_MASK;
+}
+
+// make the serial pin an input with pull-up resistor
+inline static
+void serial_input(void) {
+  SERIAL_PIN_DDR  &= ~SERIAL_PIN_MASK;
+  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
+}
+
+inline static
+uint8_t serial_read_pin(void) {
+  return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK);
+}
+
+inline static
+void serial_low(void) {
+  SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK;
+}
+
+inline static
+void serial_high(void) {
+  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
+}
+
+void serial_master_init(void) {
+  serial_output();
+  serial_high();
+}
+
+void serial_slave_init(void) {
+  serial_input();
+
+  // Enable INT0
+  EIMSK |= _BV(INT0);
+  // Trigger on falling edge of INT0
+  EICRA &= ~(_BV(ISC00) | _BV(ISC01));
+}
+
+// Used by the master to synchronize timing with the slave.
+static
+void sync_recv(void) {
+  serial_input();
+  // This shouldn't hang if the slave disconnects because the
+  // serial line will float to high if the slave does disconnect.
+  while (!serial_read_pin());
+  serial_delay();
+}
+
+// Used by the slave to send a synchronization signal to the master.
+static
+void sync_send(void) {
+  serial_output();
+
+  serial_low();
+  serial_delay();
+
+  serial_high();
+}
+
+// Reads a byte from the serial line
+static
+uint8_t serial_read_byte(void) {
+  uint8_t byte = 0;
+  serial_input();
+  for ( uint8_t i = 0; i < 8; ++i) {
+    byte = (byte << 1) | serial_read_pin();
+    serial_delay();
+    _delay_us(1);
+  }
+
+  return byte;
+}
+
+// Sends a byte with MSB ordering
+static
+void serial_write_byte(uint8_t data) {
+  uint8_t b = 8;
+  serial_output();
+  while( b-- ) {
+    if(data & (1 << b)) {
+      serial_high();
+    } else {
+      serial_low();
+    }
+    serial_delay();
+  }
+}
+
+// interrupt handle to be used by the slave device
+ISR(SERIAL_PIN_INTERRUPT) {
+  sync_send();
+
+  uint8_t checksum = 0;
+  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
+    serial_write_byte(serial_slave_buffer[i]);
+    sync_send();
+    checksum += serial_slave_buffer[i];
+  }
+  serial_write_byte(checksum);
+  sync_send();
+
+  // wait for the sync to finish sending
+  serial_delay();
+
+  // read the middle of pulses
+  _delay_us(SERIAL_DELAY/2);
+
+  uint8_t checksum_computed = 0;
+  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
+    serial_master_buffer[i] = serial_read_byte();
+    sync_send();
+    checksum_computed += serial_master_buffer[i];
+  }
+  uint8_t checksum_received = serial_read_byte();
+  sync_send();
+
+  serial_input(); // end transaction
+
+  if ( checksum_computed != checksum_received ) {
+    status |= SLAVE_DATA_CORRUPT;
+  } else {
+    status &= ~SLAVE_DATA_CORRUPT;
+  }
+}
+
+inline
+bool serial_slave_DATA_CORRUPT(void) {
+  return status & SLAVE_DATA_CORRUPT;
+}
+
+// Copies the serial_slave_buffer to the master and sends the
+// serial_master_buffer to the slave.
+//
+// Returns:
+// 0 => no error
+// 1 => slave did not respond
+int serial_update_buffers(void) {
+  // this code is very time dependent, so we need to disable interrupts
+  cli();
+
+  // signal to the slave that we want to start a transaction
+  serial_output();
+  serial_low();
+  _delay_us(1);
+
+  // wait for the slaves response
+  serial_input();
+  serial_high();
+  _delay_us(SERIAL_DELAY);
+
+  // check if the slave is present
+  if (serial_read_pin()) {
+    // slave failed to pull the line low, assume not present
+    sei();
+    return 1;
+  }
+
+  // if the slave is present syncronize with it
+  sync_recv();
+
+  uint8_t checksum_computed = 0;
+  // receive data from the slave
+  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
+    serial_slave_buffer[i] = serial_read_byte();
+    sync_recv();
+    checksum_computed += serial_slave_buffer[i];
+  }
+  uint8_t checksum_received = serial_read_byte();
+  sync_recv();
+
+  if (checksum_computed != checksum_received) {
+    sei();
+    return 1;
+  }
+
+  uint8_t checksum = 0;
+  // send data to the slave
+  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
+    serial_write_byte(serial_master_buffer[i]);
+    sync_recv();
+    checksum += serial_master_buffer[i];
+  }
+  serial_write_byte(checksum);
+  sync_recv();
+
+  // always, release the line when not in use
+  serial_output();
+  serial_high();
+
+  sei();
+  return 0;
+}
+
+#endif

keyboards/ergotravel/serial.h

@@ -0,0 +1,26 @@
+#ifndef MY_SERIAL_H
+#define MY_SERIAL_H
+
+#include "config.h"
+#include <stdbool.h>
+
+/* TODO:  some defines for interrupt setup */
+#define SERIAL_PIN_DDR DDRD
+#define SERIAL_PIN_PORT PORTD
+#define SERIAL_PIN_INPUT PIND
+#define SERIAL_PIN_MASK _BV(PD0)
+#define SERIAL_PIN_INTERRUPT INT0_vect
+
+#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
+#define SERIAL_MASTER_BUFFER_LENGTH 1
+
+// Buffers for master - slave communication
+extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
+extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
+
+void serial_master_init(void);
+void serial_slave_init(void);
+int serial_update_buffers(void);
+bool serial_slave_data_corrupt(void);
+
+#endif

keyboards/ergotravel/split_util.c

@@ -0,0 +1,86 @@
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/power.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <avr/eeprom.h>
+#include "split_util.h"
+#include "matrix.h"
+#include "keyboard.h"
+#include "config.h"
+#include "timer.h"
+
+#ifdef USE_I2C
+#  include "i2c.h"
+#else
+#  include "serial.h"
+#endif
+
+volatile bool isLeftHand = true;
+
+static void setup_handedness(void) {
+  #ifdef EE_HANDS
+    isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS);
+  #else
+    // I2C_MASTER_RIGHT is deprecated, use MASTER_RIGHT instead, since this works for both serial and i2c
+    #if defined(I2C_MASTER_RIGHT) || defined(MASTER_RIGHT)
+      isLeftHand = !has_usb();
+    #else
+      isLeftHand = has_usb();
+    #endif
+  #endif
+}
+
+static void keyboard_master_setup(void) {
+#ifdef USE_I2C
+    i2c_master_init();
+#ifdef SSD1306OLED
+    matrix_master_OLED_init ();
+#endif
+#else
+    serial_master_init();
+#endif
+}
+
+static void keyboard_slave_setup(void) {
+  timer_init();
+#ifdef USE_I2C
+    i2c_slave_init(SLAVE_I2C_ADDRESS);
+#else
+    serial_slave_init();
+#endif
+}
+
+bool has_usb(void) {
+   USBCON |= (1 << OTGPADE); //enables VBUS pad
+   _delay_us(5);
+   return (USBSTA & (1<<VBUS));  //checks state of VBUS
+}
+
+void split_keyboard_setup(void) {
+   setup_handedness();
+
+   if (has_usb()) {
+      keyboard_master_setup();
+   } else {
+      keyboard_slave_setup();
+   }
+   sei();
+}
+
+void keyboard_slave_loop(void) {
+   matrix_init();
+
+   while (1) {
+      matrix_slave_scan();
+   }
+}
+
+// this code runs before the usb and keyboard is initialized
+void matrix_setup(void) {
+    split_keyboard_setup();
+
+    if (!has_usb()) {
+        keyboard_slave_loop();
+    }
+}

keyboards/ergotravel/split_util.h

@@ -0,0 +1,20 @@
+#ifndef SPLIT_KEYBOARD_UTIL_H
+#define SPLIT_KEYBOARD_UTIL_H
+
+#include <stdbool.h>
+#include "eeconfig.h"
+
+#define SLAVE_I2C_ADDRESS           0x32
+
+extern volatile bool isLeftHand;
+
+// slave version of matix scan, defined in matrix.c
+void matrix_slave_scan(void);
+
+void split_keyboard_setup(void);
+bool has_usb(void);
+void keyboard_slave_loop(void);
+
+void matrix_master_OLED_init (void);
+
+#endif

keyboards/melody96/keymaps/crilith/keymap.c

@@ -1,83 +1,83 @@
-#include QMK_KEYBOARD_H
-
-enum custom_keycodes {
-  QWERTY = SAFE_RANGE,
-  DYNAMIC_MACRO_RANGE,
-};
-
-#include "dynamic_macro.h"
-
-#define _______ KC_TRNS
-#define KC_REC DYN_REC_START1
-#define KC_DONE DYN_REC_STOP
-#define KC_PLAY DYN_MACRO_PLAY1
-
-const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-
-	LAYOUT(
-    KC_ESC,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_PSCR, KC_HOME, KC_END,  KC_PGUP, KC_PGDN, KC_DEL,
-    KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSLS, KC_BSPC, KC_NLCK, KC_PSLS, KC_PAST, KC_PMNS,
-    KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,          KC_P7,   KC_P8,   KC_P9,   KC_PMNS,
-    KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, KC_ENT,                    KC_P4,   KC_P5,   KC_P6,   KC_PPLS,
-    KC_LSFT, KC_NUBS, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT,          KC_UP,   KC_P1,   KC_P2,   KC_P3,   KC_PENT,
-    KC_LCTL, KC_LGUI, KC_LALT,                            KC_SPC,                             MO(1),   KC_RALT, KC_RCTL,   KC_LEFT, KC_DOWN, KC_RGHT, KC_P0,   KC_PDOT, KC_PENT),
-
-	LAYOUT(
-    RESET,   _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MUTE, KC_VOLD, KC_VOLU, _______, _______, _______,
-    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
-    _______, RGB_TOG, _______, RGB_MOD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, RGB_VAI, RGB_VAD, _______, _______, _______, _______,          _______, _______, _______, _______,
-    BL_TOGG, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,                   _______, _______, _______, _______,
-    _______, _______, _______, _______, BL_DEC,  BL_TOGG, BL_INC,  _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______,
-    _______, _______, _______,                            KC_PLAY,                            _______, KC_REC,  KC_DONE, _______, _______, _______, _______, _______, _______),
-};
-
-const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) {
-	return MACRO_NONE;
-}
-
-void matrix_init_user(void) {
-}
-
-void matrix_scan_user(void) {
-}
-
-bool process_record_user(uint16_t keycode, keyrecord_t *record) {
-    if (!process_record_dynamic_macro(keycode, record)) {
-        return false;
-    }
-	return true;
-}
-
-void led_set_user(uint8_t usb_led) {
-
-	if (usb_led & (1 << USB_LED_NUM_LOCK)) {
-		DDRC |= (1 << 6); PORTC &= ~(1 << 6);
-	} else {
-		DDRC &= ~(1 << 6); PORTC &= ~(1 << 6);
-	}
-
-	if (usb_led & (1 << USB_LED_CAPS_LOCK)) {
-		DDRC |= (1 << 7); PORTC &= ~(1 << 7);
-	} else {
-		DDRC &= ~(1 << 7); PORTC &= ~(1 << 7);
-	}
-
-	if (usb_led & (1 << USB_LED_SCROLL_LOCK)) {
-		DDRB |= (1 << 5); PORTB &= ~(1 << 5);
-	} else {
-		DDRB &= ~(1 << 5); PORTB &= ~(1 << 5);
-	}
-
-	if (usb_led & (1 << USB_LED_COMPOSE)) {
-
-	} else {
-
-	}
-
-	if (usb_led & (1 << USB_LED_KANA)) {
-
-	} else {
-
-	}
-
-}
+#include QMK_KEYBOARD_H
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  DYNAMIC_MACRO_RANGE,
+};
+
+#include "dynamic_macro.h"
+
+#define _______ KC_TRNS
+#define KC_REC DYN_REC_START1
+#define KC_DONE DYN_REC_STOP
+#define KC_PLAY DYN_MACRO_PLAY1
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+	LAYOUT(
+    KC_ESC,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_PSCR, KC_HOME, KC_END,  KC_PGUP, KC_PGDN, KC_DEL,
+    KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSLS, KC_BSPC, KC_NLCK, KC_PSLS, KC_PAST, KC_PMNS,
+    KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,          KC_P7,   KC_P8,   KC_P9,   KC_PMNS,
+    KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, KC_ENT,                    KC_P4,   KC_P5,   KC_P6,   KC_PPLS,
+    KC_LSFT, KC_NUBS, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT,          KC_UP,   KC_P1,   KC_P2,   KC_P3,   KC_PENT,
+    KC_LCTL, KC_LGUI, KC_LALT,                            KC_SPC,                             MO(1),   KC_RALT, KC_RCTL,   KC_LEFT, KC_DOWN, KC_RGHT, KC_P0,   KC_PDOT, KC_PENT),
+
+	LAYOUT(
+    RESET,   _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MUTE, KC_VOLD, KC_VOLU, _______, _______, _______,
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+    _______, RGB_TOG, _______, RGB_MOD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, RGB_VAI, RGB_VAD, _______, _______, _______, _______,          _______, _______, _______, _______,
+    BL_TOGG, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,                   _______, _______, _______, _______,
+    _______, _______, _______, _______, BL_DEC,  BL_TOGG, BL_INC,  _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______,
+    _______, _______, _______,                            KC_PLAY,                            _______, KC_REC,  KC_DONE, _______, _______, _______, _______, _______, _______),
+};
+
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt) {
+	return MACRO_NONE;
+}
+
+void matrix_init_user(void) {
+}
+
+void matrix_scan_user(void) {
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    if (!process_record_dynamic_macro(keycode, record)) {
+        return false;
+    }
+	return true;
+}
+
+void led_set_user(uint8_t usb_led) {
+
+	if (usb_led & (1 << USB_LED_NUM_LOCK)) {
+		DDRC |= (1 << 6); PORTC &= ~(1 << 6);
+	} else {
+		DDRC &= ~(1 << 6); PORTC &= ~(1 << 6);
+	}
+
+	if (usb_led & (1 << USB_LED_CAPS_LOCK)) {
+		DDRC |= (1 << 7); PORTC &= ~(1 << 7);
+	} else {
+		DDRC &= ~(1 << 7); PORTC &= ~(1 << 7);
+	}
+
+	if (usb_led & (1 << USB_LED_SCROLL_LOCK)) {
+		DDRB |= (1 << 5); PORTB &= ~(1 << 5);
+	} else {
+		DDRB &= ~(1 << 5); PORTB &= ~(1 << 5);
+	}
+
+	if (usb_led & (1 << USB_LED_COMPOSE)) {
+
+	} else {
+
+	}
+
+	if (usb_led & (1 << USB_LED_KANA)) {
+
+	} else {
+
+	}
+
+}