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-rwxr-xr-xkeyboards/ergodox/ez/190hotfix.sh19
-rw-r--r--keyboards/ergodox/ez/Makefile76
-rw-r--r--keyboards/ergodox/ez/config.h65
-rw-r--r--keyboards/ergodox/ez/ez.c85
-rw-r--r--keyboards/ergodox/ez/ez.h122
-rw-r--r--keyboards/ergodox/ez/i2cmaster.h178
-rw-r--r--keyboards/ergodox/ez/matrix.c382
-rw-r--r--keyboards/ergodox/ez/twimaster.c208
-rw-r--r--keyboards/ergodox/ez/util/compile_keymap.py710
-rw-r--r--keyboards/ergodox/ez/util/readme.md3
10 files changed, 1848 insertions, 0 deletions
diff --git a/keyboards/ergodox/ez/190hotfix.sh b/keyboards/ergodox/ez/190hotfix.sh
new file mode 100755
index 0000000000..bdc3adce22
--- /dev/null
+++ b/keyboards/ergodox/ez/190hotfix.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+#a tool to fix broken keymaps as a result of pull request #190
+#changing the declaration of matrix_scan_user() and matrix_init_user()
+#
+#This script will save a copy of the specified keymap as keymap.c.bak
+#and then create a new keymap.c with the definion corrected.
+#this script must be run from the ergodox_ez directory
+if [ $# -ne 1 ]; then
+ echo $0: usage: ./190hotfix keymap_name
+ exit 1
+fi
+
+echo Saving backup as ./keymaps/$1/keymap.c.bak ...
+mv ./keymaps/$1/keymap.c ./keymaps/$1/keymap.c.bak
+
+echo Modifying ./keymaps/$1/keymap.c ...
+cat ./keymaps/$1/keymap.c.bak | sed -r 's/^void \* matrix_/void matrix_/'>./keymaps/$1/keymap.c
+
+echo Complete!
diff --git a/keyboards/ergodox/ez/Makefile b/keyboards/ergodox/ez/Makefile
new file mode 100644
index 0000000000..37e554b304
--- /dev/null
+++ b/keyboards/ergodox/ez/Makefile
@@ -0,0 +1,76 @@
+#----------------------------------------------------------------------------
+# On command line:
+#
+# make = Make software.
+#
+# make clean = Clean out built project files.
+#
+# That's pretty much all you need. To compile, always go make clean,
+# followed by make.
+#
+# For advanced users only:
+# make teensy = Download the hex file to the device, using teensy_loader_cli.
+# (must have teensy_loader_cli installed).
+#
+#----------------------------------------------------------------------------
+
+# # project specific files
+SRC = twimaster.c \
+ matrix.c
+
+# MCU name
+MCU = atmega32u4
+
+# Processor frequency.
+# This will define a symbol, F_CPU, in all source code files equal to the
+# processor frequency in Hz. You can then use this symbol in your source code to
+# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+# automatically to create a 32-bit value in your source code.
+#
+# This will be an integer division of F_USB below, as it is sourced by
+# F_USB after it has run through any CPU prescalers. Note that this value
+# does not *change* the processor frequency - it should merely be updated to
+# reflect the processor speed set externally so that the code can use accurate
+# software delays.
+F_CPU = 16000000
+
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+# This will define a symbol, F_USB, in all source code files equal to the
+# input clock frequency (before any prescaling is performed) in Hz. This value may
+# differ from F_CPU if prescaling is used on the latter, and is required as the
+# raw input clock is fed directly to the PLL sections of the AVR for high speed
+# clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+# at the end, this will be done automatically to create a 32-bit value in your
+# source code.
+#
+# If no clock division is performed on the input clock inside the AVR (via the
+# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+
+# Boot Section Size in *bytes*
+# Teensy halfKay 512
+# Teensy++ halfKay 1024
+# Atmel DFU loader 4096
+# LUFA bootloader 4096
+# USBaspLoader 2048
+OPT_DEFS += -DBOOTLOADER_SIZE=512
+
+
+# Build Options
+# comment out to disable the options.
+#
+
+ifndef QUANTUM_DIR
+ include ../../../Makefile
+endif
diff --git a/keyboards/ergodox/ez/config.h b/keyboards/ergodox/ez/config.h
new file mode 100644
index 0000000000..084a044ee1
--- /dev/null
+++ b/keyboards/ergodox/ez/config.h
@@ -0,0 +1,65 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2013 Oleg Kostyuk <cub.uanic@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 ERGODOX_EZ_CONFIG_H
+#define ERGODOX_EZ_CONFIG_H
+
+#include "../config.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xFEED
+#define PRODUCT_ID 0x1307
+#define DEVICE_VER 0x0001
+#define MANUFACTURER ErgoDox EZ
+#define PRODUCT ErgoDox EZ
+#define DESCRIPTION QMK keyboard firmware for Ergodox EZ
+
+/* key matrix size */
+#define MATRIX_ROWS 14
+#define MATRIX_COLS 6
+
+/* number of backlight levels */
+#define BACKLIGHT_LEVELS 3
+
+#define LED_BRIGHTNESS_LO 15
+#define LED_BRIGHTNESS_HI 255
+
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE 5
+
+/*
+ * 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
+//#define DEBUG_MATRIX_SCAN_RATE
+
+#endif
diff --git a/keyboards/ergodox/ez/ez.c b/keyboards/ergodox/ez/ez.c
new file mode 100644
index 0000000000..e7afc98590
--- /dev/null
+++ b/keyboards/ergodox/ez/ez.c
@@ -0,0 +1,85 @@
+#include "ez.h"
+#include "i2cmaster.h"
+
+bool i2c_initialized = 0;
+uint8_t mcp23018_status = 0x20;
+
+void matrix_init_kb(void) {
+ // keyboard LEDs (see "PWM on ports OC1(A|B|C)" in "teensy-2-0.md")
+ TCCR1A = 0b10101001; // set and configure fast PWM
+ TCCR1B = 0b00001001; // set and configure fast PWM
+
+ // (tied to Vcc for hardware convenience)
+ DDRB &= ~(1<<4); // set B(4) as input
+ PORTB &= ~(1<<4); // set B(4) internal pull-up disabled
+
+ // unused pins - C7, D4, D5, D7, E6
+ // set as input with internal pull-ip enabled
+ DDRC &= ~(1<<7);
+ DDRD &= ~(1<<7 | 1<<5 | 1<<4);
+ DDRE &= ~(1<<6);
+ PORTC |= (1<<7);
+ PORTD |= (1<<7 | 1<<5 | 1<<4);
+ PORTE |= (1<<6);
+
+ ergodox_blink_all_leds();
+
+ matrix_init_user();
+}
+
+void ergodox_blink_all_leds(void)
+{
+ ergodox_led_all_off();
+ ergodox_led_all_set(LED_BRIGHTNESS_HI);
+ ergodox_right_led_1_on();
+ _delay_ms(50);
+ ergodox_right_led_2_on();
+ _delay_ms(50);
+ ergodox_right_led_3_on();
+ _delay_ms(50);
+ ergodox_right_led_1_off();
+ _delay_ms(50);
+ ergodox_right_led_2_off();
+ _delay_ms(50);
+ ergodox_right_led_3_off();
+ //ergodox_led_all_on();
+ //_delay_ms(333);
+ ergodox_led_all_off();
+}
+
+uint8_t init_mcp23018(void) {
+ mcp23018_status = 0x20;
+
+ // I2C subsystem
+ if (i2c_initialized == 0) {
+ i2c_init(); // on pins D(1,0)
+ i2c_initialized++;
+ _delay_ms(1000);
+ }
+
+ // set pin direction
+ // - unused : input : 1
+ // - input : input : 1
+ // - driving : output : 0
+ mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write(IODIRA); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write(0b00000000); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write(0b00111111); if (mcp23018_status) goto out;
+ i2c_stop();
+
+ // set pull-up
+ // - unused : on : 1
+ // - input : on : 1
+ // - driving : off : 0
+ mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write(GPPUA); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write(0b00000000); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write(0b00111111); if (mcp23018_status) goto out;
+
+out:
+ i2c_stop();
+
+ return mcp23018_status;
+}
+
+
diff --git a/keyboards/ergodox/ez/ez.h b/keyboards/ergodox/ez/ez.h
new file mode 100644
index 0000000000..db4ec867bc
--- /dev/null
+++ b/keyboards/ergodox/ez/ez.h
@@ -0,0 +1,122 @@
+#ifndef ERGODOX_EZ_H
+#define ERGODOX_EZ_H
+
+#include "quantum.h"
+#include <stdint.h>
+#include <stdbool.h>
+#include "i2cmaster.h"
+#include <util/delay.h>
+
+#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
+#define CPU_16MHz 0x00
+
+// I2C aliases and register addresses (see "mcp23018.md")
+#define I2C_ADDR 0b0100000
+#define I2C_ADDR_WRITE ( (I2C_ADDR<<1) | I2C_WRITE )
+#define I2C_ADDR_READ ( (I2C_ADDR<<1) | I2C_READ )
+#define IODIRA 0x00 // i/o direction register
+#define IODIRB 0x01
+#define GPPUA 0x0C // GPIO pull-up resistor register
+#define GPPUB 0x0D
+#define GPIOA 0x12 // general purpose i/o port register (write modifies OLAT)
+#define GPIOB 0x13
+#define OLATA 0x14 // output latch register
+#define OLATB 0x15
+
+extern uint8_t mcp23018_status;
+
+void init_ergodox(void);
+void ergodox_blink_all_leds(void);
+uint8_t init_mcp23018(void);
+uint8_t ergodox_left_leds_update(void);
+
+#define LED_BRIGHTNESS_LO 15
+#define LED_BRIGHTNESS_HI 255
+
+
+inline void ergodox_board_led_on(void) { DDRD |= (1<<6); PORTD |= (1<<6); }
+inline void ergodox_right_led_1_on(void) { DDRB |= (1<<5); PORTB |= (1<<5); }
+inline void ergodox_right_led_2_on(void) { DDRB |= (1<<6); PORTB |= (1<<6); }
+inline void ergodox_right_led_3_on(void) { DDRB |= (1<<7); PORTB |= (1<<7); }
+inline void ergodox_right_led_on(uint8_t led) { DDRB |= (1<<(led+4)); PORTB |= (1<<(led+4)); }
+
+inline void ergodox_board_led_off(void) { DDRD &= ~(1<<6); PORTD &= ~(1<<6); }
+inline void ergodox_right_led_1_off(void) { DDRB &= ~(1<<5); PORTB &= ~(1<<5); }
+inline void ergodox_right_led_2_off(void) { DDRB &= ~(1<<6); PORTB &= ~(1<<6); }
+inline void ergodox_right_led_3_off(void) { DDRB &= ~(1<<7); PORTB &= ~(1<<7); }
+inline void ergodox_right_led_off(uint8_t led) { DDRB &= ~(1<<(led+4)); PORTB &= ~(1<<(led+4)); }
+
+inline void ergodox_led_all_on(void)
+{
+ ergodox_board_led_on();
+ ergodox_right_led_1_on();
+ ergodox_right_led_2_on();
+ ergodox_right_led_3_on();
+}
+
+inline void ergodox_led_all_off(void)
+{
+ ergodox_board_led_off();
+ ergodox_right_led_1_off();
+ ergodox_right_led_2_off();
+ ergodox_right_led_3_off();
+}
+
+inline void ergodox_right_led_1_set(uint8_t n) { OCR1A = n; }
+inline void ergodox_right_led_2_set(uint8_t n) { OCR1B = n; }
+inline void ergodox_right_led_3_set(uint8_t n) { OCR1C = n; }
+inline void ergodox_right_led_set(uint8_t led, uint8_t n) {
+ (led == 1) ? (OCR1A = n) :
+ (led == 2) ? (OCR1B = n) :
+ (OCR1C = n);
+}
+
+inline void ergodox_led_all_set(uint8_t n)
+{
+ ergodox_right_led_1_set(n);
+ ergodox_right_led_2_set(n);
+ ergodox_right_led_3_set(n);
+}
+
+#define KEYMAP( \
+ \
+ /* left hand, spatial positions */ \
+ k00,k01,k02,k03,k04,k05,k06, \
+ k10,k11,k12,k13,k14,k15,k16, \
+ k20,k21,k22,k23,k24,k25, \
+ k30,k31,k32,k33,k34,k35,k36, \
+ k40,k41,k42,k43,k44, \
+ k55,k56, \
+ k54, \
+ k53,k52,k51, \
+ \
+ /* right hand, spatial positions */ \
+ k07,k08,k09,k0A,k0B,k0C,k0D, \
+ k17,k18,k19,k1A,k1B,k1C,k1D, \
+ k28,k29,k2A,k2B,k2C,k2D, \
+ k37,k38,k39,k3A,k3B,k3C,k3D, \
+ k49,k4A,k4B,k4C,k4D, \
+ k57,k58, \
+ k59, \
+ k5C,k5B,k5A ) \
+ \
+ /* matrix positions */ \
+ { \
+ { k00, k10, k20, k30, k40, KC_NO }, \
+ { k01, k11, k21, k31, k41, k51 }, \
+ { k02, k12, k22, k32, k42, k52 }, \
+ { k03, k13, k23, k33, k43, k53 }, \
+ { k04, k14, k24, k34, k44, k54 }, \
+ { k05, k15, k25, k35, KC_NO, k55 }, \
+ { k06, k16, KC_NO, k36, KC_NO, k56 }, \
+ \
+ { k07, k17, KC_NO, k37,KC_NO, k57 }, \
+ { k08, k18, k28, k38,KC_NO, k58 }, \
+ { k09, k19, k29, k39, k49, k59 }, \
+ { k0A, k1A, k2A, k3A, k4A, k5A }, \
+ { k0B, k1B, k2B, k3B, k4B, k5B }, \
+ { k0C, k1C, k2C, k3C, k4C, k5C }, \
+ { k0D, k1D, k2D, k3D, k4D, KC_NO } \
+ }
+
+#endif
diff --git a/keyboards/ergodox/ez/i2cmaster.h b/keyboards/ergodox/ez/i2cmaster.h
new file mode 100644
index 0000000000..3917b9e6c0
--- /dev/null
+++ b/keyboards/ergodox/ez/i2cmaster.h
@@ -0,0 +1,178 @@
+#ifndef _I2CMASTER_H
+#define _I2CMASTER_H 1
+/*************************************************************************
+* Title: C include file for the I2C master interface
+* (i2cmaster.S or twimaster.c)
+* Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury
+* File: $Id: i2cmaster.h,v 1.10 2005/03/06 22:39:57 Peter Exp $
+* Software: AVR-GCC 3.4.3 / avr-libc 1.2.3
+* Target: any AVR device
+* Usage: see Doxygen manual
+**************************************************************************/
+
+#ifdef DOXYGEN
+/**
+ @defgroup pfleury_ic2master I2C Master library
+ @code #include <i2cmaster.h> @endcode
+
+ @brief I2C (TWI) Master Software Library
+
+ Basic routines for communicating with I2C slave devices. This single master
+ implementation is limited to one bus master on the I2C bus.
+
+ This I2c library is implemented as a compact assembler software implementation of the I2C protocol
+ which runs on any AVR (i2cmaster.S) and as a TWI hardware interface for all AVR with built-in TWI hardware (twimaster.c).
+ Since the API for these two implementations is exactly the same, an application can be linked either against the
+ software I2C implementation or the hardware I2C implementation.
+
+ Use 4.7k pull-up resistor on the SDA and SCL pin.
+
+ Adapt the SCL and SDA port and pin definitions and eventually the delay routine in the module
+ i2cmaster.S to your target when using the software I2C implementation !
+
+ Adjust the CPU clock frequence F_CPU in twimaster.c or in the Makfile when using the TWI hardware implementaion.
+
+ @note
+ The module i2cmaster.S is based on the Atmel Application Note AVR300, corrected and adapted
+ to GNU assembler and AVR-GCC C call interface.
+ Replaced the incorrect quarter period delays found in AVR300 with
+ half period delays.
+
+ @author Peter Fleury pfleury@gmx.ch http://jump.to/fleury
+
+ @par API Usage Example
+ The following code shows typical usage of this library, see example test_i2cmaster.c
+
+ @code
+
+ #include <i2cmaster.h>
+
+
+ #define Dev24C02 0xA2 // device address of EEPROM 24C02, see datasheet
+
+ int main(void)
+ {
+ unsigned char ret;
+
+ i2c_init(); // initialize I2C library
+
+ // write 0x75 to EEPROM address 5 (Byte Write)
+ i2c_start_wait(Dev24C02+I2C_WRITE); // set device address and write mode
+ i2c_write(0x05); // write address = 5
+ i2c_write(0x75); // write value 0x75 to EEPROM
+ i2c_stop(); // set stop conditon = release bus
+
+
+ // read previously written value back from EEPROM address 5
+ i2c_start_wait(Dev24C02+I2C_WRITE); // set device address and write mode
+
+ i2c_write(0x05); // write address = 5
+ i2c_rep_start(Dev24C02+I2C_READ); // set device address and read mode
+
+ ret = i2c_readNak(); // read one byte from EEPROM
+ i2c_stop();
+
+ for(;;);
+ }
+ @endcode
+
+*/
+#endif /* DOXYGEN */
+
+/**@{*/
+
+#if (__GNUC__ * 100 + __GNUC_MINOR__) < 304
+#error "This library requires AVR-GCC 3.4 or later, update to newer AVR-GCC compiler !"
+#endif
+
+#include <avr/io.h>
+
+/** defines the data direction (reading from I2C device) in i2c_start(),i2c_rep_start() */
+#define I2C_READ 1
+
+/** defines the data direction (writing to I2C device) in i2c_start(),i2c_rep_start() */
+#define I2C_WRITE 0
+
+
+/**
+ @brief initialize the I2C master interace. Need to be called only once
+ @param void
+ @return none
+ */
+extern void i2c_init(void);
+
+
+/**
+ @brief Terminates the data transfer and releases the I2C bus
+ @param void
+ @return none
+ */
+extern void i2c_stop(void);
+
+
+/**
+ @brief Issues a start condition and sends address and transfer direction
+
+ @param addr address and transfer direction of I2C device
+ @retval 0 device accessible
+ @retval 1 failed to access device
+ */
+extern unsigned char i2c_start(unsigned char addr);
+
+
+/**
+ @brief Issues a repeated start condition and sends address and transfer direction
+
+ @param addr address and transfer direction of I2C device
+ @retval 0 device accessible
+ @retval 1 failed to access device
+ */
+extern unsigned char i2c_rep_start(unsigned char addr);
+
+
+/**
+ @brief Issues a start condition and sends address and transfer direction
+
+ If device is busy, use ack polling to wait until device ready
+ @param addr address and transfer direction of I2C device
+ @return none
+ */
+extern void i2c_start_wait(unsigned char addr);
+
+
+/**
+ @brief Send one byte to I2C device
+ @param data byte to be transfered
+ @retval 0 write successful
+ @retval 1 write failed
+ */
+extern unsigned char i2c_write(unsigned char data);
+
+
+/**
+ @brief read one byte from the I2C device, request more data from device
+ @return byte read from I2C device
+ */
+extern unsigned char i2c_readAck(void);
+
+/**
+ @brief read one byte from the I2C device, read is followed by a stop condition
+ @return byte read from I2C device
+ */
+extern unsigned char i2c_readNak(void);
+
+/**
+ @brief read one byte from the I2C device
+
+ Implemented as a macro, which calls either i2c_readAck or i2c_readNak
+
+ @param ack 1 send ack, request more data from device<br>
+ 0 send nak, read is followed by a stop condition
+ @return byte read from I2C device
+ */
+extern unsigned char i2c_read(unsigned char ack);
+#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak();
+
+
+/**@}*/
+#endif
diff --git a/keyboards/ergodox/ez/matrix.c b/keyboards/ergodox/ez/matrix.c
new file mode 100644
index 0000000000..a19bab90b2
--- /dev/null
+++ b/keyboards/ergodox/ez/matrix.c
@@ -0,0 +1,382 @@
+/*
+
+Note for ErgoDox EZ customizers: Here be dragons!
+This is not a file you want to be messing with.
+All of the interesting stuff for you is under keymaps/ :)
+Love, Erez
+
+Copyright 2013 Oleg Kostyuk <cub.uanic@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/>.
+*/
+
+/*
+ * scan matrix
+ */
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include "wait.h"
+#include "action_layer.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "ez.h"
+#include "i2cmaster.h"
+#ifdef DEBUG_MATRIX_SCAN_RATE
+#include "timer.h"
+#endif
+
+/*
+ * This constant define not debouncing time in msecs, but amount of matrix
+ * scan loops which should be made to get stable debounced results.
+ *
+ * On Ergodox matrix scan rate is relatively low, because of slow I2C.
+ * Now it's only 317 scans/second, or about 3.15 msec/scan.
+ * According to Cherry specs, debouncing time is 5 msec.
+ *
+ * And so, there is no sense to have DEBOUNCE higher than 2.
+ */
+
+#ifndef DEBOUNCE
+# define DEBOUNCE 5
+#endif
+static uint8_t debouncing = DEBOUNCE;
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+static matrix_row_t read_cols(uint8_t row);
+static void init_cols(void);
+static void unselect_rows(void);
+static void select_row(uint8_t row);
+
+static uint8_t mcp23018_reset_loop;
+
+#ifdef DEBUG_MATRIX_SCAN_RATE
+uint32_t matrix_timer;
+uint32_t matrix_scan_count;
+#endif
+
+
+__attribute__ ((weak))
+void matrix_init_user(void) {}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {}
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+ matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+ matrix_scan_user();
+}
+
+inline
+uint8_t matrix_rows(void)
+{
+ return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+ return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+ // initialize row and col
+
+ mcp23018_status = init_mcp23018();
+
+
+ unselect_rows();
+ init_cols();
+
+ // initialize matrix state: all keys off
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+ matrix[i] = 0;
+ matrix_debouncing[i] = 0;
+ }
+
+#ifdef DEBUG_MATRIX_SCAN_RATE
+ matrix_timer = timer_read32();
+ matrix_scan_count = 0;
+#endif
+
+ matrix_init_kb();
+
+}
+
+void matrix_power_up(void) {
+ mcp23018_status = init_mcp23018();
+
+ unselect_rows();
+ init_cols();
+
+ // initialize matrix state: all keys off
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+ matrix[i] = 0;
+ matrix_debouncing[i] = 0;
+ }
+
+#ifdef DEBUG_MATRIX_SCAN_RATE
+ matrix_timer = timer_read32();
+ matrix_scan_count = 0;
+#endif
+
+}
+
+uint8_t matrix_scan(void)
+{
+ if (mcp23018_status) { // if there was an error
+ if (++mcp23018_reset_loop == 0) {
+ // since mcp23018_reset_loop is 8 bit - we'll try to reset once in 255 matrix scans
+ // this will be approx bit more frequent than once per second
+ print("trying to reset mcp23018\n");
+ mcp23018_status = init_mcp23018();
+ if (mcp23018_status) {
+ print("left side not responding\n");
+ } else {
+ print("left side attached\n");
+ ergodox_blink_all_leds();
+ }
+ }
+ }
+
+#ifdef DEBUG_MATRIX_SCAN_RATE
+ matrix_scan_count++;
+
+ uint32_t timer_now = timer_read32();
+ if (TIMER_DIFF_32(timer_now, matrix_timer)>1000) {
+ print("matrix scan frequency: ");
+ pdec(matrix_scan_count);
+ print("\n");
+
+ matrix_timer = timer_now;
+ matrix_scan_count = 0;
+ }
+#endif
+
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ select_row(i);
+ wait_us(30); // without this wait read unstable value.
+ matrix_row_t cols = read_cols(i);
+ if (matrix_debouncing[i] != cols) {
+ matrix_debouncing[i] = cols;
+ if (debouncing) {
+ debug("bounce!: "); debug_hex(debouncing); debug("\n");
+ }
+ debouncing = DEBOUNCE;
+ }
+ unselect_rows();
+ }
+
+ if (debouncing) {
+ if (--debouncing) {
+ wait_us(1);
+ // this should be wait_ms(1) but has been left as-is at EZ's request
+ } else {
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ matrix[i] = matrix_debouncing[i];
+ }
+ }
+ }
+
+ matrix_scan_quantum();
+
+ return 1;
+}
+
+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;
+}
+
+/* Column pin configuration
+ *
+ * Teensy
+ * col: 0 1 2 3 4 5
+ * pin: F0 F1 F4 F5 F6 F7
+ *
+ * MCP23018
+ * col: 0 1 2 3 4 5
+ * pin: B5 B4 B3 B2 B1 B0
+ */
+static void init_cols(void)
+{
+ // init on mcp23018
+ // not needed, already done as part of init_mcp23018()
+
+ // init on teensy
+ // Input with pull-up(DDR:0, PORT:1)
+ DDRF &= ~(1<<7 | 1<<6 | 1<<5 | 1<<4 | 1<<1 | 1<<0);
+ PORTF |= (1<<7 | 1<<6 | 1<<5 | 1<<4 | 1<<1 | 1<<0);
+}
+
+static matrix_row_t read_cols(uint8_t row)
+{
+ if (row < 7) {
+ if (mcp23018_status) { // if there was an error
+ return 0;
+ } else {
+ uint8_t data = 0;
+ mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write(GPIOB); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_start(I2C_ADDR_READ); if (mcp23018_status) goto out;
+ data = i2c_readNak();
+ data = ~data;
+ out:
+ i2c_stop();
+ return data;
+ }
+ } else {
+ // read from teensy
+ return
+ (PINF&(1<<0) ? 0 : (1<<0)) |
+ (PINF&(1<<1) ? 0 : (1<<1)) |
+ (PINF&(1<<4) ? 0 : (1<<2)) |
+ (PINF&(1<<5) ? 0 : (1<<3)) |
+ (PINF&(1<<6) ? 0 : (1<<4)) |
+ (PINF&(1<<7) ? 0 : (1<<5)) ;
+ }
+}
+
+/* Row pin configuration
+ *
+ * Teensy
+ * row: 7 8 9 10 11 12 13
+ * pin: B0 B1 B2 B3 D2 D3 C6
+ *
+ * MCP23018
+ * row: 0 1 2 3 4 5 6
+ * pin: A0 A1 A2 A3 A4 A5 A6
+ */
+static void unselect_rows(void)
+{
+ // unselect on mcp23018
+ if (mcp23018_status) { // if there was an error
+ // do nothing
+ } else {
+ // set all rows hi-Z : 1
+ mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write(GPIOA); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write( 0xFF
+ & ~(0<<7)
+ ); if (mcp23018_status) goto out;
+ out:
+ i2c_stop();
+ }
+
+ // unselect on teensy
+ // Hi-Z(DDR:0, PORT:0) to unselect
+ DDRB &= ~(1<<0 | 1<<1 | 1<<2 | 1<<3);
+ PORTB &= ~(1<<0 | 1<<1 | 1<<2 | 1<<3);
+ DDRD &= ~(1<<2 | 1<<3);
+ PORTD &= ~(1<<2 | 1<<3);
+ DDRC &= ~(1<<6);
+ PORTC &= ~(1<<6);
+}
+
+static void select_row(uint8_t row)
+{
+ if (row < 7) {
+ // select on mcp23018
+ if (mcp23018_status) { // if there was an error
+ // do nothing
+ } else {
+ // set active row low : 0
+ // set other rows hi-Z : 1
+ mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write(GPIOA); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write( 0xFF & ~(1<<row)
+ & ~(0<<7)
+ ); if (mcp23018_status) goto out;
+ out:
+ i2c_stop();
+ }
+ } else {
+ // select on teensy
+ // Output low(DDR:1, PORT:0) to select
+ switch (row) {
+ case 7:
+ DDRB |= (1<<0);
+ PORTB &= ~(1<<0);
+ break;
+ case 8:
+ DDRB |= (1<<1);
+ PORTB &= ~(1<<1);
+ break;
+ case 9:
+ DDRB |= (1<<2);
+ PORTB &= ~(1<<2);
+ break;
+ case 10:
+ DDRB |= (1<<3);
+ PORTB &= ~(1<<3);
+ break;
+ case 11:
+ DDRD |= (1<<2);
+ PORTD &= ~(1<<3);
+ break;
+ case 12:
+ DDRD |= (1<<3);
+ PORTD &= ~(1<<3);
+ break;
+ case 13:
+ DDRC |= (1<<6);
+ PORTC &= ~(1<<6);
+ break;
+ }
+ }
+}
+
diff --git a/keyboards/ergodox/ez/twimaster.c b/keyboards/ergodox/ez/twimaster.c
new file mode 100644
index 0000000000..f91c08e6e4
--- /dev/null
+++ b/keyboards/ergodox/ez/twimaster.c
@@ -0,0 +1,208 @@
+/*************************************************************************
+* Title: I2C master library using hardware TWI interface
+* Author: Peter Fleury <pfleury@gmx.ch> http://jump.to/fleury
+* File: $Id: twimaster.c,v 1.3 2005/07/02 11:14:21 Peter Exp $
+* Software: AVR-GCC 3.4.3 / avr-libc 1.2.3
+* Target: any AVR device with hardware TWI
+* Usage: API compatible with I2C Software Library i2cmaster.h
+**************************************************************************/
+#include <inttypes.h>
+#include <compat/twi.h>
+
+#include <i2cmaster.h>
+
+
+/* define CPU frequency in Mhz here if not defined in Makefile */
+#ifndef F_CPU
+#define F_CPU 16000000UL
+#endif
+
+/* I2C clock in Hz */
+#define SCL_CLOCK 400000L
+
+
+/*************************************************************************
+ Initialization of the I2C bus interface. Need to be called only once
+*************************************************************************/
+void i2c_init(void)
+{
+ /* initialize TWI clock
+ * minimal values in Bit Rate Register (TWBR) and minimal Prescaler
+ * bits in the TWI Status Register should give us maximal possible
+ * I2C bus speed - about 444 kHz
+ *
+ * for more details, see 20.5.2 in ATmega16/32 secification
+ */
+
+ TWSR = 0; /* no prescaler */
+ TWBR = 10; /* must be >= 10 for stable operation */
+
+}/* i2c_init */
+
+
+/*************************************************************************
+ Issues a start condition and sends address and transfer direction.
+ return 0 = device accessible, 1= failed to access device
+*************************************************************************/
+unsigned char i2c_start(unsigned char address)
+{
+ uint8_t twst;
+
+ // send START condition
+ TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
+
+ // wait until transmission completed
+ while(!(TWCR & (1<<TWINT)));
+
+ // check value of TWI Status Register. Mask prescaler bits.
+ twst = TW_STATUS & 0xF8;
+ if ( (twst != TW_START) && (twst != TW_REP_START)) return 1;
+
+ // send device address
+ TWDR = address;
+ TWCR = (1<<TWINT) | (1<<TWEN);
+
+ // wail until transmission completed and ACK/NACK has been received
+ while(!(TWCR & (1<<TWINT)));
+
+ // check value of T