~ruther/qmk_firmware

6ba39689d3ed14a69f161cf08c48004eb4e0daea — TerryMathews 6 years ago 6848002
[Keyboard] Initial support for TKC M0LLY (#5087)

* Initial support for TKC M0LLY

* Remove depreciated Magic Keys define

* Update keyboards/m0lly/README.md

Co-Authored-By: TerryMathews <terry@terrymathews.net>

* Update keyboards/m0lly/README.md

Co-Authored-By: TerryMathews <terry@terrymathews.net>

* Update keyboards/m0lly/info.json

Co-Authored-By: TerryMathews <terry@terrymathews.net>

* Update keyboards/m0lly/info.json

Co-Authored-By: TerryMathews <terry@terrymathews.net>

* Update keyboards/m0lly/m0lly.h

Co-Authored-By: TerryMathews <terry@terrymathews.net>

* Suggested review changes
A keyboards/m0lly/README.md => keyboards/m0lly/README.md +17 -0
@@ 0,0 1,17 @@
The Key Company M0LLY

[TKC M0LLY](https://cdn.shopify.com/s/files/1/1679/2319/files/Molly_Terminal_1024x1024.jpg?v=1529067702)


The Key Company's M0LLY keyboard is inspired by the Apple Macintosh M0110A, and utilizes the AT90USB1286 microcontroller.

Keyboard Maintainer: [Terry Mathews](https://github.com/TerryMathews/)  
Hardware Supported: TKC M0LLY  
Hardware Availability: [TheKey.Company](https://thekey.company) 


Make example for this keyboard (after setting up your build environment):

    make m0lly:default

See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

A keyboards/m0lly/config.h => keyboards/m0lly/config.h +178 -0
@@ 0,0 1,178 @@
/*
Copyright 2012 Jun Wako <wakojun@gmail.com>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#pragma once

#include "config_common.h"

/* USB Device descriptor parameter */
#define VENDOR_ID       0xFEED
#define PRODUCT_ID      0x6060
#define DEVICE_VER      0x0003
#define MANUFACTURER    The Key Company
#define PRODUCT         M0lly
#define DESCRIPTION     QMK keyboard firmware for M0lly

/* key matrix size */
#define MATRIX_ROWS 5
#define MATRIX_COLS 19

// ROWS: Top to bottom, COLS: Left to right
/* Row pin configuration
*/
#define MATRIX_ROW_PINS { F2, F1, F0, E1, E0 }
/* Column pin configuration
 */
#define MATRIX_COL_PINS { A0, A1, A2, A3, A4, A5, A6, A7, C7, C6, C5, C4, C3, C2, C1, C0, F5, F6, F7 }
#define UNUSED_PINS

/* COL2ROW or ROW2COL */
#define DIODE_DIRECTION COL2ROW

#define BACKLIGHT_PIN B6
#define BACKLIGHT_BREATHING
#define BACKLIGHT_LEVELS 3

/* Underlight configuration
 */
#define RGB_DI_PIN D7
#define RGBLIGHT_ANIMATIONS
#define RGBLED_NUM 30     // Number of LEDs
#define RGBLIGHT_HUE_STEP 5
#define RGBLIGHT_SAT_STEP 10
#define RGBLIGHT_VAL_STEP 10

/* define if matrix has ghost */
//#define MATRIX_HAS_GHOST

/* 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

/*
 * Force NKRO
 *
 * Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
 * state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the
 * makefile for this to work.)
 *
 * If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N)
 * until the next keyboard reset.
 *
 * NKRO may prevent your keystrokes from being detected in the BIOS, but it is
 * fully operational during normal computer usage.
 *
 * For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N)
 * or via bootmagic (hold SPACE+N while plugging in the keyboard). Once set by
 * bootmagic, NKRO mode will always be enabled until it is toggled again during a
 * power-up.
 *
 */
//#define FORCE_NKRO

/*
 * Magic Key Options
 *
 * Magic keys are hotkey commands that allow control over firmware functions of
 * the keyboard. They are best used in combination with the HID Listen program,
 * found here: https://www.pjrc.com/teensy/hid_listen.html
 *
 * The options below allow the magic key functionality to be changed. This is
 * useful if your keyboard/keypad is missing keys and you want magic key support.
 *
 */

/* control how magic key switches layers */
//#define MAGIC_KEY_SWITCH_LAYER_WITH_FKEYS  true
//#define MAGIC_KEY_SWITCH_LAYER_WITH_NKEYS  true
//#define MAGIC_KEY_SWITCH_LAYER_WITH_CUSTOM false

/* override magic key keymap */
//#define MAGIC_KEY_SWITCH_LAYER_WITH_FKEYS
//#define MAGIC_KEY_SWITCH_LAYER_WITH_NKEYS
//#define MAGIC_KEY_SWITCH_LAYER_WITH_CUSTOM
//#define MAGIC_KEY_HELP1          H
//#define MAGIC_KEY_HELP2          SLASH
//#define MAGIC_KEY_DEBUG          D
//#define MAGIC_KEY_DEBUG_MATRIX   X
//#define MAGIC_KEY_DEBUG_KBD      K
//#define MAGIC_KEY_DEBUG_MOUSE    M
//#define MAGIC_KEY_VERSION        V
//#define MAGIC_KEY_STATUS         S
//#define MAGIC_KEY_CONSOLE        C
//#define MAGIC_KEY_LAYER0_ALT1    ESC
//#define MAGIC_KEY_LAYER0_ALT2    GRAVE
//#define MAGIC_KEY_LAYER0         0
//#define MAGIC_KEY_LAYER1         1
//#define MAGIC_KEY_LAYER2         2
//#define MAGIC_KEY_LAYER3         3
//#define MAGIC_KEY_LAYER4         4
//#define MAGIC_KEY_LAYER5         5
//#define MAGIC_KEY_LAYER6         6
//#define MAGIC_KEY_LAYER7         7
//#define MAGIC_KEY_LAYER8         8
//#define MAGIC_KEY_LAYER9         9
//#define MAGIC_KEY_BOOTLOADER     PAUSE
//#define MAGIC_KEY_LOCK           CAPS
//#define MAGIC_KEY_EEPROM         E
//#define MAGIC_KEY_NKRO           N
//#define MAGIC_KEY_SLEEP_LED      Z

/*
 * 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

/*
 * MIDI options
 */

/* Prevent use of disabled MIDI features in the keymap */
//#define MIDI_ENABLE_STRICT 1

/* enable basic MIDI features:
   - MIDI notes can be sent when in Music mode is on
*/
//#define MIDI_BASIC

/* enable advanced MIDI features:
   - MIDI notes can be added to the keymap
   - Octave shift and transpose
   - Virtual sustain, portamento, and modulation wheel
   - etc.
*/
//#define MIDI_ADVANCED

/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
//#define MIDI_TONE_KEYCODE_OCTAVES 1

A keyboards/m0lly/i2c.c => keyboards/m0lly/i2c.c +166 -0
@@ 0,0 1,166 @@
#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<<TWSTA) | (1<<TWEN);

  i2c_delay();

  // check that we started successfully
  if ( (TW_STATUS != TW_START) && (TW_STATUS != TW_REP_START))
    return 1;

  // send device address
  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

A keyboards/m0lly/i2c.h => keyboards/m0lly/i2c.h +49 -0
@@ 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  800000L

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

A keyboards/m0lly/info.json => keyboards/m0lly/info.json +97 -0
@@ 0,0 1,97 @@
{
    "keyboard_name": "TKC M0LLY", 
    "url": "", 
    "maintainer": "qmk", 
    "width": 19.5, 
    "height": 5, 
    "layouts": {
        "LAYOUT_all": {
            "layout": [
				{"label":"~", "x":0, "y":0},
				{"label":"!", "x":1, "y":0},
				{"label":"@", "x":2, "y":0},
				{"label":"#", "x":3, "y":0},
				{"label":"$", "x":4, "y":0},
				{"label":"%", "x":5, "y":0},
				{"label":"^", "x":6, "y":0},
				{"label":"&", "x":7, "y":0},
				{"label":"*", "x":8, "y":0},
				{"label":"(", "x":9, "y":0},
				{"label":")", "x":10, "y":0},
				{"label":"_", "x":11, "y":0},
				{"label":"+", "x":12, "y":0},
				{"label":"Bksp", "x":13, "y":0},
				{"x":14, "y":0},
				{"label":"Num", "x":15.5, "y":0},
				{"label":"/", "x":16.5, "y":0},
				{"label":"*", "x":17.5, "y":0},
				{"label":"-", "x":18.5, "y":0},
				{"label":"Tab", "x":0, "y":1, "w":1.5},
				{"label":"Q", "x":1.5, "y":1},
				{"label":"W", "x":2.5, "y":1},
				{"label":"E", "x":3.5, "y":1},
				{"label":"R", "x":4.5, "y":1},
				{"label":"T", "x":5.5, "y":1},
				{"label":"Y", "x":6.5, "y":1},
				{"label":"U", "x":7.5, "y":1},
				{"label":"I", "x":8.5, "y":1},
				{"label":"O", "x":9.5, "y":1},
				{"label":"P", "x":10.5, "y":1},
				{"label":"{", "x":11.5, "y":1},
				{"label":"}", "x":12.5, "y":1},
				{"label":"|", "x":13.5, "y":1, "w":1.5},
				{"label":"7", "x":15.5, "y":1},
				{"label":"8", "x":16.5, "y":1},
				{"label":"9", "x":17.5, "y":1},
				{"x":18.5, "y":1},
				{"label":"Caps Lock", "x":0, "y":2, "w":1.75},
				{"label":"A", "x":1.75, "y":2},
				{"label":"S", "x":2.75, "y":2},
				{"label":"D", "x":3.75, "y":2},
				{"label":"F", "x":4.75, "y":2},
				{"label":"G", "x":5.75, "y":2},
				{"label":"H", "x":6.75, "y":2},
				{"label":"J", "x":7.75, "y":2},
				{"label":"K", "x":8.75, "y":2},
				{"label":"L", "x":9.75, "y":2},
				{"label":":", "x":10.75, "y":2},
				{"label":"\"", "x":11.75, "y":2},
				{"label":"ISO ~", "x":12.75, "y":2},
				{"label":"Enter", "x":13.75, "y":2, "w":1.25},
				{"label":"4", "x":15.5, "y":2},
				{"label":"5", "x":16.5, "y":2},
				{"label":"6", "x":17.5, "y":2},
				{"label":"+", "x":18.5, "y":2},
				{"label":"Shift", "x":0, "y":3, "w":1.25},
				{"x":1.25, "y":3},
				{"label":"Z", "x":2.25, "y":3},
				{"label":"X", "x":3.25, "y":3},
				{"label":"C", "x":4.25, "y":3},
				{"label":"V", "x":5.25, "y":3},
				{"label":"B", "x":6.25, "y":3},
				{"label":"N", "x":7.25, "y":3},
				{"label":"M", "x":8.25, "y":3},
				{"label":"<", "x":9.25, "y":3},
				{"label":">", "x":10.25, "y":3},
				{"label":"?", "x":11.25, "y":3},
				{"label":"Shift", "x":12.25, "y":3, "w":1.75},
				{"x":14, "y":3},
				{"label":"1", "x":15.5, "y":3},
				{"label":"2", "x":16.5, "y":3},
				{"label":"3", "x":17.5, "y":3},
				{"x":18.5, "y":3},
				{"label":"Ctrl", "x":0, "y":4, "w":1.25},
				{"label":"Win", "x":1.25, "y":4, "w":1.25},
				{"label":"Alt", "x":2.5, "y":4, "w":1.25},
				{"x":3.75, "y":4, "w":6.25},
				{"label":"Alt", "x":10, "y":4, "w":1.25},
				{"label":"Win", "x":11.25, "y":4, "w":1.25},
				{"label":"FN", "x":12.5, "y":4, "w":1.25},
				{"label":"Ctrl", "x":13.75, "y":4, "w":1.25},
				{"label":"0", "x":15.5, "y":4},
				{"x":16.5, "y":4},
				{"label":".", "x":17.5, "y":4},
				{"label":"Ent", "x":18.5, "y":4}]
        }
    }
}

A keyboards/m0lly/keymaps/default/config.h => keyboards/m0lly/keymaps/default/config.h +24 -0
@@ 0,0 1,24 @@
/* Copyright 2017 Mathias Andersson <wraul@dbox.se>
 *
 * 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/>.
 */

#pragma once

#define USE_I2C
#define SSD1306OLED
//#define OLED_ROTATE180
#define SSD1306_ADDRESS 0x3C

// place overrides here

A keyboards/m0lly/keymaps/default/keymap.c => keyboards/m0lly/keymaps/default/keymap.c +149 -0
@@ 0,0 1,149 @@
/* Copyright 2017 Mathias Andersson <wraul@dbox.se>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include QMK_KEYBOARD_H
#include "LUFA/Drivers/Peripheral/TWI.h"
#include "i2c.h"
#include "ssd1306.h"


//Layers

enum {
  BASE = 0,
  FUNCTION,
};

bool screenWorks = 0;

//13 characters max without re-writing the "Layer: " format in iota_gfx_task_user()
static char layer_lookup[][14] = {"Base","Function"};



const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  /* Keymap BASE: (Base Layer) Default Layer
   * 
   * ,-----------------------------------------------------------. .-------------------.
   * | ~ | 1 |  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Backsp | |NumL| /  | *  | -  |
   * |-----------------------------------------------------------| |-------------------|
   * |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|  \  | | 7  | 8  | 9  |    |
   * |-----------------------------------------------------------| |--------------| +  |
   * |CAPS   |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Return | | 4  | 5  | 6  |    |
   * |-----------------------------------------------------------| |-------------------|
   * |Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  .|  /|Shift     | | 1  | 2  | 3  | Ent|
   * |-----------------------------------------------------------| |--------------|    |
   * |Ctrl|Gui |Alt |      Space           | Alt | Win |FN  |Ctr | |   0     | .  |    |
   * `-----------------------------------------------------------' '-------------------'
   */
  [BASE] = LAYOUT_all(
    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_BSPC, XXXXXXX, 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,   XXXXXXX, \
    KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, XXXXXXX, KC_ENT,           KC_P4,   KC_P5,   KC_P6,   KC_PPLS, \
    KC_LSFT, XXXXXXX, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, XXXXXXX,          KC_P1,   KC_P2,   KC_P3,   XXXXXXX, \
    KC_LCTL, KC_LGUI, KC_LALT,                   KC_SPC,                        KC_RALT, KC_RWIN, MO(FUNCTION), KC_RCTL,                   KC_P0,   XXXXXXX, KC_PDOT, KC_PENT  \
  ),
  /* Keymap FUNCTION: (Function Layer)
   * 
   * ,-----------------------------------------------------------. .-------------------.
   * |   |   |   |   |   |   |   |   |   |   |   |   |   | RESET | |    |    |    |    |
   * |-----------------------------------------------------------| |-------------------|
   * |     |   |   |   |   |   |   |   |   |   |   |   |   |     | |    |    |    |    |
   * |-----------------------------------------------------------| |-------------------|
   * |       |   |   |   |   |   |   |   |   |   |   |   |       | |    |    |    |    |
   * |-----------------------------------------------------------| |-------------------|
   * |        |Tog|Mod|Hu+|Hu-|Sa+|Sa-|Va+|Va-|Stp|   |          | |    |    |    |    |
   * |-----------------------------------------------------------| |--------------|    |
   * |    |    |    |                      |     |     |    |    | |         |    |    |
   * `-----------------------------------------------------------' '-------------------'
   */
  [FUNCTION] = LAYOUT_all(
    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET,   XXXXXXX, _______, _______, _______, _______, \
    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, XXXXXXX, \
    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, XXXXXXX, _______,          _______, _______, _______, _______, \
    _______, XXXXXXX, RGB_TOG, RGB_MOD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, RGB_VAI, RGB_VAD, BL_STEP, _______, _______, XXXXXXX,          _______, _______, _______, XXXXXXX, \
    _______, _______, _______,                   _______,                        _______, _______, MO(FUNCTION), _______,                  _______, XXXXXXX, _______, _______  \
  ),
};

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
  return true;
}

void led_set_user(uint8_t usb_led) {

}

void matrix_init_user(void) {
  #ifdef USE_I2C
    i2c_master_init();
    #ifdef SSD1306OLED
      // calls code for the SSD1306 OLED
      _delay_ms(400);
      TWI_Init(TWI_BIT_PRESCALE_1, TWI_BITLENGTH_FROM_FREQ(1, 800000));
      if ( iota_gfx_init() ) { // turns on the display
        screenWorks = 1;
      }
    #endif
  #endif
  #ifdef AUDIO_ENABLE
    startup_user();
  #endif
}

void matrix_scan_user(void) {
  #ifdef SSD1306OLED
    if ( screenWorks ) {
      iota_gfx_task();  // this is what updates the display continuously
    };
  #endif
}

void matrix_update(struct CharacterMatrix *dest,
                          const struct CharacterMatrix *source) {
  if (memcmp(dest->display, source->display, sizeof(dest->display))) {
    memcpy(dest->display, source->display, sizeof(dest->display));
    dest->dirty = true;
  }
}

void iota_gfx_task_user(void) {
  #if DEBUG_TO_SCREEN
    if (debug_enable) {
      return;
    }
  #endif

  struct CharacterMatrix matrix;

  matrix_clear(&matrix);
  matrix_write_P(&matrix, PSTR("TKC M0LLY"));

  uint8_t layer = biton32(layer_state);

  char buf[40];
  snprintf(buf,sizeof(buf), "Undef-%d", layer);
  matrix_write_P(&matrix, PSTR("\nLayer: "));
  matrix_write(&matrix, layer_lookup[layer]);

  // Host Keyboard LED Status
  char led[40];
    snprintf(led, sizeof(led), "\n\n%s  %s  %s",
            (host_keyboard_leds() & (1<<USB_LED_NUM_LOCK)) ? "NUMLOCK" : "       ",
            (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) ? "CAPS" : "    ",
            (host_keyboard_leds() & (1<<USB_LED_SCROLL_LOCK)) ? "SCLK" : "    ");
  matrix_write(&matrix, led);
  matrix_update(&display, &matrix);
}

A keyboards/m0lly/m0lly.c => keyboards/m0lly/m0lly.c +69 -0
@@ 0,0 1,69 @@
/* Copyright 2017 Mathias Andersson <wraul@dbox.se>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include "m0lly.h"
#include "led.h"

void matrix_init_kb(void) {
    // put your keyboard start-up code here
    // runs once when the firmware starts up
    led_init_ports();
    matrix_init_user();
}

void matrix_scan_kb(void) {
    // put your looping keyboard code here
    // runs every cycle (a lot)

    matrix_scan_user();
}

bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
    // put your per-action keyboard code here
    // runs for every action, just before processing by the firmware

    return process_record_user(keycode, record);
}

void led_init_ports(void) {
	DDRD |= (1<<2) | (1<<3) | (1<<4); // OUT
	DDRB |= (1<<7); // OUT
	PORTB |= (1<<7);
}

void led_set_kb(uint8_t usb_led) {
//    led_set_user(usb_led);
	if (usb_led & (1<<USB_LED_NUM_LOCK)) {
        // Turn numlock on
		PORTD |= (1<<2);
    } else {
        // Turn numlock off
	    PORTD &= ~(1<<2);
    }
	if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
        // Turn capslock on
		PORTD |= (1<<3);
    } else {
        // Turn capslock off
		PORTD &= ~(1<<3);
    }
	if (usb_led & (1<<USB_LED_SCROLL_LOCK)) {
        // Turn scrolllock on
	    PORTD |= (1<<4);
    } else {
        // Turn scrolllock off
		PORTD &= ~(1<<4);
    }
}
\ No newline at end of file

A keyboards/m0lly/m0lly.h => keyboards/m0lly/m0lly.h +32 -0
@@ 0,0 1,32 @@
/* Copyright 2017 Mathias Andersson <wraul@dbox.se>
 *
 * 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/>.
 */
#pragma once

#include "quantum.h"

#define LAYOUT_all( \
    K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, K0E, K0F, K0G, K0H, K0I, \
    K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D,      K1F, K1G, K1H, K1I, \
    K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, K2C, K2D,      K2F, K2G, K2H, K2I, \
    K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3C,    K3D,   K3F, K3G, K3H, K3I, \
    K40, K41, K42,           K45,                        K49, K4B, K4C, K4D,   K4F, K4G, K4H, K4I  \
) { \
    { K00,   K01,   K02,   K03,   K04,   K05,   K06,   K07,   K08,   K09,   K0A,   K0B,   K0C,   K0D,   K0E,   K0F,   K0G, K0H, K0I }, \
    { K10,   K11,   K12,   K13,   K14,   K15,   K16,   K17,   K18,   K19,   K1A,   K1B,   K1C,   K1D,   KC_NO, K1F,   K1G, K1H, K1I }, \
    { K20,   K21,   K22,   K23,   K24,   K25,   K26,   K27,   K28,   K29,   K2A,   K2B,   K2C,   K2D,   KC_NO, K2F,   K2G, K2H, K2I }, \
    { K30,   K31,   K32,   K33,   K34,   K35,   K36,   K37,   K38,   K39,   K3A,   K3B,   K3C,   K3D,   KC_NO, K3F,   K3G, K3H, K3I }, \
    { K40,   K41,   K42,   KC_NO, KC_NO, K45,   KC_NO, KC_NO, KC_NO, K49,   KC_NO,   K4B,   K4C,   K4D,   KC_NO,   K4F, K4G, K4H, K4I }  \
}

A keyboards/m0lly/rules.mk => keyboards/m0lly/rules.mk +72 -0
@@ 0,0 1,72 @@

# MCU name
MCU = at90usb1286

# 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


# Bootloader selection
#   Teensy       halfkay
#   Pro Micro    caterina
#   Atmel DFU    atmel-dfu
#   LUFA DFU     lufa-dfu
#   QMK DFU      qmk-dfu
#   atmega32a    bootloadHID
BOOTLOADER = atmel-dfu


# Build Options
#   change yes to no to disable
#
BOOTMAGIC_ENABLE = yes      # Virtual DIP switch configuration(+1000)
MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
CONSOLE_ENABLE = yes        # Console for debug(+400)
COMMAND_ENABLE = yes        # Commands for debug and configuration
# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
NKRO_ENABLE = yes           # USB Nkey Rollover
BACKLIGHT_ENABLE = yes      # Enable keyboard backlight functionality on B7 by default
RGBLIGHT_ENABLE = yes       # Enable WS2812 RGB underlight. Do not enable this with audio at the same time.
MIDI_ENABLE = no            # MIDI controls
UNICODE_ENABLE = no         # Unicode
BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
AUDIO_ENABLE = no           # Audio output on port C6

SRC = i2c.c \
	  ssd1306.c