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Keyboard: add mint60 keyboard (#3543) 

* add mint60

* change source by reviews
master
eucalyn 2018-08-20 05:26:42 +09:00 committed by Drashna Jaelre
parent 4cc1edbb67
commit 99da48c72b
20 changed files with 1675 additions and 0 deletions
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235
keyboards/mint60/config.h 100644
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/*
Copyright 2018 Eucalyn
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"
#include <serial_config.h>
/* USB Device descriptor parameter */
#define VENDOR_ID 0xFEED
#define PRODUCT_ID 0x0000
#define DEVICE_VER 0x0001
#define MANUFACTURER Eucalyn
#define PRODUCT Mint60
#define DESCRIPTION A row staggered split keyboard
#define PREVENT_STUCK_MODIFIERS
#define TAPPING_FORCE_HOLD
#define TAPPING_TERM 100
/* key matrix size */
#define MATRIX_ROWS 10
#define MATRIX_COLS 8
/*
* Keyboard Matrix Assignments
*
* Change this to how you wired your keyboard
* COLS: AVR pins used for columns, left to right
* ROWS: AVR pins used for rows, top to bottom
* DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
* ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
*
*/
#define MATRIX_ROW_PINS { C6, D7, E6, B4, B5 }
#define MATRIX_COL_PINS { D4, B3, B1, F7, B2, B6, F6, F5 }
#define UNUSED_PINS
/* COL2ROW, ROW2COL, or CUSTOM_MATRIX */
#define DIODE_DIRECTION COL2ROW
// #define BACKLIGHT_PIN B7
// #define BACKLIGHT_BREATHING
// #define BACKLIGHT_LEVELS 3
/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
#define DEBOUNCING_DELAY 5
/* define if matrix has ghost (lacks anti-ghosting diodes) */
//#define MATRIX_HAS_GHOST
/* number of backlight levels */
/* 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
/* If defined, GRAVE_ESC will always act as ESC when CTRL is held.
* This is userful for the Windows task manager shortcut (ctrl+shift+esc).
*/
// #define GRAVE_ESC_CTRL_OVERRIDE
/*
* 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.
*
*/
/* key combination for magic key command */
#define IS_COMMAND() ( \
keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
)
/* 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
/* ws2812 RGB LED */
#define RGB_DI_PIN D3
#define RGBLIGHT_TIMER
#define RGBLED_NUM 8
#define ws2812_PORTREG PORTD
#define ws2812_DDRREG DDRD
#define RGBLIGHT_HUE_STEP 10
#define RGBLIGHT_SAT_STEP 17
#define RGBLIGHT_ANIMATIONS
/*
* 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
/*
* HD44780 LCD Display Configuration
*/
/*
#define LCD_LINES 2 //< number of visible lines of the display
#define LCD_DISP_LENGTH 16 //< visibles characters per line of the display
#define LCD_IO_MODE 1 //< 0: memory mapped mode, 1: IO port mode
#if LCD_IO_MODE
#define LCD_PORT PORTB //< port for the LCD lines
#define LCD_DATA0_PORT LCD_PORT //< port for 4bit data bit 0
#define LCD_DATA1_PORT LCD_PORT //< port for 4bit data bit 1
#define LCD_DATA2_PORT LCD_PORT //< port for 4bit data bit 2
#define LCD_DATA3_PORT LCD_PORT //< port for 4bit data bit 3
#define LCD_DATA0_PIN 4 //< pin for 4bit data bit 0
#define LCD_DATA1_PIN 5 //< pin for 4bit data bit 1
#define LCD_DATA2_PIN 6 //< pin for 4bit data bit 2
#define LCD_DATA3_PIN 7 //< pin for 4bit data bit 3
#define LCD_RS_PORT LCD_PORT //< port for RS line
#define LCD_RS_PIN 3 //< pin for RS line
#define LCD_RW_PORT LCD_PORT //< port for RW line
#define LCD_RW_PIN 2 //< pin for RW line
#define LCD_E_PORT LCD_PORT //< port for Enable line
#define LCD_E_PIN 1 //< pin for Enable line
#endif
*/

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keyboards/mint60/i2c.c 100644
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#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 or 400kHz (see ./i2c.h SCL_CLOCK)
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

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keyboards/mint60/i2c.h 100644
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#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 400kHz
#define SCL_CLOCK 400000L
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

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keyboards/mint60/info.json 100644
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keyboards/mint60/keymaps/default/config.h 100644
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/* Copyright 2018 Eucalyn
*
* 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
/* Use I2C or Serial, not both */
#define USE_SERIAL
// #define USE_I2C
// #define MASTER_RIGHT

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keyboards/mint60/keymaps/default/keymap.c 100644
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/* Copyright 2018 Eucalyn
*
* 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
#ifdef PROTOCOL_LUFA
#include "lufa.h"
#include "split_util.h"
#endif
extern keymap_config_t keymap_config;
#ifdef RGBLIGHT_ENABLE
//Following line allows macro to read current RGB settings
extern rgblight_config_t rgblight_config;
#endif
// Fillers to make layering more clear
#define _______ KC_TRNS
#define XXXXXXX KC_NO
enum custom_keycodes {
RGBRST
};
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
[0] = LAYOUT( \
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, \
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_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_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP, MO(1), \
KC_ESC, KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_BSPC, KC_ENT, LALT(KC_GRV), KC_LEFT,KC_DOWN,KC_RGHT \
),
[1] = 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_DEL, \
RGB_TOG, RGBRST, RGB_HUI, RGB_SAI, RGB_VAI, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, \
XXXXXXX, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, \
_______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, KC_PGUP, _______, \
XXXXXXX, _______, _______, _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_HOME, KC_PGDN, KC_END \
)
};
const uint16_t PROGMEM fn_actions[] = {
};
// define variables for reactive RGB
bool TOG_STATUS = false;
int RGB_current_mode;
const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
{
// MACRODOWN only works in this function
switch(id) {
case 0:
if (record->event.pressed) {
register_code(KC_RSFT);
} else {
unregister_code(KC_RSFT);
}
break;
}
return MACRO_NONE;
};
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
switch (keycode) {
case RGBRST:
#ifdef RGBLIGHT_ENABLE
if (record->event.pressed) {
eeconfig_update_rgblight_default();
rgblight_enable();
RGB_current_mode = rgblight_config.mode;
}
#endif
break;
}
return true;
}
void matrix_init_user(void) {
}
void matrix_scan_user(void) {
}
void led_set_user(uint8_t usb_led) {
}

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keyboards/mint60/keymaps/default/readme.md 100644
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# The default keymap for Mint60

23
keyboards/mint60/keymaps/eucalyn/config.h 100644
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/* Copyright 2018 Eucalyn
*
* 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
/* Use I2C or Serial, not both */
#define USE_SERIAL
// #define USE_I2C
// #define MASTER_RIGHT

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keyboards/mint60/keymaps/eucalyn/keymap.c 100644
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/* Copyright 2018 Eucalyn
*
* 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
#ifdef PROTOCOL_LUFA
#include "lufa.h"
#include "split_util.h"
#endif
extern keymap_config_t keymap_config;
#ifdef RGBLIGHT_ENABLE
//Following line allows macro to read current RGB settings
extern rgblight_config_t rgblight_config;
#endif
// Fillers to make layering more clear
#define _______ KC_TRNS
#define XXXXXXX KC_NO
enum custom_keycodes {
RGBRST
};
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
[0] = LAYOUT( \
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, \
KC_TAB, KC_Q, KC_W, KC_COMM, KC_DOT, KC_SCLN, KC_M, KC_R, KC_D, KC_Y, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, \
KC_CAPS, KC_A, KC_O, KC_E, KC_I, KC_U, KC_G, KC_T, KC_K, KC_S, KC_N, KC_QUOT, KC_ENT, \
KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_F, KC_B, KC_H, KC_J, KC_L, KC_SLSH, KC_RSFT, KC_UP, MO(1), \
KC_ESC, KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_BSPC, KC_ENT, LALT(KC_GRV), KC_LEFT,KC_DOWN,KC_RGHT \
),
[1] = 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_DEL, \
RGB_TOG, RGBRST, RGB_HUI, RGB_SAI, RGB_VAI, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, \
XXXXXXX, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, \
_______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, KC_PGUP, _______, \
XXXXXXX, _______, _______, _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_HOME, KC_PGDN, KC_END \
)
};
const uint16_t PROGMEM fn_actions[] = {
};
// define variables for reactive RGB
bool TOG_STATUS = false;
int RGB_current_mode;
const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
{
// MACRODOWN only works in this function
switch(id) {
case 0:
if (record->event.pressed) {
register_code(KC_RSFT);
} else {
unregister_code(KC_RSFT);
}
break;
}
return MACRO_NONE;
};
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
switch (keycode) {
case RGBRST:
#ifdef RGBLIGHT_ENABLE
if (record->event.pressed) {
eeconfig_update_rgblight_default();
rgblight_enable();
RGB_current_mode = rgblight_config.mode;
}
#endif
break;
}
return true;
}
void matrix_init_user(void) {
}
void matrix_scan_user(void) {
}
void led_set_user(uint8_t usb_led) {
}

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# The Eucalyn keymap for Mint60
It use "Eucalyn" Kemboard Layout.

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/*
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/>.
*/
/*
* scan matrix
*/
#include <stdint.h>
#include <stdbool.h>
#include <avr/io.h>
#include <avr/wdt.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include "print.h"
#include "debug.h"
#include "util.h"
#include "matrix.h"
#include "split_util.h"
#include "pro_micro.h"
#ifdef USE_I2C
# include "i2c.h"
#else // USE_SERIAL
# include "serial.h"
#endif
#ifndef DEBOUNCE
# define DEBOUNCE 5
#endif
#define ERROR_DISCONNECT_COUNT 5
static uint8_t debouncing = DEBOUNCE;
static const int ROWS_PER_HAND = MATRIX_ROWS/2;
static uint8_t error_count = 0;
uint8_t is_master = 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];
static matrix_row_t read_cols(void);
static void init_cols(void);
static void unselect_rows(void);
static void select_row(uint8_t row);
static uint8_t matrix_master_scan(void);
__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;
}
is_master = has_usb();
matrix_init_quantum();
}
uint8_t _matrix_scan(void)
{
// Right hand is stored after the left in the matirx so, we need to offset it
int offset = isLeftHand ? 0 : (ROWS_PER_HAND);
for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
select_row(i);
_delay_us(30); // without this wait read unstable value.
matrix_row_t cols = read_cols();
if (matrix_debouncing[i+offset] != cols) {
matrix_debouncing[i+offset] = cols;
debouncing = DEBOUNCE;
}
unselect_rows();
}
if (debouncing) {
if (--debouncing) {
_delay_ms(1);
} else {
for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
matrix[i+offset] = matrix_debouncing[i+offset];
}
}
}
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;
// 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;
int ret=serial_update_buffers();
if (ret ) {
if(ret==2)RXLED1;
return 1;
}
RXLED0;
for (int i = 0; i < ROWS_PER_HAND; ++i) {
matrix[slaveOffset+i] = serial_slave_buffer[i];
}
return 0;
}
#endif
uint8_t matrix_scan(void)
{
if (is_master) {
matrix_master_scan();
}else{
matrix_slave_scan();
// if(serial_slave_DATA_CORRUPT()){
// TXLED0;
int offset = (isLeftHand) ? ROWS_PER_HAND : 0;
for (int i = 0; i < ROWS_PER_HAND; ++i) {
matrix[offset+i] = serial_master_buffer[i];
}
// }else{
// TXLED1;
// }
matrix_scan_quantum();
}
return 1;
}
uint8_t matrix_master_scan(void) {
int ret = _matrix_scan();
#ifndef KEYBOARD_helix_rev1
int offset = (isLeftHand) ? 0 : ROWS_PER_HAND;
#ifdef USE_I2C
// for (int i = 0; i < ROWS_PER_HAND; ++i) {
/* i2c_slave_buffer[i] = matrix[offset+i]; */
// i2c_slave_buffer[i] = matrix[offset+i];
// }
#else // USE_SERIAL
for (int i = 0; i < ROWS_PER_HAND; ++i) {
serial_master_buffer[i] = matrix[offset+i];
}
#endif
#endif
#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
for (int i = 0; i < ROWS_PER_HAND; ++i) {
/* i2c_slave_buffer[i] = matrix[offset+i]; */
i2c_slave_buffer[i] = matrix[offset+i];
}
#else // USE_SERIAL
for (int i = 0; i < ROWS_PER_HAND; ++i) {
serial_slave_buffer[i] = matrix[offset+i];
}
#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;
}
static void init_cols(void)
{
for(int x = 0; x < MATRIX_COLS; x++) {
_SFR_IO8((col_pins[x] >> 4) + 1) &= ~_BV(col_pins[x] & 0xF);
_SFR_IO8((col_pins[x] >> 4) + 2) |= _BV(col_pins[x] & 0xF);
}
}
static matrix_row_t read_cols(void)
{
matrix_row_t result = 0;
for(int x = 0; x < MATRIX_COLS; x++) {
result |= (_SFR_IO8(col_pins[x] >> 4) & _BV(col_pins[x] & 0xF)) ? 0 : (1 << x);
}
return result;
}
static void unselect_rows(void)
{
for(int x = 0; x < ROWS_PER_HAND; x++) {
_SFR_IO8((row_pins[x] >> 4) + 1) &= ~_BV(row_pins[x] & 0xF);
_SFR_IO8((row_pins[x] >> 4) + 2) |= _BV(row_pins[x] & 0xF);
}
}
static void select_row(uint8_t row)
{
_SFR_IO8((row_pins[row] >> 4) + 1) |= _BV(row_pins[row] & 0xF);
_SFR_IO8((row_pins[row] >> 4) + 2) &= ~_BV(row_pins[row] & 0xF);
}

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/* Copyright 2018 Eucalyn
*
* 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 "mint60.h"
void matrix_init_kb(void) {
// put your keyboard start-up code here
// runs once when the firmware starts up
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_set_kb(uint8_t usb_led) {
// put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
led_set_user(usb_led);
}

59
keyboards/mint60/mint60.h 100644
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/* Copyright 2018 Eucalyn
*
* 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 MINT60_H
#define MINT60_H
#include "quantum.h"
#ifdef RGBLIGHT_ENABLE
//rgb led driver
#include "ws2812.h"
#endif
#ifdef USE_I2C
#include <stddef.h>
#ifdef __AVR__
#include <avr/io.h>
#include <avr/interrupt.h>
#endif
#endif
// This a shortcut to help you visually see your layout.
// The following is an example using the Planck MIT layout
// The first section contains all of the arguments
// The second converts the arguments into a two-dimensional array
#define LAYOUT( \
L00,L01,L02,L03,L04,L05, R00,R01,R02,R03,R04,R05,R06, R07, \
L10, L11,L12,L13,L14,L15, R10,R11,R12,R13,R14,R15,R16,R17, \
L20, L21,L22,L23,L24,L25, R20,R21,R22,R23,R24,R25, R27, \
L30, L31,L32,L33,L34,L35, R30,R31,R32,R33,R34,R35,R36,R37, \
L40,L41, L42, L43, L44, R40, R41, R43, R45,R46,R47 \
) \
{ \
{ L00, L01, L02, L03, L04, L05, KC_NO, KC_NO }, \
{ L10, L11, L12, L13, L14, L15, KC_NO, KC_NO }, \
{ L20, L21, L22, L23, L24, L25, KC_NO, KC_NO }, \
{ L30, L31, L32, L33, L34, L35, KC_NO, KC_NO }, \
{ L40, L41, L42, L43, L44, KC_NO, KC_NO, KC_NO }, \
{ R00, R01, R02, R03, R04, R05, R06, R07 }, \
{ R10, R11, R12, R13, R14, R15, R16, R17 }, \
{ R20, R21, R22, R23, R24, R25, KC_NO, R27 }, \
{ R30, R31, R32, R33, R34, R35, R36, R37 }, \
{ R40, R41, KC_NO, R43, KC_NO, R45, R46, R47 }, \
}
#endif

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# Mint60
![Mint60](https://imgur.com/a/8xnTS4U)
A short description of the keyboard/project
Keyboard Maintainer: [Eucalyn](https://github.com/eucalyn) [@eucalyn_](https://twitter.com/eucalyn_)
Hardware Supported: The Mint60 PCBs, ProMicro supported
Hardware Availability: links to where you can find this hardware
Make example for this keyboard (after setting up your build environment):
make mint60:default
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.

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keyboards/mint60/rules.mk 100644
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SRC += i2c.c \
serial.c \
matrix.c \
split_util.c \
# MCU name
#MCU = at90usb1286
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=4096
# Build Options
# change yes to no to disable
#
BOOTMAGIC_ENABLE = no # Virtual DIP switch configuration(+1000)
MOUSEKEY_ENABLE = no # Mouse keys(+4700)
EXTRAKEY_ENABLE = no # Audio control and System control(+450)
CONSOLE_ENABLE = no # Console for debug(+400)
COMMAND_ENABLE = no # 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 = no # USB Nkey Rollover
BACKLIGHT_ENABLE = no # Enable keyboard backlight functionality on B7 by default
MIDI_ENABLE = no # MIDI support (+2400 to 4200, depending on config)
UNICODE_ENABLE = no # Unicode
BLUETOOTH_ENABLE = no # Enable Bluetooth with the Adafruit EZ-Key HID
AUDIO_ENABLE = no # Audio output on port C6
FAUXCLICKY_ENABLE = no # Use buzzer to emulate clicky switches
HD44780_ENABLE = no # Enable support for HD44780 based LCDs (+400)
CUSTOM_MATRIX = yes
USE_I2C = yes
RGBLIGHT_ENABLE = yes # Enable WS2812 RGB underlight. Do not enable this with audio at the same time.

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/*
* 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"
#ifdef USE_SERIAL
#define _delay_sub_us(x) __builtin_avr_delay_cycles(x)
// Serial pulse period in microseconds.
#define SELECT_SERIAL_SPEED 1
#if SELECT_SERIAL_SPEED == 0
// Very High speed
#define SERIAL_DELAY 4 // micro sec
#define READ_WRITE_START_ADJUST 30 // cycles
#define READ_WRITE_WIDTH_ADJUST 10 // cycles
#elif SELECT_SERIAL_SPEED == 1
// High speed
#define SERIAL_DELAY 6 // micro sec
#define READ_WRITE_START_ADJUST 23 // cycles
#define READ_WRITE_WIDTH_ADJUST 10 // cycles
#elif SELECT_SERIAL_SPEED == 2
// Middle speed
#define SERIAL_DELAY 12 // micro sec
#define READ_WRITE_START_ADJUST 25 // cycles
#define READ_WRITE_WIDTH_ADJUST 10 // cycles
#elif SELECT_SERIAL_SPEED == 3
// Low speed
#define SERIAL_DELAY 24 // micro sec
#define READ_WRITE_START_ADJUST 25 // cycles
#define READ_WRITE_WIDTH_ADJUST 10 // cycles
#elif SELECT_SERIAL_SPEED == 4
// Very Low speed
#define SERIAL_DELAY 50 // micro sec
#define READ_WRITE_START_ADJUST 25 // cycles
#define READ_WRITE_WIDTH_ADJUST 10 // cycles
#else
#error Illegal Serial Speed
#endif
#define SERIAL_DELAY_HALF1 (SERIAL_DELAY/2)
#define SERIAL_DELAY_HALF2 (SERIAL_DELAY - SERIAL_DELAY/2)
#define SLAVE_INT_WIDTH 1
#define SLAVE_INT_RESPONSE_TIME SERIAL_DELAY
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_delay_half1(void) {
_delay_us(SERIAL_DELAY_HALF1);
}
inline static
void serial_delay_half2(void) {
_delay_us(SERIAL_DELAY_HALF2);
}
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_with_pullup(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_with_pullup();
#if SERIAL_PIN_MASK == _BV(PD0)
// Enable INT0
EIMSK |= _BV(INT0);
// Trigger on falling edge of INT0
EICRA &= ~(_BV(ISC00) | _BV(ISC01));
#elif SERIAL_PIN_MASK == _BV(PD2)
// Enable INT2
EIMSK |= _BV(INT2);
// Trigger on falling edge of INT2
EICRA &= ~(_BV(ISC20) | _BV(ISC21));
#else
#error unknown SERIAL_PIN_MASK value
#endif
}
// Used by the sender to synchronize timing with the reciver.
static
void sync_recv(void) {
for (int i = 0; i < SERIAL_DELAY*5 && serial_read_pin(); i++ ) {
}
// 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());
}
// Used by the reciver to send a synchronization signal to the sender.
static
void sync_send(void) {
serial_low();
serial_delay();
serial_high();
}
// Reads a byte from the serial line
static
uint8_t serial_read_byte(void) {
uint8_t byte = 0;
_delay_sub_us(READ_WRITE_START_ADJUST);
for ( uint8_t i = 0; i < 8; ++i) {
serial_delay_half1(); // read the middle of pulses
byte = (byte << 1) | serial_read_pin();
_delay_sub_us(READ_WRITE_WIDTH_ADJUST);
serial_delay_half2();
}
return byte;
}
// Sends a byte with MSB ordering
static
void serial_write_byte(uint8_t data) {
uint8_t b = 1<<7;
while( b ) {
if(data & b) {
serial_high();
} else {
serial_low();
}
b >>= 1;
serial_delay();
}
serial_low(); // sync_send() / senc_recv() need raise edge
}
// interrupt handle to be used by the slave device
ISR(SERIAL_PIN_INTERRUPT) {
serial_output();
// slave send phase
uint8_t checksum = 0;
for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
sync_send();
serial_write_byte(serial_slave_buffer[i]);
checksum += serial_slave_buffer[i];
}
sync_send();
serial_write_byte(checksum);
// slave switch to input
sync_send(); //0
serial_delay_half1(); //1
serial_low(); //2
serial_input_with_pullup(); //2
serial_delay_half1(); //3
// slave recive phase
uint8_t checksum_computed = 0;
for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
sync_recv();
serial_master_buffer[i] = serial_read_byte();
checksum_computed += serial_master_buffer[i];
}
sync_recv();
uint8_t checksum_received = serial_read_byte();
if ( checksum_computed != checksum_received ) {
status |= SLAVE_DATA_CORRUPT;
} else {
status &= ~SLAVE_DATA_CORRUPT;
}
sync_recv(); //weit master output to high
}
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
// 2 => checksum error
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(SLAVE_INT_WIDTH);
// wait for the slaves response
serial_input_with_pullup();
_delay_us(SLAVE_INT_RESPONSE_TIME);
// check if the slave is present
if (serial_read_pin()) {
// slave failed to pull the line low, assume not present
serial_output();
serial_high();
sei();
return 1;
}
// master recive phase
// if the slave is present syncronize with it
uint8_t checksum_computed = 0;
// receive data from the slave
for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
sync_recv();
serial_slave_buffer[i] = serial_read_byte();
checksum_computed += serial_slave_buffer[i];
}
sync_recv();
uint8_t checksum_received = serial_read_byte();
if (checksum_computed != checksum_received) {
serial_output();
serial_high();
sei();
return 2;
}
// master switch to output
sync_recv(); //0
serial_delay(); //1
serial_low(); //3
serial_output(); // 3
serial_delay_half1(); //4
// master send phase
uint8_t checksum = 0;
for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
sync_send();
serial_write_byte(serial_master_buffer[i]);
checksum += serial_master_buffer[i];
}
sync_send();
serial_write_byte(checksum);
// always, release the line when not in use
sync_send();
sei();
return 0;
}
#endif

27
keyboards/mint60/serial.h 100644
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@ -0,0 +1,27 @@
#ifndef SOFT_SERIAL_H
#define SOFT_SERIAL_H
#include <stdbool.h>
// ////////////////////////////////////////////
// Need Soft Serial defines in serial_config.h
// ////////////////////////////////////////////
// ex.
// #define SERIAL_PIN_DDR DDRD
// #define SERIAL_PIN_PORT PORTD
// #define SERIAL_PIN_INPUT PIND
// #define SERIAL_PIN_MASK _BV(PD?) ?=0,2
// #define SERIAL_PIN_INTERRUPT INT?_vect ?=0,2
// #define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
// #define SERIAL_MASTER_BUFFER_LENGTH MATRIX_ROWS/2
// 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 /* SOFT_SERIAL_H */

16
keyboards/mint60/serial_config.h 100644
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@ -0,0 +1,16 @@
#ifndef SOFT_SERIAL_CONFIG_H
#define SOFT_SERIAL_CONFIG_H
/* Soft Serial defines */
#define SERIAL_PIN_DDR DDRD
#define SERIAL_PIN_PORT PORTD
#define SERIAL_PIN_INPUT PIND
#define SERIAL_PIN_MASK _BV(PD2)
#define SERIAL_PIN_INTERRUPT INT2_vect
#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
#define SERIAL_MASTER_BUFFER_LENGTH MATRIX_ROWS/2
//// #error rev2 serial config
#endif /* SOFT_SERIAL_CONFIG_H */

70
keyboards/mint60/split_util.c 100644
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#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"
#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();
#else
serial_master_init();
#endif
}
static void keyboard_slave_setup(void) {
#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();
}
// this code runs before the usb and keyboard is initialized
void matrix_setup(void) {
split_keyboard_setup();
}

19
keyboards/mint60/split_util.h 100644
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#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 matrix_master_OLED_init (void);
#endif