--- /dev/null
+#----------------------------------------------------------------------------
+# On command line:
+#
+# make all = Make software.
+#
+# make clean = Clean out built project files.
+#
+# make coff = Convert ELF to AVR COFF.
+#
+# make extcoff = Convert ELF to AVR Extended COFF.
+#
+# make program = Download the hex file to the device.
+# Please customize your programmer settings(PROGRAM_CMD)
+#
+# make teensy = Download the hex file to the device, using teensy_loader_cli.
+# (must have teensy_loader_cli installed).
+#
+# make dfu = Download the hex file to the device, using dfu-programmer (must
+# have dfu-programmer installed).
+#
+# make flip = Download the hex file to the device, using Atmel FLIP (must
+# have Atmel FLIP installed).
+#
+# make dfu-ee = Download the eeprom file to the device, using dfu-programmer
+# (must have dfu-programmer installed).
+#
+# make flip-ee = Download the eeprom file to the device, using Atmel FLIP
+# (must have Atmel FLIP installed).
+#
+# make debug = Start either simulavr or avarice as specified for debugging,
+# with avr-gdb or avr-insight as the front end for debugging.
+#
+# make filename.s = Just compile filename.c into the assembler code only.
+#
+# make filename.i = Create a preprocessed source file for use in submitting
+# bug reports to the GCC project.
+#
+# To rebuild project do "make clean" then "make all".
+#----------------------------------------------------------------------------
+
+# Target file name (without extension).
+TARGET = ergodox
+
+
+# Directory common source filess exist
+TOP_DIR = ../..
+
+# Directory keyboard dependent files exist
+TARGET_DIR = .
+
+# # project specific files
+SRC = ergodox.c \
+ twimaster.c \
+ backlight.c
+
+ifdef KEYMAP
+ SRC := keymaps/keymap_$(KEYMAP).c $(SRC)
+else
+ SRC := keymaps/keymap_default.c $(SRC)
+endif
+
+CONFIG_H = config.h
+
+# MCU name
+#MCU = at90usb1287
+MCU = atmega32u4
+
+# Processor frequency.
+# This will define a symbol, F_CPU, in all source code files equal to the
+# processor frequency in Hz. You can then use this symbol in your source code to
+# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+# automatically to create a 32-bit value in your source code.
+#
+# This will be an integer division of F_USB below, as it is sourced by
+# F_USB after it has run through any CPU prescalers. Note that this value
+# does not *change* the processor frequency - it should merely be updated to
+# reflect the processor speed set externally so that the code can use accurate
+# software delays.
+F_CPU = 16000000
+
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+# This will define a symbol, F_USB, in all source code files equal to the
+# input clock frequency (before any prescaling is performed) in Hz. This value may
+# differ from F_CPU if prescaling is used on the latter, and is required as the
+# raw input clock is fed directly to the PLL sections of the AVR for high speed
+# clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+# at the end, this will be done automatically to create a 32-bit value in your
+# source code.
+#
+# If no clock division is performed on the input clock inside the AVR (via the
+# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# 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
+# comment out to disable the options.
+#
+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 = yes # Breathing sleep LED during USB suspend
+# NKRO_ENABLE = yes # USB Nkey Rollover - not yet supported in LUFA
+# BACKLIGHT_ENABLE = yes # Enable keyboard backlight functionality
+# MIDI_ENABLE = YES # MIDI controls
+# UNICODE_ENABLE = YES # Unicode
+# BLUETOOTH_ENABLE = yes # Enable Bluetooth with the Adafruit EZ-Key HID
+
+
+# Optimize size but this may cause error "relocation truncated to fit"
+#EXTRALDFLAGS = -Wl,--relax
+
+# Search Path
+VPATH += $(TARGET_DIR)
+VPATH += $(TOP_DIR)
+
+include $(TOP_DIR)/quantum.mk
+
--- /dev/null
+# TMK Generic
+
+* I'm not sure what the Magic + H does.
+ Is this a menu that will pop up regardless of what platform and program is open?
+
+ Yes, this is sort of debugging.
+ Use PJRC's [hid_listen](https://www.pjrc.com/teensy/hid_listen.html) to see debug messages.
+
+# TMK/Ergodox specific
+
+* I would like to configure my leds to indicate the active layer.
+ I read that can be done, but I haven't seen an example for this firmware.
+ Can someone please post an example or a link?
+
+ TMK for Ergodox have support for seven (!) led's:
+ - three on right
+ - three on left (see http://geekhack.org/index.php?topic=22780.msg873819#msg873819 for more details)
+ - Teensy onboard led as well
+
+ Any of these leds can be used as layer indicator or NumLock/CapsLock/ScrollLock led.
+
+ [Here is example](https://github.com/cub-uanic/tmk_keyboard/blob/cub_layout/keyboard/ergodox/matrix.c#L121-167)
+ how you can assign some meaning to each led.
+ In this code only left leds are used to show layers, but you can
+ [change `led_set()`](https://github.com/cub-uanic/tmk_keyboard/blob/cub_layout/keyboard/ergodox/led.c)
+ and do anything you want with all leds.
+
+# Firmware
+
+Q: Where to get binaries?
+A:
+
+Q: Where to get sources?
+A:
+
+Q: How to compile?
+A:
+
+
+# Layouts
+
+description of layouts in base firmware binaries
+
+
+# Things TO-DO
+
+- [ ] Flash NumLock led only when "numpad" layer is active
+- [ ] Command (in terms of IS_COMMAND) to switch to no-leds mode
+- [ ] Increase count of ACTION keys
+- [ ] Fix command_state() onboard led: it should flash only when kbd in some specific mode (CONSOLE || MOUSE)
+- [ ] ergodox_blink_all_leds() should save current state of leds, and restore after blink. initial state of all leds == off
+- [ ] add support for pseudo-backlight (reversed LEDs) + docs/photo
+- [ ] command to debug all LEDs (on/off/blink)
+- [ ] proper (in-core) implementation of DEBUG_MATRIX_SCAN_RATE (non-Ergodox specific)
+- [ ] proper (in-core) support for per-layer fn_actions[]
+
--- /dev/null
+
+#include <avr/io.h>
+#include "backlight.h"
+
+#define CHANNEL OCR1C
+
+void backlight_init_ports()
+{
+
+ // Setup PB7 as output and output low.
+ DDRB |= (1<<7);
+ PORTB &= ~(1<<7);
+
+ // Use full 16-bit resolution.
+ ICR1 = 0xFFFF;
+
+ // I could write a wall of text here to explain... but TL;DW
+ // Go read the ATmega32u4 datasheet.
+ // And this: http://blog.saikoled.com/post/43165849837/secret-konami-cheat-code-to-high-resolution-pwm-on
+
+ // Pin PB7 = OCR1C (Timer 1, Channel C)
+ // Compare Output Mode = Clear on compare match, Channel C = COM1C1=1 COM1C0=0
+ // (i.e. start high, go low when counter matches.)
+ // WGM Mode 14 (Fast PWM) = WGM13=1 WGM12=1 WGM11=1 WGM10=0
+ // Clock Select = clk/1 (no prescaling) = CS12=0 CS11=0 CS10=1
+
+ TCCR1A = _BV(COM1C1) | _BV(WGM11); // = 0b00001010;
+ TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
+
+ backlight_init();
+}
+
+void backlight_set(uint8_t level)
+{
+ if ( level == 0 )
+ {
+ // Turn off PWM control on PB7, revert to output low.
+ TCCR1A &= ~(_BV(COM1C1));
+ CHANNEL = 0x0;
+ // Prevent backlight blink on lowest level
+ PORTB &= ~(_BV(PORTB7));
+ }
+ else if ( level == BACKLIGHT_LEVELS )
+ {
+ // Prevent backlight blink on lowest level
+ PORTB &= ~(_BV(PORTB7));
+ // Turn on PWM control of PB7
+ TCCR1A |= _BV(COM1C1);
+ // Set the brightness
+ CHANNEL = 0xFFFF;
+ }
+ else
+ {
+ // Prevent backlight blink on lowest level
+ PORTB &= ~(_BV(PORTB7));
+ // Turn on PWM control of PB7
+ TCCR1A |= _BV(COM1C1);
+ // Set the brightness
+ CHANNEL = 0xFFFF >> ((BACKLIGHT_LEVELS - level) * ((BACKLIGHT_LEVELS + 1) / 2));
+ }
+}
\ No newline at end of file
--- /dev/null
+/*
+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 CONFIG_H
+#define CONFIG_H
+
+#include "config_common.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 t.m.k. keyboard firmware for Ergodox
+
+/* key matrix size */
+#define MATRIX_ROWS 14
+#define MATRIX_COLS 6
+
+#define MOUSEKEY_DELAY 100
+#define MOUSEKEY_INTERVAL 20
+#define MOUSEKEY_MAX_SPEED 3
+#define MOUSEKEY_TIME_TO_MAX 10
+
+#define COLS (int []){ F1, F0, B0, C7, F4, F5, F6, F7, D4, D6, B4, D7 }
+#define ROWS (int []){ D0, D5, B5, B6 }
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* number of backlight levels */
+#define BACKLIGHT_LEVELS 3
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE 2
+#define TAPPING_TERM 230
+#define TAPPING_TOGGLE 2
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+ keyboard_report->mods == (MOD_BIT(KC_LCTL) | MOD_BIT(KC_RCTL)) || \
+ keyboard_report->mods == (MOD_BIT(KC_LSFT) | MOD_BIT(KC_RSFT)) \
+)
+
+/*
+ * 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
--- /dev/null
+#include "ergodox.h"
+#include "i2cmaster.h"
+
+bool i2c_initialized = 0;
+uint8_t mcp23018_status = 0x20;
+
+bool ergodox_left_led_1 = 0; // left top
+bool ergodox_left_led_2 = 0; // left middle
+bool ergodox_left_led_3 = 0; // left bottom
+
+void * matrix_init_user(void) {
+
+};
+
+void * matrix_scan_user(void) {
+
+};
+
+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();
+
+ if (matrix_init_user) {
+ (*matrix_init_user)();
+ }
+};
+
+void * matrix_scan_kb(void) {
+
+ if (matrix_scan_user) {
+ (*matrix_scan_user)();
+ }
+};
+
+
+void ergodox_blink_all_leds(void)
+{
+ ergodox_led_all_off();
+ ergodox_led_all_set(LED_BRIGHTNESS_HI);
+ 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();
+
+ if (!mcp23018_status) mcp23018_status = ergodox_left_leds_update();
+
+ return mcp23018_status;
+}
+
+uint8_t ergodox_left_leds_update(void) {
+ if (mcp23018_status) { // if there was an error
+ return mcp23018_status;
+ }
+
+ // set logical value (doesn't matter on inputs)
+ // - unused : hi-Z : 1
+ // - input : hi-Z : 1
+ // - driving : hi-Z : 1
+ mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write(OLATA); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write(0b11111111
+ & ~(ergodox_left_led_3<<LEFT_LED_3_SHIFT)
+ ); if (mcp23018_status) goto out;
+ mcp23018_status = i2c_write(0b11111111
+ & ~(ergodox_left_led_2<<LEFT_LED_2_SHIFT)
+ & ~(ergodox_left_led_1<<LEFT_LED_1_SHIFT)
+ ); if (mcp23018_status) goto out;
+
+out:
+ i2c_stop();
+ return mcp23018_status;
+}
+
--- /dev/null
+#ifndef PLANCK_H
+#define PLANCK_H
+
+#include "matrix.h"
+#include "keymap_common.h"
+#include "backlight.h"
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.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 31
+#define LED_BRIGHTNESS_HI 255
+
+#define LEFT_LED_1_SHIFT 7 // in MCP23018 port B
+#define LEFT_LED_2_SHIFT 6 // in MCP23018 port B
+#define LEFT_LED_3_SHIFT 7 // in MCP23018 port A
+
+extern bool ergodox_left_led_1; // left top
+extern bool ergodox_left_led_2; // left middle
+extern bool ergodox_left_led_3; // left bottom
+
+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_left_led_1_on(void) { ergodox_left_led_1 = 1; }
+inline void ergodox_left_led_2_on(void) { ergodox_left_led_2 = 1; }
+inline void ergodox_left_led_3_on(void) { ergodox_left_led_3 = 1; }
+
+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_left_led_1_off(void) { ergodox_left_led_1 = 0; }
+inline void ergodox_left_led_2_off(void) { ergodox_left_led_2 = 0; }
+inline void ergodox_left_led_3_off(void) { ergodox_left_led_3 = 0; }
+
+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();
+ ergodox_left_led_1_on();
+ ergodox_left_led_2_on();
+ ergodox_left_led_3_on();
+ ergodox_left_leds_update();
+}
+
+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();
+ ergodox_left_led_1_off();
+ ergodox_left_led_2_off();
+ ergodox_left_led_3_off();
+ ergodox_left_leds_update();
+}
+
+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_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 } \
+ }
+
+void * matrix_init_user(void);
+void * matrix_scan_user(void);
+
+
+
+#endif
\ No newline at end of file
--- /dev/null
+#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
--- /dev/null
+#include "ergodox.h"
+#include "debug.h"
+
+#define DEFAULT_LAYER 0
+#define COLEMAK_LAYER 1
+#define DVORAK_LAYER 2
+#define LOWER_LAYER 1
+#define RAISE_LAYER 4
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[DEFAULT_LAYER] = KEYMAP( // layer 0 : default
+ // left hand
+ KC_EQL, KC_1, KC_2, KC_3, KC_4, KC_5, KC_ESC,
+ KC_BSLS,KC_Q, KC_W, KC_E, KC_R, KC_T, KC_FN2,
+ KC_TAB, KC_A, KC_S, KC_D, KC_F, KC_G,
+ KC_LSFT,KC_Z, KC_X, KC_C, KC_V, KC_B, KC_FN1,
+ KC_LGUI,KC_GRV, KC_BSLS,KC_LEFT,KC_RGHT,
+ KC_LCTL,KC_LALT,
+ KC_HOME,
+ KC_BSPC,KC_DEL, KC_END,
+ // right hand
+ KC_FN3, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS,
+ KC_LBRC,KC_Y, KC_U, KC_I, KC_O, KC_P, KC_RBRC,
+ KC_H, KC_J, KC_K, KC_L, KC_SCLN,KC_QUOT,
+ KC_FN1, KC_N, KC_M, KC_COMM,KC_DOT, KC_SLSH,KC_RSFT,
+ KC_LEFT,KC_DOWN,KC_UP, KC_RGHT,KC_RGUI,
+ KC_RALT,KC_RCTL,
+ KC_PGUP,
+ KC_PGDN,KC_ENT, KC_SPC
+ ),
+[LOWER_LAYER] = KEYMAP( // layer 0 : default
+ // left hand
+ KC_EQL, KC_1, KC_2, KC_3, LALT(KC_TAB), KC_5, KC_ESC,
+ KC_BSLS,KC_Q, S(KC_W), KC_E, KC_R, KC_T, KC_FN2,
+ KC_TAB, KC_A, KC_S, KC_D, KC_F, KC_G,
+ KC_LSFT,KC_Z, KC_X, KC_C, KC_V, KC_B, KC_FN1,
+ KC_LGUI,KC_GRV, KC_BSLS,KC_LEFT,KC_RGHT,
+ KC_LCTL,KC_LALT,
+ KC_HOME,
+ KC_BSPC,KC_DEL, KC_END,
+ // right hand
+ KC_FN3, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS,
+ KC_LBRC,KC_Y, KC_U, KC_I, KC_O, KC_P, KC_RBRC,
+ KC_H, KC_J, KC_K, KC_L, KC_SCLN,KC_QUOT,
+ KC_FN1, KC_N, KC_M, KC_COMM,KC_DOT, KC_SLSH,KC_RSFT,
+ KC_LEFT,KC_DOWN,KC_UP, KC_RGHT,KC_RGUI,
+ KC_RALT,KC_RCTL,
+ KC_PGUP,
+ KC_PGDN,KC_ENT, KC_SPC
+ )
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+
+ [1] = ACTION_LAYER_MOMENTARY(LOWER_LAYER), // to RAISE
+ [2] = ACTION_LAYER_MOMENTARY(LOWER_LAYER), // to LOWER
+
+ [3] = ACTION_DEFAULT_LAYER_SET(DEFAULT_LAYER),
+ [4] = ACTION_DEFAULT_LAYER_SET(COLEMAK_LAYER),
+ [5] = ACTION_DEFAULT_LAYER_SET(DVORAK_LAYER),
+};
+
+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;
+};
--- /dev/null
+/*
+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 <util/delay.h>
+#include "action_layer.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "ergodox.h"
+#include "i2cmaster.h"
+#ifdef DEBUG_MATRIX_SCAN_RATE
+#include "timer.h"
+#endif
+
+#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();
+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_kb(void) {
+};
+
+__attribute__ ((weak))
+void * matrix_scan_kb(void) {
+};
+
+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
+
+ if (matrix_init_kb) {
+ (*matrix_init_kb)();
+ }
+
+}
+
+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
+
+#ifdef KEYMAP_CUB
+ uint8_t layer = biton32(layer_state);
+
+ ergodox_board_led_off();
+ ergodox_left_led_1_off();
+ ergodox_left_led_2_off();
+ ergodox_left_led_3_off();
+ switch (layer) {
+ case 1:
+ // all
+ ergodox_left_led_1_on();
+ ergodox_left_led_2_on();
+ ergodox_left_led_3_on();
+ break;
+ case 2:
+ // blue
+ ergodox_left_led_2_on();
+ break;
+ case 8:
+ // blue and green
+ ergodox_left_led_2_on();
+ // break missed intentionally
+ case 3:
+ // green
+ ergodox_left_led_3_on();
+ break;
+ case 6:
+ ergodox_board_led_on();
+ // break missed intentionally
+ case 4:
+ case 5:
+ case 7:
+ // white
+ ergodox_left_led_1_on();
+ break;
+ case 9:
+ // white+green
+ ergodox_left_led_1_on();
+ ergodox_left_led_3_on();
+ break;
+ default:
+ // none
+ break;
+ }
+
+ mcp23018_status = ergodox_left_leds_update();
+#endif
+
+#ifdef KEYMAP_SIMON
+ uint8_t layer = biton32(layer_state);
+
+ ergodox_board_led_off();
+ switch (layer) {
+ case 0:
+// none
+
+ break;
+ default:
+ ergodox_board_led_on();
+ break;
+ }
+#endif
+
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ select_row(i);
+ 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) {
+ _delay_ms(1);
+ } else {
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ matrix[i] = matrix_debouncing[i];
+ }
+ }
+ }
+
+
+ if (matrix_scan_kb) {
+ (*matrix_scan_kb)();
+ }
+
+ 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 {
+ _delay_us(30); // without this wait read unstable value.
+ // 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
+ & ~(ergodox_left_led_3<<LEFT_LED_3_SHIFT)
+ ); 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)
+ & ~(ergodox_left_led_3<<LEFT_LED_3_SHIFT)
+ ); 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;
+ }
+ }
+}
+
--- /dev/null
+/*************************************************************************
+* 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 TWI Status Register. Mask prescaler bits.
+ twst = TW_STATUS & 0xF8;
+ if ( (twst != TW_MT_SLA_ACK) && (twst != TW_MR_SLA_ACK) ) return 1;
+
+ return 0;
+
+}/* i2c_start */
+
+
+/*************************************************************************
+ Issues a start condition and sends address and transfer direction.
+ If device is busy, use ack polling to wait until device is ready
+
+ Input: address and transfer direction of I2C device
+*************************************************************************/
+void i2c_start_wait(unsigned char address)
+{
+ uint8_t twst;
+
+
+ while ( 1 )
+ {
+ // 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)) continue;
+
+ // send device address
+ TWDR = address;
+ TWCR = (1<<TWINT) | (1<<TWEN);
+
+ // wail until transmission completed
+ while(!(TWCR & (1<<TWINT)));
+
+ // check value of TWI Status Register. Mask prescaler bits.
+ twst = TW_STATUS & 0xF8;
+ if ( (twst == TW_MT_SLA_NACK )||(twst ==TW_MR_DATA_NACK) )
+ {
+ /* device busy, send stop condition to terminate write operation */
+ TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
+
+ // wait until stop condition is executed and bus released
+ while(TWCR & (1<<TWSTO));
+
+ continue;
+ }
+ //if( twst != TW_MT_SLA_ACK) return 1;
+ break;
+ }
+
+}/* i2c_start_wait */
+
+
+/*************************************************************************
+ Issues a repeated start condition and sends address and transfer direction
+
+ Input: address and transfer direction of I2C device
+
+ Return: 0 device accessible
+ 1 failed to access device
+*************************************************************************/
+unsigned char i2c_rep_start(unsigned char address)
+{
+ return i2c_start( address );
+
+}/* i2c_rep_start */
+
+
+/*************************************************************************
+ Terminates the data transfer and releases the I2C bus
+*************************************************************************/
+void i2c_stop(void)
+{
+ /* send stop condition */
+ TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
+
+ // wait until stop condition is executed and bus released
+ while(TWCR & (1<<TWSTO));
+
+}/* i2c_stop */
+
+
+/*************************************************************************
+ Send one byte to I2C device
+
+ Input: byte to be transfered
+ Return: 0 write successful
+ 1 write failed
+*************************************************************************/
+unsigned char i2c_write( unsigned char data )
+{
+ uint8_t twst;
+
+ // send data to the previously addressed device
+ TWDR = data;
+ TWCR = (1<<TWINT) | (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_MT_DATA_ACK) return 1;
+ return 0;
+
+}/* i2c_write */
+
+
+/*************************************************************************
+ Read one byte from the I2C device, request more data from device
+
+ Return: byte read from I2C device
+*************************************************************************/
+unsigned char i2c_readAck(void)
+{
+ TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWEA);
+ while(!(TWCR & (1<<TWINT)));
+
+ return TWDR;
+
+}/* i2c_readAck */
+
+
+/*************************************************************************
+ Read one byte from the I2C device, read is followed by a stop condition
+
+ Return: byte read from I2C device
+*************************************************************************/
+unsigned char i2c_readNak(void)
+{
+ TWCR = (1<<TWINT) | (1<<TWEN);
+ while(!(TWCR & (1<<TWINT)));
+
+ return TWDR;
+
+}/* i2c_readNak */
#ifndef CONFIG_H
#define CONFIG_H
-#include "config_definitions.h"
+#include "config_common.h"
/* USB Device descriptor parameter */
#define VENDOR_ID 0xFEED
keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
)
-#ifdef BLUETOOTH_ENABLE
-#ifdef __AVR_ATmega32U4__
- #define SERIAL_UART_BAUD 9600
- #define SERIAL_UART_DATA UDR1
- #define SERIAL_UART_UBRR ((F_CPU/(16UL*SERIAL_UART_BAUD))-1)
- #define SERIAL_UART_RXD_VECT USART1_RX_vect
- #define SERIAL_UART_TXD_READY (UCSR1A&(1<<UDRE1))
- #define SERIAL_UART_INIT() do { \
- UBRR1L = (uint8_t) SERIAL_UART_UBRR; /* baud rate */ \
- UBRR1H = (uint8_t) (SERIAL_UART_UBRR>>8); /* baud rate */ \
- UCSR1B = (1<<TXEN1); /* TX: enable */ \
- UCSR1C = (0<<UPM11) | (0<<UPM10) | /* parity: none(00), even(01), odd(11) */ \
- (0<<UCSZ12) | (1<<UCSZ11) | (1<<UCSZ10); /* data-8bit(011) */ \
- sei(); \
- } while(0)
-#else
-# error "USART configuration is needed."
-#endif
-
-
-// I'm fairly sure these aren't needed, but oh well - Jack
-
-/*
- * PS/2 Interrupt configuration
- */
-#ifdef PS2_USE_INT
-/* uses INT1 for clock line(ATMega32U4) */
-#define PS2_CLOCK_PORT PORTD
-#define PS2_CLOCK_PIN PIND
-#define PS2_CLOCK_DDR DDRD
-#define PS2_CLOCK_BIT 1
-
-#define PS2_DATA_PORT PORTD
-#define PS2_DATA_PIN PIND
-#define PS2_DATA_DDR DDRD
-#define PS2_DATA_BIT 0
-
-#define PS2_INT_INIT() do { \
- EICRA |= ((1<<ISC11) | \
- (0<<ISC10)); \
-} while (0)
-#define PS2_INT_ON() do { \
- EIMSK |= (1<<INT1); \
-} while (0)
-#define PS2_INT_OFF() do { \
- EIMSK &= ~(1<<INT1); \
-} while (0)
-#define PS2_INT_VECT INT1_vect
-#endif
-
-/*
- * PS/2 Busywait configuration
- */
-#ifdef PS2_USE_BUSYWAIT
-#define PS2_CLOCK_PORT PORTD
-#define PS2_CLOCK_PIN PIND
-#define PS2_CLOCK_DDR DDRD
-#define PS2_CLOCK_BIT 1
-
-#define PS2_DATA_PORT PORTD
-#define PS2_DATA_PIN PIND
-#define PS2_DATA_DDR DDRD
-#define PS2_DATA_BIT 0
-#endif
-
-#endif
-
/*
* Feature disable options
* These options are also useful to firmware size reduction.
+++ /dev/null
-#ifndef CONFIG_DEFINITIONS_H
-#define CONFIG_DEFINITIONS_H
-
-#define B0 0x20
-#define B1 0x21
-#define B2 0x22
-#define B3 0x23
-#define B4 0x24
-#define B5 0x25
-#define B6 0x26
-#define B7 0x27
-#define C0 0x30
-#define C1 0x31
-#define C2 0x32
-#define C3 0x33
-#define C4 0x34
-#define C5 0x35
-#define C6 0x36
-#define C7 0x37
-#define D0 0x40
-#define D1 0x41
-#define D2 0x42
-#define D3 0x43
-#define D4 0x44
-#define D5 0x45
-#define D6 0x46
-#define D7 0x47
-#define E0 0x50
-#define E1 0x51
-#define E2 0x52
-#define E3 0x53
-#define E4 0x54
-#define E5 0x55
-#define E6 0x56
-#define E7 0x57
-#define F0 0x60
-#define F1 0x61
-#define F2 0x62
-#define F3 0x63
-#define F4 0x64
-#define F5 0x65
-#define F6 0x66
-#define F7 0x67
-
-#define COL2ROW 0x0
-#define ROW2COL 0x1
-
-
-
-#endif
-
#include "planck.h"
+__attribute__ ((weak))
void * matrix_init_user(void) {
};
+__attribute__ ((weak))
void * matrix_scan_user(void) {
};
-void *matrix_init_kb(void) {
+void * matrix_init_kb(void) {
#ifdef BACKLIGHT_ENABLE
backlight_init_ports();
#endif
}
};
-void *matrix_scan_kb(void) {
+void * matrix_scan_kb(void) {
if (matrix_scan_user) {
(*matrix_scan_user)();
}
# # project specific files
SRC += $(QUANTUM_DIR)/keymap_common.c \
- $(QUANTUM_DIR)/matrix.c \
$(QUANTUM_DIR)/led.c
+ifndef CUSTOM_MATRIX
+ SRC += $(QUANTUM_DIR)/matrix.c
+endif
+
ifdef MIDI_ENABLE
SRC += $(QUANTUM_DIR)/keymap_midi.c \
$(QUANTUM_DIR)/beeps.c
#EXTRALDFLAGS = -Wl,--relax
# Search Path
-VPATH += $(TARGET_DIR)
-VPATH += $(TOP_DIR)
VPATH += $(QUANTUM_DIR)
include $(TOP_DIR)/protocol/lufa.mk
--- /dev/null
+#ifndef CONFIG_DEFINITIONS_H
+#define CONFIG_DEFINITIONS_H
+
+#define B0 0x20
+#define B1 0x21
+#define B2 0x22
+#define B3 0x23
+#define B4 0x24
+#define B5 0x25
+#define B6 0x26
+#define B7 0x27
+#define C0 0x30
+#define C1 0x31
+#define C2 0x32
+#define C3 0x33
+#define C4 0x34
+#define C5 0x35
+#define C6 0x36
+#define C7 0x37
+#define D0 0x40
+#define D1 0x41
+#define D2 0x42
+#define D3 0x43
+#define D4 0x44
+#define D5 0x45
+#define D6 0x46
+#define D7 0x47
+#define E0 0x50
+#define E1 0x51
+#define E2 0x52
+#define E3 0x53
+#define E4 0x54
+#define E5 0x55
+#define E6 0x56
+#define E7 0x57
+#define F0 0x60
+#define F1 0x61
+#define F2 0x62
+#define F3 0x63
+#define F4 0x64
+#define F5 0x65
+#define F6 0x66
+#define F7 0x67
+
+#define COL2ROW 0x0
+#define ROW2COL 0x1
+
+#ifdef BLUETOOTH_ENABLE
+#ifdef __AVR_ATmega32U4__
+ #define SERIAL_UART_BAUD 9600
+ #define SERIAL_UART_DATA UDR1
+ #define SERIAL_UART_UBRR ((F_CPU/(16UL*SERIAL_UART_BAUD))-1)
+ #define SERIAL_UART_RXD_VECT USART1_RX_vect
+ #define SERIAL_UART_TXD_READY (UCSR1A&(1<<UDRE1))
+ #define SERIAL_UART_INIT() do { \
+ UBRR1L = (uint8_t) SERIAL_UART_UBRR; /* baud rate */ \
+ UBRR1H = (uint8_t) (SERIAL_UART_UBRR>>8); /* baud rate */ \
+ UCSR1B = (1<<TXEN1); /* TX: enable */ \
+ UCSR1C = (0<<UPM11) | (0<<UPM10) | /* parity: none(00), even(01), odd(11) */ \
+ (0<<UCSZ12) | (1<<UCSZ11) | (1<<UCSZ10); /* data-8bit(011) */ \
+ sei(); \
+ } while(0)
+#else
+# error "USART configuration is needed."
+#endif
+
+
+// I'm fairly sure these aren't needed, but oh well - Jack
+
+/*
+ * PS/2 Interrupt configuration
+ */
+#ifdef PS2_USE_INT
+/* uses INT1 for clock line(ATMega32U4) */
+#define PS2_CLOCK_PORT PORTD
+#define PS2_CLOCK_PIN PIND
+#define PS2_CLOCK_DDR DDRD
+#define PS2_CLOCK_BIT 1
+
+#define PS2_DATA_PORT PORTD
+#define PS2_DATA_PIN PIND
+#define PS2_DATA_DDR DDRD
+#define PS2_DATA_BIT 0
+
+#define PS2_INT_INIT() do { \
+ EICRA |= ((1<<ISC11) | \
+ (0<<ISC10)); \
+} while (0)
+#define PS2_INT_ON() do { \
+ EIMSK |= (1<<INT1); \
+} while (0)
+#define PS2_INT_OFF() do { \
+ EIMSK &= ~(1<<INT1); \
+} while (0)
+#define PS2_INT_VECT INT1_vect
+#endif
+
+/*
+ * PS/2 Busywait configuration
+ */
+#ifdef PS2_USE_BUSYWAIT
+#define PS2_CLOCK_PORT PORTD
+#define PS2_CLOCK_PIN PIND
+#define PS2_CLOCK_DDR DDRD
+#define PS2_CLOCK_BIT 1
+
+#define PS2_DATA_PORT PORTD
+#define PS2_DATA_PIN PIND
+#define PS2_DATA_DDR DDRD
+#define PS2_DATA_BIT 0
+#endif
+
+#endif
+
+#endif
+
// Has a modifier
action_t action;
// Split it up
- action.code = ACTION_MODS_KEY(keycode >> 8, keycode & 0xFF);
+ action.code = ACTION_MODS_KEY(keycode >> 8, keycode & 0xFF); // adds modifier to key
return action;
} else if (keycode >= 0x2000 && keycode < 0x3000) {
- // Is a shortcut for function layer, pull last 12bits
+ // Is a shortcut for function layer, pull last 12bits
+ // This means we have 4,096 FN macros at our disposal
return keymap_func_to_action(keycode & 0xFFF);
} else if (keycode >= 0x3000 && keycode < 0x4000) {
+ // When the code starts with 3, it's an action macro.
action_t action;
action.code = ACTION_MACRO(keycode & 0xFF);
return action;
+#ifdef BACKLIGHT_ENABLE
} else if (keycode >= BL_0 & keycode <= BL_15) {
action_t action;
action.code = ACTION_BACKLIGHT_LEVEL(keycode & 0x000F);
action_t action;
action.code = ACTION_BACKLIGHT_STEP();
return action;
- } else if (keycode == RESET) {
+#endif
+ } else if (keycode == RESET) { // RESET is 0x5000, which is why this is here
bootloader_jump();
return;
- } else if (keycode == DEBUG) {
+ } else if (keycode == DEBUG) { // DEBUG is 0x5001
+ // TODO: Does this actually work?
print("\nDEBUG: enabled.\n");
debug_enable = true;
return;
action_t action;
action.code = ACTION_LAYER_SET(layer, when);
return action;
+#ifdef MIDI_ENABLE
} else if (keycode >= 0x6000 && keycode < 0x7000) {
action_t action;
action.code = ACTION_FUNCTION_OPT(keycode & 0xFF, (keycode & 0x0F00) >> 8);
return action;
+#endif
+#ifdef UNICODE_ENABLE
} else if (keycode >= 0x8000) {
action_t action;
uint16_t unicode = keycode & ~(0x8000);
action.code = ACTION_FUNCTION_OPT(unicode & 0xFF, (unicode & 0xFF00) >> 8);
return action;
+#endif
+ } else {
+
}
switch (keycode) {
static void unselect_rows(void);
static void select_row(uint8_t row);
+__attribute__ ((weak))
+void * matrix_init_kb(void) {
+
+};
+
+__attribute__ ((weak))
+void * matrix_scan_kb(void) {
+
+};
+
inline
uint8_t matrix_rows(void)
{
projects / qmk_firmware.git / commitdiff