Implementation for Ergodox project

This commit is contained in:
Oleg Kostyuk 2013-08-10 22:57:01 +03:00
parent 60103a12b2
commit cfc23836e5
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#----------------------------------------------------------------------------
# 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_pjrc
# Directory common source filess exist
TOP_DIR = ../..
# Directory keyboard dependent files exist
TARGET_DIR = .
# project specific files
SRC = keymap.c \
matrix.c \
led.c \
ergodox.c \
twimaster.c
CONFIG_H = config.h
# MCU name, you MUST set this to match the board you are using
# type "make clean" after changing this, so all files will be rebuilt
MCU = atmega32u4
#MCU = at90usb1286
# Processor frequency.
# Normally the first thing your program should do is set the clock prescaler,
# so your program will run at the correct speed. You should also set this
# variable to same clock speed. The _delay_ms() macro uses this, and many
# examples use this variable to calculate timings. Do not add a "UL" here.
F_CPU = 16000000
# Boot Section Size in *bytes*
# Teensy halfKay 512
# Atmel DFU loader 4096
# LUFA bootloader 4096
OPT_DEFS += -DBOOTLOADER_SIZE=512 -DFLASH_SIZE_BYTES=0x8000
# Build Options
# comment out to disable the options.
#
BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration(+1000)
MOUSEKEY_ENABLE = yes # Mouse keys(+5000)
EXTRAKEY_ENABLE = yes # Audio control and System control(+600)
CONSOLE_ENABLE = yes # Console for debug
COMMAND_ENABLE = yes # Commands for debug and configuration
SLEEP_LED_ENABLE = yes # Breathing sleep LED during USB suspend
NKRO_ENABLE = yes # USB Nkey Rollover(+500)
#PS2_MOUSE_ENABLE = yes # PS/2 mouse(TrackPoint) support
INVERT_NUMLOCK = yes # invert state of NumLock led
# Search Path
VPATH += $(TARGET_DIR)
VPATH += $(TOP_DIR)
include $(TOP_DIR)/protocol/pjrc.mk
include $(TOP_DIR)/common.mk
include $(TOP_DIR)/rules.mk
dvorak: OPT_DEFS += -DKEYMAP_DVORAK
dvorak: all
colemak: OPT_DEFS += -DKEYMAP_COLEMAK
colemak: all
workman: OPT_DEFS += -DKEYMAP_WORKMAN
workman: all
cub: OPT_DEFS += -DKEYMAP_CUB
cub: all

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1. Flash led on ~Ln keypress (for now it works only on +Ln)
2. Flash NumLock led only when "numpad" layer is active
3. Command (in terms of IS_COMMAND) to switch to no-leds mode
4. Increase count of ACTION keys
5. Check how it works with ACTION/TAP keys (layerN+key or modifier+key)
6. Fix command_state() onboard led:
it should flash only when kbd in some specific mode (CONSOLE || MOUSE)
7. Fix Right TEENSY key (for now it locks kbd & system)
8. Cleanup everything, add conditionals (ifdef/ifndef), push to github

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/*
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/>.
This work is heavily based on initial firmware for Ergodox keyboard.
Copyright (c) 2012, 2013 Ben Blazak <benblazak.dev@gmail.com>
Released under The MIT License (see "doc/licenses/MIT.md")
Project located at <https://github.com/benblazak/ergodox-firmware>
*/
#ifndef CONFIG_H
#define CONFIG_H
/* USB Device descriptor parameter */
#define VENDOR_ID 0xFEED
#define PRODUCT_ID 0x1111
#define DEVICE_VER 0x0001
#define MANUFACTURER TMK/Cub
#define PRODUCT Ergodox
#define DESCRIPTION t.m.k. keyboard firmware for Ergodox
#define MATRIX_ROWS 14
#define MATRIX_COLS 6
/* define if matrix has ghost */
//#define MATRIX_HAS_GHOST
/* Set 0 if debouncing isn't needed */
#define DEBOUNCE 5
/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
#define LOCKING_SUPPORT_ENABLE
/* Locking resynchronize hack */
#define LOCKING_RESYNC_ENABLE
/* key combination for command */
#define IS_COMMAND() ( \
keyboard_report->mods == (MOD_BIT(KC_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
#endif

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/*
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/>.
This work is heavily based on initial firmware for Ergodox keyboard.
Copyright (c) 2012, 2013 Ben Blazak <benblazak.dev@gmail.com>
Released under The MIT License (see "doc/licenses/MIT.md")
Project located at <https://github.com/benblazak/ergodox-firmware>
Most used files are located at
<https://github.com/benblazak/ergodox-firmware/tree/partial-rewrite/firmware/keyboard/ergodox/controller>
*/
#include <stdint.h>
#include <stdbool.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include "action.h"
#include "command.h"
#include "print.h"
#include "debug.h"
#include "ergodox.h"
#include "i2cmaster.h"
bool i2c_initialized = 0;
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 init_ergodox(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);
// blink leds
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) {
uint8_t err = 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
err = i2c_start(I2C_ADDR_WRITE); if (err) goto out;
err = i2c_write(IODIRA); if (err) goto out;
err = i2c_write(0b00000000); if (err) goto out;
err = i2c_write(0b00111111); if (err) goto out;
i2c_stop();
// set pull-up
// - unused : on : 1
// - input : on : 1
// - driving : off : 0
err = i2c_start(I2C_ADDR_WRITE); if (err) goto out;
err = i2c_write(GPPUA); if (err) goto out;
err = i2c_write(0b00000000); if (err) goto out;
err = i2c_write(0b00111111); if (err) goto out;
i2c_stop();
// set logical value (doesn't matter on inputs)
// - unused : hi-Z : 1
// - input : hi-Z : 1
// - driving : hi-Z : 1
err = i2c_start(I2C_ADDR_WRITE); if (err) goto out;
err = i2c_write(OLATA); if (err) goto out;
err = i2c_write(0b11111111
& ~(ergodox_left_led_3<<LEFT_LED_3_SHIFT)
); if (err) goto out;
err = i2c_write(0b11111111
& ~(ergodox_left_led_2<<LEFT_LED_2_SHIFT)
& ~(ergodox_left_led_1<<LEFT_LED_1_SHIFT)
); if (err) goto out;
out:
i2c_stop();
return err;
}

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/*
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/>.
Copyright (c) 2012, 2013 Ben Blazak <benblazak.dev@gmail.com>
Released under The MIT License (see "doc/licenses/MIT.md")
Project located at <https://github.com/benblazak/ergodox-firmware>
Most used files are located at
<https://github.com/benblazak/ergodox-firmware/tree/partial-rewrite/firmware/keyboard/ergodox/controller>
*/
#include <stdint.h>
#include <stdbool.h>
#include <avr/io.h>
#include "i2cmaster.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
void init_ergodox(void);
uint8_t init_mcp23018(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_left_leds_update(void) { init_mcp23018(); }
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);
}

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#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

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/*
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/>.
*/
#include <stdint.h>
#include <stdbool.h>
#include <avr/pgmspace.h>
#include <util/delay.h>
#include "keycode.h"
#include "action.h"
#include "action_code.h"
#include "action_macro.h"
#include "bootloader.h"
#include "report.h"
#include "host.h"
#include "print.h"
#include "debug.h"
#include "keymap.h"
#include "ergodox.h"
/* ErgoDox keymap definition macro */
#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 */ \
{ \
{ KC_##k00,KC_##k10,KC_##k20,KC_##k30,KC_##k40,KC_NO }, \
{ KC_##k01,KC_##k11,KC_##k21,KC_##k31,KC_##k41,KC_##k51}, \
{ KC_##k02,KC_##k12,KC_##k22,KC_##k32,KC_##k42,KC_##k52}, \
{ KC_##k03,KC_##k13,KC_##k23,KC_##k33,KC_##k43,KC_##k53}, \
{ KC_##k04,KC_##k14,KC_##k24,KC_##k34,KC_##k44,KC_##k54}, \
{ KC_##k05,KC_##k15,KC_##k25,KC_##k35,KC_NO, KC_##k55}, \
{ KC_##k06,KC_##k16,KC_NO, KC_##k36,KC_NO, KC_##k56}, \
\
{ KC_##k07,KC_##k17,KC_NO, KC_##k37,KC_NO, KC_##k57}, \
{ KC_##k08,KC_##k18,KC_##k28,KC_##k38,KC_NO, KC_##k58}, \
{ KC_##k09,KC_##k19,KC_##k29,KC_##k39,KC_##k49,KC_##k59}, \
{ KC_##k0A,KC_##k1A,KC_##k2A,KC_##k3A,KC_##k4A,KC_##k5A}, \
{ KC_##k0B,KC_##k1B,KC_##k2B,KC_##k3B,KC_##k4B,KC_##k5B}, \
{ KC_##k0C,KC_##k1C,KC_##k2C,KC_##k3C,KC_##k4C,KC_##k5C}, \
{ KC_##k0D,KC_##k1D,KC_##k2D,KC_##k3D,KC_##k4D,KC_NO } \
}
#if defined(KEYMAP_DVORAK)
#include "keymap_dvorak.h"
#elif defined(KEYMAP_COLEMAK)
#include "keymap_colemak.h"
#elif defined(KEYMAP_WORKMAN)
#include "keymap_workman.h"
#elif defined(KEYMAP_CUB)
#include "keymap_cub.h"
#else
static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
KEYMAP( // layer 0 : default
// left hand
EQL, 1, 2, 3, 4, 5, ESC,
BSLS,Q, W, E, R, T, FN2,
TAB, A, S, D, F, G,
LSFT,Z, X, C, V, B, FN1,
LGUI,GRV, BSLS,LEFT,RGHT,
LCTL,LALT,
HOME,
BSPC,DEL, END,
// right hand
FN3, 6, 7, 8, 9, 0, MINS,
LBRC,Y, U, I, O, P, RBRC,
H, J, K, L, SCLN,QUOT,
FN1, N, M, COMM,DOT, SLSH,RSFT,
LEFT,DOWN,UP, RGHT,RGUI,
RALT,RCTL,
PGUP,
PGDN,ENT, SPC
),
KEYMAP( // layer 1 : function and symbol keys
// left hand
TRNS,F1, F2, F3, F4, F5, F11,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,FN4,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,TRNS,TRNS,
// right hand
F12, F6, F7, F8, F9, F10, TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,TRNS,TRNS
),
KEYMAP( // layer 2 : keyboard functions
// left hand
FN0, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,TRNS,TRNS,
// right hand
FN4, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,TRNS,TRNS
),
KEYMAP( // layer 3: numpad
// left hand
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,TRNS,TRNS,
// right hand
SLCK,NLCK,PSLS,PAST,PAST,PMNS,BSPC,
TRNS,NO, P7, P8, P9, PMNS,BSPC,
NO, P4, P5, P6, PPLS,PENT,
TRNS,NO, P1, P2, P3, PPLS,PENT,
P0, PDOT,SLSH,PENT,PENT,
TRNS,TRNS,
TRNS,
TRNS,TRNS,TRNS
),
};
/* id for user defined functions */
enum function_id {
TEENSY_KEY,
};
/*
* Fn action definition
*/
static const uint16_t PROGMEM fn_actions[] = {
ACTION_FUNCTION(TEENSY_KEY), // FN0 - Teensy key
ACTION_LAYER_MOMENTARY(1), // FN1 - switch to Layer1
ACTION_LAYER_SET(2, ON_PRESS), // FN2 - push Layer2
ACTION_LAYER_SET(3, ON_PRESS), // FN3 - push Layer3
ACTION_LAYER_SET(0, ON_PRESS), // FN4 - push Layer0
};
void action_function(keyrecord_t *event, uint8_t id, uint8_t opt)
{
if (id == TEENSY_KEY) {
clear_keyboard();
print("\n\nJump to bootloader... ");
_delay_ms(250);
bootloader_jump(); // should not return
print("not supported.\n");
}
}
#endif
#define KEYMAPS_SIZE (sizeof(keymaps) / sizeof(keymaps[0]))
#define FN_ACTIONS_SIZE (sizeof(fn_actions) / sizeof(fn_actions[0]))
/* translates key to keycode */
uint8_t keymap_key_to_keycode(uint8_t layer, key_t key)
{
if (layer < KEYMAPS_SIZE) {
return pgm_read_byte(&keymaps[(layer)][(key.row)][(key.col)]);
} else {
// fall back to layer 0
return pgm_read_byte(&keymaps[0][(key.row)][(key.col)]);
}
}
/* translates Fn keycode to action */
action_t keymap_fn_to_action(uint8_t keycode)
{
action_t action;
if (FN_INDEX(keycode) < FN_ACTIONS_SIZE) {
action.code = pgm_read_word(&fn_actions[FN_INDEX(keycode)]);
} else {
action.code = ACTION_NO;
}
return action;
}

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@ -0,0 +1,4 @@
#error Colemak layout is not defined yet
static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
};
static const uint16_t PROGMEM fn_actions[] = {};

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static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
/* Keymap 0: Default Layer
*
* ,--------------------------------------------------. ,--------------------------------------------------.
* | ~ | 1 | 2 | 3 | 4 | 5 | \ | | ' | 6 | 7 | 8 | 9 | 0 | = |
* |--------+------+------+------+------+-------------| |------+------+------+------+------+------+--------|
* | Tab | Q | W | E | R | T | ~Fn1 | | ~Fn3 | Y | U | I | O | P | [ |
* |--------+------+------+------+------+------| | | |------+------+------+------+------+--------|
* | LShift | A | S | D | F | G |------| |------| H | J | K | L | ; | RShift |
* |--------+------+------+------+------+------| Fn0 | | ~Fn4 |------+------+------+------+------+--------|
* | LCtrl | Z | X | C | V | B | | | | N | M | , | . | / | RCtrl |
* `--------+------+------+------+------+-------------' `-------------+------+------+------+------+--------'
* | ~Fn1 | ~Fn2 | Caps | LAlt | LGui | | Lft | Up | Dn | Rght | ~Fn4 |
* `----------------------------------' `----------------------------------'
* ,-------------. ,-------------.
* | +Fn2 | Home | | PgUp | Del |
* ,------|------|------| |------+------+------.
* | | | End | | PgDn | | |
* | BkSp | ESC |------| |------| Enter| Space|
* | | | Spc | | Ins | | |
* `--------------------' `--------------------'
*/
KEYMAP( // layout: layer 0: default
// left hand
GRV, 1, 2, 3, 4, 5, BSLS,
TAB, Q, W, E, R, T, FN1,
LSFT,A, S, D, F, G,
LCTL,Z, X, C, V, B, FN0,
FN1, FN6, CAPS,LALT,LGUI,
FN2, HOME,
END,
BSPC,ESC, SPC,
// right hand
QUOT,6, 7, 8, 9, 0, EQL,
FN3, Y, U, I, O, P, LBRC,
H, J, K, L, SCLN,RSFT,
FN4, N, M, COMM,DOT, SLSH,RCTL,
LEFT,UP, DOWN,RGHT,FN4,
PGUP,DEL,
PGDN,
INS, ENT, SPC
),
KEYMAP( // layout: layer 1: F-keys instead of numbers
// left hand
TRNS,F1, F2, F3, F4, F5, F6,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,LALT,LGUI,
TRNS,TRNS,
TRNS,
LCTL,LSFT,TRNS,
// right hand
F7, F8, F9, F10, F11, F12, MINS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,RBRC,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
RGUI,RALT,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,RSFT,RCTL
),
KEYMAP( // layout: layer 2: mouse + numpad
// left hand
TRNS,NO, NO, NO, NO, PAUS,PSCR,
TRNS,WH_L,WH_U,WH_D,WH_R,BTN2,TRNS,
TRNS,MS_L,MS_U,MS_D,MS_R,BTN1,
TRNS,NO, NO, NO, NO, BTN3,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,TRNS,TRNS,
// right hand
SLCK,NLCK,PSLS,PAST,PAST,PMNS,BSPC,
TRNS,NO, P7, P8, P9, PMNS,BSPC,
NO, P4, P5, P6, PPLS,PENT,
TRNS,NO, P1, P2, P3, PPLS,PENT,
P0, PDOT,SLSH,PENT,PENT,
TRNS,TRNS,
TRNS,
TRNS,TRNS,TRNS
),
KEYMAP( // layout: layer 3: F-keys only
// left hand
TRNS,NO, NO, NO, NO, NO, NO,
TRNS,F13, F14, F15, F16, NO, TRNS,
TRNS,F17, F18, F19, F20, NO,
TRNS,F21, F22, F23, F24, NO, TRNS,
TRNS,TRNS,TRNS,LALT,LGUI,
TRNS,TRNS,
TRNS,
LCTL,LSFT,TRNS,
// right hand
NO, NO, NO, NO, NO, NO, TRNS,
TRNS,NO, F1, F2, F3, F4, TRNS,
NO, F5, F6, F7, F8, TRNS,
TRNS,NO, F9, F10, F11, F12, TRNS,
RGUI,RALT,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,RSFT,RCTL
),
KEYMAP( // layout: layer 4: F-keys + cursor
// left hand
TRNS,F1, F2, F3, F4, F5, F6,
FN7, NO, PGUP,UP, PGDN,PGUP,TRNS,
TRNS,NO, LEFT,DOWN,RGHT,PGDN,
TRNS,NO, NO, END, HOME,NO, TRNS,
FN5, TRNS,TRNS,LALT,LGUI,
TRNS,TRNS,
TRNS,
LCTL,LSFT,TRNS,
// right hand
F7, F8, F9, F10, F11, F12, MINS,
TRNS,PGUP,PGUP,UP, PGDN,NO, FN7,
PGDN,LEFT,DOWN,RGHT,NO, TRNS,
TRNS,NO, HOME,END, NO, NO, TRNS,
RGUI,RALT,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,RSFT,RCTL
),
KEYMAP( // layout: layer 5: Workman layout
// left hand
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,Q, D, R, W, B, TRNS,
TRNS,A, S, H, T, G,
TRNS,Z, X, M, C, V, TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,TRNS,TRNS,
// right hand
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,J, F, U, P, 4, TRNS,
Y, N, E, O, I, TRNS,
TRNS,K, L, TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,TRNS,TRNS
),
/*
KEYMAP( // layout: layer N: transparent on edges, all others are empty
// left hand
TRNS,NO, NO, NO, NO, NO, NO,
TRNS,NO, NO, NO, NO, NO, TRNS,
TRNS,NO, NO, NO, NO, NO,
TRNS,NO, NO, NO, NO, NO, TRNS,
TRNS,TRNS,TRNS,LALT,LGUI,
TRNS,TRNS,
TRNS,
LCTL,LSFT,TRNS,
// right hand
NO, NO, NO, NO, NO, NO, TRNS,
TRNS,NO, NO, NO, NO, NO, TRNS,
NO, NO, NO, NO, NO, TRNS,
TRNS,NO, NO, NO, NO, NO, TRNS,
RGUI,RALT,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,RSFT,RCTL
),
KEYMAP( // layout: layer N: fully transparent
// left hand
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,TRNS,TRNS,
// right hand
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,TRNS,TRNS,TRNS,
TRNS,TRNS,
TRNS,
TRNS,TRNS,TRNS
),
*/
};
/* id for user defined functions */
enum function_id {
TEENSY_KEY,
};
/*
* Fn action definition
*/
static const uint16_t PROGMEM fn_actions[] = {
ACTION_DEFAULT_LAYER_SET(0), // FN0 - switch to Layer0
ACTION_LAYER_MOMENTARY(1), // FN1 - push Layer1
ACTION_DEFAULT_LAYER_SET(2), // FN2 - switch to Layer2
ACTION_LAYER_MOMENTARY(3), // FN3 - push Layer3
ACTION_LAYER_MOMENTARY(4), // FN4 - push Layer4
ACTION_DEFAULT_LAYER_SET(5), // FN5 - switch to Layer5
ACTION_LAYER_MOMENTARY(2), // FN6 - push Layer2
ACTION_FUNCTION(TEENSY_KEY), // FN7 - Teensy key
};
void action_function(keyrecord_t *event, uint8_t id, uint8_t opt)
{
print("action_function called\n");
print("id = "); phex(id); print("\n");
print("opt = "); phex(opt); print("\n");
if (id == TEENSY_KEY) {
clear_keyboard();
print("\n\nJump to bootloader... ");
_delay_ms(250);
bootloader_jump(); // should not return
print("not supported.\n");
}
}

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#error Dvorak layout is not defined yet
static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
};
static const uint16_t PROGMEM fn_actions[] = {};

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@ -0,0 +1,4 @@
#error Workman layout is not defined yet
static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
};
static const uint16_t PROGMEM fn_actions[] = {};

57
keyboard/ergodox/led.c Normal file
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/*
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/>.
*/
#include <stdint.h>
#include <avr/io.h>
#include "print.h"
#include "debug.h"
#include "led.h"
#include "ergodox.h"
void led_set(uint8_t usb_led)
{
// topmost - NumLock
#ifdef INVERT_NUMLOCK
if (usb_led & (1<<USB_LED_NUM_LOCK)) {
ergodox_right_led_1_on();
} else {
ergodox_right_led_1_off();
}
#else
if (usb_led & (1<<USB_LED_NUM_LOCK)) {
ergodox_right_led_1_off();
} else {
ergodox_right_led_1_on();
}
#endif
// middle - CapsLock
if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
ergodox_right_led_2_on();
} else {
ergodox_right_led_2_off();
}
// bottommost - ScrollLock
if (usb_led & (1<<USB_LED_SCROLL_LOCK)) {
ergodox_right_led_3_on();
} else {
ergodox_right_led_3_off();
}
}

326
keyboard/ergodox/matrix.c Normal file
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/*
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"
#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 mcp23018_status, uint8_t row);
static void init_cols(void);
static void unselect_rows(uint8_t mcp23018_status);
static void select_row(uint8_t mcp23018_status, uint8_t row);
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
init_ergodox();
uint8_t mcp23018_status;
mcp23018_status = init_mcp23018();
unselect_rows(mcp23018_status);
init_cols();
// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
matrix[i] = 0;
matrix_debouncing[i] = 0;
}
}
uint8_t matrix_scan(void)
{
#ifdef KEYMAP_CUB
uint8_t layer = biton32(layer_state);
if (layer == 1) {
ergodox_left_led_1_on();
ergodox_left_led_2_off();
ergodox_left_led_3_off();
} else if (layer == 2) {
ergodox_left_led_1_off();
ergodox_left_led_2_on();
ergodox_left_led_3_off();
} else if (layer == 3) {
ergodox_left_led_1_off();
ergodox_left_led_2_off();
ergodox_left_led_3_on();
} else if (layer == 4) {
ergodox_left_led_1_on();
ergodox_left_led_2_off();
ergodox_left_led_3_on();
} else if (layer == 5) {
ergodox_left_led_1_on();
ergodox_left_led_2_on();
ergodox_left_led_3_off();
} else if (layer == 6) {
ergodox_left_led_1_off();
ergodox_left_led_2_on();
ergodox_left_led_3_on();
} else if (layer == 7) {
ergodox_left_led_1_on();
ergodox_left_led_2_on();
ergodox_left_led_3_on();
} else {
ergodox_left_led_1_off();
ergodox_left_led_2_off();
ergodox_left_led_3_off();
}
// not actually needed because we already calling init_mcp23018() in next line
// ergodox_left_leds_update();
#endif
uint8_t mcp23018_status = init_mcp23018();
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
select_row(mcp23018_status, i);
_delay_us(30); // without this wait read unstable value.
matrix_row_t cols = read_cols(mcp23018_status, i);
if (matrix_debouncing[i] != cols) {
matrix_debouncing[i] = cols;
if (debouncing) {
debug("bounce!: "); debug_hex(debouncing); debug("\n");
}
debouncing = DEBOUNCE;
}
unselect_rows(mcp23018_status);
}
if (debouncing) {
if (--debouncing) {
_delay_ms(1);
} else {
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
matrix[i] = matrix_debouncing[i];
}
}
}
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 mcp23018_status, uint8_t row)
{
if (row < 7) {
if (mcp23018_status) { // if there was an error
return 0;
} else {
uint8_t data = 0;
uint8_t err = 0x20;
err = i2c_start(I2C_ADDR_WRITE); if (err) goto out;
err = i2c_write(GPIOB); if (err) goto out;
err = i2c_start(I2C_ADDR_READ); if (err) goto out;
data = i2c_readNak();
data = ~data;
out:
i2c_stop();
return data;
}
} else {
// read from teensy
return
(PINF&(1<<0) ? 0 : (1<<0)) |
(PINF&(1<<1) ? 0 : (1<<1)) |
(PINF&(1<<4) ? 0 : (1<<2)) |
(PINF&(1<<5) ? 0 : (1<<3)) |
(PINF&(1<<6) ? 0 : (1<<4)) |
(PINF&(1<<7) ? 0 : (1<<5)) ;
}
}
/* Row pin configuration
*
* Teensy
* row: 7 8 9 10 11 12 13
* pin: B0 B1 B2 B3 D2 D3 C6
*
* MCP23018
* row: 0 1 2 3 4 5 6
* pin: A0 A1 A2 A3 A4 A5 A6
*/
static void unselect_rows(uint8_t mcp23018_status)
{
// unselect on mcp23018
if (mcp23018_status) { // if there was an error
// do nothing
} else {
// set all rows hi-Z : 1
uint8_t err = 0x20;
err = i2c_start(I2C_ADDR_WRITE); if (err) goto out;
err = i2c_write(GPIOA); if (err) goto out;
err = i2c_write( 0xFF
& ~(ergodox_left_led_3<<LEFT_LED_3_SHIFT)
); if (err) 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 mcp23018_status, 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
uint8_t err = 0x20;
err = i2c_start(I2C_ADDR_WRITE); if (err) goto out;
err = i2c_write(GPIOA); if (err) goto out;
err = i2c_write( 0xFF & ~(1<<row)
& ~(ergodox_left_led_3<<LEFT_LED_3_SHIFT)
); if (err) 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;
}
}
}

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@ -0,0 +1,202 @@
/*************************************************************************
* 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 4000000UL
#endif
/* I2C clock in Hz */
#define SCL_CLOCK 100000L
/*************************************************************************
Initialization of the I2C bus interface. Need to be called only once
*************************************************************************/
void i2c_init(void)
{
/* initialize TWI clock: 100 kHz clock, TWPS = 0 => prescaler = 1 */
TWSR = 0; /* no prescaler */
TWBR = ((F_CPU/SCL_CLOCK)-16)/2; /* 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 */