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Added NeXT keyboard converter

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Benjamin Gould 2014-01-06 14:43:59 -05:00
parent a35cf0e458
commit f7bb7c4fa9
9 changed files with 1026 additions and 0 deletions
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63
converter/next_usb/Makefile Normal file
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# Target file name (without extension).
TARGET = next_usb
# Directory common source filess exist
TOP_DIR = ../..
# Directory keyboard dependent files exist
TARGET_DIR = .
# keyboard dependent files
SRC = keymap.c \
matrix.c \
led.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 = at90usb162 # Teensy 1.0
MCU = atmega32u4 # Teensy 2.0
#MCU = at90usb646 # Teensy++ 1.0
#MCU = at90usb1286 # Teensy++ 2.0
# 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
# 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
EXTRAKEY_ENABLE = yes # Audio control and System control
CONSOLE_ENABLE = yes # Console for debug(+400)
COMMAND_ENABLE = yes # Commands for debug and configuration
#NKRO_ENABLE = yes # USB Nkey Rollover
SRC += next_kbd.c
# Search Path
VPATH += $(TARGET_DIR)
VPATH += $(TOP_DIR)
include $(TOP_DIR)/protocol.mk
include $(TOP_DIR)/protocol/pjrc.mk
include $(TOP_DIR)/common.mk
include $(TOP_DIR)/rules.mk

45
converter/next_usb/README Normal file
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NeXT non-ADB Keyboard Converter
-------------------------------
Cable connector inside keyboard case:
+-----+
|Black|\
|Green|-\
|Yello|--\-------- to computer via Mini-Din 5a Connector
|Orang|--/--------
|Red |-/
|Brown|/
+-----+
Black - Ground to outer metal part of Mini Din 5a connector (not used)
Green - Ground
Yellow - Power button signal
Orange - Keyboard Out
Red - Keyboard In
Brown - Vcc
ATmega32u4 connections (pinout provided for Arduino Pro Micro):
Keyboard out (orange) : PD0 (pin 3)
Keyboard in (red) : PD1 (pin 2)
Power Button (yellow) : PD4 (pin 4)
Ground (black) : GND
Vcc (brown) : VCC
See attached next_timings.jpg file for a detailed illustration of NeXT keyboard protocol timings.
Power button signal line is normally high when the keyboard is powered/initialized. It is pulled to ground when pressed. The converter automatically translates this to a "normal" keypress with code 0x5A. This connection is technically optional, the only side effect of not making this connection is the power key will do nothing.
Converter is based heavily on Ladyada's original "USB NeXT Keyboard with Arduino Micro" tutorial (http://learn.adafruit.com/usb-next-keyboard-with-arduino-micro/overview). If you build this converter, show Adafruit some love and do it using an Arduino Micro (http://www.adafruit.com/products/1315) or their ATmega 32u4 Breakout Board (http://www.adafruit.com/products/296). Arduino Micro should work fine using the Arduino Pro Micro configuration above, same pins numbers and everything.
TODO:
-----
I believe it might be possible to run the keyboard off of 3V; during testing I observed that the keyboard could sometimes function even without Vcc connected as long as the ground connection was good and the Keyboard In line was connected. If that works it should be easy to do a Bluetooth conversion and run the keyboard right off of a LiPo battery without a boost circuit
Utilize second LED as status indicator for good initialization; also try to make hot plugging much more robust.
Figure a better use for the Power button. Too easy to hit it by mistake to use for Suspend or Power Off - maybe move cap to different part of the board and consider that
Figure out a better use for the lock LEDs. Right now they just light up when you press shift. Lame. Maybe implement proper Caps/Num/Scroll Locks

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/*
NeXT non-ADB Keyboard USB Converter
Copyright 2013, Benjamin Gould (bgould@github.com)
Based on:
TMK firmware code Copyright 2011,2012 Jun WAKO <wakojun@gmail.com>
Arduino code by "Ladyada" Limor Fried (http://ladyada.net/, http://adafruit.com/), released under BSD license
Timing reference thanks to http://m0115.web.fc2.com/ (dead link), http://cfile7.uf.tistory.com/image/14448E464F410BF22380BB
Pinouts thanks to http://www.68k.org/~degs/nextkeyboard.html
Keycodes from http://ftp.netbsd.org/pub/NetBSD/NetBSD-release-6/src/sys/arch/next68k/dev/
This software is licensed with a Modified BSD License.
All of this is supposed to be Free Software, Open Source, DFSG-free,
GPL-compatible, and OK to use in both free and proprietary applications.
Additions and corrections to this file are welcome.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of the copyright holders nor the names of
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#define VENDOR_ID 0xBCBC
#define PRODUCT_ID 0xBCBC
#define DEVICE_VER 0x0500
#define MANUFACTURER t.m.k.
#define PRODUCT NeXT Keyboard to USB converter
#define DESCRIPTION USB converter for NeXT non-ADB Keyboard
/* matrix size */
#define MATRIX_ROWS 12 // keycode bit: 3-0
#define MATRIX_COLS 8 // keycode bit: 6-4
//#define DEBUG_ON_INIT 1
//#define TEENSY_CONFIG 1
#define PRO_MICRO_CONFIG 1
// comment out if you don't want the keyboard's LEDs to flash upon initialization
#define NEXT_KBD_INIT_FLASH_LEDS
//============= Start of Arduino Pro Micro Configuration ==============
#ifdef PRO_MICRO_CONFIG
// this is the debugging LED that flashes when a key is being pressed
// comment out in order to disable debugging LED
#define NEXT_KBD_LED1_PORT PORTD
#define NEXT_KBD_LED1_PIN PIND
#define NEXT_KBD_LED1_DDR DDRD
#define NEXT_KBD_LED1_BIT 5
#define NEXT_KBD_LED1_ON NEXT_KBD_LED1_PORT &= ~(1<<NEXT_KBD_LED1_BIT);
#define NEXT_KBD_LED1_OFF NEXT_KBD_LED1_PORT |= (1<<NEXT_KBD_LED1_BIT);
// reserved for future use
#define NEXT_KBD_LED2_PORT PORTB
#define NEXT_KBD_LED2_PIN PINB
#define NEXT_KBD_LED2_DDR DDRB
#define NEXT_KBD_LED2_BIT 6
#define NEXT_KBD_LED2_ON NEXT_KBD_LED2_PORT &= ~(1<<NEXT_KBD_LED2_BIT);
#define NEXT_KBD_LED2_OFF NEXT_KBD_LED2_PORT |= (1<<NEXT_KBD_LED2_BIT);
// corresponds to the Keyboard In wire on the NeXT connector
// (red wire in NeXT connector) - pin 2 on the Pro Micro
#define NEXT_KBD_OUT_PORT PORTD
#define NEXT_KBD_OUT_PIN PIND
#define NEXT_KBD_OUT_DDR DDRD
#define NEXT_KBD_OUT_BIT 1
// corresponds to the Keyboard Out wire on the NeXT connector
// (orange wire in NeXT connector) - pin 3 on the Pro Micro
#define NEXT_KBD_IN_PORT PORTD
#define NEXT_KBD_IN_PIN PIND
#define NEXT_KBD_IN_DDR DDRD
#define NEXT_KBD_IN_BIT 0
// this pin is an input for the power key on the NeXT keyboard
// as the keyboard is powered on this should be normally high;
// if it is pulled low it means the power button is being preseed
// (yellow wire in NeXT connector) - pin 4 on the Pro Micro
#define NEXT_KBD_PWR_PORT PORTD
#define NEXT_KBD_PWR_PIN PIND
#define NEXT_KBD_PWR_DDR DDRD
#define NEXT_KBD_PWR_BIT 4
#endif
//============== End of Arduino Pro Micro Configuration ===============
//================ Start of Teensy 2.0 Configuration =================
#ifdef TEENSY_CONFIG
// this is the debugging LED that flashes when a key is being pressed
// comment out in order to disable debugging LED
#define NEXT_KBD_LED_PORT PORTD
#define NEXT_KBD_LED_PIN PIND
#define NEXT_KBD_LED_DDR DDRD
#define NEXT_KBD_LED_BIT 6
#define NEXT_KBD_LED_ON NEXT_KBD_LED_PORT |= (1<<NEXT_KBD_LED_BIT);
#define NEXT_KBD_LED_OFF NEXT_KBD_LED_PORT &= ~(1<<NEXT_KBD_LED_BIT);
// corresponds to the Keyboard In wire on the NeXT connector
// (red wire in NeXT connector)
#define NEXT_KBD_OUT_PORT PORTB
#define NEXT_KBD_OUT_PIN PINB
#define NEXT_KBD_OUT_DDR DDRB
#define NEXT_KBD_OUT_BIT 1
// corresponds to the Keyboard Out wire on the NeXT connector
// (orange wire in NeXT connector)
#define NEXT_KBD_IN_PORT PORTB
#define NEXT_KBD_IN_PIN PINB
#define NEXT_KBD_IN_DDR DDRB
#define NEXT_KBD_IN_BIT 0
#endif
//================= End of Teensy 2.0 Configuration ==================
/* key combination for command */
#define IS_COMMAND() ( \
(keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)))|| \
(keyboard_report->mods == (MOD_BIT(KC_RALT) | MOD_BIT(KC_RCTL))) \
)

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/*
NeXT non-ADB Keyboard USB Converter
Copyright 2013, Benjamin Gould (bgould@github.com)
Based on:
---------
* TMK firmware code Copyright 2011,2012 Jun WAKO <wakojun@gmail.com>
* Arduino code by "Ladyada" Limor Fried (http://ladyada.net/, http://adafruit.com/) \
released under BSD license \
https://github.com/adafruit/USB-NeXT-Keyboard
Timing reference thanks to http://m0115.web.fc2.com/ (dead link), http://cfile7.uf.tistory.com/image/14448E464F410BF22380BB
Pinouts thanks to http://www.68k.org/~degs/nextkeyboard.html
Keycodes from http://ftp.netbsd.org/pub/NetBSD/NetBSD-release-6/src/sys/arch/next68k/dev/
This software is licensed with a Modified BSD License.
All of this is supposed to be Free Software, Open Source, DFSG-free,
GPL-compatible, and OK to use in both free and proprietary applications.
Additions and corrections to this file are welcome.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of the copyright holders nor the names of
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdint.h>
#include <stdbool.h>
#include <avr/pgmspace.h>
#include "keycode.h"
#include "print.h"
#include "debug.h"
#include "util.h"
#include "keymap.h"
#include "keycode.h"
// 32*8(256) byte array which converts PS/2 code into USB code
static const uint16_t PROGMEM fn_actions[] = {
ACTION_LAYER_MOMENTARY(1), // FN0 - left command key
ACTION_LAYER_MOMENTARY(1), // FN1 - right command key
ACTION_KEY(KC_BSLS), // FN2 - number pad slash & backslash
ACTION_MODS_KEY(MOD_LSFT, KC_BSLS), // FN3 - number pad equals & pipe
ACTION_MODS_KEY(MOD_LCTL, KC_Z), // FN4 - cmd+undo on layer 1
ACTION_MODS_KEY(MOD_LCTL, KC_X), // FN5 - cmd+cut on layer 1
ACTION_MODS_KEY(MOD_LCTL, KC_C), // FN6 - cmd+copy on layer 1
ACTION_MODS_KEY(MOD_LCTL, KC_V), // FN7 - cmd+paste on layer 1
};
/* This is the physical layout that I am starting with:
* Note: there is some strangeness on the number pad;
* the equal sign shifts to pipe and forward slash shifts to backslash
* ,-----------------------------------------------------------. ,-----------. ,---------------.
* |Esc| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =| BS | |VUp|Pwr|BrU| |` | =| /| *|
* |-----------------------------------------------------------| |-----------| |---------------|
* |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| | |VDn| |BrD| | 7| 8| 9| -|
* |------------------------------------------------------ | `---' `---' |-----------|---|
* |Ctrl | A| S| D| F| G| H| J| K| L| ;| '| Return| | 4| 5| 6| +|
* |-----------------------------------------------------------| ,---. |---------------|
* |Shift | Z| X| C| V| B| N| M| ,| .| /|Shift | |Up | | 1| 2| 3| |
* |-----------------------------------------------------------| ,-----------. |-----------|Ent|
* |Alt |Cmd | Space |Cmd |Alt | |Lef|Dow|Rig| | 0| .| |
* `-----------------------------------------------------------' `-----------' `---------------'
*
* Keymap array:
* 8 bytes
* +---------+
* 0| |
* :| | 0x00-0x87
* ;| |
* 11| |
* +---------+
*/
#define KEYMAP( \
K49,K4A,K4B,K4C,K4D,K50,K4F,K4E,K1E,K1F,K20,K1D,K1C,K1B, K1A,K58,K19, K26,K27,K28,K25, \
K41,K42,K43,K44,K45,K48,K47,K46,K06,K07,K08,K05,K04,K03, K02, K01, K21,K22,K23,K24, \
K57,K39,K3A,K3B,K3C,K3D,K40,K3F,K3E,K2D,K2C,K2B, K2A, K12,K18,K13,K15, \
K56, K31,K32,K33,K34,K35,K37,K36,K2E,K2F,K30, K55, K16, K11,K17,K14, \
K52,K54, K38, K53,K51, K09,K0F,K10, K0B, K0C,K0D \
) { \
{ KC_NO, KC_##K01, KC_##K02, KC_##K03, KC_##K04, KC_##K05, KC_##K06, KC_##K07 }, \
{ KC_##K08, KC_##K09, KC_##K10, KC_##K0B, KC_##K0C, KC_##K0D, KC_NO, KC_##K0F }, \
{ KC_##K10, KC_##K11, KC_##K12, KC_##K13, KC_##K14, KC_##K15, KC_##K16, KC_##K17 }, \
{ KC_##K18, KC_##K19, KC_##K1A, KC_##K1B, KC_##K1C, KC_##K1D, KC_##K1E, KC_##K1F }, \
{ KC_##K20, KC_##K21, KC_##K22, KC_##K23, KC_##K24, KC_##K25, KC_##K26, KC_##K27 }, \
{ KC_##K28, KC_NO, KC_##K2A, KC_##K2B, KC_##K2C, KC_##K2D, KC_##K2E, KC_##K2F }, \
{ KC_##K30, KC_##K31, KC_##K32, KC_##K33, KC_##K34, KC_##K35, KC_##K36, KC_##K37 }, \
{ KC_##K38, KC_##K39, KC_##K3A, KC_##K3B, KC_##K3C, KC_##K3D, KC_##K3E, KC_##K3F }, \
{ KC_##K40, KC_##K41, KC_##K42, KC_##K43, KC_##K44, KC_##K45, KC_##K46, KC_##K47 }, \
{ KC_##K48, KC_##K49, KC_##K4A, KC_##K4B, KC_##K4C, KC_##K4D, KC_##K4E, KC_##K4F }, \
{ KC_##K50, KC_##K51, KC_##K52, KC_##K53, KC_##K54, KC_##K55, KC_##K56, KC_##K57 }, \
{ KC_##K58, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, }, \
}
static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
/* Layer 0: default
* ,-----------------------------------------------------------. ,-----------. ,---------------.
* |Esc| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =| BS | |Ins|Ref|Hom| |` | =| /| *|
* |-----------------------------------------------------------| |-----------| |---------------|
* |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| | |Del| |End| | 7| 8| 9| -|
* |-----------------------------------------------------' | `---' `---' |-----------|---|
* |Ctrl | A| S| D| F| G| H| J| K| L| ;| '| Return| | 4| 5| 6| +|
* |-----------------------------------------------------------| ,---. |---------------|
* |Shift | Z| X| C| V| B| N| M| ,| .| /|Shift | |Up | | 1| 2| 3| |
* |-----------------------------------------------------------| ,-----------. |-----------|Ent|
* |Fn0 |Alt | Space |LGui |Fn1 | |Lef|Dow|Rig| | 0| .| |
* `-----------------------------------------------------------' `-----------' `---------------'
*/
KEYMAP(
ESC, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, MINS,EQL, BSPC, INS, WREF,HOME, GRV, FN3, FN2, PAST,
TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC,RBRC,NO, DEL, END, P7, P8, P9, PMNS,
LCTL,A, S, D, F, G, H, J, K, L, SCLN,QUOT, ENT, P4, P5, P6, PPLS,
LSFT, Z, X, C, V, B, N, M, COMM,DOT, SLSH, RSFT, UP, P1, P2, P3,
FN0, LALT, SPC, LGUI,FN1, LEFT,DOWN,RGHT, P0, PDOT,PENT
),
/* Layer 1: extra keys
* ,-----------------------------------------------------------. ,-----------. ,---------------.
* |Grv| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12| BS | |VUp|VMu|PgU| |` | =| /| *|
* |-----------------------------------------------------------| |-----------| |---------------|
* |Tab |Pau| W| E| R| T| Y| U| I| O|PSc| \| ]| | |VDn| |PgD| | 7| 8| 9| -|
* |-----------------------------------------------------' | `---' `---' |-----------|---|
* |Ctrl | A| S| D| F| G| H| J| K| L| ;| '| Return| | 4| 5| 6| +|
* |-----------------------------------------------------------| ,---. |---------------|
* |Shift |UND|CUT|COP|PST| B| N| M| ,| .| /|Shift | |Up | | 1| 2| 3| |
* |-----------------------------------------------------------| ,-----------. |-----------|Ent|
* |Fn0 |Alt | Space |RGui |Fn1 | |Lef|Dow|Rig| | 0| .| |
* `-----------------------------------------------------------' `-----------' `---------------'
*/
KEYMAP(
GRV, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, TRNS, VOLU,MUTE,PGUP, TRNS,TRNS,TRNS,TRNS,
TRNS,PAUS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,PSCR,FN3, BSLS,TRNS, VOLD, PGDN, BTN1,MS_U,BTN2,WH_U,
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, TRNS, MS_L,MS_D,MS_R,WH_D,
TRNS, FN4, FN5, FN6, FN7, TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, TRNS, TRNS, TRNS,TRNS,TRNS,
TRNS,RALT, TRNS, RGUI,TRNS, TRNS,TRNS,TRNS, TRNS, TRNS,TRNS
)
};
/* translates key to keycode */
uint8_t keymap_key_to_keycode(uint8_t layer, key_t key)
{
return pgm_read_byte(&keymaps[(layer)][(key.row)][(key.col)]);
}
/* translates Fn keycode to action */
action_t keymap_fn_to_action(uint8_t keycode)
{
return (action_t){ .code = pgm_read_word(&fn_actions[FN_INDEX(keycode)]) };
}

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/*
NeXT non-ADB Keyboard USB Converter
Copyright 2013, Benjamin Gould (bgould@github.com)
Based on:
TMK firmware code Copyright 2011,2012 Jun WAKO <wakojun@gmail.com>
Arduino code by "Ladyada" Limor Fried (http://ladyada.net/, http://adafruit.com/), released under BSD license
Timing reference thanks to http://m0115.web.fc2.com/ (dead link), http://cfile7.uf.tistory.com/image/14448E464F410BF22380BB
Pinouts thanks to http://www.68k.org/~degs/nextkeyboard.html
Keycodes from http://ftp.netbsd.org/pub/NetBSD/NetBSD-release-6/src/sys/arch/next68k/dev/
This software is licensed with a Modified BSD License.
All of this is supposed to be Free Software, Open Source, DFSG-free,
GPL-compatible, and OK to use in both free and proprietary applications.
Additions and corrections to this file are welcome.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of the copyright holders nor the names of
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#include "stdint.h"
#include "led.h"
void led_set(uint8_t usb_led)
{
}

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/*
NeXT non-ADB Keyboard USB Converter
Copyright 2013, Benjamin Gould (bgould@github.com)
Based on:
TMK firmware code Copyright 2011,2012 Jun WAKO <wakojun@gmail.com>
Arduino code by "Ladyada" Limor Fried (http://ladyada.net/, http://adafruit.com/), released under BSD license
Timing reference thanks to http://m0115.web.fc2.com/ (dead link), http://cfile7.uf.tistory.com/image/14448E464F410BF22380BB
Pinouts thanks to http://www.68k.org/~degs/nextkeyboard.html
Keycodes from http://ftp.netbsd.org/pub/NetBSD/NetBSD-release-6/src/sys/arch/next68k/dev/
This software is licensed with a Modified BSD License.
All of this is supposed to be Free Software, Open Source, DFSG-free,
GPL-compatible, and OK to use in both free and proprietary applications.
Additions and corrections to this file are welcome.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of the copyright holders nor the names of
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdint.h>
#include <stdbool.h>
#include <avr/io.h>
#include <util/delay.h>
#include "print.h"
#include "util.h"
#include "serial.h"
#include "matrix.h"
#include "debug.h"
#include "matrix.h"
#include "next_kbd.h"
static void matrix_make(uint8_t code);
static void matrix_break(uint8_t code);
static uint8_t matrix[MATRIX_ROWS];
#define ROW(code) ((code>>3)&0xF)
#define COL(code) (code&0x07)
static bool is_modified = false;
/* number of matrix rows */
inline
uint8_t matrix_rows(void)
{
return MATRIX_ROWS;
}
/* number of matrix columns */
inline
uint8_t matrix_cols(void)
{
return MATRIX_COLS;
}
#ifndef NEXT_KBD_LED1_ON
#define NEXT_KBD_LED1_ON
#endif
#ifndef NEXT_KBD_LED1_OFF
#define NEXT_KBD_LED1_OFF
#endif
#define NEXT_KBD_PWR_READ (NEXT_KBD_PWR_PIN&(1<<NEXT_KBD_PWR_BIT))
static bool power_state = false;
/* intialize matrix for scanning. should be called once. */
void matrix_init(void)
{
#ifdef DEBUG_ON_INIT
debug_enable = true;
#endif
// I've found that the matrix likes a little while for things to
// settle down before it gets started. Not sure why :)
_delay_ms(250);
dprintf("[ Intializing NeXT keyboard ]\n");
NEXT_KBD_LED1_DDR |= (1<<NEXT_KBD_LED1_BIT); // LED pin to output
NEXT_KBD_LED1_ON;
NEXT_KBD_PWR_DDR &= ~(1<<NEXT_KBD_PWR_BIT); // Power Button pin to input
NEXT_KBD_PWR_PIN |= (1<<NEXT_KBD_PWR_BIT); // KBD_PWR pull up
power_state = NEXT_KBD_PWR_READ ? false : true;
dprintf("Initial power button state: %b\n", power_state);
next_kbd_init();
// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
#ifdef NEXT_KBD_INIT_FLASH_LEDS
dprintf("flashing LEDs:");
// flash the LEDs after initialization
bool leds_on = true;
for (uint8_t i = 0; i <= 6; i++)
{
leds_on = leds_on ? false : true;
dprintf(" %b", leds_on);
next_kbd_set_leds(leds_on, leds_on);
_delay_ms(250);
}
dprintf("\n");
#endif
dprintf("[ NeXT keyboard initialized ]\n");
return;
}
#define NEXT_KBD_KEYCODE(response) (uint8_t)((response&0xFF)>>1)
#define NEXT_KBD_PRESSED_KEYCODE(response) (uint8_t)(((response)&0xF00)==0x400)
#define NEXT_KBD_PRESSED(response, mask) (uint8_t)(((response)&mask)>0)
#define NEXT_KBD_PRESSED_CONTROL(response) NEXT_KBD_PRESSED(response,0x01000)
#define NEXT_KBD_PRESSED_SHIFT_LEFT(response) NEXT_KBD_PRESSED(response,0x02000)
#define NEXT_KBD_PRESSED_SHIFT_RGHT(response) NEXT_KBD_PRESSED(response,0x04000)
#define NEXT_KBD_PRESSED_CMD_LEFT(response) NEXT_KBD_PRESSED(response,0x08000)
#define NEXT_KBD_PRESSED_CMD_RGHT(response) NEXT_KBD_PRESSED(response,0x10000)
#define NEXT_KBD_PRESSED_ALT_LEFT(response) NEXT_KBD_PRESSED(response,0x20000)
#define NEXT_KBD_PRESSED_ALT_RGHT(response) NEXT_KBD_PRESSED(response,0x40000)
#define NEXT_KBD_MAKE_OR_BREAK(key, code) \
do { \
if (NEXT_KBD_PRESSED_##key(resp) > 0) \
matrix_make(code); \
else \
matrix_break(code); \
} while (0);
#define NEXT_KBD_PWR_KEYCODE 0x58
/* scan all key states on matrix */
uint8_t matrix_scan(void)
{
_delay_ms(20);
//next_kbd_set_leds(false, false);
NEXT_KBD_LED1_OFF;
is_modified = false;
if (!NEXT_KBD_PWR_READ) {
matrix_make(NEXT_KBD_PWR_KEYCODE);
power_state = 1;
if (is_modified)
{
dprintf("Power state 1\n");
}
} else {
matrix_break(NEXT_KBD_PWR_KEYCODE);
power_state = 0;
if (is_modified)
{
dprintf("Power state 0\n");
}
}
uint32_t resp = (next_kbd_recv());
if (resp == NEXT_KBD_KMBUS_IDLE)
{
return 0;
}
NEXT_KBD_LED1_ON;
next_kbd_set_leds(
NEXT_KBD_PRESSED_SHIFT_LEFT(resp) ? true : false,
NEXT_KBD_PRESSED_SHIFT_RGHT(resp) ? true : false
);
dprintf("[ r=%04lX keycode=%02X pressed=%X CTRL=%X SHIFT_LEFT=%X SHIFT_RGHT=%X CMD_LEFT=%X CMD_RGHT=%X ALT_LEFT=%X ALT_RGHT=%X ]\n", \
resp, \
NEXT_KBD_KEYCODE(resp), \
NEXT_KBD_PRESSED_KEYCODE(resp), \
NEXT_KBD_PRESSED_CONTROL(resp), \
NEXT_KBD_PRESSED_SHIFT_LEFT(resp), \
NEXT_KBD_PRESSED_SHIFT_RGHT(resp), \
NEXT_KBD_PRESSED_CMD_LEFT(resp), \
NEXT_KBD_PRESSED_CMD_RGHT(resp), \
NEXT_KBD_PRESSED_ALT_LEFT(resp), \
NEXT_KBD_PRESSED_ALT_RGHT(resp) \
);
// Modifier keys don't return keycode; have to check the upper bits
NEXT_KBD_MAKE_OR_BREAK(ALT_RGHT, 0x51);
NEXT_KBD_MAKE_OR_BREAK(ALT_LEFT, 0x52);
NEXT_KBD_MAKE_OR_BREAK(CMD_RGHT, 0x53);
NEXT_KBD_MAKE_OR_BREAK(CMD_LEFT, 0x54);
NEXT_KBD_MAKE_OR_BREAK(SHIFT_RGHT, 0x55);
NEXT_KBD_MAKE_OR_BREAK(SHIFT_LEFT, 0x56);
NEXT_KBD_MAKE_OR_BREAK(CONTROL, 0x57);
NEXT_KBD_MAKE_OR_BREAK(KEYCODE, NEXT_KBD_KEYCODE(resp));
return 1;
}
/* whether modified from previous scan. used after matrix_scan. */
bool matrix_is_modified()
{
return is_modified;
}
/* whether a switch is on */
inline
bool matrix_is_on(uint8_t row, uint8_t col)
{
return (matrix[row] & (1<<col));
}
/* matrix state on row */
inline
uint8_t matrix_get_row(uint8_t row)
{
return matrix[row];
}
/* print matrix for debug */
void matrix_print(void)
{
}
inline
static void matrix_make(uint8_t code)
{
if (!matrix_is_on(ROW(code), COL(code))) {
matrix[ROW(code)] |= 1<<COL(code);
is_modified = true;
}
}
inline
static void matrix_break(uint8_t code)
{
if (matrix_is_on(ROW(code), COL(code))) {
matrix[ROW(code)] &= ~(1<<COL(code));
is_modified = true;
}
}

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/*
NeXT non-ADB Keyboard Protocol
Copyright 2013, Benjamin Gould (bgould@github.com)
Based on:
TMK firmware code Copyright 2011,2012 Jun WAKO <wakojun@gmail.com>
Arduino code by "Ladyada" Limor Fried (http://ladyada.net/, http://adafruit.com/), released under BSD license
Timing reference thanks to http://m0115.web.fc2.com/ (dead link), http://cfile7.uf.tistory.com/image/14448E464F410BF22380BB
Pinouts thanks to http://www.68k.org/~degs/nextkeyboard.html
Keycodes from http://ftp.netbsd.org/pub/NetBSD/NetBSD-release-6/src/sys/arch/next68k/dev/
This software is licensed with a Modified BSD License.
All of this is supposed to be Free Software, Open Source, DFSG-free,
GPL-compatible, and OK to use in both free and proprietary applications.
Additions and corrections to this file are welcome.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of the copyright holders nor the names of
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdint.h>
#include <stdbool.h>
#include <util/atomic.h>
#include <util/delay.h>
#include "next_kbd.h"
#include "debug.h"
static inline void out_lo(void);
static inline void out_hi(void);
static inline void query(void);
static inline void reset(void);
static inline uint32_t response(void);
#define out_hi_delay(intervals) do { out_hi(); _delay_us(NEXT_KBD_TIMING * intervals); } while (0);
#define out_lo_delay(intervals) do { out_lo(); _delay_us(NEXT_KBD_TIMING * intervals); } while (0);
#define query_delay(intervals) do { query(); _delay_us(NEXT_KBD_TIMING * intervals); } while (0);
#define reset_delay(intervals) do { reset(); _delay_us(NEXT_KBD_TIMING * intervals); } while (0);
void next_kbd_init(void)
{
out_hi();
NEXT_KBD_IN_DDR &= ~(1<<NEXT_KBD_IN_BIT); // KBD_IN to input
NEXT_KBD_IN_PORT |= (1<<NEXT_KBD_IN_BIT); // KBD_IN pull up
query_delay(5);
reset_delay(8);
query_delay(5);
reset_delay(8);
}
void next_kbd_set_leds(bool left, bool right)
{
out_lo_delay(9);
out_hi_delay(3);
out_lo_delay(1);
if (left) {
out_hi_delay(1);
} else {
out_lo_delay(1);
}
if (right) {
out_hi_delay(1);
} else {
out_lo_delay(1);
}
out_lo_delay(7);
out_hi();
}
#define NEXT_KBD_READ (NEXT_KBD_IN_PIN&(1<<NEXT_KBD_IN_BIT))
uint32_t next_kbd_recv(void)
{
// First check to make sure that the keyboard is actually connected;
// if not, just return
// TODO: reflect the status of the keyboard in a return code
if (!NEXT_KBD_READ) {
sei();
return 0;
}
query();
uint32_t resp = response();
return resp;
}
static inline uint32_t response(void)
{
cli();
// try a 5ms read; this should be called after the query method has
// been run so if a key is pressed we should get a response within
// 5ms; if not then send a reset and exit
uint8_t i = 0;
uint32_t data = 0;
uint16_t reset_timeout = 50000;
while (NEXT_KBD_READ && reset_timeout) {
asm(""); _delay_us(1); reset_timeout--;
}
if (!reset_timeout) {
reset();
sei();
return 0;
}
_delay_us(NEXT_KBD_TIMING / 2);
for (; i < 22; i++)
{
if (NEXT_KBD_READ)
{
data |= ((uint32_t) 1 << i);
/* Note:
* My testing with the ATmega32u4 showed that there might
* something wrong with the timing here; by the end of the
* second data byte some of the modifiers can get bumped out
* to the next bit over if we just cycle through the data
* based on the expected interval. There is a bit (i = 10)
* in the middle of the data that is always on followed by
* one that is always off - so we'll use that to reset our
* timing in case we've gotten ahead of the keyboard;
*/
if (i == 10)
{
i++;
while (NEXT_KBD_READ) ;
_delay_us(NEXT_KBD_TIMING / 2);
}
} else {
/* redundant - but I don't want to remove if it might screw
* up the timing
*/
data |= ((uint32_t) 0 << i);
}
_delay_us(NEXT_KBD_TIMING);
}
sei();
return data;
}
static inline void out_lo(void)
{
NEXT_KBD_OUT_PORT &= ~(1<<NEXT_KBD_OUT_BIT);
NEXT_KBD_OUT_DDR |= (1<<NEXT_KBD_OUT_BIT);
}
static inline void out_hi(void)
{
/* input with pull up */
NEXT_KBD_OUT_DDR &= ~(1<<NEXT_KBD_OUT_BIT);
NEXT_KBD_OUT_PORT |= (1<<NEXT_KBD_OUT_BIT);
}
static inline void query(void)
{
out_lo_delay(5);
out_hi_delay(1);
out_lo_delay(3);
out_hi();
}
static inline void reset(void)
{
out_lo_delay(1);
out_hi_delay(4);
out_lo_delay(1);
out_hi_delay(6);
out_lo_delay(10);
out_hi();
}

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/*
NeXT non-ADB Keyboard Protocol
Copyright 2013, Benjamin Gould (bgould@github.com)
Based on:
TMK firmware code Copyright 2011,2012 Jun WAKO <wakojun@gmail.com>
Arduino code by "Ladyada" Limor Fried (http://ladyada.net/, http://adafruit.com/), released under BSD license
Timing reference thanks to http://m0115.web.fc2.com/ (dead link), http://cfile7.uf.tistory.com/image/14448E464F410BF22380BB
Pinouts thanks to http://www.68k.org/~degs/nextkeyboard.html
Keycodes from http://ftp.netbsd.org/pub/NetBSD/NetBSD-release-6/src/sys/arch/next68k/dev/
This software is licensed with a Modified BSD License.
All of this is supposed to be Free Software, Open Source, DFSG-free,
GPL-compatible, and OK to use in both free and proprietary applications.
Additions and corrections to this file are welcome.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of the copyright holders nor the names of
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdbool.h>
#ifndef NEXT_KBD_H
#define NEXT_KBD_H
#define NEXT_KBD_KMBUS_IDLE 0x300600
#define NEXT_KBD_TIMING 50
extern uint8_t next_kbd_error;
/* host role */
void next_kbd_init(void);
void next_kbd_set_leds(bool left, bool right);
uint32_t next_kbd_recv(void);
#endif