From f7bb7c4fa99e6bfae311bd6674b6a2bd8537ea73 Mon Sep 17 00:00:00 2001 From: Benjamin Gould Date: Mon, 6 Jan 2014 14:43:59 -0500 Subject: Added NeXT keyboard converter --- protocol/next_kbd.c | 204 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 204 insertions(+) create mode 100644 protocol/next_kbd.c (limited to 'protocol/next_kbd.c') diff --git a/protocol/next_kbd.c b/protocol/next_kbd.c new file mode 100644 index 0000000000..a5a07a7a85 --- /dev/null +++ b/protocol/next_kbd.c @@ -0,0 +1,204 @@ +/* + +NeXT non-ADB Keyboard Protocol + +Copyright 2013, Benjamin Gould (bgould@github.com) + +Based on: +TMK firmware code Copyright 2011,2012 Jun WAKO +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 +#include +#include +#include +#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<