2 Copyright 2012 Jun Wako <wakojun@gmail.com>
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include <avr/interrupt.h>
23 #define VENDOR_ID 0xFEED
24 #define PRODUCT_ID 0x6512
25 #define DEVICE_VER 0x0001
26 #define MANUFACTURER t.m.k.
27 #define PRODUCT XT keyboard converter
28 #define DESCRIPTION convert XT keyboard to USB
32 #define MATRIX_ROWS 16 // keycode bit: 3-0
33 #define MATRIX_COLS 8 // keycode bit: 6-4
36 /* key combination for command */
37 #define IS_COMMAND() ( \
38 keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) || \
39 keyboard_report->mods == (MOD_BIT(KC_LCTRL) | MOD_BIT(KC_RSHIFT)) \
43 //#define NO_SUSPEND_POWER_DOWN
48 #define XT_CLOCK_PORT PORTD
49 #define XT_CLOCK_PIN PIND
50 #define XT_CLOCK_DDR DDRD
51 #define XT_CLOCK_BIT 1
52 #define XT_DATA_PORT PORTD
53 #define XT_DATA_PIN PIND
54 #define XT_DATA_DDR DDRD
56 #define XT_RST_PORT PORTB
57 #define XT_RST_PIN PINB
58 #define XT_RST_DDR DDRB
61 /* hard reset: low pulse for 500ms and after that HiZ for safety */
62 #define XT_RESET() do { \
63 XT_RST_PORT &= ~(1<<XT_RST_BIT); \
64 XT_RST_DDR |= (1<<XT_RST_BIT); \
66 XT_RST_DDR &= ~(1<<XT_RST_BIT); \
69 /* INT1 for falling edge of clock line */
70 #define XT_INT_INIT() do { \
71 EICRA |= ((1<<ISC11) | \
74 /* clears flag and enables interrupt */
75 #define XT_INT_ON() do { \
79 #define XT_INT_OFF() do { \
80 EIMSK &= ~(1<<INT1); \
82 #define XT_INT_VECT INT1_vect