8 files changed, 729 insertions(+), 11 deletions(-)

M common/host.h
A keyboard/hid_liber/Makefile.lufa
A keyboard/hid_liber/Makefile.pjrc
A keyboard/hid_liber/config.h
A keyboard/hid_liber/keymap.c
A keyboard/hid_liber/led.c
A keyboard/hid_liber/matrix.c
M protocol/pjrc/usb.c

@@ 19,6 19,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define HOST_H
 
 #include <stdint.h>
+#include <stdbool.h>
 #include "report.h"
 #include "host_driver.h"
 

@@ 0,0 1,120 @@
+#----------------------------------------------------------------------------
+# 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 = hid_liber_lufa
+
+# Directory common source filess exist
+TOP_DIR = ../..
+
+# Directory keyboard dependent files exist
+TARGET_DIR = .
+
+
+# List C source files here. (C dependencies are automatically generated.)
+SRC +=	keymap.c \
+	matrix.c \
+	led.c
+
+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)
+
+
+# Build Options
+#   comment out to disable the options.
+#
+#MOUSEKEY_ENABLE = yes	# Mouse keys
+EXTRAKEY_ENABLE = yes	# Audio control and System control
+CONSOLE_ENABLE = yes	# Console for debug
+#NKRO_ENABLE = yes	# USB Nkey Rollover - not yet supported in LUFA
+#PS2_MOUSE_ENABLE = yes	# PS/2 mouse(TrackPoint) support
+
+
+# Boot Section Size in bytes
+#   Teensy halfKay   512
+#   Atmel DFU loader 4096
+#   LUFA bootloader  4096
+OPT_DEFS += -DBOOT_SIZE=4096
+
+
+# Search Path
+VPATH += $(TARGET_DIR)
+VPATH += $(TOP_DIR)
+
+include $(TOP_DIR)/protocol/lufa.mk
+include $(TOP_DIR)/common.mk
+include $(TOP_DIR)/rules.mk

@@ 0,0 1,90 @@
+#----------------------------------------------------------------------------
+# 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 = hid_liber_pjrc
+
+# 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
+
+
+# Build Options
+#   comment out to disable the options.
+#
+#MOUSEKEY_ENABLE = yes	# Mouse keys
+#PS2_MOUSE_ENABLE = yes	# PS/2 mouse(TrackPoint) support
+EXTRAKEY_ENABLE = yes	# Audio control and System control
+NKRO_ENABLE = yes	# USB Nkey Rollover
+CONSOLE_ENABLE = yes    # Console for debug
+
+
+# Search Path
+VPATH += $(TARGET_DIR)
+VPATH += $(TOP_DIR)
+
+include $(TOP_DIR)/protocol/pjrc.mk
+include $(TOP_DIR)/common.mk
+include $(TOP_DIR)/rules.mk

@@ 0,0 1,56 @@
+/*
+Copyright 2012 Jun Wako <wakojun@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
+
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0xB919
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    t.m.k.
+#define PRODUCT         HID Liberation
+
+
+/* message strings */
+#define DESCRIPTION     t.m.k. keyboard firmware for HID Liberation
+
+
+/* matrix size */
+#define MATRIX_ROWS 18
+#define MATRIX_COLS 8
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* Set 0 if need no debouncing */
+#define DEBOUNCE    7
+
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+// TODO: configurable
+#define DEBUG_LED 0
+#define DEBUG_LED_CONFIG
+#define DEBUG_LED_ON
+#define DEBUG_LED_OFF
+
+#endif

@@ 0,0 1,184 @@
+/*
+Copyright 2011 Jun Wako <wakojun@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/>.
+*/
+
+/* 
+ * Keymap for HID Liberator controller
+ */
+#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"
+
+
+// Convert physical keyboard layout to matrix array.
+// This is a macro to define keymap easily in keyboard layout form.
+#define KEYMAP( \
+    KG1, KH7, KJ7, KJ6, KJ1, KO5, KL1, KA6, KA7, KD7, KD5, KD1, KD2,      KB5, KB3, KO3, \
+    KG7, KG5, KH5, KJ5, KI5, KI7, KK7, KK5, KL5, KA5, KC5, KC7, KL7, KD6, KQ7, KN7, KM7, \
+    KG6, KG3, KH3, KJ3, KI3, KI6, KK6, KK3, KL3, KA3, KC3, KC6, KL6, KD4, KP7, KN5, KM5, \
+    KH6, KG4, KH4, KJ4, KI4, KI1, KK1, KK4, KL4, KA4, KC4, KC1, KD0,                     \
+    KF6, KQ0, KG0, KH0, KJ0, KI0, KI2, KK2, KK0, KL0, KA0, KC2, KF4,           KN1,      \
+    KO7, KE6, KB1,           KP1,                     KB2, KR4, KA2, KO0, KN2, KP2, KQ2  \
+) { \
+/*             0         1         2         3         4         5         6         7     */ \
+/* A */   { KC_##KA0, KC_NO   , KC_##KA2, KC_##KA3, KC_##KA4, KC_##KA5, KC_##KA6, KC_##KA7 }, \
+/* B */   { KC_NO   , KC_##KB1, KC_##KB2, KC_##KB3, KC_NO   , KC_##KB5, KC_NO   , KC_NO    }, \
+/* C */   { KC_NO   , KC_##KC1, KC_##KC2, KC_##KC3, KC_##KC4, KC_##KC5, KC_##KC6, KC_##KC7 }, \
+/* D */   { KC_##KD0, KC_##KD1, KC_##KD2, KC_NO   , KC_##KD4, KC_##KD5, KC_##KD6, KC_##KD7 }, \
+/* E */   { KC_NO   , KC_NO   , KC_NO   , KC_NO   , KC_NO   , KC_NO   , KC_##KE6, KC_NO    }, \
+/* F */   { KC_NO   , KC_NO   , KC_NO   , KC_NO   , KC_##KF4, KC_NO   , KC_##KF6, KC_NO    }, \
+/* G */   { KC_##KG0, KC_##KG1, KC_NO   , KC_##KG3, KC_##KG4, KC_##KG5, KC_##KG6, KC_##KG7  }, \
+/* H */   { KC_##KH0, KC_NO   , KC_NO   , KC_##KH3, KC_##KH4, KC_##KH5, KC_##KH6, KC_##KH7 }, \
+/* I */   { KC_##KI0, KC_##KI1, KC_##KI2, KC_##KI3, KC_##KI4, KC_##KI5, KC_##KI6, KC_##KI7 }, \
+/* J */   { KC_##KJ0, KC_##KJ1, KC_NO   , KC_##KJ3, KC_##KJ4, KC_##KJ5, KC_##KJ6, KC_##KJ7 }, \
+/* K */   { KC_##KK0, KC_##KK1, KC_##KK2, KC_##KK3, KC_##KK4, KC_##KK5, KC_##KK6, KC_##KK7 }, \
+/* L */   { KC_##KL0, KC_##KL1, KC_NO   , KC_##KL3, KC_##KL4, KC_##KL5, KC_##KL6, KC_##KL7 }, \
+/* M */   { KC_NO   , KC_NO   , KC_NO   , KC_NO   , KC_NO   , KC_##KM5, KC_NO   , KC_##KM7 }, \
+/* N */   { KC_NO   , KC_##KN1, KC_##KN2, KC_NO   , KC_NO   , KC_##KN5, KC_NO   , KC_##KN7 }, \
+/* O */   { KC_##KO0, KC_NO   , KC_NO   , KC_##KO3, KC_NO   , KC_##KO5, KC_NO   , KC_##KO7 }, \
+/* P */   { KC_NO   , KC_##KP1, KC_##KP2, KC_NO   , KC_NO   , KC_NO   , KC_NO   , KC_##KP7 }, \
+/* Q */   { KC_NO   , KC_NO   , KC_##KQ2, KC_NO   , KC_NO   , KC_NO   , KC_NO   , KC_##KQ7 }, \
+/* R */   { KC_NO   , KC_NO   , KC_NO   , KC_NO   , KC_##KR4, KC_NO   , KC_NO   , KC_NO    }  \
+}
+
+#define KEYCODE(layer, row, col) (pgm_read_byte(&keymaps[(layer)][(row)][(col)]))
+
+
+// Assign Fn key(0-7) to a layer to which switch with the Fn key pressed.
+static const uint8_t PROGMEM fn_layer[] = {
+    0,              // Fn0
+    1,              // Fn1
+    2,              // Fn2
+    3,              // Fn3
+    4,              // Fn4
+    5,              // Fn5
+    6,              // Fn6
+    7               // Fn7
+};
+
+// Assign Fn key(0-7) to a keycode sent when release Fn key without use of the layer.
+// See layer.c for details.
+static const uint8_t PROGMEM fn_keycode[] = {
+    KC_NO,          // Fn0
+    KC_NO,          // Fn1
+    KC_NO,          // Fn2
+    KC_NO,          // Fn3
+    KC_NO,          // Fn4
+    KC_NO,          // Fn5
+    KC_NO,          // Fn6
+    KC_NO           // Fn7
+};
+
+/*
+ * Tenkeyless keyboard default layout, ISO & ANSI (ISO is next to right shift,
+ * not present on ANSI, other ISO switches move from ANSI layout but are same
+ * switch
+ *
+ * ,---.   ,---------------. ,---------------. ,---------------. ,-----------.
+ * |Esc|   |F1 |F2 |F3 |F4 | |F5 |F6 |F7 |F8 | |F9 |F10|F11|F12| |PrS|ScL|Pau|
+ * `---'   `---------------' `---------------' `---------------' `-----------'
+ * ,-----------------------------------------------------------. ,-----------.
+ * |~  |  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Backsp | |Ins|Hom|PgU|
+ * |-----------------------------------------------------------| |-----------|
+ * |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|    \| |Del|End|PgD|
+ * |-----------------------------------------------------------| `-----------'
+ * |Caps  |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Return  |              
+ * |-----------------------------------------------------------|     ,---.    
+ * |Shft|ISO|  Z|  X|  C|  V|  B|  N|  M|  ,|  .|  /|Shift     |     |Up |    
+ * |-----------------------------------------------------------| ,-----------.
+ * |Ctl|Gui|Alt|          Space                |Alt|Gui|App|Ctl| |Lef|Dow|Rig|
+ * `-----------------------------------------------------------' `-----------'
+ */
+
+
+static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+/* Layer 0: Default Layer
+ *
+ * ANSI:
+ *
+ * ,---.   ,---------------. ,---------------. ,---------------. ,-----------.
+ * |Esc|   |F1 |F2 |F3 |F4 | |F5 |F6 |F7 |F8 | |F9 |F10|F11|F12| |PrS|ScL|Pau|
+ * `---'   `---------------' `---------------' `---------------' `-----------'
+ * ,-----------------------------------------------------------. ,-----------.
+ * |~  |  1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Backsp | |Ins|Hom|PgU|
+ * |-----------------------------------------------------------| |-----------|
+ * |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|    \| |Del|End|PgD|
+ * |-----------------------------------------------------------| `-----------'
+ * |FN1   |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Return  |              
+ * |-----------------------------------------------------------|     ,---.    
+ * |Shft    |  Z|  X|  C|  V|  B|  N|  M|  ,|  .|  /|Shift     |     |Up |    
+ * |-----------------------------------------------------------| ,-----------.
+ * |Ctl|Gui|Alt|          Space                |Alt|Gui|App|Ctl| |Lef|Dow|Rig|
+ * `-----------------------------------------------------------' `-----------'
+ */
+
+  KEYMAP(\
+    ESC,  F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9, F10,  F11,  F12,       PSCR, SLCK,  BRK, \
+    GRV,   1,   2,   3,   4,   5,   6,   7,   8,   9,   0, MINS,  EQL, BSPC,  INS, HOME, PGUP, \
+    TAB,   Q,   W,   E,   R,   T,   Y,   U,   I,   O,   P, LBRC, RBRC, BSLS,  DEL,  END, PGDN, \
+    FN1,   A,   S,   D,   F,   G,   H,   J,   K,   L, SCLN, QUOT,       ENT,                   \
+    LSFT, 0,  Z,   X,   C,   V,   B,   N,   M, COMM,  DOT, SLSH,      RSFT,         UP,       \
+    LCTL, LGUI, LALT,             SPC,                RALT, RGUI, APP, RCTL, LEFT, DOWN, RGHT),
+
+
+/*  
+ * ,---.   ,---------------. ,---------------. ,---------------. ,-----------.
+ * |Esc|   |F1 |F2 |F3 |F4 | |F5 |F6 |F7 |F8 | |F9 |F10|F11|F12| |PrS|ScL|Slp|
+ * `---'   `---------------' `---------------' `---------------' `-----------'
+ * ,-----------------------------------------------------------. ,-----------.
+ * |~  |  1|  2|  3|  4|  5|  6|  7|  8|  9|Mut|V- |V+ |Backsp | |Ins|Hom|PgU|
+ * |-----------------------------------------------------------| |-----------|
+ * |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|MSt|Ply|Prv|Nxt|Media| |Del|End|PgD|
+ * |-----------------------------------------------------------| `-----------'
+ * |FN1   |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Return  |              
+ * |-----------------------------------------------------------|     ,---.    
+ * |Shft    |  Z|  X|Clc|  V|  B|  N|  M|  ,|  .|  /|Caps      |     |Up |    
+ * |-----------------------------------------------------------| ,-----------.
+ * |Ctl|Gui|Alt|          Space                |Alt|Gui|App|Ctl| |Lef|Dow|Rig|
+ * `-----------------------------------------------------------' `-----------'
+ */
+
+ KEYMAP(\
+    ESC,  F1,  F2,  F3,  F4,  F5,  F6,  F7,  F8,  F9, F10,  F11,  F12,       PSCR, SLCK, SLEP, \
+    GRV,   1,   2,   3,   4,   5,   6,   7,   8,   9,MUTE, VOLD, VOLU, BSPC,  INS, HOME, PGUP, \
+    TAB,   Q,   W,   E,   R,   T,   Y,   U,   I,MSTP,MPLY, MPRV, MNXT, MSEL,  DEL,  END, PGDN, \
+    FN1,   A,   S,   D,   F,   G,   H,   J,   K,   L, SCLN, QUOT,       ENT,                   \
+    LSFT, NO,   Z,   X,CALC,   V,   B,   N,   M, COMM, DOT, SLSH,      CAPS,         UP,       \
+    LCTL, LGUI, LALT,             SPC,                RALT, RGUI, APP, RCTL, LEFT, DOWN, RGHT),
+
+
+};
+
+
+uint8_t keymap_get_keycode(uint8_t layer, uint8_t row, uint8_t col)
+{
+    return KEYCODE(layer, row, col);
+}
+
+uint8_t keymap_fn_layer(uint8_t index)
+{
+    return pgm_read_byte(&fn_layer[index]);
+}
+
+uint8_t keymap_fn_keycode(uint8_t index)
+{
+    return pgm_read_byte(&fn_keycode[index]);
+}

@@ 0,0 1,34 @@
+/*
+Copyright 2012 Jun Wako <wakojun@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 <avr/io.h>
+#include "stdint.h"
+#include "led.h"
+
+
+void led_set(uint8_t usb_led)
+{
+    if (usb_led & (1<<USB_LED_CAPS_LOCK))
+        PORTB &= ~(1<<5);
+    else
+        PORTB |= (1<<5);
+
+    if (usb_led & (1<<USB_LED_SCROLL_LOCK))
+        PORTB &= ~(1<<6);
+    else
+        PORTB |= (1<<6);
+}

@@ 0,0 1,233 @@
+/* Copyright 2012 Jun Wako <wakojun@gmail.com>
+ *
+ * This is heavily based on hid_liber/board.{c|h}.
+ * https://github.com/BathroomEpiphanies/AVR-Keyboard
+ *
+ * Copyright (c) 2012 Fredrik Atmer, Bathroom Epiphanies Inc
+ * http://bathroomepiphanies.com
+ *
+ * As for liscensing consult with the original files or its author.
+ */
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <util/delay.h>
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+
+
+#ifndef DEBOUNCE
+#   define DEBOUNCE	0
+#endif
+static uint8_t debouncing = DEBOUNCE;
+
+// bit array of key state(1:on, 0:off)
+static matrix_row_t *matrix;
+static matrix_row_t *matrix_debounced;
+static matrix_row_t _matrix0[MATRIX_ROWS];
+static matrix_row_t _matrix1[MATRIX_ROWS];
+
+
+#define _DDRA (uint8_t *const)&DDRA
+#define _DDRB (uint8_t *const)&DDRB
+#define _DDRC (uint8_t *const)&DDRC
+#define _DDRD (uint8_t *const)&DDRD
+#define _DDRE (uint8_t *const)&DDRE
+#define _DDRF (uint8_t *const)&DDRF
+
+#define _PINA (uint8_t *const)&PINA
+#define _PINB (uint8_t *const)&PINB
+#define _PINC (uint8_t *const)&PINC
+#define _PIND (uint8_t *const)&PIND
+#define _PINE (uint8_t *const)&PINE
+#define _PINF (uint8_t *const)&PINF
+
+#define _PORTA (uint8_t *const)&PORTA
+#define _PORTB (uint8_t *const)&PORTB
+#define _PORTC (uint8_t *const)&PORTC
+#define _PORTD (uint8_t *const)&PORTD
+#define _PORTE (uint8_t *const)&PORTE
+#define _PORTF (uint8_t *const)&PORTF
+
+#define _BIT0 0x01
+#define _BIT1 0x02
+#define _BIT2 0x04
+#define _BIT3 0x08
+#define _BIT4 0x10
+#define _BIT5 0x20
+#define _BIT6 0x40
+#define _BIT7 0x80
+
+/* Specifies the ports and pin numbers for the rows */
+static
+uint8_t *const row_ddr[MATRIX_ROWS] = {
+                                           _DDRB,                  _DDRB,
+                                                           _DDRC,  _DDRC,
+           _DDRD,  _DDRD,  _DDRD,  _DDRD,  _DDRD,  _DDRD,  _DDRD,  _DDRD,
+           _DDRF,  _DDRF,                  _DDRF,  _DDRF,  _DDRF,  _DDRF};
+
+static
+uint8_t *const row_port[MATRIX_ROWS] = {
+                                          _PORTB,                 _PORTB,
+                                                          _PORTC, _PORTC,
+          _PORTD, _PORTD, _PORTD, _PORTD, _PORTD, _PORTD, _PORTD, _PORTD,
+          _PORTF, _PORTF,                 _PORTF, _PORTF, _PORTF, _PORTF};
+
+static
+uint8_t *const row_pin[MATRIX_ROWS] = {
+                                           _PINB,                  _PINB,
+                                                           _PINC,  _PINC,
+           _PIND,  _PIND,  _PIND,  _PIND,  _PIND,  _PIND,  _PIND,  _PIND,
+           _PINF,  _PINF,                  _PINF,  _PINF,  _PINF,  _PINF};
+
+static
+const uint8_t row_bit[MATRIX_ROWS] = {
+                                           _BIT4,                  _BIT7,
+                                                           _BIT6,  _BIT7,
+           _BIT0,  _BIT1,  _BIT2,  _BIT3,  _BIT4,  _BIT5,  _BIT6,  _BIT7,
+           _BIT0,  _BIT1,                  _BIT4,  _BIT5,  _BIT6,  _BIT7};
+
+static
+const uint8_t mask = 0x0E;
+
+/* Specifies the ports and pin numbers for the columns */
+static
+const uint8_t   col_bit[MATRIX_COLS] = {  0x00,   0x02,   0x04,   0x06,   0x08,   0x0A,   0x0C,   0x0E};
+
+static
+inline void pull_column(int col) {
+  PORTB = col_bit[col] | (PORTB & ~mask);
+}
+
+static
+inline void release_column(int col) {
+}
+
+/* PORTB is set as input with pull-up resistors
+   PORTC,D,E,F are set to high output */
+static
+void setup_io_pins(void) {
+  uint8_t row;
+  DDRB  |=  0x0E;
+  PORTB &= ~0x0E;
+  for(row = 0; row < MATRIX_ROWS; row++) {
+    *row_ddr[row]  &= ~row_bit[row];
+    *row_port[row] &= ~row_bit[row];
+  }
+}
+
+static
+void setup_leds(void) {
+  DDRB  |=  0x60;
+  PORTB |=  0x60;
+}
+
+
+inline
+uint8_t matrix_rows(void)
+{
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+    return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+    // To use PORTF disable JTAG with writing JTD bit twice within four cycles.
+    MCUCR |= (1<<JTD);
+    MCUCR |= (1<<JTD);
+	
+    // initialize row and col
+    setup_io_pins();
+    setup_leds();
+
+    // initialize matrix state: all keys off
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix0[i] = 0x00;
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) _matrix1[i] = 0x00;
+    matrix = _matrix0;
+    matrix_debounced = _matrix1;
+}
+
+uint8_t matrix_scan(void)
+{
+    if (!debouncing) {
+        uint8_t *tmp = matrix_debounced;
+        matrix_debounced = matrix;
+        matrix = tmp;
+    }
+
+    for (uint8_t col = 0; col < MATRIX_COLS; col++) {  // 0-7
+        pull_column(col);   // output hi on theline
+        _delay_us(3);       // without this wait it won't read stable value.
+        for (uint8_t row = 0; row < MATRIX_ROWS; row++) {  // 0-17
+            bool prev_bit = matrix[row] & (1<<col);
+            bool curr_bit = *row_pin[row] & row_bit[row];
+            if (prev_bit != curr_bit) {
+                matrix[row] ^= (1<<col);
+                if (debouncing) {
+                    debug("bounce!: "); debug_hex(debouncing); print("\n");
+                }
+                debouncing = DEBOUNCE;
+            }
+        }
+        release_column(col);
+    }
+
+    if (debouncing) {
+        debouncing--;
+    }
+
+    return 1;
+}
+
+bool matrix_is_modified(void)
+{
+    // NOTE: no longer used
+    return true;
+}
+
+inline
+bool matrix_has_ghost(void)
+{
+    return false;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix_debounced[row] & (1<<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+    return matrix_debounced[row];
+}
+
+void matrix_print(void)
+{
+    print("\nr/c 01234567\n");
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        phex(row); print(": ");
+        pbin_reverse(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++) {
+        for (uint8_t j = 0; j < MATRIX_COLS; j++) {
+            if (matrix_is_on(i, j))
+                count++;
+        }
+    }
+    return count;
+}

@@ 128,7 128,7 @@ static const uint8_t PROGMEM endpoint_config_table[] = {
 // spec and relevant portions of any USB class specifications!
 
 
-static uint8_t PROGMEM device_descriptor[] = {
+static const uint8_t PROGMEM device_descriptor[] = {
 	18,					// bLength
 	1,					// bDescriptorType
 	0x00, 0x02,				// bcdUSB


@@ 146,7 146,7 @@ static uint8_t PROGMEM device_descriptor[] = {
 };
 
 // Keyboard Protocol 1, HID 1.11 spec, Appendix B, page 59-60
-static uint8_t PROGMEM keyboard_hid_report_desc[] = {
+static const uint8_t PROGMEM keyboard_hid_report_desc[] = {
         0x05, 0x01,          // Usage Page (Generic Desktop),
         0x09, 0x06,          // Usage (Keyboard),
         0xA1, 0x01,          // Collection (Application),


@@ 181,7 181,7 @@ static uint8_t PROGMEM keyboard_hid_report_desc[] = {
         0xc0                 // End Collection
 };
 #ifdef NKRO_ENABLE
-static uint8_t PROGMEM keyboard2_hid_report_desc[] = {
+static const uint8_t PROGMEM keyboard2_hid_report_desc[] = {
         0x05, 0x01,                     // Usage Page (Generic Desktop),
         0x09, 0x06,                     // Usage (Keyboard),
         0xA1, 0x01,                     // Collection (Application),


@@ 222,7 222,7 @@ static uint8_t PROGMEM keyboard2_hid_report_desc[] = {
 // http://www.microchip.com/forums/tm.aspx?high=&m=391435&mpage=1#391521
 // http://www.keil.com/forum/15671/
 // http://www.microsoft.com/whdc/device/input/wheel.mspx
-static uint8_t PROGMEM mouse_hid_report_desc[] = {
+static const uint8_t PROGMEM mouse_hid_report_desc[] = {
     /* mouse */
     0x05, 0x01,                    // USAGE_PAGE (Generic Desktop)
     0x09, 0x02,                    // USAGE (Mouse)


@@ 273,7 273,7 @@ static uint8_t PROGMEM mouse_hid_report_desc[] = {
 };
 #endif
 
-static uint8_t PROGMEM debug_hid_report_desc[] = {
+static const uint8_t PROGMEM debug_hid_report_desc[] = {
 	0x06, 0x31, 0xFF,			// Usage Page 0xFF31 (vendor defined)
 	0x09, 0x74,				// Usage 0x74
 	0xA1, 0x53,				// Collection 0x53


@@ 289,7 289,7 @@ static uint8_t PROGMEM debug_hid_report_desc[] = {
 #ifdef EXTRAKEY_ENABLE
 // audio controls & system controls
 // http://www.microsoft.com/whdc/archive/w2kbd.mspx
-static uint8_t PROGMEM extra_hid_report_desc[] = {
+static const uint8_t PROGMEM extra_hid_report_desc[] = {
     /* system control */
     0x05, 0x01,                    // USAGE_PAGE (Generic Desktop)
     0x09, 0x80,                    // USAGE (System Control)


@@ 348,7 348,7 @@ static uint8_t PROGMEM extra_hid_report_desc[] = {
 
 #define NUM_INTERFACES                  (KBD2_HID_DESC_NUM + 1)
 #define CONFIG1_DESC_SIZE               (9+(9+9+7)*NUM_INTERFACES)
-static uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = {
+static const uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = {
 	// configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10
 	9, 					// bLength;
 	2,					// bDescriptorType;


@@ 515,17 515,17 @@ struct usb_string_descriptor_struct {
 	uint8_t bDescriptorType;
 	int16_t wString[];
 };
-static struct usb_string_descriptor_struct PROGMEM string0 = {
+static const struct usb_string_descriptor_struct PROGMEM string0 = {
 	4,
 	3,
 	{0x0409}
 };
-static struct usb_string_descriptor_struct PROGMEM string1 = {
+static const struct usb_string_descriptor_struct PROGMEM string1 = {
 	sizeof(STR_MANUFACTURER),
 	3,
 	STR_MANUFACTURER
 };
-static struct usb_string_descriptor_struct PROGMEM string2 = {
+static const struct usb_string_descriptor_struct PROGMEM string2 = {
 	sizeof(STR_PRODUCT),
 	3,
 	STR_PRODUCT


@@ 533,7 533,7 @@ static struct usb_string_descriptor_struct PROGMEM string2 = {
 
 // This table defines which descriptor data is sent for each specific
 // request from the host (in wValue and wIndex).
-static struct descriptor_list_struct {
+static const struct descriptor_list_struct {
 	uint16_t	wValue;     // descriptor type
 	uint16_t	wIndex;
 	const uint8_t	*addr;