~ruther/qmk_firmware

83f0e800e53a6d91a814d19f94bc5401a6322971 — tmk 12 years ago 38effe4 + 3f47bcb
Merge branch 'phantom'
M common/command.c => common/command.c +1 -0
@@ 234,6 234,7 @@ static bool command_common(uint8_t code)
            break;
#ifdef NKRO_ENABLE
        case KC_N:
            clear_keyboard(); //Prevents stuck keys.
            keyboard_nkro = !keyboard_nkro;
            if (keyboard_nkro)
                print("NKRO: enabled\n");

M common/keyboard.c => common/keyboard.c +5 -5
@@ 564,20 564,20 @@ void keyboard_task(void)
    matrix_row_t matrix_change = 0;

    matrix_scan();
    for (int r = 0; r < MATRIX_ROWS; r++) {
    for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
        matrix_row = matrix_get_row(r);
        matrix_change = matrix_row ^ matrix_prev[r];
        if (matrix_change) {
            if (debug_matrix) matrix_print();

            for (int c = 0; c < MATRIX_COLS; c++) {
                if (matrix_change & (1<<c)) {
            for (uint8_t c = 0; c < MATRIX_COLS; c++) {
                if (matrix_change & ((matrix_row_t)1<<c)) {
                    process_key((keyevent_t){
                        .key = (key_t){ .row = r, .col = c },
                        .pressed = (matrix_row & (1<<c))
                        .pressed = (matrix_row & ((matrix_row_t)1<<c))
                    });
                    // record a processed key
                    matrix_prev[r] ^= (1<<c);
                    matrix_prev[r] ^= ((matrix_row_t)1<<c);
                    // process a key per task call
                    goto MATRIX_LOOP_END;
                }

M common/print.c => common/print.c +1 -1
@@ 138,7 138,7 @@ void print_hex32(uint32_t data)
}


void print_bin(uint8_t data)
void print_bin8(uint8_t data)
{
    for (int i = 7; i >= 0; i--) {
        sendchar((data & (1<<i)) ? '1' : '0');

A keyboard/phantom/Makefile.lufa => keyboard/phantom/Makefile.lufa +120 -0
@@ 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 = phantom_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=512


# Search Path
VPATH += $(TARGET_DIR)
VPATH += $(TOP_DIR)

include $(TOP_DIR)/protocol/lufa.mk
include $(TOP_DIR)/common.mk
include $(TOP_DIR)/rules.mk

A keyboard/phantom/Makefile.pjrc => keyboard/phantom/Makefile.pjrc +90 -0
@@ 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 = phantom_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

A keyboard/phantom/config.h => keyboard/phantom/config.h +56 -0
@@ 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      0x6057
#define DEVICE_VER      0x0001
#define MANUFACTURER    t.m.k.
#define PRODUCT         Phantom


/* message strings */
#define DESCRIPTION     t.m.k. keyboard firmware for Phantom


/* matrix size */
#define MATRIX_ROWS 6
#define MATRIX_COLS 17

/* 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

A keyboard/phantom/keymap.c => keyboard/phantom/keymap.c +172 -0
@@ 0,0 1,172 @@
/*
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 Phantom 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( \
    K5A, K5C, K5D, K5E, K5F, K5G, K5H, K5I, K5J, K5K, K5L, K5M, K5N,           K5O, K5P, K5Q, \
    K5B, K4A, K4B, K4C, K4D, K4E, K4F, K4G, K4H, K4I, K4J, K4K, K4L, K4N,      K4O, K4P, K4Q, \
    K3A, K3B, K3C, K3D, K3E, K3F, K3G, K3H, K3I, K3J, K3K, K3L, K3M, K3N,      K3O, K3P, K3Q, \
    K2A, K2B, K2C, K2D, K2E, K2F, K2G, K2H, K2I, K2J, K2K, K2L, K2N,           K2O, K2P, K2Q, \
    K1A,      K1C, K1D, K1E, K1F, K1G, K1H, K1I, K1J, K1K, K1L, K1N,           K1O, K1P, K1Q, \
    K0A, K0B, K0C,           K0H,                     K0K, K0L, K0M, K0N,      K0O, K0P, K0Q  \
) { \
/*             A         B         C         D         E         F         G         H         I         J         K         L          M        N          O         P         Q    */  \
/* 0 */   { KC_##K0A, KC_##K0B, KC_##K0C, KC_NO   , KC_NO   , KC_NO   , KC_NO   , KC_##K0H, KC_NO   , KC_NO   , KC_##K0K, KC_##K0L, KC_##K0M, KC_##K0N, KC_##K0O, KC_##K0P, KC_##K0Q}, \
/* 1 */   { KC_##K1A, KC_NO   , KC_##K1C, KC_##K1D, KC_##K1E, KC_##K1F, KC_##K1G, KC_##K1H, KC_##K1I, KC_##K1J, KC_##K1K, KC_##K1L, KC_NO   , KC_##K1N, KC_##K1O, KC_##K1P, KC_##K1Q}, \
/* 2 */   { KC_##K2A, KC_##K2B, KC_##K2C, KC_##K2D, KC_##K2E, KC_##K2F, KC_##K2G, KC_##K2H, KC_##K2I, KC_##K2J, KC_##K2K, KC_##K2L, KC_NO   , KC_##K2N, KC_##K2O, KC_##K2P, KC_##K2Q}, \
/* 3 */   { KC_##K3A, KC_##K3B, KC_##K3C, KC_##K3D, KC_##K3E, KC_##K3F, KC_##K3G, KC_##K3H, KC_##K3I, KC_##K3J, KC_##K3K, KC_##K3L, KC_##K3M, KC_##K3N, KC_##K3O, KC_##K3P, KC_##K3Q}, \
/* 4 */   { KC_##K4A, KC_##K4B, KC_##K4C, KC_##K4D, KC_##K4E, KC_##K4F, KC_##K4G, KC_##K4H, KC_##K4I, KC_##K4J, KC_##K4K, KC_##K4L, KC_NO   , KC_##K4N, KC_##K4O, KC_##K4P, KC_##K4Q}, \
/* 5 */   { KC_##K5A, KC_##K5B, KC_##K5C, KC_##K5D, KC_##K5E, KC_##K5F, KC_##K5G, KC_##K5H, KC_##K5I, KC_##K5J, KC_##K5K, KC_##K5L, KC_##K5M, KC_##K5N, KC_##K5O, KC_##K5P, KC_##K5Q}, \
}

#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
};

/*
 * Phantom keyboard layout with winkeys and 7bit style editing block. I am
 * Not in the mood to implement full 7-bit keymap.
 * 
 *
 * ,---.   ,---------------. ,---------------. ,---------------. ,-----------.
 * |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  | |???|???|???|
 * |-----------------------------------------------------------| |---|---|---|
 * |Shift   |  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|
 * |-----------------------------------------------------------| |---|---|---|
 * |Caps  |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Return  | |???|???|???|
 * |-----------------------------------------------------------| |---|---|---|
 * |Shift   |  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,    0,    0,    0, \
    LSFT,       Z,   X,   C,   V,   B,   N,   M, COMM,  DOT, SLSH,      RSFT,   0,   UP,    0, \
    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,    0,    0,    0, \
    LSFT,       Z,   X,CALC,   V,   B,   N,   M, COMM, DOT, SLSH,      CAPS,    0,   UP,    0, \
    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]);
}

A keyboard/phantom/led.c => keyboard/phantom/led.c +34 -0
@@ 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<<6);
    else
        PORTB |= (1<<6);

    if (!(usb_led & (1<<USB_LED_SCROLL_LOCK)))
        PORTB &= ~(1<<7);
    else
        PORTB |= (1<<7);
}

A keyboard/phantom/matrix.c => keyboard/phantom/matrix.c +249 -0
@@ 0,0 1,249 @@
/* Copyright 2012 Jun Wako <wakojun@gmail.com>
 *
 * This is heavily based on phantom/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,  _DDRB,  _DDRB,  _DDRB,  _DDRB};

static
uint8_t *const row_port[MATRIX_ROWS] = {_PORTB, _PORTB, _PORTB, _PORTB, _PORTB, _PORTB};

static
uint8_t *const row_pin[MATRIX_ROWS] = {_PINB,  _PINB,  _PINB,  _PINB,  _PINB,  _PINB};

static
const uint8_t row_bit[MATRIX_ROWS] = { _BIT0,  _BIT1,  _BIT2,  _BIT3,  _BIT4,  _BIT5};

/* Specifies the ports and pin numbers for the columns */
static
uint8_t *const  col_ddr[MATRIX_COLS] = { _DDRD,  _DDRC,  _DDRC,  _DDRD,  _DDRD,  _DDRE,
				  _DDRF,  _DDRF,  _DDRF,  _DDRF,  _DDRF,  _DDRF,
				  _DDRD,  _DDRD,  _DDRD,  _DDRD,  _DDRD};

static
uint8_t *const col_port[MATRIX_COLS] = {_PORTD, _PORTC, _PORTC, _PORTD, _PORTD, _PORTE,
				 _PORTF, _PORTF, _PORTF, _PORTF, _PORTF, _PORTF,
				 _PORTD, _PORTD, _PORTD, _PORTD, _PORTD};

static
const uint8_t   col_bit[MATRIX_COLS] = {  _BIT5,  _BIT7,  _BIT6,  _BIT4,  _BIT0,  _BIT6,
				  _BIT0,  _BIT1,  _BIT4,  _BIT5,  _BIT6,  _BIT7,
				  _BIT7,  _BIT6,  _BIT1,  _BIT2,  _BIT3};

static
inline void pull_column(int col) {
  *col_port[col] &= ~col_bit[col];
}

static
inline void release_column(int col) {
  *col_port[col] |=  col_bit[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, col;
  for(row = 0; row < MATRIX_ROWS; row++) {
    *row_ddr[row]  &= ~row_bit[row];
    *row_port[row] |=  row_bit[row];
  }
  for(col = 0; col < MATRIX_COLS; col++) {
    *col_ddr[col]  |= col_bit[col];
    *col_port[col] |= col_bit[col];
  }
}

/* LEDs are on output compare pins OC1B OC1C
   This activates fast PWM mode on them.
   Prescaler 256 and 8-bit counter results in
   16000000/256/256 = 244 Hz blink frequency.
   LED_A: Caps Lock
   LED_B: Scroll Lock  */
/* Output on PWM pins are turned off when the timer 
   reaches the value in the output compare register,
   and are turned on when it reaches TOP (=256). */
static
void setup_leds(void) {
  TCCR1A |=      // Timer control register 1A
    (1<<WGM10) | // Fast PWM 8-bit
    (1<<COM1B1)| // Clear OC1B on match, set at TOP
    (1<<COM1C1); // Clear OC1C on match, set at TOP
  TCCR1B |=      // Timer control register 1B
    (1<<WGM12) | // Fast PWM 8-bit
    (1<<CS12);   // Prescaler 256
  OCR1B = 250;    // Output compare register 1B
  OCR1C = 250;    // Output compare register 1C
  // LEDs: LED_A -> PORTB6, LED_B -> PORTB7
  DDRB  &= 0x3F;
  PORTB &= 0x3F;
}


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) {
        matrix_row_t *tmp = matrix_debounced;
        matrix_debounced = matrix;
        matrix = tmp;
    }

    for (uint8_t col = 0; col < MATRIX_COLS; col++) {  // 0-16
        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++) {  // 0-5
            bool prev_bit = matrix[row] & ((matrix_row_t)1<<col);
            bool curr_bit = !(*row_pin[row] & row_bit[row]);
            if (prev_bit != curr_bit) {
                matrix[row] ^= ((matrix_row_t)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] & ((matrix_row_t)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;
}