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Add initial files for hid_libre.

tags/v1.9
tmk 11 years ago
parent
77f157943f
commit
c5057c28b1
6 changed files with 733 additions and 0 deletions
Split View Show Diff Stats
  1. 120
    0
      keyboard/hid_libre/Makefile.lufa
  2. 95
    0
      keyboard/hid_libre/Makefile.pjrc
  3. 56
    0
      keyboard/hid_libre/config.h
  4. 195
    0
      keyboard/hid_libre/keymap.c
  5. 34
    0
      keyboard/hid_libre/led.c
  6. 233
    0
      keyboard/hid_libre/matrix.c

+ 120
- 0
keyboard/hid_libre/Makefile.lufa View File

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#----------------------------------------------------------------------------
# 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 = macway_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
#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

+ 95
- 0
keyboard/hid_libre/Makefile.pjrc View File

@@ -0,0 +1,95 @@
#----------------------------------------------------------------------------
# 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 = macway_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



#---------------- Programming Options --------------------------
PROGRAM_CMD = teensy_loader_cli -mmcu=$(MCU) -w -v $(TARGET).hex



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

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

+ 56
- 0
keyboard/hid_libre/config.h View File

@@ -0,0 +1,56 @@
/*
Copyright 2011 Jun Wako <[email protected]>

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 Leberation


/* 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 5


/* 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

+ 195
- 0
keyboard/hid_libre/keymap.c View File

@@ -0,0 +1,195 @@
/*
Copyright 2011 Jun Wako <[email protected]>

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 Macway mod
*/
#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( \
K11, K10, K20, K30, K40, K41, K51, K50, K60, K70, K80, K81, K61, K02, \
K12, K13, K23, K33, K43, K42, K52, K53, K63, K73, K83, K82, K62, K01, \
K15, K14, K24, K34, K44, K45, K55, K54, K64, K74, K84, K85, K06, \
K67, K16, K26, K36, K46, K47, K57, K56, K66, K76, K87, K32, K35, \
K75, K22, K00, K07, K21, K04, K37, K27, K17 \
) { \
{ KC_##K00, KC_##K01, KC_##K02, KC_NO, KC_##K04, KC_NO, KC_##K06, KC_##K07 }, \
{ KC_##K10, KC_##K11, KC_##K12, KC_##K13, KC_##K14, KC_##K15, KC_##K16, KC_##K17 }, \
{ KC_##K20, KC_##K21, KC_##K22, KC_##K23, KC_##K24, KC_NO, KC_##K26, KC_##K27 }, \
{ KC_##K30, KC_NO, KC_##K32, KC_##K33, KC_##K34, KC_##K35, KC_##K36, KC_##K37 }, \
{ KC_##K40, KC_##K41, KC_##K42, KC_##K43, KC_##K44, KC_##K45, KC_##K46, KC_##K47 }, \
{ KC_##K50, KC_##K51, KC_##K52, KC_##K53, KC_##K54, KC_##K55, KC_##K56, KC_##K57 }, \
{ KC_##K60, KC_##K61, KC_##K62, KC_##K63, KC_##K64, KC_NO, KC_##K66, KC_##K67 }, \
{ KC_##K70, KC_NO, KC_NO, KC_##K73, KC_##K74, KC_##K75, KC_##K76, KC_NO }, \
{ KC_##K80, KC_##K81, KC_##K82, KC_##K83, KC_##K84, KC_##K85, KC_NO, KC_##K87 } \
}

#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
0, // Fn5
3, // Fn6
3 // 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_SLSH, // Fn2
KC_SCLN, // Fn3
KC_SPC, // Fn4
KC_NO, // Fn5
KC_NO, // Fn6
KC_NO // Fn7
};

static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
/* Layer 0: Default Layer
* ,-----------------------------------------------------------.
* |Esc| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =|Backsp |
* |-----------------------------------------------------------|
* |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| |
* |-----------------------------------------------------' |
* |Contro| A| S| D| F| G| H| J| K| L|Fn3| '|Return |
* |-----------------------------------------------------------|
* |Shift | Z| X| C| V| B| N| M| ,| .| /|Shift |Fn1|
* |-----------------------------------------------------------|
* |Fn7|Gui |Alt |Fn4 |Alt |Gui|Fn6|Fn6|Ctr|
* `-----------------------------------------------------------'
*/
KEYMAP(ESC, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, MINS,EQL, BSPC, \
TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC,RBRC,BSLS, \
LCTL,A, S, D, F, G, H, J, K, L, FN3, QUOT,ENT, \
LSFT,Z, X, C, V, B, N, M, COMM,DOT, FN2, RSFT,FN1, \
FN7, LGUI,LALT,FN4, RALT,GRV, FN6, FN6, RCTL),


/* Layer 1: HHKB mode (HHKB Fn)
* ,-----------------------------------------------------------.
* |Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Delete |
* |-----------------------------------------------------------|
* |Caps | | | | | | | |Psc|Slk|Pus|Up | | |
* |-----------------------------------------------------' |
* |Contro|VoD|VoU|Mut| | | *| /|Hom|PgU|Lef|Rig|Enter |
* |-----------------------------------------------------------|
* |Shift | | | | | | +| -|End|PgD|Dow|Shift |xxx|
* |-----------------------------------------------------------|
* | |Gui |Alt | |Alt |Gui| | |Ctr|
* `-----------------------------------------------------------'
*/
KEYMAP(PWR, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, DEL, \
CAPS,NO, NO, NO, NO, NO, NO, NO, PSCR,SLCK,BRK, UP, INS, NLCK,\
LCTL,VOLD,VOLU,MUTE,NO, NO, PAST,PSLS,HOME,PGUP,LEFT,RGHT,ENT, \
LSFT,NO, NO, NO, NO, NO, PPLS,PMNS,END, PGDN,DOWN,RSFT,FN1, \
NO, LGUI,LALT,SPC, RALT,NO, NO, NO, RCTL),


/* Layer 2: Vi mode (Quote/Rmeta)
* ,-----------------------------------------------------------.
* | `| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12| ` |
* |-----------------------------------------------------------|
* | \ |Hom|PgD|Up |PgU|End|Hom|PgD|PgU|End| | | | |
* |-----------------------------------------------------' |
* |Contro| |Lef|Dow|Rig| |Lef|Dow|Up |Rig| | | \ |
* |-----------------------------------------------------------|
* |Shift | | | | | |Hom|PgD|PgU|End|xxx|Shift | |
* |-----------------------------------------------------------|
* | |Gui |Alt |Space |Alt |Gui|Fn6|Fn6|Ctr|
* `-----------------------------------------------------------'
*/
KEYMAP(GRV, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, GRV, \
BSLS,HOME,PGDN,UP, PGUP,END, HOME,PGDN,PGUP,END, NO, NO, NO, NO, \
LCTL,NO, LEFT,DOWN,RGHT,NO, LEFT,DOWN,UP, RGHT,NO, NO, BSLS, \
LSFT,NO, NO, NO, NO, NO, HOME,PGDN,PGUP,END, FN2, RSFT,NO, \
NO, LGUI,LALT,SPC, RALT,RGUI,FN6, FN6, RCTL),


/* Layer 3: Mouse mode (Semicolon)
* ,-----------------------------------------------------------.
* | `| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12| ` |
* |-----------------------------------------------------------|
* | \ |MwL|MwD|McU|MwU|MwR|MwL|MwD|MwU|MwR| | | | |
* |-----------------------------------------------------' |
* |Contro| |McL|McD|McR| |McL|McD|McU|McR|xxx| | \ |
* |-----------------------------------------------------------|
* |Shift | | |Mb1|Mb2|Mb3|Mb2|Mb1| | | |Shift | |
* |-----------------------------------------------------------|
* |xxx|Gui |Alt |Mb1 |Alt | | | | |
* `-----------------------------------------------------------'
* Mc: Mouse Cursor / Mb: Mouse Button / Mw: Mouse Wheel
*/
KEYMAP(GRV, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, GRV, \
BSLS,WH_L,WH_D,MS_U,WH_U,WH_R,WH_L,WH_D,WH_U,WH_R,NO, NO, NO, NO, \
LCTL,NO, MS_L,MS_D,MS_R,NO, MS_L,MS_D,MS_U,MS_R,FN3, NO, BSLS, \
LSFT,NO, NO, BTN1,BTN2,BTN3,BTN2,BTN1,NO, NO, NO, RSFT,NO, \
FN7, LGUI,LALT,BTN1,RALT,NO, FN6, FN6, NO),


/* Layer 4: Matias half keyboard style (Space)
* ,-----------------------------------------------------------.
* |Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9|F10|F11|F12|Delete |
* |-----------------------------------------------------------|
* |Backs| P| O| I| U| Y| T| R| E| W| Q|Tab|Tab| |
* |-----------------------------------------------------' |
* |Contro| ;| L| K| J| H| G| F| D| S| A|Con|Control |
* |-----------------------------------------------------------|
* |Shift | /| .| ,| M| N| B| V| C| X| Z|Shift | |
* |-----------------------------------------------------------|
* | |Gui |Alt |xxxxxxxxxxxxxxxxxxxxxx|Alt |Gui| | |Ctr|
* `-----------------------------------------------------------'
*/
KEYMAP(MINS,0, 9, 8, 7, 6, 5, 4, 3, 2, 1, NO, NO, ESC, \
BSPC,P, O, I, U, Y, T, R, E, W, Q, TAB, TAB, TAB, \
LCTL,SCLN,L, K, J, H, G, F, D, S, A, RCTL,RCTL, \
LSFT,SLSH,DOT, COMM,M, N, B, V, C, X, Z, RSFT,NO, \
NO, LGUI,LALT,FN4, RALT,RGUI,NO, NO, RCTL),
};


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]);
}

+ 34
- 0
keyboard/hid_libre/led.c View File

@@ -0,0 +1,34 @@
/*
Copyright 2011 Jun Wako <[email protected]>

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);
}

+ 233
- 0
keyboard/hid_libre/matrix.c View File

@@ -0,0 +1,233 @@
/*
Copyright 2011 Jun Wako <[email protected]>

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 <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 5
#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 NROW 18
#define NCOL 8
#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[NROW] = { _DDRB, _DDRB,
_DDRC, _DDRC,
_DDRD, _DDRD, _DDRD, _DDRD, _DDRD, _DDRD, _DDRD, _DDRD,
_DDRF, _DDRF, _DDRF, _DDRF, _DDRF, _DDRF};

static
uint8_t *const row_port[NROW] = { _PORTB, _PORTB,
_PORTC, _PORTC,
_PORTD, _PORTD, _PORTD, _PORTD, _PORTD, _PORTD, _PORTD, _PORTD,
_PORTF, _PORTF, _PORTF, _PORTF, _PORTF, _PORTF};

static
uint8_t *const row_pin[NROW] = { _PINB, _PINB,
_PINC, _PINC,
_PIND, _PIND, _PIND, _PIND, _PIND, _PIND, _PIND, _PIND,
_PINF, _PINF, _PINF, _PINF, _PINF, _PINF};

static
const uint8_t row_bit[NROW] = { _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[NCOL] = { 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 < NROW; 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)
{
// 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 < NCOL; col++) { // 0-7
pull_column(col); // output hi on theline
_delay_us(1); // without this wait it won't read stable value.
for (uint8_t row = 0; row < NROW; 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;
}

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