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New branch for LR96

lr94
Kai Ryu 10 years ago
parent
0b5b76d8a7
commit
2546eacdd5
8 changed files with 786 additions and 0 deletions
Split View Show Diff Stats
  1. 150
    0
      keyboard/lr96/Makefile
  2. 118
    0
      keyboard/lr96/Makefile.pjrc
  3. 52
    0
      keyboard/lr96/backlight.c
  4. 78
    0
      keyboard/lr96/config.h
  5. 49
    0
      keyboard/lr96/keymap_common.c
  6. 92
    0
      keyboard/lr96/keymap_common.h
  7. 34
    0
      keyboard/lr96/led.c
  8. 213
    0
      keyboard/lr96/matrix.c

+ 150
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keyboard/lr96/Makefile 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 = lr96_lufa

# Directory common source filess exist
TOP_DIR = ../..

# Directory keyboard dependent files exist
TARGET_DIR = .

# project specific files
SRC = keymap_common.c \
matrix.c \
led.c \
backlight.c

ifdef KEYMAP
SRC := keymap_$(KEYMAP).c $(SRC)
else
SRC := keymap_poker.c $(SRC)
endif


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)

# Interrupt driven control endpoint task(+60)
OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT


# Boot Section Size in *bytes*
# Teensy halfKay 512
# Teensy++ halfKay 1024
# Atmel DFU loader 4096
# LUFA bootloader 4096
# USBaspLoader 2048
OPT_DEFS += -DBOOTLOADER_SIZE=4096

# PCB Revision
ifdef REV
OPT_DEFS += -DGH60_REV_$(REV)
endif

# Additional definitions from command line
ifdef DEFS
OPT_DEFS += $(foreach DEF,$(DEFS),-D$(DEF))
endif

# Build Options
# comment out to disable the options.
#
BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration(+1000)
MOUSEKEY_ENABLE = yes # Mouse keys(+4700)
EXTRAKEY_ENABLE = yes # Audio control and System control(+450)
CONSOLE_ENABLE = yes # Console for debug(+400)
COMMAND_ENABLE = yes # Commands for debug and configuration
#SLEEP_LED_ENABLE = yes # Breathing sleep LED during USB suspend
NKRO_ENABLE = yes # USB Nkey Rollover - not yet supported in LUFA
#PS2_MOUSE_ENABLE = yes # PS/2 mouse(TrackPoint) support
BACKLIGHT_ENABLE = yes # Enable keyboard backlight functionality
KEYMAP_EX_ENABLE = yes # External keymap in eeprom
KEYMAP_SECTION_ENABLE = yes # Fixed address keymap for keymap editor


# Optimize size but this may cause error "relocation truncated to fit"
#EXTRALDFLAGS = -Wl,--relax

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

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

+ 118
- 0
keyboard/lr96/Makefile.pjrc View File

@@ -0,0 +1,118 @@
#----------------------------------------------------------------------------
# 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 = lr96_pjrc

# Directory common source filess exist
TOP_DIR = ../..

# Directory keyboard dependent files exist
TARGET_DIR = .

# project specific files
SRC = keymap_common.c \
matrix.c \
led.c \
backlight.c

ifdef KEYMAP
SRC := keymap_$(KEYMAP).c $(SRC)
else
SRC := keymap_poker.c $(SRC)
endif

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 = atmega32u4
#MCU = at90usb1286


# 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


# Boot Section Size in *bytes*
# Teensy halfKay 512
# Atmel DFU loader 4096
# LUFA bootloader 4096
OPT_DEFS += -DBOOTLOADER_SIZE=4096

# PCB Revision
ifdef REV
OPT_DEFS += -DGH60_REV_$(REV)
endif

# Additional definitions from command line
ifdef DEFS
OPT_DEFS += $(foreach DEF,$(DEFS),-D$(DEF))
endif

# Build Options
# comment out to disable the options.
#
BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration(+1000)
MOUSEKEY_ENABLE = yes # Mouse keys(+4700)
EXTRAKEY_ENABLE = yes # Audio control and System control(+450)
CONSOLE_ENABLE = yes # Console for debug(+400)
COMMAND_ENABLE = yes # Commands for debug and configuration
#SLEEP_LED_ENABLE = yes # Breathing sleep LED during USB suspend
NKRO_ENABLE = yes # USB Nkey Rollover - not yet supported in LUFA
#PS2_MOUSE_ENABLE = yes # PS/2 mouse(TrackPoint) support
BACKLIGHT_ENABLE = yes # Enable keyboard backlight functionality
KEYMAP_EX_ENABLE = yes # External keymap in eeprom
KEYMAP_SECTION_ENABLE = yes # Fixed address keymap for keymap editor



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

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

+ 52
- 0
keyboard/lr96/backlight.c View File

@@ -0,0 +1,52 @@
/*
Copyright 2014 Kai Ryu <[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 <avr/interrupt.h>
#include <avr/pgmspace.h>
#include "backlight.h"

static const uint8_t backlight_table[] PROGMEM = {
0, 16, 128, 255
};

/* Backlight pin configuration
* PWM: PC6(OC3A)
*/
void backlight_set(uint8_t level)
{
if (level > 0) {
// Turn on PWM
cli();
DDRC |= (1<<PC6);
TCCR3A |= ( (1<<WGM30) | (1<<COM3A1) );
TCCR3B |= ( (1<<CS31) | (1<<CS30) );
sei();
// Set PWM
OCR3A = pgm_read_byte(&backlight_table[level]);
}
else {
// Turn off PWM
cli();
DDRC &= ~(1<<PC6);
TCCR3A &= ~( (1<<WGM30) | (1<<COM3A1) );
TCCR3B &= ~( (1<<CS31) | (1<<CS30) );
sei();
// Set PWM
OCR3A = 0;
}
}

+ 78
- 0
keyboard/lr96/config.h View File

@@ -0,0 +1,78 @@
/*
Copyright 2014 Kai Ryu <[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 0x4C52
#define PRODUCT_ID 0x9696
#define DEVICE_VER 0x0001
#define MANUFACTURER Lt`y & Romeo.
#define PRODUCT LR96
#define DESCRIPTION t.m.k. keyboard firmware for LR96

/* key matrix size */
#define MATRIX_ROWS 7
#define MATRIX_COLS 16

/* keymap in eeprom */
#define FN_ACTIONS_COUNT 32
#define KEYMAPS_COUNT 8

/* define if matrix has ghost */
//#define MATRIX_HAS_GHOST

/* Set 0 if debouncing isn't needed */
#define DEBOUNCE 5

/* number of backlight levels */
#define BACKLIGHT_LEVELS 3

/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
#define LOCKING_SUPPORT_ENABLE

/* Locking resynchronize hack */
#define LOCKING_RESYNC_ENABLE

/* key combination for command */
#define IS_COMMAND() ( \
keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
)



/*
* Feature disable options
* These options are also useful to firmware size reduction.
*/

/* disable debug print */
//#define NO_DEBUG

/* disable print */
//#define NO_PRINT

/* disable action features */
//#define NO_ACTION_LAYER
//#define NO_ACTION_TAPPING
//#define NO_ACTION_ONESHOT
//#define NO_ACTION_MACRO
//#define NO_ACTION_FUNCTION

#endif

+ 49
- 0
keyboard/lr96/keymap_common.c View File

@@ -0,0 +1,49 @@
/*
Copyright 2012,2013 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 "keymap_common.h"

/* translates key to keycode */
uint8_t keymap_key_to_keycode(uint8_t layer, key_t key)
{
#ifndef KEYMAP_EX_ENABLE
return pgm_read_byte(&keymaps[(layer)][(key.row)][(key.col)]);
#else
return eeconfig_read_keymap_key(layer, key.row, key.col);
#endif
}

/* translates Fn keycode to action */
action_t keymap_fn_to_action(uint8_t keycode)
{
return (action_t) {
#ifndef KEYMAP_EX_ENABLE
.code = pgm_read_word(&fn_actions[FN_INDEX(keycode)])
#else
.code = eeconfig_read_keymap_fn_action(FN_INDEX(keycode))
#endif
};
}

#ifdef KEYMAP_EX_ENABLE
const uint8_t* keymaps_pointer(void) {
return (const uint8_t*)keymaps;
}

const uint16_t* fn_actions_pointer(void) {
return fn_actions;
}
#endif

+ 92
- 0
keyboard/lr96/keymap_common.h View File

@@ -0,0 +1,92 @@
/*
Copyright 2012,2013 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 KEYMAP_COMMON_H
#define KEYMAP_COMMON_H

#include <stdint.h>
#include <stdbool.h>
#include <avr/pgmspace.h>
#include "keycode.h"
#include "action.h"
#include "action_macro.h"
#include "report.h"
#include "host.h"
#include "print.h"
#include "debug.h"
#include "keymap.h"
#include "keymap_ex.h"


/*
#ifdef KEYMAP_EX_ENABLE
extern const uint8_t keymaps[KEYMAPS_COUNT][MATRIX_ROWS][MATRIX_COLS];
extern const uint16_t fn_actions[FN_ACTIONS_COUNT];
#else
*/
extern const uint8_t keymaps[][MATRIX_ROWS][MATRIX_COLS];
extern const uint16_t fn_actions[];
//#endif


/* LR96 keymap definition macro
* K2C, K31 and K3C are extra keys for ISO
*/
#define KEYMAP( \
K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, \
K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D, \
K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, K2C, K2D, \
K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3C, K3D, \
K40, K41, K42, K45, K49, K4A, K4B, K4C, K4D \
) { \
{ KC_##K00, KC_##K01, KC_##K02, KC_##K03, KC_##K04, KC_##K05, KC_##K06, KC_##K07, KC_##K08, KC_##K09, KC_##K0A, KC_##K0B, KC_##K0C, KC_##K0D }, \
{ KC_##K10, KC_##K11, KC_##K12, KC_##K13, KC_##K14, KC_##K15, KC_##K16, KC_##K17, KC_##K18, KC_##K19, KC_##K1A, KC_##K1B, KC_##K1C, KC_##K1D }, \
{ KC_##K20, KC_##K21, KC_##K22, KC_##K23, KC_##K24, KC_##K25, KC_##K26, KC_##K27, KC_##K28, KC_##K29, KC_##K2A, KC_##K2B, KC_##K2C, KC_##K2D }, \
{ KC_##K30, KC_##K31, KC_##K32, KC_##K33, KC_##K34, KC_##K35, KC_##K36, KC_##K37, KC_##K38, KC_##K39, KC_##K3A, KC_##K3B, KC_##K3C, KC_##K3D }, \
{ KC_##K40, KC_##K41, KC_##K42, KC_NO, KC_NO, KC_##K45, KC_NO, KC_NO, KC_NO, KC_##K49, KC_##K4A, KC_##K4B, KC_##K4C, KC_##K4D } \
}

/* ANSI valiant. No extra keys for ISO */
#define KEYMAP_ANSI( \
K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, \
K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D, \
K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, K2D, \
K30, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3D, \
K40, K41, K42, K45, K4A, K4B, K4C, K4D \
) KEYMAP( \
K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, \
K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D, \
K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, NO, K2D, \
K30, NO, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, NO, K3D, \
K40, K41, K42, K45, NO, K4A, K4B, K4C, K4D \
)


#define KEYMAP_HHKB( \
K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, K49,\
K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D, \
K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, K2D, \
K30, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3D, K3C, \
K40, K41, K42, K45, K4A, K4B, K4C, K4D \
) KEYMAP( \
K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, \
K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D, \
K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, NO, K2D, \
K30, NO, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3C, K3D, \
K40, K41, K42, K45, K49, K4A, K4B, K4C, K4D \
)

#endif

+ 34
- 0
keyboard/lr96/led.c View File

@@ -0,0 +1,34 @@
/*
Copyright 2014 Kai Ryu <[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)) {
// output low
DDRB |= (1<<PB2);
PORTB &= ~(1<<PB2);
} else {
// Hi-Z
DDRB &= ~(1<<PB2);
PORTB &= ~(1<<PB2);
}
}

+ 213
- 0
keyboard/lr96/matrix.c View File

@@ -0,0 +1,213 @@
/*
Copyright 2014 Kai Ryu <[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/>.
*/

/*
* scan matrix
*/
#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;
typedef uint8_t matrix_col_t;

/* matrix state(1:on, 0:off) */
static matrix_col_t matrix[MATRIX_COLS];
static matrix_col_t matrix_debouncing[MATRIX_COLS];

static matrix_col_t read_rows(void);
static void init_rows(void);
static void unselect_cols(void);
static void select_col(uint8_t col);


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
unselect_cols();
init_rows();

// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) {
matrix[i] = 0;
matrix_debouncing[i] = 0;
}
}

uint8_t matrix_scan(void)
{
for (uint8_t i = 0; i < MATRIX_COLS; i++) {
select_col(i);
_delay_us(30); // without this wait read unstable value.
matrix_col_t rows = read_rows();
if (matrix_debouncing[i] != rows) {
matrix_debouncing[i] = rows;
if (debouncing) {
debug("bounce!: "); debug_hex(debouncing); debug("\n");
}
debouncing = DEBOUNCE;
}
unselect_cols();
}

if (debouncing) {
if (--debouncing) {
_delay_ms(1);
} else {
for (uint8_t i = 0; i < MATRIX_COLS; i++) {
matrix[i] = matrix_debouncing[i];
}
}
}

return 1;
}

bool matrix_is_modified(void)
{
if (debouncing) return false;
return true;
}

inline
bool matrix_is_on(uint8_t row, uint8_t col)
{
return (matrix[col] & ((matrix_col_t)1<<row));
}

inline
matrix_col_t matrix_get_col(uint8_t col)
{
return matrix[col];
}

void matrix_print(void)
{
print("\nc/r 0123456789ABCDEF\n");
for (uint8_t col = 0; row < MATRIX_COLS; col++) {
phex(col); print(": ");
pbin_reverse16(matrix_get_col(col));
print("\n");
}
}

uint8_t matrix_key_count(void)
{
uint8_t count = 0;
for (uint8_t i = 0; i < MATRIX_COLS; i++) {
count += bitpop16(matrix[i]);
}
return count;
}

/* Row pin configuration
* pin: D0 D1 D2 D3 D4 D5 D6
*/
static void init_rows(void)
{
// Input with pull-up(DDR:0, PORT:1)
DDRD &= ~(1<<PD6 | 1<<PD5 | 1<<PD4 | 1<<PD3 | 1<<PD2 | 1<<PD1 | 1<<PD0);
PORTD |= (1<<PD6 | 1<<PD5 | 1<<PD4 | 1<<PD3 | 1<<PD2 | 1<<PD1 | 1<<PD0);
}

/* Row pin configuration
* col: 0 1 2 3 4 5 6
* pin: D0 D1 D2 D3 D4 D5 D6
*/
static matrix_col_t read_rows(void)
{
return PINF & ~(1<<PF7);
}

/* Column pin configuration
* pin: F0 B4 E6 F1
* col: 0 0 0 0 0
* 1 0 0 0 1
* 2 0 0 1 0
* 3 0 0 1 1
* 4 0 1 0 0
* 5 0 1 0 1
* 6 0 1 1 0
* 7 0 1 1 1
* 8 1 0 0 0
* 9 1 0 0 1
* 10 1 0 1 0
* 11 1 0 1 1
* 12 1 1 0 0
* 13 1 1 0 1
* 14 1 1 1 0
* 15 1 1 1 1
*/
static void unselect_cols(void)
{
// Output low(DDR:1, PORT:0) to unselect
DDRB |= (1<<PB4);
PORTB &= ~(1<<PB4);
DDRE |= (1<<PE6);
PORTE &= ~(1<<PE6);
DDRF |= (1<<PF1 | 1<<PF0);
PORTF &= ~(1<<PF1 | 1<<PF0);
}

static void select_cols(uint8_t col)
{
if (col & (1<<0)) {
PORTF |= (1<<PF1);
}
else {
PORTF &= ~(1<<PF1);
}
if (col & (1<<1)) {
PORTE |= (1<<PE6);
}
else {
PORTE &= ~(1<<PE6);
}
if (col & (1<<2)) {
PORTB |= (1<<PB4);
}
else {
PORTB &= ~(1<<PB4);
}
if (col & (1<<3)) {
PORTF |= (1<<PF0);
}
else {
PORTF &= ~(1<<PF0);
}
}