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Merge pull request #102 from xauser/master

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Support for Lightsaber keyboard
This commit is contained in:
tmk 2014-03-24 10:45:46 +09:00
commit 1722e04e73
10 changed files with 793 additions and 0 deletions
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1
README.md
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@ -52,6 +52,7 @@ You can find some keyboard specific projects under `converter` and `keyboard` di
* [IIgs_Standard](keyboard/IIgs/) - Apple [IIGS] keyboard mod(by JeffreySung)
* [macway](keyboard/macway/) - [Compact keyboard mod][GH_macway] [retired]
* [KMAC](keyboard/kmac/) - Korean custom keyboard
* [Lightsaber](keyboard/lightsaber/) - Korean custom keyboard
[GH_macway]: http://geekhack.org/showwiki.php?title=Island:11930
[GH_hhkb]: http://geekhack.org/showwiki.php?title=Island:12047

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keyboard/lightsaber/Makefile.lufa Normal 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 = lightsaber_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 \
backlight.c
CONFIG_H = config.h
# MCU name
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 = 8000000
#
# 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.
#
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
BACKLIGHT_ENABLE = yes # Enable keyboard backlight functionality
# Boot Section Size in bytes
# Teensy halfKay 512
# Atmel DFU loader 4096
# LUFA bootloader 4096
OPT_DEFS += -DBOOTLOADER_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
winkey: OPT_DEFS += -DLAYOUT_WINKEY
winkey: all

94
keyboard/lightsaber/Makefile.pjrc Normal file
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@ -0,0 +1,94 @@
#----------------------------------------------------------------------------
# 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 = lightsaber_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 \
backlight.c
CONFIG_H = config.h
# MCU name
MCU = atmega32u4
# 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 = 8000000
# Build Options
# comment out to disable the options.
#
BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration(+1000)
#MOUSEKEY_ENABLE = yes # Mouse keys(+5000)
EXTRAKEY_ENABLE = yes # Audio control and System control(+600)
CONSOLE_ENABLE = yes # Console for debug
COMMAND_ENABLE = yes # Commands for debug and configuration
#SLEEP_LED_ENABLE = yes # Breathing sleep LED during USB suspend
#NKRO_ENABLE = yes # USB Nkey Rollover(+500)
#PS2_MOUSE_ENABLE = yes # PS/2 mouse(TrackPoint) support
BACKLIGHT_ENABLE = yes # Enable keyboard backlight functionality
# Search Path
VPATH += $(TARGET_DIR)
VPATH += $(TOP_DIR)
include $(TOP_DIR)/protocol/pjrc.mk
include $(TOP_DIR)/common.mk
include $(TOP_DIR)/rules.mk
winkey: OPT_DEFS += -DLAYOUT_WINKEY
winkey: all

26
keyboard/lightsaber/README.md Normal file
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Lightsaber keyboard firmware
======================
Korean custom keyboard designed by Duck.
*Note that this is not the official firmware*
Supported models
----------------
All pcb options are supported.
Build
-----
Move to this directory then just run `make` like:
$ make -f Makefile.[pjrc|lufa]
Use `Makefile.pjrc` if you want to use PJRC stack or use `Makefile.lufa` for LUFA stack.
Bootloader
---------
The PCB is hardwired to run the bootloader if the key at the `one above backspace` position is held down when connecting the keyboard.
It is still possible to use Boot Magic and Command to access the bootloader though.

56
keyboard/lightsaber/backlight.c Normal file
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/*
Copyright 2014 Ralf Schmitt <ralf@bunkertor.net>
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 "backlight.h"
/* Backlight pin configuration
*
* Alphas PB1 (high)
* Numeric PB2 (high)
* Mod+Num PB3 (high)
* Backside PD6 (high)
* TopRight PD7 (low)
* F-Row PE6 (high)
*
*/
void backlight_set(uint8_t level)
{
// Set as output.
DDRB |= (1<<1) | (1<<2) | (1<<3);
DDRD |= (1<<6) | (1<<7);
DDRE |= (1<<6);
if(level & (1<<0))
{
PORTB &= ~(1<<1);
PORTB &= ~(1<<2);
PORTB &= ~(1<<3);
PORTD &= ~(1<<6);
PORTD |= (1<<7);
PORTE &= ~(1<<6);
}
else
{
PORTB |= (1<<1);
PORTB |= (1<<2);
PORTB |= (1<<3);
PORTD |= (1<<6);
PORTD &= ~(1<<7);
PORTE |= (1<<6);
}
}

46
keyboard/lightsaber/config.h Normal file
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/*
Copyright 2013 Mathias Andersson <wraul@dbox.se>
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 0x6050
#define DEVICE_VER 0x0104
#define MANUFACTURER Duck
#define PRODUCT Lightsaber
/* message strings */
#define DESCRIPTION t.m.k. keyboard firmware for Lightsaber
/* matrix size */
#define MATRIX_ROWS 6
#define MATRIX_COLS 18
/* number of backlight levels */
#define BACKLIGHT_LEVELS 1
/* 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)) \
)
#endif

77
keyboard/lightsaber/keymap.c Normal file
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/*
Copyright 2014 Ralf Schmitt <ralf@bunkertor.net>
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 Lightsaber controller
*/
#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 "debug.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, K5B, K5C, K5D, K5E, K5F, K5G, K5H, K5I, K5J, K5K, K5L, K5M, K5N, K5O, K5P, K5Q, K5R, \
K4A, K4B, K4C, K4D, K4E, K4F, K4G, K4H, K4I, K4J, K4K, K4L, K4M, K4N, K4O, K4P, K4Q, K4R, \
K3A, K3B, K3C, K3D, K3E, K3F, K3G, K3H, K3I, K3J, K3K, K3L, K3M, K3N, K3O, K3P, K3Q, K3R, \
K2A, K2B, K2C, K2D, K2E, K2F, K2G, K2H, K2I, K2J, K2K, K2L, K2M, K2N, K2O, K2P, K2Q, K2R, \
K1A, K1C, K1D, K1E, K1F, K1G, K1H, K1I, K1J, K1K, K1L, K1M, K1N, K1O, K1P, K1Q, K1R, \
K0A, K0B, K0C, K0G, K0K, K0L, K0M, K0N, K0O, K0P, K0Q, K0R \
) { \
/* 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 */ \
/* 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, KC_##K5R}, \
/* 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_##K4M, KC_##K4N, KC_##K4O, KC_##K4P, KC_##K4Q, KC_##K4R}, \
/* 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, KC_##K3R}, \
/* 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_##K2M, KC_##K2N, KC_##K2O, KC_##K2P, KC_##K2Q, KC_##K2R}, \
/* 1 */ { KC_##K1A, KC_##K1C, KC_##K1D, KC_##K1E, KC_##K1F, KC_##K1G, KC_##K1H, KC_##K1I, KC_##K1J, KC_##K1K, KC_##K1L, KC_NO, KC_##K1M, KC_##K1N, KC_##K1O, KC_##K1P, KC_##K1Q, KC_##K1R}, \
/* 0 */ { KC_##K0A, KC_##K0B, KC_##K0C, KC_NO, KC_NO, KC_##K0G, KC_NO, KC_NO, KC_##K0K, KC_NO, KC_##K0L, KC_NO, KC_##K0M, KC_##K0N, KC_##K0O, KC_##K0P, KC_##K0Q, KC_##K0R} \
}
#include "keymap_winkey.h"
#define KEYMAPS_SIZE (sizeof(keymaps) / sizeof(keymaps[0]))
#define FN_ACTIONS_SIZE (sizeof(fn_actions) / sizeof(fn_actions[0]))
/* translates key to keycode */
uint8_t keymap_key_to_keycode(uint8_t layer, key_t key)
{
if (layer < KEYMAPS_SIZE) {
return pgm_read_byte(&keymaps[(layer)][(key.row)][(key.col)]);
} else {
// fall back to layer 0
return pgm_read_byte(&keymaps[0][(key.row)][(key.col)]);
}
}
/* translates Fn keycode to action */
action_t keymap_fn_to_action(uint8_t keycode)
{
action_t action;
if (FN_INDEX(keycode) < FN_ACTIONS_SIZE) {
action.code = pgm_read_word(&fn_actions[FN_INDEX(keycode)]);
} else {
action.code = ACTION_NO;
}
return action;
}

21
keyboard/lightsaber/keymap_winkey.h Normal file
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static const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
KEYMAP(\
ESC, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, DEL, INS, PSCR, SLCK, BRK, \
GRV, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, MINS,EQL, BSPC, NUMLOCK,KP_SLASH,KP_ASTERISK,KP_MINUS, \
TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC,RBRC,BSLS, KP_7, KP_8, KP_9, KP_PLUS, \
CAPS,A, S, D, F, G, H, J, K, L, SCLN,QUOT,FN0, ENT, KP_4, KP_5, KP_6, NO, \
LSFT, Z, X, C, V, B, N, M, COMM,DOT, SLSH,NO, RSFT, KP_1, KP_2, KP_3, KP_ENTER, \
LCTL,LGUI,LALT, SPC, NO, RALT,RGUI,RCTL, KP_0, NO, KP_DOT, NO), \
KEYMAP(\
CALC,MYCM,WSCH,WHOM,MAIL,MUTE,VOLD,VOLU,MSEL,MSTP,MPLY,MPRV,MNXT,TRNS, TRNS, WAKE, PWR, SLEP, \
TRNS,TRNS,TRNS,TRNS,END ,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, TRNS, TRNS, TRNS, TRNS, \
TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, TRNS, TRNS, TRNS, TRNS, \
TRNS,TRNS,TRNS,TRNS,PGDN,TRNS,LEFT,DOWN,UP ,RGHT,TRNS,TRNS,TRNS,TRNS, TRNS, TRNS, TRNS, TRNS, \
TRNS, TRNS,TRNS,TRNS,TRNS,PGUP,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS,TRNS, TRNS, TRNS, TRNS, TRNS, \
TRNS,TRNS,TRNS, FN1, TRNS,TRNS,TRNS,TRNS, TRNS, TRNS, TRNS, TRNS)
};
static const uint16_t PROGMEM fn_actions[] = {
[0] = ACTION_LAYER_MOMENTARY(1),
[1] = ACTION_BACKLIGHT_STEP()
};

54
keyboard/lightsaber/led.c Normal file
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/*
Copyright 2014 Ralf Schmitt <ralf@bunkertor.net>
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"
/* LED pin configuration
*
* Caps PB0 (low)
* NumLock PB4 (low)
*
*/
void led_set(uint8_t usb_led)
{
// Set as output.
DDRB |= (1<<0) | (1<<4);
if (usb_led & (1<<USB_LED_CAPS_LOCK))
{
// Output low.
PORTB &= ~(1<<0);
}
else
{
// Output high.
PORTB |= (1<<0);
}
if (usb_led & (1<<USB_LED_NUM_LOCK))
{
// Output low.
PORTB &= ~(1<<4);
}
else
{
// Output high.
PORTB |= (1<<4);
}
}

292
keyboard/lightsaber/matrix.c Normal file
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/*
Copyright 2014 Ralf Schmitt <ralf@bunkertor.net>
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 0
#endif
static uint8_t debouncing = DEBOUNCE;
/* matrix state(1:on, 0:off) */
static matrix_row_t matrix[MATRIX_ROWS];
static matrix_row_t matrix_debouncing[MATRIX_ROWS];
static uint8_t read_rows(void);
static uint8_t read_fwkey(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)
{
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 col = 0; col < MATRIX_COLS; col++) { // 0-17
select_col(col);
_delay_us(3); // TODO: Determine the correct value needed here.
uint8_t rows = read_rows();
// Use the otherwise unused col: 12 row: 3 for firmware.
if(col == 12) {
rows |= read_fwkey();
}
for (uint8_t row = 0; row < MATRIX_ROWS; row++) { // 0-5
bool prev_bit = matrix_debouncing[row] & ((matrix_row_t)1<<col);
bool curr_bit = rows & (1<<row);
if (prev_bit != curr_bit) {
matrix_debouncing[row] ^= ((matrix_row_t)1<<col);
if (debouncing) {
dprint("bounce!: "); dprintf("%02X", debouncing); dprintln();
}
debouncing = DEBOUNCE;
}
}
unselect_cols();
}
if (debouncing) {
if (--debouncing) {
_delay_ms(1);
} else {
for (uint8_t i = 0; i < MATRIX_ROWS; 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[row] & ((matrix_row_t)1<<col));
}
inline
matrix_row_t matrix_get_row(uint8_t row)
{
return matrix[row];
}
void matrix_print(void)
{
print("\nr/c 0123456789ABCDEF\n");
for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
xprintf("%02X: %032lb\n", row, bitrev32(matrix_get_row(row)));
}
}
uint8_t matrix_key_count(void)
{
uint8_t count = 0;
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
count += bitpop32(matrix[i]);
}
return count;
}
/* Row pin configuration
* row: 0 1 2 3 4 5
* pin: PD0 PD1 PD2 PD3 PD5 PB7
*
* Firmware uses its own pin PE2
*/
static void init_rows(void)
{
// Input (DDR:0, PORT:0)
DDRD &= ~0b00101111;
PORTD &= ~0b00101111;
DDRB &= ~(1<<7);
PORTB &= ~(1<<7);
// Input with pull-up (DDR:0, PORT:1)
DDRE &= ~(1<<2);
PORTE |= (1<<2);
}
static uint8_t read_rows(void)
{
return (PIND&(1<<0) ? (1<<0) : 0) |
(PIND&(1<<1) ? (1<<1) : 0) |
(PIND&(1<<2) ? (1<<2) : 0) |
(PIND&(1<<3) ? (1<<3) : 0) |
(PIND&(1<<5) ? (1<<4) : 0) |
(PINB&(1<<7) ? (1<<5) : 0);
}
static uint8_t read_fwkey(void)
{
return PINE&(1<<2) ? 0 : (1<<3);
}
/* Columns 0 - 15
* These columns uses two 74HC237D 3 to 8 bit demultiplexers.
* col / pin: PC6 PB6 PF0 PF1 PC7
* 0: 1 0 0 0 0
* 1: 1 0 1 0 0
* 2: 1 0 0 1 0
* 3: 1 0 1 1 0
* 4: 1 0 0 0 1
* 5: 1 0 1 0 1
* 6: 1 0 0 1 1
* 7: 1 0 1 1 1
* 8: 0 1 0 0 0
* 9: 0 1 1 0 0
* 10: 0 1 0 1 0
* 11: 0 1 1 1 0
* 12: 0 1 0 0 1
* 13: 0 1 1 0 1
* 14: 0 1 0 1 1
* 15: 0 1 1 1 1
*
* col: 16
* pin: PB5
*
* col: 17
* pin: PD4
*/
static void unselect_cols(void)
{
DDRB |= (1<<5) | (1<<6);
PORTB &= ~((1<<5) | (1<<6));
DDRC |= (1<<6) | (1<<7);
PORTC &= ~((1<<6) | (1<<7));
DDRD |= (1<<4);
PORTD &= ~(1<<4);
DDRF |= (1<<0) | (1<<1);
PORTF &= ~((1<<0) | (1<<1));
}
static void select_col(uint8_t col)
{
// Output high (DDR:1, PORT:1) to select
switch (col) {
case 0:
PORTC |= (1<<6);
break;
case 1:
PORTC |= (1<<6);
PORTF |= (1<<0);
break;
case 2:
PORTC |= (1<<6);
PORTF |= (1<<1);
break;
case 3:
PORTC |= (1<<6);
PORTF |= (1<<0) | (1<<1);
break;
case 4:
PORTC |= (1<<6);
PORTC |= (1<<7);
break;
case 5:
PORTC |= (1<<6);
PORTF |= (1<<0);
PORTC |= (1<<7);
break;
case 6:
PORTC |= (1<<6);
PORTF |= (1<<1);
PORTC |= (1<<7);
break;
case 7:
PORTC |= (1<<6);
PORTF |= (1<<0) | (1<<1);
PORTC |= (1<<7);
break;
case 8:
PORTB |= (1<<6);
break;
case 9:
PORTB |= (1<<6);
PORTF |= (1<<0);
break;
case 10:
PORTB |= (1<<6);
PORTF |= (1<<1);
break;
case 11:
PORTB |= (1<<6);
PORTF |= (1<<0) | (1<<1);
break;
case 12:
PORTB |= (1<<6);
PORTC |= (1<<7);
break;
case 13:
PORTB |= (1<<6);
PORTF |= (1<<0);
PORTC |= (1<<7);
break;
case 14:
PORTB |= (1<<6);
PORTF |= (1<<1);
PORTC |= (1<<7);
break;
case 15:
PORTB |= (1<<6);
PORTF |= (1<<0) | (1<<1);
PORTC |= (1<<7);
break;
case 16:
PORTB |= (1<<5);
break;
case 17:
PORTD |= (1<<4);
break;
}
}