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Moved files to common, protocol and doc directory

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tmk 2012-06-07 02:25:15 +09:00
parent 225de7a847
commit f412570739
98 changed files with 0 additions and 210 deletions
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22
common/bootloader.c Normal file
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/*
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/>.
*/
#include "bootloader.h"
void bootloader_jump(void) __attribute__ ((weak));
void bootloader_jump(void) {}

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/*
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/>.
*/
#ifndef BOOTLOADER_H
#define BOOTLOADER_H
/* give code for your bootloader to come up if needed */
void bootloader_jump(void);
#endif

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/*
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/>.
*/
#include <stdint.h>
#include <stdbool.h>
#include <util/delay.h>
#include "usb_keycodes.h"
#include "host.h"
#include "print.h"
#include "debug.h"
#include "util.h"
#include "timer.h"
#include "layer.h"
#include "matrix.h"
#include "bootloader.h"
#include "command.h"
#ifdef HOST_PJRC
# include "usb_keyboard.h"
# ifdef EXTRAKEY_ENABLE
# include "usb_extra.h"
# endif
#endif
#ifdef HOST_VUSB
# include "usbdrv.h"
#endif
static uint8_t command_common(void);
static void help(void);
static void switch_layer(uint8_t layer);
static bool last_print_enable;
uint8_t command_proc(void)
{
uint8_t processed = 0;
last_print_enable = print_enable;
if (!IS_COMMAND())
return 0;
print_enable = true;
if (command_extra() || command_common()) {
processed = 1;
_delay_ms(500);
}
print_enable = last_print_enable;
return processed;
}
/* This allows to define extra commands. return 0 when not processed. */
uint8_t command_extra(void) __attribute__ ((weak));
uint8_t command_extra(void)
{
return 0;
}
static uint8_t command_common(void)
{
switch (host_get_first_key()) {
case KB_H:
help();
break;
case KB_B:
host_clear_keyboard_report();
host_send_keyboard_report();
print("jump to bootloader... ");
_delay_ms(1000);
bootloader_jump(); // not return
print("not supported.\n");
break;
case KB_D:
debug_enable = !debug_enable;
if (debug_enable) {
last_print_enable = true;
print("debug enabled.\n");
debug_matrix = true;
debug_keyboard = true;
debug_mouse = true;
} else {
print("debug disabled.\n");
last_print_enable = false;
debug_matrix = false;
debug_keyboard = false;
debug_mouse = false;
}
break;
case KB_X: // debug matrix toggle
debug_matrix = !debug_matrix;
if (debug_matrix)
print("debug matrix enabled.\n");
else
print("debug matrix disabled.\n");
break;
case KB_K: // debug keyboard toggle
debug_keyboard = !debug_keyboard;
if (debug_keyboard)
print("debug keyboard enabled.\n");
else
print("debug keyboard disabled.\n");
break;
case KB_M: // debug mouse toggle
debug_mouse = !debug_mouse;
if (debug_mouse)
print("debug mouse enabled.\n");
else
print("debug mouse disabled.\n");
break;
case KB_V: // print version & information
print(STR(DESCRIPTION) "\n");
break;
case KB_T: // print timer
print("timer: "); phex16(timer_count); print("\n");
break;
case KB_P: // print toggle
if (last_print_enable) {
print("print disabled.\n");
last_print_enable = false;
} else {
last_print_enable = true;
print("print enabled.\n");
}
break;
case KB_S:
#ifdef HOST_PJRC
print("UDCON: "); phex(UDCON); print("\n");
print("UDIEN: "); phex(UDIEN); print("\n");
print("UDINT: "); phex(UDINT); print("\n");
print("usb_keyboard_leds:"); phex(usb_keyboard_leds); print("\n");
print("usb_keyboard_protocol: "); phex(usb_keyboard_protocol); print("\n");
print("usb_keyboard_idle_config:"); phex(usb_keyboard_idle_config); print("\n");
print("usb_keyboard_idle_count:"); phex(usb_keyboard_idle_count); print("\n");
#endif
#ifdef HOST_VUSB
# if USB_COUNT_SOF
print("usbSofCount: "); phex(usbSofCount); print("\n");
# endif
#endif
break;
#ifdef NKRO_ENABLE
case KB_N:
// send empty report before change
host_clear_keyboard_report();
host_send_keyboard_report();
keyboard_nkro = !keyboard_nkro;
if (keyboard_nkro)
print("NKRO: enabled\n");
else
print("NKRO: disabled\n");
break;
#endif
#ifdef EXTRAKEY_ENABLE
case KB_ESC:
host_clear_keyboard_report();
host_send_keyboard_report();
#ifdef HOST_PJRC
if (suspend && remote_wakeup) {
usb_remote_wakeup();
} else {
host_system_send(SYSTEM_POWER_DOWN);
host_system_send(0);
_delay_ms(500);
}
#else
host_system_send(SYSTEM_POWER_DOWN);
host_system_send(0);
_delay_ms(500);
#endif
break;
#endif
case KB_BSPC:
matrix_init();
print("clear matrix\n");
break;
case KB_0:
switch_layer(0);
break;
case KB_1:
switch_layer(1);
break;
case KB_2:
switch_layer(2);
break;
case KB_3:
switch_layer(3);
break;
case KB_4:
switch_layer(4);
break;
default:
return 0;
}
return 1;
}
static void help(void)
{
print("b: jump to bootloader\n");
print("d: toggle debug enable\n");
print("x: toggle matrix debug\n");
print("k: toggle keyboard debug\n");
print("m: toggle mouse debug\n");
print("p: toggle print enable\n");
print("v: print version\n");
print("t: print timer count\n");
print("s: print status\n");
#ifdef NKRO_ENABLE
print("n: toggle NKRO\n");
#endif
print("Backspace: clear matrix\n");
print("ESC: power down/wake up\n");
print("0: switch to Layer0 \n");
print("1: switch to Layer1 \n");
print("2: switch to Layer2 \n");
print("3: switch to Layer3 \n");
print("4: switch to Layer4 \n");
}
static void switch_layer(uint8_t layer)
{
print("current_layer: "); phex(current_layer); print("\n");
print("default_layer: "); phex(default_layer); print("\n");
current_layer = layer;
default_layer = layer;
print("switch to Layer: "); phex(layer); print("\n");
}

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/*
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/>.
*/
#ifndef COMMAND_H
#define COMMAND
uint8_t command_proc(void);
/* This allows to extend commands. Return 0 when command is not processed. */
uint8_t command_extra(void);
#endif

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/*
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/>.
*/
#ifndef TEENSY_H
#define TEENSY_H 1
// for Teensy/Teensy++ 2.0
#define DEBUG_LED 1
#define DEBUG_LED_CONFIG (DDRD |= (1<<6))
#define DEBUG_LED_ON (PORTD |= (1<<6))
#define DEBUG_LED_OFF (PORTD &= ~(1<<6))
#endif

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/*
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/>.
*/
#ifndef DEBUG_H
#define DEBUG_H 1
#include "print.h"
#define debug(s) if(debug_enable) print(s)
#define debug_hex(c) if(debug_enable) phex(c)
#define debug_hex16(i) if(debug_enable) phex16(i)
#define debug_bin(c) if(debug_enable) pbin(c)
#define debug_bin_reverse(c) if(debug_enable) pbin_reverse(c)
bool debug_enable;
bool debug_matrix;
bool debug_keyboard;
bool debug_mouse;
#endif

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/*
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/>.
*/
#include <stdint.h>
#include <avr/interrupt.h>
#include "usb_keycodes.h"
#include "host.h"
#include "util.h"
#include "debug.h"
#ifdef NKRO_ENABLE
bool keyboard_nkro = false;
#endif
static host_driver_t *driver;
static report_keyboard_t report0;
static report_keyboard_t report1;
report_keyboard_t *keyboard_report = &report0;
report_keyboard_t *keyboard_report_prev = &report1;
static inline void add_key_byte(uint8_t code);
static inline void del_key_byte(uint8_t code);
static inline void add_key_bit(uint8_t code);
static inline void del_key_bit(uint8_t code);
void host_set_driver(host_driver_t *d)
{
driver = d;
}
host_driver_t *host_get_driver(void)
{
return driver;
}
uint8_t host_keyboard_leds(void)
{
if (!driver) return 0;
return (*driver->keyboard_leds)();
}
/* keyboard report operations */
void host_add_key(uint8_t key)
{
#ifdef NKRO_ENABLE
if (keyboard_nkro) {
add_key_bit(key);
return;
}
#endif
add_key_byte(key);
}
void host_del_key(uint8_t key)
{
#ifdef NKRO_ENABLE
if (keyboard_nkro) {
del_key_bit(key);
return;
}
#endif
del_key_byte(key);
}
void host_add_mod_bit(uint8_t mod)
{
keyboard_report->mods |= mod;
}
void host_del_mod_bit(uint8_t mod)
{
keyboard_report->mods &= ~mod;
}
void host_set_mods(uint8_t mods)
{
keyboard_report->mods = mods;
}
void host_add_code(uint8_t code)
{
if (IS_MOD(code)) {
host_add_mod_bit(MOD_BIT(code));
} else {
host_add_key(code);
}
}
void host_del_code(uint8_t code)
{
if (IS_MOD(code)) {
host_del_mod_bit(MOD_BIT(code));
} else {
host_del_key(code);
}
}
void host_swap_keyboard_report(void)
{
uint8_t sreg = SREG;
cli();
report_keyboard_t *tmp = keyboard_report_prev;
keyboard_report_prev = keyboard_report;
keyboard_report = tmp;
SREG = sreg;
}
void host_clear_keyboard_report(void)
{
keyboard_report->mods = 0;
for (int8_t i = 0; i < REPORT_KEYS; i++) {
keyboard_report->keys[i] = 0;
}
}
uint8_t host_has_anykey(void)
{
uint8_t cnt = 0;
for (int i = 0; i < REPORT_KEYS; i++) {
if (keyboard_report->keys[i])
cnt++;
}
return cnt;
}
uint8_t host_get_first_key(void)
{
#ifdef NKRO_ENABLE
if (keyboard_nkro) {
uint8_t i = 0;
for (; i < REPORT_KEYS && !keyboard_report->keys[i]; i++)
;
return i<<3 | biton(keyboard_report->keys[i]);
}
#endif
return keyboard_report->keys[0];
}
void host_send_keyboard_report(void)
{
if (!driver) return;
(*driver->send_keyboard)(keyboard_report);
}
void host_mouse_send(report_mouse_t *report)
{
if (!driver) return;
(*driver->send_mouse)(report);
}
void host_system_send(uint16_t data)
{
if (!driver) return;
(*driver->send_system)(data);
}
void host_consumer_send(uint16_t data)
{
// TODO: this is needed?
static uint16_t last_data = 0;
if (data == last_data) return;
last_data = data;
if (!driver) return;
(*driver->send_consumer)(data);
}
static inline void add_key_byte(uint8_t code)
{
// TODO: fix ugly code
int8_t i = 0;
int8_t empty = -1;
for (; i < REPORT_KEYS; i++) {
if (keyboard_report_prev->keys[i] == code) {
keyboard_report->keys[i] = code;
break;
}
if (empty == -1 &&
keyboard_report_prev->keys[i] == 0 &&
keyboard_report->keys[i] == 0) {
empty = i;
}
}
if (i == REPORT_KEYS) {
if (empty != -1) {
keyboard_report->keys[empty] = code;
}
}
}
static inline void del_key_byte(uint8_t code)
{
int i = 0;
for (; i < REPORT_KEYS; i++) {
if (keyboard_report->keys[i] == code) {
keyboard_report->keys[i] = 0;
break;
}
}
}
static inline void add_key_bit(uint8_t code)
{
if ((code>>3) < REPORT_KEYS) {
keyboard_report->keys[code>>3] |= 1<<(code&7);
} else {
debug("add_key_bit: can't add: "); phex(code); debug("\n");
}
}
static inline void del_key_bit(uint8_t code)
{
if ((code>>3) < REPORT_KEYS) {
keyboard_report->keys[code>>3] &= ~(1<<(code&7));
} else {
debug("del_key_bit: can't del: "); phex(code); debug("\n");
}
}

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/*
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/>.
*/
#ifndef HOST_H
#define HOST_H
#include <stdint.h>
#include "report.h"
#include "host_driver.h"
#ifdef NKRO_ENABLE
extern bool keyboard_nkro;
#endif
extern report_keyboard_t *keyboard_report;
extern report_keyboard_t *keyboard_report_prev;
void host_set_driver(host_driver_t *driver);
host_driver_t *host_get_driver(void);
uint8_t host_keyboard_leds(void);
/* keyboard report operations */
void host_add_key(uint8_t key);
void host_del_key(uint8_t key);
void host_add_mod_bit(uint8_t mod);
void host_del_mod_bit(uint8_t mod);
void host_set_mods(uint8_t mods);
void host_add_code(uint8_t code);
void host_del_code(uint8_t code);
void host_swap_keyboard_report(void);
void host_clear_keyboard_report(void);
uint8_t host_has_anykey(void);
uint8_t host_get_first_key(void);
void host_send_keyboard_report(void);
void host_mouse_send(report_mouse_t *report);
void host_system_send(uint16_t data);
void host_consumer_send(uint16_t data);
#endif

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/*
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/>.
*/
#ifndef HOST_DRIVER_H
#define HOST_DRIVER_H
#include <stdint.h>
#include "report.h"
typedef struct {
uint8_t (*keyboard_leds)(void);
void (*send_keyboard)(report_keyboard_t *);
void (*send_mouse)(report_mouse_t *);
void (*send_system)(uint16_t);
void (*send_consumer)(uint16_t);
} host_driver_t;
#endif

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/*
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/>.
*/
#include "keyboard.h"
#include "host.h"
#include "layer.h"
#include "matrix.h"
#include "led.h"
#include "usb_keycodes.h"
#include "timer.h"
#include "print.h"
#include "debug.h"
#include "command.h"
#ifdef MOUSEKEY_ENABLE
#include "mousekey.h"
#endif
#ifdef EXTRAKEY_ENABLE
#include <util/delay.h>
#endif
static uint8_t last_leds = 0;
void keyboard_init(void)
{
timer_init();
matrix_init();
#ifdef PS2_MOUSE_ENABLE
ps2_mouse_init();
#endif
}
void keyboard_proc(void)
{
uint8_t fn_bits = 0;
#ifdef EXTRAKEY_ENABLE
uint16_t consumer_code = 0;
#endif
matrix_scan();
if (matrix_is_modified()) {
if (debug_matrix) matrix_print();
#ifdef DEBUG_LED
// LED flash for debug
DEBUG_LED_CONFIG;
DEBUG_LED_ON;
#endif
}
if (matrix_has_ghost()) {
// should send error?
debug("matrix has ghost!!\n");
return;
}
host_swap_keyboard_report();
host_clear_keyboard_report();
for (int row = 0; row < matrix_rows(); row++) {
for (int col = 0; col < matrix_cols(); col++) {
if (!matrix_is_on(row, col)) continue;
uint8_t code = layer_get_keycode(row, col);
if (code == KB_NO) {
// do nothing
} else if (IS_MOD(code)) {
host_add_mod_bit(MOD_BIT(code));
} else if (IS_FN(code)) {
fn_bits |= FN_BIT(code);
}
// TODO: use table or something
#ifdef EXTRAKEY_ENABLE
// System Control
else if (code == KB_SYSTEM_POWER) {
#ifdef HOST_PJRC
if (suspend && remote_wakeup) {
usb_remote_wakeup();
} else {
host_system_send(SYSTEM_POWER_DOWN);
}
#else
host_system_send(SYSTEM_POWER_DOWN);
#endif
host_system_send(0);
_delay_ms(500);
} else if (code == KB_SYSTEM_SLEEP) {
host_system_send(SYSTEM_SLEEP);
host_system_send(0);
_delay_ms(500);
} else if (code == KB_SYSTEM_WAKE) {
host_system_send(SYSTEM_WAKE_UP);
host_system_send(0);
_delay_ms(500);
}
// Consumer Page
else if (code == KB_AUDIO_MUTE) {
consumer_code = AUDIO_MUTE;
} else if (code == KB_AUDIO_VOL_UP) {
consumer_code = AUDIO_VOL_UP;
} else if (code == KB_AUDIO_VOL_DOWN) {
consumer_code = AUDIO_VOL_DOWN;
}
else if (code == KB_MEDIA_NEXT_TRACK) {
consumer_code = TRANSPORT_NEXT_TRACK;
} else if (code == KB_MEDIA_PREV_TRACK) {
consumer_code = TRANSPORT_PREV_TRACK;
} else if (code == KB_MEDIA_STOP) {
consumer_code = TRANSPORT_STOP;
} else if (code == KB_MEDIA_PLAY_PAUSE) {
consumer_code = TRANSPORT_PLAY_PAUSE;
} else if (code == KB_MEDIA_SELECT) {
consumer_code = AL_CC_CONFIG;
}
else if (code == KB_MAIL) {
consumer_code = AL_EMAIL;
} else if (code == KB_CALCULATOR) {
consumer_code = AL_CALCULATOR;
} else if (code == KB_MY_COMPUTER) {
consumer_code = AL_LOCAL_BROWSER;
}
else if (code == KB_WWW_SEARCH) {
consumer_code = AC_SEARCH;
} else if (code == KB_WWW_HOME) {
consumer_code = AC_HOME;
} else if (code == KB_WWW_BACK) {
consumer_code = AC_BACK;
} else if (code == KB_WWW_FORWARD) {
consumer_code = AC_FORWARD;
} else if (code == KB_WWW_STOP) {
consumer_code = AC_STOP;
} else if (code == KB_WWW_REFRESH) {
consumer_code = AC_REFRESH;
} else if (code == KB_WWW_FAVORITES) {
consumer_code = AC_BOOKMARKS;
}
#endif
else if (IS_KEY(code)) {
host_add_key(code);
}
#ifdef MOUSEKEY_ENABLE
else if (IS_MOUSEKEY(code)) {
mousekey_decode(code);
}
#endif
else {
debug("ignore keycode: "); debug_hex(code); debug("\n");
}
}
}
layer_switching(fn_bits);
if (command_proc()) {
return;
}
// TODO: should send only when changed from last report
if (matrix_is_modified()) {
host_send_keyboard_report();
#ifdef EXTRAKEY_ENABLE
host_consumer_send(consumer_code);
#endif
#ifdef DEBUG_LED
// LED flash for debug
DEBUG_LED_CONFIG;
DEBUG_LED_OFF;
#endif
}
#ifdef MOUSEKEY_ENABLE
mousekey_send();
#endif
#ifdef PS2_MOUSE_ENABLE
// TODO: should comform new API
if (ps2_mouse_read() == 0)
ps2_mouse_usb_send();
#endif
if (last_leds != host_keyboard_leds()) {
keyboard_set_leds(host_keyboard_leds());
last_leds = host_keyboard_leds();
}
}
void keyboard_set_leds(uint8_t leds)
{
led_set(leds);
}

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/*
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/>.
*/
#ifndef KEYBOARD_H
#define KEYBOARD_H
#include <stdint.h>
void keyboard_init(void);
void keyboard_proc(void);
void keyboard_set_leds(uint8_t leds);
#endif

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/*
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/>.
*/
#ifndef KEYMAP_H
#define KEYMAP_H
#include <stdint.h>
#include <stdbool.h>
/* keycode in specific layer */
uint8_t keymap_get_keycode(uint8_t layer, uint8_t row, uint8_t col);
/* layer to move during press Fn key */
uint8_t keymap_fn_layer(uint8_t fn_bits);
/* keycode to send when release Fn key without using */
uint8_t keymap_fn_keycode(uint8_t fn_bits);
#endif

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/*
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/>.
*/
#include "keymap.h"
#include "host.h"
#include "debug.h"
#include "timer.h"
#include "usb_keycodes.h"
#include "layer.h"
/*
* Parameters:
* SWITCH_DELAY |=======|
* SEND_FN_TERM |================|
*
* Fn key processing cases:
* 1. release Fn after SEND_FN_TERM.
* Layer sw ___________|~~~~~~~~~~~|___
* Fn press ___|~~~~~~~~~~~~~~~~~~~|___
* Fn send ___________________________
*
* 2. release Fn during SEND_FN_TERM.(not layer used)
* Layer sw ___________|~~~~~~|________
* Fn press ___|~~~~~~~~~~~~~~|________
* Fn key send __________________|~|______
* other key press ___________________________
* other key send ___________________________
*
* 3. release Fn during SEND_FN_TERM.(layer used)
* Layer sw ___________|~~~~~~|________
* Fn press ___|~~~~~~~~~~~~~~|________
* Fn key send ___________________________
* Fn send ___________________________
* other key press _____________|~~|__________
* other key send _____________|~~|__________
*
* 4. press other key during SWITCH_DELAY.
* Layer sw ___________________________
* Fn key press ___|~~~~~~~~~|_____________
* Fn key send ______|~~~~~~|_____________
* other key press ______|~~~|________________
* other key send _______|~~|________________
*
* 5. press Fn while press other key.
* Layer sw ___________________________
* Fn key press ___|~~~~~~~~~|_____________
* Fn key send ___|~~~~~~~~~|_____________
* other key press ~~~~~~~|___________________
* other key send ~~~~~~~|___________________
*
* 6. press Fn twice quickly and keep holding down.(repeat)
* Layer sw ___________________________
* Fn key press ___|~|____|~~~~~~~~~~~~~~~~
* Fn key send _____|~|__|~~~~~~~~~~~~~~~~
*/
// LAYER_SWITCH_DELAY: prevent from moving to new layer
#ifndef LAYER_SWITCH_DELAY
# define LAYER_SWITCH_DELAY 150
#endif
// LAYER_SEND_FN_TERM: send keycode if release key in this term
#ifndef LAYER_SEND_FN_TERM
# define LAYER_SEND_FN_TERM 500
#endif
uint8_t default_layer = 0;
uint8_t current_layer = 0;
static bool layer_used = false;
static uint8_t new_layer(uint8_t fn_bits);
uint8_t layer_get_keycode(uint8_t row, uint8_t col)
{
uint8_t code = keymap_get_keycode(current_layer, row, col);
// normal key or mouse key
if ((IS_KEY(code) || IS_MOUSEKEY(code))) {
layer_used = true;
}
return code;
}
// bit substract b from a
#define BIT_SUBST(a, b) (a&(a^b))
void layer_switching(uint8_t fn_bits)
{
// layer switching
static uint8_t last_fn = 0;
static uint8_t last_mods = 0;
static uint16_t last_timer = 0;
static uint8_t sent_fn = 0;
if (fn_bits == last_fn) { // Fn state is not changed
if (fn_bits == 0) {
// do nothing
} else {
if (!keymap_fn_keycode(BIT_SUBST(fn_bits, sent_fn)) ||
timer_elapsed(last_timer) > LAYER_SWITCH_DELAY) {
uint8_t _layer_to_switch = new_layer(BIT_SUBST(fn_bits, sent_fn));
if (current_layer != _layer_to_switch) { // not switch layer yet
debug("Fn case: 1,2,3(LAYER_SWITCH_DELAY passed)\n");
debug("Switch Layer: "); debug_hex(current_layer);
current_layer = _layer_to_switch;
layer_used = false;
debug(" -> "); debug_hex(current_layer); debug("\n");
}
} else {
if (host_has_anykey()) { // other keys is pressed
uint8_t _fn_to_send = BIT_SUBST(fn_bits, sent_fn);
if (_fn_to_send) {
debug("Fn case: 4(press other key during SWITCH_DELAY.)\n");
// send only Fn key first
uint8_t tmp_mods = keyboard_report->mods;
host_add_code(keymap_fn_keycode(_fn_to_send));
host_set_mods(last_mods);
host_send_keyboard_report();
host_set_mods(tmp_mods);
host_del_code(keymap_fn_keycode(_fn_to_send));
sent_fn |= _fn_to_send;
}
}
}
// add Fn keys to send
//host_add_code(keymap_fn_keycode(fn_bits&sent_fn)); // TODO: do all Fn keys
}
} else { // Fn state is changed(edge)
uint8_t fn_changed = 0;
debug("fn_bits: "); debug_bin(fn_bits); debug("\n");
debug("sent_fn: "); debug_bin(sent_fn); debug("\n");
debug("last_fn: "); debug_bin(last_fn); debug("\n");
debug("last_mods: "); debug_hex(last_mods); debug("\n");
debug("last_timer: "); debug_hex16(last_timer); debug("\n");
debug("timer_count: "); debug_hex16(timer_count); debug("\n");
// pressed Fn
if ((fn_changed = BIT_SUBST(fn_bits, last_fn))) {
debug("fn_changed: "); debug_bin(fn_changed); debug("\n");
if (host_has_anykey()) {
debug("Fn case: 5(pressed Fn with other key)\n");
sent_fn |= fn_changed;
} else if (fn_changed & sent_fn) { // pressed same Fn in a row
if (timer_elapsed(last_timer) > LAYER_SEND_FN_TERM) {
debug("Fn case: 6(not repeat)\n");
// time passed: not repeate
sent_fn &= ~fn_changed;
} else {
debug("Fn case: 6(repeat)\n");
}
}
}
// released Fn
if ((fn_changed = BIT_SUBST(last_fn, fn_bits))) {
debug("fn_changed: "); debug_bin(fn_changed); debug("\n");
if (timer_elapsed(last_timer) < LAYER_SEND_FN_TERM) {
if (!layer_used && BIT_SUBST(fn_changed, sent_fn)) {
debug("Fn case: 2(send Fn one shot: released Fn during LAYER_SEND_FN_TERM)\n");
// send only Fn key first
uint8_t tmp_mods = keyboard_report->mods;
host_add_code(keymap_fn_keycode(fn_changed));
host_set_mods(last_mods);
host_send_keyboard_report();
host_set_mods(tmp_mods);
host_del_code(keymap_fn_keycode(fn_changed));
sent_fn |= fn_changed;
}
}
debug("Switch Layer(released Fn): "); debug_hex(current_layer);
current_layer = new_layer(BIT_SUBST(fn_bits, sent_fn));
debug(" -> "); debug_hex(current_layer); debug("\n");
}
layer_used = false;
last_fn = fn_bits;
last_mods = keyboard_report->mods;
last_timer = timer_read();
}
// send Fn keys
for (uint8_t i = 0; i < 8; i++) {
if ((sent_fn & fn_bits) & (1<<i)) {
host_add_code(keymap_fn_keycode(1<<i));
}
}
}
inline
static uint8_t new_layer(uint8_t fn_bits)
{
return (fn_bits ? keymap_fn_layer(fn_bits) : default_layer);
}

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/*
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/>.
*/
#ifndef LAYER_H
#define LAYER_H 1
#include <stdint.h>
extern uint8_t default_layer;
extern uint8_t current_layer;
/* return keycode for switch */
uint8_t layer_get_keycode(uint8_t row, uint8_t col);
/* process layer switching */
void layer_switching(uint8_t fn_bits);
#endif

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/*
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/>.
*/
#ifndef LED_H
#define LED_H
#include "stdint.h"
/* keyboard LEDs */
#define USB_LED_NUM_LOCK 0
#define USB_LED_CAPS_LOCK 1
#define USB_LED_SCROLL_LOCK 2
#define USB_LED_COMPOSE 3
#define USB_LED_KANA 4
void led_set(uint8_t usb_led);
#endif

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/*
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/>.
*/
#ifndef MATRIX_H
#define MATRIX_H
#include <stdbool.h>
/* number of matrix rows */
uint8_t matrix_rows(void);
/* number of matrix columns */
uint8_t matrix_cols(void);
/* intialize matrix for scaning. should be called once. */
void matrix_init(void);
/* scan all key states on matrix */
uint8_t matrix_scan(void);
/* whether modified from previous scan. used after matrix_scan. */
bool matrix_is_modified(void);
/* whether ghosting occur on matrix. */
bool matrix_has_ghost(void);
/* whether a swtich is on */
bool matrix_is_on(uint8_t row, uint8_t col);
/* matrix state on row */
#if (MATRIX_COLS <= 8)
uint8_t matrix_get_row(uint8_t row);
#else
uint16_t matrix_get_row(uint8_t row);
#endif
/* count keys pressed */
uint8_t matrix_key_count(void);
/* print matrix for debug */
void matrix_print(void);
#endif

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/*
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/>.
*/
#include <stdint.h>
#include <util/delay.h>
#include "usb_keycodes.h"
#include "host.h"
#include "timer.h"
#include "print.h"
#include "debug.h"
#include "mousekey.h"
static report_mouse_t report;
static report_mouse_t report_prev;
static uint8_t mousekey_repeat = 0;
static void mousekey_debug(void);
/*
* TODO: fix acceleration algorithm
* see wikipedia http://en.wikipedia.org/wiki/Mouse_keys
*/
#ifndef MOUSEKEY_DELAY_TIME
# define MOUSEKEY_DELAY_TIME 255
#endif
// acceleration parameters
uint8_t mousekey_move_unit = 2;
uint8_t mousekey_resolution = 5;
static inline uint8_t move_unit(void)
{
uint16_t unit = 5 + mousekey_repeat*2;
return (unit > 63 ? 63 : unit);
}
void mousekey_decode(uint8_t code)
{
if (code == KB_MS_UP) report.y = -move_unit();
else if (code == KB_MS_DOWN) report.y = move_unit();
else if (code == KB_MS_LEFT) report.x = -move_unit();
else if (code == KB_MS_RIGHT) report.x = move_unit();
else if (code == KB_MS_BTN1) report.buttons |= MOUSE_BTN1;
else if (code == KB_MS_BTN2) report.buttons |= MOUSE_BTN2;
else if (code == KB_MS_BTN3) report.buttons |= MOUSE_BTN3;
else if (code == KB_MS_BTN4) report.buttons |= MOUSE_BTN4;
else if (code == KB_MS_BTN5) report.buttons |= MOUSE_BTN5;
else if (code == KB_MS_WH_UP) report.v += move_unit()/4;
else if (code == KB_MS_WH_DOWN) report.v -= move_unit()/4;
else if (code == KB_MS_WH_LEFT) report.h -= move_unit()/4;
else if (code == KB_MS_WH_RIGHT)report.h += move_unit()/4;
}
bool mousekey_changed(void)
{
return (report.buttons != report_prev.buttons ||
report.x || report.y || report.v || report.h);
}
void mousekey_send(void)
{
static uint16_t last_timer = 0;
if (!mousekey_changed()) {
mousekey_repeat = 0;
mousekey_clear_report();
return;
}
// send immediately when buttun state is changed
if (report.buttons == report_prev.buttons) {
if (timer_elapsed(last_timer) < 100) {
mousekey_clear_report();
return;
}
}
if (mousekey_repeat != 0xFF) {
mousekey_repeat++;
}
if (report.x && report.y) {
report.x *= 0.7;
report.y *= 0.7;
}
mousekey_debug();
host_mouse_send(&report);
report_prev = report;
last_timer = timer_read();
mousekey_clear_report();
}
void mousekey_clear_report(void)
{
report.buttons = 0;
report.x = 0;
report.y = 0;
report.v = 0;
report.h = 0;
}
static void mousekey_debug(void)
{
if (!debug_mouse) return;
print("mousekey[btn|x y v h]: ");
phex(report.buttons); print("|");
phex(report.x); print(" ");
phex(report.y); print(" ");
phex(report.v); print(" ");
phex(report.h);
phex(mousekey_repeat);
print("\n");
}

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/*
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/>.
*/
#ifndef MOUSEKEY_H
#define MOUSEKEY_H
#include <stdbool.h>
#include "host.h"
void mousekey_decode(uint8_t code);
bool mousekey_changed(void);
void mousekey_send(void);
void mousekey_clear_report(void);
#endif

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/* Very basic print functions, intended to be used with usb_debug_only.c
* http://www.pjrc.com/teensy/
* Copyright (c) 2008 PJRC.COM, LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <avr/io.h>
#include <avr/pgmspace.h>
#include "print.h"
#include "sendchar.h"
bool print_enable = false;
void print_S(const char *s)
{
if (!print_enable) return;
char c;
while (1) {
c = *s++;
if (!c) break;
if (c == '\n') sendchar('\r');
sendchar(c);
}
}
void print_P(const char *s)
{
if (!print_enable) return;
char c;
while (1) {
c = pgm_read_byte(s++);
if (!c) break;
if (c == '\n') sendchar('\r');
sendchar(c);
}
}
void phex1(unsigned char c)
{
if (!print_enable) return;
sendchar(c + ((c < 10) ? '0' : 'A' - 10));
}
void phex(unsigned char c)
{
if (!print_enable) return;
phex1(c >> 4);
phex1(c & 15);
}
void phex16(unsigned int i)
{
if (!print_enable) return;
phex(i >> 8);
phex(i);
}
void pbin(unsigned char c)
{
if (!print_enable) return;
for (int i = 7; i >= 0; i--) {
sendchar((c & (1<<i)) ? '1' : '0');
}
}
void pbin_reverse(unsigned char c)
{
if (!print_enable) return;
for (int i = 0; i < 8; i++) {
sendchar((c & (1<<i)) ? '1' : '0');
}
}

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/* Very basic print functions, intended to be used with usb_debug_only.c
* http://www.pjrc.com/teensy/
* Copyright (c) 2008 PJRC.COM, LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef PRINT_H__
#define PRINT_H__ 1
#include <stdint.h>
#include <stdbool.h>
#include <avr/pgmspace.h>
extern bool print_enable;
// this macro allows you to write print("some text") and
// the string is automatically placed into flash memory :)
#define print(s) print_P(PSTR(s))
void print_S(const char *s);
void print_P(const char *s);
void phex(unsigned char c);
void phex16(unsigned int i);
void pbin(unsigned char c);
void pbin_reverse(unsigned char c);
#endif

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/*
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/>.
*/
#ifndef REPORT_H
#define REPORT_H
#include <stdint.h>
/* report id */
#define REPORT_ID_MOUSE 1
#define REPORT_ID_SYSTEM 2
#define REPORT_ID_CONSUMER 3
/* mouse buttons */
#define MOUSE_BTN1 (1<<0)
#define MOUSE_BTN2 (1<<1)
#define MOUSE_BTN3 (1<<2)
#define MOUSE_BTN4 (1<<3)
#define MOUSE_BTN5 (1<<4)
// Consumer Page(0x0C)
// following are supported by Windows: http://msdn.microsoft.com/en-us/windows/hardware/gg463372.aspx
#define AUDIO_MUTE 0x00E2
#define AUDIO_VOL_UP 0x00E9
#define AUDIO_VOL_DOWN 0x00EA
#define TRANSPORT_NEXT_TRACK 0x00B5
#define TRANSPORT_PREV_TRACK 0x00B6
#define TRANSPORT_STOP 0x00B7
#define TRANSPORT_PLAY_PAUSE 0x00CD
#define AL_CC_CONFIG 0x0183
#define AL_EMAIL 0x018A
#define AL_CALCULATOR 0x0192
#define AL_LOCAL_BROWSER 0x0194
#define AC_SEARCH 0x0221
#define AC_HOME 0x0223
#define AC_BACK 0x0224
#define AC_FORWARD 0x0225
#define AC_STOP 0x0226
#define AC_REFRESH 0x0227
#define AC_BOOKMARKS 0x022A
// supplement for Bluegiga iWRAP HID(not supported by Windows?)
#define AL_LOCK 0x019E
#define TRANSPORT_RECORD 0x00B2
#define TRANSPORT_REWIND 0x00B4
#define TRANSPORT_EJECT 0x00B8
#define AC_MINIMIZE 0x0206
// Generic Desktop Page(0x01)
#define SYSTEM_POWER_DOWN 0x0081
#define SYSTEM_SLEEP 0x0082
#define SYSTEM_WAKE_UP 0x0083
// key report size(NKRO or boot mode)
#if defined(HOST_PJRC)
# include "usb.h"
# if defined(KBD2_REPORT_KEYS) && KBD2_REPORT_KEYS > KBD_REPORT_KEYS
# define REPORT_KEYS KBD2_REPORT_KEYS
# else
# define REPORT_KEYS KBD_REPORT_KEYS
# endif
#else
# define REPORT_KEYS 6
#endif
typedef struct {
uint8_t mods;
uint8_t rserved;
uint8_t keys[REPORT_KEYS];
} report_keyboard_t;
typedef struct {
uint8_t report_id;
uint8_t buttons;
int8_t x;
int8_t y;
int8_t v;
int8_t h;
} report_mouse_t;
#endif

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/*
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/>.
*/
#ifndef SENDCHAR_H
#define SENDCHAR_H
#include <stdint.h>
/* transmit a character. return 0 on success, -1 on error. */
int8_t sendchar(uint8_t c);
#endif

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/*
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/>.
*/
#include "sendchar.h"
int8_t sendchar(uint8_t c)
{
return 0;
}

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/*
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/>.
*/
#include "uart.h"
#include "sendchar.h"
int8_t sendchar(uint8_t c)
{
uart_putchar(c);
return 0;
}

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/*
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/>.
*/
#include <avr/io.h>
#include <avr/interrupt.h>
#include <stdint.h>
#include "timer.h"
// counter resolution 1ms
volatile uint16_t timer_count = 0;
void timer_init(void)
{
// Timer0 CTC mode
TCCR0A = 0x02;
#if TIMER_PRESCALER == 1
TCCR0B = 0x01;
#elif TIMER_PRESCALER == 8
TCCR0B = 0x02;
#elif TIMER_PRESCALER == 64
TCCR0B = 0x03;
#elif TIMER_PRESCALER == 256
TCCR0B = 0x04;
#elif TIMER_PRESCALER == 1024
TCCR0B = 0x05;
#else
# error "Timer prescaler value is NOT vaild."
#endif
OCR0A = TIMER_RAW_TOP;
TIMSK0 = (1<<OCIE0A);
}
inline
void timer_clear(void)
{
uint8_t sreg = SREG;
cli();
timer_count = 0;
SREG = sreg;
}
inline
uint16_t timer_read(void)
{
uint16_t t;
uint8_t sreg = SREG;
cli();
t = timer_count;
SREG = sreg;
return t;
}
inline
uint16_t timer_elapsed(uint16_t last)
{
uint16_t t;
uint8_t sreg = SREG;
cli();
t = timer_count;
SREG = sreg;
return TIMER_DIFF_MS(t, last);
}
// excecuted once per 1ms.(excess for just timer count?)
ISR(TIMER0_COMPA_vect)
{
timer_count++;
}

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/*
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/>.
*/
#ifndef TIMER_H
#define TIMER_H 1
#include <stdint.h>
#ifndef TIMER_PRESCALER
# if F_CPU > 16000000
# define TIMER_PRESCALER 256
# elif F_CPU >= 4000000
# define TIMER_PRESCALER 64
# else
# define TIMER_PRESCALER 8
# endif
#endif
#define TIMER_RAW_FREQ (F_CPU/TIMER_PRESCALER)
#define TIMER_RAW TCNT0
#define TIMER_RAW_TOP (TIMER_RAW_FREQ/1000)
#if (TIMER_RAW_TOP > 255)
# error "Timer0 can't count 1ms at this clock freq. Use larger prescaler."
#endif
#define TIMER_DIFF(a, b, max) ((a) >= (b) ? (a) - (b) : (max) - (b) + (a))
#define TIMER_DIFF_RAW(a, b) TIMER_DIFF(a, b, UINT8_MAX)
#define TIMER_DIFF_MS(a, b) TIMER_DIFF(a, b, UINT16_MAX)
extern volatile uint16_t timer_count;
void timer_init(void);
void timer_clear(void);
uint16_t timer_read(void);
uint16_t timer_elapsed(uint16_t last);
#endif

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// TODO: Teensy support(ATMega32u4/AT90USB128)
// Fixed for Arduino Duemilanove ATmega168p by Jun Wako
/* UART Example for Teensy USB Development Board
* http://www.pjrc.com/teensy/
* Copyright (c) 2009 PJRC.COM, LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
// Version 1.0: Initial Release
// Version 1.1: Add support for Teensy 2.0, minor optimizations
#include <avr/io.h>
#include <avr/interrupt.h>
#include "uart.h"
// These buffers may be any size from 2 to 256 bytes.
#define RX_BUFFER_SIZE 64
#define TX_BUFFER_SIZE 40
static volatile uint8_t tx_buffer[TX_BUFFER_SIZE];
static volatile uint8_t tx_buffer_head;
static volatile uint8_t tx_buffer_tail;
static volatile uint8_t rx_buffer[RX_BUFFER_SIZE];
static volatile uint8_t rx_buffer_head;
static volatile uint8_t rx_buffer_tail;
// Initialize the UART
void uart_init(uint32_t baud)
{
cli();
UBRR0 = (F_CPU / 4 / baud - 1) / 2;
UCSR0A = (1<<U2X0);
UCSR0B = (1<<RXEN0) | (1<<TXEN0) | (1<<RXCIE0);
UCSR0C = (1<<UCSZ01) | (1<<UCSZ00);
tx_buffer_head = tx_buffer_tail = 0;
rx_buffer_head = rx_buffer_tail = 0;
sei();
}
// Transmit a byte
void uart_putchar(uint8_t c)
{
uint8_t i;
i = tx_buffer_head + 1;
if (i >= TX_BUFFER_SIZE) i = 0;
while (tx_buffer_tail == i) ; // wait until space in buffer
//cli();
tx_buffer[i] = c;
tx_buffer_head = i;
UCSR0B = (1<<RXEN0) | (1<<TXEN0) | (1<<RXCIE0) | (1<<UDRIE0);
//sei();
}
// Receive a byte
uint8_t uart_getchar(void)
{
uint8_t c, i;
while (rx_buffer_head == rx_buffer_tail) ; // wait for character
i = rx_buffer_tail + 1;
if (i >= RX_BUFFER_SIZE) i = 0;
c = rx_buffer[i];
rx_buffer_tail = i;
return c;
}
// Return the number of bytes waiting in the receive buffer.
// Call this before uart_getchar() to check if it will need
// to wait for a byte to arrive.
uint8_t uart_available(void)
{
uint8_t head, tail;
head = rx_buffer_head;
tail = rx_buffer_tail;
if (head >= tail) return head - tail;
return RX_BUFFER_SIZE + head - tail;
}
// Transmit Interrupt
ISR(USART_UDRE_vect)
{
uint8_t i;
if (tx_buffer_head == tx_buffer_tail) {
// buffer is empty, disable transmit interrupt
UCSR0B = (1<<RXEN0) | (1<<TXEN0) | (1<<RXCIE0);
} else {
i = tx_buffer_tail + 1;
if (i >= TX_BUFFER_SIZE) i = 0;
UDR0 = tx_buffer[i];
tx_buffer_tail = i;
}
}
// Receive Interrupt
ISR(USART_RX_vect)
{
uint8_t c, i;
c = UDR0;
i = rx_buffer_head + 1;
if (i >= RX_BUFFER_SIZE) i = 0;
if (i != rx_buffer_tail) {
rx_buffer[i] = c;
rx_buffer_head = i;
}
}

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#ifndef _uart_included_h_
#define _uart_included_h_
#include <stdint.h>
void uart_init(uint32_t baud);
void uart_putchar(uint8_t c);
uint8_t uart_getchar(void);
uint8_t uart_available(void);
#endif

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/*
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/>.
*/
/*
* Key codes: HID Keyboard/Keypad Page(0x07)
* http://www.usb.org/developers/devclass_docs/Hut1_12.pdf
*/
#ifndef USB_KEYCODES_H
#define USB_KEYCODES_H
#define IS_ERROR(code) (KB_ROLL_OVER <= (code) && (code) <= KB_UNDEFINED)
#define IS_KEY(code) (KB_A <= (code) && (code) <= KB_EXSEL)
#define IS_MOD(code) (KB_LCTRL <= (code) && (code) <= KB_RGUI)
#define IS_FN(code) (KB_FN0 <= (code) && (code) <= KB_FN7)
#define IS_MOUSEKEY(code) (KB_MS_UP <= (code) && (code) <= KB_MS_WH_RIGHT)
#define IS_MOUSEKEY_MOVE(code) (KB_MS_UP <= (code) && (code) <= KB_MS_RIGHT)
#define IS_MOUSEKEY_BUTTON(code) (KB_MS_BTN1 <= (code) && (code) <= KB_MS_BTN5)
#define IS_MOUSEKEY_WHEEL(code) (KB_MS_WH_UP <= (code) && (code) <= KB_MS_WH_RIGHT)
#define MOD_BIT(code) (1<<((code) & 0x07))
#define FN_BIT(code) (1<<((code) - KB_FN0))
/* Short names */
#define KB_LCTL KB_LCTRL
#define KB_RCTL KB_RCTRL
#define KB_LSFT KB_LSHIFT
#define KB_RSFT KB_RSHIFT
#define KB_ESC KB_ESCAPE
#define KB_BSPC KB_BSPACE
#define KB_ENT KB_ENTER
#define KB_DEL KB_DELETE
#define KB_INS KB_INSERT
#define KB_CAPS KB_CAPSLOCK
#define KB_RGHT KB_RIGHT
#define KB_PGDN KB_PGDOWN
#define KB_PSCR KB_PSCREEN
#define KB_SLCK KB_SCKLOCK
#define KB_PAUS KB_PAUSE
#define KB_BRK KB_PAUSE
#define KB_NLCK KB_NUMLOCK
#define KB_SPC KB_SPACE
#define KB_MINS KB_MINUS
#define KB_EQL KB_EQUAL
#define KB_GRV KB_GRAVE
#define KB_RBRC KB_RBRACKET
#define KB_LBRC KB_LBRACKET
#define KB_COMM KB_COMMA
#define KB_BSLS KB_BSLASH
#define KB_SLSH KB_SLASH
#define KB_SCLN KB_SCOLON
#define KB_QUOT KB_QUOTE
#define KB_APP KB_APPLICATION
#define KB_NUHS KB_NONUS_HASH
#define KB_NUBS KB_NONUS_BSLASH
#define KB_ERAS KB_ALT_ERASE,
#define KB_CLR KB_CLEAR
/* for Japanese */
#define KB_ZKHK KB_GRAVE
#define KB_RO KB_INT1
#define KB_KANA KB_INT2
#define KB_JYEN KB_INT3
#define KB_HENK KB_INT4
#define KB_MHEN KB_INT5
/* Keypad */
#define KB_P1 KB_KP_1
#define KB_P2 KB_KP_2
#define KB_P3 KB_KP_3
#define KB_P4 KB_KP_4
#define KB_P5 KB_KP_5
#define KB_P6 KB_KP_6
#define KB_P7 KB_KP_7
#define KB_P8 KB_KP_8
#define KB_P9 KB_KP_9
#define KB_P0 KB_KP_0
#define KB_PDOT KB_KP_DOT
#define KB_PCMM KB_KP_COMMA
#define KB_PSLS KB_KP_SLASH
#define KB_PAST KB_KP_ASTERISK
#define KB_PMNS KB_KP_MINUS
#define KB_PPLS KB_KP_PLUS
#define KB_PEQL KB_KP_EQUAL
#define KB_PENT KB_KP_ENTER
/* Mousekey */
#define KB_MS_U KB_MS_UP
#define KB_MS_D KB_MS_DOWN
#define KB_MS_L KB_MS_LEFT
#define KB_MS_R KB_MS_RIGHT
#define KB_BTN1 KB_MS_BTN1
#define KB_BTN2 KB_MS_BTN2
#define KB_BTN3 KB_MS_BTN3
#define KB_BTN4 KB_MS_BTN4
#define KB_BTN5 KB_MS_BTN5
#define KB_WH_U KB_MS_WH_UP
#define KB_WH_D KB_MS_WH_DOWN
#define KB_WH_L KB_MS_WH_LEFT
#define KB_WH_R KB_MS_WH_RIGHT
/* Sytem Control & Consumer usage */
#define KB_PWR KB_SYSTEM_POWER
#define KB_SLEP KB_SYSTEM_SLEEP
#define KB_WAKE KB_SYSTEM_WAKE
#define KB_MUTE KB_AUDIO_MUTE
#define KB_VOLU KB_AUDIO_VOL_UP
#define KB_VOLD KB_AUDIO_VOL_DOWN
#define KB_MNXT KB_MEDIA_NEXT_TRACK
#define KB_MPRV KB_MEDIA_PREV_TRACK
#define KB_MSTP KB_MEDIA_STOP
#define KB_MPLY KB_MEDIA_PLAY_PAUSE
#define KB_MSEL KB_MEDIA_SELECT
#define KB_MAIL KB_MAIL
#define KB_CALC KB_CALCULATOR
#define KB_MYCM KB_MY_COMPUTER
#define KB_WSCH KB_WWW_SEARCH
#define KB_WHOM KB_WWW_HOME
#define KB_WBAK KB_WWW_BACK
#define KB_WFWD KB_WWW_FORWARD
#define KB_WSTP KB_WWW_STOP
#define KB_WREF KB_WWW_REFRESH
#define KB_WFAV KB_WWW_FAVORITES
/* Special keycode */
enum special_keycodes {
/* System Control */
KB_SYSTEM_POWER = 0xB0,
KB_SYSTEM_SLEEP,
KB_SYSTEM_WAKE,
/* Consumer Page */
KB_AUDIO_MUTE,
KB_AUDIO_VOL_UP,
KB_AUDIO_VOL_DOWN,
KB_MEDIA_NEXT_TRACK,
KB_MEDIA_PREV_TRACK,
KB_MEDIA_STOP,
KB_MEDIA_PLAY_PAUSE,
KB_MEDIA_SELECT,
KB_MAIL,
KB_CALCULATOR,
KB_MY_COMPUTER,
KB_WWW_SEARCH,
KB_WWW_HOME,
KB_WWW_BACK, /* 0xC0 */
KB_WWW_FORWARD,
KB_WWW_STOP,
KB_WWW_REFRESH,
KB_WWW_FAVORITES,
/* reserve 0xE0-E7 for Modifiers */
/* Layer Switching */
KB_FN0 = 0xE8,
KB_FN1,
KB_FN2,
KB_FN3,
KB_FN4,
KB_FN5,
KB_FN6,
KB_FN7,
/* Mousekey */
KB_MS_UP = 0xF0,
KB_MS_DOWN,
KB_MS_LEFT,
KB_MS_RIGHT,
KB_MS_BTN1,
KB_MS_BTN2,
KB_MS_BTN3,
KB_MS_BTN4,
KB_MS_BTN5,
/* Mousekey wheel */
KB_MS_WH_UP,
KB_MS_WH_DOWN,
KB_MS_WH_LEFT,
KB_MS_WH_RIGHT,
};
enum keycodes {
KB_NO = 0,
KB_ROLL_OVER,
KB_POST_FAIL,
KB_UNDEFINED,
KB_A,
KB_B,
KB_C,
KB_D,
KB_E,
KB_F,
KB_G,
KB_H,
KB_I,
KB_J,
KB_K,
KB_L,
KB_M, /* 0x10 */
KB_N,
KB_O,
KB_P,
KB_Q,
KB_R,
KB_S,
KB_T,
KB_U,
KB_V,
KB_W,
KB_X,
KB_Y,
KB_Z,
KB_1,
KB_2,
KB_3, /* 0x20 */
KB_4,
KB_5,
KB_6,
KB_7,
KB_8,
KB_9,
KB_0,
KB_ENTER,
KB_ESCAPE,
KB_BSPACE,
KB_TAB,
KB_SPACE,
KB_MINUS,
KB_EQUAL,
KB_LBRACKET,
KB_RBRACKET, /* 0x30 */
KB_BSLASH, /* \ (and |) */
KB_NONUS_HASH, /* Non-US # and ~ */
KB_SCOLON, /* ; (and :) */
KB_QUOTE, /* ' and " */
KB_GRAVE, /* Grave accent and tilde */
KB_COMMA, /* , and < */
KB_DOT, /* . and > */
KB_SLASH, /* / and ? */
KB_CAPSLOCK,
KB_F1,
KB_F2,
KB_F3,
KB_F4,
KB_F5,
KB_F6,
KB_F7, /* 0x40 */
KB_F8,
KB_F9,
KB_F10,
KB_F11,
KB_F12,
KB_PSCREEN,
KB_SCKLOCK,
KB_PAUSE,
KB_INSERT,
KB_HOME,
KB_PGUP,
KB_DELETE,
KB_END,
KB_PGDOWN,
KB_RIGHT,
KB_LEFT, /* 0x50 */
KB_DOWN,
KB_UP,
KB_NUMLOCK,
KB_KP_SLASH,
KB_KP_ASTERISK,
KB_KP_MINUS,
KB_KP_PLUS,
KB_KP_ENTER,
KB_KP_1,
KB_KP_2,
KB_KP_3,
KB_KP_4,
KB_KP_5,
KB_KP_6,
KB_KP_7,
KB_KP_8, /* 0x60 */
KB_KP_9,
KB_KP_0,
KB_KP_DOT,
KB_NONUS_BSLASH, /* Non-US \ and | */
KB_APPLICATION,
KB_POWER,
KB_KP_EQUAL,
KB_F13,
KB_F14,
KB_F15,
KB_F16,
KB_F17,
KB_F18,
KB_F19,
KB_F20,
KB_F21, /* 0x70 */
KB_F22,
KB_F23,
KB_F24,
KB_EXECUTE,
KB_HELP,
KB_MENU,
KB_SELECT,
KB_STOP,
KB_AGAIN,
KB_UNDO,
KB_CUT,
KB_COPY,
KB_PASTE,
KB_FIND,
KB__MUTE,
KB__VOLUP, /* 0x80 */
KB__VOLDOWN,
KB_LOCKING_CAPS, /* locking Caps Lock */
KB_LOCKING_NUM, /* locking Num Lock */
KB_LOCKING_SCROLL, /* locking Scroll Lock */
KB_KP_COMMA,
KB_KP_EQUAL_AS400, /* equal sign on AS/400 */
KB_INT1,
KB_INT2,
KB_INT3,
KB_INT4,
KB_INT5,
KB_INT6,
KB_INT7,
KB_INT8,
KB_INT9,
KB_LANG1, /* 0x90 */
KB_LANG2,
KB_LANG3,
KB_LANG4,
KB_LANG5,
KB_LANG6,
KB_LANG7,
KB_LANG8,
KB_LANG9,
KB_ALT_ERASE,
KB_SYSREQ,
KB_CANCEL,
KB_CLEAR,
KB_PRIOR,
KB_RETURN,
KB_SEPARATOR,
KB_OUT, /* 0xA0 */
KB_OPER,
KB_CLEAR_AGAIN,
KB_CRSEL,
KB_EXSEL,
/* NOTE: 0xB0-DF are used as special_keycodes */
#if 0
KB_KP_00 = 0xB0,
KB_KP_000,
KB_THOUSANDS_SEPARATOR,
KB_DECIMAL_SEPARATOR,
KB_CURRENCY_UNIT,
KB_CURRENCY_SUB_UNIT,
KB_KP_LPAREN,
KB_KP_RPAREN,
KB_KP_LCBRACKET, /* { */
KB_KP_RCBRACKET, /* } */
KB_KP_TAB,
KB_KP_BSPACE,
KB_KP_A,
KB_KP_B,
KB_KP_C,
KB_KP_D,
KB_KP_E, /* 0xC0 */
KB_KP_F,
KB_KP_XOR,
KB_KP_HAT,
KB_KP_PERC,
KB_KP_LT,
KB_KP_GT,
KB_KP_AND,
KB_KP_LAZYAND,
KB_KP_OR,
KB_KP_LAZYOR,
KB_KP_COLON,
KB_KP_HASH,
KB_KP_SPACE,
KB_KP_ATMARK,
KB_KP_EXCLAMATION,
KB_KP_MEM_STORE, /* 0xD0 */
KB_KP_MEM_RECALL,
KB_KP_MEM_CLEAR,
KB_KP_MEM_ADD,
KB_KP_MEM_SUB,
KB_KP_MEM_MUL,
KB_KP_MEM_DIV,
KB_KP_PLUS_MINUS,
KB_KP_CLEAR,
KB_KP_CLEAR_ENTRY,
KB_KP_BINARY,
KB_KP_OCTAL,
KB_KP_DECIMAL,
KB_KP_HEXADECIMAL,
#endif
/* Modifiers */
KB_LCTRL = 0xE0,
KB_LSHIFT,
KB_LALT,
KB_LGUI,
KB_RCTRL,
KB_RSHIFT,
KB_RALT,
KB_RGUI,
/* NOTE: 0xE8-FF are used as special_keycodes */
};
#endif /* USB_KEYCODES_H */

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/*
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/>.
*/
#include "util.h"
// bit population
int bitpop(uint8_t bits)
{
int c;
for (c = 0; bits; c++)
bits &= bits -1;
return c;
}
// most significant on-bit
int biton(uint8_t bits)
{
int n = 0;
if (bits >> 4) { bits >>= 4; n += 4;}
if (bits >> 2) { bits >>= 2; n += 2;}
if (bits >> 1) { bits >>= 1; n += 1;}
return n;
}

34
common/util.h Normal file
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/*
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/>.
*/
#ifndef UTIL_H
#define UTIL_H 1
#include <stdint.h>
// convert to L string
#define LSTR(s) XLSTR(s)
#define XLSTR(s) L ## #s
// convert to string
#define STR(s) XSTR(s)
#define XSTR(s) #s
int bitpop(uint8_t bits);
int biton(uint8_t bits);
#endif