host interface for pjrc

24 files changed, 472 insertions, 329 deletions

diff --git a/Makefile.common b/Makefile.common
index ae2a562ce..1922def00 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -1,18 +1,35 @@
-SRC +=  keyboard.c \
+SRC +=  host.c \
+        keyboard.c \
         command.c \
         layer.c \
         timer.c \
         print.c \
         util.c
 
+
 # Option modules
 ifdef MOUSEKEY_ENABLE
     SRC += mousekey.c
+    OPT_DEFS += -DMOUSEKEY_ENABLE
 endif
 
 ifdef PS2_MOUSE_ENABLE
     SRC += ps2.c \
            ps2_mouse.c
+    OPT_DEFS += -DPS2_MOUSE_ENABLE
+endif
+
+ifdef USB_EXTRA_ENABLE
+    OPT_DEFS += -DUSB_EXTRA_ENABLE
+endif
+
+ifdef USB_NKRO_ENABLE
+    OPT_DEFS += -DUSB_NKRO_ENABLE
+endif
+
+ifdef $(or MOUSEKEY_ENABLE, PS2_MOUSE_ENABLE)
+    OPT_DEFS += -DUSB_MOUSE_ENABLE
 endif
 
+
 include $(COMMON_DIR)/Makefile.rules
diff --git a/Makefile.pjrc b/Makefile.pjrc
index 4c0e83504..894d4dcee 100644
--- a/Makefile.pjrc
+++ b/Makefile.pjrc
@@ -1,19 +1,16 @@
-# Following variables need to be set in <target>/Makefile:
-#       TARGET
-#       COMMON_DIR
-#       TARGET_DIR
-#       TARGET_SRC
-#       MCU
-#       F_CPU
+OPT_DEFS += -DHOST_PJRC
 
-
-# List C source files here. (C dependencies are automatically generated.)
 SRC =   usb_keyboard.c \
         usb_debug.c \
         usb.c \
         jump_bootloader.c
 SRC +=  $(TARGET_SRC)
 
+
+# C source file search path
+VPATH = $(TARGET_DIR):$(COMMON_DIR):$(COMMON_DIR)/pjrc
+
+
 # Option modules
 ifdef $(or MOUSEKEY_ENABLE, PS2_MOUSE_ENABLE)
     SRC += usb_mouse.c
@@ -22,7 +19,3 @@ endif
 ifdef USB_EXTRA_ENABLE
     SRC += usb_extra.c
 endif
-
-
-# C source file search path
-VPATH = $(TARGET_DIR):$(COMMON_DIR):$(COMMON_DIR)/pjrc
diff --git a/Makefile.rules b/Makefile.rules
index 3de1c0def..77bdf8846 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -78,22 +78,6 @@ EXTRAINCDIRS = $(subst :, ,$(VPATH))
 CSTANDARD = -std=gnu99
 
 
-ifdef MOUSEKEY_ENABLE
-    OPT_DEFS += -DMOUSEKEY_ENABLE
-endif
-ifdef PS2_MOUSE_ENABLE
-    OPT_DEFS += -DPS2_MOUSE_ENABLE
-endif
-ifdef USB_EXTRA_ENABLE
-    OPT_DEFS += -DUSB_EXTRA_ENABLE
-endif
-ifdef USB_NKRO_ENABLE
-    OPT_DEFS += -DUSB_NKRO_ENABLE
-endif
-ifdef $(or MOUSEKEY_ENABLE, PS2_MOUSE_ENABLE)
-    OPT_DEFS += -DUSB_MOUSE_ENABLE
-endif
-
 # Place -D or -U options here for C sources
 CDEFS = -DF_CPU=$(F_CPU)UL
 CDEFS += $(OPT_DEFS)
diff --git a/Makefile.vusb b/Makefile.vusb
index 1d92d13bc..0ef1b1155 100644
--- a/Makefile.vusb
+++ b/Makefile.vusb
@@ -1,13 +1,5 @@
-# Following variables need to be set in <target>/Makefile:
-#       TARGET
-#       COMMON_DIR
-#       TARGET_DIR
-#       TARGET_SRC
-#       MCU
-#       F_CPU
+OPT_DEFS += -DHOST_VUSB
 
-
-# List C source files here. (C dependencies are automatically generated.)
 SRC =   usbdrv.c \
         usbdrvasm.S \
         oddebug.c
diff --git a/command.c b/command.c
new file mode 100644
index 000000000..a31a4007b
--- /dev/null
+++ b/command.c
@@ -0,0 +1,184 @@
+#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_skel.h"
+#include "command.h"
+
+#ifdef HOST_PJRC
+#   include "jump_bootloader.h"
+#   include "usb_keyboard.h"
+#   ifdef USB_EXTRA_ENABLE
+#       include "usb_extra.h"
+#   endif
+#endif
+
+
+static void help(void);
+static void switch_layer(uint8_t layer);
+
+
+uint8_t command_proc(void)
+{
+    if (!IS_COMMAND())
+        return 0;
+
+    uint8_t processed = 1;
+    bool last_print_enable = print_enable;
+    print_enable = true;
+    switch (keyboard_report->keys[0]) {
+        case KB_H:
+            help();
+            break;
+        case KB_B:
+#ifdef HOST_PJRC
+            host_clear_keyboard_report();
+            host_send_keyboard_report();
+            print("jump to bootloader...\n");
+            _delay_ms(1000);
+            jump_bootloader(); // not return
+#endif
+            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 (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("host_keyboard_leds:"); phex(host_keyboard_leds()); print("\n");
+#endif
+            break;
+#ifdef USB_NKRO_ENABLE
+        case KB_N:
+            keyboard_nkro = !keyboard_nkro;
+            if (keyboard_nkro)
+                print("USB_NKRO: enabled\n");
+            else
+                print("USB_NKRO: disabled\n");
+            break;
+#endif
+#ifdef USB_EXTRA_ENABLE
+        case KB_ESC:
+            if (suspend && remote_wakeup) {
+                usb_remote_wakeup();
+            } else {
+                usb_extra_system_send(SYSTEM_POWER_DOWN);
+            }
+            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:
+            processed = 0;
+    }
+    if (processed)
+        _delay_ms(500);
+    print_enable = last_print_enable;
+    return processed;
+}
+
+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 USB_NKRO_ENABLE
+    print("n: toggle USB_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");
+}
diff --git a/command.h b/command.h
new file mode 100644
index 000000000..e83aec625
--- /dev/null
+++ b/command.h
@@ -0,0 +1,6 @@
+#ifndef COMMAND_H
+#define COMMAND
+
+uint8_t command_proc(void);
+
+#endif
diff --git a/hhkb/Makefile b/hhkb/Makefile
index 8e771d955..7c7ed0ee2 100644
--- a/hhkb/Makefile
+++ b/hhkb/Makefile
@@ -9,7 +9,6 @@ TARGET_DIR = .
 
 # keyboard dependent files
 TARGET_SRC =    tmk.c \
-                host_pjrc.c \
                 keymap.c \
                 matrix.c \
                 led.c
diff --git a/hhkb/config.h b/hhkb/config.h
index cc86e55ca..b8392aa8e 100644
--- a/hhkb/config.h
+++ b/hhkb/config.h
@@ -13,9 +13,14 @@
 /* matrix size */
 #define MATRIX_ROWS 8
 #define MATRIX_COLS 8
+
 /* define if matrix has ghost */
 //#define MATRIX_HAS_GHOST
 
+/* key combination for command */
+#define IS_COMMAND() (keyboard_report->mods == (BIT_LSHIFT | BIT_RSHIFT))
+
+
 /* USB NKey Rollover */
 #ifdef USB_NKRO_ENABLE
 #endif
diff --git a/hhkb/led.c b/hhkb/led.c
new file mode 100644
index 000000000..a96176859
--- /dev/null
+++ b/hhkb/led.c
@@ -0,0 +1,9 @@
+#include "stdint.h"
+#include "led.h"
+
+
+/* HHKB has no LEDs */
+void led_set(uint8_t usb_led)
+{
+}
+
diff --git a/host.h b/host.h
index f2c8085c3..5764e02c3 100644
--- a/host.h
+++ b/host.h
@@ -26,7 +26,17 @@
 #define MOUSE_BTN5 (1<<4)
 
 
-#define REPORT_KEYS 6
+#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
+#elif defined(HOST_VUSB)
+#   define REPORT_KEYS 6
+#endif
+
 typedef struct {
     uint8_t mods;
     uint8_t rserved;
@@ -37,17 +47,21 @@ typedef struct {
     uint8_t buttons;
     int8_t x;
     int8_t y;
-/*
     int8_t v;
     int8_t h;
- */
 } report_mouse_t;
 
 
+#ifdef USB_NKRO_ENABLE
+extern bool keyboard_nkro;
+#endif
+
 extern report_keyboard_t *keyboard_report;
 extern report_keyboard_t *keyboard_report_prev;
 
 
+uint8_t host_keyboard_leds(void);
+
 /* keyboard report operations */
 void host_add_key(uint8_t key);
 void host_add_mod_bit(uint8_t mod);
@@ -61,7 +75,6 @@ uint8_t host_get_mods(void);
 
 
 void host_send_keyboard_report(void);
-void host_send_mouse_report(void);
 void host_mouse_send(report_mouse_t *report);
 
 #endif
diff --git a/keyboard.c b/keyboard.c
index cb1c745e2..1a025bd01 100644
--- a/keyboard.c
+++ b/keyboard.c
@@ -13,7 +13,7 @@
 #endif
 
 
-static uint8_t last_led = 0;
+static uint8_t last_leds = 0;
 
 
 void keyboard_init(void)
@@ -125,8 +125,13 @@ void keyboard_proc(void)
         ps2_mouse_usb_send();
 #endif
 
-    if (last_led != host_keyboard_led()) {
-        led_set(host_keyboard_led());
-        last_led = host_keyboard_led();
+    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);
+}
diff --git a/keyboard.h b/keyboard.h
index 5d269e963..01ec72a06 100644
--- a/keyboard.h
+++ b/keyboard.h
@@ -1,10 +1,11 @@
 #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
-
-
diff --git a/layer.c b/layer.c
index 7138c0ed1..0fe06a456 100644
--- a/layer.c
+++ b/layer.c
@@ -4,6 +4,7 @@
 #include "timer.h"
 #include "layer.h"
 
+
 /*
  * Parameters:
  *     ENTER_DELAY         |=======|
diff --git a/mousekey.c b/mousekey.c
index 2e9b8cb1a..0c1436b0c 100644
--- a/mousekey.c
+++ b/mousekey.c
@@ -24,11 +24,15 @@ static void mousekey_debug(void);
 #   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 = 10 + (mousekey_repeat);
-    return (unit > 127 ? 127 : unit);
+    uint16_t unit = 5 + mousekey_repeat*2;
+    return (unit > 63 ? 63 : unit);
 }
 
 void mousekey_decode(uint8_t code)
@@ -40,23 +44,18 @@ void mousekey_decode(uint8_t code)
     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 += 1;
     else if (code == KB_MS_WH_DOWN) report.v -= 1;
     else if (code == KB_MS_WH_LEFT) report.h -= 1;
     else if (code == KB_MS_WH_RIGHT)report.h += 1;
-*/
 }
 
 bool mousekey_changed(void)
 {
     return (report.buttons != report_prev.buttons ||
-            report.x != report_prev.x ||
-            report.y != report_prev.y ||
-            report.x || report.y);
-    //return (report.buttons != report_prev.buttons || report.x || report.y);
+            report.x || report.y || report.v || report.h);
 }
 
 void mousekey_send(void)
@@ -65,36 +64,30 @@ void mousekey_send(void)
 
     if (!mousekey_changed()) {
         mousekey_repeat = 0;
+        mousekey_clear_report();
         return;
     }
 
     // send immediately when buttun state is changed
     if (report.buttons == report_prev.buttons) {
-        // TODO: delay parameter setting
-        if ((timer_elapsed(last_timer) < (mousekey_repeat == 1 ? 20 : 5))) {
+        if (timer_elapsed(last_timer) < 5) {
+            mousekey_clear_report();
             return;
         }
     }
 
+    if (mousekey_repeat != 0xFF) {
+        mousekey_repeat++;
+    }
+
     if (report.x && report.y) {
         report.x *= 0.7;
         report.y *= 0.7;
     }
 
-    /*
-    print("mousekey_repeat: "); phex(mousekey_repeat); print("\n");
-    print("timer: "); phex16(timer_read()); print("\n");
-    print("last_timer: "); phex16(last_timer); print("\n");
-    print("mousekey: "); phex(report.buttons); print(" "); phex(report.x); print(" "); phex(report.y); print("\n");
-    */
-
     mousekey_debug();
-
     host_mouse_send(&report);
-    report_prev.buttons = report.buttons;
-    report_prev.x = report.x;
-    report_prev.y = report.y;
-    if (mousekey_repeat != 0xFF) mousekey_repeat++;
+    report_prev = report;
     last_timer = timer_read();
     mousekey_clear_report();
 }
@@ -104,6 +97,8 @@ 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)
@@ -113,9 +108,8 @@ static void mousekey_debug(void)
     phex(report.buttons); print("|");
     phex(report.x); print(" ");
     phex(report.y); print(" ");
-/*
     phex(report.v); print(" ");
     phex(report.h);
-*/
+    phex(mousekey_repeat);
     print("\n");
 }
diff --git a/pjrc/host.c b/pjrc/host.c
new file mode 100644
index 000000000..7247288bd
--- /dev/null
+++ b/pjrc/host.c
@@ -0,0 +1,135 @@
+#include <stdint.h>
+#include "usb_keycodes.h"
+#include "usb_keyboard.h"
+#include "usb_mouse.h"
+#include "debug.h"
+#include "host.h"
+
+
+#ifdef USB_NKRO_ENABLE
+bool keyboard_nkro = false;
+#endif
+
+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 add_key_bit(uint8_t code);
+
+
+uint8_t host_keyboard_leds(void)
+{
+    return usb_keyboard_leds;
+}
+
+/* keyboard report operations */
+void host_add_key(uint8_t key)
+{
+#ifdef USB_NKRO_ENABLE
+    if (keyboard_nkro) {
+        add_key_bit(key);
+        return;
+    }
+#endif
+    add_key_byte(key);
+}
+
+void host_add_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_swap_keyboard_report(void)
+{
+    report_keyboard_t *tmp = keyboard_report_prev;
+    keyboard_report_prev = keyboard_report;
+    keyboard_report = tmp;
+}
+
+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_keys(void)
+{
+    return keyboard_report->keys;
+}
+
+uint8_t host_get_mods(void)
+{
+    return keyboard_report->mods;
+}
+
+
+void host_send_keyboard_report(void)
+{
+    usb_keyboard_send_report(keyboard_report);
+}
+
+void host_mouse_send(report_mouse_t *report)
+{
+    usb_mouse_send(report->x, report->y, report->v, report->h, report->buttons);
+}
+
+
+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 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");
+    }
+}
diff --git a/pjrc/usb.c b/pjrc/usb.c
index 845b00bea..9fd30dee3 100755
--- a/pjrc/usb.c
+++ b/pjrc/usb.c
@@ -687,10 +687,10 @@ ISR(USB_GEN_vect)
                                 usb_keyboard_idle_count++;
                                 if (usb_keyboard_idle_count == usb_keyboard_idle_config) {
                                         usb_keyboard_idle_count = 0;
-                                        UEDATX = usb_keyboard_mods;
+                                        UEDATX = keyboard_report->mods;
                                         UEDATX = 0;
                                         for (i=0; i<6; i++) {
-                                                UEDATX = usb_keyboard_keys[i];
+                                                UEDATX = keyboard_report->keys[i];
                                         }
                                         UEINTX = 0x3A;
                                 }
@@ -873,10 +873,10 @@ ISR(USB_COM_vect)
                         if (bmRequestType == 0xA1) {
                                 if (bRequest == HID_GET_REPORT) {
                                         usb_wait_in_ready();
-                                        UEDATX = usb_keyboard_mods;
+                                        UEDATX = keyboard_report->mods;
                                         UEDATX = 0;
                                         for (i=0; i<6; i++) {
-                                                UEDATX = usb_keyboard_keys[i];
+                                                UEDATX = keyboard_report->keys[i];
                                         }
                                         usb_send_in();
                                         return;
diff --git a/pjrc/usb.h b/pjrc/usb.h
index ee72a1e39..4f0fd8f1e 100644
--- a/pjrc/usb.h
+++ b/pjrc/usb.h
@@ -14,8 +14,6 @@ uint8_t usb_configured(void);		// is the USB port configured
 void usb_remote_wakeup(void);
 
 
-
-
 #define EP_TYPE_CONTROL                 0x00
 #define EP_TYPE_BULK_IN                 0x81
 #define EP_TYPE_BULK_OUT                0x80
@@ -88,4 +86,23 @@ void usb_remote_wakeup(void);
 #define ENDPOINT_HALT                   0
 #define TEST_MODE                       2
 
+
+/*------------------------------------------------------------------*
+ * Keyboard descriptor setting
+ *------------------------------------------------------------------*/
+#define KBD_INTERFACE           0
+#define KBD_ENDPOINT            1
+#define KBD_SIZE                8
+#define KBD_BUFFER              EP_DOUBLE_BUFFER
+#define KBD_REPORT_KEYS         (KBD_SIZE - 2)
+
+// secondary keyboard
+#ifdef USB_NKRO_ENABLE
+#define KBD2_INTERFACE          4
+#define KBD2_ENDPOINT           5
+#define KBD2_SIZE               16
+#define KBD2_BUFFER             EP_DOUBLE_BUFFER
+#define KBD2_REPORT_KEYS        (KBD2_SIZE - 1)
+#endif
+
 #endif
diff --git a/pjrc/usb_keyboard.c b/pjrc/usb_keyboard.c
index 57e23d5fc..e29c5c9e9 100644
--- a/pjrc/usb_keyboard.c
+++ b/pjrc/usb_keyboard.c
@@ -5,14 +5,9 @@
 #include "print.h"
 #include "debug.h"
 #include "util.h"
+#include "host.h"
 
 
-// keyboard report.
-static usb_keyboard_report_t _report0 = { {0}, 0, false };
-static usb_keyboard_report_t _report1 = { {0}, 0, false };
-usb_keyboard_report_t *usb_keyboard_report = &_report0;
-usb_keyboard_report_t *usb_keyboard_report_prev = &_report1;
-
 // protocol setting from the host.  We use exactly the same report
 // either way, so this variable only stores the setting since we
 // are required to be able to report which setting is in use.
@@ -28,167 +23,42 @@ uint8_t usb_keyboard_idle_count=0;
 // 1=num lock, 2=caps lock, 4=scroll lock, 8=compose, 16=kana
 volatile uint8_t usb_keyboard_leds=0;
 
-// enable USB NKRO
-bool usb_keyboard_nkro = false;
 
+static inline int8_t send_report(report_keyboard_t *report, uint8_t endpoint, uint8_t keys_start, uint8_t keys_end);
 
-int8_t usb_keyboard_send(void)
-{
-    return usb_keyboard_send_report(usb_keyboard_report);
-}
 
-static inline int8_t _send_report(usb_keyboard_report_t *report, uint8_t endpoint, uint8_t keys_start, uint8_t keys_end);
-int8_t usb_keyboard_send_report(usb_keyboard_report_t *report)
+int8_t usb_keyboard_send_report(report_keyboard_t *report)
 {
     int8_t result = 0;
 
 #ifdef USB_NKRO_ENABLE
-    if (usb_keyboard_nkro)
-        result = _send_report(report, KBD2_ENDPOINT, 0, KBD2_REPORT_KEYS);
+    if (keyboard_nkro)
+        result = send_report(report, KBD2_ENDPOINT, 0, KBD2_REPORT_KEYS);
     else
 #endif
     {
         if (usb_keyboard_protocol)
-            result = _send_report(report, KBD_ENDPOINT, 0, KBD_REPORT_KEYS);
+            result = send_report(report, KBD_ENDPOINT, 0, KBD_REPORT_KEYS);
         else
-            result = _send_report(report, KBD_ENDPOINT, 0, 6);
+            result = send_report(report, KBD_ENDPOINT, 0, 6);
     }
 
     if (result) return result;
     usb_keyboard_idle_count = 0;
-    report->is_sent =true;
     usb_keyboard_print_report(report);
     return 0;
 }
 
-void usb_keyboard_swap_report(void) {
-    usb_keyboard_report_t *tmp = usb_keyboard_report_prev;
-    usb_keyboard_report_prev = usb_keyboard_report;
-    usb_keyboard_report = tmp;
-}
-
-void usb_keyboard_clear_report(void) {
-    usb_keyboard_clear_keys();
-    usb_keyboard_clear_mods();
-    usb_keyboard_report->is_sent = false;
-}
-
-void usb_keyboard_clear_keys(void) {
-    for (int i = 0; i < KEYS_MAX; i++) usb_keyboard_report->keys[i] = 0;
-}
-
-void usb_keyboard_clear_mods(void)
-{
-    usb_keyboard_report->mods = 0;
-}
-
-void usb_keyboard_set_keys(uint8_t *keys)
-{
-    for (int i = 0; i < KEYS_MAX; i++)
-        usb_keyboard_report->keys[i] = keys[i];
-}
-
-void usb_keyboard_set_mods(uint8_t mods)
-{
-    usb_keyboard_report->mods = mods;
-}
-
-void usb_keyboard_add_code(uint8_t code)
-{
-    if (IS_MOD(code)) {
-        usb_keyboard_add_mod(code);
-    } else {
-        usb_keyboard_add_key(code);
-    }
-}
-
-static inline void _add_key_byte(uint8_t code);
-static inline void _add_key_bit(uint8_t code);
-void usb_keyboard_add_key(uint8_t code)
-{
-#ifdef USB_NKRO_ENABLE
-    if (usb_keyboard_nkro) {
-        _add_key_bit(code);
-        return;
-    }
-#endif
-    _add_key_byte(code);
-}
-
-void usb_keyboard_add_mod(uint8_t code)
-{
-    usb_keyboard_report->mods |= MOD_BIT(code);
-}
-
-void usb_keyboard_del_code(uint8_t code)
-{
-    if (IS_MOD(code)) {
-        usb_keyboard_del_mod(code);
-    } else {
-        usb_keyboard_del_key(code);
-    }
-}
-
-void usb_keyboard_del_key(uint8_t code)
-{
-#ifdef USB_NKRO_ENABLE
-    if ((code>>3) < KEYS_MAX) {
-        usb_keyboard_keys[code>>3] &= ~(1<<(code&7));
-    }
-#else
-    for (int i = 0; i < KEYS_MAX; i++) {
-        if (usb_keyboard_report->keys[i] == code) {
-            usb_keyboard_report->keys[i] = KB_NO;
-            return;
-        }
-    }
-#endif
-}
-
-void usb_keyboard_del_mod(uint8_t code)
-{
-    usb_keyboard_report->mods &= ~MOD_BIT(code);
-}
-
-bool usb_keyboard_is_sent(void)
-{
-    return usb_keyboard_report->is_sent;
-}
-
-bool usb_keyboard_has_key(void)
-{
-    uint8_t keys = 0;    
-    for (int i = 0; i < KEYS_MAX; i++) keys |= usb_keyboard_report->keys[i];
-    return keys ? true : false;
-}
-
-bool usb_keyboard_has_mod(void)
-{
-    return usb_keyboard_report->mods ? true : false;
-}
-
-uint8_t usb_keyboard_get_key(void)
-{
-#ifdef USB_NKRO_ENABLE
-    if (usb_keyboard_nkro) {
-        uint8_t i = 0;
-        for (; i < KEYS_MAX && !usb_keyboard_keys[i]; i++);
-        return i<<3 | biton(usb_keyboard_keys[i]);
-    }
-#endif
-    return usb_keyboard_keys[0];
-}
-
-void usb_keyboard_print_report(usb_keyboard_report_t *report)
+void usb_keyboard_print_report(report_keyboard_t *report)
 {
     if (!debug_keyboard) return;
     print("keys: ");
-    for (int i = 0; i < KEYS_MAX; i++) { phex(report->keys[i]); print(" "); }
+    for (int i = 0; i < REPORT_KEYS; i++) { phex(report->keys[i]); print(" "); }
     print(" mods: "); phex(report->mods); print("\n");
 }
 
 
-static inline int8_t _send_report(usb_keyboard_report_t *report, uint8_t endpoint, uint8_t keys_start, uint8_t keys_end)
+static inline int8_t send_report(report_keyboard_t *report, uint8_t endpoint, uint8_t keys_start, uint8_t keys_end)
 {
     uint8_t intr_state, timeout;
 
@@ -211,7 +81,7 @@ static inline int8_t _send_report(usb_keyboard_report_t *report, uint8_t endpoin
             UENUM = endpoint;
     }
     UEDATX = report->mods;
-    if (!usb_keyboard_nkro)
+    if (!keyboard_nkro)
         UEDATX = 0;
     for (uint8_t i = keys_start; i < keys_end; i++) {
             UEDATX = report->keys[i];
@@ -220,34 +90,3 @@ static inline int8_t _send_report(usb_keyboard_report_t *report, uint8_t endpoin
     SREG = intr_state;
     return 0;
 }
-
-static inline void _add_key_byte(uint8_t code)
-{
-    // TODO: fix ugly code
-    int8_t i = 0;
-    int8_t empty = -1;
-    for (; i < KEYS_MAX; i++) {
-        if (usb_keyboard_keys_prev[i] == code) {
-            usb_keyboard_keys[i] = code;
-            break;
-        }
-        if (empty == -1 &&
-                usb_keyboard_keys_prev[i] == 0 &&
-                usb_keyboard_keys[i] == 0) {
-            empty = i;
-        }
-    }
-    if (i == KEYS_MAX) {
-        if (empty != -1) {
-            usb_keyboard_keys[empty] = code;
-        }
-    }
-}
-
-static inline void _add_key_bit(uint8_t code)
-{
-    if ((code>>3) < KEYS_MAX) {
-        usb_keyboard_keys[code>>3] |= 1<<(code&7);
-    }
-}
-
diff --git a/pjrc/usb_keyboard.h b/pjrc/usb_keyboard.h
index 53de4336d..22287a056 100644
--- a/pjrc/usb_keyboard.h
+++ b/pjrc/usb_keyboard.h
@@ -4,78 +4,16 @@
 #include <stdint.h>
 #include <stdbool.h>
 #include "usb.h"
+#include "host.h"
 
 
-#define KBD_INTERFACE           0
-#define KBD_ENDPOINT            1
-#define KBD_SIZE                8
-#define KBD_BUFFER              EP_DOUBLE_BUFFER
-#define KBD_REPORT_KEYS         (KBD_SIZE - 2)
-
-// secondary keyboard
-#ifdef USB_NKRO_ENABLE
-#define KBD2_INTERFACE          4
-#define KBD2_ENDPOINT           5
-#define KBD2_SIZE               16
-#define KBD2_BUFFER             EP_DOUBLE_BUFFER
-#define KBD2_REPORT_KEYS        (KBD2_SIZE - 1)
-#endif
-
-#if defined(KBD2_REPORT_KEYS) && KBD2_REPORT_KEYS > KBD_REPORT_KEYS
-#define KEYS_MAX KBD2_REPORT_KEYS
-#else
-#define KEYS_MAX KBD_REPORT_KEYS
-#endif
-
-
-typedef struct report {
-    uint8_t keys[KEYS_MAX];
-    uint8_t mods;
-    bool is_sent;
-} usb_keyboard_report_t;
-
-
-#define usb_keyboard_keys usb_keyboard_report->keys
-#define usb_keyboard_mods usb_keyboard_report->mods
-#define usb_keyboard_keys_prev usb_keyboard_report_prev->keys
-#define usb_keyboard_mods_prev usb_keyboard_report_prev->mods
-
-
-extern usb_keyboard_report_t *usb_keyboard_report;
-extern usb_keyboard_report_t *usb_keyboard_report_prev;
 extern uint8_t usb_keyboard_protocol;
 extern uint8_t usb_keyboard_idle_config;
 extern uint8_t usb_keyboard_idle_count;
 extern volatile uint8_t usb_keyboard_leds;
-extern bool usb_keyboard_nkro;
-
-
-int8_t usb_keyboard_send(void);
-int8_t usb_keyboard_send_report(usb_keyboard_report_t *report);
-
-void usb_keyboard_swap_report(void);
-
-void usb_keyboard_clear_report(void);
-void usb_keyboard_clear_keys(void);
-void usb_keyboard_clear_mods(void);
-
-void usb_keyboard_set_keys(uint8_t *keys);
-void usb_keyboard_set_mods(uint8_t mods);
-
-void usb_keyboard_add_code(uint8_t code);
-void usb_keyboard_add_key(uint8_t code);
-void usb_keyboard_add_mod(uint8_t code);
-
-void usb_keyboard_del_code(uint8_t code);
-void usb_keyboard_del_key(uint8_t code);
-void usb_keyboard_del_mod(uint8_t code);
-
-bool usb_keyboard_is_sent(void);
-bool usb_keyboard_has_key(void);
-bool usb_keyboard_has_mod(void);
 
-uint8_t usb_keyboard_get_key(void);
 
-void usb_keyboard_print_report(usb_keyboard_report_t *report);
+int8_t usb_keyboard_send_report(report_keyboard_t *report);
+void usb_keyboard_print_report(report_keyboard_t *report);
 
 #endif
diff --git a/ps2_vusb/Makefile b/ps2_vusb/Makefile
index e4872fb6d..406008d84 100644
--- a/ps2_vusb/Makefile
+++ b/ps2_vusb/Makefile
@@ -13,7 +13,6 @@ TARGET_SRC =	main.c \
                 matrix.c \
                 led.c \
                 ps2.c \
-                host_vusb.c \
                 usart_print.c
 
 OPT_DEFS = -DDEBUG_LEVEL=0
diff --git a/ps2_vusb/README b/ps2_vusb/README
new file mode 100644
index 000000000..7d4512a48
--- /dev/null
+++ b/ps2_vusb/README
@@ -0,0 +1,12 @@
+PS/2 to USB keyboard converter with V-USB
+=========================================
+2011/02/07
+
+NOT COMPLETED
+development was suspended.
+
+TODO:
+PS/2 library:   losts data from keyboard occasionally,
+                should use interrupt thoroughly for communication.
+
+Code cleaning:  merge code changed here to other subprojects and common modules.
diff --git a/ps2_vusb/config.h b/ps2_vusb/config.h
index b037bbe9c..858fe883f 100644
--- a/ps2_vusb/config.h
+++ b/ps2_vusb/config.h
@@ -11,8 +11,13 @@
 /* matrix size */
 #define MATRIX_ROWS 32  // keycode bit: 3-0
 #define MATRIX_COLS 8   // keycode bit: 6-4
-/* define if matrix has ghost */
-//#define MATRIX_HAS_GHOST
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (BIT_LSHIFT | BIT_RSHIFT) || \
+    keyboard_report->mods == (BIT_LCTRL | BIT_RSHIFT) \
+)
+
 
 /* USB NKey Rollover */
 #ifdef USB_NKRO_ENABLE
@@ -23,11 +28,6 @@
 #   define MOUSEKEY_DELAY_TIME 255
 #endif
 
-#define IS_COMMAND() ( \
-    keyboard_report->mods == (BIT_LSHIFT | BIT_RSHIFT) || \
-    keyboard_report->mods == (BIT_LCTRL | BIT_RSHIFT) \
-)
-
 
 /* PS/2 lines */
 #define PS2_CLOCK_PORT  PORTD
diff --git a/ps2_vusb/host_vusb.c b/vusb/host.c
index 8b89aa195..a32a1b17e 100644
--- a/ps2_vusb/host_vusb.c
+++ b/vusb/host.c
@@ -12,12 +12,12 @@ static report_keyboard_t report1;
 report_keyboard_t *keyboard_report = &report0;
 report_keyboard_t *keyboard_report_prev = &report1;
 
-static uint8_t keyboard_led = 0;
+static uint8_t keyboard_leds = 0;
 static uchar   idleRate = 0;
 
-uint8_t host_keyboard_led(void)
+uint8_t host_keyboard_leds(void)
 {
-    return keyboard_led;
+    return keyboard_leds;
 }
 
 
@@ -190,7 +190,7 @@ uchar usbFunctionWrite(uchar *data, uchar len)
     switch (last_req.kind) {
         case SET_LED:
             //debug("SET_LED\n");
-            keyboard_led = data[0];
+            keyboard_leds = data[0];
             last_req.len = 0;
             return 1;
             break;
diff --git a/ps2_vusb/host_vusb.h b/vusb/host_vusb.h
index f09ad5822..f09ad5822 100644
--- a/ps2_vusb/host_vusb.h
+++ b/vusb/host_vusb.h