form scroll completed

18 files changed, 461 insertions, 355 deletions

diff --git a/fw/fe310/eos/eve/Makefile b/fw/fe310/eos/eve/Makefile
index 43470d8..e55ef7a 100644
--- a/fw/fe310/eos/eve/Makefile
+++ b/fw/fe310/eos/eve/Makefile
@@ -2,7 +2,7 @@ include ../../common.mk
 
 CFLAGS += -I.. -I../../bsp/include
 
-obj = eve.o eve_platform.o eve_touch.o eve_vtrack.o eve_kbd.o eve_text.o eve_font.o clipb.o
+obj = eve.o eve_platform.o eve_touch.o eve_phy.o eve_vtrack.o eve_font.o eve_kbd.o eve_text.o clipb.o
 
 
 %.o: %.c %.h
diff --git a/fw/fe310/eos/eve/eve.h b/fw/fe310/eos/eve/eve.h
index 4056dd3..d813dce 100644
--- a/fw/fe310/eos/eve/eve.h
+++ b/fw/fe310/eos/eve/eve.h
@@ -2,6 +2,7 @@
 
 #include "eve_def.h"
 #include "eve_touch.h"
+#include "eve_phy.h"
 #include "eve_vtrack.h"
 #include "eve_platform.h"
 
diff --git a/fw/fe310/eos/eve/eve_kbd.c b/fw/fe310/eos/eve/eve_kbd.c
index 5dd4d5a..a664ef2 100644
--- a/fw/fe310/eos/eve/eve_kbd.c
+++ b/fw/fe310/eos/eve/eve_kbd.c
@@ -73,17 +73,15 @@ void eve_kbd_set_handler(EVEKbd *kbd, eve_kbd_input_handler_t putc, void *param)
     kbd->param = param;
 }
 
-int eve_kbd_touch(EVEKbd *kbd, uint8_t tag0, int touch_idx) {
-    EVETouch *t;
-    uint16_t evt;
+int eve_kbd_touch(EVEKbd *kbd, EVETouch *touch, uint16_t evt, uint8_t tag0) {
     int ret;
 
-    t = eve_touch_evt(tag0, touch_idx, 1, 126, &evt);
-    if (t && evt) {
-        ret = 1;
+    evt = eve_touch_evt(touch, evt, tag0, 1, 126);
+    if (touch && evt) {
+        int8_t touch_idx = eve_touch_get_idx(touch);
 
         if (evt & EVE_TOUCH_ETYPE_TAG) {
-            uint8_t _tag = t->tag;
+            uint8_t _tag = touch->tag;
 
             if (_tag >= TAG_SHIFT && _tag <= TAG_FN) {
                 if (touch_idx == 0) {
@@ -113,7 +111,7 @@ int eve_kbd_touch(EVEKbd *kbd, uint8_t tag0, int touch_idx) {
             }
         }
         if (evt & EVE_TOUCH_ETYPE_TAG_UP) {
-            uint8_t _tag = t->tag_up;
+            uint8_t _tag = touch->tag_up;
 
             if (_tag >= TAG_SHIFT && _tag <= TAG_FN) {
                 if (touch_idx == 0) {
@@ -132,6 +130,7 @@ int eve_kbd_touch(EVEKbd *kbd, uint8_t tag0, int touch_idx) {
                 }
             }
         }
+        ret = 1;
     } else {
         ret = 0;
     }
diff --git a/fw/fe310/eos/eve/eve_kbd.h b/fw/fe310/eos/eve/eve_kbd.h
index 7746472..b4f9874 100644
--- a/fw/fe310/eos/eve/eve_kbd.h
+++ b/fw/fe310/eos/eve/eve_kbd.h
@@ -19,5 +19,5 @@ typedef struct EVEKbd {
 void eve_kbd_init(EVEKbd *kbd, EVERect *g, uint32_t mem_addr, uint32_t *mem_next);
 void eve_kbd_close(EVEKbd *kbd);
 void eve_kbd_set_handler(EVEKbd *kbd, eve_kbd_input_handler_t putc, void *param);
-int eve_kbd_touch(EVEKbd *kbd, uint8_t tag0, int touch_idx);
+int eve_kbd_touch(EVEKbd *kbd, EVETouch *touch, uint16_t evt, uint8_t tag0);
 uint8_t eve_kbd_draw(EVEKbd *kbd);
diff --git a/fw/fe310/eos/eve/eve_phy.c b/fw/fe310/eos/eve/eve_phy.c
new file mode 100644
index 0000000..1e255fe
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_phy.c
@@ -0,0 +1,77 @@
+#include <stdlib.h>
+#include <math.h>
+
+#include "eve_platform.h"
+#include "eve_phy.h"
+
+/* Constant accelerator */
+void eve_phy_acc_init(EVEPhyAcc *param, int a) {
+    param->a = a;
+}
+
+void eve_phy_acc_start(EVEPhyAcc *param, int x0, int y0, int v0x, int v0y) {
+    double v0 = sqrt(v0x * v0x + v0y * v0y);
+
+    param->x0 = x0;
+    param->y0 = y0;
+    param->v0x = v0x;
+    param->v0y = v0y;
+    param->k = 2 * v0 / param->a * EVE_RTC_FREQ;
+}
+
+int eve_phy_acc_tick(EVEPhyAcc *param, int dt, int *x, int *y) {
+    int k = param->k;
+    int x0 = param->x0;
+    int y0 = param->y0;
+    int v0x = param->v0x;
+    int v0y = param->v0y;
+    int more = 1;
+
+    if ((k < 0) && (dt >= -k / 2)) {
+        dt = -k / 2;
+        more = 0;
+    }
+    if (x) *x = x0 + (v0x * dt + v0x * dt / k * dt) / (int)(EVE_RTC_FREQ);
+    if (y) *y = y0 + (v0y * dt + v0y * dt / k * dt) / (int)(EVE_RTC_FREQ);
+
+    return more;
+}
+
+/* Linear harmonic oscillator */
+void eve_phy_lho_init(EVEPhyLHO *param, int x, int y, uint32_t T, double d, uint32_t t_max) {
+    double f0 = 2 * M_PI / (T * EVE_RTC_FREQ / 1000);
+
+    if (d < 0) d = 0;
+    if (d > 1) d = 1;
+    param->x = x;
+    param->y = y;
+    param->f = f0 * sqrt(1 - d * d);
+    param->a = -d * f0;
+    param->t_max = t_max * EVE_RTC_FREQ / 1000;
+}
+
+int eve_phy_lho_start(EVEPhyLHO *param, int x0, int y0) {
+    param->x0 = x0;
+    param->y0 = y0;
+}
+
+int eve_phy_lho_tick(EVEPhyLHO *param, int dt, int *x, int *y) {
+    int ax = param->x0 - param->x;
+    int ay = param->y0 - param->y;
+    int more = 1;
+
+    if (param->t_max && (dt >= param->t_max)) {
+        dt = param->t_max;
+        more = 0;
+    }
+    if (param->a) {
+        double e = exp(param->a * dt);
+        ax = ax * e;
+        ay = ay * e;
+        if ((ax == 0) && (ay == 0)) more = 0;
+    }
+    if (x) *x = param->x + ax * cos(param->f * dt);
+    if (y) *y = param->y + ay * cos(param->f * dt);
+
+    return more;
+}
diff --git a/fw/fe310/eos/eve/eve_phy.h b/fw/fe310/eos/eve/eve_phy.h
new file mode 100644
index 0000000..1be5fd0
--- /dev/null
+++ b/fw/fe310/eos/eve/eve_phy.h
@@ -0,0 +1,28 @@
+#include <stdint.h>
+
+typedef struct EVEPhyAcc {
+    int a;
+    int k;
+    int x0;
+    int y0;
+    int v0x;
+    int v0y;
+} EVEPhyAcc;
+
+void eve_phy_acc_init(EVEPhyAcc *param, int a);
+void eve_phy_acc_start(EVEPhyAcc *param, int x0, int y0, int v0x, int v0y);
+int eve_phy_acc_tick(EVEPhyAcc *param, int dt, int *x, int *y);
+
+typedef struct EVEPhyLHO {
+    int x;
+    int y;
+    double f;
+    double a;
+    uint32_t t_max;
+    int x0;
+    int y0;
+} EVEPhyLHO;
+
+void eve_phy_lho_init(EVEPhyLHO *param, int x, int y, uint32_t T, double d, uint32_t t_max);
+int eve_phy_lho_start(EVEPhyLHO *param, int x0, int y0);
+int eve_phy_lho_tick(EVEPhyLHO *param, int dt, int *x, int *y);
\ No newline at end of file
diff --git a/fw/fe310/eos/eve/eve_text.c b/fw/fe310/eos/eve/eve_text.c
index d23d012..eecfa0a 100644
--- a/fw/fe310/eos/eve/eve_text.c
+++ b/fw/fe310/eos/eve/eve_text.c
@@ -119,18 +119,15 @@ void eve_text_scroll0(EVEText *box) {
     }
 }
 
-int eve_text_touch(EVEText *box, uint8_t tag0, int touch_idx) {
-    EVETouch *t;
-    uint16_t evt;
-
-    t = eve_touch_evt(tag0, touch_idx, box->tag, 1, &evt);
-    if (t && evt) {
+int eve_text_touch(EVEText *box, EVETouch *touch, uint16_t evt, uint8_t tag0) {
+    evt = eve_touch_evt(touch, evt, tag0, box->tag, 1);
+    if (touch && evt) {
         if ((evt & EVE_TOUCH_ETYPE_TRACK_START) && (box->line_top < 0)) {
             box->line_top = box->line0;
             box->line_top0 = box->line0;
         }
         if ((evt & EVE_TOUCH_ETYPE_TRACK) && (box->line_top0 >=0)) {
-            int line = LINE_IDX_ADD(box->line_top0, (t->y0 - t->y) / box->ch_h, box->line_size);
+            int line = LINE_IDX_ADD(box->line_top0, (touch->y0 - touch->y) / box->ch_h, box->line_size);
             if (LINE_IDX_LTE(line, box->line0, box->line_size, box->h)) {
                 box->line_top = line;
                 eve_text_update(box);
diff --git a/fw/fe310/eos/eve/eve_text.h b/fw/fe310/eos/eve/eve_text.h
index 8f1ed71..3b282c9 100644
--- a/fw/fe310/eos/eve/eve_text.h
+++ b/fw/fe310/eos/eve/eve_text.h
@@ -23,7 +23,7 @@ void eve_text_init(EVEText *box, EVERect *g, uint16_t w, uint16_t h, uint16_t li
 void eve_text_update(EVEText *box);
 void eve_text_scroll0(EVEText *box);
 
-int eve_text_touch(EVEText *box, uint8_t tag0, int touch_idx);
+int eve_text_touch(EVEText *box, EVETouch *touch, uint16_t evt, uint8_t tag0);
 uint8_t eve_text_draw(EVEText *box, uint8_t tag);
 
 void eve_text_putc(EVEText *box, int c);
diff --git a/fw/fe310/eos/eve/eve_touch.c b/fw/fe310/eos/eve/eve_touch.c
index 334dfa3..b5ca7fd 100644
--- a/fw/fe310/eos/eve/eve_touch.c
+++ b/fw/fe310/eos/eve/eve_touch.c
@@ -4,14 +4,6 @@
 
 #include "eve.h"
 
-#define EVE_THRESHOLD_X         5
-#define EVE_THRESHOLD_Y         5
-#define EVE_TRAVG               3
-
-#define EVE_NOTOUCH             0x80000000
-
-#define EVE_MAX_TOUCH           5
-
 static int _intr_mask = EVE_INT_TAG | EVE_INT_TOUCH;
 static int _multitouch;
 static uint8_t _tag0;
@@ -50,7 +42,6 @@ void eve_handle_touch(void) {
     int i;
     char touch_ex = 0;
     char int_ccomplete = 0;
-    uint8_t touch_last = 0;
     uint8_t flags;
 
     eve_spi_start();
@@ -61,44 +52,54 @@ void eve_handle_touch(void) {
         uint8_t touch_tag;
         uint32_t touch_xy;
         uint64_t now = 0;
+        uint16_t touch_evt = 0;
         EVETouch *touch = &_touch[i];
 
-        touch->evt = 0;
         touch_xy = i < 4 ? eve_read32(_reg_touch[i]) : (((uint32_t)eve_read16(REG_CTOUCH_TOUCH4_X) << 16) | eve_read16(REG_CTOUCH_TOUCH4_Y));
 
-        if (touch_xy != 0x80008000) {
+        if (touch_xy != EVE_NOTOUCH) {
             int16_t touch_x = touch_xy >> 16;
             int16_t touch_y = touch_xy & 0xffff;
             now = eve_time_get_tick();
-            if (touch->x == EVE_NOTOUCH) {
+            if (touch->eevt & EVE_TOUCH_EETYPE_NOTOUCH) {
                 uint16_t _evt = 0;
                 uint16_t _eevt = 0;
-                uint16_t _ttevt = eve_touch_timer_evt(i);
+                uint16_t _ttevt = eve_touch_timer_get_evt(touch);
 
                 if (_ttevt) {
-                    EVEVTrack *vtrack = eve_vtrack_get();
+                    touch->eevt &= ~EVE_TOUCH_EETYPE_NOTOUCH;
 
-                    if (_ttevt & EVE_TOUCH_ETYPE_TAP1) {
+                    if (_ttevt & EVE_TOUCH_ETYPE_TAP2) {
                         int dx = touch_x - touch->x0;
                         int dy = touch_y - touch->y0;
+
                         dx = dx < 0 ? -dx : dx;
                         dy = dy < 0 ? -dy : dy;
-                        if ((dx > EVE_THRESHOLD_X) || (dy > EVE_THRESHOLD_Y)) {
-                            touch->evt |= EVE_TOUCH_ETYPE_TAP1;
+                        if ((dx > EVE_TOUCH_THRESHOLD_X) || (dy > EVE_TOUCH_THRESHOLD_Y)) {
+                            touch_evt |= EVE_TOUCH_ETYPE_TAP1;
                         } else {
                             _evt |= EVE_TOUCH_ETYPE_TAP2;
                             _eevt |= EVE_TOUCH_EETYPE_TAP2;
                         }
-                    } else {
-                        touch->evt |= _ttevt;
+                    }
+                    if (_ttevt & EVE_TOUCH_ETYPE_TRACK) {
+                        EVEVTrack *vtrack = eve_vtrack_get();
+
+                        _eevt |= EVE_TOUCH_EETYPE_TRACK_ABORT;
+                        touch_evt |= (EVE_TOUCH_ETYPE_TRACK_STOP | EVE_TOUCH_ETYPE_TRACK_ABORT);
                         if (vtrack->stop) vtrack->stop(touch, vtrack->param);
                     }
-                    if (_touch_handler && touch->evt) {
-                        _touch_handler(_touch_handler_param, _touch_timer.tag0, i);
+                    if (_ttevt & EVE_TOUCH_ETYPE_TIMER) {
+                        _eevt |= EVE_TOUCH_EETYPE_TIMER_ABORT;
+                        touch_evt |= EVE_TOUCH_ETYPE_TIMER_ABORT;
+                    }
+
+                    eve_touch_timer_clear(touch);
+                    if (_touch_handler && touch_evt) {
+                        _touch_handler(_touch_timer.touch, touch_evt, _touch_timer.tag0, _touch_handler_param);
                     }
-                    eve_touch_timer_clear();
                 }
-                touch->evt = EVE_TOUCH_ETYPE_POINT | _evt;
+                touch_evt = EVE_TOUCH_ETYPE_POINT | _evt;
                 touch->eevt = _eevt;
                 touch->tag0 = 0;
                 touch->tag = 0;
@@ -115,8 +116,8 @@ void eve_handle_touch(void) {
                 int dt = now - touch->t;
                 int vx = ((int)touch_x - touch->x) * (int)(EVE_RTC_FREQ) / dt;
                 int vy = ((int)touch_y - touch->y) * (int)(EVE_RTC_FREQ) / dt;
-                touch->vx = touch->vx ? (vx + touch->vx * EVE_TRAVG) / (EVE_TRAVG + 1) : vx;
-                touch->vy = touch->vy ? (vy + touch->vy * EVE_TRAVG) / (EVE_TRAVG + 1) : vy;
+                touch->vx = touch->vx ? (vx + touch->vx * EVE_TOUCH_TRAVG) / (EVE_TOUCH_TRAVG + 1) : vx;
+                touch->vy = touch->vy ? (vy + touch->vy * EVE_TOUCH_TRAVG) / (EVE_TOUCH_TRAVG + 1) : vy;
                 touch->t = now;
             }
             touch->x = touch_x;
@@ -129,27 +130,27 @@ void eve_handle_touch(void) {
             touch_ex = 1;
         } else {
             touch_tag = 0;
-            if (touch->x != EVE_NOTOUCH) {
-                touch->evt |= EVE_TOUCH_ETYPE_POINT_UP;
-                if (eve_touch_timer_evt(i)) {
-                    _touch_timer.evt &= ~EVE_TOUCH_ETYPE_LPRESS;
-                    if (!_touch_timer.evt) eve_touch_timer_clear();
+            if (!(touch->eevt & EVE_TOUCH_EETYPE_NOTOUCH)) {
+                uint16_t _ttevt = eve_touch_timer_get_evt(touch);
+
+                touch_evt = EVE_TOUCH_ETYPE_POINT_UP;
+                touch->eevt |= EVE_TOUCH_EETYPE_NOTOUCH;
+                if (_ttevt & EVE_TOUCH_ETYPE_LPRESS) {
+                    eve_touch_timer_set_evt(touch, _ttevt & ~EVE_TOUCH_ETYPE_LPRESS);
                 }
                 if (touch->tracker.tag && touch->tracker.track) {
                     uint8_t opt = _tag_opt[touch->tracker.tag];
                     char track_ext = ((opt & EVE_TOUCH_OPT_TRACK_EXT_X) && (touch->eevt & EVE_TOUCH_EETYPE_TRACK_X)) ||
                                      ((opt & EVE_TOUCH_OPT_TRACK_EXT_Y) && (touch->eevt & EVE_TOUCH_EETYPE_TRACK_Y));
-                    if (!_touch_timer.evt && track_ext) {
+                    if (!eve_touch_timer_get_evt(NULL) && track_ext) {
                         EVEVTrack *vtrack = eve_vtrack_get();
 
-                        eve_touch_timer_set(_tag0, i, EVE_TOUCH_ETYPE_TRACK, EVE_TOUCH_TIMEOUT_TRACK);
+                        eve_touch_timer_set(touch, EVE_TOUCH_ETYPE_TRACK, _tag0, EVE_TOUCH_TIMEOUT_TRACK);
                         if (vtrack->start) vtrack->start(touch, vtrack->param);
                     } else {
-                        touch->evt |= EVE_TOUCH_ETYPE_TRACK_STOP;
+                        touch_evt |= EVE_TOUCH_ETYPE_TRACK_STOP;
                     }
                 }
-                touch->x = EVE_NOTOUCH;
-                touch->y = EVE_NOTOUCH;
             }
         }
         if (touch_tag != touch->tag) {
@@ -157,83 +158,79 @@ void eve_handle_touch(void) {
                 if (!_tag0) _tag0 = touch_tag;
                 if (!touch->tag0) {
                     touch->tag0 = touch_tag;
-                    if (_tag_opt[touch_tag] & EVE_TOUCH_OPT_TRACK_MASK) {
+                    if (_tag_opt[touch_tag] & (EVE_TOUCH_OPT_TRACK | EVE_TOUCH_OPT_TRACK_REG)) {
                         touch->tracker.tag = touch_tag;
                     }
                     if (touch->tracker.tag && !(_tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_XY)) {
+                        touch_evt |= EVE_TOUCH_ETYPE_TRACK_START;
                         touch->tracker.track = 1;
-                        touch->evt |= EVE_TOUCH_ETYPE_TRACK_START;
                         touch->t = now;
                     }
-                    if (!_touch_timer.evt && (_tag_opt[touch_tag] & EVE_TOUCH_OPT_TIMER_MASK)) {
+                    if (!eve_touch_timer_get_evt(NULL) && (_tag_opt[touch_tag] & (EVE_TOUCH_OPT_LPRESS | EVE_TOUCH_OPT_TAP2))) {
                         uint16_t _evt = 0;
 
                         if (_tag_opt[touch_tag] & EVE_TOUCH_OPT_LPRESS) _evt |= EVE_TOUCH_ETYPE_LPRESS;
-                        if (_tag_opt[touch_tag] & EVE_TOUCH_OPT_DTAP) _evt |= EVE_TOUCH_ETYPE_TAP1;
-                        eve_touch_timer_set(_tag0, i, _evt, EVE_TOUCH_TIMEOUT_TAP);
+                        if (_tag_opt[touch_tag] & EVE_TOUCH_OPT_TAP2) _evt |= EVE_TOUCH_ETYPE_TAP2;
+                        eve_touch_timer_set(touch, _evt, _tag0, EVE_TOUCH_TIMEOUT_TAP);
                     }
                 }
             }
             touch->tag_up = touch->tag;
-            if (touch->tag_up) touch->evt |= EVE_TOUCH_ETYPE_TAG_UP;
+            if (touch->tag_up) touch_evt |= EVE_TOUCH_ETYPE_TAG_UP;
             touch->tag = touch_tag;
-            if (touch->tag) touch->evt |= EVE_TOUCH_ETYPE_TAG;
+            if (touch->tag) touch_evt |= EVE_TOUCH_ETYPE_TAG;
         }
-        if (touch_xy != 0x80008000) {
+        if (touch_xy != EVE_NOTOUCH) {
+            uint16_t _ttevt = eve_touch_timer_get_evt(touch);
             int _track = touch->tracker.tag && !touch->tracker.track;
-            int _timer = eve_touch_timer_evt(i) & EVE_TOUCH_ETYPE_TIMER_MASK;
+            int _timer = _ttevt & (EVE_TOUCH_ETYPE_LPRESS | EVE_TOUCH_ETYPE_TAP2);
             if (_track || _timer) {
                 int dx = touch->x - touch->x0;
                 int dy = touch->y - touch->y0;
                 dx = dx < 0 ? -dx : dx;
                 dy = dy < 0 ? -dy : dy;
                 if (_track) {
-                    if ((dx > EVE_THRESHOLD_X) && !(_tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_X)) {
+                    if ((dx > EVE_TOUCH_THRESHOLD_X) && !(_tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_X)) {
                         touch->tracker.tag = 0;
                     }
-                    if ((dy > EVE_THRESHOLD_Y) && !(_tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_Y)) {
+                    if ((dy > EVE_TOUCH_THRESHOLD_Y) && !(_tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_Y)) {
                         touch->tracker.tag = 0;
                     }
-                    if (touch->tracker.tag && ((dx > EVE_THRESHOLD_X) || (dy > EVE_THRESHOLD_Y))) {
-                        if (dx > EVE_THRESHOLD_X) {
+                    if (touch->tracker.tag && ((dx > EVE_TOUCH_THRESHOLD_X) || (dy > EVE_TOUCH_THRESHOLD_Y))) {
+                        if (dx > EVE_TOUCH_THRESHOLD_X) {
                             touch->eevt |= touch->x > touch->x0 ? EVE_TOUCH_EETYPE_TRACK_RIGHT : EVE_TOUCH_EETYPE_TRACK_LEFT;
                         }
-                        if (dy > EVE_THRESHOLD_Y) {
+                        if (dy > EVE_TOUCH_THRESHOLD_Y) {
                             touch->eevt |= touch->y > touch->y0 ? EVE_TOUCH_EETYPE_TRACK_DOWN : EVE_TOUCH_EETYPE_TRACK_UP;
                         }
+                        touch_evt |= EVE_TOUCH_ETYPE_TRACK_START;
                         touch->tracker.track = 1;
-                        touch->evt |= EVE_TOUCH_ETYPE_TRACK_START;
                         touch->t = now;
                     }
                 }
-                if (_timer && ((dx > EVE_THRESHOLD_X) || (dy > EVE_THRESHOLD_Y))) {
+                if (_timer && ((dx > EVE_TOUCH_THRESHOLD_X) || (dy > EVE_TOUCH_THRESHOLD_Y))) {
+                    eve_touch_timer_set_evt(touch, _ttevt & ~(EVE_TOUCH_ETYPE_LPRESS | EVE_TOUCH_ETYPE_TAP2));
                     _timer = 0;
-                    _touch_timer.evt &= ~EVE_TOUCH_ETYPE_TIMER_MASK;
-                    if (!_touch_timer.evt) eve_touch_timer_clear();
                 }
             }
             if (touch->tracker.tag && touch->tracker.track) {
-                touch->evt |= _tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_MASK;
+                if (_tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK) touch_evt |= EVE_TOUCH_ETYPE_TRACK;
+                if (_tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_REG) touch_evt |= EVE_TOUCH_ETYPE_TRACK_REG;
             }
-            if (touch->evt & EVE_TOUCH_ETYPE_TRACK_REG) {
+            if (touch_evt & EVE_TOUCH_ETYPE_TRACK_REG) {
                 uint32_t touch_track = eve_read32(_reg_track[i]);
                 if (touch->tracker.tag == (touch_track & 0xff)) {
                     touch->tracker.val = touch_track >> 16;
                 } else {
-                    touch->evt &= ~EVE_TOUCH_ETYPE_TRACK_REG;
+                    touch_evt &= ~EVE_TOUCH_ETYPE_TRACK_REG;
                 }
             }
             if (touch->tracker.tag || _timer) int_ccomplete = 1;
         }
-        if (touch->evt) touch_last = i + 1;
-        if (!_multitouch) break;
-    }
-
-    for (i=0; i<touch_last; i++) {
-        EVETouch *touch = &_touch[i];
-        if (_touch_handler && touch->evt) {
-            _touch_handler(_touch_handler_param, _tag0, i);
+        if (_touch_handler && touch_evt) {
+            _touch_handler(touch, touch_evt, _tag0, _touch_handler_param);
         }
+        if (!_multitouch) break;
     }
 
     if (!touch_ex) {
@@ -256,41 +253,51 @@ void eve_handle_touch(void) {
 }
 
 void eve_handle_time(void) {
-    EVETouch *touch = &_touch[_touch_timer.idx];
-
-    if ((_touch_timer.evt & EVE_TOUCH_ETYPE_TAP1) && (touch->x != EVE_NOTOUCH)) _touch_timer.evt &= ~EVE_TOUCH_ETYPE_TAP1;
+    EVETouch *touch = _touch_timer.touch;
 
     if (_touch_timer.evt) {
         int more = 0;
-        int _x = touch->x;
-        int _y = touch->y;
-        EVEVTrack *vtrack = eve_vtrack_get();
+        uint16_t touch_evt = 0;
 
         eve_spi_start();
 
-        touch->evt = _touch_timer.evt;
-        if (touch->evt & EVE_TOUCH_ETYPE_LPRESS) {
-            touch->eevt |= EVE_TOUCH_EETYPE_LPRESS;
-        } else {
-            if (vtrack->tick) more = vtrack->tick(touch, vtrack->param);
-            if (more) {
-                eve_timer_set(EVE_TOUCH_TIMEOUT_TRACK);
-            } else if (vtrack->stop) {
-                vtrack->stop(touch, vtrack->param);
+        if (_touch_timer.evt & EVE_TOUCH_ETYPE_LPRESS) {
+            touch_evt |= EVE_TOUCH_ETYPE_LPRESS;
+            if (touch) touch->eevt |= EVE_TOUCH_EETYPE_LPRESS;
+        }
+        if (_touch_timer.evt & EVE_TOUCH_ETYPE_TAP2) {
+            touch_evt |= EVE_TOUCH_ETYPE_TAP1;
+            if (touch) touch->eevt |= EVE_TOUCH_EETYPE_TAP1;
+        }
+        if (_touch_timer.evt & EVE_TOUCH_ETYPE_TRACK) {
+            EVEVTrack *vtrack = eve_vtrack_get();
+
+            if (vtrack->tick) {
+                touch_evt |= EVE_TOUCH_ETYPE_TRACK;
+                more = vtrack->tick(touch, vtrack->param);
             }
+            if (!more) {
+                touch_evt |= EVE_TOUCH_ETYPE_TRACK_STOP;
+                if (vtrack->stop) vtrack->stop(touch, vtrack->param);
+            }
+        }
+        if (_touch_timer.evt & EVE_TOUCH_ETYPE_TIMER) {
+            touch_evt |= EVE_TOUCH_ETYPE_TIMER;
+            more = 1;
         }
 
-        if (_touch_handler) _touch_handler(_touch_handler_param, _touch_timer.tag0, _touch_timer.idx);
+        if (more) {
+            eve_timer_set(_touch_timer.to);
+        } else {
+            _touch_timer.evt = 0;
+        }
 
-        eve_spi_stop();
+        if (_touch_handler && touch_evt) {
+            _touch_handler(touch, touch_evt, _touch_timer.tag0, _touch_handler_param);
+        }
 
-        if (!more) eve_touch_timer_clear();
-        touch->x = _x;
-        touch->y = _y;
-    } else {
-        eve_touch_timer_clear();
+        eve_spi_stop();
     }
-
 }
 
 void eve_touch_init(void) {
@@ -300,9 +307,9 @@ void eve_touch_init(void) {
 
     for (i=0; i<EVE_MAX_TOUCH; i++) {
         EVETouch *touch = &_touch[i];
-        touch->x = EVE_NOTOUCH;
-        touch->y = EVE_NOTOUCH;
+        touch->eevt |= EVE_TOUCH_EETYPE_NOTOUCH;
     }
+
     eve_write8(REG_INT_MASK, _intr_mask);
     eve_write8(REG_INT_EN, 0x01);
     while(eve_read8(REG_INT_FLAGS));
@@ -317,42 +324,43 @@ EVETouch *eve_touch_get(int i) {
     return &_touch[i];
 }
 
-EVETouch *eve_touch_evt(uint8_t tag0, int touch_idx, uint8_t tag_min, uint8_t tag_n, uint16_t *evt) {
+int8_t eve_touch_get_idx(EVETouch *touch) {
+    if (touch == NULL) return -1;
+    return touch - _touch;
+}
+
+uint16_t eve_touch_evt(EVETouch *touch, uint16_t evt, uint8_t tag0, uint8_t tag_min, uint8_t tag_n) {
     int tag_max;
     uint8_t _tag;
     uint16_t _evt;
-    EVETouch *ret = NULL;
 
-    *evt = 0;
-
-    if ((touch_idx < 0) || (touch_idx > 4)) return ret;
-    if (tag_min == EVE_TAG_NOTAG) return ret;
+    if (tag_min == EVE_TAG_NOTAG) return 0;
 
     tag_max = tag_min + tag_n;
-    if ((tag0 < tag_min) || (tag0 >= tag_max)) return ret;
+    if ((tag0 < tag_min) || (tag0 >= tag_max)) return 0;
 
-    ret = &_touch[touch_idx];
-    _evt = ret->evt;
+    _evt = evt & (EVE_TOUCH_ETYPE_TIMER_MASK | EVE_TOUCH_ETYPE_USR_MASK);
+    if (touch == NULL) return _evt;
 
-    *evt |= _evt & EVE_TOUCH_ETYPE_POINT_MASK;
-    if (_evt & EVE_TOUCH_ETYPE_TAG) {
-        _tag = ret->tag;
-        if ((_tag >= tag_min) && (_tag < tag_max)) *evt |= EVE_TOUCH_ETYPE_TAG;
+    _evt |= evt & EVE_TOUCH_ETYPE_POINT_MASK;
+    if (evt & EVE_TOUCH_ETYPE_TAG) {
+        _tag = touch->tag;
+        if ((_tag >= tag_min) && (_tag < tag_max)) _evt |= EVE_TOUCH_ETYPE_TAG;
     }
-    if (_evt & EVE_TOUCH_ETYPE_TAG_UP) {
-        _tag = ret->tag_up;
-        if ((_tag >= tag_min) && (_tag < tag_max)) *evt |= EVE_TOUCH_ETYPE_TAG_UP;
+    if (evt & EVE_TOUCH_ETYPE_TAG_UP) {
+        _tag = touch->tag_up;
+        if ((_tag >= tag_min) && (_tag < tag_max)) _evt |= EVE_TOUCH_ETYPE_TAG_UP;
     }
-    if (_evt & EVE_TOUCH_ETYPE_TRACK_MASK) {
-        _tag = ret->tracker.tag;
-        if ((_tag >= tag_min) && (_tag < tag_max)) *evt |= _evt & EVE_TOUCH_ETYPE_TRACK_MASK;
+    if (evt & EVE_TOUCH_ETYPE_TRACK_MASK) {
+        _tag = touch->tracker.tag;
+        if ((_tag >= tag_min) && (_tag < tag_max)) _evt |= evt & EVE_TOUCH_ETYPE_TRACK_MASK;
     }
-    if (_evt & (EVE_TOUCH_ETYPE_LPRESS | EVE_TOUCH_ETYPE_TAP1 | EVE_TOUCH_ETYPE_TAP2)) {
-        _tag = ret->tag0;
-        if ((_tag >= tag_min) && (_tag < tag_max)) *evt |= _evt & (EVE_TOUCH_ETYPE_LPRESS | EVE_TOUCH_ETYPE_TAP1 | EVE_TOUCH_ETYPE_TAP2);
+    if (evt & (EVE_TOUCH_ETYPE_LPRESS | EVE_TOUCH_ETYPE_TAP1 | EVE_TOUCH_ETYPE_TAP2)) {
+        _tag = touch->tag0;
+        if ((_tag >= tag_min) && (_tag < tag_max)) _evt |= evt & (EVE_TOUCH_ETYPE_LPRESS | EVE_TOUCH_ETYPE_TAP1 | EVE_TOUCH_ETYPE_TAP2);
     }
 
-    return ret;
+    return _evt;
 }
 
 void eve_touch_set_opt(uint8_t tag, uint8_t opt) {
@@ -367,20 +375,44 @@ void eve_touch_clear_opt(void) {
     memset(_tag_opt, 0, sizeof(_tag_opt));
 }
 
-void eve_touch_timer_set(uint8_t tag0, int i, uint16_t evt, uint32_t to) {
-    _touch_timer.tag0 = tag0;
-    _touch_timer.idx = i;
+void eve_touch_timer_set(EVETouch *touch, uint16_t evt, uint8_t tag0, uint32_t to) {
+    _touch_timer.touch = touch;
     _touch_timer.evt = evt;
+    _touch_timer.tag0 = tag0;
+    _touch_timer.to = to;
     eve_timer_set(to);
 }
 
-void eve_touch_timer_clear(void) {
-    eve_timer_clear();
-    _touch_timer.evt = 0;
+void eve_touch_timer_clear(EVETouch *touch) {
+    eve_touch_timer_set_evt(touch, 0);
+}
+
+uint16_t eve_touch_timer_get_evt(EVETouch *touch) {
+    uint16_t ret = 0;
+
+    if ((touch == NULL) || (_touch_timer.touch == touch)) {
+        ret = _touch_timer.evt;
+    } else if (_touch_timer.touch == NULL) {
+        ret = _touch_timer.evt & EVE_TOUCH_ETYPE_TIMER;
+    }
+    return ret;
+}
+
+void eve_touch_timer_set_evt(EVETouch *touch, uint16_t evt) {
+    if (touch == _touch_timer.touch) {
+        _touch_timer.evt = evt;
+    } else if (_touch_timer.touch == NULL) {
+        _touch_timer.evt = evt & EVE_TOUCH_ETYPE_TIMER;
+    }
+    if (!_touch_timer.evt) eve_timer_clear();
+}
+
+void eve_touch_timer_start(uint8_t tag0, uint32_t to) {
+    eve_touch_timer_set(NULL, EVE_TOUCH_ETYPE_TIMER, tag0, to);
 }
 
-uint16_t eve_touch_timer_evt(int i) {
-    return (i ==  _touch_timer.idx) ? _touch_timer.evt : 0;
+void eve_touch_timer_stop(void) {
+    eve_touch_timer_clear(NULL);
 }
 
 EVETouchTimer *eve_touch_timer_get(void) {
diff --git a/fw/fe310/eos/eve/eve_touch.h b/fw/fe310/eos/eve/eve_touch.h
index 80d7f61..d4de196 100644
--- a/fw/fe310/eos/eve/eve_touch.h
+++ b/fw/fe310/eos/eve/eve_touch.h
@@ -3,54 +3,72 @@
 #define EVE_TOUCH_TIMEOUT_TAP           1000
 #define EVE_TOUCH_TIMEOUT_TRACK         20
 
+#define EVE_TOUCH_THRESHOLD_X           5
+#define EVE_TOUCH_THRESHOLD_Y           5
+#define EVE_TOUCH_TRAVG                 3
+
+#define EVE_NOTOUCH                     0x80008000
+#define EVE_MAX_TOUCH                   5
+
 /* events */
-#define EVE_TOUCH_ETYPE_TRACK           0x0001
-#define EVE_TOUCH_ETYPE_TRACK_REG       0x0002
-#define EVE_TOUCH_ETYPE_TRACK_START     0x0004
-#define EVE_TOUCH_ETYPE_TRACK_STOP      0x0008
-#define EVE_TOUCH_ETYPE_TAG             0x0010
-#define EVE_TOUCH_ETYPE_TAG_UP          0x0020
-#define EVE_TOUCH_ETYPE_POINT           0x0040
-#define EVE_TOUCH_ETYPE_POINT_UP        0x0080
-#define EVE_TOUCH_ETYPE_LPRESS          0x0100
-#define EVE_TOUCH_ETYPE_TAP1            0x0200
-#define EVE_TOUCH_ETYPE_TAP2            0x0400
-
-#define EVE_TOUCH_ETYPE_TAG_MASK        (EVE_TOUCH_ETYPE_TAG    | EVE_TOUCH_ETYPE_TAG_UP)
-#define EVE_TOUCH_ETYPE_TAP_MASK        (EVE_TOUCH_ETYPE_TAP1   | EVE_TOUCH_ETYPE_TAP2)
-#define EVE_TOUCH_ETYPE_TRACK_MASK      (EVE_TOUCH_ETYPE_TRACK  | EVE_TOUCH_ETYPE_TRACK_START | EVE_TOUCH_ETYPE_TRACK_STOP | EVE_TOUCH_ETYPE_TRACK_REG)
+#define EVE_TOUCH_ETYPE_TAG             0x0001
+#define EVE_TOUCH_ETYPE_TAG_UP          0x0002
+#define EVE_TOUCH_ETYPE_POINT           0x0004
+#define EVE_TOUCH_ETYPE_POINT_UP        0x0008
+#define EVE_TOUCH_ETYPE_TRACK           0x0010
+#define EVE_TOUCH_ETYPE_TRACK_START     0x0020
+#define EVE_TOUCH_ETYPE_TRACK_STOP      0x0040
+#define EVE_TOUCH_ETYPE_TRACK_ABORT     0x0080
+#define EVE_TOUCH_ETYPE_TIMER           0x0100
+#define EVE_TOUCH_ETYPE_TIMER_ABORT     0x0200
+#define EVE_TOUCH_ETYPE_TRACK_REG       0x0400
+#define EVE_TOUCH_ETYPE_LPRESS          0x0800
+#define EVE_TOUCH_ETYPE_TAP1            0x1000
+#define EVE_TOUCH_ETYPE_TAP2            0x2000
+#define EVE_TOUCH_ETYPE_USR             0x4000
+#define EVE_TOUCH_ETYPE_USR1            0x8000
+
+#define EVE_TOUCH_ETYPE_TRACK_MASK      (EVE_TOUCH_ETYPE_TRACK  | EVE_TOUCH_ETYPE_TRACK_START | EVE_TOUCH_ETYPE_TRACK_STOP | EVE_TOUCH_ETYPE_TRACK_ABORT | EVE_TOUCH_ETYPE_TRACK_REG)
+#define EVE_TOUCH_ETYPE_TIMER_MASK      (EVE_TOUCH_ETYPE_TIMER  | EVE_TOUCH_ETYPE_TIMER_ABORT)
 #define EVE_TOUCH_ETYPE_POINT_MASK      (EVE_TOUCH_ETYPE_POINT  | EVE_TOUCH_ETYPE_POINT_UP)
-#define EVE_TOUCH_ETYPE_TIMER_MASK      (EVE_TOUCH_OPT_LPRESS   | EVE_TOUCH_OPT_DTAP)
+#define EVE_TOUCH_ETYPE_USR_MASK        (EVE_TOUCH_ETYPE_USR    | EVE_TOUCH_ETYPE_USR1)
 
 /* extended events */
-#define EVE_TOUCH_EETYPE_LPRESS         0x0001
-#define EVE_TOUCH_EETYPE_TAP2           0x0002
+#define EVE_TOUCH_EETYPE_NOTOUCH        0x0001
+#define EVE_TOUCH_EETYPE_LPRESS         0x0002
+#define EVE_TOUCH_EETYPE_TAP1           0x0004
+#define EVE_TOUCH_EETYPE_TAP2           0x0008
 
-#define EVE_TOUCH_EETYPE_TRACK_LEFT     0x1000
-#define EVE_TOUCH_EETYPE_TRACK_RIGHT    0x2000
-#define EVE_TOUCH_EETYPE_TRACK_UP       0x4000
-#define EVE_TOUCH_EETYPE_TRACK_DOWN     0x8000
+#define EVE_TOUCH_EETYPE_TRACK_LEFT     0x0010
+#define EVE_TOUCH_EETYPE_TRACK_RIGHT    0x0020
+#define EVE_TOUCH_EETYPE_TRACK_UP       0x0040
+#define EVE_TOUCH_EETYPE_TRACK_DOWN     0x0080
+
+#define EVE_TOUCH_EETYPE_TRACK_ABORT    0x0100
+#define EVE_TOUCH_EETYPE_TIMER_ABORT    0x0200
+
+#define EVE_TOUCH_EETYPE_USR            0x1000
+#define EVE_TOUCH_EETYPE_USR1           0x2000
+#define EVE_TOUCH_EETYPE_USR2           0x4000
+#define EVE_TOUCH_EETYPE_USR3           0x8000
 
 #define EVE_TOUCH_EETYPE_TRACK_X        (EVE_TOUCH_EETYPE_TRACK_LEFT    | EVE_TOUCH_EETYPE_TRACK_RIGHT)
 #define EVE_TOUCH_EETYPE_TRACK_Y        (EVE_TOUCH_EETYPE_TRACK_UP      | EVE_TOUCH_EETYPE_TRACK_DOWN)
 #define EVE_TOUCH_EETYPE_TRACK_XY       (EVE_TOUCH_EETYPE_TRACK_X       | EVE_TOUCH_EETYPE_TRACK_Y)
+#define EVE_TOUCH_EETYPE_ABORT          (EVE_TOUCH_EETYPE_TRACK_ABORT   | EVE_TOUCH_EETYPE_TIMER_ABORT)
 
 /* tag options */
-#define EVE_TOUCH_OPT_TRACK             EVE_TOUCH_ETYPE_TRACK
-#define EVE_TOUCH_OPT_TRACK_REG         EVE_TOUCH_ETYPE_TRACK_REG
+#define EVE_TOUCH_OPT_TRACK             0x01
+#define EVE_TOUCH_OPT_TRACK_REG         0x02
 #define EVE_TOUCH_OPT_TRACK_X           0x04
 #define EVE_TOUCH_OPT_TRACK_Y           0x08
 #define EVE_TOUCH_OPT_TRACK_EXT_X       0x10
 #define EVE_TOUCH_OPT_TRACK_EXT_Y       0x20
 #define EVE_TOUCH_OPT_LPRESS            0x40
-#define EVE_TOUCH_OPT_DTAP              0x80
+#define EVE_TOUCH_OPT_TAP2              0x80
 
 #define EVE_TOUCH_OPT_TRACK_XY          (EVE_TOUCH_OPT_TRACK_X      | EVE_TOUCH_OPT_TRACK_Y)
 #define EVE_TOUCH_OPT_TRACK_EXT_XY      (EVE_TOUCH_OPT_TRACK_EXT_X  | EVE_TOUCH_OPT_TRACK_EXT_Y)
-#define EVE_TOUCH_OPT_TRACK_MASK        (EVE_TOUCH_OPT_TRACK        | EVE_TOUCH_OPT_TRACK_REG)
-#define EVE_TOUCH_OPT_TIMER_MASK        (EVE_TOUCH_OPT_LPRESS       | EVE_TOUCH_OPT_DTAP)
-
-typedef void (*eve_touch_handler_t) (void *, uint8_t, int);
 
 typedef struct EVETouch {
     int x;
@@ -60,7 +78,6 @@ typedef struct EVETouch {
     int x0;
     int y0;
     uint64_t t;
-    uint16_t evt;
     uint16_t eevt;
     uint8_t tag0;
     uint8_t tag;
@@ -73,24 +90,32 @@ typedef struct EVETouch {
 } EVETouch;
 
 typedef struct EVETouchTimer {
-    uint8_t tag0;
-    uint8_t idx;
+    EVETouch *touch;
+    uint32_t to;
     uint16_t evt;
+    uint8_t tag0;
 } EVETouchTimer;
 
+typedef void (*eve_touch_handler_t) (EVETouch *, uint16_t, uint8_t, void *);
+
 void eve_handle_touch(void);
 void eve_handle_time(void);
 
 void eve_touch_init(void);
 void eve_touch_set_handler(eve_touch_handler_t handler, void *handler_param);
 EVETouch *eve_touch_get(int i);
-EVETouch *eve_touch_evt(uint8_t tag0, int touch_idx, uint8_t tag_min, uint8_t tag_n, uint16_t *evt);
+int8_t eve_touch_get_idx(EVETouch *touch);
+uint16_t eve_touch_evt(EVETouch *touch, uint16_t evt, uint8_t tag0, uint8_t tag_min, uint8_t tag_n);
 
 void eve_touch_set_opt(uint8_t tag, uint8_t opt);
 uint8_t eve_touch_get_opt(uint8_t tag);
 void eve_touch_clear_opt(void);
 
-void eve_touch_timer_set(uint8_t tag0, int i, uint16_t evt, uint32_t to);
-void eve_touch_timer_clear(void);
-uint16_t eve_touch_timer_evt(int i);
+void eve_touch_timer_set(EVETouch *touch, uint16_t evt, uint8_t tag0, uint32_t to);
+void eve_touch_timer_clear(EVETouch *touch);
+uint16_t eve_touch_timer_get_evt(EVETouch *touch);
+void eve_touch_timer_set_evt(EVETouch *touch, uint16_t evt);
+void eve_touch_timer_start(uint8_t tag0, uint32_t to);
+void eve_touch_timer_stop(void);
+
 EVETouchTimer *eve_touch_timer_get(void);
diff --git a/fw/fe310/eos/eve/eve_vtrack.c b/fw/fe310/eos/eve/eve_vtrack.c
index bf65ec8..dfa8ba8 100644
--- a/fw/fe310/eos/eve/eve_vtrack.c
+++ b/fw/fe310/eos/eve/eve_vtrack.c
@@ -4,11 +4,11 @@
 #include "eve.h"
 
 static EVEVTrack _vtrack;
-static EVEVTrackInert _vtrack_inert;
+static EVEPhyAcc _vtrack_acc;
 
 void eve_vtrack_init(void) {
-    eve_vtrack_inert_init(&_vtrack_inert, EVE_VTRACK_FRICTION);
-    eve_vtrack_set(eve_vtrack_inert_start, eve_vtrack_inert_tick, eve_vtrack_inert_stop, &_vtrack_inert);
+    eve_phy_acc_init(&_vtrack_acc, -EVE_VTRACK_ACC_A);
+    eve_vtrack_reset();
 }
 
 EVEVTrack *eve_vtrack_get(void) {
@@ -23,110 +23,43 @@ void eve_vtrack_set(eve_vtrack_start_t start, eve_vtrack_tick_t tick, eve_vtrack
 }
 
 void eve_vtrack_reset(void) {
-    eve_vtrack_set(eve_vtrack_inert_start, eve_vtrack_inert_tick, eve_vtrack_inert_stop, &_vtrack_inert);
+    eve_vtrack_set(eve_vtrack_acc_start, eve_vtrack_acc_tick, NULL, &_vtrack_acc);
 }
 
-void eve_vtrack_start(uint8_t tag0, int i) {
-    EVETouch *touch = eve_touch_get(i);
-
-    eve_touch_timer_set(tag0, i, EVE_TOUCH_ETYPE_TRACK, EVE_TOUCH_TIMEOUT_TRACK);
+void eve_vtrack_start(EVETouch *touch, uint8_t tag0, uint32_t to) {
+    eve_touch_timer_set(touch, EVE_TOUCH_ETYPE_TRACK, tag0, to);
     if (_vtrack.start) _vtrack.start(touch, _vtrack.param);
 }
 
-void eve_vtrack_stop(void) {
-    eve_touch_timer_clear();
+void eve_vtrack_stop(EVETouch *touch) {
+    eve_touch_timer_clear(touch);
     eve_vtrack_reset();
 }
 
-
-EVEVTrackInert *eve_vtrack_inert_get_param(void) {
-    return &_vtrack_inert;
-}
-
-void eve_vtrack_inert_init(EVEVTrackInert *param, int fc) {
-    param->fc = fc;
+void eve_vtrack_acc_start(EVETouch *touch, void *p) {
+    EVEPhyAcc *param = (EVEPhyAcc *)p;
+    eve_phy_acc_start(param, touch->x, touch->y, touch->vx, touch->vy);
 }
 
-void eve_vtrack_inert_start(EVETouch *touch, void *p) {
-    EVEVTrackInert *param = (EVEVTrackInert *)p;
-    double d = sqrt(touch->vx * touch->vx + touch->vy * touch->vy);
+int eve_vtrack_acc_tick(EVETouch *touch, void *p) {
+    EVEPhyAcc *param = (EVEPhyAcc *)p;
 
-    param->x0 = touch->x;
-    param->y0 = touch->y;
-    param->f = (double)(EVE_RTC_FREQ) * d / param->fc;
+    return eve_phy_acc_tick(param, eve_time_get_tick() - touch->t, &touch->x, &touch->y);
 }
 
-int eve_vtrack_inert_tick(EVETouch *touch, void *p) {
-    EVEVTrackInert *param = (EVEVTrackInert *)p;
-    int dt = eve_time_get_tick() - touch->t;
-    int f = param->f;
-    int more = 1;
+void eve_vtrack_lho_start(EVETouch *touch, void *p) {
+    EVEPhyLHO *param = (EVEPhyLHO *)p;
 
-    if (dt >= f / 2) {
-        dt = f / 2;
-        more = 0;
-    }
-    touch->x = param->x0 + (touch->vx * dt - touch->vx * dt / f * dt) / (int)(EVE_RTC_FREQ);
-    touch->y = param->y0 + (touch->vy * dt - touch->vy * dt / f * dt) / (int)(EVE_RTC_FREQ);
-
-    return more;
-}
-
-void eve_vtrack_inert_stop(EVETouch *touch, void *p) {
-    touch->evt |= EVE_TOUCH_ETYPE_TRACK_STOP;
+    eve_phy_lho_start(param, touch->x, touch->y);
 }
 
+int eve_vtrack_lho_tick(EVETouch *touch, void *p) {
+    EVEPhyLHO *param = (EVEPhyLHO *)p;
 
-static EVEVTrackOsc _vtrack_osc;
-
-EVEVTrackOsc *eve_vtrack_osc_get_param(void) {
-    return &_vtrack_osc;
+    return eve_phy_lho_tick(param, eve_time_get_tick() - touch->t, &touch->x, &touch->y);
 }
 
-void eve_vtrack_osc_init(EVEVTrackOsc *param, int x, int y, uint32_t T, double d, uint32_t t_max) {
-    double f0 = 2 * M_PI / (T * EVE_RTC_FREQ / 1000);
-
-    if (d < 0) d = 0;
-    if (d > 1) d = 1;
-    param->x = x;
-    param->y = y;
-    param->f = d ? f0 * sqrt(1 - d * d) : f0;
-    param->d = d;
-    param->a = -d * f0;
-    param->t_max = t_max;
-}
-
-void eve_vtrack_osc_start(EVETouch *touch, void *p) {
-    EVEVTrackOsc *param = (EVEVTrackOsc *)p;
-
-    param->x0 = touch->x;
-    param->y0 = touch->y;
-}
-
-int eve_vtrack_osc_tick(EVETouch *touch, void *p) {
-    EVEVTrackOsc *param = (EVEVTrackOsc *)p;
-    int dt = eve_time_get_tick() - touch->t;
-    int ax = param->x0 - param->x;
-    int ay = param->y0 - param->y;
-    int more = 1;
-
-    if (param->t_max && (dt >= param->t_max)) {
-        dt = param->t_max;
-        more = 0;
-    }
-    if (param->d) {
-        double e = exp(param->a * dt);
-        ax = ax * e;
-        ay = ay * e;
-        if ((ax == 0) && (ay == 0)) more = 0;
-    }
-    touch->x = param->x + ax * cos(param->f * dt);
-    touch->y = param->y + ay * cos(param->f * dt);
-
-    return more;
-}
-
-void eve_vtrack_osc_stop(EVETouch *touch, void *p) {
-    touch->evt |= EVE_TOUCH_ETYPE_TRACK_STOP;
+void eve_vtrack_lho_stop(EVETouch *touch, void *p) {
     eve_vtrack_reset();
 }
+
diff --git a/fw/fe310/eos/eve/eve_vtrack.h b/fw/fe310/eos/eve/eve_vtrack.h
index 6bf8fa5..b75f673 100644
--- a/fw/fe310/eos/eve/eve_vtrack.h
+++ b/fw/fe310/eos/eve/eve_vtrack.h
@@ -1,6 +1,6 @@
 #include <stdint.h>
 
-#define EVE_VTRACK_FRICTION             500
+#define EVE_VTRACK_ACC_A        1000
 
 typedef void (*eve_vtrack_start_t) (EVETouch *, void *);
 typedef int  (*eve_vtrack_tick_t)  (EVETouch *, void *);
@@ -17,35 +17,12 @@ void eve_vtrack_init(void);
 EVEVTrack *eve_vtrack_get(void);
 void eve_vtrack_set(eve_vtrack_start_t start, eve_vtrack_tick_t tick, eve_vtrack_stop_t stop, void *param);
 void eve_vtrack_reset(void);
-void eve_vtrack_start(uint8_t tag0, int i);
-void eve_vtrack_stop(void);
+void eve_vtrack_start(EVETouch *touch, uint8_t tag0, uint32_t to);
+void eve_vtrack_stop(EVETouch *touch);
 
-typedef struct EVEVTrackInert {
-    int fc;
-    int f;
-    int x0;
-    int y0;
-} EVEVTrackInert;
+void eve_vtrack_acc_start(EVETouch *touch, void *p);
+int eve_vtrack_acc_tick(EVETouch *touch, void *p);
 
-EVEVTrackInert *eve_vtrack_inert_get_param(void);
-void eve_vtrack_inert_init(EVEVTrackInert *param, int fc);
-void eve_vtrack_inert_start(EVETouch *touch, void *p);
-int eve_vtrack_inert_tick(EVETouch *touch, void *p);
-void eve_vtrack_inert_stop(EVETouch *touch, void *p);
-
-typedef struct EVEVTrackOsc {
-    int x;
-    int y;
-    double f;
-    double d;
-    double a;
-    uint32_t t_max;
-    int x0;
-    int y0;
-} EVEVTrackOsc;
-
-EVEVTrackOsc *eve_vtrack_osc_get_param(void);
-void eve_vtrack_osc_init(EVEVTrackOsc *param, int x, int y, uint32_t T, double d, uint32_t t_max);
-void eve_vtrack_osc_start(EVETouch *touch, void *p);
-int eve_vtrack_osc_tick(EVETouch *touch, void *p);
-void eve_vtrack_osc_stop(EVETouch *touch, void *p);
+void eve_vtrack_lho_start(EVETouch *touch, void *p);
+int eve_vtrack_lho_tick(EVETouch *touch, void *p);
+void eve_vtrack_lho_stop(EVETouch *touch, void *p);
diff --git a/fw/fe310/eos/eve/screen/form.c b/fw/fe310/eos/eve/screen/form.c
index 32227c9..5d71d80 100644
--- a/fw/fe310/eos/eve/screen/form.c
+++ b/fw/fe310/eos/eve/screen/form.c
@@ -41,6 +41,7 @@ static void form_update_g(EVEForm *form, EVEWidget *_widget) {
         }
         widget->g.x = w;
         widget->g.y = h;
+        form->h = widget->g.y + widget->g.h;
 
         w += widget->g.w;
         _h = MAX(_h, widget->g.h);
@@ -49,35 +50,72 @@ static void form_update_g(EVEForm *form, EVEWidget *_widget) {
     }
 }
 
-static int form_handle_evt(EVEForm *form, EVEWidget *widget, EVETouch *touch, uint16_t evt) {
-    if (evt & EVE_TOUCH_ETYPE_TRACK_START) {
-        form->win_x0 = form->p.win_x;
-        form->win_y0 = form->p.win_y;
-        form->evt_lock = 1;
+static int form_handle_evt(EVEForm *form, EVEWidget *widget, EVETouch *touch, uint16_t evt, uint8_t tag0) {
+    int ret = 0;
+    EVEPage *page = &form->p;
+
+    if ((evt & EVE_TOUCH_ETYPE_POINT_UP) && !(touch->eevt & (EVE_TOUCH_EETYPE_TRACK_XY | EVE_TOUCH_EETYPE_ABORT))) {
+        if (page->widget_f) eve_page_set_focus(page, NULL, NULL);
+        ret = 1;
     }
-    if (evt & EVE_TOUCH_ETYPE_TRACK_STOP) {
-        form->evt_lock = 0;
+
+    /* Scroll start */
+    if ((evt & EVE_TOUCH_ETYPE_TRACK_START) && !(touch->eevt & EVE_TOUCH_EETYPE_ABORT)) {
+        form->evt_lock = 1;
     }
-    if ((evt & EVE_TOUCH_ETYPE_TRACK) && (touch->eevt & EVE_TOUCH_EETYPE_TRACK_Y)) {
-        form->p.win_y = form->win_y0 + touch->y0 - touch->y;
-        return 1;
+
+    /* Scroll stop */
+    if (((evt & EVE_TOUCH_ETYPE_TRACK_STOP) && !(evt & EVE_TOUCH_ETYPE_TRACK_ABORT)) ||
+        ((evt & EVE_TOUCH_ETYPE_POINT_UP) && (touch->eevt & EVE_TOUCH_EETYPE_ABORT) && !(touch->eevt & EVE_TOUCH_EETYPE_TRACK_XY))) {
+        int wmax_y;
+        EVERect vg;
+
+        eve_window_visible_g(page->v.window, &vg);
+        wmax_y = form->h > vg.h ? form->h - vg.h : 0;
+        if ((page->win_y < 0) || (page->win_y > wmax_y)) {
+            EVEPhyLHO *lho = &form->lho;
+            eve_phy_lho_init(lho, 0, page->win_y < 0 ? 0 : wmax_y, 1000, 0.5, 0);
+            eve_phy_lho_start(lho, 0, page->win_y);
+            form->lho_t0 = eve_time_get_tick();
+            eve_touch_timer_start(tag0, 20);
+        } else {
+            form->evt_lock = 0;
+            if (evt & EVE_TOUCH_ETYPE_TRACK_STOP) {
+                if (touch->eevt & EVE_TOUCH_EETYPE_TRACK_RIGHT) {
+                    eve_page_close((EVEPage *)form);
+                    return 1;
+                }
+                if (touch->eevt & EVE_TOUCH_EETYPE_TRACK_LEFT) {
+                    if (form->action) form->action(form);
+                    return 1;
+                }
+            }
+        }
     }
-    if (evt & EVE_TOUCH_ETYPE_POINT_UP) {
-        if ((touch->eevt & EVE_TOUCH_EETYPE_TRACK_XY) == 0) {
-            if (form->p.widget_f) eve_page_set_focus(&form->p, NULL, NULL);
-            return 1;
+
+    if (evt & EVE_TOUCH_ETYPE_TRACK_START) {
+        if (touch->eevt & EVE_TOUCH_EETYPE_TRACK_Y) {
+            form->win_y0 = page->win_y;
         }
-        if (touch->eevt & EVE_TOUCH_EETYPE_TRACK_RIGHT) {
-            eve_page_close((EVEPage *)form);
-            return 1;
+    }
+    if (evt & EVE_TOUCH_ETYPE_TRACK) {
+        if (touch->eevt & EVE_TOUCH_EETYPE_TRACK_Y) {
+            page->win_y = form->win_y0 + touch->y0 - touch->y;
         }
-        if (touch->eevt & EVE_TOUCH_EETYPE_TRACK_LEFT) {
-            form->action(form);
-            return 1;
+        ret = 1;
+    }
+    if (evt & EVE_TOUCH_ETYPE_TIMER) {
+        EVEPhyLHO *lho = &form->lho;
+        int more = eve_phy_lho_tick(lho, eve_time_get_tick() - form->lho_t0, NULL, &page->win_y);
+
+        if (!more) {
+            form->evt_lock = 0;
+            eve_touch_timer_stop();
         }
+        ret = 1;
     }
 
-    return 0;
+    return ret;
 }
 
 int eve_form_init(EVEForm *form, EVEWindow *window, EVEViewStack *stack, EVEWidget *widget, uint16_t widget_size, eve_form_action_t action, eve_form_destructor_t destructor) {
@@ -90,31 +128,29 @@ int eve_form_init(EVEForm *form, EVEWindow *window, EVEViewStack *stack, EVEWidg
     form_update_g(form, NULL);
 }
 
-int eve_form_touch(EVEView *v, uint8_t tag0, int touch_idx) {
-    EVEForm *form = (EVEForm *)v;
+int eve_form_touch(EVEView *view, EVETouch *touch, uint16_t evt, uint8_t tag0) {
+    EVEForm *form = (EVEForm *)view;
     EVEWidget *widget = form->widget;
-    EVETouch *t;
-    uint16_t evt;
-    int i, ret = 0;
+    int8_t touch_idx = eve_touch_get_idx(touch);
+    uint16_t _evt;
+    int i, ret;
 
     if (touch_idx > 0) return 0;
 
-    t = eve_touch_evt(tag0, touch_idx, form->p.v.window->tag, 1, &evt);
-    if (t && evt) {
-        ret = form_handle_evt(form, NULL, t, evt);
+    _evt = eve_touch_evt(touch, evt, tag0, form->p.v.window->tag, 1);
+    if (_evt) {
+        ret = form_handle_evt(form, NULL, touch, _evt, tag0);
         if (ret) return 1;
     }
     for (i=0; i<form->widget_size; i++) {
-        if (eve_page_rect_visible(&form->p, &widget->g)) {
-            t = eve_touch_evt(tag0, touch_idx, widget->tag0, widget->tagN - widget->tag0, &evt);
-            if (t && evt) {
-                if (!form->evt_lock) {
-                    ret = widget->touch(widget, &form->p, t, evt);
-                    if (ret) return 1;
-                }
-                ret = form_handle_evt(form, widget, t, evt);
+        _evt = eve_touch_evt(touch, evt, tag0, widget->tag0, widget->tagN - widget->tag0);
+        if (_evt) {
+            if (!form->evt_lock) {
+                ret = widget->touch(widget, &form->p, touch, _evt);
                 if (ret) return 1;
             }
+            ret = form_handle_evt(form, widget, touch, _evt, tag0);
+            if (ret) return 1;
         }
         widget = eve_widget_next(widget);
     }
@@ -122,8 +158,8 @@ int eve_form_touch(EVEView *v, uint8_t tag0, int touch_idx) {
     return 0;
 }
 
-uint8_t eve_form_draw(EVEView *v, uint8_t tag0) {
-    EVEForm *form = (EVEForm *)v;
+uint8_t eve_form_draw(EVEView *view, uint8_t tag0) {
+    EVEForm *form = (EVEForm *)view;
     EVEWidget *widget = form->widget;
     int i;
     uint8_t tagN = tag0;
@@ -133,7 +169,6 @@ uint8_t eve_form_draw(EVEView *v, uint8_t tag0) {
     eve_cmd_dl(VERTEX_FORMAT(0));
     eve_cmd_dl(VERTEX_TRANSLATE_X(eve_page_scr_x(&form->p, 0) * 16));
     eve_cmd_dl(VERTEX_TRANSLATE_Y(eve_page_scr_y(&form->p, 0) * 16));
-
     for (i=0; i<form->widget_size; i++) {
         if (widget->label && eve_page_rect_visible(&form->p, &widget->label->g)) {
             eve_cmd_dl(TAG_MASK(0));
@@ -153,7 +188,7 @@ uint8_t eve_form_draw(EVEView *v, uint8_t tag0) {
     for (i=tag0; i<tagN; i++) {
         eve_touch_set_opt(i, eve_touch_get_opt(i) | tag_opt);
     }
-    if (v->window->tag != EVE_TAG_NOTAG) eve_touch_set_opt(v->window->tag, eve_touch_get_opt(v->window->tag) | tag_opt);
+    if (view->window->tag != EVE_TAG_NOTAG) eve_touch_set_opt(view->window->tag, eve_touch_get_opt(view->window->tag) | tag_opt);
 
     return tagN;
 }
diff --git a/fw/fe310/eos/eve/screen/form.h b/fw/fe310/eos/eve/screen/form.h
index 68dfdca..51b56b0 100644
--- a/fw/fe310/eos/eve/screen/form.h
+++ b/fw/fe310/eos/eve/screen/form.h
@@ -11,15 +11,18 @@ typedef struct EVEForm {
     struct EVEWidget *widget;
     uint16_t widget_size;
     eve_form_action_t action;
-    int16_t win_x0;
-    int16_t win_y0;
+    int win_x0;
+    int win_y0;
+    uint16_t h;
     uint8_t evt_lock;
+    EVEPhyLHO lho;
+    uint64_t lho_t0;
 } EVEForm;
 
 int eve_form_init(EVEForm *form, EVEWindow *window, EVEViewStack *stack, struct EVEWidget *widget, uint16_t widget_size, eve_form_action_t action, eve_form_destructor_t destructor);
 
-int eve_form_touch(EVEView *v, uint8_t tag0, int touch_idx);
-uint8_t eve_form_draw(EVEView *v, uint8_t tag0);
+int eve_form_touch(EVEView *view, EVETouch *touch, uint16_t evt, uint8_t tag0);
+uint8_t eve_form_draw(EVEView *view, uint8_t tag0);
 
 void eve_form_update_g(EVEForm *form, struct EVEWidget *widget);
 int eve_form_handle_evt(EVEForm *form, struct EVEWidget *widget, EVETouch *touch, uint16_t evt);
diff --git a/fw/fe310/eos/eve/screen/page.h b/fw/fe310/eos/eve/screen/page.h
index ed558ba..c198d94 100644
--- a/fw/fe310/eos/eve/screen/page.h
+++ b/fw/fe310/eos/eve/screen/page.h
@@ -7,8 +7,8 @@ typedef void (*eve_page_destructor_t) (struct EVEPage *);
 
 typedef struct EVEPage {
     EVEView v;
-    int16_t win_x;
-    int16_t win_y;
+    int win_x;
+    int win_y;
     eve_page_destructor_t destructor;
     EVEViewStack *stack;
     struct EVEWidget *widget_f;
diff --git a/fw/fe310/eos/eve/screen/screen.c b/fw/fe310/eos/eve/screen/screen.c
index 1099515..25a1a76 100644
--- a/fw/fe310/eos/eve/screen/screen.c
+++ b/fw/fe310/eos/eve/screen/screen.c
@@ -88,23 +88,22 @@ void eve_screen_draw(EVEScreen *screen) {
     eve_cmd_exec(1);
 }
 
-void eve_screen_handle_touch(void *s, uint8_t tag0, int touch_idx) {
+void eve_screen_handle_touch(EVETouch *touch, uint16_t evt, uint8_t tag0, void *s) {
     EVEScreen *screen = s;
     EVEWindow *win;
     int h = 0;
 
-    eve_touch_clear_opt();
-
-    if (touch_idx >= 0) {
-        win = screen->win_tail;
-        while (win) {
-            if (eve_window_visible(win)) {
-                h = win->view->touch(win->view, tag0, touch_idx);
-                if (h) break;
-            }
-            win = win->prev;
+    win = screen->win_tail;
+    while (win) {
+        if (eve_window_visible(win)) {
+            h = win->view->touch(win->view, touch, evt, tag0);
+            if (h) break;
         }
+        win = win->prev;
     }
 
-    if (h) eve_screen_draw(screen);
+    if (h) {
+        eve_touch_clear_opt();
+        eve_screen_draw(screen);
+    }
 }
diff --git a/fw/fe310/eos/eve/screen/screen.h b/fw/fe310/eos/eve/screen/screen.h
index a9745ad..2f3f3ac 100644
--- a/fw/fe310/eos/eve/screen/screen.h
+++ b/fw/fe310/eos/eve/screen/screen.h
@@ -18,4 +18,4 @@ void eve_screen_show_kbd(EVEScreen *screen);
 void eve_screen_hide_kbd(EVEScreen *screen);
 
 void eve_screen_draw(EVEScreen *screen);
-void eve_screen_handle_touch(void *s, uint8_t tag0, int touch_idx);
+void eve_screen_handle_touch(EVETouch *touch, uint16_t evt, uint8_t tag0, void *s);
diff --git a/fw/fe310/eos/eve/screen/view.h b/fw/fe310/eos/eve/screen/view.h
index 3b635ef..6164a88 100644
--- a/fw/fe310/eos/eve/screen/view.h
+++ b/fw/fe310/eos/eve/screen/view.h
@@ -5,7 +5,7 @@
 struct EVEView;
 struct EVEViewStack;
 
-typedef int (*eve_view_touch_t) (struct EVEView *, uint8_t, int);
+typedef int (*eve_view_touch_t) (struct EVEView *, EVETouch *, uint16_t, uint8_t);
 typedef uint8_t (*eve_view_draw_t) (struct EVEView *, uint8_t);
 typedef void (*eve_view_constructor_t) (EVEWindow *window, struct EVEViewStack *);