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#include <stdlib.h>
#include <string.h>
#include "eve.h"
#define EVE_THRESHOLD_X 5
#define EVE_THRESHOLD_Y 5
#define EVE_TIMEOUT_TAP 1000
#define EVE_TIMEOUT_TRACK 20
#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;
static EVETouch _touch[EVE_MAX_TOUCH];
static EVETouchTimer _touch_timer;
static EVEExtTracker _ext_tracker;
static eve_touch_handler_t _touch_handler;
static void *_touch_handler_param;
static uint8_t _tag_opt[256];
static const uint32_t _reg_touch[] = {
REG_CTOUCH_TOUCH0_XY,
REG_CTOUCH_TOUCH1_XY,
REG_CTOUCH_TOUCH2_XY,
REG_CTOUCH_TOUCH3_XY
};
static const uint32_t _reg_tag[] = {
REG_TOUCH_TAG,
REG_TOUCH_TAG1,
REG_TOUCH_TAG2,
REG_TOUCH_TAG3,
REG_TOUCH_TAG4
};
static const uint32_t _reg_track[] = {
REG_TRACKER,
REG_TRACKER_1,
REG_TRACKER_2,
REG_TRACKER_3,
REG_TRACKER_4
};
static void _touch_timer_set(uint8_t tag, uint8_t idx, uint16_t evt, int x0, int y0, uint32_t to) {
_touch_timer.tag = tag;
_touch_timer.idx = idx;
_touch_timer.evt = evt;
_touch_timer.x0 = x0;
_touch_timer.y0 = y0;
eve_timer_set(to);
}
static void _touch_timer_clear(void) {
eve_timer_clear();
_touch_timer.tag = 0;
_touch_timer.evt = 0;
}
void eve_handle_touch(void) {
int i;
char touch_ex = 0;
char int_ccomplete = 0;
uint8_t tag0 = _tag0;
uint8_t touch_last = 0;
uint8_t flags = eve_read8(REG_INT_FLAGS) & _intr_mask;
if (!_multitouch && (flags & EVE_INT_TOUCH)) _multitouch = 1;
for (i=0; i<EVE_MAX_TOUCH; i++) {
uint8_t touch_tag;
uint32_t touch_xy;
uint64_t now = 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) {
int16_t touch_x = touch_xy >> 16;
int16_t touch_y = touch_xy & 0xffff;
now = eve_time_get_tick();
if (touch->x == EVE_NOTOUCH) {
uint16_t _evt = 0;
uint16_t _eevt = 0;
if (!_tag0 && _touch_timer.tag) {
if (_touch_timer.evt & EVE_TOUCH_ETYPE_TAP1) {
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;
} else {
_evt |= EVE_TOUCH_ETYPE_TAP2;
_eevt |= EVE_TOUCH_EETYPE_TAP2;
}
}
if (_touch_timer.evt & EVE_TOUCH_ETYPE_TRACK) {
touch->evt |= EVE_TOUCH_ETYPE_TRACK_STOP;
if (_ext_tracker.stop) _ext_tracker.stop(&_touch_timer, touch);
}
if (_touch_handler && touch->evt) {
_touch_handler(_touch_handler_param, _touch_timer.tag, i);
}
_touch_timer_clear();
}
touch->evt = EVE_TOUCH_ETYPE_POINT | _evt;
touch->eevt = _eevt;
touch->tag0 = 0;
touch->tag = 0;
touch->tag_up = 0;
touch->tracker.tag = 0;
touch->tracker.track = 0;
touch->tracker.val = 0;
touch->t = 0;
touch->vx = 0;
touch->vy = 0;
touch->x0 = touch_x;
touch->y0 = touch_y;
} else if (touch->t) {
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->t = now;
}
touch->x = touch_x;
touch->y = touch_y;
if (_multitouch || (flags & EVE_INT_TAG)) {
touch_tag = eve_read8(_reg_tag[i]);
} else {
touch_tag = touch->tag;
}
touch_ex = 1;
} else {
touch_tag = 0;
if (touch->x != EVE_NOTOUCH) {
touch->evt |= EVE_TOUCH_ETYPE_POINT_UP;
if (_touch_timer.tag && (i == 0)) {
_touch_timer.evt &= ~EVE_TOUCH_ETYPE_LPRESS;
if (!_touch_timer.evt) _touch_timer_clear();
}
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.tag && track_ext) {
_touch_timer_set(touch->tracker.tag, i, EVE_TOUCH_ETYPE_TRACK, touch->x, touch->y, EVE_TIMEOUT_TRACK);
if (_ext_tracker.init) _ext_tracker.init(&_touch_timer, touch);
} else {
touch->evt |= EVE_TOUCH_ETYPE_TRACK_STOP;
}
}
touch->x = EVE_NOTOUCH;
touch->y = EVE_NOTOUCH;
}
}
if (touch_tag != touch->tag) {
if (touch_tag) {
if (!touch->tag0) {
touch->tag0 = touch_tag;
if (_tag_opt[touch_tag] & EVE_TOUCH_OPT_TRACK_MASK) {
touch->tracker.tag = touch_tag;
}
if (touch->tracker.tag && !(_tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_XY)) {
touch->tracker.track = 1;
touch->evt |= EVE_TOUCH_ETYPE_TRACK_START;
touch->t = now;
}
if (!_tag0 && (_tag_opt[touch_tag] & EVE_TOUCH_OPT_TIMER_MASK)) {
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;
_touch_timer_set(touch_tag, 0, _evt, 0, 0, EVE_TIMEOUT_TAP);
}
}
if (!_tag0) _tag0 = tag0 = touch_tag;
}
touch->tag_up = touch->tag;
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_xy != 0x80008000) {
char _track = touch->tracker.tag && !touch->tracker.track;
char _timer = _touch_timer.tag && (_touch_timer.evt & EVE_TOUCH_ETYPE_TIMER_MASK) && (i == 0);
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)) {
touch->tracker.tag = 0;
}
if ((dy > EVE_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) {
touch->eevt |= touch->x > touch->x0 ? EVE_TOUCH_EETYPE_TRACK_RIGHT : EVE_TOUCH_EETYPE_TRACK_LEFT;
}
if (dy > EVE_THRESHOLD_Y) {
touch->eevt |= touch->y > touch->y0 ? EVE_TOUCH_EETYPE_TRACK_DOWN : EVE_TOUCH_EETYPE_TRACK_UP;
}
touch->tracker.track = 1;
touch->evt |= EVE_TOUCH_ETYPE_TRACK_START;
touch->t = now;
}
}
if (_timer && ((dx > EVE_THRESHOLD_X) || (dy > EVE_THRESHOLD_Y))) {
_touch_timer.evt &= ~EVE_TOUCH_ETYPE_TIMER_MASK;
if (!_touch_timer.evt) _touch_timer_clear();
}
}
if (touch->tracker.tag && touch->tracker.track) {
touch->evt |= _tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_MASK;
}
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;
}
}
if (touch->tracker.tag || _touch_timer.tag) int_ccomplete = 1;
}
if (touch->evt) touch_last = i + 1;
if (!_multitouch) break;
}
if (!touch_ex) {
_tag0 = 0;
_multitouch = 0;
}
if (_multitouch) int_ccomplete = 1;
if (int_ccomplete && !(_intr_mask & EVE_INT_CONVCOMPLETE)) {
_intr_mask |= EVE_INT_CONVCOMPLETE;
eve_write8(REG_INT_MASK, _intr_mask);
}
if (!int_ccomplete && (_intr_mask & EVE_INT_CONVCOMPLETE)) {
_intr_mask &= ~EVE_INT_CONVCOMPLETE;
eve_write8(REG_INT_MASK, _intr_mask);
}
for (i=0; i<touch_last; i++) {
EVETouch *touch = &_touch[i];
if (_touch_handler && touch->evt) {
_touch_handler(_touch_handler_param, tag0, i);
}
}
}
void eve_handle_time(void) {
if (_touch_handler && _touch_timer.tag) {
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;
if (_touch_timer.evt) {
int more = 0;
int _x = touch->x;
int _y = touch->y;
touch->evt = _touch_timer.evt;
if (touch->evt & EVE_TOUCH_ETYPE_TRACK) {
if (_ext_tracker.tick) more = _ext_tracker.tick(&_touch_timer, touch);
if (more) {
eve_timer_set(EVE_TIMEOUT_TRACK);
} else {
touch->evt |= EVE_TOUCH_ETYPE_TRACK_STOP;
if (_ext_tracker.stop) _ext_tracker.stop(&_touch_timer, touch);
}
} else if (touch->evt & EVE_TOUCH_ETYPE_LPRESS) {
touch->eevt |= EVE_TOUCH_EETYPE_LPRESS;
}
_touch_handler(_touch_handler_param, _touch_timer.tag, _touch_timer.idx);
if (!more) _touch_timer_clear();
touch->x = _x;
touch->y = _y;
} else {
_touch_timer_clear();
}
}
}
void eve_touch_init(void) {
int i;
for (i=0; i<EVE_MAX_TOUCH; i++) {
EVETouch *touch = &_touch[i];
touch->x = EVE_NOTOUCH;
touch->y = EVE_NOTOUCH;
}
eve_write8(REG_INT_MASK, _intr_mask);
eve_write8(REG_INT_EN, 0x01);
while(eve_read8(REG_INT_FLAGS));
}
void eve_touch_set_handler(eve_touch_handler_t handler, void *param) {
_touch_handler = handler;
_touch_handler_param = param;
}
EVETouch *eve_touch_evt(uint8_t tag0, int touch_idx, uint8_t tag_min, uint8_t tag_n, uint16_t *evt) {
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;
tag_max = tag_min + tag_n;
if ((tag0 < tag_min) || (tag0 >= tag_max)) return ret;
ret = &_touch[touch_idx];
_evt = ret->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;
}
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_TRACK_REG) {
_tag = ret->tracker.tag;
if ((_tag >= tag_min) && (_tag < tag_max)) *evt |= EVE_TOUCH_ETYPE_TRACK_REG;
}
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_LPRESS | EVE_TOUCH_ETYPE_TAP1 | EVE_TOUCH_ETYPE_TAP2)) {
_tag = _touch_timer.tag;
if ((_tag >= tag_min) && (_tag < tag_max)) *evt |= _evt & (EVE_TOUCH_ETYPE_LPRESS | EVE_TOUCH_ETYPE_TAP1 | EVE_TOUCH_ETYPE_TAP2);
}
return ret;
}
void eve_touch_set_opt(uint8_t tag, uint8_t opt) {
_tag_opt[tag] = opt;
}
uint8_t eve_touch_get_opt(uint8_t tag) {
return _tag_opt[tag];
}
void eve_touch_clear_opt(void) {
memset(_tag_opt, 0, sizeof(_tag_opt));
}
EVETouchTimer *eve_touch_get_timer(void) {
return &_touch_timer;
}
void eve_etrack_set(eve_etrack_init_t init, eve_etrack_tick_t tick, eve_etrack_stop_t stop, void *param) {
_ext_tracker.init = init;
_ext_tracker.tick = tick;
_ext_tracker.stop = stop;
_touch_timer.p = param;
}
void eve_etrack_start(int i) {
EVETouch *touch = &_touch[i];
_touch_timer_set(touch->tracker.tag, i, EVE_TOUCH_ETYPE_TRACK, touch->x, touch->y, EVE_TIMEOUT_TRACK);
if (_ext_tracker.init) _ext_tracker.init(&_touch_timer, touch);
}
void eve_etrack_stop(void) {
if (_ext_tracker.stop) {
EVETouch *touch = &_touch[_touch_timer.idx];
touch->evt = EVE_TOUCH_ETYPE_TRACK_STOP;
_ext_tracker.stop(&_touch_timer, touch);
}
_touch_timer_clear();
}
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