diff options
Diffstat (limited to 'code/fe310/eos/eve/eve_touch.c')
| -rw-r--r-- | code/fe310/eos/eve/eve_touch.c | 364 |
1 files changed, 364 insertions, 0 deletions
diff --git a/code/fe310/eos/eve/eve_touch.c b/code/fe310/eos/eve/eve_touch.c new file mode 100644 index 0000000..76fd526 --- /dev/null +++ b/code/fe310/eos/eve/eve_touch.c @@ -0,0 +1,364 @@ +#include <stdlib.h> +#include <string.h> + +#include "eve.h" +#include "eve_platform.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 +#define EVE_TAG_SCREEN 0xff + +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 eve_touch_handler_t _touch_handler; +static void *_touch_handler_param; +static uint8_t _tag_opt[255]; + +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 +}; + +void eve_init_touch(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)); +} + +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 &= ~EVE_TOUCH_EVT_MASK; + 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) { + 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 { + touch->evt |= EVE_TOUCH_ETYPE_TAP2; + } + } + if (_touch_timer.evt & EVE_TOUCH_ETYPE_TRACK) { + EVETracker *tr= eve_track_get_tracker(); + if (tr->stop) tr->stop(&_touch_timer, touch); + } + if (_touch_handler && (touch->evt & EVE_TOUCH_EVT_MASK)) { + _touch_handler(_touch_handler_param, _touch_timer.tag, i); + } + _touch_timer_clear(); + } + touch->evt = EVE_TOUCH_ETYPE_POINT; + 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) { + if (!_touch_timer.tag && (_tag_opt[touch->tracker.tag] & EVE_TOUCH_OPT_TRACK_EXT)) { + EVETracker *tr= eve_track_get_tracker(); + _touch_timer_set(touch->tracker.tag, i, EVE_TOUCH_ETYPE_TRACK, touch->x, touch->y, EVE_TIMEOUT_TRACK); + if (tr->init) tr->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; + } else if (_tag_opt[EVE_TAG_SCREEN] & EVE_TOUCH_OPT_TRACK_MASK) { + touch->tracker.tag = EVE_TAG_SCREEN; + } + 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] | _tag_opt[EVE_TAG_SCREEN]) & EVE_TOUCH_OPT_TIMER_MASK)) { + uint8_t _tag = _tag_opt[touch_tag] & EVE_TOUCH_OPT_TIMER_MASK ? touch_tag : EVE_TAG_SCREEN; + uint16_t _evt = 0; + if (_tag_opt[_tag] & EVE_TOUCH_OPT_LPRESS) _evt |= EVE_TOUCH_ETYPE_LPRESS; + if (_tag_opt[_tag] & EVE_TOUCH_OPT_DTAP) _evt |= EVE_TOUCH_ETYPE_TAP1; + _touch_timer_set(_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->evt |= touch->x > touch->x0 ? EVE_TOUCH_ETYPE_TRACK_RIGHT : EVE_TOUCH_ETYPE_TRACK_LEFT; + } + if (dy > EVE_THRESHOLD_Y) { + touch->evt |= touch->y > touch->y0 ? EVE_TOUCH_ETYPE_TRACK_DOWN : EVE_TOUCH_ETYPE_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 & EVE_TOUCH_EVT_MASK) 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 & EVE_TOUCH_EVT_MASK)) { + _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 &= ~EVE_TOUCH_EVT_MASK; + touch->evt |= _touch_timer.evt; + if (touch->evt & EVE_TOUCH_ETYPE_TRACK) { + EVETracker *tr= eve_track_get_tracker(); + if (tr->tick) more = tr->tick(&_touch_timer, touch); + if (more) { + eve_timer_set(EVE_TIMEOUT_TRACK); + } else if (tr->stop) { + tr->stop(&_touch_timer, touch); + } + } + + _touch_handler(_touch_handler_param, _touch_timer.tag, _touch_timer.idx); + + if (!more) _touch_timer_clear(); + touch->x = _x; + touch->y = _y; + } + } +} + +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_max, uint16_t *evt) { + uint8_t _tag; + uint16_t _evt; + EVETouch *ret = NULL; + + *evt = 0; + if ((touch_idx < 0) || (touch_idx > 4)) return ret; + if ((tag_min == 0) || (tag_max == 0)) return ret; + 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 | EVE_TOUCH_ETYPE_TRACK_XY); + } + 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; +} |