/* $OpenBSD: wstpad.c,v 1.31 2022/06/09 22:17:18 bru Exp $ */ /* * Copyright (c) 2015, 2016 Ulf Brosziewski * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* * touchpad input processing */ #include #include #include #include #include #include #include #include #include #include #include #define BTNMASK(n) ((n) > 0 && (n) <= 32 ? 1 << ((n) - 1) : 0) #define LEFTBTN BTNMASK(1) #define MIDDLEBTN BTNMASK(2) #define RIGHTBTN BTNMASK(3) #define PRIMARYBTN LEFTBTN #define PRIMARYBTN_CLICKED(tp) ((tp)->btns_sync & PRIMARYBTN & (tp)->btns) #define PRIMARYBTN_RELEASED(tp) ((tp)->btns_sync & PRIMARYBTN & ~(tp)->btns) #define IS_MT(tp) ((tp)->features & WSTPAD_MT) #define DISABLE(tp) ((tp)->features & WSTPAD_DISABLE) /* * Ratios to the height or width of the touchpad surface, in * [*.12] fixed-point format: */ #define V_EDGE_RATIO_DEFAULT 205 #define B_EDGE_RATIO_DEFAULT 410 #define T_EDGE_RATIO_DEFAULT 512 #define CENTER_RATIO_DEFAULT 512 #define TAP_MAXTIME_DEFAULT 180 #define TAP_CLICKTIME_DEFAULT 180 #define TAP_LOCKTIME_DEFAULT 0 #define TAP_BTNMAP_SIZE 3 #define CLICKDELAY_MS 20 #define FREEZE_MS 100 #define MATCHINTERVAL_MS 45 #define STOPINTERVAL_MS 55 #define MAG_LOW (10 << 12) #define MAG_MEDIUM (18 << 12) enum tpad_handlers { SOFTBUTTON_HDLR, TOPBUTTON_HDLR, TAP_HDLR, F2SCROLL_HDLR, EDGESCROLL_HDLR, CLICK_HDLR, }; enum tap_state { TAP_DETECT, TAP_IGNORE, TAP_LIFTED, TAP_LOCKED, TAP_LOCKED_DRAG, }; enum tpad_cmd { CLEAR_MOTION_DELTAS, SOFTBUTTON_DOWN, SOFTBUTTON_UP, TAPBUTTON_SYNC, TAPBUTTON_DOWN, TAPBUTTON_UP, VSCROLL, HSCROLL, }; /* * tpad_touch.flags: */ #define L_EDGE (1 << 0) #define R_EDGE (1 << 1) #define T_EDGE (1 << 2) #define B_EDGE (1 << 3) #define THUMB (1 << 4) #define EDGES (L_EDGE | R_EDGE | T_EDGE | B_EDGE) /* * A touch is "centered" if it does not start and remain at the top * edge or one of the vertical edges. Two-finger scrolling and tapping * require that at least one touch is centered. */ #define CENTERED(t) (((t)->flags & (L_EDGE | R_EDGE | T_EDGE)) == 0) enum touchstates { TOUCH_NONE, TOUCH_BEGIN, TOUCH_UPDATE, TOUCH_END, }; struct tpad_touch { u_int flags; enum touchstates state; int x; int y; int dir; struct timespec start; struct timespec match; struct position *pos; struct { int x; int y; struct timespec time; } orig; }; /* * wstpad.features */ #define WSTPAD_SOFTBUTTONS (1 << 0) #define WSTPAD_SOFTMBTN (1 << 1) #define WSTPAD_TOPBUTTONS (1 << 2) #define WSTPAD_TWOFINGERSCROLL (1 << 3) #define WSTPAD_EDGESCROLL (1 << 4) #define WSTPAD_HORIZSCROLL (1 << 5) #define WSTPAD_SWAPSIDES (1 << 6) #define WSTPAD_DISABLE (1 << 7) #define WSTPAD_MT (1 << 31) struct wstpad { u_int features; u_int handlers; /* * t always points into the tpad_touches array, which has at * least one element. If there is more than one, t selects * the pointer-controlling touch. */ struct tpad_touch *t; struct tpad_touch *tpad_touches; u_int mtcycle; u_int ignore; int contacts; int prev_contacts; u_int btns; u_int btns_sync; int ratio; struct timespec time; u_int freeze; struct timespec freeze_ts; /* edge coordinates */ struct { int left; int right; int top; int bottom; int center; int center_left; int center_right; int low; } edge; struct { /* ratios to the surface width or height */ int left_edge; int right_edge; int top_edge; int bottom_edge; int center_width; /* two-finger contacts */ int f2pressure; int f2width; } params; /* handler state and configuration: */ u_int softbutton; u_int sbtnswap; struct { enum tap_state state; int contacts; int valid; u_int pending; u_int button; int masked; int maxdist; struct timeout to; /* parameters: */ struct timespec maxtime; int clicktime; int locktime; u_int btnmap[TAP_BTNMAP_SIZE]; } tap; struct { int dz; int dw; int hdist; int vdist; int mag; } scroll; }; static const struct timespec match_interval = { .tv_sec = 0, .tv_nsec = MATCHINTERVAL_MS * 1000000 }; static const struct timespec stop_interval = { .tv_sec = 0, .tv_nsec = STOPINTERVAL_MS * 1000000 }; /* * Coordinates in the wstpad struct are "normalized" device coordinates, * the orientation is left-to-right and upward. */ static inline int normalize_abs(struct axis_filter *filter, int val) { return (filter->inv ? filter->inv - val : val); } static inline int normalize_rel(struct axis_filter *filter, int val) { return (filter->inv ? -val : val); } /* * Directions of motion are represented by numbers in the range 0 - 11, * corresponding to clockwise counted circle sectors: * * 11 | 0 * 10 | 1 * 9 | 2 * -------+------- * 8 | 3 * 7 | 4 * 6 | 5 * */ /* Tangent constants in [*.12] fixed-point format: */ #define TAN_DEG_60 7094 #define TAN_DEG_30 2365 #define NORTH(d) ((d) == 0 || (d) == 11) #define SOUTH(d) ((d) == 5 || (d) == 6) #define EAST(d) ((d) == 2 || (d) == 3) #define WEST(d) ((d) == 8 || (d) == 9) static inline int direction(int dx, int dy, int ratio) { int rdy, dir = -1; if (dx || dy) { rdy = abs(dy) * ratio; if (abs(dx) * TAN_DEG_60 < rdy) dir = 0; else if (abs(dx) * TAN_DEG_30 < rdy) dir = 1; else dir = 2; if ((dx < 0) != (dy < 0)) dir = 5 - dir; if (dx < 0) dir += 6; } return dir; } static inline int dircmp(int dir1, int dir2) { int diff = abs(dir1 - dir2); return (diff <= 6 ? diff : 12 - diff); } /* * Update direction and timespec attributes for a touch. They are used to * determine whether it is moving - or resting - stably. * * The callers pass touches from the current frame and the touches that are * no longer present in the update cycle to this function. Even though this * ensures that pairs of zero deltas do not result from stale coordinates, * zero deltas do not reset the state immediately. A short time span - the * "stop interval" - must pass before the state is cleared, which is * necessary because some touchpads report intermediate stops when a touch * is moving very slowly. */ void wstpad_set_direction(struct wstpad *tp, struct tpad_touch *t, int dx, int dy) { int dir; struct timespec ts; if (t->state != TOUCH_UPDATE) { t->dir = -1; memcpy(&t->start, &tp->time, sizeof(struct timespec)); return; } dir = direction(dx, dy, tp->ratio); if (dir >= 0) { if (t->dir < 0 || dircmp(dir, t->dir) > 1) { memcpy(&t->start, &tp->time, sizeof(struct timespec)); } t->dir = dir; memcpy(&t->match, &tp->time, sizeof(struct timespec)); } else if (t->dir >= 0) { timespecsub(&tp->time, &t->match, &ts); if (timespeccmp(&ts, &stop_interval, >=)) { t->dir = -1; memcpy(&t->start, &t->match, sizeof(struct timespec)); } } } /* * Make a rough, but quick estimation of the speed of a touch. Its * distance to the previous position is scaled by factors derived * from the average update rate and the deceleration parameter * (filter.dclr). The unit of the result is: * (filter.dclr / 100) device units per millisecond * * Magnitudes are returned in [*.12] fixed-point format. For purposes * of filtering, they are divided into medium and high speeds * (> MAG_MEDIUM), low speeds, and very low speeds (< MAG_LOW). * * The scale factors are not affected if deceleration is turned off. */ static inline int magnitude(struct wsmouseinput *input, int dx, int dy) { int h, v; h = abs(dx) * input->filter.h.mag_scale; v = abs(dy) * input->filter.v.mag_scale; /* Return an "alpha-max-plus-beta-min" approximation: */ return (h >= v ? h + 3 * v / 8 : v + 3 * h / 8); } /* * Treat a touch as stable if it is moving at a medium or high speed, * if it is moving continuously, or if it has stopped for a certain * time span. */ int wstpad_is_stable(struct wsmouseinput *input, struct tpad_touch *t) { struct timespec ts; if (t->dir >= 0) { if (magnitude(input, t->pos->dx, t->pos->dy) > MAG_MEDIUM) return (1); timespecsub(&t->match, &t->start, &ts); } else { timespecsub(&input->tp->time, &t->start, &ts); } return (timespeccmp(&ts, &match_interval, >=)); } /* * If a touch starts in an edge area, pointer movement will be * suppressed as long as it stays in that area. */ static inline u_int edge_flags(struct wstpad *tp, int x, int y) { u_int flags = 0; if (x < tp->edge.left) flags |= L_EDGE; else if (x >= tp->edge.right) flags |= R_EDGE; if (y < tp->edge.bottom) flags |= B_EDGE; else if (y >= tp->edge.top) flags |= T_EDGE; return (flags); } static inline struct tpad_touch * get_2nd_touch(struct wsmouseinput *input) { struct wstpad *tp = input->tp; int slot; if (IS_MT(tp)) { slot = ffs(input->mt.touches & ~(input->mt.ptr | tp->ignore)); if (slot) return &tp->tpad_touches[--slot]; } return NULL; } /* Suppress pointer motion for a short period of time. */ static inline void set_freeze_ts(struct wstpad *tp, int sec, int ms) { tp->freeze_ts.tv_sec = sec; tp->freeze_ts.tv_nsec = ms * 1000000; timespecadd(&tp->time, &tp->freeze_ts, &tp->freeze_ts); } /* Return TRUE if two-finger- or edge-scrolling would be valid. */ int wstpad_scroll_coords(struct wsmouseinput *input, int *dx, int *dy) { struct wstpad *tp = input->tp; if (tp->contacts != tp->prev_contacts || tp->btns || tp->btns_sync) { tp->scroll.dz = 0; tp->scroll.dw = 0; return (0); } if ((input->motion.sync & SYNC_POSITION) == 0) return (0); /* * Try to exclude accidental scroll events by checking whether the * pointer-controlling touch is stable. The check, which may cause * a short delay, is only applied initially, a touch that stops and * resumes scrolling is not affected. */ if (tp->scroll.dz || tp->scroll.dw || wstpad_is_stable(input, tp->t)) { *dx = normalize_rel(&input->filter.h, input->motion.pos.dx); *dy = normalize_rel(&input->filter.v, input->motion.pos.dy); return (*dx || *dy); } return (0); } void wstpad_scroll(struct wstpad *tp, int dx, int dy, int mag, u_int *cmds) { int dz, dw, n = 1; /* * The function applies strong deceleration, but only to input with * very low speeds. A higher threshold might make applications * without support for precision scrolling appear unresponsive. */ mag = tp->scroll.mag = imin(MAG_MEDIUM, (mag + 3 * tp->scroll.mag) / 4); if (mag < MAG_LOW) n = (MAG_LOW - mag) / 4096 + 1; if (dy && tp->scroll.vdist) { if (tp->scroll.dw) { /* * Before switching the axis, wstpad_scroll_coords() * should check again whether the movement is stable. */ tp->scroll.dw = 0; return; } dz = -dy * 4096 / (tp->scroll.vdist * n); if (tp->scroll.dz) { if ((dy < 0) != (tp->scroll.dz > 0)) tp->scroll.dz = -tp->scroll.dz; dz = (dz + 3 * tp->scroll.dz) / 4; } if (dz) { tp->scroll.dz = dz; *cmds |= 1 << VSCROLL; } } else if (dx && tp->scroll.hdist) { if (tp->scroll.dz) { tp->scroll.dz = 0; return; } dw = dx * 4096 / (tp->scroll.hdist * n); if (tp->scroll.dw) { if ((dx > 0) != (tp->scroll.dw > 0)) tp->scroll.dw = -tp->scroll.dw; dw = (dw + 3 * tp->scroll.dw) / 4; } if (dw) { tp->scroll.dw = dw; *cmds |= 1 << HSCROLL; } } } void wstpad_f2scroll(struct wsmouseinput *input, u_int *cmds) { struct wstpad *tp = input->tp; struct tpad_touch *t2; int dir, dx, dy, centered; if (tp->ignore == 0) { if (tp->contacts != 2) return; } else if (tp->contacts != 3 || (tp->ignore == input->mt.ptr)) { return; } if (!wstpad_scroll_coords(input, &dx, &dy)) return; dir = tp->t->dir; if (!(NORTH(dir) || SOUTH(dir))) dy = 0; if (!(EAST(dir) || WEST(dir))) dx = 0; if (dx || dy) { centered = CENTERED(tp->t); if (IS_MT(tp)) { t2 = get_2nd_touch(input); if (t2 == NULL) return; dir = t2->dir; if ((dy > 0 && !NORTH(dir)) || (dy < 0 && !SOUTH(dir))) return; if ((dx > 0 && !EAST(dir)) || (dx < 0 && !WEST(dir))) return; if (!wstpad_is_stable(input, t2) && !(tp->scroll.dz || tp->scroll.dw)) return; centered |= CENTERED(t2); } if (centered) { wstpad_scroll(tp, dx, dy, magnitude(input, dx, dy), cmds); set_freeze_ts(tp, 0, FREEZE_MS); } } } void wstpad_edgescroll(struct wsmouseinput *input, u_int *cmds) { struct wstpad *tp = input->tp; struct tpad_touch *t = tp->t; u_int v_edge, b_edge; int dx, dy; if (!wstpad_scroll_coords(input, &dx, &dy) || tp->contacts != 1) return; v_edge = (tp->features & WSTPAD_SWAPSIDES) ? L_EDGE : R_EDGE; b_edge = (tp->features & WSTPAD_HORIZSCROLL) ? B_EDGE : 0; if ((t->flags & v_edge) == 0) dy = 0; if ((t->flags & b_edge) == 0) dx = 0; if (dx || dy) wstpad_scroll(tp, dx, dy, magnitude(input, dx, dy), cmds); } static inline u_int sbtn(struct wstpad *tp, int x, int y) { if (y >= tp->edge.bottom) return (0); if ((tp->features & WSTPAD_SOFTMBTN) && x >= tp->edge.center_left && x < tp->edge.center_right) return (MIDDLEBTN); return ((x < tp->edge.center ? LEFTBTN : RIGHTBTN) ^ tp->sbtnswap); } static inline u_int top_sbtn(struct wstpad *tp, int x, int y) { if (y < tp->edge.top) return (0); if (x < tp->edge.center_left) return (LEFTBTN ^ tp->sbtnswap); return (x > tp->edge.center_right ? (RIGHTBTN ^ tp->sbtnswap) : MIDDLEBTN); } u_int wstpad_get_sbtn(struct wsmouseinput *input, int top) { struct wstpad *tp = input->tp; struct tpad_touch *t = tp->t; u_int btn; btn = 0; if (tp->contacts) { btn = top ? top_sbtn(tp, t->x, t->y) : sbtn(tp, t->x, t->y); /* * If there is no middle-button area, but contacts in both * halves of the edge zone, generate a middle-button event: */ if (btn && IS_MT(tp) && tp->contacts == 2 && !top && !(tp->features & WSTPAD_SOFTMBTN)) { if ((t = get_2nd_touch(input)) != NULL) btn |= sbtn(tp, t->x, t->y); if (btn == (LEFTBTN | RIGHTBTN)) btn = MIDDLEBTN; } } return (btn != PRIMARYBTN ? btn : 0); } void wstpad_softbuttons(struct wsmouseinput *input, u_int *cmds, int hdlr) { struct wstpad *tp = input->tp; int top = (hdlr == TOPBUTTON_HDLR); if (tp->softbutton && PRIMARYBTN_RELEASED(tp)) { *cmds |= 1 << SOFTBUTTON_UP; return; } if (tp->softbutton == 0 && PRIMARYBTN_CLICKED(tp)) { tp->softbutton = wstpad_get_sbtn(input, top); if (tp->softbutton) *cmds |= 1 << SOFTBUTTON_DOWN; } } /* Check whether the duration of t is within the tap limit. */ int wstpad_is_tap(struct wstpad *tp, struct tpad_touch *t) { struct timespec ts; timespecsub(&tp->time, &t->orig.time, &ts); return (timespeccmp(&ts, &tp->tap.maxtime, <)); } /* * At least one MT touch must remain close to its origin and end * in the main area. The same conditions apply to one-finger taps * on single-touch devices. */ void wstpad_tap_filter(struct wstpad *tp, struct tpad_touch *t) { int dx, dy, dist = 0; if (IS_MT(tp) || tp->tap.contacts == 1) { dx = abs(t->x - t->orig.x) << 12; dy = abs(t->y - t->orig.y) * tp->ratio; dist = (dx >= dy ? dx + 3 * dy / 8 : dy + 3 * dx / 8); } tp->tap.valid = (CENTERED(t) && dist <= (tp->tap.maxdist << 12)); } /* * Return the oldest touch in the TOUCH_END state, or NULL. */ struct tpad_touch * wstpad_tap_touch(struct wsmouseinput *input) { struct wstpad *tp = input->tp; struct tpad_touch *s, *t = NULL; u_int lifted; int slot; if (IS_MT(tp)) { lifted = (input->mt.sync[MTS_TOUCH] & ~input->mt.touches); FOREACHBIT(lifted, slot) { s = &tp->tpad_touches[slot]; if (tp->tap.state == TAP_DETECT && !tp->tap.valid) wstpad_tap_filter(tp, s); if (t == NULL || timespeccmp(&t->orig.time, &s->orig.time, >)) t = s; } } else { if (tp->t->state == TOUCH_END) { t = tp->t; if (tp->tap.state == TAP_DETECT && !tp->tap.valid) wstpad_tap_filter(tp, t); } } return (t); } /* Determine the "tap button", keep track of whether a touch is masked. */ u_int wstpad_tap_button(struct wstpad *tp) { int n = tp->tap.contacts - tp->contacts - 1; tp->tap.masked = tp->contacts; return (n >= 0 && n < TAP_BTNMAP_SIZE ? tp->tap.btnmap[n] : 0); } /* * In the hold/drag state, do not mask touches if no masking was involved * in the preceding tap gesture. */ static inline int tap_unmask(struct wstpad *tp) { return ((tp->tap.button || tp->tap.pending) && tp->tap.masked == 0); } /* * In the default configuration, this handler maps one-, two-, and * three-finger taps to left-button, right-button, and middle-button * events, respectively. Setting the LOCKTIME parameter enables * "locked drags", which are finished by a timeout or a tap-to-end * gesture. */ void wstpad_tap(struct wsmouseinput *input, u_int *cmds) { struct wstpad *tp = input->tp; struct tpad_touch *t; int contacts, is_tap, slot, err = 0; /* Synchronize the button states, if necessary. */ if (input->btn.sync) *cmds |= 1 << TAPBUTTON_SYNC; /* * It is possible to produce a click within the tap timeout. * Wait for a new touch before generating new button events. */ if (PRIMARYBTN_RELEASED(tp)) tp->tap.contacts = 0; /* Reset the detection state whenever a new touch starts. */ if (tp->contacts > tp->prev_contacts || (IS_MT(tp) && (input->mt.touches & input->mt.sync[MTS_TOUCH]))) { tp->tap.contacts = tp->contacts; tp->tap.valid = 0; } /* * The filtered number of active touches excludes a masked * touch if its duration exceeds the tap limit. */ contacts = tp->contacts; if ((slot = ffs(input->mt.ptr_mask) - 1) >= 0 && !wstpad_is_tap(tp, &tp->tpad_touches[slot]) && !tap_unmask(tp)) { contacts--; } switch (tp->tap.state) { case TAP_DETECT: /* Find the oldest touch in the TOUCH_END state. */ t = wstpad_tap_touch(input); if (t) { is_tap = wstpad_is_tap(tp, t); if (is_tap && contacts == 0) { if (tp->tap.button) *cmds |= 1 << TAPBUTTON_UP; tp->tap.pending = (tp->tap.valid ? wstpad_tap_button(tp) : 0); if (tp->tap.pending) { tp->tap.state = TAP_LIFTED; err = !timeout_add_msec(&tp->tap.to, CLICKDELAY_MS); } } else if (!is_tap && tp->tap.locktime == 0) { if (contacts == 0 && tp->tap.button) *cmds |= 1 << TAPBUTTON_UP; else if (contacts) tp->tap.state = TAP_IGNORE; } else if (!is_tap && tp->tap.button) { if (contacts == 0) { tp->tap.state = TAP_LOCKED; err = !timeout_add_msec(&tp->tap.to, tp->tap.locktime); } else { tp->tap.state = TAP_LOCKED_DRAG; } } } break; case TAP_IGNORE: if (contacts == 0) { tp->tap.state = TAP_DETECT; if (tp->tap.button) *cmds |= 1 << TAPBUTTON_UP; } break; case TAP_LIFTED: if (contacts) { timeout_del(&tp->tap.to); tp->tap.state = TAP_DETECT; if (tp->tap.pending) *cmds |= 1 << TAPBUTTON_DOWN; } break; case TAP_LOCKED: if (contacts) { timeout_del(&tp->tap.to); tp->tap.state = TAP_LOCKED_DRAG; } break; case TAP_LOCKED_DRAG: if (contacts == 0) { t = wstpad_tap_touch(input); if (t && wstpad_is_tap(tp, t)) { /* "tap-to-end" */ *cmds |= 1 << TAPBUTTON_UP; tp->tap.state = TAP_DETECT; } else { tp->tap.state = TAP_LOCKED; err = !timeout_add_msec(&tp->tap.to, tp->tap.locktime); } } break; } if (err) { /* Did timeout_add fail? */ input->sbtn.buttons &= ~tp->tap.button; input->sbtn.sync |= tp->tap.button; tp->tap.pending = 0; tp->tap.button = 0; tp->tap.state = TAP_DETECT; } } int wstpad_tap_sync(struct wsmouseinput *input) { struct wstpad *tp = input->tp; return ((tp->tap.button & (input->btn.buttons | tp->softbutton)) == 0 || (tp->tap.button == PRIMARYBTN && tp->softbutton)); } void wstpad_tap_timeout(void *p) { struct wsmouseinput *input = p; struct wstpad *tp = input->tp; struct evq_access evq; u_int btn; int s, ev; s = spltty(); evq.evar = *input->evar; if (evq.evar != NULL && tp != NULL) { ev = 0; if (tp->tap.pending) { tp->tap.button = tp->tap.pending; tp->tap.pending = 0; input->sbtn.buttons |= tp->tap.button; timeout_add_msec(&tp->tap.to, tp->tap.clicktime); if (wstpad_tap_sync(input)) { ev = BTN_DOWN_EV; btn = ffs(tp->tap.button) - 1; } } else { if (wstpad_tap_sync(input)) { ev = BTN_UP_EV; btn = ffs(tp->tap.button) - 1; } if (tp->tap.button != tp->softbutton) input->sbtn.buttons &= ~tp->tap.button; tp->tap.button = 0; tp->tap.state = TAP_DETECT; } if (ev) { evq.put = evq.evar->put; evq.result = EVQ_RESULT_NONE; getnanotime(&evq.ts); wsmouse_evq_put(&evq, ev, btn); wsmouse_evq_put(&evq, SYNC_EV, 0); if (evq.result == EVQ_RESULT_SUCCESS) { if (input->flags & LOG_EVENTS) { wsmouse_log_events(input, &evq); } evq.evar->put = evq.put; WSEVENT_WAKEUP(evq.evar); } else { input->sbtn.sync |= tp->tap.button; } } } splx(s); } /* * Suppress accidental pointer movements after a click on a clickpad. */ void wstpad_click(struct wsmouseinput *input) { struct wstpad *tp = input->tp; if (tp->contacts == 1 && (PRIMARYBTN_CLICKED(tp) || PRIMARYBTN_RELEASED(tp))) set_freeze_ts(tp, 0, FREEZE_MS); } /* Translate the "command" bits into the sync-state of wsmouse. */ void wstpad_cmds(struct wsmouseinput *input, u_int cmds) { struct wstpad *tp = input->tp; int n; FOREACHBIT(cmds, n) { switch (n) { case CLEAR_MOTION_DELTAS: input->motion.dx = input->motion.dy = 0; if (input->motion.dz == 0 && input->motion.dw == 0) input->motion.sync &= ~SYNC_DELTAS; continue; case SOFTBUTTON_DOWN: input->btn.sync &= ~PRIMARYBTN; input->sbtn.buttons |= tp->softbutton; if (tp->softbutton != tp->tap.button) input->sbtn.sync |= tp->softbutton; continue; case SOFTBUTTON_UP: input->btn.sync &= ~PRIMARYBTN; if (tp->softbutton != tp->tap.button) { input->sbtn.buttons &= ~tp->softbutton; input->sbtn.sync |= tp->softbutton; } tp->softbutton = 0; continue; case TAPBUTTON_SYNC: if (tp->tap.button) input->btn.sync &= ~tp->tap.button; continue; case TAPBUTTON_DOWN: tp->tap.button = tp->tap.pending; tp->tap.pending = 0; input->sbtn.buttons |= tp->tap.button; if (wstpad_tap_sync(input)) input->sbtn.sync |= tp->tap.button; continue; case TAPBUTTON_UP: if (tp->tap.button != tp->softbutton) input->sbtn.buttons &= ~tp->tap.button; if (wstpad_tap_sync(input)) input->sbtn.sync |= tp->tap.button; tp->tap.button = 0; continue; case HSCROLL: input->motion.dw = tp->scroll.dw; input->motion.sync |= SYNC_DELTAS; continue; case VSCROLL: input->motion.dz = tp->scroll.dz; input->motion.sync |= SYNC_DELTAS; continue; default: printf("[wstpad] invalid cmd %d\n", n); break; } } } /* * Set the state of touches that have ended. TOUCH_END is a transitional * state and will be changed to TOUCH_NONE before process_input() returns. */ static inline void clear_touchstates(struct wsmouseinput *input, enum touchstates state) { u_int touches; int slot; touches = input->mt.sync[MTS_TOUCH] & ~input->mt.touches; FOREACHBIT(touches, slot) input->tp->tpad_touches[slot].state = state; } void wstpad_mt_inputs(struct wsmouseinput *input) { struct wstpad *tp = input->tp; struct tpad_touch *t; int slot, dx, dy; u_int touches, inactive; /* TOUCH_BEGIN */ touches = input->mt.touches & input->mt.sync[MTS_TOUCH]; FOREACHBIT(touches, slot) { t = &tp->tpad_touches[slot]; t->state = TOUCH_BEGIN; t->x = normalize_abs(&input->filter.h, t->pos->x); t->y = normalize_abs(&input->filter.v, t->pos->y); t->orig.x = t->x; t->orig.y = t->y; memcpy(&t->orig.time, &tp->time, sizeof(struct timespec)); t->flags = edge_flags(tp, t->x, t->y); wstpad_set_direction(tp, t, 0, 0); } /* TOUCH_UPDATE */ touches = input->mt.touches & input->mt.frame; if (touches & tp->mtcycle) { /* * Slot data may be synchronized separately, in any order, * or not at all if there is no delta. Identify the touches * without deltas. */ inactive = input->mt.touches & ~tp->mtcycle; tp->mtcycle = touches; } else { inactive = 0; tp->mtcycle |= touches; } touches = input->mt.touches & ~input->mt.sync[MTS_TOUCH]; FOREACHBIT(touches, slot) { t = &tp->tpad_touches[slot]; t->state = TOUCH_UPDATE; if ((1 << slot) & input->mt.frame) { dx = normalize_abs(&input->filter.h, t->pos->x) - t->x; t->x += dx; dy = normalize_abs(&input->filter.v, t->pos->y) - t->y; t->y += dy; t->flags &= (~EDGES | edge_flags(tp, t->x, t->y)); if (wsmouse_hysteresis(input, t->pos)) dx = dy = 0; wstpad_set_direction(tp, t, dx, dy); } else if ((1 << slot) & inactive) { wstpad_set_direction(tp, t, 0, 0); } } clear_touchstates(input, TOUCH_END); } /* * Identify "thumb" contacts in the bottom area. The identification * has three stages: * 1. If exactly one of two or more touches is in the bottom area, it * is masked, which means it does not receive pointer control as long * as there are alternatives. Once set, the mask will only be cleared * when the touch is released. * Tap detection ignores a masked touch if it does not participate in * a tap gesture. * 2. If the pointer-controlling touch is moving stably while a masked * touch in the bottom area is resting, or only moving minimally, the * pointer mask is copied to tp->ignore. In this stage, the masked * touch does not block pointer movement, and it is ignored by * wstpad_f2scroll(). * Decisions are made more or less immediately, there may be errors * in edge cases. If a fast or long upward movement is detected, * tp->ignore is cleared. There is no other transition from stage 2 * to scrolling, or vice versa, for a pair of touches. * 3. If tp->ignore is set and the touch is resting, it is marked as * thumb, and it will be ignored until it ends. */ void wstpad_mt_masks(struct wsmouseinput *input) { struct wstpad *tp = input->tp; struct tpad_touch *t; struct position *pos; u_int mask; int slot; tp->ignore &= input->mt.touches; if (tp->contacts < 2) return; if (tp->ignore) { slot = ffs(tp->ignore) - 1; t = &tp->tpad_touches[slot]; if (t->flags & THUMB) return; if (t->dir < 0 && wstpad_is_stable(input, t)) { t->flags |= THUMB; return; } /* The edge.low area is a bit larger than the bottom area. */ if (t->y >= tp->edge.low || (NORTH(t->dir) && magnitude(input, t->pos->dx, t->pos->dy) >= MAG_MEDIUM)) tp->ignore = 0; return; } if (input->mt.ptr_mask == 0) { mask = ~0; FOREACHBIT(input->mt.touches, slot) { t = &tp->tpad_touches[slot]; if (t->flags & B_EDGE) { mask &= (1 << slot); input->mt.ptr_mask = mask; } } } if ((input->mt.ptr_mask & ~input->mt.ptr) && !(tp->scroll.dz || tp->scroll.dw) && tp->t->dir >= 0 && wstpad_is_stable(input, tp->t)) { slot = ffs(input->mt.ptr_mask) - 1; t = &tp->tpad_touches[slot]; if (t->y >= tp->edge.low) return; if (!wstpad_is_stable(input, t)) return; /* Default hysteresis limits are low. Make a strict check. */ pos = tp->t->pos; if (abs(pos->acc_dx) < 3 * input->filter.h.hysteresis && abs(pos->acc_dy) < 3 * input->filter.v.hysteresis) return; if (t->dir >= 0) { /* Treat t as thumb if it is slow while tp->t is fast. */ if (magnitude(input, t->pos->dx, t->pos->dy) > MAG_LOW || magnitude(input, pos->dx, pos->dy) < MAG_MEDIUM) return; } tp->ignore = input->mt.ptr_mask; } } void wstpad_touch_inputs(struct wsmouseinput *input) { struct wstpad *tp = input->tp; struct tpad_touch *t; int slot, x, y, dx, dy; tp->btns = input->btn.buttons; tp->btns_sync = input->btn.sync; tp->prev_contacts = tp->contacts; tp->contacts = input->touch.contacts; if (tp->contacts == 1 && ((tp->params.f2width && input->touch.width >= tp->params.f2width) || (tp->params.f2pressure && input->touch.pressure >= tp->params.f2pressure))) tp->contacts = 2; if (IS_MT(tp)) { wstpad_mt_inputs(input); if (input->mt.ptr) { slot = ffs(input->mt.ptr) - 1; tp->t = &tp->tpad_touches[slot]; } wstpad_mt_masks(input); } else { t = tp->t; if (tp->contacts) t->state = (tp->prev_contacts ? TOUCH_UPDATE : TOUCH_BEGIN); else t->state = (tp->prev_contacts ? TOUCH_END : TOUCH_NONE); dx = dy = 0; x = normalize_abs(&input->filter.h, t->pos->x); y = normalize_abs(&input->filter.v, t->pos->y); if (t->state == TOUCH_BEGIN) { t->x = t->orig.x = x; t->y = t->orig.y = y; memcpy(&t->orig.time, &tp->time, sizeof(struct timespec)); t->flags = edge_flags(tp, x, y); } else if (input->motion.sync & SYNC_POSITION) { if (!wsmouse_hysteresis(input, t->pos)) { dx = x - t->x; dy = y - t->y; } t->x = x; t->y = y; t->flags &= (~EDGES | edge_flags(tp, x, y)); } wstpad_set_direction(tp, t, dx, dy); } } static inline int t2_ignore(struct wsmouseinput *input) { /* * If there are two touches, do not block pointer movement if they * perform a click-and-drag action, or if the second touch is * resting in the bottom area. */ return (input->tp->contacts == 2 && ((input->tp->btns & PRIMARYBTN) || (input->tp->ignore & ~input->mt.ptr))); } void wstpad_process_input(struct wsmouseinput *input, struct evq_access *evq) { struct wstpad *tp = input->tp; u_int handlers, hdlr, cmds; memcpy(&tp->time, &evq->ts, sizeof(struct timespec)); wstpad_touch_inputs(input); cmds = 0; handlers = tp->handlers; if (DISABLE(tp)) handlers &= ((1 << TOPBUTTON_HDLR) | (1 << SOFTBUTTON_HDLR)); FOREACHBIT(handlers, hdlr) { switch (hdlr) { case SOFTBUTTON_HDLR: case TOPBUTTON_HDLR: wstpad_softbuttons(input, &cmds, hdlr); continue; case TAP_HDLR: wstpad_tap(input, &cmds); continue; case F2SCROLL_HDLR: wstpad_f2scroll(input, &cmds); continue; case EDGESCROLL_HDLR: wstpad_edgescroll(input, &cmds); continue; case CLICK_HDLR: wstpad_click(input); continue; } } /* Check whether pointer movement should be blocked. */ if (input->motion.dx || input->motion.dy) { if (DISABLE(tp) || (tp->t->flags & tp->freeze) || timespeccmp(&tp->time, &tp->freeze_ts, <) || (tp->contacts > 1 && !t2_ignore(input))) { cmds |= 1 << CLEAR_MOTION_DELTAS; } } wstpad_cmds(input, cmds); if (IS_MT(tp)) clear_touchstates(input, TOUCH_NONE); } /* * Try to determine the average interval between two updates. Various * conditions are checked in order to ensure that only valid samples enter * into the calculation. Above all, it is restricted to motion events * occurring when there is only one contact. MT devices may need more than * one packet to transmit their state if there are multiple touches, and * the update frequency may be higher in this case. */ void wstpad_track_interval(struct wsmouseinput *input, struct timespec *time) { static const struct timespec limit = { 0, 30 * 1000000L }; struct timespec ts; int samples; if (input->motion.sync == 0 || (input->touch.sync & SYNC_CONTACTS) || (input->touch.contacts > 1)) { input->intv.track = 0; return; } if (input->intv.track) { timespecsub(time, &input->intv.ts, &ts); if (timespeccmp(&ts, &limit, <)) { /* The unit of the sum is 4096 nanoseconds. */ input->intv.sum += ts.tv_nsec >> 12; samples = ++input->intv.samples; /* * Make the first calculation quickly and later * a more reliable one: */ if (samples == 8) { input->intv.avg = input->intv.sum << 9; wstpad_init_deceleration(input); } else if (samples == 128) { input->intv.avg = input->intv.sum << 5; wstpad_init_deceleration(input); input->intv.samples = 0; input->intv.sum = 0; input->flags &= ~TRACK_INTERVAL; } } } memcpy(&input->intv.ts, time, sizeof(struct timespec)); input->intv.track = 1; } /* * The default acceleration options of X don't work convincingly with * touchpads (the synaptics driver installs its own "acceleration * profile" and callback function). As a preliminary workaround, this * filter applies a simple deceleration scheme to small deltas, based * on the "magnitude" of the delta pair. A magnitude of 8 corresponds, * roughly, to a speed of (filter.dclr / 12.5) device units per milli- * second. If its magnitude is smaller than 7 a delta will be downscaled * by the factor 2/8, deltas with magnitudes from 7 to 11 by factors * ranging from 3/8 to 7/8. */ int wstpad_decelerate(struct wsmouseinput *input, int *dx, int *dy) { int mag, n, h, v; mag = magnitude(input, *dx, *dy); /* Don't change deceleration levels abruptly. */ mag = (mag + 7 * input->filter.mag) / 8; /* Don't use arbitrarily high values. */ input->filter.mag = imin(mag, 24 << 12); n = imax((mag >> 12) - 4, 2); if (n < 8) { /* Scale by (n / 8). */ h = *dx * n + input->filter.h.dclr_rmdr; v = *dy * n + input->filter.v.dclr_rmdr; input->filter.h.dclr_rmdr = (h >= 0 ? h & 7 : -(-h & 7)); input->filter.v.dclr_rmdr = (v >= 0 ? v & 7 : -(-v & 7)); *dx = h / 8; *dy = v / 8; return (1); } return (0); } void wstpad_filter(struct wsmouseinput *input) { struct axis_filter *h = &input->filter.h; struct axis_filter *v = &input->filter.v; struct position *pos = &input->motion.pos; int strength = input->filter.mode & 7; int dx, dy; if (!(input->motion.sync & SYNC_POSITION) || (h->dmax && (abs(pos->dx) > h->dmax)) || (v->dmax && (abs(pos->dy) > v->dmax))) { dx = dy = 0; } else { dx = pos->dx; dy = pos->dy; } if (wsmouse_hysteresis(input, pos)) dx = dy = 0; if (input->filter.dclr && wstpad_decelerate(input, &dx, &dy)) /* Strong smoothing may hamper the precision at low speeds. */ strength = imin(strength, 2); if (strength) { if ((input->touch.sync & SYNC_CONTACTS) || input->mt.ptr != input->mt.prev_ptr) { h->avg = v->avg = 0; } /* Use a weighted decaying average for smoothing. */ dx = dx * (8 - strength) + h->avg * strength + h->avg_rmdr; dy = dy * (8 - strength) + v->avg * strength + v->avg_rmdr; h->avg_rmdr = (dx >= 0 ? dx & 7 : -(-dx & 7)); v->avg_rmdr = (dy >= 0 ? dy & 7 : -(-dy & 7)); dx = h->avg = dx / 8; dy = v->avg = dy / 8; } input->motion.dx = dx; input->motion.dy = dy; } /* * Compatibility-mode conversions. wstpad_filter transforms and filters * the coordinate inputs, extended functionality is provided by * wstpad_process_input. */ void wstpad_compat_convert(struct wsmouseinput *input, struct evq_access *evq) { if (input->flags & TRACK_INTERVAL) wstpad_track_interval(input, &evq->ts); wstpad_filter(input); if ((input->motion.dx || input->motion.dy) && !(input->motion.sync & SYNC_DELTAS)) { input->motion.dz = input->motion.dw = 0; input->motion.sync |= SYNC_DELTAS; } if (input->tp != NULL) wstpad_process_input(input, evq); input->motion.sync &= ~SYNC_POSITION; input->touch.sync = 0; } int wstpad_init(struct wsmouseinput *input) { struct wstpad *tp = input->tp; int i, slots; if (tp != NULL) return (0); input->tp = tp = malloc(sizeof(struct wstpad), M_DEVBUF, M_WAITOK | M_ZERO); if (tp == NULL) return (-1); slots = imax(input->mt.num_slots, 1); tp->tpad_touches = malloc(slots * sizeof(struct tpad_touch), M_DEVBUF, M_WAITOK | M_ZERO); if (tp->tpad_touches == NULL) { free(tp, M_DEVBUF, sizeof(struct wstpad)); return (-1); } tp->t = &tp->tpad_touches[0]; if (input->mt.num_slots) { tp->features |= WSTPAD_MT; for (i = 0; i < input->mt.num_slots; i++) tp->tpad_touches[i].pos = &input->mt.slots[i].pos; } else { tp->t->pos = &input->motion.pos; } timeout_set(&tp->tap.to, wstpad_tap_timeout, input); tp->ratio = input->filter.ratio; return (0); } /* * Integer square root (Halleck's method) * * An adaption of code from John B. Halleck (from * http://www.cc.utah.edu/~nahaj/factoring/code.html). This version is * used and published under the OpenBSD license terms with his permission. * * Cf. also Martin Guy's "Square root by abacus" method. */ static inline u_int isqrt(u_int n) { u_int root, sqbit; root = 0; sqbit = 1 << (sizeof(u_int) * 8 - 2); while (sqbit) { if (n >= (sqbit | root)) { n -= (sqbit | root); root = (root >> 1) | sqbit; } else { root >>= 1; } sqbit >>= 2; } return (root); } void wstpad_init_deceleration(struct wsmouseinput *input) { int n, dclr; if ((dclr = input->filter.dclr) == 0) return; dclr = imax(dclr, 4); /* * For a standard update rate of about 80Hz, (dclr) units * will be mapped to a magnitude of 8. If the average rate * is significantly higher or lower, adjust the coefficient * accordingly: */ if (input->intv.avg == 0) { n = 8; } else { n = 8 * 13000000 / input->intv.avg; n = imax(imin(n, 32), 4); } input->filter.h.mag_scale = (n << 12) / dclr; input->filter.v.mag_scale = (input->filter.ratio ? n * input->filter.ratio : n << 12) / dclr; input->filter.h.dclr_rmdr = 0; input->filter.v.dclr_rmdr = 0; input->flags |= TRACK_INTERVAL; } int wstpad_configure(struct wsmouseinput *input) { struct wstpad *tp; int width, height, diag, offset, h_res, v_res, h_unit, v_unit, i; width = abs(input->hw.x_max - input->hw.x_min); height = abs(input->hw.y_max - input->hw.y_min); if (width == 0 || height == 0) return (-1); /* We can't do anything. */ if (input->tp == NULL && wstpad_init(input)) return (-1); tp = input->tp; if (!(input->flags & CONFIGURED)) { /* * The filter parameters are derived from the length of the * diagonal in device units, with some magic constants which * are partly adapted from libinput or synaptics code, or are * based on tests and guess work. The absolute resolution * values might not be reliable, but if they are present the * settings are adapted to the ratio. */ h_res = input->hw.h_res; v_res = input->hw.v_res; if (h_res == 0 || v_res == 0) h_res = v_res = 1; diag = isqrt(width * width + height * height); input->filter.h.scale = (imin(920, diag) << 12) / diag; input->filter.v.scale = input->filter.h.scale * h_res / v_res; h_unit = imax(diag / 280, 3); v_unit = imax((h_unit * v_res + h_res / 2) / h_res, 3); input->filter.h.hysteresis = h_unit; input->filter.v.hysteresis = v_unit; input->filter.mode = FILTER_MODE_DEFAULT; input->filter.dclr = h_unit - h_unit / 5; wstpad_init_deceleration(input); tp->features &= (WSTPAD_MT | WSTPAD_DISABLE); if (input->hw.contacts_max != 1) tp->features |= WSTPAD_TWOFINGERSCROLL; else tp->features |= WSTPAD_EDGESCROLL; if (input->hw.hw_type == WSMOUSEHW_CLICKPAD) { if (input->hw.type == WSMOUSE_TYPE_SYNAP_SBTN) { tp->features |= WSTPAD_TOPBUTTONS; } else { tp->features |= WSTPAD_SOFTBUTTONS; tp->features |= WSTPAD_SOFTMBTN; } } tp->params.left_edge = V_EDGE_RATIO_DEFAULT; tp->params.right_edge = V_EDGE_RATIO_DEFAULT; tp->params.bottom_edge = ((tp->features & WSTPAD_SOFTBUTTONS) ? B_EDGE_RATIO_DEFAULT : 0); tp->params.top_edge = ((tp->features & WSTPAD_TOPBUTTONS) ? T_EDGE_RATIO_DEFAULT : 0); tp->params.center_width = CENTER_RATIO_DEFAULT; tp->tap.maxtime.tv_nsec = TAP_MAXTIME_DEFAULT * 1000000; tp->tap.clicktime = TAP_CLICKTIME_DEFAULT; tp->tap.locktime = TAP_LOCKTIME_DEFAULT; tp->scroll.hdist = 4 * h_unit; tp->scroll.vdist = 4 * v_unit; tp->tap.maxdist = 4 * h_unit; } /* A touch with a flag set in this mask does not move the pointer. */ tp->freeze = EDGES; offset = width * tp->params.left_edge / 4096; tp->edge.left = (offset ? input->hw.x_min + offset : INT_MIN); offset = width * tp->params.right_edge / 4096; tp->edge.right = (offset ? input->hw.x_max - offset : INT_MAX); offset = height * tp->params.bottom_edge / 4096; tp->edge.bottom = (offset ? input->hw.y_min + offset : INT_MIN); tp->edge.low = tp->edge.bottom + offset / 2; offset = height * tp->params.top_edge / 4096; tp->edge.top = (offset ? input->hw.y_max - offset : INT_MAX); offset = width * abs(tp->params.center_width) / 8192; tp->edge.center = input->hw.x_min + width / 2; tp->edge.center_left = tp->edge.center - offset; tp->edge.center_right = tp->edge.center + offset; tp->handlers = 0; if (tp->features & WSTPAD_SOFTBUTTONS) tp->handlers |= 1 << SOFTBUTTON_HDLR; if (tp->features & WSTPAD_TOPBUTTONS) tp->handlers |= 1 << TOPBUTTON_HDLR; if (tp->features & WSTPAD_TWOFINGERSCROLL) tp->handlers |= 1 << F2SCROLL_HDLR; else if (tp->features & WSTPAD_EDGESCROLL) tp->handlers |= 1 << EDGESCROLL_HDLR; for (i = 0; i < TAP_BTNMAP_SIZE; i++) { if (tp->tap.btnmap[i] == 0) continue; tp->tap.clicktime = imin(imax(tp->tap.clicktime, 80), 350); if (tp->tap.locktime) tp->tap.locktime = imin(imax(tp->tap.locktime, 150), 5000); tp->handlers |= 1 << TAP_HDLR; break; } if (input->hw.hw_type == WSMOUSEHW_CLICKPAD) tp->handlers |= 1 << CLICK_HDLR; tp->sbtnswap = ((tp->features & WSTPAD_SWAPSIDES) ? (LEFTBTN | RIGHTBTN) : 0); return (0); } void wstpad_reset(struct wsmouseinput *input) { struct wstpad *tp = input->tp; if (tp != NULL) { timeout_del(&tp->tap.to); tp->tap.state = TAP_DETECT; } if (input->sbtn.buttons) { input->sbtn.sync = input->sbtn.buttons; input->sbtn.buttons = 0; } } void wstpad_cleanup(struct wsmouseinput *input) { struct wstpad *tp = input->tp; int slots; timeout_del(&tp->tap.to); slots = imax(input->mt.num_slots, 1); free(tp->tpad_touches, M_DEVBUF, slots * sizeof(struct tpad_touch)); free(tp, M_DEVBUF, sizeof(struct wstpad)); input->tp = NULL; } int wstpad_set_param(struct wsmouseinput *input, int key, int val) { struct wstpad *tp = input->tp; u_int flag; if (tp == NULL) return (EINVAL); switch (key) { case WSMOUSECFG_SOFTBUTTONS ... WSMOUSECFG_DISABLE: switch (key) { case WSMOUSECFG_SOFTBUTTONS: flag = WSTPAD_SOFTBUTTONS; break; case WSMOUSECFG_SOFTMBTN: flag = WSTPAD_SOFTMBTN; break; case WSMOUSECFG_TOPBUTTONS: flag = WSTPAD_TOPBUTTONS; break; case WSMOUSECFG_TWOFINGERSCROLL: flag = WSTPAD_TWOFINGERSCROLL; break; case WSMOUSECFG_EDGESCROLL: flag = WSTPAD_EDGESCROLL; break; case WSMOUSECFG_HORIZSCROLL: flag = WSTPAD_HORIZSCROLL; break; case WSMOUSECFG_SWAPSIDES: flag = WSTPAD_SWAPSIDES; break; case WSMOUSECFG_DISABLE: flag = WSTPAD_DISABLE; break; } if (val) tp->features |= flag; else tp->features &= ~flag; break; case WSMOUSECFG_LEFT_EDGE: tp->params.left_edge = val; break; case WSMOUSECFG_RIGHT_EDGE: tp->params.right_edge = val; break; case WSMOUSECFG_TOP_EDGE: tp->params.top_edge = val; break; case WSMOUSECFG_BOTTOM_EDGE: tp->params.bottom_edge = val; break; case WSMOUSECFG_CENTERWIDTH: tp->params.center_width = val; break; case WSMOUSECFG_HORIZSCROLLDIST: tp->scroll.hdist = val; break; case WSMOUSECFG_VERTSCROLLDIST: tp->scroll.vdist = val; break; case WSMOUSECFG_F2WIDTH: tp->params.f2width = val; break; case WSMOUSECFG_F2PRESSURE: tp->params.f2pressure = val; break; case WSMOUSECFG_TAP_MAXTIME: tp->tap.maxtime.tv_nsec = imin(val, 999) * 1000000; break; case WSMOUSECFG_TAP_CLICKTIME: tp->tap.clicktime = val; break; case WSMOUSECFG_TAP_LOCKTIME: tp->tap.locktime = val; break; case WSMOUSECFG_TAP_ONE_BTNMAP: tp->tap.btnmap[0] = BTNMASK(val); break; case WSMOUSECFG_TAP_TWO_BTNMAP: tp->tap.btnmap[1] = BTNMASK(val); break; case WSMOUSECFG_TAP_THREE_BTNMAP: tp->tap.btnmap[2] = BTNMASK(val); break; default: return (ENOTSUP); } return (0); } int wstpad_get_param(struct wsmouseinput *input, int key, int *pval) { struct wstpad *tp = input->tp; u_int flag; if (tp == NULL) return (EINVAL); switch (key) { case WSMOUSECFG_SOFTBUTTONS ... WSMOUSECFG_DISABLE: switch (key) { case WSMOUSECFG_SOFTBUTTONS: flag = WSTPAD_SOFTBUTTONS; break; case WSMOUSECFG_SOFTMBTN: flag = WSTPAD_SOFTMBTN; break; case WSMOUSECFG_TOPBUTTONS: flag = WSTPAD_TOPBUTTONS; break; case WSMOUSECFG_TWOFINGERSCROLL: flag = WSTPAD_TWOFINGERSCROLL; break; case WSMOUSECFG_EDGESCROLL: flag = WSTPAD_EDGESCROLL; break; case WSMOUSECFG_HORIZSCROLL: flag = WSTPAD_HORIZSCROLL; break; case WSMOUSECFG_SWAPSIDES: flag = WSTPAD_SWAPSIDES; break; case WSMOUSECFG_DISABLE: flag = WSTPAD_DISABLE; break; } *pval = !!(tp->features & flag); break; case WSMOUSECFG_LEFT_EDGE: *pval = tp->params.left_edge; break; case WSMOUSECFG_RIGHT_EDGE: *pval = tp->params.right_edge; break; case WSMOUSECFG_TOP_EDGE: *pval = tp->params.top_edge; break; case WSMOUSECFG_BOTTOM_EDGE: *pval = tp->params.bottom_edge; break; case WSMOUSECFG_CENTERWIDTH: *pval = tp->params.center_width; break; case WSMOUSECFG_HORIZSCROLLDIST: *pval = tp->scroll.hdist; break; case WSMOUSECFG_VERTSCROLLDIST: *pval = tp->scroll.vdist; break; case WSMOUSECFG_F2WIDTH: *pval = tp->params.f2width; break; case WSMOUSECFG_F2PRESSURE: *pval = tp->params.f2pressure; break; case WSMOUSECFG_TAP_MAXTIME: *pval = tp->tap.maxtime.tv_nsec / 1000000; break; case WSMOUSECFG_TAP_CLICKTIME: *pval = tp->tap.clicktime; break; case WSMOUSECFG_TAP_LOCKTIME: *pval = tp->tap.locktime; break; case WSMOUSECFG_TAP_ONE_BTNMAP: *pval = ffs(tp->tap.btnmap[0]); break; case WSMOUSECFG_TAP_TWO_BTNMAP: *pval = ffs(tp->tap.btnmap[1]); break; case WSMOUSECFG_TAP_THREE_BTNMAP: *pval = ffs(tp->tap.btnmap[2]); break; default: return (ENOTSUP); } return (0); }