You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
615 lines
15 KiB
615 lines
15 KiB
/*
|
|
* Copyright © 2010 Intel Corporation
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and
|
|
* its documentation for any purpose is hereby granted without fee, provided
|
|
* that the above copyright notice appear in all copies and that both that
|
|
* copyright notice and this permission notice appear in supporting
|
|
* documentation, and that the name of the copyright holders not be used in
|
|
* advertising or publicity pertaining to distribution of the software
|
|
* without specific, written prior permission. The copyright holders make
|
|
* no representations about the suitability of this software for any
|
|
* purpose. It is provided "as is" without express or implied warranty.
|
|
*
|
|
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
|
|
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* SPECIAL, 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.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <linux/input.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <mtdev.h>
|
|
|
|
#include "compositor.h"
|
|
#include "evdev.h"
|
|
|
|
#define DEFAULT_AXIS_STEP_DISTANCE wl_fixed_from_int(10)
|
|
|
|
void
|
|
evdev_led_update(struct evdev_device *device, enum weston_led leds)
|
|
{
|
|
static const struct {
|
|
enum weston_led weston;
|
|
int evdev;
|
|
} map[] = {
|
|
{ LED_NUM_LOCK, LED_NUML },
|
|
{ LED_CAPS_LOCK, LED_CAPSL },
|
|
{ LED_SCROLL_LOCK, LED_SCROLLL },
|
|
};
|
|
struct input_event ev[ARRAY_LENGTH(map)];
|
|
unsigned int i;
|
|
|
|
if (!device->caps & EVDEV_KEYBOARD)
|
|
return;
|
|
|
|
memset(ev, 0, sizeof(ev));
|
|
for (i = 0; i < ARRAY_LENGTH(map); i++) {
|
|
ev[i].type = EV_LED;
|
|
ev[i].code = map[i].evdev;
|
|
ev[i].value = !!(leds & map[i].weston);
|
|
}
|
|
|
|
i = write(device->fd, ev, sizeof ev);
|
|
(void)i; /* no, we really don't care about the return value */
|
|
}
|
|
|
|
static inline void
|
|
evdev_process_key(struct evdev_device *device, struct input_event *e, int time)
|
|
{
|
|
if (e->value == 2)
|
|
return;
|
|
|
|
switch (e->code) {
|
|
case BTN_LEFT:
|
|
case BTN_RIGHT:
|
|
case BTN_MIDDLE:
|
|
case BTN_SIDE:
|
|
case BTN_EXTRA:
|
|
case BTN_FORWARD:
|
|
case BTN_BACK:
|
|
case BTN_TASK:
|
|
notify_button(device->seat,
|
|
time, e->code,
|
|
e->value ? WL_POINTER_BUTTON_STATE_PRESSED :
|
|
WL_POINTER_BUTTON_STATE_RELEASED);
|
|
break;
|
|
|
|
default:
|
|
notify_key(device->seat,
|
|
time, e->code,
|
|
e->value ? WL_KEYBOARD_KEY_STATE_PRESSED :
|
|
WL_KEYBOARD_KEY_STATE_RELEASED,
|
|
STATE_UPDATE_AUTOMATIC);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
evdev_process_touch(struct evdev_device *device, struct input_event *e)
|
|
{
|
|
const int screen_width = device->output->current->width;
|
|
const int screen_height = device->output->current->height;
|
|
|
|
switch (e->code) {
|
|
case ABS_MT_SLOT:
|
|
device->mt.slot = e->value;
|
|
break;
|
|
case ABS_MT_TRACKING_ID:
|
|
if (e->value >= 0)
|
|
device->pending_events |= EVDEV_ABSOLUTE_MT_DOWN;
|
|
else
|
|
device->pending_events |= EVDEV_ABSOLUTE_MT_UP;
|
|
break;
|
|
case ABS_MT_POSITION_X:
|
|
device->mt.x[device->mt.slot] =
|
|
(e->value - device->abs.min_x) * screen_width /
|
|
(device->abs.max_x - device->abs.min_x) +
|
|
device->output->x;
|
|
device->pending_events |= EVDEV_ABSOLUTE_MT_MOTION;
|
|
break;
|
|
case ABS_MT_POSITION_Y:
|
|
device->mt.y[device->mt.slot] =
|
|
(e->value - device->abs.min_y) * screen_height /
|
|
(device->abs.max_y - device->abs.min_y) +
|
|
device->output->y;
|
|
device->pending_events |= EVDEV_ABSOLUTE_MT_MOTION;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
evdev_process_absolute_motion(struct evdev_device *device,
|
|
struct input_event *e)
|
|
{
|
|
const int screen_width = device->output->current->width;
|
|
const int screen_height = device->output->current->height;
|
|
|
|
switch (e->code) {
|
|
case ABS_X:
|
|
device->abs.x =
|
|
(e->value - device->abs.min_x) * screen_width /
|
|
(device->abs.max_x - device->abs.min_x) +
|
|
device->output->x;
|
|
device->pending_events |= EVDEV_ABSOLUTE_MOTION;
|
|
break;
|
|
case ABS_Y:
|
|
device->abs.y =
|
|
(e->value - device->abs.min_y) * screen_height /
|
|
(device->abs.max_y - device->abs.min_y) +
|
|
device->output->y;
|
|
device->pending_events |= EVDEV_ABSOLUTE_MOTION;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
evdev_process_relative(struct evdev_device *device,
|
|
struct input_event *e, uint32_t time)
|
|
{
|
|
switch (e->code) {
|
|
case REL_X:
|
|
device->rel.dx += wl_fixed_from_int(e->value);
|
|
device->pending_events |= EVDEV_RELATIVE_MOTION;
|
|
break;
|
|
case REL_Y:
|
|
device->rel.dy += wl_fixed_from_int(e->value);
|
|
device->pending_events |= EVDEV_RELATIVE_MOTION;
|
|
break;
|
|
case REL_WHEEL:
|
|
switch (e->value) {
|
|
case -1:
|
|
/* Scroll down */
|
|
case 1:
|
|
/* Scroll up */
|
|
notify_axis(device->seat,
|
|
time,
|
|
WL_POINTER_AXIS_VERTICAL_SCROLL,
|
|
-1 * e->value * DEFAULT_AXIS_STEP_DISTANCE);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case REL_HWHEEL:
|
|
switch (e->value) {
|
|
case -1:
|
|
/* Scroll left */
|
|
case 1:
|
|
/* Scroll right */
|
|
notify_axis(device->seat,
|
|
time,
|
|
WL_POINTER_AXIS_HORIZONTAL_SCROLL,
|
|
e->value * DEFAULT_AXIS_STEP_DISTANCE);
|
|
break;
|
|
default:
|
|
break;
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
evdev_process_absolute(struct evdev_device *device, struct input_event *e)
|
|
{
|
|
if (device->is_mt) {
|
|
evdev_process_touch(device, e);
|
|
} else {
|
|
evdev_process_absolute_motion(device, e);
|
|
}
|
|
}
|
|
|
|
static int
|
|
is_motion_event(struct input_event *e)
|
|
{
|
|
switch (e->type) {
|
|
case EV_REL:
|
|
switch (e->code) {
|
|
case REL_X:
|
|
case REL_Y:
|
|
return 1;
|
|
}
|
|
break;
|
|
case EV_ABS:
|
|
switch (e->code) {
|
|
case ABS_X:
|
|
case ABS_Y:
|
|
case ABS_MT_POSITION_X:
|
|
case ABS_MT_POSITION_Y:
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
evdev_flush_motion(struct evdev_device *device, uint32_t time)
|
|
{
|
|
struct weston_seat *master = device->seat;
|
|
|
|
if (!device->pending_events)
|
|
return;
|
|
|
|
if (device->pending_events & EVDEV_RELATIVE_MOTION) {
|
|
notify_motion(master, time,
|
|
master->seat.pointer->x + device->rel.dx,
|
|
master->seat.pointer->y + device->rel.dy);
|
|
device->pending_events &= ~EVDEV_RELATIVE_MOTION;
|
|
device->rel.dx = 0;
|
|
device->rel.dy = 0;
|
|
}
|
|
if (device->pending_events & EVDEV_ABSOLUTE_MT_DOWN) {
|
|
notify_touch(master, time,
|
|
device->mt.slot,
|
|
wl_fixed_from_int(device->mt.x[device->mt.slot]),
|
|
wl_fixed_from_int(device->mt.y[device->mt.slot]),
|
|
WL_TOUCH_DOWN);
|
|
device->pending_events &= ~EVDEV_ABSOLUTE_MT_DOWN;
|
|
device->pending_events &= ~EVDEV_ABSOLUTE_MT_MOTION;
|
|
}
|
|
if (device->pending_events & EVDEV_ABSOLUTE_MT_MOTION) {
|
|
notify_touch(master, time,
|
|
device->mt.slot,
|
|
wl_fixed_from_int(device->mt.x[device->mt.slot]),
|
|
wl_fixed_from_int(device->mt.y[device->mt.slot]),
|
|
WL_TOUCH_MOTION);
|
|
device->pending_events &= ~EVDEV_ABSOLUTE_MT_DOWN;
|
|
device->pending_events &= ~EVDEV_ABSOLUTE_MT_MOTION;
|
|
}
|
|
if (device->pending_events & EVDEV_ABSOLUTE_MT_UP) {
|
|
notify_touch(master, time, device->mt.slot, 0, 0,
|
|
WL_TOUCH_UP);
|
|
device->pending_events &= ~EVDEV_ABSOLUTE_MT_UP;
|
|
}
|
|
if (device->pending_events & EVDEV_ABSOLUTE_MOTION) {
|
|
notify_motion(master, time,
|
|
wl_fixed_from_int(device->abs.x),
|
|
wl_fixed_from_int(device->abs.y));
|
|
device->pending_events &= ~EVDEV_ABSOLUTE_MOTION;
|
|
}
|
|
}
|
|
|
|
static void
|
|
fallback_process(struct evdev_dispatch *dispatch,
|
|
struct evdev_device *device,
|
|
struct input_event *event,
|
|
uint32_t time)
|
|
{
|
|
switch (event->type) {
|
|
case EV_REL:
|
|
evdev_process_relative(device, event, time);
|
|
break;
|
|
case EV_ABS:
|
|
evdev_process_absolute(device, event);
|
|
break;
|
|
case EV_KEY:
|
|
evdev_process_key(device, event, time);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
fallback_destroy(struct evdev_dispatch *dispatch)
|
|
{
|
|
free(dispatch);
|
|
}
|
|
|
|
struct evdev_dispatch_interface fallback_interface = {
|
|
fallback_process,
|
|
fallback_destroy
|
|
};
|
|
|
|
static struct evdev_dispatch *
|
|
fallback_dispatch_create(void)
|
|
{
|
|
struct evdev_dispatch *dispatch = malloc(sizeof *dispatch);
|
|
if (dispatch == NULL)
|
|
return NULL;
|
|
|
|
dispatch->interface = &fallback_interface;
|
|
|
|
return dispatch;
|
|
}
|
|
|
|
static void
|
|
evdev_process_events(struct evdev_device *device,
|
|
struct input_event *ev, int count)
|
|
{
|
|
struct evdev_dispatch *dispatch = device->dispatch;
|
|
struct input_event *e, *end;
|
|
uint32_t time = 0;
|
|
|
|
device->pending_events = 0;
|
|
|
|
e = ev;
|
|
end = e + count;
|
|
for (e = ev; e < end; e++) {
|
|
time = e->time.tv_sec * 1000 + e->time.tv_usec / 1000;
|
|
|
|
/* we try to minimize the amount of notifications to be
|
|
* forwarded to the compositor, so we accumulate motion
|
|
* events and send as a bunch */
|
|
if (!is_motion_event(e))
|
|
evdev_flush_motion(device, time);
|
|
|
|
dispatch->interface->process(dispatch, device, e, time);
|
|
}
|
|
|
|
evdev_flush_motion(device, time);
|
|
}
|
|
|
|
static int
|
|
evdev_device_data(int fd, uint32_t mask, void *data)
|
|
{
|
|
struct weston_compositor *ec;
|
|
struct evdev_device *device = data;
|
|
struct input_event ev[32];
|
|
int len;
|
|
|
|
ec = device->seat->compositor;
|
|
if (!ec->focus)
|
|
return 1;
|
|
|
|
/* If the compositor is repainting, this function is called only once
|
|
* per frame and we have to process all the events available on the
|
|
* fd, otherwise there will be input lag. */
|
|
do {
|
|
if (device->mtdev)
|
|
len = mtdev_get(device->mtdev, fd, ev,
|
|
ARRAY_LENGTH(ev)) *
|
|
sizeof (struct input_event);
|
|
else
|
|
len = read(fd, &ev, sizeof ev);
|
|
|
|
if (len < 0 || len % sizeof ev[0] != 0) {
|
|
/* FIXME: call evdev_device_destroy when errno is ENODEV. */
|
|
return 1;
|
|
}
|
|
|
|
evdev_process_events(device, ev, len / sizeof ev[0]);
|
|
|
|
} while (len > 0);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
evdev_configure_device(struct evdev_device *device)
|
|
{
|
|
struct input_absinfo absinfo;
|
|
unsigned long ev_bits[NBITS(EV_MAX)];
|
|
unsigned long abs_bits[NBITS(ABS_MAX)];
|
|
unsigned long rel_bits[NBITS(REL_MAX)];
|
|
unsigned long key_bits[NBITS(KEY_MAX)];
|
|
int has_key, has_abs;
|
|
unsigned int i;
|
|
|
|
has_key = 0;
|
|
has_abs = 0;
|
|
device->caps = 0;
|
|
|
|
ioctl(device->fd, EVIOCGBIT(0, sizeof(ev_bits)), ev_bits);
|
|
if (TEST_BIT(ev_bits, EV_ABS)) {
|
|
has_abs = 1;
|
|
|
|
ioctl(device->fd, EVIOCGBIT(EV_ABS, sizeof(abs_bits)),
|
|
abs_bits);
|
|
if (TEST_BIT(abs_bits, ABS_X)) {
|
|
ioctl(device->fd, EVIOCGABS(ABS_X), &absinfo);
|
|
device->abs.min_x = absinfo.minimum;
|
|
device->abs.max_x = absinfo.maximum;
|
|
device->caps |= EVDEV_MOTION_ABS;
|
|
}
|
|
if (TEST_BIT(abs_bits, ABS_Y)) {
|
|
ioctl(device->fd, EVIOCGABS(ABS_Y), &absinfo);
|
|
device->abs.min_y = absinfo.minimum;
|
|
device->abs.max_y = absinfo.maximum;
|
|
device->caps |= EVDEV_MOTION_ABS;
|
|
}
|
|
if (TEST_BIT(abs_bits, ABS_MT_SLOT)) {
|
|
ioctl(device->fd, EVIOCGABS(ABS_MT_POSITION_X),
|
|
&absinfo);
|
|
device->abs.min_x = absinfo.minimum;
|
|
device->abs.max_x = absinfo.maximum;
|
|
ioctl(device->fd, EVIOCGABS(ABS_MT_POSITION_Y),
|
|
&absinfo);
|
|
device->abs.min_y = absinfo.minimum;
|
|
device->abs.max_y = absinfo.maximum;
|
|
device->is_mt = 1;
|
|
device->mt.slot = 0;
|
|
device->caps |= EVDEV_TOUCH;
|
|
}
|
|
}
|
|
if (TEST_BIT(ev_bits, EV_REL)) {
|
|
ioctl(device->fd, EVIOCGBIT(EV_REL, sizeof(rel_bits)),
|
|
rel_bits);
|
|
if (TEST_BIT(rel_bits, REL_X) || TEST_BIT(rel_bits, REL_Y))
|
|
device->caps |= EVDEV_MOTION_REL;
|
|
}
|
|
if (TEST_BIT(ev_bits, EV_KEY)) {
|
|
has_key = 1;
|
|
ioctl(device->fd, EVIOCGBIT(EV_KEY, sizeof(key_bits)),
|
|
key_bits);
|
|
if (TEST_BIT(key_bits, BTN_TOOL_FINGER) &&
|
|
!TEST_BIT(key_bits, BTN_TOOL_PEN) &&
|
|
has_abs)
|
|
device->dispatch = evdev_touchpad_create(device);
|
|
for (i = KEY_ESC; i < KEY_MAX; i++) {
|
|
if (i >= BTN_MISC && i < KEY_OK)
|
|
continue;
|
|
if (TEST_BIT(key_bits, i)) {
|
|
device->caps |= EVDEV_KEYBOARD;
|
|
break;
|
|
}
|
|
}
|
|
for (i = BTN_MISC; i < KEY_OK; i++) {
|
|
if (TEST_BIT(key_bits, i)) {
|
|
device->caps |= EVDEV_BUTTON;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (TEST_BIT(ev_bits, EV_LED)) {
|
|
device->caps |= EVDEV_KEYBOARD;
|
|
}
|
|
|
|
/* This rule tries to catch accelerometer devices and opt out. We may
|
|
* want to adjust the protocol later adding a proper event for dealing
|
|
* with accelerometers and implement here accordingly */
|
|
if (has_abs && !has_key && !device->is_mt) {
|
|
weston_log("input device %s, %s "
|
|
"ignored: unsupported device type\n",
|
|
device->devname, device->devnode);
|
|
return -1;
|
|
}
|
|
|
|
if ((device->caps &
|
|
(EVDEV_MOTION_ABS | EVDEV_MOTION_REL | EVDEV_BUTTON))) {
|
|
weston_seat_init_pointer(device->seat);
|
|
weston_log("input device %s, %s is a pointer\n",
|
|
device->devname, device->devnode);
|
|
}
|
|
if ((device->caps & EVDEV_KEYBOARD)) {
|
|
weston_seat_init_keyboard(device->seat, NULL);
|
|
weston_log("input device %s, %s is a keyboard\n",
|
|
device->devname, device->devnode);
|
|
}
|
|
if ((device->caps & EVDEV_TOUCH)) {
|
|
weston_seat_init_touch(device->seat);
|
|
weston_log("input device %s, %s is a touch device\n",
|
|
device->devname, device->devnode);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct evdev_device *
|
|
evdev_device_create(struct weston_seat *seat, const char *path, int device_fd)
|
|
{
|
|
struct evdev_device *device;
|
|
struct weston_compositor *ec;
|
|
char devname[256] = "unknown";
|
|
|
|
device = malloc(sizeof *device);
|
|
if (device == NULL)
|
|
return NULL;
|
|
memset(device, 0, sizeof *device);
|
|
|
|
ec = seat->compositor;
|
|
device->output =
|
|
container_of(ec->output_list.next, struct weston_output, link);
|
|
|
|
device->seat = seat;
|
|
device->is_mt = 0;
|
|
device->mtdev = NULL;
|
|
device->devnode = strdup(path);
|
|
device->mt.slot = -1;
|
|
device->rel.dx = 0;
|
|
device->rel.dy = 0;
|
|
device->dispatch = NULL;
|
|
device->fd = device_fd;
|
|
|
|
ioctl(device->fd, EVIOCGNAME(sizeof(devname)), devname);
|
|
device->devname = strdup(devname);
|
|
|
|
if (evdev_configure_device(device) == -1)
|
|
goto err1;
|
|
|
|
/* If the dispatch was not set up use the fallback. */
|
|
if (device->dispatch == NULL)
|
|
device->dispatch = fallback_dispatch_create();
|
|
if (device->dispatch == NULL)
|
|
goto err1;
|
|
|
|
|
|
if (device->is_mt) {
|
|
device->mtdev = mtdev_new_open(device->fd);
|
|
if (!device->mtdev)
|
|
weston_log("mtdev failed to open for %s\n", path);
|
|
}
|
|
|
|
device->source = wl_event_loop_add_fd(ec->input_loop, device->fd,
|
|
WL_EVENT_READABLE,
|
|
evdev_device_data, device);
|
|
if (device->source == NULL)
|
|
goto err2;
|
|
|
|
return device;
|
|
|
|
err2:
|
|
device->dispatch->interface->destroy(device->dispatch);
|
|
err1:
|
|
free(device->devname);
|
|
free(device->devnode);
|
|
free(device);
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
evdev_device_destroy(struct evdev_device *device)
|
|
{
|
|
struct evdev_dispatch *dispatch;
|
|
|
|
dispatch = device->dispatch;
|
|
if (dispatch)
|
|
dispatch->interface->destroy(dispatch);
|
|
|
|
wl_event_source_remove(device->source);
|
|
wl_list_remove(&device->link);
|
|
if (device->mtdev)
|
|
mtdev_close_delete(device->mtdev);
|
|
close(device->fd);
|
|
free(device->devname);
|
|
free(device->devnode);
|
|
free(device);
|
|
}
|
|
|
|
void
|
|
evdev_notify_keyboard_focus(struct weston_seat *seat,
|
|
struct wl_list *evdev_devices)
|
|
{
|
|
struct evdev_device *device;
|
|
struct wl_array keys;
|
|
unsigned int i, set;
|
|
char evdev_keys[(KEY_CNT + 7) / 8];
|
|
char all_keys[(KEY_CNT + 7) / 8];
|
|
uint32_t *k;
|
|
int ret;
|
|
|
|
if (!seat->seat.keyboard)
|
|
return;
|
|
|
|
memset(all_keys, 0, sizeof all_keys);
|
|
wl_list_for_each(device, evdev_devices, link) {
|
|
memset(evdev_keys, 0, sizeof evdev_keys);
|
|
ret = ioctl(device->fd,
|
|
EVIOCGKEY(sizeof evdev_keys), evdev_keys);
|
|
if (ret < 0) {
|
|
weston_log("failed to get keys for device %s\n",
|
|
device->devnode);
|
|
continue;
|
|
}
|
|
for (i = 0; i < ARRAY_LENGTH(evdev_keys); i++)
|
|
all_keys[i] |= evdev_keys[i];
|
|
}
|
|
|
|
wl_array_init(&keys);
|
|
for (i = 0; i < KEY_CNT; i++) {
|
|
set = all_keys[i >> 3] & (1 << (i & 7));
|
|
if (set) {
|
|
k = wl_array_add(&keys, sizeof *k);
|
|
*k = i;
|
|
}
|
|
}
|
|
|
|
notify_keyboard_focus_in(seat, &keys, STATE_UPDATE_AUTOMATIC);
|
|
|
|
wl_array_release(&keys);
|
|
}
|
|
|