efl/src/lib/ecore_drm/ecore_drm_evdev.c

361 lines
8.6 KiB
C

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
/* copied from udev/extras/input_id/input_id.c */
/* we must use this kernel-compatible implementation */
#define BITS_PER_LONG (sizeof(unsigned long) * 8)
#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
#define OFF(x) ((x)%BITS_PER_LONG)
#define BIT(x) (1UL<<OFF(x))
#define LONG(x) ((x)/BITS_PER_LONG)
#define TEST_BIT(array, bit) ((array[LONG(bit)] >> OFF(bit)) & 1)
/* end copied */
#include "ecore_drm_private.h"
#include <sys/ioctl.h>
#include <linux/input.h>
/* local functions */
static Eina_Bool
_device_configure(Ecore_Drm_Evdev *edev)
{
Eina_Bool ret = EINA_FALSE;
if (!edev) return EINA_FALSE;
if ((edev->caps & (EVDEV_MOTION_ABS | EVDEV_MOTION_REL)) &&
(edev->caps & EVDEV_BUTTON))
{
DBG("Input device %s is a pointer", edev->name);
edev->seat_caps |= EVDEV_SEAT_POINTER;
ret = EINA_TRUE;
}
if (edev->caps & EVDEV_KEYBOARD)
{
DBG("Input device %s is a keyboard", edev->name);
edev->seat_caps |= EVDEV_SEAT_KEYBOARD;
ret = EINA_TRUE;
}
if (edev->caps & EVDEV_TOUCH)
{
DBG("Input device %s is a touchpad", edev->name);
edev->seat_caps |= EVDEV_SEAT_TOUCH;
ret = EINA_TRUE;
}
return ret;
}
static Eina_Bool
_device_handle(Ecore_Drm_Evdev *edev)
{
struct input_absinfo absinfo;
unsigned long dev_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)];
/* Eina_Bool have_key = EINA_FALSE; */
Eina_Bool have_abs = EINA_FALSE;
if (!edev) return EINA_FALSE;
ioctl(edev->fd, EVIOCGBIT(0, sizeof(dev_bits)), dev_bits);
if (TEST_BIT(dev_bits, EV_ABS))
{
have_abs = EINA_TRUE;
ioctl(edev->fd, EVIOCGBIT(EV_ABS, sizeof(abs_bits)), abs_bits);
if ((TEST_BIT(abs_bits, ABS_WHEEL)) ||
(TEST_BIT(abs_bits, ABS_GAS)) ||
(TEST_BIT(abs_bits, ABS_BRAKE)) ||
(TEST_BIT(abs_bits, ABS_HAT0X)))
{
/* ignore joystick */
return EINA_FALSE;
}
if (TEST_BIT(abs_bits, ABS_X))
{
ioctl(edev->fd, EVIOCGABS(ABS_X), &absinfo);
edev->abs.min_x = absinfo.minimum;
edev->abs.max_x = absinfo.maximum;
edev->caps |= EVDEV_MOTION_ABS;
}
if (TEST_BIT(abs_bits, ABS_Y))
{
ioctl(edev->fd, EVIOCGABS(ABS_Y), &absinfo);
edev->abs.min_y = absinfo.minimum;
edev->abs.max_y = absinfo.maximum;
edev->caps |= EVDEV_MOTION_ABS;
}
if ((TEST_BIT(abs_bits, ABS_MT_POSITION_X)) &&
(TEST_BIT(abs_bits, ABS_MT_POSITION_Y)))
{
DBG("Handle MultiTouch Device: %s", edev->path);
}
}
if (TEST_BIT(dev_bits, EV_REL))
{
ioctl(edev->fd, EVIOCGBIT(EV_REL, sizeof(rel_bits)), rel_bits);
if ((TEST_BIT(rel_bits, REL_X)) || (TEST_BIT(rel_bits, REL_Y)))
edev->caps |= EVDEV_MOTION_REL;
}
if (TEST_BIT(dev_bits, EV_KEY))
{
unsigned int i = 0;
/* have_key = EINA_TRUE; */
ioctl(edev->fd, EVIOCGBIT(EV_KEY, sizeof(key_bits)), key_bits);
if (have_abs)
{
if ((TEST_BIT(key_bits, BTN_TOOL_FINGER)) &&
(!TEST_BIT(key_bits, BTN_TOOL_PEN)))
{
DBG("Device Is Touchpad: %s", edev->path);
}
}
for (i = KEY_ESC; i < KEY_MAX; i++)
{
if ((i >= BTN_MISC) && (i < KEY_OK)) continue;
if (TEST_BIT(key_bits, i))
{
edev->caps |= EVDEV_KEYBOARD;
break;
}
}
if (TEST_BIT(key_bits, BTN_TOUCH))
edev->caps |= EVDEV_TOUCH;
for (i = BTN_MISC; i < BTN_JOYSTICK; i++)
{
if (TEST_BIT(key_bits, i))
{
edev->caps |= EVDEV_BUTTON;
edev->caps &= ~EVDEV_TOUCH;
break;
}
}
}
if (TEST_BIT(dev_bits, EV_LED)) edev->caps |= EVDEV_KEYBOARD;
return EINA_TRUE;
}
static void
_device_notify_key(Ecore_Drm_Evdev *dev, struct input_event *event, unsigned int timestamp EINA_UNUSED)
{
DBG("Key Event");
DBG("\tCode: %d", event->code);
DBG("\tValue: %d", event->value);
if ((event->code >= KEY_ESC) && (event->code <= KEY_COMPOSE))
{
/* ignore key repeat */
if (event->value == 2)
{
DBG("\tKey Repeat");
}
}
}
static void
_device_process_flush(Ecore_Drm_Evdev *dev, unsigned int timestamp EINA_UNUSED)
{
switch (dev->pending_event)
{
case EVDEV_NONE:
return;
case EVDEV_RELATIVE_MOTION:
goto out;
break;
case EVDEV_ABSOLUTE_MT_DOWN:
goto out;
break;
case EVDEV_ABSOLUTE_MT_MOTION:
goto out;
break;
case EVDEV_ABSOLUTE_MT_UP:
goto out;
break;
case EVDEV_ABSOLUTE_TOUCH_DOWN:
goto out;
break;
case EVDEV_ABSOLUTE_MOTION:
goto out;
break;
case EVDEV_ABSOLUTE_TOUCH_UP:
goto out;
break;
}
out:
dev->pending_event = EVDEV_NONE;
}
static void
_device_process_key(Ecore_Drm_Evdev *dev, struct input_event *event, unsigned int timestamp)
{
if (event->code == BTN_TOUCH)
{
/* TODO: check for mt device */
return;
}
_device_process_flush(dev, timestamp);
switch (event->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:
/* TODO: notify button */
break;
default:
_device_notify_key(dev, event, timestamp);
break;
}
}
static void
_device_process(Ecore_Drm_Evdev *dev, struct input_event *event, int count)
{
struct input_event *ev, *end;
unsigned int timestamp = 0;
DBG("Evdev Device Process");
ev = event;
end = ev + count;
for (ev = event; ev < end; ev++)
{
timestamp = (ev->time.tv_sec * 1000) + (ev->time.tv_usec / 1000);
switch (ev->type)
{
case EV_KEY:
_device_process_key(dev, ev, timestamp);
break;
case EV_REL:
DBG("\tRelative Event");
break;
case EV_ABS:
DBG("\tAbsolute Event");
break;
case EV_SYN:
_device_process_flush(dev, timestamp);
break;
default:
break;
}
}
}
static Eina_Bool
_cb_device_data(void *data, Ecore_Fd_Handler *hdlr EINA_UNUSED)
{
Ecore_Drm_Evdev *edev;
struct input_event ev[32];
int len = 0;
if (!(edev = data)) return EINA_TRUE;
do
{
len = read(edev->fd, &ev, sizeof(ev));
if ((len < 0) || ((len % sizeof(ev[0])) != 0))
{
if ((len < 0) && (errno != EAGAIN) && (errno != EINTR))
{
ERR("Device Died");
}
return EINA_TRUE;
}
edev->event_process(edev, ev, (len / sizeof(ev[0])));
} while (len > 0);
return EINA_TRUE;
}
/* external functions */
Ecore_Drm_Evdev *
_ecore_drm_evdev_device_create(Ecore_Drm_Seat *seat, const char *path, int fd)
{
Ecore_Drm_Evdev *edev;
char name[256] = "unknown";
if (!(edev = calloc(1, sizeof(Ecore_Drm_Evdev))))
return NULL;
edev->seat = seat;
edev->path = eina_stringshare_add(path);
edev->fd = fd;
if (ioctl(edev->fd, EVIOCGNAME(sizeof(name)), name) < 0)
DBG("Error getting device name: %m");
name[sizeof(name) - 1] = '\0';
edev->name = eina_stringshare_add(name);
if (!_device_handle(edev))
{
ERR("Unhandled Input Device: %s", name);
_ecore_drm_evdev_device_destroy(edev);
return NULL;
}
if (!_device_configure(edev))
{
_ecore_drm_evdev_device_destroy(edev);
return NULL;
}
edev->event_process = _device_process;
edev->hdlr =
ecore_main_fd_handler_add(edev->fd, ECORE_FD_READ,
_cb_device_data, edev, NULL, NULL);
if (!edev->hdlr)
{
ERR("Could not create fd handler");
_ecore_drm_evdev_device_destroy(edev);
return NULL;
}
return edev;
}
void
_ecore_drm_evdev_device_destroy(Ecore_Drm_Evdev *dev)
{
if (!dev) return;
if (dev->path) eina_stringshare_del(dev->path);
if (dev->name) eina_stringshare_del(dev->name);
if (dev->hdlr) ecore_main_fd_handler_del(dev->hdlr);
free(dev);
}