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#include "mtouch.h"
/******************************************************/
int configure_mtouch(struct MTouch *mt, int fd)
{
int rc = read_capabilities(&mt->caps, fd);
if (rc < 0)
return rc;
output_capabilities(&mt->caps);
return 0;
}
/******************************************************/
int open_mtouch(struct MTouch *mt, int fd)
{
int rc;
init_iobuf(&mt->buf);
init_hwdata(&mt->hw);
init_state(&mt->os);
init_state(&mt->ns);
if (mt->grabbed)
return 0;
SYSCALL(rc = ioctl(fd, EVIOCGRAB, (pointer)1));
if (rc < 0) {
xf86Msg(X_WARNING, "multitouch: cannot grab device\n");
return rc;
}
mt->grabbed = 1;
return 0;
}
/******************************************************/
void close_mtouch(struct MTouch *mt, int fd)
{
int rc;
if (!mt->grabbed)
return;
SYSCALL(rc = ioctl(fd, EVIOCGRAB, (pointer)0));
if (rc < 0)
xf86Msg(X_WARNING, "multitouch: cannot ungrab device\n");
mt->grabbed = 0;
}
/******************************************************/
bool read_synchronized_event(struct MTouch *mt, int fd)
{
const struct input_event* ev;
while(ev = get_iobuf_event(&mt->buf, fd))
if (read_hwdata(&mt->hw, ev))
return 1;
return 0;
}
/******************************************************/
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