Basic cloning & config.

Also fixed a few bugs and added a few features.

py/cinput.py

@@ -68,7 +68,10 @@ class InputDevice(object):
     def get_name(self):
         return get_input_name(self._f)
 
+    # TODO: Maybe do not export keys?
     def get_exposed_events(self):
+        """
+        """
         d = dict()
         for k, v in events.iteritems():
             l = get_keys(self._f, v)
@@ -76,7 +79,7 @@ class InputDevice(object):
                 d[k] = []
                 for ev in l:
                     try:
-                        d[k].append(event_keys[v][ev])
+                        d[k].append(rev_event_keys[v][ev])
                     except KeyError:
                         pass
 
@@ -91,7 +94,8 @@ class InputDevice(object):
 
 
     def __del__(self):
-        os.close(self._f)
+        if hasattr(self, '_f'):
+            os.close(self._f)
 
 
 def open_uinput():
@@ -105,15 +109,10 @@ def open_uinput():
             return None
     return f
 
-def write_uinput_device_info(name):
+def write_uinput_device_info(f, name):
     """
     Create uinput device
     """
-    f = open_uinput()
-
-    if not f:
-        print 'Failed to open uinput'
-        return None
 
     # Add keys, etc
     #handle_specs(f, specs)
@@ -142,22 +141,28 @@ def free_uinput_device(f):
 
 class UInputDevice(object):
 
-    def __init__(self, name, specs):
-        # TODO: Other methods for specs etc
-        # TODO: Maybe don't create the device yet; add a seperate method?
-        # TODO: Take inspiration from the config.h files ! Also allow using
-        # direct methods / programming it rather than just the dict as config
-        self._f = write_uinput_device_info(name)
+    def __init__(self):
+        self._f = open_uinput()
+        if not self._f:
+            print 'Failed to open uinput'
+            raise OSError
 
-    def expose_event(evt, evk):
-        evbit = evbits[ev]
+    def setup(self, name):
+        write_uinput_device_info(self._f, name)
+
+    def expose_event_type(self, evt):
+        fcntl.ioctl(self._f, UI_SET_EVBIT, evt)
+
+    def expose_event(self, evt, evk):
+        evbit = evbits[evt]
         fcntl.ioctl(self._f, evbit, evk)
 
-    def fire_event(ev):
+    def fire_event(self, ev):
         """
         """
         os.write(self._f, buffer(ev)[:])
 
     def __del__(self):
-        free_uinput_device(self._f)
+        if hasattr(self, '_f'):
+            free_uinput_device(self._f)
 

py/create.py

@@ -1,19 +1,89 @@
-import linux_uinput, ctypes, fcntl, os
-
+import linux_uinput, ctypes, fcntl, os, sys
 
 from cinput import *
 
-def handle_specs(f, s):
-    print 'ioctl:', fcntl.ioctl(f, UI_SET_EVBIT, EV_KEY)
-    print 'ioctl:', fcntl.ioctl(f, UI_SET_KEYBIT, KEY_UP)
+clone = True
+
+passthrough = lambda x: -x*2
+config = {
+        EV_REL : {
+            REL_X : {
+                'type' : EV_REL,
+                'code' : REL_X,
+                'value': passthrough
+            },
+            REL_Y : {
+                'type': EV_REL,
+                'code': REL_Y,
+                'value' : passthrough
+            }
+        },
+        EV_KEY : {
+            BTN_LEFT : {
+                'type' : EV_KEY,
+                'code' : BTN_LEFT,
+                'value' : passthrough
+            }
+        }
+}
 
 
-d = UInputDevice('Example input device', None)
+f = InputDevice(sys.argv[1] if len(sys.argv) == 2 else "/dev/input/event3")
 
-import time
-time.sleep(5)
+d = UInputDevice()
 
 
+if clone:
+    e = f.get_exposed_events()
+    for k, v in e.iteritems():
+        t = events[k]
+        if t == EV_SYN:
+            continue
+        d.expose_event_type(t)
+        for key in v:
+            tt = event_keys[t][key]
+            d.expose_event(t, tt)
+
+        print k + ':', ', '.join(v)
+else:
+    for evt, v in config.iteritems():
+        for code, dat in v.iteritems():
+            d.expose_event_type(dat['type'])
+            d.expose_event(dat['type'], dat['code'])
+
+
+d.setup('Example input device' )
+
+
+def map_ev(ev):
+
+    _type = ev.type
+    if _type in config:
+        typemaps = config[_type]
+        if ev.code in typemaps:
+            info = typemaps[ev.code]
+            ev.type = info['type']
+            ev.code = info['code']
+            ev.value = info['value'](ev.value)
+
+    return ev
+
+while True:
+    ev = f.next_event()
+
+    if not clone:
+        ev = map_ev(ev)
+
+    d.fire_event(ev)
+
+    try:
+        #print ev.time.tv_sec, ev.time.tv_usec
+        s = '%s %s %d' % (rev_events[ev.type], rev_event_keys[ev.type][ev.code], ev.value)
+        print 'Event type:', s
+
+    except KeyError:
+       pass
+
 # Config
 dev = {
    "input_devices" : [

py/linux_input.py

@@ -7,7 +7,6 @@ from gen import input_constants_dict as icd
 for k, v in icd.iteritems():
     locals()[k] = v
 
-
 rdict = lambda x: dict(map(lambda (k, v): (v, k), x.iteritems()))
 
 events = dict(filter(lambda (k, v): k in ["EV_SYN", "EV_KEY", "EV_REL",
@@ -15,20 +14,6 @@ events = dict(filter(lambda (k, v): k in ["EV_SYN", "EV_KEY", "EV_REL",
     "EV_FF", "EV_PWR", "EV_FF_STATUS"], icd.iteritems()))
 rev_events = rdict(events)
 
-
-# event sets
-"""
-static const char * const * const names[EV_MAX + 1] = {
-	[0 ... EV_MAX] = NULL,
-	[EV_SYN] = events,			[EV_KEY] = keys,
-	[EV_REL] = relatives,			[EV_ABS] = absolutes,
-	[EV_MSC] = misc,			[EV_LED] = leds,
-	[EV_SND] = sounds,			[EV_REP] = repeats,
-	[EV_SW] = switches,
-	[EV_FF] = force,			[EV_FF_STATUS] = forcestatus,
-};
-"""
-
 filter_event = lambda c: dict(filter(lambda (k, v): c(k), icd.iteritems()))
 
 keys = filter_event(lambda x: x.startswith("KEY_") or x.startswith("BTN_"))
@@ -58,11 +43,28 @@ rev_repeats = rdict(repeats)
 switches = filter_event(lambda x: x.startswith("SW_"))
 rev_switches = rdict(switches)
 
-del rdict
 
 force, forcestatus = {}, {}
+rev_force = rdict(force)
+rev_forcestatus = rdict(forcestatus)
+
+del rdict
 
 event_keys = {
+        EV_SYN: syn,
+        EV_KEY: keys,
+        EV_REL: rel,
+        EV_ABS: absaxes,
+        EV_MSC: misc,
+        EV_LED: leds,
+        EV_SND: sounds,
+        EV_REP: repeats,
+        EV_SW:  switches,
+        EV_FF:  force,
+        EV_FF_STATUS: forcestatus
+}
+
+rev_event_keys = {
         EV_SYN: rev_syn,
         EV_KEY: rev_keys,
         EV_REL: rev_rel,
@@ -72,11 +74,10 @@ event_keys = {
         EV_SND: rev_sounds,
         EV_REP: rev_repeats,
         EV_SW:  rev_switches,
-        EV_FF:  force,
-        EV_FF_STATUS: forcestatus
+        EV_FF:  rev_force,
+        EV_FF_STATUS: rev_forcestatus
 }
 
-
 class timeval(ctypes.Structure):
     _fields_ = [("tv_sec", ctypes.c_long), ("tv_usec", ctypes.c_long)]
 

py/read.py

@@ -18,7 +18,7 @@ while True:
 
     try:
         print ev.time.tv_sec, ev.time.tv_usec
-        s = '%s %s %d' % (rev_events[ev.type], event_keys[ev.type][ev.code], ev.value)
+        s = '%s %s %d' % (rev_events[ev.type], rev_event_keys[ev.type][ev.code], ev.value)
         print 'Event type:', s
     except KeyError:
        pass