Input: ressurect EVIOCGREP and EVIOCSREP

While writing to an event device allows to set repeat rate for an
individual input device there is no way to retrieve current settings
so we need to ressurect EVIOCGREP. Also ressurect EVIOCSREP so we
have a symmetrical interface.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/evdev.c

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index a34e3d9..ba325f1 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -403,6 +403,27 @@
 		case EVIOCGID:
 			if (copy_to_user(p, &dev->id, sizeof(struct input_id)))
 				return -EFAULT;
+			return 0;
+
+		case EVIOCGREP:
+			if (!test_bit(EV_REP, dev->evbit))
+				return -ENOSYS;
+			if (put_user(dev->rep[REP_DELAY], ip))
+				return -EFAULT;
+			if (put_user(dev->rep[REP_PERIOD], ip + 1))
+				return -EFAULT;
+			return 0;
+
+		case EVIOCSREP:
+			if (!test_bit(EV_REP, dev->evbit))
+				return -ENOSYS;
+			if (get_user(u, ip))
+				return -EFAULT;
+			if (get_user(v, ip + 1))
+				return -EFAULT;
+
+			input_event(dev, EV_REP, REP_DELAY, u);
+			input_event(dev, EV_REP, REP_PERIOD, v);
 
 			return 0;