[media] rc-core: document the protocol type

Right now the protocol information is not preserved, rc-core gets handed a
scancode but has no idea which protocol it corresponds to.

This patch (which required reading through the source/keymap for all drivers,
not fun) makes the protocol information explicit which is important
documentation and makes it easier to e.g. support multiple protocols with one
decoder (think rc5 and rc-streamzap). The information isn't used yet so there
should be no functional changes.

[m.chehab@samsung.com: rebased, added cxusb and removed bad whitespacing]
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/usb/dvb-usb/pctv452e.c

@@ -565,12 +565,12 @@ static int pctv452e_rc_query(struct dvb_usb_device *d)
 
 	if ((rx[3] == 9) &&  (rx[12] & 0x01)) {
 		/* got a "press" event */
-		state->last_rc_key = (rx[7] << 8) | rx[6];
+		state->last_rc_key = RC_SCANCODE_RC5(rx[7], rx[6]);
 		if (debug > 2)
 			info("%s: cmd=0x%02x sys=0x%02x\n",
 				__func__, rx[6], rx[7]);
 
-		rc_keydown(d->rc_dev, state->last_rc_key, 0);
+		rc_keydown(d->rc_dev, RC_TYPE_RC5, state->last_rc_key, 0);
 	} else if (state->last_rc_key) {
 		rc_keyup(d->rc_dev);
 		state->last_rc_key = 0;
@@ -927,7 +927,7 @@ static struct dvb_usb_device_properties pctv452e_properties = {
 
 	.rc.core = {
 		.rc_codes	= RC_MAP_DIB0700_RC5_TABLE,
-		.allowed_protos	= RC_BIT_UNKNOWN,
+		.allowed_protos	= RC_BIT_RC5,
 		.rc_query	= pctv452e_rc_query,
 		.rc_interval	= 100,
 	},
@@ -980,7 +980,7 @@ static struct dvb_usb_device_properties tt_connect_s2_3600_properties = {
 
 	.rc.core = {
 		.rc_codes	= RC_MAP_TT_1500,
-		.allowed_protos	= RC_BIT_UNKNOWN,
+		.allowed_protos	= RC_BIT_RC5,
 		.rc_query	= pctv452e_rc_query,
 		.rc_interval	= 100,
 	},