[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>

1 files changed, 13 insertions, 11 deletions

diff --git a/drivers/media/usb/dvb-usb/dib0700_devices.c b/drivers/media/usb/dvb-usb/dib0700_devices.c
index 501947eaacfe..91e5ebb0f2c7 100644
--- a/drivers/media/usb/dvb-usb/dib0700_devices.c
+++ b/drivers/media/usb/dvb-usb/dib0700_devices.c
@@ -512,7 +512,8 @@ static u8 rc_request[] = { REQUEST_POLL_RC, 0 };
 static int dib0700_rc_query_old_firmware(struct dvb_usb_device *d)
 {
 	u8 key[4];
-	u32 keycode;
+	enum rc_type protocol;
+	u32 scancode;
 	u8 toggle;
 	int i;
 	struct dib0700_state *st = d->priv;
@@ -539,28 +540,29 @@ static int dib0700_rc_query_old_firmware(struct dvb_usb_device *d)
 
 	dib0700_rc_setup(d, NULL); /* reset ir sensor data to prevent false events */
 
-	d->last_event = 0;
 	switch (d->props.rc.core.protocol) {
 	case RC_BIT_NEC:
 		/* NEC protocol sends repeat code as 0 0 0 FF */
 		if ((key[3-2] == 0x00) && (key[3-3] == 0x00) &&
-		    (key[3] == 0xff))
-			keycode = d->last_event;
-		else {
-			keycode = key[3-2] << 8 | key[3-3];
-			d->last_event = keycode;
+		    (key[3] == 0xff)) {
+			rc_repeat(d->rc_dev);
+			return 0;
 		}
 
-		rc_keydown(d->rc_dev, keycode, 0);
+		protocol = RC_TYPE_NEC;
+		scancode = RC_SCANCODE_NEC(key[3-2], key[3-3]);
+		toggle = 0;
 		break;
+
 	default:
 		/* RC-5 protocol changes toggle bit on new keypress */
-		keycode = key[3-2] << 8 | key[3-3];
+		protocol = RC_TYPE_RC5;
+		scancode = RC_SCANCODE_RC5(key[3-2], key[3-3]);
 		toggle = key[3-1];
-		rc_keydown(d->rc_dev, keycode, toggle);
-
 		break;
 	}
+
+	rc_keydown(d->rc_dev, protocol, scancode, toggle);
 	return 0;
 }