--- zzzz-none-000/linux-3.10.107/drivers/media/usb/dvb-usb/dib0700_core.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/media/usb/dvb-usb/dib0700_core.c	2021-02-04 17:41:59.000000000 +0000
@@ -651,22 +651,24 @@
 	return ret;
 }
 
-/* Number of keypresses to ignore before start repeating */
-#define RC_REPEAT_DELAY_V1_20 10
-
 /* This is the structure of the RC response packet starting in firmware 1.20 */
 struct dib0700_rc_response {
 	u8 report_id;
 	u8 data_state;
 	union {
-		u16 system16;
 		struct {
+			u8 system;
 			u8 not_system;
+			u8 data;
+			u8 not_data;
+		} nec;
+		struct {
+			u8 not_used;
 			u8 system;
-		};
+			u8 data;
+			u8 not_data;
+		} rc5;
 	};
-	u8 data;
-	u8 not_data;
 };
 #define RC_MSG_SIZE_V1_20 6
 
@@ -674,7 +676,8 @@
 {
 	struct dvb_usb_device *d = purb->context;
 	struct dib0700_rc_response *poll_reply;
-	u32 uninitialized_var(keycode);
+	enum rc_type protocol;
+	u32 keycode;
 	u8 toggle;
 
 	deb_info("%s()\n", __func__);
@@ -701,50 +704,62 @@
 
 	deb_data("IR ID = %02X state = %02X System = %02X %02X Cmd = %02X %02X (len %d)\n",
 		 poll_reply->report_id, poll_reply->data_state,
-		 poll_reply->system, poll_reply->not_system,
-		 poll_reply->data, poll_reply->not_data,
+		 poll_reply->nec.system, poll_reply->nec.not_system,
+		 poll_reply->nec.data, poll_reply->nec.not_data,
 		 purb->actual_length);
 
 	switch (d->props.rc.core.protocol) {
 	case RC_BIT_NEC:
+		protocol = RC_TYPE_NEC;
 		toggle = 0;
 
 		/* NEC protocol sends repeat code as 0 0 0 FF */
-		if ((poll_reply->system == 0x00) && (poll_reply->data == 0x00)
-		    && (poll_reply->not_data == 0xff)) {
+		if (poll_reply->nec.system     == 0x00 &&
+		    poll_reply->nec.not_system == 0x00 &&
+		    poll_reply->nec.data       == 0x00 &&
+		    poll_reply->nec.not_data   == 0xff) {
 			poll_reply->data_state = 2;
-			break;
+			rc_repeat(d->rc_dev);
+			goto resubmit;
 		}
 
-		if ((poll_reply->system ^ poll_reply->not_system) != 0xff) {
+		if ((poll_reply->nec.data ^ poll_reply->nec.not_data) != 0xff) {
+			deb_data("NEC32 protocol\n");
+			keycode = RC_SCANCODE_NEC32(poll_reply->nec.system     << 24 |
+						     poll_reply->nec.not_system << 16 |
+						     poll_reply->nec.data       << 8  |
+						     poll_reply->nec.not_data);
+		} else if ((poll_reply->nec.system ^ poll_reply->nec.not_system) != 0xff) {
 			deb_data("NEC extended protocol\n");
-			/* NEC extended code - 24 bits */
-			keycode = be16_to_cpu(poll_reply->system16) << 8 | poll_reply->data;
+			keycode = RC_SCANCODE_NECX(poll_reply->nec.system << 8 |
+						    poll_reply->nec.not_system,
+						    poll_reply->nec.data);
+
 		} else {
 			deb_data("NEC normal protocol\n");
-			/* normal NEC code - 16 bits */
-			keycode = poll_reply->system << 8 | poll_reply->data;
+			keycode = RC_SCANCODE_NEC(poll_reply->nec.system,
+						   poll_reply->nec.data);
 		}
 
 		break;
 	default:
 		deb_data("RC5 protocol\n");
-		/* RC5 Protocol */
+		protocol = RC_TYPE_RC5;
 		toggle = poll_reply->report_id;
-		keycode = poll_reply->system << 8 | poll_reply->data;
+		keycode = RC_SCANCODE_RC5(poll_reply->rc5.system, poll_reply->rc5.data);
 
-		break;
-	}
+		if ((poll_reply->rc5.data ^ poll_reply->rc5.not_data) != 0xff) {
+			/* Key failed integrity check */
+			err("key failed integrity check: %02x %02x %02x %02x",
+			    poll_reply->rc5.not_used, poll_reply->rc5.system,
+			    poll_reply->rc5.data, poll_reply->rc5.not_data);
+			goto resubmit;
+		}
 
-	if ((poll_reply->data + poll_reply->not_data) != 0xff) {
-		/* Key failed integrity check */
-		err("key failed integrity check: %04x %02x %02x",
-		    poll_reply->system,
-		    poll_reply->data, poll_reply->not_data);
-		goto resubmit;
+		break;
 	}
 
-	rc_keydown(d->rc_dev, keycode, toggle);
+	rc_keydown(d->rc_dev, protocol, keycode, toggle);
 
 resubmit:
 	/* Clean the buffer before we requeue */
@@ -754,17 +769,20 @@
 	usb_submit_urb(purb, GFP_ATOMIC);
 }
 
-int dib0700_rc_setup(struct dvb_usb_device *d)
+int dib0700_rc_setup(struct dvb_usb_device *d, struct usb_interface *intf)
 {
 	struct dib0700_state *st = d->priv;
 	struct urb *purb;
-	int ret;
+	const struct usb_endpoint_descriptor *e;
+	int ret, rc_ep = 1;
+	unsigned int pipe = 0;
 
 	/* Poll-based. Don't initialize bulk mode */
-	if (st->fw_version < 0x10200)
+	if (st->fw_version < 0x10200 || !intf)
 		return 0;
 
 	/* Starting in firmware 1.20, the RC info is provided on a bulk pipe */
+
 	purb = usb_alloc_urb(0, GFP_KERNEL);
 	if (purb == NULL) {
 		err("rc usb alloc urb failed");
@@ -779,9 +797,35 @@
 	}
 
 	purb->status = -EINPROGRESS;
-	usb_fill_bulk_urb(purb, d->udev, usb_rcvbulkpipe(d->udev, 1),
-			  purb->transfer_buffer, RC_MSG_SIZE_V1_20,
-			  dib0700_rc_urb_completion, d);
+
+	/*
+	 * Some devices like the Hauppauge NovaTD model 52009 use an interrupt
+	 * endpoint, while others use a bulk one.
+	 */
+	e = &intf->altsetting[0].endpoint[rc_ep].desc;
+	if (usb_endpoint_dir_in(e)) {
+		if (usb_endpoint_xfer_bulk(e)) {
+			pipe = usb_rcvbulkpipe(d->udev, rc_ep);
+			usb_fill_bulk_urb(purb, d->udev, pipe,
+					  purb->transfer_buffer,
+					  RC_MSG_SIZE_V1_20,
+					  dib0700_rc_urb_completion, d);
+
+		} else if (usb_endpoint_xfer_int(e)) {
+			pipe = usb_rcvintpipe(d->udev, rc_ep);
+			usb_fill_int_urb(purb, d->udev, pipe,
+					  purb->transfer_buffer,
+					  RC_MSG_SIZE_V1_20,
+					  dib0700_rc_urb_completion, d, 1);
+		}
+	}
+
+	if (!pipe) {
+		err("There's no endpoint for remote controller");
+		kfree(purb->transfer_buffer);
+		usb_free_urb(purb);
+		return 0;
+	}
 
 	ret = usb_submit_urb(purb, GFP_ATOMIC);
 	if (ret) {
@@ -820,7 +864,7 @@
 			else
 				dev->props.rc.core.bulk_mode = false;
 
-			dib0700_rc_setup(dev);
+			dib0700_rc_setup(dev, intf);
 
 			return 0;
 		}