1 files changed, 59 insertions, 9 deletions

diff --git a/drivers/media/video/uvc/uvc_v4l2.c b/drivers/media/video/uvc/uvc_v4l2.c
index 9005a8d9d5f8..543a80395b7f 100644
--- a/drivers/media/video/uvc/uvc_v4l2.c
+++ b/drivers/media/video/uvc/uvc_v4l2.c
@@ -538,6 +538,20 @@ static int uvc_v4l2_release(struct file *file)
 	return 0;
 }
 
+static void uvc_v4l2_ioctl_warn(void)
+{
+	static int warned;
+
+	if (warned)
+		return;
+
+	uvc_printk(KERN_INFO, "Deprecated UVCIOC_CTRL_{ADD,MAP_OLD,GET,SET} "
+		   "ioctls will be removed in 2.6.42.\n");
+	uvc_printk(KERN_INFO, "See http://www.ideasonboard.org/uvc/upgrade/ "
+		   "for upgrade instructions.\n");
+	warned = 1;
+}
+
 static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 {
 	struct video_device *vdev = video_devdata(file);
@@ -1018,21 +1032,40 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 		uvc_trace(UVC_TRACE_IOCTL, "Unsupported ioctl 0x%08x\n", cmd);
 		return -EINVAL;
 
-	/* Dynamic controls. */
-	case UVCIOC_CTRL_ADD:
-		/* Legacy ioctl, kept for API compatibility reasons */
+	/* Dynamic controls. UVCIOC_CTRL_ADD, UVCIOC_CTRL_MAP_OLD,
+	 * UVCIOC_CTRL_GET and UVCIOC_CTRL_SET are deprecated and scheduled for
+	 * removal in 2.6.42.
+	 */
+	case __UVCIOC_CTRL_ADD:
+		uvc_v4l2_ioctl_warn();
 		return -EEXIST;
 
-	case UVCIOC_CTRL_MAP_OLD:
+	case __UVCIOC_CTRL_MAP_OLD:
+		uvc_v4l2_ioctl_warn();
+	case __UVCIOC_CTRL_MAP:
 	case UVCIOC_CTRL_MAP:
 		return uvc_ioctl_ctrl_map(chain, arg,
-					  cmd == UVCIOC_CTRL_MAP_OLD);
+					  cmd == __UVCIOC_CTRL_MAP_OLD);
 
-	case UVCIOC_CTRL_GET:
-		return uvc_xu_ctrl_query(chain, arg, 0);
+	case __UVCIOC_CTRL_GET:
+	case __UVCIOC_CTRL_SET:
+	{
+		struct uvc_xu_control *xctrl = arg;
+		struct uvc_xu_control_query xqry = {
+			.unit		= xctrl->unit,
+			.selector	= xctrl->selector,
+			.query		= cmd == __UVCIOC_CTRL_GET
+					? UVC_GET_CUR : UVC_SET_CUR,
+			.size		= xctrl->size,
+			.data		= xctrl->data,
+		};
+
+		uvc_v4l2_ioctl_warn();
+		return uvc_xu_ctrl_query(chain, &xqry);
+	}
 
-	case UVCIOC_CTRL_SET:
-		return uvc_xu_ctrl_query(chain, arg, 1);
+	case UVCIOC_CTRL_QUERY:
+		return uvc_xu_ctrl_query(chain, arg);
 
 	default:
 		uvc_trace(UVC_TRACE_IOCTL, "Unknown ioctl 0x%08x\n", cmd);
@@ -1081,6 +1114,20 @@ static unsigned int uvc_v4l2_poll(struct file *file, poll_table *wait)
 	return uvc_queue_poll(&stream->queue, file, wait);
 }
 
+#ifndef CONFIG_MMU
+static unsigned long uvc_v4l2_get_unmapped_area(struct file *file,
+		unsigned long addr, unsigned long len, unsigned long pgoff,
+		unsigned long flags)
+{
+	struct uvc_fh *handle = file->private_data;
+	struct uvc_streaming *stream = handle->stream;
+
+	uvc_trace(UVC_TRACE_CALLS, "uvc_v4l2_get_unmapped_area\n");
+
+	return uvc_queue_get_unmapped_area(&stream->queue, pgoff);
+}
+#endif
+
 const struct v4l2_file_operations uvc_fops = {
 	.owner		= THIS_MODULE,
 	.open		= uvc_v4l2_open,
@@ -1089,5 +1136,8 @@ const struct v4l2_file_operations uvc_fops = {
 	.read		= uvc_v4l2_read,
 	.mmap		= uvc_v4l2_mmap,
 	.poll		= uvc_v4l2_poll,
+#ifndef CONFIG_MMU
+	.get_unmapped_area = uvc_v4l2_get_unmapped_area,
+#endif
 };