V4L/DVB (4198): Avoid newer usages of obsoleted experimental MPEGCOMP API

Put old MPEGCOMP API under #if __KERNEL__ and issue warnings when used.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/cx88/cx88-blackbird.c

@@ -805,10 +805,14 @@ static int mpeg_do_ioctl(struct inode *inode, struct file *file,
 	{
 		struct v4l2_mpeg_compression *f = arg;
 
+		printk(KERN_WARNING "VIDIOC_G_MPEGCOMP is obsolete. "
+				    "Replace with VIDIOC_G_EXT_CTRLS!");
 		memcpy(f,&default_mpeg_params,sizeof(*f));
 		return 0;
 	}
 	case VIDIOC_S_MPEGCOMP:
+		printk(KERN_WARNING "VIDIOC_S_MPEGCOMP is obsolete. "
+				    "Replace with VIDIOC_S_EXT_CTRLS!");
 		return 0;
 	case VIDIOC_G_EXT_CTRLS:
 	{

drivers/media/video/saa7134/saa7134-empress.c

@@ -281,10 +281,14 @@ static int ts_do_ioctl(struct inode *inode, struct file *file,
 		return saa7134_common_ioctl(dev, cmd, arg);
 
 	case VIDIOC_S_MPEGCOMP:
+		printk(KERN_WARNING "VIDIOC_S_MPEGCOMP is obsolete. "
+				    "Replace with VIDIOC_S_EXT_CTRLS!");
 		saa7134_i2c_call_clients(dev, VIDIOC_S_MPEGCOMP, arg);
 		ts_init_encoder(dev);
 		return 0;
 	case VIDIOC_G_MPEGCOMP:
+		printk(KERN_WARNING "VIDIOC_G_MPEGCOMP is obsolete. "
+				    "Replace with VIDIOC_G_EXT_CTRLS!");
 		saa7134_i2c_call_clients(dev, VIDIOC_G_MPEGCOMP, arg);
 		return 0;
 	case VIDIOC_S_EXT_CTRLS:

drivers/media/video/videodev.c

@@ -1216,6 +1216,7 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
 	case VIDIOC_G_MPEGCOMP:
 	{
 		struct v4l2_mpeg_compression *p=arg;
+
 		/*FIXME: Several fields not shown */
 		if (!vfd->vidioc_g_mpegcomp)
 			break;

include/linux/videodev2.h

@@ -306,11 +306,13 @@ struct v4l2_timecode
 #define V4L2_TC_USERBITS_8BITCHARS	0x0008
 /* The above is based on SMPTE timecodes */
 
+#ifdef __KERNEL__
 /*
  *	M P E G   C O M P R E S S I O N   P A R A M E T E R S
  *
- *  ### WARNING: this is still work-in-progress right now, most likely
- *  ###          there will be some incompatible changes.
+ *  ### WARNING: This experimental MPEG compression API is obsolete.
+ *  ###          It is replaced by the MPEG controls API.
+ *  ###          This old API will disappear in the near future!
  *
  */
 enum v4l2_bitrate_mode {
@@ -390,6 +392,7 @@ struct v4l2_mpeg_compression {
 	/* I don't expect the above being perfect yet ;) */
 	__u32				reserved_5[8];
 };
+#endif
 
 struct v4l2_jpegcompression
 {
@@ -1185,8 +1188,10 @@ struct v4l2_streamparm
 #define VIDIOC_ENUM_FMT         _IOWR ('V',  2, struct v4l2_fmtdesc)
 #define VIDIOC_G_FMT		_IOWR ('V',  4, struct v4l2_format)
 #define VIDIOC_S_FMT		_IOWR ('V',  5, struct v4l2_format)
+#ifdef __KERNEL__
 #define VIDIOC_G_MPEGCOMP       _IOR  ('V',  6, struct v4l2_mpeg_compression)
 #define VIDIOC_S_MPEGCOMP     	_IOW  ('V',  7, struct v4l2_mpeg_compression)
+#endif
 #define VIDIOC_REQBUFS		_IOWR ('V',  8, struct v4l2_requestbuffers)
 #define VIDIOC_QUERYBUF		_IOWR ('V',  9, struct v4l2_buffer)
 #define VIDIOC_G_FBUF		_IOR  ('V', 10, struct v4l2_framebuffer)