Now that interfaces got created, we need to fix the entity
namespace.
So, let's create a consistent new namespace and add backward
compatibility macros to keep the old namespace preserved.
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxx>
diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index 14d32cdcdd47..88013d1a2c39 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -230,17 +230,17 @@ static void dvb_create_media_entity(struct dvb_device *dvbdev,
switch (type) {
case DVB_DEVICE_FRONTEND:
- dvbdev->entity->type = MEDIA_ENT_T_DEVNODE_DVB_FE;
+ dvbdev->entity->type = MEDIA_ENT_T_DVB_DEMOD;
dvbdev->pads[0].flags = MEDIA_PAD_FL_SINK;
dvbdev->pads[1].flags = MEDIA_PAD_FL_SOURCE;
break;
case DVB_DEVICE_DEMUX:
- dvbdev->entity->type = MEDIA_ENT_T_DEVNODE_DVB_DEMUX;
+ dvbdev->entity->type = MEDIA_ENT_T_DVB_DEMUX;
dvbdev->pads[0].flags = MEDIA_PAD_FL_SINK;
dvbdev->pads[1].flags = MEDIA_PAD_FL_SOURCE;
break;
case DVB_DEVICE_CA:
- dvbdev->entity->type = MEDIA_ENT_T_DEVNODE_DVB_CA;
+ dvbdev->entity->type = MEDIA_ENT_T_DVB_CA;
dvbdev->pads[0].flags = MEDIA_PAD_FL_SINK;
dvbdev->pads[1].flags = MEDIA_PAD_FL_SOURCE;
break;
@@ -439,7 +439,7 @@ EXPORT_SYMBOL(dvb_unregister_device);
void dvb_create_media_graph(struct dvb_adapter *adap)
{
struct media_device *mdev = adap->mdev;
- struct media_entity *entity, *tuner = NULL, *fe = NULL;
+ struct media_entity *entity, *tuner = NULL, *demod = NULL;
struct media_entity *demux = NULL, *dvr = NULL, *ca = NULL;
struct media_interface *intf;
@@ -451,26 +451,26 @@ void dvb_create_media_graph(struct dvb_adapter *adap)
case MEDIA_ENT_T_V4L2_SUBDEV_TUNER:
tuner = entity;
break;
- case MEDIA_ENT_T_DEVNODE_DVB_FE:
- fe = entity;
+ case MEDIA_ENT_T_DVB_DEMOD:
+ demod = entity;
break;
- case MEDIA_ENT_T_DEVNODE_DVB_DEMUX:
+ case MEDIA_ENT_T_DVB_DEMUX:
demux = entity;
break;
- case MEDIA_ENT_T_DEVNODE_DVB_DVR:
+ case MEDIA_ENT_T_DVB_TSOUT:
dvr = entity;
break;
- case MEDIA_ENT_T_DEVNODE_DVB_CA:
+ case MEDIA_ENT_T_DVB_CA:
ca = entity;
break;
}
}
- if (tuner && fe)
- media_create_pad_link(tuner, 0, fe, 0, 0);
+ if (tuner && demod)
+ media_create_pad_link(tuner, 0, demod, 0, 0);
- if (fe && demux)
- media_create_pad_link(fe, 1, demux, 0, MEDIA_LNK_FL_ENABLED);
+ if (demod && demux)
+ media_create_pad_link(demod, 1, demux, 0, MEDIA_LNK_FL_ENABLED);
if (demux && dvr)
media_create_pad_link(demux, 1, dvr, 0, MEDIA_LNK_FL_ENABLED);
diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h
index aca828709bad..3bbda409353f 100644
--- a/include/uapi/linux/media.h
+++ b/include/uapi/linux/media.h
@@ -42,31 +42,71 @@ struct media_device_info {
#define MEDIA_ENT_ID_FLAG_NEXT (1 << 31)
+/*
+ * Base numbers for entity types
+ *
+ * Please notice that the huge gap of 16 bits for each base is overkill!
+ * 8 bits is more than enough to avoid starving entity types for each
+ * subsystem.
+ *
+ * However, It is kept this way just to avoid binary breakages with the
+ * namespace provided on legacy versions of this header.
+ */
+#define MEDIA_ENT_T_DVB_BASE 0x00000001
+#define MEDIA_ENT_T_V4L2_BASE 0x00010000
+#define MEDIA_ENT_T_V4L2_SUBDEV_BASE 0x00020000
+
+/*
+ * V4L2 entities - Those are used for DMA (mmap/DMABUF) and
+ * read()/write() data I/O associated with the V4L2 devnodes.
+ */
+#define MEDIA_ENT_T_V4L2_VIDEO (MEDIA_ENT_T_V4L2_BASE + 1)
+ /*
+ * Please notice that numbers between MEDIA_ENT_T_V4L2_BASE + 2 and
+ * MEDIA_ENT_T_V4L2_BASE + 4 can't be used, as those values used
+ * to be declared for FB, ALSA and DVB entities.
+ * As those values were never actually used in practice, we're just
+ * adding them as backward compatibility macros and keeping the
+ * numberspace clean here. This way, we avoid breaking compilation,
+ * in the case of having some userspace application using the old
+ * symbols.
+ */
+#define MEDIA_ENT_T_V4L2_VBI (MEDIA_ENT_T_V4L2_BASE + 5)
+ /* for TX radio, as RX is done via either ALSA or wire */
+#define MEDIA_ENT_T_V4L2_RADIO (MEDIA_ENT_T_V4L2_BASE + 6)
+#define MEDIA_ENT_T_V4L2_SWRADIO (MEDIA_ENT_T_V4L2_BASE + 7)
+
+/* V4L2 Sub-device entities */
+#define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR (MEDIA_ENT_T_V4L2_SUBDEV_BASE + 1)
+#define MEDIA_ENT_T_V4L2_SUBDEV_FLASH (MEDIA_ENT_T_V4L2_SUBDEV_BASE + 2)
+#define MEDIA_ENT_T_V4L2_SUBDEV_LENS (MEDIA_ENT_T_V4L2_SUBDEV_BASE + 3)
+ /* A converter of analogue video to its digital representation. */
+#define MEDIA_ENT_T_V4L2_SUBDEV_DECODER (MEDIA_ENT_T_V4L2_SUBDEV_BASE + 4)
+ /* Tuner entity is actually both V4L2 and DVB subdev */
+#define MEDIA_ENT_T_V4L2_SUBDEV_TUNER (MEDIA_ENT_T_V4L2_SUBDEV_BASE + 5)
+
+/* DVB entities */
+#define MEDIA_ENT_T_DVB_DEMOD (MEDIA_ENT_T_DVB_BASE)
+#define MEDIA_ENT_T_DVB_DEMUX (MEDIA_ENT_T_DVB_BASE + 1)
+#define MEDIA_ENT_T_DVB_TSOUT (MEDIA_ENT_T_DVB_BASE + 2)
+#define MEDIA_ENT_T_DVB_CA (MEDIA_ENT_T_DVB_BASE + 3)
+#define MEDIA_ENT_T_DVB_NET_DECAP (MEDIA_ENT_T_DVB_BASE + 4)
+
+/* Legacy symbols used to avoid userspace compilation breakages */
#define MEDIA_ENT_TYPE_SHIFT 16
#define MEDIA_ENT_TYPE_MASK 0x00ff0000
#define MEDIA_ENT_SUBTYPE_MASK 0x0000ffff
-#define MEDIA_ENT_T_DEVNODE (1 << MEDIA_ENT_TYPE_SHIFT)
-#define MEDIA_ENT_T_DEVNODE_V4L (MEDIA_ENT_T_DEVNODE + 1)
+#define MEDIA_ENT_T_DEVNODE MEDIA_ENT_T_V4L2_BASE
+#define MEDIA_ENT_T_V4L2_SUBDEV MEDIA_ENT_T_V4L2_SUBDEV_BASE
+
+#define MEDIA_ENT_T_DEVNODE_V4L MEDIA_ENT_T_V4L2_VIDEO
+
#define MEDIA_ENT_T_DEVNODE_FB (MEDIA_ENT_T_DEVNODE + 2)
#define MEDIA_ENT_T_DEVNODE_ALSA (MEDIA_ENT_T_DEVNODE + 3)
-#define MEDIA_ENT_T_DEVNODE_DVB_FE (MEDIA_ENT_T_DEVNODE + 4)
-#define MEDIA_ENT_T_DEVNODE_DVB_DEMUX (MEDIA_ENT_T_DEVNODE + 5)
-#define MEDIA_ENT_T_DEVNODE_DVB_DVR (MEDIA_ENT_T_DEVNODE + 6)
-#define MEDIA_ENT_T_DEVNODE_DVB_CA (MEDIA_ENT_T_DEVNODE + 7)
-#define MEDIA_ENT_T_DEVNODE_DVB_NET (MEDIA_ENT_T_DEVNODE + 8)
+#define MEDIA_ENT_T_DEVNODE_DVB (MEDIA_ENT_T_DEVNODE + 4)
-/* Legacy symbol. Use it to avoid userspace compilation breakages */
-#define MEDIA_ENT_T_DEVNODE_DVB MEDIA_ENT_T_DEVNODE_DVB_FE
-
-#define MEDIA_ENT_T_V4L2_SUBDEV (2 << MEDIA_ENT_TYPE_SHIFT)
-#define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR (MEDIA_ENT_T_V4L2_SUBDEV + 1)
-#define MEDIA_ENT_T_V4L2_SUBDEV_FLASH (MEDIA_ENT_T_V4L2_SUBDEV + 2)
-#define MEDIA_ENT_T_V4L2_SUBDEV_LENS (MEDIA_ENT_T_V4L2_SUBDEV + 3)
-/* A converter of analogue video to its digital representation. */
-#define MEDIA_ENT_T_V4L2_SUBDEV_DECODER (MEDIA_ENT_T_V4L2_SUBDEV + 4)
-
-#define MEDIA_ENT_T_V4L2_SUBDEV_TUNER (MEDIA_ENT_T_V4L2_SUBDEV + 5)
+/* Entity types */
#define MEDIA_ENT_FL_DEFAULT (1 << 0)
--
2.4.3
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