[PATCH 6/6] [media] mxl111sf: Add a tuner entity

[Mauro Carvalho Chehab]

While mxl111sf may have multiple frontends, it has just one
tuner. Reflect that on the media graph.

Signed-off-by: Mauro Carvalho Chehab <mche...@osg.samsung.com>
---
 drivers/media/dvb-core/dvbdev.h         |  6 ++++++
 drivers/media/usb/dvb-usb-v2/mxl111sf.c | 20 ++++++++++++++++++++
 drivers/media/usb/dvb-usb-v2/mxl111sf.h |  5 +++++
 3 files changed, 31 insertions(+)

diff --git a/drivers/media/dvb-core/dvbdev.h b/drivers/media/dvb-core/dvbdev.h
index d7c67baa885e..4aff7bd3dea8 100644
--- a/drivers/media/dvb-core/dvbdev.h
+++ b/drivers/media/dvb-core/dvbdev.h
@@ -242,6 +242,11 @@ static inline void dvb_register_media_controller(struct 
dvb_adapter *adap,
        adap->mdev = mdev;
 }
 
+static inline struct media_device
+*dvb_get_media_controller(struct dvb_adapter *adap)
+{
+       return adap->mdev;
+}
 #else
 static inline
 int dvb_create_media_graph(struct dvb_adapter *adap,
@@ -250,6 +255,7 @@ int dvb_create_media_graph(struct dvb_adapter *adap,
        return 0;
 };
 #define dvb_register_media_controller(a, b) {}
+#define dvb_get_media_controller(a) NULL
 #endif
 
 int dvb_generic_open (struct inode *inode, struct file *file);
diff --git a/drivers/media/usb/dvb-usb-v2/mxl111sf.c 
b/drivers/media/usb/dvb-usb-v2/mxl111sf.c
index 1710f9038d75..b669deccc34c 100644
--- a/drivers/media/usb/dvb-usb-v2/mxl111sf.c
+++ b/drivers/media/usb/dvb-usb-v2/mxl111sf.c
@@ -10,6 +10,7 @@
 
 #include <linux/vmalloc.h>
 #include <linux/i2c.h>
+#include <media/tuner.h>
 
 #include "mxl111sf.h"
 #include "mxl111sf-reg.h"
@@ -868,6 +869,10 @@ static struct mxl111sf_tuner_config mxl_tuner_config = {
 static int mxl111sf_attach_tuner(struct dvb_usb_adapter *adap)
 {
        struct mxl111sf_state *state = adap_to_priv(adap);
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+       struct media_device *mdev = dvb_get_media_controller(&adap->dvb_adap);
+       int ret;
+#endif
        int i;
 
        pr_debug("%s()\n", __func__);
@@ -879,6 +884,21 @@ static int mxl111sf_attach_tuner(struct dvb_usb_adapter 
*adap)
                adap->fe[i]->ops.read_signal_strength = 
adap->fe[i]->ops.tuner_ops.get_rf_strength;
        }
 
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+       state->tuner.function = MEDIA_ENT_F_TUNER;
+       state->tuner.name = "mxl111sf tuner";
+       state->tuner_pads[TUNER_PAD_RF_INPUT].flags = MEDIA_PAD_FL_SINK;
+       state->tuner_pads[TUNER_PAD_IF_OUTPUT].flags = MEDIA_PAD_FL_SOURCE;
+
+       ret = media_entity_pads_init(&state->tuner,
+                                    TUNER_NUM_PADS, state->tuner_pads);
+       if (ret)
+               return ret;
+
+       ret = media_device_register_entity(mdev, &state->tuner);
+       if (ret)
+               return ret;
+#endif
        return 0;
 }
 
diff --git a/drivers/media/usb/dvb-usb-v2/mxl111sf.h 
b/drivers/media/usb/dvb-usb-v2/mxl111sf.h
index ee70df1f1e94..846260e0eec0 100644
--- a/drivers/media/usb/dvb-usb-v2/mxl111sf.h
+++ b/drivers/media/usb/dvb-usb-v2/mxl111sf.h
@@ -17,6 +17,7 @@
 #define DVB_USB_LOG_PREFIX "mxl111sf"
 #include "dvb_usb.h"
 #include <media/tveeprom.h>
+#include <media/media-entity.h>
 
 #define MXL_EP1_REG_READ     1
 #define MXL_EP2_REG_WRITE    2
@@ -85,6 +86,10 @@ struct mxl111sf_state {
        struct mutex fe_lock;
        u8 num_frontends;
        struct mxl111sf_adap_state adap_state[3];
+#ifdef CONFIG_MEDIA_CONTROLLER_DVB
+       struct media_entity tuner;
+       struct media_pad tuner_pads[2];
+#endif
 };
 
 int mxl111sf_read_reg(struct mxl111sf_state *state, u8 addr, u8 *data);
-- 
2.5.0


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