From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Support the CEC notifier framework, simplifying drivers that
depend on this.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
drivers/media/cec/cec-core.c | 21 +++++++++++++++++++++
include/media/cec.h | 6 ++++++
2 files changed, 27 insertions(+)
diff --git a/drivers/media/cec/cec-core.c b/drivers/media/cec/cec-core.c
index 37217e205040..2bab6e00b663 100644
--- a/drivers/media/cec/cec-core.c
+++ b/drivers/media/cec/cec-core.c
@@ -195,6 +195,23 @@ static void cec_devnode_unregister(struct cec_devnode *devnode)
put_device(&devnode->dev);
}
+#ifdef CONFIG_MEDIA_CEC_NOTIFIER
+static void cec_cec_notify(struct cec_adapter *adap, u16 pa)
+{
+ cec_s_phys_addr(adap, pa, false);
+}
+
+void cec_register_cec_notifier(struct cec_adapter *adap,
+ struct cec_notifier *notifier)
+{
+ if (WARN_ON(!adap->devnode.registered))
+ return;
+
+ cec_notifier_register(adap->notifier, adap, cec_cec_notify);
+}
+EXPORT_SYMBOL_GPL(cec_register_cec_notifier);
+#endif
+
struct cec_adapter *cec_allocate_adapter(const struct cec_adap_ops *ops,
void *priv, const char *name, u32 caps,
u8 available_las)
@@ -343,6 +360,10 @@ void cec_unregister_adapter(struct cec_adapter *adap)
adap->rc = NULL;
#endif
debugfs_remove_recursive(adap->cec_dir);
+#ifdef CONFIG_MEDIA_CEC_NOTIFIER
+ if (adap->notifier)
+ cec_notifier_unregister(adap->notifier);
+#endif
cec_devnode_unregister(&adap->devnode);
}
EXPORT_SYMBOL_GPL(cec_unregister_adapter);
diff --git a/include/media/cec.h b/include/media/cec.h
index 96a0aa770d61..e6474b567a25 100644
--- a/include/media/cec.h
+++ b/include/media/cec.h
@@ -30,6 +30,7 @@
#include <linux/cec-funcs.h>
#include <media/rc-core.h>
#include <media/cec-edid.h>
+#include <media/cec-notifier.h>
/**
* struct cec_devnode - cec device node
@@ -213,6 +214,11 @@ void cec_transmit_done(struct cec_adapter *adap, u8 status, u8 arb_lost_cnt,
u8 nack_cnt, u8 low_drive_cnt, u8 error_cnt);
void cec_received_msg(struct cec_adapter *adap, struct cec_msg *msg);
+#ifdef CONFIG_MEDIA_CEC_NOTIFIER
+void cec_register_cec_notifier(struct cec_adapter *adap,
+ struct cec_notifier *notifier);
+#endif
+
#else
static inline int cec_register_adapter(struct cec_adapter *adap,
--
2.11.0
--
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