diff options
Diffstat (limited to 'include/media/cec-notifier.h')
| -rw-r--r-- | include/media/cec-notifier.h | 105 |
1 files changed, 72 insertions, 33 deletions
diff --git a/include/media/cec-notifier.h b/include/media/cec-notifier.h index 57b3a9f6ea1d..f161f8a493ac 100644 --- a/include/media/cec-notifier.h +++ b/include/media/cec-notifier.h @@ -43,6 +43,60 @@ struct cec_notifier *cec_notifier_get_conn(struct device *dev, void cec_notifier_put(struct cec_notifier *n); /** + * cec_notifier_conn_register - find or create a new cec_notifier for the given + * HDMI device and connector tuple. + * @hdmi_dev: HDMI device that sends the events. + * @conn_name: the connector name from which the event occurs. May be NULL + * if there is always only one HDMI connector created by the HDMI device. + * @conn_info: the connector info from which the event occurs (may be NULL) + * + * If a notifier for device @dev and connector @conn_name already exists, then + * increase the refcount and return that notifier. + * + * If it doesn't exist, then allocate a new notifier struct and return a + * pointer to that new struct. + * + * Return NULL if the memory could not be allocated. + */ +struct cec_notifier * +cec_notifier_conn_register(struct device *hdmi_dev, const char *conn_name, + const struct cec_connector_info *conn_info); + +/** + * cec_notifier_conn_unregister - decrease refcount and delete when the + * refcount reaches 0. + * @n: notifier. If NULL, then this function does nothing. + */ +void cec_notifier_conn_unregister(struct cec_notifier *n); + +/** + * cec_notifier_cec_adap_register - find or create a new cec_notifier for the + * given device. + * @hdmi_dev: HDMI device that sends the events. + * @conn_name: the connector name from which the event occurs. May be NULL + * if there is always only one HDMI connector created by the HDMI device. + * @adap: the cec adapter that registered this notifier. + * + * If a notifier for device @dev and connector @conn_name already exists, then + * increase the refcount and return that notifier. + * + * If it doesn't exist, then allocate a new notifier struct and return a + * pointer to that new struct. + * + * Return NULL if the memory could not be allocated. + */ +struct cec_notifier * +cec_notifier_cec_adap_register(struct device *hdmi_dev, const char *conn_name, + struct cec_adapter *adap); + +/** + * cec_notifier_cec_adap_unregister - decrease refcount and delete when the + * refcount reaches 0. + * @n: notifier. If NULL, then this function does nothing. + */ +void cec_notifier_cec_adap_unregister(struct cec_notifier *n); + +/** * cec_notifier_set_phys_addr - set a new physical address. * @n: the CEC notifier * @pa: the CEC physical address @@ -64,30 +118,6 @@ void cec_notifier_set_phys_addr_from_edid(struct cec_notifier *n, const struct edid *edid); /** - * cec_notifier_register - register a callback with the notifier - * @n: the CEC notifier - * @adap: the CEC adapter, passed as argument to the callback function - * @callback: the callback function - */ -void cec_notifier_register(struct cec_notifier *n, - struct cec_adapter *adap, - void (*callback)(struct cec_adapter *adap, u16 pa)); - -/** - * cec_notifier_unregister - unregister the callback from the notifier. - * @n: the CEC notifier - */ -void cec_notifier_unregister(struct cec_notifier *n); - -/** - * cec_register_cec_notifier - register the notifier with the cec adapter. - * @adap: the CEC adapter - * @notifier: the CEC notifier - */ -void cec_register_cec_notifier(struct cec_adapter *adap, - struct cec_notifier *notifier); - -/** * cec_notifier_parse_hdmi_phandle - find the hdmi device from "hdmi-phandle" * @dev: the device with the "hdmi-phandle" device tree property * @@ -110,27 +140,36 @@ static inline void cec_notifier_put(struct cec_notifier *n) { } -static inline void cec_notifier_set_phys_addr(struct cec_notifier *n, u16 pa) +static inline struct cec_notifier * +cec_notifier_conn_register(struct device *hdmi_dev, const char *conn_name, + const struct cec_connector_info *conn_info) { + /* A non-NULL pointer is expected on success */ + return (struct cec_notifier *)0xdeadfeed; } -static inline void cec_notifier_set_phys_addr_from_edid(struct cec_notifier *n, - const struct edid *edid) +static inline void cec_notifier_conn_unregister(struct cec_notifier *n) +{ +} + +static inline struct cec_notifier * +cec_notifier_cec_adap_register(struct device *hdmi_dev, const char *conn_name, + struct cec_adapter *adap) { + /* A non-NULL pointer is expected on success */ + return (struct cec_notifier *)0xdeadfeed; } -static inline void cec_notifier_register(struct cec_notifier *n, - struct cec_adapter *adap, - void (*callback)(struct cec_adapter *adap, u16 pa)) +static inline void cec_notifier_cec_adap_unregister(struct cec_notifier *n) { } -static inline void cec_notifier_unregister(struct cec_notifier *n) +static inline void cec_notifier_set_phys_addr(struct cec_notifier *n, u16 pa) { } -static inline void cec_register_cec_notifier(struct cec_adapter *adap, - struct cec_notifier *notifier) +static inline void cec_notifier_set_phys_addr_from_edid(struct cec_notifier *n, + const struct edid *edid) { } |