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[HDMI-CEC] Modify the signature of register_event_callback

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Additional parameter helps the caller avoid managing a static instance
variable. The parameter is used to pass the caller object itself.

Change-Id: I06cbcc7736031678f4638a0b5082d7b6a7ea51b6
This commit is contained in:
Jinsuk Kim 2014-03-06 19:25:19 +09:00
parent 5f9a790784
commit 70ae777c9a
1 changed files with 6 additions and 4 deletions
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10
include/hardware/hdmi_cec.h
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@ -194,7 +194,7 @@ typedef struct hdmi_event {
* Callback function type that will be called by HAL implementation.
* Services can not close/open the device in the callback.
*/
typedef void (*event_callback_t)(const hdmi_event_t* event);
typedef void (*event_callback_t)(const hdmi_event_t* event, void* arg);
typedef struct hdmi_cec_module {
struct hw_module_t common;
@ -214,7 +214,6 @@ typedef struct hdmi_cec_device {
* is not successful the addr will be set to CEC_ADDR_UNREGISTERED.
*
* Returns 0 on success or -errno on error.
*
*/
int (*allocate_logical_address)(const struct hdmi_cec_device* dev,
int device_type, cec_logical_address_t* addr);
@ -238,14 +237,17 @@ typedef struct hdmi_cec_device {
* Returns 0 on success or -errno on error.
*/
int (*send_message)(const struct hdmi_cec_device* dev,
const cec_message_t *);
const cec_message_t*);
/*
* (*register_event_callback)() registers a callback that HDMI-CEC HAL
* can later use for incoming CEC messages or internal HDMI events.
* When calling from C++, use the argument arg to pass the calling object.
* It will be passed back when the callback is invoked so that the context
* can be retrieved.
*/
void (*register_event_callback)(const struct hdmi_cec_device* dev,
event_callback_t callback);
event_callback_t callback, void* arg);
/*
* (*get_version)() returns the CEC version supported by underlying