* VEHICLE_AUDIO_EXT_FOCUS_CAR_PLAY_ONLY_FLAG can be used.
* This is for case like radio where android side app still needs to hold focus
* but playback is done outside Android.
+ * int32_array[3]: Currently active audio contexts in android side. Use combination of flags from
+ * vehicle_audio_context_flag.
+ * This can be used as a hint to adjust audio policy or other policy decision.
+ * Note that there can be multiple context active at the same time. And android
+ * can send the same focus request type gain due to change in audio contexts.
* Note that each focus request can request multiple streams that is expected to be used for
* the current request. But focus request itself is global behavior as GAIN or GAIN_TRANSIENT
* expects all sounds played by car's audio module to stop. Note that stream already allocated to
* VEHICLE_AUDIO_EXT_FOCUS_CAR_PERMANENT when car side is playing something
* permanent.
* LOSS_TRANSIENT: always should be VEHICLE_AUDIO_EXT_FOCUS_CAR_TRANSIENT
+ * int32_array[3]: should be zero.
*
* If car does not support VEHICLE_PROPERTY_AUDIO_FOCUS, focus is assumed to be granted always.
*
- * @value_type VEHICLE_VALUE_TYPE_INT32_VEC3
+ * @value_type VEHICLE_VALUE_TYPE_INT32_VEC4
* @change_mode VEHICLE_PROP_CHANGE_MODE_ON_CHANGE
* @access VEHICLE_PROP_ACCESS_READ_WRITE
* @data_member int32_array
VEHICLE_AUDIO_FOCUS_INDEX_FOCUS = 0,
VEHICLE_AUDIO_FOCUS_INDEX_STREAMS = 1,
VEHICLE_AUDIO_FOCUS_INDEX_EXTERNAL_FOCUS_STATE = 2,
+ VEHICLE_AUDIO_FOCUS_INDEX_AUDIO_CONTEXTS = 3,
+};
+
+/**
+ * Flags to tell the current audio context.
+ */
+enum vehicle_audio_context_flag {
+ /** Music playback is currently active. */
+ VEHICLE_AUDIO_CONTEXT_MUSIC_FLAG = 0x1,
+ /** Navigation is currently running. */
+ VEHICLE_AUDIO_CONTEXT_NAVIGATION_FLAG = 0x2,
+ /** Voice command session is currently running. */
+ VEHICLE_AUDIO_CONTEXT_VOICE_COMMAND_FLAG = 0x4,
+ /** Voice call is currently active. */
+ VEHICLE_AUDIO_CONTEXT_CALL_FLAG = 0x8,
+ /** Alarm is active. This may be only used in VEHICLE_PROPERTY_AUDIO_ROUTING_POLICY. */
+ VEHICLE_AUDIO_CONTEXT_ALARM_FLAG = 0x10,
+ /**
+ * Notification sound is active. This may be only used in VEHICLE_PROPERTY_AUDIO_ROUTING_POLICY.
+ */
+ VEHICLE_AUDIO_CONTEXT_NOTIFICATION_FLAG = 0x20,
+ /**
+ * Context unknown. Only used for VEHICLE_PROPERTY_AUDIO_ROUTING_POLICY to represent default
+ * stream for unknown contents.
+ */
+ VEHICLE_AUDIO_CONTEXT_UNKNOWN_FLAG = 0x40,
+ /** Safety alert / warning is played. */
+ VEHICLE_AUDIO_CONTEXT_SAFETY_ALERT_FLAG = 0x80,
+ /** CD / DVD kind of audio is played */
+ VEHICLE_AUDIO_CONTEXT_CD_ROM = 0x100,
+ /** Aux audio input is played */
+ VEHICLE_AUDIO_CONTEXT_AUX_AUDIO = 0x200,
+ /** system sound like UI feedback */
+ VEHICLE_AUDIO_CONTEXT_SYSTEM_SOUND = 0x400,
+ /** Radio is played */
+ VEHICLE_AUDIO_CONTEXT_RADIO = 0x800,
};
/**
VEHICLE_AUDIO_HW_VARIANT_FLAG_PASS_RADIO_AUDIO_FOCUS_FLAG = 0x1,
};
-/**
- * Property to share currently active audio context in android side.
- * This can be used as a hint to adjust audio policy or other policy decision. Note that there
- * can be multiple context active at the same time.
- *
- * @value_type VEHICLE_VALUE_TYPE_INT32
- * @change_mode VEHICLE_PROP_CHANGE_MODE_ON_CHANGE
- * @access VEHICLE_PROP_ACCESS_WRITE
- * @data_member int32
- */
-#define VEHICLE_PROPERTY_AUDIO_CONTEXT (0x00000905)
-/**
- * Flags to tell the current audio context.
- */
-enum vehicle_audio_context_flag {
- /** Music playback is currently active. */
- VEHICLE_AUDIO_CONTEXT_MUSIC_FLAG = 0x1,
- /** Navigation is currently running. */
- VEHICLE_AUDIO_CONTEXT_NAVIGATION_FLAG = 0x2,
- /** Voice command session is currently running. */
- VEHICLE_AUDIO_CONTEXT_VOICE_COMMAND_FLAG = 0x4,
- /** Voice call is currently active. */
- VEHICLE_AUDIO_CONTEXT_CALL_FLAG = 0x8,
- /** Alarm is active. This may be only used in VEHICLE_PROPERTY_AUDIO_ROUTING_POLICY. */
- VEHICLE_AUDIO_CONTEXT_ALARM_FLAG = 0x10,
- /**
- * Notification sound is active. This may be only used in VEHICLE_PROPERTY_AUDIO_ROUTING_POLICY.
- */
- VEHICLE_AUDIO_CONTEXT_NOTIFICATION_FLAG = 0x20,
- /**
- * Context unknown. Only used for VEHICLE_PROPERTY_AUDIO_ROUTING_POLICY to represent default
- * stream for unknown contents.
- */
- VEHICLE_AUDIO_CONTEXT_UNKNOWN_FLAG = 0x40,
- /** Safety alert / warning is played. */
- VEHICLE_AUDIO_CONTEXT_SAFETY_ALERT_FLAG = 0x80,
- /** CD / DVD kind of audio is played */
- VEHICLE_AUDIO_CONTEXT_CD_ROM = 0x100,
- /** Aux audio input is played */
- VEHICLE_AUDIO_CONTEXT_AUX_AUDIO = 0x200,
- /** system sound like UI feedback */
- VEHICLE_AUDIO_CONTEXT_SYSTEM_SOUND = 0x400,
-};
/**
* Property to control power state of application processor.
};
/**
+ * Property to define instrument cluster information.
+ * For CLUSTER_TYPE_EXTERNAL_DISPLAY:
+ * READ:
+ * int32_array[0] : The current screen mode index. Screen mode is defined
+ * as a configuration in car service and represents which
+ * area of screen is renderable.
+ * int32_array[1] : Android can render to instrument cluster (=1) or not(=0). When this is 0,
+ * instrument cluster may be rendering some information in the area
+ * allocated for android and android side rendering is invisible. *
+ * int32_array[2..3] : should be zero
+ * WRITE from android:
+ * int32_array[0] : Preferred mode for android side. Depending on the app rendering to instrument
+ * cluster, preferred mode can change. Instrument cluster still needs to send
+ * event with new mode to trigger actual mode change.
+ * int32_array[1] : The current app context relevant for instrument cluster. Use the same flag
+ * with vehicle_audio_context_flag but this context represents active apps, not
+ * active audio. Instrument cluster side may change mode depending on the
+ * currently active contexts.
+ * int32_array[2..3] : should be zero
+ * When system boots up, Android side will write {0, 0, 0, 0} when it is ready to render to
+ * instrument cluster. Before this message, rendering from android should not be visible in the
+ * cluster.
+ * @value_type VEHICLE_VALUE_TYPE_INT32_VEC4
+ * @change_mode VEHICLE_PROP_CHANGE_MODE_ON_CHANGE
+ * @access VEHICLE_PROP_ACCESS_READ_WRITE
+ * @config_array 0:vehicle_instument_cluster_type 1:hw type
+ * @data_member int32_array
+ */
+#define VEHICLE_PROPERTY_INSTRUMENT_CLUSTER_INFO (0x00000A20)
+
+/**
+ * Represents instrument cluster type available in system
+ */
+enum vehicle_instument_cluster_type {
+ /** Android has no access to instument cluster */
+ VEHICLE_INSTRUMENT_CLUSTER_TYPE_NONE = 0,
+ /**
+ * Instrument cluster can communicate through vehicle hal with additional
+ * properties to exchange meta-data
+ */
+ VEHICLE_INSTRUMENT_CLUSTER_TYPE_HAL_INTERFACE = 1,
+ /**
+ * Instrument cluster is external display where android can render contents
+ */
+ VEHICLE_INSTRUMENT_CLUSTER_TYPE_EXTERNAL_DISPLAY = 2,
+};
+
+/**
* H/W specific, non-standard property can be added as necessary. Such property should use
* property number in range of [VEHICLE_PROPERTY_CUSTOM_START, VEHICLE_PROPERTY_CUSTOM_END].
* Definition of property in this range is completely up to each HAL implementation.
};
/**
+ * Array of min values for zoned properties. Zoned property can specify min / max value in two
+ * different ways:
+ * 1. All zones having the same min / max value: *_min/max_value should be set and this
+ * array should be set to NULL.
+ * 2. All zones having separate min / max value: *_min/max_values array should be populated
+ * and its length should be the same as number of active zones specified by *_zone_flags.
+ */
+ union {
+ float* float_min_values;
+ int32_t* int32_min_values;
+ int64_t* int64_min_values;
+ };
+
+ /**
+ * Array of max values for zoned properties. See above for its usage.
+ */
+ union {
+ float* float_max_values;
+ int32_t* int32_max_values;
+ int64_t* int64_max_values;
+ };
+
+ /**
* Min sample rate in Hz. Should be 0 for sensor type of VEHICLE_PROP_CHANGE_MODE_ON_CHANGE
*/
float min_sample_rate;
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