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/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef CRAS_IODEV_INFO_H_
#define CRAS_IODEV_INFO_H_
#include <stddef.h>
#include <stdint.h>
#define CRAS_IODEV_NAME_BUFFER_SIZE 64
#define CRAS_NODE_TYPE_BUFFER_SIZE 32
#define CRAS_NODE_MIC_POS_BUFFER_SIZE 128
#define CRAS_NODE_NAME_BUFFER_SIZE 64
#define CRAS_NODE_HOTWORD_MODEL_BUFFER_SIZE 16
/* Identifying information about an IO device.
* idx - iodev index.
* name - Name displayed to the user.
* stable_id - ID that does not change due to device plug/unplug or reboot.
* max_supported_channels - Max supported channel count of this device.
*/
struct __attribute__((__packed__)) cras_iodev_info {
uint32_t idx;
char name[CRAS_IODEV_NAME_BUFFER_SIZE];
uint32_t stable_id;
uint32_t max_supported_channels;
};
/* Identifying information about an ionode on an iodev.
* iodev_idx - Index of the device this node belongs.
* ionode_idx - Index of this node on the device.
* plugged - Set true if this node is known to be plugged in.
* plugged_time - If plugged is true, this is the time it was attached.
* active - If this is the node currently being used.
* volume - per-node volume (0-100)
* capture_gain - per-node capture gain/attenuation (in 100*dBFS)
* ui_gain_scaler - Adjustable gain scaler set by Chrome.
* left_right_swapped - Set true if left and right channels are swapped.
* stable_id - ID that does not change due to device plug/unplug or reboot.
* type - Type displayed to the user.
* name - Name displayed to the user.
* active_hotword_model - name of the currently selected hotword model.
*/
struct __attribute__((__packed__)) cras_ionode_info {
uint32_t iodev_idx;
uint32_t ionode_idx;
int32_t plugged;
int32_t active;
struct {
int64_t tv_sec;
int64_t tv_usec;
} plugged_time;
uint32_t volume;
int32_t capture_gain;
float ui_gain_scaler;
int32_t left_right_swapped;
uint32_t type_enum;
uint32_t stable_id;
char type[CRAS_NODE_TYPE_BUFFER_SIZE];
char name[CRAS_NODE_NAME_BUFFER_SIZE];
char active_hotword_model[CRAS_NODE_HOTWORD_MODEL_BUFFER_SIZE];
};
/* This is used in the cras_client_set_node_attr API.
* IONODE_ATTR_PLUGGED - set the node as plugged/unplugged.
* IONODE_ATTR_VOLUME - set the node's output volume.
* IONODE_ATTR_CAPTURE_GAIN - set the node's capture gain.
* IONODE_ATTR_SWAP_LEFT_RIGHT - Swap the node's left and right channel.
*/
enum ionode_attr {
IONODE_ATTR_PLUGGED,
IONODE_ATTR_VOLUME,
IONODE_ATTR_CAPTURE_GAIN,
IONODE_ATTR_SWAP_LEFT_RIGHT
};
#endif /* CRAS_IODEV_INFO_H_ */
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