Bluetooth: Audio: Audio Input Control Service and client
This commit implements the secondary service Audio Input Control Service (AICS) server and client. Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
This commit is contained in:
Emil Gydesen
Anas Nashif
parent
74a5ed7a23
commit
2016509756
9 changed files with 2485 additions and 2 deletions
451
include/bluetooth/audio/aics.h
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451
include/bluetooth/audio/aics.h
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/*
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* Copyright (c) 2020 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_BLUETOOTH_SERVICES_AICS_H_
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#define ZEPHYR_INCLUDE_BLUETOOTH_SERVICES_AICS_H_
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/**
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* @brief Audio Input Control Service (AICS)
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*
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* @defgroup bt_gatt_aics Audio Input Control Service (AICS)
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*
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* @ingroup bluetooth
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* @{
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*
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* The Audio Input Control Service is a secondary service, and as such should not be used on its
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* own, but rather in the context of another (primary) service.
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*
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* This API implements both the server and client functionality.
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* Note that the API abstracts away the change counter in the audio input control state and will
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* automatically handle any changes to that. If out of date, the client implementation will
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* autonomously read the change counter value when executing a write request.
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*
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* [Experimental] Users should note that the APIs can change as a part of ongoing development.
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*/
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#include <zephyr/types.h>
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#include <bluetooth/bluetooth.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Audio Input Control Service mute states */
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#define BT_AICS_STATE_UNMUTED 0x00
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#define BT_AICS_STATE_MUTED 0x01
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#define BT_AICS_STATE_MUTE_DISABLED 0x02
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/** Audio Input Control Service input modes */
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#define BT_AICS_MODE_MANUAL_ONLY 0x00
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#define BT_AICS_MODE_AUTO_ONLY 0x01
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#define BT_AICS_MODE_MANUAL 0x02
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#define BT_AICS_MODE_AUTO 0x03
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/** Audio Input Control Service input types */
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#define BT_AICS_INPUT_TYPE_UNSPECIFIED 0x00
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#define BT_AICS_INPUT_TYPE_BLUETOOTH 0x01
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#define BT_AICS_INPUT_TYPE_MICROPHONE 0x02
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#define BT_AICS_INPUT_TYPE_ANALOG 0x03
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#define BT_AICS_INPUT_TYPE_DIGITAL 0x04
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#define BT_AICS_INPUT_TYPE_RADIO 0x05
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#define BT_AICS_INPUT_TYPE_STREAMING 0x06
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/** Audio Input Control Service Error codes */
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#define BT_AICS_ERR_INVALID_COUNTER 0x80
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#define BT_AICS_ERR_OP_NOT_SUPPORTED 0x81
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#define BT_AICS_ERR_MUTE_DISABLED 0x82
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#define BT_AICS_ERR_OUT_OF_RANGE 0x83
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#define BT_AICS_ERR_GAIN_MODE_NOT_ALLOWED 0x84
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/** @brief Opaque Audio Input Control Service instance. */
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struct bt_aics;
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/** @brief Structure for initializing a Audio Input Control Service instance. */
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struct bt_aics_register_param {
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/** Initial audio input gain (-128 to 127) */
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int8_t gain;
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/** Initial audio input mute state */
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uint8_t mute;
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/** Initial audio input mode */
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uint8_t gain_mode;
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/** Initial audio input gain units (N * 0.1 dB) */
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uint8_t units;
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/** Initial audio input minimum gain */
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int8_t min_gain;
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/** Initial audio input maximum gain */
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int8_t max_gain;
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/** Initial audio input type */
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uint8_t type;
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/** Initial audio input status (active/inactive) */
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bool status;
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/** Boolean to set whether the description is writable by clients */
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bool desc_writable;
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/** Initial audio input description */
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char *description;
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/** Pointer to the callback structure. */
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struct bt_aics_cb *cb;
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};
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/** @brief Structure for discovering a Audio Input Control Service instance. */
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struct bt_aics_discover_param {
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/** @brief The start handle of the discovering.
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*
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* Typically the @p start_handle of a @ref bt_gatt_include.
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*/
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uint16_t start_handle;
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/** @brief The end handle of the discovering.
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*
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* Typically the @p end_handle of a @ref bt_gatt_include.
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*/
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uint16_t end_handle;
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};
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/**
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* @brief Get a free instance of Audio Input Control Service from the pool.
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*
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* @return Audio Input Control Service instance in case of success or NULL in case of error.
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*/
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struct bt_aics *bt_aics_free_instance_get(void);
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/**
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* @brief Get the service declaration attribute.
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*
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* The first service attribute returned can be included in any other GATT service.
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*
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* @param aics Audio Input Control Service instance.
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*
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* @return Pointer to the attributes of the service.
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*/
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void *bt_aics_svc_decl_get(struct bt_aics *aics);
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/**
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* @brief Initialize the Audio Input Control Service instance.
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*
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* @param aics Audio Input Control Service instance.
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* @param init Audio Input Control Service initialization structure.
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*
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* @return 0 if success, ERRNO on failure.
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*/
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int bt_aics_register(struct bt_aics *aics, struct bt_aics_register_param *init);
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/**
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* @brief Callback function for writes.
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*
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* @param conn Connection to peer device, or NULL if local server write.
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* @param inst The instance pointer.
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* @param err Error value. 0 on success, GATT error on positive value
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* or ERRNO on negative value.
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*/
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typedef void (*bt_aics_write_cb)(struct bt_conn *conn, struct bt_aics *inst,
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int err);
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/**
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* @brief Callback function for the input state.
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*
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* Called when the value is read,
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* or if the value is changed by either the server or client.
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*
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* @param conn Connection to peer device, or NULL if local server read.
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* @param inst The instance pointer.
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* @param err Error value. 0 on success, GATT error on positive value
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* or ERRNO on negative value.
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* For notifications, this will always be 0.
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* @param gain The gain setting value.
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* @param mute The mute value.
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* @param mode The mode value.
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*/
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typedef void (*bt_aics_state_cb)(struct bt_conn *conn, struct bt_aics *inst,
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int err, int8_t gain, uint8_t mute,
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uint8_t mode);
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/**
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* @brief Callback function for the gain settings.
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*
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* Called when the value is read,
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* or if the value is changed by either the server or client.
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*
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* @param conn Connection to peer device, or NULL if local server read.
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* @param inst The instance pointer.
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* @param err Error value. 0 on success, GATT error on positive value
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* or ERRNO on negative value.
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* For notifications, this will always be 0.
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* @param units The value that reflect the size of a single increment or decrement of the
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* Gain Setting value in 0.1 decibel units.
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* @param minimum The minimum gain allowed for the gain setting.
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* @param maximum The maximum gain allowed for the gain setting.
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*/
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typedef void (*bt_aics_gain_setting_cb)(struct bt_conn *conn,
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struct bt_aics *inst, int err,
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uint8_t units, int8_t minimum,
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int8_t maximum);
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/**
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* @brief Callback function for the input type.
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*
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* Called when the value is read, or if the value is changed by either the server or client.
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*
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* @param conn Connection to peer device, or NULL if local server read.
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* @param inst The instance pointer.
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* @param err Error value. 0 on success, GATT error on positive value
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* or ERRNO on negative value.
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* For notifications, this will always be 0.
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* @param type The input type.
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*/
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typedef void (*bt_aics_type_cb)(struct bt_conn *conn, struct bt_aics *inst,
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int err, uint8_t type);
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/**
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* @brief Callback function for the input status.
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*
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* Called when the value is read, or if the value is changed by either the server or client.
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*
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* @param conn Connection to peer device, or NULL if local server read.
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* @param inst The instance pointer.
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* @param err Error value. 0 on success, GATT error on positive value
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* or ERRNO on negative value.
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* For notifications, this will always be 0.
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* @param active Whether the instance is active or inactive.
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*/
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typedef void (*bt_aics_status_cb)(struct bt_conn *conn, struct bt_aics *inst,
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int err, bool active);
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/**
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* @brief Callback function for the description.
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*
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* Called when the value is read, or if the value is changed by either the server or client.
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*
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* @param conn Connection to peer device, or NULL if local server read.
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* @param inst The instance pointer.
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* @param err Error value. 0 on success, GATT error on positive value
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* or ERRNO on negative value.
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* For notifications, this will always be 0.
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* @param description The description as an UTF-8 encoded string (may have been clipped).
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*/
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typedef void (*bt_aics_description_cb)(struct bt_conn *conn,
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struct bt_aics *inst, int err,
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char *description);
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/**
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* @brief Callback function for bt_aics_discover.
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*
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* This callback will usually be overwritten by the primary service that
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* includes the Audio Input Control Service client.
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*
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* @param conn Connection to peer device, or NULL if local server read.
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* @param inst The instance pointer.
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* @param err Error value. 0 on success, GATT error on positive value
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* or ERRNO on negative value.
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* For notifications, this will always be 0.
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*/
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typedef void (*bt_aics_discover_cb)(struct bt_conn *conn, struct bt_aics *inst,
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int err);
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struct bt_aics_cb {
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bt_aics_state_cb state;
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bt_aics_gain_setting_cb gain_setting;
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bt_aics_type_cb type;
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bt_aics_status_cb status;
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bt_aics_description_cb description;
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#if defined(CONFIG_BT_AICS_CLIENT)
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bt_aics_discover_cb discover;
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bt_aics_write_cb set_gain;
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bt_aics_write_cb unmute;
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bt_aics_write_cb mute;
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bt_aics_write_cb set_manual_mode;
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bt_aics_write_cb set_auto_mode;
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#endif /* CONFIG_BT_AICS_CLIENT */
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};
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/**
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* @brief Discover a Audio Input Control Service.
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*
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* Attempts to discover a Audio Input Control Service on a server given the
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* @p param.
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*
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* @param conn Connection to the peer with the Audio Input Control Service.
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* @param inst The instance pointer.
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* @param param Pointer to the parameters.
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*
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* @return 0 on success, ERRNO on fail.
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*/
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int bt_aics_discover(struct bt_conn *conn, struct bt_aics *inst,
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const struct bt_aics_discover_param *param);
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/**
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* @brief Deactivates a Audio Input Control Service instance.
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*
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* Audio Input Control Services are activated by default, but this will allow
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* the server to deactivate an Audio Input Control Service.
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*
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* @param inst The instance pointer.
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*
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* @return 0 if success, ERRNO on failure.
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*/
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int bt_aics_deactivate(struct bt_aics *inst);
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/**
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* @brief Activates a Audio Input Control Service instance.
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*
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* Audio Input Control Services are activated by default, but this will allow
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* the server reactivate a Audio Input Control Service instance after it has
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* been deactivated with @ref bt_aics_deactivate.
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*
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* @param inst The instance pointer.
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*
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* @return 0 if success, ERRNO on failure.
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*/
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int bt_aics_activate(struct bt_aics *inst);
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/**
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* @brief Read the Audio Input Control Service input state.
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*
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* @param conn Connection to peer device, or NULL to read local server value.
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* @param inst The instance pointer.
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*
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* @return 0 on success, GATT error value on fail.
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*/
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int bt_aics_state_get(struct bt_conn *conn, struct bt_aics *inst);
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/**
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* @brief Read the Audio Input Control Service gain settings.
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*
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* @param conn Connection to peer device, or NULL to read local server value.
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* @param inst The instance pointer.
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*
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* @return 0 on success, GATT error value on fail.
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*/
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int bt_aics_gain_setting_get(struct bt_conn *conn, struct bt_aics *inst);
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/**
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* @brief Read the Audio Input Control Service input type.
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*
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* @param conn Connection to peer device, or NULL to read local server value.
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* @param inst The instance pointer.
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*
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* @return 0 on success, GATT error value on fail.
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*/
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int bt_aics_type_get(struct bt_conn *conn, struct bt_aics *inst);
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/**
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* @brief Read the Audio Input Control Service input status.
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*
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* @param conn Connection to peer device, or NULL to read local server value.
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* @param inst The instance pointer.
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*
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* @return 0 on success, GATT error value on fail.
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*/
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int bt_aics_status_get(struct bt_conn *conn, struct bt_aics *inst);
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/**
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* @brief Unmute the Audio Input Control Service input.
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*
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* @param conn Connection to peer device, or NULL to read local server value.
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* @param inst The instance pointer.
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*
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* @return 0 on success, GATT error value on fail.
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*/
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int bt_aics_unmute(struct bt_conn *conn, struct bt_aics *inst);
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/**
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* @brief Mute the Audio Input Control Service input.
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*
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* @param conn Connection to peer device, or NULL to read local server value.
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* @param inst The instance pointer.
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*
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* @return 0 on success, GATT error value on fail.
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*/
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int bt_aics_mute(struct bt_conn *conn, struct bt_aics *inst);
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/**
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* @brief Set input gain to manual.
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*
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* @param conn Connection to peer device, or NULL to set local server value.
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* @param inst The instance pointer.
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*
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* @return 0 on success, GATT error value on fail.
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*/
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int bt_aics_manual_gain_set(struct bt_conn *conn, struct bt_aics *inst);
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/**
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* @brief Set the input gain to automatic.
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*
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* @param conn Connection to peer device, or NULL to set local server value.
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* @param inst The instance pointer.
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*
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* @return 0 on success, GATT error value on fail.
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*/
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int bt_aics_automatic_gain_set(struct bt_conn *conn, struct bt_aics *inst);
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/**
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* @brief Set the input gain.
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*
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* @param conn Connection to peer device, or NULL to set local server value.
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* @param inst The instance pointer.
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* @param gain The gain to set (-128 to 127) in gain setting units
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* (see @ref bt_aics_gain_setting_cb).
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*
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* @return 0 on success, GATT error value on fail.
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*/
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int bt_aics_gain_set(struct bt_conn *conn, struct bt_aics *inst, int8_t gain);
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/**
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* @brief Read the Audio Input Control Service description.
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*
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* @param conn Connection to peer device, or NULL to read local server value.
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* @param inst The instance pointer.
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*
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* @return 0 on success, GATT error value on fail.
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*/
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int bt_aics_description_get(struct bt_conn *conn, struct bt_aics *inst);
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/**
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* @brief Set the Audio Input Control Service description.
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*
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* @param conn Connection to peer device, or NULL to set local server value.
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* @param inst The instance pointer.
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* @param description The description as an UTF-8 encoded string.
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*
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* @return 0 on success, GATT error value on fail.
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*/
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int bt_aics_description_set(struct bt_conn *conn, struct bt_aics *inst,
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const char *description);
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/**
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* @brief Get a new Audio Input Control Service client instance.
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*
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* @return Pointer to the instance, or NULL if no free instances are left.
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*/
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struct bt_aics *bt_aics_client_free_instance_get(void);
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/**
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* @brief Registers the callbacks for the Audio Input Control Service client.
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*
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* @param inst The instance pointer.
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* @param cb Pointer to the callback structure.
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*/
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void bt_aics_client_cb_register(struct bt_aics *inst, struct bt_aics_cb *cb);
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#ifdef __cplusplus
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}
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#endif
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/**
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* @}
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*/
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#endif /* ZEPHYR_INCLUDE_BLUETOOTH_SERVICES_AICS_H_ */
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@ -410,6 +410,15 @@ struct bt_uuid_128 {
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*/
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#define BT_UUID_MESH_PROXY \
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BT_UUID_DECLARE_16(BT_UUID_MESH_PROXY_VAL)
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/** @def BT_UUID_AICS_VAL
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* @brief Audio Input Control Service value
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*/
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#define BT_UUID_AICS_VAL 0x1843
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/** @def BT_UUID_AICS
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* @brief Audio Input Control Service
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*/
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#define BT_UUID_AICS \
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BT_UUID_DECLARE_16(BT_UUID_AICS_VAL)
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/** @def BT_UUID_VOCS_VAL
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* @brief Volume Offset Control Service value
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*/
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@ -1313,6 +1322,60 @@ struct bt_uuid_128 {
|
|||
#define BT_UUID_GATT_SERVER_FEATURES \
|
||||
BT_UUID_DECLARE_16(BT_UUID_GATT_SERVER_FEATURES_VAL)
|
||||
|
||||
/** @def BT_UUID_AICS_STATE_VAL
|
||||
* @brief Audio Input Control Service State value
|
||||
*/
|
||||
#define BT_UUID_AICS_STATE_VAL 0x2B77
|
||||
/** @def BT_UUID_AICS_STATE
|
||||
* @brief Audio Input Control Service State
|
||||
*/
|
||||
#define BT_UUID_AICS_STATE \
|
||||
BT_UUID_DECLARE_16(BT_UUID_AICS_STATE_VAL)
|
||||
/** @def BT_UUID_AICS_GAIN_SETTINGS_VAL
|
||||
* @brief Audio Input Control Service Gain Settings Properties value
|
||||
*/
|
||||
#define BT_UUID_AICS_GAIN_SETTINGS_VAL 0x2B78
|
||||
/** @def BT_UUID_AICS_GAIN_SETTINGS
|
||||
* @brief Audio Input Control Service Gain Settings Properties
|
||||
*/
|
||||
#define BT_UUID_AICS_GAIN_SETTINGS \
|
||||
BT_UUID_DECLARE_16(BT_UUID_AICS_GAIN_SETTINGS_VAL)
|
||||
/** @def BT_UUID_AICS_INPUT_TYPE_VAL
|
||||
* @brief Audio Input Control Service Input Type value
|
||||
*/
|
||||
#define BT_UUID_AICS_INPUT_TYPE_VAL 0x2B79
|
||||
/** @def BT_UUID_AICS_INPUT_TYPE
|
||||
* @brief Audio Input Control Service Input Type
|
||||
*/
|
||||
#define BT_UUID_AICS_INPUT_TYPE \
|
||||
BT_UUID_DECLARE_16(BT_UUID_AICS_INPUT_TYPE_VAL)
|
||||
/** @def BT_UUID_AICS_INPUT_STATUS_VAL
|
||||
* @brief Audio Input Control Service Input Status value
|
||||
*/
|
||||
#define BT_UUID_AICS_INPUT_STATUS_VAL 0x2B7A
|
||||
/** @def BT_UUID_AICS_INPUT_STATUS
|
||||
* @brief Audio Input Control Service Input Status
|
||||
*/
|
||||
#define BT_UUID_AICS_INPUT_STATUS \
|
||||
BT_UUID_DECLARE_16(BT_UUID_AICS_INPUT_STATUS_VAL)
|
||||
/** @def BT_UUID_AICS_CONTROL_VAL
|
||||
* @brief Audio Input Control Service Control Point value
|
||||
*/
|
||||
#define BT_UUID_AICS_CONTROL_VAL 0x2B7B
|
||||
/** @def BT_UUID_AICS_CONTROL
|
||||
* @brief Audio Input Control Service Control Point
|
||||
*/
|
||||
#define BT_UUID_AICS_CONTROL \
|
||||
BT_UUID_DECLARE_16(BT_UUID_AICS_CONTROL_VAL)
|
||||
/** @def BT_UUID_AICS_DESCRIPTION_VAL
|
||||
* @brief Audio Input Control Service Input Description value
|
||||
*/
|
||||
#define BT_UUID_AICS_DESCRIPTION_VAL 0x2B7C
|
||||
/** @def BT_UUID_AICS_DESCRIPTION
|
||||
* @brief Audio Input Control Service Input Description
|
||||
*/
|
||||
#define BT_UUID_AICS_DESCRIPTION \
|
||||
BT_UUID_DECLARE_16(BT_UUID_AICS_DESCRIPTION_VAL)
|
||||
/** @def BT_UUID_VOCS_STATE_VAL
|
||||
* @brief Volume Offset State value
|
||||
*/
|
||||
|
|
@ -1349,7 +1412,6 @@ struct bt_uuid_128 {
|
|||
*/
|
||||
#define BT_UUID_VOCS_DESCRIPTION \
|
||||
BT_UUID_DECLARE_16(BT_UUID_VOCS_DESCRIPTION_VAL)
|
||||
|
||||
/*
|
||||
* Protocol UUIDs
|
||||
*/
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue