1 /* 2 * Copyright (c) 2024 Nordic Semiconductor ASA 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef STREAM_TX_H 8 #define STREAM_TX_H 9 10 #include <stdint.h> 11 12 #include <zephyr/bluetooth/conn.h> 13 #include <zephyr/bluetooth/audio/bap.h> 14 #include <zephyr/bluetooth/audio/cap.h> 15 #include <zephyr/types.h> 16 17 #include "stream_lc3.h" 18 19 struct tx_stream { 20 struct bt_bap_stream *bap_stream; 21 uint16_t seq_num; 22 23 #if defined(CONFIG_LIBLC3) 24 struct stream_lc3_tx lc3_tx; 25 #endif /* CONFIG_LIBLC3 */ 26 }; 27 28 /** 29 * @brief Initialize TX 30 * 31 * This will initialize TX if not already initialized. This creates and starts a thread that 32 * will attempt to send data on all streams registered with stream_tx_register(). 33 */ 34 void stream_tx_init(void); 35 36 /** 37 * @brief Register a stream for TX 38 * 39 * This will add it to the list of streams the TX thread will attempt to send on. 40 * 41 * @retval 0 on success 42 * @retval -EINVAL if @p bap_stream is NULL 43 * @retval -EINVAL if @p bap_stream.codec_cfg contains invalid values 44 * @retval -ENOEXEC if the LC3 encoder failed to initialize 45 * @retval -ENOMEM if not more streams can be registered 46 */ 47 int stream_tx_register(struct bt_bap_stream *bap_stream); 48 49 /** 50 * @brief Unregister a stream for TX 51 * 52 * This will remove it to the list of streams the TX thread will attempt to send on. 53 * 54 * @retval 0 on success 55 * @retval -EINVAL if @p bap_stream is NULL 56 * @retval -EALREADY if the stream is currently not registered 57 */ 58 int stream_tx_unregister(struct bt_bap_stream *bap_stream); 59 60 #endif /* STREAM_TX_H */ 61
