549a98acce
Modify the broadcast sink to use a list of streams instead of an array. This removes the requirement that the array of stream pointers shall be static, and makes the broadcast sink API and implementation more similar to the unicast group and broadcast source. Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
129 lines
3.7 KiB
C
129 lines
3.7 KiB
C
/* @file
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* @brief Internal APIs for Audio Endpoint handling
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* Copyright (c) 2020 Intel Corporation
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* Copyright (c) 2022 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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#include "ascs_internal.h"
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#include "stream.h"
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#if defined(CONFIG_BT_AUDIO_UNICAST_CLIENT) && defined(CONFIG_BT_AUDIO_UNICAST)
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#define UNICAST_GROUP_CNT CONFIG_BT_AUDIO_UNICAST_CLIENT_GROUP_COUNT
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#define UNICAST_GROUP_STREAM_CNT CONFIG_BT_AUDIO_UNICAST_CLIENT_GROUP_STREAM_COUNT
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#else /* !(CONFIG_BT_AUDIO_UNICAST_CLIENT && CONFIG_BT_AUDIO_UNICAST) */
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#define UNICAST_GROUP_CNT 0
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#define UNICAST_GROUP_STREAM_CNT 0
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#endif /* CONFIG_BT_AUDIO_UNICAST_CLIENT && CONFIG_BT_AUDIO_UNICAST */
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#if defined(CONFIG_BT_AUDIO_BROADCAST_SOURCE)
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#define BROADCAST_STREAM_CNT CONFIG_BT_AUDIO_BROADCAST_SRC_STREAM_COUNT
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#else /* !CONFIG_BT_AUDIO_BROADCAST_SOURCE */
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#define BROADCAST_STREAM_CNT 0
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#endif /* CONFIG_BT_AUDIO_BROADCAST_SOURCE */
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/* Temp struct declarations to handle circular dependencies */
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struct bt_audio_unicast_group;
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struct bt_audio_broadcast_source;
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struct bt_audio_broadcast_sink;
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struct bt_audio_ep;
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struct bt_audio_iso {
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struct bt_iso_chan iso_chan;
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struct bt_iso_chan_qos iso_qos;
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struct bt_iso_chan_io_qos sink_io_qos;
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struct bt_iso_chan_io_qos source_io_qos;
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struct bt_audio_stream *sink_stream;
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struct bt_audio_stream *source_stream;
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};
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struct bt_audio_ep {
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uint8_t dir;
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uint16_t handle;
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uint16_t cp_handle;
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uint8_t cig_id;
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uint8_t cis_id;
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struct bt_ascs_ase_status status;
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struct bt_audio_stream *stream;
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struct bt_codec codec;
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struct bt_codec_qos qos;
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struct bt_codec_qos_pref qos_pref;
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struct bt_audio_iso *iso;
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struct bt_gatt_subscribe_params subscribe;
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struct bt_gatt_discover_params discover;
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/* TODO: Create a union to reduce memory usage */
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struct bt_audio_unicast_group *unicast_group;
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struct bt_audio_broadcast_source *broadcast_source;
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struct bt_audio_broadcast_sink *broadcast_sink;
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};
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struct bt_audio_unicast_group {
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uint8_t index;
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bool allocated;
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/* QoS used to create the CIG */
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const struct bt_codec_qos *qos;
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struct bt_iso_cig *cig;
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/* The ISO API for CIG creation requires an array of pointers to ISO channels */
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struct bt_iso_chan *cis[UNICAST_GROUP_STREAM_CNT];
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sys_slist_t streams;
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};
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struct bt_audio_broadcast_source {
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uint8_t stream_count;
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uint8_t subgroup_count;
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uint32_t pd; /** QoS Presentation Delay */
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uint32_t broadcast_id; /* 24 bit */
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struct bt_le_ext_adv *adv;
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struct bt_iso_big *big;
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struct bt_iso_chan *bis[BROADCAST_STREAM_CNT];
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struct bt_codec_qos *qos;
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/* The streams used to create the broadcast source */
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sys_slist_t streams;
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};
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struct bt_audio_broadcast_sink {
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uint8_t index; /* index of broadcast_snks array */
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uint8_t stream_count;
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uint16_t pa_interval;
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uint16_t iso_interval;
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uint16_t biginfo_num_bis;
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bool biginfo_received;
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bool syncing;
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bool big_encrypted;
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uint32_t broadcast_id; /* 24 bit */
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struct bt_audio_base base;
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struct bt_le_per_adv_sync *pa_sync;
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struct bt_iso_big *big;
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struct bt_iso_chan *bis[BROADCAST_SNK_STREAM_CNT];
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/* The streams used to create the broadcast sink */
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sys_slist_t streams;
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};
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static inline const char *bt_audio_ep_state_str(uint8_t state)
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{
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switch (state) {
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case BT_AUDIO_EP_STATE_IDLE:
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return "idle";
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case BT_AUDIO_EP_STATE_CODEC_CONFIGURED:
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return "codec-configured";
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case BT_AUDIO_EP_STATE_QOS_CONFIGURED:
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return "qos-configured";
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case BT_AUDIO_EP_STATE_ENABLING:
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return "enabling";
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case BT_AUDIO_EP_STATE_STREAMING:
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return "streaming";
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case BT_AUDIO_EP_STATE_DISABLING:
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return "disabling";
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case BT_AUDIO_EP_STATE_RELEASING:
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return "releasing";
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default:
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return "unknown";
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}
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}
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bool bt_audio_ep_is_broadcast_snk(const struct bt_audio_ep *ep);
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bool bt_audio_ep_is_broadcast_src(const struct bt_audio_ep *ep);
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