| /* |
| * Copyright (c) 2021-2023 Nordic Semiconductor ASA |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #if defined(CONFIG_BT_BAP_BROADCAST_SOURCE) |
| |
| #include <zephyr/bluetooth/bluetooth.h> |
| #include <zephyr/bluetooth/audio/audio.h> |
| #include <zephyr/bluetooth/audio/bap.h> |
| #include <zephyr/bluetooth/audio/bap_lc3_preset.h> |
| #include "common.h" |
| |
| /* When BROADCAST_ENQUEUE_COUNT > 1 we can enqueue enough buffers to ensure that |
| * the controller is never idle |
| */ |
| #define BROADCAST_ENQUEUE_COUNT 2U |
| #define TOTAL_BUF_NEEDED (BROADCAST_ENQUEUE_COUNT * CONFIG_BT_BAP_BROADCAST_SRC_STREAM_COUNT) |
| |
| BUILD_ASSERT(CONFIG_BT_ISO_TX_BUF_COUNT >= TOTAL_BUF_NEEDED, |
| "CONFIG_BT_ISO_TX_BUF_COUNT should be at least " |
| "BROADCAST_ENQUEUE_COUNT * CONFIG_BT_BAP_BROADCAST_SRC_STREAM_COUNT"); |
| |
| NET_BUF_POOL_FIXED_DEFINE(tx_pool, |
| TOTAL_BUF_NEEDED, |
| BT_ISO_SDU_BUF_SIZE(CONFIG_BT_ISO_TX_MTU), |
| CONFIG_BT_CONN_TX_USER_DATA_SIZE, NULL); |
| |
| extern enum bst_result_t bst_result; |
| static struct bt_bap_stream broadcast_source_streams[CONFIG_BT_BAP_BROADCAST_SRC_STREAM_COUNT]; |
| static struct bt_bap_stream *streams[ARRAY_SIZE(broadcast_source_streams)]; |
| static struct bt_bap_lc3_preset preset_16_2_1 = BT_BAP_LC3_BROADCAST_PRESET_16_2_1( |
| BT_AUDIO_LOCATION_FRONT_LEFT, BT_AUDIO_CONTEXT_TYPE_UNSPECIFIED); |
| static struct bt_bap_lc3_preset preset_16_2_2 = BT_BAP_LC3_BROADCAST_PRESET_16_2_2( |
| BT_AUDIO_LOCATION_FRONT_LEFT, BT_AUDIO_CONTEXT_TYPE_UNSPECIFIED); |
| CREATE_FLAG(flag_stopping); |
| |
| static K_SEM_DEFINE(sem_started, 0U, ARRAY_SIZE(streams)); |
| static K_SEM_DEFINE(sem_stopped, 0U, ARRAY_SIZE(streams)); |
| |
| static void started_cb(struct bt_bap_stream *stream) |
| { |
| printk("Stream %p started\n", stream); |
| k_sem_give(&sem_started); |
| } |
| |
| static void stopped_cb(struct bt_bap_stream *stream, uint8_t reason) |
| { |
| printk("Stream %p stopped with reason 0x%02X\n", stream, reason); |
| k_sem_give(&sem_stopped); |
| } |
| |
| static void sent_cb(struct bt_bap_stream *stream) |
| { |
| static uint8_t mock_data[CONFIG_BT_ISO_TX_MTU]; |
| static bool mock_data_initialized; |
| static uint16_t seq_num; |
| struct net_buf *buf; |
| int ret; |
| |
| if (TEST_FLAG(flag_stopping)) { |
| return; |
| } |
| |
| if (!mock_data_initialized) { |
| for (size_t i = 0U; i < ARRAY_SIZE(mock_data); i++) { |
| /* Initialize mock data */ |
| mock_data[i] = (uint8_t)i; |
| } |
| mock_data_initialized = true; |
| } |
| |
| buf = net_buf_alloc(&tx_pool, K_FOREVER); |
| if (buf == NULL) { |
| printk("Could not allocate buffer when sending on %p\n", |
| stream); |
| return; |
| } |
| |
| net_buf_reserve(buf, BT_ISO_CHAN_SEND_RESERVE); |
| /* Use preset_16_2_1 as that is the config we end up using */ |
| net_buf_add_mem(buf, mock_data, preset_16_2_1.qos.sdu); |
| ret = bt_bap_stream_send(stream, buf, seq_num++, |
| BT_ISO_TIMESTAMP_NONE); |
| if (ret < 0) { |
| /* This will end broadcasting on this stream. */ |
| printk("Unable to broadcast data on %p: %d\n", stream, ret); |
| net_buf_unref(buf); |
| return; |
| } |
| } |
| |
| static struct bt_bap_stream_ops stream_ops = { |
| .started = started_cb, |
| .stopped = stopped_cb, |
| .sent = sent_cb |
| }; |
| |
| static int setup_broadcast_source(struct bt_bap_broadcast_source **source) |
| { |
| struct bt_codec_data bis_codec_data = BT_CODEC_DATA(BT_CODEC_CONFIG_LC3_FREQ, |
| BT_CODEC_CONFIG_LC3_FREQ_16KHZ); |
| struct bt_bap_broadcast_source_stream_param |
| stream_params[ARRAY_SIZE(broadcast_source_streams)]; |
| struct bt_bap_broadcast_source_subgroup_param |
| subgroup_params[CONFIG_BT_BAP_BROADCAST_SRC_SUBGROUP_COUNT]; |
| struct bt_bap_broadcast_source_create_param create_param; |
| int err; |
| |
| (void)memset(broadcast_source_streams, 0, |
| sizeof(broadcast_source_streams)); |
| |
| for (size_t i = 0; i < ARRAY_SIZE(stream_params); i++) { |
| stream_params[i].stream = &broadcast_source_streams[i]; |
| bt_bap_stream_cb_register(stream_params[i].stream, |
| &stream_ops); |
| stream_params[i].data_count = 1U; |
| stream_params[i].data = &bis_codec_data; |
| } |
| |
| for (size_t i = 0U; i < ARRAY_SIZE(subgroup_params); i++) { |
| subgroup_params[i].params_count = 1U; |
| subgroup_params[i].params = &stream_params[i]; |
| subgroup_params[i].codec = &preset_16_2_1.codec; |
| } |
| |
| create_param.params_count = ARRAY_SIZE(subgroup_params); |
| create_param.params = subgroup_params; |
| create_param.qos = &preset_16_2_2.qos; |
| create_param.packing = BT_ISO_PACKING_SEQUENTIAL; |
| create_param.encryption = false; |
| |
| printk("Creating broadcast source with %zu subgroups and %zu streams\n", |
| ARRAY_SIZE(subgroup_params), ARRAY_SIZE(stream_params)); |
| err = bt_bap_broadcast_source_create(&create_param, source); |
| if (err != 0) { |
| printk("Unable to create broadcast source: %d\n", err); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int setup_extended_adv(struct bt_bap_broadcast_source *source, struct bt_le_ext_adv **adv) |
| { |
| /* Broadcast Audio Streaming Endpoint advertising data */ |
| NET_BUF_SIMPLE_DEFINE(ad_buf, |
| BT_UUID_SIZE_16 + BT_AUDIO_BROADCAST_ID_SIZE); |
| NET_BUF_SIMPLE_DEFINE(base_buf, 128); |
| struct bt_data ext_ad; |
| struct bt_data per_ad; |
| uint32_t broadcast_id; |
| int err; |
| |
| /* Create a non-connectable non-scannable advertising set */ |
| err = bt_le_ext_adv_create(BT_LE_EXT_ADV_NCONN_NAME, NULL, adv); |
| if (err != 0) { |
| printk("Unable to create extended advertising set: %d\n", err); |
| return err; |
| } |
| |
| /* Set periodic advertising parameters */ |
| err = bt_le_per_adv_set_param(*adv, BT_LE_PER_ADV_DEFAULT); |
| if (err) { |
| printk("Failed to set periodic advertising parameters: %d\n", |
| err); |
| return err; |
| } |
| |
| err = bt_bap_broadcast_source_get_id(source, &broadcast_id); |
| if (err != 0) { |
| printk("Unable to get broadcast ID: %d\n", err); |
| return err; |
| } |
| |
| /* Setup extended advertising data */ |
| net_buf_simple_add_le16(&ad_buf, BT_UUID_BROADCAST_AUDIO_VAL); |
| net_buf_simple_add_le24(&ad_buf, broadcast_id); |
| ext_ad.type = BT_DATA_SVC_DATA16; |
| ext_ad.data_len = ad_buf.len; |
| ext_ad.data = ad_buf.data; |
| err = bt_le_ext_adv_set_data(*adv, &ext_ad, 1, NULL, 0); |
| if (err != 0) { |
| printk("Failed to set extended advertising data: %d\n", err); |
| return err; |
| } |
| |
| /* Setup periodic advertising data */ |
| err = bt_bap_broadcast_source_get_base(source, &base_buf); |
| if (err != 0) { |
| printk("Failed to get encoded BASE: %d\n", err); |
| return err; |
| } |
| |
| per_ad.type = BT_DATA_SVC_DATA16; |
| per_ad.data_len = base_buf.len; |
| per_ad.data = base_buf.data; |
| err = bt_le_per_adv_set_data(*adv, &per_ad, 1); |
| if (err != 0) { |
| printk("Failed to set periodic advertising data: %d\n", err); |
| return err; |
| } |
| |
| /* Start extended advertising */ |
| err = bt_le_ext_adv_start(*adv, BT_LE_EXT_ADV_START_DEFAULT); |
| if (err) { |
| printk("Failed to start extended advertising: %d\n", err); |
| return err; |
| } |
| |
| /* Enable Periodic Advertising */ |
| err = bt_le_per_adv_start(*adv); |
| if (err) { |
| printk("Failed to enable periodic advertising: %d\n", err); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int stop_extended_adv(struct bt_le_ext_adv *adv) |
| { |
| int err; |
| |
| err = bt_le_per_adv_stop(adv); |
| if (err) { |
| printk("Failed to stop periodic advertising: %d\n", err); |
| return err; |
| } |
| |
| err = bt_le_ext_adv_stop(adv); |
| if (err) { |
| printk("Failed to stop extended advertising: %d\n", err); |
| return err; |
| } |
| |
| err = bt_le_ext_adv_delete(adv); |
| if (err) { |
| printk("Failed to delete extended advertising: %d\n", err); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static void test_main(void) |
| { |
| struct bt_codec_data new_metadata[1] = |
| BT_CODEC_LC3_CONFIG_META(BT_AUDIO_CONTEXT_TYPE_ALERTS); |
| struct bt_bap_broadcast_source *source; |
| struct bt_le_ext_adv *adv; |
| int err; |
| |
| err = bt_enable(NULL); |
| if (err) { |
| FAIL("Bluetooth init failed (err %d)\n", err); |
| return; |
| } |
| |
| printk("Bluetooth initialized\n"); |
| |
| err = setup_broadcast_source(&source); |
| if (err != 0) { |
| FAIL("Unable to setup broadcast source: %d\n", err); |
| return; |
| } |
| |
| err = setup_extended_adv(source, &adv); |
| if (err != 0) { |
| FAIL("Failed to setup extended advertising: %d\n", err); |
| return; |
| } |
| |
| printk("Reconfiguring broadcast source\n"); |
| err = bt_bap_broadcast_source_reconfig(source, &preset_16_2_1.codec, &preset_16_2_1.qos); |
| if (err != 0) { |
| FAIL("Unable to reconfigure broadcast source: %d\n", err); |
| return; |
| } |
| |
| printk("Starting broadcast source\n"); |
| err = bt_bap_broadcast_source_start(source, adv); |
| if (err != 0) { |
| FAIL("Unable to start broadcast source: %d\n", err); |
| return; |
| } |
| |
| /* Wait for all to be started */ |
| printk("Waiting for streams to be started\n"); |
| for (size_t i = 0U; i < ARRAY_SIZE(streams); i++) { |
| k_sem_take(&sem_started, K_FOREVER); |
| } |
| |
| /* Initialize sending */ |
| for (size_t i = 0U; i < ARRAY_SIZE(streams); i++) { |
| for (unsigned int j = 0U; j < BROADCAST_ENQUEUE_COUNT; j++) { |
| sent_cb(streams[i]); |
| } |
| } |
| |
| /* Keeping running for a little while */ |
| k_sleep(K_SECONDS(15)); |
| |
| /* Update metadata while streaming */ |
| printk("Updating metadata\n"); |
| err = bt_bap_broadcast_source_update_metadata(source, new_metadata, |
| ARRAY_SIZE(new_metadata)); |
| if (err != 0) { |
| FAIL("Failed to update metadata broadcast source: %d", err); |
| return; |
| } |
| |
| /* Keeping running for a little while */ |
| k_sleep(K_SECONDS(5)); |
| |
| printk("Stopping broadcast source\n"); |
| SET_FLAG(flag_stopping); |
| err = bt_bap_broadcast_source_stop(source); |
| if (err != 0) { |
| FAIL("Unable to stop broadcast source: %d\n", err); |
| return; |
| } |
| |
| /* Wait for all to be stopped */ |
| printk("Waiting for streams to be stopped\n"); |
| for (size_t i = 0U; i < ARRAY_SIZE(streams); i++) { |
| k_sem_take(&sem_stopped, K_FOREVER); |
| } |
| |
| printk("Deleting broadcast source\n"); |
| err = bt_bap_broadcast_source_delete(source); |
| if (err != 0) { |
| FAIL("Unable to delete broadcast source: %d\n", err); |
| return; |
| } |
| source = NULL; |
| |
| |
| err = stop_extended_adv(adv); |
| if (err != 0) { |
| FAIL("Unable to stop extended advertising: %d\n", err); |
| return; |
| } |
| adv = NULL; |
| |
| /* Recreate broadcast source to verify that it's possible */ |
| printk("Recreating broadcast source\n"); |
| err = setup_broadcast_source(&source); |
| if (err != 0) { |
| FAIL("Unable to setup broadcast source: %d\n", err); |
| return; |
| } |
| |
| printk("Deleting broadcast source\n"); |
| err = bt_bap_broadcast_source_delete(source); |
| if (err != 0) { |
| FAIL("Unable to delete broadcast source: %d\n", err); |
| return; |
| } |
| source = NULL; |
| |
| PASS("Broadcast source passed\n"); |
| } |
| |
| static const struct bst_test_instance test_broadcast_source[] = { |
| { |
| .test_id = "broadcast_source", |
| .test_post_init_f = test_init, |
| .test_tick_f = test_tick, |
| .test_main_f = test_main |
| }, |
| BSTEST_END_MARKER |
| }; |
| |
| struct bst_test_list *test_broadcast_source_install(struct bst_test_list *tests) |
| { |
| return bst_add_tests(tests, test_broadcast_source); |
| } |
| |
| #else /* CONFIG_BT_BAP_BROADCAST_SOURCE */ |
| |
| struct bst_test_list *test_broadcast_source_install(struct bst_test_list *tests) |
| { |
| return tests; |
| } |
| |
| #endif /* CONFIG_BT_BAP_BROADCAST_SOURCE */ |