tests: Bluetooth: BAP: Add broadcast tests with multiple subgroups

Add 4 new tests for BAP broadcast:
1) One subgroup with one stream per subgroup
2) One subgroup with two streams per subgroup
3) Two subgroups with one stream per subgroup
4) Two subgroup with two streams per subgroup

To support these, the number of broadcast streams and data paths
was updated to be up to 4.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>

tests/bsim/bluetooth/audio/overlay-bt_ll_sw_split.conf

@@ -51,8 +51,8 @@ CONFIG_BT_CTLR_ADV_PERIODIC=y
 CONFIG_BT_CTLR_SYNC_TRANSFER_SENDER=y
 CONFIG_BT_CTLR_ADV_ISO=y
 CONFIG_BT_CTLR_ADV_ISO_SET=1
-CONFIG_BT_CTLR_ADV_ISO_STREAM_COUNT=2
-CONFIG_BT_CTLR_ADV_ISO_STREAM_MAX=2
+CONFIG_BT_CTLR_ADV_ISO_STREAM_COUNT=4
+CONFIG_BT_CTLR_ADV_ISO_STREAM_MAX=4
 CONFIG_BT_CTLR_ADV_ISO_PDU_LEN_MAX=247
 
 # ISO Receive Controller
@@ -61,8 +61,8 @@ CONFIG_BT_CTLR_SYNC_PERIODIC=y
 CONFIG_BT_CTLR_SYNC_TRANSFER_RECEIVER=y
 CONFIG_BT_CTLR_SYNC_ISO=y
 CONFIG_BT_CTLR_SCAN_SYNC_ISO_SET=1
-CONFIG_BT_CTLR_SYNC_ISO_STREAM_COUNT=2
-CONFIG_BT_CTLR_SYNC_ISO_STREAM_MAX=2
+CONFIG_BT_CTLR_SYNC_ISO_STREAM_COUNT=4
+CONFIG_BT_CTLR_SYNC_ISO_STREAM_MAX=4
 CONFIG_BT_CTLR_SYNC_ISO_PDU_LEN_MAX=251
 
 # ISO Connection Oriented
@@ -76,12 +76,12 @@ CONFIG_BT_CTLR_CONN_ISO_PDU_LEN_MAX=251
 CONFIG_BT_CTLR_CONN_ISO_LOW_LATENCY_POLICY=y
 
 # ISO Transmissions
-CONFIG_BT_CTLR_ISOAL_SOURCES=2
+CONFIG_BT_CTLR_ISOAL_SOURCES=4
 CONFIG_BT_CTLR_ISO_TX_BUFFERS=18
 CONFIG_BT_CTLR_ISO_TX_BUFFER_SIZE=255
 
 # ISO Receptions
-CONFIG_BT_CTLR_ISOAL_SINKS=2
+CONFIG_BT_CTLR_ISOAL_SINKS=4
 CONFIG_BT_CTLR_ISO_RX_BUFFERS=8
 
 # Tx Power Dynamic Control

tests/bsim/bluetooth/audio/overlay-nrf5340_cpunet_iso-bt_ll_sw_split.conf

@@ -5,3 +5,12 @@
 CONFIG_BT_ISO_TX_BUF_COUNT=18
 
 CONFIG_BT_CTLR_ISO_TX_BUFFERS=18
+
+CONFIG_BT_CTLR_ADV_ISO_STREAM_COUNT=4
+CONFIG_BT_CTLR_ADV_ISO_STREAM_MAX=4
+
+CONFIG_BT_CTLR_SYNC_ISO_STREAM_COUNT=4
+CONFIG_BT_CTLR_SYNC_ISO_STREAM_MAX=4
+
+CONFIG_BT_CTLR_ISOAL_SOURCES=4
+CONFIG_BT_CTLR_ISOAL_SINKS=4

tests/bsim/bluetooth/audio/prj.conf

@@ -44,10 +44,10 @@ CONFIG_BT_BAP_BROADCAST_SOURCE=y
 CONFIG_BT_BAP_BROADCAST_SINK=y
 CONFIG_BT_AUDIO_CODEC_CFG_MAX_METADATA_SIZE=196
 CONFIG_BT_AUDIO_CODEC_CAP_MAX_METADATA_SIZE=196
-CONFIG_BT_BAP_BROADCAST_SRC_STREAM_COUNT=2
-CONFIG_BT_BAP_BROADCAST_SRC_SUBGROUP_COUNT=1
-CONFIG_BT_BAP_BROADCAST_SNK_SUBGROUP_COUNT=1
-CONFIG_BT_BAP_BROADCAST_SNK_STREAM_COUNT=2
+CONFIG_BT_BAP_BROADCAST_SRC_STREAM_COUNT=4
+CONFIG_BT_BAP_BROADCAST_SRC_SUBGROUP_COUNT=2
+CONFIG_BT_BAP_BROADCAST_SNK_SUBGROUP_COUNT=2
+CONFIG_BT_BAP_BROADCAST_SNK_STREAM_COUNT=4
 CONFIG_BT_ISO_PERIPHERAL=y
 CONFIG_BT_ISO_MAX_CHAN=4
 CONFIG_BT_ISO_TX_MTU=310
@@ -131,7 +131,7 @@ CONFIG_BT_OTS_CLIENT=y
 
 # Broadcast Audio Scan Service and client
 CONFIG_BT_BAP_SCAN_DELEGATOR=y
-CONFIG_BT_BAP_BASS_MAX_SUBGROUPS=1
+CONFIG_BT_BAP_BASS_MAX_SUBGROUPS=2
 CONFIG_BT_AUDIO_CODEC_CFG_MAX_METADATA_SIZE=255
 CONFIG_BT_BAP_BROADCAST_ASSISTANT=y
 

tests/bsim/bluetooth/audio/test_scripts/_bap_broadcast.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: Apache-2.0
+
+dir_path=$(dirname "$0")
+
+set -e # Exit on error
+
+# Run all bap_broadcast_audio* tests
+for file in "$dir_path"/bap_broadcast_audio*.sh; do
+    if [ -f "$file" ]; then
+        echo "Running $file"
+        $file
+    fi
+done

tests/bsim/bluetooth/audio/test_scripts/bap_broadcast_audio_multiple_group_multiple_bis.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: Apache-2.0
+
+VERBOSITY_LEVEL=2
+EXECUTE_TIMEOUT=120
+
+source ${ZEPHYR_BASE}/tests/bsim/sh_common.source
+
+cd ${BSIM_OUT_PATH}/bin
+
+SIMULATION_ID="bap_broadcast_audio_multiple_group_multiple_bis"
+
+Execute ./bs_${BOARD_TS}_tests_bsim_bluetooth_audio_prj_conf \
+  -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} -d=0 -testid=broadcast_source \
+  -RealEncryption=1 -rs=23 -D=2 -argstest subgroup_cnt 2 streams_per_subgroup_cnt 2
+
+Execute ./bs_${BOARD_TS}_tests_bsim_bluetooth_audio_prj_conf \
+  -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} -d=1 -testid=broadcast_sink \
+  -RealEncryption=1 -rs=27 -D=2
+
+# Simulation time should be larger than the WAIT_TIME in common.h
+Execute ./bs_2G4_phy_v1 -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} \
+  -D=2 -sim_length=60e6 $@
+
+wait_for_background_jobs

tests/bsim/bluetooth/audio/test_scripts/bap_broadcast_audio_multiple_group_single_bis.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: Apache-2.0
+
+VERBOSITY_LEVEL=2
+EXECUTE_TIMEOUT=120
+
+source ${ZEPHYR_BASE}/tests/bsim/sh_common.source
+
+cd ${BSIM_OUT_PATH}/bin
+
+SIMULATION_ID="bap_broadcast_audio_multiple_group_single_bis"
+
+Execute ./bs_${BOARD_TS}_tests_bsim_bluetooth_audio_prj_conf \
+  -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} -d=0 -testid=broadcast_source \
+  -RealEncryption=1 -rs=23 -D=2 -argstest subgroup_cnt 2 streams_per_subgroup_cnt 1
+
+Execute ./bs_${BOARD_TS}_tests_bsim_bluetooth_audio_prj_conf \
+  -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} -d=1 -testid=broadcast_sink \
+  -RealEncryption=1 -rs=27 -D=2
+
+# Simulation time should be larger than the WAIT_TIME in common.h
+Execute ./bs_2G4_phy_v1 -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} \
+  -D=2 -sim_length=60e6 $@
+
+wait_for_background_jobs

tests/bsim/bluetooth/audio/test_scripts/bap_broadcast_audio_single_group_multiple_bis.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: Apache-2.0
+
+VERBOSITY_LEVEL=2
+EXECUTE_TIMEOUT=120
+
+source ${ZEPHYR_BASE}/tests/bsim/sh_common.source
+
+cd ${BSIM_OUT_PATH}/bin
+
+SIMULATION_ID="bap_broadcast_audio_single_group_multiple_bis"
+
+Execute ./bs_${BOARD_TS}_tests_bsim_bluetooth_audio_prj_conf \
+  -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} -d=0 -testid=broadcast_source \
+  -RealEncryption=1 -rs=23 -D=2 -argstest subgroup_cnt 1 streams_per_subgroup_cnt 2
+
+Execute ./bs_${BOARD_TS}_tests_bsim_bluetooth_audio_prj_conf \
+  -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} -d=1 -testid=broadcast_sink \
+  -RealEncryption=1 -rs=27 -D=2
+
+# Simulation time should be larger than the WAIT_TIME in common.h
+Execute ./bs_2G4_phy_v1 -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} \
+  -D=2 -sim_length=60e6 $@
+
+wait_for_background_jobs

tests/bsim/bluetooth/audio/test_scripts/bap_broadcast_audio_single_group_single_bis.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: Apache-2.0
+
+VERBOSITY_LEVEL=2
+EXECUTE_TIMEOUT=120
+
+source ${ZEPHYR_BASE}/tests/bsim/sh_common.source
+
+cd ${BSIM_OUT_PATH}/bin
+
+SIMULATION_ID="bap_broadcast_audio_single_group_single_bis"
+
+Execute ./bs_${BOARD_TS}_tests_bsim_bluetooth_audio_prj_conf \
+  -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} -d=0 -testid=broadcast_source \
+  -RealEncryption=1 -rs=23 -D=2 -argstest subgroup_cnt 1 streams_per_subgroup_cnt 1
+
+Execute ./bs_${BOARD_TS}_tests_bsim_bluetooth_audio_prj_conf \
+  -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} -d=1 -testid=broadcast_sink \
+  -RealEncryption=1 -rs=27 -D=2
+
+# Simulation time should be larger than the WAIT_TIME in common.h
+Execute ./bs_2G4_phy_v1 -v=${VERBOSITY_LEVEL} -s=${SIMULATION_ID} \
+  -D=2 -sim_length=60e6 $@
+
+wait_for_background_jobs