tests: Bluetooth: ISO: BIS: Enable BIS test for nRF5340bsim

Enable support for building and running the BIS ISO host test
on the nRF5340bsim board.

The purpose of this is to test the ISO fragmentation on both the
nRF52bsim and nRF5340bsim, as they use different drivers.

Signed-off-by: Emil Gydesen <[email protected]>

tests/bsim/bluetooth/compile.nrf5340bsim_nrf5340_cpuapp.sh

@@ -19,5 +19,6 @@ app=tests/bsim/bluetooth/ll/cis conf_overlay=overlay-acl_group.conf sysbuild=1 c
 run_in_background ${ZEPHYR_BASE}/tests/bsim/bluetooth/samples/compile.sh
 run_in_background ${ZEPHYR_BASE}/tests/bsim/bluetooth/audio/compile.sh
 run_in_background ${ZEPHYR_BASE}/tests/bsim/bluetooth/audio_samples/compile.sh
+run_in_background ${ZEPHYR_BASE}/tests/bsim/bluetooth/host/iso/bis/compile.sh
 
 wait_for_background_jobs

tests/bsim/bluetooth/host/iso/bis/Kconfig.sysbuild

@@ -0,0 +1,22 @@
+# Copyright (c) 2023-2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+source "share/sysbuild/Kconfig"
+
+config NET_CORE_BOARD
+	string
+	default "nrf5340dk/nrf5340/cpunet" if "$(BOARD)" = "nrf5340dk"
+	default "nrf5340_audio_dk/nrf5340/cpunet" if "$(BOARD)" = "nrf5340_audio_dk"
+	default "nrf5340bsim/nrf5340/cpunet" if $(BOARD_TARGET_STRING) = "NRF5340BSIM_NRF5340_CPUAPP"
+
+config NET_CORE_IMAGE_HCI_IPC
+	bool "HCI IPC image on network core"
+	default y
+	depends on NET_CORE_BOARD != ""
+
+
+config NATIVE_SIMULATOR_PRIMARY_MCU_INDEX
+	int
+	# Let's pass the test arguments to the application MCU test
+	# otherwise by default they would have gone to the net core.
+	default 0 if $(BOARD_TARGET_STRING) = "NRF5340BSIM_NRF5340_CPUAPP"

tests/bsim/bluetooth/host/iso/bis/compile.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+# Copyright 2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+# Compile all the applications needed by the bsim tests in these subfolders
+
+#set -x #uncomment this line for debugging
+set -ue
+: "${ZEPHYR_BASE:?ZEPHYR_BASE must be set to point to the zephyr root directory}"
+
+source ${ZEPHYR_BASE}/tests/bsim/compile.source
+
+if [ "${BOARD_TS}" == "nrf5340bsim_nrf5340_cpuapp" ]; then
+    app=tests/bsim/bluetooth/host/iso/bis exe_name=bs_${BOARD_TS}_${app}_prj_conf \
+      sysbuild=1 compile
+else
+    app=tests/bsim/bluetooth/host/iso/bis conf_overlay=controller.conf \
+      exe_name=bs_${BOARD_TS}_${app}_prj_conf \
+      sysbuild=1 compile
+fi
+
+wait_for_background_jobs

tests/bsim/bluetooth/host/iso/bis/controller.conf

@@ -0,0 +1,13 @@
+# Controller ISO configs
+CONFIG_BT_CTLR_ADV_ISO=y
+CONFIG_BT_CTLR_ADV_ISO_STREAM_MAX=4
+CONFIG_BT_CTLR_ADV_ISO_STREAM_COUNT=4
+CONFIG_BT_CTLR_SYNC_ISO=y
+CONFIG_BT_CTLR_SYNC_ISO_STREAM_MAX=4
+CONFIG_BT_CTLR_SYNC_ISO_STREAM_COUNT=4
+
+CONFIG_BT_CTLR_ISO_TX_BUFFER_SIZE=208
+# The host may fragment a single SDU into 3, so this needs to be 3 x CONFIG_BT_ISO_TX_BUF_COUNT
+CONFIG_BT_CTLR_ISO_TX_BUFFERS=12
+CONFIG_BT_CTLR_ISOAL_SOURCES=4
+CONFIG_BT_CTLR_ISOAL_SINKS=4

tests/bsim/bluetooth/host/iso/bis/prj.conf

@@ -10,21 +10,14 @@ CONFIG_BT_DEVICE_NAME="BIS test"
 
 CONFIG_BT_ISO_BROADCASTER=y
 CONFIG_BT_ISO_SYNC_RECEIVER=y
-CONFIG_BT_ISO_TX_BUF_COUNT=4
 CONFIG_BT_ISO_MAX_CHAN=4
+
+CONFIG_BT_ISO_TX_BUF_COUNT=4
 CONFIG_BT_ISO_TX_MTU=200
+
+CONFIG_BT_ISO_RX_BUF_COUNT=4
 # The broadcaster may send 3 x CONFIG_BT_ISO_TX_MTU in a single SDU
 CONFIG_BT_ISO_RX_MTU=600
 
 CONFIG_BT_ISO_LOG_LEVEL_DBG=y
-
-# Controller ISO configs
-CONFIG_BT_CTLR_ADV_ISO=y
-CONFIG_BT_CTLR_ADV_ISO_STREAM_MAX=4
-CONFIG_BT_CTLR_SYNC_ISO=y
-CONFIG_BT_CTLR_SYNC_ISO_STREAM_MAX=4
-CONFIG_BT_CTLR_ISO_TX_BUFFER_SIZE=208
-# The host may fragment a single SDU into 3, so this needs to be 3 x CONFIG_BT_ISO_TX_BUF_COUNT
-CONFIG_BT_CTLR_ISO_TX_BUFFERS=12
-CONFIG_BT_CTLR_ISOAL_SOURCES=4
-CONFIG_BT_CTLR_ISOAL_SINKS=4
+# CONFIG_BT_DEBUG_ISO_DATA=y

tests/bsim/bluetooth/host/iso/bis/src/bis_receiver.c

@@ -20,7 +20,7 @@
 
 #include "common.h"
 
-LOG_MODULE_REGISTER(bis_receiver, LOG_LEVEL_INF);
+LOG_MODULE_REGISTER(bis_receiver, LOG_LEVEL_DBG);
 
 #define PA_SYNC_INTERVAL_TO_TIMEOUT_RATIO 5U /* Set the timeout relative to interval */
 /* The broadcaster will send SDUs from 0 to CONFIG_BT_ISO_RX_MTU in the SDU data length. We want to

tests/bsim/bluetooth/host/iso/bis/sysbuild.cmake

@@ -0,0 +1,32 @@
+# Copyright (c) 2023-2024 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+if(SB_CONFIG_NET_CORE_IMAGE_HCI_IPC)
+	# For builds in the nrf5340, we build the netcore image with the controller
+
+	set(NET_APP hci_ipc)
+	set(NET_APP_SRC_DIR ${ZEPHYR_BASE}/samples/bluetooth/${NET_APP})
+
+	ExternalZephyrProject_Add(
+		APPLICATION ${NET_APP}
+		SOURCE_DIR  ${NET_APP_SRC_DIR}
+		BOARD       ${SB_CONFIG_NET_CORE_BOARD}
+	)
+
+	set(${NET_APP}_CONF_FILE
+	 ${NET_APP_SRC_DIR}/nrf5340_cpunet_iso-bt_ll_sw_split.conf
+	 CACHE INTERNAL ""
+	)
+
+	set(${NET_APP}_EXTRA_CONF_FILE
+	 ${APP_DIR}/controller.conf
+	 CACHE INTERNAL ""
+	)
+
+	native_simulator_set_child_images(${DEFAULT_IMAGE} ${NET_APP})
+endif()
+
+native_simulator_set_final_executable(${DEFAULT_IMAGE})
+
+
+native_simulator_set_primary_mcu_index(${DEFAULT_IMAGE} ${NET_APP})

tests/bsim/bluetooth/tests.nrf5340bsim_nrf5340_cpuapp.txt

@@ -5,3 +5,4 @@ tests/bsim/bluetooth/ll/bis/tests_scripts/broadcast_iso.sh
 tests/bsim/bluetooth/samples/central_hr_peripheral_hr/
 tests/bsim/bluetooth/audio_samples/
 tests/bsim/bluetooth/audio/
+tests/bsim/bluetooth/host/iso/bis/