waves: add support for IPC4 compilation, including as LLEXT

With this waves can be built as a part of IPC4 configuration - either
linked into the base image or as a LLEXT module.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>

Author: lyakh

src/audio/module_adapter/Kconfig

@@ -174,8 +174,9 @@ endif # Cadence
 		  files specific to PASSTHROUGH base codecs.
 
 	config WAVES_CODEC
-	bool "Waves codec"
+	tristate "Waves codec"
 	select WAVES_CODEC_STUB if COMP_STUBS
+	default m if LIBRARY_DEFAULT_MODULAR
 	default n
 	help
 		Select to include Waves codec. Waves codec implements MaxxEffect API.

src/audio/module_adapter/module/waves/llext/CMakeLists.txt

@@ -0,0 +1,11 @@
+# Copyright (c) 2025 Intel Corporation.
+# SPDX-License-Identifier: Apache-2.0
+
+if(CONFIG_WAVES_CODEC_STUB)
+sof_llext_build("waves"
+	SOURCES ../waves.c
+		../maxx_stub.c
+)
+else()
+message(FATAL_ERROR "Add library linking support in src/audio/module_adapter/module/waves/llext/CMakeLists.txt")
+endif()

src/audio/module_adapter/module/waves/llext/llext.toml.h

@@ -0,0 +1,6 @@
+#include <tools/rimage/config/platform.toml>
+#define LOAD_TYPE "2"
+#include "../waves.toml"
+
+[module]
+count = __COUNTER__

src/audio/module_adapter/module/waves/waves.c

@@ -19,7 +19,9 @@
 #define NUM_IO_STREAMS (1)
 
 SOF_DEFINE_REG_UUID(waves);
+
 DECLARE_TR_CTX(waves_tr, SOF_UUID(waves_uuid), LOG_LEVEL_INFO);
+LOG_MODULE_REGISTER(waves, CONFIG_SOF_LOG_LEVEL);
 
 struct waves_codec_data {
 	uint32_t                sample_rate;
@@ -248,7 +250,8 @@ static int waves_effect_check(struct comp_dev *dev)
 
 	/* different interleaving is not supported */
 	if (audio_stream_get_buffer_fmt(src_fmt) != audio_stream_get_buffer_fmt(snk_fmt)) {
-		comp_err(dev, "waves_effect_check() source %d sink %d buffer format mismatch");
+		comp_err(dev, "waves_effect_check() source %d sink %d buffer format mismatch",
+			 audio_stream_get_buffer_fmt(src_fmt), audio_stream_get_buffer_fmt(snk_fmt));
 		return -EINVAL;
 	}
 
@@ -896,3 +899,24 @@ static const struct module_interface waves_interface = {
 
 DECLARE_MODULE_ADAPTER(waves_interface, waves_uuid, waves_tr);
 SOF_MODULE_INIT(waves, sys_comp_module_waves_interface_init);
+
+#if CONFIG_WAVES_CODEC_MODULE && CONFIG_WAVES_CODEC_STUB
+/* modular: llext dynamic link */
+
+#include <module/module/api_ver.h>
+#include <module/module/llext.h>
+#include <rimage/sof/user/manifest.h>
+
+/* d944281a-afe9-4695-a043-d7f62b89538e */
+#define UUID_WAVES_CODEC 0x1A, 0x28, 0x44, 0xD9, 0xE9, 0xAF, 0x95, 0x46, \
+		0xA0, 0x43, 0xD7, 0xF6, 0x2B, 0x89, 0x53, 0x8E
+
+SOF_LLEXT_MOD_ENTRY(waves, &waves_interface);
+
+static const struct sof_man_module_manifest mod_manifest __section(".module") __used =
+	SOF_LLEXT_MODULE_MANIFEST("WAVES", waves_llext_entry,
+				  7, UUID_WAVES_CODEC, 8);
+
+SOF_LLEXT_BUILDINFO;
+
+#endif

src/audio/module_adapter/module/waves/waves.toml

@@ -0,0 +1,24 @@
+#ifndef LOAD_TYPE
+#define LOAD_TYPE "0"
+#endif
+
+	REM # waves module config
+	[[module.entry]]
+	name = "WAVES"
+	uuid = "D944281A-AFE9-4695-A043-D7F62B89538E"
+	affinity_mask = "0x1"
+	instance_count = "4"
+	domain_types = "0"
+	load_type = LOAD_TYPE
+	module_type = "13"
+	auto_start = "0"
+	sched_caps = [1, 0x00008000]
+
+	REM # pin = [dir, type, sample rate, size, container, channel-cfg]
+	pin = [0, 0, 0xfeef, 0xf, 0xf, 0x45ff,
+		1, 0, 0xfeef, 0xf, 0xf, 0x1ff]
+
+	REM # mod_cfg [PAR_0 PAR_1 PAR_2 PAR_3 IS_BYTES CPS IBS OBS MOD_FLAGS CPC OBLS]
+	mod_cfg = [0, 0, 0, 0, 4096, 1000000, 128, 128, 0, 0, 0]
+
+	index = __COUNTER__

tools/rimage/config/mtl.toml.h

@@ -134,6 +134,10 @@
 #include <audio/module_adapter/module/cadence.toml>
 #endif
 
+#if defined(CONFIG_WAVES_CODEC) || defined(LLEXT_FORCE_ALL_MODULAR)
+#include <audio/module_adapter/module/waves/waves.toml>
+#endif
+
 #if defined(CONFIG_COMP_RTNR) || defined(LLEXT_FORCE_ALL_MODULAR)
 #include <audio/rtnr/rtnr.toml>
 #endif

zephyr/CMakeLists.txt

@@ -1139,13 +1139,18 @@ elseif(CONFIG_DTS_CODEC)
 	endif()
 endif()
 
-zephyr_library_sources_ifdef(CONFIG_WAVES_CODEC
-	${SOF_AUDIO_PATH}/module_adapter/module/waves/waves.c
-)
-
-zephyr_library_sources_ifdef(CONFIG_WAVES_CODEC_STUB
-	${SOF_AUDIO_PATH}/module_adapter/module/waves/maxx_stub.c
-)
+if(CONFIG_WAVES_CODEC STREQUAL "m")
+	add_subdirectory(${SOF_AUDIO_PATH}/module_adapter/module/waves/llext
+			 ${PROJECT_BINARY_DIR}/waves_llext)
+	add_dependencies(app waves)
+elseif(CONFIG_WAVES_CODEC)
+	zephyr_library_sources(
+		${SOF_AUDIO_PATH}/module_adapter/module/waves/waves.c
+	)
+	zephyr_library_sources_ifdef(CONFIG_WAVES_CODEC_STUB
+		${SOF_AUDIO_PATH}/module_adapter/module/waves/maxx_stub.c
+	)
+endif()
 
 if(CONFIG_PROBE STREQUAL "m")
 	add_subdirectory(${SOF_SRC_PATH}/probe/llext