ASoC: SOF: ipc4-topology: add buffer type support

The corresponding IPC4 module of snd_soc_dapm_buffer widget is module
-to-module copier.
The module-to-module copier is a buffer-like component with demuxing
capabilities.
Rename the host_token_list to common_copier_token_list since it will
be used by host copier and module-to-module copier.
The setup callback is almost the same as sof_ipc4_widget_setup_pcm except
the gtw_cfg data, and the free callback is exactly the same as
sof_ipc4_widget_free_comp_pcm. To reduce the duplication, the commit
reuses the setup and free callbacks.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20230126110637.25542-1-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/sound/soc/sof/ipc4-topology.h b/sound/soc/sof/ipc4-topology.h
index 0aa87a8add5d..8dbbf69b0eb7 100644
--- a/sound/soc/sof/ipc4-topology.h
+++ b/sound/soc/sof/ipc4-topology.h
@@ -53,6 +53,8 @@
 
 #define ALH_MAX_NUMBER_OF_GTW   16
 
+#define SOF_IPC4_INVALID_NODE_ID	0xffffffff
+
 /*
  * The base of multi-gateways. Multi-gateways addressing starts from
  * ALH_MULTI_GTW_BASE and there are ALH_MULTI_GTW_COUNT multi-sources