ASoC: Intel: avs: Declare path and its components

Declare representatives for all crucial elements which stream on ADSP
side is made of. That covers pipelines and modules subject which are
presented by struct avs_path_pipeline and avs_path_module respectively.
While struct avs_path_binding and struct avs_path do not represent any
object on firmware side directly, they are needed to help track the
interconnections and membership of every pipeline and module created.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220331135246.993089-10-cezary.rojewski@intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/avs/path.h

+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright(c) 2021 Intel Corporation. All rights reserved.
+ *
+ * Authors: Cezary Rojewski <cezary.rojewski@intel.com>
+ *          Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
+ */
+
+#ifndef __SOUND_SOC_INTEL_AVS_PATH_H
+#define __SOUND_SOC_INTEL_AVS_PATH_H
+
+#include <linux/list.h>
+#include "avs.h"
+#include "topology.h"
+
+struct avs_path {
+	u32 dma_id;
+	struct list_head ppl_list;
+	u32 state;
+
+	struct avs_tplg_path *template;
+	struct avs_dev *owner;
+	/* device path management */
+	struct list_head node;
+};
+
+struct avs_path_pipeline {
+	u8 instance_id;
+	struct list_head mod_list;
+	struct list_head binding_list;
+
+	struct avs_tplg_pipeline *template;
+	struct avs_path *owner;
+	/* path pipelines management */
+	struct list_head node;
+};
+
+struct avs_path_module {
+	u16 module_id;
+	u16 instance_id;
+
+	struct avs_tplg_module *template;
+	struct avs_path_pipeline *owner;
+	/* pipeline modules management */
+	struct list_head node;
+};
+
+struct avs_path_binding {
+	struct avs_path_module *source;
+	u8 source_pin;
+	struct avs_path_module *sink;
+	u8 sink_pin;
+
+	struct avs_tplg_binding *template;
+	struct avs_path_pipeline *owner;
+	/* pipeline bindings management */
+	struct list_head node;
+};
+
+#endif