/* SPDX-License-Identifier: MIT */
/*
 * SPDX-FileCopyrightText: Copyright (c) 2019-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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 */

#ifndef DCE_CLIENT_IPC_INTERNAL_H
#define DCE_CLIENT_IPC_INTERNAL_H

#include <linux/platform/tegra/dce/dce-client-ipc.h>
#include <dce-os-atomic.h>
#include <dce-os-work.h>

/**
 * struct tegra_dce_client_ipc - Data Structure to hold client specific ipc
 *				data pertaining to IPC type
 *
 * @valid : Tells if the client ipc data held by data structure is valid
 * @data : Pointer to any specific data passed by client during registration
 *         for corresponding IPC type
 * @type : Corresponding IPC type as defined in CPU driver
 * @handle : Corresponding handle allocated for client during registration
 * @int_type : IPC interface type for above IPC type as defined in CPU driver
 * @d : pointer to OS agnostic dce struct. Stores all runtime info for dce
 *      cluster elements
 * @recv_wait : wait condition variable used for IPC synchronization
 * @callback_fn : function pointer to the callback function passed by the
 *                client during registration
 */
struct tegra_dce_client_ipc {
	bool valid;
	void *data;
	uint32_t type;
	uint32_t handle;
	uint32_t int_type;
	struct tegra_dce *d;
	struct dce_wait_cond recv_wait;
	tegra_dce_client_ipc_callback_t callback_fn;
};

#define DCE_MAX_ASYNC_WORK	8
struct dce_async_work {
	struct tegra_dce *d;
	dce_os_work_handle_t async_event_work;
	dce_os_atomic_t in_use;
};

/**
 * @async_event_wq - Workqueue to process async events from DCE
 */
struct tegra_dce_async_ipc_info {
	dce_os_wq_handle_t async_event_wq;
	struct dce_async_work work[DCE_MAX_ASYNC_WORK];
};

void dce_client_ipc_wakeup(struct tegra_dce *d,	u32 ch_type);

int dce_client_ipc_wait(struct tegra_dce *d, u32 ch_type);

int dce_client_init(struct tegra_dce *d);

void dce_client_deinit(struct tegra_dce *d);

#endif