/* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
|
*
|
* This program is free software; you can redistribute it and/or modify
|
* it under the terms of the GNU General Public License version 2 and
|
* only version 2 as published by the Free Software Foundation.
|
*
|
* This program is distributed in the hope that it will be useful,
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
* GNU General Public License for more details.
|
*/
|
|
#ifndef _DPU_HW_BLK_H
|
#define _DPU_HW_BLK_H
|
|
#include <linux/types.h>
|
#include <linux/list.h>
|
#include <linux/atomic.h>
|
|
struct dpu_hw_blk;
|
|
/**
|
* struct dpu_hw_blk_ops - common hardware block operations
|
* @start: start operation on first get
|
* @stop: stop operation on last put
|
*/
|
struct dpu_hw_blk_ops {
|
int (*start)(struct dpu_hw_blk *);
|
void (*stop)(struct dpu_hw_blk *);
|
};
|
|
/**
|
* struct dpu_hw_blk - definition of hardware block object
|
* @list: list of hardware blocks
|
* @type: hardware block type
|
* @id: instance id
|
* @refcount: reference/usage count
|
*/
|
struct dpu_hw_blk {
|
struct list_head list;
|
u32 type;
|
int id;
|
atomic_t refcount;
|
struct dpu_hw_blk_ops ops;
|
};
|
|
int dpu_hw_blk_init(struct dpu_hw_blk *hw_blk, u32 type, int id,
|
struct dpu_hw_blk_ops *ops);
|
void dpu_hw_blk_destroy(struct dpu_hw_blk *hw_blk);
|
|
struct dpu_hw_blk *dpu_hw_blk_get(struct dpu_hw_blk *hw_blk, u32 type, int id);
|
void dpu_hw_blk_put(struct dpu_hw_blk *hw_blk);
|
#endif /*_DPU_HW_BLK_H */
|
