57 lines
922 B
C
57 lines
922 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2013-2014 Freescale Semiconductor, Inc. All Rights Reserved.
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*
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* Copyright 2019 NXP
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*/
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#ifndef _PXP_DEVICE
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#define _PXP_DEVICE
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#include <linux/idr.h>
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#include <linux/hash.h>
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#include <uapi/linux/pxp_device.h>
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struct pxp_irq_info {
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wait_queue_head_t waitq;
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atomic_t irq_pending;
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int hist_status;
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};
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struct pxp_buffer_hash {
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struct hlist_head *hash_table;
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u32 order;
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spinlock_t hash_lock;
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};
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struct pxp_buf_obj {
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uint32_t handle;
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uint32_t size;
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uint32_t mem_type;
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unsigned long offset;
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void *virtual;
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struct hlist_node item;
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};
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struct pxp_chan_obj {
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uint32_t handle;
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struct dma_chan *chan;
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};
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/* File private data */
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struct pxp_file {
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struct file *filp;
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/* record allocated dma buffer */
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struct idr buffer_idr;
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spinlock_t buffer_lock;
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/* record allocated dma channel */
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struct idr channel_idr;
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spinlock_t channel_lock;
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};
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#endif
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