69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
/*
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* Copyright (C) 2013-2014 Freescale Semiconductor, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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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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