64 lines
2.0 KiB
C
64 lines
2.0 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 _UAPI_PXP_DEVICE
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#define _UAPI_PXP_DEVICE
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#include <linux/pxp_dma.h>
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struct pxp_chan_handle {
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unsigned int handle;
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int hist_status;
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};
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struct pxp_mem_desc {
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unsigned int handle;
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unsigned int size;
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dma_addr_t phys_addr;
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unsigned int virt_uaddr; /* virtual user space address */
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unsigned int mtype;
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};
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struct pxp_mem_flush {
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unsigned int handle;
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unsigned int type;
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};
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#define PXP_IOC_MAGIC 'P'
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#define PXP_IOC_GET_CHAN _IOR(PXP_IOC_MAGIC, 0, struct pxp_mem_desc)
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#define PXP_IOC_PUT_CHAN _IOW(PXP_IOC_MAGIC, 1, struct pxp_mem_desc)
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#define PXP_IOC_CONFIG_CHAN _IOW(PXP_IOC_MAGIC, 2, struct pxp_mem_desc)
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#define PXP_IOC_START_CHAN _IOW(PXP_IOC_MAGIC, 3, struct pxp_mem_desc)
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#define PXP_IOC_GET_PHYMEM _IOWR(PXP_IOC_MAGIC, 4, struct pxp_mem_desc)
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#define PXP_IOC_PUT_PHYMEM _IOW(PXP_IOC_MAGIC, 5, struct pxp_mem_desc)
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#define PXP_IOC_WAIT4CMPLT _IOWR(PXP_IOC_MAGIC, 6, struct pxp_mem_desc)
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#define PXP_IOC_FLUSH_PHYMEM _IOR(PXP_IOC_MAGIC, 7, struct pxp_mem_flush)
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/* Memory types supported*/
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#define MEMORY_TYPE_UNCACHED 0x0
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#define MEMORY_TYPE_WC 0x1
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#define MEMORY_TYPE_CACHED 0x2
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/* Cache flush operations */
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#define CACHE_CLEAN 0x1
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#define CACHE_INVALIDATE 0x2
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#define CACHE_FLUSH 0x4
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#endif
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