83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/*
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* This file is part of the Xilinx DMA IP Core driver for Linux
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*
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* Copyright (c) 2016-present, Xilinx, Inc.
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* All rights reserved.
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*
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* This source code is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* The full GNU General Public License is included in this distribution in
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* the file called "COPYING".
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*/
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#ifndef _XDMA_IOCALLS_POSIX_H_
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#define _XDMA_IOCALLS_POSIX_H_
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#include <linux/ioctl.h>
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#define IOCTL_XDMA_PERF_V1 (1)
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#define XDMA_ADDRMODE_MEMORY (0)
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#define XDMA_ADDRMODE_FIXED (1)
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/*
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* S means "Set" through a ptr,
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* T means "Tell" directly with the argument value
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* G means "Get": reply by setting through a pointer
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* Q means "Query": response is on the return value
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* X means "eXchange": switch G and S atomically
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* H means "sHift": switch T and Q atomically
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*
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* _IO(type,nr) no arguments
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* _IOR(type,nr,datatype) read data from driver
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* _IOW(type,nr,datatype) write data to driver
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* _IORW(type,nr,datatype) read/write data
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*
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* _IOC_DIR(nr) returns direction
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* _IOC_TYPE(nr) returns magic
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* _IOC_NR(nr) returns number
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* _IOC_SIZE(nr) returns size
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*/
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struct xdma_performance_ioctl {
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/* IOCTL_XDMA_IOCTL_Vx */
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uint32_t version;
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uint32_t transfer_size;
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/* measurement */
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uint32_t stopped;
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uint32_t iterations;
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uint64_t clock_cycle_count;
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uint64_t data_cycle_count;
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uint64_t pending_count;
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};
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struct xdma_aperture_ioctl {
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uint64_t ep_addr;
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unsigned int aperture;
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unsigned long buffer;
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unsigned long len;
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int error;
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unsigned long done;
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};
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/* IOCTL codes */
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#define IOCTL_XDMA_PERF_START _IOW('q', 1, struct xdma_performance_ioctl *)
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#define IOCTL_XDMA_PERF_STOP _IOW('q', 2, struct xdma_performance_ioctl *)
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#define IOCTL_XDMA_PERF_GET _IOR('q', 3, struct xdma_performance_ioctl *)
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#define IOCTL_XDMA_ADDRMODE_SET _IOW('q', 4, int)
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#define IOCTL_XDMA_ADDRMODE_GET _IOR('q', 5, int)
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#define IOCTL_XDMA_ALIGN_GET _IOR('q', 6, int)
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#define IOCTL_XDMA_APERTURE_R _IOW('q', 7, struct xdma_aperture_ioctl *)
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#define IOCTL_XDMA_APERTURE_W _IOW('q', 8, struct xdma_aperture_ioctl *)
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#endif /* _XDMA_IOCALLS_POSIX_H_ */
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