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/*
* This file is part of the Xilinx DMA IP Core driver for Linux
*
* Copyright (c) 2016-present, Xilinx, Inc.
* All rights reserved.
*
* This source code is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* 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.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*/
#ifndef _XDMA_IOCALLS_POSIX_H_
#define _XDMA_IOCALLS_POSIX_H_
#include <linux/ioctl.h>
#define IOCTL_XDMA_PERF_V1 (1)
#define XDMA_ADDRMODE_MEMORY (0)
#define XDMA_ADDRMODE_FIXED (1)
/*
* S means "Set" through a ptr,
* T means "Tell" directly with the argument value
* G means "Get": reply by setting through a pointer
* Q means "Query": response is on the return value
* X means "eXchange": switch G and S atomically
* H means "sHift": switch T and Q atomically
*
* _IO(type,nr) no arguments
* _IOR(type,nr,datatype) read data from driver
* _IOW(type,nr.datatype) write data to driver
* _IORW(type,nr,datatype) read/write data
*
* _IOC_DIR(nr) returns direction
* _IOC_TYPE(nr) returns magic
* _IOC_NR(nr) returns number
* _IOC_SIZE(nr) returns size
*/
struct xdma_performance_ioctl {
/* IOCTL_XDMA_IOCTL_Vx */
uint32_t version;
uint32_t transfer_size;
/* measurement */
uint32_t stopped;
uint32_t iterations;
uint64_t clock_cycle_count;
uint64_t data_cycle_count;
uint64_t pending_count;
};
/* IOCTL codes */
#define IOCTL_XDMA_PERF_START _IOW('q', 1, struct xdma_performance_ioctl *)
#define IOCTL_XDMA_PERF_STOP _IOW('q', 2, struct xdma_performance_ioctl *)
#define IOCTL_XDMA_PERF_GET _IOR('q', 3, struct xdma_performance_ioctl *)
#define IOCTL_XDMA_ADDRMODE_SET _IOW('q', 4, int)
#define IOCTL_XDMA_ADDRMODE_GET _IOR('q', 5, int)
#define IOCTL_XDMA_ALIGN_GET _IOR('q', 6, int)
#endif /* _XDMA_IOCALLS_POSIX_H_ */
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