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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 licensed under both the BSD-style license (found in the
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
* in the COPYING file in the root directory of this source tree).
* You may select, at your option, one of the above-listed licenses.
*/
#ifndef _XDMA_IOCALLS_POSIX_H_
#define _XDMA_IOCALLS_POSIX_H_
#include <linux/ioctl.h>
/* Use 'x' as magic number */
#define XDMA_IOC_MAGIC 'x'
/* XL OpenCL X->58(ASCII), L->6C(ASCII), O->0 C->C L->6C(ASCII); */
#define XDMA_XCL_MAGIC 0X586C0C6C
/*
* 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
*/
enum XDMA_IOC_TYPES {
XDMA_IOC_NOP,
XDMA_IOC_INFO,
XDMA_IOC_OFFLINE,
XDMA_IOC_ONLINE,
XDMA_IOC_MAX
};
struct xdma_ioc_base {
unsigned int magic;
unsigned int command;
};
struct xdma_ioc_info {
struct xdma_ioc_base base;
unsigned short vendor;
unsigned short device;
unsigned short subsystem_vendor;
unsigned short subsystem_device;
unsigned int dma_engine_version;
unsigned int driver_version;
unsigned long long feature_id;
unsigned short domain;
unsigned char bus;
unsigned char dev;
unsigned char func;
};
/* IOCTL codes */
#define XDMA_IOCINFO _IOWR(XDMA_IOC_MAGIC, XDMA_IOC_INFO, \
struct xdma_ioc_info)
#define XDMA_IOCOFFLINE _IO(XDMA_IOC_MAGIC, XDMA_IOC_OFFLINE)
#define XDMA_IOCONLINE _IO(XDMA_IOC_MAGIC, XDMA_IOC_ONLINE)
#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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