Your Name
40 lines
949 B
C
Executable File
40 lines
949 B
C
Executable File
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2019 Synopsys, Inc. and/or its affiliates.
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*
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* Author: Vitor Soares <vitor.soares@synopsys.com>
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*/
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#ifndef _UAPI_I3C_DEV_H_
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#define _UAPI_I3C_DEV_H_
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#include <linux/types.h>
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#include <linux/ioctl.h>
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#define VERSION "0.1"
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/* IOCTL commands */
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#define I3C_DEV_IOC_MAGIC 0x07
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/**
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* struct i3c_ioc_priv_xfer - I3C SDR ioctl private transfer
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* @data: Holds pointer to userspace buffer with transmit data.
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* @len: Length of data buffer buffers, in bytes.
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* @rnw: encodes the transfer direction. true for a read, false for a write
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*/
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struct i3c_ioc_priv_xfer {
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__u64 data;
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__u16 len;
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__u8 rnw;
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__u8 pad[5];
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};
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#define I3C_PRIV_XFER_SIZE(N) \
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((((sizeof(struct i3c_ioc_priv_xfer)) * (N)) < (1 << _IOC_SIZEBITS)) \
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? ((sizeof(struct i3c_ioc_priv_xfer)) * (N)) : 0)
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#define I3C_IOC_PRIV_XFER(N) \
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_IOC(_IOC_READ|_IOC_WRITE, I3C_DEV_IOC_MAGIC, 30, I3C_PRIV_XFER_SIZE(N))
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#endif
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