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5550201c0f
Add RPMSG_GET_OUTGOING_FLOWCONTROL and RPMSG_SET_INCOMING_FLOWCONTROL IOCTL support for rpmsg char device nodes to get/set the low level transport signals. Signed-off-by: Chris Lew <quic_clew@quicinc.com> Signed-off-by: Deepak Kumar Singh <quic_deesin@quicinc.com> Signed-off-by: Sarannya S <quic_sarannya@quicinc.com> Acked-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com> Link: https://lore.kernel.org/r/1688679698-31274-4-git-send-email-quic_sarannya@quicinc.com Signed-off-by: Bjorn Andersson <andersson@kernel.org>
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Copyright (c) 2016, Linaro Ltd.
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*/
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#ifndef _UAPI_RPMSG_H_
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#define _UAPI_RPMSG_H_
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#include <linux/ioctl.h>
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#include <linux/types.h>
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#define RPMSG_ADDR_ANY 0xFFFFFFFF
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/**
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* struct rpmsg_endpoint_info - endpoint info representation
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* @name: name of service
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* @src: local address. To set to RPMSG_ADDR_ANY if not used.
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* @dst: destination address. To set to RPMSG_ADDR_ANY if not used.
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*/
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struct rpmsg_endpoint_info {
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char name[32];
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__u32 src;
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__u32 dst;
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};
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/**
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* Instantiate a new rmpsg char device endpoint.
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*/
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#define RPMSG_CREATE_EPT_IOCTL _IOW(0xb5, 0x1, struct rpmsg_endpoint_info)
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/**
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* Destroy a rpmsg char device endpoint created by the RPMSG_CREATE_EPT_IOCTL.
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*/
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#define RPMSG_DESTROY_EPT_IOCTL _IO(0xb5, 0x2)
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/**
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* Instantiate a new local rpmsg service device.
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*/
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#define RPMSG_CREATE_DEV_IOCTL _IOW(0xb5, 0x3, struct rpmsg_endpoint_info)
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/**
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* Release a local rpmsg device.
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*/
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#define RPMSG_RELEASE_DEV_IOCTL _IOW(0xb5, 0x4, struct rpmsg_endpoint_info)
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/**
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* Get the flow control state of the remote rpmsg char device.
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*/
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#define RPMSG_GET_OUTGOING_FLOWCONTROL _IOR(0xb5, 0x5, int)
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/**
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* Set the flow control state of the local rpmsg char device.
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*/
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#define RPMSG_SET_INCOMING_FLOWCONTROL _IOR(0xb5, 0x6, int)
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#endif
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