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110 lines
3.9 KiB
110 lines
3.9 KiB
/* Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only 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,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _NET_CNSS_GENETLINK_H_
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#define _NET_CNSS_GENETLINK_H_
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#define CLD80211_MAX_COMMANDS 40
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#define CLD80211_MAX_NL_DATA 4096
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/**
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* enum cld80211_attr - Driver/Application embeds the data in nlmsg with the
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* help of below attributes
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*
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* @CLD80211_ATTR_VENDOR_DATA: Embed all other attributes in this nested
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* attribute.
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* @CLD80211_ATTR_DATA: Embed complete data in this attribute
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* @CLD80211_ATTR_META_DATA: Embed meta data for above data. This will help
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* wlan driver to peek into request message packet without opening up definition
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* of complete request message.
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* @CLD80211_ATTR_CMD: cld80211 vendor subcommand in this attribute
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* @CLD80211_ATTR_CMD_TAG_DATA: cld80211 vendor subcommand data is present in
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* this attribute. It is a nested attribute with sub attributes of specified
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* vendor sub command.
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*
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* Any new message in future can be added as another attribute
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*/
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enum cld80211_attr {
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CLD80211_ATTR_VENDOR_DATA = 1,
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CLD80211_ATTR_DATA,
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CLD80211_ATTR_META_DATA,
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CLD80211_ATTR_CMD,
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CLD80211_ATTR_CMD_TAG_DATA,
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/* add new attributes above here */
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__CLD80211_ATTR_AFTER_LAST,
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CLD80211_ATTR_MAX = __CLD80211_ATTR_AFTER_LAST - 1
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};
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/**
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* enum cld80211_multicast_groups - List of multicast groups supported
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*
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* @CLD80211_MCGRP_SVC_MSGS: WLAN service message will be sent to this group.
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* Ex: Status ind messages
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* @CLD80211_MCGRP_HOST_LOGS: All logging related messages from driver will be
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* sent to this multicast group
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* @CLD80211_MCGRP_FW_LOGS: Firmware logging messages will be sent to this group
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* @CLD80211_MCGRP_PER_PKT_STATS: Messages related packet stats debugging infra
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* will be sent to this group
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* @CLD80211_MCGRP_DIAG_EVENTS: Driver/Firmware status logging diag events will
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* be sent to this group
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* @CLD80211_MCGRP_FATAL_EVENTS: Any fatal message generated in driver/firmware
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* will be sent to this group
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* @CLD80211_MCGRP_OEM_MSGS: All OEM message will be sent to this group
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* Ex: LOWI messages
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*/
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enum cld80211_multicast_groups {
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CLD80211_MCGRP_SVC_MSGS,
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CLD80211_MCGRP_HOST_LOGS,
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CLD80211_MCGRP_FW_LOGS,
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CLD80211_MCGRP_PER_PKT_STATS,
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CLD80211_MCGRP_DIAG_EVENTS,
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CLD80211_MCGRP_FATAL_EVENTS,
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CLD80211_MCGRP_OEM_MSGS,
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};
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/**
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* typedef cld80211_cb - Callback to be called when an nlmsg is received with
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* the registered cmd_id command from userspace
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* @data: Payload of the message to be sent to driver
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* @data_len: Length of the payload
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* @cb_ctx: callback context to be returned to driver when the callback
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* is called
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* @pid: process id of the sender
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*/
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typedef void (*cld80211_cb)(const void *data, int data_len,
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void *cb_ctx, int pid);
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/**
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* register_cld_cmd_cb() - Allows cld driver to register for commands with
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* callback
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* @cmd_id: Command to be registered. Valid range [1, CLD80211_MAX_COMMANDS]
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* @cb: Callback to be called when an nlmsg is received with cmd_id command
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* from userspace
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* @cb_ctx: context provided by driver; Send this as cb_ctx of func()
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* to driver
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*/
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int register_cld_cmd_cb(u8 cmd_id, cld80211_cb cb, void *cb_ctx);
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/**
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* deregister_cld_cmd_cb() - Allows cld driver to de-register the command it
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* has already registered
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* @cmd_id: Command to be deregistered.
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*/
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int deregister_cld_cmd_cb(u8 cmd_id);
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/**
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* cld80211_get_genl_family() - Returns current netlink family context
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*/
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struct genl_family *cld80211_get_genl_family(void);
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#endif /* _NET_CNSS_GENETLINK_H_ */
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