Contributors: 2
Author Tokens Token Proportion Commits Commit Proportion
Johannes Berg 211 91.74% 1 50.00%
David Spinadel 19 8.26% 1 50.00%
Total 230 2 


/******************************************************************************
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
 * Copyright(c) 2018        Intel Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License 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.
 *
 * Contact Information:
 *  Intel Linux Wireless <linuxwifi@intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
 * Copyright(c) 2018        Intel Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 *****************************************************************************/

#ifndef __iwl_fw_api_tdls_h__
#define __iwl_fw_api_tdls_h__

#include "fw/api/tx.h"
#include "fw/api/phy-ctxt.h"

#define IWL_MVM_TDLS_STA_COUNT	4

/* Type of TDLS request */
enum iwl_tdls_channel_switch_type {
	TDLS_SEND_CHAN_SW_REQ = 0,
	TDLS_SEND_CHAN_SW_RESP_AND_MOVE_CH,
	TDLS_MOVE_CH,
}; /* TDLS_STA_CHANNEL_SWITCH_CMD_TYPE_API_E_VER_1 */

/**
 * struct iwl_tdls_channel_switch_timing - Switch timing in TDLS channel-switch
 * @frame_timestamp: GP2 timestamp of channel-switch request/response packet
 *	received from peer
 * @max_offchan_duration: What amount of microseconds out of a DTIM is given
 *	to the TDLS off-channel communication. For instance if the DTIM is
 *	200TU and the TDLS peer is to be given 25% of the time, the value
 *	given will be 50TU, or 50 * 1024 if translated into microseconds.
 * @switch_time: switch time the peer sent in its channel switch timing IE
 * @switch_timeout: switch timeout the peer sent in its channel switch timing IE
 */
struct iwl_tdls_channel_switch_timing {
	__le32 frame_timestamp; /* GP2 time of peer packet Rx */
	__le32 max_offchan_duration; /* given in micro-seconds */
	__le32 switch_time; /* given in micro-seconds */
	__le32 switch_timeout; /* given in micro-seconds */
} __packed; /* TDLS_STA_CHANNEL_SWITCH_TIMING_DATA_API_S_VER_1 */

#define IWL_TDLS_CH_SW_FRAME_MAX_SIZE 200

/**
 * struct iwl_tdls_channel_switch_frame - TDLS channel switch frame template
 *
 * A template representing a TDLS channel-switch request or response frame
 *
 * @switch_time_offset: offset to the channel switch timing IE in the template
 * @tx_cmd: Tx parameters for the frame
 * @data: frame data
 */
struct iwl_tdls_channel_switch_frame {
	__le32 switch_time_offset;
	struct iwl_tx_cmd tx_cmd;
	u8 data[IWL_TDLS_CH_SW_FRAME_MAX_SIZE];
} __packed; /* TDLS_STA_CHANNEL_SWITCH_FRAME_API_S_VER_1 */

/**
 * struct iwl_tdls_channel_switch_cmd_tail - tail of iwl_tdls_channel_switch_cmd
 *
 * @timing: timing related data for command
 * @frame: channel-switch request/response template, depending to switch_type
 */
struct iwl_tdls_channel_switch_cmd_tail {
	struct iwl_tdls_channel_switch_timing timing;
	struct iwl_tdls_channel_switch_frame frame;
} __packed;

/**
 * struct iwl_tdls_channel_switch_cmd - TDLS channel switch command
 *
 * The command is sent to initiate a channel switch and also in response to
 * incoming TDLS channel-switch request/response packets from remote peers.
 *
 * @switch_type: see &enum iwl_tdls_channel_switch_type
 * @peer_sta_id: station id of TDLS peer
 * @ci: channel we switch to
 * @tail: command tail
 */
struct iwl_tdls_channel_switch_cmd {
	u8 switch_type;
	__le32 peer_sta_id;
	struct iwl_fw_channel_info ci;
	struct iwl_tdls_channel_switch_cmd_tail tail;
} __packed; /* TDLS_STA_CHANNEL_SWITCH_CMD_API_S_VER_1 */

/**
 * struct iwl_tdls_channel_switch_notif - TDLS channel switch start notification
 *
 * @status: non-zero on success
 * @offchannel_duration: duration given in microseconds
 * @sta_id: peer currently performing the channel-switch with
 */
struct iwl_tdls_channel_switch_notif {
	__le32 status;
	__le32 offchannel_duration;
	__le32 sta_id;
} __packed; /* TDLS_STA_CHANNEL_SWITCH_NTFY_API_S_VER_1 */

/**
 * struct iwl_tdls_sta_info - TDLS station info
 *
 * @sta_id: station id of the TDLS peer
 * @tx_to_peer_tid: TID reserved vs. the peer for FW based Tx
 * @tx_to_peer_ssn: initial SSN the FW should use for Tx on its TID vs the peer
 * @is_initiator: 1 if the peer is the TDLS link initiator, 0 otherwise
 */
struct iwl_tdls_sta_info {
	u8 sta_id;
	u8 tx_to_peer_tid;
	__le16 tx_to_peer_ssn;
	__le32 is_initiator;
} __packed; /* TDLS_STA_INFO_VER_1 */

/**
 * struct iwl_tdls_config_cmd - TDLS basic config command
 *
 * @id_and_color: MAC id and color being configured
 * @tdls_peer_count: amount of currently connected TDLS peers
 * @tx_to_ap_tid: TID reverved vs. the AP for FW based Tx
 * @tx_to_ap_ssn: initial SSN the FW should use for Tx on its TID vs. the AP
 * @sta_info: per-station info. Only the first tdls_peer_count entries are set
 * @pti_req_data_offset: offset of network-level data for the PTI template
 * @pti_req_tx_cmd: Tx parameters for PTI request template
 * @pti_req_template: PTI request template data
 */
struct iwl_tdls_config_cmd {
	__le32 id_and_color; /* mac id and color */
	u8 tdls_peer_count;
	u8 tx_to_ap_tid;
	__le16 tx_to_ap_ssn;
	struct iwl_tdls_sta_info sta_info[IWL_MVM_TDLS_STA_COUNT];

	__le32 pti_req_data_offset;
	struct iwl_tx_cmd pti_req_tx_cmd;
	u8 pti_req_template[0];
} __packed; /* TDLS_CONFIG_CMD_API_S_VER_1 */

/**
 * struct iwl_tdls_config_sta_info_res - TDLS per-station config information
 *
 * @sta_id: station id of the TDLS peer
 * @tx_to_peer_last_seq: last sequence number used by FW during FW-based Tx to
 *	the peer
 */
struct iwl_tdls_config_sta_info_res {
	__le16 sta_id;
	__le16 tx_to_peer_last_seq;
} __packed; /* TDLS_STA_INFO_RSP_VER_1 */

/**
 * struct iwl_tdls_config_res - TDLS config information from FW
 *
 * @tx_to_ap_last_seq: last sequence number used by FW during FW-based Tx to AP
 * @sta_info: per-station TDLS config information
 */
struct iwl_tdls_config_res {
	__le32 tx_to_ap_last_seq;
	struct iwl_tdls_config_sta_info_res sta_info[IWL_MVM_TDLS_STA_COUNT];
} __packed; /* TDLS_CONFIG_RSP_API_S_VER_1 */

#endif /* __iwl_fw_api_tdls_h__ */