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/******************************************************************************
*
* 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,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
#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__ */
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