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/*
* This file is part of the UWB stack for linux.
*
* Copyright (c) 2021 Qorvo US, Inc.
*
* This software is provided under the GNU General Public License, version 2
* (GPLv2), as well as under a Qorvo commercial license.
*
* You may choose to use this software under the terms of the GPLv2 License,
* version 2 ("GPLv2"), as published by the Free Software Foundation.
* You should have received a copy of the GPLv2 along with this program. If
* not, see <http://www.gnu.org/licenses/>.
*
* This program is distributed under the GPLv2 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 GPLv2 for more
* details.
*
* If you cannot meet the requirements of the GPLv2, you may not use this
* software for any purpose without first obtaining a commercial license from
* Qorvo. Please contact Qorvo to inquire about licensing terms.
*/
#ifndef __DW3000_NFCC_COEX_MSG_H
#define __DW3000_NFCC_COEX_MSG_H
#include <linux/module.h>
#include "dw3000_nfcc_coex.h"
#include "dw3000.h"
#define TLV_MAX_NB_SLOTS 4
#define DW3000_NFCC_COEX_SESSION_ID_DEFAULT 0
/**
* enum dw3000_nfcc_coex_tlv_type - TLVs types.
*
* @DW3000_NFCC_COEX_TLV_TYPE_UNSPEC: Invalid command.
* @DW3000_NFCC_COEX_TLV_TYPE_SESSION_TIME0:
* Indicate start of UWB session in RCTU time unit.
* @DW3000_NFCC_COEX_TLV_TYPE_SLOT_LIST:
* Indicate the requested next time slots.
* @DW3000_NFCC_COEX_TLV_TYPE_TLV_UWBCNT_OFFS:
* Indicate the UWB clock offset in V1 protocol.
* @DW3000_NFCC_COEX_TLV_TYPE_ERROR:
* Indicate error condition.
* @DW3000_NFCC_COEX_TLV_TYPE_SLOT_LIST_UUS:
* Indicate the UWB clock offset in V2 protocol.
* @DW3000_NFCC_COEX_TLV_TYPE_STOP_SESSION:
* Indicate the stop session in V3 protocol.
*/
enum dw3000_nfcc_coex_tlv_type {
DW3000_NFCC_COEX_TLV_TYPE_UNSPEC,
DW3000_NFCC_COEX_TLV_TYPE_SESSION_TIME0,
DW3000_NFCC_COEX_TLV_TYPE_SLOT_LIST,
DW3000_NFCC_COEX_TLV_TYPE_TLV_UWBCNT_OFFS,
DW3000_NFCC_COEX_TLV_TYPE_ERROR,
DW3000_NFCC_COEX_TLV_TYPE_SLOT_LIST_UUS,
DW3000_NFCC_COEX_TLV_TYPE_STOP_SESSION
};
/**
* struct dw3000_nfcc_coex_tlv_slot - TLV slot definition.
*/
struct dw3000_nfcc_coex_tlv_slot {
/**
* @t_start_uus: Start date in 65536*RCTU (close to usec unit).
*/
u32 t_start_uus;
/**
* @t_end_uus: End date in 65536*RCTU (close to usec unit).
*/
u32 t_end_uus;
};
/**
* struct dw3000_nfcc_coex_tlv_slot_list - TLV slots.
*/
struct dw3000_nfcc_coex_tlv_slot_list {
/**
* @nb_slots: Number of slots used.
*/
u8 nb_slots;
/**
* @slots: array of start/end session time.
*/
struct dw3000_nfcc_coex_tlv_slot slots[TLV_MAX_NB_SLOTS];
} __attribute__((packed));
void dw3000_nfcc_coex_header_put(struct dw3000 *dw,
struct dw3000_nfcc_coex_buffer *buffer);
int dw3000_nfcc_coex_message_send(struct dw3000 *dw);
int dw3000_nfcc_coex_message_check(
struct dw3000 *dw, const struct dw3000_nfcc_coex_buffer *buffer,
struct dw3000_nfcc_coex_rx_msg_info *rx_msg_info);
#endif /* __DW3000_NFCC_COEX_MSG_H */
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