/* SPDX-License-Identifier: GPL-2.0
 * Copyright (c) 2019, Vladimir Oltean <olteanv@gmail.com>
 */



#ifndef _NET_DSA_SJA1105_H
#define _NET_DSA_SJA1105_H

#include <linux/skbuff.h>
#include <linux/etherdevice.h>
#include <linux/dsa/8021q.h>
#include <net/dsa.h>

#define ETH_P_SJA1105				ETH_P_DSA_8021Q
#define ETH_P_SJA1105_META			0x0008
#define ETH_P_SJA1110				0xdadc

#define SJA1105_DEFAULT_VLAN			(VLAN_N_VID - 1)


#define SJA1105_LINKLOCAL_FILTER_A		0x0180C2000000ull
#define SJA1105_LINKLOCAL_FILTER_A_MASK		0xFFFFFF000000ull

#define SJA1105_LINKLOCAL_FILTER_B		0x011B19000000ull
#define SJA1105_LINKLOCAL_FILTER_B_MASK		0xFFFFFF000000ull


#define SJA1105_META_SMAC			0x222222222222ull
#define SJA1105_META_DMAC			0x0180C200000Eull

#define SJA1105_HWTS_RX_EN			0


struct sja1105_tagger_data {
	struct sk_buff *stampable_skb;
	
	spinlock_t meta_lock;
	unsigned long state;
	u8 ts_id;
	
	struct sk_buff_head skb_txtstamp_queue;
};

struct sja1105_skb_cb {
	struct sk_buff *clone;
	u64 tstamp;
	
	u8 ts_id;
};

#define SJA1105_SKB_CB(skb) \
	((struct sja1105_skb_cb *)((skb)->cb))

struct sja1105_port {
	struct kthread_worker *xmit_worker;
	struct kthread_work xmit_work;
	struct sk_buff_head xmit_queue;
	struct sja1105_tagger_data *data;
	struct dsa_port *dp;
	bool hwts_tx_en;
};


#define SJA1105_TICK_NS			8

static inline s64 ns_to_sja1105_ticks(s64 ns)
{
	return ns / SJA1105_TICK_NS;
}

static inline s64 sja1105_ticks_to_ns(s64 ticks)
{
	return ticks * SJA1105_TICK_NS;
}

static inline bool dsa_port_is_sja1105(struct dsa_port *dp)
{
	return true;
}

#endif 
