/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * ITP interface for BES2600
 *
 * Copyright (c) 2022, Bestechnic (Beijing) Co., Ltd.
 *
 */

#ifndef BES2600_ITP_H_INCLUDED
#define BES2600_ITP_H_INCLUDED

struct cw200_common;
struct wsm_tx_confirm;
struct dentry;

#ifdef CONFIG_BES2600_ITP

/*extern*/ struct ieee80211_channel;

#define TEST_MODE_NO_TEST	(0)
#define TEST_MODE_RX_TEST	(1)
#define TEST_MODE_TX_TEST	(2)

#define itp_printk(...) printk(__VA_ARGS__)
#define ITP_DEFAULT_DA_ADDR {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}
#define ITP_MIN_DATA_SIZE 6
#define ITP_MAX_DATA_SIZE 1600
#define ITP_TIME_THRES_US 10000
#define ITP_US_TO_MS(x) ((x)/1000)
#define ITP_MS_TO_US(x) ((x)*1000)
#if ((ITP_US_TO_MS(ITP_TIME_THRES_US))*HZ/1000) < 1
#warning not able to achieve non-busywaiting ITP_TIME_THRES_US\
precision with current HZ value !
#endif
#define ITP_BUF_SIZE 255


enum bes2600_itp_data_modes {
	ITP_DATA_ZEROS,
	ITP_DATA_ONES,
	ITP_DATA_ZERONES,
	ITP_DATA_RANDOM,
	ITP_DATA_MAX_MODE,
};

enum bes2600_itp_version_type {
	ITP_CHIP_ID,
	ITP_FW_VER,
};

enum bes2600_itp_preamble_type {
	ITP_PREAMBLE_LONG,
	ITP_PREAMBLE_SHORT,
	ITP_PREAMBLE_OFDM,
	ITP_PREAMBLE_MIXED,
	ITP_PREAMBLE_GREENFIELD,
	ITP_PREAMBLE_MAX,
};


struct bes2600_itp {
	struct bes2600_common	*priv;
	atomic_t		open_count;
	atomic_t		awaiting_confirm;
	struct sk_buff_head	log_queue;
	wait_queue_head_t	read_wait;
	wait_queue_head_t	write_wait;
	wait_queue_head_t	close_wait;
	struct ieee80211_channel *saved_channel;
	atomic_t		stop_tx;
	struct delayed_work	tx_work;
	struct delayed_work	tx_finish;
	spinlock_t		tx_lock;
	struct timespec		last_sent;
	atomic_t		test_mode;
	int			rx_cnt;
	long			rx_rssi;
	int			rx_rssi_max;
	int			rx_rssi_min;
	unsigned		band;
	unsigned		ch;
	unsigned		rate;
	unsigned		preamble;
	unsigned int		number;
	unsigned		data_mode;
	int			interval_us;
	int			power;
	u8			*data;
	int			hdr_len;
	int			data_len;
	int			id;
};

int bes2600_itp_init(struct bes2600_common *priv);
void bes2600_itp_release(struct bes2600_common *priv);

bool bes2600_is_itp(struct bes2600_common *priv);
bool bes2600_itp_rxed(struct bes2600_common *priv, struct sk_buff *skb);
void bes2600_itp_wake_up_tx(struct bes2600_common *priv);
int bes2600_itp_get_tx(struct bes2600_common *priv, u8 **data,
		size_t *tx_len, int *burst);
bool bes2600_itp_tx_running(struct bes2600_common *priv);

#else /* CONFIG_BES2600_ITP */

static inline int
bes2600_itp_init(struct bes2600_common *priv)
{
	return 0;
}

static inline void bes2600_itp_release(struct bes2600_common *priv)
{
}

static inline bool bes2600_is_itp(struct bes2600_common *priv)
{
	return false;
}

static inline bool bes2600_itp_rxed(struct bes2600_common *priv,
		struct sk_buff *skb)
{
	return false;
}


static inline void bes2600_itp_consume_txed(struct bes2600_common *priv)
{
}

static inline void bes2600_itp_wake_up_tx(struct bes2600_common *priv)
{
}

static inline int bes2600_itp_get_tx(struct bes2600_common *priv, u8 **data,
		size_t *tx_len, int *burst)
{
	return 0;
}

static inline bool bes2600_itp_tx_running(struct bes2600_common *priv)
{
	return false;
}

#endif /* CONFIG_BES2600_ITP */

#endif /* BES2600_ITP_H_INCLUDED */