/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (c) 2017, 2019 The Linux Foundation. All rights reserved.
 */
#ifndef _CORESIGHT_BYTE_CNTR_H
#define _CORESIGHT_BYTE_CNTR_H
#include <linux/cdev.h>
#include <linux/amba/bus.h>
#include <linux/wait.h>
#include <linux/mutex.h>

struct byte_cntr {
	struct cdev		dev;
	struct class		*driver_class;
	bool			enable;
	bool			read_active;
	bool			sw_usb;
	uint32_t		byte_cntr_value;
	uint32_t		block_size;
	int			byte_cntr_irq;
	atomic_t		irq_cnt;
	atomic_t		usb_free_buf;
	wait_queue_head_t	wq;
	wait_queue_head_t	usb_wait_wq;
	struct workqueue_struct *usb_wq;
	struct qdss_request	*usb_req;
	struct work_struct	read_work;
	struct mutex		usb_bypass_lock;
	struct mutex		byte_cntr_lock;
	struct coresight_csr	*csr;
	unsigned long		offset;
};


extern void usb_bypass_notifier(void *priv, unsigned int event,
		struct qdss_request *d_req, struct usb_qdss_ch *ch);
extern void tmc_etr_byte_cntr_start(struct byte_cntr *byte_cntr_data);
extern void tmc_etr_byte_cntr_stop(struct byte_cntr *byte_cntr_data);
extern void usb_bypass_stop(struct byte_cntr *byte_cntr_data);
#endif