drivers/usb/musb/musb_trace.h

/*
 * musb_trace.h - MUSB Controller Trace Support
 *
 * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com
 *
 * Author: Bin Liu <b-liu@ti.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2  of
 * the 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.
 */

#undef TRACE_SYSTEM
#define TRACE_SYSTEM musb

#if !defined(__MUSB_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define __MUSB_TRACE_H

#include <linux/types.h>
#include <linux/tracepoint.h>
#include "musb_core.h"

#define MUSB_MSG_MAX   500

TRACE_EVENT(musb_log,
	TP_PROTO(struct musb *musb, struct va_format *vaf),
	TP_ARGS(musb, vaf),
	TP_STRUCT__entry(
		__string(name, dev_name(musb->controller))
		__dynamic_array(char, msg, MUSB_MSG_MAX)
	),
	TP_fast_assign(
		__assign_str(name, dev_name(musb->controller));
		vsnprintf(__get_str(msg), MUSB_MSG_MAX, vaf->fmt, *vaf->va);
	),
	TP_printk("%s: %s", __get_str(name), __get_str(msg))
);

DECLARE_EVENT_CLASS(musb_regb,
	TP_PROTO(void *caller, const void *addr, unsigned int offset, u8 data),
	TP_ARGS(caller, addr, offset, data),
	TP_STRUCT__entry(
		__field(void *, caller)
		__field(const void *, addr)
		__field(unsigned int, offset)
		__field(u8, data)
	),
	TP_fast_assign(
		__entry->caller = caller;
		__entry->addr = addr;
		__entry->offset = offset;
		__entry->data = data;
	),
	TP_printk("%pS: %p + %04x: %02x",
		__entry->caller, __entry->addr, __entry->offset, __entry->data)
);

DEFINE_EVENT(musb_regb, musb_readb,
	TP_PROTO(void *caller, const void *addr, unsigned int offset, u8 data),
	TP_ARGS(caller, addr, offset, data)
);

DEFINE_EVENT(musb_regb, musb_writeb,
	TP_PROTO(void *caller, const void *addr, unsigned int offset, u8 data),
	TP_ARGS(caller, addr, offset, data)
);

DECLARE_EVENT_CLASS(musb_regw,
	TP_PROTO(void *caller, const void *addr, unsigned int offset, u16 data),
	TP_ARGS(caller, addr, offset, data),
	TP_STRUCT__entry(
		__field(void *, caller)
		__field(const void *, addr)
		__field(unsigned int, offset)
		__field(u16, data)
	),
	TP_fast_assign(
		__entry->caller = caller;
		__entry->addr = addr;
		__entry->offset = offset;
		__entry->data = data;
	),
	TP_printk("%pS: %p + %04x: %04x",
		__entry->caller, __entry->addr, __entry->offset, __entry->data)
);

DEFINE_EVENT(musb_regw, musb_readw,
	TP_PROTO(void *caller, const void *addr, unsigned int offset, u16 data),
	TP_ARGS(caller, addr, offset, data)
);

DEFINE_EVENT(musb_regw, musb_writew,
	TP_PROTO(void *caller, const void *addr, unsigned int offset, u16 data),
	TP_ARGS(caller, addr, offset, data)
);

DECLARE_EVENT_CLASS(musb_regl,
	TP_PROTO(void *caller, const void *addr, unsigned int offset, u32 data),
	TP_ARGS(caller, addr, offset, data),
	TP_STRUCT__entry(
		__field(void *, caller)
		__field(const void *, addr)
		__field(unsigned int, offset)
		__field(u32, data)
	),
	TP_fast_assign(
		__entry->caller = caller;
		__entry->addr = addr;
		__entry->offset = offset;
		__entry->data = data;
	),
	TP_printk("%pS: %p + %04x: %08x",
		__entry->caller, __entry->addr, __entry->offset, __entry->data)
);

DEFINE_EVENT(musb_regl, musb_readl,
	TP_PROTO(void *caller, const void *addr, unsigned int offset, u32 data),
	TP_ARGS(caller, addr, offset, data)
);

DEFINE_EVENT(musb_regl, musb_writel,
	TP_PROTO(void *caller, const void *addr, unsigned int offset, u32 data),
	TP_ARGS(caller, addr, offset, data)
);

TRACE_EVENT(musb_isr,
	TP_PROTO(struct musb *musb),
	TP_ARGS(musb),
	TP_STRUCT__entry(
		__string(name, dev_name(musb->controller))
		__field(u8, int_usb)
		__field(u16, int_tx)
		__field(u16, int_rx)
	),
	TP_fast_assign(
		__assign_str(name, dev_name(musb->controller));
		__entry->int_usb = musb->int_usb;
		__entry->int_tx = musb->int_tx;
		__entry->int_rx = musb->int_rx;
	),
	TP_printk("%s: usb %02x, tx %04x, rx %04x",
		__get_str(name), __entry->int_usb,
		__entry->int_tx, __entry->int_rx
	)
);

#endif /* __MUSB_TRACE_H */

/* this part has to be here */

#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .

#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE musb_trace

#include <trace/define_trace.h>