/* SPDX-License-Identifier: GPL-2.0-or-later *//* I2C message transfer tracepoints * * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) */#undef TRACE_SYSTEM#define TRACE_SYSTEM i2c #if !defined(_TRACE_I2C_H) || defined(TRACE_HEADER_MULTI_READ)#define _TRACE_I2C_H #include <linux/i2c.h>#include <linux/tracepoint.h> /* * drivers/i2c/i2c-core-base.c */extern int i2c_transfer_trace_reg(void);extern void i2c_transfer_trace_unreg(void); /* * __i2c_transfer() write request */TRACE_EVENT_FN(i2c_write,	       TP_PROTO(const struct i2c_adapter *adap, const struct i2c_msg *msg,			int num),	       TP_ARGS(adap, msg, num),	       TP_STRUCT__entry(		       __field(int,	adapter_nr		)		       __field(__u16,	msg_nr			)		       __field(__u16,	addr			)		       __field(__u16,	flags			)		       __field(__u16,	len			)		       __dynamic_array(__u8, buf, msg->len)	),	       TP_fast_assign(		       __entry->adapter_nr = adap->nr;		       __entry->msg_nr = num;		       __entry->addr = msg->addr;		       __entry->flags = msg->flags;		       __entry->len = msg->len;		       memcpy(__get_dynamic_array(buf), msg->buf, msg->len);			      ),	       TP_printk("i2c-%d #%u a=%03x f=%04x l=%u [%*phD]",			 __entry->adapter_nr,			 __entry->msg_nr,			 __entry->addr,			 __entry->flags,			 __entry->len,			 __entry->len, __get_dynamic_array(buf)			 ),	       i2c_transfer_trace_reg,	       i2c_transfer_trace_unreg); /* * __i2c_transfer() read request */TRACE_EVENT_FN(i2c_read,	       TP_PROTO(const struct i2c_adapter *adap, const struct i2c_msg *msg,			int num),	       TP_ARGS(adap, msg, num),	       TP_STRUCT__entry(		       __field(int,	adapter_nr		)		       __field(__u16,	msg_nr			)		       __field(__u16,	addr			)		       __field(__u16,	flags			)		       __field(__u16,	len			)				),	       TP_fast_assign(		       __entry->adapter_nr = adap->nr;		       __entry->msg_nr = num;		       __entry->addr = msg->addr;		       __entry->flags = msg->flags;		       __entry->len = msg->len;			      ),	       TP_printk("i2c-%d #%u a=%03x f=%04x l=%u",			 __entry->adapter_nr,			 __entry->msg_nr,			 __entry->addr,			 __entry->flags,			 __entry->len			 ),	       i2c_transfer_trace_reg,		       i2c_transfer_trace_unreg); /* * __i2c_transfer() read reply */TRACE_EVENT_FN(i2c_reply,	       TP_PROTO(const struct i2c_adapter *adap, const struct i2c_msg *msg,			int num),	       TP_ARGS(adap, msg, num),	       TP_STRUCT__entry(		       __field(int,	adapter_nr		)		       __field(__u16,	msg_nr			)		       __field(__u16,	addr			)		       __field(__u16,	flags			)		       __field(__u16,	len			)		       __dynamic_array(__u8, buf, msg->len)	),	       TP_fast_assign(		       __entry->adapter_nr = adap->nr;		       __entry->msg_nr = num;		       __entry->addr = msg->addr;		       __entry->flags = msg->flags;		       __entry->len = msg->len;		       memcpy(__get_dynamic_array(buf), msg->buf, msg->len);			      ),	       TP_printk("i2c-%d #%u a=%03x f=%04x l=%u [%*phD]",			 __entry->adapter_nr,			 __entry->msg_nr,			 __entry->addr,			 __entry->flags,			 __entry->len,			 __entry->len, __get_dynamic_array(buf)			 ),	       i2c_transfer_trace_reg,	       i2c_transfer_trace_unreg); /* * __i2c_transfer() result */TRACE_EVENT_FN(i2c_result,	       TP_PROTO(const struct i2c_adapter *adap, int num, int ret),	       TP_ARGS(adap, num, ret),	       TP_STRUCT__entry(		       __field(int,	adapter_nr		)		       __field(__u16,	nr_msgs			)		       __field(__s16,	ret			)				),	       TP_fast_assign(		       __entry->adapter_nr = adap->nr;		       __entry->nr_msgs = num;		       __entry->ret = ret;			      ),	       TP_printk("i2c-%d n=%u ret=%d",			 __entry->adapter_nr,			 __entry->nr_msgs,			 __entry->ret			 ),	       i2c_transfer_trace_reg,	       i2c_transfer_trace_unreg); #endif /* _TRACE_I2C_H */ /* This part must be outside protection */#include <trace/define_trace.h>