mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-27 13:05:03 +08:00
b4d0d230cc
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public licence as published by the free software foundation either version 2 of the licence or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 114 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170857.552531963@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
147 lines
4.0 KiB
C
147 lines
4.0 KiB
C
/* 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>
|