mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 11:19:37 +00:00
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>
245 lines
7.3 KiB
C
245 lines
7.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/* SMBUS 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 smbus
|
|
|
|
#if !defined(_TRACE_SMBUS_H) || defined(TRACE_HEADER_MULTI_READ)
|
|
#define _TRACE_SMBUS_H
|
|
|
|
#include <linux/i2c.h>
|
|
#include <linux/tracepoint.h>
|
|
|
|
/*
|
|
* drivers/i2c/i2c-core-smbus.c
|
|
*/
|
|
|
|
/*
|
|
* i2c_smbus_xfer() write data or procedure call request
|
|
*/
|
|
TRACE_EVENT_CONDITION(smbus_write,
|
|
TP_PROTO(const struct i2c_adapter *adap,
|
|
u16 addr, unsigned short flags,
|
|
char read_write, u8 command, int protocol,
|
|
const union i2c_smbus_data *data),
|
|
TP_ARGS(adap, addr, flags, read_write, command, protocol, data),
|
|
TP_CONDITION(read_write == I2C_SMBUS_WRITE ||
|
|
protocol == I2C_SMBUS_PROC_CALL ||
|
|
protocol == I2C_SMBUS_BLOCK_PROC_CALL),
|
|
TP_STRUCT__entry(
|
|
__field(int, adapter_nr )
|
|
__field(__u16, addr )
|
|
__field(__u16, flags )
|
|
__field(__u8, command )
|
|
__field(__u8, len )
|
|
__field(__u32, protocol )
|
|
__array(__u8, buf, I2C_SMBUS_BLOCK_MAX + 2) ),
|
|
TP_fast_assign(
|
|
__entry->adapter_nr = adap->nr;
|
|
__entry->addr = addr;
|
|
__entry->flags = flags;
|
|
__entry->command = command;
|
|
__entry->protocol = protocol;
|
|
|
|
switch (protocol) {
|
|
case I2C_SMBUS_BYTE_DATA:
|
|
__entry->len = 1;
|
|
goto copy;
|
|
case I2C_SMBUS_WORD_DATA:
|
|
case I2C_SMBUS_PROC_CALL:
|
|
__entry->len = 2;
|
|
goto copy;
|
|
case I2C_SMBUS_BLOCK_DATA:
|
|
case I2C_SMBUS_BLOCK_PROC_CALL:
|
|
case I2C_SMBUS_I2C_BLOCK_DATA:
|
|
__entry->len = data->block[0] + 1;
|
|
copy:
|
|
memcpy(__entry->buf, data->block, __entry->len);
|
|
break;
|
|
case I2C_SMBUS_QUICK:
|
|
case I2C_SMBUS_BYTE:
|
|
case I2C_SMBUS_I2C_BLOCK_BROKEN:
|
|
default:
|
|
__entry->len = 0;
|
|
}
|
|
),
|
|
TP_printk("i2c-%d a=%03x f=%04x c=%x %s l=%u [%*phD]",
|
|
__entry->adapter_nr,
|
|
__entry->addr,
|
|
__entry->flags,
|
|
__entry->command,
|
|
__print_symbolic(__entry->protocol,
|
|
{ I2C_SMBUS_QUICK, "QUICK" },
|
|
{ I2C_SMBUS_BYTE, "BYTE" },
|
|
{ I2C_SMBUS_BYTE_DATA, "BYTE_DATA" },
|
|
{ I2C_SMBUS_WORD_DATA, "WORD_DATA" },
|
|
{ I2C_SMBUS_PROC_CALL, "PROC_CALL" },
|
|
{ I2C_SMBUS_BLOCK_DATA, "BLOCK_DATA" },
|
|
{ I2C_SMBUS_I2C_BLOCK_BROKEN, "I2C_BLOCK_BROKEN" },
|
|
{ I2C_SMBUS_BLOCK_PROC_CALL, "BLOCK_PROC_CALL" },
|
|
{ I2C_SMBUS_I2C_BLOCK_DATA, "I2C_BLOCK_DATA" }),
|
|
__entry->len,
|
|
__entry->len, __entry->buf
|
|
));
|
|
|
|
/*
|
|
* i2c_smbus_xfer() read data request
|
|
*/
|
|
TRACE_EVENT_CONDITION(smbus_read,
|
|
TP_PROTO(const struct i2c_adapter *adap,
|
|
u16 addr, unsigned short flags,
|
|
char read_write, u8 command, int protocol),
|
|
TP_ARGS(adap, addr, flags, read_write, command, protocol),
|
|
TP_CONDITION(!(read_write == I2C_SMBUS_WRITE ||
|
|
protocol == I2C_SMBUS_PROC_CALL ||
|
|
protocol == I2C_SMBUS_BLOCK_PROC_CALL)),
|
|
TP_STRUCT__entry(
|
|
__field(int, adapter_nr )
|
|
__field(__u16, flags )
|
|
__field(__u16, addr )
|
|
__field(__u8, command )
|
|
__field(__u32, protocol )
|
|
__array(__u8, buf, I2C_SMBUS_BLOCK_MAX + 2) ),
|
|
TP_fast_assign(
|
|
__entry->adapter_nr = adap->nr;
|
|
__entry->addr = addr;
|
|
__entry->flags = flags;
|
|
__entry->command = command;
|
|
__entry->protocol = protocol;
|
|
),
|
|
TP_printk("i2c-%d a=%03x f=%04x c=%x %s",
|
|
__entry->adapter_nr,
|
|
__entry->addr,
|
|
__entry->flags,
|
|
__entry->command,
|
|
__print_symbolic(__entry->protocol,
|
|
{ I2C_SMBUS_QUICK, "QUICK" },
|
|
{ I2C_SMBUS_BYTE, "BYTE" },
|
|
{ I2C_SMBUS_BYTE_DATA, "BYTE_DATA" },
|
|
{ I2C_SMBUS_WORD_DATA, "WORD_DATA" },
|
|
{ I2C_SMBUS_PROC_CALL, "PROC_CALL" },
|
|
{ I2C_SMBUS_BLOCK_DATA, "BLOCK_DATA" },
|
|
{ I2C_SMBUS_I2C_BLOCK_BROKEN, "I2C_BLOCK_BROKEN" },
|
|
{ I2C_SMBUS_BLOCK_PROC_CALL, "BLOCK_PROC_CALL" },
|
|
{ I2C_SMBUS_I2C_BLOCK_DATA, "I2C_BLOCK_DATA" })
|
|
));
|
|
|
|
/*
|
|
* i2c_smbus_xfer() read data or procedure call reply
|
|
*/
|
|
TRACE_EVENT_CONDITION(smbus_reply,
|
|
TP_PROTO(const struct i2c_adapter *adap,
|
|
u16 addr, unsigned short flags,
|
|
char read_write, u8 command, int protocol,
|
|
const union i2c_smbus_data *data, int res),
|
|
TP_ARGS(adap, addr, flags, read_write, command, protocol, data, res),
|
|
TP_CONDITION(res >= 0 && read_write == I2C_SMBUS_READ),
|
|
TP_STRUCT__entry(
|
|
__field(int, adapter_nr )
|
|
__field(__u16, addr )
|
|
__field(__u16, flags )
|
|
__field(__u8, command )
|
|
__field(__u8, len )
|
|
__field(__u32, protocol )
|
|
__array(__u8, buf, I2C_SMBUS_BLOCK_MAX + 2) ),
|
|
TP_fast_assign(
|
|
__entry->adapter_nr = adap->nr;
|
|
__entry->addr = addr;
|
|
__entry->flags = flags;
|
|
__entry->command = command;
|
|
__entry->protocol = protocol;
|
|
|
|
switch (protocol) {
|
|
case I2C_SMBUS_BYTE:
|
|
case I2C_SMBUS_BYTE_DATA:
|
|
__entry->len = 1;
|
|
goto copy;
|
|
case I2C_SMBUS_WORD_DATA:
|
|
case I2C_SMBUS_PROC_CALL:
|
|
__entry->len = 2;
|
|
goto copy;
|
|
case I2C_SMBUS_BLOCK_DATA:
|
|
case I2C_SMBUS_BLOCK_PROC_CALL:
|
|
case I2C_SMBUS_I2C_BLOCK_DATA:
|
|
__entry->len = data->block[0] + 1;
|
|
copy:
|
|
memcpy(__entry->buf, data->block, __entry->len);
|
|
break;
|
|
case I2C_SMBUS_QUICK:
|
|
case I2C_SMBUS_I2C_BLOCK_BROKEN:
|
|
default:
|
|
__entry->len = 0;
|
|
}
|
|
),
|
|
TP_printk("i2c-%d a=%03x f=%04x c=%x %s l=%u [%*phD]",
|
|
__entry->adapter_nr,
|
|
__entry->addr,
|
|
__entry->flags,
|
|
__entry->command,
|
|
__print_symbolic(__entry->protocol,
|
|
{ I2C_SMBUS_QUICK, "QUICK" },
|
|
{ I2C_SMBUS_BYTE, "BYTE" },
|
|
{ I2C_SMBUS_BYTE_DATA, "BYTE_DATA" },
|
|
{ I2C_SMBUS_WORD_DATA, "WORD_DATA" },
|
|
{ I2C_SMBUS_PROC_CALL, "PROC_CALL" },
|
|
{ I2C_SMBUS_BLOCK_DATA, "BLOCK_DATA" },
|
|
{ I2C_SMBUS_I2C_BLOCK_BROKEN, "I2C_BLOCK_BROKEN" },
|
|
{ I2C_SMBUS_BLOCK_PROC_CALL, "BLOCK_PROC_CALL" },
|
|
{ I2C_SMBUS_I2C_BLOCK_DATA, "I2C_BLOCK_DATA" }),
|
|
__entry->len,
|
|
__entry->len, __entry->buf
|
|
));
|
|
|
|
/*
|
|
* i2c_smbus_xfer() result
|
|
*/
|
|
TRACE_EVENT(smbus_result,
|
|
TP_PROTO(const struct i2c_adapter *adap,
|
|
u16 addr, unsigned short flags,
|
|
char read_write, u8 command, int protocol,
|
|
int res),
|
|
TP_ARGS(adap, addr, flags, read_write, command, protocol, res),
|
|
TP_STRUCT__entry(
|
|
__field(int, adapter_nr )
|
|
__field(__u16, addr )
|
|
__field(__u16, flags )
|
|
__field(__u8, read_write )
|
|
__field(__u8, command )
|
|
__field(__s16, res )
|
|
__field(__u32, protocol )
|
|
),
|
|
TP_fast_assign(
|
|
__entry->adapter_nr = adap->nr;
|
|
__entry->addr = addr;
|
|
__entry->flags = flags;
|
|
__entry->read_write = read_write;
|
|
__entry->command = command;
|
|
__entry->protocol = protocol;
|
|
__entry->res = res;
|
|
),
|
|
TP_printk("i2c-%d a=%03x f=%04x c=%x %s %s res=%d",
|
|
__entry->adapter_nr,
|
|
__entry->addr,
|
|
__entry->flags,
|
|
__entry->command,
|
|
__print_symbolic(__entry->protocol,
|
|
{ I2C_SMBUS_QUICK, "QUICK" },
|
|
{ I2C_SMBUS_BYTE, "BYTE" },
|
|
{ I2C_SMBUS_BYTE_DATA, "BYTE_DATA" },
|
|
{ I2C_SMBUS_WORD_DATA, "WORD_DATA" },
|
|
{ I2C_SMBUS_PROC_CALL, "PROC_CALL" },
|
|
{ I2C_SMBUS_BLOCK_DATA, "BLOCK_DATA" },
|
|
{ I2C_SMBUS_I2C_BLOCK_BROKEN, "I2C_BLOCK_BROKEN" },
|
|
{ I2C_SMBUS_BLOCK_PROC_CALL, "BLOCK_PROC_CALL" },
|
|
{ I2C_SMBUS_I2C_BLOCK_DATA, "I2C_BLOCK_DATA" }),
|
|
__entry->read_write == I2C_SMBUS_WRITE ? "wr" : "rd",
|
|
__entry->res
|
|
));
|
|
|
|
#endif /* _TRACE_SMBUS_H */
|
|
|
|
/* This part must be outside protection */
|
|
#include <trace/define_trace.h>
|