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linux-headers-6.8.0-83-generic
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smbus.h
/* 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>
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