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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* I2C slave tracepoints
*
* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM i2c_slave
#if !defined(_TRACE_I2C_SLAVE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_I2C_SLAVE_H
#include <linux/i2c.h>
#include <linux/tracepoint.h>
TRACE_DEFINE_ENUM(I2C_SLAVE_READ_REQUESTED);
TRACE_DEFINE_ENUM(I2C_SLAVE_WRITE_REQUESTED);
TRACE_DEFINE_ENUM(I2C_SLAVE_READ_PROCESSED);
TRACE_DEFINE_ENUM(I2C_SLAVE_WRITE_RECEIVED);
TRACE_DEFINE_ENUM(I2C_SLAVE_STOP);
#define show_event_type(type) \
__print_symbolic(type, \
{ I2C_SLAVE_READ_REQUESTED, "RD_REQ" }, \
{ I2C_SLAVE_WRITE_REQUESTED, "WR_REQ" }, \
{ I2C_SLAVE_READ_PROCESSED, "RD_PRO" }, \
{ I2C_SLAVE_WRITE_RECEIVED, "WR_RCV" }, \
{ I2C_SLAVE_STOP, " STOP" })
TRACE_EVENT(i2c_slave,
TP_PROTO(const struct i2c_client *client, enum i2c_slave_event event,
__u8 *val, int cb_ret),
TP_ARGS(client, event, val, cb_ret),
TP_STRUCT__entry(
__field(int, adapter_nr )
__field(int, ret )
__field(__u16, addr )
__field(__u16, len )
__field(enum i2c_slave_event, event )
__array(__u8, buf, 1) ),
TP_fast_assign(
__entry->adapter_nr = client->adapter->nr;
__entry->addr = client->addr;
__entry->event = event;
__entry->ret = cb_ret;
switch (event) {
case I2C_SLAVE_READ_REQUESTED:
case I2C_SLAVE_READ_PROCESSED:
case I2C_SLAVE_WRITE_RECEIVED:
__entry->len = 1;
memcpy(__entry->buf, val, __entry->len);
break;
default:
__entry->len = 0;
break;
}
),
TP_printk("i2c-%d a=%03x ret=%d %s [%*phD]",
__entry->adapter_nr, __entry->addr, __entry->ret,
show_event_type(__entry->event), __entry->len, __entry->buf
));
#endif /* _TRACE_I2C_SLAVE_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
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