linux_dsm_epyc7002/include/trace/events/gpio.h
Uwe Kleine-König 3f397c2144 gpio: add trace events for setting direction and value
This patch allows to trace gpio operations using ftrace

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-05-20 00:40:19 -06:00

57 lines
1.0 KiB
C

#undef TRACE_SYSTEM
#define TRACE_SYSTEM gpio
#if !defined(_TRACE_GPIO_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_GPIO_H
#include <linux/tracepoint.h>
TRACE_EVENT(gpio_direction,
TP_PROTO(unsigned gpio, int in, int err),
TP_ARGS(gpio, in, err),
TP_STRUCT__entry(
__field(unsigned, gpio)
__field(int, in)
__field(int, err)
),
TP_fast_assign(
__entry->gpio = gpio;
__entry->in = in;
__entry->err = err;
),
TP_printk("%u %3s (%d)", __entry->gpio,
__entry->in ? "in" : "out", __entry->err)
);
TRACE_EVENT(gpio_value,
TP_PROTO(unsigned gpio, int get, int value),
TP_ARGS(gpio, get, value),
TP_STRUCT__entry(
__field(unsigned, gpio)
__field(int, get)
__field(int, value)
),
TP_fast_assign(
__entry->gpio = gpio;
__entry->get = get;
__entry->value = value;
),
TP_printk("%u %3s %d", __entry->gpio,
__entry->get ? "get" : "set", __entry->value)
);
#endif /* if !defined(_TRACE_GPIO_H) || defined(TRACE_HEADER_MULTI_READ) */
/* This part must be outside protection */
#include <trace/define_trace.h>