From 3f397c2144e46d9127662fdb6314f21960d8563d Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Fri, 20 May 2011 00:40:19 -0600 Subject: gpio: add trace events for setting direction and value MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch allows to trace gpio operations using ftrace Signed-off-by: Uwe Kleine-König Signed-off-by: Grant Likely --- include/trace/events/gpio.h | 56 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 include/trace/events/gpio.h (limited to 'include/trace') diff --git a/include/trace/events/gpio.h b/include/trace/events/gpio.h new file mode 100644 index 00000000000..927a8ad9e51 --- /dev/null +++ b/include/trace/events/gpio.h @@ -0,0 +1,56 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM gpio + +#if !defined(_TRACE_GPIO_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_GPIO_H + +#include + +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 -- cgit v1.2.3-70-g09d2