drivers/platform/chrome/cros_ec_sensorhub_trace.h

Source file repositories/reference/linux-study-clean/drivers/platform/chrome/cros_ec_sensorhub_trace.h

File Facts

System
Linux kernel
Corpus path
drivers/platform/chrome/cros_ec_sensorhub_trace.h
Extension
.h
Size
3586 bytes
Lines
124
Domain
Driver Families
Bucket
drivers/platform
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#undef TRACE_SYSTEM
#define TRACE_SYSTEM cros_ec

#if !defined(_CROS_EC_SENSORHUB_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
#define _CROS_EC_SENSORHUB_TRACE_H_

#include <linux/types.h>
#include <linux/platform_data/cros_ec_sensorhub.h>

#include <linux/tracepoint.h>

TRACE_EVENT(cros_ec_sensorhub_timestamp,
	    TP_PROTO(u32 ec_sample_timestamp, u32 ec_fifo_timestamp, s64 fifo_timestamp,
		     s64 current_timestamp, s64 current_time),
	TP_ARGS(ec_sample_timestamp, ec_fifo_timestamp, fifo_timestamp, current_timestamp,
		current_time),
	TP_STRUCT__entry(
		__field(u32, ec_sample_timestamp)
		__field(u32, ec_fifo_timestamp)
		__field(s64, fifo_timestamp)
		__field(s64, current_timestamp)
		__field(s64, current_time)
		__field(s64, delta)
	),
	TP_fast_assign(
		__entry->ec_sample_timestamp = ec_sample_timestamp;
		__entry->ec_fifo_timestamp = ec_fifo_timestamp;
		__entry->fifo_timestamp = fifo_timestamp;
		__entry->current_timestamp = current_timestamp;
		__entry->current_time = current_time;
		__entry->delta = current_timestamp - current_time;
	),
	TP_printk("ec_ts: %9u, ec_fifo_ts: %9u, fifo_ts: %12lld, curr_ts: %12lld, curr_time: %12lld, delta %12lld",
		  __entry->ec_sample_timestamp,
		__entry->ec_fifo_timestamp,
		__entry->fifo_timestamp,
		__entry->current_timestamp,
		__entry->current_time,
		__entry->delta
	)
);

TRACE_EVENT(cros_ec_sensorhub_data,
	    TP_PROTO(u32 ec_sensor_num, u32 ec_fifo_timestamp, s64 fifo_timestamp,
		     s64 current_timestamp, s64 current_time),
	TP_ARGS(ec_sensor_num, ec_fifo_timestamp, fifo_timestamp, current_timestamp, current_time),
	TP_STRUCT__entry(
		__field(u32, ec_sensor_num)
		__field(u32, ec_fifo_timestamp)
		__field(s64, fifo_timestamp)
		__field(s64, current_timestamp)
		__field(s64, current_time)
		__field(s64, delta)
	),
	TP_fast_assign(
		__entry->ec_sensor_num = ec_sensor_num;
		__entry->ec_fifo_timestamp = ec_fifo_timestamp;
		__entry->fifo_timestamp = fifo_timestamp;
		__entry->current_timestamp = current_timestamp;
		__entry->current_time = current_time;
		__entry->delta = current_timestamp - current_time;
	),
	TP_printk("ec_num: %4u, ec_fifo_ts: %9u, fifo_ts: %12lld, curr_ts: %12lld, curr_time: %12lld, delta %12lld",
		  __entry->ec_sensor_num,
		__entry->ec_fifo_timestamp,
		__entry->fifo_timestamp,
		__entry->current_timestamp,
		__entry->current_time,
		__entry->delta
	)
);

TRACE_EVENT(cros_ec_sensorhub_filter,
	    TP_PROTO(struct cros_ec_sensors_ts_filter_state *state, s64 dx, s64 dy),
	TP_ARGS(state, dx, dy),
	TP_STRUCT__entry(
		__field(s64, dx)
		__field(s64, dy)
		__field(s64, median_m)
		__field(s64, median_error)
		__field(s64, history_len)
		__field(s64, x)
		__field(s64, y)
	),
	TP_fast_assign(
		__entry->dx = dx;
		__entry->dy = dy;
		__entry->median_m = state->median_m;
		__entry->median_error = state->median_error;
		__entry->history_len = state->history_len;

Annotation

Implementation Notes