trace: sensors: Add ATRACE macros for sensor events

Adding ATRACE macros will enable tracking motion sensor
events for end-to-end latency.

AV-388

Change-Id: I774dff325d92b954aaecb660f81899f277566cf2
Signed-off-by: Robert Collins <rcollins@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1536969
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Akhilesh Khumbum <akhumbum@nvidia.com>

2 files changed, 54 insertions, 1 deletions

diff --git a/include/trace/events/atrace.h b/include/trace/events/atrace.h
index 7fe8b30d9..486809336 100644
--- a/include/trace/events/atrace.h
+++ b/include/trace/events/atrace.h
@@ -3,7 +3,7 @@
  *
  * atrace specific events
  *
- * Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2017-2018, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/include/trace/events/nvs_sensors.h b/include/trace/events/nvs_sensors.h
new file mode 100644
index 000000000..13de3ea53
--- /dev/null
+++ b/include/trace/events/nvs_sensors.h
@@ -0,0 +1,53 @@
+/*
+ * include/trace/events/nvs_sensors.h
+ *
+ * Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef _LINUX_TRACE_EVENTS_NVS_SENSORS_H
+#define _LINUX_TRACE_EVENTS_NVS_SENSORS_H
+
+#include <trace/events/atrace.h>
+#define TRACE_SENSOR_ID                 (100)
+
+/*
+ * (keep sync with sensor HAL trace.h)
+ * COOKIE defintion for sensor HAL ATRACE events
+ *
+ *  3322222222221111111111000 0 000000 - Bit
+ *  1098765432109876543210987 6 543210   Position
+ * +-------------------------+-+------+
+ * | TIMESTAMP               |P| STYPE|
+ * +-------------------------+-+------+
+ *
+ * Where:
+ * TIMESTAMP = Sensor event timestamp
+ * P         = Private sensor bit indicator (1=private, 0=not private)
+ * STYPE     = Sensor TYPE
+ */
+#define COOKIE_TOTAL_BITS 32
+#define COOKIE_SENSOR_TYPE_BITS 6
+#define COOKIE_SENSOR_PRIVATE_BITS 1
+#define COOKIE_TIMESTAMP_BITS (COOKIE_TOTAL_BITS - COOKIE_SENSOR_PRIVATE_BITS - COOKIE_SENSOR_TYPE_BITS)
+
+#define COOKIE_SENSOR_TYPE_SHIFT 0
+#define COOKIE_SENSOR_PRIVATE_SHIFT COOKIE_SENSOR_TYPE_BITS
+#define COOKIE_TIMESTAMP_SHIFT (COOKIE_SENSOR_PRIVATE_BITS + COOKIE_SENSOR_TYPE_BITS)
+
+#define COOKIE_SENSOR_TYPE_MASK (((1 << COOKIE_SENSOR_TYPE_BITS) - 1) << COOKIE_SENSOR_TYPE_SHIFT)
+#define COOKIE_SENSOR_PRIVATE_MASK (((1 << COOKIE_SENSOR_PRIVATE_BITS) - 1) << COOKIE_SENSOR_PRIVATE_SHIFT)
+#define COOKIE_TIMESTAMP_MASK (((1 << COOKIE_TIMESTAMP_BITS) - 1) << COOKIE_TIMESTAMP_SHIFT)
+
+#define SENSOR_TYPE_PRIVATE_BIT_POS 16
+#define TIMESTAMP_SCALE_SHIFT 16        // divide by 65536
+
+#define COOKIE(sensor_type,timestamp) \
+    (((sensor_type >> (COOKIE_TOTAL_BITS - SENSOR_TYPE_PRIVATE_BIT_POS - COOKIE_SENSOR_PRIVATE_SHIFT)) & COOKIE_SENSOR_PRIVATE_MASK) | \
+    ((sensor_type << COOKIE_SENSOR_TYPE_SHIFT) & COOKIE_SENSOR_TYPE_MASK) | \
+    (((timestamp >> TIMESTAMP_SCALE_SHIFT) << COOKIE_TIMESTAMP_SHIFT) & COOKIE_TIMESTAMP_MASK))
+
+#endif /* _LINUX_TRACE_EVENTS_NVS_SENSORS_H */