1 files changed, 0 insertions, 91 deletions
diff --git a/include/gyro_still_det.h b/include/gyro_still_det.h
deleted file mode 100644
index a776da7ae7..0000000000
--- a/include/gyro_still_det.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/* Copyright 2020 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef __CROS_EC_GYRO_STILL_DET_H
-#define __CROS_EC_GYRO_STILL_DET_H
-
-#include "common.h"
-#include "math_util.h"
-#include "stdbool.h"
-#include "vec3.h"
-
-struct gyro_still_det {
-	/**
-	 * Variance threshold for the stillness confidence score.
-	 * [sensor units]^2
-	 */
-	fp_t var_threshold;
-
-	/**
-	 * Delta about the variance threshold for calculation of the stillness
-	 * confidence score [0,1]. [sensor units]^2
-	 */
-	fp_t confidence_delta;
-
-	/**
-	 * Flag to indicate when enough samples have been collected for
-	 * a complete stillness calculation.
-	 */
-	bool stillness_window_ready;
-
-	/**
-	 * Flag to signal the beginning of a new stillness detection window.
-	 * This is used to keep track of the window start time.
-	 */
-	bool start_new_window;
-
-	/** Starting time stamp for the current window. */
-	uint32_t window_start_time;
-
-	/**
-	 * Accumulator variables for tracking the sample mean during
-	 * the stillness period.
-	 */
-	uint32_t num_acc_samples;
-	fpv3_t mean;
-
-	/**
-	 * Accumulator variables for computing the window sample mean and
-	 * variance for the current window (used for stillness detection).
-	 */
-	uint32_t num_acc_win_samples;
-	fpv3_t win_mean;
-	fpv3_t assumed_mean;
-	fpv3_t acc_var;
-
-	/** Stillness period mean (used for look-ahead). */
-	fpv3_t prev_mean;
-
-	/** Latest computed variance. */
-	fpv3_t win_var;
-
-	/**
-	 * Stillness confidence score for current and previous sample
-	 * windows [0,1] (used for look-ahead).
-	 */
-	fp_t stillness_confidence;
-	fp_t prev_stillness_confidence;
-
-	/** Timestamp of last sample recorded. */
-	uint32_t last_sample_time;
-};
-
-/** Update the stillness detector with a new sample. */
-void gyro_still_det_update(struct gyro_still_det *gyro_still_det,
-			   uint32_t stillness_win_endtime, uint32_t sample_time,
-			   fp_t x, fp_t y, fp_t z);
-
-/** Calculates and returns the stillness confidence score [0,1]. */
-fp_t gyro_still_det_compute(struct gyro_still_det *gyro_still_det);
-
-/**
- * Resets the stillness detector and initiates a new detection window.
- *
- * @param reset_stats Determines whether the stillness statistics are reset.
- */
-void gyro_still_det_reset(struct gyro_still_det *gyro_still_det,
-			  bool reset_stats);
-
-#endif /* __CROS_EC_GYRO_STILL_DET_H */