ish: Trim down the release branchstabilize-wristpin-14469.59.B-ishstabilize-voshyr-14637.B-ishstabilize-quickfix-14695.187.B-ishstabilize-quickfix-14695.124.B-ishstabilize-quickfix-14526.91.B-ishstabilize-14695.85.B-ishstabilize-14695.107.B-ishstabilize-14682.B-ishstabilize-14633.B-ishstabilize-14616.B-ishstabilize-14589.B-ishstabilize-14588.98.B-ishstabilize-14588.14.B-ishstabilize-14588.123.B-ishstabilize-14536.B-ishstabilize-14532.B-ishstabilize-14528.B-ishstabilize-14526.89.B-ishstabilize-14526.84.B-ishstabilize-14526.73.B-ishstabilize-14526.67.B-ishstabilize-14526.57.B-ishstabilize-14498.B-ishstabilize-14496.B-ishstabilize-14477.B-ishstabilize-14469.9.B-ishstabilize-14469.8.B-ishstabilize-14469.58.B-ishstabilize-14469.41.B-ishstabilize-14442.B-ishstabilize-14438.B-ishstabilize-14411.B-ishstabilize-14396.B-ishstabilize-14395.B-ishstabilize-14388.62.B-ishstabilize-14388.61.B-ishstabilize-14388.52.B-ishstabilize-14385.B-ishstabilize-14345.B-ishstabilize-14336.B-ishstabilize-14333.B-ishrelease-R99-14469.B-ishrelease-R98-14388.B-ishrelease-R102-14695.B-ishrelease-R101-14588.B-ishrelease-R100-14526.B-ishfirmware-cherry-14454.B-ishfirmware-brya-14505.B-ishfirmware-brya-14505.71.B-ishfactory-kukui-14374.B-ishfactory-guybrush-14600.B-ishfactory-cherry-14455.B-ishfactory-brya-14517.B-ish

In the interest of making long-term branch maintenance incur as little
technical debt on us as possible, we should not maintain any files on
the branch we are not actually using.

This has the added effect of making it extremely clear when merging CLs
from the main branch when changes have the possibility to affect us.

The follow-on CL adds a convenience script to actually pull updates from
the main branch and generate a CL for the update.

BUG=b:204206272
BRANCH=ish
TEST=make BOARD=arcada_ish && make BOARD=drallion_ish

Signed-off-by: Jack Rosenthal <jrosenth@chromium.org>
Change-Id: I17e4694c38219b5a0823e0a3e55a28d1348f4b18
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3262038
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Tom Hughes <tomhughes@chromium.org>

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 */