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, 117 deletions

diff --git a/include/newton_fit.h b/include/newton_fit.h
deleted file mode 100644
index b4db64c814..0000000000
--- a/include/newton_fit.h
+++ /dev/null
@@ -1,117 +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.
- */
-
-/* Newton's method for sphere fit algorithm */
-
-#ifndef __CROS_EC_NEWTON_FIT_H
-#define __CROS_EC_NEWTON_FIT_H
-
-#include "queue.h"
-#include "vec3.h"
-#include "stdbool.h"
-
-struct newton_fit_orientation {
-	/** An orientations. */
-	fpv3_t orientation;
-
-	/** The number of samples of this orientation. */
-	uint8_t nsamples;
-};
-
-struct newton_fit {
-	/**
-	 * Threshold used to detect when two vectors are identical. Measured in
-	 * units^2.
-	 */
-	fp_t nearness_threshold;
-
-	/**
-	 * The weight to use for a new data point when computing the mean. When
-	 * a new point is considered the same as an existing orientation (via
-	 * the nearness_threshold) it will be averaged with the existing
-	 * orientation using this weight. Valid range is (0,1).
-	 */
-	fp_t new_pt_weight;
-
-	/**
-	 * The threshold used to determine whether or not to continue iterating
-	 * when performing the bias computation.
-	 */
-	fp_t error_threshold;
-
-	/**
-	 * The maximum number of orientations to use, changing this affects the
-	 * memory footprint of the algorithm as 3 floats are needed per
-	 * orientation.
-	 */
-	uint32_t max_orientations;
-
-	/**
-	 * The maximum number of iterations the algorithm is allowed to run.
-	 */
-	uint32_t max_iterations;
-
-	/**
-	 * The minimum number of samples per orientation to consider the
-	 * orientation ready for calculation
-	 */
-	uint8_t min_orientation_samples;
-
-	/**
-	 * Queue of newton_fit_orientation structs.
-	 */
-	struct queue *orientations;
-};
-
-#define NEWTON_FIT(SIZE, NSAMPLES, NEAR_THRES, NEW_PT_WEIGHT, ERROR_THRESHOLD, \
-		   MAX_ITERATIONS)                                             \
-	((struct newton_fit){                                                  \
-		.nearness_threshold = NEAR_THRES,                              \
-		.new_pt_weight = NEW_PT_WEIGHT,                                \
-		.error_threshold = ERROR_THRESHOLD,                            \
-		.max_orientations = SIZE,                                      \
-		.max_iterations = MAX_ITERATIONS,                              \
-		.min_orientation_samples = NSAMPLES,                           \
-		.orientations = (struct queue *)&QUEUE_NULL(                   \
-			SIZE, struct newton_fit_orientation),                  \
-	})
-
-/**
- * Reset the newton_fit struct's state.
- *
- * @param fit Pointer to the struct.
- */
-void newton_fit_reset(struct newton_fit *fit);
-
-/**
- * Add new vector to the struct. The behavior of this depends on the
- * configuration values used when the struct was created. For example:
- * - Samples that are within sqrt(NEAR_THRES) of an existing orientation will
- *   be averaged with the matching orientation entry.
- * - If the new sample isn't near an existing orientation it will only be added
- *   if state->num_orientations < config->num_orientations.
- *
- * @param fit Pointer to the struct.
- * @param x The new samples' X component.
- * @param y The new samples' Y component.
- * @param z The new samples' Z component.
- * @return True if orientations are full and the struct is ready to compute the
- *         bias.
- */
-bool newton_fit_accumulate(struct newton_fit *fit, fp_t x, fp_t y, fp_t z);
-
-/**
- * Compute the center/bias and optionally the radius represented by the current
- * struct.
- *
- * @param fit Pointer to the struct.
- * @param bias Pointer to the output bias (this is also the starting bias for
- *             the algorithm.
- * @param radius Optional pointer to write the computed radius into. If NULL,
- *               the calculation will be skipped.
- */
-void newton_fit_compute(struct newton_fit *fit, fpv3_t bias, fp_t *radius);
-
-#endif /* __CROS_EC_NEWTON_FIT_H */