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eb3798463f
Add a new rotation matrix sysfs attribute compliant with IIO core mounting matrix API. Matrix is retrieved from "in_anglvel_mount_matrix" and "in_accel_mount_matrix" sysfs attributes. It is declared into mpu6050 DTS entry as a "mount-matrix" property. Old interface is kept for backward userspace compatibility and may be retrieved from legacy platform_data mechanism only. Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
35 lines
1.2 KiB
C
35 lines
1.2 KiB
C
/*
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* Copyright (C) 2012 Invensense, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __INV_MPU6050_PLATFORM_H_
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#define __INV_MPU6050_PLATFORM_H_
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/**
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* struct inv_mpu6050_platform_data - Platform data for the mpu driver
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* @orientation: Orientation matrix of the chip (deprecated in favor of
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* mounting matrix retrieved from device-tree)
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*
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* Contains platform specific information on how to configure the MPU6050 to
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* work on this platform. The orientation matricies are 3x3 rotation matricies
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* that are applied to the data to rotate from the mounting orientation to the
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* platform orientation. The values must be one of 0, 1, or -1 and each row and
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* column should have exactly 1 non-zero value.
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*
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* Deprecated in favor of mounting matrix retrieved from device-tree.
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*/
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struct inv_mpu6050_platform_data {
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__s8 orientation[9];
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};
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#endif
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