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Camera fsync signal Driver provides following features. - Configures and runs TSC generator to provide fsync signal to the camera module - FSYNC signal is programmed as specified in DT for freq and offset - Start time of fsync signal can be specified or default value can be used - Default value used will be 10ms in future - If start time is provided, value must be provided in TSC ticks unit - Read DT, if tsc-gen-groups are specified, init & expose node for each group - Each generator in group is configured - IOCTL interface is exposed to accept start time and start the generator - Sanity check is done to ensure, no generator is part of multiple groups - Backward compatibility is maintained JIRA CAMERASW-11902 Bug 3799488 Change-Id: I4f278eb95b8f85edb2d5e7664c9f2dd694437263 Signed-off-by: Mohit Ingale <mohiti@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2898373 Reviewed-by: Bhushan Rayrikar <brayrikar@nvidia.com> Reviewed-by: Frank Chen <frankc@nvidia.com> Reviewed-by: Shiva Dubey <sdubey@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
24 lines
865 B
C
24 lines
865 B
C
/* SPDX-License-Identifier: LicenseRef-NvidiaProprietary
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* SPDX-FileCopyrightText: Copyright (c) 2023 NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __CAM_FSYNC_H__
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#define __CAM_FSYNC_H__
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#define CAM_FSYNC_GRP_ABS_START_VAL \
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_IOW('T', 1, uint64_t)
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#endif
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