42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
/* Copyright (c) 2015 The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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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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#include <linux/mutex.h>
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struct votable;
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enum votable_type {
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VOTE_MIN,
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VOTE_MAX,
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VOTE_SET_ANY,
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NUM_VOTABLE_TYPES,
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};
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int get_client_vote(struct votable *votable, int client_id);
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int get_client_vote_locked(struct votable *votable, int client_id);
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int get_effective_result(struct votable *votable);
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int get_effective_result_locked(struct votable *votable);
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int get_effective_client_id(struct votable *votable);
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int get_effective_client_id_locked(struct votable *votable);
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int vote(struct votable *votable, int client_id, bool state, int val);
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struct votable *create_votable(struct device *dev, const char *name,
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int votable_type, int num_clients,
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int default_result,
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int (*callback)(struct device *dev,
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int effective_result,
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int effective_client,
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int last_result,
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int last_client)
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);
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void lock_votable(struct votable *votable);
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void unlock_votable(struct votable *votable);
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