54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
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/*
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* include/linux/extcon/extcon-disp.h
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*
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* extcon driver for display accessory detection compatible with switch-mid
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*
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* Copyright (c) 2018, NVIDIA CORPORATION, All rights reserved.
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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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*/
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#ifndef _EXTCON_DISP_H_
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#define _EXTCON_DISP_H_ __FILE__
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#include <linux/module.h>
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#include <linux/extcon.h>
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#define EXTCON_DISP_HPD_STATE_DISABLED false
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#define EXTCON_DISP_HPD_STATE_ENABLED true
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#define EXTCON_DISP_AUX_STATE_DISABLED false
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#define EXTCON_DISP_AUX_STATE_ENABLED true
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#ifdef CONFIG_EXTCON_DISP_STATE
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/**
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* disp_state_extcon_switch_report() - Report the state of external
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* connector to extcon driver.
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* @cable: Cable for which state is reported.
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* @state: Reported state of cable
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*/
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void disp_state_extcon_switch_report(const unsigned int cable, bool state);
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/**
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* disp_state_extcon_aux_report() - Wrapper on extcon switch report function
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* to facilitate reporting aux connectors by their instance id.
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* @aux_idx: Audio connector instance for which state is reported
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* @state: Reported state of cable
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*/
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void disp_state_extcon_aux_report(const unsigned int aux_idx, bool state);
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#else
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static inline void disp_state_extcon_switch_report(const unsigned int cable,
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bool state) { return; }
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static inline void disp_state_extcon_aux_report(const unsigned int aux_idx,
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bool state) { return; }
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#endif
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#endif /* _EXTCON_DISP_H */
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