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/* SPDX-License-Identifier: GPL-2.0 */
/*
* mux/consumer.h - definitions for the multiplexer consumer interface
*
* Copyright (C) 2017 Axentia Technologies AB
*
* Author: Peter Rosin <peda@axentia.se>
*/
#ifndef _LINUX_MUX_CONSUMER_H
#define _LINUX_MUX_CONSUMER_H
#include <linux/compiler.h>
struct device;
struct mux_control;
struct mux_state;
#if IS_ENABLED(CONFIG_MULTIPLEXER)
unsigned int mux_control_states(struct mux_control *mux);
int __must_check mux_control_select_delay(struct mux_control *mux,
unsigned int state,
unsigned int delay_us);
int __must_check mux_state_select_delay(struct mux_state *mstate,
unsigned int delay_us);
int __must_check mux_control_try_select_delay(struct mux_control *mux,
unsigned int state,
unsigned int delay_us);
int __must_check mux_state_try_select_delay(struct mux_state *mstate,
unsigned int delay_us);
static inline int __must_check mux_control_select(struct mux_control *mux,
unsigned int state)
{
return mux_control_select_delay(mux, state, 0);
}
static inline int __must_check mux_state_select(struct mux_state *mstate)
{
return mux_state_select_delay(mstate, 0);
}
static inline int __must_check mux_control_try_select(struct mux_control *mux,
unsigned int state)
{
return mux_control_try_select_delay(mux, state, 0);
}
static inline int __must_check mux_state_try_select(struct mux_state *mstate)
{
return mux_state_try_select_delay(mstate, 0);
}
int mux_control_deselect(struct mux_control *mux);
int mux_state_deselect(struct mux_state *mstate);
struct mux_control *mux_control_get(struct device *dev, const char *mux_name);
struct mux_control *mux_control_get_optional(struct device *dev, const char *mux_name);
void mux_control_put(struct mux_control *mux);
struct mux_control *devm_mux_control_get(struct device *dev, const char *mux_name);
struct mux_state *devm_mux_state_get(struct device *dev, const char *mux_name);
struct mux_state *devm_mux_state_get_optional(struct device *dev, const char *mux_name);
struct mux_state *devm_mux_state_get_selected(struct device *dev, const char *mux_name);
struct mux_state *devm_mux_state_get_optional_selected(struct device *dev, const char *mux_name);
#else
static inline unsigned int mux_control_states(struct mux_control *mux)
{
return 0;
}
static inline int __must_check mux_control_select_delay(struct mux_control *mux,
unsigned int state, unsigned int delay_us)
{
return -EOPNOTSUPP;
}
static inline int __must_check mux_state_select_delay(struct mux_state *mstate,
unsigned int delay_us)
{
return -EOPNOTSUPP;
}
static inline int __must_check mux_control_try_select_delay(struct mux_control *mux,
unsigned int state,
unsigned int delay_us)
{
return -EOPNOTSUPP;
}
static inline int __must_check mux_state_try_select_delay(struct mux_state *mstate,
unsigned int delay_us)
{
return -EOPNOTSUPP;
}
static inline int __must_check mux_control_select(struct mux_control *mux,
unsigned int state)
{
return -EOPNOTSUPP;
}
static inline int __must_check mux_state_select(struct mux_state *mstate)
{
return -EOPNOTSUPP;
}
static inline int __must_check mux_control_try_select(struct mux_control *mux,
unsigned int state)
{
return -EOPNOTSUPP;
}
static inline int __must_check mux_state_try_select(struct mux_state *mstate)
{
return -EOPNOTSUPP;
}
static inline int mux_control_deselect(struct mux_control *mux)
{
return -EOPNOTSUPP;
}
static inline int mux_state_deselect(struct mux_state *mstate)
{
return -EOPNOTSUPP;
}
static inline struct mux_control *mux_control_get(struct device *dev, const char *mux_name)
{
return ERR_PTR(-EOPNOTSUPP);
}
static inline struct mux_control *mux_control_get_optional(struct device *dev,
const char *mux_name)
{
return NULL;
}
static inline void mux_control_put(struct mux_control *mux) {}
static inline struct mux_control *devm_mux_control_get(struct device *dev, const char *mux_name)
{
return ERR_PTR(-EOPNOTSUPP);
}
static inline struct mux_state *devm_mux_state_get(struct device *dev, const char *mux_name)
{
return ERR_PTR(-EOPNOTSUPP);
}
static inline struct mux_state *devm_mux_state_get_optional(struct device *dev,
const char *mux_name)
{
return NULL;
}
static inline struct mux_state *devm_mux_state_get_selected(struct device *dev,
const char *mux_name)
{
return ERR_PTR(-EOPNOTSUPP);
}
static inline struct mux_state *devm_mux_state_get_optional_selected(struct device *dev,
const char *mux_name)
{
return NULL;
}
#endif /* CONFIG_MULTIPLEXER */
#endif /* _LINUX_MUX_CONSUMER_H */
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