| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | /* |
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| 3 | * mux/consumer.h - definitions for the multiplexer consumer interface |
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| 4 | * |
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| 5 | * Copyright (C) 2017 Axentia Technologies AB |
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| 6 | * |
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| 7 | * Author: Peter Rosin <peda@axentia.se> |
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| 8 | */ |
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| 9 | |
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| 10 | #ifndef _LINUX_MUX_CONSUMER_H |
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| 11 | #define _LINUX_MUX_CONSUMER_H |
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| 12 | |
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| 13 | #include <linux/compiler.h> |
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| 14 | |
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| 15 | struct device; |
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| 16 | struct mux_control; |
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| 17 | struct mux_state; |
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| 18 | |
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| 19 | unsigned int mux_control_states(struct mux_control *mux); |
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| 20 | int __must_check mux_control_select_delay(struct mux_control *mux, |
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| 21 | unsigned int state, |
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| 22 | unsigned int delay_us); |
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| 23 | int __must_check mux_state_select_delay(struct mux_state *mstate, |
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| 24 | unsigned int delay_us); |
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| 25 | int __must_check mux_control_try_select_delay(struct mux_control *mux, |
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| 26 | unsigned int state, |
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| 27 | unsigned int delay_us); |
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| 28 | int __must_check mux_state_try_select_delay(struct mux_state *mstate, |
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| 29 | unsigned int delay_us); |
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| 30 | |
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| 31 | static inline int __must_check mux_control_select(struct mux_control *mux, |
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| 32 | unsigned int state) |
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| 33 | { |
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| 34 | return mux_control_select_delay(mux, state, delay_us: 0); |
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| 35 | } |
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| 36 | |
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| 37 | static inline int __must_check mux_state_select(struct mux_state *mstate) |
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| 38 | { |
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| 39 | return mux_state_select_delay(mstate, delay_us: 0); |
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| 40 | } |
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| 41 | |
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| 42 | static inline int __must_check mux_control_try_select(struct mux_control *mux, |
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| 43 | unsigned int state) |
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| 44 | { |
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| 45 | return mux_control_try_select_delay(mux, state, delay_us: 0); |
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| 46 | } |
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| 47 | |
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| 48 | static inline int __must_check mux_state_try_select(struct mux_state *mstate) |
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| 49 | { |
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| 50 | return mux_state_try_select_delay(mstate, delay_us: 0); |
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| 51 | } |
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| 52 | |
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| 53 | int mux_control_deselect(struct mux_control *mux); |
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| 54 | int mux_state_deselect(struct mux_state *mstate); |
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| 55 | |
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| 56 | struct mux_control *mux_control_get(struct device *dev, const char *mux_name); |
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| 57 | void mux_control_put(struct mux_control *mux); |
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| 58 | |
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| 59 | struct mux_control *devm_mux_control_get(struct device *dev, |
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| 60 | const char *mux_name); |
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| 61 | struct mux_state *devm_mux_state_get(struct device *dev, |
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| 62 | const char *mux_name); |
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| 63 | |
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| 64 | #endif /* _LINUX_MUX_CONSUMER_H */ |
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| 65 | |
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