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