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, 0);
35 }
36
37 static inline int __must_check mux_state_select(struct mux_state *mstate)
38 {
39 return mux_state_select_delay(mstate, 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, 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, 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
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