xref: /dragonfly/sys/dev/drm/include/linux/gpio/consumer.h (revision e5a92d33)
1 /*
2  * Copyright (c) 2016 François Tigeot
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice unmodified, this list of conditions, and the following
10  *    disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 #ifndef _LINUX_GPIO_CONSUMER_H_
28 #define _LINUX_GPIO_CONSUMER_H_
29 
30 #define GPIOD_FLAGS_BIT_DIR_SET		1
31 #define GPIOD_FLAGS_BIT_DIR_OUT		2
32 #define GPIOD_FLAGS_BIT_DIR_VAL		4
33 
34 enum gpiod_flags {
35 	GPIOD_ASIS	= 0,
36 	GPIOD_IN	= GPIOD_FLAGS_BIT_DIR_SET,
37 	GPIOD_OUT_LOW	= GPIOD_FLAGS_BIT_DIR_SET | GPIOD_FLAGS_BIT_DIR_OUT,
38 	GPIOD_OUT_HIGH	= GPIOD_FLAGS_BIT_DIR_SET | GPIOD_FLAGS_BIT_DIR_OUT |
39 			  GPIOD_FLAGS_BIT_DIR_VAL,
40 };
41 
42 static inline struct gpio_desc *
43 gpiod_get(struct device *dev, const char *con_id, enum gpiod_flags flags)
44 {
45 	kprintf("Stub: %s\n", __FUNCTION__);
46 	return NULL;
47 }
48 
49 static inline void
50 gpiod_put(struct gpio_desc *desc)
51 {
52 	kprintf("Stub: %s\n", __FUNCTION__);
53 }
54 
55 static inline void
56 gpiod_set_value_cansleep(struct gpio_desc *desc, int value)
57 {
58 	kprintf("Stub: %s\n", __FUNCTION__);
59 }
60 
61 #endif	/* _LINUX_GPIO_CONSUMER_H_ */
62