1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
/**
* @file
*
* @brief GPIO NXP PCA9535 Driver API
*
* @ingroup I2CGPIONXPPCA9535
*/
/*
* Copyright (c) 2014 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifndef _DEV_I2C_GPIO_NXP_PCA9539_H
#define _DEV_I2C_GPIO_NXP_PCA9539_H
#include <dev/i2c/i2c.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* @defgroup I2CGPIONXPPCA9535 GPIO NXP PCA9535 Driver
*
* @ingroup I2CDevice
*
* @brief Driver for NXP PCA9535 16-bit GPIO device.
*
* @{
*/
int i2c_dev_register_gpio_nxp_pca9535(
const char *bus_path,
const char *dev_path,
uint16_t address
);
#define GPIO_NXP_PCA9535_GET_INPUT (I2C_DEV_IO_CONTROL + 0)
#define GPIO_NXP_PCA9535_GET_OUTPUT (I2C_DEV_IO_CONTROL + 1)
#define GPIO_NXP_PCA9535_SET_OUTPUT (I2C_DEV_IO_CONTROL + 2)
#define GPIO_NXP_PCA9535_CLEAR_AND_SET_OUTPUT (I2C_DEV_IO_CONTROL + 3)
#define GPIO_NXP_PCA9535_GET_POL_INV (I2C_DEV_IO_CONTROL + 4)
#define GPIO_NXP_PCA9535_SET_POL_INV (I2C_DEV_IO_CONTROL + 5)
#define GPIO_NXP_PCA9535_GET_CONFIG (I2C_DEV_IO_CONTROL + 6)
#define GPIO_NXP_PCA9535_SET_CONFIG (I2C_DEV_IO_CONTROL + 7)
static inline int gpio_nxp_pca9535_get_input(int fd, uint16_t *val)
{
return ioctl(fd, GPIO_NXP_PCA9535_GET_INPUT, val);
}
static inline int gpio_nxp_pca9535_get_output(int fd, uint16_t *val)
{
return ioctl(fd, GPIO_NXP_PCA9535_GET_OUTPUT, val);
}
static inline int gpio_nxp_pca9535_set_output(int fd, uint16_t val)
{
return ioctl(fd, GPIO_NXP_PCA9535_SET_OUTPUT, (void *)(uintptr_t) val);
}
static inline int gpio_nxp_pca9535_clear_and_set_output(
int fd,
uint16_t clear,
uint16_t set
)
{
uint32_t clear_and_set = ((uint32_t) set << 16) | (uint32_t) clear;
return ioctl(
fd,
GPIO_NXP_PCA9535_CLEAR_AND_SET_OUTPUT,
(void *)(uintptr_t) clear_and_set
);
}
static inline int gpio_nxp_pca9535_get_polarity_inversion(
int fd,
uint16_t *val
)
{
return ioctl(fd, GPIO_NXP_PCA9535_GET_POL_INV, val);
}
static inline int gpio_nxp_pca9535_set_polarity_inversion(int fd, uint16_t val)
{
return ioctl(fd, GPIO_NXP_PCA9535_SET_POL_INV, (void *)(uintptr_t) val);
}
static inline int gpio_nxp_pca9535_get_config(int fd, uint16_t *val)
{
return ioctl(fd, GPIO_NXP_PCA9535_GET_CONFIG, val);
}
static inline int gpio_nxp_pca9535_set_config(int fd, uint16_t val)
{
return ioctl(fd, GPIO_NXP_PCA9535_SET_CONFIG, (void *)(uintptr_t) val);
}
/** @} */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _DEV_I2C_GPIO_NXP_PCA9539_H */
|
