RTEMS 6.1-rc2
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switch-nxp-pca9548a.h
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1/* SPDX-License-Identifier: BSD-2-Clause */
2
11/*
12 * Copyright (c) 2014 embedded brains GmbH & Co. KG
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
24 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
27 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 */
35
36#ifndef _DEV_I2C_SWITCH_NXP_PCA9548A_H
37#define _DEV_I2C_SWITCH_NXP_PCA9548A_H
38
39#include <dev/i2c/i2c.h>
40
41#ifdef __cplusplus
42extern "C" {
43#endif /* __cplusplus */
44
55int i2c_dev_register_switch_nxp_pca9548a(
56 const char *bus_path,
57 const char *dev_path,
58 uint16_t address
59);
60
61#define SWITCH_NXP_PCA9548A_GET_CONTROL (I2C_DEV_IO_CONTROL + 0)
62
63#define SWITCH_NXP_PCA9548A_SET_CONTROL (I2C_DEV_IO_CONTROL + 1)
64
65static inline int switch_nxp_pca9548a_get_control(int fd, uint8_t *val)
66{
67 return ioctl(fd, SWITCH_NXP_PCA9548A_GET_CONTROL, val);
68}
69
70static inline int switch_nxp_pca9548a_set_control(int fd, uint8_t val)
71{
72 return ioctl(fd, SWITCH_NXP_PCA9548A_SET_CONTROL, (void *)(uintptr_t) val);
73}
74
77#ifdef __cplusplus
78}
79#endif /* __cplusplus */
80
81#endif /* _DEV_I2C_SWITCH_NXP_PCA9548A_H */
Inter-Integrated Circuit (I2C) Driver API.