aboutsummaryrefslogtreecommitdiff
path: root/include/pca953x.h
blob: 8ed2d1875dda8abb49fe7f48e78beb7954e6814f (plain)
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
/*
 * Copyright 2008 Extreme Engineering Solutions, Inc.
 *
 * SPDX-License-Identifier:	GPL-2.0
 */

#ifndef __PCA953X_H_
#define __PCA953X_H_

#define PCA953X_IN		0x00
#define PCA953X_OUT		0x01
#define PCA953X_POL		0x02
#define PCA953X_CONF		0x03

#define PCA953X_OUT_LOW		0
#define PCA953X_OUT_HIGH	1
#define PCA953X_POL_NORMAL	0
#define PCA953X_POL_INVERT	1
#define PCA953X_DIR_OUT		0
#define PCA953X_DIR_IN		1

int pca953x_set_val(u8 chip, uint mask, uint data);
int pca953x_set_pol(u8 chip, uint mask, uint data);
int pca953x_set_dir(u8 chip, uint mask, uint data);
int pca953x_get_val(u8 chip);

#endif /* __PCA953X_H_ */