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83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
e92739d3 PT |
2 | /* |
3 | * Copyright 2008 Extreme Engineering Solutions, Inc. | |
e92739d3 PT |
4 | */ |
5 | ||
6 | #ifndef __PCA953X_H_ | |
7 | #define __PCA953X_H_ | |
8 | ||
9 | #define PCA953X_IN 0x00 | |
10 | #define PCA953X_OUT 0x01 | |
11 | #define PCA953X_POL 0x02 | |
12 | #define PCA953X_CONF 0x03 | |
13 | ||
14 | #define PCA953X_OUT_LOW 0 | |
15 | #define PCA953X_OUT_HIGH 1 | |
16 | #define PCA953X_POL_NORMAL 0 | |
17 | #define PCA953X_POL_INVERT 1 | |
18 | #define PCA953X_DIR_OUT 0 | |
19 | #define PCA953X_DIR_IN 1 | |
20 | ||
21 | int pca953x_set_val(u8 chip, uint mask, uint data); | |
22 | int pca953x_set_pol(u8 chip, uint mask, uint data); | |
23 | int pca953x_set_dir(u8 chip, uint mask, uint data); | |
24 | int pca953x_get_val(u8 chip); | |
25 | ||
26 | #endif /* __PCA953X_H_ */ |