1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright 2008 Extreme Engineering Solutions, Inc.
9 #define PCA953X_IN 0x00
10 #define PCA953X_OUT 0x01
11 #define PCA953X_POL 0x02
12 #define PCA953X_CONF 0x03
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
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);
26 #endif /* __PCA953X_H_ */