blob: 6c2b58c563dd32a8860e48380562c22e5fbd4c8c
1 | /* |
2 | * Copyright 2008 Extreme Engineering Solutions, Inc. |
3 | * |
4 | * This program is free software; you can redistribute it and/or |
5 | * modify it under the terms of the GNU General Public License |
6 | * Version 2 as published by the Free Software Foundation. |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License |
14 | * along with this program; if not, write to the Free Software |
15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
16 | * MA 02111-1307 USA |
17 | */ |
18 | |
19 | #ifndef __PCA953X_H_ |
20 | #define __PCA953X_H_ |
21 | |
22 | #define PCA953X_IN 0x00 |
23 | #define PCA953X_OUT 0x01 |
24 | #define PCA953X_POL 0x02 |
25 | #define PCA953X_CONF 0x03 |
26 | |
27 | #define PCA953X_OUT_LOW 0 |
28 | #define PCA953X_OUT_HIGH 1 |
29 | #define PCA953X_POL_NORMAL 0 |
30 | #define PCA953X_POL_INVERT 1 |
31 | #define PCA953X_DIR_OUT 0 |
32 | #define PCA953X_DIR_IN 1 |
33 | |
34 | int pca953x_set_val(u8 chip, uint mask, uint data); |
35 | int pca953x_set_pol(u8 chip, uint mask, uint data); |
36 | int pca953x_set_dir(u8 chip, uint mask, uint data); |
37 | int pca953x_get_val(u8 chip); |
38 | |
39 | #endif /* __PCA953X_H_ */ |
40 |