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author | Ben Warren <biggerbadderben@gmail.com> | 2009-01-24 20:44:56 -0800 |
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committer | Ben Warren <biggerbadderben@gmail.com> | 2009-01-24 20:44:56 -0800 |
commit | ef29884b2708a6cce3b77f4ccaeea193d4e02c22 (patch) | |
tree | 2f6a28872ab9f5de9fec7ac878b8801f5f536eec /include/pca953x.h | |
parent | 4cd8ed40615a7d741ef2f09ee53779ec6907b8a6 (diff) | |
parent | 8f86a3636ef88427f880610638e80991adc41896 (diff) | |
download | u-boot-imx-ef29884b2708a6cce3b77f4ccaeea193d4e02c22.zip u-boot-imx-ef29884b2708a6cce3b77f4ccaeea193d4e02c22.tar.gz u-boot-imx-ef29884b2708a6cce3b77f4ccaeea193d4e02c22.tar.bz2 |
Merge git://git.denx.de/u-boot into u-boot
Diffstat (limited to 'include/pca953x.h')
-rw-r--r-- | include/pca953x.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/pca953x.h b/include/pca953x.h new file mode 100644 index 0000000..6c2b58c --- /dev/null +++ b/include/pca953x.h @@ -0,0 +1,39 @@ +/* + * Copyright 2008 Extreme Engineering Solutions, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#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_ */ |