diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot-sam460ex/include/pca953x.h | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot-sam460ex/include/pca953x.h')
| -rw-r--r-- | roms/u-boot-sam460ex/include/pca953x.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/roms/u-boot-sam460ex/include/pca953x.h b/roms/u-boot-sam460ex/include/pca953x.h new file mode 100644 index 000000000..6c2b58c56 --- /dev/null +++ b/roms/u-boot-sam460ex/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_ */ |