From 8bfe8157cd9fe488d1ee961f200ffa0866322f2c Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Mon, 27 Aug 2012 13:38:44 -0700 Subject: altos: Seven segment display driver Hex numbers and the decimal point. Signed-off-by: Keith Packard --- src/drivers/ao_seven_segment.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 src/drivers/ao_seven_segment.h (limited to 'src/drivers/ao_seven_segment.h') diff --git a/src/drivers/ao_seven_segment.h b/src/drivers/ao_seven_segment.h new file mode 100644 index 00000000..5b29deaf --- /dev/null +++ b/src/drivers/ao_seven_segment.h @@ -0,0 +1,34 @@ +/* + * Copyright © 2012 Keith Packard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * 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 _AO_SEVEN_SEGMENT_H_ +#define _AO_SEVEN_SEGMENT_H_ + +#define AO_SEVEN_SEGMENT_DECIMAL 0x10 + +#define AO_SEVEN_SEGMENT_CLEAR 0xff + +void +ao_seven_segment_set(uint8_t digit, uint8_t value); + +void +ao_seven_segment_clear(void); + +void +ao_seven_segment_init(void); + +#endif /* _AO_SEVEN_SEGMENT_H_ */ -- cgit v1.2.3