2 * Copyright © 2012 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
19 #include <ao_seven_segment.h>
20 #include <ao_lcd_stm.h>
37 #ifndef SEVEN_SEGMENT_DEBUG
38 #define SEVEN_SEGMENT_DEBUG 0
41 static const uint8_t ao_segments[] = {
172 ao_seven_segment_set(uint8_t digit, uint8_t value)
177 if (value == AO_SEVEN_SEGMENT_CLEAR)
180 segments = ao_segments[value & 0xf];
182 /* Check for decimal point */
184 segments |= (1 << 7);
187 for (s = 0; s <= 7; s++)
188 ao_lcd_set(digit, s, !!(segments & (1 << s)));
193 ao_seven_segment_clear(void)
199 #if SEVEN_SEGMENT_DEBUG
201 ao_seven_segment_show(void)
203 uint8_t digit, value;
205 digit = ao_cmd_lex_i;
207 value = ao_cmd_lex_i;
208 ao_seven_segment_set(digit, value);
212 static const struct ao_cmds ao_seven_segment_cmds[] = {
213 { ao_seven_segment_show, "S <digit> <value>\0Set LCD digit" },
219 ao_seven_segment_init(void)
221 #if SEVEN_SEGMENT_DEBUG
222 ao_cmd_register(ao_seven_segment_cmds);