2 * (C) Copyright 2003, Li-Pro.Net <www.li-pro.net>
3 * Stephan Linz <linz@li-pro.net>
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 * NIOS PIO based seven segment led support functions
28 #ifndef __DK1S10_SEVENSEG_H__
29 #define __DK1S10_SEVENSEG_H__
31 #ifdef CONFIG_SEVENSEG
35 * |-----------------------|--------|
36 * | controll value | value |
37 * ----------------------------------
39 #define SEVENSEG_RAW (int)(0) /* write out byte value (hex) */
40 #define SEVENSEG_OFF (int)( 1 << 8) /* display switch off */
41 #define SEVENSEG_SET_DPL (int)( 2 << 8) /* set dp low nibble */
42 #define SEVENSEG_SET_DPH (int)( 3 << 8) /* set dp high nibble */
43 #define SEVENSEG_RES_DPL (int)( 4 << 8) /* reset dp low nibble */
44 #define SEVENSEG_RES_DPH (int)( 5 << 8) /* reset dp high nibble */
45 #define SEVENSEG_TOG_DPL (int)( 6 << 8) /* toggle dp low nibble */
46 #define SEVENSEG_TOG_DPH (int)( 7 << 8) /* toggle dp high nibble */
47 #define SEVENSEG_LO (int)( 8 << 8) /* write out low nibble only */
48 #define SEVENSEG_HI (int)( 9 << 8) /* write out high nibble only */
49 #define SEVENSEG_STR (int)(10 << 8) /* write out a string */
51 #define SEVENSEG_MASK_VAL (0xff) /* only used by SEVENSEG_RAW */
52 #define SEVENSEG_MASK_CTRL (~SEVENSEG_MASK_VAL)
54 #ifdef SEVENSEG_DIGIT_HI_LO_EQUAL
56 #define SEVENSEG_DIGITS_0 ( SEVENSEG_DIGIT_A \
62 #define SEVENSEG_DIGITS_1 ( SEVENSEG_DIGIT_B \
64 #define SEVENSEG_DIGITS_2 ( SEVENSEG_DIGIT_A \
69 #define SEVENSEG_DIGITS_3 ( SEVENSEG_DIGIT_A \
74 #define SEVENSEG_DIGITS_4 ( SEVENSEG_DIGIT_B \
78 #define SEVENSEG_DIGITS_5 ( SEVENSEG_DIGIT_A \
83 #define SEVENSEG_DIGITS_6 ( SEVENSEG_DIGIT_A \
89 #define SEVENSEG_DIGITS_7 ( SEVENSEG_DIGIT_A \
92 #define SEVENSEG_DIGITS_8 ( SEVENSEG_DIGIT_A \
99 #define SEVENSEG_DIGITS_9 ( SEVENSEG_DIGIT_A \
105 #define SEVENSEG_DIGITS_A ( SEVENSEG_DIGIT_A \
111 #define SEVENSEG_DIGITS_B ( SEVENSEG_DIGIT_C \
116 #define SEVENSEG_DIGITS_C ( SEVENSEG_DIGIT_D \
119 #define SEVENSEG_DIGITS_D ( SEVENSEG_DIGIT_B \
124 #define SEVENSEG_DIGITS_E ( SEVENSEG_DIGIT_A \
129 #define SEVENSEG_DIGITS_F ( SEVENSEG_DIGIT_A \
134 #else /* !SEVENSEG_DIGIT_HI_LO_EQUAL */
135 #error SEVENSEG: different pin asssignments not supported
138 void sevenseg_set(int value);
140 #endif /* CONFIG_SEVENSEG */
142 #endif /* __DK1S10_SEVENSEG_H__ */