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Diffstat (limited to 'include/linux/map_to_7segment.h')
| -rw-r--r-- | include/linux/map_to_7segment.h | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/include/linux/map_to_7segment.h b/include/linux/map_to_7segment.h deleted file mode 100644 index 12d62a54d470..000000000000 --- a/include/linux/map_to_7segment.h +++ /dev/null @@ -1,187 +0,0 @@ -/* - * Copyright (c) 2005 Henk Vergonet <Henk.Vergonet@gmail.com> - * - * 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; either version 2 of - * the License, or (at your option) any later version. - * - * 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 MAP_TO_7SEGMENT_H -#define MAP_TO_7SEGMENT_H - -/* This file provides translation primitives and tables for the conversion - * of (ASCII) characters to a 7-segments notation. - * - * The 7 segment's wikipedia notation below is used as standard. - * See: http://en.wikipedia.org/wiki/Seven_segment_display - * - * Notation: +-a-+ - * f b - * +-g-+ - * e c - * +-d-+ - * - * Usage: - * - * Register a map variable, and fill it with a character set: - * static SEG7_DEFAULT_MAP(map_seg7); - * - * - * Then use for conversion: - * seg7 = map_to_seg7(&map_seg7, some_char); - * ... - * - * In device drivers it is recommended, if required, to make the char map - * accessible via the sysfs interface using the following scheme: - * - * static ssize_t show_map(struct device *dev, char *buf) { - * memcpy(buf, &map_seg7, sizeof(map_seg7)); - * return sizeof(map_seg7); - * } - * static ssize_t store_map(struct device *dev, const char *buf, size_t cnt) { - * if(cnt != sizeof(map_seg7)) - * return -EINVAL; - * memcpy(&map_seg7, buf, cnt); - * return cnt; - * } - * static DEVICE_ATTR(map_seg7, PERMS_RW, show_map, store_map); - * - * History: - * 2005-05-31 RFC linux-kernel@vger.kernel.org - */ -#include <linux/errno.h> - - -#define BIT_SEG7_A 0 -#define BIT_SEG7_B 1 -#define BIT_SEG7_C 2 -#define BIT_SEG7_D 3 -#define BIT_SEG7_E 4 -#define BIT_SEG7_F 5 -#define BIT_SEG7_G 6 -#define BIT_SEG7_RESERVED 7 - -struct seg7_conversion_map { - unsigned char table[128]; -}; - -static __inline__ int map_to_seg7(struct seg7_conversion_map *map, int c) -{ - return c >= 0 && c < sizeof(map->table) ? map->table[c] : -EINVAL; -} - -#define SEG7_CONVERSION_MAP(_name, _map) \ - struct seg7_conversion_map _name = { .table = { _map } } - -/* - * It is recommended to use a facility that allows user space to redefine - * custom character sets for LCD devices. Please use a sysfs interface - * as described above. - */ -#define MAP_TO_SEG7_SYSFS_FILE "map_seg7" - -/******************************************************************************* - * ASCII conversion table - ******************************************************************************/ - -#define _SEG7(l,a,b,c,d,e,f,g) \ - ( a<<BIT_SEG7_A | b<<BIT_SEG7_B | c<<BIT_SEG7_C | d<<BIT_SEG7_D | \ - e<<BIT_SEG7_E | f<<BIT_SEG7_F | g<<BIT_SEG7_G ) - -#define _MAP_0_32_ASCII_SEG7_NON_PRINTABLE \ - 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, - -#define _MAP_33_47_ASCII_SEG7_SYMBOL \ - _SEG7('!',0,0,0,0,1,1,0), _SEG7('"',0,1,0,0,0,1,0), _SEG7('#',0,1,1,0,1,1,0),\ - _SEG7('$',1,0,1,1,0,1,1), _SEG7('%',0,0,1,0,0,1,0), _SEG7('&',1,0,1,1,1,1,1),\ - _SEG7('\'',0,0,0,0,0,1,0),_SEG7('(',1,0,0,1,1,1,0), _SEG7(')',1,1,1,1,0,0,0),\ - _SEG7('*',0,1,1,0,1,1,1), _SEG7('+',0,1,1,0,0,0,1), _SEG7(',',0,0,0,0,1,0,0),\ - _SEG7('-',0,0,0,0,0,0,1), _SEG7('.',0,0,0,0,1,0,0), _SEG7('/',0,1,0,0,1,0,1), - -#define _MAP_48_57_ASCII_SEG7_NUMERIC \ - _SEG7('0',1,1,1,1,1,1,0), _SEG7('1',0,1,1,0,0,0,0), _SEG7('2',1,1,0,1,1,0,1),\ - _SEG7('3',1,1,1,1,0,0,1), _SEG7('4',0,1,1,0,0,1,1), _SEG7('5',1,0,1,1,0,1,1),\ - _SEG7('6',1,0,1,1,1,1,1), _SEG7('7',1,1,1,0,0,0,0), _SEG7('8',1,1,1,1,1,1,1),\ - _SEG7('9',1,1,1,1,0,1,1), - -#define _MAP_58_64_ASCII_SEG7_SYMBOL \ - _SEG7(':',0,0,0,1,0,0,1), _SEG7(';',0,0,0,1,0,0,1), _SEG7('<',1,0,0,0,0,1,1),\ - _SEG7('=',0,0,0,1,0,0,1), _SEG7('>',1,1,0,0,0,0,1), _SEG7('?',1,1,1,0,0,1,0),\ - _SEG7('@',1,1,0,1,1,1,1), - -#define _MAP_65_90_ASCII_SEG7_ALPHA_UPPR \ - _SEG7('A',1,1,1,0,1,1,1), _SEG7('B',1,1,1,1,1,1,1), _SEG7('C',1,0,0,1,1,1,0),\ - _SEG7('D',1,1,1,1,1,1,0), _SEG7('E',1,0,0,1,1,1,1), _SEG7('F',1,0,0,0,1,1,1),\ - _SEG7('G',1,1,1,1,0,1,1), _SEG7('H',0,1,1,0,1,1,1), _SEG7('I',0,1,1,0,0,0,0),\ - _SEG7('J',0,1,1,1,0,0,0), _SEG7('K',0,1,1,0,1,1,1), _SEG7('L',0,0,0,1,1,1,0),\ - _SEG7('M',1,1,1,0,1,1,0), _SEG7('N',1,1,1,0,1,1,0), _SEG7('O',1,1,1,1,1,1,0),\ - _SEG7('P',1,1,0,0,1,1,1), _SEG7('Q',1,1,1,1,1,1,0), _SEG7('R',1,1,1,0,1,1,1),\ - _SEG7('S',1,0,1,1,0,1,1), _SEG7('T',0,0,0,1,1,1,1), _SEG7('U',0,1,1,1,1,1,0),\ - _SEG7('V',0,1,1,1,1,1,0), _SEG7('W',0,1,1,1,1,1,1), _SEG7('X',0,1,1,0,1,1,1),\ - _SEG7('Y',0,1,1,0,0,1,1), _SEG7('Z',1,1,0,1,1,0,1), - -#define _MAP_91_96_ASCII_SEG7_SYMBOL \ - _SEG7('[',1,0,0,1,1,1,0), _SEG7('\\',0,0,1,0,0,1,1),_SEG7(']',1,1,1,1,0,0,0),\ - _SEG7('^',1,1,0,0,0,1,0), _SEG7('_',0,0,0,1,0,0,0), _SEG7('`',0,1,0,0,0,0,0), - -#define _MAP_97_122_ASCII_SEG7_ALPHA_LOWER \ - _SEG7('A',1,1,1,0,1,1,1), _SEG7('b',0,0,1,1,1,1,1), _SEG7('c',0,0,0,1,1,0,1),\ - _SEG7('d',0,1,1,1,1,0,1), _SEG7('E',1,0,0,1,1,1,1), _SEG7('F',1,0,0,0,1,1,1),\ - _SEG7('G',1,1,1,1,0,1,1), _SEG7('h',0,0,1,0,1,1,1), _SEG7('i',0,0,1,0,0,0,0),\ - _SEG7('j',0,0,1,1,0,0,0), _SEG7('k',0,0,1,0,1,1,1), _SEG7('L',0,0,0,1,1,1,0),\ - _SEG7('M',1,1,1,0,1,1,0), _SEG7('n',0,0,1,0,1,0,1), _SEG7('o',0,0,1,1,1,0,1),\ - _SEG7('P',1,1,0,0,1,1,1), _SEG7('q',1,1,1,0,0,1,1), _SEG7('r',0,0,0,0,1,0,1),\ - _SEG7('S',1,0,1,1,0,1,1), _SEG7('T',0,0,0,1,1,1,1), _SEG7('u',0,0,1,1,1,0,0),\ - _SEG7('v',0,0,1,1,1,0,0), _SEG7('W',0,1,1,1,1,1,1), _SEG7('X',0,1,1,0,1,1,1),\ - _SEG7('y',0,1,1,1,0,1,1), _SEG7('Z',1,1,0,1,1,0,1), - -#define _MAP_123_126_ASCII_SEG7_SYMBOL \ - _SEG7('{',1,0,0,1,1,1,0), _SEG7('|',0,0,0,0,1,1,0), _SEG7('}',1,1,1,1,0,0,0),\ - _SEG7('~',1,0,0,0,0,0,0), - -/* Maps */ - -/* This set tries to map as close as possible to the visible characteristics - * of the ASCII symbol, lowercase and uppercase letters may differ in - * presentation on the display. - */ -#define MAP_ASCII7SEG_ALPHANUM \ - _MAP_0_32_ASCII_SEG7_NON_PRINTABLE \ - _MAP_33_47_ASCII_SEG7_SYMBOL \ - _MAP_48_57_ASCII_SEG7_NUMERIC \ - _MAP_58_64_ASCII_SEG7_SYMBOL \ - _MAP_65_90_ASCII_SEG7_ALPHA_UPPR \ - _MAP_91_96_ASCII_SEG7_SYMBOL \ - _MAP_97_122_ASCII_SEG7_ALPHA_LOWER \ - _MAP_123_126_ASCII_SEG7_SYMBOL - -/* This set tries to map as close as possible to the symbolic characteristics - * of the ASCII character for maximum discrimination. - * For now this means all alpha chars are in lower case representations. - * (This for example facilitates the use of hex numbers with uppercase input.) - */ -#define MAP_ASCII7SEG_ALPHANUM_LC \ - _MAP_0_32_ASCII_SEG7_NON_PRINTABLE \ - _MAP_33_47_ASCII_SEG7_SYMBOL \ - _MAP_48_57_ASCII_SEG7_NUMERIC \ - _MAP_58_64_ASCII_SEG7_SYMBOL \ - _MAP_97_122_ASCII_SEG7_ALPHA_LOWER \ - _MAP_91_96_ASCII_SEG7_SYMBOL \ - _MAP_97_122_ASCII_SEG7_ALPHA_LOWER \ - _MAP_123_126_ASCII_SEG7_SYMBOL - -#define SEG7_DEFAULT_MAP(_name) \ - SEG7_CONVERSION_MAP(_name,MAP_ASCII7SEG_ALPHANUM) - -#endif /* MAP_TO_7SEGMENT_H */ - |