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map_to_7segment.h
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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ /* * 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 */
/home/sudancam/../../usr/include/linux/wimax/../map_to_7segment.h