Failed to save the file to the "xx" directory.

Failed to save the file to the "ll" directory.

Failed to save the file to the "mm" directory.

Failed to save the file to the "wp" directory.

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Current File : /proc/thread-self/root/usr/include/linux/map_to_7segment.h
/* 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 */

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