cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

map_to_14segment.h (9505B)

      1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
      2/*
      3 * Copyright (C) 2021 Glider bv
      4 *
      5 * Based on include/uapi/linux/map_to_7segment.h:
      6
      7 * Copyright (c) 2005 Henk Vergonet <Henk.Vergonet@gmail.com>
      8 */
      9
     10#ifndef MAP_TO_14SEGMENT_H
     11#define MAP_TO_14SEGMENT_H
     12
     13/* This file provides translation primitives and tables for the conversion
     14 * of (ASCII) characters to a 14-segments notation.
     15 *
     16 * The 14 segment's wikipedia notation below is used as standard.
     17 * See: https://en.wikipedia.org/wiki/Fourteen-segment_display
     18 *
     19 * Notation:	+---a---+
     20 *		|\  |  /|
     21 *		f h i j b
     22 *		|  \|/  |
     23 *		+-g1+-g2+
     24 *		|  /|\  |
     25 *		e k l m c
     26 *		|/  |  \|
     27 *		+---d---+
     28 *
     29 * Usage:
     30 *
     31 *   Register a map variable, and fill it with a character set:
     32 *	static SEG14_DEFAULT_MAP(map_seg14);
     33 *
     34 *
     35 *   Then use for conversion:
     36 *	seg14 = map_to_seg14(&map_seg14, some_char);
     37 *	...
     38 *
     39 * In device drivers it is recommended, if required, to make the char map
     40 * accessible via the sysfs interface using the following scheme:
     41 *
     42 * static ssize_t map_seg14_show(struct device *dev,
     43 *				 struct device_attribute *attr, char *buf)
     44 * {
     45 *	memcpy(buf, &map_seg14, sizeof(map_seg14));
     46 *	return sizeof(map_seg14);
     47 * }
     48 * static ssize_t map_seg14_store(struct device *dev,
     49 *				  struct device_attribute *attr,
     50 *				  const char *buf, size_t cnt)
     51 * {
     52 *	if (cnt != sizeof(map_seg14))
     53 *		return -EINVAL;
     54 *	memcpy(&map_seg14, buf, cnt);
     55 *	return cnt;
     56 * }
     57 * static DEVICE_ATTR_RW(map_seg14);
     58 */
     59#include <linux/errno.h>
     60#include <linux/types.h>
     61
     62#include <asm/byteorder.h>
     63
     64#define BIT_SEG14_A		0
     65#define BIT_SEG14_B		1
     66#define BIT_SEG14_C		2
     67#define BIT_SEG14_D		3
     68#define BIT_SEG14_E		4
     69#define BIT_SEG14_F		5
     70#define BIT_SEG14_G1		6
     71#define BIT_SEG14_G2		7
     72#define BIT_SEG14_H		8
     73#define BIT_SEG14_I		9
     74#define BIT_SEG14_J		10
     75#define BIT_SEG14_K		11
     76#define BIT_SEG14_L		12
     77#define BIT_SEG14_M		13
     78#define BIT_SEG14_RESERVED1	14
     79#define BIT_SEG14_RESERVED2	15
     80
     81struct seg14_conversion_map {
     82	__be16 table[128];
     83};
     84
     85static __inline__ int map_to_seg14(struct seg14_conversion_map *map, int c)
     86{
     87	if (c < 0 || c >= sizeof(map->table) / sizeof(map->table[0]))
     88		return -EINVAL;
     89
     90	return __be16_to_cpu(map->table[c]);
     91}
     92
     93#define SEG14_CONVERSION_MAP(_name, _map)	\
     94	struct seg14_conversion_map _name = { .table = { _map } }
     95
     96/*
     97 * It is recommended to use a facility that allows user space to redefine
     98 * custom character sets for LCD devices. Please use a sysfs interface
     99 * as described above.
    100 */
    101#define MAP_TO_SEG14_SYSFS_FILE	"map_seg14"
    102
    103/*******************************************************************************
    104 * ASCII conversion table
    105 ******************************************************************************/
    106
    107#define _SEG14(sym, a, b, c, d, e, f, g1, g2, h, j, k, l, m, n)	\
    108	__cpu_to_be16( a << BIT_SEG14_A  |  b << BIT_SEG14_B  |	\
    109		       c << BIT_SEG14_C  |  d << BIT_SEG14_D  |	\
    110		       e << BIT_SEG14_E  |  f << BIT_SEG14_F  |	\
    111		      g1 << BIT_SEG14_G1 | g2 << BIT_SEG14_G2 |	\
    112		       h << BIT_SEG14_H  |  j << BIT_SEG14_I  |	\
    113		       k << BIT_SEG14_J  |  l << BIT_SEG14_K  |	\
    114		       m << BIT_SEG14_L  |  n << BIT_SEG14_M )
    115
    116#define _MAP_0_32_ASCII_SEG14_NON_PRINTABLE				\
    117	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,
    118
    119#define _MAP_33_47_ASCII_SEG14_SYMBOL				\
    120	_SEG14('!', 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),	\
    121	_SEG14('"', 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0),	\
    122	_SEG14('#', 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0),	\
    123	_SEG14('$', 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0),	\
    124	_SEG14('%', 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0),	\
    125	_SEG14('&', 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1),	\
    126	_SEG14('\'',0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0),	\
    127	_SEG14('(', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1),	\
    128	_SEG14(')', 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0),	\
    129	_SEG14('*', 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1),	\
    130	_SEG14('+', 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0),	\
    131	_SEG14(',', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0),	\
    132	_SEG14('-', 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0),	\
    133	_SEG14('.', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1),	\
    134	_SEG14('/', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0),
    135
    136#define _MAP_48_57_ASCII_SEG14_NUMERIC				\
    137	_SEG14('0', 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0),	\
    138	_SEG14('1', 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0),	\
    139	_SEG14('2', 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0),	\
    140	_SEG14('3', 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0),	\
    141	_SEG14('4', 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0),	\
    142	_SEG14('5', 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1),	\
    143	_SEG14('6', 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0),	\
    144	_SEG14('7', 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0),	\
    145	_SEG14('8', 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0),	\
    146	_SEG14('9', 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0),
    147
    148#define _MAP_58_64_ASCII_SEG14_SYMBOL				\
    149	_SEG14(':', 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0),	\
    150	_SEG14(';', 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0),	\
    151	_SEG14('<', 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1),	\
    152	_SEG14('=', 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0),	\
    153	_SEG14('>', 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0),	\
    154	_SEG14('?', 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0),	\
    155	_SEG14('@', 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 0),
    156
    157#define _MAP_65_90_ASCII_SEG14_ALPHA_UPPER			\
    158	_SEG14('A', 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0),	\
    159	_SEG14('B', 1, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0),	\
    160	_SEG14('C', 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0),	\
    161	_SEG14('D', 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0),	\
    162	_SEG14('E', 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0),	\
    163	_SEG14('F', 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0),	\
    164	_SEG14('G', 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0),	\
    165	_SEG14('H', 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0),	\
    166	_SEG14('I', 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0),	\
    167	_SEG14('J', 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),	\
    168	_SEG14('K', 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1),	\
    169	_SEG14('L', 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0),	\
    170	_SEG14('M', 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0),	\
    171	_SEG14('N', 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1),	\
    172	_SEG14('O', 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0),	\
    173	_SEG14('P', 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0),	\
    174	_SEG14('Q', 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1),	\
    175	_SEG14('R', 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1),	\
    176	_SEG14('S', 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0),	\
    177	_SEG14('T', 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0),	\
    178	_SEG14('U', 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0),	\
    179	_SEG14('V', 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0),	\
    180	_SEG14('W', 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1),	\
    181	_SEG14('X', 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1),	\
    182	_SEG14('Y', 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0),	\
    183	_SEG14('Z', 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0),
    184
    185#define _MAP_91_96_ASCII_SEG14_SYMBOL				\
    186	_SEG14('[', 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0),	\
    187	_SEG14('\\',0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1),	\
    188	_SEG14(']', 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),	\
    189	_SEG14('^', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1),	\
    190	_SEG14('_', 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0),	\
    191	_SEG14('`', 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0),
    192
    193#define _MAP_97_122_ASCII_SEG14_ALPHA_LOWER			\
    194	_SEG14('a', 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0),	\
    195	_SEG14('b', 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1),	\
    196	_SEG14('c', 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0),	\
    197	_SEG14('d', 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0),	\
    198	_SEG14('e', 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0),	\
    199	_SEG14('f', 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0),	\
    200	_SEG14('g', 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0),	\
    201	_SEG14('h', 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0),	\
    202	_SEG14('i', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0),	\
    203	_SEG14('j', 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0),	\
    204	_SEG14('k', 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1),	\
    205	_SEG14('l', 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0),	\
    206	_SEG14('m', 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0),	\
    207	_SEG14('n', 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0),	\
    208	_SEG14('o', 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0),	\
    209	_SEG14('p', 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0),	\
    210	_SEG14('q', 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0),	\
    211	_SEG14('r', 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0),	\
    212	_SEG14('s', 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1),	\
    213	_SEG14('t', 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0),	\
    214	_SEG14('u', 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0),	\
    215	_SEG14('v', 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0),	\
    216	_SEG14('w', 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1),	\
    217	_SEG14('x', 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1),	\
    218	_SEG14('y', 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0),	\
    219	_SEG14('z', 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0),
    220
    221#define _MAP_123_126_ASCII_SEG14_SYMBOL				\
    222	_SEG14('{', 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0),	\
    223	_SEG14('|', 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0),	\
    224	_SEG14('}', 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1),	\
    225	_SEG14('~', 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0),
    226
    227/* Maps */
    228#define MAP_ASCII14SEG_ALPHANUM			\
    229	_MAP_0_32_ASCII_SEG14_NON_PRINTABLE	\
    230	_MAP_33_47_ASCII_SEG14_SYMBOL		\
    231	_MAP_48_57_ASCII_SEG14_NUMERIC		\
    232	_MAP_58_64_ASCII_SEG14_SYMBOL		\
    233	_MAP_65_90_ASCII_SEG14_ALPHA_UPPER	\
    234	_MAP_91_96_ASCII_SEG14_SYMBOL		\
    235	_MAP_97_122_ASCII_SEG14_ALPHA_LOWER	\
    236	_MAP_123_126_ASCII_SEG14_SYMBOL
    237
    238#define SEG14_DEFAULT_MAP(_name)		\
    239	SEG14_CONVERSION_MAP(_name, MAP_ASCII14SEG_ALPHANUM)
    240
    241#endif	/* MAP_TO_14SEGMENT_H */