| Start/ | End/ | |||
| True | False | - | Line | Source |
| 1 | /* | |||
| 2 | * consolemap.c | |||
| 3 | * | |||
| 4 | * Mapping from internal code (such as Latin-1 or Unicode or IBM PC code) | |||
| 5 | * to font positions. | |||
| 6 | * | |||
| 7 | * aeb, 950210 | |||
| 8 | * | |||
| 9 | * Support for multiple unimaps by Jakub Jelinek <jj@ultra.linux.cz>, July 1998 | |||
| 10 | * | |||
| 11 | * Fix bug in inverse translation. Stanislav Voronyi <stas@cnti.uanet.kharkov.ua>, Dec 1998 | |||
| 12 | */ | |||
| 13 | ||||
| 14 | #include <linux/config.h> | |||
| 15 | #include <linux/module.h> | |||
| 16 | #include <linux/kd.h> | |||
| 17 | #include <linux/errno.h> | |||
| 18 | #include <linux/mm.h> | |||
| 19 | #include <linux/slab.h> | |||
| 20 | #include <linux/init.h> | |||
| 21 | #include <linux/tty.h> | |||
| 22 | #include <asm/uaccess.h> | |||
| 23 | #include <linux/consolemap.h> | |||
| 24 | #include <linux/vt_kern.h> | |||
| 25 | ||||
| 26 | static unsigned short translations[][256] = { | |||
| 27 | /* 8-bit Latin-1 mapped to Unicode -- trivial mapping */ | |||
| 28 | { | |||
| 29 | 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, | |||
| 30 | 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f, | |||
| 31 | 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, | |||
| 32 | 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x001f, | |||
| 33 | 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, | |||
| 34 | 0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x002f, | |||
| 35 | 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, | |||
| 36 | 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f, | |||
| 37 | 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, | |||
| 38 | 0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f, | |||
| 39 | 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, | |||
| 40 | 0x0058, 0x0059, 0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f, | |||
| 41 | 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, | |||
| 42 | 0x0068, 0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f, | |||
| 43 | 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, | |||
| 44 | 0x0078, 0x0079, 0x007a, 0x007b, 0x007c, 0x007d, 0x007e, 0x007f, | |||
| 45 | 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087, | |||
| 46 | 0x0088, 0x0089, 0x008a, 0x008b, 0x008c, 0x008d, 0x008e, 0x008f, | |||
| 47 | 0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097, | |||
| 48 | 0x0098, 0x0099, 0x009a, 0x009b, 0x009c, 0x009d, 0x009e, 0x009f, | |||
| 49 | 0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7, | |||
| 50 | 0x00a8, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x00af, | |||
| 51 | 0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x00b4, 0x00b5, 0x00b6, 0x00b7, | |||
| 52 | 0x00b8, 0x00b9, 0x00ba, 0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf, | |||
| 53 | 0x00c0, 0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5, 0x00c6, 0x00c7, | |||
| 54 | 0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x00cc, 0x00cd, 0x00ce, 0x00cf, | |||
| 55 | 0x00d0, 0x00d1, 0x00d2, 0x00d3, 0x00d4, 0x00d5, 0x00d6, 0x00d7, | |||
| 56 | 0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x00dd, 0x00de, 0x00df, | |||
| 57 | 0x00e0, 0x00e1, 0x00e2, 0x00e3, 0x00e4, 0x00e5, 0x00e6, 0x00e7, | |||
| 58 | 0x00e8, 0x00e9, 0x00ea, 0x00eb, 0x00ec, 0x00ed, 0x00ee, 0x00ef, | |||
| 59 | 0x00f0, 0x00f1, 0x00f2, 0x00f3, 0x00f4, 0x00f5, 0x00f6, 0x00f7, | |||
| 60 | 0x00f8, 0x00f9, 0x00fa, 0x00fb, 0x00fc, 0x00fd, 0x00fe, 0x00ff | |||
| 61 | }, | |||
| 62 | /* VT100 graphics mapped to Unicode */ | |||
| 63 | { | |||
| 64 | 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, | |||
| 65 | 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f, | |||
| 66 | 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, | |||
| 67 | 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x001f, | |||
| 68 | 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, | |||
| 69 | 0x0028, 0x0029, 0x002a, 0x2192, 0x2190, 0x2191, 0x2193, 0x002f, | |||
| 70 | 0x2588, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, | |||
| 71 | 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f, | |||
| 72 | 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, | |||
| 73 | 0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f, | |||
| 74 | 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, | |||
| 75 | 0x0058, 0x0059, 0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x00a0, | |||
| 76 | 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, | |||
| 77 | 0x2591, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, | |||
| 78 | 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, | |||
| 79 | 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, 0x007f, | |||
| 80 | 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087, | |||
| 81 | 0x0088, 0x0089, 0x008a, 0x008b, 0x008c, 0x008d, 0x008e, 0x008f, | |||
| 82 | 0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097, | |||
| 83 | 0x0098, 0x0099, 0x009a, 0x009b, 0x009c, 0x009d, 0x009e, 0x009f, | |||
| 84 | 0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7, | |||
| 85 | 0x00a8, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x00af, | |||
| 86 | 0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x00b4, 0x00b5, 0x00b6, 0x00b7, | |||
| 87 | 0x00b8, 0x00b9, 0x00ba, 0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf, | |||
| 88 | 0x00c0, 0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5, 0x00c6, 0x00c7, | |||
| 89 | 0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x00cc, 0x00cd, 0x00ce, 0x00cf, | |||
| 90 | 0x00d0, 0x00d1, 0x00d2, 0x00d3, 0x00d4, 0x00d5, 0x00d6, 0x00d7, | |||
| 91 | 0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x00dd, 0x00de, 0x00df, | |||
| 92 | 0x00e0, 0x00e1, 0x00e2, 0x00e3, 0x00e4, 0x00e5, 0x00e6, 0x00e7, | |||
| 93 | 0x00e8, 0x00e9, 0x00ea, 0x00eb, 0x00ec, 0x00ed, 0x00ee, 0x00ef, | |||
| 94 | 0x00f0, 0x00f1, 0x00f2, 0x00f3, 0x00f4, 0x00f5, 0x00f6, 0x00f7, | |||
| 95 | 0x00f8, 0x00f9, 0x00fa, 0x00fb, 0x00fc, 0x00fd, 0x00fe, 0x00ff | |||
| 96 | }, | |||
| 97 | /* IBM Codepage 437 mapped to Unicode */ | |||
| 98 | { | |||
| 99 | 0x0000, 0x263a, 0x263b, 0x2665, 0x2666, 0x2663, 0x2660, 0x2022, | |||
| 100 | 0x25d8, 0x25cb, 0x25d9, 0x2642, 0x2640, 0x266a, 0x266b, 0x263c, | |||
| 101 | 0x25b6, 0x25c0, 0x2195, 0x203c, 0x00b6, 0x00a7, 0x25ac, 0x21a8, | |||
| 102 | 0x2191, 0x2193, 0x2192, 0x2190, 0x221f, 0x2194, 0x25b2, 0x25bc, | |||
| 103 | 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, | |||
| 104 | 0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x002f, | |||
| 105 | 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, | |||
| 106 | 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f, | |||
| 107 | 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047, | |||
| 108 | 0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f, | |||
| 109 | 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057, | |||
| 110 | 0x0058, 0x0059, 0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f, | |||
| 111 | 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, | |||
| 112 | 0x0068, 0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f, | |||
| 113 | 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, | |||
| 114 | 0x0078, 0x0079, 0x007a, 0x007b, 0x007c, 0x007d, 0x007e, 0x2302, | |||
| 115 | 0x00c7, 0x00fc, 0x00e9, 0x00e2, 0x00e4, 0x00e0, 0x00e5, 0x00e7, | |||
| 116 | 0x00ea, 0x00eb, 0x00e8, 0x00ef, 0x00ee, 0x00ec, 0x00c4, 0x00c5, | |||
| 117 | 0x00c9, 0x00e6, 0x00c6, 0x00f4, 0x00f6, 0x00f2, 0x00fb, 0x00f9, | |||
| 118 | 0x00ff, 0x00d6, 0x00dc, 0x00a2, 0x00a3, 0x00a5, 0x20a7, 0x0192, | |||
| 119 | 0x00e1, 0x00ed, 0x00f3, 0x00fa, 0x00f1, 0x00d1, 0x00aa, 0x00ba, | |||
| 120 | 0x00bf, 0x2310, 0x00ac, 0x00bd, 0x00bc, 0x00a1, 0x00ab, 0x00bb, | |||
| 121 | 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556, | |||
| 122 | 0x2555, 0x2563, 0x2551, 0x2557, 0x255d, 0x255c, 0x255b, 0x2510, | |||
| 123 | 0x2514, 0x2534, 0x252c, 0x251c, 0x2500, 0x253c, 0x255e, 0x255f, | |||
| 124 | 0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256c, 0x2567, | |||
| 125 | 0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256b, | |||
| 126 | 0x256a, 0x2518, 0x250c, 0x2588, 0x2584, 0x258c, 0x2590, 0x2580, | |||
| 127 | 0x03b1, 0x00df, 0x0393, 0x03c0, 0x03a3, 0x03c3, 0x00b5, 0x03c4, | |||
| 128 | 0x03a6, 0x0398, 0x03a9, 0x03b4, 0x221e, 0x03c6, 0x03b5, 0x2229, | |||
| 129 | 0x2261, 0x00b1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00f7, 0x2248, | |||
| 130 | 0x00b0, 0x2219, 0x00b7, 0x221a, 0x207f, 0x00b2, 0x25a0, 0x00a0 | |||
| 131 | }, | |||
| 132 | /* User mapping -- default to codes for direct font mapping */ | |||
| 133 | { | |||
| 134 | 0xf000, 0xf001, 0xf002, 0xf003, 0xf004, 0xf005, 0xf006, 0xf007, | |||
| 135 | 0xf008, 0xf009, 0xf00a, 0xf00b, 0xf00c, 0xf00d, 0xf00e, 0xf00f, | |||
| 136 | 0xf010, 0xf011, 0xf012, 0xf013, 0xf014, 0xf015, 0xf016, 0xf017, | |||
| 137 | 0xf018, 0xf019, 0xf01a, 0xf01b, 0xf01c, 0xf01d, 0xf01e, 0xf01f, | |||
| 138 | 0xf020, 0xf021, 0xf022, 0xf023, 0xf024, 0xf025, 0xf026, 0xf027, | |||
| 139 | 0xf028, 0xf029, 0xf02a, 0xf02b, 0xf02c, 0xf02d, 0xf02e, 0xf02f, | |||
| 140 | 0xf030, 0xf031, 0xf032, 0xf033, 0xf034, 0xf035, 0xf036, 0xf037, | |||
| 141 | 0xf038, 0xf039, 0xf03a, 0xf03b, 0xf03c, 0xf03d, 0xf03e, 0xf03f, | |||
| 142 | 0xf040, 0xf041, 0xf042, 0xf043, 0xf044, 0xf045, 0xf046, 0xf047, | |||
| 143 | 0xf048, 0xf049, 0xf04a, 0xf04b, 0xf04c, 0xf04d, 0xf04e, 0xf04f, | |||
| 144 | 0xf050, 0xf051, 0xf052, 0xf053, 0xf054, 0xf055, 0xf056, 0xf057, | |||
| 145 | 0xf058, 0xf059, 0xf05a, 0xf05b, 0xf05c, 0xf05d, 0xf05e, 0xf05f, | |||
| 146 | 0xf060, 0xf061, 0xf062, 0xf063, 0xf064, 0xf065, 0xf066, 0xf067, | |||
| 147 | 0xf068, 0xf069, 0xf06a, 0xf06b, 0xf06c, 0xf06d, 0xf06e, 0xf06f, | |||
| 148 | 0xf070, 0xf071, 0xf072, 0xf073, 0xf074, 0xf075, 0xf076, 0xf077, | |||
| 149 | 0xf078, 0xf079, 0xf07a, 0xf07b, 0xf07c, 0xf07d, 0xf07e, 0xf07f, | |||
| 150 | 0xf080, 0xf081, 0xf082, 0xf083, 0xf084, 0xf085, 0xf086, 0xf087, | |||
| 151 | 0xf088, 0xf089, 0xf08a, 0xf08b, 0xf08c, 0xf08d, 0xf08e, 0xf08f, | |||
| 152 | 0xf090, 0xf091, 0xf092, 0xf093, 0xf094, 0xf095, 0xf096, 0xf097, | |||
| 153 | 0xf098, 0xf099, 0xf09a, 0xf09b, 0xf09c, 0xf09d, 0xf09e, 0xf09f, | |||
| 154 | 0xf0a0, 0xf0a1, 0xf0a2, 0xf0a3, 0xf0a4, 0xf0a5, 0xf0a6, 0xf0a7, | |||
| 155 | 0xf0a8, 0xf0a9, 0xf0aa, 0xf0ab, 0xf0ac, 0xf0ad, 0xf0ae, 0xf0af, | |||
| 156 | 0xf0b0, 0xf0b1, 0xf0b2, 0xf0b3, 0xf0b4, 0xf0b5, 0xf0b6, 0xf0b7, | |||
| 157 | 0xf0b8, 0xf0b9, 0xf0ba, 0xf0bb, 0xf0bc, 0xf0bd, 0xf0be, 0xf0bf, | |||
| 158 | 0xf0c0, 0xf0c1, 0xf0c2, 0xf0c3, 0xf0c4, 0xf0c5, 0xf0c6, 0xf0c7, | |||
| 159 | 0xf0c8, 0xf0c9, 0xf0ca, 0xf0cb, 0xf0cc, 0xf0cd, 0xf0ce, 0xf0cf, | |||
| 160 | 0xf0d0, 0xf0d1, 0xf0d2, 0xf0d3, 0xf0d4, 0xf0d5, 0xf0d6, 0xf0d7, | |||
| 161 | 0xf0d8, 0xf0d9, 0xf0da, 0xf0db, 0xf0dc, 0xf0dd, 0xf0de, 0xf0df, | |||
| 162 | 0xf0e0, 0xf0e1, 0xf0e2, 0xf0e3, 0xf0e4, 0xf0e5, 0xf0e6, 0xf0e7, | |||
| 163 | 0xf0e8, 0xf0e9, 0xf0ea, 0xf0eb, 0xf0ec, 0xf0ed, 0xf0ee, 0xf0ef, | |||
| 164 | 0xf0f0, 0xf0f1, 0xf0f2, 0xf0f3, 0xf0f4, 0xf0f5, 0xf0f6, 0xf0f7, | |||
| 165 | 0xf0f8, 0xf0f9, 0xf0fa, 0xf0fb, 0xf0fc, 0xf0fd, 0xf0fe, 0xf0ff | |||
| 166 | } | |||
| 167 | }; | |||
| 168 | ||||
| 169 | /* The standard kernel character-to-font mappings are not invertible | |||
| 170 | -- this is just a best effort. */ | |||
| 171 | ||||
| 172 | #define MAX_GLYPH 512 /* Max possible glyph value */ | |||
| 173 | ||||
| 174 | static int inv_translate[MAX_NR_CONSOLES]; | |||
| 175 | ||||
| 176 | struct uni_pagedir { | |||
| 177 | u16 **uni_pgdir[32]; | |||
| 178 | unsigned long refcount; | |||
| 179 | unsigned long sum; | |||
| 180 | unsigned char *inverse_translations[4]; | |||
| 181 | int readonly; | |||
| 182 | }; | |||
| 183 | ||||
| 184 | static struct uni_pagedir *dflt; | |||
| 185 | ||||
| 48 | 48 | 186 | static void set_inverse_transl(struct vc_data *conp, struct uni_pagedir *p, int i) | |
| 187 | { | |||
| 188 | int j, glyph; | |||
| 189 | unsigned short *t = translations[i]; | |||
| 190 | unsigned char *q; | |||
| 191 | ||||
| 0 | 48 | - | 192 | if (!p) return; |
| 0 | - | 192 | return | |
| 193 | q = p->inverse_translations[i]; | |||
| 194 | ||||
| 48 | 0 | - | 195 | if (!q) { |
| 196 | q = p->inverse_translations[i] = (unsigned char *) | |||
| 197 | kmalloc(MAX_GLYPH, GFP_KERNEL); | |||
| 0 | 48 | - | 198 | if (!q) return; |
| 0 | - | 198 | return | |
| 199 | } | |||
| 200 | memset(q, 0, MAX_GLYPH); | |||
| 201 | ||||
| 12288 | 48 | 202 | for (j = 0; j < E_TABSZ; j++) { | |
| 203 | glyph = conv_uni_to_pc(conp, t[j]); | |||
| 9612 | 2676 | 204 | if (glyph >= 0 && glyph < MAX_GLYPH && q[glyph] < 32) { | |
| 9612 | 204 | T && T && T | ||
| 360 | 204 | T && T && F | ||
| 0 | - | 204 | T && F && _ | |
| 2316 | 204 | F && _ && _ | ||
| 205 | /* prefer '-' above SHY etc. */ | |||
| 206 | q[glyph] = j; | |||
| 207 | } | |||
| 208 | } | |||
| 209 | } | |||
| 210 | ||||
| 67 | 0 | 211 | unsigned short *set_translate(int m, struct vc_data *vc) | |
| 212 | { | |||
| 213 | inv_translate[vc->vc_num] = m; | |||
| 67 | 214 | return translations[m]; | ||
| 215 | } | |||
| 216 | ||||
| 217 | /* | |||
| 218 | * Inverse translation is impossible for several reasons: | |||
| 219 | * 1. The font<->character maps are not 1-1. | |||
| 220 | * 2. The text may have been written while a different translation map | |||
| 221 | * was active, or using Unicode. | |||
| 222 | * Still, it is now possible to a certain extent to cut and paste non-ASCII. | |||
| 223 | */ | |||
| 0 | 0 | - | 224 | unsigned char inverse_translate(struct vc_data *conp, int glyph) |
| 225 | { | |||
| 226 | struct uni_pagedir *p; | |||
| 0 | 0 | - | 227 | if (glyph < 0 || glyph >= MAX_GLYPH) |
| 0 | - | 227 | T || _ | |
| 0 | - | 227 | F || T | |
| 0 | - | 227 | F || F | |
| 0 | - | 228 | return 0; | |
| 229 | else if (!(p = (struct uni_pagedir *)*conp->vc_uni_pagedir_loc) || | |||
| 0 | 0 | - | 230 | !p->inverse_translations[inv_translate[conp->vc_num]]) |
| 0 | - | 230 | !(T) || T | |
| 0 | - | 230 | !(F) || _ | |
| 0 | - | 230 | !(T) || F | |
| 0 | - | 231 | return glyph; | |
| 232 | else | |||
| 0 | - | 233 | return p->inverse_translations[inv_translate[conp->vc_num]][glyph]; | |
| 234 | } | |||
| 235 | ||||
| 0 | 0 | - | 236 | static void update_user_maps(void) |
| 237 | { | |||
| 238 | int i; | |||
| 239 | struct uni_pagedir *p, *q = NULL; | |||
| 240 | ||||
| 0 | 0 | - | 241 | for (i = 0; i < MAX_NR_CONSOLES; i++) { |
| 0 | 0 | - | 242 | if (!vc_cons_allocated(i)) |
| 0 | - | 243 | continue; | |
| 244 | p = (struct uni_pagedir *)*vc_cons[i].d->vc_uni_pagedir_loc; | |||
| 0 | 0 | - | 245 | if (p && p != q) { |
| 0 | - | 245 | T && T | |
| 0 | - | 245 | T && F | |
| 0 | - | 245 | F && _ | |
| 246 | set_inverse_transl(vc_cons[i].d, p, USER_MAP); | |||
| 247 | q = p; | |||
| 248 | } | |||
| 249 | } | |||
| 250 | } | |||
| 251 | ||||
| 252 | /* | |||
| 253 | * Load customizable translation table | |||
| 254 | * arg points to a 256 byte translation table. | |||
| 255 | * | |||
| 256 | * The "old" variants are for translation directly to font (using the | |||
| 257 | * 0xf000-0xf0ff "transparent" Unicodes) whereas the "new" variants set | |||
| 258 | * Unicodes explicitly. | |||
| 259 | */ | |||
| 0 | 0 | - | 260 | int con_set_trans_old(unsigned char __user * arg) |
| 261 | { | |||
| 262 | int i; | |||
| 263 | unsigned short *p = translations[USER_MAP]; | |||
| 264 | ||||
| 0 | 0 | - | 265 | if (!access_ok(VERIFY_READ, arg, E_TABSZ)) |
| 0 | - | 266 | return -EFAULT; | |
| 267 | ||||
| 0 | 0 | - | 268 | for (i=0; i<E_TABSZ ; i++) { |
| 269 | unsigned char uc; | |||
| 270 | __get_user(uc, arg+i); | |||
| 271 | p[i] = UNI_DIRECT_BASE | uc; | |||
| 272 | } | |||
| 273 | ||||
| 274 | update_user_maps(); | |||
| 0 | - | 275 | return 0; | |
| 276 | } | |||
| 277 | ||||
| 0 | 0 | - | 278 | int con_get_trans_old(unsigned char __user * arg) |
| 279 | { | |||
| 280 | int i, ch; | |||
| 281 | unsigned short *p = translations[USER_MAP]; | |||
| 282 | ||||
| 0 | 0 | - | 283 | if (!access_ok(VERIFY_WRITE, arg, E_TABSZ)) |
| 0 | - | 284 | return -EFAULT; | |
| 285 | ||||
| 0 | 0 | - | 286 | for (i=0; i<E_TABSZ ; i++) |
| 287 | { | |||
| 288 | ch = conv_uni_to_pc(vc_cons[fg_console].d, p[i]); | |||
| 289 | __put_user((ch & ~0xff) ? 0 : ch, arg+i); | |||
| 290 | } | |||
| 0 | - | 291 | return 0; | |
| 292 | } | |||
| 293 | ||||
| 0 | 0 | - | 294 | int con_set_trans_new(ushort __user * arg) |
| 295 | { | |||
| 296 | int i; | |||
| 297 | unsigned short *p = translations[USER_MAP]; | |||
| 298 | ||||
| 0 | 0 | - | 299 | if (!access_ok(VERIFY_READ, arg, E_TABSZ*sizeof(unsigned short))) |
| 0 | - | 300 | return -EFAULT; | |
| 301 | ||||
| 0 | 0 | - | 302 | for (i=0; i<E_TABSZ ; i++) { |
| 303 | unsigned short us; | |||
| 304 | __get_user(us, arg+i); | |||
| 305 | p[i] = us; | |||
| 306 | } | |||
| 307 | ||||
| 308 | update_user_maps(); | |||
| 0 | - | 309 | return 0; | |
| 310 | } | |||
| 311 | ||||
| 0 | 0 | - | 312 | int con_get_trans_new(ushort __user * arg) |
| 313 | { | |||
| 314 | int i; | |||
| 315 | unsigned short *p = translations[USER_MAP]; | |||
| 316 | ||||
| 0 | 0 | - | 317 | if (!access_ok(VERIFY_WRITE, arg, E_TABSZ*sizeof(unsigned short))) |
| 0 | - | 318 | return -EFAULT; | |
| 319 | ||||
| 0 | 0 | - | 320 | for (i=0; i<E_TABSZ ; i++) |
| 321 | __put_user(p[i], arg+i); | |||
| 322 | ||||
| 0 | - | 323 | return 0; | |
| 324 | } | |||
| 325 | ||||
| 326 | /* | |||
| 327 | * Unicode -> current font conversion | |||
| 328 | * | |||
| 329 | * A font has at most 512 chars, usually 256. | |||
| 330 | * But one font position may represent several Unicode chars. | |||
| 331 | * A hashtable is somewhat of a pain to deal with, so use a | |||
| 332 | * "paged table" instead. Simulation has shown the memory cost of | |||
| 333 | * this 3-level paged table scheme to be comparable to a hash table. | |||
| 334 | */ | |||
| 335 | ||||
| 336 | extern u8 dfont_unicount[]; /* Defined in console_defmap.c */ | |||
| 337 | extern u16 dfont_unitable[]; | |||
| 338 | ||||
| 60 | 60 | 339 | static void con_release_unimap(struct uni_pagedir *p) | |
| 340 | { | |||
| 341 | u16 **p1; | |||
| 342 | int i, j; | |||
| 343 | ||||
| 0 | 60 | - | 344 | if (p == dflt) dflt = NULL; |
| 1920 | 60 | 345 | for (i = 0; i < 32; i++) { | |
| 120 | 1800 | 346 | if ((p1 = p->uni_pgdir[i]) != NULL) { | |
| 3840 | 120 | 347 | for (j = 0; j < 32; j++) | |
| 348 | kfree(p1[j]); | |||
| 349 | kfree(p1); | |||
| 350 | } | |||
| 351 | p->uni_pgdir[i] = NULL; | |||
| 352 | } | |||
| 240 | 60 | 353 | for (i = 0; i < 4; i++) { | |
| 354 | kfree(p->inverse_translations[i]); | |||
| 355 | p->inverse_translations[i] = NULL; | |||
| 356 | } | |||
| 357 | } | |||
| 358 | ||||
| 73 | 0 | 359 | void con_free_unimap(struct vc_data *vc) | |
| 360 | { | |||
| 361 | struct uni_pagedir *p; | |||
| 362 | ||||
| 363 | p = (struct uni_pagedir *)*vc->vc_uni_pagedir_loc; | |||
| 73 | 0 | - | 364 | if (!p) |
| 73 | 365 | return; | ||
| 366 | *vc->vc_uni_pagedir_loc = 0; | |||
| 0 | 0 | - | 367 | if (--p->refcount) |
| 0 | - | 368 | return; | |
| 369 | con_release_unimap(p); | |||
| 370 | kfree(p); | |||
| 371 | } | |||
| 372 | ||||
| 72 | 0 | 373 | static int con_unify_unimap(struct vc_data *conp, struct uni_pagedir *p) | |
| 374 | { | |||
| 375 | int i, j, k; | |||
| 376 | struct uni_pagedir *q; | |||
| 377 | ||||
| 816 | 12 | 378 | for (i = 0; i < MAX_NR_CONSOLES; i++) { | |
| 684 | 132 | 379 | if (!vc_cons_allocated(i)) | |
| 684 | 380 | continue; | ||
| 381 | q = (struct uni_pagedir *)*vc_cons[i].d->vc_uni_pagedir_loc; | |||
| 72 | 60 | 382 | if (!q || q == p || q->sum != p->sum) | |
| 0 | - | 382 | T || _ || _ | |
| 12 | 382 | F || T || _ | ||
| 60 | 382 | F || F || T | ||
| 60 | 382 | F || F || F | ||
| 72 | 383 | continue; | ||
| 1920 | 60 | 384 | for (j = 0; j < 32; j++) { | |
| 385 | u16 **p1, **q1; | |||
| 386 | p1 = p->uni_pgdir[j]; q1 = q->uni_pgdir[j]; | |||
| 1800 | 120 | 387 | if (!p1 && !q1) | |
| 1800 | 387 | T && T | ||
| 0 | - | 387 | T && F | |
| 120 | 387 | F && _ | ||
| 1800 | 388 | continue; | ||
| 0 | 120 | - | 389 | if (!p1 || !q1) |
| 0 | - | 389 | T || _ | |
| 0 | - | 389 | F || T | |
| 120 | 389 | F || F | ||
| 0 | - | 390 | break; | |
| 3840 | 120 | 391 | for (k = 0; k < 32; k++) { | |
| 2520 | 1320 | 392 | if (!p1[k] && !q1[k]) | |
| 2520 | 392 | T && T | ||
| 0 | - | 392 | T && F | |
| 1320 | 392 | F && _ | ||
| 2520 | 393 | continue; | ||
| 0 | 1320 | - | 394 | if (!p1[k] || !q1[k]) |
| 0 | - | 394 | T || _ | |
| 0 | - | 394 | F || T | |
| 1320 | 394 | F || F | ||
| 0 | - | 395 | break; | |
| 0 | 1320 | - | 396 | if (memcmp(p1[k], q1[k], 64*sizeof(u16))) |
| 0 | - | 397 | break; | |
| 398 | } | |||
| 0 | 120 | - | 399 | if (k < 32) |
| 0 | - | 400 | break; | |
| 401 | } | |||
| 60 | 0 | - | 402 | if (j == 32) { |
| 403 | q->refcount++; | |||
| 404 | *conp->vc_uni_pagedir_loc = (unsigned long)q; | |||
| 405 | con_release_unimap(p); | |||
| 406 | kfree(p); | |||
| 60 | 407 | return 1; | ||
| 408 | } | |||
| 409 | } | |||
| 12 | 410 | return 0; | ||
| 411 | } | |||
| 412 | ||||
| 413 | static int | |||
| 19542 | 0 | 414 | con_insert_unipair(struct uni_pagedir *p, u_short unicode, u_short fontpos) | |
| 415 | { | |||
| 416 | int i, n; | |||
| 417 | u16 **p1, *p2; | |||
| 418 | ||||
| 150 | 19392 | 419 | if (!(p1 = p->uni_pgdir[n = unicode >> 11])) { | |
| 420 | p1 = p->uni_pgdir[n] = kmalloc(32*sizeof(u16 *), GFP_KERNEL); | |||
| 0 | 150 | - | 421 | if (!p1) return -ENOMEM; |
| 0 | - | 421 | return - 12 | |
| 4800 | 150 | 422 | for (i = 0; i < 32; i++) | |
| 423 | p1[i] = NULL; | |||
| 424 | } | |||
| 425 | ||||
| 1596 | 17946 | 426 | if (!(p2 = p1[n = (unicode >> 6) & 0x1f])) { | |
| 427 | p2 = p1[n] = kmalloc(64*sizeof(u16), GFP_KERNEL); | |||
| 0 | 1596 | - | 428 | if (!p2) return -ENOMEM; |
| 0 | - | 428 | return - 12 | |
| 429 | memset(p2, 0xff, 64*sizeof(u16)); /* No glyphs for the characters (yet) */ | |||
| 430 | } | |||
| 431 | ||||
| 432 | p2[unicode & 0x3f] = fontpos; | |||
| 433 | ||||
| 434 | p->sum += (fontpos << 20) + unicode; | |||
| 435 | ||||
| 19542 | 436 | return 0; | ||
| 437 | } | |||
| 438 | ||||
| 439 | /* ui is a leftover from using a hashtable, but might be used again */ | |||
| 72 | 0 | 440 | int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui) | |
| 441 | { | |||
| 442 | struct uni_pagedir *p, *q; | |||
| 443 | ||||
| 444 | p = (struct uni_pagedir *)*vc->vc_uni_pagedir_loc; | |||
| 0 | 72 | - | 445 | if (p && p->readonly) return -EIO; |
| 0 | - | 445 | T && T | |
| 66 | 445 | T && F | ||
| 6 | 445 | F && _ | ||
| 0 | - | 445 | return - 5 | |
| 72 | 0 | - | 446 | if (!p || --p->refcount) { |
| 6 | 446 | T || _ | ||
| 66 | 446 | F || T | ||
| 0 | - | 446 | F || F | |
| 447 | q = (struct uni_pagedir *)kmalloc(sizeof(*p), GFP_KERNEL); | |||
| 0 | 72 | - | 448 | if (!q) { |
| 0 | 0 | - | 449 | if (p) p->refcount++; |
| 0 | - | 450 | return -ENOMEM; | |
| 451 | } | |||
| 452 | memset(q, 0, sizeof(*q)); | |||
| 453 | q->refcount=1; | |||
| 454 | *vc->vc_uni_pagedir_loc = (unsigned long)q; | |||
| 455 | } else { | |||
| 0 | 0 | - | 456 | if (p == dflt) dflt = NULL; |
| 457 | p->refcount++; | |||
| 458 | p->sum = 0; | |||
| 459 | con_release_unimap(p); | |||
| 460 | } | |||
| 72 | 461 | return 0; | ||
| 462 | } | |||
| 463 | ||||
| 66 | 0 | 464 | int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list) | |
| 465 | { | |||
| 466 | int err = 0, err1, i; | |||
| 467 | struct uni_pagedir *p, *q; | |||
| 468 | ||||
| 469 | p = (struct uni_pagedir *)*vc->vc_uni_pagedir_loc; | |||
| 0 | 66 | - | 470 | if (p->readonly) return -EIO; |