1 |
1275 |
phoenix |
/*
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2 |
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* consolemap.c
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3 |
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*
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4 |
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* Mapping from internal code (such as Latin-1 or Unicode or IBM PC code)
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5 |
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* to font positions.
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6 |
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*
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7 |
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* aeb, 950210
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8 |
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*
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9 |
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* Support for multiple unimaps by Jakub Jelinek <jj@ultra.linux.cz>, July 1998
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10 |
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*
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11 |
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* Fix bug in inverse translation. Stanislav Voronyi <stas@cnti.uanet.kharkov.ua>, Dec 1998
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12 |
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*/
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13 |
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14 |
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#include <linux/kd.h>
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15 |
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#include <linux/errno.h>
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16 |
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#include <linux/mm.h>
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17 |
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#include <linux/slab.h>
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18 |
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#include <linux/init.h>
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19 |
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#include <linux/tty.h>
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20 |
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#include <asm/uaccess.h>
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21 |
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#include <linux/consolemap.h>
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22 |
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#include <linux/console_struct.h>
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23 |
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#include <linux/vt_kern.h>
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24 |
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25 |
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static unsigned short translations[][256] = {
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26 |
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/* 8-bit Latin-1 mapped to Unicode -- trivial mapping */
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27 |
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{
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28 |
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0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007,
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29 |
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0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f,
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30 |
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0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017,
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31 |
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0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x001f,
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32 |
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0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
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33 |
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0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x002f,
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34 |
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0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
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35 |
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0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f,
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36 |
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0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
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37 |
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0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f,
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38 |
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0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
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39 |
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0x0058, 0x0059, 0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f,
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40 |
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0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,
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41 |
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0x0068, 0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f,
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42 |
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0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,
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43 |
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0x0078, 0x0079, 0x007a, 0x007b, 0x007c, 0x007d, 0x007e, 0x007f,
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44 |
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0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087,
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45 |
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0x0088, 0x0089, 0x008a, 0x008b, 0x008c, 0x008d, 0x008e, 0x008f,
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46 |
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0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
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47 |
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0x0098, 0x0099, 0x009a, 0x009b, 0x009c, 0x009d, 0x009e, 0x009f,
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48 |
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0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7,
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49 |
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0x00a8, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x00af,
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50 |
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0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x00b4, 0x00b5, 0x00b6, 0x00b7,
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51 |
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0x00b8, 0x00b9, 0x00ba, 0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf,
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52 |
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0x00c0, 0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5, 0x00c6, 0x00c7,
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53 |
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0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x00cc, 0x00cd, 0x00ce, 0x00cf,
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54 |
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0x00d0, 0x00d1, 0x00d2, 0x00d3, 0x00d4, 0x00d5, 0x00d6, 0x00d7,
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55 |
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0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x00dd, 0x00de, 0x00df,
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56 |
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0x00e0, 0x00e1, 0x00e2, 0x00e3, 0x00e4, 0x00e5, 0x00e6, 0x00e7,
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57 |
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0x00e8, 0x00e9, 0x00ea, 0x00eb, 0x00ec, 0x00ed, 0x00ee, 0x00ef,
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58 |
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0x00f0, 0x00f1, 0x00f2, 0x00f3, 0x00f4, 0x00f5, 0x00f6, 0x00f7,
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59 |
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0x00f8, 0x00f9, 0x00fa, 0x00fb, 0x00fc, 0x00fd, 0x00fe, 0x00ff
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60 |
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},
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61 |
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/* VT100 graphics mapped to Unicode */
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62 |
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{
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63 |
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0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007,
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64 |
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0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f,
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65 |
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0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017,
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66 |
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0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x001f,
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67 |
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0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
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68 |
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0x0028, 0x0029, 0x002a, 0x2192, 0x2190, 0x2191, 0x2193, 0x002f,
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69 |
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0x2588, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
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70 |
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0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f,
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71 |
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0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
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72 |
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0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f,
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73 |
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0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
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74 |
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0x0058, 0x0059, 0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x00a0,
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75 |
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0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1,
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76 |
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0x2591, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0xf800,
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77 |
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0xf801, 0x2500, 0xf803, 0xf804, 0x251c, 0x2524, 0x2534, 0x252c,
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78 |
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0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, 0x007f,
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79 |
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0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087,
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80 |
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0x0088, 0x0089, 0x008a, 0x008b, 0x008c, 0x008d, 0x008e, 0x008f,
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81 |
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0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
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82 |
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0x0098, 0x0099, 0x009a, 0x009b, 0x009c, 0x009d, 0x009e, 0x009f,
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83 |
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0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7,
|
84 |
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0x00a8, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x00af,
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85 |
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0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x00b4, 0x00b5, 0x00b6, 0x00b7,
|
86 |
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0x00b8, 0x00b9, 0x00ba, 0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf,
|
87 |
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0x00c0, 0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5, 0x00c6, 0x00c7,
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88 |
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0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x00cc, 0x00cd, 0x00ce, 0x00cf,
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89 |
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0x00d0, 0x00d1, 0x00d2, 0x00d3, 0x00d4, 0x00d5, 0x00d6, 0x00d7,
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90 |
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0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x00dd, 0x00de, 0x00df,
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91 |
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0x00e0, 0x00e1, 0x00e2, 0x00e3, 0x00e4, 0x00e5, 0x00e6, 0x00e7,
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92 |
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0x00e8, 0x00e9, 0x00ea, 0x00eb, 0x00ec, 0x00ed, 0x00ee, 0x00ef,
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93 |
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0x00f0, 0x00f1, 0x00f2, 0x00f3, 0x00f4, 0x00f5, 0x00f6, 0x00f7,
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94 |
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0x00f8, 0x00f9, 0x00fa, 0x00fb, 0x00fc, 0x00fd, 0x00fe, 0x00ff
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95 |
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},
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96 |
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/* IBM Codepage 437 mapped to Unicode */
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97 |
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{
|
98 |
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0x0000, 0x263a, 0x263b, 0x2665, 0x2666, 0x2663, 0x2660, 0x2022,
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99 |
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0x25d8, 0x25cb, 0x25d9, 0x2642, 0x2640, 0x266a, 0x266b, 0x263c,
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100 |
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0x25b6, 0x25c0, 0x2195, 0x203c, 0x00b6, 0x00a7, 0x25ac, 0x21a8,
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101 |
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0x2191, 0x2193, 0x2192, 0x2190, 0x221f, 0x2194, 0x25b2, 0x25bc,
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102 |
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0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
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103 |
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0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x002f,
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104 |
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0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
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105 |
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0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f,
|
106 |
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0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
|
107 |
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0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f,
|
108 |
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0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
|
109 |
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0x0058, 0x0059, 0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f,
|
110 |
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0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,
|
111 |
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0x0068, 0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f,
|
112 |
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0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,
|
113 |
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0x0078, 0x0079, 0x007a, 0x007b, 0x007c, 0x007d, 0x007e, 0x2302,
|
114 |
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0x00c7, 0x00fc, 0x00e9, 0x00e2, 0x00e4, 0x00e0, 0x00e5, 0x00e7,
|
115 |
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0x00ea, 0x00eb, 0x00e8, 0x00ef, 0x00ee, 0x00ec, 0x00c4, 0x00c5,
|
116 |
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0x00c9, 0x00e6, 0x00c6, 0x00f4, 0x00f6, 0x00f2, 0x00fb, 0x00f9,
|
117 |
|
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0x00ff, 0x00d6, 0x00dc, 0x00a2, 0x00a3, 0x00a5, 0x20a7, 0x0192,
|
118 |
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0x00e1, 0x00ed, 0x00f3, 0x00fa, 0x00f1, 0x00d1, 0x00aa, 0x00ba,
|
119 |
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0x00bf, 0x2310, 0x00ac, 0x00bd, 0x00bc, 0x00a1, 0x00ab, 0x00bb,
|
120 |
|
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0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
|
121 |
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0x2555, 0x2563, 0x2551, 0x2557, 0x255d, 0x255c, 0x255b, 0x2510,
|
122 |
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0x2514, 0x2534, 0x252c, 0x251c, 0x2500, 0x253c, 0x255e, 0x255f,
|
123 |
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0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256c, 0x2567,
|
124 |
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0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256b,
|
125 |
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0x256a, 0x2518, 0x250c, 0x2588, 0x2584, 0x258c, 0x2590, 0x2580,
|
126 |
|
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0x03b1, 0x00df, 0x0393, 0x03c0, 0x03a3, 0x03c3, 0x00b5, 0x03c4,
|
127 |
|
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0x03a6, 0x0398, 0x03a9, 0x03b4, 0x221e, 0x03c6, 0x03b5, 0x2229,
|
128 |
|
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0x2261, 0x00b1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00f7, 0x2248,
|
129 |
|
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0x00b0, 0x2219, 0x00b7, 0x221a, 0x207f, 0x00b2, 0x25a0, 0x00a0
|
130 |
|
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},
|
131 |
|
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/* User mapping -- default to codes for direct font mapping */
|
132 |
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{
|
133 |
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0xf000, 0xf001, 0xf002, 0xf003, 0xf004, 0xf005, 0xf006, 0xf007,
|
134 |
|
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0xf008, 0xf009, 0xf00a, 0xf00b, 0xf00c, 0xf00d, 0xf00e, 0xf00f,
|
135 |
|
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0xf010, 0xf011, 0xf012, 0xf013, 0xf014, 0xf015, 0xf016, 0xf017,
|
136 |
|
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0xf018, 0xf019, 0xf01a, 0xf01b, 0xf01c, 0xf01d, 0xf01e, 0xf01f,
|
137 |
|
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0xf020, 0xf021, 0xf022, 0xf023, 0xf024, 0xf025, 0xf026, 0xf027,
|
138 |
|
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0xf028, 0xf029, 0xf02a, 0xf02b, 0xf02c, 0xf02d, 0xf02e, 0xf02f,
|
139 |
|
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0xf030, 0xf031, 0xf032, 0xf033, 0xf034, 0xf035, 0xf036, 0xf037,
|
140 |
|
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0xf038, 0xf039, 0xf03a, 0xf03b, 0xf03c, 0xf03d, 0xf03e, 0xf03f,
|
141 |
|
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0xf040, 0xf041, 0xf042, 0xf043, 0xf044, 0xf045, 0xf046, 0xf047,
|
142 |
|
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0xf048, 0xf049, 0xf04a, 0xf04b, 0xf04c, 0xf04d, 0xf04e, 0xf04f,
|
143 |
|
|
0xf050, 0xf051, 0xf052, 0xf053, 0xf054, 0xf055, 0xf056, 0xf057,
|
144 |
|
|
0xf058, 0xf059, 0xf05a, 0xf05b, 0xf05c, 0xf05d, 0xf05e, 0xf05f,
|
145 |
|
|
0xf060, 0xf061, 0xf062, 0xf063, 0xf064, 0xf065, 0xf066, 0xf067,
|
146 |
|
|
0xf068, 0xf069, 0xf06a, 0xf06b, 0xf06c, 0xf06d, 0xf06e, 0xf06f,
|
147 |
|
|
0xf070, 0xf071, 0xf072, 0xf073, 0xf074, 0xf075, 0xf076, 0xf077,
|
148 |
|
|
0xf078, 0xf079, 0xf07a, 0xf07b, 0xf07c, 0xf07d, 0xf07e, 0xf07f,
|
149 |
|
|
0xf080, 0xf081, 0xf082, 0xf083, 0xf084, 0xf085, 0xf086, 0xf087,
|
150 |
|
|
0xf088, 0xf089, 0xf08a, 0xf08b, 0xf08c, 0xf08d, 0xf08e, 0xf08f,
|
151 |
|
|
0xf090, 0xf091, 0xf092, 0xf093, 0xf094, 0xf095, 0xf096, 0xf097,
|
152 |
|
|
0xf098, 0xf099, 0xf09a, 0xf09b, 0xf09c, 0xf09d, 0xf09e, 0xf09f,
|
153 |
|
|
0xf0a0, 0xf0a1, 0xf0a2, 0xf0a3, 0xf0a4, 0xf0a5, 0xf0a6, 0xf0a7,
|
154 |
|
|
0xf0a8, 0xf0a9, 0xf0aa, 0xf0ab, 0xf0ac, 0xf0ad, 0xf0ae, 0xf0af,
|
155 |
|
|
0xf0b0, 0xf0b1, 0xf0b2, 0xf0b3, 0xf0b4, 0xf0b5, 0xf0b6, 0xf0b7,
|
156 |
|
|
0xf0b8, 0xf0b9, 0xf0ba, 0xf0bb, 0xf0bc, 0xf0bd, 0xf0be, 0xf0bf,
|
157 |
|
|
0xf0c0, 0xf0c1, 0xf0c2, 0xf0c3, 0xf0c4, 0xf0c5, 0xf0c6, 0xf0c7,
|
158 |
|
|
0xf0c8, 0xf0c9, 0xf0ca, 0xf0cb, 0xf0cc, 0xf0cd, 0xf0ce, 0xf0cf,
|
159 |
|
|
0xf0d0, 0xf0d1, 0xf0d2, 0xf0d3, 0xf0d4, 0xf0d5, 0xf0d6, 0xf0d7,
|
160 |
|
|
0xf0d8, 0xf0d9, 0xf0da, 0xf0db, 0xf0dc, 0xf0dd, 0xf0de, 0xf0df,
|
161 |
|
|
0xf0e0, 0xf0e1, 0xf0e2, 0xf0e3, 0xf0e4, 0xf0e5, 0xf0e6, 0xf0e7,
|
162 |
|
|
0xf0e8, 0xf0e9, 0xf0ea, 0xf0eb, 0xf0ec, 0xf0ed, 0xf0ee, 0xf0ef,
|
163 |
|
|
0xf0f0, 0xf0f1, 0xf0f2, 0xf0f3, 0xf0f4, 0xf0f5, 0xf0f6, 0xf0f7,
|
164 |
|
|
0xf0f8, 0xf0f9, 0xf0fa, 0xf0fb, 0xf0fc, 0xf0fd, 0xf0fe, 0xf0ff
|
165 |
|
|
}
|
166 |
|
|
};
|
167 |
|
|
|
168 |
|
|
/* The standard kernel character-to-font mappings are not invertible
|
169 |
|
|
-- this is just a best effort. */
|
170 |
|
|
|
171 |
|
|
#define MAX_GLYPH 512 /* Max possible glyph value */
|
172 |
|
|
|
173 |
|
|
static int inv_translate[MAX_NR_CONSOLES];
|
174 |
|
|
|
175 |
|
|
struct uni_pagedir {
|
176 |
|
|
u16 **uni_pgdir[32];
|
177 |
|
|
unsigned long refcount;
|
178 |
|
|
unsigned long sum;
|
179 |
|
|
unsigned char *inverse_translations[4];
|
180 |
|
|
int readonly;
|
181 |
|
|
};
|
182 |
|
|
|
183 |
|
|
static struct uni_pagedir *dflt;
|
184 |
|
|
|
185 |
|
|
static void set_inverse_transl(struct vc_data *conp, struct uni_pagedir *p, int i)
|
186 |
|
|
{
|
187 |
|
|
int j, glyph;
|
188 |
|
|
unsigned short *t = translations[i];
|
189 |
|
|
unsigned char *q;
|
190 |
|
|
|
191 |
|
|
if (!p) return;
|
192 |
|
|
q = p->inverse_translations[i];
|
193 |
|
|
|
194 |
|
|
if (!q) {
|
195 |
|
|
q = p->inverse_translations[i] = (unsigned char *)
|
196 |
|
|
kmalloc(MAX_GLYPH, GFP_KERNEL);
|
197 |
|
|
if (!q) return;
|
198 |
|
|
}
|
199 |
|
|
memset(q, 0, MAX_GLYPH);
|
200 |
|
|
|
201 |
|
|
for (j = 0; j < E_TABSZ; j++) {
|
202 |
|
|
glyph = conv_uni_to_pc(conp, t[j]);
|
203 |
|
|
if (glyph >= 0 && glyph < MAX_GLYPH && q[glyph] < 32) {
|
204 |
|
|
/* prefer '-' above SHY etc. */
|
205 |
|
|
q[glyph] = j;
|
206 |
|
|
}
|
207 |
|
|
}
|
208 |
|
|
}
|
209 |
|
|
|
210 |
|
|
unsigned short *set_translate(int m,int currcons)
|
211 |
|
|
{
|
212 |
|
|
inv_translate[currcons] = m;
|
213 |
|
|
return translations[m];
|
214 |
|
|
}
|
215 |
|
|
|
216 |
|
|
/*
|
217 |
|
|
* Inverse translation is impossible for several reasons:
|
218 |
|
|
* 1. The font<->character maps are not 1-1.
|
219 |
|
|
* 2. The text may have been written while a different translation map
|
220 |
|
|
* was active, or using Unicode.
|
221 |
|
|
* Still, it is now possible to a certain extent to cut and paste non-ASCII.
|
222 |
|
|
*/
|
223 |
|
|
unsigned char inverse_translate(struct vc_data *conp, int glyph)
|
224 |
|
|
{
|
225 |
|
|
struct uni_pagedir *p;
|
226 |
|
|
if (glyph < 0 || glyph >= MAX_GLYPH)
|
227 |
|
|
return 0;
|
228 |
|
|
else if (!(p = (struct uni_pagedir *)*conp->vc_uni_pagedir_loc) ||
|
229 |
|
|
!p->inverse_translations[inv_translate[conp->vc_num]])
|
230 |
|
|
return glyph;
|
231 |
|
|
else
|
232 |
|
|
return p->inverse_translations[inv_translate[conp->vc_num]][glyph];
|
233 |
|
|
}
|
234 |
|
|
|
235 |
|
|
static void update_user_maps(void)
|
236 |
|
|
{
|
237 |
|
|
int i;
|
238 |
|
|
struct uni_pagedir *p, *q = NULL;
|
239 |
|
|
|
240 |
|
|
for (i = 0; i < MAX_NR_CONSOLES; i++) {
|
241 |
|
|
if (!vc_cons_allocated(i))
|
242 |
|
|
continue;
|
243 |
|
|
p = (struct uni_pagedir *)*vc_cons[i].d->vc_uni_pagedir_loc;
|
244 |
|
|
if (p && p != q) {
|
245 |
|
|
set_inverse_transl(vc_cons[i].d, p, USER_MAP);
|
246 |
|
|
q = p;
|
247 |
|
|
}
|
248 |
|
|
}
|
249 |
|
|
}
|
250 |
|
|
|
251 |
|
|
/*
|
252 |
|
|
* Load customizable translation table
|
253 |
|
|
* arg points to a 256 byte translation table.
|
254 |
|
|
*
|
255 |
|
|
* The "old" variants are for translation directly to font (using the
|
256 |
|
|
* 0xf000-0xf0ff "transparent" Unicodes) whereas the "new" variants set
|
257 |
|
|
* Unicodes explicitly.
|
258 |
|
|
*/
|
259 |
|
|
int con_set_trans_old(unsigned char * arg)
|
260 |
|
|
{
|
261 |
|
|
int i;
|
262 |
|
|
unsigned short *p = translations[USER_MAP];
|
263 |
|
|
|
264 |
|
|
i = verify_area(VERIFY_READ, (void *)arg, E_TABSZ);
|
265 |
|
|
if (i)
|
266 |
|
|
return i;
|
267 |
|
|
|
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();
|
275 |
|
|
return 0;
|
276 |
|
|
}
|
277 |
|
|
|
278 |
|
|
int con_get_trans_old(unsigned char * arg)
|
279 |
|
|
{
|
280 |
|
|
int i, ch;
|
281 |
|
|
unsigned short *p = translations[USER_MAP];
|
282 |
|
|
|
283 |
|
|
i = verify_area(VERIFY_WRITE, (void *)arg, E_TABSZ);
|
284 |
|
|
if (i)
|
285 |
|
|
return i;
|
286 |
|
|
|
287 |
|
|
for (i=0; i<E_TABSZ ; i++)
|
288 |
|
|
{
|
289 |
|
|
ch = conv_uni_to_pc(vc_cons[fg_console].d, p[i]);
|
290 |
|
|
__put_user((ch & ~0xff) ? 0 : ch, arg+i);
|
291 |
|
|
}
|
292 |
|
|
return 0;
|
293 |
|
|
}
|
294 |
|
|
|
295 |
|
|
int con_set_trans_new(ushort * arg)
|
296 |
|
|
{
|
297 |
|
|
int i;
|
298 |
|
|
unsigned short *p = translations[USER_MAP];
|
299 |
|
|
|
300 |
|
|
i = verify_area(VERIFY_READ, (void *)arg,
|
301 |
|
|
E_TABSZ*sizeof(unsigned short));
|
302 |
|
|
if (i)
|
303 |
|
|
return i;
|
304 |
|
|
|
305 |
|
|
for (i=0; i<E_TABSZ ; i++) {
|
306 |
|
|
unsigned short us;
|
307 |
|
|
__get_user(us, arg+i);
|
308 |
|
|
p[i] = us;
|
309 |
|
|
}
|
310 |
|
|
|
311 |
|
|
update_user_maps();
|
312 |
|
|
return 0;
|
313 |
|
|
}
|
314 |
|
|
|
315 |
|
|
int con_get_trans_new(ushort * arg)
|
316 |
|
|
{
|
317 |
|
|
int i;
|
318 |
|
|
unsigned short *p = translations[USER_MAP];
|
319 |
|
|
|
320 |
|
|
i = verify_area(VERIFY_WRITE, (void *)arg,
|
321 |
|
|
E_TABSZ*sizeof(unsigned short));
|
322 |
|
|
if (i)
|
323 |
|
|
return i;
|
324 |
|
|
|
325 |
|
|
for (i=0; i<E_TABSZ ; i++)
|
326 |
|
|
__put_user(p[i], arg+i);
|
327 |
|
|
|
328 |
|
|
return 0;
|
329 |
|
|
}
|
330 |
|
|
|
331 |
|
|
/*
|
332 |
|
|
* Unicode -> current font conversion
|
333 |
|
|
*
|
334 |
|
|
* A font has at most 512 chars, usually 256.
|
335 |
|
|
* But one font position may represent several Unicode chars.
|
336 |
|
|
* A hashtable is somewhat of a pain to deal with, so use a
|
337 |
|
|
* "paged table" instead. Simulation has shown the memory cost of
|
338 |
|
|
* this 3-level paged table scheme to be comparable to a hash table.
|
339 |
|
|
*/
|
340 |
|
|
|
341 |
|
|
extern u8 dfont_unicount[]; /* Defined in console_defmap.c */
|
342 |
|
|
extern u16 dfont_unitable[];
|
343 |
|
|
|
344 |
|
|
static void con_release_unimap(struct uni_pagedir *p)
|
345 |
|
|
{
|
346 |
|
|
u16 **p1;
|
347 |
|
|
int i, j;
|
348 |
|
|
|
349 |
|
|
if (p == dflt) dflt = NULL;
|
350 |
|
|
for (i = 0; i < 32; i++) {
|
351 |
|
|
if ((p1 = p->uni_pgdir[i]) != NULL) {
|
352 |
|
|
for (j = 0; j < 32; j++)
|
353 |
|
|
if (p1[j])
|
354 |
|
|
kfree(p1[j]);
|
355 |
|
|
kfree(p1);
|
356 |
|
|
}
|
357 |
|
|
p->uni_pgdir[i] = NULL;
|
358 |
|
|
}
|
359 |
|
|
for (i = 0; i < 4; i++)
|
360 |
|
|
if (p->inverse_translations[i]) {
|
361 |
|
|
kfree(p->inverse_translations[i]);
|
362 |
|
|
p->inverse_translations[i] = NULL;
|
363 |
|
|
}
|
364 |
|
|
}
|
365 |
|
|
|
366 |
|
|
void con_free_unimap(int con)
|
367 |
|
|
{
|
368 |
|
|
struct uni_pagedir *p;
|
369 |
|
|
struct vc_data *conp = vc_cons[con].d;
|
370 |
|
|
|
371 |
|
|
p = (struct uni_pagedir *)*conp->vc_uni_pagedir_loc;
|
372 |
|
|
if (!p) return;
|
373 |
|
|
*conp->vc_uni_pagedir_loc = 0;
|
374 |
|
|
if (--p->refcount) return;
|
375 |
|
|
con_release_unimap(p);
|
376 |
|
|
kfree(p);
|
377 |
|
|
}
|
378 |
|
|
|
379 |
|
|
static int con_unify_unimap(struct vc_data *conp, struct uni_pagedir *p)
|
380 |
|
|
{
|
381 |
|
|
int i, j, k;
|
382 |
|
|
struct uni_pagedir *q;
|
383 |
|
|
|
384 |
|
|
for (i = 0; i < MAX_NR_CONSOLES; i++) {
|
385 |
|
|
if (!vc_cons_allocated(i))
|
386 |
|
|
continue;
|
387 |
|
|
q = (struct uni_pagedir *)*vc_cons[i].d->vc_uni_pagedir_loc;
|
388 |
|
|
if (!q || q == p || q->sum != p->sum)
|
389 |
|
|
continue;
|
390 |
|
|
for (j = 0; j < 32; j++) {
|
391 |
|
|
u16 **p1, **q1;
|
392 |
|
|
p1 = p->uni_pgdir[j]; q1 = q->uni_pgdir[j];
|
393 |
|
|
if (!p1 && !q1)
|
394 |
|
|
continue;
|
395 |
|
|
if (!p1 || !q1)
|
396 |
|
|
break;
|
397 |
|
|
for (k = 0; k < 32; k++) {
|
398 |
|
|
if (!p1[k] && !q1[k])
|
399 |
|
|
continue;
|
400 |
|
|
if (!p1[k] || !q1[k])
|
401 |
|
|
break;
|
402 |
|
|
if (memcmp(p1[k], q1[k], 64*sizeof(u16)))
|
403 |
|
|
break;
|
404 |
|
|
}
|
405 |
|
|
if (k < 32)
|
406 |
|
|
break;
|
407 |
|
|
}
|
408 |
|
|
if (j == 32) {
|
409 |
|
|
q->refcount++;
|
410 |
|
|
*conp->vc_uni_pagedir_loc = (unsigned long)q;
|
411 |
|
|
con_release_unimap(p);
|
412 |
|
|
kfree(p);
|
413 |
|
|
return 1;
|
414 |
|
|
}
|
415 |
|
|
}
|
416 |
|
|
return 0;
|
417 |
|
|
}
|
418 |
|
|
|
419 |
|
|
static int
|
420 |
|
|
con_insert_unipair(struct uni_pagedir *p, u_short unicode, u_short fontpos)
|
421 |
|
|
{
|
422 |
|
|
int i, n;
|
423 |
|
|
u16 **p1, *p2;
|
424 |
|
|
|
425 |
|
|
if (!(p1 = p->uni_pgdir[n = unicode >> 11])) {
|
426 |
|
|
p1 = p->uni_pgdir[n] = kmalloc(32*sizeof(u16 *), GFP_KERNEL);
|
427 |
|
|
if (!p1) return -ENOMEM;
|
428 |
|
|
for (i = 0; i < 32; i++)
|
429 |
|
|
p1[i] = NULL;
|
430 |
|
|
}
|
431 |
|
|
|
432 |
|
|
if (!(p2 = p1[n = (unicode >> 6) & 0x1f])) {
|
433 |
|
|
p2 = p1[n] = kmalloc(64*sizeof(u16), GFP_KERNEL);
|
434 |
|
|
if (!p2) return -ENOMEM;
|
435 |
|
|
memset(p2, 0xff, 64*sizeof(u16)); /* No glyphs for the characters (yet) */
|
436 |
|
|
}
|
437 |
|
|
|
438 |
|
|
p2[unicode & 0x3f] = fontpos;
|
439 |
|
|
|
440 |
|
|
p->sum += (fontpos << 20) + unicode;
|
441 |
|
|
|
442 |
|
|
return 0;
|
443 |
|
|
}
|
444 |
|
|
|
445 |
|
|
/* ui is a leftover from using a hashtable, but might be used again */
|
446 |
|
|
int con_clear_unimap(int con, struct unimapinit *ui)
|
447 |
|
|
{
|
448 |
|
|
struct uni_pagedir *p, *q;
|
449 |
|
|
struct vc_data *conp = vc_cons[con].d;
|
450 |
|
|
|
451 |
|
|
p = (struct uni_pagedir *)*conp->vc_uni_pagedir_loc;
|
452 |
|
|
if (p && p->readonly) return -EIO;
|
453 |
|
|
if (!p || --p->refcount) {
|
454 |
|
|
q = (struct uni_pagedir *)kmalloc(sizeof(*p), GFP_KERNEL);
|
455 |
|
|
if (!q) {
|
456 |
|
|
if (p) p->refcount++;
|
457 |
|
|
return -ENOMEM;
|
458 |
|
|
}
|
459 |
|
|
memset(q, 0, sizeof(*q));
|
460 |
|
|
q->refcount=1;
|
461 |
|
|
*conp->vc_uni_pagedir_loc = (unsigned long)q;
|
462 |
|
|
} else {
|
463 |
|
|
if (p == dflt) dflt = NULL;
|
464 |
|
|
p->refcount++;
|
465 |
|
|
p->sum = 0;
|
466 |
|
|
con_release_unimap(p);
|
467 |
|
|
}
|
468 |
|
|
return 0;
|
469 |
|
|
}
|
470 |
|
|
|
471 |
|
|
int
|
472 |
|
|
con_set_unimap(int con, ushort ct, struct unipair *list)
|
473 |
|
|
{
|
474 |
|
|
int err = 0, err1, i;
|
475 |
|
|
struct uni_pagedir *p, *q;
|
476 |
|
|
struct vc_data *conp = vc_cons[con].d;
|
477 |
|
|
|
478 |
|
|
p = (struct uni_pagedir *)*conp->vc_uni_pagedir_loc;
|
479 |
|
|
if (p->readonly) return -EIO;
|
480 |
|
|
|
481 |
|
|
if (!ct) return 0;
|
482 |
|
|
|
483 |
|
|
if (p->refcount > 1) {
|
484 |
|
|
int j, k;
|
485 |
|
|
u16 **p1, *p2, l;
|
486 |
|
|
|
487 |
|
|
err1 = con_clear_unimap(con, NULL);
|
488 |
|
|
if (err1) return err1;
|
489 |
|
|
|
490 |
|
|
q = (struct uni_pagedir *)*conp->vc_uni_pagedir_loc;
|
491 |
|
|
for (i = 0, l = 0; i < 32; i++)
|
492 |
|
|
if ((p1 = p->uni_pgdir[i]))
|
493 |
|
|
for (j = 0; j < 32; j++)
|
494 |
|
|
if ((p2 = p1[j]))
|
495 |
|
|
for (k = 0; k < 64; k++, l++)
|
496 |
|
|
if (p2[k] != 0xffff) {
|
497 |
|
|
err1 = con_insert_unipair(q, l, p2[k]);
|
498 |
|
|
if (err1) {
|
499 |
|
|
p->refcount++;
|
500 |
|
|
*conp->vc_uni_pagedir_loc = (unsigned long)p;
|
501 |
|
|
con_release_unimap(q);
|
502 |
|
|
kfree(q);
|
503 |
|
|
return err1;
|
504 |
|
|
}
|
505 |
|
|
}
|
506 |
|
|
p = q;
|
507 |
|
|
} else if (p == dflt)
|
508 |
|
|
dflt = NULL;
|
509 |
|
|
|
510 |
|
|
while (ct--) {
|
511 |
|
|
unsigned short unicode, fontpos;
|
512 |
|
|
__get_user(unicode, &list->unicode);
|
513 |
|
|
__get_user(fontpos, &list->fontpos);
|
514 |
|
|
if ((err1 = con_insert_unipair(p, unicode,fontpos)) != 0)
|
515 |
|
|
err = err1;
|
516 |
|
|
list++;
|
517 |
|
|
}
|
518 |
|
|
|
519 |
|
|
if (con_unify_unimap(conp, p))
|
520 |
|
|
return err;
|
521 |
|
|
|
522 |
|
|
for (i = 0; i <= 3; i++)
|
523 |
|
|
set_inverse_transl(conp, p, i); /* Update all inverse translations */
|
524 |
|
|
|
525 |
|
|
return err;
|
526 |
|
|
}
|
527 |
|
|
|
528 |
|
|
/* Loads the unimap for the hardware font, as defined in uni_hash.tbl.
|
529 |
|
|
The representation used was the most compact I could come up
|
530 |
|
|
with. This routine is executed at sys_setup time, and when the
|
531 |
|
|
PIO_FONTRESET ioctl is called. */
|
532 |
|
|
|
533 |
|
|
int
|
534 |
|
|
con_set_default_unimap(int con)
|
535 |
|
|
{
|
536 |
|
|
int i, j, err = 0, err1;
|
537 |
|
|
u16 *q;
|
538 |
|
|
struct uni_pagedir *p;
|
539 |
|
|
struct vc_data *conp = vc_cons[con].d;
|
540 |
|
|
|
541 |
|
|
if (dflt) {
|
542 |
|
|
p = (struct uni_pagedir *)*conp->vc_uni_pagedir_loc;
|
543 |
|
|
if (p == dflt)
|
544 |
|
|
return 0;
|
545 |
|
|
dflt->refcount++;
|
546 |
|
|
*conp->vc_uni_pagedir_loc = (unsigned long)dflt;
|
547 |
|
|
if (p && --p->refcount) {
|
548 |
|
|
con_release_unimap(p);
|
549 |
|
|
kfree(p);
|
550 |
|
|
}
|
551 |
|
|
return 0;
|
552 |
|
|
}
|
553 |
|
|
|
554 |
|
|
/* The default font is always 256 characters */
|
555 |
|
|
|
556 |
|
|
err = con_clear_unimap(con,NULL);
|
557 |
|
|
if (err) return err;
|
558 |
|
|
|
559 |
|
|
p = (struct uni_pagedir *)*conp->vc_uni_pagedir_loc;
|
560 |
|
|
q = dfont_unitable;
|
561 |
|
|
|
562 |
|
|
for (i = 0; i < 256; i++)
|
563 |
|
|
for (j = dfont_unicount[i]; j; j--) {
|
564 |
|
|
err1 = con_insert_unipair(p, *(q++), i);
|
565 |
|
|
if (err1)
|
566 |
|
|
err = err1;
|
567 |
|
|
}
|
568 |
|
|
|
569 |
|
|
if (con_unify_unimap(conp, p)) {
|
570 |
|
|
dflt = (struct uni_pagedir *)*conp->vc_uni_pagedir_loc;
|
571 |
|
|
return err;
|
572 |
|
|
}
|
573 |
|
|
|
574 |
|
|
for (i = 0; i <= 3; i++)
|
575 |
|
|
set_inverse_transl(conp, p, i); /* Update all inverse translations */
|
576 |
|
|
dflt = p;
|
577 |
|
|
return err;
|
578 |
|
|
}
|
579 |
|
|
|
580 |
|
|
int
|
581 |
|
|
con_copy_unimap(int dstcon, int srccon)
|
582 |
|
|
{
|
583 |
|
|
struct vc_data *sconp = vc_cons[srccon].d;
|
584 |
|
|
struct vc_data *dconp = vc_cons[dstcon].d;
|
585 |
|
|
struct uni_pagedir *q;
|
586 |
|
|
|
587 |
|
|
if (!vc_cons_allocated(srccon) || !*sconp->vc_uni_pagedir_loc)
|
588 |
|
|
return -EINVAL;
|
589 |
|
|
if (*dconp->vc_uni_pagedir_loc == *sconp->vc_uni_pagedir_loc)
|
590 |
|
|
return 0;
|
591 |
|
|
con_free_unimap(dstcon);
|
592 |
|
|
q = (struct uni_pagedir *)*sconp->vc_uni_pagedir_loc;
|
593 |
|
|
q->refcount++;
|
594 |
|
|
*dconp->vc_uni_pagedir_loc = (long)q;
|
595 |
|
|
return 0;
|
596 |
|
|
}
|
597 |
|
|
|
598 |
|
|
int
|
599 |
|
|
con_get_unimap(int con, ushort ct, ushort *uct, struct unipair *list)
|
600 |
|
|
{
|
601 |
|
|
int i, j, k, ect;
|
602 |
|
|
u16 **p1, *p2;
|
603 |
|
|
struct uni_pagedir *p;
|
604 |
|
|
struct vc_data *conp = vc_cons[con].d;
|
605 |
|
|
|
606 |
|
|
ect = 0;
|
607 |
|
|
if (*conp->vc_uni_pagedir_loc) {
|
608 |
|
|
p = (struct uni_pagedir *)*conp->vc_uni_pagedir_loc;
|
609 |
|
|
for (i = 0; i < 32; i++)
|
610 |
|
|
if ((p1 = p->uni_pgdir[i]))
|
611 |
|
|
for (j = 0; j < 32; j++)
|
612 |
|
|
if ((p2 = *(p1++)))
|
613 |
|
|
for (k = 0; k < 64; k++) {
|
614 |
|
|
if (*p2 < MAX_GLYPH && ect++ < ct) {
|
615 |
|
|
__put_user((u_short)((i<<11)+(j<<6)+k),
|
616 |
|
|
&list->unicode);
|
617 |
|
|
__put_user((u_short) *p2,
|
618 |
|
|
&list->fontpos);
|
619 |
|
|
list++;
|
620 |
|
|
}
|
621 |
|
|
p2++;
|
622 |
|
|
}
|
623 |
|
|
}
|
624 |
|
|
__put_user(ect, uct);
|
625 |
|
|
return ((ect <= ct) ? 0 : -ENOMEM);
|
626 |
|
|
}
|
627 |
|
|
|
628 |
|
|
void con_protect_unimap(int con, int rdonly)
|
629 |
|
|
{
|
630 |
|
|
struct uni_pagedir *p = (struct uni_pagedir *)
|
631 |
|
|
*vc_cons[con].d->vc_uni_pagedir_loc;
|
632 |
|
|
|
633 |
|
|
if (p) p->readonly = rdonly;
|
634 |
|
|
}
|
635 |
|
|
|
636 |
|
|
int
|
637 |
|
|
conv_uni_to_pc(struct vc_data *conp, long ucs)
|
638 |
|
|
{
|
639 |
|
|
int h;
|
640 |
|
|
u16 **p1, *p2;
|
641 |
|
|
struct uni_pagedir *p;
|
642 |
|
|
|
643 |
|
|
/* Only 16-bit codes supported at this time */
|
644 |
|
|
if (ucs > 0xffff)
|
645 |
|
|
ucs = 0xfffd; /* U+FFFD: REPLACEMENT CHARACTER */
|
646 |
|
|
else if (ucs < 0x20 || ucs >= 0xfffe)
|
647 |
|
|
return -1; /* Not a printable character */
|
648 |
|
|
else if (ucs == 0xfeff || (ucs >= 0x200a && ucs <= 0x200f))
|
649 |
|
|
return -2; /* Zero-width space */
|
650 |
|
|
/*
|
651 |
|
|
* UNI_DIRECT_BASE indicates the start of the region in the User Zone
|
652 |
|
|
* which always has a 1:1 mapping to the currently loaded font. The
|
653 |
|
|
* UNI_DIRECT_MASK indicates the bit span of the region.
|
654 |
|
|
*/
|
655 |
|
|
else if ((ucs & ~UNI_DIRECT_MASK) == UNI_DIRECT_BASE)
|
656 |
|
|
return ucs & UNI_DIRECT_MASK;
|
657 |
|
|
|
658 |
|
|
if (!*conp->vc_uni_pagedir_loc)
|
659 |
|
|
return -3;
|
660 |
|
|
|
661 |
|
|
p = (struct uni_pagedir *)*conp->vc_uni_pagedir_loc;
|
662 |
|
|
if ((p1 = p->uni_pgdir[ucs >> 11]) &&
|
663 |
|
|
(p2 = p1[(ucs >> 6) & 0x1f]) &&
|
664 |
|
|
(h = p2[ucs & 0x3f]) < MAX_GLYPH)
|
665 |
|
|
return h;
|
666 |
|
|
|
667 |
|
|
return -4; /* not found */
|
668 |
|
|
}
|
669 |
|
|
|
670 |
|
|
/*
|
671 |
|
|
* This is called at sys_setup time, after memory and the console are
|
672 |
|
|
* initialized. It must be possible to call kmalloc(..., GFP_KERNEL)
|
673 |
|
|
* from this function, hence the call from sys_setup.
|
674 |
|
|
*/
|
675 |
|
|
void __init
|
676 |
|
|
console_map_init(void)
|
677 |
|
|
{
|
678 |
|
|
int i;
|
679 |
|
|
|
680 |
|
|
for (i = 0; i < MAX_NR_CONSOLES; i++)
|
681 |
|
|
if (vc_cons_allocated(i) && !*vc_cons[i].d->vc_uni_pagedir_loc)
|
682 |
|
|
con_set_default_unimap(i);
|
683 |
|
|
}
|