^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * consolemap.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Mapping from internal code (such as Latin-1 or Unicode or IBM PC code)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * to font positions.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * aeb, 950210
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Support for multiple unimaps by Jakub Jelinek <jj@ultra.linux.cz>, July 1998
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Fix bug in inverse translation. Stanislav Voronyi <stas@cnti.uanet.kharkov.ua>, Dec 1998
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * In order to prevent the following circular lock dependency:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * &mm->mmap_lock --> cpu_hotplug.lock --> console_lock --> &mm->mmap_lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * We cannot allow page fault to happen while holding the console_lock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * Therefore, all the userspace copy operations have to be done outside
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * the console_lock critical sections.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * As all the affected functions are all called directly from vt_ioctl(), we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * can allocate some small buffers directly on stack without worrying about
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * stack overflow.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/kd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/tty.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <linux/console.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <linux/consolemap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include <linux/vt_kern.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static unsigned short translations[][256] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) /* 8-bit Latin-1 mapped to Unicode -- trivial mapping */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x001f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x002f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 0x0058, 0x0059, 0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 0x0068, 0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 0x0078, 0x0079, 0x007a, 0x007b, 0x007c, 0x007d, 0x007e, 0x007f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 0x0088, 0x0089, 0x008a, 0x008b, 0x008c, 0x008d, 0x008e, 0x008f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 0x0098, 0x0099, 0x009a, 0x009b, 0x009c, 0x009d, 0x009e, 0x009f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 0x00a8, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x00af,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x00b4, 0x00b5, 0x00b6, 0x00b7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 0x00b8, 0x00b9, 0x00ba, 0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 0x00c0, 0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5, 0x00c6, 0x00c7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x00cc, 0x00cd, 0x00ce, 0x00cf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 0x00d0, 0x00d1, 0x00d2, 0x00d3, 0x00d4, 0x00d5, 0x00d6, 0x00d7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x00dd, 0x00de, 0x00df,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 0x00e0, 0x00e1, 0x00e2, 0x00e3, 0x00e4, 0x00e5, 0x00e6, 0x00e7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 0x00e8, 0x00e9, 0x00ea, 0x00eb, 0x00ec, 0x00ed, 0x00ee, 0x00ef,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 0x00f0, 0x00f1, 0x00f2, 0x00f3, 0x00f4, 0x00f5, 0x00f6, 0x00f7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 0x00f8, 0x00f9, 0x00fa, 0x00fb, 0x00fc, 0x00fd, 0x00fe, 0x00ff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* VT100 graphics mapped to Unicode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x001f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 0x0028, 0x0029, 0x002a, 0x2192, 0x2190, 0x2191, 0x2193, 0x002f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 0x2588, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) 0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) 0x0058, 0x0059, 0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x00a0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) 0x2591, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, 0x007f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) 0x0088, 0x0089, 0x008a, 0x008b, 0x008c, 0x008d, 0x008e, 0x008f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) 0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) 0x0098, 0x0099, 0x009a, 0x009b, 0x009c, 0x009d, 0x009e, 0x009f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) 0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) 0x00a8, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x00af,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) 0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x00b4, 0x00b5, 0x00b6, 0x00b7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 0x00b8, 0x00b9, 0x00ba, 0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 0x00c0, 0x00c1, 0x00c2, 0x00c3, 0x00c4, 0x00c5, 0x00c6, 0x00c7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x00cc, 0x00cd, 0x00ce, 0x00cf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 0x00d0, 0x00d1, 0x00d2, 0x00d3, 0x00d4, 0x00d5, 0x00d6, 0x00d7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x00dd, 0x00de, 0x00df,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 0x00e0, 0x00e1, 0x00e2, 0x00e3, 0x00e4, 0x00e5, 0x00e6, 0x00e7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 0x00e8, 0x00e9, 0x00ea, 0x00eb, 0x00ec, 0x00ed, 0x00ee, 0x00ef,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 0x00f0, 0x00f1, 0x00f2, 0x00f3, 0x00f4, 0x00f5, 0x00f6, 0x00f7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 0x00f8, 0x00f9, 0x00fa, 0x00fb, 0x00fc, 0x00fd, 0x00fe, 0x00ff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) /* IBM Codepage 437 mapped to Unicode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 0x0000, 0x263a, 0x263b, 0x2665, 0x2666, 0x2663, 0x2660, 0x2022,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 0x25d8, 0x25cb, 0x25d9, 0x2642, 0x2640, 0x266a, 0x266b, 0x263c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 0x25b6, 0x25c0, 0x2195, 0x203c, 0x00b6, 0x00a7, 0x25ac, 0x21a8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 0x2191, 0x2193, 0x2192, 0x2190, 0x221f, 0x2194, 0x25b2, 0x25bc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x002f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 0x0058, 0x0059, 0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 0x0068, 0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 0x0078, 0x0079, 0x007a, 0x007b, 0x007c, 0x007d, 0x007e, 0x2302,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 0x00c7, 0x00fc, 0x00e9, 0x00e2, 0x00e4, 0x00e0, 0x00e5, 0x00e7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 0x00ea, 0x00eb, 0x00e8, 0x00ef, 0x00ee, 0x00ec, 0x00c4, 0x00c5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 0x00c9, 0x00e6, 0x00c6, 0x00f4, 0x00f6, 0x00f2, 0x00fb, 0x00f9,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 0x00ff, 0x00d6, 0x00dc, 0x00a2, 0x00a3, 0x00a5, 0x20a7, 0x0192,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 0x00e1, 0x00ed, 0x00f3, 0x00fa, 0x00f1, 0x00d1, 0x00aa, 0x00ba,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 0x00bf, 0x2310, 0x00ac, 0x00bd, 0x00bc, 0x00a1, 0x00ab, 0x00bb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 0x2555, 0x2563, 0x2551, 0x2557, 0x255d, 0x255c, 0x255b, 0x2510,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 0x2514, 0x2534, 0x252c, 0x251c, 0x2500, 0x253c, 0x255e, 0x255f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 0x255a, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256c, 0x2567,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256b,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 0x256a, 0x2518, 0x250c, 0x2588, 0x2584, 0x258c, 0x2590, 0x2580,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 0x03b1, 0x00df, 0x0393, 0x03c0, 0x03a3, 0x03c3, 0x00b5, 0x03c4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 0x03a6, 0x0398, 0x03a9, 0x03b4, 0x221e, 0x03c6, 0x03b5, 0x2229,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 0x2261, 0x00b1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00f7, 0x2248,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 0x00b0, 0x2219, 0x00b7, 0x221a, 0x207f, 0x00b2, 0x25a0, 0x00a0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) /* User mapping -- default to codes for direct font mapping */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 0xf000, 0xf001, 0xf002, 0xf003, 0xf004, 0xf005, 0xf006, 0xf007,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 0xf008, 0xf009, 0xf00a, 0xf00b, 0xf00c, 0xf00d, 0xf00e, 0xf00f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 0xf010, 0xf011, 0xf012, 0xf013, 0xf014, 0xf015, 0xf016, 0xf017,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 0xf018, 0xf019, 0xf01a, 0xf01b, 0xf01c, 0xf01d, 0xf01e, 0xf01f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 0xf020, 0xf021, 0xf022, 0xf023, 0xf024, 0xf025, 0xf026, 0xf027,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 0xf028, 0xf029, 0xf02a, 0xf02b, 0xf02c, 0xf02d, 0xf02e, 0xf02f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 0xf030, 0xf031, 0xf032, 0xf033, 0xf034, 0xf035, 0xf036, 0xf037,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 0xf038, 0xf039, 0xf03a, 0xf03b, 0xf03c, 0xf03d, 0xf03e, 0xf03f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 0xf040, 0xf041, 0xf042, 0xf043, 0xf044, 0xf045, 0xf046, 0xf047,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 0xf048, 0xf049, 0xf04a, 0xf04b, 0xf04c, 0xf04d, 0xf04e, 0xf04f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 0xf050, 0xf051, 0xf052, 0xf053, 0xf054, 0xf055, 0xf056, 0xf057,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 0xf058, 0xf059, 0xf05a, 0xf05b, 0xf05c, 0xf05d, 0xf05e, 0xf05f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 0xf060, 0xf061, 0xf062, 0xf063, 0xf064, 0xf065, 0xf066, 0xf067,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 0xf068, 0xf069, 0xf06a, 0xf06b, 0xf06c, 0xf06d, 0xf06e, 0xf06f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 0xf070, 0xf071, 0xf072, 0xf073, 0xf074, 0xf075, 0xf076, 0xf077,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 0xf078, 0xf079, 0xf07a, 0xf07b, 0xf07c, 0xf07d, 0xf07e, 0xf07f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 0xf080, 0xf081, 0xf082, 0xf083, 0xf084, 0xf085, 0xf086, 0xf087,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 0xf088, 0xf089, 0xf08a, 0xf08b, 0xf08c, 0xf08d, 0xf08e, 0xf08f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 0xf090, 0xf091, 0xf092, 0xf093, 0xf094, 0xf095, 0xf096, 0xf097,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 0xf098, 0xf099, 0xf09a, 0xf09b, 0xf09c, 0xf09d, 0xf09e, 0xf09f,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 0xf0a0, 0xf0a1, 0xf0a2, 0xf0a3, 0xf0a4, 0xf0a5, 0xf0a6, 0xf0a7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 0xf0a8, 0xf0a9, 0xf0aa, 0xf0ab, 0xf0ac, 0xf0ad, 0xf0ae, 0xf0af,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 0xf0b0, 0xf0b1, 0xf0b2, 0xf0b3, 0xf0b4, 0xf0b5, 0xf0b6, 0xf0b7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 0xf0b8, 0xf0b9, 0xf0ba, 0xf0bb, 0xf0bc, 0xf0bd, 0xf0be, 0xf0bf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 0xf0c0, 0xf0c1, 0xf0c2, 0xf0c3, 0xf0c4, 0xf0c5, 0xf0c6, 0xf0c7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 0xf0c8, 0xf0c9, 0xf0ca, 0xf0cb, 0xf0cc, 0xf0cd, 0xf0ce, 0xf0cf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 0xf0d0, 0xf0d1, 0xf0d2, 0xf0d3, 0xf0d4, 0xf0d5, 0xf0d6, 0xf0d7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 0xf0d8, 0xf0d9, 0xf0da, 0xf0db, 0xf0dc, 0xf0dd, 0xf0de, 0xf0df,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 0xf0e0, 0xf0e1, 0xf0e2, 0xf0e3, 0xf0e4, 0xf0e5, 0xf0e6, 0xf0e7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 0xf0e8, 0xf0e9, 0xf0ea, 0xf0eb, 0xf0ec, 0xf0ed, 0xf0ee, 0xf0ef,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 0xf0f0, 0xf0f1, 0xf0f2, 0xf0f3, 0xf0f4, 0xf0f5, 0xf0f6, 0xf0f7,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 0xf0f8, 0xf0f9, 0xf0fa, 0xf0fb, 0xf0fc, 0xf0fd, 0xf0fe, 0xf0ff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) /* The standard kernel character-to-font mappings are not invertible
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) -- this is just a best effort. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) #define MAX_GLYPH 512 /* Max possible glyph value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) static int inv_translate[MAX_NR_CONSOLES];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) struct uni_pagedir {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) u16 **uni_pgdir[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) unsigned long refcount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) unsigned long sum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) unsigned char *inverse_translations[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) u16 *inverse_trans_unicode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) static struct uni_pagedir *dflt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) static void set_inverse_transl(struct vc_data *conp, struct uni_pagedir *p, int i)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) int j, glyph;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) unsigned short *t = translations[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) unsigned char *q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) if (!p) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) q = p->inverse_translations[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) if (!q) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) q = p->inverse_translations[i] = kmalloc(MAX_GLYPH, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) if (!q) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) memset(q, 0, MAX_GLYPH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) for (j = 0; j < E_TABSZ; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) glyph = conv_uni_to_pc(conp, t[j]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) if (glyph >= 0 && glyph < MAX_GLYPH && q[glyph] < 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) /* prefer '-' above SHY etc. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) q[glyph] = j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) static void set_inverse_trans_unicode(struct vc_data *conp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) struct uni_pagedir *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) int i, j, k, glyph;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) u16 **p1, *p2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) u16 *q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) if (!p) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) q = p->inverse_trans_unicode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) if (!q) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) q = p->inverse_trans_unicode =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) kmalloc_array(MAX_GLYPH, sizeof(u16), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) if (!q)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) memset(q, 0, MAX_GLYPH * sizeof(u16));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) for (i = 0; i < 32; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) p1 = p->uni_pgdir[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) if (!p1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) for (j = 0; j < 32; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) p2 = p1[j];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) if (!p2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) for (k = 0; k < 64; k++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) glyph = p2[k];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) if (glyph >= 0 && glyph < MAX_GLYPH
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) && q[glyph] < 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) q[glyph] = (i << 11) + (j << 6) + k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) unsigned short *set_translate(int m, struct vc_data *vc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) inv_translate[vc->vc_num] = m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) return translations[m];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) * Inverse translation is impossible for several reasons:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) * 1. The font<->character maps are not 1-1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) * 2. The text may have been written while a different translation map
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) * was active.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) * Still, it is now possible to a certain extent to cut and paste non-ASCII.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) u16 inverse_translate(const struct vc_data *conp, int glyph, int use_unicode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) struct uni_pagedir *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) int m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) if (glyph < 0 || glyph >= MAX_GLYPH)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) p = *conp->vc_uni_pagedir_loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) if (!p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) return glyph;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) else if (use_unicode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) if (!p->inverse_trans_unicode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) return glyph;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) return p->inverse_trans_unicode[glyph];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) m = inv_translate[conp->vc_num];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) if (!p->inverse_translations[m])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) return glyph;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) return p->inverse_translations[m][glyph];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) EXPORT_SYMBOL_GPL(inverse_translate);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) static void update_user_maps(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) struct uni_pagedir *p, *q = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) for (i = 0; i < MAX_NR_CONSOLES; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) if (!vc_cons_allocated(i))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) p = *vc_cons[i].d->vc_uni_pagedir_loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) if (p && p != q) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) set_inverse_transl(vc_cons[i].d, p, USER_MAP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) set_inverse_trans_unicode(vc_cons[i].d, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) q = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) * Load customizable translation table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) * arg points to a 256 byte translation table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) * The "old" variants are for translation directly to font (using the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) * 0xf000-0xf0ff "transparent" Unicodes) whereas the "new" variants set
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) * Unicodes explicitly.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) int con_set_trans_old(unsigned char __user * arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) unsigned short inbuf[E_TABSZ];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) unsigned char ubuf[E_TABSZ];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) if (copy_from_user(ubuf, arg, E_TABSZ))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) for (i = 0; i < E_TABSZ ; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) inbuf[i] = UNI_DIRECT_BASE | ubuf[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) console_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) memcpy(translations[USER_MAP], inbuf, sizeof(inbuf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) update_user_maps();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) console_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) int con_get_trans_old(unsigned char __user * arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) int i, ch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) unsigned short *p = translations[USER_MAP];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) unsigned char outbuf[E_TABSZ];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) console_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) for (i = 0; i < E_TABSZ ; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) ch = conv_uni_to_pc(vc_cons[fg_console].d, p[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) outbuf[i] = (ch & ~0xff) ? 0 : ch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) console_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) return copy_to_user(arg, outbuf, sizeof(outbuf)) ? -EFAULT : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) int con_set_trans_new(ushort __user * arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) unsigned short inbuf[E_TABSZ];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) if (copy_from_user(inbuf, arg, sizeof(inbuf)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) console_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) memcpy(translations[USER_MAP], inbuf, sizeof(inbuf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) update_user_maps();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) console_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) int con_get_trans_new(ushort __user * arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) unsigned short outbuf[E_TABSZ];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) console_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) memcpy(outbuf, translations[USER_MAP], sizeof(outbuf));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) console_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) return copy_to_user(arg, outbuf, sizeof(outbuf)) ? -EFAULT : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) * Unicode -> current font conversion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) * A font has at most 512 chars, usually 256.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) * But one font position may represent several Unicode chars.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) * A hashtable is somewhat of a pain to deal with, so use a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) * "paged table" instead. Simulation has shown the memory cost of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) * this 3-level paged table scheme to be comparable to a hash table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) extern u8 dfont_unicount[]; /* Defined in console_defmap.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) extern u16 dfont_unitable[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) static void con_release_unimap(struct uni_pagedir *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) u16 **p1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) int i, j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) if (p == dflt) dflt = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) for (i = 0; i < 32; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) p1 = p->uni_pgdir[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (p1 != NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) for (j = 0; j < 32; j++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) kfree(p1[j]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) kfree(p1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) p->uni_pgdir[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) for (i = 0; i < 4; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) kfree(p->inverse_translations[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) p->inverse_translations[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) kfree(p->inverse_trans_unicode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) p->inverse_trans_unicode = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) /* Caller must hold the console lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) void con_free_unimap(struct vc_data *vc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) struct uni_pagedir *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) p = *vc->vc_uni_pagedir_loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) if (!p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) *vc->vc_uni_pagedir_loc = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) if (--p->refcount)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) con_release_unimap(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) kfree(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) static int con_unify_unimap(struct vc_data *conp, struct uni_pagedir *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) int i, j, k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) struct uni_pagedir *q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) for (i = 0; i < MAX_NR_CONSOLES; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) if (!vc_cons_allocated(i))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) q = *vc_cons[i].d->vc_uni_pagedir_loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) if (!q || q == p || q->sum != p->sum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) for (j = 0; j < 32; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) u16 **p1, **q1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) p1 = p->uni_pgdir[j]; q1 = q->uni_pgdir[j];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) if (!p1 && !q1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) if (!p1 || !q1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) for (k = 0; k < 32; k++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) if (!p1[k] && !q1[k])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) if (!p1[k] || !q1[k])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) if (memcmp(p1[k], q1[k], 64*sizeof(u16)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) if (k < 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) if (j == 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) q->refcount++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) *conp->vc_uni_pagedir_loc = q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) con_release_unimap(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) kfree(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) con_insert_unipair(struct uni_pagedir *p, u_short unicode, u_short fontpos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) int i, n;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) u16 **p1, *p2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) p1 = p->uni_pgdir[n = unicode >> 11];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) if (!p1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) p1 = p->uni_pgdir[n] = kmalloc_array(32, sizeof(u16 *),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) if (!p1) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) for (i = 0; i < 32; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) p1[i] = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) p2 = p1[n = (unicode >> 6) & 0x1f];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) if (!p2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) p2 = p1[n] = kmalloc_array(64, sizeof(u16), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) if (!p2) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) memset(p2, 0xff, 64*sizeof(u16)); /* No glyphs for the characters (yet) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) p2[unicode & 0x3f] = fontpos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) p->sum += (fontpos << 20U) + unicode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) /* Caller must hold the lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) static int con_do_clear_unimap(struct vc_data *vc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) struct uni_pagedir *p, *q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) p = *vc->vc_uni_pagedir_loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) if (!p || --p->refcount) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) q = kzalloc(sizeof(*p), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) if (!q) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) if (p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) p->refcount++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) q->refcount=1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) *vc->vc_uni_pagedir_loc = q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) if (p == dflt) dflt = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) p->refcount++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) p->sum = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) con_release_unimap(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) int con_clear_unimap(struct vc_data *vc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) console_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) ret = con_do_clear_unimap(vc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) console_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) int err = 0, err1, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) struct uni_pagedir *p, *q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) struct unipair *unilist, *plist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) if (!ct)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) unilist = vmemdup_user(list, array_size(sizeof(struct unipair), ct));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) if (IS_ERR(unilist))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) return PTR_ERR(unilist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) console_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) /* Save original vc_unipagdir_loc in case we allocate a new one */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) p = *vc->vc_uni_pagedir_loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) if (!p) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) goto out_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) if (p->refcount > 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) int j, k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) u16 **p1, *p2, l;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) err1 = con_do_clear_unimap(vc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) if (err1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) err = err1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) goto out_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) * Since refcount was > 1, con_clear_unimap() allocated a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) * a new uni_pagedir for this vc. Re: p != q
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) q = *vc->vc_uni_pagedir_loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) * uni_pgdir is a 32*32*64 table with rows allocated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) * when its first entry is added. The unicode value must
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) * still be incremented for empty rows. We are copying
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) * entries from "p" (old) to "q" (new).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) l = 0; /* unicode value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) for (i = 0; i < 32; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) p1 = p->uni_pgdir[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) if (p1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) for (j = 0; j < 32; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) p2 = p1[j];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) if (p2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) for (k = 0; k < 64; k++, l++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) if (p2[k] != 0xffff) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) * Found one, copy entry for unicode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) * l with fontpos value p2[k].
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) err1 = con_insert_unipair(q, l, p2[k]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) if (err1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) p->refcount++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) *vc->vc_uni_pagedir_loc = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) con_release_unimap(q);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) kfree(q);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) err = err1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) goto out_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) /* Account for row of 64 empty entries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) l += 64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) /* Account for empty table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) l += 32 * 64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) * Finished copying font table, set vc_uni_pagedir to new table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) p = q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) } else if (p == dflt) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) dflt = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) * Insert user specified unicode pairs into new table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) for (plist = unilist; ct; ct--, plist++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) err1 = con_insert_unipair(p, plist->unicode, plist->fontpos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) if (err1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) err = err1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) * Merge with fontmaps of any other virtual consoles.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) if (con_unify_unimap(vc, p))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) goto out_unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) for (i = 0; i <= 3; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) set_inverse_transl(vc, p, i); /* Update inverse translations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) set_inverse_trans_unicode(vc, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) out_unlock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) console_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) kvfree(unilist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) * con_set_default_unimap - set default unicode map
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) * @vc: the console we are updating
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) * Loads the unimap for the hardware font, as defined in uni_hash.tbl.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) * The representation used was the most compact I could come up
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) * with. This routine is executed at video setup, and when the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) * PIO_FONTRESET ioctl is called.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) * The caller must hold the console lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) int con_set_default_unimap(struct vc_data *vc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) int i, j, err = 0, err1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) u16 *q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) struct uni_pagedir *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) if (dflt) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) p = *vc->vc_uni_pagedir_loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) if (p == dflt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) dflt->refcount++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) *vc->vc_uni_pagedir_loc = dflt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) if (p && !--p->refcount) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) con_release_unimap(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) kfree(p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) /* The default font is always 256 characters */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) err = con_do_clear_unimap(vc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) p = *vc->vc_uni_pagedir_loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) q = dfont_unitable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) for (i = 0; i < 256; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) for (j = dfont_unicount[i]; j; j--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) err1 = con_insert_unipair(p, *(q++), i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) if (err1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) err = err1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) if (con_unify_unimap(vc, p)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) dflt = *vc->vc_uni_pagedir_loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) for (i = 0; i <= 3; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) set_inverse_transl(vc, p, i); /* Update all inverse translations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) set_inverse_trans_unicode(vc, p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) dflt = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) EXPORT_SYMBOL(con_set_default_unimap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) * con_copy_unimap - copy unimap between two vts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) * @dst_vc: target
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) * @src_vc: source
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) * The caller must hold the console lock when invoking this method
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) struct uni_pagedir *q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) if (!*src_vc->vc_uni_pagedir_loc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) if (*dst_vc->vc_uni_pagedir_loc == *src_vc->vc_uni_pagedir_loc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) con_free_unimap(dst_vc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) q = *src_vc->vc_uni_pagedir_loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) q->refcount++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) *dst_vc->vc_uni_pagedir_loc = q;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) EXPORT_SYMBOL(con_copy_unimap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) * con_get_unimap - get the unicode map
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) * @vc: the console to read from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) * Read the console unicode data for this console. Called from the ioctl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) * handlers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, struct unipair __user *list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) int i, j, k, ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) ushort ect;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) u16 **p1, *p2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) struct uni_pagedir *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) struct unipair *unilist;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) unilist = kvmalloc_array(ct, sizeof(struct unipair), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) if (!unilist)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) console_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) ect = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) if (*vc->vc_uni_pagedir_loc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) p = *vc->vc_uni_pagedir_loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) for (i = 0; i < 32; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) p1 = p->uni_pgdir[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) if (p1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) for (j = 0; j < 32; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) p2 = *(p1++);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) if (p2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) for (k = 0; k < 64; k++, p2++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) if (*p2 >= MAX_GLYPH)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) if (ect < ct) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) unilist[ect].unicode =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) (i<<11)+(j<<6)+k;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) unilist[ect].fontpos = *p2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) ect++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) console_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) if (copy_to_user(list, unilist, min(ect, ct) * sizeof(struct unipair)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) ret = -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) put_user(ect, uct);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) kvfree(unilist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) return ret ? ret : (ect <= ct) ? 0 : -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) * Always use USER_MAP. These functions are used by the keyboard,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) * which shouldn't be affected by G0/G1 switching, etc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) * If the user map still contains default values, i.e. the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) * direct-to-font mapping, then assume user is using Latin1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) * FIXME: at some point we need to decide if we want to lock the table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) * update element itself via the keyboard_event_lock for consistency with the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) * keyboard driver as well as the consoles
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) /* may be called during an interrupt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) u32 conv_8bit_to_uni(unsigned char c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) unsigned short uni = translations[USER_MAP][c];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) return uni == (0xf000 | c) ? c : uni;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) int conv_uni_to_8bit(u32 uni)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) int c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) for (c = 0; c < 0x100; c++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) if (translations[USER_MAP][c] == uni ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) (translations[USER_MAP][c] == (c | 0xf000) && uni == c))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) return c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) conv_uni_to_pc(struct vc_data *conp, long ucs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) int h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) u16 **p1, *p2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) struct uni_pagedir *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) /* Only 16-bit codes supported at this time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) if (ucs > 0xffff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) return -4; /* Not found */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) else if (ucs < 0x20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) return -1; /* Not a printable character */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) else if (ucs == 0xfeff || (ucs >= 0x200b && ucs <= 0x200f))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) return -2; /* Zero-width space */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) * UNI_DIRECT_BASE indicates the start of the region in the User Zone
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) * which always has a 1:1 mapping to the currently loaded font. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) * UNI_DIRECT_MASK indicates the bit span of the region.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) else if ((ucs & ~UNI_DIRECT_MASK) == UNI_DIRECT_BASE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) return ucs & UNI_DIRECT_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) if (!*conp->vc_uni_pagedir_loc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) return -3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) p = *conp->vc_uni_pagedir_loc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) if ((p1 = p->uni_pgdir[ucs >> 11]) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) (p2 = p1[(ucs >> 6) & 0x1f]) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) (h = p2[ucs & 0x3f]) < MAX_GLYPH)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) return h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) return -4; /* not found */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) * This is called at sys_setup time, after memory and the console are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) * initialized. It must be possible to call kmalloc(..., GFP_KERNEL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) * from this function, hence the call from sys_setup.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) void __init
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) console_map_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) for (i = 0; i < MAX_NR_CONSOLES; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) if (vc_cons_allocated(i) && !*vc_cons[i].d->vc_uni_pagedir_loc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) con_set_default_unimap(vc_cons[i].d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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