1 /* 2 * QEMU keysym to keycode conversion using rdesktop keymaps 3 * 4 * Copyright (c) 2004 Johannes Schindelin 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 #include "keymaps.h" 26 #include "sysemu.h" 27 28 static int get_keysym(const name2keysym_t *table, 29 const char *name) 30 { 31 const name2keysym_t *p; 32 for(p = table; p->name != NULL; p++) { 33 if (!strcmp(p->name, name)) 34 return p->keysym; 35 } 36 return 0; 37 } 38 39 40 static void add_to_key_range(struct key_range **krp, int code) { 41 struct key_range *kr; 42 for (kr = *krp; kr; kr = kr->next) { 43 if (code >= kr->start && code <= kr->end) 44 break; 45 if (code == kr->start - 1) { 46 kr->start--; 47 break; 48 } 49 if (code == kr->end + 1) { 50 kr->end++; 51 break; 52 } 53 } 54 if (kr == NULL) { 55 kr = g_malloc0(sizeof(*kr)); 56 kr->start = kr->end = code; 57 kr->next = *krp; 58 *krp = kr; 59 } 60 } 61 62 static void add_keysym(char *line, int keysym, int keycode, kbd_layout_t *k) { 63 if (keysym < MAX_NORMAL_KEYCODE) { 64 //fprintf(stderr,"Setting keysym %s (%d) to %d\n",line,keysym,keycode); 65 k->keysym2keycode[keysym] = keycode; 66 } else { 67 if (k->extra_count >= MAX_EXTRA_COUNT) { 68 fprintf(stderr, 69 "Warning: Could not assign keysym %s (0x%x) because of memory constraints.\n", 70 line, keysym); 71 } else { 72 #if 0 73 fprintf(stderr, "Setting %d: %d,%d\n", 74 k->extra_count, keysym, keycode); 75 #endif 76 k->keysym2keycode_extra[k->extra_count]. 77 keysym = keysym; 78 k->keysym2keycode_extra[k->extra_count]. 79 keycode = keycode; 80 k->extra_count++; 81 } 82 } 83 } 84 85 static kbd_layout_t *parse_keyboard_layout(const name2keysym_t *table, 86 const char *language, 87 kbd_layout_t * k) 88 { 89 FILE *f; 90 char * filename; 91 char line[1024]; 92 int len; 93 94 filename = qemu_find_file(QEMU_FILE_TYPE_KEYMAP, language); 95 f = filename ? fopen(filename, "r") : NULL; 96 g_free(filename); 97 if (!f) { 98 fprintf(stderr, 99 "Could not read keymap file: '%s'\n", language); 100 return NULL; 101 } 102 103 if (!k) 104 k = g_malloc0(sizeof(kbd_layout_t)); 105 106 for(;;) { 107 if (fgets(line, 1024, f) == NULL) 108 break; 109 len = strlen(line); 110 if (len > 0 && line[len - 1] == '\n') 111 line[len - 1] = '\0'; 112 if (line[0] == '#') 113 continue; 114 if (!strncmp(line, "map ", 4)) 115 continue; 116 if (!strncmp(line, "include ", 8)) { 117 parse_keyboard_layout(table, line + 8, k); 118 } else { 119 char *end_of_keysym = line; 120 while (*end_of_keysym != 0 && *end_of_keysym != ' ') 121 end_of_keysym++; 122 if (*end_of_keysym) { 123 int keysym; 124 *end_of_keysym = 0; 125 keysym = get_keysym(table, line); 126 if (keysym == 0) { 127 // fprintf(stderr, "Warning: unknown keysym %s\n", line); 128 } else { 129 const char *rest = end_of_keysym + 1; 130 char *rest2; 131 int keycode = strtol(rest, &rest2, 0); 132 133 if (rest && strstr(rest, "numlock")) { 134 add_to_key_range(&k->keypad_range, keycode); 135 add_to_key_range(&k->numlock_range, keysym); 136 //fprintf(stderr, "keypad keysym %04x keycode %d\n", keysym, keycode); 137 } 138 139 if (rest && strstr(rest, "shift")) 140 keycode |= SCANCODE_SHIFT; 141 if (rest && strstr(rest, "altgr")) 142 keycode |= SCANCODE_ALTGR; 143 if (rest && strstr(rest, "ctrl")) 144 keycode |= SCANCODE_CTRL; 145 146 add_keysym(line, keysym, keycode, k); 147 148 if (rest && strstr(rest, "addupper")) { 149 char *c; 150 for (c = line; *c; c++) 151 *c = qemu_toupper(*c); 152 keysym = get_keysym(table, line); 153 if (keysym) 154 add_keysym(line, keysym, keycode | SCANCODE_SHIFT, k); 155 } 156 } 157 } 158 } 159 } 160 fclose(f); 161 return k; 162 } 163 164 165 void *init_keyboard_layout(const name2keysym_t *table, const char *language) 166 { 167 return parse_keyboard_layout(table, language, NULL); 168 } 169 170 171 int keysym2scancode(void *kbd_layout, int keysym) 172 { 173 kbd_layout_t *k = kbd_layout; 174 if (keysym < MAX_NORMAL_KEYCODE) { 175 if (k->keysym2keycode[keysym] == 0) 176 fprintf(stderr, "Warning: no scancode found for keysym %d\n", 177 keysym); 178 return k->keysym2keycode[keysym]; 179 } else { 180 int i; 181 #ifdef XK_ISO_Left_Tab 182 if (keysym == XK_ISO_Left_Tab) 183 keysym = XK_Tab; 184 #endif 185 for (i = 0; i < k->extra_count; i++) 186 if (k->keysym2keycode_extra[i].keysym == keysym) 187 return k->keysym2keycode_extra[i].keycode; 188 } 189 return 0; 190 } 191 192 int keycode_is_keypad(void *kbd_layout, int keycode) 193 { 194 kbd_layout_t *k = kbd_layout; 195 struct key_range *kr; 196 197 for (kr = k->keypad_range; kr; kr = kr->next) 198 if (keycode >= kr->start && keycode <= kr->end) 199 return 1; 200 return 0; 201 } 202 203 int keysym_is_numlock(void *kbd_layout, int keysym) 204 { 205 kbd_layout_t *k = kbd_layout; 206 struct key_range *kr; 207 208 for (kr = k->numlock_range; kr; kr = kr->next) 209 if (keysym >= kr->start && keysym <= kr->end) 210 return 1; 211 return 0; 212 } 213