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 = qemu_mallocz(sizeof(*kr)); 56 kr->start = kr->end = code; 57 kr->next = *krp; 58 *krp = kr; 59 } 60 } 61 62 static kbd_layout_t *parse_keyboard_layout(const name2keysym_t *table, 63 const char *language, 64 kbd_layout_t * k) 65 { 66 FILE *f; 67 char * filename; 68 char line[1024]; 69 int len; 70 71 filename = qemu_find_file(QEMU_FILE_TYPE_KEYMAP, language); 72 73 if (!k) 74 k = qemu_mallocz(sizeof(kbd_layout_t)); 75 if (!(filename && (f = fopen(filename, "r")))) { 76 fprintf(stderr, 77 "Could not read keymap file: '%s'\n", language); 78 return NULL; 79 } 80 qemu_free(filename); 81 for(;;) { 82 if (fgets(line, 1024, f) == NULL) 83 break; 84 len = strlen(line); 85 if (len > 0 && line[len - 1] == '\n') 86 line[len - 1] = '\0'; 87 if (line[0] == '#') 88 continue; 89 if (!strncmp(line, "map ", 4)) 90 continue; 91 if (!strncmp(line, "include ", 8)) { 92 parse_keyboard_layout(table, line + 8, k); 93 } else { 94 char *end_of_keysym = line; 95 while (*end_of_keysym != 0 && *end_of_keysym != ' ') 96 end_of_keysym++; 97 if (*end_of_keysym) { 98 int keysym; 99 *end_of_keysym = 0; 100 keysym = get_keysym(table, line); 101 if (keysym == 0) { 102 // fprintf(stderr, "Warning: unknown keysym %s\n", line); 103 } else { 104 const char *rest = end_of_keysym + 1; 105 char *rest2; 106 int keycode = strtol(rest, &rest2, 0); 107 108 if (rest && strstr(rest, "numlock")) { 109 add_to_key_range(&k->keypad_range, keycode); 110 add_to_key_range(&k->numlock_range, keysym); 111 //fprintf(stderr, "keypad keysym %04x keycode %d\n", keysym, keycode); 112 } 113 114 /* if(keycode&0x80) 115 keycode=(keycode<<8)^0x80e0; */ 116 if (keysym < MAX_NORMAL_KEYCODE) { 117 //fprintf(stderr,"Setting keysym %s (%d) to %d\n",line,keysym,keycode); 118 k->keysym2keycode[keysym] = keycode; 119 } else { 120 if (k->extra_count >= MAX_EXTRA_COUNT) { 121 fprintf(stderr, 122 "Warning: Could not assign keysym %s (0x%x) because of memory constraints.\n", 123 line, keysym); 124 } else { 125 #if 0 126 fprintf(stderr, "Setting %d: %d,%d\n", 127 k->extra_count, keysym, keycode); 128 #endif 129 k->keysym2keycode_extra[k->extra_count]. 130 keysym = keysym; 131 k->keysym2keycode_extra[k->extra_count]. 132 keycode = keycode; 133 k->extra_count++; 134 } 135 } 136 } 137 } 138 } 139 } 140 fclose(f); 141 return k; 142 } 143 144 145 void *init_keyboard_layout(const name2keysym_t *table, const char *language) 146 { 147 return parse_keyboard_layout(table, language, NULL); 148 } 149 150 151 int keysym2scancode(void *kbd_layout, int keysym) 152 { 153 kbd_layout_t *k = kbd_layout; 154 if (keysym < MAX_NORMAL_KEYCODE) { 155 if (k->keysym2keycode[keysym] == 0) 156 fprintf(stderr, "Warning: no scancode found for keysym %d\n", 157 keysym); 158 return k->keysym2keycode[keysym]; 159 } else { 160 int i; 161 #ifdef XK_ISO_Left_Tab 162 if (keysym == XK_ISO_Left_Tab) 163 keysym = XK_Tab; 164 #endif 165 for (i = 0; i < k->extra_count; i++) 166 if (k->keysym2keycode_extra[i].keysym == keysym) 167 return k->keysym2keycode_extra[i].keycode; 168 } 169 return 0; 170 } 171 172 int keycode_is_keypad(void *kbd_layout, int keycode) 173 { 174 kbd_layout_t *k = kbd_layout; 175 struct key_range *kr; 176 177 for (kr = k->keypad_range; kr; kr = kr->next) 178 if (keycode >= kr->start && keycode <= kr->end) 179 return 1; 180 return 0; 181 } 182 183 int keysym_is_numlock(void *kbd_layout, int keysym) 184 { 185 kbd_layout_t *k = kbd_layout; 186 struct key_range *kr; 187 188 for (kr = k->numlock_range; kr; kr = kr->next) 189 if (keysym >= kr->start && keysym <= kr->end) 190 return 1; 191 return 0; 192 } 193
