Annotation of qemu/keymaps.c, revision 1.1.1.2

1.1       root        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: static int get_keysym(const char *name)
                     26: {
                     27:     name2keysym_t *p;
                     28:     for(p = name2keysym; p->name != NULL; p++) {
                     29:         if (!strcmp(p->name, name))
                     30:             return p->keysym;
                     31:     }
                     32:     return 0;
                     33: }
                     34: 
                     35: #define MAX_NORMAL_KEYCODE 512
                     36: #define MAX_EXTRA_COUNT 256
                     37: typedef struct {
                     38:     uint16_t keysym2keycode[MAX_NORMAL_KEYCODE];
                     39:     struct {
                     40:        int keysym;
                     41:        uint16_t keycode;
                     42:     } keysym2keycode_extra[MAX_EXTRA_COUNT];
                     43:     int extra_count;
                     44: } kbd_layout_t;
                     45: 
                     46: static kbd_layout_t *parse_keyboard_layout(const char *language,
                     47:                                           kbd_layout_t * k)
                     48: {
                     49:     FILE *f;
                     50:     char file_name[1024];
                     51:     char line[1024];
                     52:     int len;
                     53: 
                     54:     snprintf(file_name, sizeof(file_name),
                     55:              "%s/keymaps/%s", bios_dir, language);
                     56: 
                     57:     if (!k)
                     58:        k = qemu_mallocz(sizeof(kbd_layout_t));
                     59:     if (!k)
                     60:         return 0;
                     61:     if (!(f = fopen(file_name, "r"))) {
                     62:        fprintf(stderr,
                     63:                "Could not read keymap file: '%s'\n", file_name);
                     64:        return 0;
                     65:     }
                     66:     for(;;) {
                     67:        if (fgets(line, 1024, f) == NULL)
                     68:             break;
                     69:         len = strlen(line);
                     70:         if (len > 0 && line[len - 1] == '\n')
                     71:             line[len - 1] = '\0';
                     72:         if (line[0] == '#')
                     73:            continue;
                     74:        if (!strncmp(line, "map ", 4))
                     75:            continue;
                     76:        if (!strncmp(line, "include ", 8)) {
                     77:            parse_keyboard_layout(line + 8, k);
                     78:         } else {
                     79:            char *end_of_keysym = line;
                     80:            while (*end_of_keysym != 0 && *end_of_keysym != ' ')
                     81:                end_of_keysym++;
                     82:            if (*end_of_keysym) {
                     83:                int keysym;
                     84:                *end_of_keysym = 0;
                     85:                keysym = get_keysym(line);
                     86:                if (keysym == 0) {
                     87:                     //             fprintf(stderr, "Warning: unknown keysym %s\n", line);
                     88:                } else {
                     89:                    const char *rest = end_of_keysym + 1;
                     90:                    int keycode = strtol(rest, NULL, 0);
                     91:                    /* if(keycode&0x80)
                     92:                       keycode=(keycode<<8)^0x80e0; */
                     93:                    if (keysym < MAX_NORMAL_KEYCODE) {
                     94:                        //fprintf(stderr,"Setting keysym %s (%d) to %d\n",line,keysym,keycode);
                     95:                        k->keysym2keycode[keysym] = keycode;
                     96:                    } else {
                     97:                        if (k->extra_count >= MAX_EXTRA_COUNT) {
                     98:                            fprintf(stderr,
                     99:                                    "Warning: Could not assign keysym %s (0x%x) because of memory constraints.\n",
                    100:                                    line, keysym);
                    101:                        } else {
1.1.1.2 ! root      102: #if 0
1.1       root      103:                            fprintf(stderr, "Setting %d: %d,%d\n",
                    104:                                    k->extra_count, keysym, keycode);
1.1.1.2 ! root      105: #endif
1.1       root      106:                            k->keysym2keycode_extra[k->extra_count].
                    107:                                keysym = keysym;
                    108:                            k->keysym2keycode_extra[k->extra_count].
                    109:                                keycode = keycode;
                    110:                            k->extra_count++;
                    111:                        }
                    112:                    }
                    113:                }
                    114:            }
                    115:        }
                    116:     }
                    117:     fclose(f);
                    118:     return k;
                    119: }
                    120: 
                    121: static void *init_keyboard_layout(const char *language)
                    122: {
                    123:     return parse_keyboard_layout(language, 0);
                    124: }
                    125: 
                    126: static int keysym2scancode(void *kbd_layout, int keysym)
                    127: {
                    128:     kbd_layout_t *k = kbd_layout;
                    129:     if (keysym < MAX_NORMAL_KEYCODE) {
                    130:        if (k->keysym2keycode[keysym] == 0)
                    131:            fprintf(stderr, "Warning: no scancode found for keysym %d\n",
                    132:                    keysym);
                    133:        return k->keysym2keycode[keysym];
                    134:     } else {
                    135:        int i;
                    136: #ifdef XK_ISO_Left_Tab
                    137:        if (keysym == XK_ISO_Left_Tab)
                    138:            keysym = XK_Tab;
                    139: #endif
                    140:        for (i = 0; i < k->extra_count; i++)
                    141:            if (k->keysym2keycode_extra[i].keysym == keysym)
                    142:                return k->keysym2keycode_extra[i].keycode;
                    143:     }
                    144:     return 0;
                    145: }

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