From 8b23a6c7e1aee255004dd19098d4c2462b61b849 Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Tue, 3 Mar 2009 19:30:32 -0800 Subject: auto import from //depot/cupcake/@135843 --- keymaps.c | 207 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 207 insertions(+) create mode 100644 keymaps.c (limited to 'keymaps.c') diff --git a/keymaps.c b/keymaps.c new file mode 100644 index 0000000..15c40fa --- /dev/null +++ b/keymaps.c @@ -0,0 +1,207 @@ +/* + * QEMU keysym to keycode conversion using rdesktop keymaps + * + * Copyright (c) 2004 Johannes Schindelin + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +static int get_keysym(const char *name) +{ + name2keysym_t *p; + for(p = name2keysym; p->name != NULL; p++) { + if (!strcmp(p->name, name)) + return p->keysym; + } + return 0; +} + +struct key_range { + int start; + int end; + struct key_range *next; +}; + +#define MAX_NORMAL_KEYCODE 512 +#define MAX_EXTRA_COUNT 256 +typedef struct { + uint16_t keysym2keycode[MAX_NORMAL_KEYCODE]; + struct { + int keysym; + uint16_t keycode; + } keysym2keycode_extra[MAX_EXTRA_COUNT]; + int extra_count; + struct key_range *keypad_range; + struct key_range *numlock_range; +} kbd_layout_t; + +static void add_to_key_range(struct key_range **krp, int code) { + struct key_range *kr; + for (kr = *krp; kr; kr = kr->next) { + if (code >= kr->start && code <= kr->end) + break; + if (code == kr->start - 1) { + kr->start--; + break; + } + if (code == kr->end + 1) { + kr->end++; + break; + } + } + if (kr == NULL) { + kr = qemu_mallocz(sizeof(*kr)); + if (kr) { + kr->start = kr->end = code; + kr->next = *krp; + *krp = kr; + } + } +} + +static kbd_layout_t *parse_keyboard_layout(const char *language, + kbd_layout_t * k) +{ + FILE *f; + char file_name[1024]; + char line[1024]; + int len; + + snprintf(file_name, sizeof(file_name), + "%s/keymaps/%s", bios_dir, language); + + if (!k) + k = qemu_mallocz(sizeof(kbd_layout_t)); + if (!k) + return 0; + if (!(f = fopen(file_name, "r"))) { + fprintf(stderr, + "Could not read keymap file: '%s'\n", file_name); + return 0; + } + for(;;) { + if (fgets(line, 1024, f) == NULL) + break; + len = strlen(line); + if (len > 0 && line[len - 1] == '\n') + line[len - 1] = '\0'; + if (line[0] == '#') + continue; + if (!strncmp(line, "map ", 4)) + continue; + if (!strncmp(line, "include ", 8)) { + parse_keyboard_layout(line + 8, k); + } else { + char *end_of_keysym = line; + while (*end_of_keysym != 0 && *end_of_keysym != ' ') + end_of_keysym++; + if (*end_of_keysym) { + int keysym; + *end_of_keysym = 0; + keysym = get_keysym(line); + if (keysym == 0) { + // fprintf(stderr, "Warning: unknown keysym %s\n", line); + } else { + const char *rest = end_of_keysym + 1; + char *rest2; + int keycode = strtol(rest, &rest2, 0); + + if (rest && strstr(rest, "numlock")) { + add_to_key_range(&k->keypad_range, keycode); + add_to_key_range(&k->numlock_range, keysym); + //fprintf(stderr, "keypad keysym %04x keycode %d\n", keysym, keycode); + } + + /* if(keycode&0x80) + keycode=(keycode<<8)^0x80e0; */ + if (keysym < MAX_NORMAL_KEYCODE) { + //fprintf(stderr,"Setting keysym %s (%d) to %d\n",line,keysym,keycode); + k->keysym2keycode[keysym] = keycode; + } else { + if (k->extra_count >= MAX_EXTRA_COUNT) { + fprintf(stderr, + "Warning: Could not assign keysym %s (0x%x) because of memory constraints.\n", + line, keysym); + } else { +#if 0 + fprintf(stderr, "Setting %d: %d,%d\n", + k->extra_count, keysym, keycode); +#endif + k->keysym2keycode_extra[k->extra_count]. + keysym = keysym; + k->keysym2keycode_extra[k->extra_count]. + keycode = keycode; + k->extra_count++; + } + } + } + } + } + } + fclose(f); + return k; +} + +static void *init_keyboard_layout(const char *language) +{ + return parse_keyboard_layout(language, 0); +} + +static int keysym2scancode(void *kbd_layout, int keysym) +{ + kbd_layout_t *k = kbd_layout; + if (keysym < MAX_NORMAL_KEYCODE) { + if (k->keysym2keycode[keysym] == 0) + fprintf(stderr, "Warning: no scancode found for keysym %d\n", + keysym); + return k->keysym2keycode[keysym]; + } else { + int i; +#ifdef XK_ISO_Left_Tab + if (keysym == XK_ISO_Left_Tab) + keysym = XK_Tab; +#endif + for (i = 0; i < k->extra_count; i++) + if (k->keysym2keycode_extra[i].keysym == keysym) + return k->keysym2keycode_extra[i].keycode; + } + return 0; +} + +static inline int keycode_is_keypad(void *kbd_layout, int keycode) +{ + kbd_layout_t *k = kbd_layout; + struct key_range *kr; + + for (kr = k->keypad_range; kr; kr = kr->next) + if (keycode >= kr->start && keycode <= kr->end) + return 1; + return 0; +} + +static inline int keysym_is_numlock(void *kbd_layout, int keysym) +{ + kbd_layout_t *k = kbd_layout; + struct key_range *kr; + + for (kr = k->numlock_range; kr; kr = kr->next) + if (keysym >= kr->start && keysym <= kr->end) + return 1; + return 0; +} -- cgit v1.1