ui/input-legacy.c

   1 /*
   2  * QEMU System Emulator
   3  *
   4  * Copyright (c) 2003-2008 Fabrice Bellard
   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 "sysemu/sysemu.h"
  26 #include "monitor/monitor.h"
  27 #include "ui/console.h"
  28 #include "qapi/error.h"
  29 #include "qmp-commands.h"
  30 #include "qapi-types.h"
  31 #include "ui/keymaps.h"
  32 #include "ui/input.h"
  33
  34 struct QEMUPutMouseEntry {
  35     QEMUPutMouseEvent *qemu_put_mouse_event;
  36     void *qemu_put_mouse_event_opaque;
  37     int qemu_put_mouse_event_absolute;
  38
  39     /* new input core */
  40     QemuInputHandler h;
  41     QemuInputHandlerState *s;
  42     int axis[INPUT_AXIS_MAX];
  43     int buttons;
  44 };
  45
  46 struct QEMUPutKbdEntry {
  47     QEMUPutKBDEvent *put_kbd;
  48     void *opaque;
  49     QemuInputHandlerState *s;
  50 };
  51
  52 struct QEMUPutLEDEntry {
  53     QEMUPutLEDEvent *put_led;
  54     void *opaque;
  55     QTAILQ_ENTRY(QEMUPutLEDEntry) next;
  56 };
  57
  58 static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers =
  59     QTAILQ_HEAD_INITIALIZER(led_handlers);
  60 static QTAILQ_HEAD(, QEMUPutMouseEntry) mouse_handlers =
  61     QTAILQ_HEAD_INITIALIZER(mouse_handlers);
  62
  63 int index_from_key(const char *key)
  64 {
  65     int i;
  66
  67     for (i = 0; QKeyCode_lookup[i] != NULL; i++) {
  68         if (!strcmp(key, QKeyCode_lookup[i])) {
  69             break;
  70         }
  71     }
  72
  73     /* Return Q_KEY_CODE_MAX if the key is invalid */
  74     return i;
  75 }
  76
  77 static KeyValue **keyvalues;
  78 static int keyvalues_size;
  79 static QEMUTimer *key_timer;
  80
  81 static void free_keyvalues(void)
  82 {
  83     g_free(keyvalues);
  84     keyvalues = NULL;
  85     keyvalues_size = 0;
  86 }
  87
  88 static void release_keys(void *opaque)
  89 {
  90     while (keyvalues_size > 0) {
  91         qemu_input_event_send_key(NULL, keyvalues[--keyvalues_size],
  92                                   false);
  93     }
  94
  95     free_keyvalues();
  96 }
  97
  98 static KeyValue *copy_key_value(KeyValue *src)
  99 {
 100     KeyValue *dst = g_new(KeyValue, 1);
 101     memcpy(dst, src, sizeof(*src));
 102     return dst;
 103 }
 104
 105 void qmp_send_key(KeyValueList *keys, bool has_hold_time, int64_t hold_time,
 106                   Error **errp)
 107 {
 108     KeyValueList *p;
 109
 110     if (!key_timer) {
 111         key_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, release_keys, NULL);
 112     }
 113
 114     if (keyvalues != NULL) {
 115         timer_del(key_timer);
 116         release_keys(NULL);
 117     }
 118
 119     if (!has_hold_time) {
 120         hold_time = 100;
 121     }
 122
 123     for (p = keys; p != NULL; p = p->next) {
 124         qemu_input_event_send_key(NULL, copy_key_value(p->value), true);
 125
 126         keyvalues = g_realloc(keyvalues, sizeof(KeyValue *) *
 127                               (keyvalues_size + 1));
 128         keyvalues[keyvalues_size++] = copy_key_value(p->value);
 129     }
 130
 131     /* delayed key up events */
 132     timer_mod(key_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
 133               muldiv64(get_ticks_per_sec(), hold_time, 1000));
 134 }
 135
 136 static void legacy_kbd_event(DeviceState *dev, QemuConsole *src,
 137                              InputEvent *evt)
 138 {
 139     QEMUPutKbdEntry *entry = (QEMUPutKbdEntry *)dev;
 140     int scancodes[3], i, count;
 141
 142     if (!entry || !entry->put_kbd) {
 143         return;
 144     }
 145     count = qemu_input_key_value_to_scancode(evt->key->key,
 146                                              evt->key->down,
 147                                              scancodes);
 148     for (i = 0; i < count; i++) {
 149         entry->put_kbd(entry->opaque, scancodes[i]);
 150     }
 151 }
 152
 153 static QemuInputHandler legacy_kbd_handler = {
 154     .name  = "legacy-kbd",
 155     .mask  = INPUT_EVENT_MASK_KEY,
 156     .event = legacy_kbd_event,
 157 };
 158
 159 QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
 160 {
 161     QEMUPutKbdEntry *entry;
 162
 163     entry = g_new0(QEMUPutKbdEntry, 1);
 164     entry->put_kbd = func;
 165     entry->opaque = opaque;
 166     entry->s = qemu_input_handler_register((DeviceState *)entry,
 167                                            &legacy_kbd_handler);
 168     qemu_input_handler_activate(entry->s);
 169     return entry;
 170 }
 171
 172 void qemu_remove_kbd_event_handler(QEMUPutKbdEntry *entry)
 173 {
 174     qemu_input_handler_unregister(entry->s);
 175     g_free(entry);
 176 }
 177
 178 static void legacy_mouse_event(DeviceState *dev, QemuConsole *src,
 179                                InputEvent *evt)
 180 {
 181     static const int bmap[INPUT_BUTTON_MAX] = {
 182         [INPUT_BUTTON_LEFT]   = MOUSE_EVENT_LBUTTON,
 183         [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
 184         [INPUT_BUTTON_RIGHT]  = MOUSE_EVENT_RBUTTON,
 185     };
 186     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 187
 188     switch (evt->kind) {
 189     case INPUT_EVENT_KIND_BTN:
 190         if (evt->btn->down) {
 191             s->buttons |= bmap[evt->btn->button];
 192         } else {
 193             s->buttons &= ~bmap[evt->btn->button];
 194         }
 195         if (evt->btn->down && evt->btn->button == INPUT_BUTTON_WHEEL_UP) {
 196             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 197                                     s->axis[INPUT_AXIS_X],
 198                                     s->axis[INPUT_AXIS_Y],
 199                                     -1,
 200                                     s->buttons);
 201         }
 202         if (evt->btn->down && evt->btn->button == INPUT_BUTTON_WHEEL_DOWN) {
 203             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 204                                     s->axis[INPUT_AXIS_X],
 205                                     s->axis[INPUT_AXIS_Y],
 206                                     1,
 207                                     s->buttons);
 208         }
 209         break;
 210     case INPUT_EVENT_KIND_ABS:
 211         s->axis[evt->abs->axis] = evt->abs->value;
 212         break;
 213     case INPUT_EVENT_KIND_REL:
 214         s->axis[evt->rel->axis] += evt->rel->value;
 215         break;
 216     default:
 217         break;
 218     }
 219 }
 220
 221 static void legacy_mouse_sync(DeviceState *dev)
 222 {
 223     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;
 224
 225     s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
 226                             s->axis[INPUT_AXIS_X],
 227                             s->axis[INPUT_AXIS_Y],
 228                             0,
 229                             s->buttons);
 230
 231     if (!s->qemu_put_mouse_event_absolute) {
 232         s->axis[INPUT_AXIS_X] = 0;
 233         s->axis[INPUT_AXIS_Y] = 0;
 234     }
 235 }
 236
 237 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
 238                                                 void *opaque, int absolute,
 239                                                 const char *name)
 240 {
 241     QEMUPutMouseEntry *s;
 242
 243     s = g_malloc0(sizeof(QEMUPutMouseEntry));
 244
 245     s->qemu_put_mouse_event = func;
 246     s->qemu_put_mouse_event_opaque = opaque;
 247     s->qemu_put_mouse_event_absolute = absolute;
 248
 249     s->h.name = name;
 250     s->h.mask = INPUT_EVENT_MASK_BTN |
 251         (absolute ? INPUT_EVENT_MASK_ABS : INPUT_EVENT_MASK_REL);
 252     s->h.event = legacy_mouse_event;
 253     s->h.sync = legacy_mouse_sync;
 254     s->s = qemu_input_handler_register((DeviceState *)s,
 255                                        &s->h);
 256
 257     return s;
 258 }
 259
 260 void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
 261 {
 262     qemu_input_handler_activate(entry->s);
 263 }
 264
 265 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
 266 {
 267     qemu_input_handler_unregister(entry->s);
 268
 269     g_free(entry);
 270 }
 271
 272 QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
 273                                             void *opaque)
 274 {
 275     QEMUPutLEDEntry *s;
 276
 277     s = g_malloc0(sizeof(QEMUPutLEDEntry));
 278
 279     s->put_led = func;
 280     s->opaque = opaque;
 281     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
 282     return s;
 283 }
 284
 285 void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
 286 {
 287     if (entry == NULL)
 288         return;
 289     QTAILQ_REMOVE(&led_handlers, entry, next);
 290     g_free(entry);
 291 }
 292
 293 void kbd_put_ledstate(int ledstate)
 294 {
 295     QEMUPutLEDEntry *cursor;
 296
 297     QTAILQ_FOREACH(cursor, &led_handlers, next) {
 298         cursor->put_led(cursor->opaque, ledstate);
 299     }
 300 }