ui/input-legacy.c - qemu-android - Git at Google

 /*
  * QEMU System Emulator
  *
  * Copyright (c) 2003-2008 Fabrice Bellard
  *
  * 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.
  */

 #include "sysemu/sysemu.h"
 #include "monitor/monitor.h"
 #include "ui/console.h"
 #include "qapi/error.h"
 #include "qmp-commands.h"
 #include "qapi-types.h"
 #include "ui/keymaps.h"
 #include "ui/input.h"

 struct QEMUPutMouseEntry {
     QEMUPutMouseEvent *qemu_put_mouse_event;
     void *qemu_put_mouse_event_opaque;
     int qemu_put_mouse_event_absolute;

     /* new input core */
     QemuInputHandler h;
     QemuInputHandlerState *s;
     int axis[INPUT_AXIS_MAX];
     int buttons;
 };

 struct QEMUPutKbdEntry {
     QEMUPutKBDEvent *put_kbd;
     void *opaque;
     QemuInputHandlerState *s;
 };

 struct QEMUPutLEDEntry {
     QEMUPutLEDEvent *put_led;
     void *opaque;
     QTAILQ_ENTRY(QEMUPutLEDEntry) next;
 };

 static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers =
     QTAILQ_HEAD_INITIALIZER(led_handlers);
 static QTAILQ_HEAD(, QEMUPutMouseEntry) mouse_handlers =
     QTAILQ_HEAD_INITIALIZER(mouse_handlers);

 int index_from_key(const char *key)
 {
     int i;

     for (i = 0; QKeyCode_lookup[i] != NULL; i++) {
         if (!strcmp(key, QKeyCode_lookup[i])) {
             break;
         }
     }

     /* Return Q_KEY_CODE_MAX if the key is invalid */
     return i;
 }

 static KeyValue **keyvalues;
 static int keyvalues_size;
 static QEMUTimer *key_timer;

 static void free_keyvalues(void)
 {
     g_free(keyvalues);
     keyvalues = NULL;
     keyvalues_size = 0;
 }

 static void release_keys(void *opaque)
 {
     while (keyvalues_size > 0) {
         qemu_input_event_send_key(NULL, keyvalues[--keyvalues_size],
                                   false);
     }

     free_keyvalues();
 }

 static KeyValue *copy_key_value(KeyValue *src)
 {
     KeyValue *dst = g_new(KeyValue, 1);
     memcpy(dst, src, sizeof(*src));
     return dst;
 }

 void qmp_send_key(KeyValueList *keys, bool has_hold_time, int64_t hold_time,
                   Error **errp)
 {
     KeyValueList *p;

     if (!key_timer) {
         key_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, release_keys, NULL);
     }

     if (keyvalues != NULL) {
         timer_del(key_timer);
         release_keys(NULL);
     }

     if (!has_hold_time) {
         hold_time = 100;
     }

     for (p = keys; p != NULL; p = p->next) {
         qemu_input_event_send_key(NULL, copy_key_value(p->value), true);

         keyvalues = g_realloc(keyvalues, sizeof(KeyValue *) *
                               (keyvalues_size + 1));
         keyvalues[keyvalues_size++] = copy_key_value(p->value);
     }

     /* delayed key up events */
     timer_mod(key_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
               muldiv64(get_ticks_per_sec(), hold_time, 1000));
 }

 static void legacy_kbd_event(DeviceState *dev, QemuConsole *src,
                              InputEvent *evt)
 {
     QEMUPutKbdEntry *entry = (QEMUPutKbdEntry *)dev;
     int scancodes[3], i, count;

     if (!entry || !entry->put_kbd) {
         return;
     }
     count = qemu_input_key_value_to_scancode(evt->key->key,
                                              evt->key->down,
                                              scancodes);
     for (i = 0; i < count; i++) {
         entry->put_kbd(entry->opaque, scancodes[i]);
     }
 }

 static QemuInputHandler legacy_kbd_handler = {
     .name  = "legacy-kbd",
     .mask  = INPUT_EVENT_MASK_KEY,
     .event = legacy_kbd_event,
 };

 QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
 {
     QEMUPutKbdEntry *entry;

     entry = g_new0(QEMUPutKbdEntry, 1);
     entry->put_kbd = func;
     entry->opaque = opaque;
     entry->s = qemu_input_handler_register((DeviceState *)entry,
                                            &legacy_kbd_handler);
     qemu_input_handler_activate(entry->s);
     return entry;
 }

 void qemu_remove_kbd_event_handler(QEMUPutKbdEntry *entry)
 {
     qemu_input_handler_unregister(entry->s);
     g_free(entry);
 }

 static void legacy_mouse_event(DeviceState *dev, QemuConsole *src,
                                InputEvent *evt)
 {
     static const int bmap[INPUT_BUTTON_MAX] = {
         [INPUT_BUTTON_LEFT]   = MOUSE_EVENT_LBUTTON,
         [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
         [INPUT_BUTTON_RIGHT]  = MOUSE_EVENT_RBUTTON,
     };
     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;

     switch (evt->kind) {
     case INPUT_EVENT_KIND_BTN:
         if (evt->btn->down) {
             s->buttons |= bmap[evt->btn->button];
         } else {
             s->buttons &= ~bmap[evt->btn->button];
         }
         if (evt->btn->down && evt->btn->button == INPUT_BUTTON_WHEEL_UP) {
             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
                                     s->axis[INPUT_AXIS_X],
                                     s->axis[INPUT_AXIS_Y],
                                     -1,
                                     s->buttons);
         }
         if (evt->btn->down && evt->btn->button == INPUT_BUTTON_WHEEL_DOWN) {
             s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
                                     s->axis[INPUT_AXIS_X],
                                     s->axis[INPUT_AXIS_Y],
                                     1,
                                     s->buttons);
         }
         break;
     case INPUT_EVENT_KIND_ABS:
         s->axis[evt->abs->axis] = evt->abs->value;
         break;
     case INPUT_EVENT_KIND_REL:
         s->axis[evt->rel->axis] += evt->rel->value;
         break;
     default:
         break;
     }
 }

 static void legacy_mouse_sync(DeviceState *dev)
 {
     QEMUPutMouseEntry *s = (QEMUPutMouseEntry *)dev;

     s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
                             s->axis[INPUT_AXIS_X],
                             s->axis[INPUT_AXIS_Y],
                             0,
                             s->buttons);

     if (!s->qemu_put_mouse_event_absolute) {
         s->axis[INPUT_AXIS_X] = 0;
         s->axis[INPUT_AXIS_Y] = 0;
     }
 }

 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
                                                 void *opaque, int absolute,
                                                 const char *name)
 {
     QEMUPutMouseEntry *s;

     s = g_malloc0(sizeof(QEMUPutMouseEntry));

     s->qemu_put_mouse_event = func;
     s->qemu_put_mouse_event_opaque = opaque;
     s->qemu_put_mouse_event_absolute = absolute;

     s->h.name = name;
     s->h.mask = INPUT_EVENT_MASK_BTN |
         (absolute ? INPUT_EVENT_MASK_ABS : INPUT_EVENT_MASK_REL);
     s->h.event = legacy_mouse_event;
     s->h.sync = legacy_mouse_sync;
     s->s = qemu_input_handler_register((DeviceState *)s,
                                        &s->h);

     return s;
 }

 void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
 {
     qemu_input_handler_activate(entry->s);
 }

 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
 {
     qemu_input_handler_unregister(entry->s);

     g_free(entry);
 }

 QEMUPutLEDEntry *qemu_add_led_event_handler(QEMUPutLEDEvent *func,
                                             void *opaque)
 {
     QEMUPutLEDEntry *s;

     s = g_malloc0(sizeof(QEMUPutLEDEntry));

     s->put_led = func;
     s->opaque = opaque;
     QTAILQ_INSERT_TAIL(&led_handlers, s, next);
     return s;
 }

 void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
 {
     if (entry == NULL)
         return;
     QTAILQ_REMOVE(&led_handlers, entry, next);
     g_free(entry);
 }

 void kbd_put_ledstate(int ledstate)
 {
     QEMUPutLEDEntry *cursor;

     QTAILQ_FOREACH(cursor, &led_handlers, next) {
         cursor->put_led(cursor->opaque, ledstate);
     }
 }
	/*
	* QEMU System Emulator
	*
	* Copyright (c) 2003-2008 Fabrice Bellard
	*
	* 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.
	*/

	#include "sysemu/sysemu.h"
	#include "monitor/monitor.h"
	#include "ui/console.h"
	#include "qapi/error.h"
	#include "qmp-commands.h"
	#include "qapi-types.h"
	#include "ui/keymaps.h"
	#include "ui/input.h"

	struct QEMUPutMouseEntry {
	QEMUPutMouseEvent *qemu_put_mouse_event;
	void *qemu_put_mouse_event_opaque;
	int qemu_put_mouse_event_absolute;

	/* new input core */
	QemuInputHandler h;
	QemuInputHandlerState *s;
	int axis[INPUT_AXIS_MAX];
	int buttons;
	};

	struct QEMUPutKbdEntry {
	QEMUPutKBDEvent *put_kbd;
	void *opaque;
	QemuInputHandlerState *s;
	};

	struct QEMUPutLEDEntry {
	QEMUPutLEDEvent *put_led;
	void *opaque;
	QTAILQ_ENTRY(QEMUPutLEDEntry) next;
	};

	static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers =
	QTAILQ_HEAD_INITIALIZER(led_handlers);
	static QTAILQ_HEAD(, QEMUPutMouseEntry) mouse_handlers =
	QTAILQ_HEAD_INITIALIZER(mouse_handlers);

	int index_from_key(const char *key)
	{
	int i;

	for (i = 0; QKeyCode_lookup[i] != NULL; i++) {
	if (!strcmp(key, QKeyCode_lookup[i])) {
	break;
	}
	}

	/* Return Q_KEY_CODE_MAX if the key is invalid */
	return i;
	}

	static KeyValue **keyvalues;
	static int keyvalues_size;
	static QEMUTimer *key_timer;

	static void free_keyvalues(void)
	{
	g_free(keyvalues);
	keyvalues = NULL;
	keyvalues_size = 0;
	}

	static void release_keys(void *opaque)
	{
	while (keyvalues_size > 0) {
	qemu_input_event_send_key(NULL, keyvalues[--keyvalues_size],
	false);
	}

	free_keyvalues();
	}

	static KeyValue copy_key_value(KeyValue src)
	{
	KeyValue *dst = g_new(KeyValue, 1);
	memcpy(dst, src, sizeof(*src));
	return dst;
	}

	void qmp_send_key(KeyValueList *keys, bool has_hold_time, int64_t hold_time,
	Error **errp)
	{
	KeyValueList *p;

	if (!key_timer) {
	key_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, release_keys, NULL);
	}

	if (keyvalues != NULL) {
	timer_del(key_timer);
	release_keys(NULL);
	}

	if (!has_hold_time) {
	hold_time = 100;
	}

	for (p = keys; p != NULL; p = p->next) {
	qemu_input_event_send_key(NULL, copy_key_value(p->value), true);

	keyvalues = g_realloc(keyvalues, sizeof(KeyValue )
	(keyvalues_size + 1));
	keyvalues[keyvalues_size++] = copy_key_value(p->value);
	}

	/* delayed key up events */
	timer_mod(key_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
	muldiv64(get_ticks_per_sec(), hold_time, 1000));
	}

	static void legacy_kbd_event(DeviceState dev, QemuConsole src,
	InputEvent *evt)
	{
	QEMUPutKbdEntry entry = (QEMUPutKbdEntry )dev;
	int scancodes[3], i, count;

	if (!entry \|\| !entry->put_kbd) {
	return;
	}
	count = qemu_input_key_value_to_scancode(evt->key->key,
	evt->key->down,
	scancodes);
	for (i = 0; i < count; i++) {
	entry->put_kbd(entry->opaque, scancodes[i]);
	}
	}

	static QemuInputHandler legacy_kbd_handler = {
	.name = "legacy-kbd",
	.mask = INPUT_EVENT_MASK_KEY,
	.event = legacy_kbd_event,
	};

	QEMUPutKbdEntry qemu_add_kbd_event_handler(QEMUPutKBDEvent func, void *opaque)
	{
	QEMUPutKbdEntry *entry;

	entry = g_new0(QEMUPutKbdEntry, 1);
	entry->put_kbd = func;
	entry->opaque = opaque;
	entry->s = qemu_input_handler_register((DeviceState *)entry,
	&legacy_kbd_handler);
	qemu_input_handler_activate(entry->s);
	return entry;
	}

	void qemu_remove_kbd_event_handler(QEMUPutKbdEntry *entry)
	{
	qemu_input_handler_unregister(entry->s);
	g_free(entry);
	}

	static void legacy_mouse_event(DeviceState dev, QemuConsole src,
	InputEvent *evt)
	{
	static const int bmap[INPUT_BUTTON_MAX] = {
	[INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON,
	[INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
	[INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON,
	};
	QEMUPutMouseEntry s = (QEMUPutMouseEntry )dev;

	switch (evt->kind) {
	case INPUT_EVENT_KIND_BTN:
	if (evt->btn->down) {
	s->buttons \|= bmap[evt->btn->button];
	} else {
	s->buttons &= ~bmap[evt->btn->button];
	}
	if (evt->btn->down && evt->btn->button == INPUT_BUTTON_WHEEL_UP) {
	s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
	s->axis[INPUT_AXIS_X],
	s->axis[INPUT_AXIS_Y],
	-1,
	s->buttons);
	}
	if (evt->btn->down && evt->btn->button == INPUT_BUTTON_WHEEL_DOWN) {
	s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
	s->axis[INPUT_AXIS_X],
	s->axis[INPUT_AXIS_Y],
	1,
	s->buttons);
	}
	break;
	case INPUT_EVENT_KIND_ABS:
	s->axis[evt->abs->axis] = evt->abs->value;
	break;
	case INPUT_EVENT_KIND_REL:
	s->axis[evt->rel->axis] += evt->rel->value;
	break;
	default:
	break;
	}
	}

	static void legacy_mouse_sync(DeviceState *dev)
	{
	QEMUPutMouseEntry s = (QEMUPutMouseEntry )dev;

	s->qemu_put_mouse_event(s->qemu_put_mouse_event_opaque,
	s->axis[INPUT_AXIS_X],
	s->axis[INPUT_AXIS_Y],
	0,
	s->buttons);

	if (!s->qemu_put_mouse_event_absolute) {
	s->axis[INPUT_AXIS_X] = 0;
	s->axis[INPUT_AXIS_Y] = 0;
	}
	}

	QEMUPutMouseEntry qemu_add_mouse_event_handler(QEMUPutMouseEvent func,
	void *opaque, int absolute,
	const char *name)
	{
	QEMUPutMouseEntry *s;

	s = g_malloc0(sizeof(QEMUPutMouseEntry));

	s->qemu_put_mouse_event = func;
	s->qemu_put_mouse_event_opaque = opaque;
	s->qemu_put_mouse_event_absolute = absolute;

	s->h.name = name;
	s->h.mask = INPUT_EVENT_MASK_BTN \|
	(absolute ? INPUT_EVENT_MASK_ABS : INPUT_EVENT_MASK_REL);
	s->h.event = legacy_mouse_event;
	s->h.sync = legacy_mouse_sync;
	s->s = qemu_input_handler_register((DeviceState *)s,
	&s->h);

	return s;
	}

	void qemu_activate_mouse_event_handler(QEMUPutMouseEntry *entry)
	{
	qemu_input_handler_activate(entry->s);
	}

	void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
	{
	qemu_input_handler_unregister(entry->s);

	g_free(entry);
	}

	QEMUPutLEDEntry qemu_add_led_event_handler(QEMUPutLEDEvent func,
	void *opaque)
	{
	QEMUPutLEDEntry *s;

	s = g_malloc0(sizeof(QEMUPutLEDEntry));

	s->put_led = func;
	s->opaque = opaque;
	QTAILQ_INSERT_TAIL(&led_handlers, s, next);
	return s;
	}

	void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)
	{
	if (entry == NULL)
	return;
	QTAILQ_REMOVE(&led_handlers, entry, next);
	g_free(entry);
	}

	void kbd_put_ledstate(int ledstate)
	{
	QEMUPutLEDEntry *cursor;

	QTAILQ_FOREACH(cursor, &led_handlers, next) {
	cursor->put_led(cursor->opaque, ledstate);
	}
	}