Patchwork [2/2] Two new monitor commands: 'info keyboard', 'keyboard_set'

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Submitter Dmitry Zhurikhin
Date May 4, 2011, 12:35 p.m.
Message ID <0c081fc40d64e5c3cb561f2547a2d83a50a1fb85.1304437723.git.zhur@ispras.ru>
Download mbox | patch
Permalink /patch/94027/
State New
Headers show

Comments

Dmitry Zhurikhin - May 4, 2011, 12:35 p.m.
From: Shahar Havivi <shaharh@redhat.com>
Adding 2 new monitor commands to handle keyboard list:
'info keyboard' - show all keyboard devices and mark the current one
'keyboard_set'  - set active keyboard by index as displayed by 'info keyboard'

Signed-off-by: Shahar Havivi <shaharh@redhat.com>
---
 console.h       |    4 ++
 hmp-commands.hx |   20 ++++++++++
 input.c         |  105 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 monitor.c       |    8 ++++
 4 files changed, 137 insertions(+), 0 deletions(-)

Patch

diff --git a/console.h b/console.h
index 671390c..c7cb017 100644
--- a/console.h
+++ b/console.h
@@ -90,6 +90,10 @@  void do_info_mice_print(Monitor *mon, const QObject *data);
 void do_info_mice(Monitor *mon, QObject **ret_data);
 void do_mouse_set(Monitor *mon, const QDict *qdict);
 
+void do_info_keyboard_print(Monitor *mon, const QObject *data);
+void do_info_keyboard(Monitor *mon, QObject **ret_data);
+int do_keyboard_set(Monitor *mon, const QDict *qdict, QObject **ret_data);
+
 /* keysym is a unicode code except for special keys (see QEMU_KEY_xxx
    constants) */
 #define QEMU_KEY_ESC1(c) ((c) | 0xe100)
diff --git a/hmp-commands.hx b/hmp-commands.hx
index 834e6a8..0a71225 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -647,6 +647,24 @@  info mice
 @end example
 ETEXI
 
+    {
+        .name       = "keyboard_set",
+        .args_type  = "index:i",
+        .params     = "index",
+        .help       = "set which keyboard device receives events",
+        .mhandler.cmd_new = do_keyboard_set,
+    },
+
+STEXI
+@item keyboard_set @var{index}
+@findex keyboard_set
+Set which keyboard device receives events at given @var{index}, index
+can be obtained with
+@example
+info keyboard
+@end example
+ETEXI
+
 #ifdef HAS_AUDIO
     {
         .name       = "wavcapture",
@@ -1332,6 +1350,8 @@  show the current VM status (running|paused)
 show guest PCMCIA status
 @item info mice
 show which guest mouse is receiving events
+@item info keyboard
+show which guest keyboard is receiving events
 @item info vnc
 show the vnc server status
 @item info name
diff --git a/input.c b/input.c
index efec56e..6590bfb 100644
--- a/input.c
+++ b/input.c
@@ -317,3 +317,108 @@  void qemu_remove_mouse_mode_change_notifier(Notifier *notify)
 {
     notifier_list_remove(&mouse_mode_notifiers, notify);
 }
+
+static void info_keyboard_iter(QObject *data, void *opaque)
+{
+    QDict *kbd;
+    Monitor *mon = opaque;
+
+    kbd = qobject_to_qdict(data);
+    monitor_printf(mon, "%c Keyboard #%" PRId64 ": %s\n",
+                  (qdict_get_bool(kbd, "current") ? '*' : ' '),
+                  qdict_get_int(kbd, "index"), qdict_get_str(kbd, "name"));
+}
+
+void do_info_keyboard_print(Monitor *mon, const QObject *data)
+{
+    QList *kbd_list;
+
+    kbd_list = qobject_to_qlist(data);
+    if (qlist_empty(kbd_list)) {
+        monitor_printf(mon, "No keyboard devices connected\n");
+        return;
+    }
+
+    qlist_iter(kbd_list, info_keyboard_iter, mon);
+}
+
+/*
+ * do_info_keyboard(): Show VM keyboard information
+ *
+ * Each keyboard is represented by a QDict, the returned QObject is
+ * a QList of all keyboards.
+ *
+ * The keyboard QDict contains the following:
+ *
+ * - "name": keyboard's name
+ * - "index": keyboard's index
+ * - "current": true if this keyboard is receiving events, false otherwise
+ *
+ * Example:
+ *
+ * [ { "name": "QEMU USB Keyboard", "index": 0, "current": false },
+ *   { "name": "QEMU PS/2 Keyboard", "index": 1, "current": true } ]
+ */
+void do_info_keyboard(Monitor *mon, QObject **ret_data)
+{
+    QEMUPutKbdEntry *cursor;
+    QList *kbd_list;
+    int current;
+
+    kbd_list = qlist_new();
+
+    if (QTAILQ_EMPTY(&kbd_handlers)) {
+        goto out;
+    }
+
+    current = QTAILQ_FIRST(&kbd_handlers)->index;
+    QTAILQ_FOREACH(cursor, &kbd_handlers, node) {
+        QObject *obj;
+        obj = qobject_from_jsonf("{ 'name': %s,"
+                                 "  'index': %d,"
+                                 "  'current': %i }",
+                                 cursor->qemu_put_kbd_name,
+                                 cursor->index,
+                                 current == cursor->index);
+        qlist_append_obj(kbd_list, obj);
+    }
+out:
+    *ret_data = QOBJECT(kbd_list);
+}
+
+/*
+ * do_keyboard_set(): Set active keyboard
+ *
+ * Argument qdict contains
+ * - "index": the keyboard index to set
+ *
+ * Example:
+ *
+ * { "index": "0" }
+ */
+int do_keyboard_set(Monitor *mon, const QDict *qdict, QObject **ret_data)
+{
+    QEMUPutKbdEntry *cursor;
+    int index = qdict_get_int(qdict, "index");
+    int found = 0;
+
+    if (QTAILQ_EMPTY(&kbd_handlers)) {
+        qerror_report(QERR_DEVICE_NOT_FOUND, "keyboard");
+        return -1;
+    }
+
+    QTAILQ_FOREACH(cursor, &kbd_handlers, node) {
+        if (cursor->index == index) {
+            qemu_activate_keyboard_event_handler(cursor);
+            found = 1;
+            break;
+        }
+    }
+
+    if (!found) {
+        qerror_report(QERR_INVALID_PARAMETER, "index");
+        return -1;
+    }
+
+    return 0;
+}
diff --git a/monitor.c b/monitor.c
index 5f3bc72..d078bcb 100644
--- a/monitor.c
+++ b/monitor.c
@@ -2995,6 +2995,14 @@  static const mon_cmd_t info_cmds[] = {
         .mhandler.info_new = do_info_mice,
     },
     {
+        .name       = "keyboard",
+        .args_type  = "",
+        .params     = "",
+        .help       = "show which guest keyboard is receiving events",
+        .user_print = do_info_keyboard_print,
+        .mhandler.info_new = do_info_keyboard,
+    },
+    {
         .name       = "vnc",
         .args_type  = "",
         .params     = "",