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Re: [Qemu-devel] [PATCH 1/2 v4] Support for multiple keyboard devices


From: Anthony Liguori
Subject: Re: [Qemu-devel] [PATCH 1/2 v4] Support for multiple keyboard devices
Date: Mon, 10 May 2010 15:18:29 -0500
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.5) Gecko/20091209 Fedora/3.0-4.fc12 Lightning/1.0pre Thunderbird/3.0

On 04/18/2010 02:21 PM, Shahar Havivi wrote:
Patch add QEMUPutKbdEntry structure - handling each keyboard entry, the 
structure handled
by qemu tail queue.
Adding a new keyboard add to the list and select it, removing keyboard select 
the previous
keyboard in list.

Signed-off-by: Shahar Havivi<address@hidden>

Applied all.  Thanks.

Regards,

Anthony Liguori

---
  console.h            |   14 ++++++++++++-
  hw/adb.c             |    2 +-
  hw/escc.c            |    3 +-
  hw/musicpal.c        |    2 +-
  hw/nseries.c         |    4 +-
  hw/palm.c            |    2 +-
  hw/ps2.c             |    2 +-
  hw/pxa2xx_keypad.c   |    3 +-
  hw/spitz.c           |    3 +-
  hw/stellaris_input.c |    2 +-
  hw/syborg_keyboard.c |    2 +-
  hw/usb-hid.c         |   10 ++++++--
  hw/xenfb.c           |    5 ++-
  input.c              |   51 ++++++++++++++++++++++++++++++++++++++++---------
  14 files changed, 78 insertions(+), 27 deletions(-)

diff --git a/console.h b/console.h
index 6def115..91b66ea 100644
--- a/console.h
+++ b/console.h
@@ -41,7 +41,19 @@ typedef struct QEMUPutLEDEntry {
      QTAILQ_ENTRY(QEMUPutLEDEntry) next;
  } QEMUPutLEDEntry;

-void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque);
+typedef struct QEMUPutKbdEntry {
+    char *qemu_put_kbd_name;
+    QEMUPutKBDEvent *qemu_put_kbd_event;
+    void *qemu_put_kbd_event_opaque;
+    int index;
+
+    QTAILQ_ENTRY(QEMUPutKbdEntry) node;
+} QEMUPutKbdEntry;
+
+QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func,
+                                            void *opaque,
+                                            const char *name);
+void qemu_remove_kbd_event_handler(QEMUPutKbdEntry *entry);
  QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
                                                  void *opaque, int absolute,
                                                  const char *name);
diff --git a/hw/adb.c b/hw/adb.c
index 4fb7a62..09afcf9 100644
--- a/hw/adb.c
+++ b/hw/adb.c
@@ -304,7 +304,7 @@ void adb_kbd_init(ADBBusState *bus)
      s = qemu_mallocz(sizeof(KBDState));
      d = adb_register_device(bus, ADB_KEYBOARD, adb_kbd_request,
                              adb_kbd_reset, s);
-    qemu_add_kbd_event_handler(adb_kbd_put_keycode, d);
+    qemu_add_kbd_event_handler(adb_kbd_put_keycode, d, "adb");
      register_savevm("adb_kbd", -1, 1, adb_kbd_save,
                      adb_kbd_load, s);
  }
diff --git a/hw/escc.c b/hw/escc.c
index 6d2fd36..2b21d98 100644
--- a/hw/escc.c
+++ b/hw/escc.c
@@ -919,7 +919,8 @@ static int escc_init1(SysBusDevice *dev)
                                       "QEMU Sun Mouse");
      }
      if (s->chn[1].type == kbd) {
-        qemu_add_kbd_event_handler(sunkbd_event,&s->chn[1]);
+        qemu_add_kbd_event_handler(sunkbd_event,&s->chn[1],
+                                   "QEMU Sun Keyboard");
      }

      return 0;
diff --git a/hw/musicpal.c b/hw/musicpal.c
index ebd933e..e1a3b6a 100644
--- a/hw/musicpal.c
+++ b/hw/musicpal.c
@@ -1447,7 +1447,7 @@ static int musicpal_key_init(SysBusDevice *dev)

      qdev_init_gpio_out(&dev->qdev, s->out, ARRAY_SIZE(s->out));

-    qemu_add_kbd_event_handler(musicpal_key_event, s);
+    qemu_add_kbd_event_handler(musicpal_key_event, s, "Musicpal");

      return 0;
  }
diff --git a/hw/nseries.c b/hw/nseries.c
index 0273eee..abfcec3 100644
--- a/hw/nseries.c
+++ b/hw/nseries.c
@@ -262,7 +262,7 @@ static void n800_tsc_kbd_setup(struct n800_s *s)
          if (n800_keys[i]>= 0)
              s->keymap[n800_keys[i]] = i;

-    qemu_add_kbd_event_handler(n800_key_event, s);
+    qemu_add_kbd_event_handler(n800_key_event, s, "Nokia n800");

      tsc210x_set_transform(s->ts.chip,&n800_pointercal);
  }
@@ -371,7 +371,7 @@ static void n810_kbd_setup(struct n800_s *s)
          if (n810_keys[i]>  0)
              s->keymap[n810_keys[i]] = i;

-    qemu_add_kbd_event_handler(n810_key_event, s);
+    qemu_add_kbd_event_handler(n810_key_event, s, "Nokia n810");

      /* Attach the LM8322 keyboard to the I2C bus,
       * should happen in n8x0_i2c_setup and s->kbd be initialised here.  */
diff --git a/hw/palm.c b/hw/palm.c
index 6d19167..1b405d4 100644
--- a/hw/palm.c
+++ b/hw/palm.c
@@ -228,7 +228,7 @@ static void palmte_init(ram_addr_t ram_size,

      palmte_microwire_setup(cpu);

-    qemu_add_kbd_event_handler(palmte_button_event, cpu);
+    qemu_add_kbd_event_handler(palmte_button_event, cpu, "Palm Keyboard");

      palmte_gpio_setup(cpu);

diff --git a/hw/ps2.c b/hw/ps2.c
index f0b206a..886da37 100644
--- a/hw/ps2.c
+++ b/hw/ps2.c
@@ -596,7 +596,7 @@ void *ps2_kbd_init(void (*update_irq)(void *, int), void 
*update_arg)
      s->common.update_arg = update_arg;
      s->scancode_set = 2;
      vmstate_register(0,&vmstate_ps2_keyboard, s);
-    qemu_add_kbd_event_handler(ps2_put_keycode, s);
+    qemu_add_kbd_event_handler(ps2_put_keycode, s, "QEMU PS/2 Keyboard");
      qemu_register_reset(ps2_kbd_reset, s);
      return s;
  }
diff --git a/hw/pxa2xx_keypad.c b/hw/pxa2xx_keypad.c
index 060df58..2b75351 100644
--- a/hw/pxa2xx_keypad.c
+++ b/hw/pxa2xx_keypad.c
@@ -332,5 +332,6 @@ void pxa27x_register_keypad(PXA2xxKeyPadState *kp, struct 
keymap *map,
      }

      kp->map = map;
-    qemu_add_kbd_event_handler((QEMUPutKBDEvent *) pxa27x_keyboard_event, kp);
+    qemu_add_kbd_event_handler((QEMUPutKBDEvent *) pxa27x_keyboard_event, kp,
+            "PXA keypad");
  }
diff --git a/hw/spitz.c b/hw/spitz.c
index 564519b..b1c0af0 100644
--- a/hw/spitz.c
+++ b/hw/spitz.c
@@ -506,7 +506,8 @@ static void spitz_keyboard_register(PXA2xxState *cpu)
          pxa2xx_gpio_out_set(cpu->gpio, spitz_gpio_key_strobe[i], 
s->strobe[i]);

      spitz_keyboard_pre_map(s);
-    qemu_add_kbd_event_handler((QEMUPutKBDEvent *) spitz_keyboard_handler, s);
+    qemu_add_kbd_event_handler((QEMUPutKBDEvent *) spitz_keyboard_handler, s,
+            "Spitz keyboard");

      register_savevm("spitz_keyboard", 0, 0,
                      spitz_keyboard_save, spitz_keyboard_load, s);
diff --git a/hw/stellaris_input.c b/hw/stellaris_input.c
index 33395a4..775cb46 100644
--- a/hw/stellaris_input.c
+++ b/hw/stellaris_input.c
@@ -85,7 +85,7 @@ void stellaris_gamepad_init(int n, qemu_irq *irq, const int 
*keycode)
          s->buttons[i].keycode = keycode[i];
      }
      s->num_buttons = n;
-    qemu_add_kbd_event_handler(stellaris_gamepad_put_key, s);
+    qemu_add_kbd_event_handler(stellaris_gamepad_put_key, s, "Stellaris 
Gamepad");
      register_savevm("stellaris_gamepad", -1, 1,
                      stellaris_gamepad_save, stellaris_gamepad_load, s);
  }
diff --git a/hw/syborg_keyboard.c b/hw/syborg_keyboard.c
index 4a562f8..d1651b4 100644
--- a/hw/syborg_keyboard.c
+++ b/hw/syborg_keyboard.c
@@ -218,7 +218,7 @@ static int syborg_keyboard_init(SysBusDevice *dev)
      }
      s->key_fifo = qemu_mallocz(s->fifo_size * sizeof(s->key_fifo[0]));

-    qemu_add_kbd_event_handler(syborg_keyboard_event, s);
+    qemu_add_kbd_event_handler(syborg_keyboard_event, s, "Syborg Keyboard");

      register_savevm("syborg_keyboard", -1, 1,
                      syborg_keyboard_save, syborg_keyboard_load, s);
diff --git a/hw/usb-hid.c b/hw/usb-hid.c
index 8e6c6e0..dbab5d3 100644
--- a/hw/usb-hid.c
+++ b/hw/usb-hid.c
@@ -55,6 +55,7 @@ typedef struct USBKeyboardState {
      uint8_t leds;
      uint8_t key[16];
      int keys;
+    QEMUPutKbdEntry *eh_entry;
  } USBKeyboardState;

  typedef struct USBHIDState {
@@ -633,7 +634,8 @@ static void usb_keyboard_handle_reset(USBDevice *dev)
  {
      USBHIDState *s = (USBHIDState *)dev;

-    qemu_add_kbd_event_handler(usb_keyboard_event, s);
+    s->kbd.eh_entry = qemu_add_kbd_event_handler(usb_keyboard_event, s,
+                                                 dev->product_desc);
      s->protocol = 1;
  }

@@ -854,9 +856,11 @@ static void usb_hid_handle_destroy(USBDevice *dev)
  {
      USBHIDState *s = (USBHIDState *)dev;

-    if (s->kind != USB_KEYBOARD)
+    if (s->kind != USB_KEYBOARD) {
          qemu_remove_mouse_event_handler(s->ptr.eh_entry);
-    /* TODO: else */
+    } else {
+        qemu_remove_kbd_event_handler(s->kbd.eh_entry);
+    }
  }

  static int usb_hid_initfn(USBDevice *dev, int kind)
diff --git a/hw/xenfb.c b/hw/xenfb.c
index 422cd53..0c1d1ec 100644
--- a/hw/xenfb.c
+++ b/hw/xenfb.c
@@ -68,6 +68,7 @@ struct XenInput {
      int button_state;       /* Last seen pointer button state */
      int extended;
      QEMUPutMouseEntry *qmouse;
+    QEMUPutKbdEntry *qkbd;
  };

  #define UP_QUEUE 8
@@ -373,7 +374,7 @@ static int input_connect(struct XenDevice *xendev)
      if (rc != 0)
        return rc;

-    qemu_add_kbd_event_handler(xenfb_key_event, in);
+    in->qkbd = qemu_add_kbd_event_handler(xenfb_key_event, in, "Xen Keyboard");
      in->qmouse = qemu_add_mouse_event_handler(xenfb_mouse_event, in,
                                              in->abs_pointer_wanted,
                                              "Xen PVFB Mouse");
@@ -388,7 +389,7 @@ static void input_disconnect(struct XenDevice *xendev)
        qemu_remove_mouse_event_handler(in->qmouse);
        in->qmouse = NULL;
      }
-    qemu_add_kbd_event_handler(NULL, NULL);
+    qemu_remove_kbd_event_handler(in->qkbd);
      common_unbind(&in->c);
  }

diff --git a/input.c b/input.c
index 8f0941e..18875a9 100644
--- a/input.c
+++ b/input.c
@@ -28,20 +28,14 @@
  #include "console.h"
  #include "qjson.h"

-static QEMUPutKBDEvent *qemu_put_kbd_event;
-static void *qemu_put_kbd_event_opaque;
+static QTAILQ_HEAD(, QEMUPutKbdEntry) kbd_handlers =
+    QTAILQ_HEAD_INITIALIZER(kbd_handlers);
  static QTAILQ_HEAD(, QEMUPutLEDEntry) led_handlers = 
QTAILQ_HEAD_INITIALIZER(led_handlers);
  static QTAILQ_HEAD(, QEMUPutMouseEntry) mouse_handlers =
      QTAILQ_HEAD_INITIALIZER(mouse_handlers);
  static NotifierList mouse_mode_notifiers =
      NOTIFIER_LIST_INITIALIZER(mouse_mode_notifiers);

-void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
-{
-    qemu_put_kbd_event_opaque = opaque;
-    qemu_put_kbd_event = func;
-}
-
  static void check_mode_change(void)
  {
      static int current_is_absolute, current_has_absolute;
@@ -60,6 +54,38 @@ static void check_mode_change(void)
      current_has_absolute = has_absolute;
  }

+QEMUPutKbdEntry *qemu_add_kbd_event_handler(QEMUPutKBDEvent *func,
+                                            void *opaque,
+                                            const char *name)
+{
+    static int index = 0;
+    QEMUPutKbdEntry *s, *cursor;
+
+    QTAILQ_FOREACH(cursor,&kbd_handlers, node) {
+        if (cursor->qemu_put_kbd_event == func&&
+            cursor->qemu_put_kbd_event_opaque == opaque) {
+            return cursor;
+        }
+    }
+
+    s = qemu_mallocz(sizeof(QEMUPutKbdEntry));
+
+    s->qemu_put_kbd_event_opaque = opaque;
+    s->qemu_put_kbd_event = func;
+    s->qemu_put_kbd_name = qemu_strdup(name);
+    s->index = index++;
+
+    QTAILQ_INSERT_TAIL(&kbd_handlers, s, node);
+
+    return s;
+}
+
+void qemu_remove_kbd_event_handler(QEMUPutKbdEntry *entry)
+{
+    QTAILQ_REMOVE(&kbd_handlers, entry, node);
+    qemu_free(entry);
+}
+
  QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
                                                  void *opaque, int absolute,
                                                  const char *name)
@@ -123,9 +149,14 @@ void qemu_remove_led_event_handler(QEMUPutLEDEntry *entry)

  void kbd_put_keycode(int keycode)
  {
-    if (qemu_put_kbd_event) {
-        qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
+    QEMUPutKbdEntry *entry;
+
+    if (QTAILQ_EMPTY(&kbd_handlers)) {
+        return;
      }
+
+    entry = QTAILQ_FIRST(&kbd_handlers);
+    entry->qemu_put_kbd_event(entry->qemu_put_kbd_event_opaque, keycode);
  }

  void kbd_put_ledstate(int ledstate)




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