spitz: QOM cast cleanup for SpitzKeyboardState

Introduce a type constant, use QOM casts, rename the parent field and
prepare for QOM realize.

Signed-off-by: Andreas Färber <afaerber@suse.de>

diff --git a/hw/arm/spitz.c b/hw/arm/spitz.c
index 0bf5c5c..34f9582 100644 (file)
--- a/hw/arm/spitz.c
+++ b/hw/arm/spitz.c
@@ -215,8 +215,13 @@ static const int spitz_gpiomap[5] = {
     SPITZ_GPIO_SWA, SPITZ_GPIO_SWB,
 };
 
+#define TYPE_SPITZ_KEYBOARD "spitz-keyboard"
+#define SPITZ_KEYBOARD(obj) \
+    OBJECT_CHECK(SpitzKeyboardState, (obj), TYPE_SPITZ_KEYBOARD)
+
 typedef struct {
-    SysBusDevice busdev;
+    SysBusDevice parent_obj;
+
     qemu_irq sense[SPITZ_KEY_SENSE_NUM];
     qemu_irq gpiomap[5];
     int keymap[0x80];
@@ -461,8 +466,8 @@ static void spitz_keyboard_register(PXA2xxState *cpu)
     DeviceState *dev;
     SpitzKeyboardState *s;
 
-    dev = sysbus_create_simple("spitz-keyboard", -1, NULL);
-    s = FROM_SYSBUS(SpitzKeyboardState, SYS_BUS_DEVICE(dev));
+    dev = sysbus_create_simple(TYPE_SPITZ_KEYBOARD, -1, NULL);
+    s = SPITZ_KEYBOARD(dev);
 
     for (i = 0; i < SPITZ_KEY_SENSE_NUM; i ++)
         qdev_connect_gpio_out(dev, i, qdev_get_gpio_in(cpu->gpio, spitz_gpio_key_sense[i]));
@@ -485,13 +490,12 @@ static void spitz_keyboard_register(PXA2xxState *cpu)
     qemu_add_kbd_event_handler(spitz_keyboard_handler, s);
 }
 
-static int spitz_keyboard_init(SysBusDevice *dev)
+static int spitz_keyboard_init(SysBusDevice *sbd)
 {
-    SpitzKeyboardState *s;
+    DeviceState *dev = DEVICE(sbd);
+    SpitzKeyboardState *s = SPITZ_KEYBOARD(dev);
     int i, j;
 
-    s = FROM_SYSBUS(SpitzKeyboardState, dev);
-
     for (i = 0; i < 0x80; i ++)
         s->keymap[i] = -1;
     for (i = 0; i < SPITZ_KEY_SENSE_NUM + 1; i ++)
@@ -502,8 +506,8 @@ static int spitz_keyboard_init(SysBusDevice *dev)
     spitz_keyboard_pre_map(s);
 
     s->kbdtimer = qemu_new_timer_ns(vm_clock, spitz_keyboard_tick, s);
-    qdev_init_gpio_in(&dev->qdev, spitz_keyboard_strobe, SPITZ_KEY_STROBE_NUM);
-    qdev_init_gpio_out(&dev->qdev, s->sense, SPITZ_KEY_SENSE_NUM);
+    qdev_init_gpio_in(dev, spitz_keyboard_strobe, SPITZ_KEY_STROBE_NUM);
+    qdev_init_gpio_out(dev, s->sense, SPITZ_KEY_SENSE_NUM);
 
     return 0;
 }
@@ -1065,7 +1069,7 @@ static void spitz_keyboard_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo spitz_keyboard_info = {
-    .name          = "spitz-keyboard",
+    .name          = TYPE_SPITZ_KEYBOARD,
     .parent        = TYPE_SYS_BUS_DEVICE,
     .instance_size = sizeof(SpitzKeyboardState),
     .class_init    = spitz_keyboard_class_init,