Record device property types

[qemu.git] / hw / qdev.h

diff --git a/hw/qdev.h b/hw/qdev.h
index 5a34f510389f664313166702b85f5378ae85873d..5de0573fdb86d2f3d2bb1f23a04000231f45019e 100644 (file)
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -2,68 +2,102 @@
 #define QDEV_H
 
 #include "hw.h"
+#include "sys-queue.h"
 
 typedef struct DeviceType DeviceType;
 
 typedef struct DeviceProperty DeviceProperty;
 
-typedef struct ChildBusList ChildBusList;
+typedef struct BusState BusState;
 
 /* This structure should not be accessed directly.  We declare it here
    so that it can be embedded in individual device state structures.  */
-struct DeviceState
-{
-    const char *name;
+struct DeviceState {
     DeviceType *type;
-    void *bus;
+    BusState *parent_bus;
     DeviceProperty *props;
-    int num_irq_sink;
-    qemu_irq *irq_sink;
     int num_gpio_out;
     qemu_irq *gpio_out;
     int num_gpio_in;
     qemu_irq *gpio_in;
-    ChildBusList *child_bus;
+    LIST_HEAD(, BusState) child_bus;
     NICInfo *nd;
+    LIST_ENTRY(DeviceState) sibling;
+};
+
+typedef enum {
+    BUS_TYPE_SYSTEM,
+    BUS_TYPE_PCI,
+    BUS_TYPE_SCSI,
+    BUS_TYPE_I2C,
+    BUS_TYPE_SSI
+} BusType;
+
+struct BusState {
+    DeviceState *parent;
+    const char *name;
+    BusType type;
+    LIST_HEAD(, DeviceState) children;
+    LIST_ENTRY(BusState) sibling;
 };
 
 /*** Board API.  This should go away once we have a machine config file.  ***/
 
-DeviceState *qdev_create(void *bus, const char *name);
+DeviceState *qdev_create(BusState *bus, const char *name);
 void qdev_init(DeviceState *dev);
+void qdev_free(DeviceState *dev);
 
 /* Set properties between creation and init.  */
 void qdev_set_prop_int(DeviceState *dev, const char *name, uint64_t value);
+void qdev_set_prop_dev(DeviceState *dev, const char *name, DeviceState *value);
 void qdev_set_prop_ptr(DeviceState *dev, const char *name, void *value);
 void qdev_set_netdev(DeviceState *dev, NICInfo *nd);
 
-qemu_irq qdev_get_irq_sink(DeviceState *dev, int n);
 qemu_irq qdev_get_gpio_in(DeviceState *dev, int n);
 void qdev_connect_gpio_out(DeviceState *dev, int n, qemu_irq pin);
 
-void *qdev_get_child_bus(DeviceState *dev, const char *name);
+BusState *qdev_get_child_bus(DeviceState *dev, const char *name);
 
 /*** Device API.  ***/
 
-typedef void (*qdev_initfn)(DeviceState *dev, void *opaque);
+typedef enum {
+    PROP_TYPE_INT,
+    PROP_TYPE_PTR,
+    PROP_TYPE_DEV
+} DevicePropType;
+
+typedef struct {
+    const char *name;
+    DevicePropType type;
+} DevicePropList;
+
+typedef struct DeviceInfo DeviceInfo;
+
+typedef void (*qdev_initfn)(DeviceState *dev, DeviceInfo *info);
 typedef void (*SCSIAttachFn)(DeviceState *host, BlockDriverState *bdrv,
               int unit);
 
-DeviceType *qdev_register(const char *name, int size, qdev_initfn init,
-                          void *opaque);
+struct DeviceInfo {
+    qdev_initfn init;
+    BusType bus_type;
+    DevicePropList *props;
+};
+
+void qdev_register(const char *name, int size, DeviceInfo *info);
 
 /* Register device properties.  */
-void qdev_init_irq_sink(DeviceState *dev, qemu_irq_handler handler, int nirq);
+/* GPIO inputs also double as IRQ sinks.  */
 void qdev_init_gpio_in(DeviceState *dev, qemu_irq_handler handler, int n);
 void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n);
-void qdev_attach_child_bus(DeviceState *dev, const char *name, void *bus);
 
 void scsi_bus_new(DeviceState *host, SCSIAttachFn attach);
 
 CharDriverState *qdev_init_chardev(DeviceState *dev);
 
-void *qdev_get_bus(DeviceState *dev);
+BusState *qdev_get_parent_bus(DeviceState *dev);
 uint64_t qdev_get_prop_int(DeviceState *dev, const char *name, uint64_t def);
+DeviceState *qdev_get_prop_dev(DeviceState *dev, const char *name);
+/* FIXME: Remove opaque pointer properties.  */
 void *qdev_get_prop_ptr(DeviceState *dev, const char *name);
 
 /* Convery from a base type to a parent type, with compile time checking.  */
@@ -76,4 +110,11 @@ void *qdev_get_prop_ptr(DeviceState *dev, const char *name);
 #define DO_UPCAST(type, field, dev) container_of(dev, type, field)
 #endif
 
+/*** BUS API. ***/
+
+BusState *qbus_create(BusType type, size_t size,
+                      DeviceState *parent, const char *name);
+
+#define FROM_QBUS(type, dev) DO_UPCAST(type, qbus, dev)
+
 #endif