Merge branch 'master' of /home/nchip/public_html/qemu into garage-push

[qemu] / hw / qdev.h

diff --git a/hw/qdev.h b/hw/qdev.h
new file mode 100644 (file)
index 0000000..7291805
--- /dev/null
+++ b/hw/qdev.h
@@ -0,0 +1,125 @@
+#ifndef QDEV_H
+#define QDEV_H
+
+#include "hw.h"
+#include "sys-queue.h"
+
+typedef struct DeviceType DeviceType;
+
+typedef struct DeviceProperty DeviceProperty;
+
+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 {
+    DeviceType *type;
+    BusState *parent_bus;
+    DeviceProperty *props;
+    int num_gpio_out;
+    qemu_irq *gpio_out;
+    int num_gpio_in;
+    qemu_irq *gpio_in;
+    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(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_gpio_in(DeviceState *dev, int n);
+void qdev_connect_gpio_out(DeviceState *dev, int n, qemu_irq pin);
+
+BusState *qdev_get_child_bus(DeviceState *dev, const char *name);
+
+/*** Device API.  ***/
+
+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);
+
+struct DeviceInfo {
+    qdev_initfn init;
+    BusType bus_type;
+    DevicePropList *props;
+};
+
+void qdev_register(const char *name, int size, DeviceInfo *info);
+
+/* Register device properties.  */
+/* 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 scsi_bus_new(DeviceState *host, SCSIAttachFn attach);
+
+CharDriverState *qdev_init_chardev(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.  */
+#ifdef __GNUC__
+#define DO_UPCAST(type, field, dev) ( __extension__ ( { \
+    char __attribute__((unused)) offset_must_be_zero[ \
+        -offsetof(type, field)]; \
+    container_of(dev, type, field);}))
+#else
+#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)
+
+/*** monitor commands ***/
+
+void do_info_qtree(Monitor *mon);
+void sysbus_dev_print(Monitor *mon, DeviceState *dev, int indent);
+
+#endif