1 files changed, 23 insertions, 17 deletions

diff --git a/hw/i2c.h b/hw/i2c.h
index d45cdad4e9..31fd59c82c 100644
--- a/hw/i2c.h
+++ b/hw/i2c.h
@@ -17,29 +17,34 @@ enum i2c_event {
 
 typedef struct I2CSlave I2CSlave;
 
-/* Master to slave.  */
-typedef int (*i2c_send_cb)(I2CSlave *s, uint8_t data);
-/* Slave to master.  */
-typedef int (*i2c_recv_cb)(I2CSlave *s);
-/* Notify the slave of a bus state change.  */
-typedef void (*i2c_event_cb)(I2CSlave *s, enum i2c_event event);
+#define TYPE_I2C_SLAVE "i2c-slave"
+#define I2C_SLAVE(obj) \
+     OBJECT_CHECK(I2CSlave, (obj), TYPE_I2C_SLAVE)
+#define I2C_SLAVE_CLASS(klass) \
+     OBJECT_CLASS_CHECK(I2CSlaveClass, (klass), TYPE_I2C_SLAVE)
+#define I2C_SLAVE_GET_CLASS(obj) \
+     OBJECT_GET_CLASS(I2CSlaveClass, (obj), TYPE_I2C_SLAVE)
+
+typedef struct I2CSlaveClass
+{
+    DeviceClass parent_class;
+
+    /* Callbacks provided by the device.  */
+    int (*init)(I2CSlave *dev);
 
-typedef int (*i2c_slave_initfn)(I2CSlave *dev);
+    /* Master to slave.  */
+    int (*send)(I2CSlave *s, uint8_t data);
 
-typedef struct {
-    DeviceInfo qdev;
+    /* Slave to master.  */
+    int (*recv)(I2CSlave *s);
 
-    /* Callbacks provided by the device.  */
-    i2c_slave_initfn init;
-    i2c_event_cb event;
-    i2c_recv_cb recv;
-    i2c_send_cb send;
-} I2CSlaveInfo;
+    /* Notify the slave of a bus state change.  */
+    void (*event)(I2CSlave *s, enum i2c_event event);
+} I2CSlaveClass;
 
 struct I2CSlave
 {
     DeviceState qdev;
-    I2CSlaveInfo *info;
 
     /* Remaining fields for internal use by the I2C code.  */
     uint8_t address;
@@ -57,7 +62,8 @@ int i2c_recv(i2c_bus *bus);
 #define I2C_SLAVE_FROM_QDEV(dev) DO_UPCAST(I2CSlave, qdev, dev)
 #define FROM_I2C_SLAVE(type, dev) DO_UPCAST(type, i2c, dev)
 
-void i2c_register_slave(I2CSlaveInfo *type);
+void i2c_register_slave(DeviceInfo *type);
+void i2c_register_slave_subclass(DeviceInfo *info, const char *parent);
 
 DeviceState *i2c_create_slave(i2c_bus *bus, const char *name, uint8_t addr);