#ifndef QEMU_I2C_H
#define QEMU_I2C_H
-#include "qdev.h"
+#include "hw/qdev.h"
/* The QEMU I2C implementation only supports simple transfers that complete
immediately. It does not support slave devices that need to be able to
I2C_NACK /* Masker NACKed a receive byte. */
};
-/* Master to slave. */
-typedef int (*i2c_send_cb)(i2c_slave *s, uint8_t data);
-/* Slave to master. */
-typedef int (*i2c_recv_cb)(i2c_slave *s);
-/* Notify the slave of a bus state change. */
-typedef void (*i2c_event_cb)(i2c_slave *s, enum i2c_event event);
+typedef struct I2CSlave I2CSlave;
-typedef int (*i2c_slave_initfn)(i2c_slave *dev);
+#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 {
- DeviceInfo qdev;
+typedef struct I2CSlaveClass
+{
+ DeviceClass parent_class;
/* Callbacks provided by the device. */
- i2c_slave_initfn init;
- i2c_event_cb event;
- i2c_recv_cb recv;
- i2c_send_cb send;
-} I2CSlaveInfo;
+ int (*init)(I2CSlave *dev);
+
+ /* Master to slave. */
+ int (*send)(I2CSlave *s, uint8_t data);
+
+ /* Slave to master. */
+ int (*recv)(I2CSlave *s);
-struct i2c_slave
+ /* 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;
};
i2c_bus *i2c_init_bus(DeviceState *parent, const char *name);
-void i2c_set_slave_address(i2c_slave *dev, uint8_t address);
+void i2c_set_slave_address(I2CSlave *dev, uint8_t address);
int i2c_bus_busy(i2c_bus *bus);
int i2c_start_transfer(i2c_bus *bus, uint8_t address, int recv);
void i2c_end_transfer(i2c_bus *bus);
int i2c_send(i2c_bus *bus, uint8_t data);
int i2c_recv(i2c_bus *bus);
-#define I2C_SLAVE_FROM_QDEV(dev) DO_UPCAST(i2c_slave, qdev, dev)
#define FROM_I2C_SLAVE(type, dev) DO_UPCAST(type, i2c, dev)
-void i2c_register_slave(I2CSlaveInfo *type);
-
DeviceState *i2c_create_slave(i2c_bus *bus, const char *name, uint8_t addr);
/* wm8750.c */
void wm8750_dac_commit(void *opaque);
void wm8750_set_bclk_in(void *opaque, int new_hz);
-/* tmp105.c */
-void tmp105_set(i2c_slave *i2c, int temp);
-
/* lm832x.c */
void lm832x_key_event(DeviceState *dev, int key, int state);
#define VMSTATE_I2C_SLAVE(_field, _state) { \
.name = (stringify(_field)), \
- .size = sizeof(i2c_slave), \
+ .size = sizeof(I2CSlave), \
.vmsd = &vmstate_i2c_slave, \
.flags = VMS_STRUCT, \
- .offset = vmstate_offset_value(_state, _field, i2c_slave), \
+ .offset = vmstate_offset_value(_state, _field, I2CSlave), \
}
#endif