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-rw-r--r--hw/i2c/smbus_eeprom.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/hw/i2c/smbus_eeprom.c b/hw/i2c/smbus_eeprom.c
index 2816e35bcc..76f0d4aab0 100644
--- a/hw/i2c/smbus_eeprom.c
+++ b/hw/i2c/smbus_eeprom.c
@@ -32,6 +32,11 @@
//#define DEBUG
+#define TYPE_SMBUS_EEPROM "smbus-eeprom"
+
+#define SMBUS_EEPROM(obj) \
+ OBJECT_CHECK(SMBusEEPROMDevice, (obj), TYPE_SMBUS_EEPROM)
+
typedef struct SMBusEEPROMDevice {
SMBusDevice smbusdev;
void *data;
@@ -40,7 +45,7 @@ typedef struct SMBusEEPROMDevice {
static uint8_t eeprom_receive_byte(SMBusDevice *dev)
{
- SMBusEEPROMDevice *eeprom = (SMBusEEPROMDevice *) dev;
+ SMBusEEPROMDevice *eeprom = SMBUS_EEPROM(dev);
uint8_t *data = eeprom->data;
uint8_t val = data[eeprom->offset++];
@@ -53,7 +58,7 @@ static uint8_t eeprom_receive_byte(SMBusDevice *dev)
static int eeprom_write_data(SMBusDevice *dev, uint8_t *buf, uint8_t len)
{
- SMBusEEPROMDevice *eeprom = (SMBusEEPROMDevice *) dev;
+ SMBusEEPROMDevice *eeprom = SMBUS_EEPROM(dev);
uint8_t *data = eeprom->data;
#ifdef DEBUG
@@ -75,7 +80,7 @@ static int eeprom_write_data(SMBusDevice *dev, uint8_t *buf, uint8_t len)
static void smbus_eeprom_realize(DeviceState *dev, Error **errp)
{
- SMBusEEPROMDevice *eeprom = (SMBusEEPROMDevice *)dev;
+ SMBusEEPROMDevice *eeprom = SMBUS_EEPROM(dev);
eeprom->offset = 0;
}
@@ -99,7 +104,7 @@ static void smbus_eeprom_class_initfn(ObjectClass *klass, void *data)
}
static const TypeInfo smbus_eeprom_info = {
- .name = "smbus-eeprom",
+ .name = TYPE_SMBUS_EEPROM,
.parent = TYPE_SMBUS_DEVICE,
.instance_size = sizeof(SMBusEEPROMDevice),
.class_init = smbus_eeprom_class_initfn,
@@ -116,7 +121,7 @@ void smbus_eeprom_init_one(I2CBus *smbus, uint8_t address, uint8_t *eeprom_buf)
{
DeviceState *dev;
- dev = qdev_create((BusState *) smbus, "smbus-eeprom");
+ dev = qdev_create((BusState *) smbus, TYPE_SMBUS_EEPROM);
qdev_prop_set_uint8(dev, "address", address);
qdev_prop_set_ptr(dev, "data", eeprom_buf);
qdev_init_nofail(dev);