diff options
Diffstat (limited to 'hw/timer/ds1338.c')
| -rw-r--r-- | hw/timer/ds1338.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/hw/timer/ds1338.c b/hw/timer/ds1338.c index 8987cdc9e0..bb2f8ee8b3 100644 --- a/hw/timer/ds1338.c +++ b/hw/timer/ds1338.c @@ -23,8 +23,12 @@ #define HOURS_PM 0x20 #define CTRL_OSF 0x20 -typedef struct { - I2CSlave i2c; +#define TYPE_DS1338 "ds1338" +#define DS1338(obj) OBJECT_CHECK(DS1338State, (obj), TYPE_DS1338) + +typedef struct DS1338State { + I2CSlave parent_obj; + int64_t offset; uint8_t wday_offset; uint8_t nvram[NVRAM_SIZE]; @@ -38,7 +42,7 @@ static const VMStateDescription vmstate_ds1338 = { .minimum_version_id = 1, .minimum_version_id_old = 1, .fields = (VMStateField[]) { - VMSTATE_I2C_SLAVE(i2c, DS1338State), + VMSTATE_I2C_SLAVE(parent_obj, DS1338State), VMSTATE_INT64(offset, DS1338State), VMSTATE_UINT8_V(wday_offset, DS1338State, 2), VMSTATE_UINT8_ARRAY(nvram, DS1338State, NVRAM_SIZE), @@ -90,7 +94,7 @@ static void inc_regptr(DS1338State *s) static void ds1338_event(I2CSlave *i2c, enum i2c_event event) { - DS1338State *s = FROM_I2C_SLAVE(DS1338State, i2c); + DS1338State *s = DS1338(i2c); switch (event) { case I2C_START_RECV: @@ -111,7 +115,7 @@ static void ds1338_event(I2CSlave *i2c, enum i2c_event event) static int ds1338_recv(I2CSlave *i2c) { - DS1338State *s = FROM_I2C_SLAVE(DS1338State, i2c); + DS1338State *s = DS1338(i2c); uint8_t res; res = s->nvram[s->ptr]; @@ -121,7 +125,8 @@ static int ds1338_recv(I2CSlave *i2c) static int ds1338_send(I2CSlave *i2c, uint8_t data) { - DS1338State *s = FROM_I2C_SLAVE(DS1338State, i2c); + DS1338State *s = DS1338(i2c); + if (s->addr_byte) { s->ptr = data & (NVRAM_SIZE - 1); s->addr_byte = false; @@ -198,7 +203,7 @@ static int ds1338_init(I2CSlave *i2c) static void ds1338_reset(DeviceState *dev) { - DS1338State *s = FROM_I2C_SLAVE(DS1338State, I2C_SLAVE(dev)); + DS1338State *s = DS1338(dev); /* The clock is running and synchronized with the host */ s->offset = 0; @@ -222,7 +227,7 @@ static void ds1338_class_init(ObjectClass *klass, void *data) } static const TypeInfo ds1338_info = { - .name = "ds1338", + .name = TYPE_DS1338, .parent = TYPE_I2C_SLAVE, .instance_size = sizeof(DS1338State), .class_init = ds1338_class_init, |