#include "hw.h"
#include "i2c.h"
#include "tmp105.h"
+#include "qapi/visitor.h"
static void tmp105_interrupt_update(TMP105State *s)
{
tmp105_interrupt_update(s);
}
+static void tmp105_get_temperature(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ TMP105State *s = TMP105(obj);
+ int64_t value = s->temperature;
+
+ visit_type_int(v, &value, name, errp);
+}
+
/* Units are 0.001 centigrades relative to 0 C. */
-void tmp105_set(I2CSlave *i2c, int temp)
+static void tmp105_set_temperature(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
{
- TMP105State *s = TMP105(i2c);
+ TMP105State *s = TMP105(obj);
+ int64_t temp;
+ visit_type_int(v, &temp, name, errp);
+ if (error_is_set(errp)) {
+ return;
+ }
if (temp >= 128000 || temp < -128000) {
- fprintf(stderr, "%s: values is out of range (%i.%03i C)\n",
- __FUNCTION__, temp / 1000, temp % 1000);
- exit(-1);
+ error_setg(errp, "value %" PRId64 ".%03" PRIu64 " °C is out of range",
+ temp / 1000, temp % 1000);
+ return;
}
s->temperature = ((int16_t) (temp * 0x800 / 128000)) << 4;
return 0;
}
+static void tmp105_initfn(Object *obj)
+{
+ object_property_add(obj, "temperature", "int",
+ tmp105_get_temperature,
+ tmp105_set_temperature, NULL, NULL, NULL);
+}
+
static void tmp105_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
.name = TYPE_TMP105,
.parent = TYPE_I2C_SLAVE,
.instance_size = sizeof(TMP105State),
+ .instance_init = tmp105_initfn,
.class_init = tmp105_class_init,
};
uint8_t alarm;
} TMP105State;
-/**
- * tmp105_set:
- * @i2c: dispatcher to TMP105 hardware model
- * @temp: temperature with 0.001 centigrades units in the range -40 C to +125 C
- *
- * Sets the temperature of the TMP105 hardware model.
- *
- * Bits 5 and 6 (value 32 and 64) in the register indexed by TMP105_REG_CONFIG
- * determine the precision of the temperature. See Table 8 in the data sheet.
- *
- * @see_also: I2C_SLAVE macro
- * @see_also: http://www.ti.com/lit/gpn/tmp105
- */
-void tmp105_set(I2CSlave *i2c, int temp);
-
#endif