* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "hw.h"
#include "i2c.h"
-struct tmp105_s {
+typedef struct {
i2c_slave i2c;
- int len;
+ uint8_t len;
uint8_t buf[2];
qemu_irq pin;
int16_t temperature;
int16_t limit[2];
int faults;
- int alarm;
-};
+ uint8_t alarm;
+} TMP105State;
-static void tmp105_interrupt_update(struct tmp105_s *s)
+static void tmp105_interrupt_update(TMP105State *s)
{
qemu_set_irq(s->pin, s->alarm ^ ((~s->config >> 2) & 1)); /* POL */
}
-static void tmp105_alarm_update(struct tmp105_s *s)
+static void tmp105_alarm_update(TMP105State *s)
{
if ((s->config >> 0) & 1) { /* SD */
if ((s->config >> 7) & 1) /* OS */
/* Units are 0.001 centigrades relative to 0 C. */
void tmp105_set(i2c_slave *i2c, int temp)
{
- struct tmp105_s *s = (struct tmp105_s *) i2c;
+ TMP105State *s = (TMP105State *) i2c;
if (temp >= 128000 || temp < -128000) {
fprintf(stderr, "%s: values is out of range (%i.%03i C)\n",
static const int tmp105_faultq[4] = { 1, 2, 4, 6 };
-static void tmp105_read(struct tmp105_s *s)
+static void tmp105_read(TMP105State *s)
{
s->len = 0;
}
}
-static void tmp105_write(struct tmp105_s *s)
+static void tmp105_write(TMP105State *s)
{
switch (s->pointer & 3) {
case 0: /* Temperature */
static int tmp105_rx(i2c_slave *i2c)
{
- struct tmp105_s *s = (struct tmp105_s *) i2c;
+ TMP105State *s = (TMP105State *) i2c;
if (s->len < 2)
return s->buf[s->len ++];
static int tmp105_tx(i2c_slave *i2c, uint8_t data)
{
- struct tmp105_s *s = (struct tmp105_s *) i2c;
+ TMP105State *s = (TMP105State *) i2c;
if (!s->len ++)
s->pointer = data;
static void tmp105_event(i2c_slave *i2c, enum i2c_event event)
{
- struct tmp105_s *s = (struct tmp105_s *) i2c;
+ TMP105State *s = (TMP105State *) i2c;
if (event == I2C_START_RECV)
tmp105_read(s);
s->len = 0;
}
-static void tmp105_save(QEMUFile *f, void *opaque)
+static int tmp105_post_load(void *opaque, int version_id)
{
- struct tmp105_s *s = (struct tmp105_s *) opaque;
-
- qemu_put_byte(f, s->len);
- qemu_put_8s(f, &s->buf[0]);
- qemu_put_8s(f, &s->buf[1]);
-
- qemu_put_8s(f, &s->pointer);
- qemu_put_8s(f, &s->config);
- qemu_put_be16s(f, (uint16_t *) &s->temperature);
- qemu_put_be16s(f, (uint16_t *) &s->limit[0]);
- qemu_put_be16s(f, (uint16_t *) &s->limit[1]);
- qemu_put_byte(f, s->alarm);
- s->faults = tmp105_faultq[(s->config >> 3) & 3]; /* F */
+ TMP105State *s = opaque;
- i2c_slave_save(f, &s->i2c);
-}
-
-static int tmp105_load(QEMUFile *f, void *opaque, int version_id)
-{
- struct tmp105_s *s = (struct tmp105_s *) opaque;
-
- s->len = qemu_get_byte(f);
- qemu_get_8s(f, &s->buf[0]);
- qemu_get_8s(f, &s->buf[1]);
-
- qemu_get_8s(f, &s->pointer);
- qemu_get_8s(f, &s->config);
- qemu_get_be16s(f, (uint16_t *) &s->temperature);
- qemu_get_be16s(f, (uint16_t *) &s->limit[0]);
- qemu_get_be16s(f, (uint16_t *) &s->limit[1]);
- s->alarm = qemu_get_byte(f);
+ s->faults = tmp105_faultq[(s->config >> 3) & 3]; /* F */
tmp105_interrupt_update(s);
-
- i2c_slave_load(f, &s->i2c);
return 0;
}
-void tmp105_reset(i2c_slave *i2c)
+static const VMStateDescription vmstate_tmp105 = {
+ .name = "TMP105",
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .minimum_version_id_old = 0,
+ .post_load = tmp105_post_load,
+ .fields = (VMStateField []) {
+ VMSTATE_UINT8(len, TMP105State),
+ VMSTATE_UINT8_ARRAY(buf, TMP105State, 2),
+ VMSTATE_UINT8(pointer, TMP105State),
+ VMSTATE_UINT8(config, TMP105State),
+ VMSTATE_INT16(temperature, TMP105State),
+ VMSTATE_INT16_ARRAY(limit, TMP105State, 2),
+ VMSTATE_UINT8(alarm, TMP105State),
+ VMSTATE_I2C_SLAVE(i2c, TMP105State),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static void tmp105_reset(i2c_slave *i2c)
{
- struct tmp105_s *s = (struct tmp105_s *) i2c;
+ TMP105State *s = (TMP105State *) i2c;
s->temperature = 0;
s->pointer = 0;
tmp105_interrupt_update(s);
}
-struct i2c_slave *tmp105_init(i2c_bus *bus, qemu_irq alarm)
+static int tmp105_init(i2c_slave *i2c)
{
- struct tmp105_s *s = (struct tmp105_s *)
- i2c_slave_init(bus, 0, sizeof(struct tmp105_s));
+ TMP105State *s = FROM_I2C_SLAVE(TMP105State, i2c);
- s->i2c.event = tmp105_event;
- s->i2c.recv = tmp105_rx;
- s->i2c.send = tmp105_tx;
- s->pin = alarm;
+ qdev_init_gpio_out(&i2c->qdev, &s->pin, 1);
tmp105_reset(&s->i2c);
- register_savevm("TMP105", -1, 0, tmp105_save, tmp105_load, s);
+ return 0;
+}
- return &s->i2c;
+static I2CSlaveInfo tmp105_info = {
+ .qdev.name = "tmp105",
+ .qdev.size = sizeof(TMP105State),
+ .qdev.vmsd = &vmstate_tmp105,
+ .init = tmp105_init,
+ .event = tmp105_event,
+ .recv = tmp105_rx,
+ .send = tmp105_tx
+};
+
+static void tmp105_register_devices(void)
+{
+ i2c_register_slave(&tmp105_info);
}
+
+device_init(tmp105_register_devices)
projects / qemu.git / blobdiff