[RFC PATCH 12/17] hw/misc/bcm2835_property: Hold the temperature in the device state

[Philippe Mathieu-Daudé]

We are going to modify this variable, move it to the device state.

Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
 include/hw/misc/bcm2835_property.h | 1 +
 hw/misc/bcm2835_property.c         | 8 +++++---
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/include/hw/misc/bcm2835_property.h 
b/include/hw/misc/bcm2835_property.h
index b321f22499..010ad39ed0 100644
--- a/include/hw/misc/bcm2835_property.h
+++ b/include/hw/misc/bcm2835_property.h
@@ -31,6 +31,7 @@ typedef struct {
     uint32_t board_rev;
     uint32_t addr;
     bool pending;
+    float64 temp_mC;
 } BCM2835PropertyState;
 
 #endif
diff --git a/hw/misc/bcm2835_property.c b/hw/misc/bcm2835_property.c
index 3e228ca0ae..bbe80affd4 100644
--- a/hw/misc/bcm2835_property.c
+++ b/hw/misc/bcm2835_property.c
@@ -143,7 +143,7 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState 
*s, uint32_t value)
         /* Temperature */
 
         case 0x00030006: /* Get temperature */
-            stl_le_phys(&s->dma_as, value + 16, 25000);
+            stl_le_phys(&s->dma_as, value + 16, s->temp_mC);
             resplen = 8;
             break;
 
@@ -361,12 +361,13 @@ static const MemoryRegionOps bcm2835_property_ops = {
 
 static const VMStateDescription vmstate_bcm2835_property = {
     .name = TYPE_BCM2835_PROPERTY,
-    .version_id = 1,
-    .minimum_version_id = 1,
+    .version_id = 2,
+    .minimum_version_id = 2,
     .fields      = (VMStateField[]) {
         VMSTATE_MACADDR(macaddr, BCM2835PropertyState),
         VMSTATE_UINT32(addr, BCM2835PropertyState),
         VMSTATE_BOOL(pending, BCM2835PropertyState),
+        VMSTATE_FLOAT64(temp_mC, BCM2835PropertyState),
         VMSTATE_END_OF_LIST()
     }
 };
@@ -375,6 +376,7 @@ static void bcm2835_property_init(Object *obj)
 {
     BCM2835PropertyState *s = BCM2835_PROPERTY(obj);
 
+    s->temp_mC = 25e3;
     memory_region_init_io(&s->iomem, OBJECT(s), &bcm2835_property_ops, s,
                           TYPE_BCM2835_PROPERTY, 0x10);
     sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem);
-- 
2.21.1