pc: export applesmc IO port/len

IO port and length will be used in following patch
to correctly generate SMC ACPI device in SSDT.
Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

hw/i386/acpi-build.c

@@ -145,7 +145,7 @@ static void acpi_get_dsdt(AcpiMiscInfo *info)
 
     /* Patch in appropriate value for AppleSMC _STA */
     *(uint8_t *)(info->dsdt_code + *applesmc_sta) =
-        applesmc_find() ? 0x0b : 0x00;
+        applesmc_port() ? 0x0b : 0x00;
 }
 
 static

hw/misc/applesmc.c

@@ -43,7 +43,6 @@
 /* command/status port used by Apple SMC */
 #define APPLESMC_CMD_PORT              0x4
 #define APPLESMC_NR_PORTS              32
-#define APPLESMC_MAX_DATA_LENGTH       32
 
 #define APPLESMC_READ_CMD              0x10
 #define APPLESMC_WRITE_CMD             0x11
@@ -249,7 +248,7 @@ static void applesmc_isa_realize(DeviceState *dev, Error **errp)
 }
 
 static Property applesmc_isa_properties[] = {
-    DEFINE_PROP_UINT32("iobase", AppleSMCState, iobase,
+    DEFINE_PROP_UINT32(APPLESMC_PROP_IO_BASE, AppleSMCState, iobase,
                        APPLESMC_DEFAULT_IOBASE),
     DEFINE_PROP_STRING("osk", AppleSMCState, osk),
     DEFINE_PROP_END_OF_LIST(),

include/hw/isa/isa.h

@@ -21,10 +21,17 @@
 #define ISA_BUS(obj) OBJECT_CHECK(ISABus, (obj), TYPE_ISA_BUS)
 
 #define TYPE_APPLE_SMC "isa-applesmc"
+#define APPLESMC_MAX_DATA_LENGTH       32
+#define APPLESMC_PROP_IO_BASE "iobase"
 
-static inline bool applesmc_find(void)
+static inline uint16_t applesmc_port(void)
 {
-    return object_resolve_path_type("", TYPE_APPLE_SMC, NULL);
+    Object *obj = object_resolve_path_type("", TYPE_APPLE_SMC, NULL);
+
+    if (obj) {
+        return object_property_get_int(obj, APPLESMC_PROP_IO_BASE, NULL);
+    }
+    return 0;
 }
 
 typedef struct ISADeviceClass {