commit 062db74023043c8fe50869f19c3b9c6bb3e4699c
author Peter Crosthwaite <peter.crosthwaite@xilinx.com> Thu Jun 06 15:34:08 2013 +1000
committer Anthony Liguori <aliguori@us.ibm.com> Fri Jun 14 08:59:28 2013 -0500
tree 8aac32214547b27aaf01fa005b254342ad95f52f
parent 6e5c4540d18d1e9a5253104df161a7e0d408ca95

audio/intel-hda: Fix Inheritance hierachy

The ich6 and ich9 variants either need to inherit one from the other,
or both from a common base class, otherwise its not possible to create
a QOM cast macro for use by the shared implementation functions.
Went for option B, with a common base class.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 54453b6aa8afa1a76b2ec1932f1d7fd25205d0bc.1370496582.git.peter.crosthwaite@xilinx.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

hw/audio/intel-hda.c

diff --git a/hw/audio/intel-hda.c b/hw/audio/intel-hda.c
index 1016af0..eac0cf3 100644
--- a/hw/audio/intel-hda.c
+++ b/hw/audio/intel-hda.c
@@ -189,6 +189,8 @@
     uint32_t msi;
 };
 
+#define TYPE_INTEL_HDA_GENERIC "intel-hda-generic"
+
 struct IntelHDAReg {
     const char *name;      /* register name */
     uint32_t   size;       /* size in bytes */
@@ -1232,7 +1234,7 @@
     DEFINE_PROP_END_OF_LIST(),
 };
 
-static void intel_hda_class_init_common(ObjectClass *klass)
+static void intel_hda_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
@@ -1251,7 +1253,6 @@
     DeviceClass *dc = DEVICE_CLASS(klass);
     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 
-    intel_hda_class_init_common(klass);
     k->device_id = 0x2668;
     k->revision = 1;
     dc->desc = "Intel HD Audio Controller (ich6)";
@@ -1262,23 +1263,28 @@
     DeviceClass *dc = DEVICE_CLASS(klass);
     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 
-    intel_hda_class_init_common(klass);
     k->device_id = 0x293e;
     k->revision = 3;
     dc->desc = "Intel HD Audio Controller (ich9)";
 }
 
-static const TypeInfo intel_hda_info_ich6 = {
-    .name          = "intel-hda",
+static const TypeInfo intel_hda_info = {
+    .name          = TYPE_INTEL_HDA_GENERIC,
     .parent        = TYPE_PCI_DEVICE,
     .instance_size = sizeof(IntelHDAState),
+    .class_init    = intel_hda_class_init,
+    .abstract      = true,
+};
+
+static const TypeInfo intel_hda_info_ich6 = {
+    .name          = "intel-hda",
+    .parent        = TYPE_INTEL_HDA_GENERIC,
     .class_init    = intel_hda_class_init_ich6,
 };
 
 static const TypeInfo intel_hda_info_ich9 = {
     .name          = "ich9-intel-hda",
-    .parent        = TYPE_PCI_DEVICE,
-    .instance_size = sizeof(IntelHDAState),
+    .parent        = TYPE_INTEL_HDA_GENERIC,
     .class_init    = intel_hda_class_init_ich9,
 };
 
@@ -1320,6 +1326,7 @@
 static void intel_hda_register_types(void)
 {
     type_register_static(&hda_codec_bus_info);
+    type_register_static(&intel_hda_info);
     type_register_static(&intel_hda_info_ich6);
     type_register_static(&intel_hda_info_ich9);
     type_register_static(&hda_codec_device_type_info);