[Qemu-devel] [PATCH 07/11] sdbus: add a SD_BUS_SLAVE interface

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

Devices implementing this interface can be (hot-)plugged to a SD bus.

The sdcard device is currently the unique implementation.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 hw/sd/sd-internal.h | 5 +++--
 hw/sd/core.c        | 7 +++++++
 hw/sd/sd.c          | 4 ++++
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/hw/sd/sd-internal.h b/hw/sd/sd-internal.h
index 85a747ea64..4576d2f8a8 100644
--- a/hw/sd/sd-internal.h
+++ b/hw/sd/sd-internal.h
@@ -66,10 +66,11 @@ typedef enum {
 
 typedef struct SDState SDState;
 
+#define TYPE_SD_BUS_SLAVE_INTERFACE     "sd-bus-slave"
 #define SDBUS_SLAVE_CLASS(klass) \
-    OBJECT_CLASS_CHECK(SDSlaveClass, (klass), TYPE_SD_CARD)
+    OBJECT_CLASS_CHECK(SDSlaveClass, (klass), TYPE_SD_BUS_SLAVE_INTERFACE)
 #define SDBUS_SLAVE_GET_CLASS(obj) \
-    OBJECT_GET_CLASS(SDSlaveClass, (obj), TYPE_SD_CARD)
+    OBJECT_GET_CLASS(SDSlaveClass, (obj), TYPE_SD_BUS_SLAVE_INTERFACE)
 
 typedef struct {
     /*< private >*/
diff --git a/hw/sd/core.c b/hw/sd/core.c
index cd5b531cfa..dc1571befc 100644
--- a/hw/sd/core.c
+++ b/hw/sd/core.c
@@ -181,9 +181,16 @@ static const TypeInfo sd_bus_info = {
     .class_size = sizeof(SDBusClass),
 };
 
+static const TypeInfo sd_slave_info = {
+    .name = TYPE_SD_BUS_SLAVE_INTERFACE,
+    .parent = TYPE_INTERFACE,
+    .class_size = sizeof(SDBusClass),
+};
+
 static void sd_bus_register_types(void)
 {
     type_register_static(&sd_bus_info);
+    type_register_static(&sd_slave_info);
 }
 
 type_init(sd_bus_register_types)
diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index 97046df5c3..8e12b07ee4 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -1942,6 +1942,10 @@ static const TypeInfo sd_info = {
     .class_init = sd_class_init,
     .instance_init = sd_instance_init,
     .instance_finalize = sd_instance_finalize,
+    .interfaces = (InterfaceInfo[]) {
+        { TYPE_SD_BUS_SLAVE_INTERFACE },
+        { },
+    },
 };
 
 static void sd_register_types(void)
-- 
2.15.1