qdev/prop: add CharDriverState property.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id: 

2 files changed, 26 insertions, 0 deletions

diff --git a/hw/qdev-properties.c b/hw/qdev-properties.c
index 5a3d10d..df3d209 100644
--- a/hw/qdev-properties.c
+++ b/hw/qdev-properties.c
@@ -168,6 +168,21 @@ PropertyInfo qdev_prop_drive = {
     .print = print_drive,
 };
 
+/* --- character device --- */
+
+static int print_chr(DeviceState *dev, Property *prop, char *dest, size_t len)
+{
+    CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
+    return snprintf(dest, len, "%s", (*ptr)->label);
+}
+
+PropertyInfo qdev_prop_chr = {
+    .name  = "chr",
+    .type  = PROP_TYPE_CHR,
+    .size  = sizeof(CharDriverState*),
+    .print = print_chr,
+};
+
 /* --- pointer --- */
 
 static int print_ptr(DeviceState *dev, Property *prop, char *dest, size_t len)
@@ -357,6 +372,11 @@ void qdev_prop_set_drive(DeviceState *dev, const char *name, DriveInfo *value)
     qdev_prop_set(dev, name, &value, PROP_TYPE_DRIVE);
 }
 
+void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value)
+{
+    qdev_prop_set(dev, name, &value, PROP_TYPE_CHR);
+}
+
 void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value)
 {
     qdev_prop_set(dev, name, &value, PROP_TYPE_PTR);
diff --git a/hw/qdev.h b/hw/qdev.h
index e8b4786..0400f32 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -4,6 +4,7 @@
 #include "hw.h"
 #include "sysemu.h"
 #include "sys-queue.h"
+#include "qemu-char.h"
 #include "qemu-option.h"
 
 typedef struct Property Property;
@@ -65,6 +66,7 @@ enum PropertyType {
     PROP_TYPE_TADDR,
     PROP_TYPE_MACADDR,
     PROP_TYPE_DRIVE,
+    PROP_TYPE_CHR,
     PROP_TYPE_PTR,
 };
 
@@ -155,6 +157,7 @@ extern PropertyInfo qdev_prop_uint32;
 extern PropertyInfo qdev_prop_uint64;
 extern PropertyInfo qdev_prop_hex32;
 extern PropertyInfo qdev_prop_hex64;
+extern PropertyInfo qdev_prop_chr;
 extern PropertyInfo qdev_prop_ptr;
 extern PropertyInfo qdev_prop_macaddr;
 extern PropertyInfo qdev_prop_drive;
@@ -192,6 +195,8 @@ extern PropertyInfo qdev_prop_pci_devfn;
 
 #define DEFINE_PROP_PTR(_n, _s, _f)             \
     DEFINE_PROP(_n, _s, _f, qdev_prop_ptr, void*)
+#define DEFINE_PROP_CHR(_n, _s, _f)             \
+    DEFINE_PROP(_n, _s, _f, qdev_prop_chr, CharDriverState*)
 #define DEFINE_PROP_MACADDR(_n, _s, _f)         \
     DEFINE_PROP(_n, _s, _f, qdev_prop_macaddr, uint8_t[6])
 
@@ -205,6 +210,7 @@ void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyT
 void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value);
 void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value);
 void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value);
+void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value);
 void qdev_prop_set_drive(DeviceState *dev, const char *name, DriveInfo *value);
 /* FIXME: Remove opaque pointer properties.  */
 void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value);