[Qemu-devel] [PATCH 2/6] qdev/prop: add 16bit integer type.

[Gerd Hoffmann <kraxel@redhat.com>]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/qdev-properties.c |   32 ++++++++++++++++++++++++++++++++
 hw/qdev.h            |    2 ++
 2 files changed, 34 insertions(+), 0 deletions(-)

diff --git a/hw/qdev-properties.c b/hw/qdev-properties.c
index cf1ad22..abd4b57 100644
--- a/hw/qdev-properties.c
+++ b/hw/qdev-properties.c
@@ -7,6 +7,33 @@ static void *prop_ptr(DeviceState *dev, Property *prop)
     return ptr;
 }
 
+/* --- 16bit integer --- */
+
+static int parse_uint16(DeviceState *dev, Property *prop, const char *str)
+{
+    uint16_t *ptr = prop_ptr(dev, prop);
+    const char *fmt;
+
+    /* accept both hex and decimal */
+    fmt = strncasecmp(str, "0x",2) == 0 ? "%" PRIx16 : "%" PRIu16;
+    if (sscanf(str, fmt, ptr) != 1)
+        return -1;
+    return 0;
+}
+
+static int print_uint16(DeviceState *dev, Property *prop, char *dest, size_t len)
+{
+    uint16_t *ptr = prop_ptr(dev, prop);
+    return snprintf(dest, len, "%" PRIu16, *ptr);
+}
+
+PropertyInfo qdev_prop_uint16 = {
+    .name  = "uint16",
+    .size  = sizeof(uint16_t),
+    .parse = parse_uint16,
+    .print = print_uint16,
+};
+
 /* --- 32bit integer --- */
 
 static int parse_uint32(DeviceState *dev, Property *prop, const char *str)
@@ -183,6 +210,11 @@ int qdev_prop_set(DeviceState *dev, const char *name, void *src, size_t size)
     return 0;
 }
 
+int qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value)
+{
+    return qdev_prop_set(dev, name, &value, sizeof(value));
+}
+
 int qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value)
 {
     return qdev_prop_set(dev, name, &value, sizeof(value));
diff --git a/hw/qdev.h b/hw/qdev.h
index c61ef4a..d7f51fb 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -128,6 +128,7 @@ void do_info_qtree(Monitor *mon);
 
 /*** qdev-properties.c ***/
 
+extern PropertyInfo qdev_prop_uint16;
 extern PropertyInfo qdev_prop_uint32;
 extern PropertyInfo qdev_prop_hex32;
 extern PropertyInfo qdev_prop_ptr;
@@ -136,6 +137,7 @@ extern PropertyInfo qdev_prop_mac;
 /* Set properties between creation and init.  */
 int qdev_prop_parse(DeviceState *dev, const char *name, const char *value);
 int qdev_prop_set(DeviceState *dev, const char *name, void *src, size_t size);
+int qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value);
 int qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value);
 /* FIXME: Remove opaque pointer properties.  */
 int qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value);
-- 
1.6.2.5