qdev: Add support for uint8_t

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

2 files changed, 38 insertions, 0 deletions

diff --git a/hw/qdev-properties.c b/hw/qdev-properties.c
index 2ecb58df2a..c4fb15c020 100644
--- a/hw/qdev-properties.c
+++ b/hw/qdev-properties.c
@@ -8,6 +8,34 @@ void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
     return ptr;
 }
 
+/* --- 8bit integer --- */
+
+static int parse_uint8(DeviceState *dev, Property *prop, const char *str)
+{
+    uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
+    const char *fmt;
+
+    /* accept both hex and decimal */
+    fmt = strncasecmp(str, "0x",2) == 0 ? "%" PRIx8 : "%" PRIu8;
+    if (sscanf(str, fmt, ptr) != 1)
+        return -1;
+    return 0;
+}
+
+static int print_uint8(DeviceState *dev, Property *prop, char *dest, size_t len)
+{
+    uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
+    return snprintf(dest, len, "%" PRIu8, *ptr);
+}
+
+PropertyInfo qdev_prop_uint8 = {
+    .name  = "uint8",
+    .type  = PROP_TYPE_UINT8,
+    .size  = sizeof(uint8_t),
+    .parse = parse_uint8,
+    .print = print_uint8,
+};
+
 /* --- 16bit integer --- */
 
 static int parse_uint16(DeviceState *dev, Property *prop, const char *str)
@@ -391,6 +419,11 @@ void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyT
     memcpy(dst, src, prop->info->size);
 }
 
+void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value)
+{
+    qdev_prop_set(dev, name, &value, PROP_TYPE_UINT8);
+}
+
 void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value)
 {
     qdev_prop_set(dev, name, &value, PROP_TYPE_UINT16);
diff --git a/hw/qdev.h b/hw/qdev.h
index dfdad90fbd..0a4d07a29c 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -60,6 +60,7 @@ struct Property {
 
 enum PropertyType {
     PROP_TYPE_UNSPEC = 0,
+    PROP_TYPE_UINT8,
     PROP_TYPE_UINT16,
     PROP_TYPE_UINT32,
     PROP_TYPE_INT32,
@@ -155,6 +156,7 @@ void do_info_qdm(Monitor *mon);
 
 /*** qdev-properties.c ***/
 
+extern PropertyInfo qdev_prop_uint8;
 extern PropertyInfo qdev_prop_uint16;
 extern PropertyInfo qdev_prop_uint32;
 extern PropertyInfo qdev_prop_int32;
@@ -181,6 +183,8 @@ extern PropertyInfo qdev_prop_pci_devfn;
         .defval    = (_type[]) { _defval },                             \
         }
 
+#define DEFINE_PROP_UINT8(_n, _s, _f, _d)                       \
+    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint8, uint8_t)
 #define DEFINE_PROP_UINT16(_n, _s, _f, _d)                      \
     DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint16, uint16_t)
 #define DEFINE_PROP_UINT32(_n, _s, _f, _d)                      \
@@ -212,6 +216,7 @@ extern PropertyInfo qdev_prop_pci_devfn;
 void *qdev_get_prop_ptr(DeviceState *dev, Property *prop);
 int qdev_prop_parse(DeviceState *dev, const char *name, const char *value);
 void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type);
+void qdev_prop_set_uint8(DeviceState *dev, const char *name, uint8_t value);
 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_int32(DeviceState *dev, const char *name, int32_t value);