qdev: Add HEX8 property

Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: NAndreas Färber <afaerber@suse.de>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

hw/qdev-properties.c

@@ -93,6 +93,35 @@ PropertyInfo qdev_prop_uint8 = {
     .print = print_uint8,
 };
 
+/* --- 8bit hex value --- */
+
+static int parse_hex8(DeviceState *dev, Property *prop, const char *str)
+{
+    uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
+    char *end;
+
+    *ptr = strtoul(str, &end, 16);
+    if ((*end != '\0') || (end == str)) {
+        return -EINVAL;
+    }
+
+    return 0;
+}
+
+static int print_hex8(DeviceState *dev, Property *prop, char *dest, size_t len)
+{
+    uint8_t *ptr = qdev_get_prop_ptr(dev, prop);
+    return snprintf(dest, len, "0x%" PRIx8, *ptr);
+}
+
+PropertyInfo qdev_prop_hex8 = {
+    .name  = "hex8",
+    .type  = PROP_TYPE_UINT8,
+    .size  = sizeof(uint8_t),
+    .parse = parse_hex8,
+    .print = print_hex8,
+};
+
 /* --- 16bit integer --- */
 
 static int parse_uint16(DeviceState *dev, Property *prop, const char *str)

hw/qdev.h

@@ -224,6 +224,7 @@ extern PropertyInfo qdev_prop_uint16;
 extern PropertyInfo qdev_prop_uint32;
 extern PropertyInfo qdev_prop_int32;
 extern PropertyInfo qdev_prop_uint64;
+extern PropertyInfo qdev_prop_hex8;
 extern PropertyInfo qdev_prop_hex32;
 extern PropertyInfo qdev_prop_hex64;
 extern PropertyInfo qdev_prop_string;
@@ -267,6 +268,8 @@ extern PropertyInfo qdev_prop_pci_devfn;
     DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_int32, int32_t)
 #define DEFINE_PROP_UINT64(_n, _s, _f, _d)                      \
     DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_uint64, uint64_t)
+#define DEFINE_PROP_HEX8(_n, _s, _f, _d)                       \
+    DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex8, uint8_t)
 #define DEFINE_PROP_HEX32(_n, _s, _f, _d)                       \
     DEFINE_PROP_DEFAULT(_n, _s, _f, _d, qdev_prop_hex32, uint32_t)
 #define DEFINE_PROP_HEX64(_n, _s, _f, _d)                       \