qdev: Add HEX8 property

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/hw/qdev-properties.c b/hw/qdev-properties.c
index e0e54aa857..f0b811c806 100644
--- a/hw/qdev-properties.c
+++ b/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)