diff options
Diffstat (limited to 'hw/core/qdev-properties.c')
-rw-r--r-- | hw/core/qdev-properties.c | 74 |
1 files changed, 68 insertions, 6 deletions
diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c index 3a324fb0c3..dc8ae6958c 100644 --- a/hw/core/qdev-properties.c +++ b/hw/core/qdev-properties.c @@ -74,13 +74,14 @@ static void bit_prop_set(DeviceState *dev, Property *props, bool val) } } -static int print_bit(DeviceState *dev, Property *prop, char *dest, size_t len) +static int prop_print_bit(DeviceState *dev, Property *prop, char *dest, + size_t len) { uint32_t *p = qdev_get_prop_ptr(dev, prop); return snprintf(dest, len, (*p & qdev_get_prop_mask(prop)) ? "on" : "off"); } -static void get_bit(Object *obj, Visitor *v, void *opaque, +static void prop_get_bit(Object *obj, Visitor *v, void *opaque, const char *name, Error **errp) { DeviceState *dev = DEVICE(obj); @@ -91,7 +92,7 @@ static void get_bit(Object *obj, Visitor *v, void *opaque, visit_type_bool(v, &value, name, errp); } -static void set_bit(Object *obj, Visitor *v, void *opaque, +static void prop_set_bit(Object *obj, Visitor *v, void *opaque, const char *name, Error **errp) { DeviceState *dev = DEVICE(obj); @@ -115,9 +116,9 @@ static void set_bit(Object *obj, Visitor *v, void *opaque, PropertyInfo qdev_prop_bit = { .name = "boolean", .legacy_name = "on/off", - .print = print_bit, - .get = get_bit, - .set = set_bit, + .print = prop_print_bit, + .get = prop_get_bit, + .set = prop_set_bit, }; /* --- bool --- */ @@ -1134,3 +1135,64 @@ void qdev_prop_set_globals(DeviceState *dev, Error **errp) class = object_class_get_parent(class); } while (class); } + +/* --- 64bit unsigned int 'size' type --- */ + +static void get_size(Object *obj, Visitor *v, void *opaque, + const char *name, Error **errp) +{ + DeviceState *dev = DEVICE(obj); + Property *prop = opaque; + uint64_t *ptr = qdev_get_prop_ptr(dev, prop); + + visit_type_size(v, ptr, name, errp); +} + +static void set_size(Object *obj, Visitor *v, void *opaque, + const char *name, Error **errp) +{ + DeviceState *dev = DEVICE(obj); + Property *prop = opaque; + uint64_t *ptr = qdev_get_prop_ptr(dev, prop); + + visit_type_size(v, ptr, name, errp); +} + +static int parse_size(DeviceState *dev, Property *prop, const char *str) +{ + uint64_t *ptr = qdev_get_prop_ptr(dev, prop); + Error *errp = NULL; + + if (str != NULL) { + parse_option_size(prop->name, str, ptr, &errp); + } + assert_no_error(errp); + return 0; +} + +static int print_size(DeviceState *dev, Property *prop, char *dest, size_t len) +{ + static const char suffixes[] = { 'B', 'K', 'M', 'G', 'T' }; + uint64_t div, val = *(uint64_t *)qdev_get_prop_ptr(dev, prop); + int i; + + /* Compute floor(log2(val)). */ + i = 64 - clz64(val); + + /* Find the power of 1024 that we'll display as the units. */ + i /= 10; + if (i >= ARRAY_SIZE(suffixes)) { + i = ARRAY_SIZE(suffixes) - 1; + } + div = 1ULL << (i * 10); + + return snprintf(dest, len, "%0.03f%c", (double)val/div, suffixes[i]); +} + +PropertyInfo qdev_prop_size = { + .name = "size", + .parse = parse_size, + .print = print_size, + .get = get_size, + .set = set_size, +}; |