DEFINE_PROP_ON_OFF_AUTO_BIT64() corresponds to DEFINE_PROP_ON_OFF_AUTO()
as DEFINE_PROP_BIT64() corresponds to DEFINE_PROP_BOOL(). The difference
is that DEFINE_PROP_ON_OFF_AUTO_BIT64() exposes OnOffAuto instead of
bool.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
include/hw/qdev-properties.h | 18 ++++++++++++
hw/core/qdev-properties.c | 66 +++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 83 insertions(+), 1 deletion(-)
diff --git a/include/hw/qdev-properties.h b/include/hw/qdev-properties.h
index 09aa04ca1e27..afec53a48470 100644
--- a/include/hw/qdev-properties.h
+++ b/include/hw/qdev-properties.h
@@ -43,11 +43,22 @@ struct PropertyInfo {
ObjectPropertyRelease *release;
};
+/**
+ * struct OnOffAutoBit64 - OnOffAuto storage with 64 elements.
+ * @on_bits: Bitmap of elements with "on".
+ * @auto_bits: Bitmap of elements with "auto".
+ */
+typedef struct OnOffAutoBit64 {
+ uint64_t on_bits;
+ uint64_t auto_bits;
+} OnOffAutoBit64;
+
/*** qdev-properties.c ***/
extern const PropertyInfo qdev_prop_bit;
extern const PropertyInfo qdev_prop_bit64;
+extern const PropertyInfo qdev_prop_on_off_auto_bit64;
extern const PropertyInfo qdev_prop_bool;
extern const PropertyInfo qdev_prop_enum;
extern const PropertyInfo qdev_prop_uint8;
@@ -100,6 +111,13 @@ extern const PropertyInfo qdev_prop_link;
.set_default = true, \
.defval.u = (bool)_defval)
+#define DEFINE_PROP_ON_OFF_AUTO_BIT64(_name, _state, _field, _bit, _defval) \
+ DEFINE_PROP(_name, _state, _field, qdev_prop_on_off_auto_bit64, \
+ OnOffAutoBit64, \
+ .bitnr = (_bit), \
+ .set_default = true, \
+ .defval.i = (OnOffAuto)_defval)
+
#define DEFINE_PROP_BOOL(_name, _state, _field, _defval) \
DEFINE_PROP(_name, _state, _field, qdev_prop_bool, bool, \
.set_default = true, \
diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index f0a270bb4f61..cc76ff0dfae6 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -187,7 +187,8 @@ const PropertyInfo qdev_prop_bit = {
static uint64_t qdev_get_prop_mask64(Property *prop)
{
- assert(prop->info == &qdev_prop_bit64);
+ assert(prop->info == &qdev_prop_bit64 ||
+ prop->info == &qdev_prop_on_off_auto_bit64);
return 0x1ull << prop->bitnr;
}
@@ -232,6 +233,69 @@ const PropertyInfo qdev_prop_bit64 = {
.set_default_value = set_default_value_bool,
};
+static void prop_get_on_off_auto_bit64(Object *obj, Visitor *v,
+ const char *name, void *opaque,
+ Error **errp)
+{
+ Property *prop = opaque;
+ OnOffAutoBit64 *p = object_field_prop_ptr(obj, prop);
+ int value;
+ uint64_t mask = qdev_get_prop_mask64(prop);
+
+ if (p->auto_bits & mask) {
+ value = ON_OFF_AUTO_AUTO;
+ } else if (p->on_bits & mask) {
+ value = ON_OFF_AUTO_ON;
+ } else {
+ value = ON_OFF_AUTO_OFF;
+ }
+
+ visit_type_enum(v, name, &value, &OnOffAuto_lookup, errp);
+}
+
+static void prop_set_on_off_auto_bit64(Object *obj, Visitor *v,
+ const char *name, void *opaque,
+ Error **errp)
+{
+ Property *prop = opaque;
+ OnOffAutoBit64 *p = object_field_prop_ptr(obj, prop);
+ bool bool_value;
+ int value;
+ uint64_t mask = qdev_get_prop_mask64(prop);
+
+ if (visit_type_bool(v, name, &bool_value, NULL)) {
+ value = bool_value ? ON_OFF_AUTO_ON : ON_OFF_AUTO_OFF;
+ } else if (!visit_type_enum(v, name, &value, &OnOffAuto_lookup, errp)) {
+ return;
+ }
+
+ switch (value) {
+ case ON_OFF_AUTO_AUTO:
+ p->on_bits &= ~mask;
+ p->auto_bits |= mask;
+ break;
+
+ case ON_OFF_AUTO_ON:
+ p->on_bits |= mask;
+ p->auto_bits &= ~mask;
+ break;
+
+ case ON_OFF_AUTO_OFF:
+ p->on_bits &= ~mask;
+ p->auto_bits &= ~mask;
+ break;
+ }
+}
+
+const PropertyInfo qdev_prop_on_off_auto_bit64 = {
+ .name = "OnOffAuto",
+ .description = "on/off/auto",
+ .enum_table = &OnOffAuto_lookup,
+ .get = prop_get_on_off_auto_bit64,
+ .set = prop_set_on_off_auto_bit64,
+ .set_default_value = qdev_propinfo_set_default_value_enum,
+};
+
/* --- bool --- */
static void get_bool(Object *obj, Visitor *v, const char *name, void *opaque,
--
2.45.2On Sun, Jul 14, 2024 at 02:11:02PM +0900, Akihiko Odaki wrote: > DEFINE_PROP_ON_OFF_AUTO_BIT64() corresponds to DEFINE_PROP_ON_OFF_AUTO() > as DEFINE_PROP_BIT64() corresponds to DEFINE_PROP_BOOL(). The difference > is that DEFINE_PROP_ON_OFF_AUTO_BIT64() exposes OnOffAuto instead of > bool. IMHO this shouldn't be implemented in terms of On/Off auto, as it is misleadingly accepting much more than PROP_ON_OFF accepts. Rather it should be just DEFINE_PROP_AUTO_BIT64, implemented in terms of 'bool', with an extra 'auto' value. With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
On 2024/07/15 20:47, Daniel P. Berrangé wrote: > On Sun, Jul 14, 2024 at 02:11:02PM +0900, Akihiko Odaki wrote: >> DEFINE_PROP_ON_OFF_AUTO_BIT64() corresponds to DEFINE_PROP_ON_OFF_AUTO() >> as DEFINE_PROP_BIT64() corresponds to DEFINE_PROP_BOOL(). The difference >> is that DEFINE_PROP_ON_OFF_AUTO_BIT64() exposes OnOffAuto instead of >> bool. > > IMHO this shouldn't be implemented in terms of On/Off auto, > as it is misleadingly accepting much more than PROP_ON_OFF > accepts. Rather it should be just DEFINE_PROP_AUTO_BIT64, > implemented in terms of 'bool', with an extra 'auto' value. I defined it in a way consistent with DEFINE_PROP_ON_OFF_AUTO(). A union of 'bool' and 'auto' would have a behavior somewhat inconsistent with DEFINE_PROP_ON_OFF_AUTO(). Regards, Akihiko Odaki
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