On Mon, Jul 08, 2024 at 04:38:06PM +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.
>
> Signed-off-by: Akihiko Odaki <akihiko.od...@daynix.com>
There are a bunch of compatibility issues here.
One is that PROP_BIT accepts different values:
bool qapi_bool_parse(const char *name, const char *value, bool *obj, Error
**errp)
{
if (g_str_equal(value, "on") ||
g_str_equal(value, "yes") ||
g_str_equal(value, "true") ||
g_str_equal(value, "y")) {
*obj = true;
return true;
}
if (g_str_equal(value, "off") ||
g_str_equal(value, "no") ||
g_str_equal(value, "false") ||
g_str_equal(value, "n")) {
*obj = false;
return true;
}
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name,
"'on' or 'off'");
return false;
}
Another is that query now no longer reports the actual
bit value, it reports "auto".
> ---
> include/hw/qdev-properties.h | 18 ++++++++++++
> hw/core/qdev-properties.c | 65
> +++++++++++++++++++++++++++++++++++++++++++-
> 2 files changed, 82 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 86a583574dd0..e1c336435e05 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 +233,68 @@ 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);
> + int value;
> + uint64_t mask = qdev_get_prop_mask64(prop);
> +
> + 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 = qdev_propinfo_get_enum,
> + .set = qdev_propinfo_set_enum,
> + .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,
>
> --
> 2.45.2
