From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39694) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vlnbm-0002ih-1N for qemu-devel@nongnu.org; Wed, 27 Nov 2013 17:29:30 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Vlnbe-0007gB-Hz for qemu-devel@nongnu.org; Wed, 27 Nov 2013 17:29:21 -0500 Received: from mx1.redhat.com ([209.132.183.28]:30456) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vlnbe-0007fw-9G for qemu-devel@nongnu.org; Wed, 27 Nov 2013 17:29:14 -0500 From: Igor Mammedov Date: Wed, 27 Nov 2013 23:28:52 +0100 Message-Id: <1385591336-2755-13-git-send-email-imammedo@redhat.com> In-Reply-To: <1385591336-2755-1-git-send-email-imammedo@redhat.com> References: <1385591336-2755-1-git-send-email-imammedo@redhat.com> Subject: [Qemu-devel] [PATCH 12/16] qdev: introduce qdev_prop_find_bit() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: afaerber@suse.de helper to find a static property corresponding to a specific bit in a specified field. Signed-off-by: Igor Mammedov --- hw/core/qdev-properties.c | 15 +++++++++++++++ include/hw/qdev-properties.h | 13 +++++++++++++ 2 files changed, 28 insertions(+) diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c index dc8ae69..5b8b059 100644 --- a/hw/core/qdev-properties.c +++ b/hw/core/qdev-properties.c @@ -965,6 +965,21 @@ static Property *qdev_prop_find(DeviceState *dev, const char *name) return NULL; } +const Property *qdev_prop_find_bit(const DeviceClass *dc, const int offset, + const uint8_t bitnr) +{ + const Property *prop; + + QDEV_CLASS_FOREACH(dc, dc) { + QDEV_PROP_FOREACH(prop, dc) { + if (prop->offset == offset && prop->bitnr == bitnr) { + return prop; + } + } + } + return NULL; +} + void error_set_from_qdev_prop_error(Error **errp, int ret, DeviceState *dev, Property *prop, const char *value) { diff --git a/include/hw/qdev-properties.h b/include/hw/qdev-properties.h index 692f82e..c559197 100644 --- a/include/hw/qdev-properties.h +++ b/include/hw/qdev-properties.h @@ -195,4 +195,17 @@ void qdev_property_add_static(DeviceState *dev, Property *prop, Error **errp); */ void qdev_prop_set_after_realize(DeviceState *dev, const char *name, Error **errp); + +#define QDEV_PROP_FOREACH(_var, _class) \ + for ((_var) = DEVICE_CLASS((_class))->props; \ + (_var) && (_var)->name; \ + (_var)++) + +#define QDEV_CLASS_FOREACH(_var, _class) \ + for ((_var) = (_class); \ + (_var) != DEVICE_CLASS(object_class_by_name(TYPE_DEVICE)); \ + (_var) = DEVICE_CLASS(object_class_get_parent(OBJECT_CLASS((_var))))) + +const Property *qdev_prop_find_bit(const DeviceClass *dc, const int offset, + const uint8_t bitnr); #endif -- 1.8.3.1