From patchwork Thu Apr 7 18:54:03 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Aring X-Patchwork-Id: 8776061 Return-Path: X-Original-To: patchwork-linux-wpan@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 207929F3D1 for ; Thu, 7 Apr 2016 18:54:57 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4C5002014A for ; Thu, 7 Apr 2016 18:54:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DC57A2025A for ; Thu, 7 Apr 2016 18:54:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757412AbcDGSye (ORCPT ); Thu, 7 Apr 2016 14:54:34 -0400 Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:39489 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757415AbcDGSyd (ORCPT ); Thu, 7 Apr 2016 14:54:33 -0400 Received: from gallifrey.ext.pengutronix.de ([2001:67c:670:201:5054:ff:fe8d:eefb] helo=omega.localdomain) by metis.ext.pengutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1aoF4Z-0003du-QB; Thu, 07 Apr 2016 20:54:31 +0200 From: Alexander Aring To: linux-wpan@vger.kernel.org Cc: kernel@pengutronix.de, jukka.rissanen@linux.intel.com, hannes@stressinduktion.org, stefan@osg.samsung.com, mcr@sandelman.ca, werner@almesberger.net, Alexander Aring Subject: [RFCv2 bluetooth-next 02/21] ieee802154: add short address helpers Date: Thu, 7 Apr 2016 20:54:03 +0200 Message-Id: <1460055262-4330-3-git-send-email-aar@pengutronix.de> X-Mailer: git-send-email 2.8.0 In-Reply-To: <1460055262-4330-1-git-send-email-aar@pengutronix.de> References: <1460055262-4330-1-git-send-email-aar@pengutronix.de> X-SA-Exim-Connect-IP: 2001:67c:670:201:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: aar@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-wpan@vger.kernel.org Sender: linux-wpan-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wpan@vger.kernel.org X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch introduce some short address handling functionality into ieee802154 headers. Reviewed-by: Stefan Schmidt Signed-off-by: Alexander Aring --- include/linux/ieee802154.h | 29 +++++++++++++++++++++++++++++ include/net/mac802154.h | 10 ++++++++++ 2 files changed, 39 insertions(+) diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h index 303f446..864fdda 100644 --- a/include/linux/ieee802154.h +++ b/include/linux/ieee802154.h @@ -47,6 +47,7 @@ #define IEEE802154_ADDR_SHORT_UNSPEC 0xfffe #define IEEE802154_EXTENDED_ADDR_LEN 8 +#define IEEE802154_SHORT_ADDR_LEN 2 #define IEEE802154_LIFS_PERIOD 40 #define IEEE802154_SIFS_PERIOD 12 @@ -280,6 +281,34 @@ static inline bool ieee802154_is_valid_extended_unicast_addr(__le64 addr) } /** + * ieee802154_is_broadcast_short_addr - check if short addr is broadcast + * @addr: short addr to check + */ +static inline bool ieee802154_is_broadcast_short_addr(__le16 addr) +{ + return (addr == cpu_to_le16(IEEE802154_ADDR_SHORT_BROADCAST)); +} + +/** + * ieee802154_is_unspec_short_addr - check if short addr is unspecified + * @addr: short addr to check + */ +static inline bool ieee802154_is_unspec_short_addr(__le16 addr) +{ + return (addr == cpu_to_le16(IEEE802154_ADDR_SHORT_UNSPEC)); +} + +/** + * ieee802154_is_valid_src_short_addr - check if source short address is valid + * @addr: short addr to check + */ +static inline bool ieee802154_is_valid_src_short_addr(__le16 addr) +{ + return !(ieee802154_is_broadcast_short_addr(addr) || + ieee802154_is_unspec_short_addr(addr)); +} + +/** * ieee802154_random_extended_addr - generates a random extended address * @addr: extended addr pointer to place the random address */ diff --git a/include/net/mac802154.h b/include/net/mac802154.h index 6cd7a70..e465c85 100644 --- a/include/net/mac802154.h +++ b/include/net/mac802154.h @@ -288,6 +288,16 @@ static inline void ieee802154_le16_to_be16(void *be16_dst, const void *le16_src) } /** + * ieee802154_be16_to_le16 - copies and convert be16 to le16 + * @le16_dst: le16 destination pointer + * @be16_src: be16 source pointer + */ +static inline void ieee802154_be16_to_le16(void *le16_dst, const void *be16_src) +{ + put_unaligned_le16(get_unaligned_be16(be16_src), le16_dst); +} + +/** * ieee802154_alloc_hw - Allocate a new hardware device * * This must be called once for each hardware device. The returned pointer