From patchwork Thu May 3 13:16:55 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomasz Bursztyka X-Patchwork-Id: 156697 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from maxx.maxx.shmoo.com (maxx.shmoo.com [205.134.188.171]) by ozlabs.org (Postfix) with ESMTP id 4605AB6FA8 for ; Thu, 3 May 2012 23:16:34 +1000 (EST) Received: from localhost (localhost [127.0.0.1]) by maxx.maxx.shmoo.com (Postfix) with ESMTP id A09629C1A3; Thu, 3 May 2012 09:16:14 -0400 (EDT) X-Virus-Scanned: amavisd-new at maxx.shmoo.com Received: from maxx.maxx.shmoo.com ([127.0.0.1]) by localhost (maxx.shmoo.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id DVauBn4mm6YO; Thu, 3 May 2012 09:16:14 -0400 (EDT) Received: from maxx.shmoo.com (localhost [127.0.0.1]) by maxx.maxx.shmoo.com (Postfix) with ESMTP id DF4C49D28E; Thu, 3 May 2012 09:15:20 -0400 (EDT) X-Original-To: mailman-post+hostap@maxx.shmoo.com Delivered-To: mailman-post+hostap@maxx.shmoo.com Received: from localhost (localhost [127.0.0.1]) by maxx.maxx.shmoo.com (Postfix) with ESMTP id 357159D28E for ; Thu, 3 May 2012 09:15:20 -0400 (EDT) X-Virus-Scanned: amavisd-new at maxx.shmoo.com Received: from maxx.maxx.shmoo.com ([127.0.0.1]) by localhost (maxx.shmoo.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zkIbop3HCaN2 for ; Thu, 3 May 2012 09:15:15 -0400 (EDT) Received: from mga03.intel.com (mga03.intel.com [143.182.124.21]) by maxx.maxx.shmoo.com (Postfix) with ESMTP id 96B989D27B for ; Thu, 3 May 2012 09:14:59 -0400 (EDT) Received: from azsmga001.ch.intel.com ([10.2.17.19]) by azsmga101.ch.intel.com with ESMTP; 03 May 2012 06:14:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.71,315,1320652800"; d="scan'208";a="138435017" Received: from mriya.fi.intel.com ([10.237.68.145]) by azsmga001.ch.intel.com with ESMTP; 03 May 2012 06:14:58 -0700 From: Tomasz Bursztyka To: hostap@lists.shmoo.com Subject: [PATCH 6/7] Adding autoscan module named exponential Date: Thu, 3 May 2012 16:16:55 +0300 Message-Id: <1336051016-15005-7-git-send-email-tomasz.bursztyka@linux.intel.com> X-Mailer: git-send-email 1.7.8.5 In-Reply-To: <1336051016-15005-1-git-send-email-tomasz.bursztyka@linux.intel.com> References: <1336051016-15005-1-git-send-email-tomasz.bursztyka@linux.intel.com> X-BeenThere: hostap@lists.shmoo.com X-Mailman-Version: 2.1.9 Precedence: list List-Id: HostAP Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: hostap-bounces@lists.shmoo.com Errors-To: hostap-bounces@lists.shmoo.com This module will compute the interval on a base exponential. Thus, params to this module are following this format: : Signed-hostap: Tomasz Bursztyka --- wpa_supplicant/Makefile | 6 ++ wpa_supplicant/autoscan.c | 7 ++ wpa_supplicant/autoscan_exponential.c | 105 +++++++++++++++++++++++++++++++++ 3 files changed, 118 insertions(+), 0 deletions(-) create mode 100644 wpa_supplicant/autoscan_exponential.c diff --git a/wpa_supplicant/Makefile b/wpa_supplicant/Makefile index d281ddb..859db6b 100644 --- a/wpa_supplicant/Makefile +++ b/wpa_supplicant/Makefile @@ -1311,6 +1311,12 @@ CFLAGS += -DCONFIG_BGSCAN OBJS += bgscan.o endif +ifdef CONFIG_AUTOSCAN_EXPONENTIAL +CFLAGS += -DCONFIG_AUTOSCAN_EXPONENTIAL +OBJS += autoscan_exponential.o +NEED_AUTOSCAN=y +endif + ifdef NEED_AUTOSCAN CFLAGS += -DCONFIG_AUTOSCAN OBJS += autoscan.o diff --git a/wpa_supplicant/autoscan.c b/wpa_supplicant/autoscan.c index a586f41..d2645bc 100644 --- a/wpa_supplicant/autoscan.c +++ b/wpa_supplicant/autoscan.c @@ -20,7 +20,14 @@ #include "scan.h" #include "autoscan.h" +#ifdef CONFIG_AUTOSCAN_EXPONENTIAL +extern const struct autoscan_ops autoscan_exponential_ops; +#endif /* CONFIG_AUTOSCAN_EXPONENTIAL */ + static const struct autoscan_ops * autoscan_modules[] = { +#ifdef CONFIG_AUTOSCAN_EXPONENTIAL + &autoscan_exponential_ops, +#endif /* CONFIG_AUTOSCAN_EXPONENTIAL */ NULL }; diff --git a/wpa_supplicant/autoscan_exponential.c b/wpa_supplicant/autoscan_exponential.c new file mode 100644 index 0000000..f0c4a81 --- /dev/null +++ b/wpa_supplicant/autoscan_exponential.c @@ -0,0 +1,105 @@ +/* + * WPA Supplicant - auto scan exponential module + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Alternatively, this software may be distributed under the terms of BSD + * license. + * + * See README and COPYING for more details. + */ + +#include "includes.h" + +#include "common.h" +#include "wpa_supplicant_i.h" +#include "autoscan.h" + +struct autoscan_exponential_data { + struct wpa_supplicant *wpa_s; + int base; + int limit; + int interval; +}; + + +static int autoscan_exponential_get_params(struct autoscan_exponential_data *data, + const char *params) +{ + const char *pos; + + if (params == NULL) + return -1; + + data->base = atoi(params); + + pos = os_strchr(params, ':'); + if (pos == NULL) + return -1; + + pos++; + data->limit = atoi(pos); + + return 0; +} + + +static void * autoscan_exponential_init(struct wpa_supplicant *wpa_s, + const char *params) +{ + struct autoscan_exponential_data *data; + + data = os_zalloc(sizeof(struct autoscan_exponential_data)); + if (data == NULL) + return NULL; + + if (autoscan_exponential_get_params(data, params) < 0) { + os_free(data); + return NULL; + } + + wpa_printf(MSG_DEBUG, "autoscan exponential: base exponential is %d " + "and limit is %d", data->base, data->limit); + + data->wpa_s = wpa_s; + + return data; +} + + +static void autoscan_exponential_deinit(void *priv) +{ + struct autoscan_exponential_data *data = priv; + + os_free(data); +} + + +static int autoscan_exponential_notify_scan(void *priv, + struct wpa_scan_results *scan_res) +{ + struct autoscan_exponential_data *data = priv; + + wpa_printf(MSG_DEBUG, "autoscan exponential: scan result notification"); + + if (data->interval >= data->limit) + return data->limit; + + if (data->interval <= 0) + data->interval = data->base; + + data->interval = data->interval * data->base; + + return data->interval; + +} + + +const struct autoscan_ops autoscan_exponential_ops = { + .name = "exponential", + .init = autoscan_exponential_init, + .deinit = autoscan_exponential_deinit, + .notify_scan = autoscan_exponential_notify_scan, +};