Return-path: Received: from fmmailgate03.web.de ([217.72.192.234]:50003 "EHLO fmmailgate03.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751711AbYKOSa3 (ORCPT ); Sat, 15 Nov 2008 13:30:29 -0500 From: Christian Lamparter To: linux-wireless@vger.kernel.org Subject: [RFC][RFT][PATCH] p54: refactoring Date: Sat, 15 Nov 2008 19:30:27 +0100 Cc: Johannes Berg MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Message-Id: <200811151930.27878.chunkeey@web.de> (sfid-20081115_193033_239902_FADB65BD) Sender: linux-wireless-owner@vger.kernel.org List-ID: Thanks to the introduction of "changed" flags, we no longer have to do the bookkeeping of p54's firmware state for everything. Thus we can cut down redundancy. Signed-off-by: Christian Lamparter --- diff -Nurp a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c --- a/drivers/net/wireless/p54/p54common.c 2008-11-15 19:07:39.000000000 +0100 +++ b/drivers/net/wireless/p54/p54common.c 2008-11-15 19:13:16.000000000 +0100 @@ -1273,11 +1273,12 @@ static int p54_tx(struct ieee80211_hw *d return 0; } -static int p54_setup_mac(struct ieee80211_hw *dev, u16 mode, const u8 *bssid) +static int p54_setup_mac(struct ieee80211_hw *dev) { struct p54_common *priv = dev->priv; struct sk_buff *skb; struct p54_setup_mac *setup; + u16 mode; skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*setup) + sizeof(struct p54_hdr), P54_CONTROL_TYPE_SETUP, @@ -1286,14 +1287,31 @@ static int p54_setup_mac(struct ieee8021 return -ENOMEM; setup = (struct p54_setup_mac *) skb_put(skb, sizeof(*setup)); - priv->mac_mode = mode; + if (dev->conf.radio_enabled) { + switch (priv->mode) { + case NL80211_IFTYPE_STATION: + mode = P54_FILTER_TYPE_STATION; + break; + case NL80211_IFTYPE_AP: + mode = P54_FILTER_TYPE_AP; + break; + case NL80211_IFTYPE_ADHOC: + case NL80211_IFTYPE_MESH_POINT: + mode = P54_FILTER_TYPE_IBSS; + break; + default: + mode = P54_FILTER_TYPE_NONE; + break; + } + if (priv->filter_flags & FIF_PROMISC_IN_BSS) + mode |= P54_FILTER_TYPE_TRANSPARENT; + } else + mode = P54_FILTER_TYPE_RX_DISABLED; + setup->mac_mode = cpu_to_le16(mode); memcpy(setup->mac_addr, priv->mac_addr, ETH_ALEN); - if (!bssid) - memset(setup->bssid, ~0, ETH_ALEN); - else - memcpy(setup->bssid, bssid, ETH_ALEN); - setup->rx_antenna = priv->rx_antenna; + memcpy(setup->bssid, priv->bssid, ETH_ALEN); + setup->rx_antenna = 2; /* automatic */ setup->rx_align = 0; if (priv->fw_var < 0x500) { setup->v1.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask); @@ -1322,14 +1340,14 @@ static int p54_setup_mac(struct ieee8021 return 0; } -static int p54_set_freq(struct ieee80211_hw *dev, u16 frequency) +static int p54_set_freq(struct ieee80211_hw *dev) { struct p54_common *priv = dev->priv; struct sk_buff *skb; struct p54_scan *chan; unsigned int i; void *entry; - __le16 freq = cpu_to_le16(frequency); + __le16 freq = cpu_to_le16(dev->conf.channel->center_freq); skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*chan) + sizeof(struct p54_hdr), P54_CONTROL_TYPE_SCAN, @@ -1583,10 +1601,14 @@ static int p54_start(struct ieee80211_hw err = p54_init_stats(dev); if (err) goto out; - err = p54_setup_mac(dev, P54_FILTER_TYPE_NONE, NULL); - if (err) - goto out; + + memset(priv->bssid, ~0, ETH_ALEN); priv->mode = NL80211_IFTYPE_MONITOR; + err = p54_setup_mac(dev); + if (err) { + priv->mode = NL80211_IFTYPE_UNSPECIFIED; + goto out; + } out: mutex_unlock(&priv->conf_mutex); @@ -1639,27 +1661,8 @@ static int p54_add_interface(struct ieee } memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); - - p54_setup_mac(dev, P54_FILTER_TYPE_NONE, NULL); - - switch (conf->type) { - case NL80211_IFTYPE_STATION: - p54_setup_mac(dev, P54_FILTER_TYPE_STATION, NULL); - break; - case NL80211_IFTYPE_AP: - p54_setup_mac(dev, P54_FILTER_TYPE_AP, priv->mac_addr); - break; - case NL80211_IFTYPE_ADHOC: - case NL80211_IFTYPE_MESH_POINT: - p54_setup_mac(dev, P54_FILTER_TYPE_IBSS, NULL); - break; - default: - BUG(); /* impossible */ - break; - } - + p54_setup_mac(dev); p54_set_leds(dev, 1, 0, 0); - mutex_unlock(&priv->conf_mutex); return 0; } @@ -1672,9 +1675,10 @@ static void p54_remove_interface(struct mutex_lock(&priv->conf_mutex); if (priv->cached_beacon) p54_tx_cancel(dev, priv->cached_beacon); - p54_setup_mac(dev, P54_FILTER_TYPE_NONE, NULL); priv->mode = NL80211_IFTYPE_MONITOR; memset(priv->mac_addr, 0, ETH_ALEN); + memset(priv->bssid, 0, ETH_ALEN); + p54_setup_mac(dev); mutex_unlock(&priv->conf_mutex); } @@ -1685,11 +1689,20 @@ static int p54_config(struct ieee80211_h struct ieee80211_conf *conf = &dev->conf; mutex_lock(&priv->conf_mutex); - priv->rx_antenna = 2; /* automatic */ - priv->output_power = conf->power_level << 2; - ret = p54_set_freq(dev, conf->channel->center_freq); - if (!ret) - ret = p54_set_edcf(dev); + if (changed & IEEE80211_CONF_CHANGE_POWER) + priv->output_power = conf->power_level << 2; + if (changed & IEEE80211_CONF_CHANGE_RADIO_ENABLED) { + ret = p54_setup_mac(dev); + if (ret) + goto out; + } + if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { + ret = p54_set_freq(dev); + if (ret) + goto out; + } + +out: mutex_unlock(&priv->conf_mutex); return ret; } @@ -1702,36 +1715,30 @@ static int p54_config_interface(struct i int ret = 0; mutex_lock(&priv->conf_mutex); - switch (priv->mode) { - case NL80211_IFTYPE_STATION: - ret = p54_setup_mac(dev, P54_FILTER_TYPE_STATION, conf->bssid); + if (conf->changed & IEEE80211_IFCC_BSSID) { + memcpy(priv->bssid, conf->bssid, ETH_ALEN); + ret = p54_setup_mac(dev); if (ret) goto out; - ret = p54_set_leds(dev, 1, - !is_multicast_ether_addr(conf->bssid), 0); + } + + if (conf->changed & IEEE80211_IFCC_BEACON) { + ret = p54_set_freq(dev); if (ret) goto out; - memcpy(priv->bssid, conf->bssid, ETH_ALEN); - break; - case NL80211_IFTYPE_AP: - case NL80211_IFTYPE_ADHOC: - case NL80211_IFTYPE_MESH_POINT: - memcpy(priv->bssid, conf->bssid, ETH_ALEN); - ret = p54_set_freq(dev, dev->conf.channel->center_freq); + ret = p54_setup_mac(dev); if (ret) goto out; - ret = p54_setup_mac(dev, priv->mac_mode, priv->bssid); + ret = p54_beacon_update(dev, vif); + if (ret) + goto out; + ret = p54_set_edcf(dev); if (ret) goto out; - if (conf->changed & IEEE80211_IFCC_BEACON) { - ret = p54_beacon_update(dev, vif); - if (ret) - goto out; - ret = p54_set_edcf(dev); - if (ret) - goto out; - } } + + ret = p54_set_leds(dev, 1, !is_multicast_ether_addr(priv->bssid), 0); + out: mutex_unlock(&priv->conf_mutex); return ret; @@ -1744,25 +1751,14 @@ static void p54_configure_filter(struct { struct p54_common *priv = dev->priv; - *total_flags &= FIF_BCN_PRBRESP_PROMISC | - FIF_PROMISC_IN_BSS | - FIF_FCSFAIL; + *total_flags &= FIF_PROMISC_IN_BSS | + (*total_flags & FIF_PROMISC_IN_BSS) ? + FIF_FCSFAIL : 0; priv->filter_flags = *total_flags; - if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { - if (*total_flags & FIF_BCN_PRBRESP_PROMISC) - p54_setup_mac(dev, priv->mac_mode, NULL); - else - p54_setup_mac(dev, priv->mac_mode, priv->bssid); - } - - if (changed_flags & FIF_PROMISC_IN_BSS) { - if (*total_flags & FIF_PROMISC_IN_BSS) - p54_setup_mac(dev, priv->mac_mode | 0x8, NULL); - else - p54_setup_mac(dev, priv->mac_mode & ~0x8, priv->bssid); - } + if (changed_flags & FIF_PROMISC_IN_BSS) + p54_setup_mac(dev); } static int p54_conf_tx(struct ieee80211_hw *dev, u16 queue, @@ -1860,16 +1856,16 @@ static void p54_bss_info_changed(struct priv->basic_rate_mask = (info->basic_rates << 4); else priv->basic_rate_mask = info->basic_rates; - p54_setup_mac(dev, priv->mac_mode, priv->bssid); + p54_setup_mac(dev); if (priv->fw_var >= 0x500) - p54_set_freq(dev, dev->conf.channel->center_freq); + p54_set_freq(dev); } if (changed & BSS_CHANGED_ASSOC) { if (info->assoc) { priv->aid = info->aid; priv->wakeup_timer = info->beacon_int * info->dtim_period * 5; - p54_setup_mac(dev, priv->mac_mode, priv->bssid); + p54_setup_mac(dev); } } diff -Nurp a/drivers/net/wireless/p54/p54.h b/drivers/net/wireless/p54/p54.h --- a/drivers/net/wireless/p54/p54.h 2008-11-15 01:26:56.000000000 +0100 +++ b/drivers/net/wireless/p54/p54.h 2008-11-15 18:14:24.000000000 +0100 @@ -85,7 +85,6 @@ struct p54_common { struct mutex conf_mutex; u8 mac_addr[ETH_ALEN]; u8 bssid[ETH_ALEN]; - u16 mac_mode; struct pda_iq_autocal_entry *iq_autocal; unsigned int iq_autocal_len; struct pda_channel_output_limit *output_limit; @@ -95,7 +94,6 @@ struct p54_common { bool use_short_slot; u16 rxhw; u8 version; - u8 rx_antenna; unsigned int tx_hdr_len; unsigned int fw_var; unsigned int fw_interface;