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p54: Move mac80211 glue code
Copy the mac80211 glue code from p54common.c into a new file main.c Signed-off-by: Christian Lamparter <chunkeey@web.de> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Christian Lamparter
John W. Linville
parent
0533f79699
commit
0ac0d6cedf
607
drivers/net/wireless/p54/main.c
Normal file
607
drivers/net/wireless/p54/main.c
Normal file
@ -0,0 +1,607 @@
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/*
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* mac80211 glue code for mac80211 Prism54 drivers
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*
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* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
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* Copyright (c) 2007-2009, Christian Lamparter <chunkeey@web.de>
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* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
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*
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* Based on:
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* - the islsm (softmac prism54) driver, which is:
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* Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
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* - stlc45xx driver
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* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/firmware.h>
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#include <linux/etherdevice.h>
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#include <net/mac80211.h>
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#include "p54.h"
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#include "lmac.h"
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static int modparam_nohwcrypt;
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module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
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MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
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MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
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MODULE_DESCRIPTION("Softmac Prism54 common code");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("prism54common");
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static void p54_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
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enum sta_notify_cmd notify_cmd,
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struct ieee80211_sta *sta)
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{
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struct p54_common *priv = dev->priv;
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switch (notify_cmd) {
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case STA_NOTIFY_ADD:
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case STA_NOTIFY_REMOVE:
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/*
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* Notify the firmware that we don't want or we don't
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* need to buffer frames for this station anymore.
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*/
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p54_sta_unlock(priv, sta->addr);
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break;
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case STA_NOTIFY_AWAKE:
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/* update the firmware's filter table */
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p54_sta_unlock(priv, sta->addr);
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break;
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default:
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break;
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}
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}
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static int p54_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
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bool set)
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{
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struct p54_common *priv = dev->priv;
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return p54_update_beacon_tim(priv, sta->aid, set);
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}
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static int p54_beacon_format_ie_tim(struct sk_buff *skb)
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{
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/*
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* the good excuse for this mess is ... the firmware.
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* The dummy TIM MUST be at the end of the beacon frame,
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* because it'll be overwritten!
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*/
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struct ieee80211_mgmt *mgmt = (void *)skb->data;
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u8 *pos, *end;
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if (skb->len <= sizeof(mgmt))
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return -EINVAL;
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pos = (u8 *)mgmt->u.beacon.variable;
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end = skb->data + skb->len;
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while (pos < end) {
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if (pos + 2 + pos[1] > end)
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return -EINVAL;
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if (pos[0] == WLAN_EID_TIM) {
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u8 dtim_len = pos[1];
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u8 dtim_period = pos[3];
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u8 *next = pos + 2 + dtim_len;
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if (dtim_len < 3)
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return -EINVAL;
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memmove(pos, next, end - next);
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if (dtim_len > 3)
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skb_trim(skb, skb->len - (dtim_len - 3));
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pos = end - (dtim_len + 2);
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/* add the dummy at the end */
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pos[0] = WLAN_EID_TIM;
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pos[1] = 3;
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pos[2] = 0;
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pos[3] = dtim_period;
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pos[4] = 0;
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return 0;
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}
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pos += 2 + pos[1];
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}
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return 0;
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}
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static int p54_beacon_update(struct p54_common *priv,
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struct ieee80211_vif *vif)
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{
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struct sk_buff *beacon;
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__le32 old_beacon_req_id;
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int ret;
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beacon = ieee80211_beacon_get(priv->hw, vif);
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if (!beacon)
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return -ENOMEM;
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ret = p54_beacon_format_ie_tim(beacon);
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if (ret)
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return ret;
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old_beacon_req_id = priv->beacon_req_id;
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priv->beacon_req_id = GET_REQ_ID(beacon);
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ret = p54_tx_80211(priv->hw, beacon);
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if (ret) {
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priv->beacon_req_id = old_beacon_req_id;
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return -ENOSPC;
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}
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priv->tsf_high32 = 0;
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priv->tsf_low32 = 0;
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return 0;
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}
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static int p54_start(struct ieee80211_hw *dev)
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{
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struct p54_common *priv = dev->priv;
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int err;
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mutex_lock(&priv->conf_mutex);
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err = priv->open(dev);
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if (err)
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goto out;
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P54_SET_QUEUE(priv->qos_params[0], 0x0002, 0x0003, 0x0007, 47);
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P54_SET_QUEUE(priv->qos_params[1], 0x0002, 0x0007, 0x000f, 94);
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P54_SET_QUEUE(priv->qos_params[2], 0x0003, 0x000f, 0x03ff, 0);
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P54_SET_QUEUE(priv->qos_params[3], 0x0007, 0x000f, 0x03ff, 0);
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err = p54_set_edcf(priv);
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if (err)
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goto out;
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memset(priv->bssid, ~0, ETH_ALEN);
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priv->mode = NL80211_IFTYPE_MONITOR;
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err = p54_setup_mac(priv);
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if (err) {
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priv->mode = NL80211_IFTYPE_UNSPECIFIED;
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goto out;
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}
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queue_delayed_work(dev->workqueue, &priv->work, 0);
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priv->softled_state = 0;
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err = p54_set_leds(priv);
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out:
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mutex_unlock(&priv->conf_mutex);
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return err;
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}
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static void p54_stop(struct ieee80211_hw *dev)
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{
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struct p54_common *priv = dev->priv;
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int i;
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mutex_lock(&priv->conf_mutex);
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priv->mode = NL80211_IFTYPE_UNSPECIFIED;
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priv->softled_state = 0;
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p54_set_leds(priv);
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cancel_delayed_work_sync(&priv->work);
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priv->stop(dev);
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skb_queue_purge(&priv->tx_pending);
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skb_queue_purge(&priv->tx_queue);
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for (i = 0; i < P54_QUEUE_NUM; i++) {
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priv->tx_stats[i].count = 0;
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priv->tx_stats[i].len = 0;
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}
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priv->beacon_req_id = cpu_to_le32(0);
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priv->tsf_high32 = priv->tsf_low32 = 0;
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mutex_unlock(&priv->conf_mutex);
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}
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static int p54_add_interface(struct ieee80211_hw *dev,
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struct ieee80211_if_init_conf *conf)
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{
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struct p54_common *priv = dev->priv;
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mutex_lock(&priv->conf_mutex);
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if (priv->mode != NL80211_IFTYPE_MONITOR) {
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mutex_unlock(&priv->conf_mutex);
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return -EOPNOTSUPP;
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}
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priv->vif = conf->vif;
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switch (conf->type) {
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case NL80211_IFTYPE_STATION:
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case NL80211_IFTYPE_ADHOC:
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case NL80211_IFTYPE_AP:
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case NL80211_IFTYPE_MESH_POINT:
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priv->mode = conf->type;
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break;
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default:
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mutex_unlock(&priv->conf_mutex);
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return -EOPNOTSUPP;
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}
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memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
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p54_setup_mac(priv);
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mutex_unlock(&priv->conf_mutex);
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return 0;
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}
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static void p54_remove_interface(struct ieee80211_hw *dev,
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struct ieee80211_if_init_conf *conf)
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{
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struct p54_common *priv = dev->priv;
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mutex_lock(&priv->conf_mutex);
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priv->vif = NULL;
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if (priv->beacon_req_id) {
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p54_tx_cancel(priv, priv->beacon_req_id);
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priv->beacon_req_id = cpu_to_le32(0);
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}
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priv->mode = NL80211_IFTYPE_MONITOR;
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memset(priv->mac_addr, 0, ETH_ALEN);
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memset(priv->bssid, 0, ETH_ALEN);
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p54_setup_mac(priv);
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mutex_unlock(&priv->conf_mutex);
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}
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static int p54_config(struct ieee80211_hw *dev, u32 changed)
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{
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int ret = 0;
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struct p54_common *priv = dev->priv;
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struct ieee80211_conf *conf = &dev->conf;
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mutex_lock(&priv->conf_mutex);
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if (changed & IEEE80211_CONF_CHANGE_POWER)
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priv->output_power = conf->power_level << 2;
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if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
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ret = p54_scan(priv, P54_SCAN_EXIT, 0);
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if (ret)
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goto out;
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}
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if (changed & IEEE80211_CONF_CHANGE_PS) {
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ret = p54_set_ps(priv);
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if (ret)
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goto out;
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}
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out:
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mutex_unlock(&priv->conf_mutex);
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return ret;
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}
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static void p54_configure_filter(struct ieee80211_hw *dev,
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unsigned int changed_flags,
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unsigned int *total_flags,
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int mc_count, struct dev_mc_list *mclist)
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{
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struct p54_common *priv = dev->priv;
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*total_flags &= FIF_PROMISC_IN_BSS |
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FIF_OTHER_BSS;
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priv->filter_flags = *total_flags;
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if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS))
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p54_setup_mac(priv);
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}
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static int p54_conf_tx(struct ieee80211_hw *dev, u16 queue,
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const struct ieee80211_tx_queue_params *params)
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{
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struct p54_common *priv = dev->priv;
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int ret;
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mutex_lock(&priv->conf_mutex);
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if ((params) && !(queue > 4)) {
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P54_SET_QUEUE(priv->qos_params[queue], params->aifs,
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params->cw_min, params->cw_max, params->txop);
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ret = p54_set_edcf(priv);
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} else
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ret = -EINVAL;
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mutex_unlock(&priv->conf_mutex);
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return ret;
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}
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static void p54_work(struct work_struct *work)
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{
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struct p54_common *priv = container_of(work, struct p54_common,
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work.work);
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if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED))
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return ;
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/*
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* TODO: walk through tx_queue and do the following tasks
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* 1. initiate bursts.
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* 2. cancel stuck frames / reset the device if necessary.
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*/
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p54_fetch_statistics(priv);
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}
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static int p54_get_stats(struct ieee80211_hw *dev,
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struct ieee80211_low_level_stats *stats)
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{
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struct p54_common *priv = dev->priv;
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memcpy(stats, &priv->stats, sizeof(*stats));
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return 0;
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}
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static int p54_get_tx_stats(struct ieee80211_hw *dev,
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struct ieee80211_tx_queue_stats *stats)
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{
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struct p54_common *priv = dev->priv;
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memcpy(stats, &priv->tx_stats[P54_QUEUE_DATA],
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sizeof(stats[0]) * dev->queues);
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return 0;
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}
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static void p54_bss_info_changed(struct ieee80211_hw *dev,
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struct ieee80211_vif *vif,
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struct ieee80211_bss_conf *info,
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u32 changed)
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{
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struct p54_common *priv = dev->priv;
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mutex_lock(&priv->conf_mutex);
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if (changed & BSS_CHANGED_BSSID) {
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memcpy(priv->bssid, info->bssid, ETH_ALEN);
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p54_setup_mac(priv);
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}
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if (changed & BSS_CHANGED_BEACON) {
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p54_scan(priv, P54_SCAN_EXIT, 0);
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p54_setup_mac(priv);
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p54_beacon_update(priv, vif);
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p54_set_edcf(priv);
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}
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if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_BEACON)) {
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priv->use_short_slot = info->use_short_slot;
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p54_set_edcf(priv);
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}
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if (changed & BSS_CHANGED_BASIC_RATES) {
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if (dev->conf.channel->band == IEEE80211_BAND_5GHZ)
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priv->basic_rate_mask = (info->basic_rates << 4);
|
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else
|
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priv->basic_rate_mask = info->basic_rates;
|
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p54_setup_mac(priv);
|
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if (priv->fw_var >= 0x500)
|
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p54_scan(priv, P54_SCAN_EXIT, 0);
|
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}
|
||||
if (changed & BSS_CHANGED_ASSOC) {
|
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if (info->assoc) {
|
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priv->aid = info->aid;
|
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priv->wakeup_timer = info->beacon_int *
|
||||
info->dtim_period * 5;
|
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p54_setup_mac(priv);
|
||||
}
|
||||
}
|
||||
|
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mutex_unlock(&priv->conf_mutex);
|
||||
}
|
||||
|
||||
static int p54_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
|
||||
struct ieee80211_vif *vif, struct ieee80211_sta *sta,
|
||||
struct ieee80211_key_conf *key)
|
||||
{
|
||||
struct p54_common *priv = dev->priv;
|
||||
int slot, ret = 0;
|
||||
u8 algo = 0;
|
||||
u8 *addr = NULL;
|
||||
|
||||
if (modparam_nohwcrypt)
|
||||
return -EOPNOTSUPP;
|
||||
|
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mutex_lock(&priv->conf_mutex);
|
||||
if (cmd == SET_KEY) {
|
||||
switch (key->alg) {
|
||||
case ALG_TKIP:
|
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if (!(priv->privacy_caps & (BR_DESC_PRIV_CAP_MICHAEL |
|
||||
BR_DESC_PRIV_CAP_TKIP))) {
|
||||
ret = -EOPNOTSUPP;
|
||||
goto out_unlock;
|
||||
}
|
||||
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
|
||||
algo = P54_CRYPTO_TKIPMICHAEL;
|
||||
break;
|
||||
case ALG_WEP:
|
||||
if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_WEP)) {
|
||||
ret = -EOPNOTSUPP;
|
||||
goto out_unlock;
|
||||
}
|
||||
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
|
||||
algo = P54_CRYPTO_WEP;
|
||||
break;
|
||||
case ALG_CCMP:
|
||||
if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_AESCCMP)) {
|
||||
ret = -EOPNOTSUPP;
|
||||
goto out_unlock;
|
||||
}
|
||||
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
|
||||
algo = P54_CRYPTO_AESCCMP;
|
||||
break;
|
||||
default:
|
||||
ret = -EOPNOTSUPP;
|
||||
goto out_unlock;
|
||||
}
|
||||
slot = bitmap_find_free_region(priv->used_rxkeys,
|
||||
priv->rx_keycache_size, 0);
|
||||
|
||||
if (slot < 0) {
|
||||
/*
|
||||
* The device supports the choosen algorithm, but the
|
||||
* firmware does not provide enough key slots to store
|
||||
* all of them.
|
||||
* But encryption offload for outgoing frames is always
|
||||
* possible, so we just pretend that the upload was
|
||||
* successful and do the decryption in software.
|
||||
*/
|
||||
|
||||
/* mark the key as invalid. */
|
||||
key->hw_key_idx = 0xff;
|
||||
goto out_unlock;
|
||||
}
|
||||
} else {
|
||||
slot = key->hw_key_idx;
|
||||
|
||||
if (slot == 0xff) {
|
||||
/* This key was not uploaded into the rx key cache. */
|
||||
|
||||
goto out_unlock;
|
||||
}
|
||||
|
||||
bitmap_release_region(priv->used_rxkeys, slot, 0);
|
||||
algo = 0;
|
||||
}
|
||||
|
||||
if (sta)
|
||||
addr = sta->addr;
|
||||
|
||||
ret = p54_upload_key(priv, algo, slot, key->keyidx,
|
||||
key->keylen, addr, key->key);
|
||||
if (ret) {
|
||||
bitmap_release_region(priv->used_rxkeys, slot, 0);
|
||||
ret = -EOPNOTSUPP;
|
||||
goto out_unlock;
|
||||
}
|
||||
|
||||
key->hw_key_idx = slot;
|
||||
|
||||
out_unlock:
|
||||
mutex_unlock(&priv->conf_mutex);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static const struct ieee80211_ops p54_ops = {
|
||||
.tx = p54_tx_80211,
|
||||
.start = p54_start,
|
||||
.stop = p54_stop,
|
||||
.add_interface = p54_add_interface,
|
||||
.remove_interface = p54_remove_interface,
|
||||
.set_tim = p54_set_tim,
|
||||
.sta_notify = p54_sta_notify,
|
||||
.set_key = p54_set_key,
|
||||
.config = p54_config,
|
||||
.bss_info_changed = p54_bss_info_changed,
|
||||
.configure_filter = p54_configure_filter,
|
||||
.conf_tx = p54_conf_tx,
|
||||
.get_stats = p54_get_stats,
|
||||
.get_tx_stats = p54_get_tx_stats
|
||||
};
|
||||
|
||||
struct ieee80211_hw *p54_init_common(size_t priv_data_len)
|
||||
{
|
||||
struct ieee80211_hw *dev;
|
||||
struct p54_common *priv;
|
||||
|
||||
dev = ieee80211_alloc_hw(priv_data_len, &p54_ops);
|
||||
if (!dev)
|
||||
return NULL;
|
||||
|
||||
priv = dev->priv;
|
||||
priv->hw = dev;
|
||||
priv->mode = NL80211_IFTYPE_UNSPECIFIED;
|
||||
priv->basic_rate_mask = 0x15f;
|
||||
spin_lock_init(&priv->tx_stats_lock);
|
||||
skb_queue_head_init(&priv->tx_queue);
|
||||
skb_queue_head_init(&priv->tx_pending);
|
||||
dev->flags = IEEE80211_HW_RX_INCLUDES_FCS |
|
||||
IEEE80211_HW_SIGNAL_DBM |
|
||||
IEEE80211_HW_NOISE_DBM;
|
||||
|
||||
dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
|
||||
BIT(NL80211_IFTYPE_ADHOC) |
|
||||
BIT(NL80211_IFTYPE_AP) |
|
||||
BIT(NL80211_IFTYPE_MESH_POINT);
|
||||
|
||||
dev->channel_change_time = 1000; /* TODO: find actual value */
|
||||
priv->tx_stats[P54_QUEUE_BEACON].limit = 1;
|
||||
priv->tx_stats[P54_QUEUE_FWSCAN].limit = 1;
|
||||
priv->tx_stats[P54_QUEUE_MGMT].limit = 3;
|
||||
priv->tx_stats[P54_QUEUE_CAB].limit = 3;
|
||||
priv->tx_stats[P54_QUEUE_DATA].limit = 5;
|
||||
dev->queues = 1;
|
||||
priv->noise = -94;
|
||||
/*
|
||||
* We support at most 8 tries no matter which rate they're at,
|
||||
* we cannot support max_rates * max_rate_tries as we set it
|
||||
* here, but setting it correctly to 4/2 or so would limit us
|
||||
* artificially if the RC algorithm wants just two rates, so
|
||||
* let's say 4/7, we'll redistribute it at TX time, see the
|
||||
* comments there.
|
||||
*/
|
||||
dev->max_rates = 4;
|
||||
dev->max_rate_tries = 7;
|
||||
dev->extra_tx_headroom = sizeof(struct p54_hdr) + 4 +
|
||||
sizeof(struct p54_tx_data);
|
||||
|
||||
mutex_init(&priv->conf_mutex);
|
||||
mutex_init(&priv->eeprom_mutex);
|
||||
init_completion(&priv->eeprom_comp);
|
||||
INIT_DELAYED_WORK(&priv->work, p54_work);
|
||||
|
||||
return dev;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(p54_init_common);
|
||||
|
||||
int p54_register_common(struct ieee80211_hw *dev, struct device *pdev)
|
||||
{
|
||||
struct p54_common *priv = dev->priv;
|
||||
int err;
|
||||
|
||||
err = ieee80211_register_hw(dev);
|
||||
if (err) {
|
||||
dev_err(pdev, "Cannot register device (%d).\n", err);
|
||||
return err;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_P54_LEDS
|
||||
err = p54_init_leds(priv);
|
||||
if (err)
|
||||
return err;
|
||||
#endif /* CONFIG_P54_LEDS */
|
||||
|
||||
dev_info(pdev, "is registered as '%s'\n", wiphy_name(dev->wiphy));
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(p54_register_common);
|
||||
|
||||
void p54_free_common(struct ieee80211_hw *dev)
|
||||
{
|
||||
struct p54_common *priv = dev->priv;
|
||||
|
||||
kfree(priv->iq_autocal);
|
||||
kfree(priv->output_limit);
|
||||
kfree(priv->curve_data);
|
||||
kfree(priv->used_rxkeys);
|
||||
priv->iq_autocal = NULL;
|
||||
priv->output_limit = NULL;
|
||||
priv->curve_data = NULL;
|
||||
priv->used_rxkeys = NULL;
|
||||
ieee80211_free_hw(dev);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(p54_free_common);
|
||||
|
||||
void p54_unregister_common(struct ieee80211_hw *dev)
|
||||
{
|
||||
struct p54_common *priv = dev->priv;
|
||||
|
||||
#ifdef CONFIG_P54_LEDS
|
||||
p54_unregister_leds(priv);
|
||||
#endif /* CONFIG_P54_LEDS */
|
||||
|
||||
ieee80211_unregister_hw(dev);
|
||||
mutex_destroy(&priv->conf_mutex);
|
||||
mutex_destroy(&priv->eeprom_mutex);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(p54_unregister_common);
|
||||
Loading…
Reference in New Issue
Block a user