Quelle main.c
Sprache: C
// SPDX-License-Identifier: GPL-2.0-only
/*
* mac80211 glue code for mac80211 Prism54 drivers
*
* Copyright ( c ) 2006 , Michael Wu < flamingice @ sourmilk . net >
* Copyright ( c ) 2007 - 2009 , Christian Lamparter < chunkeey @ web . de >
* Copyright 2008 , Johannes Berg < johannes @ sipsolutions . net >
*
* Based on :
* - the islsm ( softmac prism54 ) driver , which is :
* Copyright 2004 - 2006 Jean - Baptiste Note < jbnote @ gmail . com > , et al .
* - stlc45xx driver
* Copyright ( C ) 2008 Nokia Corporation and / or its subsidiary ( - ies ) .
*/
#include <linux/slab.h>
#include <linux/firmware.h>
#include <linux/etherdevice.h>
#include <linux/module.h>
#include <net/mac80211.h>
#include "p54.h"
#include "lmac.h"
static bool modparam_nohwcrypt;
module_param_named(nohwcrypt, modparam_nohwcrypt, bool , 0444 );
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption." );
MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>" );
MODULE_DESCRIPTION("Softmac Prism54 common code" );
MODULE_LICENSE("GPL" );
MODULE_ALIAS("prism54common" );
static int p54_sta_add_remove(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct p54_common *priv = hw->priv;
/*
* Notify the firmware that we don ' t want or we don ' t
* need to buffer frames for this station anymore .
*/
p54_sta_unlock(priv, sta->addr);
return 0 ;
}
static void p54_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
enum sta_notify_cmd notify_cmd,
struct ieee80211_sta *sta)
{
struct p54_common *priv = dev->priv;
switch (notify_cmd) {
case STA_NOTIFY_AWAKE:
/* update the firmware's filter table */
p54_sta_unlock(priv, sta->addr);
break ;
default :
break ;
}
}
static int p54_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
bool set)
{
struct p54_common *priv = dev->priv;
return p54_update_beacon_tim(priv, sta->aid, set);
}
u8 *p54_find_ie(struct sk_buff *skb, u8 ie)
{
struct ieee80211_mgmt *mgmt = (void *)skb->data;
u8 *pos, *end;
if (skb->len <= sizeof (mgmt))
return NULL;
pos = (u8 *)mgmt->u.beacon.variable;
end = skb->data + skb->len;
while (pos < end) {
if (pos + 2 + pos[1 ] > end)
return NULL;
if (pos[0 ] == ie)
return pos;
pos += 2 + pos[1 ];
}
return NULL;
}
static int p54_beacon_format_ie_tim(struct sk_buff *skb)
{
/*
* the good excuse for this mess is . . . the firmware .
* The dummy TIM MUST be at the end of the beacon frame ,
* because it ' ll be overwritten !
*/
u8 *tim;
u8 dtim_len;
u8 dtim_period;
u8 *next;
tim = p54_find_ie(skb, WLAN_EID_TIM);
if (!tim)
return 0 ;
dtim_len = tim[1 ];
dtim_period = tim[3 ];
next = tim + 2 + dtim_len;
if (dtim_len < 3 )
return -EINVAL;
memmove(tim, next, skb_tail_pointer(skb) - next);
tim = skb_tail_pointer(skb) - (dtim_len + 2 );
/* add the dummy at the end */
tim[0 ] = WLAN_EID_TIM;
tim[1 ] = 3 ;
tim[2 ] = 0 ;
tim[3 ] = dtim_period;
tim[4 ] = 0 ;
if (dtim_len > 3 )
skb_trim(skb, skb->len - (dtim_len - 3 ));
return 0 ;
}
static int p54_beacon_update(struct p54_common *priv,
struct ieee80211_vif *vif)
{
struct ieee80211_tx_control control = { };
struct sk_buff *beacon;
int ret;
beacon = ieee80211_beacon_get(priv->hw, vif, 0 );
if (!beacon)
return -ENOMEM;
ret = p54_beacon_format_ie_tim(beacon);
if (ret)
return ret;
/*
* During operation , the firmware takes care of beaconing .
* The driver only needs to upload a new beacon template , once
* the template was changed by the stack or userspace .
*
* LMAC API 3 . 2 . 2 also specifies that the driver does not need
* to cancel the old beacon template by hand , instead the firmware
* will release the previous one through the feedback mechanism .
*/
p54_tx_80211(priv->hw, &control, beacon);
priv->tsf_high32 = 0 ;
priv->tsf_low32 = 0 ;
return 0 ;
}
static int p54_start(struct ieee80211_hw *dev)
{
struct p54_common *priv = dev->priv;
int err;
mutex_lock(&priv->conf_mutex);
err = priv->open(dev);
if (err)
goto out;
P54_SET_QUEUE(priv->qos_params[0 ], 0 x0002, 0 x0003, 0 x0007, 47 );
P54_SET_QUEUE(priv->qos_params[1 ], 0 x0002, 0 x0007, 0 x000f, 94 );
P54_SET_QUEUE(priv->qos_params[2 ], 0 x0003, 0 x000f, 0 x03ff, 0 );
P54_SET_QUEUE(priv->qos_params[3 ], 0 x0007, 0 x000f, 0 x03ff, 0 );
err = p54_set_edcf(priv);
if (err)
goto out;
eth_broadcast_addr(priv->bssid);
priv->mode = NL80211_IFTYPE_MONITOR;
err = p54_setup_mac(priv);
if (err) {
priv->mode = NL80211_IFTYPE_UNSPECIFIED;
goto out;
}
ieee80211_queue_delayed_work(dev, &priv->work, 0 );
priv->softled_state = 0 ;
err = p54_set_leds(priv);
out:
mutex_unlock(&priv->conf_mutex);
return err;
}
static void p54_stop(struct ieee80211_hw *dev, bool suspend)
{
struct p54_common *priv = dev->priv;
int i;
priv->mode = NL80211_IFTYPE_UNSPECIFIED;
priv->softled_state = 0 ;
cancel_delayed_work_sync(&priv->work);
mutex_lock(&priv->conf_mutex);
p54_set_leds(priv);
priv->stop(dev);
skb_queue_purge(&priv->tx_pending);
skb_queue_purge(&priv->tx_queue);
for (i = 0 ; i < P54_QUEUE_NUM; i++) {
priv->tx_stats[i].count = 0 ;
priv->tx_stats[i].len = 0 ;
}
priv->beacon_req_id = cpu_to_le32(0 );
priv->tsf_high32 = priv->tsf_low32 = 0 ;
mutex_unlock(&priv->conf_mutex);
}
static int p54_add_interface(struct ieee80211_hw *dev,
struct ieee80211_vif *vif)
{
struct p54_common *priv = dev->priv;
int err;
vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
mutex_lock(&priv->conf_mutex);
if (priv->mode != NL80211_IFTYPE_MONITOR) {
mutex_unlock(&priv->conf_mutex);
return -EOPNOTSUPP;
}
priv->vif = vif;
switch (vif->type) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_MESH_POINT:
priv->mode = vif->type;
break ;
default :
mutex_unlock(&priv->conf_mutex);
return -EOPNOTSUPP;
}
memcpy(priv->mac_addr, vif->addr, ETH_ALEN);
err = p54_setup_mac(priv);
mutex_unlock(&priv->conf_mutex);
return err;
}
static void p54_remove_interface(struct ieee80211_hw *dev,
struct ieee80211_vif *vif)
{
struct p54_common *priv = dev->priv;
mutex_lock(&priv->conf_mutex);
priv->vif = NULL;
/*
* LMAC API 3 . 2 . 2 states that any active beacon template must be
* canceled by the driver before attempting a mode transition .
*/
if (le32_to_cpu(priv->beacon_req_id) != 0 ) {
p54_tx_cancel(priv, priv->beacon_req_id);
wait_for_completion_interruptible_timeout(&priv->beacon_comp, HZ);
}
priv->mode = NL80211_IFTYPE_MONITOR;
eth_zero_addr(priv->mac_addr);
eth_zero_addr(priv->bssid);
p54_setup_mac(priv);
mutex_unlock(&priv->conf_mutex);
}
static int p54_wait_for_stats(struct ieee80211_hw *dev)
{
struct p54_common *priv = dev->priv;
int ret;
priv->update_stats = true ;
ret = p54_fetch_statistics(priv);
if (ret)
return ret;
ret = wait_for_completion_interruptible_timeout(&priv->stat_comp, HZ);
if (ret == 0 )
return -ETIMEDOUT;
return 0 ;
}
static void p54_reset_stats(struct p54_common *priv)
{
struct ieee80211_channel *chan = priv->curchan;
if (chan) {
struct survey_info *info = &priv->survey[chan->hw_value];
/* only reset channel statistics, don't touch .filled, etc. */
info->time = 0 ;
info->time_busy = 0 ;
info->time_tx = 0 ;
}
priv->update_stats = true ;
priv->survey_raw.active = 0 ;
priv->survey_raw.cca = 0 ;
priv->survey_raw.tx = 0 ;
}
static int p54_config(struct ieee80211_hw *dev, int radio_idx, u32 changed)
{
int ret = 0 ;
struct p54_common *priv = dev->priv;
struct ieee80211_conf *conf = &dev->conf;
mutex_lock(&priv->conf_mutex);
if (changed & IEEE80211_CONF_CHANGE_POWER)
priv->output_power = conf->power_level << 2 ;
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
struct ieee80211_channel *oldchan;
WARN_ON(p54_wait_for_stats(dev));
oldchan = priv->curchan;
priv->curchan = NULL;
ret = p54_scan(priv, P54_SCAN_EXIT, 0 );
if (ret) {
priv->curchan = oldchan;
goto out;
}
/*
* TODO : Use the LM_SCAN_TRAP to determine the current
* operating channel .
*/
priv->curchan = priv->hw->conf.chandef.chan;
p54_reset_stats(priv);
WARN_ON(p54_fetch_statistics(priv));
}
if (changed & IEEE80211_CONF_CHANGE_PS) {
WARN_ON(p54_wait_for_stats(dev));
ret = p54_set_ps(priv);
if (ret)
goto out;
WARN_ON(p54_wait_for_stats(dev));
}
if (changed & IEEE80211_CONF_CHANGE_IDLE) {
WARN_ON(p54_wait_for_stats(dev));
ret = p54_setup_mac(priv);
if (ret)
goto out;
WARN_ON(p54_wait_for_stats(dev));
}
out:
mutex_unlock(&priv->conf_mutex);
return ret;
}
static u64 p54_prepare_multicast(struct ieee80211_hw *dev,
struct netdev_hw_addr_list *mc_list)
{
struct p54_common *priv = dev->priv;
struct netdev_hw_addr *ha;
int i;
BUILD_BUG_ON(ARRAY_SIZE(priv->mc_maclist) !=
ARRAY_SIZE(((struct p54_group_address_table *)NULL)->mac_list));
/*
* The first entry is reserved for the global broadcast MAC .
* Otherwise the firmware will drop it and ARP will no longer work .
*/
i = 1 ;
priv->mc_maclist_num = netdev_hw_addr_list_count(mc_list) + i;
netdev_hw_addr_list_for_each(ha, mc_list) {
memcpy(&priv->mc_maclist[i], ha->addr, ETH_ALEN);
i++;
if (i >= ARRAY_SIZE(priv->mc_maclist))
break ;
}
return 1 ; /* update */
}
static void p54_configure_filter(struct ieee80211_hw *dev,
unsigned int changed_flags,
unsigned int *total_flags,
u64 multicast)
{
struct p54_common *priv = dev->priv;
*total_flags &= FIF_ALLMULTI | FIF_OTHER_BSS;
priv->filter_flags = *total_flags;
if (changed_flags & FIF_OTHER_BSS)
p54_setup_mac(priv);
if (changed_flags & FIF_ALLMULTI || multicast)
p54_set_groupfilter(priv);
}
static int p54_conf_tx(struct ieee80211_hw *dev,
struct ieee80211_vif *vif,
unsigned int link_id, u16 queue,
const struct ieee80211_tx_queue_params *params)
{
struct p54_common *priv = dev->priv;
int ret;
mutex_lock(&priv->conf_mutex);
P54_SET_QUEUE(priv->qos_params[queue], params->aifs,
params->cw_min, params->cw_max, params->txop);
ret = p54_set_edcf(priv);
mutex_unlock(&priv->conf_mutex);
return ret;
}
static void p54_work(struct work_struct *work)
{
struct p54_common *priv = container_of(work, struct p54_common,
work.work);
if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED))
return ;
/*
* TODO : walk through tx_queue and do the following tasks
* 1 . initiate bursts .
* 2 . cancel stuck frames / reset the device if necessary .
*/
mutex_lock(&priv->conf_mutex);
WARN_ON_ONCE(p54_fetch_statistics(priv));
mutex_unlock(&priv->conf_mutex);
}
static int p54_get_stats(struct ieee80211_hw *dev,
struct ieee80211_low_level_stats *stats)
{
struct p54_common *priv = dev->priv;
memcpy(stats, &priv->stats, sizeof (*stats));
return 0 ;
}
static void p54_bss_info_changed(struct ieee80211_hw *dev,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info,
u64 changed)
{
struct p54_common *priv = dev->priv;
mutex_lock(&priv->conf_mutex);
if (changed & BSS_CHANGED_BSSID) {
memcpy(priv->bssid, info->bssid, ETH_ALEN);
p54_setup_mac(priv);
}
if (changed & BSS_CHANGED_BEACON) {
p54_scan(priv, P54_SCAN_EXIT, 0 );
p54_setup_mac(priv);
p54_beacon_update(priv, vif);
p54_set_edcf(priv);
}
if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_BEACON)) {
priv->use_short_slot = info->use_short_slot;
p54_set_edcf(priv);
}
if (changed & BSS_CHANGED_BASIC_RATES) {
if (dev->conf.chandef.chan->band == NL80211_BAND_5GHZ)
priv->basic_rate_mask = (info->basic_rates << 4 );
else
priv->basic_rate_mask = info->basic_rates;
p54_setup_mac(priv);
if (priv->fw_var >= 0 x500)
p54_scan(priv, P54_SCAN_EXIT, 0 );
}
if (changed & BSS_CHANGED_ASSOC) {
if (vif->cfg.assoc) {
priv->aid = vif->cfg.aid;
priv->wakeup_timer = info->beacon_int *
info->dtim_period * 5 ;
p54_setup_mac(priv);
} else {
priv->wakeup_timer = 500 ;
priv->aid = 0 ;
}
}
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;
if (key->flags & IEEE80211_KEY_FLAG_RX_MGMT) {
/*
* Unfortunately most / all firmwares are trying to decrypt
* incoming management frames if a suitable key can be found .
* However , in doing so the data in these frames gets
* corrupted . So , we can ' t have firmware supported crypto
* offload in this case .
*/
return -EOPNOTSUPP;
}
mutex_lock(&priv->conf_mutex);
if (cmd == SET_KEY) {
switch (key->cipher) {
case WLAN_CIPHER_SUITE_TKIP:
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 WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
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 WLAN_CIPHER_SUITE_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 chosen 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 = 0 xff;
goto out_unlock;
}
key->flags |= IEEE80211_KEY_FLAG_RESERVE_TAILROOM;
} else {
slot = key->hw_key_idx;
if (slot == 0 xff) {
/* 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 int p54_get_survey(struct ieee80211_hw *dev, int idx,
struct survey_info *survey)
{
struct p54_common *priv = dev->priv;
struct ieee80211_channel *chan;
int err, tries;
bool in_use = false ;
if (idx >= priv->chan_num)
return -ENOENT;
#define MAX_TRIES 1
for (tries = 0 ; tries < MAX_TRIES; tries++) {
chan = priv->curchan;
if (chan && chan->hw_value == idx) {
mutex_lock(&priv->conf_mutex);
err = p54_wait_for_stats(dev);
mutex_unlock(&priv->conf_mutex);
if (err)
return err;
in_use = true ;
}
memcpy(survey, &priv->survey[idx], sizeof (*survey));
if (in_use) {
/* test if the reported statistics are valid. */
if (survey->time != 0 ) {
survey->filled |= SURVEY_INFO_IN_USE;
} else {
/*
* hw / fw has not accumulated enough sample sets .
* Wait for 100 ms , this ought to be enough to
* get at least one non - null set of channel
* usage statistics .
*/
msleep(100 );
continue ;
}
}
return 0 ;
}
return -ETIMEDOUT;
#undef MAX_TRIES
}
static unsigned int p54_flush_count(struct p54_common *priv)
{
unsigned int total = 0 , i;
BUILD_BUG_ON(P54_QUEUE_NUM > ARRAY_SIZE(priv->tx_stats));
/*
* Because the firmware has the sole control over any frames
* in the P54_QUEUE_BEACON or P54_QUEUE_SCAN queues , they
* don ' t really count as pending or active .
*/
for (i = P54_QUEUE_MGMT; i < P54_QUEUE_NUM; i++)
total += priv->tx_stats[i].len;
return total;
}
static void p54_flush(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
u32 queues, bool drop)
{
struct p54_common *priv = dev->priv;
unsigned int total, i;
/*
* Currently , it wouldn ' t really matter if we wait for one second
* or 15 minutes . But once someone gets around and completes the
* TODOs [ ancel stuck frames / reset device ] in p54_work , it will
* suddenly make sense to wait that long .
*/
i = P54_STATISTICS_UPDATE * 2 / 20 ;
/*
* In this case no locking is required because as we speak the
* queues have already been stopped and no new frames can sneak
* up from behind .
*/
while ((total = p54_flush_count(priv)) && i--) {
/* waste time */
msleep(20 );
}
WARN(total, "tx flush timeout, unresponsive firmware" );
}
static void p54_set_coverage_class(struct ieee80211_hw *dev,
int radio_idx,
s16 coverage_class)
{
struct p54_common *priv = dev->priv;
mutex_lock(&priv->conf_mutex);
/* support all coverage class values as in 802.11-2007 Table 7-27 */
priv->coverage_class = clamp_t(u8, coverage_class, 0 , 31 );
p54_set_edcf(priv);
mutex_unlock(&priv->conf_mutex);
}
static const struct ieee80211_ops p54_ops = {
.add_chanctx = ieee80211_emulate_add_chanctx,
.remove_chanctx = ieee80211_emulate_remove_chanctx,
.change_chanctx = ieee80211_emulate_change_chanctx,
.switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
.tx = p54_tx_80211,
.wake_tx_queue = ieee80211_handle_wake_tx_queue,
.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,
.sta_add = p54_sta_add_remove,
.sta_remove = p54_sta_add_remove,
.set_key = p54_set_key,
.config = p54_config,
.flush = p54_flush,
.bss_info_changed = p54_bss_info_changed,
.prepare_multicast = p54_prepare_multicast,
.configure_filter = p54_configure_filter,
.conf_tx = p54_conf_tx,
.get_stats = p54_get_stats,
.get_survey = p54_get_survey,
.set_coverage_class = p54_set_coverage_class,
};
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 = 0 x15f;
spin_lock_init(&priv->tx_stats_lock);
skb_queue_head_init(&priv->tx_queue);
skb_queue_head_init(&priv->tx_pending);
ieee80211_hw_set(dev, REPORTS_TX_ACK_STATUS);
ieee80211_hw_set(dev, MFP_CAPABLE);
ieee80211_hw_set(dev, PS_NULLFUNC_STACK);
ieee80211_hw_set(dev, SUPPORTS_PS);
ieee80211_hw_set(dev, RX_INCLUDES_FCS);
ieee80211_hw_set(dev, SIGNAL_DBM);
dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC) |
BIT(NL80211_IFTYPE_AP) |
BIT(NL80211_IFTYPE_MESH_POINT);
priv->beacon_req_id = cpu_to_le32(0 );
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);
/*
* For now , disable PS by default because it affects
* link stability significantly .
*/
dev->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
mutex_init(&priv->conf_mutex);
mutex_init(&priv->eeprom_mutex);
init_completion(&priv->stat_comp);
init_completion(&priv->eeprom_comp);
init_completion(&priv->beacon_comp);
INIT_DELAYED_WORK(&priv->work, p54_work);
eth_broadcast_addr(priv->mc_maclist[0 ]);
priv->curchan = NULL;
p54_reset_stats(priv);
return dev;
}
EXPORT_SYMBOL_GPL(p54_init_common);
int p54_register_common(struct ieee80211_hw *dev, struct device *pdev)
{
struct p54_common __maybe_unused *priv = dev->priv;
int err;
err = ieee80211_register_hw(dev);
if (err) {
dev_err(pdev, "Cannot register device (%d).\n" , err);
return err;
}
priv->registered = true ;
#ifdef CONFIG_P54_LEDS
err = p54_init_leds(priv);
if (err) {
p54_unregister_common(dev);
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;
unsigned int i;
for (i = 0 ; i < NUM_NL80211_BANDS; i++)
kfree(priv->band_table[i]);
kfree(priv->iq_autocal);
kfree(priv->output_limit);
kfree(priv->curve_data);
kfree(priv->rssi_db);
bitmap_free(priv->used_rxkeys);
kfree(priv->survey);
priv->iq_autocal = NULL;
priv->output_limit = NULL;
priv->curve_data = NULL;
priv->rssi_db = NULL;
priv->used_rxkeys = NULL;
priv->survey = 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;
if (priv->registered) {
priv->registered = false ;
#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);
Messung V0.5 in Prozent C=97 H=89 G=93
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-10-03)
¤
*© Formatika GbR, Deutschland
2026-10-10
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