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esp_mac80211.c
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esp_mac80211.c
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/* Copyright (c) 2008 -2014 Espressif System.
*
* 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.
*
*
* MAC80211 support module
*/
#include <linux/etherdevice.h>
#include <linux/workqueue.h>
#include <linux/nl80211.h>
#include <linux/ieee80211.h>
#include <linux/slab.h>
#include <net/cfg80211.h>
#include <net/mac80211.h>
#include <linux/version.h>
#include <net/regulatory.h>
/* for support scan in p2p concurrent */
#include <../net/mac80211/ieee80211_i.h>
#include "esp_pub.h"
#include "esp_sip.h"
#include "esp_ctrl.h"
#include "esp_sif.h"
#include "esp_debug.h"
#include "esp_wl.h"
#include "esp_utils.h"
#include "esp_mac80211.h"
#define ESP_IEEE80211_DBG esp_dbg
#define GET_NEXT_SEQ(seq) (((seq) +1) & 0x0fff)
extern void reset_signal_count(void);
static void beacon_tim_init(void);
static u8 beacon_tim_save(u8 this_tim);
static bool beacon_tim_alter(struct sk_buff *beacon);
#ifdef P2P_CONCURRENT
static u8 esp_mac_addr[ETH_ALEN * 2];
#endif
static u8 getaddr_index(u8 * addr, struct esp_pub *epub);
static int dup_addr_by_index(u8 *addr, struct esp_pub *epub, u8 index);
static void esp_op_tx(struct ieee80211_hw *hw,
struct ieee80211_tx_control *control, struct sk_buff *skb)
{
struct esp_pub *epub = (struct esp_pub *)hw->priv;
ESP_IEEE80211_DBG(ESP_DBG_LOG, "%s enter\n", __func__);
if (!mod_support_no_txampdu() &&
cfg80211_get_chandef_type(&epub->hw->conf.chandef) != NL80211_CHAN_NO_HT) {
struct ieee80211_tx_info * tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr * wh = (struct ieee80211_hdr *)skb->data;
if(ieee80211_is_data_qos(wh->frame_control)) {
if(!(tx_info->flags & IEEE80211_TX_CTL_AMPDU)) {
u8 tidno = ieee80211_get_qos_ctl(wh)[0] & IEEE80211_QOS_CTL_TID_MASK;
struct ieee80211_sta *sta = control->sta;
struct esp_node * node = (struct esp_node *)sta->drv_priv;
if(sta->ht_cap.ht_supported)
{
struct esp_tx_tid *tid = &node->tid[tidno];
//record ssn
spin_lock_bh(&epub->tx_ampdu_lock);
tid->ssn = GET_NEXT_SEQ(le16_to_cpu(wh->seq_ctrl)>>4);
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "tidno:%u,ssn:%u\n", tidno, tid->ssn);
spin_unlock_bh(&epub->tx_ampdu_lock);
}
} else {
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "tx ampdu pkt, sn:%u, %u\n", le16_to_cpu(wh->seq_ctrl)>>4, skb->len);
}
}
}
#ifdef GEN_ERR_CHECKSUM
esp_gen_err_checksum(skb);
#endif
sip_tx_data_pkt_enqueue(epub, skb);
}
static int esp_op_start(struct ieee80211_hw *hw)
{
struct esp_pub *epub;
ESP_IEEE80211_DBG(ESP_DBG_OP, "%s\n", __func__);
if (!hw) {
ESP_IEEE80211_DBG(ESP_DBG_ERROR, "%s no hw!\n", __func__);
return -EINVAL;
}
epub = (struct esp_pub *)hw->priv;
if (!epub) {
ESP_IEEE80211_DBG(ESP_DBG_ERROR, "%s no epub!\n", __func__);
return EINVAL;
}
/*add rfkill poll function*/
atomic_set(&epub->wl.off, 0);
wiphy_rfkill_start_polling(hw->wiphy);
return 0;
}
static void esp_op_stop(struct ieee80211_hw *hw)
{
struct esp_pub *epub;
ESP_IEEE80211_DBG(ESP_DBG_OP, "%s\n", __func__);
if (!hw) {
ESP_IEEE80211_DBG(ESP_DBG_ERROR, "%s no hw!\n", __func__);
return;
}
epub = (struct esp_pub *)hw->priv;
if (!epub) {
ESP_IEEE80211_DBG(ESP_DBG_ERROR, "%s no epub!\n", __func__);
return;
}
atomic_set(&epub->wl.off, 1);
#ifdef HOST_RESET_BUG
mdelay(200);
#endif
if (epub->wl.scan_req) {
hw_scan_done(epub, true);
epub->wl.scan_req=NULL;
//msleep(2);
}
}
#ifdef CONFIG_PM
static int esp_op_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
{
esp_dbg(ESP_DBG_OP, "%s\n", __func__);
return 0;
}
static int esp_op_resume(struct ieee80211_hw *hw)
{
esp_dbg(ESP_DBG_OP, "%s\n", __func__);
return 0;
}
#endif //CONFIG_PM
void esp_sendup_deauth(struct esp_pub *epub, u8 *sta_addr)
{
struct sk_buff *skb;
struct esp_80211_deauth *deauth;
esp_dbg(ESP_DBG_TRACE, "%s", __func__);
skb = __dev_alloc_skb(sizeof(struct esp_80211_deauth), GFP_KERNEL);
if (!skb)
return;
skb_put(skb, sizeof(struct esp_80211_deauth));
deauth = (struct esp_80211_deauth *)skb->data;
deauth->hdr.frame_control = 0x00c0; /* deauth */
deauth->hdr.duration_id = 0x003c; /* 60ms */
memcpy(deauth->hdr.addr1, epub->master_addr, ETH_ALEN); /* dst */
memcpy(deauth->hdr.addr2, sta_addr, ETH_ALEN); /* src */
memcpy(deauth->hdr.addr3, epub->master_addr, ETH_ALEN); /* bssid */
deauth->hdr.seq_ctrl = 0x0000;
deauth->reason_code = 0x0003; /* sta leaving */
#ifndef RX_SENDUP_SYNC
skb_queue_tail(&epub->rxq, skb);
queue_work(epub->esp_wkq, &sip->epub->sendup_work);
#else
local_bh_disable();
ieee80211_rx(epub->hw, skb);
local_bh_enable();
#endif /* RX_SENDUP_SYNC */
}
static void esp_send_nulldata(struct esp_pub *epub, struct esp_vif *evif, struct esp_node *enode)
{
struct sk_buff *skb;
struct esp_80211_nulldata *nulldata;
struct ieee80211_vif *vif = container_of((void *)evif, struct ieee80211_vif, drv_priv);
esp_dbg(ESP_DBG_TRACE, "%s enter, enode %d", __func__, enode->index);
skb = dev_alloc_skb(epub->hw->extra_tx_headroom+ sizeof(*nulldata));
if (!skb)
return;
skb_reserve(skb, epub->hw->extra_tx_headroom);
skb_put(skb, sizeof(*nulldata));
nulldata = (struct esp_80211_nulldata *)skb->data;
memset(nulldata, 0x00, sizeof(*nulldata));
nulldata->hdr.frame_control = 0x0248; /* null data , FROM DS 1 */
nulldata->hdr.duration_id = 0x003c; /* 60ms */
memcpy(nulldata->hdr.addr1, enode->sta->addr, ETH_ALEN); /* dst */
memcpy(nulldata->hdr.addr2, epub->master_addr, ETH_ALEN); /* bssid */
memcpy(nulldata->hdr.addr3, epub->master_addr, ETH_ALEN); /* src */
nulldata->hdr.seq_ctrl = 0x0000;
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
IEEE80211_SKB_CB(skb)->control.vif = vif;
IEEE80211_SKB_CB(skb)->control.hw_key = NULL;
sip_tx_data_pkt_enqueue(epub, skb);
}
static void esp_send_nulldata_alarm(unsigned long data)
{
u8 tim = 0;
u8 index;
u32 map;
struct esp_node *enode;
struct esp_vif *evif = (struct esp_vif *)data;
struct esp_pub *epub = evif->epub;
esp_dbg(ESP_DBG_TRACE, "%s enter", __func__);
map = epub->enodes_map;
while (map != 0) {
index = ffs(map) - 1;
if (index > ESP_PUB_MAX_STA)
break;
enode = esp_get_node_by_index(epub, index);
if (enode && enode->ifidx == epub->master_ifidx) {
if (atomic_read(&enode->sta_state) == ESP_STA_STATE_NORM) {
if (atomic_dec_and_test(&enode->time_remain)) {
atomic_set(&enode->sta_state, ESP_STA_STATE_WAIT);
esp_send_nulldata(epub, evif, enode);
} else if (atomic_read(&enode->time_remain) == 1) {
tim |= (1<<enode->sta->aid);
}
} else if (atomic_read(&enode->sta_state) == ESP_STA_STATE_WAIT) {
atomic_inc(&enode->loss_count);
if (atomic_read(&enode->loss_count) <= ESP_LOSS_COUNT_MAX) {
atomic_set(&enode->sta_state, ESP_STA_STATE_WAIT);
esp_send_nulldata(epub, evif, enode);
tim |= (1<<enode->sta->aid);
} else {
atomic_set(&enode->sta_state, ESP_STA_STATE_LOST);
esp_sendup_deauth(epub, enode->sta->addr);
}
}
}
map &= ~(1<<index);
}
if (tim) {
beacon_tim_save(tim);
esp_dbg(ESP_DBG_TRACE, "tim 0x%02x", tim);
}
mod_timer(&evif->nulldata_timer, jiffies + msecs_to_jiffies(ESP_ND_TIMER_INTERVAL));
}
void esp_sta_gc_conn_monitor_open(struct esp_pub *epub, struct esp_vif *evif)
{
if (epub == NULL || evif == NULL)
return;
esp_dbg(ESP_DBG_TRACE, "master_ifidx %d\n", epub->master_ifidx);
dup_addr_by_index(epub->master_addr, epub, evif->index);
epub->master_ifidx = evif->index;
init_timer(&evif->nulldata_timer);
evif->nulldata_timer.expires = jiffies + msecs_to_jiffies(1000);
evif->nulldata_timer.data = (unsigned long) evif;
evif->nulldata_timer.function = esp_send_nulldata_alarm;
add_timer(&evif->nulldata_timer);
}
void esp_sta_gc_conn_monitor_close(struct esp_pub *epub, struct esp_vif *evif)
{
if (epub == NULL || evif == NULL)
return;
esp_dbg(ESP_DBG_TRACE, "%s enter", __func__);
del_timer_sync(&evif->nulldata_timer);
memset(epub->master_addr, 0x00, ETH_ALEN);
epub->master_ifidx = ESP_PUB_MAX_VIF;
}
static int esp_op_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct esp_pub *epub = (struct esp_pub *)hw->priv;
struct esp_vif *evif = (struct esp_vif *)vif->drv_priv;
struct sip_cmd_setvif svif;
ESP_IEEE80211_DBG(ESP_DBG_OP, "%s enter: type %d, addr %pM\n", __func__, vif->type, vif->addr);
memset(&svif, 0, sizeof(struct sip_cmd_setvif));
memcpy(svif.mac, vif->addr, ETH_ALEN);
evif->index = svif.index = getaddr_index(vif->addr, epub);
evif->epub = epub;
epub->vif = vif;
svif.set = 1;
if((1 << svif.index) & epub->vif_slot){
ESP_IEEE80211_DBG(ESP_DBG_ERROR, "%s interface %d already used\n", __func__, svif.index);
return -EOPNOTSUPP;
}
epub->vif_slot |= 1 << svif.index;
if (svif.index == ESP_PUB_MAX_VIF) {
ESP_IEEE80211_DBG(ESP_DBG_ERROR, "%s only support MAX %d interface\n", __func__, ESP_PUB_MAX_VIF);
return -EOPNOTSUPP;
}
switch (vif->type) {
case NL80211_IFTYPE_STATION:
//if (svif.index == 1)
// vif->type = NL80211_IFTYPE_UNSPECIFIED;
ESP_IEEE80211_DBG(ESP_SHOW, "%s STA \n", __func__);
svif.op_mode = 0;
svif.is_p2p = 0;
break;
case NL80211_IFTYPE_AP:
ESP_IEEE80211_DBG(ESP_SHOW, "%s AP \n", __func__);
svif.op_mode = 1;
svif.is_p2p = 0;
break;
case NL80211_IFTYPE_P2P_CLIENT:
ESP_IEEE80211_DBG(ESP_SHOW, "%s P2P_CLIENT \n", __func__);
svif.op_mode = 0;
svif.is_p2p = 1;
break;
case NL80211_IFTYPE_P2P_GO:
ESP_IEEE80211_DBG(ESP_SHOW, "%s P2P_GO \n", __func__);
svif.op_mode = 1;
svif.is_p2p = 1;
break;
case NL80211_IFTYPE_UNSPECIFIED:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_MONITOR:
default:
ESP_IEEE80211_DBG(ESP_DBG_ERROR, "%s does NOT support type %d\n", __func__, vif->type);
return -EOPNOTSUPP;
}
sip_cmd(epub, SIP_CMD_SETVIF, (u8 *)&svif, sizeof(struct sip_cmd_setvif));
return 0;
}
static int esp_op_change_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum nl80211_iftype new_type, bool p2p)
{
struct esp_pub *epub = (struct esp_pub *)hw->priv;
struct esp_vif *evif = (struct esp_vif *)vif->drv_priv;
struct sip_cmd_setvif svif;
ESP_IEEE80211_DBG(ESP_DBG_OP, "%s enter,change to if:%d \n", __func__, new_type);
if (new_type == NL80211_IFTYPE_AP) {
ESP_IEEE80211_DBG(ESP_SHOW, "%s enter,change to AP \n", __func__);
}
if (vif->type != new_type) {
ESP_IEEE80211_DBG(ESP_SHOW, "%s type from %d to %d\n", __func__, vif->type, new_type);
}
memset(&svif, 0, sizeof(struct sip_cmd_setvif));
memcpy(svif.mac, vif->addr, ETH_ALEN);
svif.index = evif->index;
svif.set = 2;
switch (new_type) {
case NL80211_IFTYPE_STATION:
svif.op_mode = 0;
svif.is_p2p = p2p;
break;
case NL80211_IFTYPE_AP:
svif.op_mode = 1;
svif.is_p2p = p2p;
break;
case NL80211_IFTYPE_P2P_CLIENT:
svif.op_mode = 0;
svif.is_p2p = 1;
break;
case NL80211_IFTYPE_P2P_GO:
svif.op_mode = 1;
svif.is_p2p = 1;
break;
case NL80211_IFTYPE_UNSPECIFIED:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_AP_VLAN:
case NL80211_IFTYPE_WDS:
case NL80211_IFTYPE_MONITOR:
default:
ESP_IEEE80211_DBG(ESP_DBG_ERROR, "%s does NOT support type %d\n", __func__, vif->type);
return -EOPNOTSUPP;
}
sip_cmd(epub, SIP_CMD_SETVIF, (u8 *)&svif, sizeof(struct sip_cmd_setvif));
return 0;
}
static void esp_op_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct esp_pub *epub = (struct esp_pub *)hw->priv;
struct esp_vif *evif = (struct esp_vif *)vif->drv_priv;
struct sip_cmd_setvif svif;
ESP_IEEE80211_DBG(ESP_DBG_OP, "%s enter, vif addr %pM, beacon enable %x\n", __func__, vif->addr, vif->bss_conf.enable_beacon);
memset(&svif, 0, sizeof(struct sip_cmd_setvif));
svif.index = evif->index;
epub->vif_slot &= ~(1 << svif.index);
if(evif->ap_up){
evif->beacon_interval = 0;
del_timer_sync(&evif->beacon_timer);
evif->ap_up = false;
esp_sta_gc_conn_monitor_close(epub, evif);
}
epub->vif = NULL;
evif->epub = NULL;
sip_cmd(epub, SIP_CMD_SETVIF, (u8 *)&svif, sizeof(struct sip_cmd_setvif));
/* clean up tx/rx queue */
}
#define BEACON_TIM_SAVE_MAX 12
u8 beacon_tim_saved[BEACON_TIM_SAVE_MAX];
int beacon_tim_count;
spinlock_t tim_lock;
static void beacon_tim_init(void)
{
memset(beacon_tim_saved, BEACON_TIM_SAVE_MAX, 0);
beacon_tim_count = 0;
spin_lock_init(&tim_lock);
}
static u8 beacon_tim_save(u8 this_tim)
{
u8 all_tim = 0;
int i;
spin_lock(&tim_lock);
beacon_tim_saved[beacon_tim_count] = this_tim;
if(++beacon_tim_count >= BEACON_TIM_SAVE_MAX)
beacon_tim_count = 0;
for(i = 0; i < BEACON_TIM_SAVE_MAX; i++)
all_tim |= beacon_tim_saved[i];
spin_unlock(&tim_lock);
return all_tim;
}
static bool beacon_tim_alter(struct sk_buff *beacon)
{
u8 *p, *tim_end;
u8 tim_count;
int len;
int remain_len;
struct ieee80211_mgmt * mgmt;
if (beacon == NULL)
return false;
mgmt = (struct ieee80211_mgmt *)((u8 *)beacon->data);
remain_len = beacon->len - ((u8 *)mgmt->u.beacon.variable - (u8 *)mgmt + 12);
p = mgmt->u.beacon.variable;
while (remain_len > 0) {
if (*p == WLAN_EID_TIM) { // tim field
len = *(++p);
tim_end = p + len;
tim_count = *(++p);
p += 2;
//multicast
if(tim_count == 0)
*p |= 0x1;
if((*p & 0xfe) == 0 && tim_end >= p+1){// we only support 8 sta in this case
p++;
*p = beacon_tim_save(*p);
}
return tim_count == 0;
} else {
len = *(++p);
p += (len + 1);
}
remain_len -= (2 + len);
}
return false;
}
unsigned long init_jiffies;
unsigned long cycle_beacon_count;
static void drv_handle_beacon(unsigned long data)
{
struct ieee80211_vif *vif = (struct ieee80211_vif *) data;
struct esp_vif *evif = (struct esp_vif *)vif->drv_priv;
struct sk_buff *beacon;
struct sk_buff *skb;
static int dbgcnt = 0;
bool tim_reach = false;
if(evif->epub == NULL)
return;
mdelay(2400 * (cycle_beacon_count % 25) % 10000 /1000);
beacon = ieee80211_beacon_get(evif->epub->hw, vif);
tim_reach = beacon_tim_alter(beacon);
if (beacon && !(dbgcnt++ % 600)) {
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "beacon length:%d,fc:0x%x\n", beacon->len,
((struct ieee80211_mgmt *)(beacon->data))->frame_control);
}
if(beacon)
sip_tx_data_pkt_enqueue(evif->epub, beacon);
if(cycle_beacon_count++ == 100){
init_jiffies = jiffies;
cycle_beacon_count -= 100;
}
mod_timer(&evif->beacon_timer, init_jiffies + msecs_to_jiffies(cycle_beacon_count * vif->bss_conf.beacon_int*1024/1000));
//FIXME:the packets must be sent at home channel
//send buffer mcast frames
if(tim_reach){
skb = ieee80211_get_buffered_bc(evif->epub->hw, vif);
while (skb) {
sip_tx_data_pkt_enqueue(evif->epub, skb);
skb = ieee80211_get_buffered_bc(evif->epub->hw, vif);
}
}
}
static void init_beacon_timer(struct ieee80211_vif *vif)
{
struct esp_vif *evif = (struct esp_vif *)vif->drv_priv;
ESP_IEEE80211_DBG(ESP_DBG_OP, "%s enter: beacon interval %x\n", __func__, evif->beacon_interval);
beacon_tim_init();
init_timer(&evif->beacon_timer); //TBD, not init here...
cycle_beacon_count = 1;
init_jiffies = jiffies;
evif->beacon_timer.expires = init_jiffies + msecs_to_jiffies(cycle_beacon_count * vif->bss_conf.beacon_int*1024/1000);
evif->beacon_timer.data = (unsigned long) vif;
evif->beacon_timer.function = drv_handle_beacon;
add_timer(&evif->beacon_timer);
}
/*
static void init_beacon_timer(struct ieee80211_vif *vif)
{
struct esp_vif *evif = (struct esp_vif *)vif->drv_priv;
ESP_IEEE80211_DBG(ESP_DBG_OP, " %s enter: beacon interval %x\n", __func__, vif->bss_conf.beacon_int);
init_timer(&evif->beacon_timer); //TBD, not init here...
evif->beacon_timer.expires=jiffies+msecs_to_jiffies(vif->bss_conf.beacon_int*102/100);
evif->beacon_timer.data = (unsigned long) vif;
//evif->beacon_timer.data = (unsigned long) vif;
evif->beacon_timer.function = drv_handle_beacon;
add_timer(&evif->beacon_timer);
}
*/
static int esp_op_config(struct ieee80211_hw *hw, u32 changed)
{
//struct ieee80211_conf *conf = &hw->conf;
struct esp_pub *epub = (struct esp_pub *)hw->priv;
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "%s enter 0x%08x\n", __func__, changed);
if (changed & (IEEE80211_CONF_CHANGE_CHANNEL | IEEE80211_CONF_CHANGE_IDLE)) {
sip_send_config(epub, &hw->conf);
}
#if 0
if (changed & IEEE80211_CONF_CHANGE_PS) {
struct esp_ps *ps = &epub->ps;
ps->dtim_period = conf->ps_dtim_period;
ps->max_sleep_period = conf->max_sleep_period;
esp_ps_config(epub, ps, (conf->flags & IEEE80211_CONF_PS));
}
#endif
return 0;
}
static void esp_op_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info,
u32 changed)
{
struct esp_pub *epub = (struct esp_pub *)hw->priv;
struct esp_vif *evif = (struct esp_vif *)vif->drv_priv;
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
// ieee80211_bss_conf(include/net/mac80211.h) is included in ieee80211_sub_if_data(net/mac80211/ieee80211_i.h) , does bssid=ieee80211_if_ap's ssid ?
// in 2.6.27, ieee80211_sub_if_data has ieee80211_bss_conf while in 2.6.32 ieee80211_sub_if_data don't have ieee80211_bss_conf
// in 2.6.27, ieee80211_bss_conf->enable_beacon don't exist, does it mean it support beacon always?
// ESP_IEEE80211_DBG(ESP_DBG_OP, " %s enter: vif addr %pM, changed %x, assoc %x, bssid %pM\n", __func__, vif->addr, changed, info->assoc, info->bssid);
// sdata->u.sta.bssid
ESP_IEEE80211_DBG(ESP_DBG_OP, "%s enter: changed %x, assoc %x, bssid %pM\n", __func__, changed, info->assoc, info->bssid);
if (vif->type == NL80211_IFTYPE_STATION) {
if ((changed & BSS_CHANGED_BSSID) ||
((changed & BSS_CHANGED_ASSOC) && (info->assoc)))
{
ESP_IEEE80211_DBG(ESP_DBG_TRACE, " %s STA change bssid or assoc\n", __func__);
evif->beacon_interval = info->aid;
memcpy(epub->wl.bssid, (u8*)info->bssid, ETH_ALEN);
sip_send_bss_info_update(epub, evif, (u8*)info->bssid, info->assoc);
} else if ((changed & BSS_CHANGED_ASSOC) && (!info->assoc)) {
ESP_IEEE80211_DBG(ESP_DBG_TRACE, " %s STA change disassoc\n", __func__);
evif->beacon_interval = 0;
memset(epub->wl.bssid, 0, ETH_ALEN);
sip_send_bss_info_update(epub, evif, (u8*)info->bssid, info->assoc);
} else {
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "%s wrong mode of STA mode\n", __func__);
}
} else if (vif->type == NL80211_IFTYPE_AP) {
if ((changed & BSS_CHANGED_BEACON_ENABLED) ||
(changed & BSS_CHANGED_BEACON_INT)) {
ESP_IEEE80211_DBG(ESP_DBG_TRACE, " %s AP change enable %d, interval is %d, bssid %pM\n", __func__, info->enable_beacon, info->beacon_int, info->bssid);
if (info->enable_beacon && evif->ap_up != true) {
evif->beacon_interval = info->beacon_int;
init_beacon_timer(vif);
esp_sta_gc_conn_monitor_open(epub, evif);
sip_send_bss_info_update(epub, evif, (u8*)info->bssid, 2);
evif->ap_up = true;
} else if (!info->enable_beacon && evif->ap_up
&& !test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state)) {
ESP_IEEE80211_DBG(ESP_DBG_TRACE, " %s AP disable beacon, interval is %d\n", __func__, info->beacon_int);
evif->beacon_interval = 0;
del_timer_sync(&evif->beacon_timer);
esp_sta_gc_conn_monitor_close(epub, evif);
sip_send_bss_info_update(epub, evif, (u8*)info->bssid, 2);
evif->ap_up = false;
}
}
} else {
ESP_IEEE80211_DBG(ESP_DBG_ERROR, "%s op mode unspecified\n", __func__);
}
}
static u64 esp_op_prepare_multicast(struct ieee80211_hw *hw,
struct netdev_hw_addr_list *mc_list)
{
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "%s enter \n", __func__);
return 0;
}
static void esp_op_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags,
u64 multicast)
{
struct esp_pub *epub = (struct esp_pub *)hw->priv;
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "%s enter \n", __func__);
epub->rx_filter = 0;
if (*total_flags & FIF_ALLMULTI)
epub->rx_filter |= FIF_ALLMULTI;
*total_flags = epub->rx_filter;
}
#if 0
static int esp_op_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
bool set)
{
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "%s enter \n", __func__);
return 0;
}
#endif
static int esp_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
struct ieee80211_vif *vif, struct ieee80211_sta *sta,
struct ieee80211_key_conf *key)
{
u8 i;
int ret;
struct esp_pub *epub = (struct esp_pub *)hw->priv;
struct esp_vif *evif = (struct esp_vif *)vif->drv_priv;
u8 ifidx = evif->index;
u8 *peer_addr,isvalid;
bool overlap = false;
u8 idx;
ESP_IEEE80211_DBG(ESP_DBG_OP, "%s enter, flags = %x keyindx = %x cmd = %x mac = %pM cipher = %x\n", __func__, key->flags, key->keyidx, cmd, vif->addr, key->cipher);
key->flags= key->flags|IEEE80211_KEY_FLAG_GENERATE_IV;
if (sta) {
if (memcmp(sta->addr, epub->wl.bssid, ETH_ALEN))
peer_addr = sta->addr;
else
peer_addr = epub->wl.bssid;
} else {
peer_addr=epub->wl.bssid;
}
isvalid = (cmd==SET_KEY) ? 1 : 0;
if ((key->flags&IEEE80211_KEY_FLAG_PAIRWISE) || (key->cipher == WLAN_CIPHER_SUITE_WEP40 || key->cipher == WLAN_CIPHER_SUITE_WEP104))
{
if (isvalid) {
idx = key->hw_key_idx - 6;
if (idx < 19 && epub->hi_map[idx].flag != 0) {
memcpy(epub->hi_map[idx].mac, peer_addr, ETH_ALEN);
overlap = true;
esp_dbg(ESP_DBG_ERROR, "key 1 overlap %d\n", idx);
} else {
for (i = 0; i < 19; i++) {
if (epub->hi_map[i].flag == 0) {
epub->hi_map[i].flag = 1;
key->hw_key_idx = i + 6;
memcpy(epub->hi_map[i].mac, peer_addr, ETH_ALEN);
break;
}
}
}
} else {
u8 index = key->hw_key_idx - 6;
epub->hi_map[index].flag = 0;
memset(epub->hi_map[index].mac, 0, ETH_ALEN);
}
} else {
if(isvalid){
idx = key->hw_key_idx - 2 - ifidx * 2;
if (idx < 2 && epub->hi_map[idx].flag != 0) {
memcpy(epub->low_map[ifidx][idx].mac, peer_addr, ETH_ALEN);
overlap = true;
esp_dbg(ESP_DBG_ERROR, "key 2 overlap %d\n", idx);
} else {
for(i = 0; i < 2; i++) {
if (epub->low_map[ifidx][i].flag == 0) {
epub->low_map[ifidx][i].flag = 1;
key->hw_key_idx = i + ifidx * 2 + 2;
memcpy(epub->low_map[ifidx][i].mac, peer_addr, ETH_ALEN);
break;
}
}
}
} else {
u8 index = key->hw_key_idx - 2 - ifidx * 2;
epub->low_map[ifidx][index].flag = 0;
memset(epub->low_map[ifidx][index].mac, 0, ETH_ALEN);
}
//key->hw_key_idx = key->keyidx + ifidx * 2 + 1;
}
if (!overlap) {
if (key->hw_key_idx >= 6) {
/*send sub_scan task to target*/
//epub->wl.ptk = (cmd==SET_KEY) ? key : NULL;
if(isvalid)
atomic_inc(&epub->wl.ptk_cnt);
else
atomic_dec(&epub->wl.ptk_cnt);
if (key->cipher == WLAN_CIPHER_SUITE_WEP40 || key->cipher == WLAN_CIPHER_SUITE_WEP104)
{
if(isvalid)
atomic_inc(&epub->wl.gtk_cnt);
else
atomic_dec(&epub->wl.gtk_cnt);
}
} else {
/*send sub_scan task to target*/
if(isvalid)
atomic_inc(&epub->wl.gtk_cnt);
else
atomic_dec(&epub->wl.gtk_cnt);
if((key->cipher == WLAN_CIPHER_SUITE_WEP40 || key->cipher == WLAN_CIPHER_SUITE_WEP104))
{
if(isvalid)
atomic_inc(&epub->wl.ptk_cnt);
else
atomic_dec(&epub->wl.ptk_cnt);
//epub->wl.ptk = (cmd==SET_KEY) ? key : NULL;
}
}
}
ret = sip_send_setkey(epub, ifidx, peer_addr, key, isvalid);
if((key->cipher == WLAN_CIPHER_SUITE_TKIP || key->cipher == WLAN_CIPHER_SUITE_TKIP))
{
if(ret == 0)
atomic_set(&epub->wl.tkip_key_set, 1);
}
ESP_IEEE80211_DBG(ESP_DBG_OP, "%s exit\n", __func__);
return ret;
}
static void esp_op_update_tkip_key(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_key_conf *conf,
struct ieee80211_sta *sta,
u32 iv32, u16 *phase1key)
{
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "%s enter \n", __func__);
}
void hw_scan_done(struct esp_pub *epub, bool aborted)
{
struct cfg80211_scan_info scan_info;
scan_info.aborted = aborted;
cancel_delayed_work_sync(&epub->scan_timeout_work);
ESSERT(epub->wl.scan_req != NULL);
ieee80211_scan_completed(epub->hw, &scan_info);
if (test_and_clear_bit(ESP_WL_FLAG_STOP_TXQ, &epub->wl.flags)) {
sip_trigger_txq_process(epub->sip);
}
}
static void hw_scan_timeout_report(struct work_struct *work)
{
struct esp_pub *epub =
container_of(work, struct esp_pub, scan_timeout_work.work);
bool aborted;
struct cfg80211_scan_info scan_info;
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "eagle hw scan done\n");
if (test_and_clear_bit(ESP_WL_FLAG_STOP_TXQ, &epub->wl.flags)) {
sip_trigger_txq_process(epub->sip);
}
/*check if normally complete or aborted like timeout/hw error */
aborted = (epub->wl.scan_req) ? true : false;
scan_info.aborted = aborted;
if (aborted==true) {
epub->wl.scan_req = NULL;
}
ieee80211_scan_completed(epub->hw, &scan_info);
}
#if 0
static void esp_op_sw_scan_start(struct ieee80211_hw *hw)
{}
static void esp_op_sw_scan_complete(struct ieee80211_hw *hw)
{
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "%s enter \n", __func__);
}
#endif
#if 0
static int esp_op_get_stats(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats)
{
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "%s enter \n", __func__);
return 0;
}
static void esp_op_get_tkip_seq(struct ieee80211_hw *hw, u8 hw_key_idx,
u32 *iv32, u16 *iv16)
{
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "%s enter \n", __func__);
}
#endif
static int esp_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
{
ESP_IEEE80211_DBG(ESP_DBG_TRACE, "%s enter \n", __func__);
return 0;
}
static int esp_node_attach(struct ieee80211_hw *hw, u8 ifidx, struct ieee80211_sta *sta)
{
struct esp_pub *epub = (struct esp_pub *)hw->priv;
struct esp_node *node;
u8 tidno;
struct esp_tx_tid *tid;
int i;
spin_lock_bh(&epub->tx_ampdu_lock);
if(hweight32(epub->enodes_maps[ifidx]) < ESP_PUB_MAX_STA && (i = ffz(epub->enodes_map)) < ESP_PUB_MAX_STA + 1){
epub->enodes_map |= (1 << i);
epub->enodes_maps[ifidx] |= (1 << i);
node = (struct esp_node *)sta->drv_priv;
epub->enodes[i] = node;
node->sta = sta;
node->ifidx = ifidx;
node->index = i;
atomic_set(&node->loss_count, 0);
atomic_set(&node->time_remain, ESP_ND_TIME_REMAIN_MAX);
atomic_set(&node->sta_state, ESP_STA_STATE_NORM);
for(tidno = 0, tid = &node->tid[tidno]; tidno < WME_NUM_TID; tidno++) {
tid->ssn = 0;
tid->cnt = 0;
tid->state = ESP_TID_STATE_INIT;
}
} else {
i = -1;
}
spin_unlock_bh(&epub->tx_ampdu_lock);
return i;
}
static int esp_node_detach(struct ieee80211_hw *hw, u8 ifidx, struct ieee80211_sta *sta)
{
struct esp_pub *epub = (struct esp_pub *)hw->priv;
u32 map;
int i;
struct esp_node *node = NULL;
spin_lock_bh(&epub->tx_ampdu_lock);
map = epub->enodes_maps[ifidx];
while(map != 0){
i = ffs(map) - 1;
if(epub->enodes[i]->sta == sta){
epub->enodes[i]->sta = NULL;
node = epub->enodes[i];
epub->enodes[i] = NULL;
epub->enodes_map &= ~(1 << i);
epub->enodes_maps[ifidx] &= ~(1 << i);
spin_unlock_bh(&epub->tx_ampdu_lock);
return i;
}
map &= ~(1 << i);
}
spin_unlock_bh(&epub->tx_ampdu_lock);
return -1;
}
struct esp_node * esp_get_node_by_addr(struct esp_pub * epub, const u8 *addr)
{
int i;
u32 map;
struct esp_node *node = NULL;
if(addr == NULL)
return NULL;
spin_lock_bh(&epub->tx_ampdu_lock);
map = epub->enodes_map;
while(map != 0){
i = ffs(map) - 1;
if(i < 0){
spin_unlock_bh(&epub->tx_ampdu_lock);
return NULL;
}
map &= ~(1 << i);
if(memcmp(epub->enodes[i]->sta->addr, addr, ETH_ALEN) == 0)
{
node = epub->enodes[i];
break;
}
}
spin_unlock_bh(&epub->tx_ampdu_lock);
return node;
}
struct esp_node * esp_get_node_by_index(struct esp_pub * epub, u8 index)
{
u32 map;
struct esp_node *node = NULL;
if (epub == NULL)
return NULL;