This patch finally adds all necessary code to test Ad-hoc & AP mode with p54.
Signed-off-by: Christian Lamparter <chunkeey@xxxxxx>
---
diff -Nurp a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
--- a/drivers/net/wireless/p54/p54common.c 2008-10-18 22:52:36.000000000 +0200
+++ b/drivers/net/wireless/p54/p54common.c 2008-10-18 22:53:58.000000000 +0200
@@ -626,6 +626,12 @@ static void p54_rx_frame_sent(struct iee
__skb_unlink(entry, &priv->tx_queue);
spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
+ if (unlikely(entry == priv->cached_beacon)) {
+ kfree_skb(entry);
+ priv->cached_beacon = NULL;
+ goto out;
+ }
+
/*
* Clear manually, ieee80211_tx_info_clear_status would
* clear the counts too and we need them.
@@ -711,6 +717,35 @@ static void p54_rx_stats(struct ieee8021
mod_timer(&priv->stats_timer, jiffies + 5 * HZ);
}
+static void p54_rx_trap(struct ieee80211_hw *dev, struct sk_buff *skb)
+{
+ struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
+ struct p54_trap *trap = (struct p54_trap *) hdr->data;
+ u16 event = le16_to_cpu(trap->event);
+ u16 freq = le16_to_cpu(trap->frequency);
+
+ switch (event) {
+ case P54_TRAP_BEACON_TX:
+ break;
+ case P54_TRAP_RADAR:
+ printk(KERN_INFO "%s: radar (freq:%d MHz)\n",
+ wiphy_name(dev->wiphy), freq);
+ break;
+ case P54_TRAP_NO_BEACON:
+ break;
+ case P54_TRAP_SCAN:
+ break;
+ case P54_TRAP_TBTT:
+ break;
+ case P54_TRAP_TIMER:
+ break;
+ default:
+ printk(KERN_INFO "%s: received event:%x freq:%d\n",
+ wiphy_name(dev->wiphy), event, freq);
+ break;
+ }
+}
+
static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb)
{
struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
@@ -719,6 +754,9 @@ static int p54_rx_control(struct ieee802
case P54_CONTROL_TYPE_TXDONE:
p54_rx_frame_sent(dev, skb);
break;
+ case P54_CONTROL_TYPE_TRAP:
+ p54_rx_trap(dev, skb);
+ break;
case P54_CONTROL_TYPE_BBP:
break;
case P54_CONTROL_TYPE_STAT_READBACK:
@@ -902,6 +940,64 @@ free:
}
EXPORT_SYMBOL_GPL(p54_read_eeprom);
+static int p54_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
+ bool set)
+{
+ struct p54_common *priv = dev->priv;
+ struct sk_buff *skb;
+ struct p54_tim *tim;
+
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET,
+ sizeof(struct p54_hdr) + sizeof(*tim),
+ P54_CONTROL_TYPE_TIM, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+
+ tim = (struct p54_tim *) skb_put(skb, sizeof(*tim));
+ tim->count = 1;
+ tim->entry[0] = cpu_to_le16(set ? (sta->aid | 0x8000) : sta->aid);
+ priv->tx(dev, skb, 1);
+ return 0;
+}
+
+static int p54_sta_unlock(struct ieee80211_hw *dev, u8 *addr)
+{
+ struct p54_common *priv = dev->priv;
+ struct sk_buff *skb;
+ struct p54_sta_unlock *sta;
+
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET,
+ sizeof(struct p54_hdr) + sizeof(*sta),
+ P54_CONTROL_TYPE_PSM_STA_UNLOCK, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ sta = (struct p54_sta_unlock *)skb_put(skb, sizeof(*sta));
+ memcpy(sta->addr, addr, ETH_ALEN);
+ priv->tx(dev, skb, 1);
+ return 0;
+}
+
+static int p54_tx_cancel(struct ieee80211_hw *dev, struct sk_buff *entry)
+{
+ struct p54_common *priv = dev->priv;
+ struct sk_buff *skb;
+ struct p54_hdr *hdr;
+ struct p54_txcancel *cancel;
+
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET,
+ sizeof(struct p54_hdr) + sizeof(*cancel),
+ P54_CONTROL_TYPE_TXCANCEL, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ hdr = (void *)entry->data;
+ cancel = (struct p54_txcancel *)skb_put(skb, sizeof(*cancel));
+ cancel->req_id = hdr->req_id;
+ priv->tx(dev, skb, 1);
+ return 0;
+}
+
static int p54_tx_fill(struct ieee80211_hw *dev, struct sk_buff *skb,
struct ieee80211_tx_info *info, u8 *queue, size_t *extra_len,
u16 *flags, u16 *aid)
@@ -982,6 +1078,17 @@ static int p54_tx(struct ieee80211_hw *d
padding = (unsigned long)(skb->data - (sizeof(*hdr) + sizeof(*txhdr))) & 3;
len = skb->len;
+ if (info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT) {
+ if (info->control.sta)
+ if (p54_sta_unlock(dev, info->control.sta->addr)) {
+ if (current_queue) {
+ current_queue->len--;
+ current_queue->count--;
+ }
+ return NETDEV_TX_BUSY;
+ }
+ }
+
txhdr = (struct p54_tx_data *) skb_push(skb, sizeof(*txhdr) + padding);
hdr = (struct p54_hdr *) skb_push(skb, sizeof(*hdr));
@@ -1295,6 +1402,88 @@ static int p54_init_stats(struct ieee802
return 0;
}
+static int p54_beacon_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!
+ */
+
+ struct ieee80211_mgmt *mgmt = (void *)skb->data;
+ u8 *pos, *end;
+
+ if (skb->len <= sizeof(mgmt)) {
+ printk(KERN_ERR "p54: beacon is too short!\n");
+ return -EINVAL;
+ }
+
+ pos = (u8 *)mgmt->u.beacon.variable;
+ end = skb->data + skb->len;
+ while (pos < end) {
+ if (pos + 2 + pos[1] > end) {
+ printk(KERN_ERR "p54: parsing beacon failed\n");
+ return -EINVAL;
+ }
+
+ if (pos[0] == WLAN_EID_TIM) {
+ u8 dtim_len = pos[1];
+ u8 dtim_period = pos[3];
+ u8 *next = pos + 2 + dtim_len;
+
+ if (dtim_len < 3) {
+ printk(KERN_ERR "p54: invalid dtim len!\n");
+ return -EINVAL;
+ }
+ memmove(pos, next, end - next);
+
+ if (dtim_len > 3)
+ skb_trim(skb, skb->len - (dtim_len - 3));
+
+ pos = end - (dtim_len + 2);
+
+ /* add the dummy at the end */
+ pos[0] = WLAN_EID_TIM;
+ pos[1] = 3;
+ pos[2] = 0;
+ pos[3] = dtim_period;
+ pos[4] = 0;
+ return 0;
+ }
+ pos += 2 + pos[1];
+ }
+ return 0;
+}
+
+static int p54_beacon_update(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif)
+{
+ struct p54_common *priv = dev->priv;
+ struct sk_buff *beacon;
+ int ret;
+
+ if (priv->cached_beacon) {
+ p54_tx_cancel(dev, priv->cached_beacon);
+ /* wait for the last beacon the be freed */
+ msleep(10);
+ }
+
+ beacon = ieee80211_beacon_get(dev, vif);
+ if (!beacon)
+ return -ENOMEM;
+ ret = p54_beacon_tim(beacon);
+ if (ret)
+ return ret;
+ ret = p54_tx(dev, beacon);
+ if (ret)
+ return ret;
+ priv->cached_beacon = 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;
@@ -1325,9 +1514,14 @@ static void p54_stop(struct ieee80211_hw
del_timer(&priv->stats_timer);
p54_free_skb(dev, priv->cached_stats);
priv->cached_stats = NULL;
+ if (priv->cached_beacon)
+ p54_tx_cancel(dev, priv->cached_beacon);
+
while ((skb = skb_dequeue(&priv->tx_queue)))
kfree_skb(skb);
+ kfree(priv->cached_beacon);
+ priv->cached_beacon = NULL;
priv->stop(dev);
priv->tsf_high32 = priv->tsf_low32 = 0;
priv->mode = NL80211_IFTYPE_UNSPECIFIED;
@@ -1347,6 +1541,8 @@ static int p54_add_interface(struct ieee
switch (conf->type) {
case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_AP:
priv->mode = conf->type;
break;
default:
@@ -1362,6 +1558,12 @@ static int p54_add_interface(struct ieee
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:
+ p54_setup_mac(dev, P54_FILTER_TYPE_IBSS, NULL);
+ break;
default:
BUG(); /* impossible */
break;
@@ -1379,6 +1581,8 @@ static void p54_remove_interface(struct
struct p54_common *priv = dev->priv;
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);
@@ -1406,13 +1610,41 @@ static int p54_config_interface(struct i
struct ieee80211_if_conf *conf)
{
struct p54_common *priv = dev->priv;
+ int ret = 0;
mutex_lock(&priv->conf_mutex);
- p54_setup_mac(dev, P54_FILTER_TYPE_STATION, conf->bssid);
- p54_set_leds(dev, 1, !is_multicast_ether_addr(conf->bssid), 0);
- memcpy(priv->bssid, conf->bssid, ETH_ALEN);
+ switch (priv->mode) {
+ case NL80211_IFTYPE_STATION:
+ ret = p54_setup_mac(dev, P54_FILTER_TYPE_STATION, conf->bssid);
+ if (ret)
+ goto out;
+ ret = p54_set_leds(dev, 1,
+ !is_multicast_ether_addr(conf->bssid), 0);
+ if (ret)
+ goto out;
+ memcpy(priv->bssid, conf->bssid, ETH_ALEN);
+ break;
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_ADHOC:
+ memcpy(priv->bssid, conf->bssid, ETH_ALEN);
+ ret = p54_set_freq(dev, dev->conf.channel->center_freq);
+ if (ret)
+ goto out;
+ ret = p54_setup_mac(dev, priv->mac_mode, priv->bssid);
+ 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;
+ }
+ }
+out:
mutex_unlock(&priv->conf_mutex);
- return 0;
+ return ret;
}
static void p54_configure_filter(struct ieee80211_hw *dev,
@@ -1541,6 +1773,7 @@ static const struct ieee80211_ops p54_op
.stop = p54_stop,
.add_interface = p54_add_interface,
.remove_interface = p54_remove_interface,
+ .set_tim = p54_set_tim,
.config = p54_config,
.config_interface = p54_config_interface,
.bss_info_changed = p54_bss_info_changed,
@@ -1566,7 +1799,9 @@ struct ieee80211_hw *p54_init_common(siz
IEEE80211_HW_SIGNAL_DBM |
IEEE80211_HW_NOISE_DBM;
- dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+ dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION |
+ NL80211_IFTYPE_ADHOC |
+ NL80211_IFTYPE_AP);
dev->channel_change_time = 1000; /* TODO: find actual value */
priv->tx_stats[0].limit = 1; /* Beacon queue */
diff -Nurp a/drivers/net/wireless/p54/p54.h b/drivers/net/wireless/p54/p54.h
--- a/drivers/net/wireless/p54/p54.h 2008-10-18 21:29:10.000000000 +0200
+++ b/drivers/net/wireless/p54/p54.h 2008-10-18 22:53:33.000000000 +0200
@@ -108,6 +108,7 @@ struct p54_common {
struct timer_list stats_timer;
struct completion stats_comp;
struct sk_buff *cached_stats;
+ struct sk_buff *cached_beacon;
int noise;
void *eeprom;
struct completion eeprom_comp;
--
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