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path: root/drivers/net/wireless/wl12xx/main.c
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Diffstat (limited to 'drivers/net/wireless/wl12xx/main.c')
-rw-r--r--drivers/net/wireless/wl12xx/main.c119
1 files changed, 84 insertions, 35 deletions
diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
index 708ffe304c6d..062247ef3ad2 100644
--- a/drivers/net/wireless/wl12xx/main.c
+++ b/drivers/net/wireless/wl12xx/main.c
@@ -336,7 +336,8 @@ out:
}
static int wl1271_reg_notify(struct wiphy *wiphy,
- struct regulatory_request *request) {
+ struct regulatory_request *request)
+{
struct ieee80211_supported_band *band;
struct ieee80211_channel *ch;
int i;
@@ -569,7 +570,7 @@ static void wl1271_irq_work(struct work_struct *work)
/* Check if any tx blocks were freed */
if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
- !skb_queue_empty(&wl->tx_queue)) {
+ wl->tx_queue_count) {
/*
* In order to avoid starvation of the TX path,
* call the work function directly.
@@ -890,6 +891,7 @@ static int wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
struct ieee80211_sta *sta = txinfo->control.sta;
unsigned long flags;
+ int q;
/*
* peek into the rates configured in the STA entry.
@@ -917,10 +919,12 @@ static int wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
set_bit(WL1271_FLAG_STA_RATES_CHANGED, &wl->flags);
}
#endif
+ wl->tx_queue_count++;
spin_unlock_irqrestore(&wl->wl_lock, flags);
/* queue the packet */
- skb_queue_tail(&wl->tx_queue, skb);
+ q = wl1271_tx_get_queue(skb_get_queue_mapping(skb));
+ skb_queue_tail(&wl->tx_queue[q], skb);
/*
* The chip specific setup must run before the first TX packet -
@@ -934,7 +938,7 @@ static int wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
* The workqueue is slow to process the tx_queue and we need stop
* the queue here, otherwise the queue will get too long.
*/
- if (skb_queue_len(&wl->tx_queue) >= WL1271_TX_QUEUE_HIGH_WATERMARK) {
+ if (wl->tx_queue_count >= WL1271_TX_QUEUE_HIGH_WATERMARK) {
wl1271_debug(DEBUG_TX, "op_tx: stopping queues");
spin_lock_irqsave(&wl->wl_lock, flags);
@@ -1064,6 +1068,16 @@ power_off:
strncpy(wiphy->fw_version, wl->chip.fw_ver,
sizeof(wiphy->fw_version));
+ /*
+ * Now we know if 11a is supported (info from the NVS), so disable
+ * 11a channels if not supported
+ */
+ if (!wl->enable_11a)
+ wiphy->bands[IEEE80211_BAND_5GHZ]->n_channels = 0;
+
+ wl1271_debug(DEBUG_MAC80211, "11a is %ssupported",
+ wl->enable_11a ? "" : "not ");
+
out:
mutex_unlock(&wl->mutex);
@@ -1157,10 +1171,16 @@ static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
struct wl1271 *wl = hw->priv;
mutex_lock(&wl->mutex);
- WARN_ON(wl->vif != vif);
- __wl1271_op_remove_interface(wl);
- mutex_unlock(&wl->mutex);
+ /*
+ * wl->vif can be null here if someone shuts down the interface
+ * just when hardware recovery has been started.
+ */
+ if (wl->vif) {
+ WARN_ON(wl->vif != vif);
+ __wl1271_op_remove_interface(wl);
+ }
+ mutex_unlock(&wl->mutex);
cancel_work_sync(&wl->recovery_work);
}
@@ -1801,21 +1821,21 @@ out:
return ret;
}
-static void wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *beacon)
+static void wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *skb,
+ int offset)
{
- u8 *ptr = beacon->data +
- offsetof(struct ieee80211_mgmt, u.beacon.variable);
+ u8 *ptr = skb->data + offset;
/* find the location of the ssid in the beacon */
- while (ptr < beacon->data + beacon->len) {
+ while (ptr < skb->data + skb->len) {
if (ptr[0] == WLAN_EID_SSID) {
wl->ssid_len = ptr[1];
memcpy(wl->ssid, ptr+2, wl->ssid_len);
return;
}
- ptr += ptr[1];
+ ptr += (ptr[1] + 2);
}
- wl1271_error("ad-hoc beacon template has no SSID!\n");
+ wl1271_error("No SSID in IEs!\n");
}
static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
@@ -1858,8 +1878,11 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
if (beacon) {
struct ieee80211_hdr *hdr;
+ int ieoffset = offsetof(struct ieee80211_mgmt,
+ u.beacon.variable);
+
+ wl1271_ssid_set(wl, beacon, ieoffset);
- wl1271_ssid_set(wl, beacon);
ret = wl1271_cmd_template_set(wl, CMD_TEMPL_BEACON,
beacon->data,
beacon->len, 0,
@@ -1939,6 +1962,7 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
if (changed & BSS_CHANGED_ASSOC) {
if (bss_conf->assoc) {
u32 rates;
+ int ieoffset;
wl->aid = bss_conf->aid;
set_assoc = true;
@@ -1967,13 +1991,13 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
goto out_sleep;
/*
- * The SSID is intentionally set to NULL here - the
- * firmware will set the probe request with a
- * broadcast SSID regardless of what we set in the
- * template.
+ * Get a template for hardware connection maintenance
*/
- ret = wl1271_cmd_build_probe_req(wl, NULL, 0,
- NULL, 0, wl->band);
+ dev_kfree_skb(wl->probereq);
+ wl->probereq = wl1271_cmd_build_ap_probe_req(wl, NULL);
+ ieoffset = offsetof(struct ieee80211_mgmt,
+ u.probe_req.variable);
+ wl1271_ssid_set(wl, wl->probereq, ieoffset);
/* enable the connection monitoring feature */
ret = wl1271_acx_conn_monit_params(wl, true);
@@ -1996,6 +2020,10 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
clear_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
wl->aid = 0;
+ /* free probe-request template */
+ dev_kfree_skb(wl->probereq);
+ wl->probereq = NULL;
+
/* re-enable dynamic ps - just in case */
ieee80211_enable_dyn_ps(wl->vif);
@@ -2085,10 +2113,26 @@ static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
__be32 addr = bss_conf->arp_addr_list[0];
WARN_ON(wl->bss_type != BSS_TYPE_STA_BSS);
- if (bss_conf->arp_addr_cnt == 1 && bss_conf->arp_filter_enabled)
- ret = wl1271_acx_arp_ip_filter(wl, true, addr);
- else
- ret = wl1271_acx_arp_ip_filter(wl, false, addr);
+ if (bss_conf->arp_addr_cnt == 1 &&
+ bss_conf->arp_filter_enabled) {
+ /*
+ * The template should have been configured only upon
+ * association. however, it seems that the correct ip
+ * isn't being set (when sending), so we have to
+ * reconfigure the template upon every ip change.
+ */
+ ret = wl1271_cmd_build_arp_rsp(wl, addr);
+ if (ret < 0) {
+ wl1271_warning("build arp rsp failed: %d", ret);
+ goto out_sleep;
+ }
+
+ ret = wl1271_acx_arp_ip_filter(wl,
+ (ACX_ARP_FILTER_ARP_FILTERING |
+ ACX_ARP_FILTER_AUTO_ARP),
+ addr);
+ } else
+ ret = wl1271_acx_arp_ip_filter(wl, 0, addr);
if (ret < 0)
goto out_sleep;
@@ -2353,14 +2397,6 @@ static struct ieee80211_rate wl1271_rates_5ghz[] = {
/* 5 GHz band channels for WL1273 */
static struct ieee80211_channel wl1271_channels_5ghz[] = {
- { .hw_value = 183, .center_freq = 4915},
- { .hw_value = 184, .center_freq = 4920},
- { .hw_value = 185, .center_freq = 4925},
- { .hw_value = 187, .center_freq = 4935},
- { .hw_value = 188, .center_freq = 4940},
- { .hw_value = 189, .center_freq = 4945},
- { .hw_value = 192, .center_freq = 4960},
- { .hw_value = 196, .center_freq = 4980},
{ .hw_value = 7, .center_freq = 5035},
{ .hw_value = 8, .center_freq = 5040},
{ .hw_value = 9, .center_freq = 5045},
@@ -2581,6 +2617,8 @@ int wl1271_register_hw(struct wl1271 *wl)
wl->mac80211_registered = true;
+ wl1271_debugfs_init(wl);
+
register_netdevice_notifier(&wl1271_dev_notifier);
wl1271_notice("loaded");
@@ -2631,6 +2669,13 @@ int wl1271_init_ieee80211(struct wl1271 *wl)
wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC);
wl->hw->wiphy->max_scan_ssids = 1;
+ /*
+ * Maximum length of elements in scanning probe request templates
+ * should be the maximum length possible for a template, without
+ * the IEEE80211 header of the template
+ */
+ wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_MAX_SIZE -
+ sizeof(struct ieee80211_header);
wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1271_band_2ghz;
wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wl1271_band_5ghz;
@@ -2677,7 +2722,8 @@ struct ieee80211_hw *wl1271_alloc_hw(void)
wl->hw = hw;
wl->plat_dev = plat_dev;
- skb_queue_head_init(&wl->tx_queue);
+ for (i = 0; i < NUM_TX_QUEUES; i++)
+ skb_queue_head_init(&wl->tx_queue[i]);
INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
INIT_DELAYED_WORK(&wl->pspoll_work, wl1271_pspoll_work);
@@ -2715,8 +2761,6 @@ struct ieee80211_hw *wl1271_alloc_hw(void)
/* Apply default driver configuration. */
wl1271_conf_init(wl);
- wl1271_debugfs_init(wl);
-
order = get_order(WL1271_AGGR_BUFFER_SIZE);
wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
if (!wl->aggr_buf) {
@@ -2793,6 +2837,11 @@ int wl1271_free_hw(struct wl1271 *wl)
}
EXPORT_SYMBOL_GPL(wl1271_free_hw);
+u32 wl12xx_debug_level;
+EXPORT_SYMBOL_GPL(wl12xx_debug_level);
+module_param_named(debug_level, wl12xx_debug_level, uint, DEBUG_NONE);
+MODULE_PARM_DESC(debug_level, "wl12xx debugging level");
+
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Luciano Coelho <luciano.coelho@nokia.com>");
MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-28 08:02:30 +0300