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path: root/drivers/net/wireless/iwlwifi/iwl-scan.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-scan.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-scan.c116
1 files changed, 56 insertions, 60 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 3c803f6922ef..1ec2b20eb37c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -2,7 +2,7 @@
*
* GPL LICENSE SUMMARY
*
- * Copyright(c) 2008 Intel Corporation. All rights reserved.
+ * Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -46,15 +46,6 @@
#define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3)
#define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2)
-/* For faster active scanning, scan will move to the next channel if fewer than
- * PLCP_QUIET_THRESH packets are heard on this channel within
- * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
- * time if it's a quiet channel (nothing responded to our probe, and there's
- * no other traffic).
- * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
-#define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
-#define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(10) /* msec */
-
/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
* Must be set longer than active dwell time.
* For the most reliable scan, set > AP beacon interval (typically 100msec). */
@@ -63,7 +54,6 @@
#define IWL_PASSIVE_DWELL_BASE (100)
#define IWL_CHANNEL_TUNE_TIME 5
-#define IWL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1))))
/**
@@ -80,12 +70,12 @@ int iwl_scan_cancel(struct iwl_priv *priv)
if (test_bit(STATUS_SCANNING, &priv->status)) {
if (!test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
- IWL_DEBUG_SCAN("Queuing scan abort.\n");
+ IWL_DEBUG_SCAN(priv, "Queuing scan abort.\n");
set_bit(STATUS_SCAN_ABORTING, &priv->status);
queue_work(priv->workqueue, &priv->abort_scan);
} else
- IWL_DEBUG_SCAN("Scan abort already in progress.\n");
+ IWL_DEBUG_SCAN(priv, "Scan abort already in progress.\n");
return test_bit(STATUS_SCANNING, &priv->status);
}
@@ -119,7 +109,7 @@ int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
}
EXPORT_SYMBOL(iwl_scan_cancel_timeout);
-static int iwl_send_scan_abort(struct iwl_priv *priv)
+int iwl_send_scan_abort(struct iwl_priv *priv)
{
int ret = 0;
struct iwl_rx_packet *res;
@@ -150,7 +140,7 @@ static int iwl_send_scan_abort(struct iwl_priv *priv)
* can occur if we send the scan abort before we
* the microcode has notified us that a scan is
* completed. */
- IWL_DEBUG_INFO("SCAN_ABORT returned %d.\n", res->u.status);
+ IWL_DEBUG_INFO(priv, "SCAN_ABORT returned %d.\n", res->u.status);
clear_bit(STATUS_SCAN_ABORTING, &priv->status);
clear_bit(STATUS_SCAN_HW, &priv->status);
}
@@ -160,7 +150,7 @@ static int iwl_send_scan_abort(struct iwl_priv *priv)
return ret;
}
-
+EXPORT_SYMBOL(iwl_send_scan_abort);
/* Service response to REPLY_SCAN_CMD (0x80) */
static void iwl_rx_reply_scan(struct iwl_priv *priv,
@@ -171,7 +161,7 @@ static void iwl_rx_reply_scan(struct iwl_priv *priv,
struct iwl_scanreq_notification *notif =
(struct iwl_scanreq_notification *)pkt->u.raw;
- IWL_DEBUG_RX("Scan request status = 0x%x\n", notif->status);
+ IWL_DEBUG_RX(priv, "Scan request status = 0x%x\n", notif->status);
#endif
}
@@ -183,7 +173,7 @@ static void iwl_rx_scan_start_notif(struct iwl_priv *priv,
struct iwl_scanstart_notification *notif =
(struct iwl_scanstart_notification *)pkt->u.raw;
priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
- IWL_DEBUG_SCAN("Scan start: "
+ IWL_DEBUG_SCAN(priv, "Scan start: "
"%d [802.11%s] "
"(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
notif->channel,
@@ -202,7 +192,7 @@ static void iwl_rx_scan_results_notif(struct iwl_priv *priv,
struct iwl_scanresults_notification *notif =
(struct iwl_scanresults_notification *)pkt->u.raw;
- IWL_DEBUG_SCAN("Scan ch.res: "
+ IWL_DEBUG_SCAN(priv, "Scan ch.res: "
"%d [802.11%s] "
"(TSF: 0x%08X:%08X) - %d "
"elapsed=%lu usec (%dms since last)\n",
@@ -228,7 +218,7 @@ static void iwl_rx_scan_complete_notif(struct iwl_priv *priv,
struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
struct iwl_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
- IWL_DEBUG_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
+ IWL_DEBUG_SCAN(priv, "Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
scan_notif->scanned_channels,
scan_notif->tsf_low,
scan_notif->tsf_high, scan_notif->status);
@@ -240,7 +230,7 @@ static void iwl_rx_scan_complete_notif(struct iwl_priv *priv,
/* The scan completion notification came in, so kill that timer... */
cancel_delayed_work(&priv->scan_check);
- IWL_DEBUG_INFO("Scan pass on %sGHz took %dms\n",
+ IWL_DEBUG_INFO(priv, "Scan pass on %sGHz took %dms\n",
(priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) ?
"2.4" : "5.2",
jiffies_to_msecs(elapsed_jiffies
@@ -258,7 +248,7 @@ static void iwl_rx_scan_complete_notif(struct iwl_priv *priv,
* then we reset the scan state machine and terminate,
* re-queuing another scan if one has been requested */
if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
- IWL_DEBUG_INFO("Aborted scan completed.\n");
+ IWL_DEBUG_INFO(priv, "Aborted scan completed.\n");
clear_bit(STATUS_SCAN_ABORTING, &priv->status);
} else {
/* If there are more bands on this scan pass reschedule */
@@ -268,11 +258,11 @@ static void iwl_rx_scan_complete_notif(struct iwl_priv *priv,
priv->last_scan_jiffies = jiffies;
priv->next_scan_jiffies = 0;
- IWL_DEBUG_INFO("Setting scan to off\n");
+ IWL_DEBUG_INFO(priv, "Setting scan to off\n");
clear_bit(STATUS_SCANNING, &priv->status);
- IWL_DEBUG_INFO("Scan took %dms\n",
+ IWL_DEBUG_INFO(priv, "Scan took %dms\n",
jiffies_to_msecs(elapsed_jiffies(priv->scan_start, jiffies)));
queue_work(priv->workqueue, &priv->scan_completed);
@@ -296,9 +286,9 @@ void iwl_setup_rx_scan_handlers(struct iwl_priv *priv)
}
EXPORT_SYMBOL(iwl_setup_rx_scan_handlers);
-static inline u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
- enum ieee80211_band band,
- u8 n_probes)
+inline u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
+ enum ieee80211_band band,
+ u8 n_probes)
{
if (band == IEEE80211_BAND_5GHZ)
return IWL_ACTIVE_DWELL_TIME_52 +
@@ -307,9 +297,10 @@ static inline u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
return IWL_ACTIVE_DWELL_TIME_24 +
IWL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1);
}
+EXPORT_SYMBOL(iwl_get_active_dwell_time);
-static u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
- enum ieee80211_band band)
+u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
+ enum ieee80211_band band)
{
u16 passive = (band == IEEE80211_BAND_2GHZ) ?
IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
@@ -327,6 +318,7 @@ static u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
return passive;
}
+EXPORT_SYMBOL(iwl_get_passive_dwell_time);
static int iwl_get_channels_for_scan(struct iwl_priv *priv,
enum ieee80211_band band,
@@ -363,7 +355,7 @@ static int iwl_get_channels_for_scan(struct iwl_priv *priv,
ch_info = iwl_get_channel_info(priv, band, channel);
if (!is_channel_valid(ch_info)) {
- IWL_DEBUG_SCAN("Channel %d is INVALID for this band.\n",
+ IWL_DEBUG_SCAN(priv, "Channel %d is INVALID for this band.\n",
channel);
continue;
}
@@ -392,7 +384,7 @@ static int iwl_get_channels_for_scan(struct iwl_priv *priv,
else
scan_ch->tx_gain = ((1 << 5) | (5 << 3));
- IWL_DEBUG_SCAN("Scanning ch=%d prob=0x%X [%s %d]\n",
+ IWL_DEBUG_SCAN(priv, "Scanning ch=%d prob=0x%X [%s %d]\n",
channel, le32_to_cpu(scan_ch->type),
(scan_ch->type & SCAN_CHANNEL_TYPE_ACTIVE) ?
"ACTIVE" : "PASSIVE",
@@ -403,7 +395,7 @@ static int iwl_get_channels_for_scan(struct iwl_priv *priv,
added++;
}
- IWL_DEBUG_SCAN("total channels to scan %d \n", added);
+ IWL_DEBUG_SCAN(priv, "total channels to scan %d \n", added);
return added;
}
@@ -419,21 +411,21 @@ void iwl_init_scan_params(struct iwl_priv *priv)
int iwl_scan_initiate(struct iwl_priv *priv)
{
if (!iwl_is_ready_rf(priv)) {
- IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
+ IWL_DEBUG_SCAN(priv, "Aborting scan due to not ready.\n");
return -EIO;
}
if (test_bit(STATUS_SCANNING, &priv->status)) {
- IWL_DEBUG_SCAN("Scan already in progress.\n");
+ IWL_DEBUG_SCAN(priv, "Scan already in progress.\n");
return -EAGAIN;
}
if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
- IWL_DEBUG_SCAN("Scan request while abort pending\n");
+ IWL_DEBUG_SCAN(priv, "Scan request while abort pending\n");
return -EAGAIN;
}
- IWL_DEBUG_INFO("Starting scan...\n");
+ IWL_DEBUG_INFO(priv, "Starting scan...\n");
if (priv->cfg->sku & IWL_SKU_G)
priv->scan_bands |= BIT(IEEE80211_BAND_2GHZ);
if (priv->cfg->sku & IWL_SKU_A)
@@ -450,7 +442,7 @@ EXPORT_SYMBOL(iwl_scan_initiate);
#define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
-static void iwl_bg_scan_check(struct work_struct *data)
+void iwl_bg_scan_check(struct work_struct *data)
{
struct iwl_priv *priv =
container_of(data, struct iwl_priv, scan_check.work);
@@ -461,7 +453,7 @@ static void iwl_bg_scan_check(struct work_struct *data)
mutex_lock(&priv->mutex);
if (test_bit(STATUS_SCANNING, &priv->status) ||
test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
- IWL_DEBUG(IWL_DL_SCAN, "Scan completion watchdog resetting "
+ IWL_DEBUG_SCAN(priv, "Scan completion watchdog resetting "
"adapter (%dms)\n",
jiffies_to_msecs(IWL_SCAN_CHECK_WATCHDOG));
@@ -470,6 +462,8 @@ static void iwl_bg_scan_check(struct work_struct *data)
}
mutex_unlock(&priv->mutex);
}
+EXPORT_SYMBOL(iwl_bg_scan_check);
+
/**
* iwl_supported_rate_to_ie - fill in the supported rate in IE field
*
@@ -527,10 +521,10 @@ static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband,
* iwl_fill_probe_req - fill in all required fields and IE for probe request
*/
-static u16 iwl_fill_probe_req(struct iwl_priv *priv,
- enum ieee80211_band band,
- struct ieee80211_mgmt *frame,
- int left)
+u16 iwl_fill_probe_req(struct iwl_priv *priv,
+ enum ieee80211_band band,
+ struct ieee80211_mgmt *frame,
+ int left)
{
int len = 0;
u8 *pos = NULL;
@@ -624,6 +618,7 @@ static u16 iwl_fill_probe_req(struct iwl_priv *priv,
return (u16)len;
}
+EXPORT_SYMBOL(iwl_fill_probe_req);
static void iwl_bg_request_scan(struct work_struct *data)
{
@@ -650,7 +645,7 @@ static void iwl_bg_request_scan(struct work_struct *data)
mutex_lock(&priv->mutex);
if (!iwl_is_ready(priv)) {
- IWL_WARNING("request scan called when driver not ready.\n");
+ IWL_WARN(priv, "request scan called when driver not ready.\n");
goto done;
}
@@ -662,34 +657,34 @@ static void iwl_bg_request_scan(struct work_struct *data)
/* This should never be called or scheduled if there is currently
* a scan active in the hardware. */
if (test_bit(STATUS_SCAN_HW, &priv->status)) {
- IWL_DEBUG_INFO("Multiple concurrent scan requests in parallel. "
+ IWL_DEBUG_INFO(priv, "Multiple concurrent scan requests in parallel. "
"Ignoring second request.\n");
ret = -EIO;
goto done;
}
if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
- IWL_DEBUG_SCAN("Aborting scan due to device shutdown\n");
+ IWL_DEBUG_SCAN(priv, "Aborting scan due to device shutdown\n");
goto done;
}
if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
- IWL_DEBUG_HC("Scan request while abort pending. Queuing.\n");
+ IWL_DEBUG_HC(priv, "Scan request while abort pending. Queuing.\n");
goto done;
}
if (iwl_is_rfkill(priv)) {
- IWL_DEBUG_HC("Aborting scan due to RF Kill activation\n");
+ IWL_DEBUG_HC(priv, "Aborting scan due to RF Kill activation\n");
goto done;
}
if (!test_bit(STATUS_READY, &priv->status)) {
- IWL_DEBUG_HC("Scan request while uninitialized. Queuing.\n");
+ IWL_DEBUG_HC(priv, "Scan request while uninitialized. Queuing.\n");
goto done;
}
if (!priv->scan_bands) {
- IWL_DEBUG_HC("Aborting scan due to no requested bands\n");
+ IWL_DEBUG_HC(priv, "Aborting scan due to no requested bands\n");
goto done;
}
@@ -714,7 +709,7 @@ static void iwl_bg_request_scan(struct work_struct *data)
u32 scan_suspend_time = 100;
unsigned long flags;
- IWL_DEBUG_INFO("Scanning while associated...\n");
+ IWL_DEBUG_INFO(priv, "Scanning while associated...\n");
spin_lock_irqsave(&priv->lock, flags);
interval = priv->beacon_int;
@@ -729,13 +724,13 @@ static void iwl_bg_request_scan(struct work_struct *data)
scan_suspend_time = (extra |
((suspend_time % interval) * 1024));
scan->suspend_time = cpu_to_le32(scan_suspend_time);
- IWL_DEBUG_SCAN("suspend_time 0x%X beacon interval %d\n",
+ IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n",
scan_suspend_time, interval);
}
/* We should add the ability for user to lock to PASSIVE ONLY */
if (priv->one_direct_scan) {
- IWL_DEBUG_SCAN("Start direct scan for '%s'\n",
+ IWL_DEBUG_SCAN(priv, "Start direct scan for '%s'\n",
print_ssid(ssid, priv->direct_ssid,
priv->direct_ssid_len));
scan->direct_scan[0].id = WLAN_EID_SSID;
@@ -744,7 +739,7 @@ static void iwl_bg_request_scan(struct work_struct *data)
priv->direct_ssid, priv->direct_ssid_len);
n_probes++;
} else {
- IWL_DEBUG_SCAN("Start indirect scan.\n");
+ IWL_DEBUG_SCAN(priv, "Start indirect scan.\n");
}
scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
@@ -773,7 +768,7 @@ static void iwl_bg_request_scan(struct work_struct *data)
if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)
rx_chain = 0x6;
} else {
- IWL_WARNING("Invalid scan band count\n");
+ IWL_WARN(priv, "Invalid scan band count\n");
goto done;
}
@@ -806,7 +801,7 @@ static void iwl_bg_request_scan(struct work_struct *data)
(void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
if (scan->channel_count == 0) {
- IWL_DEBUG_SCAN("channel count %d\n", scan->channel_count);
+ IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count);
goto done;
}
@@ -839,7 +834,7 @@ static void iwl_bg_request_scan(struct work_struct *data)
mutex_unlock(&priv->mutex);
}
-static void iwl_bg_abort_scan(struct work_struct *work)
+void iwl_bg_abort_scan(struct work_struct *work)
{
struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
@@ -853,18 +848,19 @@ static void iwl_bg_abort_scan(struct work_struct *work)
mutex_unlock(&priv->mutex);
}
+EXPORT_SYMBOL(iwl_bg_abort_scan);
-static void iwl_bg_scan_completed(struct work_struct *work)
+void iwl_bg_scan_completed(struct work_struct *work)
{
struct iwl_priv *priv =
container_of(work, struct iwl_priv, scan_completed);
- IWL_DEBUG_SCAN("SCAN complete scan\n");
+ IWL_DEBUG_SCAN(priv, "SCAN complete scan\n");
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
- ieee80211_scan_completed(priv->hw);
+ ieee80211_scan_completed(priv->hw, false);
/* Since setting the TXPOWER may have been deferred while
* performing the scan, fire one off */
@@ -872,7 +868,7 @@ static void iwl_bg_scan_completed(struct work_struct *work)
iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
mutex_unlock(&priv->mutex);
}
-
+EXPORT_SYMBOL(iwl_bg_scan_completed);
void iwl_setup_scan_deferred_work(struct iwl_priv *priv)
{
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-12 22:05:39 +0000