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path: root/drivers/net/wireless/iwlwifi/mvm/scan.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/scan.c')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/scan.c72
1 files changed, 51 insertions, 21 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index dff7592e1ff8..0e0007960612 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -5,7 +5,7 @@
*
* GPL LICENSE SUMMARY
*
- * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
+ * Copyright(c) 2012 - 2014 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
@@ -30,7 +30,7 @@
*
* BSD LICENSE
*
- * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
+ * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -70,6 +70,9 @@
#define IWL_PLCP_QUIET_THRESH 1
#define IWL_ACTIVE_QUIET_TIME 10
+#define LONG_OUT_TIME_PERIOD 600
+#define SHORT_OUT_TIME_PERIOD 200
+#define SUSPEND_TIME_PERIOD 100
static inline __le16 iwl_mvm_scan_rx_chain(struct iwl_mvm *mvm)
{
@@ -87,20 +90,22 @@ static inline __le16 iwl_mvm_scan_rx_chain(struct iwl_mvm *mvm)
return cpu_to_le16(rx_chain);
}
-static inline __le32 iwl_mvm_scan_max_out_time(struct ieee80211_vif *vif)
+static inline __le32 iwl_mvm_scan_max_out_time(struct ieee80211_vif *vif,
+ u32 flags, bool is_assoc)
{
- if (vif->bss_conf.assoc)
- return cpu_to_le32(200 * 1024);
- else
+ if (!is_assoc)
return 0;
+ if (flags & NL80211_SCAN_FLAG_LOW_PRIORITY)
+ return cpu_to_le32(ieee80211_tu_to_usec(SHORT_OUT_TIME_PERIOD));
+ return cpu_to_le32(ieee80211_tu_to_usec(LONG_OUT_TIME_PERIOD));
}
-static inline __le32 iwl_mvm_scan_suspend_time(struct ieee80211_vif *vif)
+static inline __le32 iwl_mvm_scan_suspend_time(struct ieee80211_vif *vif,
+ bool is_assoc)
{
- if (!vif->bss_conf.assoc)
+ if (!is_assoc)
return 0;
-
- return cpu_to_le32(ieee80211_tu_to_usec(vif->bss_conf.beacon_int));
+ return cpu_to_le32(ieee80211_tu_to_usec(SUSPEND_TIME_PERIOD));
}
static inline __le32
@@ -192,7 +197,7 @@ static void iwl_mvm_scan_fill_channels(struct iwl_scan_cmd *cmd,
for (i = 0; i < cmd->channel_count; i++) {
chan->channel = cpu_to_le16(req->channels[i]->hw_value);
chan->type = cpu_to_le32(type);
- if (req->channels[i]->flags & IEEE80211_CHAN_PASSIVE_SCAN)
+ if (req->channels[i]->flags & IEEE80211_CHAN_NO_IR)
chan->type &= cpu_to_le32(~SCAN_CHANNEL_TYPE_ACTIVE);
chan->active_dwell = cpu_to_le16(active_dwell);
chan->passive_dwell = cpu_to_le16(passive_dwell);
@@ -262,6 +267,15 @@ static u16 iwl_mvm_fill_probe_req(struct ieee80211_mgmt *frame, const u8 *ta,
return (u16)len;
}
+static void iwl_mvm_vif_assoc_iterator(void *data, u8 *mac,
+ struct ieee80211_vif *vif)
+{
+ bool *is_assoc = data;
+
+ if (vif->bss_conf.assoc)
+ *is_assoc = true;
+}
+
int iwl_mvm_scan_request(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
struct cfg80211_scan_request *req)
@@ -274,6 +288,7 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm,
.dataflags = { IWL_HCMD_DFL_NOCOPY, },
};
struct iwl_scan_cmd *cmd = mvm->scan_cmd;
+ bool is_assoc = false;
int ret;
u32 status;
int ssid_len = 0;
@@ -289,13 +304,17 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm,
memset(cmd, 0, sizeof(struct iwl_scan_cmd) +
mvm->fw->ucode_capa.max_probe_length +
(MAX_NUM_SCAN_CHANNELS * sizeof(struct iwl_scan_channel)));
-
+ ieee80211_iterate_active_interfaces_atomic(mvm->hw,
+ IEEE80211_IFACE_ITER_NORMAL,
+ iwl_mvm_vif_assoc_iterator,
+ &is_assoc);
cmd->channel_count = (u8)req->n_channels;
cmd->quiet_time = cpu_to_le16(IWL_ACTIVE_QUIET_TIME);
cmd->quiet_plcp_th = cpu_to_le16(IWL_PLCP_QUIET_THRESH);
cmd->rxchain_sel_flags = iwl_mvm_scan_rx_chain(mvm);
- cmd->max_out_time = iwl_mvm_scan_max_out_time(vif);
- cmd->suspend_time = iwl_mvm_scan_suspend_time(vif);
+ cmd->max_out_time = iwl_mvm_scan_max_out_time(vif, req->flags,
+ is_assoc);
+ cmd->suspend_time = iwl_mvm_scan_suspend_time(vif, is_assoc);
cmd->rxon_flags = iwl_mvm_scan_rxon_flags(req);
cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP |
MAC_FILTER_IN_BEACON);
@@ -454,13 +473,18 @@ void iwl_mvm_cancel_scan(struct iwl_mvm *mvm)
if (mvm->scan_status == IWL_MVM_SCAN_NONE)
return;
+ if (iwl_mvm_is_radio_killed(mvm)) {
+ ieee80211_scan_completed(mvm->hw, true);
+ mvm->scan_status = IWL_MVM_SCAN_NONE;
+ return;
+ }
+
iwl_init_notification_wait(&mvm->notif_wait, &wait_scan_abort,
scan_abort_notif,
ARRAY_SIZE(scan_abort_notif),
iwl_mvm_scan_abort_notif, NULL);
- ret = iwl_mvm_send_cmd_pdu(mvm, SCAN_ABORT_CMD,
- CMD_SYNC | CMD_SEND_IN_RFKILL, 0, NULL);
+ ret = iwl_mvm_send_cmd_pdu(mvm, SCAN_ABORT_CMD, CMD_SYNC, 0, NULL);
if (ret) {
IWL_ERR(mvm, "Couldn't send SCAN_ABORT_CMD: %d\n", ret);
/* mac80211's state will be cleaned in the fw_restart flow */
@@ -522,6 +546,12 @@ static void iwl_build_scan_cmd(struct iwl_mvm *mvm,
struct cfg80211_sched_scan_request *req,
struct iwl_scan_offload_cmd *scan)
{
+ bool is_assoc = false;
+
+ ieee80211_iterate_active_interfaces_atomic(mvm->hw,
+ IEEE80211_IFACE_ITER_NORMAL,
+ iwl_mvm_vif_assoc_iterator,
+ &is_assoc);
scan->channel_count =
mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels +
mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels;
@@ -529,8 +559,9 @@ static void iwl_build_scan_cmd(struct iwl_mvm *mvm,
scan->quiet_plcp_th = cpu_to_le16(IWL_PLCP_QUIET_THRESH);
scan->good_CRC_th = IWL_GOOD_CRC_TH_DEFAULT;
scan->rx_chain = iwl_mvm_scan_rx_chain(mvm);
- scan->max_out_time = cpu_to_le32(200 * 1024);
- scan->suspend_time = iwl_mvm_scan_suspend_time(vif);
+ scan->max_out_time = iwl_mvm_scan_max_out_time(vif, req->flags,
+ is_assoc);
+ scan->suspend_time = iwl_mvm_scan_suspend_time(vif, is_assoc);
scan->filter_flags |= cpu_to_le32(MAC_FILTER_ACCEPT_GRP |
MAC_FILTER_IN_BEACON);
scan->scan_type = cpu_to_le32(SCAN_TYPE_BACKGROUND);
@@ -642,7 +673,7 @@ static void iwl_build_channel_cfg(struct iwl_mvm *mvm,
channels->iter_count[index] = cpu_to_le16(1);
channels->iter_interval[index] = 0;
- if (!(s_band->channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN))
+ if (!(s_band->channels[i].flags & IEEE80211_CHAN_NO_IR))
channels->type[index] |=
cpu_to_le32(IWL_SCAN_OFFLOAD_CHANNEL_ACTIVE);
@@ -817,11 +848,10 @@ int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
IWL_DEBUG_SCAN(mvm,
"Sending scheduled scan with filtering, filter len %d\n",
req->n_match_sets);
- scan_req.flags |=
- cpu_to_le16(IWL_SCAN_OFFLOAD_FLAG_FILTER_SSID);
} else {
IWL_DEBUG_SCAN(mvm,
"Sending Scheduled scan without filtering\n");
+ scan_req.flags |= cpu_to_le16(IWL_SCAN_OFFLOAD_FLAG_PASS_ALL);
}
return iwl_mvm_send_cmd_pdu(mvm, SCAN_OFFLOAD_REQUEST_CMD, CMD_SYNC,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.