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path: root/drivers/net/wireless/iwlwifi/mvm/d3.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/d3.c')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/d3.c57
1 files changed, 35 insertions, 22 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index b9b81e881dd0..f36a7ee0267f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.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
@@ -886,8 +886,7 @@ static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
if (err)
return err;
- size = le32_to_cpu(cmd.resp_pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
- size -= sizeof(cmd.resp_pkt->hdr);
+ size = iwl_rx_packet_payload_len(cmd.resp_pkt);
if (size < sizeof(__le16)) {
err = -EINVAL;
} else {
@@ -1211,15 +1210,10 @@ static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
if (ret)
goto out;
#ifdef CONFIG_IWLWIFI_DEBUGFS
- len = le32_to_cpu(d3_cfg_cmd.resp_pkt->len_n_flags) &
- FH_RSCSR_FRAME_SIZE_MSK;
- if (len >= sizeof(u32) * 2) {
+ len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
+ if (len >= sizeof(u32)) {
mvm->d3_test_pme_ptr =
le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
- } else if (test) {
- /* in test mode we require the pointer */
- ret = -EIO;
- goto out;
}
#endif
iwl_free_resp(&d3_cfg_cmd);
@@ -1231,10 +1225,11 @@ static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
mvm->aux_sta.sta_id = old_aux_sta_id;
mvm_ap_sta->sta_id = old_ap_sta_id;
mvmvif->ap_sta_id = old_ap_sta_id;
- out_noreset:
- kfree(key_data.rsc_tsc);
+
if (ret < 0)
ieee80211_restart_hw(mvm->hw);
+ out_noreset:
+ kfree(key_data.rsc_tsc);
mutex_unlock(&mvm->mutex);
@@ -1537,10 +1532,16 @@ static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
struct iwl_mvm_d3_gtk_iter_data gtkdata = {
.status = status,
};
+ u32 disconnection_reasons =
+ IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
+ IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
if (!status || !vif->bss_conf.bssid)
return false;
+ if (le32_to_cpu(status->wakeup_reasons) & disconnection_reasons)
+ return false;
+
/* find last GTK that we used initially, if any */
gtkdata.find_phase = true;
ieee80211_iter_keys(mvm->hw, vif,
@@ -1665,8 +1666,8 @@ static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
else
status_size = sizeof(struct iwl_wowlan_status_v4);
- len = le32_to_cpu(cmd.resp_pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
- if (len - sizeof(struct iwl_cmd_header) < status_size) {
+ len = iwl_rx_packet_payload_len(cmd.resp_pkt);
+ if (len < status_size) {
IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
goto out_free_resp;
}
@@ -1701,8 +1702,7 @@ static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
status.wake_packet = status_v4->wake_packet;
}
- if (len - sizeof(struct iwl_cmd_header) !=
- status_size + ALIGN(status.wake_packet_bufsize, 4)) {
+ if (len != status_size + ALIGN(status.wake_packet_bufsize, 4)) {
IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
goto out_free_resp;
}
@@ -1805,6 +1805,10 @@ static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
iwl_mvm_read_d3_sram(mvm);
keep = iwl_mvm_query_wakeup_reasons(mvm, vif);
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+ if (keep)
+ mvm->keep_vif = vif;
+#endif
/* has unlocked the mutex, so skip that */
goto out;
@@ -1861,6 +1865,7 @@ static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
return err;
}
mvm->d3_test_active = true;
+ mvm->keep_vif = NULL;
return 0;
}
@@ -1871,10 +1876,14 @@ static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
u32 pme_asserted;
while (true) {
- pme_asserted = iwl_trans_read_mem32(mvm->trans,
- mvm->d3_test_pme_ptr);
- if (pme_asserted)
- break;
+ /* read pme_ptr if available */
+ if (mvm->d3_test_pme_ptr) {
+ pme_asserted = iwl_trans_read_mem32(mvm->trans,
+ mvm->d3_test_pme_ptr);
+ if (pme_asserted)
+ break;
+ }
+
if (msleep_interruptible(100))
break;
}
@@ -1885,6 +1894,10 @@ static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
struct ieee80211_vif *vif)
{
+ /* skip the one we keep connection on */
+ if (_data == vif)
+ return;
+
if (vif->type == NL80211_IFTYPE_STATION)
ieee80211_connection_loss(vif);
}
@@ -1911,7 +1924,7 @@ static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
ieee80211_iterate_active_interfaces_atomic(
mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
- iwl_mvm_d3_test_disconn_work_iter, NULL);
+ iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
ieee80211_wake_queues(mvm->hw);