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bee008b783
Adding the bluetooth full concurrency support for WiFi/BT combo devices. Driver should configure uCode to operate in "full concurrency" mode (via LUT) if both conditions are met: - Antenna Coupling is more than 35dB - WiFi Channel Inhibition Request is hornored by BT Core Currently, there is no antenna coupling information provided by uCode; use module parameter to specified the antenna coupling in dB. When in "full concurrency" mode, driver need to download different LUT to uCode while sending bt configuration command; also, driver need to configure the device operate in 1x1 while in full concurrency mode. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2822 lines
79 KiB
C
2822 lines
79 KiB
C
/******************************************************************************
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
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* USA
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*
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*****************************************************************************/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/etherdevice.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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#include <net/mac80211.h>
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#include "iwl-eeprom.h"
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#include "iwl-dev.h" /* FIXME: remove */
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#include "iwl-debug.h"
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#include "iwl-core.h"
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#include "iwl-io.h"
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#include "iwl-power.h"
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#include "iwl-sta.h"
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#include "iwl-helpers.h"
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MODULE_DESCRIPTION("iwl core");
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MODULE_VERSION(IWLWIFI_VERSION);
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MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
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MODULE_LICENSE("GPL");
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/*
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* set bt_coex_active to true, uCode will do kill/defer
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* every time the priority line is asserted (BT is sending signals on the
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* priority line in the PCIx).
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* set bt_coex_active to false, uCode will ignore the BT activity and
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* perform the normal operation
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*
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* User might experience transmit issue on some platform due to WiFi/BT
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* co-exist problem. The possible behaviors are:
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* Able to scan and finding all the available AP
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* Not able to associate with any AP
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* On those platforms, WiFi communication can be restored by set
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* "bt_coex_active" module parameter to "false"
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*
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* default: bt_coex_active = true (BT_COEX_ENABLE)
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*/
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bool bt_coex_active = true;
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EXPORT_SYMBOL_GPL(bt_coex_active);
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module_param(bt_coex_active, bool, S_IRUGO);
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MODULE_PARM_DESC(bt_coex_active, "enable wifi/bluetooth co-exist");
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#define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \
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[IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
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IWL_RATE_SISO_##s##M_PLCP, \
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IWL_RATE_MIMO2_##s##M_PLCP,\
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IWL_RATE_MIMO3_##s##M_PLCP,\
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IWL_RATE_##r##M_IEEE, \
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IWL_RATE_##ip##M_INDEX, \
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IWL_RATE_##in##M_INDEX, \
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IWL_RATE_##rp##M_INDEX, \
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IWL_RATE_##rn##M_INDEX, \
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IWL_RATE_##pp##M_INDEX, \
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IWL_RATE_##np##M_INDEX }
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u32 iwl_debug_level;
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EXPORT_SYMBOL(iwl_debug_level);
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/*
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* Parameter order:
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* rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate
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*
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* If there isn't a valid next or previous rate then INV is used which
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* maps to IWL_RATE_INVALID
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*
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*/
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const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
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IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */
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IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */
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IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */
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IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */
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IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */
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IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */
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IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */
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IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */
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IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */
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IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */
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IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */
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IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */
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IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */
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/* FIXME:RS: ^^ should be INV (legacy) */
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};
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EXPORT_SYMBOL(iwl_rates);
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int iwl_hwrate_to_plcp_idx(u32 rate_n_flags)
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{
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int idx = 0;
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/* HT rate format */
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if (rate_n_flags & RATE_MCS_HT_MSK) {
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idx = (rate_n_flags & 0xff);
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if (idx >= IWL_RATE_MIMO3_6M_PLCP)
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idx = idx - IWL_RATE_MIMO3_6M_PLCP;
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else if (idx >= IWL_RATE_MIMO2_6M_PLCP)
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idx = idx - IWL_RATE_MIMO2_6M_PLCP;
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idx += IWL_FIRST_OFDM_RATE;
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/* skip 9M not supported in ht*/
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if (idx >= IWL_RATE_9M_INDEX)
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idx += 1;
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if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE))
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return idx;
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/* legacy rate format, search for match in table */
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} else {
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for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++)
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if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF))
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return idx;
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}
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return -1;
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}
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EXPORT_SYMBOL(iwl_hwrate_to_plcp_idx);
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u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid)
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{
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int i;
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u8 ind = ant;
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if (priv->band == IEEE80211_BAND_2GHZ &&
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priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)
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return 0;
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for (i = 0; i < RATE_ANT_NUM - 1; i++) {
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ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0;
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if (valid & BIT(ind))
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return ind;
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}
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return ant;
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}
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EXPORT_SYMBOL(iwl_toggle_tx_ant);
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const u8 iwl_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
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EXPORT_SYMBOL(iwl_bcast_addr);
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/* This function both allocates and initializes hw and priv. */
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struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
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struct ieee80211_ops *hw_ops)
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{
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struct iwl_priv *priv;
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/* mac80211 allocates memory for this device instance, including
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* space for this driver's private structure */
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struct ieee80211_hw *hw =
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ieee80211_alloc_hw(sizeof(struct iwl_priv), hw_ops);
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if (hw == NULL) {
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pr_err("%s: Can not allocate network device\n",
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cfg->name);
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goto out;
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}
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priv = hw->priv;
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priv->hw = hw;
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out:
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return hw;
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}
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EXPORT_SYMBOL(iwl_alloc_all);
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/*
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* QoS support
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*/
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static void iwl_update_qos(struct iwl_priv *priv)
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{
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if (test_bit(STATUS_EXIT_PENDING, &priv->status))
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return;
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priv->qos_data.def_qos_parm.qos_flags = 0;
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if (priv->qos_data.qos_active)
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priv->qos_data.def_qos_parm.qos_flags |=
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QOS_PARAM_FLG_UPDATE_EDCA_MSK;
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if (priv->current_ht_config.is_ht)
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priv->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
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IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
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priv->qos_data.qos_active,
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priv->qos_data.def_qos_parm.qos_flags);
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iwl_send_cmd_pdu_async(priv, REPLY_QOS_PARAM,
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sizeof(struct iwl_qosparam_cmd),
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&priv->qos_data.def_qos_parm, NULL);
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}
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#define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
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#define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
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static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
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struct ieee80211_sta_ht_cap *ht_info,
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enum ieee80211_band band)
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{
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u16 max_bit_rate = 0;
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u8 rx_chains_num = priv->hw_params.rx_chains_num;
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u8 tx_chains_num = priv->hw_params.tx_chains_num;
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ht_info->cap = 0;
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memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
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ht_info->ht_supported = true;
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if (priv->cfg->ht_greenfield_support)
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ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
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ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
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max_bit_rate = MAX_BIT_RATE_20_MHZ;
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if (priv->hw_params.ht40_channel & BIT(band)) {
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ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
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ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
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ht_info->mcs.rx_mask[4] = 0x01;
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max_bit_rate = MAX_BIT_RATE_40_MHZ;
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}
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if (priv->cfg->mod_params->amsdu_size_8K)
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ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU;
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ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
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if (priv->cfg->ampdu_factor)
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ht_info->ampdu_factor = priv->cfg->ampdu_factor;
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ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
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if (priv->cfg->ampdu_density)
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ht_info->ampdu_density = priv->cfg->ampdu_density;
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ht_info->mcs.rx_mask[0] = 0xFF;
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if (rx_chains_num >= 2)
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ht_info->mcs.rx_mask[1] = 0xFF;
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if (rx_chains_num >= 3)
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ht_info->mcs.rx_mask[2] = 0xFF;
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/* Highest supported Rx data rate */
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max_bit_rate *= rx_chains_num;
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WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK);
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ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate);
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/* Tx MCS capabilities */
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ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
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if (tx_chains_num != rx_chains_num) {
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ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
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ht_info->mcs.tx_params |= ((tx_chains_num - 1) <<
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IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
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}
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}
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/**
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* iwlcore_init_geos - Initialize mac80211's geo/channel info based from eeprom
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*/
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int iwlcore_init_geos(struct iwl_priv *priv)
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{
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struct iwl_channel_info *ch;
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struct ieee80211_supported_band *sband;
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struct ieee80211_channel *channels;
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struct ieee80211_channel *geo_ch;
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struct ieee80211_rate *rates;
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int i = 0;
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if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
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priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
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IWL_DEBUG_INFO(priv, "Geography modes already initialized.\n");
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set_bit(STATUS_GEO_CONFIGURED, &priv->status);
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return 0;
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}
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channels = kzalloc(sizeof(struct ieee80211_channel) *
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priv->channel_count, GFP_KERNEL);
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if (!channels)
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return -ENOMEM;
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rates = kzalloc((sizeof(struct ieee80211_rate) * IWL_RATE_COUNT_LEGACY),
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GFP_KERNEL);
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if (!rates) {
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kfree(channels);
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return -ENOMEM;
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}
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/* 5.2GHz channels start after the 2.4GHz channels */
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sband = &priv->bands[IEEE80211_BAND_5GHZ];
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sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)];
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/* just OFDM */
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sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
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sband->n_bitrates = IWL_RATE_COUNT_LEGACY - IWL_FIRST_OFDM_RATE;
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if (priv->cfg->sku & IWL_SKU_N)
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iwlcore_init_ht_hw_capab(priv, &sband->ht_cap,
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IEEE80211_BAND_5GHZ);
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sband = &priv->bands[IEEE80211_BAND_2GHZ];
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sband->channels = channels;
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/* OFDM & CCK */
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sband->bitrates = rates;
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sband->n_bitrates = IWL_RATE_COUNT_LEGACY;
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if (priv->cfg->sku & IWL_SKU_N)
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iwlcore_init_ht_hw_capab(priv, &sband->ht_cap,
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IEEE80211_BAND_2GHZ);
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priv->ieee_channels = channels;
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priv->ieee_rates = rates;
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for (i = 0; i < priv->channel_count; i++) {
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ch = &priv->channel_info[i];
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/* FIXME: might be removed if scan is OK */
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if (!is_channel_valid(ch))
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continue;
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if (is_channel_a_band(ch))
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sband = &priv->bands[IEEE80211_BAND_5GHZ];
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else
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sband = &priv->bands[IEEE80211_BAND_2GHZ];
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geo_ch = &sband->channels[sband->n_channels++];
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geo_ch->center_freq =
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ieee80211_channel_to_frequency(ch->channel);
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geo_ch->max_power = ch->max_power_avg;
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geo_ch->max_antenna_gain = 0xff;
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geo_ch->hw_value = ch->channel;
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if (is_channel_valid(ch)) {
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if (!(ch->flags & EEPROM_CHANNEL_IBSS))
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geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
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if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
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geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
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if (ch->flags & EEPROM_CHANNEL_RADAR)
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geo_ch->flags |= IEEE80211_CHAN_RADAR;
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geo_ch->flags |= ch->ht40_extension_channel;
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if (ch->max_power_avg > priv->tx_power_device_lmt)
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priv->tx_power_device_lmt = ch->max_power_avg;
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} else {
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geo_ch->flags |= IEEE80211_CHAN_DISABLED;
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}
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IWL_DEBUG_INFO(priv, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
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ch->channel, geo_ch->center_freq,
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is_channel_a_band(ch) ? "5.2" : "2.4",
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geo_ch->flags & IEEE80211_CHAN_DISABLED ?
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"restricted" : "valid",
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geo_ch->flags);
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}
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if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
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priv->cfg->sku & IWL_SKU_A) {
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IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
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"Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
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priv->pci_dev->device,
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priv->pci_dev->subsystem_device);
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priv->cfg->sku &= ~IWL_SKU_A;
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}
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IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
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priv->bands[IEEE80211_BAND_2GHZ].n_channels,
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priv->bands[IEEE80211_BAND_5GHZ].n_channels);
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set_bit(STATUS_GEO_CONFIGURED, &priv->status);
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return 0;
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}
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EXPORT_SYMBOL(iwlcore_init_geos);
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/*
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* iwlcore_free_geos - undo allocations in iwlcore_init_geos
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*/
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void iwlcore_free_geos(struct iwl_priv *priv)
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{
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kfree(priv->ieee_channels);
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kfree(priv->ieee_rates);
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clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
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}
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EXPORT_SYMBOL(iwlcore_free_geos);
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|
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/*
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* iwlcore_tx_cmd_protection: Set rts/cts. 3945 and 4965 only share this
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* function.
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*/
|
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void iwlcore_tx_cmd_protection(struct iwl_priv *priv,
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struct ieee80211_tx_info *info,
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__le16 fc, __le32 *tx_flags)
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{
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if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
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*tx_flags |= TX_CMD_FLG_RTS_MSK;
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*tx_flags &= ~TX_CMD_FLG_CTS_MSK;
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*tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
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if (!ieee80211_is_mgmt(fc))
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return;
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switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
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case cpu_to_le16(IEEE80211_STYPE_AUTH):
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case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
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case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
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case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
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*tx_flags &= ~TX_CMD_FLG_RTS_MSK;
|
|
*tx_flags |= TX_CMD_FLG_CTS_MSK;
|
|
break;
|
|
}
|
|
} else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
|
|
*tx_flags &= ~TX_CMD_FLG_RTS_MSK;
|
|
*tx_flags |= TX_CMD_FLG_CTS_MSK;
|
|
*tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(iwlcore_tx_cmd_protection);
|
|
|
|
|
|
static bool is_single_rx_stream(struct iwl_priv *priv)
|
|
{
|
|
return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC ||
|
|
priv->current_ht_config.single_chain_sufficient;
|
|
}
|
|
|
|
static u8 iwl_is_channel_extension(struct iwl_priv *priv,
|
|
enum ieee80211_band band,
|
|
u16 channel, u8 extension_chan_offset)
|
|
{
|
|
const struct iwl_channel_info *ch_info;
|
|
|
|
ch_info = iwl_get_channel_info(priv, band, channel);
|
|
if (!is_channel_valid(ch_info))
|
|
return 0;
|
|
|
|
if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
|
|
return !(ch_info->ht40_extension_channel &
|
|
IEEE80211_CHAN_NO_HT40PLUS);
|
|
else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW)
|
|
return !(ch_info->ht40_extension_channel &
|
|
IEEE80211_CHAN_NO_HT40MINUS);
|
|
|
|
return 0;
|
|
}
|
|
|
|
u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
|
|
struct ieee80211_sta_ht_cap *sta_ht_inf)
|
|
{
|
|
struct iwl_ht_config *ht_conf = &priv->current_ht_config;
|
|
|
|
if (!ht_conf->is_ht || !ht_conf->is_40mhz)
|
|
return 0;
|
|
|
|
/* We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40
|
|
* the bit will not set if it is pure 40MHz case
|
|
*/
|
|
if (sta_ht_inf) {
|
|
if (!sta_ht_inf->ht_supported)
|
|
return 0;
|
|
}
|
|
#ifdef CONFIG_IWLWIFI_DEBUGFS
|
|
if (priv->disable_ht40)
|
|
return 0;
|
|
#endif
|
|
return iwl_is_channel_extension(priv, priv->band,
|
|
le16_to_cpu(priv->staging_rxon.channel),
|
|
ht_conf->extension_chan_offset);
|
|
}
|
|
EXPORT_SYMBOL(iwl_is_ht40_tx_allowed);
|
|
|
|
static u16 iwl_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val)
|
|
{
|
|
u16 new_val = 0;
|
|
u16 beacon_factor = 0;
|
|
|
|
beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val;
|
|
new_val = beacon_val / beacon_factor;
|
|
|
|
if (!new_val)
|
|
new_val = max_beacon_val;
|
|
|
|
return new_val;
|
|
}
|
|
|
|
int iwl_send_rxon_timing(struct iwl_priv *priv, struct ieee80211_vif *vif)
|
|
{
|
|
u64 tsf;
|
|
s32 interval_tm, rem;
|
|
struct ieee80211_conf *conf = NULL;
|
|
u16 beacon_int;
|
|
|
|
conf = ieee80211_get_hw_conf(priv->hw);
|
|
|
|
lockdep_assert_held(&priv->mutex);
|
|
|
|
memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
|
|
|
|
priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp);
|
|
priv->rxon_timing.listen_interval = cpu_to_le16(conf->listen_interval);
|
|
|
|
beacon_int = vif->bss_conf.beacon_int;
|
|
|
|
if (vif->type == NL80211_IFTYPE_ADHOC) {
|
|
/* TODO: we need to get atim_window from upper stack
|
|
* for now we set to 0 */
|
|
priv->rxon_timing.atim_window = 0;
|
|
} else {
|
|
priv->rxon_timing.atim_window = 0;
|
|
}
|
|
|
|
beacon_int = iwl_adjust_beacon_interval(beacon_int,
|
|
priv->hw_params.max_beacon_itrvl * TIME_UNIT);
|
|
priv->rxon_timing.beacon_interval = cpu_to_le16(beacon_int);
|
|
|
|
tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */
|
|
interval_tm = beacon_int * TIME_UNIT;
|
|
rem = do_div(tsf, interval_tm);
|
|
priv->rxon_timing.beacon_init_val = cpu_to_le32(interval_tm - rem);
|
|
|
|
IWL_DEBUG_ASSOC(priv,
|
|
"beacon interval %d beacon timer %d beacon tim %d\n",
|
|
le16_to_cpu(priv->rxon_timing.beacon_interval),
|
|
le32_to_cpu(priv->rxon_timing.beacon_init_val),
|
|
le16_to_cpu(priv->rxon_timing.atim_window));
|
|
|
|
return iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
|
|
sizeof(priv->rxon_timing), &priv->rxon_timing);
|
|
}
|
|
EXPORT_SYMBOL(iwl_send_rxon_timing);
|
|
|
|
void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
|
|
{
|
|
struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
|
|
|
|
if (hw_decrypt)
|
|
rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
|
|
else
|
|
rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
|
|
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_rxon_hwcrypto);
|
|
|
|
/**
|
|
* iwl_check_rxon_cmd - validate RXON structure is valid
|
|
*
|
|
* NOTE: This is really only useful during development and can eventually
|
|
* be #ifdef'd out once the driver is stable and folks aren't actively
|
|
* making changes
|
|
*/
|
|
int iwl_check_rxon_cmd(struct iwl_priv *priv)
|
|
{
|
|
int error = 0;
|
|
int counter = 1;
|
|
struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
|
|
|
|
if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
|
|
error |= le32_to_cpu(rxon->flags &
|
|
(RXON_FLG_TGJ_NARROW_BAND_MSK |
|
|
RXON_FLG_RADAR_DETECT_MSK));
|
|
if (error)
|
|
IWL_WARN(priv, "check 24G fields %d | %d\n",
|
|
counter++, error);
|
|
} else {
|
|
error |= (rxon->flags & RXON_FLG_SHORT_SLOT_MSK) ?
|
|
0 : le32_to_cpu(RXON_FLG_SHORT_SLOT_MSK);
|
|
if (error)
|
|
IWL_WARN(priv, "check 52 fields %d | %d\n",
|
|
counter++, error);
|
|
error |= le32_to_cpu(rxon->flags & RXON_FLG_CCK_MSK);
|
|
if (error)
|
|
IWL_WARN(priv, "check 52 CCK %d | %d\n",
|
|
counter++, error);
|
|
}
|
|
error |= (rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1;
|
|
if (error)
|
|
IWL_WARN(priv, "check mac addr %d | %d\n", counter++, error);
|
|
|
|
/* make sure basic rates 6Mbps and 1Mbps are supported */
|
|
error |= (((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0) &&
|
|
((rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0));
|
|
if (error)
|
|
IWL_WARN(priv, "check basic rate %d | %d\n", counter++, error);
|
|
|
|
error |= (le16_to_cpu(rxon->assoc_id) > 2007);
|
|
if (error)
|
|
IWL_WARN(priv, "check assoc id %d | %d\n", counter++, error);
|
|
|
|
error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
|
|
== (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK));
|
|
if (error)
|
|
IWL_WARN(priv, "check CCK and short slot %d | %d\n",
|
|
counter++, error);
|
|
|
|
error |= ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
|
|
== (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK));
|
|
if (error)
|
|
IWL_WARN(priv, "check CCK & auto detect %d | %d\n",
|
|
counter++, error);
|
|
|
|
error |= ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
|
|
RXON_FLG_TGG_PROTECT_MSK)) == RXON_FLG_TGG_PROTECT_MSK);
|
|
if (error)
|
|
IWL_WARN(priv, "check TGG and auto detect %d | %d\n",
|
|
counter++, error);
|
|
|
|
if (error)
|
|
IWL_WARN(priv, "Tuning to channel %d\n",
|
|
le16_to_cpu(rxon->channel));
|
|
|
|
if (error) {
|
|
IWL_ERR(priv, "Not a valid iwl_rxon_assoc_cmd field values\n");
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_check_rxon_cmd);
|
|
|
|
/**
|
|
* iwl_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
|
|
* @priv: staging_rxon is compared to active_rxon
|
|
*
|
|
* If the RXON structure is changing enough to require a new tune,
|
|
* or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
|
|
* a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
|
|
*/
|
|
int iwl_full_rxon_required(struct iwl_priv *priv)
|
|
{
|
|
|
|
/* These items are only settable from the full RXON command */
|
|
if (!(iwl_is_associated(priv)) ||
|
|
compare_ether_addr(priv->staging_rxon.bssid_addr,
|
|
priv->active_rxon.bssid_addr) ||
|
|
compare_ether_addr(priv->staging_rxon.node_addr,
|
|
priv->active_rxon.node_addr) ||
|
|
compare_ether_addr(priv->staging_rxon.wlap_bssid_addr,
|
|
priv->active_rxon.wlap_bssid_addr) ||
|
|
(priv->staging_rxon.dev_type != priv->active_rxon.dev_type) ||
|
|
(priv->staging_rxon.channel != priv->active_rxon.channel) ||
|
|
(priv->staging_rxon.air_propagation !=
|
|
priv->active_rxon.air_propagation) ||
|
|
(priv->staging_rxon.ofdm_ht_single_stream_basic_rates !=
|
|
priv->active_rxon.ofdm_ht_single_stream_basic_rates) ||
|
|
(priv->staging_rxon.ofdm_ht_dual_stream_basic_rates !=
|
|
priv->active_rxon.ofdm_ht_dual_stream_basic_rates) ||
|
|
(priv->staging_rxon.ofdm_ht_triple_stream_basic_rates !=
|
|
priv->active_rxon.ofdm_ht_triple_stream_basic_rates) ||
|
|
(priv->staging_rxon.assoc_id != priv->active_rxon.assoc_id))
|
|
return 1;
|
|
|
|
/* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
|
|
* be updated with the RXON_ASSOC command -- however only some
|
|
* flag transitions are allowed using RXON_ASSOC */
|
|
|
|
/* Check if we are not switching bands */
|
|
if ((priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) !=
|
|
(priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK))
|
|
return 1;
|
|
|
|
/* Check if we are switching association toggle */
|
|
if ((priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) !=
|
|
(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_full_rxon_required);
|
|
|
|
u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv)
|
|
{
|
|
/*
|
|
* Assign the lowest rate -- should really get this from
|
|
* the beacon skb from mac80211.
|
|
*/
|
|
if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK)
|
|
return IWL_RATE_1M_PLCP;
|
|
else
|
|
return IWL_RATE_6M_PLCP;
|
|
}
|
|
EXPORT_SYMBOL(iwl_rate_get_lowest_plcp);
|
|
|
|
void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf)
|
|
{
|
|
struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
|
|
|
|
if (!ht_conf->is_ht) {
|
|
rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK |
|
|
RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK |
|
|
RXON_FLG_HT40_PROT_MSK |
|
|
RXON_FLG_HT_PROT_MSK);
|
|
return;
|
|
}
|
|
|
|
/* FIXME: if the definition of ht_protection changed, the "translation"
|
|
* will be needed for rxon->flags
|
|
*/
|
|
rxon->flags |= cpu_to_le32(ht_conf->ht_protection << RXON_FLG_HT_OPERATING_MODE_POS);
|
|
|
|
/* Set up channel bandwidth:
|
|
* 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */
|
|
/* clear the HT channel mode before set the mode */
|
|
rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK |
|
|
RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
|
|
if (iwl_is_ht40_tx_allowed(priv, NULL)) {
|
|
/* pure ht40 */
|
|
if (ht_conf->ht_protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) {
|
|
rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40;
|
|
/* Note: control channel is opposite of extension channel */
|
|
switch (ht_conf->extension_chan_offset) {
|
|
case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
|
|
rxon->flags &= ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
|
|
break;
|
|
case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
|
|
rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
|
|
break;
|
|
}
|
|
} else {
|
|
/* Note: control channel is opposite of extension channel */
|
|
switch (ht_conf->extension_chan_offset) {
|
|
case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
|
|
rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
|
|
rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED;
|
|
break;
|
|
case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
|
|
rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
|
|
rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED;
|
|
break;
|
|
case IEEE80211_HT_PARAM_CHA_SEC_NONE:
|
|
default:
|
|
/* channel location only valid if in Mixed mode */
|
|
IWL_ERR(priv, "invalid extension channel offset\n");
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY;
|
|
}
|
|
|
|
if (priv->cfg->ops->hcmd->set_rxon_chain)
|
|
priv->cfg->ops->hcmd->set_rxon_chain(priv);
|
|
|
|
IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X "
|
|
"extension channel offset 0x%x\n",
|
|
le32_to_cpu(rxon->flags), ht_conf->ht_protection,
|
|
ht_conf->extension_chan_offset);
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_rxon_ht);
|
|
|
|
#define IWL_NUM_RX_CHAINS_MULTIPLE 3
|
|
#define IWL_NUM_RX_CHAINS_SINGLE 2
|
|
#define IWL_NUM_IDLE_CHAINS_DUAL 2
|
|
#define IWL_NUM_IDLE_CHAINS_SINGLE 1
|
|
|
|
/*
|
|
* Determine how many receiver/antenna chains to use.
|
|
*
|
|
* More provides better reception via diversity. Fewer saves power
|
|
* at the expense of throughput, but only when not in powersave to
|
|
* start with.
|
|
*
|
|
* MIMO (dual stream) requires at least 2, but works better with 3.
|
|
* This does not determine *which* chains to use, just how many.
|
|
*/
|
|
static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
|
|
{
|
|
if (priv->cfg->advanced_bt_coexist && priv->bt_full_concurrent) {
|
|
/* operated as 1x1 in full concurrency mode */
|
|
return IWL_NUM_RX_CHAINS_SINGLE;
|
|
}
|
|
/* # of Rx chains to use when expecting MIMO. */
|
|
if (is_single_rx_stream(priv))
|
|
return IWL_NUM_RX_CHAINS_SINGLE;
|
|
else
|
|
return IWL_NUM_RX_CHAINS_MULTIPLE;
|
|
}
|
|
|
|
/*
|
|
* When we are in power saving mode, unless device support spatial
|
|
* multiplexing power save, use the active count for rx chain count.
|
|
*/
|
|
static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
|
|
{
|
|
/* # Rx chains when idling, depending on SMPS mode */
|
|
switch (priv->current_ht_config.smps) {
|
|
case IEEE80211_SMPS_STATIC:
|
|
case IEEE80211_SMPS_DYNAMIC:
|
|
return IWL_NUM_IDLE_CHAINS_SINGLE;
|
|
case IEEE80211_SMPS_OFF:
|
|
return active_cnt;
|
|
default:
|
|
WARN(1, "invalid SMPS mode %d",
|
|
priv->current_ht_config.smps);
|
|
return active_cnt;
|
|
}
|
|
}
|
|
|
|
/* up to 4 chains */
|
|
static u8 iwl_count_chain_bitmap(u32 chain_bitmap)
|
|
{
|
|
u8 res;
|
|
res = (chain_bitmap & BIT(0)) >> 0;
|
|
res += (chain_bitmap & BIT(1)) >> 1;
|
|
res += (chain_bitmap & BIT(2)) >> 2;
|
|
res += (chain_bitmap & BIT(3)) >> 3;
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
|
|
*
|
|
* Selects how many and which Rx receivers/antennas/chains to use.
|
|
* This should not be used for scan command ... it puts data in wrong place.
|
|
*/
|
|
void iwl_set_rxon_chain(struct iwl_priv *priv)
|
|
{
|
|
bool is_single = is_single_rx_stream(priv);
|
|
bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
|
|
u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt;
|
|
u32 active_chains;
|
|
u16 rx_chain;
|
|
|
|
/* Tell uCode which antennas are actually connected.
|
|
* Before first association, we assume all antennas are connected.
|
|
* Just after first association, iwl_chain_noise_calibration()
|
|
* checks which antennas actually *are* connected. */
|
|
if (priv->chain_noise_data.active_chains)
|
|
active_chains = priv->chain_noise_data.active_chains;
|
|
else
|
|
active_chains = priv->hw_params.valid_rx_ant;
|
|
|
|
if (priv->cfg->advanced_bt_coexist && priv->bt_full_concurrent) {
|
|
/* operated as 1x1 in full concurrency mode */
|
|
active_chains = first_antenna(active_chains);
|
|
}
|
|
|
|
rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS;
|
|
|
|
/* How many receivers should we use? */
|
|
active_rx_cnt = iwl_get_active_rx_chain_count(priv);
|
|
idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt);
|
|
|
|
|
|
/* correct rx chain count according hw settings
|
|
* and chain noise calibration
|
|
*/
|
|
valid_rx_cnt = iwl_count_chain_bitmap(active_chains);
|
|
if (valid_rx_cnt < active_rx_cnt)
|
|
active_rx_cnt = valid_rx_cnt;
|
|
|
|
if (valid_rx_cnt < idle_rx_cnt)
|
|
idle_rx_cnt = valid_rx_cnt;
|
|
|
|
rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;
|
|
rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS;
|
|
|
|
priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain);
|
|
|
|
if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam)
|
|
priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
|
|
else
|
|
priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
|
|
|
|
IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n",
|
|
priv->staging_rxon.rx_chain,
|
|
active_rx_cnt, idle_rx_cnt);
|
|
|
|
WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 ||
|
|
active_rx_cnt < idle_rx_cnt);
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_rxon_chain);
|
|
|
|
/* Return valid channel */
|
|
u8 iwl_get_single_channel_number(struct iwl_priv *priv,
|
|
enum ieee80211_band band)
|
|
{
|
|
const struct iwl_channel_info *ch_info;
|
|
int i;
|
|
u8 channel = 0;
|
|
|
|
/* only scan single channel, good enough to reset the RF */
|
|
/* pick the first valid not in-use channel */
|
|
if (band == IEEE80211_BAND_5GHZ) {
|
|
for (i = 14; i < priv->channel_count; i++) {
|
|
if (priv->channel_info[i].channel !=
|
|
le16_to_cpu(priv->staging_rxon.channel)) {
|
|
channel = priv->channel_info[i].channel;
|
|
ch_info = iwl_get_channel_info(priv,
|
|
band, channel);
|
|
if (is_channel_valid(ch_info))
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
for (i = 0; i < 14; i++) {
|
|
if (priv->channel_info[i].channel !=
|
|
le16_to_cpu(priv->staging_rxon.channel)) {
|
|
channel =
|
|
priv->channel_info[i].channel;
|
|
ch_info = iwl_get_channel_info(priv,
|
|
band, channel);
|
|
if (is_channel_valid(ch_info))
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return channel;
|
|
}
|
|
EXPORT_SYMBOL(iwl_get_single_channel_number);
|
|
|
|
/**
|
|
* iwl_set_rxon_channel - Set the band and channel values in staging RXON
|
|
* @ch: requested channel as a pointer to struct ieee80211_channel
|
|
|
|
* In addition to setting the staging RXON, priv->band is also set.
|
|
*
|
|
* NOTE: Does not commit to the hardware; it sets appropriate bit fields
|
|
* in the staging RXON flag structure based on the ch->band
|
|
*/
|
|
int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch)
|
|
{
|
|
enum ieee80211_band band = ch->band;
|
|
u16 channel = ch->hw_value;
|
|
|
|
if ((le16_to_cpu(priv->staging_rxon.channel) == channel) &&
|
|
(priv->band == band))
|
|
return 0;
|
|
|
|
priv->staging_rxon.channel = cpu_to_le16(channel);
|
|
if (band == IEEE80211_BAND_5GHZ)
|
|
priv->staging_rxon.flags &= ~RXON_FLG_BAND_24G_MSK;
|
|
else
|
|
priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
|
|
|
|
priv->band = band;
|
|
|
|
IWL_DEBUG_INFO(priv, "Staging channel set to %d [%d]\n", channel, band);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_rxon_channel);
|
|
|
|
void iwl_set_flags_for_band(struct iwl_priv *priv,
|
|
enum ieee80211_band band,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
if (band == IEEE80211_BAND_5GHZ) {
|
|
priv->staging_rxon.flags &=
|
|
~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
|
|
| RXON_FLG_CCK_MSK);
|
|
priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
|
|
} else {
|
|
/* Copied from iwl_post_associate() */
|
|
if (vif && vif->bss_conf.use_short_slot)
|
|
priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
|
|
else
|
|
priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
|
|
|
|
priv->staging_rxon.flags |= RXON_FLG_BAND_24G_MSK;
|
|
priv->staging_rxon.flags |= RXON_FLG_AUTO_DETECT_MSK;
|
|
priv->staging_rxon.flags &= ~RXON_FLG_CCK_MSK;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_flags_for_band);
|
|
|
|
/*
|
|
* initialize rxon structure with default values from eeprom
|
|
*/
|
|
void iwl_connection_init_rx_config(struct iwl_priv *priv,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
const struct iwl_channel_info *ch_info;
|
|
enum nl80211_iftype type = NL80211_IFTYPE_STATION;
|
|
|
|
if (vif)
|
|
type = vif->type;
|
|
|
|
memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
|
|
|
|
switch (type) {
|
|
case NL80211_IFTYPE_AP:
|
|
priv->staging_rxon.dev_type = RXON_DEV_TYPE_AP;
|
|
break;
|
|
|
|
case NL80211_IFTYPE_STATION:
|
|
priv->staging_rxon.dev_type = RXON_DEV_TYPE_ESS;
|
|
priv->staging_rxon.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
|
|
break;
|
|
|
|
case NL80211_IFTYPE_ADHOC:
|
|
priv->staging_rxon.dev_type = RXON_DEV_TYPE_IBSS;
|
|
priv->staging_rxon.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
|
|
priv->staging_rxon.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
|
|
RXON_FILTER_ACCEPT_GRP_MSK;
|
|
break;
|
|
|
|
default:
|
|
IWL_ERR(priv, "Unsupported interface type %d\n", type);
|
|
break;
|
|
}
|
|
|
|
#if 0
|
|
/* TODO: Figure out when short_preamble would be set and cache from
|
|
* that */
|
|
if (!hw_to_local(priv->hw)->short_preamble)
|
|
priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
|
|
else
|
|
priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
|
|
#endif
|
|
|
|
ch_info = iwl_get_channel_info(priv, priv->band,
|
|
le16_to_cpu(priv->active_rxon.channel));
|
|
|
|
if (!ch_info)
|
|
ch_info = &priv->channel_info[0];
|
|
|
|
priv->staging_rxon.channel = cpu_to_le16(ch_info->channel);
|
|
priv->band = ch_info->band;
|
|
|
|
iwl_set_flags_for_band(priv, priv->band, vif);
|
|
|
|
priv->staging_rxon.ofdm_basic_rates =
|
|
(IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
|
|
priv->staging_rxon.cck_basic_rates =
|
|
(IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
|
|
|
|
/* clear both MIX and PURE40 mode flag */
|
|
priv->staging_rxon.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED |
|
|
RXON_FLG_CHANNEL_MODE_PURE_40);
|
|
|
|
if (vif)
|
|
memcpy(priv->staging_rxon.node_addr, vif->addr, ETH_ALEN);
|
|
|
|
priv->staging_rxon.ofdm_ht_single_stream_basic_rates = 0xff;
|
|
priv->staging_rxon.ofdm_ht_dual_stream_basic_rates = 0xff;
|
|
priv->staging_rxon.ofdm_ht_triple_stream_basic_rates = 0xff;
|
|
}
|
|
EXPORT_SYMBOL(iwl_connection_init_rx_config);
|
|
|
|
void iwl_set_rate(struct iwl_priv *priv)
|
|
{
|
|
const struct ieee80211_supported_band *hw = NULL;
|
|
struct ieee80211_rate *rate;
|
|
int i;
|
|
|
|
hw = iwl_get_hw_mode(priv, priv->band);
|
|
if (!hw) {
|
|
IWL_ERR(priv, "Failed to set rate: unable to get hw mode\n");
|
|
return;
|
|
}
|
|
|
|
priv->active_rate = 0;
|
|
|
|
for (i = 0; i < hw->n_bitrates; i++) {
|
|
rate = &(hw->bitrates[i]);
|
|
if (rate->hw_value < IWL_RATE_COUNT_LEGACY)
|
|
priv->active_rate |= (1 << rate->hw_value);
|
|
}
|
|
|
|
IWL_DEBUG_RATE(priv, "Set active_rate = %0x\n", priv->active_rate);
|
|
|
|
priv->staging_rxon.cck_basic_rates =
|
|
(IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
|
|
|
|
priv->staging_rxon.ofdm_basic_rates =
|
|
(IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_rate);
|
|
|
|
void iwl_chswitch_done(struct iwl_priv *priv, bool is_success)
|
|
{
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
|
return;
|
|
|
|
if (priv->switch_rxon.switch_in_progress) {
|
|
ieee80211_chswitch_done(priv->vif, is_success);
|
|
mutex_lock(&priv->mutex);
|
|
priv->switch_rxon.switch_in_progress = false;
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(iwl_chswitch_done);
|
|
|
|
void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
|
|
{
|
|
struct iwl_rx_packet *pkt = rxb_addr(rxb);
|
|
struct iwl_rxon_cmd *rxon = (void *)&priv->active_rxon;
|
|
struct iwl_csa_notification *csa = &(pkt->u.csa_notif);
|
|
|
|
if (priv->switch_rxon.switch_in_progress) {
|
|
if (!le32_to_cpu(csa->status) &&
|
|
(csa->channel == priv->switch_rxon.channel)) {
|
|
rxon->channel = csa->channel;
|
|
priv->staging_rxon.channel = csa->channel;
|
|
IWL_DEBUG_11H(priv, "CSA notif: channel %d\n",
|
|
le16_to_cpu(csa->channel));
|
|
iwl_chswitch_done(priv, true);
|
|
} else {
|
|
IWL_ERR(priv, "CSA notif (fail) : channel %d\n",
|
|
le16_to_cpu(csa->channel));
|
|
iwl_chswitch_done(priv, false);
|
|
}
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(iwl_rx_csa);
|
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
void iwl_print_rx_config_cmd(struct iwl_priv *priv)
|
|
{
|
|
struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
|
|
|
|
IWL_DEBUG_RADIO(priv, "RX CONFIG:\n");
|
|
iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
|
|
IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
|
|
IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
|
|
IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n",
|
|
le32_to_cpu(rxon->filter_flags));
|
|
IWL_DEBUG_RADIO(priv, "u8 dev_type: 0x%x\n", rxon->dev_type);
|
|
IWL_DEBUG_RADIO(priv, "u8 ofdm_basic_rates: 0x%02x\n",
|
|
rxon->ofdm_basic_rates);
|
|
IWL_DEBUG_RADIO(priv, "u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
|
|
IWL_DEBUG_RADIO(priv, "u8[6] node_addr: %pM\n", rxon->node_addr);
|
|
IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr);
|
|
IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
|
|
}
|
|
EXPORT_SYMBOL(iwl_print_rx_config_cmd);
|
|
#endif
|
|
/**
|
|
* iwl_irq_handle_error - called for HW or SW error interrupt from card
|
|
*/
|
|
void iwl_irq_handle_error(struct iwl_priv *priv)
|
|
{
|
|
/* Set the FW error flag -- cleared on iwl_down */
|
|
set_bit(STATUS_FW_ERROR, &priv->status);
|
|
|
|
/* Cancel currently queued command. */
|
|
clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
|
|
|
|
IWL_ERR(priv, "Loaded firmware version: %s\n",
|
|
priv->hw->wiphy->fw_version);
|
|
|
|
priv->cfg->ops->lib->dump_nic_error_log(priv);
|
|
if (priv->cfg->ops->lib->dump_csr)
|
|
priv->cfg->ops->lib->dump_csr(priv);
|
|
if (priv->cfg->ops->lib->dump_fh)
|
|
priv->cfg->ops->lib->dump_fh(priv, NULL, false);
|
|
priv->cfg->ops->lib->dump_nic_event_log(priv, false, NULL, false);
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
if (iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS)
|
|
iwl_print_rx_config_cmd(priv);
|
|
#endif
|
|
|
|
wake_up_interruptible(&priv->wait_command_queue);
|
|
|
|
/* Keep the restart process from trying to send host
|
|
* commands by clearing the INIT status bit */
|
|
clear_bit(STATUS_READY, &priv->status);
|
|
|
|
if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
|
|
IWL_DEBUG(priv, IWL_DL_FW_ERRORS,
|
|
"Restarting adapter due to uCode error.\n");
|
|
|
|
if (priv->cfg->mod_params->restart_fw)
|
|
queue_work(priv->workqueue, &priv->restart);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(iwl_irq_handle_error);
|
|
|
|
static int iwl_apm_stop_master(struct iwl_priv *priv)
|
|
{
|
|
int ret = 0;
|
|
|
|
/* stop device's busmaster DMA activity */
|
|
iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
|
|
|
|
ret = iwl_poll_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_MASTER_DISABLED,
|
|
CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
|
|
if (ret)
|
|
IWL_WARN(priv, "Master Disable Timed Out, 100 usec\n");
|
|
|
|
IWL_DEBUG_INFO(priv, "stop master\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
void iwl_apm_stop(struct iwl_priv *priv)
|
|
{
|
|
IWL_DEBUG_INFO(priv, "Stop card, put in low power state\n");
|
|
|
|
/* Stop device's DMA activity */
|
|
iwl_apm_stop_master(priv);
|
|
|
|
/* Reset the entire device */
|
|
iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
|
|
|
|
udelay(10);
|
|
|
|
/*
|
|
* Clear "initialization complete" bit to move adapter from
|
|
* D0A* (powered-up Active) --> D0U* (Uninitialized) state.
|
|
*/
|
|
iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
|
|
}
|
|
EXPORT_SYMBOL(iwl_apm_stop);
|
|
|
|
|
|
/*
|
|
* Start up NIC's basic functionality after it has been reset
|
|
* (e.g. after platform boot, or shutdown via iwl_apm_stop())
|
|
* NOTE: This does not load uCode nor start the embedded processor
|
|
*/
|
|
int iwl_apm_init(struct iwl_priv *priv)
|
|
{
|
|
int ret = 0;
|
|
u16 lctl;
|
|
|
|
IWL_DEBUG_INFO(priv, "Init card's basic functions\n");
|
|
|
|
/*
|
|
* Use "set_bit" below rather than "write", to preserve any hardware
|
|
* bits already set by default after reset.
|
|
*/
|
|
|
|
/* Disable L0S exit timer (platform NMI Work/Around) */
|
|
iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
|
|
CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
|
|
|
|
/*
|
|
* Disable L0s without affecting L1;
|
|
* don't wait for ICH L0s (ICH bug W/A)
|
|
*/
|
|
iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
|
|
CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
|
|
|
|
/* Set FH wait threshold to maximum (HW error during stress W/A) */
|
|
iwl_set_bit(priv, CSR_DBG_HPET_MEM_REG, CSR_DBG_HPET_MEM_REG_VAL);
|
|
|
|
/*
|
|
* Enable HAP INTA (interrupt from management bus) to
|
|
* wake device's PCI Express link L1a -> L0s
|
|
* NOTE: This is no-op for 3945 (non-existant bit)
|
|
*/
|
|
iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
|
|
CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A);
|
|
|
|
/*
|
|
* HW bug W/A for instability in PCIe bus L0->L0S->L1 transition.
|
|
* Check if BIOS (or OS) enabled L1-ASPM on this device.
|
|
* If so (likely), disable L0S, so device moves directly L0->L1;
|
|
* costs negligible amount of power savings.
|
|
* If not (unlikely), enable L0S, so there is at least some
|
|
* power savings, even without L1.
|
|
*/
|
|
if (priv->cfg->set_l0s) {
|
|
lctl = iwl_pcie_link_ctl(priv);
|
|
if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) ==
|
|
PCI_CFG_LINK_CTRL_VAL_L1_EN) {
|
|
/* L1-ASPM enabled; disable(!) L0S */
|
|
iwl_set_bit(priv, CSR_GIO_REG,
|
|
CSR_GIO_REG_VAL_L0S_ENABLED);
|
|
IWL_DEBUG_POWER(priv, "L1 Enabled; Disabling L0S\n");
|
|
} else {
|
|
/* L1-ASPM disabled; enable(!) L0S */
|
|
iwl_clear_bit(priv, CSR_GIO_REG,
|
|
CSR_GIO_REG_VAL_L0S_ENABLED);
|
|
IWL_DEBUG_POWER(priv, "L1 Disabled; Enabling L0S\n");
|
|
}
|
|
}
|
|
|
|
/* Configure analog phase-lock-loop before activating to D0A */
|
|
if (priv->cfg->pll_cfg_val)
|
|
iwl_set_bit(priv, CSR_ANA_PLL_CFG, priv->cfg->pll_cfg_val);
|
|
|
|
/*
|
|
* Set "initialization complete" bit to move adapter from
|
|
* D0U* --> D0A* (powered-up active) state.
|
|
*/
|
|
iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
|
|
|
|
/*
|
|
* Wait for clock stabilization; once stabilized, access to
|
|
* device-internal resources is supported, e.g. iwl_write_prph()
|
|
* and accesses to uCode SRAM.
|
|
*/
|
|
ret = iwl_poll_bit(priv, CSR_GP_CNTRL,
|
|
CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
|
|
CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
|
|
if (ret < 0) {
|
|
IWL_DEBUG_INFO(priv, "Failed to init the card\n");
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Enable DMA and BSM (if used) clocks, wait for them to stabilize.
|
|
* BSM (Boostrap State Machine) is only in 3945 and 4965;
|
|
* later devices (i.e. 5000 and later) have non-volatile SRAM,
|
|
* and don't need BSM to restore data after power-saving sleep.
|
|
*
|
|
* Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits
|
|
* do not disable clocks. This preserves any hardware bits already
|
|
* set by default in "CLK_CTRL_REG" after reset.
|
|
*/
|
|
if (priv->cfg->use_bsm)
|
|
iwl_write_prph(priv, APMG_CLK_EN_REG,
|
|
APMG_CLK_VAL_DMA_CLK_RQT | APMG_CLK_VAL_BSM_CLK_RQT);
|
|
else
|
|
iwl_write_prph(priv, APMG_CLK_EN_REG,
|
|
APMG_CLK_VAL_DMA_CLK_RQT);
|
|
udelay(20);
|
|
|
|
/* Disable L1-Active */
|
|
iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
|
|
APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(iwl_apm_init);
|
|
|
|
|
|
int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
|
|
{
|
|
int ret = 0;
|
|
s8 prev_tx_power = priv->tx_power_user_lmt;
|
|
|
|
if (tx_power < IWLAGN_TX_POWER_TARGET_POWER_MIN) {
|
|
IWL_WARN(priv,
|
|
"Requested user TXPOWER %d below lower limit %d.\n",
|
|
tx_power,
|
|
IWLAGN_TX_POWER_TARGET_POWER_MIN);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (tx_power > priv->tx_power_device_lmt) {
|
|
IWL_WARN(priv,
|
|
"Requested user TXPOWER %d above upper limit %d.\n",
|
|
tx_power, priv->tx_power_device_lmt);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (priv->tx_power_user_lmt != tx_power)
|
|
force = true;
|
|
|
|
/* if nic is not up don't send command */
|
|
if (iwl_is_ready_rf(priv)) {
|
|
priv->tx_power_user_lmt = tx_power;
|
|
if (force && priv->cfg->ops->lib->send_tx_power)
|
|
ret = priv->cfg->ops->lib->send_tx_power(priv);
|
|
else if (!priv->cfg->ops->lib->send_tx_power)
|
|
ret = -EOPNOTSUPP;
|
|
/*
|
|
* if fail to set tx_power, restore the orig. tx power
|
|
*/
|
|
if (ret)
|
|
priv->tx_power_user_lmt = prev_tx_power;
|
|
}
|
|
|
|
/*
|
|
* Even this is an async host command, the command
|
|
* will always report success from uCode
|
|
* So once driver can placing the command into the queue
|
|
* successfully, driver can use priv->tx_power_user_lmt
|
|
* to reflect the current tx power
|
|
*/
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(iwl_set_tx_power);
|
|
|
|
irqreturn_t iwl_isr_legacy(int irq, void *data)
|
|
{
|
|
struct iwl_priv *priv = data;
|
|
u32 inta, inta_mask;
|
|
u32 inta_fh;
|
|
unsigned long flags;
|
|
if (!priv)
|
|
return IRQ_NONE;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
/* Disable (but don't clear!) interrupts here to avoid
|
|
* back-to-back ISRs and sporadic interrupts from our NIC.
|
|
* If we have something to service, the tasklet will re-enable ints.
|
|
* If we *don't* have something, we'll re-enable before leaving here. */
|
|
inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
|
|
iwl_write32(priv, CSR_INT_MASK, 0x00000000);
|
|
|
|
/* Discover which interrupts are active/pending */
|
|
inta = iwl_read32(priv, CSR_INT);
|
|
inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
|
|
|
|
/* Ignore interrupt if there's nothing in NIC to service.
|
|
* This may be due to IRQ shared with another device,
|
|
* or due to sporadic interrupts thrown from our NIC. */
|
|
if (!inta && !inta_fh) {
|
|
IWL_DEBUG_ISR(priv, "Ignore interrupt, inta == 0, inta_fh == 0\n");
|
|
goto none;
|
|
}
|
|
|
|
if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
|
|
/* Hardware disappeared. It might have already raised
|
|
* an interrupt */
|
|
IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta);
|
|
goto unplugged;
|
|
}
|
|
|
|
IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
|
|
inta, inta_mask, inta_fh);
|
|
|
|
inta &= ~CSR_INT_BIT_SCD;
|
|
|
|
/* iwl_irq_tasklet() will service interrupts and re-enable them */
|
|
if (likely(inta || inta_fh))
|
|
tasklet_schedule(&priv->irq_tasklet);
|
|
|
|
unplugged:
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
return IRQ_HANDLED;
|
|
|
|
none:
|
|
/* re-enable interrupts here since we don't have anything to service. */
|
|
/* only Re-enable if diabled by irq */
|
|
if (test_bit(STATUS_INT_ENABLED, &priv->status))
|
|
iwl_enable_interrupts(priv);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
return IRQ_NONE;
|
|
}
|
|
EXPORT_SYMBOL(iwl_isr_legacy);
|
|
|
|
void iwl_send_bt_config(struct iwl_priv *priv)
|
|
{
|
|
struct iwl_bt_cmd bt_cmd = {
|
|
.lead_time = BT_LEAD_TIME_DEF,
|
|
.max_kill = BT_MAX_KILL_DEF,
|
|
.kill_ack_mask = 0,
|
|
.kill_cts_mask = 0,
|
|
};
|
|
|
|
if (!bt_coex_active)
|
|
bt_cmd.flags = BT_COEX_DISABLE;
|
|
else
|
|
bt_cmd.flags = BT_COEX_ENABLE;
|
|
|
|
IWL_DEBUG_INFO(priv, "BT coex %s\n",
|
|
(bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active");
|
|
|
|
if (iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
|
|
sizeof(struct iwl_bt_cmd), &bt_cmd))
|
|
IWL_ERR(priv, "failed to send BT Coex Config\n");
|
|
}
|
|
EXPORT_SYMBOL(iwl_send_bt_config);
|
|
|
|
int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
|
|
{
|
|
struct iwl_statistics_cmd statistics_cmd = {
|
|
.configuration_flags =
|
|
clear ? IWL_STATS_CONF_CLEAR_STATS : 0,
|
|
};
|
|
|
|
if (flags & CMD_ASYNC)
|
|
return iwl_send_cmd_pdu_async(priv, REPLY_STATISTICS_CMD,
|
|
sizeof(struct iwl_statistics_cmd),
|
|
&statistics_cmd, NULL);
|
|
else
|
|
return iwl_send_cmd_pdu(priv, REPLY_STATISTICS_CMD,
|
|
sizeof(struct iwl_statistics_cmd),
|
|
&statistics_cmd);
|
|
}
|
|
EXPORT_SYMBOL(iwl_send_statistics_request);
|
|
|
|
void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
|
|
struct iwl_rx_mem_buffer *rxb)
|
|
{
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
struct iwl_rx_packet *pkt = rxb_addr(rxb);
|
|
struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif);
|
|
IWL_DEBUG_RX(priv, "sleep mode: %d, src: %d\n",
|
|
sleep->pm_sleep_mode, sleep->pm_wakeup_src);
|
|
#endif
|
|
}
|
|
EXPORT_SYMBOL(iwl_rx_pm_sleep_notif);
|
|
|
|
void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
|
|
struct iwl_rx_mem_buffer *rxb)
|
|
{
|
|
struct iwl_rx_packet *pkt = rxb_addr(rxb);
|
|
u32 len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
|
|
IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled "
|
|
"notification for %s:\n", len,
|
|
get_cmd_string(pkt->hdr.cmd));
|
|
iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, len);
|
|
}
|
|
EXPORT_SYMBOL(iwl_rx_pm_debug_statistics_notif);
|
|
|
|
void iwl_rx_reply_error(struct iwl_priv *priv,
|
|
struct iwl_rx_mem_buffer *rxb)
|
|
{
|
|
struct iwl_rx_packet *pkt = rxb_addr(rxb);
|
|
|
|
IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) "
|
|
"seq 0x%04X ser 0x%08X\n",
|
|
le32_to_cpu(pkt->u.err_resp.error_type),
|
|
get_cmd_string(pkt->u.err_resp.cmd_id),
|
|
pkt->u.err_resp.cmd_id,
|
|
le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
|
|
le32_to_cpu(pkt->u.err_resp.error_info));
|
|
}
|
|
EXPORT_SYMBOL(iwl_rx_reply_error);
|
|
|
|
void iwl_clear_isr_stats(struct iwl_priv *priv)
|
|
{
|
|
memset(&priv->isr_stats, 0, sizeof(priv->isr_stats));
|
|
}
|
|
|
|
int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
|
|
const struct ieee80211_tx_queue_params *params)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
unsigned long flags;
|
|
int q;
|
|
|
|
IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
|
if (!iwl_is_ready_rf(priv)) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
|
|
return -EIO;
|
|
}
|
|
|
|
if (queue >= AC_NUM) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue);
|
|
return 0;
|
|
}
|
|
|
|
q = AC_NUM - 1 - queue;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min);
|
|
priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max);
|
|
priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
|
|
priv->qos_data.def_qos_parm.ac[q].edca_txop =
|
|
cpu_to_le16((params->txop * 32));
|
|
|
|
priv->qos_data.def_qos_parm.ac[q].reserved1 = 0;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_mac_conf_tx);
|
|
|
|
int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
|
|
return priv->ibss_manager == IWL_IBSS_MANAGER;
|
|
}
|
|
EXPORT_SYMBOL_GPL(iwl_mac_tx_last_beacon);
|
|
|
|
static void iwl_ht_conf(struct iwl_priv *priv,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct iwl_ht_config *ht_conf = &priv->current_ht_config;
|
|
struct ieee80211_sta *sta;
|
|
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
|
|
|
|
IWL_DEBUG_MAC80211(priv, "enter:\n");
|
|
|
|
if (!ht_conf->is_ht)
|
|
return;
|
|
|
|
ht_conf->ht_protection =
|
|
bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
|
|
ht_conf->non_GF_STA_present =
|
|
!!(bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
|
|
|
|
ht_conf->single_chain_sufficient = false;
|
|
|
|
switch (vif->type) {
|
|
case NL80211_IFTYPE_STATION:
|
|
rcu_read_lock();
|
|
sta = ieee80211_find_sta(vif, bss_conf->bssid);
|
|
if (sta) {
|
|
struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
|
|
int maxstreams;
|
|
|
|
maxstreams = (ht_cap->mcs.tx_params &
|
|
IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK)
|
|
>> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
|
|
maxstreams += 1;
|
|
|
|
if ((ht_cap->mcs.rx_mask[1] == 0) &&
|
|
(ht_cap->mcs.rx_mask[2] == 0))
|
|
ht_conf->single_chain_sufficient = true;
|
|
if (maxstreams <= 1)
|
|
ht_conf->single_chain_sufficient = true;
|
|
} else {
|
|
/*
|
|
* If at all, this can only happen through a race
|
|
* when the AP disconnects us while we're still
|
|
* setting up the connection, in that case mac80211
|
|
* will soon tell us about that.
|
|
*/
|
|
ht_conf->single_chain_sufficient = true;
|
|
}
|
|
rcu_read_unlock();
|
|
break;
|
|
case NL80211_IFTYPE_ADHOC:
|
|
ht_conf->single_chain_sufficient = true;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
}
|
|
|
|
static inline void iwl_set_no_assoc(struct iwl_priv *priv)
|
|
{
|
|
iwl_led_disassociate(priv);
|
|
/*
|
|
* inform the ucode that there is no longer an
|
|
* association and that no more packets should be
|
|
* sent
|
|
*/
|
|
priv->staging_rxon.filter_flags &=
|
|
~RXON_FILTER_ASSOC_MSK;
|
|
priv->staging_rxon.assoc_id = 0;
|
|
iwlcore_commit_rxon(priv);
|
|
}
|
|
|
|
static int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
unsigned long flags;
|
|
__le64 timestamp;
|
|
|
|
IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
|
if (!iwl_is_ready_rf(priv)) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
|
|
return -EIO;
|
|
}
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
if (priv->ibss_beacon)
|
|
dev_kfree_skb(priv->ibss_beacon);
|
|
|
|
priv->ibss_beacon = skb;
|
|
|
|
timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
|
|
priv->timestamp = le64_to_cpu(timestamp);
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
priv->cfg->ops->lib->post_associate(priv, priv->vif);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void iwl_bss_info_changed(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_bss_conf *bss_conf,
|
|
u32 changes)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
int ret;
|
|
|
|
IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes);
|
|
|
|
if (!iwl_is_alive(priv))
|
|
return;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
|
|
if (changes & BSS_CHANGED_QOS) {
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
priv->qos_data.qos_active = bss_conf->qos;
|
|
iwl_update_qos(priv);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_BEACON && vif->type == NL80211_IFTYPE_AP) {
|
|
dev_kfree_skb(priv->ibss_beacon);
|
|
priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_BEACON_INT) {
|
|
/* TODO: in AP mode, do something to make this take effect */
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_BSSID) {
|
|
IWL_DEBUG_MAC80211(priv, "BSSID %pM\n", bss_conf->bssid);
|
|
|
|
/*
|
|
* If there is currently a HW scan going on in the
|
|
* background then we need to cancel it else the RXON
|
|
* below/in post_associate will fail.
|
|
*/
|
|
if (iwl_scan_cancel_timeout(priv, 100)) {
|
|
IWL_WARN(priv, "Aborted scan still in progress after 100ms\n");
|
|
IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n");
|
|
mutex_unlock(&priv->mutex);
|
|
return;
|
|
}
|
|
|
|
/* mac80211 only sets assoc when in STATION mode */
|
|
if (vif->type == NL80211_IFTYPE_ADHOC || bss_conf->assoc) {
|
|
memcpy(priv->staging_rxon.bssid_addr,
|
|
bss_conf->bssid, ETH_ALEN);
|
|
|
|
/* currently needed in a few places */
|
|
memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN);
|
|
} else {
|
|
priv->staging_rxon.filter_flags &=
|
|
~RXON_FILTER_ASSOC_MSK;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* This needs to be after setting the BSSID in case
|
|
* mac80211 decides to do both changes at once because
|
|
* it will invoke post_associate.
|
|
*/
|
|
if (vif->type == NL80211_IFTYPE_ADHOC &&
|
|
changes & BSS_CHANGED_BEACON) {
|
|
struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
|
|
|
|
if (beacon)
|
|
iwl_mac_beacon_update(hw, beacon);
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_ERP_PREAMBLE) {
|
|
IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n",
|
|
bss_conf->use_short_preamble);
|
|
if (bss_conf->use_short_preamble)
|
|
priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
|
|
else
|
|
priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_ERP_CTS_PROT) {
|
|
IWL_DEBUG_MAC80211(priv, "ERP_CTS %d\n", bss_conf->use_cts_prot);
|
|
if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ))
|
|
priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK;
|
|
else
|
|
priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
|
|
if (bss_conf->use_cts_prot)
|
|
priv->staging_rxon.flags |= RXON_FLG_SELF_CTS_EN;
|
|
else
|
|
priv->staging_rxon.flags &= ~RXON_FLG_SELF_CTS_EN;
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_BASIC_RATES) {
|
|
/* XXX use this information
|
|
*
|
|
* To do that, remove code from iwl_set_rate() and put something
|
|
* like this here:
|
|
*
|
|
if (A-band)
|
|
priv->staging_rxon.ofdm_basic_rates =
|
|
bss_conf->basic_rates;
|
|
else
|
|
priv->staging_rxon.ofdm_basic_rates =
|
|
bss_conf->basic_rates >> 4;
|
|
priv->staging_rxon.cck_basic_rates =
|
|
bss_conf->basic_rates & 0xF;
|
|
*/
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_HT) {
|
|
iwl_ht_conf(priv, vif);
|
|
|
|
if (priv->cfg->ops->hcmd->set_rxon_chain)
|
|
priv->cfg->ops->hcmd->set_rxon_chain(priv);
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_ASSOC) {
|
|
IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc);
|
|
if (bss_conf->assoc) {
|
|
priv->timestamp = bss_conf->timestamp;
|
|
|
|
iwl_led_associate(priv);
|
|
|
|
if (!iwl_is_rfkill(priv))
|
|
priv->cfg->ops->lib->post_associate(priv, vif);
|
|
} else
|
|
iwl_set_no_assoc(priv);
|
|
}
|
|
|
|
if (changes && iwl_is_associated(priv) && bss_conf->aid) {
|
|
IWL_DEBUG_MAC80211(priv, "Changes (%#x) while associated\n",
|
|
changes);
|
|
ret = iwl_send_rxon_assoc(priv);
|
|
if (!ret) {
|
|
/* Sync active_rxon with latest change. */
|
|
memcpy((void *)&priv->active_rxon,
|
|
&priv->staging_rxon,
|
|
sizeof(struct iwl_rxon_cmd));
|
|
}
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_BEACON_ENABLED) {
|
|
if (vif->bss_conf.enable_beacon) {
|
|
memcpy(priv->staging_rxon.bssid_addr,
|
|
bss_conf->bssid, ETH_ALEN);
|
|
memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN);
|
|
iwlcore_config_ap(priv, vif);
|
|
} else
|
|
iwl_set_no_assoc(priv);
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_IBSS) {
|
|
ret = priv->cfg->ops->lib->manage_ibss_station(priv, vif,
|
|
bss_conf->ibss_joined);
|
|
if (ret)
|
|
IWL_ERR(priv, "failed to %s IBSS station %pM\n",
|
|
bss_conf->ibss_joined ? "add" : "remove",
|
|
bss_conf->bssid);
|
|
}
|
|
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
}
|
|
EXPORT_SYMBOL(iwl_bss_info_changed);
|
|
|
|
static int iwl_set_mode(struct iwl_priv *priv, struct ieee80211_vif *vif)
|
|
{
|
|
iwl_connection_init_rx_config(priv, vif);
|
|
|
|
if (priv->cfg->ops->hcmd->set_rxon_chain)
|
|
priv->cfg->ops->hcmd->set_rxon_chain(priv);
|
|
|
|
return iwlcore_commit_rxon(priv);
|
|
}
|
|
|
|
int iwl_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
int err = 0;
|
|
|
|
IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n",
|
|
vif->type, vif->addr);
|
|
|
|
mutex_lock(&priv->mutex);
|
|
|
|
if (WARN_ON(!iwl_is_ready_rf(priv))) {
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (priv->vif) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n");
|
|
err = -EOPNOTSUPP;
|
|
goto out;
|
|
}
|
|
|
|
priv->vif = vif;
|
|
priv->iw_mode = vif->type;
|
|
|
|
err = iwl_set_mode(priv, vif);
|
|
if (err)
|
|
goto out_err;
|
|
|
|
if (priv->cfg->advanced_bt_coexist &&
|
|
vif->type == NL80211_IFTYPE_ADHOC) {
|
|
/*
|
|
* pretend to have high BT traffic as long as we
|
|
* are operating in IBSS mode, as this will cause
|
|
* the rate scaling etc. to behave as intended.
|
|
*/
|
|
priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
|
|
}
|
|
|
|
goto out;
|
|
|
|
out_err:
|
|
priv->vif = NULL;
|
|
priv->iw_mode = NL80211_IFTYPE_STATION;
|
|
out:
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(iwl_mac_add_interface);
|
|
|
|
void iwl_mac_remove_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
bool scan_completed = false;
|
|
|
|
IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
|
mutex_lock(&priv->mutex);
|
|
|
|
if (iwl_is_ready_rf(priv)) {
|
|
iwl_scan_cancel_timeout(priv, 100);
|
|
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
|
|
iwlcore_commit_rxon(priv);
|
|
}
|
|
if (priv->vif == vif) {
|
|
priv->vif = NULL;
|
|
if (priv->scan_vif == vif) {
|
|
scan_completed = true;
|
|
priv->scan_vif = NULL;
|
|
priv->scan_request = NULL;
|
|
}
|
|
memset(priv->bssid, 0, ETH_ALEN);
|
|
}
|
|
|
|
/*
|
|
* When removing the IBSS interface, overwrite the
|
|
* BT traffic load with the stored one from the last
|
|
* notification, if any. If this is a device that
|
|
* doesn't implement this, this has no effect since
|
|
* both values are the same and zero.
|
|
*/
|
|
if (vif->type == NL80211_IFTYPE_ADHOC)
|
|
priv->bt_traffic_load = priv->notif_bt_traffic_load;
|
|
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
if (scan_completed)
|
|
ieee80211_scan_completed(priv->hw, true);
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
|
}
|
|
EXPORT_SYMBOL(iwl_mac_remove_interface);
|
|
|
|
/**
|
|
* iwl_mac_config - mac80211 config callback
|
|
*/
|
|
int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
const struct iwl_channel_info *ch_info;
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
struct ieee80211_channel *channel = conf->channel;
|
|
struct iwl_ht_config *ht_conf = &priv->current_ht_config;
|
|
unsigned long flags = 0;
|
|
int ret = 0;
|
|
u16 ch;
|
|
int scan_active = 0;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
|
|
IWL_DEBUG_MAC80211(priv, "enter to channel %d changed 0x%X\n",
|
|
channel->hw_value, changed);
|
|
|
|
if (unlikely(!priv->cfg->mod_params->disable_hw_scan &&
|
|
test_bit(STATUS_SCANNING, &priv->status))) {
|
|
scan_active = 1;
|
|
IWL_DEBUG_MAC80211(priv, "leave - scanning\n");
|
|
}
|
|
|
|
if (changed & (IEEE80211_CONF_CHANGE_SMPS |
|
|
IEEE80211_CONF_CHANGE_CHANNEL)) {
|
|
/* mac80211 uses static for non-HT which is what we want */
|
|
priv->current_ht_config.smps = conf->smps_mode;
|
|
|
|
/*
|
|
* Recalculate chain counts.
|
|
*
|
|
* If monitor mode is enabled then mac80211 will
|
|
* set up the SM PS mode to OFF if an HT channel is
|
|
* configured.
|
|
*/
|
|
if (priv->cfg->ops->hcmd->set_rxon_chain)
|
|
priv->cfg->ops->hcmd->set_rxon_chain(priv);
|
|
}
|
|
|
|
/* during scanning mac80211 will delay channel setting until
|
|
* scan finish with changed = 0
|
|
*/
|
|
if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
|
|
if (scan_active)
|
|
goto set_ch_out;
|
|
|
|
ch = channel->hw_value;
|
|
ch_info = iwl_get_channel_info(priv, channel->band, ch);
|
|
if (!is_channel_valid(ch_info)) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n");
|
|
ret = -EINVAL;
|
|
goto set_ch_out;
|
|
}
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
/* Configure HT40 channels */
|
|
ht_conf->is_ht = conf_is_ht(conf);
|
|
if (ht_conf->is_ht) {
|
|
if (conf_is_ht40_minus(conf)) {
|
|
ht_conf->extension_chan_offset =
|
|
IEEE80211_HT_PARAM_CHA_SEC_BELOW;
|
|
ht_conf->is_40mhz = true;
|
|
} else if (conf_is_ht40_plus(conf)) {
|
|
ht_conf->extension_chan_offset =
|
|
IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
|
|
ht_conf->is_40mhz = true;
|
|
} else {
|
|
ht_conf->extension_chan_offset =
|
|
IEEE80211_HT_PARAM_CHA_SEC_NONE;
|
|
ht_conf->is_40mhz = false;
|
|
}
|
|
} else
|
|
ht_conf->is_40mhz = false;
|
|
/* Default to no protection. Protection mode will later be set
|
|
* from BSS config in iwl_ht_conf */
|
|
ht_conf->ht_protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
|
|
|
|
if ((le16_to_cpu(priv->staging_rxon.channel) != ch))
|
|
priv->staging_rxon.flags = 0;
|
|
|
|
iwl_set_rxon_channel(priv, channel);
|
|
iwl_set_rxon_ht(priv, ht_conf);
|
|
|
|
iwl_set_flags_for_band(priv, channel->band, priv->vif);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
if (priv->cfg->ops->lib->update_bcast_station)
|
|
ret = priv->cfg->ops->lib->update_bcast_station(priv);
|
|
|
|
set_ch_out:
|
|
/* The list of supported rates and rate mask can be different
|
|
* for each band; since the band may have changed, reset
|
|
* the rate mask to what mac80211 lists */
|
|
iwl_set_rate(priv);
|
|
}
|
|
|
|
if (changed & (IEEE80211_CONF_CHANGE_PS |
|
|
IEEE80211_CONF_CHANGE_IDLE)) {
|
|
ret = iwl_power_update_mode(priv, false);
|
|
if (ret)
|
|
IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n");
|
|
}
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_POWER) {
|
|
IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n",
|
|
priv->tx_power_user_lmt, conf->power_level);
|
|
|
|
iwl_set_tx_power(priv, conf->power_level, false);
|
|
}
|
|
|
|
if (!iwl_is_ready(priv)) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
|
|
goto out;
|
|
}
|
|
|
|
if (scan_active)
|
|
goto out;
|
|
|
|
if (memcmp(&priv->active_rxon,
|
|
&priv->staging_rxon, sizeof(priv->staging_rxon)))
|
|
iwlcore_commit_rxon(priv);
|
|
else
|
|
IWL_DEBUG_INFO(priv, "Not re-sending same RXON configuration.\n");
|
|
|
|
|
|
out:
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
mutex_unlock(&priv->mutex);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL(iwl_mac_config);
|
|
|
|
void iwl_mac_reset_tsf(struct ieee80211_hw *hw)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
unsigned long flags;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_config));
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
/* new association get rid of ibss beacon skb */
|
|
if (priv->ibss_beacon)
|
|
dev_kfree_skb(priv->ibss_beacon);
|
|
|
|
priv->ibss_beacon = NULL;
|
|
|
|
priv->timestamp = 0;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
if (!iwl_is_ready_rf(priv)) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
|
|
mutex_unlock(&priv->mutex);
|
|
return;
|
|
}
|
|
|
|
/* we are restarting association process
|
|
* clear RXON_FILTER_ASSOC_MSK bit
|
|
*/
|
|
iwl_scan_cancel_timeout(priv, 100);
|
|
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
|
|
iwlcore_commit_rxon(priv);
|
|
|
|
iwl_set_rate(priv);
|
|
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
}
|
|
EXPORT_SYMBOL(iwl_mac_reset_tsf);
|
|
|
|
int iwl_alloc_txq_mem(struct iwl_priv *priv)
|
|
{
|
|
if (!priv->txq)
|
|
priv->txq = kzalloc(
|
|
sizeof(struct iwl_tx_queue) * priv->cfg->num_of_queues,
|
|
GFP_KERNEL);
|
|
if (!priv->txq) {
|
|
IWL_ERR(priv, "Not enough memory for txq\n");
|
|
return -ENOMEM;
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_alloc_txq_mem);
|
|
|
|
void iwl_free_txq_mem(struct iwl_priv *priv)
|
|
{
|
|
kfree(priv->txq);
|
|
priv->txq = NULL;
|
|
}
|
|
EXPORT_SYMBOL(iwl_free_txq_mem);
|
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUGFS
|
|
|
|
#define IWL_TRAFFIC_DUMP_SIZE (IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES)
|
|
|
|
void iwl_reset_traffic_log(struct iwl_priv *priv)
|
|
{
|
|
priv->tx_traffic_idx = 0;
|
|
priv->rx_traffic_idx = 0;
|
|
if (priv->tx_traffic)
|
|
memset(priv->tx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE);
|
|
if (priv->rx_traffic)
|
|
memset(priv->rx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE);
|
|
}
|
|
|
|
int iwl_alloc_traffic_mem(struct iwl_priv *priv)
|
|
{
|
|
u32 traffic_size = IWL_TRAFFIC_DUMP_SIZE;
|
|
|
|
if (iwl_debug_level & IWL_DL_TX) {
|
|
if (!priv->tx_traffic) {
|
|
priv->tx_traffic =
|
|
kzalloc(traffic_size, GFP_KERNEL);
|
|
if (!priv->tx_traffic)
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
if (iwl_debug_level & IWL_DL_RX) {
|
|
if (!priv->rx_traffic) {
|
|
priv->rx_traffic =
|
|
kzalloc(traffic_size, GFP_KERNEL);
|
|
if (!priv->rx_traffic)
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
iwl_reset_traffic_log(priv);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_alloc_traffic_mem);
|
|
|
|
void iwl_free_traffic_mem(struct iwl_priv *priv)
|
|
{
|
|
kfree(priv->tx_traffic);
|
|
priv->tx_traffic = NULL;
|
|
|
|
kfree(priv->rx_traffic);
|
|
priv->rx_traffic = NULL;
|
|
}
|
|
EXPORT_SYMBOL(iwl_free_traffic_mem);
|
|
|
|
void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
|
|
u16 length, struct ieee80211_hdr *header)
|
|
{
|
|
__le16 fc;
|
|
u16 len;
|
|
|
|
if (likely(!(iwl_debug_level & IWL_DL_TX)))
|
|
return;
|
|
|
|
if (!priv->tx_traffic)
|
|
return;
|
|
|
|
fc = header->frame_control;
|
|
if (ieee80211_is_data(fc)) {
|
|
len = (length > IWL_TRAFFIC_ENTRY_SIZE)
|
|
? IWL_TRAFFIC_ENTRY_SIZE : length;
|
|
memcpy((priv->tx_traffic +
|
|
(priv->tx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)),
|
|
header, len);
|
|
priv->tx_traffic_idx =
|
|
(priv->tx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(iwl_dbg_log_tx_data_frame);
|
|
|
|
void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
|
|
u16 length, struct ieee80211_hdr *header)
|
|
{
|
|
__le16 fc;
|
|
u16 len;
|
|
|
|
if (likely(!(iwl_debug_level & IWL_DL_RX)))
|
|
return;
|
|
|
|
if (!priv->rx_traffic)
|
|
return;
|
|
|
|
fc = header->frame_control;
|
|
if (ieee80211_is_data(fc)) {
|
|
len = (length > IWL_TRAFFIC_ENTRY_SIZE)
|
|
? IWL_TRAFFIC_ENTRY_SIZE : length;
|
|
memcpy((priv->rx_traffic +
|
|
(priv->rx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)),
|
|
header, len);
|
|
priv->rx_traffic_idx =
|
|
(priv->rx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(iwl_dbg_log_rx_data_frame);
|
|
|
|
const char *get_mgmt_string(int cmd)
|
|
{
|
|
switch (cmd) {
|
|
IWL_CMD(MANAGEMENT_ASSOC_REQ);
|
|
IWL_CMD(MANAGEMENT_ASSOC_RESP);
|
|
IWL_CMD(MANAGEMENT_REASSOC_REQ);
|
|
IWL_CMD(MANAGEMENT_REASSOC_RESP);
|
|
IWL_CMD(MANAGEMENT_PROBE_REQ);
|
|
IWL_CMD(MANAGEMENT_PROBE_RESP);
|
|
IWL_CMD(MANAGEMENT_BEACON);
|
|
IWL_CMD(MANAGEMENT_ATIM);
|
|
IWL_CMD(MANAGEMENT_DISASSOC);
|
|
IWL_CMD(MANAGEMENT_AUTH);
|
|
IWL_CMD(MANAGEMENT_DEAUTH);
|
|
IWL_CMD(MANAGEMENT_ACTION);
|
|
default:
|
|
return "UNKNOWN";
|
|
|
|
}
|
|
}
|
|
|
|
const char *get_ctrl_string(int cmd)
|
|
{
|
|
switch (cmd) {
|
|
IWL_CMD(CONTROL_BACK_REQ);
|
|
IWL_CMD(CONTROL_BACK);
|
|
IWL_CMD(CONTROL_PSPOLL);
|
|
IWL_CMD(CONTROL_RTS);
|
|
IWL_CMD(CONTROL_CTS);
|
|
IWL_CMD(CONTROL_ACK);
|
|
IWL_CMD(CONTROL_CFEND);
|
|
IWL_CMD(CONTROL_CFENDACK);
|
|
default:
|
|
return "UNKNOWN";
|
|
|
|
}
|
|
}
|
|
|
|
void iwl_clear_traffic_stats(struct iwl_priv *priv)
|
|
{
|
|
memset(&priv->tx_stats, 0, sizeof(struct traffic_stats));
|
|
memset(&priv->rx_stats, 0, sizeof(struct traffic_stats));
|
|
priv->led_tpt = 0;
|
|
}
|
|
|
|
/*
|
|
* if CONFIG_IWLWIFI_DEBUGFS defined, iwl_update_stats function will
|
|
* record all the MGMT, CTRL and DATA pkt for both TX and Rx pass.
|
|
* Use debugFs to display the rx/rx_statistics
|
|
* if CONFIG_IWLWIFI_DEBUGFS not being defined, then no MGMT and CTRL
|
|
* information will be recorded, but DATA pkt still will be recorded
|
|
* for the reason of iwl_led.c need to control the led blinking based on
|
|
* number of tx and rx data.
|
|
*
|
|
*/
|
|
void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len)
|
|
{
|
|
struct traffic_stats *stats;
|
|
|
|
if (is_tx)
|
|
stats = &priv->tx_stats;
|
|
else
|
|
stats = &priv->rx_stats;
|
|
|
|
if (ieee80211_is_mgmt(fc)) {
|
|
switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
|
|
case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
|
|
stats->mgmt[MANAGEMENT_ASSOC_REQ]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP):
|
|
stats->mgmt[MANAGEMENT_ASSOC_RESP]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
|
|
stats->mgmt[MANAGEMENT_REASSOC_REQ]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP):
|
|
stats->mgmt[MANAGEMENT_REASSOC_RESP]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ):
|
|
stats->mgmt[MANAGEMENT_PROBE_REQ]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
|
|
stats->mgmt[MANAGEMENT_PROBE_RESP]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_BEACON):
|
|
stats->mgmt[MANAGEMENT_BEACON]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_ATIM):
|
|
stats->mgmt[MANAGEMENT_ATIM]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
|
|
stats->mgmt[MANAGEMENT_DISASSOC]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_AUTH):
|
|
stats->mgmt[MANAGEMENT_AUTH]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
|
|
stats->mgmt[MANAGEMENT_DEAUTH]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_ACTION):
|
|
stats->mgmt[MANAGEMENT_ACTION]++;
|
|
break;
|
|
}
|
|
} else if (ieee80211_is_ctl(fc)) {
|
|
switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
|
|
case cpu_to_le16(IEEE80211_STYPE_BACK_REQ):
|
|
stats->ctrl[CONTROL_BACK_REQ]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_BACK):
|
|
stats->ctrl[CONTROL_BACK]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_PSPOLL):
|
|
stats->ctrl[CONTROL_PSPOLL]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_RTS):
|
|
stats->ctrl[CONTROL_RTS]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_CTS):
|
|
stats->ctrl[CONTROL_CTS]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_ACK):
|
|
stats->ctrl[CONTROL_ACK]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_CFEND):
|
|
stats->ctrl[CONTROL_CFEND]++;
|
|
break;
|
|
case cpu_to_le16(IEEE80211_STYPE_CFENDACK):
|
|
stats->ctrl[CONTROL_CFENDACK]++;
|
|
break;
|
|
}
|
|
} else {
|
|
/* data */
|
|
stats->data_cnt++;
|
|
stats->data_bytes += len;
|
|
}
|
|
iwl_leds_background(priv);
|
|
}
|
|
EXPORT_SYMBOL(iwl_update_stats);
|
|
#endif
|
|
|
|
static const char *get_csr_string(int cmd)
|
|
{
|
|
switch (cmd) {
|
|
IWL_CMD(CSR_HW_IF_CONFIG_REG);
|
|
IWL_CMD(CSR_INT_COALESCING);
|
|
IWL_CMD(CSR_INT);
|
|
IWL_CMD(CSR_INT_MASK);
|
|
IWL_CMD(CSR_FH_INT_STATUS);
|
|
IWL_CMD(CSR_GPIO_IN);
|
|
IWL_CMD(CSR_RESET);
|
|
IWL_CMD(CSR_GP_CNTRL);
|
|
IWL_CMD(CSR_HW_REV);
|
|
IWL_CMD(CSR_EEPROM_REG);
|
|
IWL_CMD(CSR_EEPROM_GP);
|
|
IWL_CMD(CSR_OTP_GP_REG);
|
|
IWL_CMD(CSR_GIO_REG);
|
|
IWL_CMD(CSR_GP_UCODE_REG);
|
|
IWL_CMD(CSR_GP_DRIVER_REG);
|
|
IWL_CMD(CSR_UCODE_DRV_GP1);
|
|
IWL_CMD(CSR_UCODE_DRV_GP2);
|
|
IWL_CMD(CSR_LED_REG);
|
|
IWL_CMD(CSR_DRAM_INT_TBL_REG);
|
|
IWL_CMD(CSR_GIO_CHICKEN_BITS);
|
|
IWL_CMD(CSR_ANA_PLL_CFG);
|
|
IWL_CMD(CSR_HW_REV_WA_REG);
|
|
IWL_CMD(CSR_DBG_HPET_MEM_REG);
|
|
default:
|
|
return "UNKNOWN";
|
|
|
|
}
|
|
}
|
|
|
|
void iwl_dump_csr(struct iwl_priv *priv)
|
|
{
|
|
int i;
|
|
u32 csr_tbl[] = {
|
|
CSR_HW_IF_CONFIG_REG,
|
|
CSR_INT_COALESCING,
|
|
CSR_INT,
|
|
CSR_INT_MASK,
|
|
CSR_FH_INT_STATUS,
|
|
CSR_GPIO_IN,
|
|
CSR_RESET,
|
|
CSR_GP_CNTRL,
|
|
CSR_HW_REV,
|
|
CSR_EEPROM_REG,
|
|
CSR_EEPROM_GP,
|
|
CSR_OTP_GP_REG,
|
|
CSR_GIO_REG,
|
|
CSR_GP_UCODE_REG,
|
|
CSR_GP_DRIVER_REG,
|
|
CSR_UCODE_DRV_GP1,
|
|
CSR_UCODE_DRV_GP2,
|
|
CSR_LED_REG,
|
|
CSR_DRAM_INT_TBL_REG,
|
|
CSR_GIO_CHICKEN_BITS,
|
|
CSR_ANA_PLL_CFG,
|
|
CSR_HW_REV_WA_REG,
|
|
CSR_DBG_HPET_MEM_REG
|
|
};
|
|
IWL_ERR(priv, "CSR values:\n");
|
|
IWL_ERR(priv, "(2nd byte of CSR_INT_COALESCING is "
|
|
"CSR_INT_PERIODIC_REG)\n");
|
|
for (i = 0; i < ARRAY_SIZE(csr_tbl); i++) {
|
|
IWL_ERR(priv, " %25s: 0X%08x\n",
|
|
get_csr_string(csr_tbl[i]),
|
|
iwl_read32(priv, csr_tbl[i]));
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(iwl_dump_csr);
|
|
|
|
static const char *get_fh_string(int cmd)
|
|
{
|
|
switch (cmd) {
|
|
IWL_CMD(FH_RSCSR_CHNL0_STTS_WPTR_REG);
|
|
IWL_CMD(FH_RSCSR_CHNL0_RBDCB_BASE_REG);
|
|
IWL_CMD(FH_RSCSR_CHNL0_WPTR);
|
|
IWL_CMD(FH_MEM_RCSR_CHNL0_CONFIG_REG);
|
|
IWL_CMD(FH_MEM_RSSR_SHARED_CTRL_REG);
|
|
IWL_CMD(FH_MEM_RSSR_RX_STATUS_REG);
|
|
IWL_CMD(FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV);
|
|
IWL_CMD(FH_TSSR_TX_STATUS_REG);
|
|
IWL_CMD(FH_TSSR_TX_ERROR_REG);
|
|
default:
|
|
return "UNKNOWN";
|
|
|
|
}
|
|
}
|
|
|
|
int iwl_dump_fh(struct iwl_priv *priv, char **buf, bool display)
|
|
{
|
|
int i;
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
int pos = 0;
|
|
size_t bufsz = 0;
|
|
#endif
|
|
u32 fh_tbl[] = {
|
|
FH_RSCSR_CHNL0_STTS_WPTR_REG,
|
|
FH_RSCSR_CHNL0_RBDCB_BASE_REG,
|
|
FH_RSCSR_CHNL0_WPTR,
|
|
FH_MEM_RCSR_CHNL0_CONFIG_REG,
|
|
FH_MEM_RSSR_SHARED_CTRL_REG,
|
|
FH_MEM_RSSR_RX_STATUS_REG,
|
|
FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV,
|
|
FH_TSSR_TX_STATUS_REG,
|
|
FH_TSSR_TX_ERROR_REG
|
|
};
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
if (display) {
|
|
bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40;
|
|
*buf = kmalloc(bufsz, GFP_KERNEL);
|
|
if (!*buf)
|
|
return -ENOMEM;
|
|
pos += scnprintf(*buf + pos, bufsz - pos,
|
|
"FH register values:\n");
|
|
for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) {
|
|
pos += scnprintf(*buf + pos, bufsz - pos,
|
|
" %34s: 0X%08x\n",
|
|
get_fh_string(fh_tbl[i]),
|
|
iwl_read_direct32(priv, fh_tbl[i]));
|
|
}
|
|
return pos;
|
|
}
|
|
#endif
|
|
IWL_ERR(priv, "FH register values:\n");
|
|
for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) {
|
|
IWL_ERR(priv, " %34s: 0X%08x\n",
|
|
get_fh_string(fh_tbl[i]),
|
|
iwl_read_direct32(priv, fh_tbl[i]));
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_dump_fh);
|
|
|
|
static void iwl_force_rf_reset(struct iwl_priv *priv)
|
|
{
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
|
return;
|
|
|
|
if (!iwl_is_associated(priv)) {
|
|
IWL_DEBUG_SCAN(priv, "force reset rejected: not associated\n");
|
|
return;
|
|
}
|
|
/*
|
|
* There is no easy and better way to force reset the radio,
|
|
* the only known method is switching channel which will force to
|
|
* reset and tune the radio.
|
|
* Use internal short scan (single channel) operation to should
|
|
* achieve this objective.
|
|
* Driver should reset the radio when number of consecutive missed
|
|
* beacon, or any other uCode error condition detected.
|
|
*/
|
|
IWL_DEBUG_INFO(priv, "perform radio reset.\n");
|
|
iwl_internal_short_hw_scan(priv);
|
|
}
|
|
|
|
|
|
int iwl_force_reset(struct iwl_priv *priv, int mode, bool external)
|
|
{
|
|
struct iwl_force_reset *force_reset;
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
|
return -EINVAL;
|
|
|
|
if (mode >= IWL_MAX_FORCE_RESET) {
|
|
IWL_DEBUG_INFO(priv, "invalid reset request.\n");
|
|
return -EINVAL;
|
|
}
|
|
force_reset = &priv->force_reset[mode];
|
|
force_reset->reset_request_count++;
|
|
if (!external) {
|
|
if (force_reset->last_force_reset_jiffies &&
|
|
time_after(force_reset->last_force_reset_jiffies +
|
|
force_reset->reset_duration, jiffies)) {
|
|
IWL_DEBUG_INFO(priv, "force reset rejected\n");
|
|
force_reset->reset_reject_count++;
|
|
return -EAGAIN;
|
|
}
|
|
}
|
|
force_reset->reset_success_count++;
|
|
force_reset->last_force_reset_jiffies = jiffies;
|
|
IWL_DEBUG_INFO(priv, "perform force reset (%d)\n", mode);
|
|
switch (mode) {
|
|
case IWL_RF_RESET:
|
|
iwl_force_rf_reset(priv);
|
|
break;
|
|
case IWL_FW_RESET:
|
|
/*
|
|
* if the request is from external(ex: debugfs),
|
|
* then always perform the request in regardless the module
|
|
* parameter setting
|
|
* if the request is from internal (uCode error or driver
|
|
* detect failure), then fw_restart module parameter
|
|
* need to be check before performing firmware reload
|
|
*/
|
|
if (!external && !priv->cfg->mod_params->restart_fw) {
|
|
IWL_DEBUG_INFO(priv, "Cancel firmware reload based on "
|
|
"module parameter setting\n");
|
|
break;
|
|
}
|
|
IWL_ERR(priv, "On demand firmware reload\n");
|
|
/* Set the FW error flag -- cleared on iwl_down */
|
|
set_bit(STATUS_FW_ERROR, &priv->status);
|
|
wake_up_interruptible(&priv->wait_command_queue);
|
|
/*
|
|
* Keep the restart process from trying to send host
|
|
* commands by clearing the INIT status bit
|
|
*/
|
|
clear_bit(STATUS_READY, &priv->status);
|
|
queue_work(priv->workqueue, &priv->restart);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_force_reset);
|
|
|
|
/**
|
|
* iwl_bg_monitor_recover - Timer callback to check for stuck queue and recover
|
|
*
|
|
* During normal condition (no queue is stuck), the timer is continually set to
|
|
* execute every monitor_recover_period milliseconds after the last timer
|
|
* expired. When the queue read_ptr is at the same place, the timer is
|
|
* shorten to 100mSecs. This is
|
|
* 1) to reduce the chance that the read_ptr may wrap around (not stuck)
|
|
* 2) to detect the stuck queues quicker before the station and AP can
|
|
* disassociate each other.
|
|
*
|
|
* This function monitors all the tx queues and recover from it if any
|
|
* of the queues are stuck.
|
|
* 1. It first check the cmd queue for stuck conditions. If it is stuck,
|
|
* it will recover by resetting the firmware and return.
|
|
* 2. Then, it checks for station association. If it associates it will check
|
|
* other queues. If any queue is stuck, it will recover by resetting
|
|
* the firmware.
|
|
* Note: It the number of times the queue read_ptr to be at the same place to
|
|
* be MAX_REPEAT+1 in order to consider to be stuck.
|
|
*/
|
|
/*
|
|
* The maximum number of times the read pointer of the tx queue at the
|
|
* same place without considering to be stuck.
|
|
*/
|
|
#define MAX_REPEAT (2)
|
|
static int iwl_check_stuck_queue(struct iwl_priv *priv, int cnt)
|
|
{
|
|
struct iwl_tx_queue *txq;
|
|
struct iwl_queue *q;
|
|
|
|
txq = &priv->txq[cnt];
|
|
q = &txq->q;
|
|
/* queue is empty, skip */
|
|
if (q->read_ptr != q->write_ptr) {
|
|
if (q->read_ptr == q->last_read_ptr) {
|
|
/* a queue has not been read from last time */
|
|
if (q->repeat_same_read_ptr > MAX_REPEAT) {
|
|
IWL_ERR(priv,
|
|
"queue %d stuck %d time. Fw reload.\n",
|
|
q->id, q->repeat_same_read_ptr);
|
|
q->repeat_same_read_ptr = 0;
|
|
iwl_force_reset(priv, IWL_FW_RESET, false);
|
|
} else {
|
|
q->repeat_same_read_ptr++;
|
|
IWL_DEBUG_RADIO(priv,
|
|
"queue %d, not read %d time\n",
|
|
q->id,
|
|
q->repeat_same_read_ptr);
|
|
if (!priv->cfg->advanced_bt_coexist) {
|
|
mod_timer(&priv->monitor_recover,
|
|
jiffies + msecs_to_jiffies(
|
|
IWL_ONE_HUNDRED_MSECS));
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
} else {
|
|
q->last_read_ptr = q->read_ptr;
|
|
q->repeat_same_read_ptr = 0;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void iwl_bg_monitor_recover(unsigned long data)
|
|
{
|
|
struct iwl_priv *priv = (struct iwl_priv *)data;
|
|
int cnt;
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
|
return;
|
|
|
|
/* monitor and check for stuck cmd queue */
|
|
if (iwl_check_stuck_queue(priv, IWL_CMD_QUEUE_NUM))
|
|
return;
|
|
|
|
/* monitor and check for other stuck queues */
|
|
if (iwl_is_associated(priv)) {
|
|
for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
|
|
/* skip as we already checked the command queue */
|
|
if (cnt == IWL_CMD_QUEUE_NUM)
|
|
continue;
|
|
if (iwl_check_stuck_queue(priv, cnt))
|
|
return;
|
|
}
|
|
}
|
|
/*
|
|
* Reschedule the timer to occur in
|
|
* priv->cfg->monitor_recover_period
|
|
*/
|
|
mod_timer(&priv->monitor_recover,
|
|
jiffies + msecs_to_jiffies(priv->cfg->monitor_recover_period));
|
|
}
|
|
EXPORT_SYMBOL(iwl_bg_monitor_recover);
|
|
|
|
|
|
/*
|
|
* extended beacon time format
|
|
* time in usec will be changed into a 32-bit value in extended:internal format
|
|
* the extended part is the beacon counts
|
|
* the internal part is the time in usec within one beacon interval
|
|
*/
|
|
u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval)
|
|
{
|
|
u32 quot;
|
|
u32 rem;
|
|
u32 interval = beacon_interval * TIME_UNIT;
|
|
|
|
if (!interval || !usec)
|
|
return 0;
|
|
|
|
quot = (usec / interval) &
|
|
(iwl_beacon_time_mask_high(priv,
|
|
priv->hw_params.beacon_time_tsf_bits) >>
|
|
priv->hw_params.beacon_time_tsf_bits);
|
|
rem = (usec % interval) & iwl_beacon_time_mask_low(priv,
|
|
priv->hw_params.beacon_time_tsf_bits);
|
|
|
|
return (quot << priv->hw_params.beacon_time_tsf_bits) + rem;
|
|
}
|
|
EXPORT_SYMBOL(iwl_usecs_to_beacons);
|
|
|
|
/* base is usually what we get from ucode with each received frame,
|
|
* the same as HW timer counter counting down
|
|
*/
|
|
__le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
|
|
u32 addon, u32 beacon_interval)
|
|
{
|
|
u32 base_low = base & iwl_beacon_time_mask_low(priv,
|
|
priv->hw_params.beacon_time_tsf_bits);
|
|
u32 addon_low = addon & iwl_beacon_time_mask_low(priv,
|
|
priv->hw_params.beacon_time_tsf_bits);
|
|
u32 interval = beacon_interval * TIME_UNIT;
|
|
u32 res = (base & iwl_beacon_time_mask_high(priv,
|
|
priv->hw_params.beacon_time_tsf_bits)) +
|
|
(addon & iwl_beacon_time_mask_high(priv,
|
|
priv->hw_params.beacon_time_tsf_bits));
|
|
|
|
if (base_low > addon_low)
|
|
res += base_low - addon_low;
|
|
else if (base_low < addon_low) {
|
|
res += interval + base_low - addon_low;
|
|
res += (1 << priv->hw_params.beacon_time_tsf_bits);
|
|
} else
|
|
res += (1 << priv->hw_params.beacon_time_tsf_bits);
|
|
|
|
return cpu_to_le32(res);
|
|
}
|
|
EXPORT_SYMBOL(iwl_add_beacon_time);
|
|
|
|
#ifdef CONFIG_PM
|
|
|
|
int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
struct iwl_priv *priv = pci_get_drvdata(pdev);
|
|
|
|
/*
|
|
* This function is called when system goes into suspend state
|
|
* mac80211 will call iwl_mac_stop() from the mac80211 suspend function
|
|
* first but since iwl_mac_stop() has no knowledge of who the caller is,
|
|
* it will not call apm_ops.stop() to stop the DMA operation.
|
|
* Calling apm_ops.stop here to make sure we stop the DMA.
|
|
*/
|
|
priv->cfg->ops->lib->apm_ops.stop(priv);
|
|
|
|
pci_save_state(pdev);
|
|
pci_disable_device(pdev);
|
|
pci_set_power_state(pdev, PCI_D3hot);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_pci_suspend);
|
|
|
|
int iwl_pci_resume(struct pci_dev *pdev)
|
|
{
|
|
struct iwl_priv *priv = pci_get_drvdata(pdev);
|
|
int ret;
|
|
bool hw_rfkill = false;
|
|
|
|
/*
|
|
* We disable the RETRY_TIMEOUT register (0x41) to keep
|
|
* PCI Tx retries from interfering with C3 CPU state.
|
|
*/
|
|
pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
|
|
|
|
pci_set_power_state(pdev, PCI_D0);
|
|
ret = pci_enable_device(pdev);
|
|
if (ret)
|
|
return ret;
|
|
pci_restore_state(pdev);
|
|
iwl_enable_interrupts(priv);
|
|
|
|
if (!(iwl_read32(priv, CSR_GP_CNTRL) &
|
|
CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
|
|
hw_rfkill = true;
|
|
|
|
if (hw_rfkill)
|
|
set_bit(STATUS_RF_KILL_HW, &priv->status);
|
|
else
|
|
clear_bit(STATUS_RF_KILL_HW, &priv->status);
|
|
|
|
wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rfkill);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(iwl_pci_resume);
|
|
|
|
#endif /* CONFIG_PM */
|