3ee59f8d0d
It does not make sense to apply EXPORT_SYMBOL to a static symbol. Fixes this build error: drivers/net/wireless/iwlwifi/iwl3945-base.c:1697: error: __ksymtab_iwl3945_rx_queue_reset causes a section type conflict Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
5403 lines
148 KiB
C
5403 lines
148 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
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*
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* Portions of this file are derived from the ipw3945 project, as well
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* as portions of the ieee80211 subsystem header files.
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*
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* This program is free software; you can redistribute it and/or modify it
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* 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 WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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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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*****************************************************************************/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/dma-mapping.h>
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#include <linux/delay.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <linux/wireless.h>
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#include <linux/firmware.h>
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#include <linux/etherdevice.h>
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#include <linux/if_arp.h>
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#include <net/ieee80211_radiotap.h>
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#include <net/lib80211.h>
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#include <net/mac80211.h>
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#include <asm/div64.h>
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#define DRV_NAME "iwl3945"
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#include "iwl-fh.h"
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#include "iwl-3945-fh.h"
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#include "iwl-commands.h"
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#include "iwl-sta.h"
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#include "iwl-3945.h"
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#include "iwl-helpers.h"
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#include "iwl-core.h"
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#include "iwl-dev.h"
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/*
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* module name, copyright, version, etc.
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*/
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#define DRV_DESCRIPTION \
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"Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
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#ifdef CONFIG_IWLWIFI_DEBUG
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#define VD "d"
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#else
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#define VD
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#endif
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#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
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#define VS "s"
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#else
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#define VS
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#endif
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#define IWL39_VERSION "1.2.26k" VD VS
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#define DRV_COPYRIGHT "Copyright(c) 2003-2009 Intel Corporation"
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#define DRV_AUTHOR "<ilw@linux.intel.com>"
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#define DRV_VERSION IWL39_VERSION
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MODULE_DESCRIPTION(DRV_DESCRIPTION);
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MODULE_VERSION(DRV_VERSION);
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MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
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MODULE_LICENSE("GPL");
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/* module parameters */
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struct iwl_mod_params iwl3945_mod_params = {
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.num_of_queues = IWL39_MAX_NUM_QUEUES,
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.sw_crypto = 1,
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.restart_fw = 1,
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/* the rest are 0 by default */
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};
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/*************** STATION TABLE MANAGEMENT ****
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* mac80211 should be examined to determine if sta_info is duplicating
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* the functionality provided here
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*/
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/**************************************************************/
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#if 0 /* temporary disable till we add real remove station */
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/**
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* iwl3945_remove_station - Remove driver's knowledge of station.
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*
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* NOTE: This does not remove station from device's station table.
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*/
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static u8 iwl3945_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
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{
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int index = IWL_INVALID_STATION;
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int i;
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unsigned long flags;
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spin_lock_irqsave(&priv->sta_lock, flags);
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if (is_ap)
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index = IWL_AP_ID;
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else if (is_broadcast_ether_addr(addr))
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index = priv->hw_params.bcast_sta_id;
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else
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for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++)
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if (priv->stations_39[i].used &&
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!compare_ether_addr(priv->stations_39[i].sta.sta.addr,
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addr)) {
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index = i;
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break;
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}
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if (unlikely(index == IWL_INVALID_STATION))
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goto out;
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if (priv->stations_39[index].used) {
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priv->stations_39[index].used = 0;
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priv->num_stations--;
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}
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BUG_ON(priv->num_stations < 0);
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out:
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spin_unlock_irqrestore(&priv->sta_lock, flags);
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return 0;
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}
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#endif
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/**
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* iwl3945_clear_stations_table - Clear the driver's station table
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*
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* NOTE: This does not clear or otherwise alter the device's station table.
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*/
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static void iwl3945_clear_stations_table(struct iwl_priv *priv)
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{
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unsigned long flags;
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spin_lock_irqsave(&priv->sta_lock, flags);
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priv->num_stations = 0;
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memset(priv->stations_39, 0, sizeof(priv->stations_39));
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spin_unlock_irqrestore(&priv->sta_lock, flags);
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}
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/**
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* iwl3945_add_station - Add station to station tables in driver and device
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*/
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u8 iwl3945_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap, u8 flags)
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{
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int i;
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int index = IWL_INVALID_STATION;
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struct iwl3945_station_entry *station;
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unsigned long flags_spin;
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u8 rate;
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spin_lock_irqsave(&priv->sta_lock, flags_spin);
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if (is_ap)
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index = IWL_AP_ID;
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else if (is_broadcast_ether_addr(addr))
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index = priv->hw_params.bcast_sta_id;
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else
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for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
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if (!compare_ether_addr(priv->stations_39[i].sta.sta.addr,
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addr)) {
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index = i;
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break;
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}
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if (!priv->stations_39[i].used &&
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index == IWL_INVALID_STATION)
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index = i;
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}
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/* These two conditions has the same outcome but keep them separate
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since they have different meaning */
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if (unlikely(index == IWL_INVALID_STATION)) {
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spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
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return index;
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}
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if (priv->stations_39[index].used &&
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!compare_ether_addr(priv->stations_39[index].sta.sta.addr, addr)) {
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spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
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return index;
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}
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IWL_DEBUG_ASSOC(priv, "Add STA ID %d: %pM\n", index, addr);
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station = &priv->stations_39[index];
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station->used = 1;
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priv->num_stations++;
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/* Set up the REPLY_ADD_STA command to send to device */
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memset(&station->sta, 0, sizeof(struct iwl3945_addsta_cmd));
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memcpy(station->sta.sta.addr, addr, ETH_ALEN);
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station->sta.mode = 0;
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station->sta.sta.sta_id = index;
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station->sta.station_flags = 0;
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if (priv->band == IEEE80211_BAND_5GHZ)
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rate = IWL_RATE_6M_PLCP;
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else
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rate = IWL_RATE_1M_PLCP;
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/* Turn on both antennas for the station... */
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station->sta.rate_n_flags =
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iwl3945_hw_set_rate_n_flags(rate, RATE_MCS_ANT_AB_MSK);
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spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
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/* Add station to device's station table */
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iwl_send_add_sta(priv,
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(struct iwl_addsta_cmd *)&station->sta, flags);
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return index;
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}
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static int iwl3945_send_rxon_assoc(struct iwl_priv *priv)
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{
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int rc = 0;
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struct iwl_rx_packet *res = NULL;
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struct iwl3945_rxon_assoc_cmd rxon_assoc;
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struct iwl_host_cmd cmd = {
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.id = REPLY_RXON_ASSOC,
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.len = sizeof(rxon_assoc),
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.meta.flags = CMD_WANT_SKB,
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.data = &rxon_assoc,
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};
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const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon;
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const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon;
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if ((rxon1->flags == rxon2->flags) &&
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(rxon1->filter_flags == rxon2->filter_flags) &&
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(rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
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(rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
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IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n");
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return 0;
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}
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rxon_assoc.flags = priv->staging_rxon.flags;
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rxon_assoc.filter_flags = priv->staging_rxon.filter_flags;
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rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates;
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rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates;
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rxon_assoc.reserved = 0;
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rc = iwl_send_cmd_sync(priv, &cmd);
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if (rc)
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return rc;
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res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
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if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
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IWL_ERR(priv, "Bad return from REPLY_RXON_ASSOC command\n");
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rc = -EIO;
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}
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priv->alloc_rxb_skb--;
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dev_kfree_skb_any(cmd.meta.u.skb);
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return rc;
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}
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/**
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* iwl3945_get_antenna_flags - Get antenna flags for RXON command
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* @priv: eeprom and antenna fields are used to determine antenna flags
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*
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* priv->eeprom39 is used to determine if antenna AUX/MAIN are reversed
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* iwl3945_mod_params.antenna specifies the antenna diversity mode:
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*
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* IWL_ANTENNA_DIVERSITY - NIC selects best antenna by itself
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* IWL_ANTENNA_MAIN - Force MAIN antenna
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* IWL_ANTENNA_AUX - Force AUX antenna
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*/
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__le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv)
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{
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struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
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switch (iwl3945_mod_params.antenna) {
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case IWL_ANTENNA_DIVERSITY:
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return 0;
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case IWL_ANTENNA_MAIN:
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if (eeprom->antenna_switch_type)
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return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
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return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
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case IWL_ANTENNA_AUX:
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if (eeprom->antenna_switch_type)
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return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
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return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
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}
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/* bad antenna selector value */
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IWL_ERR(priv, "Bad antenna selector value (0x%x)\n",
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iwl3945_mod_params.antenna);
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return 0; /* "diversity" is default if error */
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}
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/**
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* iwl3945_commit_rxon - commit staging_rxon to hardware
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*
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* The RXON command in staging_rxon is committed to the hardware and
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* the active_rxon structure is updated with the new data. This
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* function correctly transitions out of the RXON_ASSOC_MSK state if
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* a HW tune is required based on the RXON structure changes.
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*/
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static int iwl3945_commit_rxon(struct iwl_priv *priv)
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{
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/* cast away the const for active_rxon in this function */
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struct iwl3945_rxon_cmd *active_rxon = (void *)&priv->active_rxon;
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struct iwl3945_rxon_cmd *staging_rxon = (void *)&priv->staging_rxon;
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int rc = 0;
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bool new_assoc =
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!!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK);
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if (!iwl_is_alive(priv))
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return -1;
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/* always get timestamp with Rx frame */
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staging_rxon->flags |= RXON_FLG_TSF2HOST_MSK;
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/* select antenna */
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staging_rxon->flags &=
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~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
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staging_rxon->flags |= iwl3945_get_antenna_flags(priv);
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rc = iwl_check_rxon_cmd(priv);
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if (rc) {
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IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
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return -EINVAL;
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}
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/* If we don't need to send a full RXON, we can use
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* iwl3945_rxon_assoc_cmd which is used to reconfigure filter
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* and other flags for the current radio configuration. */
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if (!iwl_full_rxon_required(priv)) {
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rc = iwl3945_send_rxon_assoc(priv);
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if (rc) {
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IWL_ERR(priv, "Error setting RXON_ASSOC "
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"configuration (%d).\n", rc);
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return rc;
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}
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memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
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return 0;
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}
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/* If we are currently associated and the new config requires
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* an RXON_ASSOC and the new config wants the associated mask enabled,
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* we must clear the associated from the active configuration
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* before we apply the new config */
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if (iwl_is_associated(priv) && new_assoc) {
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IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n");
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active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
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/*
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* reserved4 and 5 could have been filled by the iwlcore code.
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* Let's clear them before pushing to the 3945.
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*/
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active_rxon->reserved4 = 0;
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active_rxon->reserved5 = 0;
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rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
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sizeof(struct iwl3945_rxon_cmd),
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&priv->active_rxon);
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/* If the mask clearing failed then we set
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* active_rxon back to what it was previously */
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if (rc) {
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active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
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IWL_ERR(priv, "Error clearing ASSOC_MSK on current "
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"configuration (%d).\n", rc);
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return rc;
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}
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}
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IWL_DEBUG_INFO(priv, "Sending RXON\n"
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"* with%s RXON_FILTER_ASSOC_MSK\n"
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"* channel = %d\n"
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"* bssid = %pM\n",
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(new_assoc ? "" : "out"),
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le16_to_cpu(staging_rxon->channel),
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staging_rxon->bssid_addr);
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/*
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* reserved4 and 5 could have been filled by the iwlcore code.
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* Let's clear them before pushing to the 3945.
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*/
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staging_rxon->reserved4 = 0;
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staging_rxon->reserved5 = 0;
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iwl_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto);
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/* Apply the new configuration */
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rc = iwl_send_cmd_pdu(priv, REPLY_RXON,
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sizeof(struct iwl3945_rxon_cmd),
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staging_rxon);
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if (rc) {
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IWL_ERR(priv, "Error setting new configuration (%d).\n", rc);
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return rc;
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}
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memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
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iwl3945_clear_stations_table(priv);
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/* If we issue a new RXON command which required a tune then we must
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* send a new TXPOWER command or we won't be able to Tx any frames */
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rc = priv->cfg->ops->lib->send_tx_power(priv);
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if (rc) {
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IWL_ERR(priv, "Error setting Tx power (%d).\n", rc);
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return rc;
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}
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|
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/* Add the broadcast address so we can send broadcast frames */
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if (iwl3945_add_station(priv, iwl_bcast_addr, 0, 0) ==
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IWL_INVALID_STATION) {
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IWL_ERR(priv, "Error adding BROADCAST address for transmit.\n");
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return -EIO;
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}
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|
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/* If we have set the ASSOC_MSK and we are in BSS mode then
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* add the IWL_AP_ID to the station rate table */
|
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if (iwl_is_associated(priv) &&
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(priv->iw_mode == NL80211_IFTYPE_STATION))
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if (iwl3945_add_station(priv, priv->active_rxon.bssid_addr,
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1, 0)
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== IWL_INVALID_STATION) {
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IWL_ERR(priv, "Error adding AP address for transmit\n");
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return -EIO;
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}
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|
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/* Init the hardware's rate fallback order based on the band */
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rc = iwl3945_init_hw_rate_table(priv);
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if (rc) {
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IWL_ERR(priv, "Error setting HW rate table: %02X\n", rc);
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return -EIO;
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}
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return 0;
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}
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|
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static int iwl3945_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
|
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struct ieee80211_key_conf *keyconf,
|
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u8 sta_id)
|
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{
|
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unsigned long flags;
|
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__le16 key_flags = 0;
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int ret;
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key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
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key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
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if (sta_id == priv->hw_params.bcast_sta_id)
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key_flags |= STA_KEY_MULTICAST_MSK;
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|
keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
|
|
keyconf->hw_key_idx = keyconf->keyidx;
|
|
key_flags &= ~STA_KEY_FLG_INVALID;
|
|
|
|
spin_lock_irqsave(&priv->sta_lock, flags);
|
|
priv->stations_39[sta_id].keyinfo.alg = keyconf->alg;
|
|
priv->stations_39[sta_id].keyinfo.keylen = keyconf->keylen;
|
|
memcpy(priv->stations_39[sta_id].keyinfo.key, keyconf->key,
|
|
keyconf->keylen);
|
|
|
|
memcpy(priv->stations_39[sta_id].sta.key.key, keyconf->key,
|
|
keyconf->keylen);
|
|
|
|
if ((priv->stations_39[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
|
|
== STA_KEY_FLG_NO_ENC)
|
|
priv->stations_39[sta_id].sta.key.key_offset =
|
|
iwl_get_free_ucode_key_index(priv);
|
|
/* else, we are overriding an existing key => no need to allocated room
|
|
* in uCode. */
|
|
|
|
WARN(priv->stations_39[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
|
|
"no space for a new key");
|
|
|
|
priv->stations_39[sta_id].sta.key.key_flags = key_flags;
|
|
priv->stations_39[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
|
|
priv->stations_39[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
|
|
|
|
IWL_DEBUG_INFO(priv, "hwcrypto: modify ucode station key info\n");
|
|
|
|
ret = iwl_send_add_sta(priv,
|
|
(struct iwl_addsta_cmd *)&priv->stations_39[sta_id].sta, CMD_ASYNC);
|
|
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int iwl3945_set_tkip_dynamic_key_info(struct iwl_priv *priv,
|
|
struct ieee80211_key_conf *keyconf,
|
|
u8 sta_id)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int iwl3945_set_wep_dynamic_key_info(struct iwl_priv *priv,
|
|
struct ieee80211_key_conf *keyconf,
|
|
u8 sta_id)
|
|
{
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static int iwl3945_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id)
|
|
{
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&priv->sta_lock, flags);
|
|
memset(&priv->stations_39[sta_id].keyinfo, 0, sizeof(struct iwl3945_hw_key));
|
|
memset(&priv->stations_39[sta_id].sta.key, 0,
|
|
sizeof(struct iwl4965_keyinfo));
|
|
priv->stations_39[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
|
|
priv->stations_39[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
|
|
priv->stations_39[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
|
|
spin_unlock_irqrestore(&priv->sta_lock, flags);
|
|
|
|
IWL_DEBUG_INFO(priv, "hwcrypto: clear ucode station key info\n");
|
|
iwl_send_add_sta(priv,
|
|
(struct iwl_addsta_cmd *)&priv->stations_39[sta_id].sta, 0);
|
|
return 0;
|
|
}
|
|
|
|
static int iwl3945_set_dynamic_key(struct iwl_priv *priv,
|
|
struct ieee80211_key_conf *keyconf, u8 sta_id)
|
|
{
|
|
int ret = 0;
|
|
|
|
keyconf->hw_key_idx = HW_KEY_DYNAMIC;
|
|
|
|
switch (keyconf->alg) {
|
|
case ALG_CCMP:
|
|
ret = iwl3945_set_ccmp_dynamic_key_info(priv, keyconf, sta_id);
|
|
break;
|
|
case ALG_TKIP:
|
|
ret = iwl3945_set_tkip_dynamic_key_info(priv, keyconf, sta_id);
|
|
break;
|
|
case ALG_WEP:
|
|
ret = iwl3945_set_wep_dynamic_key_info(priv, keyconf, sta_id);
|
|
break;
|
|
default:
|
|
IWL_ERR(priv, "Unknown alg: %s alg = %d\n", __func__, keyconf->alg);
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
IWL_DEBUG_WEP(priv, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n",
|
|
keyconf->alg, keyconf->keylen, keyconf->keyidx,
|
|
sta_id, ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int iwl3945_remove_static_key(struct iwl_priv *priv)
|
|
{
|
|
int ret = -EOPNOTSUPP;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int iwl3945_set_static_key(struct iwl_priv *priv,
|
|
struct ieee80211_key_conf *key)
|
|
{
|
|
if (key->alg == ALG_WEP)
|
|
return -EOPNOTSUPP;
|
|
|
|
IWL_ERR(priv, "Static key invalid: alg %d\n", key->alg);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static void iwl3945_clear_free_frames(struct iwl_priv *priv)
|
|
{
|
|
struct list_head *element;
|
|
|
|
IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n",
|
|
priv->frames_count);
|
|
|
|
while (!list_empty(&priv->free_frames)) {
|
|
element = priv->free_frames.next;
|
|
list_del(element);
|
|
kfree(list_entry(element, struct iwl3945_frame, list));
|
|
priv->frames_count--;
|
|
}
|
|
|
|
if (priv->frames_count) {
|
|
IWL_WARN(priv, "%d frames still in use. Did we lose one?\n",
|
|
priv->frames_count);
|
|
priv->frames_count = 0;
|
|
}
|
|
}
|
|
|
|
static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl_priv *priv)
|
|
{
|
|
struct iwl3945_frame *frame;
|
|
struct list_head *element;
|
|
if (list_empty(&priv->free_frames)) {
|
|
frame = kzalloc(sizeof(*frame), GFP_KERNEL);
|
|
if (!frame) {
|
|
IWL_ERR(priv, "Could not allocate frame!\n");
|
|
return NULL;
|
|
}
|
|
|
|
priv->frames_count++;
|
|
return frame;
|
|
}
|
|
|
|
element = priv->free_frames.next;
|
|
list_del(element);
|
|
return list_entry(element, struct iwl3945_frame, list);
|
|
}
|
|
|
|
static void iwl3945_free_frame(struct iwl_priv *priv, struct iwl3945_frame *frame)
|
|
{
|
|
memset(frame, 0, sizeof(*frame));
|
|
list_add(&frame->list, &priv->free_frames);
|
|
}
|
|
|
|
unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
|
|
struct ieee80211_hdr *hdr,
|
|
int left)
|
|
{
|
|
|
|
if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
|
|
((priv->iw_mode != NL80211_IFTYPE_ADHOC) &&
|
|
(priv->iw_mode != NL80211_IFTYPE_AP)))
|
|
return 0;
|
|
|
|
if (priv->ibss_beacon->len > left)
|
|
return 0;
|
|
|
|
memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
|
|
|
|
return priv->ibss_beacon->len;
|
|
}
|
|
|
|
static int iwl3945_send_beacon_cmd(struct iwl_priv *priv)
|
|
{
|
|
struct iwl3945_frame *frame;
|
|
unsigned int frame_size;
|
|
int rc;
|
|
u8 rate;
|
|
|
|
frame = iwl3945_get_free_frame(priv);
|
|
|
|
if (!frame) {
|
|
IWL_ERR(priv, "Could not obtain free frame buffer for beacon "
|
|
"command.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
rate = iwl_rate_get_lowest_plcp(priv);
|
|
|
|
frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate);
|
|
|
|
rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
|
|
&frame->u.cmd[0]);
|
|
|
|
iwl3945_free_frame(priv, frame);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void iwl3945_unset_hw_params(struct iwl_priv *priv)
|
|
{
|
|
if (priv->shared_virt)
|
|
pci_free_consistent(priv->pci_dev,
|
|
sizeof(struct iwl3945_shared),
|
|
priv->shared_virt,
|
|
priv->shared_phys);
|
|
}
|
|
|
|
#define MAX_UCODE_BEACON_INTERVAL 1024
|
|
#define INTEL_CONN_LISTEN_INTERVAL cpu_to_le16(0xA)
|
|
|
|
static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val)
|
|
{
|
|
u16 new_val = 0;
|
|
u16 beacon_factor = 0;
|
|
|
|
beacon_factor =
|
|
(beacon_val + MAX_UCODE_BEACON_INTERVAL)
|
|
/ MAX_UCODE_BEACON_INTERVAL;
|
|
new_val = beacon_val / beacon_factor;
|
|
|
|
return cpu_to_le16(new_val);
|
|
}
|
|
|
|
static void iwl3945_setup_rxon_timing(struct iwl_priv *priv)
|
|
{
|
|
u64 interval_tm_unit;
|
|
u64 tsf, result;
|
|
unsigned long flags;
|
|
struct ieee80211_conf *conf = NULL;
|
|
u16 beacon_int = 0;
|
|
|
|
conf = ieee80211_get_hw_conf(priv->hw);
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp);
|
|
priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL;
|
|
|
|
tsf = priv->timestamp;
|
|
|
|
beacon_int = priv->beacon_int;
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
if (priv->iw_mode == NL80211_IFTYPE_STATION) {
|
|
if (beacon_int == 0) {
|
|
priv->rxon_timing.beacon_interval = cpu_to_le16(100);
|
|
priv->rxon_timing.beacon_init_val = cpu_to_le32(102400);
|
|
} else {
|
|
priv->rxon_timing.beacon_interval =
|
|
cpu_to_le16(beacon_int);
|
|
priv->rxon_timing.beacon_interval =
|
|
iwl3945_adjust_beacon_interval(
|
|
le16_to_cpu(priv->rxon_timing.beacon_interval));
|
|
}
|
|
|
|
priv->rxon_timing.atim_window = 0;
|
|
} else {
|
|
priv->rxon_timing.beacon_interval =
|
|
iwl3945_adjust_beacon_interval(conf->beacon_int);
|
|
/* TODO: we need to get atim_window from upper stack
|
|
* for now we set to 0 */
|
|
priv->rxon_timing.atim_window = 0;
|
|
}
|
|
|
|
interval_tm_unit =
|
|
(le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024);
|
|
result = do_div(tsf, interval_tm_unit);
|
|
priv->rxon_timing.beacon_init_val =
|
|
cpu_to_le32((u32) ((u64) interval_tm_unit - result));
|
|
|
|
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));
|
|
}
|
|
|
|
static int iwl3945_set_mode(struct iwl_priv *priv, int mode)
|
|
{
|
|
if (mode == NL80211_IFTYPE_ADHOC) {
|
|
const struct iwl_channel_info *ch_info;
|
|
|
|
ch_info = iwl_get_channel_info(priv,
|
|
priv->band,
|
|
le16_to_cpu(priv->staging_rxon.channel));
|
|
|
|
if (!ch_info || !is_channel_ibss(ch_info)) {
|
|
IWL_ERR(priv, "channel %d not IBSS channel\n",
|
|
le16_to_cpu(priv->staging_rxon.channel));
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
iwl_connection_init_rx_config(priv, mode);
|
|
|
|
iwl3945_clear_stations_table(priv);
|
|
|
|
/* don't commit rxon if rf-kill is on*/
|
|
if (!iwl_is_ready_rf(priv))
|
|
return -EAGAIN;
|
|
|
|
cancel_delayed_work(&priv->scan_check);
|
|
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");
|
|
return -EAGAIN;
|
|
}
|
|
|
|
iwl3945_commit_rxon(priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
|
|
struct ieee80211_tx_info *info,
|
|
struct iwl_cmd *cmd,
|
|
struct sk_buff *skb_frag,
|
|
int sta_id)
|
|
{
|
|
struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
|
|
struct iwl3945_hw_key *keyinfo =
|
|
&priv->stations_39[sta_id].keyinfo;
|
|
|
|
switch (keyinfo->alg) {
|
|
case ALG_CCMP:
|
|
tx->sec_ctl = TX_CMD_SEC_CCM;
|
|
memcpy(tx->key, keyinfo->key, keyinfo->keylen);
|
|
IWL_DEBUG_TX(priv, "tx_cmd with AES hwcrypto\n");
|
|
break;
|
|
|
|
case ALG_TKIP:
|
|
break;
|
|
|
|
case ALG_WEP:
|
|
tx->sec_ctl = TX_CMD_SEC_WEP |
|
|
(info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT;
|
|
|
|
if (keyinfo->keylen == 13)
|
|
tx->sec_ctl |= TX_CMD_SEC_KEY128;
|
|
|
|
memcpy(&tx->key[3], keyinfo->key, keyinfo->keylen);
|
|
|
|
IWL_DEBUG_TX(priv, "Configuring packet for WEP encryption "
|
|
"with key %d\n", info->control.hw_key->hw_key_idx);
|
|
break;
|
|
|
|
default:
|
|
IWL_ERR(priv, "Unknown encode alg %d\n", keyinfo->alg);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* handle build REPLY_TX command notification.
|
|
*/
|
|
static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv,
|
|
struct iwl_cmd *cmd,
|
|
struct ieee80211_tx_info *info,
|
|
struct ieee80211_hdr *hdr, u8 std_id)
|
|
{
|
|
struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
|
|
__le32 tx_flags = tx->tx_flags;
|
|
__le16 fc = hdr->frame_control;
|
|
u8 rc_flags = info->control.rates[0].flags;
|
|
|
|
tx->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
|
|
if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
|
|
tx_flags |= TX_CMD_FLG_ACK_MSK;
|
|
if (ieee80211_is_mgmt(fc))
|
|
tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
|
|
if (ieee80211_is_probe_resp(fc) &&
|
|
!(le16_to_cpu(hdr->seq_ctrl) & 0xf))
|
|
tx_flags |= TX_CMD_FLG_TSF_MSK;
|
|
} else {
|
|
tx_flags &= (~TX_CMD_FLG_ACK_MSK);
|
|
tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
|
|
}
|
|
|
|
tx->sta_id = std_id;
|
|
if (ieee80211_has_morefrags(fc))
|
|
tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
|
|
|
|
if (ieee80211_is_data_qos(fc)) {
|
|
u8 *qc = ieee80211_get_qos_ctl(hdr);
|
|
tx->tid_tspec = qc[0] & 0xf;
|
|
tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
|
|
} else {
|
|
tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
|
|
}
|
|
|
|
if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
|
|
tx_flags |= TX_CMD_FLG_RTS_MSK;
|
|
tx_flags &= ~TX_CMD_FLG_CTS_MSK;
|
|
} else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
|
|
tx_flags &= ~TX_CMD_FLG_RTS_MSK;
|
|
tx_flags |= TX_CMD_FLG_CTS_MSK;
|
|
}
|
|
|
|
if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
|
|
tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
|
|
|
|
tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
|
|
if (ieee80211_is_mgmt(fc)) {
|
|
if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
|
|
tx->timeout.pm_frame_timeout = cpu_to_le16(3);
|
|
else
|
|
tx->timeout.pm_frame_timeout = cpu_to_le16(2);
|
|
} else {
|
|
tx->timeout.pm_frame_timeout = 0;
|
|
#ifdef CONFIG_IWLWIFI_LEDS
|
|
priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len);
|
|
#endif
|
|
}
|
|
|
|
tx->driver_txop = 0;
|
|
tx->tx_flags = tx_flags;
|
|
tx->next_frame_len = 0;
|
|
}
|
|
|
|
/**
|
|
* iwl3945_get_sta_id - Find station's index within station table
|
|
*/
|
|
static int iwl3945_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
|
|
{
|
|
int sta_id;
|
|
u16 fc = le16_to_cpu(hdr->frame_control);
|
|
|
|
/* If this frame is broadcast or management, use broadcast station id */
|
|
if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
|
|
is_multicast_ether_addr(hdr->addr1))
|
|
return priv->hw_params.bcast_sta_id;
|
|
|
|
switch (priv->iw_mode) {
|
|
|
|
/* If we are a client station in a BSS network, use the special
|
|
* AP station entry (that's the only station we communicate with) */
|
|
case NL80211_IFTYPE_STATION:
|
|
return IWL_AP_ID;
|
|
|
|
/* If we are an AP, then find the station, or use BCAST */
|
|
case NL80211_IFTYPE_AP:
|
|
sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
|
|
if (sta_id != IWL_INVALID_STATION)
|
|
return sta_id;
|
|
return priv->hw_params.bcast_sta_id;
|
|
|
|
/* If this frame is going out to an IBSS network, find the station,
|
|
* or create a new station table entry */
|
|
case NL80211_IFTYPE_ADHOC: {
|
|
/* Create new station table entry */
|
|
sta_id = iwl3945_hw_find_station(priv, hdr->addr1);
|
|
if (sta_id != IWL_INVALID_STATION)
|
|
return sta_id;
|
|
|
|
sta_id = iwl3945_add_station(priv, hdr->addr1, 0, CMD_ASYNC);
|
|
|
|
if (sta_id != IWL_INVALID_STATION)
|
|
return sta_id;
|
|
|
|
IWL_DEBUG_DROP(priv, "Station %pM not in station map. "
|
|
"Defaulting to broadcast...\n",
|
|
hdr->addr1);
|
|
iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
|
|
return priv->hw_params.bcast_sta_id;
|
|
}
|
|
/* If we are in monitor mode, use BCAST. This is required for
|
|
* packet injection. */
|
|
case NL80211_IFTYPE_MONITOR:
|
|
return priv->hw_params.bcast_sta_id;
|
|
|
|
default:
|
|
IWL_WARN(priv, "Unknown mode of operation: %d\n",
|
|
priv->iw_mode);
|
|
return priv->hw_params.bcast_sta_id;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* start REPLY_TX command process
|
|
*/
|
|
static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
|
|
{
|
|
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
|
|
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
|
|
struct iwl3945_tx_cmd *tx;
|
|
struct iwl_tx_queue *txq = NULL;
|
|
struct iwl_queue *q = NULL;
|
|
struct iwl_cmd *out_cmd = NULL;
|
|
dma_addr_t phys_addr;
|
|
dma_addr_t txcmd_phys;
|
|
int txq_id = skb_get_queue_mapping(skb);
|
|
u16 len, idx, len_org, hdr_len; /* TODO: len_org is not used */
|
|
u8 id;
|
|
u8 unicast;
|
|
u8 sta_id;
|
|
u8 tid = 0;
|
|
u16 seq_number = 0;
|
|
__le16 fc;
|
|
u8 wait_write_ptr = 0;
|
|
u8 *qc = NULL;
|
|
unsigned long flags;
|
|
int rc;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
if (iwl_is_rfkill(priv)) {
|
|
IWL_DEBUG_DROP(priv, "Dropping - RF KILL\n");
|
|
goto drop_unlock;
|
|
}
|
|
|
|
if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) {
|
|
IWL_ERR(priv, "ERROR: No TX rate available.\n");
|
|
goto drop_unlock;
|
|
}
|
|
|
|
unicast = !is_multicast_ether_addr(hdr->addr1);
|
|
id = 0;
|
|
|
|
fc = hdr->frame_control;
|
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
if (ieee80211_is_auth(fc))
|
|
IWL_DEBUG_TX(priv, "Sending AUTH frame\n");
|
|
else if (ieee80211_is_assoc_req(fc))
|
|
IWL_DEBUG_TX(priv, "Sending ASSOC frame\n");
|
|
else if (ieee80211_is_reassoc_req(fc))
|
|
IWL_DEBUG_TX(priv, "Sending REASSOC frame\n");
|
|
#endif
|
|
|
|
/* drop all data frame if we are not associated */
|
|
if (ieee80211_is_data(fc) &&
|
|
(priv->iw_mode != NL80211_IFTYPE_MONITOR) && /* packet injection */
|
|
(!iwl_is_associated(priv) ||
|
|
((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) {
|
|
IWL_DEBUG_DROP(priv, "Dropping - !iwl_is_associated\n");
|
|
goto drop_unlock;
|
|
}
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
hdr_len = ieee80211_hdrlen(fc);
|
|
|
|
/* Find (or create) index into station table for destination station */
|
|
sta_id = iwl3945_get_sta_id(priv, hdr);
|
|
if (sta_id == IWL_INVALID_STATION) {
|
|
IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
|
|
hdr->addr1);
|
|
goto drop;
|
|
}
|
|
|
|
IWL_DEBUG_RATE(priv, "station Id %d\n", sta_id);
|
|
|
|
if (ieee80211_is_data_qos(fc)) {
|
|
qc = ieee80211_get_qos_ctl(hdr);
|
|
tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
|
|
seq_number = priv->stations_39[sta_id].tid[tid].seq_number &
|
|
IEEE80211_SCTL_SEQ;
|
|
hdr->seq_ctrl = cpu_to_le16(seq_number) |
|
|
(hdr->seq_ctrl &
|
|
cpu_to_le16(IEEE80211_SCTL_FRAG));
|
|
seq_number += 0x10;
|
|
}
|
|
|
|
/* Descriptor for chosen Tx queue */
|
|
txq = &priv->txq[txq_id];
|
|
q = &txq->q;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
idx = get_cmd_index(q, q->write_ptr, 0);
|
|
|
|
/* Set up driver data for this TFD */
|
|
memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
|
|
txq->txb[q->write_ptr].skb[0] = skb;
|
|
|
|
/* Init first empty entry in queue's array of Tx/cmd buffers */
|
|
out_cmd = txq->cmd[idx];
|
|
tx = (struct iwl3945_tx_cmd *)out_cmd->cmd.payload;
|
|
memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
|
|
memset(tx, 0, sizeof(*tx));
|
|
|
|
/*
|
|
* Set up the Tx-command (not MAC!) header.
|
|
* Store the chosen Tx queue and TFD index within the sequence field;
|
|
* after Tx, uCode's Tx response will return this value so driver can
|
|
* locate the frame within the tx queue and do post-tx processing.
|
|
*/
|
|
out_cmd->hdr.cmd = REPLY_TX;
|
|
out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
|
|
INDEX_TO_SEQ(q->write_ptr)));
|
|
|
|
/* Copy MAC header from skb into command buffer */
|
|
memcpy(tx->hdr, hdr, hdr_len);
|
|
|
|
|
|
if (info->control.hw_key)
|
|
iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, sta_id);
|
|
|
|
/* TODO need this for burst mode later on */
|
|
iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, sta_id);
|
|
|
|
/* set is_hcca to 0; it probably will never be implemented */
|
|
iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0);
|
|
|
|
/* Total # bytes to be transmitted */
|
|
len = (u16)skb->len;
|
|
tx->len = cpu_to_le16(len);
|
|
|
|
|
|
tx->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
|
|
tx->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
|
|
|
|
if (!ieee80211_has_morefrags(hdr->frame_control)) {
|
|
txq->need_update = 1;
|
|
if (qc)
|
|
priv->stations_39[sta_id].tid[tid].seq_number = seq_number;
|
|
} else {
|
|
wait_write_ptr = 1;
|
|
txq->need_update = 0;
|
|
}
|
|
|
|
IWL_DEBUG_TX(priv, "sequence nr = 0X%x \n",
|
|
le16_to_cpu(out_cmd->hdr.sequence));
|
|
IWL_DEBUG_TX(priv, "tx_flags = 0X%x \n", le32_to_cpu(tx->tx_flags));
|
|
iwl_print_hex_dump(priv, IWL_DL_TX, tx, sizeof(*tx));
|
|
iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx->hdr,
|
|
ieee80211_hdrlen(fc));
|
|
|
|
/*
|
|
* Use the first empty entry in this queue's command buffer array
|
|
* to contain the Tx command and MAC header concatenated together
|
|
* (payload data will be in another buffer).
|
|
* Size of this varies, due to varying MAC header length.
|
|
* If end is not dword aligned, we'll have 2 extra bytes at the end
|
|
* of the MAC header (device reads on dword boundaries).
|
|
* We'll tell device about this padding later.
|
|
*/
|
|
len = sizeof(struct iwl3945_tx_cmd) +
|
|
sizeof(struct iwl_cmd_header) + hdr_len;
|
|
|
|
len_org = len;
|
|
len = (len + 3) & ~3;
|
|
|
|
if (len_org != len)
|
|
len_org = 1;
|
|
else
|
|
len_org = 0;
|
|
|
|
/* Physical address of this Tx command's header (not MAC header!),
|
|
* within command buffer array. */
|
|
txcmd_phys = pci_map_single(priv->pci_dev, &out_cmd->hdr,
|
|
len, PCI_DMA_TODEVICE);
|
|
/* we do not map meta data ... so we can safely access address to
|
|
* provide to unmap command*/
|
|
pci_unmap_addr_set(&out_cmd->meta, mapping, txcmd_phys);
|
|
pci_unmap_len_set(&out_cmd->meta, len, len);
|
|
|
|
/* Add buffer containing Tx command and MAC(!) header to TFD's
|
|
* first entry */
|
|
priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
|
|
txcmd_phys, len, 1, 0);
|
|
|
|
|
|
/* Set up TFD's 2nd entry to point directly to remainder of skb,
|
|
* if any (802.11 null frames have no payload). */
|
|
len = skb->len - hdr_len;
|
|
if (len) {
|
|
phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
|
|
len, PCI_DMA_TODEVICE);
|
|
priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
|
|
phys_addr, len,
|
|
0, U32_PAD(len));
|
|
}
|
|
|
|
|
|
/* Tell device the write index *just past* this latest filled TFD */
|
|
q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
|
|
rc = iwl_txq_update_write_ptr(priv, txq);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
if (rc)
|
|
return rc;
|
|
|
|
if ((iwl_queue_space(q) < q->high_mark)
|
|
&& priv->mac80211_registered) {
|
|
if (wait_write_ptr) {
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
txq->need_update = 1;
|
|
iwl_txq_update_write_ptr(priv, txq);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
}
|
|
|
|
iwl_stop_queue(priv, skb_get_queue_mapping(skb));
|
|
}
|
|
|
|
return 0;
|
|
|
|
drop_unlock:
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
drop:
|
|
return -1;
|
|
}
|
|
|
|
#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
|
|
|
|
#include "iwl-spectrum.h"
|
|
|
|
#define BEACON_TIME_MASK_LOW 0x00FFFFFF
|
|
#define BEACON_TIME_MASK_HIGH 0xFF000000
|
|
#define TIME_UNIT 1024
|
|
|
|
/*
|
|
* extended beacon time format
|
|
* time in usec will be changed into a 32-bit value in 8:24 format
|
|
* the high 1 byte is the beacon counts
|
|
* the lower 3 bytes is the time in usec within one beacon interval
|
|
*/
|
|
|
|
static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval)
|
|
{
|
|
u32 quot;
|
|
u32 rem;
|
|
u32 interval = beacon_interval * 1024;
|
|
|
|
if (!interval || !usec)
|
|
return 0;
|
|
|
|
quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
|
|
rem = (usec % interval) & BEACON_TIME_MASK_LOW;
|
|
|
|
return (quot << 24) + rem;
|
|
}
|
|
|
|
/* base is usually what we get from ucode with each received frame,
|
|
* the same as HW timer counter counting down
|
|
*/
|
|
|
|
static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
|
|
{
|
|
u32 base_low = base & BEACON_TIME_MASK_LOW;
|
|
u32 addon_low = addon & BEACON_TIME_MASK_LOW;
|
|
u32 interval = beacon_interval * TIME_UNIT;
|
|
u32 res = (base & BEACON_TIME_MASK_HIGH) +
|
|
(addon & BEACON_TIME_MASK_HIGH);
|
|
|
|
if (base_low > addon_low)
|
|
res += base_low - addon_low;
|
|
else if (base_low < addon_low) {
|
|
res += interval + base_low - addon_low;
|
|
res += (1 << 24);
|
|
} else
|
|
res += (1 << 24);
|
|
|
|
return cpu_to_le32(res);
|
|
}
|
|
|
|
static int iwl3945_get_measurement(struct iwl_priv *priv,
|
|
struct ieee80211_measurement_params *params,
|
|
u8 type)
|
|
{
|
|
struct iwl_spectrum_cmd spectrum;
|
|
struct iwl_rx_packet *res;
|
|
struct iwl_host_cmd cmd = {
|
|
.id = REPLY_SPECTRUM_MEASUREMENT_CMD,
|
|
.data = (void *)&spectrum,
|
|
.meta.flags = CMD_WANT_SKB,
|
|
};
|
|
u32 add_time = le64_to_cpu(params->start_time);
|
|
int rc;
|
|
int spectrum_resp_status;
|
|
int duration = le16_to_cpu(params->duration);
|
|
|
|
if (iwl_is_associated(priv))
|
|
add_time =
|
|
iwl3945_usecs_to_beacons(
|
|
le64_to_cpu(params->start_time) - priv->last_tsf,
|
|
le16_to_cpu(priv->rxon_timing.beacon_interval));
|
|
|
|
memset(&spectrum, 0, sizeof(spectrum));
|
|
|
|
spectrum.channel_count = cpu_to_le16(1);
|
|
spectrum.flags =
|
|
RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
|
|
spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
|
|
cmd.len = sizeof(spectrum);
|
|
spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
|
|
|
|
if (iwl_is_associated(priv))
|
|
spectrum.start_time =
|
|
iwl3945_add_beacon_time(priv->last_beacon_time,
|
|
add_time,
|
|
le16_to_cpu(priv->rxon_timing.beacon_interval));
|
|
else
|
|
spectrum.start_time = 0;
|
|
|
|
spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
|
|
spectrum.channels[0].channel = params->channel;
|
|
spectrum.channels[0].type = type;
|
|
if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
|
|
spectrum.flags |= RXON_FLG_BAND_24G_MSK |
|
|
RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
|
|
|
|
rc = iwl_send_cmd_sync(priv, &cmd);
|
|
if (rc)
|
|
return rc;
|
|
|
|
res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
|
|
if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
|
|
IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n");
|
|
rc = -EIO;
|
|
}
|
|
|
|
spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
|
|
switch (spectrum_resp_status) {
|
|
case 0: /* Command will be handled */
|
|
if (res->u.spectrum.id != 0xff) {
|
|
IWL_DEBUG_INFO(priv, "Replaced existing measurement: %d\n",
|
|
res->u.spectrum.id);
|
|
priv->measurement_status &= ~MEASUREMENT_READY;
|
|
}
|
|
priv->measurement_status |= MEASUREMENT_ACTIVE;
|
|
rc = 0;
|
|
break;
|
|
|
|
case 1: /* Command will not be handled */
|
|
rc = -EAGAIN;
|
|
break;
|
|
}
|
|
|
|
dev_kfree_skb_any(cmd.meta.u.skb);
|
|
|
|
return rc;
|
|
}
|
|
#endif
|
|
|
|
static void iwl3945_rx_reply_alive(struct iwl_priv *priv,
|
|
struct iwl_rx_mem_buffer *rxb)
|
|
{
|
|
struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
|
|
struct iwl_alive_resp *palive;
|
|
struct delayed_work *pwork;
|
|
|
|
palive = &pkt->u.alive_frame;
|
|
|
|
IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision "
|
|
"0x%01X 0x%01X\n",
|
|
palive->is_valid, palive->ver_type,
|
|
palive->ver_subtype);
|
|
|
|
if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
|
|
IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
|
|
memcpy(&priv->card_alive_init, &pkt->u.alive_frame,
|
|
sizeof(struct iwl_alive_resp));
|
|
pwork = &priv->init_alive_start;
|
|
} else {
|
|
IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
|
|
memcpy(&priv->card_alive, &pkt->u.alive_frame,
|
|
sizeof(struct iwl_alive_resp));
|
|
pwork = &priv->alive_start;
|
|
iwl3945_disable_events(priv);
|
|
}
|
|
|
|
/* We delay the ALIVE response by 5ms to
|
|
* give the HW RF Kill time to activate... */
|
|
if (palive->is_valid == UCODE_VALID_OK)
|
|
queue_delayed_work(priv->workqueue, pwork,
|
|
msecs_to_jiffies(5));
|
|
else
|
|
IWL_WARN(priv, "uCode did not respond OK.\n");
|
|
}
|
|
|
|
static void iwl3945_rx_reply_add_sta(struct iwl_priv *priv,
|
|
struct iwl_rx_mem_buffer *rxb)
|
|
{
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
|
|
#endif
|
|
|
|
IWL_DEBUG_RX(priv, "Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
|
|
return;
|
|
}
|
|
|
|
static void iwl3945_bg_beacon_update(struct work_struct *work)
|
|
{
|
|
struct iwl_priv *priv =
|
|
container_of(work, struct iwl_priv, beacon_update);
|
|
struct sk_buff *beacon;
|
|
|
|
/* Pull updated AP beacon from mac80211. will fail if not in AP mode */
|
|
beacon = ieee80211_beacon_get(priv->hw, priv->vif);
|
|
|
|
if (!beacon) {
|
|
IWL_ERR(priv, "update beacon failed\n");
|
|
return;
|
|
}
|
|
|
|
mutex_lock(&priv->mutex);
|
|
/* new beacon skb is allocated every time; dispose previous.*/
|
|
if (priv->ibss_beacon)
|
|
dev_kfree_skb(priv->ibss_beacon);
|
|
|
|
priv->ibss_beacon = beacon;
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
iwl3945_send_beacon_cmd(priv);
|
|
}
|
|
|
|
static void iwl3945_rx_beacon_notif(struct iwl_priv *priv,
|
|
struct iwl_rx_mem_buffer *rxb)
|
|
{
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
|
|
struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status);
|
|
u8 rate = beacon->beacon_notify_hdr.rate;
|
|
|
|
IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d "
|
|
"tsf %d %d rate %d\n",
|
|
le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
|
|
beacon->beacon_notify_hdr.failure_frame,
|
|
le32_to_cpu(beacon->ibss_mgr_status),
|
|
le32_to_cpu(beacon->high_tsf),
|
|
le32_to_cpu(beacon->low_tsf), rate);
|
|
#endif
|
|
|
|
if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
|
|
(!test_bit(STATUS_EXIT_PENDING, &priv->status)))
|
|
queue_work(priv->workqueue, &priv->beacon_update);
|
|
}
|
|
|
|
/* Handle notification from uCode that card's power state is changing
|
|
* due to software, hardware, or critical temperature RFKILL */
|
|
static void iwl3945_rx_card_state_notif(struct iwl_priv *priv,
|
|
struct iwl_rx_mem_buffer *rxb)
|
|
{
|
|
struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
|
|
u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
|
|
unsigned long status = priv->status;
|
|
|
|
IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s\n",
|
|
(flags & HW_CARD_DISABLED) ? "Kill" : "On",
|
|
(flags & SW_CARD_DISABLED) ? "Kill" : "On");
|
|
|
|
iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
|
|
CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
|
|
|
|
if (flags & HW_CARD_DISABLED)
|
|
set_bit(STATUS_RF_KILL_HW, &priv->status);
|
|
else
|
|
clear_bit(STATUS_RF_KILL_HW, &priv->status);
|
|
|
|
|
|
if (flags & SW_CARD_DISABLED)
|
|
set_bit(STATUS_RF_KILL_SW, &priv->status);
|
|
else
|
|
clear_bit(STATUS_RF_KILL_SW, &priv->status);
|
|
|
|
iwl_scan_cancel(priv);
|
|
|
|
if ((test_bit(STATUS_RF_KILL_HW, &status) !=
|
|
test_bit(STATUS_RF_KILL_HW, &priv->status)) ||
|
|
(test_bit(STATUS_RF_KILL_SW, &status) !=
|
|
test_bit(STATUS_RF_KILL_SW, &priv->status)))
|
|
queue_work(priv->workqueue, &priv->rf_kill);
|
|
else
|
|
wake_up_interruptible(&priv->wait_command_queue);
|
|
}
|
|
|
|
/**
|
|
* iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
|
|
*
|
|
* Setup the RX handlers for each of the reply types sent from the uCode
|
|
* to the host.
|
|
*
|
|
* This function chains into the hardware specific files for them to setup
|
|
* any hardware specific handlers as well.
|
|
*/
|
|
static void iwl3945_setup_rx_handlers(struct iwl_priv *priv)
|
|
{
|
|
priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive;
|
|
priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta;
|
|
priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error;
|
|
priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa;
|
|
priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif;
|
|
priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
|
|
iwl_rx_pm_debug_statistics_notif;
|
|
priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif;
|
|
|
|
/*
|
|
* The same handler is used for both the REPLY to a discrete
|
|
* statistics request from the host as well as for the periodic
|
|
* statistics notifications (after received beacons) from the uCode.
|
|
*/
|
|
priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics;
|
|
priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics;
|
|
|
|
iwl_setup_spectrum_handlers(priv);
|
|
iwl_setup_rx_scan_handlers(priv);
|
|
priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif;
|
|
|
|
/* Set up hardware specific Rx handlers */
|
|
iwl3945_hw_rx_handler_setup(priv);
|
|
}
|
|
|
|
/************************** RX-FUNCTIONS ****************************/
|
|
/*
|
|
* Rx theory of operation
|
|
*
|
|
* The host allocates 32 DMA target addresses and passes the host address
|
|
* to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
|
|
* 0 to 31
|
|
*
|
|
* Rx Queue Indexes
|
|
* The host/firmware share two index registers for managing the Rx buffers.
|
|
*
|
|
* The READ index maps to the first position that the firmware may be writing
|
|
* to -- the driver can read up to (but not including) this position and get
|
|
* good data.
|
|
* The READ index is managed by the firmware once the card is enabled.
|
|
*
|
|
* The WRITE index maps to the last position the driver has read from -- the
|
|
* position preceding WRITE is the last slot the firmware can place a packet.
|
|
*
|
|
* The queue is empty (no good data) if WRITE = READ - 1, and is full if
|
|
* WRITE = READ.
|
|
*
|
|
* During initialization, the host sets up the READ queue position to the first
|
|
* INDEX position, and WRITE to the last (READ - 1 wrapped)
|
|
*
|
|
* When the firmware places a packet in a buffer, it will advance the READ index
|
|
* and fire the RX interrupt. The driver can then query the READ index and
|
|
* process as many packets as possible, moving the WRITE index forward as it
|
|
* resets the Rx queue buffers with new memory.
|
|
*
|
|
* The management in the driver is as follows:
|
|
* + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
|
|
* iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
|
|
* to replenish the iwl->rxq->rx_free.
|
|
* + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
|
|
* iwl->rxq is replenished and the READ INDEX is updated (updating the
|
|
* 'processed' and 'read' driver indexes as well)
|
|
* + A received packet is processed and handed to the kernel network stack,
|
|
* detached from the iwl->rxq. The driver 'processed' index is updated.
|
|
* + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
|
|
* list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
|
|
* INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
|
|
* were enough free buffers and RX_STALLED is set it is cleared.
|
|
*
|
|
*
|
|
* Driver sequence:
|
|
*
|
|
* iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
|
|
* iwl3945_rx_queue_restock
|
|
* iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
|
|
* queue, updates firmware pointers, and updates
|
|
* the WRITE index. If insufficient rx_free buffers
|
|
* are available, schedules iwl3945_rx_replenish
|
|
*
|
|
* -- enable interrupts --
|
|
* ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the
|
|
* READ INDEX, detaching the SKB from the pool.
|
|
* Moves the packet buffer from queue to rx_used.
|
|
* Calls iwl3945_rx_queue_restock to refill any empty
|
|
* slots.
|
|
* ...
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
|
|
*/
|
|
static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl_priv *priv,
|
|
dma_addr_t dma_addr)
|
|
{
|
|
return cpu_to_le32((u32)dma_addr);
|
|
}
|
|
|
|
/**
|
|
* iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
|
|
*
|
|
* If there are slots in the RX queue that need to be restocked,
|
|
* and we have free pre-allocated buffers, fill the ranks as much
|
|
* as we can, pulling from rx_free.
|
|
*
|
|
* This moves the 'write' index forward to catch up with 'processed', and
|
|
* also updates the memory address in the firmware to reference the new
|
|
* target buffer.
|
|
*/
|
|
static int iwl3945_rx_queue_restock(struct iwl_priv *priv)
|
|
{
|
|
struct iwl_rx_queue *rxq = &priv->rxq;
|
|
struct list_head *element;
|
|
struct iwl_rx_mem_buffer *rxb;
|
|
unsigned long flags;
|
|
int write, rc;
|
|
|
|
spin_lock_irqsave(&rxq->lock, flags);
|
|
write = rxq->write & ~0x7;
|
|
while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
|
|
/* Get next free Rx buffer, remove from free list */
|
|
element = rxq->rx_free.next;
|
|
rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
|
|
list_del(element);
|
|
|
|
/* Point to Rx buffer via next RBD in circular buffer */
|
|
rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->real_dma_addr);
|
|
rxq->queue[rxq->write] = rxb;
|
|
rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
|
|
rxq->free_count--;
|
|
}
|
|
spin_unlock_irqrestore(&rxq->lock, flags);
|
|
/* If the pre-allocated buffer pool is dropping low, schedule to
|
|
* refill it */
|
|
if (rxq->free_count <= RX_LOW_WATERMARK)
|
|
queue_work(priv->workqueue, &priv->rx_replenish);
|
|
|
|
|
|
/* If we've added more space for the firmware to place data, tell it.
|
|
* Increment device's write pointer in multiples of 8. */
|
|
if ((write != (rxq->write & ~0x7))
|
|
|| (abs(rxq->write - rxq->read) > 7)) {
|
|
spin_lock_irqsave(&rxq->lock, flags);
|
|
rxq->need_update = 1;
|
|
spin_unlock_irqrestore(&rxq->lock, flags);
|
|
rc = iwl_rx_queue_update_write_ptr(priv, rxq);
|
|
if (rc)
|
|
return rc;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
|
|
*
|
|
* When moving to rx_free an SKB is allocated for the slot.
|
|
*
|
|
* Also restock the Rx queue via iwl3945_rx_queue_restock.
|
|
* This is called as a scheduled work item (except for during initialization)
|
|
*/
|
|
static void iwl3945_rx_allocate(struct iwl_priv *priv)
|
|
{
|
|
struct iwl_rx_queue *rxq = &priv->rxq;
|
|
struct list_head *element;
|
|
struct iwl_rx_mem_buffer *rxb;
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&rxq->lock, flags);
|
|
while (!list_empty(&rxq->rx_used)) {
|
|
element = rxq->rx_used.next;
|
|
rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
|
|
|
|
/* Alloc a new receive buffer */
|
|
rxb->skb =
|
|
alloc_skb(priv->hw_params.rx_buf_size,
|
|
__GFP_NOWARN | GFP_ATOMIC);
|
|
if (!rxb->skb) {
|
|
if (net_ratelimit())
|
|
IWL_CRIT(priv, ": Can not allocate SKB buffers\n");
|
|
/* We don't reschedule replenish work here -- we will
|
|
* call the restock method and if it still needs
|
|
* more buffers it will schedule replenish */
|
|
break;
|
|
}
|
|
|
|
/* If radiotap head is required, reserve some headroom here.
|
|
* The physical head count is a variable rx_stats->phy_count.
|
|
* We reserve 4 bytes here. Plus these extra bytes, the
|
|
* headroom of the physical head should be enough for the
|
|
* radiotap head that iwl3945 supported. See iwl3945_rt.
|
|
*/
|
|
skb_reserve(rxb->skb, 4);
|
|
|
|
priv->alloc_rxb_skb++;
|
|
list_del(element);
|
|
|
|
/* Get physical address of RB/SKB */
|
|
rxb->real_dma_addr = pci_map_single(priv->pci_dev,
|
|
rxb->skb->data,
|
|
priv->hw_params.rx_buf_size,
|
|
PCI_DMA_FROMDEVICE);
|
|
list_add_tail(&rxb->list, &rxq->rx_free);
|
|
rxq->free_count++;
|
|
}
|
|
spin_unlock_irqrestore(&rxq->lock, flags);
|
|
}
|
|
|
|
void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
|
|
{
|
|
unsigned long flags;
|
|
int i;
|
|
spin_lock_irqsave(&rxq->lock, flags);
|
|
INIT_LIST_HEAD(&rxq->rx_free);
|
|
INIT_LIST_HEAD(&rxq->rx_used);
|
|
/* Fill the rx_used queue with _all_ of the Rx buffers */
|
|
for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
|
|
/* In the reset function, these buffers may have been allocated
|
|
* to an SKB, so we need to unmap and free potential storage */
|
|
if (rxq->pool[i].skb != NULL) {
|
|
pci_unmap_single(priv->pci_dev,
|
|
rxq->pool[i].real_dma_addr,
|
|
priv->hw_params.rx_buf_size,
|
|
PCI_DMA_FROMDEVICE);
|
|
priv->alloc_rxb_skb--;
|
|
dev_kfree_skb(rxq->pool[i].skb);
|
|
rxq->pool[i].skb = NULL;
|
|
}
|
|
list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
|
|
}
|
|
|
|
/* Set us so that we have processed and used all buffers, but have
|
|
* not restocked the Rx queue with fresh buffers */
|
|
rxq->read = rxq->write = 0;
|
|
rxq->free_count = 0;
|
|
spin_unlock_irqrestore(&rxq->lock, flags);
|
|
}
|
|
|
|
/*
|
|
* this should be called while priv->lock is locked
|
|
*/
|
|
static void __iwl3945_rx_replenish(void *data)
|
|
{
|
|
struct iwl_priv *priv = data;
|
|
|
|
iwl3945_rx_allocate(priv);
|
|
iwl3945_rx_queue_restock(priv);
|
|
}
|
|
|
|
|
|
void iwl3945_rx_replenish(void *data)
|
|
{
|
|
struct iwl_priv *priv = data;
|
|
unsigned long flags;
|
|
|
|
iwl3945_rx_allocate(priv);
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
iwl3945_rx_queue_restock(priv);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
}
|
|
|
|
/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
|
|
* If an SKB has been detached, the POOL needs to have its SKB set to NULL
|
|
* This free routine walks the list of POOL entries and if SKB is set to
|
|
* non NULL it is unmapped and freed
|
|
*/
|
|
static void iwl3945_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
|
|
{
|
|
int i;
|
|
for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
|
|
if (rxq->pool[i].skb != NULL) {
|
|
pci_unmap_single(priv->pci_dev,
|
|
rxq->pool[i].real_dma_addr,
|
|
priv->hw_params.rx_buf_size,
|
|
PCI_DMA_FROMDEVICE);
|
|
dev_kfree_skb(rxq->pool[i].skb);
|
|
}
|
|
}
|
|
|
|
pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
|
|
rxq->dma_addr);
|
|
pci_free_consistent(priv->pci_dev, sizeof(struct iwl_rb_status),
|
|
rxq->rb_stts, rxq->rb_stts_dma);
|
|
rxq->bd = NULL;
|
|
rxq->rb_stts = NULL;
|
|
}
|
|
|
|
|
|
/* Convert linear signal-to-noise ratio into dB */
|
|
static u8 ratio2dB[100] = {
|
|
/* 0 1 2 3 4 5 6 7 8 9 */
|
|
0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
|
|
20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
|
|
26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
|
|
29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
|
|
32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
|
|
34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
|
|
36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
|
|
37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
|
|
38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
|
|
39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
|
|
};
|
|
|
|
/* Calculates a relative dB value from a ratio of linear
|
|
* (i.e. not dB) signal levels.
|
|
* Conversion assumes that levels are voltages (20*log), not powers (10*log). */
|
|
int iwl3945_calc_db_from_ratio(int sig_ratio)
|
|
{
|
|
/* 1000:1 or higher just report as 60 dB */
|
|
if (sig_ratio >= 1000)
|
|
return 60;
|
|
|
|
/* 100:1 or higher, divide by 10 and use table,
|
|
* add 20 dB to make up for divide by 10 */
|
|
if (sig_ratio >= 100)
|
|
return 20 + (int)ratio2dB[sig_ratio/10];
|
|
|
|
/* We shouldn't see this */
|
|
if (sig_ratio < 1)
|
|
return 0;
|
|
|
|
/* Use table for ratios 1:1 - 99:1 */
|
|
return (int)ratio2dB[sig_ratio];
|
|
}
|
|
|
|
#define PERFECT_RSSI (-20) /* dBm */
|
|
#define WORST_RSSI (-95) /* dBm */
|
|
#define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
|
|
|
|
/* Calculate an indication of rx signal quality (a percentage, not dBm!).
|
|
* See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
|
|
* about formulas used below. */
|
|
int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm)
|
|
{
|
|
int sig_qual;
|
|
int degradation = PERFECT_RSSI - rssi_dbm;
|
|
|
|
/* If we get a noise measurement, use signal-to-noise ratio (SNR)
|
|
* as indicator; formula is (signal dbm - noise dbm).
|
|
* SNR at or above 40 is a great signal (100%).
|
|
* Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
|
|
* Weakest usable signal is usually 10 - 15 dB SNR. */
|
|
if (noise_dbm) {
|
|
if (rssi_dbm - noise_dbm >= 40)
|
|
return 100;
|
|
else if (rssi_dbm < noise_dbm)
|
|
return 0;
|
|
sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
|
|
|
|
/* Else use just the signal level.
|
|
* This formula is a least squares fit of data points collected and
|
|
* compared with a reference system that had a percentage (%) display
|
|
* for signal quality. */
|
|
} else
|
|
sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
|
|
(15 * RSSI_RANGE + 62 * degradation)) /
|
|
(RSSI_RANGE * RSSI_RANGE);
|
|
|
|
if (sig_qual > 100)
|
|
sig_qual = 100;
|
|
else if (sig_qual < 1)
|
|
sig_qual = 0;
|
|
|
|
return sig_qual;
|
|
}
|
|
|
|
/**
|
|
* iwl3945_rx_handle - Main entry function for receiving responses from uCode
|
|
*
|
|
* Uses the priv->rx_handlers callback function array to invoke
|
|
* the appropriate handlers, including command responses,
|
|
* frame-received notifications, and other notifications.
|
|
*/
|
|
static void iwl3945_rx_handle(struct iwl_priv *priv)
|
|
{
|
|
struct iwl_rx_mem_buffer *rxb;
|
|
struct iwl_rx_packet *pkt;
|
|
struct iwl_rx_queue *rxq = &priv->rxq;
|
|
u32 r, i;
|
|
int reclaim;
|
|
unsigned long flags;
|
|
u8 fill_rx = 0;
|
|
u32 count = 8;
|
|
|
|
/* uCode's read index (stored in shared DRAM) indicates the last Rx
|
|
* buffer that the driver may process (last buffer filled by ucode). */
|
|
r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
|
|
i = rxq->read;
|
|
|
|
if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2))
|
|
fill_rx = 1;
|
|
/* Rx interrupt, but nothing sent from uCode */
|
|
if (i == r)
|
|
IWL_DEBUG(priv, IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i);
|
|
|
|
while (i != r) {
|
|
rxb = rxq->queue[i];
|
|
|
|
/* If an RXB doesn't have a Rx queue slot associated with it,
|
|
* then a bug has been introduced in the queue refilling
|
|
* routines -- catch it here */
|
|
BUG_ON(rxb == NULL);
|
|
|
|
rxq->queue[i] = NULL;
|
|
|
|
pci_unmap_single(priv->pci_dev, rxb->real_dma_addr,
|
|
priv->hw_params.rx_buf_size,
|
|
PCI_DMA_FROMDEVICE);
|
|
pkt = (struct iwl_rx_packet *)rxb->skb->data;
|
|
|
|
/* Reclaim a command buffer only if this packet is a response
|
|
* to a (driver-originated) command.
|
|
* If the packet (e.g. Rx frame) originated from uCode,
|
|
* there is no command buffer to reclaim.
|
|
* Ucode should set SEQ_RX_FRAME bit if ucode-originated,
|
|
* but apparently a few don't get set; catch them here. */
|
|
reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
|
|
(pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
|
|
(pkt->hdr.cmd != REPLY_TX);
|
|
|
|
/* Based on type of command response or notification,
|
|
* handle those that need handling via function in
|
|
* rx_handlers table. See iwl3945_setup_rx_handlers() */
|
|
if (priv->rx_handlers[pkt->hdr.cmd]) {
|
|
IWL_DEBUG(priv, IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
|
|
"r = %d, i = %d, %s, 0x%02x\n", r, i,
|
|
get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
|
|
priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
|
|
} else {
|
|
/* No handling needed */
|
|
IWL_DEBUG(priv, IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
|
|
"r %d i %d No handler needed for %s, 0x%02x\n",
|
|
r, i, get_cmd_string(pkt->hdr.cmd),
|
|
pkt->hdr.cmd);
|
|
}
|
|
|
|
if (reclaim) {
|
|
/* Invoke any callbacks, transfer the skb to caller, and
|
|
* fire off the (possibly) blocking iwl_send_cmd()
|
|
* as we reclaim the driver command queue */
|
|
if (rxb && rxb->skb)
|
|
iwl_tx_cmd_complete(priv, rxb);
|
|
else
|
|
IWL_WARN(priv, "Claim null rxb?\n");
|
|
}
|
|
|
|
/* For now we just don't re-use anything. We can tweak this
|
|
* later to try and re-use notification packets and SKBs that
|
|
* fail to Rx correctly */
|
|
if (rxb->skb != NULL) {
|
|
priv->alloc_rxb_skb--;
|
|
dev_kfree_skb_any(rxb->skb);
|
|
rxb->skb = NULL;
|
|
}
|
|
|
|
spin_lock_irqsave(&rxq->lock, flags);
|
|
list_add_tail(&rxb->list, &priv->rxq.rx_used);
|
|
spin_unlock_irqrestore(&rxq->lock, flags);
|
|
i = (i + 1) & RX_QUEUE_MASK;
|
|
/* If there are a lot of unused frames,
|
|
* restock the Rx queue so ucode won't assert. */
|
|
if (fill_rx) {
|
|
count++;
|
|
if (count >= 8) {
|
|
priv->rxq.read = i;
|
|
__iwl3945_rx_replenish(priv);
|
|
count = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Backtrack one entry */
|
|
priv->rxq.read = i;
|
|
iwl3945_rx_queue_restock(priv);
|
|
}
|
|
|
|
/* call this function to flush any scheduled tasklet */
|
|
static inline void iwl_synchronize_irq(struct iwl_priv *priv)
|
|
{
|
|
/* wait to make sure we flush pending tasklet*/
|
|
synchronize_irq(priv->pci_dev->irq);
|
|
tasklet_kill(&priv->irq_tasklet);
|
|
}
|
|
|
|
static const char *desc_lookup(int i)
|
|
{
|
|
switch (i) {
|
|
case 1:
|
|
return "FAIL";
|
|
case 2:
|
|
return "BAD_PARAM";
|
|
case 3:
|
|
return "BAD_CHECKSUM";
|
|
case 4:
|
|
return "NMI_INTERRUPT";
|
|
case 5:
|
|
return "SYSASSERT";
|
|
case 6:
|
|
return "FATAL_ERROR";
|
|
}
|
|
|
|
return "UNKNOWN";
|
|
}
|
|
|
|
#define ERROR_START_OFFSET (1 * sizeof(u32))
|
|
#define ERROR_ELEM_SIZE (7 * sizeof(u32))
|
|
|
|
static void iwl3945_dump_nic_error_log(struct iwl_priv *priv)
|
|
{
|
|
u32 i;
|
|
u32 desc, time, count, base, data1;
|
|
u32 blink1, blink2, ilink1, ilink2;
|
|
int rc;
|
|
|
|
base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
|
|
|
|
if (!iwl3945_hw_valid_rtc_data_addr(base)) {
|
|
IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base);
|
|
return;
|
|
}
|
|
|
|
rc = iwl_grab_nic_access(priv);
|
|
if (rc) {
|
|
IWL_WARN(priv, "Can not read from adapter at this time.\n");
|
|
return;
|
|
}
|
|
|
|
count = iwl_read_targ_mem(priv, base);
|
|
|
|
if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
|
|
IWL_ERR(priv, "Start IWL Error Log Dump:\n");
|
|
IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
|
|
priv->status, count);
|
|
}
|
|
|
|
IWL_ERR(priv, "Desc Time asrtPC blink2 "
|
|
"ilink1 nmiPC Line\n");
|
|
for (i = ERROR_START_OFFSET;
|
|
i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET;
|
|
i += ERROR_ELEM_SIZE) {
|
|
desc = iwl_read_targ_mem(priv, base + i);
|
|
time =
|
|
iwl_read_targ_mem(priv, base + i + 1 * sizeof(u32));
|
|
blink1 =
|
|
iwl_read_targ_mem(priv, base + i + 2 * sizeof(u32));
|
|
blink2 =
|
|
iwl_read_targ_mem(priv, base + i + 3 * sizeof(u32));
|
|
ilink1 =
|
|
iwl_read_targ_mem(priv, base + i + 4 * sizeof(u32));
|
|
ilink2 =
|
|
iwl_read_targ_mem(priv, base + i + 5 * sizeof(u32));
|
|
data1 =
|
|
iwl_read_targ_mem(priv, base + i + 6 * sizeof(u32));
|
|
|
|
IWL_ERR(priv,
|
|
"%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
|
|
desc_lookup(desc), desc, time, blink1, blink2,
|
|
ilink1, ilink2, data1);
|
|
}
|
|
|
|
iwl_release_nic_access(priv);
|
|
|
|
}
|
|
|
|
#define EVENT_START_OFFSET (6 * sizeof(u32))
|
|
|
|
/**
|
|
* iwl3945_print_event_log - Dump error event log to syslog
|
|
*
|
|
* NOTE: Must be called with iwl_grab_nic_access() already obtained!
|
|
*/
|
|
static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
|
|
u32 num_events, u32 mode)
|
|
{
|
|
u32 i;
|
|
u32 base; /* SRAM byte address of event log header */
|
|
u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
|
|
u32 ptr; /* SRAM byte address of log data */
|
|
u32 ev, time, data; /* event log data */
|
|
|
|
if (num_events == 0)
|
|
return;
|
|
|
|
base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
|
|
|
|
if (mode == 0)
|
|
event_size = 2 * sizeof(u32);
|
|
else
|
|
event_size = 3 * sizeof(u32);
|
|
|
|
ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
|
|
|
|
/* "time" is actually "data" for mode 0 (no timestamp).
|
|
* place event id # at far right for easier visual parsing. */
|
|
for (i = 0; i < num_events; i++) {
|
|
ev = iwl_read_targ_mem(priv, ptr);
|
|
ptr += sizeof(u32);
|
|
time = iwl_read_targ_mem(priv, ptr);
|
|
ptr += sizeof(u32);
|
|
if (mode == 0) {
|
|
/* data, ev */
|
|
IWL_ERR(priv, "0x%08x\t%04u\n", time, ev);
|
|
} else {
|
|
data = iwl_read_targ_mem(priv, ptr);
|
|
ptr += sizeof(u32);
|
|
IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", time, data, ev);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void iwl3945_dump_nic_event_log(struct iwl_priv *priv)
|
|
{
|
|
int rc;
|
|
u32 base; /* SRAM byte address of event log header */
|
|
u32 capacity; /* event log capacity in # entries */
|
|
u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
|
|
u32 num_wraps; /* # times uCode wrapped to top of log */
|
|
u32 next_entry; /* index of next entry to be written by uCode */
|
|
u32 size; /* # entries that we'll print */
|
|
|
|
base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
|
|
if (!iwl3945_hw_valid_rtc_data_addr(base)) {
|
|
IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
|
|
return;
|
|
}
|
|
|
|
rc = iwl_grab_nic_access(priv);
|
|
if (rc) {
|
|
IWL_WARN(priv, "Can not read from adapter at this time.\n");
|
|
return;
|
|
}
|
|
|
|
/* event log header */
|
|
capacity = iwl_read_targ_mem(priv, base);
|
|
mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
|
|
num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
|
|
next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
|
|
|
|
size = num_wraps ? capacity : next_entry;
|
|
|
|
/* bail out if nothing in log */
|
|
if (size == 0) {
|
|
IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
|
|
iwl_release_nic_access(priv);
|
|
return;
|
|
}
|
|
|
|
IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n",
|
|
size, num_wraps);
|
|
|
|
/* if uCode has wrapped back to top of log, start at the oldest entry,
|
|
* i.e the next one that uCode would fill. */
|
|
if (num_wraps)
|
|
iwl3945_print_event_log(priv, next_entry,
|
|
capacity - next_entry, mode);
|
|
|
|
/* (then/else) start at top of log */
|
|
iwl3945_print_event_log(priv, 0, next_entry, mode);
|
|
|
|
iwl_release_nic_access(priv);
|
|
}
|
|
|
|
static void iwl3945_error_recovery(struct iwl_priv *priv)
|
|
{
|
|
unsigned long flags;
|
|
|
|
memcpy(&priv->staging_rxon, &priv->recovery_rxon,
|
|
sizeof(priv->staging_rxon));
|
|
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
|
|
iwl3945_commit_rxon(priv);
|
|
|
|
iwl3945_add_station(priv, priv->bssid, 1, 0);
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
|
|
priv->error_recovering = 0;
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
}
|
|
|
|
static void iwl3945_irq_tasklet(struct iwl_priv *priv)
|
|
{
|
|
u32 inta, handled = 0;
|
|
u32 inta_fh;
|
|
unsigned long flags;
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
u32 inta_mask;
|
|
#endif
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
/* Ack/clear/reset pending uCode interrupts.
|
|
* Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
|
|
* and will clear only when CSR_FH_INT_STATUS gets cleared. */
|
|
inta = iwl_read32(priv, CSR_INT);
|
|
iwl_write32(priv, CSR_INT, inta);
|
|
|
|
/* Ack/clear/reset pending flow-handler (DMA) interrupts.
|
|
* Any new interrupts that happen after this, either while we're
|
|
* in this tasklet, or later, will show up in next ISR/tasklet. */
|
|
inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
|
|
iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
|
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
if (priv->debug_level & IWL_DL_ISR) {
|
|
/* just for debug */
|
|
inta_mask = iwl_read32(priv, CSR_INT_MASK);
|
|
IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
|
|
inta, inta_mask, inta_fh);
|
|
}
|
|
#endif
|
|
|
|
/* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
|
|
* atomic, make sure that inta covers all the interrupts that
|
|
* we've discovered, even if FH interrupt came in just after
|
|
* reading CSR_INT. */
|
|
if (inta_fh & CSR39_FH_INT_RX_MASK)
|
|
inta |= CSR_INT_BIT_FH_RX;
|
|
if (inta_fh & CSR39_FH_INT_TX_MASK)
|
|
inta |= CSR_INT_BIT_FH_TX;
|
|
|
|
/* Now service all interrupt bits discovered above. */
|
|
if (inta & CSR_INT_BIT_HW_ERR) {
|
|
IWL_ERR(priv, "Microcode HW error detected. Restarting.\n");
|
|
|
|
/* Tell the device to stop sending interrupts */
|
|
iwl_disable_interrupts(priv);
|
|
|
|
iwl_irq_handle_error(priv);
|
|
|
|
handled |= CSR_INT_BIT_HW_ERR;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
return;
|
|
}
|
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
if (priv->debug_level & (IWL_DL_ISR)) {
|
|
/* NIC fires this, but we don't use it, redundant with WAKEUP */
|
|
if (inta & CSR_INT_BIT_SCD)
|
|
IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
|
|
"the frame/frames.\n");
|
|
|
|
/* Alive notification via Rx interrupt will do the real work */
|
|
if (inta & CSR_INT_BIT_ALIVE)
|
|
IWL_DEBUG_ISR(priv, "Alive interrupt\n");
|
|
}
|
|
#endif
|
|
/* Safely ignore these bits for debug checks below */
|
|
inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
|
|
|
|
/* Error detected by uCode */
|
|
if (inta & CSR_INT_BIT_SW_ERR) {
|
|
IWL_ERR(priv, "Microcode SW error detected. "
|
|
"Restarting 0x%X.\n", inta);
|
|
iwl_irq_handle_error(priv);
|
|
handled |= CSR_INT_BIT_SW_ERR;
|
|
}
|
|
|
|
/* uCode wakes up after power-down sleep */
|
|
if (inta & CSR_INT_BIT_WAKEUP) {
|
|
IWL_DEBUG_ISR(priv, "Wakeup interrupt\n");
|
|
iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
|
|
iwl_txq_update_write_ptr(priv, &priv->txq[0]);
|
|
iwl_txq_update_write_ptr(priv, &priv->txq[1]);
|
|
iwl_txq_update_write_ptr(priv, &priv->txq[2]);
|
|
iwl_txq_update_write_ptr(priv, &priv->txq[3]);
|
|
iwl_txq_update_write_ptr(priv, &priv->txq[4]);
|
|
iwl_txq_update_write_ptr(priv, &priv->txq[5]);
|
|
|
|
handled |= CSR_INT_BIT_WAKEUP;
|
|
}
|
|
|
|
/* All uCode command responses, including Tx command responses,
|
|
* Rx "responses" (frame-received notification), and other
|
|
* notifications from uCode come through here*/
|
|
if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
|
|
iwl3945_rx_handle(priv);
|
|
handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
|
|
}
|
|
|
|
if (inta & CSR_INT_BIT_FH_TX) {
|
|
IWL_DEBUG_ISR(priv, "Tx interrupt\n");
|
|
|
|
iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6));
|
|
if (!iwl_grab_nic_access(priv)) {
|
|
iwl_write_direct32(priv, FH39_TCSR_CREDIT
|
|
(FH39_SRVC_CHNL), 0x0);
|
|
iwl_release_nic_access(priv);
|
|
}
|
|
handled |= CSR_INT_BIT_FH_TX;
|
|
}
|
|
|
|
if (inta & ~handled)
|
|
IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
|
|
|
|
if (inta & ~CSR_INI_SET_MASK) {
|
|
IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
|
|
inta & ~CSR_INI_SET_MASK);
|
|
IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh);
|
|
}
|
|
|
|
/* Re-enable all interrupts */
|
|
/* only Re-enable if disabled by irq */
|
|
if (test_bit(STATUS_INT_ENABLED, &priv->status))
|
|
iwl_enable_interrupts(priv);
|
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
if (priv->debug_level & (IWL_DL_ISR)) {
|
|
inta = iwl_read32(priv, CSR_INT);
|
|
inta_mask = iwl_read32(priv, CSR_INT_MASK);
|
|
inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
|
|
IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
|
|
"flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
|
|
}
|
|
#endif
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
}
|
|
|
|
static int iwl3945_get_channels_for_scan(struct iwl_priv *priv,
|
|
enum ieee80211_band band,
|
|
u8 is_active, u8 n_probes,
|
|
struct iwl3945_scan_channel *scan_ch)
|
|
{
|
|
const struct ieee80211_channel *channels = NULL;
|
|
const struct ieee80211_supported_band *sband;
|
|
const struct iwl_channel_info *ch_info;
|
|
u16 passive_dwell = 0;
|
|
u16 active_dwell = 0;
|
|
int added, i;
|
|
|
|
sband = iwl_get_hw_mode(priv, band);
|
|
if (!sband)
|
|
return 0;
|
|
|
|
channels = sband->channels;
|
|
|
|
active_dwell = iwl_get_active_dwell_time(priv, band, n_probes);
|
|
passive_dwell = iwl_get_passive_dwell_time(priv, band);
|
|
|
|
if (passive_dwell <= active_dwell)
|
|
passive_dwell = active_dwell + 1;
|
|
|
|
for (i = 0, added = 0; i < sband->n_channels; i++) {
|
|
if (channels[i].flags & IEEE80211_CHAN_DISABLED)
|
|
continue;
|
|
|
|
scan_ch->channel = channels[i].hw_value;
|
|
|
|
ch_info = iwl_get_channel_info(priv, band, scan_ch->channel);
|
|
if (!is_channel_valid(ch_info)) {
|
|
IWL_DEBUG_SCAN(priv, "Channel %d is INVALID for this band.\n",
|
|
scan_ch->channel);
|
|
continue;
|
|
}
|
|
|
|
scan_ch->active_dwell = cpu_to_le16(active_dwell);
|
|
scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
|
|
/* If passive , set up for auto-switch
|
|
* and use long active_dwell time.
|
|
*/
|
|
if (!is_active || is_channel_passive(ch_info) ||
|
|
(channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) {
|
|
scan_ch->type = 0; /* passive */
|
|
if (IWL_UCODE_API(priv->ucode_ver) == 1)
|
|
scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1);
|
|
} else {
|
|
scan_ch->type = 1; /* active */
|
|
}
|
|
|
|
/* Set direct probe bits. These may be used both for active
|
|
* scan channels (probes gets sent right away),
|
|
* or for passive channels (probes get se sent only after
|
|
* hearing clear Rx packet).*/
|
|
if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
|
|
if (n_probes)
|
|
scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes);
|
|
} else {
|
|
/* uCode v1 does not allow setting direct probe bits on
|
|
* passive channel. */
|
|
if ((scan_ch->type & 1) && n_probes)
|
|
scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes);
|
|
}
|
|
|
|
/* Set txpower levels to defaults */
|
|
scan_ch->tpc.dsp_atten = 110;
|
|
/* scan_pwr_info->tpc.dsp_atten; */
|
|
|
|
/*scan_pwr_info->tpc.tx_gain; */
|
|
if (band == IEEE80211_BAND_5GHZ)
|
|
scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
|
|
else {
|
|
scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
|
|
/* NOTE: if we were doing 6Mb OFDM for scans we'd use
|
|
* power level:
|
|
* scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
|
|
*/
|
|
}
|
|
|
|
IWL_DEBUG_SCAN(priv, "Scanning %d [%s %d]\n",
|
|
scan_ch->channel,
|
|
(scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
|
|
(scan_ch->type & 1) ?
|
|
active_dwell : passive_dwell);
|
|
|
|
scan_ch++;
|
|
added++;
|
|
}
|
|
|
|
IWL_DEBUG_SCAN(priv, "total channels to scan %d \n", added);
|
|
return added;
|
|
}
|
|
|
|
static void iwl3945_init_hw_rates(struct iwl_priv *priv,
|
|
struct ieee80211_rate *rates)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < IWL_RATE_COUNT; i++) {
|
|
rates[i].bitrate = iwl3945_rates[i].ieee * 5;
|
|
rates[i].hw_value = i; /* Rate scaling will work on indexes */
|
|
rates[i].hw_value_short = i;
|
|
rates[i].flags = 0;
|
|
if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
|
|
/*
|
|
* If CCK != 1M then set short preamble rate flag.
|
|
*/
|
|
rates[i].flags |= (iwl3945_rates[i].plcp == 10) ?
|
|
0 : IEEE80211_RATE_SHORT_PREAMBLE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/******************************************************************************
|
|
*
|
|
* uCode download functions
|
|
*
|
|
******************************************************************************/
|
|
|
|
static void iwl3945_dealloc_ucode_pci(struct iwl_priv *priv)
|
|
{
|
|
iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
|
|
iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
|
|
iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
|
|
iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
|
|
iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
|
|
iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
|
|
}
|
|
|
|
/**
|
|
* iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
|
|
* looking at all data.
|
|
*/
|
|
static int iwl3945_verify_inst_full(struct iwl_priv *priv, __le32 *image, u32 len)
|
|
{
|
|
u32 val;
|
|
u32 save_len = len;
|
|
int rc = 0;
|
|
u32 errcnt;
|
|
|
|
IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
|
|
|
|
rc = iwl_grab_nic_access(priv);
|
|
if (rc)
|
|
return rc;
|
|
|
|
iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
|
|
IWL39_RTC_INST_LOWER_BOUND);
|
|
|
|
errcnt = 0;
|
|
for (; len > 0; len -= sizeof(u32), image++) {
|
|
/* read data comes through single port, auto-incr addr */
|
|
/* NOTE: Use the debugless read so we don't flood kernel log
|
|
* if IWL_DL_IO is set */
|
|
val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
|
|
if (val != le32_to_cpu(*image)) {
|
|
IWL_ERR(priv, "uCode INST section is invalid at "
|
|
"offset 0x%x, is 0x%x, s/b 0x%x\n",
|
|
save_len - len, val, le32_to_cpu(*image));
|
|
rc = -EIO;
|
|
errcnt++;
|
|
if (errcnt >= 20)
|
|
break;
|
|
}
|
|
}
|
|
|
|
iwl_release_nic_access(priv);
|
|
|
|
if (!errcnt)
|
|
IWL_DEBUG_INFO(priv,
|
|
"ucode image in INSTRUCTION memory is good\n");
|
|
|
|
return rc;
|
|
}
|
|
|
|
|
|
/**
|
|
* iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
|
|
* using sample data 100 bytes apart. If these sample points are good,
|
|
* it's a pretty good bet that everything between them is good, too.
|
|
*/
|
|
static int iwl3945_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
|
|
{
|
|
u32 val;
|
|
int rc = 0;
|
|
u32 errcnt = 0;
|
|
u32 i;
|
|
|
|
IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
|
|
|
|
rc = iwl_grab_nic_access(priv);
|
|
if (rc)
|
|
return rc;
|
|
|
|
for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
|
|
/* read data comes through single port, auto-incr addr */
|
|
/* NOTE: Use the debugless read so we don't flood kernel log
|
|
* if IWL_DL_IO is set */
|
|
iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
|
|
i + IWL39_RTC_INST_LOWER_BOUND);
|
|
val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
|
|
if (val != le32_to_cpu(*image)) {
|
|
#if 0 /* Enable this if you want to see details */
|
|
IWL_ERR(priv, "uCode INST section is invalid at "
|
|
"offset 0x%x, is 0x%x, s/b 0x%x\n",
|
|
i, val, *image);
|
|
#endif
|
|
rc = -EIO;
|
|
errcnt++;
|
|
if (errcnt >= 3)
|
|
break;
|
|
}
|
|
}
|
|
|
|
iwl_release_nic_access(priv);
|
|
|
|
return rc;
|
|
}
|
|
|
|
|
|
/**
|
|
* iwl3945_verify_ucode - determine which instruction image is in SRAM,
|
|
* and verify its contents
|
|
*/
|
|
static int iwl3945_verify_ucode(struct iwl_priv *priv)
|
|
{
|
|
__le32 *image;
|
|
u32 len;
|
|
int rc = 0;
|
|
|
|
/* Try bootstrap */
|
|
image = (__le32 *)priv->ucode_boot.v_addr;
|
|
len = priv->ucode_boot.len;
|
|
rc = iwl3945_verify_inst_sparse(priv, image, len);
|
|
if (rc == 0) {
|
|
IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n");
|
|
return 0;
|
|
}
|
|
|
|
/* Try initialize */
|
|
image = (__le32 *)priv->ucode_init.v_addr;
|
|
len = priv->ucode_init.len;
|
|
rc = iwl3945_verify_inst_sparse(priv, image, len);
|
|
if (rc == 0) {
|
|
IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n");
|
|
return 0;
|
|
}
|
|
|
|
/* Try runtime/protocol */
|
|
image = (__le32 *)priv->ucode_code.v_addr;
|
|
len = priv->ucode_code.len;
|
|
rc = iwl3945_verify_inst_sparse(priv, image, len);
|
|
if (rc == 0) {
|
|
IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n");
|
|
return 0;
|
|
}
|
|
|
|
IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
|
|
|
|
/* Since nothing seems to match, show first several data entries in
|
|
* instruction SRAM, so maybe visual inspection will give a clue.
|
|
* Selection of bootstrap image (vs. other images) is arbitrary. */
|
|
image = (__le32 *)priv->ucode_boot.v_addr;
|
|
len = priv->ucode_boot.len;
|
|
rc = iwl3945_verify_inst_full(priv, image, len);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void iwl3945_nic_start(struct iwl_priv *priv)
|
|
{
|
|
/* Remove all resets to allow NIC to operate */
|
|
iwl_write32(priv, CSR_RESET, 0);
|
|
}
|
|
|
|
/**
|
|
* iwl3945_read_ucode - Read uCode images from disk file.
|
|
*
|
|
* Copy into buffers for card to fetch via bus-mastering
|
|
*/
|
|
static int iwl3945_read_ucode(struct iwl_priv *priv)
|
|
{
|
|
struct iwl_ucode *ucode;
|
|
int ret = -EINVAL, index;
|
|
const struct firmware *ucode_raw;
|
|
/* firmware file name contains uCode/driver compatibility version */
|
|
const char *name_pre = priv->cfg->fw_name_pre;
|
|
const unsigned int api_max = priv->cfg->ucode_api_max;
|
|
const unsigned int api_min = priv->cfg->ucode_api_min;
|
|
char buf[25];
|
|
u8 *src;
|
|
size_t len;
|
|
u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size;
|
|
|
|
/* Ask kernel firmware_class module to get the boot firmware off disk.
|
|
* request_firmware() is synchronous, file is in memory on return. */
|
|
for (index = api_max; index >= api_min; index--) {
|
|
sprintf(buf, "%s%u%s", name_pre, index, ".ucode");
|
|
ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev);
|
|
if (ret < 0) {
|
|
IWL_ERR(priv, "%s firmware file req failed: %d\n",
|
|
buf, ret);
|
|
if (ret == -ENOENT)
|
|
continue;
|
|
else
|
|
goto error;
|
|
} else {
|
|
if (index < api_max)
|
|
IWL_ERR(priv, "Loaded firmware %s, "
|
|
"which is deprecated. "
|
|
" Please use API v%u instead.\n",
|
|
buf, api_max);
|
|
IWL_DEBUG_INFO(priv, "Got firmware '%s' file "
|
|
"(%zd bytes) from disk\n",
|
|
buf, ucode_raw->size);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
/* Make sure that we got at least our header! */
|
|
if (ucode_raw->size < sizeof(*ucode)) {
|
|
IWL_ERR(priv, "File size way too small!\n");
|
|
ret = -EINVAL;
|
|
goto err_release;
|
|
}
|
|
|
|
/* Data from ucode file: header followed by uCode images */
|
|
ucode = (void *)ucode_raw->data;
|
|
|
|
priv->ucode_ver = le32_to_cpu(ucode->ver);
|
|
api_ver = IWL_UCODE_API(priv->ucode_ver);
|
|
inst_size = le32_to_cpu(ucode->inst_size);
|
|
data_size = le32_to_cpu(ucode->data_size);
|
|
init_size = le32_to_cpu(ucode->init_size);
|
|
init_data_size = le32_to_cpu(ucode->init_data_size);
|
|
boot_size = le32_to_cpu(ucode->boot_size);
|
|
|
|
/* api_ver should match the api version forming part of the
|
|
* firmware filename ... but we don't check for that and only rely
|
|
* on the API version read from firmware header from here on forward */
|
|
|
|
if (api_ver < api_min || api_ver > api_max) {
|
|
IWL_ERR(priv, "Driver unable to support your firmware API. "
|
|
"Driver supports v%u, firmware is v%u.\n",
|
|
api_max, api_ver);
|
|
priv->ucode_ver = 0;
|
|
ret = -EINVAL;
|
|
goto err_release;
|
|
}
|
|
if (api_ver != api_max)
|
|
IWL_ERR(priv, "Firmware has old API version. Expected %u, "
|
|
"got %u. New firmware can be obtained "
|
|
"from http://www.intellinuxwireless.org.\n",
|
|
api_max, api_ver);
|
|
|
|
IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n",
|
|
IWL_UCODE_MAJOR(priv->ucode_ver),
|
|
IWL_UCODE_MINOR(priv->ucode_ver),
|
|
IWL_UCODE_API(priv->ucode_ver),
|
|
IWL_UCODE_SERIAL(priv->ucode_ver));
|
|
|
|
IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
|
|
priv->ucode_ver);
|
|
IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n",
|
|
inst_size);
|
|
IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %u\n",
|
|
data_size);
|
|
IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %u\n",
|
|
init_size);
|
|
IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %u\n",
|
|
init_data_size);
|
|
IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n",
|
|
boot_size);
|
|
|
|
|
|
/* Verify size of file vs. image size info in file's header */
|
|
if (ucode_raw->size < sizeof(*ucode) +
|
|
inst_size + data_size + init_size +
|
|
init_data_size + boot_size) {
|
|
|
|
IWL_DEBUG_INFO(priv, "uCode file size %zd too small\n",
|
|
ucode_raw->size);
|
|
ret = -EINVAL;
|
|
goto err_release;
|
|
}
|
|
|
|
/* Verify that uCode images will fit in card's SRAM */
|
|
if (inst_size > IWL39_MAX_INST_SIZE) {
|
|
IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n",
|
|
inst_size);
|
|
ret = -EINVAL;
|
|
goto err_release;
|
|
}
|
|
|
|
if (data_size > IWL39_MAX_DATA_SIZE) {
|
|
IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n",
|
|
data_size);
|
|
ret = -EINVAL;
|
|
goto err_release;
|
|
}
|
|
if (init_size > IWL39_MAX_INST_SIZE) {
|
|
IWL_DEBUG_INFO(priv,
|
|
"uCode init instr len %d too large to fit in\n",
|
|
init_size);
|
|
ret = -EINVAL;
|
|
goto err_release;
|
|
}
|
|
if (init_data_size > IWL39_MAX_DATA_SIZE) {
|
|
IWL_DEBUG_INFO(priv,
|
|
"uCode init data len %d too large to fit in\n",
|
|
init_data_size);
|
|
ret = -EINVAL;
|
|
goto err_release;
|
|
}
|
|
if (boot_size > IWL39_MAX_BSM_SIZE) {
|
|
IWL_DEBUG_INFO(priv,
|
|
"uCode boot instr len %d too large to fit in\n",
|
|
boot_size);
|
|
ret = -EINVAL;
|
|
goto err_release;
|
|
}
|
|
|
|
/* Allocate ucode buffers for card's bus-master loading ... */
|
|
|
|
/* Runtime instructions and 2 copies of data:
|
|
* 1) unmodified from disk
|
|
* 2) backup cache for save/restore during power-downs */
|
|
priv->ucode_code.len = inst_size;
|
|
iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
|
|
|
|
priv->ucode_data.len = data_size;
|
|
iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
|
|
|
|
priv->ucode_data_backup.len = data_size;
|
|
iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
|
|
|
|
if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
|
|
!priv->ucode_data_backup.v_addr)
|
|
goto err_pci_alloc;
|
|
|
|
/* Initialization instructions and data */
|
|
if (init_size && init_data_size) {
|
|
priv->ucode_init.len = init_size;
|
|
iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
|
|
|
|
priv->ucode_init_data.len = init_data_size;
|
|
iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
|
|
|
|
if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
|
|
goto err_pci_alloc;
|
|
}
|
|
|
|
/* Bootstrap (instructions only, no data) */
|
|
if (boot_size) {
|
|
priv->ucode_boot.len = boot_size;
|
|
iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
|
|
|
|
if (!priv->ucode_boot.v_addr)
|
|
goto err_pci_alloc;
|
|
}
|
|
|
|
/* Copy images into buffers for card's bus-master reads ... */
|
|
|
|
/* Runtime instructions (first block of data in file) */
|
|
src = &ucode->data[0];
|
|
len = priv->ucode_code.len;
|
|
IWL_DEBUG_INFO(priv,
|
|
"Copying (but not loading) uCode instr len %zd\n", len);
|
|
memcpy(priv->ucode_code.v_addr, src, len);
|
|
IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
|
|
priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
|
|
|
|
/* Runtime data (2nd block)
|
|
* NOTE: Copy into backup buffer will be done in iwl3945_up() */
|
|
src = &ucode->data[inst_size];
|
|
len = priv->ucode_data.len;
|
|
IWL_DEBUG_INFO(priv,
|
|
"Copying (but not loading) uCode data len %zd\n", len);
|
|
memcpy(priv->ucode_data.v_addr, src, len);
|
|
memcpy(priv->ucode_data_backup.v_addr, src, len);
|
|
|
|
/* Initialization instructions (3rd block) */
|
|
if (init_size) {
|
|
src = &ucode->data[inst_size + data_size];
|
|
len = priv->ucode_init.len;
|
|
IWL_DEBUG_INFO(priv,
|
|
"Copying (but not loading) init instr len %zd\n", len);
|
|
memcpy(priv->ucode_init.v_addr, src, len);
|
|
}
|
|
|
|
/* Initialization data (4th block) */
|
|
if (init_data_size) {
|
|
src = &ucode->data[inst_size + data_size + init_size];
|
|
len = priv->ucode_init_data.len;
|
|
IWL_DEBUG_INFO(priv,
|
|
"Copying (but not loading) init data len %zd\n", len);
|
|
memcpy(priv->ucode_init_data.v_addr, src, len);
|
|
}
|
|
|
|
/* Bootstrap instructions (5th block) */
|
|
src = &ucode->data[inst_size + data_size + init_size + init_data_size];
|
|
len = priv->ucode_boot.len;
|
|
IWL_DEBUG_INFO(priv,
|
|
"Copying (but not loading) boot instr len %zd\n", len);
|
|
memcpy(priv->ucode_boot.v_addr, src, len);
|
|
|
|
/* We have our copies now, allow OS release its copies */
|
|
release_firmware(ucode_raw);
|
|
return 0;
|
|
|
|
err_pci_alloc:
|
|
IWL_ERR(priv, "failed to allocate pci memory\n");
|
|
ret = -ENOMEM;
|
|
iwl3945_dealloc_ucode_pci(priv);
|
|
|
|
err_release:
|
|
release_firmware(ucode_raw);
|
|
|
|
error:
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* iwl3945_set_ucode_ptrs - Set uCode address location
|
|
*
|
|
* Tell initialization uCode where to find runtime uCode.
|
|
*
|
|
* BSM registers initially contain pointers to initialization uCode.
|
|
* We need to replace them to load runtime uCode inst and data,
|
|
* and to save runtime data when powering down.
|
|
*/
|
|
static int iwl3945_set_ucode_ptrs(struct iwl_priv *priv)
|
|
{
|
|
dma_addr_t pinst;
|
|
dma_addr_t pdata;
|
|
int rc = 0;
|
|
unsigned long flags;
|
|
|
|
/* bits 31:0 for 3945 */
|
|
pinst = priv->ucode_code.p_addr;
|
|
pdata = priv->ucode_data_backup.p_addr;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
rc = iwl_grab_nic_access(priv);
|
|
if (rc) {
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
return rc;
|
|
}
|
|
|
|
/* Tell bootstrap uCode where to find image to load */
|
|
iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
|
|
iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
|
|
iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
|
|
priv->ucode_data.len);
|
|
|
|
/* Inst byte count must be last to set up, bit 31 signals uCode
|
|
* that all new ptr/size info is in place */
|
|
iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
|
|
priv->ucode_code.len | BSM_DRAM_INST_LOAD);
|
|
|
|
iwl_release_nic_access(priv);
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
IWL_DEBUG_INFO(priv, "Runtime uCode pointers are set.\n");
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
|
|
*
|
|
* Called after REPLY_ALIVE notification received from "initialize" uCode.
|
|
*
|
|
* Tell "initialize" uCode to go ahead and load the runtime uCode.
|
|
*/
|
|
static void iwl3945_init_alive_start(struct iwl_priv *priv)
|
|
{
|
|
/* Check alive response for "valid" sign from uCode */
|
|
if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
|
|
/* We had an error bringing up the hardware, so take it
|
|
* all the way back down so we can try again */
|
|
IWL_DEBUG_INFO(priv, "Initialize Alive failed.\n");
|
|
goto restart;
|
|
}
|
|
|
|
/* Bootstrap uCode has loaded initialize uCode ... verify inst image.
|
|
* This is a paranoid check, because we would not have gotten the
|
|
* "initialize" alive if code weren't properly loaded. */
|
|
if (iwl3945_verify_ucode(priv)) {
|
|
/* Runtime instruction load was bad;
|
|
* take it all the way back down so we can try again */
|
|
IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n");
|
|
goto restart;
|
|
}
|
|
|
|
/* Send pointers to protocol/runtime uCode image ... init code will
|
|
* load and launch runtime uCode, which will send us another "Alive"
|
|
* notification. */
|
|
IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
|
|
if (iwl3945_set_ucode_ptrs(priv)) {
|
|
/* Runtime instruction load won't happen;
|
|
* take it all the way back down so we can try again */
|
|
IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n");
|
|
goto restart;
|
|
}
|
|
return;
|
|
|
|
restart:
|
|
queue_work(priv->workqueue, &priv->restart);
|
|
}
|
|
|
|
|
|
/* temporary */
|
|
static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw,
|
|
struct sk_buff *skb);
|
|
|
|
/**
|
|
* iwl3945_alive_start - called after REPLY_ALIVE notification received
|
|
* from protocol/runtime uCode (initialization uCode's
|
|
* Alive gets handled by iwl3945_init_alive_start()).
|
|
*/
|
|
static void iwl3945_alive_start(struct iwl_priv *priv)
|
|
{
|
|
int rc = 0;
|
|
int thermal_spin = 0;
|
|
u32 rfkill;
|
|
|
|
IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
|
|
|
|
if (priv->card_alive.is_valid != UCODE_VALID_OK) {
|
|
/* We had an error bringing up the hardware, so take it
|
|
* all the way back down so we can try again */
|
|
IWL_DEBUG_INFO(priv, "Alive failed.\n");
|
|
goto restart;
|
|
}
|
|
|
|
/* Initialize uCode has loaded Runtime uCode ... verify inst image.
|
|
* This is a paranoid check, because we would not have gotten the
|
|
* "runtime" alive if code weren't properly loaded. */
|
|
if (iwl3945_verify_ucode(priv)) {
|
|
/* Runtime instruction load was bad;
|
|
* take it all the way back down so we can try again */
|
|
IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n");
|
|
goto restart;
|
|
}
|
|
|
|
iwl3945_clear_stations_table(priv);
|
|
|
|
rc = iwl_grab_nic_access(priv);
|
|
if (rc) {
|
|
IWL_WARN(priv, "Can not read RFKILL status from adapter\n");
|
|
return;
|
|
}
|
|
|
|
rfkill = iwl_read_prph(priv, APMG_RFKILL_REG);
|
|
IWL_DEBUG_INFO(priv, "RFKILL status: 0x%x\n", rfkill);
|
|
iwl_release_nic_access(priv);
|
|
|
|
if (rfkill & 0x1) {
|
|
clear_bit(STATUS_RF_KILL_HW, &priv->status);
|
|
/* if RFKILL is not on, then wait for thermal
|
|
* sensor in adapter to kick in */
|
|
while (iwl3945_hw_get_temperature(priv) == 0) {
|
|
thermal_spin++;
|
|
udelay(10);
|
|
}
|
|
|
|
if (thermal_spin)
|
|
IWL_DEBUG_INFO(priv, "Thermal calibration took %dus\n",
|
|
thermal_spin * 10);
|
|
} else
|
|
set_bit(STATUS_RF_KILL_HW, &priv->status);
|
|
|
|
/* After the ALIVE response, we can send commands to 3945 uCode */
|
|
set_bit(STATUS_ALIVE, &priv->status);
|
|
|
|
/* Clear out the uCode error bit if it is set */
|
|
clear_bit(STATUS_FW_ERROR, &priv->status);
|
|
|
|
if (iwl_is_rfkill(priv))
|
|
return;
|
|
|
|
ieee80211_wake_queues(priv->hw);
|
|
|
|
priv->active_rate = priv->rates_mask;
|
|
priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
|
|
|
|
iwl_power_update_mode(priv, false);
|
|
|
|
if (iwl_is_associated(priv)) {
|
|
struct iwl3945_rxon_cmd *active_rxon =
|
|
(struct iwl3945_rxon_cmd *)(&priv->active_rxon);
|
|
|
|
memcpy(&priv->staging_rxon, &priv->active_rxon,
|
|
sizeof(priv->staging_rxon));
|
|
active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
|
|
} else {
|
|
/* Initialize our rx_config data */
|
|
iwl_connection_init_rx_config(priv, priv->iw_mode);
|
|
}
|
|
|
|
/* Configure Bluetooth device coexistence support */
|
|
iwl_send_bt_config(priv);
|
|
|
|
/* Configure the adapter for unassociated operation */
|
|
iwl3945_commit_rxon(priv);
|
|
|
|
iwl3945_reg_txpower_periodic(priv);
|
|
|
|
iwl3945_led_register(priv);
|
|
|
|
IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
|
|
set_bit(STATUS_READY, &priv->status);
|
|
wake_up_interruptible(&priv->wait_command_queue);
|
|
|
|
if (priv->error_recovering)
|
|
iwl3945_error_recovery(priv);
|
|
|
|
/* reassociate for ADHOC mode */
|
|
if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) {
|
|
struct sk_buff *beacon = ieee80211_beacon_get(priv->hw,
|
|
priv->vif);
|
|
if (beacon)
|
|
iwl3945_mac_beacon_update(priv->hw, beacon);
|
|
}
|
|
|
|
return;
|
|
|
|
restart:
|
|
queue_work(priv->workqueue, &priv->restart);
|
|
}
|
|
|
|
static void iwl3945_cancel_deferred_work(struct iwl_priv *priv);
|
|
|
|
static void __iwl3945_down(struct iwl_priv *priv)
|
|
{
|
|
unsigned long flags;
|
|
int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
|
|
struct ieee80211_conf *conf = NULL;
|
|
|
|
IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
|
|
|
|
conf = ieee80211_get_hw_conf(priv->hw);
|
|
|
|
if (!exit_pending)
|
|
set_bit(STATUS_EXIT_PENDING, &priv->status);
|
|
|
|
iwl3945_led_unregister(priv);
|
|
iwl3945_clear_stations_table(priv);
|
|
|
|
/* Unblock any waiting calls */
|
|
wake_up_interruptible_all(&priv->wait_command_queue);
|
|
|
|
/* Wipe out the EXIT_PENDING status bit if we are not actually
|
|
* exiting the module */
|
|
if (!exit_pending)
|
|
clear_bit(STATUS_EXIT_PENDING, &priv->status);
|
|
|
|
/* stop and reset the on-board processor */
|
|
iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
|
|
|
|
/* tell the device to stop sending interrupts */
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
iwl_disable_interrupts(priv);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
iwl_synchronize_irq(priv);
|
|
|
|
if (priv->mac80211_registered)
|
|
ieee80211_stop_queues(priv->hw);
|
|
|
|
/* If we have not previously called iwl3945_init() then
|
|
* clear all bits but the RF Kill and SUSPEND bits and return */
|
|
if (!iwl_is_init(priv)) {
|
|
priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
|
|
STATUS_RF_KILL_HW |
|
|
test_bit(STATUS_RF_KILL_SW, &priv->status) <<
|
|
STATUS_RF_KILL_SW |
|
|
test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
|
|
STATUS_GEO_CONFIGURED |
|
|
test_bit(STATUS_IN_SUSPEND, &priv->status) <<
|
|
STATUS_IN_SUSPEND |
|
|
test_bit(STATUS_EXIT_PENDING, &priv->status) <<
|
|
STATUS_EXIT_PENDING;
|
|
goto exit;
|
|
}
|
|
|
|
/* ...otherwise clear out all the status bits but the RF Kill and
|
|
* SUSPEND bits and continue taking the NIC down. */
|
|
priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
|
|
STATUS_RF_KILL_HW |
|
|
test_bit(STATUS_RF_KILL_SW, &priv->status) <<
|
|
STATUS_RF_KILL_SW |
|
|
test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
|
|
STATUS_GEO_CONFIGURED |
|
|
test_bit(STATUS_IN_SUSPEND, &priv->status) <<
|
|
STATUS_IN_SUSPEND |
|
|
test_bit(STATUS_FW_ERROR, &priv->status) <<
|
|
STATUS_FW_ERROR |
|
|
test_bit(STATUS_EXIT_PENDING, &priv->status) <<
|
|
STATUS_EXIT_PENDING;
|
|
|
|
priv->cfg->ops->lib->apm_ops.reset(priv);
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
iwl3945_hw_txq_ctx_stop(priv);
|
|
iwl3945_hw_rxq_stop(priv);
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
if (!iwl_grab_nic_access(priv)) {
|
|
iwl_write_prph(priv, APMG_CLK_DIS_REG,
|
|
APMG_CLK_VAL_DMA_CLK_RQT);
|
|
iwl_release_nic_access(priv);
|
|
}
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
udelay(5);
|
|
|
|
if (exit_pending || test_bit(STATUS_IN_SUSPEND, &priv->status))
|
|
priv->cfg->ops->lib->apm_ops.stop(priv);
|
|
else
|
|
priv->cfg->ops->lib->apm_ops.reset(priv);
|
|
|
|
exit:
|
|
memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
|
|
|
|
if (priv->ibss_beacon)
|
|
dev_kfree_skb(priv->ibss_beacon);
|
|
priv->ibss_beacon = NULL;
|
|
|
|
/* clear out any free frames */
|
|
iwl3945_clear_free_frames(priv);
|
|
}
|
|
|
|
static void iwl3945_down(struct iwl_priv *priv)
|
|
{
|
|
mutex_lock(&priv->mutex);
|
|
__iwl3945_down(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
iwl3945_cancel_deferred_work(priv);
|
|
}
|
|
|
|
#define MAX_HW_RESTARTS 5
|
|
|
|
static int __iwl3945_up(struct iwl_priv *priv)
|
|
{
|
|
int rc, i;
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
|
|
IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
|
|
return -EIO;
|
|
}
|
|
|
|
if (test_bit(STATUS_RF_KILL_SW, &priv->status)) {
|
|
IWL_WARN(priv, "Radio disabled by SW RF kill (module "
|
|
"parameter)\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
|
|
IWL_ERR(priv, "ucode not available for device bring up\n");
|
|
return -EIO;
|
|
}
|
|
|
|
/* If platform's RF_KILL switch is NOT set to KILL */
|
|
if (iwl_read32(priv, CSR_GP_CNTRL) &
|
|
CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
|
|
clear_bit(STATUS_RF_KILL_HW, &priv->status);
|
|
else {
|
|
set_bit(STATUS_RF_KILL_HW, &priv->status);
|
|
if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) {
|
|
IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n");
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
|
|
iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
|
|
|
|
rc = iwl3945_hw_nic_init(priv);
|
|
if (rc) {
|
|
IWL_ERR(priv, "Unable to int nic\n");
|
|
return rc;
|
|
}
|
|
|
|
/* make sure rfkill handshake bits are cleared */
|
|
iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
|
|
iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
|
|
CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
|
|
|
|
/* clear (again), then enable host interrupts */
|
|
iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
|
|
iwl_enable_interrupts(priv);
|
|
|
|
/* really make sure rfkill handshake bits are cleared */
|
|
iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
|
|
iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
|
|
|
|
/* Copy original ucode data image from disk into backup cache.
|
|
* This will be used to initialize the on-board processor's
|
|
* data SRAM for a clean start when the runtime program first loads. */
|
|
memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
|
|
priv->ucode_data.len);
|
|
|
|
/* We return success when we resume from suspend and rf_kill is on. */
|
|
if (test_bit(STATUS_RF_KILL_HW, &priv->status))
|
|
return 0;
|
|
|
|
for (i = 0; i < MAX_HW_RESTARTS; i++) {
|
|
|
|
iwl3945_clear_stations_table(priv);
|
|
|
|
/* load bootstrap state machine,
|
|
* load bootstrap program into processor's memory,
|
|
* prepare to load the "initialize" uCode */
|
|
priv->cfg->ops->lib->load_ucode(priv);
|
|
|
|
if (rc) {
|
|
IWL_ERR(priv,
|
|
"Unable to set up bootstrap uCode: %d\n", rc);
|
|
continue;
|
|
}
|
|
|
|
/* start card; "initialize" will load runtime ucode */
|
|
iwl3945_nic_start(priv);
|
|
|
|
IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
set_bit(STATUS_EXIT_PENDING, &priv->status);
|
|
__iwl3945_down(priv);
|
|
clear_bit(STATUS_EXIT_PENDING, &priv->status);
|
|
|
|
/* tried to restart and config the device for as long as our
|
|
* patience could withstand */
|
|
IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i);
|
|
return -EIO;
|
|
}
|
|
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* Workqueue callbacks
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static void iwl3945_bg_init_alive_start(struct work_struct *data)
|
|
{
|
|
struct iwl_priv *priv =
|
|
container_of(data, struct iwl_priv, init_alive_start.work);
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
|
return;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
iwl3945_init_alive_start(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
static void iwl3945_bg_alive_start(struct work_struct *data)
|
|
{
|
|
struct iwl_priv *priv =
|
|
container_of(data, struct iwl_priv, alive_start.work);
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
|
return;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
iwl3945_alive_start(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
static void iwl3945_rfkill_poll(struct work_struct *data)
|
|
{
|
|
struct iwl_priv *priv =
|
|
container_of(data, struct iwl_priv, rfkill_poll.work);
|
|
unsigned long status = priv->status;
|
|
|
|
if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
|
|
clear_bit(STATUS_RF_KILL_HW, &priv->status);
|
|
else
|
|
set_bit(STATUS_RF_KILL_HW, &priv->status);
|
|
|
|
if (test_bit(STATUS_RF_KILL_HW, &status) != test_bit(STATUS_RF_KILL_HW, &priv->status))
|
|
queue_work(priv->workqueue, &priv->rf_kill);
|
|
|
|
queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
|
|
round_jiffies_relative(2 * HZ));
|
|
|
|
}
|
|
|
|
#define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
|
|
static void iwl3945_bg_request_scan(struct work_struct *data)
|
|
{
|
|
struct iwl_priv *priv =
|
|
container_of(data, struct iwl_priv, request_scan);
|
|
struct iwl_host_cmd cmd = {
|
|
.id = REPLY_SCAN_CMD,
|
|
.len = sizeof(struct iwl3945_scan_cmd),
|
|
.meta.flags = CMD_SIZE_HUGE,
|
|
};
|
|
int rc = 0;
|
|
struct iwl3945_scan_cmd *scan;
|
|
struct ieee80211_conf *conf = NULL;
|
|
u8 n_probes = 2;
|
|
enum ieee80211_band band;
|
|
DECLARE_SSID_BUF(ssid);
|
|
|
|
conf = ieee80211_get_hw_conf(priv->hw);
|
|
|
|
mutex_lock(&priv->mutex);
|
|
|
|
if (!iwl_is_ready(priv)) {
|
|
IWL_WARN(priv, "request scan called when driver not ready.\n");
|
|
goto done;
|
|
}
|
|
|
|
/* Make sure the scan wasn't canceled before this queued work
|
|
* was given the chance to run... */
|
|
if (!test_bit(STATUS_SCANNING, &priv->status))
|
|
goto done;
|
|
|
|
/* This should never be called or scheduled if there is currently
|
|
* a scan active in the hardware. */
|
|
if (test_bit(STATUS_SCAN_HW, &priv->status)) {
|
|
IWL_DEBUG_INFO(priv, "Multiple concurrent scan requests "
|
|
"Ignoring second request.\n");
|
|
rc = -EIO;
|
|
goto done;
|
|
}
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
|
|
IWL_DEBUG_SCAN(priv, "Aborting scan due to device shutdown\n");
|
|
goto done;
|
|
}
|
|
|
|
if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
|
|
IWL_DEBUG_HC(priv,
|
|
"Scan request while abort pending. Queuing.\n");
|
|
goto done;
|
|
}
|
|
|
|
if (iwl_is_rfkill(priv)) {
|
|
IWL_DEBUG_HC(priv, "Aborting scan due to RF Kill activation\n");
|
|
goto done;
|
|
}
|
|
|
|
if (!test_bit(STATUS_READY, &priv->status)) {
|
|
IWL_DEBUG_HC(priv,
|
|
"Scan request while uninitialized. Queuing.\n");
|
|
goto done;
|
|
}
|
|
|
|
if (!priv->scan_bands) {
|
|
IWL_DEBUG_HC(priv, "Aborting scan due to no requested bands\n");
|
|
goto done;
|
|
}
|
|
|
|
if (!priv->scan) {
|
|
priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) +
|
|
IWL_MAX_SCAN_SIZE, GFP_KERNEL);
|
|
if (!priv->scan) {
|
|
rc = -ENOMEM;
|
|
goto done;
|
|
}
|
|
}
|
|
scan = priv->scan;
|
|
memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE);
|
|
|
|
scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
|
|
scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
|
|
|
|
if (iwl_is_associated(priv)) {
|
|
u16 interval = 0;
|
|
u32 extra;
|
|
u32 suspend_time = 100;
|
|
u32 scan_suspend_time = 100;
|
|
unsigned long flags;
|
|
|
|
IWL_DEBUG_INFO(priv, "Scanning while associated...\n");
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
interval = priv->beacon_int;
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
scan->suspend_time = 0;
|
|
scan->max_out_time = cpu_to_le32(200 * 1024);
|
|
if (!interval)
|
|
interval = suspend_time;
|
|
/*
|
|
* suspend time format:
|
|
* 0-19: beacon interval in usec (time before exec.)
|
|
* 20-23: 0
|
|
* 24-31: number of beacons (suspend between channels)
|
|
*/
|
|
|
|
extra = (suspend_time / interval) << 24;
|
|
scan_suspend_time = 0xFF0FFFFF &
|
|
(extra | ((suspend_time % interval) * 1024));
|
|
|
|
scan->suspend_time = cpu_to_le32(scan_suspend_time);
|
|
IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n",
|
|
scan_suspend_time, interval);
|
|
}
|
|
|
|
/* We should add the ability for user to lock to PASSIVE ONLY */
|
|
if (priv->one_direct_scan) {
|
|
IWL_DEBUG_SCAN(priv, "Kicking off one direct scan for '%s'\n",
|
|
print_ssid(ssid, priv->direct_ssid,
|
|
priv->direct_ssid_len));
|
|
scan->direct_scan[0].id = WLAN_EID_SSID;
|
|
scan->direct_scan[0].len = priv->direct_ssid_len;
|
|
memcpy(scan->direct_scan[0].ssid,
|
|
priv->direct_ssid, priv->direct_ssid_len);
|
|
n_probes++;
|
|
} else
|
|
IWL_DEBUG_SCAN(priv, "Kicking off one indirect scan.\n");
|
|
|
|
/* We don't build a direct scan probe request; the uCode will do
|
|
* that based on the direct_mask added to each channel entry */
|
|
scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
|
|
scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id;
|
|
scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
|
|
|
|
/* flags + rate selection */
|
|
|
|
if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) {
|
|
scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
|
|
scan->tx_cmd.rate = IWL_RATE_1M_PLCP;
|
|
scan->good_CRC_th = 0;
|
|
band = IEEE80211_BAND_2GHZ;
|
|
} else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) {
|
|
scan->tx_cmd.rate = IWL_RATE_6M_PLCP;
|
|
scan->good_CRC_th = IWL_GOOD_CRC_TH;
|
|
band = IEEE80211_BAND_5GHZ;
|
|
} else {
|
|
IWL_WARN(priv, "Invalid scan band count\n");
|
|
goto done;
|
|
}
|
|
|
|
scan->tx_cmd.len = cpu_to_le16(
|
|
iwl_fill_probe_req(priv, band,
|
|
(struct ieee80211_mgmt *)scan->data,
|
|
IWL_MAX_SCAN_SIZE - sizeof(*scan)));
|
|
|
|
/* select Rx antennas */
|
|
scan->flags |= iwl3945_get_antenna_flags(priv);
|
|
|
|
if (priv->iw_mode == NL80211_IFTYPE_MONITOR)
|
|
scan->filter_flags = RXON_FILTER_PROMISC_MSK;
|
|
|
|
scan->channel_count =
|
|
iwl3945_get_channels_for_scan(priv, band, 1, /* active */
|
|
n_probes,
|
|
(void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
|
|
|
|
if (scan->channel_count == 0) {
|
|
IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count);
|
|
goto done;
|
|
}
|
|
|
|
cmd.len += le16_to_cpu(scan->tx_cmd.len) +
|
|
scan->channel_count * sizeof(struct iwl3945_scan_channel);
|
|
cmd.data = scan;
|
|
scan->len = cpu_to_le16(cmd.len);
|
|
|
|
set_bit(STATUS_SCAN_HW, &priv->status);
|
|
rc = iwl_send_cmd_sync(priv, &cmd);
|
|
if (rc)
|
|
goto done;
|
|
|
|
queue_delayed_work(priv->workqueue, &priv->scan_check,
|
|
IWL_SCAN_CHECK_WATCHDOG);
|
|
|
|
mutex_unlock(&priv->mutex);
|
|
return;
|
|
|
|
done:
|
|
/* can not perform scan make sure we clear scanning
|
|
* bits from status so next scan request can be performed.
|
|
* if we dont clear scanning status bit here all next scan
|
|
* will fail
|
|
*/
|
|
clear_bit(STATUS_SCAN_HW, &priv->status);
|
|
clear_bit(STATUS_SCANNING, &priv->status);
|
|
|
|
/* inform mac80211 scan aborted */
|
|
queue_work(priv->workqueue, &priv->scan_completed);
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
static void iwl3945_bg_up(struct work_struct *data)
|
|
{
|
|
struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
|
return;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
__iwl3945_up(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
iwl_rfkill_set_hw_state(priv);
|
|
}
|
|
|
|
static void iwl3945_bg_restart(struct work_struct *data)
|
|
{
|
|
struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
|
return;
|
|
|
|
iwl3945_down(priv);
|
|
queue_work(priv->workqueue, &priv->up);
|
|
}
|
|
|
|
static void iwl3945_bg_rx_replenish(struct work_struct *data)
|
|
{
|
|
struct iwl_priv *priv =
|
|
container_of(data, struct iwl_priv, rx_replenish);
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
|
return;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
iwl3945_rx_replenish(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
#define IWL_DELAY_NEXT_SCAN (HZ*2)
|
|
|
|
static void iwl3945_post_associate(struct iwl_priv *priv)
|
|
{
|
|
int rc = 0;
|
|
struct ieee80211_conf *conf = NULL;
|
|
|
|
if (priv->iw_mode == NL80211_IFTYPE_AP) {
|
|
IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__);
|
|
return;
|
|
}
|
|
|
|
|
|
IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n",
|
|
priv->assoc_id, priv->active_rxon.bssid_addr);
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
|
return;
|
|
|
|
if (!priv->vif || !priv->is_open)
|
|
return;
|
|
|
|
iwl_scan_cancel_timeout(priv, 200);
|
|
|
|
conf = ieee80211_get_hw_conf(priv->hw);
|
|
|
|
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
|
|
iwl3945_commit_rxon(priv);
|
|
|
|
memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
|
|
iwl3945_setup_rxon_timing(priv);
|
|
rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
|
|
sizeof(priv->rxon_timing), &priv->rxon_timing);
|
|
if (rc)
|
|
IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
|
|
"Attempting to continue.\n");
|
|
|
|
priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
|
|
|
|
priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
|
|
|
|
IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n",
|
|
priv->assoc_id, priv->beacon_int);
|
|
|
|
if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
|
|
priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
|
|
else
|
|
priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
|
|
|
|
if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
|
|
if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
|
|
priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
|
|
else
|
|
priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
|
|
|
|
if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
|
|
priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
|
|
|
|
}
|
|
|
|
iwl3945_commit_rxon(priv);
|
|
|
|
switch (priv->iw_mode) {
|
|
case NL80211_IFTYPE_STATION:
|
|
iwl3945_rate_scale_init(priv->hw, IWL_AP_ID);
|
|
break;
|
|
|
|
case NL80211_IFTYPE_ADHOC:
|
|
|
|
priv->assoc_id = 1;
|
|
iwl3945_add_station(priv, priv->bssid, 0, 0);
|
|
iwl3945_sync_sta(priv, IWL_STA_ID,
|
|
(priv->band == IEEE80211_BAND_5GHZ) ?
|
|
IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP,
|
|
CMD_ASYNC);
|
|
iwl3945_rate_scale_init(priv->hw, IWL_STA_ID);
|
|
iwl3945_send_beacon_cmd(priv);
|
|
|
|
break;
|
|
|
|
default:
|
|
IWL_ERR(priv, "%s Should not be called in %d mode\n",
|
|
__func__, priv->iw_mode);
|
|
break;
|
|
}
|
|
|
|
iwl_activate_qos(priv, 0);
|
|
|
|
/* we have just associated, don't start scan too early */
|
|
priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
|
|
}
|
|
|
|
static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed);
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* mac80211 entry point functions
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#define UCODE_READY_TIMEOUT (2 * HZ)
|
|
|
|
static int iwl3945_mac_start(struct ieee80211_hw *hw)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
int ret;
|
|
|
|
IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
|
/* we should be verifying the device is ready to be opened */
|
|
mutex_lock(&priv->mutex);
|
|
|
|
memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon));
|
|
/* fetch ucode file from disk, alloc and copy to bus-master buffers ...
|
|
* ucode filename and max sizes are card-specific. */
|
|
|
|
if (!priv->ucode_code.len) {
|
|
ret = iwl3945_read_ucode(priv);
|
|
if (ret) {
|
|
IWL_ERR(priv, "Could not read microcode: %d\n", ret);
|
|
mutex_unlock(&priv->mutex);
|
|
goto out_release_irq;
|
|
}
|
|
}
|
|
|
|
ret = __iwl3945_up(priv);
|
|
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
iwl_rfkill_set_hw_state(priv);
|
|
|
|
if (ret)
|
|
goto out_release_irq;
|
|
|
|
IWL_DEBUG_INFO(priv, "Start UP work.\n");
|
|
|
|
if (test_bit(STATUS_IN_SUSPEND, &priv->status))
|
|
return 0;
|
|
|
|
/* Wait for START_ALIVE from ucode. Otherwise callbacks from
|
|
* mac80211 will not be run successfully. */
|
|
ret = wait_event_interruptible_timeout(priv->wait_command_queue,
|
|
test_bit(STATUS_READY, &priv->status),
|
|
UCODE_READY_TIMEOUT);
|
|
if (!ret) {
|
|
if (!test_bit(STATUS_READY, &priv->status)) {
|
|
IWL_ERR(priv,
|
|
"Wait for START_ALIVE timeout after %dms.\n",
|
|
jiffies_to_msecs(UCODE_READY_TIMEOUT));
|
|
ret = -ETIMEDOUT;
|
|
goto out_release_irq;
|
|
}
|
|
}
|
|
|
|
/* ucode is running and will send rfkill notifications,
|
|
* no need to poll the killswitch state anymore */
|
|
cancel_delayed_work(&priv->rfkill_poll);
|
|
|
|
priv->is_open = 1;
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
return 0;
|
|
|
|
out_release_irq:
|
|
priv->is_open = 0;
|
|
IWL_DEBUG_MAC80211(priv, "leave - failed\n");
|
|
return ret;
|
|
}
|
|
|
|
static void iwl3945_mac_stop(struct ieee80211_hw *hw)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
|
|
IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
|
if (!priv->is_open) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - skip\n");
|
|
return;
|
|
}
|
|
|
|
priv->is_open = 0;
|
|
|
|
if (iwl_is_ready_rf(priv)) {
|
|
/* stop mac, cancel any scan request and clear
|
|
* RXON_FILTER_ASSOC_MSK BIT
|
|
*/
|
|
mutex_lock(&priv->mutex);
|
|
iwl_scan_cancel_timeout(priv, 100);
|
|
mutex_unlock(&priv->mutex);
|
|
}
|
|
|
|
iwl3945_down(priv);
|
|
|
|
flush_workqueue(priv->workqueue);
|
|
|
|
/* start polling the killswitch state again */
|
|
queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
|
|
round_jiffies_relative(2 * HZ));
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
}
|
|
|
|
static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
|
|
IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
|
IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
|
|
ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
|
|
|
|
if (iwl3945_tx_skb(priv, skb))
|
|
dev_kfree_skb_any(skb);
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
static int iwl3945_mac_add_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_if_init_conf *conf)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
unsigned long flags;
|
|
|
|
IWL_DEBUG_MAC80211(priv, "enter: type %d\n", conf->type);
|
|
|
|
if (priv->vif) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
priv->vif = conf->vif;
|
|
priv->iw_mode = conf->type;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
mutex_lock(&priv->mutex);
|
|
|
|
if (conf->mac_addr) {
|
|
IWL_DEBUG_MAC80211(priv, "Set: %pM\n", conf->mac_addr);
|
|
memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
|
|
}
|
|
|
|
if (iwl_is_ready(priv))
|
|
iwl3945_set_mode(priv, conf->type);
|
|
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* iwl3945_mac_config - mac80211 config callback
|
|
*
|
|
* We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to
|
|
* be set inappropriately and the driver currently sets the hardware up to
|
|
* use it whenever needed.
|
|
*/
|
|
static int iwl3945_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;
|
|
unsigned long flags;
|
|
int ret = 0;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
IWL_DEBUG_MAC80211(priv, "enter to channel %d\n",
|
|
conf->channel->hw_value);
|
|
|
|
if (!iwl_is_ready(priv)) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
|
|
ret = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
if (unlikely(!iwl3945_mod_params.disable_hw_scan &&
|
|
test_bit(STATUS_SCANNING, &priv->status))) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - scanning\n");
|
|
set_bit(STATUS_CONF_PENDING, &priv->status);
|
|
mutex_unlock(&priv->mutex);
|
|
return 0;
|
|
}
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
ch_info = iwl_get_channel_info(priv, conf->channel->band,
|
|
conf->channel->hw_value);
|
|
if (!is_channel_valid(ch_info)) {
|
|
IWL_DEBUG_SCAN(priv,
|
|
"Channel %d [%d] is INVALID for this band.\n",
|
|
conf->channel->hw_value, conf->channel->band);
|
|
IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n");
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
iwl_set_rxon_channel(priv, conf->channel);
|
|
|
|
iwl_set_flags_for_band(priv, conf->channel->band);
|
|
|
|
/* The list of supported rates and rate mask can be different
|
|
* for each phymode; since the phymode may have changed, reset
|
|
* the rate mask to what mac80211 lists */
|
|
iwl_set_rate(priv);
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
#ifdef IEEE80211_CONF_CHANNEL_SWITCH
|
|
if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) {
|
|
iwl3945_hw_channel_switch(priv, conf->channel);
|
|
goto out;
|
|
}
|
|
#endif
|
|
|
|
if (changed & IEEE80211_CONF_CHANGE_RADIO_ENABLED) {
|
|
if (conf->radio_enabled &&
|
|
iwl_radio_kill_sw_enable_radio(priv)) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - RF-KILL - "
|
|
"waiting for uCode\n");
|
|
goto out;
|
|
}
|
|
|
|
if (!conf->radio_enabled) {
|
|
iwl_radio_kill_sw_disable_radio(priv);
|
|
IWL_DEBUG_MAC80211(priv, "leave - radio disabled\n");
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
if (iwl_is_rfkill(priv)) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - RF kill\n");
|
|
ret = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
iwl_set_rate(priv);
|
|
|
|
if (memcmp(&priv->active_rxon,
|
|
&priv->staging_rxon, sizeof(priv->staging_rxon)))
|
|
iwl3945_commit_rxon(priv);
|
|
else
|
|
IWL_DEBUG_INFO(priv, "Not re-sending same RXON configuration\n");
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
|
out:
|
|
clear_bit(STATUS_CONF_PENDING, &priv->status);
|
|
mutex_unlock(&priv->mutex);
|
|
return ret;
|
|
}
|
|
|
|
static void iwl3945_config_ap(struct iwl_priv *priv)
|
|
{
|
|
int rc = 0;
|
|
|
|
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
|
|
return;
|
|
|
|
/* The following should be done only at AP bring up */
|
|
if (!(iwl_is_associated(priv))) {
|
|
|
|
/* RXON - unassoc (to set timing command) */
|
|
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
|
|
iwl3945_commit_rxon(priv);
|
|
|
|
/* RXON Timing */
|
|
memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
|
|
iwl3945_setup_rxon_timing(priv);
|
|
rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
|
|
sizeof(priv->rxon_timing),
|
|
&priv->rxon_timing);
|
|
if (rc)
|
|
IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
|
|
"Attempting to continue.\n");
|
|
|
|
/* FIXME: what should be the assoc_id for AP? */
|
|
priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
|
|
if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
|
|
priv->staging_rxon.flags |=
|
|
RXON_FLG_SHORT_PREAMBLE_MSK;
|
|
else
|
|
priv->staging_rxon.flags &=
|
|
~RXON_FLG_SHORT_PREAMBLE_MSK;
|
|
|
|
if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
|
|
if (priv->assoc_capability &
|
|
WLAN_CAPABILITY_SHORT_SLOT_TIME)
|
|
priv->staging_rxon.flags |=
|
|
RXON_FLG_SHORT_SLOT_MSK;
|
|
else
|
|
priv->staging_rxon.flags &=
|
|
~RXON_FLG_SHORT_SLOT_MSK;
|
|
|
|
if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
|
|
priv->staging_rxon.flags &=
|
|
~RXON_FLG_SHORT_SLOT_MSK;
|
|
}
|
|
/* restore RXON assoc */
|
|
priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
|
|
iwl3945_commit_rxon(priv);
|
|
iwl3945_add_station(priv, iwl_bcast_addr, 0, 0);
|
|
}
|
|
iwl3945_send_beacon_cmd(priv);
|
|
|
|
/* FIXME - we need to add code here to detect a totally new
|
|
* configuration, reset the AP, unassoc, rxon timing, assoc,
|
|
* clear sta table, add BCAST sta... */
|
|
}
|
|
|
|
static int iwl3945_mac_config_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_if_conf *conf)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
int rc;
|
|
|
|
if (conf == NULL)
|
|
return -EIO;
|
|
|
|
if (priv->vif != vif) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - priv->vif != vif\n");
|
|
return 0;
|
|
}
|
|
|
|
/* handle this temporarily here */
|
|
if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
|
|
conf->changed & IEEE80211_IFCC_BEACON) {
|
|
struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
|
|
if (!beacon)
|
|
return -ENOMEM;
|
|
mutex_lock(&priv->mutex);
|
|
rc = iwl3945_mac_beacon_update(hw, beacon);
|
|
mutex_unlock(&priv->mutex);
|
|
if (rc)
|
|
return rc;
|
|
}
|
|
|
|
if (!iwl_is_alive(priv))
|
|
return -EAGAIN;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
|
|
if (conf->bssid)
|
|
IWL_DEBUG_MAC80211(priv, "bssid: %pM\n", conf->bssid);
|
|
|
|
/*
|
|
* very dubious code was here; the probe filtering flag is never set:
|
|
*
|
|
if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) &&
|
|
!(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) {
|
|
*/
|
|
|
|
if (priv->iw_mode == NL80211_IFTYPE_AP) {
|
|
if (!conf->bssid) {
|
|
conf->bssid = priv->mac_addr;
|
|
memcpy(priv->bssid, priv->mac_addr, ETH_ALEN);
|
|
IWL_DEBUG_MAC80211(priv, "bssid was set to: %pM\n",
|
|
conf->bssid);
|
|
}
|
|
if (priv->ibss_beacon)
|
|
dev_kfree_skb(priv->ibss_beacon);
|
|
|
|
priv->ibss_beacon = ieee80211_beacon_get(hw, vif);
|
|
}
|
|
|
|
if (iwl_is_rfkill(priv))
|
|
goto done;
|
|
|
|
if (conf->bssid && !is_zero_ether_addr(conf->bssid) &&
|
|
!is_multicast_ether_addr(conf->bssid)) {
|
|
/* If there is currently a HW scan going on in the background
|
|
* then we need to cancel it else the RXON below 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 -EAGAIN;
|
|
}
|
|
memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN);
|
|
|
|
/* TODO: Audit driver for usage of these members and see
|
|
* if mac80211 deprecates them (priv->bssid looks like it
|
|
* shouldn't be there, but I haven't scanned the IBSS code
|
|
* to verify) - jpk */
|
|
memcpy(priv->bssid, conf->bssid, ETH_ALEN);
|
|
|
|
if (priv->iw_mode == NL80211_IFTYPE_AP)
|
|
iwl3945_config_ap(priv);
|
|
else {
|
|
rc = iwl3945_commit_rxon(priv);
|
|
if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc)
|
|
iwl3945_add_station(priv,
|
|
priv->active_rxon.bssid_addr, 1, 0);
|
|
}
|
|
|
|
} else {
|
|
iwl_scan_cancel_timeout(priv, 100);
|
|
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
|
|
iwl3945_commit_rxon(priv);
|
|
}
|
|
|
|
done:
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void iwl3945_mac_remove_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_if_init_conf *conf)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
|
|
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;
|
|
iwl3945_commit_rxon(priv);
|
|
}
|
|
if (priv->vif == conf->vif) {
|
|
priv->vif = NULL;
|
|
memset(priv->bssid, 0, ETH_ALEN);
|
|
}
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
}
|
|
|
|
#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
|
|
|
|
static void iwl3945_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;
|
|
|
|
IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes);
|
|
|
|
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 (changes & BSS_CHANGED_ASSOC) {
|
|
IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc);
|
|
/* This should never happen as this function should
|
|
* never be called from interrupt context. */
|
|
if (WARN_ON_ONCE(in_interrupt()))
|
|
return;
|
|
if (bss_conf->assoc) {
|
|
priv->assoc_id = bss_conf->aid;
|
|
priv->beacon_int = bss_conf->beacon_int;
|
|
priv->timestamp = bss_conf->timestamp;
|
|
priv->assoc_capability = bss_conf->assoc_capability;
|
|
priv->power_data.dtim_period = bss_conf->dtim_period;
|
|
priv->next_scan_jiffies = jiffies +
|
|
IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
|
|
mutex_lock(&priv->mutex);
|
|
iwl3945_post_associate(priv);
|
|
mutex_unlock(&priv->mutex);
|
|
} else {
|
|
priv->assoc_id = 0;
|
|
IWL_DEBUG_MAC80211(priv,
|
|
"DISASSOC %d\n", bss_conf->assoc);
|
|
}
|
|
} else if (changes && iwl_is_associated(priv) && priv->assoc_id) {
|
|
IWL_DEBUG_MAC80211(priv,
|
|
"Associated Changes %d\n", changes);
|
|
iwl3945_send_rxon_assoc(priv);
|
|
}
|
|
|
|
}
|
|
|
|
static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta,
|
|
struct ieee80211_key_conf *key)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
const u8 *addr;
|
|
int ret = 0;
|
|
u8 sta_id = IWL_INVALID_STATION;
|
|
u8 static_key;
|
|
|
|
IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
|
if (iwl3945_mod_params.sw_crypto) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
addr = sta ? sta->addr : iwl_bcast_addr;
|
|
static_key = !iwl_is_associated(priv);
|
|
|
|
if (!static_key) {
|
|
sta_id = iwl3945_hw_find_station(priv, addr);
|
|
if (sta_id == IWL_INVALID_STATION) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n",
|
|
addr);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
mutex_lock(&priv->mutex);
|
|
iwl_scan_cancel_timeout(priv, 100);
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
switch (cmd) {
|
|
case SET_KEY:
|
|
if (static_key)
|
|
ret = iwl3945_set_static_key(priv, key);
|
|
else
|
|
ret = iwl3945_set_dynamic_key(priv, key, sta_id);
|
|
IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
|
|
break;
|
|
case DISABLE_KEY:
|
|
if (static_key)
|
|
ret = iwl3945_remove_static_key(priv);
|
|
else
|
|
ret = iwl3945_clear_sta_key_info(priv, sta_id);
|
|
IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
|
|
break;
|
|
default:
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int iwl3945_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;
|
|
priv->qos_data.qos_active = 1;
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
mutex_lock(&priv->mutex);
|
|
if (priv->iw_mode == NL80211_IFTYPE_AP)
|
|
iwl_activate_qos(priv, 1);
|
|
else if (priv->assoc_id && iwl_is_associated(priv))
|
|
iwl_activate_qos(priv, 0);
|
|
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
return 0;
|
|
}
|
|
|
|
static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw,
|
|
struct ieee80211_tx_queue_stats *stats)
|
|
{
|
|
struct iwl_priv *priv = hw->priv;
|
|
int i, avail;
|
|
struct iwl_tx_queue *txq;
|
|
struct iwl_queue *q;
|
|
unsigned long flags;
|
|
|
|
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);
|
|
|
|
for (i = 0; i < AC_NUM; i++) {
|
|
txq = &priv->txq[i];
|
|
q = &txq->q;
|
|
avail = iwl_queue_space(q);
|
|
|
|
stats[i].len = q->n_window - avail;
|
|
stats[i].limit = q->n_window - q->high_mark;
|
|
stats[i].count = q->n_window;
|
|
|
|
}
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void iwl3945_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");
|
|
|
|
iwl_reset_qos(priv);
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
priv->assoc_id = 0;
|
|
priv->assoc_capability = 0;
|
|
|
|
/* new association get rid of ibss beacon skb */
|
|
if (priv->ibss_beacon)
|
|
dev_kfree_skb(priv->ibss_beacon);
|
|
|
|
priv->ibss_beacon = NULL;
|
|
|
|
priv->beacon_int = priv->hw->conf.beacon_int;
|
|
priv->timestamp = 0;
|
|
if ((priv->iw_mode == NL80211_IFTYPE_STATION))
|
|
priv->beacon_int = 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
|
|
*/
|
|
if (priv->iw_mode != NL80211_IFTYPE_AP) {
|
|
iwl_scan_cancel_timeout(priv, 100);
|
|
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
|
|
iwl3945_commit_rxon(priv);
|
|
}
|
|
|
|
/* Per mac80211.h: This is only used in IBSS mode... */
|
|
if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave - not in IBSS\n");
|
|
mutex_unlock(&priv->mutex);
|
|
return;
|
|
}
|
|
|
|
iwl_set_rate(priv);
|
|
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
|
}
|
|
|
|
static int iwl3945_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;
|
|
}
|
|
|
|
if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
|
|
IWL_DEBUG_MAC80211(priv, "leave - not IBSS\n");
|
|
return -EIO;
|
|
}
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
if (priv->ibss_beacon)
|
|
dev_kfree_skb(priv->ibss_beacon);
|
|
|
|
priv->ibss_beacon = skb;
|
|
|
|
priv->assoc_id = 0;
|
|
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);
|
|
|
|
iwl_reset_qos(priv);
|
|
|
|
iwl3945_post_associate(priv);
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* sysfs attributes
|
|
*
|
|
*****************************************************************************/
|
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
|
|
/*
|
|
* The following adds a new attribute to the sysfs representation
|
|
* of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
|
|
* used for controlling the debug level.
|
|
*
|
|
* See the level definitions in iwl for details.
|
|
*/
|
|
static ssize_t show_debug_level(struct device *d,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwl_priv *priv = d->driver_data;
|
|
|
|
return sprintf(buf, "0x%08X\n", priv->debug_level);
|
|
}
|
|
static ssize_t store_debug_level(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct iwl_priv *priv = d->driver_data;
|
|
unsigned long val;
|
|
int ret;
|
|
|
|
ret = strict_strtoul(buf, 0, &val);
|
|
if (ret)
|
|
IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf);
|
|
else
|
|
priv->debug_level = val;
|
|
|
|
return strnlen(buf, count);
|
|
}
|
|
|
|
static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
|
|
show_debug_level, store_debug_level);
|
|
|
|
#endif /* CONFIG_IWLWIFI_DEBUG */
|
|
|
|
static ssize_t show_temperature(struct device *d,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
|
|
|
|
if (!iwl_is_alive(priv))
|
|
return -EAGAIN;
|
|
|
|
return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv));
|
|
}
|
|
|
|
static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
|
|
|
|
static ssize_t show_tx_power(struct device *d,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
|
|
return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
|
|
}
|
|
|
|
static ssize_t store_tx_power(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
|
|
char *p = (char *)buf;
|
|
u32 val;
|
|
|
|
val = simple_strtoul(p, &p, 10);
|
|
if (p == buf)
|
|
IWL_INFO(priv, ": %s is not in decimal form.\n", buf);
|
|
else
|
|
iwl3945_hw_reg_set_txpower(priv, val);
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
|
|
|
|
static ssize_t show_flags(struct device *d,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
|
|
|
|
return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
|
|
}
|
|
|
|
static ssize_t store_flags(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
|
|
u32 flags = simple_strtoul(buf, NULL, 0);
|
|
|
|
mutex_lock(&priv->mutex);
|
|
if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
|
|
/* Cancel any currently running scans... */
|
|
if (iwl_scan_cancel_timeout(priv, 100))
|
|
IWL_WARN(priv, "Could not cancel scan.\n");
|
|
else {
|
|
IWL_DEBUG_INFO(priv, "Committing rxon.flags = 0x%04X\n",
|
|
flags);
|
|
priv->staging_rxon.flags = cpu_to_le32(flags);
|
|
iwl3945_commit_rxon(priv);
|
|
}
|
|
}
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
|
|
|
|
static ssize_t show_filter_flags(struct device *d,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
|
|
|
|
return sprintf(buf, "0x%04X\n",
|
|
le32_to_cpu(priv->active_rxon.filter_flags));
|
|
}
|
|
|
|
static ssize_t store_filter_flags(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
|
|
u32 filter_flags = simple_strtoul(buf, NULL, 0);
|
|
|
|
mutex_lock(&priv->mutex);
|
|
if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
|
|
/* Cancel any currently running scans... */
|
|
if (iwl_scan_cancel_timeout(priv, 100))
|
|
IWL_WARN(priv, "Could not cancel scan.\n");
|
|
else {
|
|
IWL_DEBUG_INFO(priv, "Committing rxon.filter_flags = "
|
|
"0x%04X\n", filter_flags);
|
|
priv->staging_rxon.filter_flags =
|
|
cpu_to_le32(filter_flags);
|
|
iwl3945_commit_rxon(priv);
|
|
}
|
|
}
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
|
|
store_filter_flags);
|
|
|
|
#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
|
|
|
|
static ssize_t show_measurement(struct device *d,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwl_priv *priv = dev_get_drvdata(d);
|
|
struct iwl_spectrum_notification measure_report;
|
|
u32 size = sizeof(measure_report), len = 0, ofs = 0;
|
|
u8 *data = (u8 *)&measure_report;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
if (!(priv->measurement_status & MEASUREMENT_READY)) {
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
return 0;
|
|
}
|
|
memcpy(&measure_report, &priv->measure_report, size);
|
|
priv->measurement_status = 0;
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
while (size && (PAGE_SIZE - len)) {
|
|
hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
|
|
PAGE_SIZE - len, 1);
|
|
len = strlen(buf);
|
|
if (PAGE_SIZE - len)
|
|
buf[len++] = '\n';
|
|
|
|
ofs += 16;
|
|
size -= min(size, 16U);
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
static ssize_t store_measurement(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct iwl_priv *priv = dev_get_drvdata(d);
|
|
struct ieee80211_measurement_params params = {
|
|
.channel = le16_to_cpu(priv->active_rxon.channel),
|
|
.start_time = cpu_to_le64(priv->last_tsf),
|
|
.duration = cpu_to_le16(1),
|
|
};
|
|
u8 type = IWL_MEASURE_BASIC;
|
|
u8 buffer[32];
|
|
u8 channel;
|
|
|
|
if (count) {
|
|
char *p = buffer;
|
|
strncpy(buffer, buf, min(sizeof(buffer), count));
|
|
channel = simple_strtoul(p, NULL, 0);
|
|
if (channel)
|
|
params.channel = channel;
|
|
|
|
p = buffer;
|
|
while (*p && *p != ' ')
|
|
p++;
|
|
if (*p)
|
|
type = simple_strtoul(p + 1, NULL, 0);
|
|
}
|
|
|
|
IWL_DEBUG_INFO(priv, "Invoking measurement of type %d on "
|
|
"channel %d (for '%s')\n", type, params.channel, buf);
|
|
iwl3945_get_measurement(priv, ¶ms, type);
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
|
|
show_measurement, store_measurement);
|
|
#endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
|
|
|
|
static ssize_t store_retry_rate(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct iwl_priv *priv = dev_get_drvdata(d);
|
|
|
|
priv->retry_rate = simple_strtoul(buf, NULL, 0);
|
|
if (priv->retry_rate <= 0)
|
|
priv->retry_rate = 1;
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_retry_rate(struct device *d,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwl_priv *priv = dev_get_drvdata(d);
|
|
return sprintf(buf, "%d", priv->retry_rate);
|
|
}
|
|
|
|
static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
|
|
store_retry_rate);
|
|
|
|
|
|
static ssize_t store_power_level(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct iwl_priv *priv = dev_get_drvdata(d);
|
|
int ret;
|
|
unsigned long mode;
|
|
|
|
|
|
mutex_lock(&priv->mutex);
|
|
|
|
ret = strict_strtoul(buf, 10, &mode);
|
|
if (ret)
|
|
goto out;
|
|
|
|
ret = iwl_power_set_user_mode(priv, mode);
|
|
if (ret) {
|
|
IWL_DEBUG_MAC80211(priv, "failed setting power mode.\n");
|
|
goto out;
|
|
}
|
|
ret = count;
|
|
|
|
out:
|
|
mutex_unlock(&priv->mutex);
|
|
return ret;
|
|
}
|
|
|
|
static ssize_t show_power_level(struct device *d,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwl_priv *priv = dev_get_drvdata(d);
|
|
int mode = priv->power_data.user_power_setting;
|
|
int system = priv->power_data.system_power_setting;
|
|
int level = priv->power_data.power_mode;
|
|
char *p = buf;
|
|
|
|
switch (system) {
|
|
case IWL_POWER_SYS_AUTO:
|
|
p += sprintf(p, "SYSTEM:auto");
|
|
break;
|
|
case IWL_POWER_SYS_AC:
|
|
p += sprintf(p, "SYSTEM:ac");
|
|
break;
|
|
case IWL_POWER_SYS_BATTERY:
|
|
p += sprintf(p, "SYSTEM:battery");
|
|
break;
|
|
}
|
|
|
|
p += sprintf(p, "\tMODE:%s", (mode < IWL_POWER_AUTO) ?
|
|
"fixed" : "auto");
|
|
p += sprintf(p, "\tINDEX:%d", level);
|
|
p += sprintf(p, "\n");
|
|
return p - buf + 1;
|
|
}
|
|
|
|
static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR,
|
|
show_power_level, store_power_level);
|
|
|
|
#define MAX_WX_STRING 80
|
|
|
|
/* Values are in microsecond */
|
|
static const s32 timeout_duration[] = {
|
|
350000,
|
|
250000,
|
|
75000,
|
|
37000,
|
|
25000,
|
|
};
|
|
static const s32 period_duration[] = {
|
|
400000,
|
|
700000,
|
|
1000000,
|
|
1000000,
|
|
1000000
|
|
};
|
|
|
|
static ssize_t show_channels(struct device *d,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
/* all this shit doesn't belong into sysfs anyway */
|
|
return 0;
|
|
}
|
|
|
|
static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
|
|
|
|
static ssize_t show_statistics(struct device *d,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwl_priv *priv = dev_get_drvdata(d);
|
|
u32 size = sizeof(struct iwl3945_notif_statistics);
|
|
u32 len = 0, ofs = 0;
|
|
u8 *data = (u8 *)&priv->statistics_39;
|
|
int rc = 0;
|
|
|
|
if (!iwl_is_alive(priv))
|
|
return -EAGAIN;
|
|
|
|
mutex_lock(&priv->mutex);
|
|
rc = iwl_send_statistics_request(priv, 0);
|
|
mutex_unlock(&priv->mutex);
|
|
|
|
if (rc) {
|
|
len = sprintf(buf,
|
|
"Error sending statistics request: 0x%08X\n", rc);
|
|
return len;
|
|
}
|
|
|
|
while (size && (PAGE_SIZE - len)) {
|
|
hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
|
|
PAGE_SIZE - len, 1);
|
|
len = strlen(buf);
|
|
if (PAGE_SIZE - len)
|
|
buf[len++] = '\n';
|
|
|
|
ofs += 16;
|
|
size -= min(size, 16U);
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
|
|
|
|
static ssize_t show_antenna(struct device *d,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwl_priv *priv = dev_get_drvdata(d);
|
|
|
|
if (!iwl_is_alive(priv))
|
|
return -EAGAIN;
|
|
|
|
return sprintf(buf, "%d\n", iwl3945_mod_params.antenna);
|
|
}
|
|
|
|
static ssize_t store_antenna(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct iwl_priv *priv __maybe_unused = dev_get_drvdata(d);
|
|
int ant;
|
|
|
|
if (count == 0)
|
|
return 0;
|
|
|
|
if (sscanf(buf, "%1i", &ant) != 1) {
|
|
IWL_DEBUG_INFO(priv, "not in hex or decimal form.\n");
|
|
return count;
|
|
}
|
|
|
|
if ((ant >= 0) && (ant <= 2)) {
|
|
IWL_DEBUG_INFO(priv, "Setting antenna select to %d.\n", ant);
|
|
iwl3945_mod_params.antenna = (enum iwl3945_antenna)ant;
|
|
} else
|
|
IWL_DEBUG_INFO(priv, "Bad antenna select value %d.\n", ant);
|
|
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna);
|
|
|
|
static ssize_t show_status(struct device *d,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct iwl_priv *priv = (struct iwl_priv *)d->driver_data;
|
|
if (!iwl_is_alive(priv))
|
|
return -EAGAIN;
|
|
return sprintf(buf, "0x%08x\n", (int)priv->status);
|
|
}
|
|
|
|
static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
|
|
|
|
static ssize_t dump_error_log(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
char *p = (char *)buf;
|
|
|
|
if (p[0] == '1')
|
|
iwl3945_dump_nic_error_log((struct iwl_priv *)d->driver_data);
|
|
|
|
return strnlen(buf, count);
|
|
}
|
|
|
|
static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
|
|
|
|
static ssize_t dump_event_log(struct device *d,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
char *p = (char *)buf;
|
|
|
|
if (p[0] == '1')
|
|
iwl3945_dump_nic_event_log((struct iwl_priv *)d->driver_data);
|
|
|
|
return strnlen(buf, count);
|
|
}
|
|
|
|
static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* driver setup and tear down
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static void iwl3945_setup_deferred_work(struct iwl_priv *priv)
|
|
{
|
|
priv->workqueue = create_singlethread_workqueue(DRV_NAME);
|
|
|
|
init_waitqueue_head(&priv->wait_command_queue);
|
|
|
|
INIT_WORK(&priv->up, iwl3945_bg_up);
|
|
INIT_WORK(&priv->restart, iwl3945_bg_restart);
|
|
INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish);
|
|
INIT_WORK(&priv->rf_kill, iwl_bg_rf_kill);
|
|
INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update);
|
|
INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start);
|
|
INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start);
|
|
INIT_DELAYED_WORK(&priv->rfkill_poll, iwl3945_rfkill_poll);
|
|
INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed);
|
|
INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan);
|
|
INIT_WORK(&priv->abort_scan, iwl_bg_abort_scan);
|
|
INIT_DELAYED_WORK(&priv->scan_check, iwl_bg_scan_check);
|
|
|
|
iwl3945_hw_setup_deferred_work(priv);
|
|
|
|
tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
|
|
iwl3945_irq_tasklet, (unsigned long)priv);
|
|
}
|
|
|
|
static void iwl3945_cancel_deferred_work(struct iwl_priv *priv)
|
|
{
|
|
iwl3945_hw_cancel_deferred_work(priv);
|
|
|
|
cancel_delayed_work_sync(&priv->init_alive_start);
|
|
cancel_delayed_work(&priv->scan_check);
|
|
cancel_delayed_work(&priv->alive_start);
|
|
cancel_work_sync(&priv->beacon_update);
|
|
}
|
|
|
|
static struct attribute *iwl3945_sysfs_entries[] = {
|
|
&dev_attr_antenna.attr,
|
|
&dev_attr_channels.attr,
|
|
&dev_attr_dump_errors.attr,
|
|
&dev_attr_dump_events.attr,
|
|
&dev_attr_flags.attr,
|
|
&dev_attr_filter_flags.attr,
|
|
#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
|
|
&dev_attr_measurement.attr,
|
|
#endif
|
|
&dev_attr_power_level.attr,
|
|
&dev_attr_retry_rate.attr,
|
|
&dev_attr_statistics.attr,
|
|
&dev_attr_status.attr,
|
|
&dev_attr_temperature.attr,
|
|
&dev_attr_tx_power.attr,
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
&dev_attr_debug_level.attr,
|
|
#endif
|
|
NULL
|
|
};
|
|
|
|
static struct attribute_group iwl3945_attribute_group = {
|
|
.name = NULL, /* put in device directory */
|
|
.attrs = iwl3945_sysfs_entries,
|
|
};
|
|
|
|
static struct ieee80211_ops iwl3945_hw_ops = {
|
|
.tx = iwl3945_mac_tx,
|
|
.start = iwl3945_mac_start,
|
|
.stop = iwl3945_mac_stop,
|
|
.add_interface = iwl3945_mac_add_interface,
|
|
.remove_interface = iwl3945_mac_remove_interface,
|
|
.config = iwl3945_mac_config,
|
|
.config_interface = iwl3945_mac_config_interface,
|
|
.configure_filter = iwl_configure_filter,
|
|
.set_key = iwl3945_mac_set_key,
|
|
.get_tx_stats = iwl3945_mac_get_tx_stats,
|
|
.conf_tx = iwl3945_mac_conf_tx,
|
|
.reset_tsf = iwl3945_mac_reset_tsf,
|
|
.bss_info_changed = iwl3945_bss_info_changed,
|
|
.hw_scan = iwl_mac_hw_scan
|
|
};
|
|
|
|
static int iwl3945_init_drv(struct iwl_priv *priv)
|
|
{
|
|
int ret;
|
|
struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
|
|
|
|
priv->retry_rate = 1;
|
|
priv->ibss_beacon = NULL;
|
|
|
|
spin_lock_init(&priv->lock);
|
|
spin_lock_init(&priv->power_data.lock);
|
|
spin_lock_init(&priv->sta_lock);
|
|
spin_lock_init(&priv->hcmd_lock);
|
|
|
|
INIT_LIST_HEAD(&priv->free_frames);
|
|
|
|
mutex_init(&priv->mutex);
|
|
|
|
/* Clear the driver's (not device's) station table */
|
|
iwl3945_clear_stations_table(priv);
|
|
|
|
priv->data_retry_limit = -1;
|
|
priv->ieee_channels = NULL;
|
|
priv->ieee_rates = NULL;
|
|
priv->band = IEEE80211_BAND_2GHZ;
|
|
|
|
priv->iw_mode = NL80211_IFTYPE_STATION;
|
|
|
|
iwl_reset_qos(priv);
|
|
|
|
priv->qos_data.qos_active = 0;
|
|
priv->qos_data.qos_cap.val = 0;
|
|
|
|
priv->rates_mask = IWL_RATES_MASK;
|
|
/* If power management is turned on, default to CAM mode */
|
|
priv->power_mode = IWL_POWER_MODE_CAM;
|
|
priv->tx_power_user_lmt = IWL_DEFAULT_TX_POWER;
|
|
|
|
if (eeprom->version < EEPROM_3945_EEPROM_VERSION) {
|
|
IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n",
|
|
eeprom->version);
|
|
ret = -EINVAL;
|
|
goto err;
|
|
}
|
|
ret = iwl_init_channel_map(priv);
|
|
if (ret) {
|
|
IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
|
|
goto err;
|
|
}
|
|
|
|
/* Set up txpower settings in driver for all channels */
|
|
if (iwl3945_txpower_set_from_eeprom(priv)) {
|
|
ret = -EIO;
|
|
goto err_free_channel_map;
|
|
}
|
|
|
|
ret = iwlcore_init_geos(priv);
|
|
if (ret) {
|
|
IWL_ERR(priv, "initializing geos failed: %d\n", ret);
|
|
goto err_free_channel_map;
|
|
}
|
|
iwl3945_init_hw_rates(priv, priv->ieee_rates);
|
|
|
|
return 0;
|
|
|
|
err_free_channel_map:
|
|
iwl_free_channel_map(priv);
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
static int iwl3945_setup_mac(struct iwl_priv *priv)
|
|
{
|
|
int ret;
|
|
struct ieee80211_hw *hw = priv->hw;
|
|
|
|
hw->rate_control_algorithm = "iwl-3945-rs";
|
|
hw->sta_data_size = sizeof(struct iwl3945_sta_priv);
|
|
|
|
/* Tell mac80211 our characteristics */
|
|
hw->flags = IEEE80211_HW_SIGNAL_DBM |
|
|
IEEE80211_HW_NOISE_DBM |
|
|
IEEE80211_HW_SPECTRUM_MGMT;
|
|
|
|
hw->wiphy->interface_modes =
|
|
BIT(NL80211_IFTYPE_STATION) |
|
|
BIT(NL80211_IFTYPE_ADHOC);
|
|
|
|
hw->wiphy->custom_regulatory = true;
|
|
|
|
hw->wiphy->max_scan_ssids = 1; /* WILL FIX */
|
|
|
|
/* Default value; 4 EDCA QOS priorities */
|
|
hw->queues = 4;
|
|
|
|
hw->conf.beacon_int = 100;
|
|
|
|
if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
|
|
priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
|
|
&priv->bands[IEEE80211_BAND_2GHZ];
|
|
|
|
if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
|
|
priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
|
|
&priv->bands[IEEE80211_BAND_5GHZ];
|
|
|
|
ret = ieee80211_register_hw(priv->hw);
|
|
if (ret) {
|
|
IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
|
|
return ret;
|
|
}
|
|
priv->mac80211_registered = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
|
|
{
|
|
int err = 0;
|
|
struct iwl_priv *priv;
|
|
struct ieee80211_hw *hw;
|
|
struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
|
|
struct iwl3945_eeprom *eeprom;
|
|
unsigned long flags;
|
|
|
|
/***********************
|
|
* 1. Allocating HW data
|
|
* ********************/
|
|
|
|
/* mac80211 allocates memory for this device instance, including
|
|
* space for this driver's private structure */
|
|
hw = iwl_alloc_all(cfg, &iwl3945_hw_ops);
|
|
if (hw == NULL) {
|
|
printk(KERN_ERR DRV_NAME "Can not allocate network device\n");
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
priv = hw->priv;
|
|
SET_IEEE80211_DEV(hw, &pdev->dev);
|
|
|
|
if ((iwl3945_mod_params.num_of_queues > IWL39_MAX_NUM_QUEUES) ||
|
|
(iwl3945_mod_params.num_of_queues < IWL_MIN_NUM_QUEUES)) {
|
|
IWL_ERR(priv,
|
|
"invalid queues_num, should be between %d and %d\n",
|
|
IWL_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES);
|
|
err = -EINVAL;
|
|
goto out_ieee80211_free_hw;
|
|
}
|
|
|
|
/*
|
|
* Disabling hardware scan means that mac80211 will perform scans
|
|
* "the hard way", rather than using device's scan.
|
|
*/
|
|
if (iwl3945_mod_params.disable_hw_scan) {
|
|
IWL_DEBUG_INFO(priv, "Disabling hw_scan\n");
|
|
iwl3945_hw_ops.hw_scan = NULL;
|
|
}
|
|
|
|
|
|
IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
|
|
priv->cfg = cfg;
|
|
priv->pci_dev = pdev;
|
|
|
|
#ifdef CONFIG_IWLWIFI_DEBUG
|
|
priv->debug_level = iwl3945_mod_params.debug;
|
|
atomic_set(&priv->restrict_refcnt, 0);
|
|
#endif
|
|
|
|
/***************************
|
|
* 2. Initializing PCI bus
|
|
* *************************/
|
|
if (pci_enable_device(pdev)) {
|
|
err = -ENODEV;
|
|
goto out_ieee80211_free_hw;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if (!err)
|
|
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if (err) {
|
|
IWL_WARN(priv, "No suitable DMA available.\n");
|
|
goto out_pci_disable_device;
|
|
}
|
|
|
|
pci_set_drvdata(pdev, priv);
|
|
err = pci_request_regions(pdev, DRV_NAME);
|
|
if (err)
|
|
goto out_pci_disable_device;
|
|
|
|
/***********************
|
|
* 3. Read REV Register
|
|
* ********************/
|
|
priv->hw_base = pci_iomap(pdev, 0, 0);
|
|
if (!priv->hw_base) {
|
|
err = -ENODEV;
|
|
goto out_pci_release_regions;
|
|
}
|
|
|
|
IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n",
|
|
(unsigned long long) pci_resource_len(pdev, 0));
|
|
IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base);
|
|
|
|
/* We disable the RETRY_TIMEOUT register (0x41) to keep
|
|
* PCI Tx retries from interfering with C3 CPU state */
|
|
pci_write_config_byte(pdev, 0x41, 0x00);
|
|
|
|
/* amp init */
|
|
err = priv->cfg->ops->lib->apm_ops.init(priv);
|
|
if (err < 0) {
|
|
IWL_DEBUG_INFO(priv, "Failed to init the card\n");
|
|
goto out_iounmap;
|
|
}
|
|
|
|
/***********************
|
|
* 4. Read EEPROM
|
|
* ********************/
|
|
|
|
/* Read the EEPROM */
|
|
err = iwl_eeprom_init(priv);
|
|
if (err) {
|
|
IWL_ERR(priv, "Unable to init EEPROM\n");
|
|
goto out_iounmap;
|
|
}
|
|
/* MAC Address location in EEPROM same for 3945/4965 */
|
|
eeprom = (struct iwl3945_eeprom *)priv->eeprom;
|
|
memcpy(priv->mac_addr, eeprom->mac_address, ETH_ALEN);
|
|
IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->mac_addr);
|
|
SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
|
|
|
|
/***********************
|
|
* 5. Setup HW Constants
|
|
* ********************/
|
|
/* Device-specific setup */
|
|
if (iwl3945_hw_set_hw_params(priv)) {
|
|
IWL_ERR(priv, "failed to set hw settings\n");
|
|
goto out_eeprom_free;
|
|
}
|
|
|
|
/***********************
|
|
* 6. Setup priv
|
|
* ********************/
|
|
|
|
err = iwl3945_init_drv(priv);
|
|
if (err) {
|
|
IWL_ERR(priv, "initializing driver failed\n");
|
|
goto out_unset_hw_params;
|
|
}
|
|
|
|
IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s\n",
|
|
priv->cfg->name);
|
|
|
|
/***********************************
|
|
* 7. Initialize Module Parameters
|
|
* **********************************/
|
|
|
|
/* Initialize module parameter values here */
|
|
/* Disable radio (SW RF KILL) via parameter when loading driver */
|
|
if (iwl3945_mod_params.disable) {
|
|
set_bit(STATUS_RF_KILL_SW, &priv->status);
|
|
IWL_DEBUG_INFO(priv, "Radio disabled.\n");
|
|
}
|
|
|
|
|
|
/***********************
|
|
* 8. Setup Services
|
|
* ********************/
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
iwl_disable_interrupts(priv);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
pci_enable_msi(priv->pci_dev);
|
|
|
|
err = request_irq(priv->pci_dev->irq, iwl_isr, IRQF_SHARED,
|
|
DRV_NAME, priv);
|
|
if (err) {
|
|
IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
|
|
goto out_disable_msi;
|
|
}
|
|
|
|
err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group);
|
|
if (err) {
|
|
IWL_ERR(priv, "failed to create sysfs device attributes\n");
|
|
goto out_release_irq;
|
|
}
|
|
|
|
iwl_set_rxon_channel(priv,
|
|
&priv->bands[IEEE80211_BAND_2GHZ].channels[5]);
|
|
iwl3945_setup_deferred_work(priv);
|
|
iwl3945_setup_rx_handlers(priv);
|
|
|
|
/*********************************
|
|
* 9. Setup and Register mac80211
|
|
* *******************************/
|
|
|
|
iwl_enable_interrupts(priv);
|
|
|
|
err = iwl3945_setup_mac(priv);
|
|
if (err)
|
|
goto out_remove_sysfs;
|
|
|
|
err = iwl_rfkill_init(priv);
|
|
if (err)
|
|
IWL_ERR(priv, "Unable to initialize RFKILL system. "
|
|
"Ignoring error: %d\n", err);
|
|
else
|
|
iwl_rfkill_set_hw_state(priv);
|
|
|
|
/* Start monitoring the killswitch */
|
|
queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
|
|
2 * HZ);
|
|
|
|
return 0;
|
|
|
|
out_remove_sysfs:
|
|
destroy_workqueue(priv->workqueue);
|
|
priv->workqueue = NULL;
|
|
sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
|
|
out_release_irq:
|
|
free_irq(priv->pci_dev->irq, priv);
|
|
out_disable_msi:
|
|
pci_disable_msi(priv->pci_dev);
|
|
iwlcore_free_geos(priv);
|
|
iwl_free_channel_map(priv);
|
|
out_unset_hw_params:
|
|
iwl3945_unset_hw_params(priv);
|
|
out_eeprom_free:
|
|
iwl_eeprom_free(priv);
|
|
out_iounmap:
|
|
pci_iounmap(pdev, priv->hw_base);
|
|
out_pci_release_regions:
|
|
pci_release_regions(pdev);
|
|
out_pci_disable_device:
|
|
pci_set_drvdata(pdev, NULL);
|
|
pci_disable_device(pdev);
|
|
out_ieee80211_free_hw:
|
|
ieee80211_free_hw(priv->hw);
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
static void __devexit iwl3945_pci_remove(struct pci_dev *pdev)
|
|
{
|
|
struct iwl_priv *priv = pci_get_drvdata(pdev);
|
|
unsigned long flags;
|
|
|
|
if (!priv)
|
|
return;
|
|
|
|
IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
|
|
|
|
set_bit(STATUS_EXIT_PENDING, &priv->status);
|
|
|
|
if (priv->mac80211_registered) {
|
|
ieee80211_unregister_hw(priv->hw);
|
|
priv->mac80211_registered = 0;
|
|
} else {
|
|
iwl3945_down(priv);
|
|
}
|
|
|
|
/* make sure we flush any pending irq or
|
|
* tasklet for the driver
|
|
*/
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
iwl_disable_interrupts(priv);
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
iwl_synchronize_irq(priv);
|
|
|
|
sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
|
|
|
|
iwl_rfkill_unregister(priv);
|
|
cancel_delayed_work_sync(&priv->rfkill_poll);
|
|
|
|
iwl3945_dealloc_ucode_pci(priv);
|
|
|
|
if (priv->rxq.bd)
|
|
iwl3945_rx_queue_free(priv, &priv->rxq);
|
|
iwl3945_hw_txq_ctx_free(priv);
|
|
|
|
iwl3945_unset_hw_params(priv);
|
|
iwl3945_clear_stations_table(priv);
|
|
|
|
/*netif_stop_queue(dev); */
|
|
flush_workqueue(priv->workqueue);
|
|
|
|
/* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
|
|
* priv->workqueue... so we can't take down the workqueue
|
|
* until now... */
|
|
destroy_workqueue(priv->workqueue);
|
|
priv->workqueue = NULL;
|
|
|
|
free_irq(pdev->irq, priv);
|
|
pci_disable_msi(pdev);
|
|
|
|
pci_iounmap(pdev, priv->hw_base);
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
pci_set_drvdata(pdev, NULL);
|
|
|
|
iwl_free_channel_map(priv);
|
|
iwlcore_free_geos(priv);
|
|
kfree(priv->scan);
|
|
if (priv->ibss_beacon)
|
|
dev_kfree_skb(priv->ibss_beacon);
|
|
|
|
ieee80211_free_hw(priv->hw);
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
|
|
static int iwl3945_pci_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
struct iwl_priv *priv = pci_get_drvdata(pdev);
|
|
|
|
if (priv->is_open) {
|
|
set_bit(STATUS_IN_SUSPEND, &priv->status);
|
|
iwl3945_mac_stop(priv->hw);
|
|
priv->is_open = 1;
|
|
}
|
|
pci_save_state(pdev);
|
|
pci_disable_device(pdev);
|
|
pci_set_power_state(pdev, PCI_D3hot);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int iwl3945_pci_resume(struct pci_dev *pdev)
|
|
{
|
|
struct iwl_priv *priv = pci_get_drvdata(pdev);
|
|
int ret;
|
|
|
|
pci_set_power_state(pdev, PCI_D0);
|
|
ret = pci_enable_device(pdev);
|
|
if (ret)
|
|
return ret;
|
|
pci_restore_state(pdev);
|
|
|
|
if (priv->is_open)
|
|
iwl3945_mac_start(priv->hw);
|
|
|
|
clear_bit(STATUS_IN_SUSPEND, &priv->status);
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_PM */
|
|
|
|
/*****************************************************************************
|
|
*
|
|
* driver and module entry point
|
|
*
|
|
*****************************************************************************/
|
|
|
|
static struct pci_driver iwl3945_driver = {
|
|
.name = DRV_NAME,
|
|
.id_table = iwl3945_hw_card_ids,
|
|
.probe = iwl3945_pci_probe,
|
|
.remove = __devexit_p(iwl3945_pci_remove),
|
|
#ifdef CONFIG_PM
|
|
.suspend = iwl3945_pci_suspend,
|
|
.resume = iwl3945_pci_resume,
|
|
#endif
|
|
};
|
|
|
|
static int __init iwl3945_init(void)
|
|
{
|
|
|
|
int ret;
|
|
printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
|
|
printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
|
|
|
|
ret = iwl3945_rate_control_register();
|
|
if (ret) {
|
|
printk(KERN_ERR DRV_NAME
|
|
"Unable to register rate control algorithm: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = pci_register_driver(&iwl3945_driver);
|
|
if (ret) {
|
|
printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n");
|
|
goto error_register;
|
|
}
|
|
|
|
return ret;
|
|
|
|
error_register:
|
|
iwl3945_rate_control_unregister();
|
|
return ret;
|
|
}
|
|
|
|
static void __exit iwl3945_exit(void)
|
|
{
|
|
pci_unregister_driver(&iwl3945_driver);
|
|
iwl3945_rate_control_unregister();
|
|
}
|
|
|
|
MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX));
|
|
|
|
module_param_named(antenna, iwl3945_mod_params.antenna, int, 0444);
|
|
MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
|
|
module_param_named(disable, iwl3945_mod_params.disable, int, 0444);
|
|
MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
|
|
module_param_named(swcrypto, iwl3945_mod_params.sw_crypto, int, 0444);
|
|
MODULE_PARM_DESC(swcrypto,
|
|
"using software crypto (default 1 [software])\n");
|
|
module_param_named(debug, iwl3945_mod_params.debug, uint, 0444);
|
|
MODULE_PARM_DESC(debug, "debug output mask");
|
|
module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, int, 0444);
|
|
MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
|
|
|
|
module_param_named(queues_num, iwl3945_mod_params.num_of_queues, int, 0444);
|
|
MODULE_PARM_DESC(queues_num, "number of hw queues.");
|
|
|
|
module_param_named(fw_restart3945, iwl3945_mod_params.restart_fw, int, 0444);
|
|
MODULE_PARM_DESC(fw_restart3945, "restart firmware in case of error");
|
|
|
|
module_exit(iwl3945_exit);
|
|
module_init(iwl3945_init);
|