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linux/drivers/net/wireless/iwlwifi/iwl-agn.h
Johannes Berg 5a3d9882b8 iwlagn: rewrite HW crypto 
As I just discovered while doing WoWLAN, HW crypto
is done wrong for GTKs: they should be programmed
for the AP station ID (in the managed mode case)
and the HW can actually deal with multiple group
keys per station as well (which is useful in IBSS
RSN but that I've chosen not to use this).

To fix all this, modify the way keys are sent to
the device and key offsets are allocated. After
these changes, key offsets are stored into the
hw_key_idx which we can then track for the key
lifetime, not relying on our sta_cmd array. WEP
default keys get special treatment, of course.

Additionally, since I had the API for it, we can
now pre-fill TKIP phase 1 keys for RX now that we
can obtain the P1K from mac80211, a capability I
had added for WoWLAN initially.

Finally, some keys simply don't need to be added
into the device's key cache -- a key that won't
be used for RX is only needed in the TX header,
so "pretend" to have accepted any key without
adding it into the device -- no need to use up
key space there for it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
2011-07-21 07:31:25 -07:00

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/******************************************************************************
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
* USA
*
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* Contact Information:
* Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*
* BSD LICENSE
*
* Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#ifndef __iwl_agn_h__
#define __iwl_agn_h__
#include "iwl-dev.h"
/* configuration for the _agn devices */
extern struct iwl_cfg iwl5300_agn_cfg;
extern struct iwl_cfg iwl5100_agn_cfg;
extern struct iwl_cfg iwl5350_agn_cfg;
extern struct iwl_cfg iwl5100_bgn_cfg;
extern struct iwl_cfg iwl5100_abg_cfg;
extern struct iwl_cfg iwl5150_agn_cfg;
extern struct iwl_cfg iwl5150_abg_cfg;
extern struct iwl_cfg iwl6005_2agn_cfg;
extern struct iwl_cfg iwl6005_2abg_cfg;
extern struct iwl_cfg iwl6005_2bg_cfg;
extern struct iwl_cfg iwl1030_bgn_cfg;
extern struct iwl_cfg iwl1030_bg_cfg;
extern struct iwl_cfg iwl6030_2agn_cfg;
extern struct iwl_cfg iwl6030_2abg_cfg;
extern struct iwl_cfg iwl6030_2bgn_cfg;
extern struct iwl_cfg iwl6030_2bg_cfg;
extern struct iwl_cfg iwl6000i_2agn_cfg;
extern struct iwl_cfg iwl6000i_2abg_cfg;
extern struct iwl_cfg iwl6000i_2bg_cfg;
extern struct iwl_cfg iwl6000_3agn_cfg;
extern struct iwl_cfg iwl6050_2agn_cfg;
extern struct iwl_cfg iwl6050_2abg_cfg;
extern struct iwl_cfg iwl6150_bgn_cfg;
extern struct iwl_cfg iwl6150_bg_cfg;
extern struct iwl_cfg iwl1000_bgn_cfg;
extern struct iwl_cfg iwl1000_bg_cfg;
extern struct iwl_cfg iwl100_bgn_cfg;
extern struct iwl_cfg iwl100_bg_cfg;
extern struct iwl_cfg iwl130_bgn_cfg;
extern struct iwl_cfg iwl130_bg_cfg;
extern struct iwl_cfg iwl2000_2bgn_cfg;
extern struct iwl_cfg iwl2000_2bg_cfg;
extern struct iwl_cfg iwl2030_2bgn_cfg;
extern struct iwl_cfg iwl2030_2bg_cfg;
extern struct iwl_cfg iwl6035_2agn_cfg;
extern struct iwl_cfg iwl6035_2abg_cfg;
extern struct iwl_cfg iwl6035_2bg_cfg;
extern struct iwl_cfg iwl105_bg_cfg;
extern struct iwl_cfg iwl105_bgn_cfg;
extern struct iwl_cfg iwl135_bg_cfg;
extern struct iwl_cfg iwl135_bgn_cfg;
extern struct iwl_mod_params iwlagn_mod_params;
extern struct ieee80211_ops iwlagn_hw_ops;
int iwl_reset_ict(struct iwl_priv *priv);
static inline void iwl_set_calib_hdr(struct iwl_calib_hdr *hdr, u8 cmd)
{
hdr->op_code = cmd;
hdr->first_group = 0;
hdr->groups_num = 1;
hdr->data_valid = 1;
}
/* tx queue */
void iwl_free_tfds_in_queue(struct iwl_priv *priv,
int sta_id, int tid, int freed);
/* RXON */
int iwlagn_set_pan_params(struct iwl_priv *priv);
int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed);
void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
u32 changes);
/* uCode */
void iwlagn_rx_calib_result(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
int iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type);
void iwlagn_send_prio_tbl(struct iwl_priv *priv);
int iwlagn_run_init_ucode(struct iwl_priv *priv);
int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv,
struct fw_img *image,
enum iwlagn_ucode_type ucode_type);
/* lib */
void iwl_check_abort_status(struct iwl_priv *priv,
u8 frame_count, u32 status);
int iwlagn_hw_valid_rtc_data_addr(u32 addr);
int iwlagn_send_tx_power(struct iwl_priv *priv);
void iwlagn_temperature(struct iwl_priv *priv);
u16 iwlagn_eeprom_calib_version(struct iwl_priv *priv);
int iwlagn_wait_tx_queue_empty(struct iwl_priv *priv);
int iwlagn_txfifo_flush(struct iwl_priv *priv, u16 flush_control);
void iwlagn_dev_txfifo_flush(struct iwl_priv *priv, u16 flush_control);
int iwlagn_send_beacon_cmd(struct iwl_priv *priv);
/* rx */
int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band);
void iwl_setup_rx_handlers(struct iwl_priv *priv);
void iwl_rx_dispatch(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
/* tx */
void iwlagn_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq,
int index);
void iwlagn_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
struct ieee80211_tx_info *info);
int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, u16 tid, u16 *ssn);
int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, u16 tid);
int iwlagn_txq_check_empty(struct iwl_priv *priv,
int sta_id, u8 tid, int txq_id);
void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
void iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
int iwlagn_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
static inline u32 iwl_tx_status_to_mac80211(u32 status)
{
status &= TX_STATUS_MSK;
switch (status) {
case TX_STATUS_SUCCESS:
case TX_STATUS_DIRECT_DONE:
return IEEE80211_TX_STAT_ACK;
case TX_STATUS_FAIL_DEST_PS:
case TX_STATUS_FAIL_PASSIVE_NO_RX:
return IEEE80211_TX_STAT_TX_FILTERED;
default:
return 0;
}
}
static inline bool iwl_is_tx_success(u32 status)
{
status &= TX_STATUS_MSK;
return (status == TX_STATUS_SUCCESS) ||
(status == TX_STATUS_DIRECT_DONE);
}
u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx, u8 valid);
/* scan */
int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif);
void iwlagn_post_scan(struct iwl_priv *priv);
/* station mgmt */
int iwlagn_manage_ibss_station(struct iwl_priv *priv,
struct ieee80211_vif *vif, bool add);
/* bt coex */
void iwlagn_send_advance_bt_config(struct iwl_priv *priv);
void iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb);
void iwlagn_bt_rx_handler_setup(struct iwl_priv *priv);
void iwlagn_bt_setup_deferred_work(struct iwl_priv *priv);
void iwlagn_bt_cancel_deferred_work(struct iwl_priv *priv);
void iwlagn_bt_coex_rssi_monitor(struct iwl_priv *priv);
void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena);
#ifdef CONFIG_IWLWIFI_DEBUG
const char *iwl_get_tx_fail_reason(u32 status);
const char *iwl_get_agg_tx_fail_reason(u16 status);
#else
static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
static inline const char *iwl_get_agg_tx_fail_reason(u16 status) { return ""; }
#endif
/* station management */
int iwlagn_alloc_bcast_station(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
int iwlagn_add_bssid_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
const u8 *addr, u8 *sta_id_r);
int iwl_remove_default_wep_key(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *key);
int iwl_set_default_wep_key(struct iwl_priv *priv,
struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *key);
int iwl_restore_default_wep_keys(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
int iwl_set_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *key,
struct ieee80211_sta *sta);
int iwl_remove_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
struct ieee80211_key_conf *key,
struct ieee80211_sta *sta);
void iwl_update_tkip_key(struct iwl_priv *priv,
struct ieee80211_vif *vif,
struct ieee80211_key_conf *keyconf,
struct ieee80211_sta *sta, u32 iv32, u16 *phase1key);
int iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid);
int iwl_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta,
int tid, u16 ssn);
int iwl_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta,
int tid);
void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt);
int iwl_update_bcast_station(struct iwl_priv *priv,
struct iwl_rxon_context *ctx);
int iwl_update_bcast_stations(struct iwl_priv *priv);
void iwlagn_mac_sta_notify(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum sta_notify_cmd cmd,
struct ieee80211_sta *sta);
/* rate */
static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
{
return BIT(ant_idx) << RATE_MCS_ANT_POS;
}
static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
{
return le32_to_cpu(rate_n_flags) & RATE_MCS_RATE_MSK;
}
static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
{
return cpu_to_le32(flags|(u32)rate);
}
/* eeprom */
void iwlcore_eeprom_enhanced_txpower(struct iwl_priv *priv);
void iwl_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac);
/* notification wait support */
void __acquires(wait_entry)
iwlagn_init_notification_wait(struct iwl_priv *priv,
struct iwl_notification_wait *wait_entry,
u8 cmd,
void (*fn)(struct iwl_priv *priv,
struct iwl_rx_packet *pkt,
void *data),
void *fn_data);
int __must_check __releases(wait_entry)
iwlagn_wait_notification(struct iwl_priv *priv,
struct iwl_notification_wait *wait_entry,
unsigned long timeout);
void __releases(wait_entry)
iwlagn_remove_notification(struct iwl_priv *priv,
struct iwl_notification_wait *wait_entry);
extern int iwlagn_init_alive_start(struct iwl_priv *priv);
extern int iwl_alive_start(struct iwl_priv *priv);
/* svtool */
#ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
extern int iwl_testmode_cmd(struct ieee80211_hw *hw, void *data, int len);
extern int iwl_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
struct netlink_callback *cb,
void *data, int len);
extern void iwl_testmode_init(struct iwl_priv *priv);
extern void iwl_testmode_cleanup(struct iwl_priv *priv);
#else
static inline
int iwl_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
{
return -ENOSYS;
}
static inline
int iwl_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
struct netlink_callback *cb,
void *data, int len)
{
return -ENOSYS;
}
static inline
void iwl_testmode_init(struct iwl_priv *priv)
{
}
static inline
void iwl_testmode_cleanup(struct iwl_priv *priv)
{
}
#endif
#endif /* __iwl_agn_h__ */
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