1 /******************************************************************************
5 * Copyright(c) 2008 Intel Corporation. All rights reserved.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.GPL.
24 * Contact Information:
25 * Tomas Winkler <tomas.winkler@intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *****************************************************************************/
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/version.h>
32 #include <net/mac80211.h>
34 struct iwl_priv
; /* FIXME: remove */
35 #include "iwl-debug.h"
36 #include "iwl-eeprom.h"
39 #include "iwl-4965.h" /* FIXME: remove */
41 MODULE_DESCRIPTION("iwl core");
42 MODULE_VERSION(IWLWIFI_VERSION
);
43 MODULE_AUTHOR(DRV_COPYRIGHT
);
44 MODULE_LICENSE("GPL");
46 #ifdef CONFIG_IWLWIFI_DEBUG
48 EXPORT_SYMBOL(iwl_debug_level
);
51 /* This function both allocates and initializes hw and priv. */
52 struct ieee80211_hw
*iwl_alloc_all(struct iwl_cfg
*cfg
,
53 struct ieee80211_ops
*hw_ops
)
55 struct iwl_priv
*priv
;
57 /* mac80211 allocates memory for this device instance, including
58 * space for this driver's private structure */
59 struct ieee80211_hw
*hw
=
60 ieee80211_alloc_hw(sizeof(struct iwl_priv
), hw_ops
);
62 IWL_ERROR("Can not allocate network device\n");
72 EXPORT_SYMBOL(iwl_alloc_all
);
75 * iwlcore_clear_stations_table - Clear the driver's station table
77 * NOTE: This does not clear or otherwise alter the device's station table.
79 void iwlcore_clear_stations_table(struct iwl_priv
*priv
)
83 spin_lock_irqsave(&priv
->sta_lock
, flags
);
85 priv
->num_stations
= 0;
86 memset(priv
->stations
, 0, sizeof(priv
->stations
));
88 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
90 EXPORT_SYMBOL(iwlcore_clear_stations_table
);
92 void iwlcore_reset_qos(struct iwl_priv
*priv
)
101 spin_lock_irqsave(&priv
->lock
, flags
);
102 priv
->qos_data
.qos_active
= 0;
104 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) {
105 if (priv
->qos_data
.qos_enable
)
106 priv
->qos_data
.qos_active
= 1;
107 if (!(priv
->active_rate
& 0xfff0)) {
111 } else if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
112 if (priv
->qos_data
.qos_enable
)
113 priv
->qos_data
.qos_active
= 1;
114 } else if (!(priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
)) {
119 if (priv
->qos_data
.qos_active
)
122 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
123 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
124 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
125 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
126 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
128 if (priv
->qos_data
.qos_active
) {
130 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
131 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
132 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
133 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
134 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
137 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
138 cpu_to_le16((cw_min
+ 1) / 2 - 1);
139 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
141 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
143 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
146 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
148 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
151 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
152 cpu_to_le16((cw_min
+ 1) / 4 - 1);
153 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
154 cpu_to_le16((cw_max
+ 1) / 2 - 1);
155 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
156 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
158 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
161 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
164 for (i
= 1; i
< 4; i
++) {
165 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
167 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
169 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
170 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
171 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
174 IWL_DEBUG_QOS("set QoS to default \n");
176 spin_unlock_irqrestore(&priv
->lock
, flags
);
178 EXPORT_SYMBOL(iwlcore_reset_qos
);
181 * iwlcore_set_rxon_channel - Set the phymode and channel values in staging RXON
182 * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
183 * @channel: Any channel valid for the requested phymode
185 * In addition to setting the staging RXON, priv->phymode is also set.
187 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
188 * in the staging RXON flag structure based on the phymode
190 int iwlcore_set_rxon_channel(struct iwl_priv
*priv
,
191 enum ieee80211_band band
,
194 if (!iwl4965_get_channel_info(priv
, band
, channel
)) {
195 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
200 if ((le16_to_cpu(priv
->staging_rxon
.channel
) == channel
) &&
201 (priv
->band
== band
))
204 priv
->staging_rxon
.channel
= cpu_to_le16(channel
);
205 if (band
== IEEE80211_BAND_5GHZ
)
206 priv
->staging_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
208 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
212 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel
, band
);
216 EXPORT_SYMBOL(iwlcore_set_rxon_channel
);
218 static void iwlcore_init_hw(struct iwl_priv
*priv
)
220 struct ieee80211_hw
*hw
= priv
->hw
;
221 hw
->rate_control_algorithm
= "iwl-4965-rs";
223 /* Tell mac80211 and its clients (e.g. Wireless Extensions)
224 * the range of signal quality values that we'll provide.
225 * Negative values for level/noise indicate that we'll provide dBm.
226 * For WE, at least, non-0 values here *enable* display of values
227 * in app (iwconfig). */
228 hw
->max_rssi
= -20; /* signal level, negative indicates dBm */
229 hw
->max_noise
= -20; /* noise level, negative indicates dBm */
230 hw
->max_signal
= 100; /* link quality indication (%) */
232 /* Tell mac80211 our Tx characteristics */
233 hw
->flags
= IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE
;
235 /* Default value; 4 EDCA QOS priorities */
237 #ifdef CONFIG_IWL4965_HT
238 /* Enhanced value; more queues, to support 11n aggregation */
240 #endif /* CONFIG_IWL4965_HT */
243 int iwl_setup(struct iwl_priv
*priv
)
246 iwlcore_init_hw(priv
);
247 ret
= priv
->cfg
->ops
->lib
->init_drv(priv
);
250 EXPORT_SYMBOL(iwl_setup
);