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"
37 #include "iwl-4965.h" /* FIXME: remove */
39 #include "iwl-rfkill.h"
40 #include "iwl-power.h"
43 MODULE_DESCRIPTION("iwl core");
44 MODULE_VERSION(IWLWIFI_VERSION
);
45 MODULE_AUTHOR(DRV_COPYRIGHT
);
46 MODULE_LICENSE("GPL");
48 #ifdef CONFIG_IWLWIFI_DEBUG
50 EXPORT_SYMBOL(iwl_debug_level
);
53 /* This function both allocates and initializes hw and priv. */
54 struct ieee80211_hw
*iwl_alloc_all(struct iwl_cfg
*cfg
,
55 struct ieee80211_ops
*hw_ops
)
57 struct iwl_priv
*priv
;
59 /* mac80211 allocates memory for this device instance, including
60 * space for this driver's private structure */
61 struct ieee80211_hw
*hw
=
62 ieee80211_alloc_hw(sizeof(struct iwl_priv
), hw_ops
);
64 IWL_ERROR("Can not allocate network device\n");
74 EXPORT_SYMBOL(iwl_alloc_all
);
77 * iwlcore_clear_stations_table - Clear the driver's station table
79 * NOTE: This does not clear or otherwise alter the device's station table.
81 void iwlcore_clear_stations_table(struct iwl_priv
*priv
)
85 spin_lock_irqsave(&priv
->sta_lock
, flags
);
87 priv
->num_stations
= 0;
88 memset(priv
->stations
, 0, sizeof(priv
->stations
));
90 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
92 EXPORT_SYMBOL(iwlcore_clear_stations_table
);
94 void iwlcore_reset_qos(struct iwl_priv
*priv
)
103 spin_lock_irqsave(&priv
->lock
, flags
);
104 priv
->qos_data
.qos_active
= 0;
106 if (priv
->iw_mode
== IEEE80211_IF_TYPE_IBSS
) {
107 if (priv
->qos_data
.qos_enable
)
108 priv
->qos_data
.qos_active
= 1;
109 if (!(priv
->active_rate
& 0xfff0)) {
113 } else if (priv
->iw_mode
== IEEE80211_IF_TYPE_AP
) {
114 if (priv
->qos_data
.qos_enable
)
115 priv
->qos_data
.qos_active
= 1;
116 } else if (!(priv
->staging_rxon
.flags
& RXON_FLG_SHORT_SLOT_MSK
)) {
121 if (priv
->qos_data
.qos_active
)
124 priv
->qos_data
.def_qos_parm
.ac
[0].cw_min
= cpu_to_le16(cw_min
);
125 priv
->qos_data
.def_qos_parm
.ac
[0].cw_max
= cpu_to_le16(cw_max
);
126 priv
->qos_data
.def_qos_parm
.ac
[0].aifsn
= aifs
;
127 priv
->qos_data
.def_qos_parm
.ac
[0].edca_txop
= 0;
128 priv
->qos_data
.def_qos_parm
.ac
[0].reserved1
= 0;
130 if (priv
->qos_data
.qos_active
) {
132 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
= cpu_to_le16(cw_min
);
133 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
= cpu_to_le16(cw_max
);
134 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 7;
135 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
136 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
139 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
140 cpu_to_le16((cw_min
+ 1) / 2 - 1);
141 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
143 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
145 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
148 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
150 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
153 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
154 cpu_to_le16((cw_min
+ 1) / 4 - 1);
155 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
156 cpu_to_le16((cw_max
+ 1) / 2 - 1);
157 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= 2;
158 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
160 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
163 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
=
166 for (i
= 1; i
< 4; i
++) {
167 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_min
=
169 priv
->qos_data
.def_qos_parm
.ac
[i
].cw_max
=
171 priv
->qos_data
.def_qos_parm
.ac
[i
].aifsn
= aifs
;
172 priv
->qos_data
.def_qos_parm
.ac
[i
].edca_txop
= 0;
173 priv
->qos_data
.def_qos_parm
.ac
[i
].reserved1
= 0;
176 IWL_DEBUG_QOS("set QoS to default \n");
178 spin_unlock_irqrestore(&priv
->lock
, flags
);
180 EXPORT_SYMBOL(iwlcore_reset_qos
);
183 * iwlcore_set_rxon_channel - Set the phymode and channel values in staging RXON
184 * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz
185 * @channel: Any channel valid for the requested phymode
187 * In addition to setting the staging RXON, priv->phymode is also set.
189 * NOTE: Does not commit to the hardware; it sets appropriate bit fields
190 * in the staging RXON flag structure based on the phymode
192 int iwlcore_set_rxon_channel(struct iwl_priv
*priv
,
193 enum ieee80211_band band
,
196 if (!iwl_get_channel_info(priv
, band
, channel
)) {
197 IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
202 if ((le16_to_cpu(priv
->staging_rxon
.channel
) == channel
) &&
203 (priv
->band
== band
))
206 priv
->staging_rxon
.channel
= cpu_to_le16(channel
);
207 if (band
== IEEE80211_BAND_5GHZ
)
208 priv
->staging_rxon
.flags
&= ~RXON_FLG_BAND_24G_MSK
;
210 priv
->staging_rxon
.flags
|= RXON_FLG_BAND_24G_MSK
;
214 IWL_DEBUG_INFO("Staging channel set to %d [%d]\n", channel
, band
);
218 EXPORT_SYMBOL(iwlcore_set_rxon_channel
);
220 static void iwlcore_init_hw(struct iwl_priv
*priv
)
222 struct ieee80211_hw
*hw
= priv
->hw
;
223 hw
->rate_control_algorithm
= "iwl-4965-rs";
225 /* Tell mac80211 and its clients (e.g. Wireless Extensions)
226 * the range of signal quality values that we'll provide.
227 * Negative values for level/noise indicate that we'll provide dBm.
228 * For WE, at least, non-0 values here *enable* display of values
229 * in app (iwconfig). */
230 hw
->max_rssi
= -20; /* signal level, negative indicates dBm */
231 hw
->max_noise
= -20; /* noise level, negative indicates dBm */
232 hw
->max_signal
= 100; /* link quality indication (%) */
234 /* Tell mac80211 our Tx characteristics */
235 hw
->flags
= IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE
;
237 /* Default value; 4 EDCA QOS priorities */
239 #ifdef CONFIG_IWL4965_HT
240 /* Enhanced value; more queues, to support 11n aggregation */
242 #endif /* CONFIG_IWL4965_HT */
245 int iwl_setup(struct iwl_priv
*priv
)
248 iwlcore_init_hw(priv
);
249 ret
= priv
->cfg
->ops
->lib
->init_drv(priv
);
252 EXPORT_SYMBOL(iwl_setup
);
254 /* Low level driver call this function to update iwlcore with
257 int iwlcore_low_level_notify(struct iwl_priv
*priv
,
258 enum iwlcore_card_notify notify
)
262 case IWLCORE_INIT_EVT
:
263 ret
= iwl_rfkill_init(priv
);
265 IWL_ERROR("Unable to initialize RFKILL system. "
266 "Ignoring error: %d\n", ret
);
267 iwl_power_initialize(priv
);
269 case IWLCORE_START_EVT
:
270 iwl_power_update_mode(priv
, 1);
272 case IWLCORE_STOP_EVT
:
274 case IWLCORE_REMOVE_EVT
:
275 iwl_rfkill_unregister(priv
);
281 EXPORT_SYMBOL(iwlcore_low_level_notify
);
283 int iwl_send_statistics_request(struct iwl_priv
*priv
, u8 flags
)
286 struct iwl_host_cmd cmd
= {
287 .id
= REPLY_STATISTICS_CMD
,
289 .len
= sizeof(stat_flags
),
290 .data
= (u8
*) &stat_flags
,
292 return iwl_send_cmd(priv
, &cmd
);
294 EXPORT_SYMBOL(iwl_send_statistics_request
);