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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
01f8162a | 3 | * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
759ef89f | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
b481de9c ZY |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
b481de9c ZY |
30 | #include <linux/kernel.h> |
31 | #include <linux/module.h> | |
b481de9c ZY |
32 | #include <linux/init.h> |
33 | #include <linux/pci.h> | |
34 | #include <linux/dma-mapping.h> | |
35 | #include <linux/delay.h> | |
36 | #include <linux/skbuff.h> | |
37 | #include <linux/netdevice.h> | |
38 | #include <linux/wireless.h> | |
39 | #include <linux/firmware.h> | |
b481de9c ZY |
40 | #include <linux/etherdevice.h> |
41 | #include <linux/if_arp.h> | |
42 | ||
43 | #include <net/ieee80211_radiotap.h> | |
7e272fcf | 44 | #include <net/lib80211.h> |
b481de9c ZY |
45 | #include <net/mac80211.h> |
46 | ||
47 | #include <asm/div64.h> | |
48 | ||
a3139c59 SO |
49 | #define DRV_NAME "iwl3945" |
50 | ||
dbb6654c WT |
51 | #include "iwl-fh.h" |
52 | #include "iwl-3945-fh.h" | |
600c0e11 | 53 | #include "iwl-commands.h" |
17f841cd | 54 | #include "iwl-sta.h" |
b481de9c ZY |
55 | #include "iwl-3945.h" |
56 | #include "iwl-helpers.h" | |
5747d47f | 57 | #include "iwl-core.h" |
d20b3c65 | 58 | #include "iwl-dev.h" |
b481de9c | 59 | |
b481de9c ZY |
60 | /* |
61 | * module name, copyright, version, etc. | |
b481de9c ZY |
62 | */ |
63 | ||
64 | #define DRV_DESCRIPTION \ | |
65 | "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" | |
66 | ||
d08853a3 | 67 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
68 | #define VD "d" |
69 | #else | |
70 | #define VD | |
71 | #endif | |
72 | ||
c8b0e6e1 | 73 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
74 | #define VS "s" |
75 | #else | |
76 | #define VS | |
77 | #endif | |
78 | ||
eaa686c3 | 79 | #define IWL39_VERSION "1.2.26k" VD VS |
01f8162a | 80 | #define DRV_COPYRIGHT "Copyright(c) 2003-2009 Intel Corporation" |
a7b75207 | 81 | #define DRV_AUTHOR "<ilw@linux.intel.com>" |
eaa686c3 | 82 | #define DRV_VERSION IWL39_VERSION |
b481de9c | 83 | |
b481de9c ZY |
84 | |
85 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
86 | MODULE_VERSION(DRV_VERSION); | |
a7b75207 | 87 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
b481de9c ZY |
88 | MODULE_LICENSE("GPL"); |
89 | ||
df878d8f KA |
90 | /* module parameters */ |
91 | struct iwl_mod_params iwl3945_mod_params = { | |
92 | .num_of_queues = IWL39_MAX_NUM_QUEUES, | |
9c74d9fb | 93 | .sw_crypto = 1, |
af48d048 | 94 | .restart_fw = 1, |
df878d8f KA |
95 | /* the rest are 0 by default */ |
96 | }; | |
97 | ||
b481de9c | 98 | /*************** STATION TABLE MANAGEMENT **** |
9fbab516 | 99 | * mac80211 should be examined to determine if sta_info is duplicating |
b481de9c ZY |
100 | * the functionality provided here |
101 | */ | |
102 | ||
103 | /**************************************************************/ | |
01ebd063 | 104 | #if 0 /* temporary disable till we add real remove station */ |
6440adb5 BC |
105 | /** |
106 | * iwl3945_remove_station - Remove driver's knowledge of station. | |
107 | * | |
108 | * NOTE: This does not remove station from device's station table. | |
109 | */ | |
4a8a4322 | 110 | static u8 iwl3945_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap) |
b481de9c ZY |
111 | { |
112 | int index = IWL_INVALID_STATION; | |
113 | int i; | |
114 | unsigned long flags; | |
115 | ||
116 | spin_lock_irqsave(&priv->sta_lock, flags); | |
117 | ||
118 | if (is_ap) | |
119 | index = IWL_AP_ID; | |
120 | else if (is_broadcast_ether_addr(addr)) | |
3832ec9d | 121 | index = priv->hw_params.bcast_sta_id; |
b481de9c | 122 | else |
3832ec9d | 123 | for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) |
f2c7e521 AK |
124 | if (priv->stations_39[i].used && |
125 | !compare_ether_addr(priv->stations_39[i].sta.sta.addr, | |
b481de9c ZY |
126 | addr)) { |
127 | index = i; | |
128 | break; | |
129 | } | |
130 | ||
131 | if (unlikely(index == IWL_INVALID_STATION)) | |
132 | goto out; | |
133 | ||
f2c7e521 AK |
134 | if (priv->stations_39[index].used) { |
135 | priv->stations_39[index].used = 0; | |
b481de9c ZY |
136 | priv->num_stations--; |
137 | } | |
138 | ||
139 | BUG_ON(priv->num_stations < 0); | |
140 | ||
141 | out: | |
142 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
143 | return 0; | |
144 | } | |
556f8db7 | 145 | #endif |
6440adb5 BC |
146 | |
147 | /** | |
148 | * iwl3945_clear_stations_table - Clear the driver's station table | |
149 | * | |
150 | * NOTE: This does not clear or otherwise alter the device's station table. | |
151 | */ | |
4a8a4322 | 152 | static void iwl3945_clear_stations_table(struct iwl_priv *priv) |
b481de9c ZY |
153 | { |
154 | unsigned long flags; | |
155 | ||
156 | spin_lock_irqsave(&priv->sta_lock, flags); | |
157 | ||
158 | priv->num_stations = 0; | |
f2c7e521 | 159 | memset(priv->stations_39, 0, sizeof(priv->stations_39)); |
b481de9c ZY |
160 | |
161 | spin_unlock_irqrestore(&priv->sta_lock, flags); | |
162 | } | |
163 | ||
6440adb5 BC |
164 | /** |
165 | * iwl3945_add_station - Add station to station tables in driver and device | |
166 | */ | |
4a8a4322 | 167 | u8 iwl3945_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap, u8 flags) |
b481de9c ZY |
168 | { |
169 | int i; | |
170 | int index = IWL_INVALID_STATION; | |
bb8c093b | 171 | struct iwl3945_station_entry *station; |
b481de9c | 172 | unsigned long flags_spin; |
c14c521e | 173 | u8 rate; |
b481de9c ZY |
174 | |
175 | spin_lock_irqsave(&priv->sta_lock, flags_spin); | |
176 | if (is_ap) | |
177 | index = IWL_AP_ID; | |
178 | else if (is_broadcast_ether_addr(addr)) | |
3832ec9d | 179 | index = priv->hw_params.bcast_sta_id; |
b481de9c | 180 | else |
3832ec9d | 181 | for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) { |
f2c7e521 | 182 | if (!compare_ether_addr(priv->stations_39[i].sta.sta.addr, |
b481de9c ZY |
183 | addr)) { |
184 | index = i; | |
185 | break; | |
186 | } | |
187 | ||
f2c7e521 | 188 | if (!priv->stations_39[i].used && |
b481de9c ZY |
189 | index == IWL_INVALID_STATION) |
190 | index = i; | |
191 | } | |
192 | ||
01ebd063 | 193 | /* These two conditions has the same outcome but keep them separate |
b481de9c ZY |
194 | since they have different meaning */ |
195 | if (unlikely(index == IWL_INVALID_STATION)) { | |
196 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); | |
197 | return index; | |
198 | } | |
199 | ||
f2c7e521 AK |
200 | if (priv->stations_39[index].used && |
201 | !compare_ether_addr(priv->stations_39[index].sta.sta.addr, addr)) { | |
b481de9c ZY |
202 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
203 | return index; | |
204 | } | |
205 | ||
e1623446 | 206 | IWL_DEBUG_ASSOC(priv, "Add STA ID %d: %pM\n", index, addr); |
f2c7e521 | 207 | station = &priv->stations_39[index]; |
b481de9c ZY |
208 | station->used = 1; |
209 | priv->num_stations++; | |
210 | ||
6440adb5 | 211 | /* Set up the REPLY_ADD_STA command to send to device */ |
bb8c093b | 212 | memset(&station->sta, 0, sizeof(struct iwl3945_addsta_cmd)); |
b481de9c ZY |
213 | memcpy(station->sta.sta.addr, addr, ETH_ALEN); |
214 | station->sta.mode = 0; | |
215 | station->sta.sta.sta_id = index; | |
216 | station->sta.station_flags = 0; | |
217 | ||
8318d78a | 218 | if (priv->band == IEEE80211_BAND_5GHZ) |
69946333 TW |
219 | rate = IWL_RATE_6M_PLCP; |
220 | else | |
221 | rate = IWL_RATE_1M_PLCP; | |
c14c521e ZY |
222 | |
223 | /* Turn on both antennas for the station... */ | |
224 | station->sta.rate_n_flags = | |
bb8c093b | 225 | iwl3945_hw_set_rate_n_flags(rate, RATE_MCS_ANT_AB_MSK); |
c14c521e | 226 | |
b481de9c | 227 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
6440adb5 BC |
228 | |
229 | /* Add station to device's station table */ | |
17f841cd SO |
230 | iwl_send_add_sta(priv, |
231 | (struct iwl_addsta_cmd *)&station->sta, flags); | |
b481de9c ZY |
232 | return index; |
233 | ||
234 | } | |
235 | ||
4a8a4322 | 236 | static int iwl3945_send_rxon_assoc(struct iwl_priv *priv) |
b481de9c ZY |
237 | { |
238 | int rc = 0; | |
3d24a9f7 | 239 | struct iwl_rx_packet *res = NULL; |
bb8c093b | 240 | struct iwl3945_rxon_assoc_cmd rxon_assoc; |
c2d79b48 | 241 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
242 | .id = REPLY_RXON_ASSOC, |
243 | .len = sizeof(rxon_assoc), | |
244 | .meta.flags = CMD_WANT_SKB, | |
245 | .data = &rxon_assoc, | |
246 | }; | |
8ccde88a SO |
247 | const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon; |
248 | const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon; | |
b481de9c ZY |
249 | |
250 | if ((rxon1->flags == rxon2->flags) && | |
251 | (rxon1->filter_flags == rxon2->filter_flags) && | |
252 | (rxon1->cck_basic_rates == rxon2->cck_basic_rates) && | |
253 | (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) { | |
e1623446 | 254 | IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n"); |
b481de9c ZY |
255 | return 0; |
256 | } | |
257 | ||
8ccde88a SO |
258 | rxon_assoc.flags = priv->staging_rxon.flags; |
259 | rxon_assoc.filter_flags = priv->staging_rxon.filter_flags; | |
260 | rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates; | |
261 | rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates; | |
b481de9c ZY |
262 | rxon_assoc.reserved = 0; |
263 | ||
518099a8 | 264 | rc = iwl_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
265 | if (rc) |
266 | return rc; | |
267 | ||
3d24a9f7 | 268 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
b481de9c | 269 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
15b1687c | 270 | IWL_ERR(priv, "Bad return from REPLY_RXON_ASSOC command\n"); |
b481de9c ZY |
271 | rc = -EIO; |
272 | } | |
273 | ||
274 | priv->alloc_rxb_skb--; | |
275 | dev_kfree_skb_any(cmd.meta.u.skb); | |
276 | ||
277 | return rc; | |
278 | } | |
279 | ||
7e4bca5e SO |
280 | /** |
281 | * iwl3945_get_antenna_flags - Get antenna flags for RXON command | |
282 | * @priv: eeprom and antenna fields are used to determine antenna flags | |
283 | * | |
284 | * priv->eeprom39 is used to determine if antenna AUX/MAIN are reversed | |
285 | * iwl3945_mod_params.antenna specifies the antenna diversity mode: | |
286 | * | |
287 | * IWL_ANTENNA_DIVERSITY - NIC selects best antenna by itself | |
288 | * IWL_ANTENNA_MAIN - Force MAIN antenna | |
289 | * IWL_ANTENNA_AUX - Force AUX antenna | |
290 | */ | |
291 | __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv) | |
292 | { | |
293 | struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; | |
294 | ||
295 | switch (iwl3945_mod_params.antenna) { | |
296 | case IWL_ANTENNA_DIVERSITY: | |
297 | return 0; | |
298 | ||
299 | case IWL_ANTENNA_MAIN: | |
300 | if (eeprom->antenna_switch_type) | |
301 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; | |
302 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; | |
303 | ||
304 | case IWL_ANTENNA_AUX: | |
305 | if (eeprom->antenna_switch_type) | |
306 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; | |
307 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; | |
308 | } | |
309 | ||
310 | /* bad antenna selector value */ | |
311 | IWL_ERR(priv, "Bad antenna selector value (0x%x)\n", | |
312 | iwl3945_mod_params.antenna); | |
313 | ||
314 | return 0; /* "diversity" is default if error */ | |
315 | } | |
316 | ||
b481de9c | 317 | /** |
bb8c093b | 318 | * iwl3945_commit_rxon - commit staging_rxon to hardware |
b481de9c | 319 | * |
01ebd063 | 320 | * The RXON command in staging_rxon is committed to the hardware and |
b481de9c ZY |
321 | * the active_rxon structure is updated with the new data. This |
322 | * function correctly transitions out of the RXON_ASSOC_MSK state if | |
323 | * a HW tune is required based on the RXON structure changes. | |
324 | */ | |
4a8a4322 | 325 | static int iwl3945_commit_rxon(struct iwl_priv *priv) |
b481de9c ZY |
326 | { |
327 | /* cast away the const for active_rxon in this function */ | |
8ccde88a SO |
328 | struct iwl3945_rxon_cmd *active_rxon = (void *)&priv->active_rxon; |
329 | struct iwl3945_rxon_cmd *staging_rxon = (void *)&priv->staging_rxon; | |
b481de9c | 330 | int rc = 0; |
8337031e AK |
331 | bool new_assoc = |
332 | !!(priv->staging_rxon.filter_flags & RXON_FILTER_ASSOC_MSK); | |
b481de9c | 333 | |
775a6e27 | 334 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
335 | return -1; |
336 | ||
337 | /* always get timestamp with Rx frame */ | |
8ccde88a | 338 | staging_rxon->flags |= RXON_FLG_TSF2HOST_MSK; |
b481de9c ZY |
339 | |
340 | /* select antenna */ | |
8ccde88a | 341 | staging_rxon->flags &= |
b481de9c | 342 | ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK); |
8ccde88a | 343 | staging_rxon->flags |= iwl3945_get_antenna_flags(priv); |
b481de9c | 344 | |
8ccde88a | 345 | rc = iwl_check_rxon_cmd(priv); |
b481de9c | 346 | if (rc) { |
15b1687c | 347 | IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n"); |
b481de9c ZY |
348 | return -EINVAL; |
349 | } | |
350 | ||
351 | /* If we don't need to send a full RXON, we can use | |
bb8c093b | 352 | * iwl3945_rxon_assoc_cmd which is used to reconfigure filter |
b481de9c | 353 | * and other flags for the current radio configuration. */ |
8ccde88a | 354 | if (!iwl_full_rxon_required(priv)) { |
bb8c093b | 355 | rc = iwl3945_send_rxon_assoc(priv); |
b481de9c | 356 | if (rc) { |
15b1687c | 357 | IWL_ERR(priv, "Error setting RXON_ASSOC " |
b481de9c ZY |
358 | "configuration (%d).\n", rc); |
359 | return rc; | |
360 | } | |
361 | ||
8ccde88a | 362 | memcpy(active_rxon, staging_rxon, sizeof(*active_rxon)); |
b481de9c ZY |
363 | |
364 | return 0; | |
365 | } | |
366 | ||
367 | /* If we are currently associated and the new config requires | |
368 | * an RXON_ASSOC and the new config wants the associated mask enabled, | |
369 | * we must clear the associated from the active configuration | |
370 | * before we apply the new config */ | |
8337031e | 371 | if (iwl_is_associated(priv) && new_assoc) { |
e1623446 | 372 | IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n"); |
b481de9c ZY |
373 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
374 | ||
8ccde88a SO |
375 | /* |
376 | * reserved4 and 5 could have been filled by the iwlcore code. | |
377 | * Let's clear them before pushing to the 3945. | |
378 | */ | |
379 | active_rxon->reserved4 = 0; | |
380 | active_rxon->reserved5 = 0; | |
518099a8 | 381 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON, |
bb8c093b | 382 | sizeof(struct iwl3945_rxon_cmd), |
8ccde88a | 383 | &priv->active_rxon); |
b481de9c ZY |
384 | |
385 | /* If the mask clearing failed then we set | |
386 | * active_rxon back to what it was previously */ | |
387 | if (rc) { | |
388 | active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK; | |
15b1687c | 389 | IWL_ERR(priv, "Error clearing ASSOC_MSK on current " |
b481de9c ZY |
390 | "configuration (%d).\n", rc); |
391 | return rc; | |
392 | } | |
b481de9c ZY |
393 | } |
394 | ||
e1623446 | 395 | IWL_DEBUG_INFO(priv, "Sending RXON\n" |
b481de9c ZY |
396 | "* with%s RXON_FILTER_ASSOC_MSK\n" |
397 | "* channel = %d\n" | |
e174961c | 398 | "* bssid = %pM\n", |
8337031e | 399 | (new_assoc ? "" : "out"), |
8ccde88a SO |
400 | le16_to_cpu(staging_rxon->channel), |
401 | staging_rxon->bssid_addr); | |
402 | ||
403 | /* | |
404 | * reserved4 and 5 could have been filled by the iwlcore code. | |
405 | * Let's clear them before pushing to the 3945. | |
406 | */ | |
407 | staging_rxon->reserved4 = 0; | |
408 | staging_rxon->reserved5 = 0; | |
b481de9c | 409 | |
6e21f15c AK |
410 | iwl_set_rxon_hwcrypto(priv, !priv->hw_params.sw_crypto); |
411 | ||
b481de9c | 412 | /* Apply the new configuration */ |
518099a8 | 413 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON, |
8ccde88a SO |
414 | sizeof(struct iwl3945_rxon_cmd), |
415 | staging_rxon); | |
b481de9c | 416 | if (rc) { |
15b1687c | 417 | IWL_ERR(priv, "Error setting new configuration (%d).\n", rc); |
b481de9c ZY |
418 | return rc; |
419 | } | |
420 | ||
8ccde88a | 421 | memcpy(active_rxon, staging_rxon, sizeof(*active_rxon)); |
b481de9c | 422 | |
bb8c093b | 423 | iwl3945_clear_stations_table(priv); |
556f8db7 | 424 | |
b481de9c ZY |
425 | /* If we issue a new RXON command which required a tune then we must |
426 | * send a new TXPOWER command or we won't be able to Tx any frames */ | |
75bcfae9 | 427 | rc = priv->cfg->ops->lib->send_tx_power(priv); |
b481de9c | 428 | if (rc) { |
15b1687c | 429 | IWL_ERR(priv, "Error setting Tx power (%d).\n", rc); |
b481de9c ZY |
430 | return rc; |
431 | } | |
432 | ||
433 | /* Add the broadcast address so we can send broadcast frames */ | |
b5323d36 | 434 | if (iwl3945_add_station(priv, iwl_bcast_addr, 0, 0) == |
b481de9c | 435 | IWL_INVALID_STATION) { |
15b1687c | 436 | IWL_ERR(priv, "Error adding BROADCAST address for transmit.\n"); |
b481de9c ZY |
437 | return -EIO; |
438 | } | |
439 | ||
440 | /* If we have set the ASSOC_MSK and we are in BSS mode then | |
441 | * add the IWL_AP_ID to the station rate table */ | |
8ccde88a | 442 | if (iwl_is_associated(priv) && |
05c914fe | 443 | (priv->iw_mode == NL80211_IFTYPE_STATION)) |
8ccde88a SO |
444 | if (iwl3945_add_station(priv, priv->active_rxon.bssid_addr, |
445 | 1, 0) | |
b481de9c | 446 | == IWL_INVALID_STATION) { |
15b1687c | 447 | IWL_ERR(priv, "Error adding AP address for transmit\n"); |
b481de9c ZY |
448 | return -EIO; |
449 | } | |
450 | ||
8318d78a | 451 | /* Init the hardware's rate fallback order based on the band */ |
b481de9c ZY |
452 | rc = iwl3945_init_hw_rate_table(priv); |
453 | if (rc) { | |
15b1687c | 454 | IWL_ERR(priv, "Error setting HW rate table: %02X\n", rc); |
b481de9c ZY |
455 | return -EIO; |
456 | } | |
457 | ||
458 | return 0; | |
459 | } | |
460 | ||
6e21f15c | 461 | static int iwl3945_set_ccmp_dynamic_key_info(struct iwl_priv *priv, |
b481de9c ZY |
462 | struct ieee80211_key_conf *keyconf, |
463 | u8 sta_id) | |
464 | { | |
465 | unsigned long flags; | |
466 | __le16 key_flags = 0; | |
6e21f15c AK |
467 | int ret; |
468 | ||
469 | key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); | |
470 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
471 | ||
472 | if (sta_id == priv->hw_params.bcast_sta_id) | |
473 | key_flags |= STA_KEY_MULTICAST_MSK; | |
474 | ||
475 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
476 | keyconf->hw_key_idx = keyconf->keyidx; | |
477 | key_flags &= ~STA_KEY_FLG_INVALID; | |
b481de9c | 478 | |
b481de9c | 479 | spin_lock_irqsave(&priv->sta_lock, flags); |
f2c7e521 AK |
480 | priv->stations_39[sta_id].keyinfo.alg = keyconf->alg; |
481 | priv->stations_39[sta_id].keyinfo.keylen = keyconf->keylen; | |
482 | memcpy(priv->stations_39[sta_id].keyinfo.key, keyconf->key, | |
b481de9c ZY |
483 | keyconf->keylen); |
484 | ||
f2c7e521 | 485 | memcpy(priv->stations_39[sta_id].sta.key.key, keyconf->key, |
b481de9c | 486 | keyconf->keylen); |
6e21f15c AK |
487 | |
488 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) | |
489 | == STA_KEY_FLG_NO_ENC) | |
490 | priv->stations[sta_id].sta.key.key_offset = | |
491 | iwl_get_free_ucode_key_index(priv); | |
492 | /* else, we are overriding an existing key => no need to allocated room | |
493 | * in uCode. */ | |
494 | ||
495 | WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, | |
496 | "no space for a new key"); | |
497 | ||
f2c7e521 AK |
498 | priv->stations_39[sta_id].sta.key.key_flags = key_flags; |
499 | priv->stations_39[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
500 | priv->stations_39[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
b481de9c | 501 | |
6e21f15c AK |
502 | IWL_DEBUG_INFO(priv, "hwcrypto: modify ucode station key info\n"); |
503 | ||
504 | ret = iwl_send_add_sta(priv, | |
505 | (struct iwl_addsta_cmd *)&priv->stations_39[sta_id].sta, CMD_ASYNC); | |
506 | ||
b481de9c ZY |
507 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
508 | ||
6e21f15c AK |
509 | return ret; |
510 | } | |
511 | ||
512 | static int iwl3945_set_tkip_dynamic_key_info(struct iwl_priv *priv, | |
513 | struct ieee80211_key_conf *keyconf, | |
514 | u8 sta_id) | |
515 | { | |
516 | return -EOPNOTSUPP; | |
517 | } | |
518 | ||
519 | static int iwl3945_set_wep_dynamic_key_info(struct iwl_priv *priv, | |
520 | struct ieee80211_key_conf *keyconf, | |
521 | u8 sta_id) | |
522 | { | |
523 | return -EOPNOTSUPP; | |
b481de9c ZY |
524 | } |
525 | ||
4a8a4322 | 526 | static int iwl3945_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id) |
b481de9c ZY |
527 | { |
528 | unsigned long flags; | |
529 | ||
530 | spin_lock_irqsave(&priv->sta_lock, flags); | |
f2c7e521 AK |
531 | memset(&priv->stations_39[sta_id].keyinfo, 0, sizeof(struct iwl3945_hw_key)); |
532 | memset(&priv->stations_39[sta_id].sta.key, 0, | |
4c897253 | 533 | sizeof(struct iwl4965_keyinfo)); |
f2c7e521 AK |
534 | priv->stations_39[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC; |
535 | priv->stations_39[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
536 | priv->stations_39[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
b481de9c ZY |
537 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
538 | ||
e1623446 | 539 | IWL_DEBUG_INFO(priv, "hwcrypto: clear ucode station key info\n"); |
17f841cd SO |
540 | iwl_send_add_sta(priv, |
541 | (struct iwl_addsta_cmd *)&priv->stations_39[sta_id].sta, 0); | |
b481de9c ZY |
542 | return 0; |
543 | } | |
544 | ||
fa11d525 | 545 | static int iwl3945_set_dynamic_key(struct iwl_priv *priv, |
6e21f15c AK |
546 | struct ieee80211_key_conf *keyconf, u8 sta_id) |
547 | { | |
548 | int ret = 0; | |
549 | ||
550 | keyconf->hw_key_idx = HW_KEY_DYNAMIC; | |
551 | ||
552 | switch (keyconf->alg) { | |
553 | case ALG_CCMP: | |
554 | ret = iwl3945_set_ccmp_dynamic_key_info(priv, keyconf, sta_id); | |
555 | break; | |
556 | case ALG_TKIP: | |
557 | ret = iwl3945_set_tkip_dynamic_key_info(priv, keyconf, sta_id); | |
558 | break; | |
559 | case ALG_WEP: | |
560 | ret = iwl3945_set_wep_dynamic_key_info(priv, keyconf, sta_id); | |
561 | break; | |
562 | default: | |
563 | IWL_ERR(priv,"Unknown alg: %s alg = %d\n", __func__, keyconf->alg); | |
564 | ret = -EINVAL; | |
565 | } | |
566 | ||
567 | IWL_DEBUG_WEP(priv, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n", | |
568 | keyconf->alg, keyconf->keylen, keyconf->keyidx, | |
569 | sta_id, ret); | |
570 | ||
571 | return ret; | |
572 | } | |
573 | ||
574 | static int iwl3945_remove_static_key(struct iwl_priv *priv) | |
575 | { | |
576 | int ret = -EOPNOTSUPP; | |
577 | ||
578 | return ret; | |
579 | } | |
580 | ||
581 | static int iwl3945_set_static_key(struct iwl_priv *priv, | |
582 | struct ieee80211_key_conf *key) | |
583 | { | |
584 | if (key->alg == ALG_WEP) | |
585 | return -EOPNOTSUPP; | |
586 | ||
587 | IWL_ERR(priv, "Static key invalid: alg %d\n", key->alg); | |
588 | return -EINVAL; | |
589 | } | |
590 | ||
4a8a4322 | 591 | static void iwl3945_clear_free_frames(struct iwl_priv *priv) |
b481de9c ZY |
592 | { |
593 | struct list_head *element; | |
594 | ||
e1623446 | 595 | IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n", |
b481de9c ZY |
596 | priv->frames_count); |
597 | ||
598 | while (!list_empty(&priv->free_frames)) { | |
599 | element = priv->free_frames.next; | |
600 | list_del(element); | |
bb8c093b | 601 | kfree(list_entry(element, struct iwl3945_frame, list)); |
b481de9c ZY |
602 | priv->frames_count--; |
603 | } | |
604 | ||
605 | if (priv->frames_count) { | |
39aadf8c | 606 | IWL_WARN(priv, "%d frames still in use. Did we lose one?\n", |
b481de9c ZY |
607 | priv->frames_count); |
608 | priv->frames_count = 0; | |
609 | } | |
610 | } | |
611 | ||
4a8a4322 | 612 | static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl_priv *priv) |
b481de9c | 613 | { |
bb8c093b | 614 | struct iwl3945_frame *frame; |
b481de9c ZY |
615 | struct list_head *element; |
616 | if (list_empty(&priv->free_frames)) { | |
617 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
618 | if (!frame) { | |
15b1687c | 619 | IWL_ERR(priv, "Could not allocate frame!\n"); |
b481de9c ZY |
620 | return NULL; |
621 | } | |
622 | ||
623 | priv->frames_count++; | |
624 | return frame; | |
625 | } | |
626 | ||
627 | element = priv->free_frames.next; | |
628 | list_del(element); | |
bb8c093b | 629 | return list_entry(element, struct iwl3945_frame, list); |
b481de9c ZY |
630 | } |
631 | ||
4a8a4322 | 632 | static void iwl3945_free_frame(struct iwl_priv *priv, struct iwl3945_frame *frame) |
b481de9c ZY |
633 | { |
634 | memset(frame, 0, sizeof(*frame)); | |
635 | list_add(&frame->list, &priv->free_frames); | |
636 | } | |
637 | ||
4a8a4322 | 638 | unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv, |
b481de9c | 639 | struct ieee80211_hdr *hdr, |
73ec1cc2 | 640 | int left) |
b481de9c ZY |
641 | { |
642 | ||
8ccde88a | 643 | if (!iwl_is_associated(priv) || !priv->ibss_beacon || |
05c914fe JB |
644 | ((priv->iw_mode != NL80211_IFTYPE_ADHOC) && |
645 | (priv->iw_mode != NL80211_IFTYPE_AP))) | |
b481de9c ZY |
646 | return 0; |
647 | ||
648 | if (priv->ibss_beacon->len > left) | |
649 | return 0; | |
650 | ||
651 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); | |
652 | ||
653 | return priv->ibss_beacon->len; | |
654 | } | |
655 | ||
4a8a4322 | 656 | static int iwl3945_send_beacon_cmd(struct iwl_priv *priv) |
b481de9c | 657 | { |
bb8c093b | 658 | struct iwl3945_frame *frame; |
b481de9c ZY |
659 | unsigned int frame_size; |
660 | int rc; | |
661 | u8 rate; | |
662 | ||
bb8c093b | 663 | frame = iwl3945_get_free_frame(priv); |
b481de9c ZY |
664 | |
665 | if (!frame) { | |
15b1687c | 666 | IWL_ERR(priv, "Could not obtain free frame buffer for beacon " |
b481de9c ZY |
667 | "command.\n"); |
668 | return -ENOMEM; | |
669 | } | |
670 | ||
8ccde88a | 671 | rate = iwl_rate_get_lowest_plcp(priv); |
b481de9c | 672 | |
bb8c093b | 673 | frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate); |
b481de9c | 674 | |
518099a8 | 675 | rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
676 | &frame->u.cmd[0]); |
677 | ||
bb8c093b | 678 | iwl3945_free_frame(priv, frame); |
b481de9c ZY |
679 | |
680 | return rc; | |
681 | } | |
682 | ||
4a8a4322 | 683 | static void iwl3945_unset_hw_params(struct iwl_priv *priv) |
b481de9c | 684 | { |
3832ec9d | 685 | if (priv->shared_virt) |
b481de9c | 686 | pci_free_consistent(priv->pci_dev, |
bb8c093b | 687 | sizeof(struct iwl3945_shared), |
3832ec9d AK |
688 | priv->shared_virt, |
689 | priv->shared_phys); | |
b481de9c ZY |
690 | } |
691 | ||
b481de9c | 692 | #define MAX_UCODE_BEACON_INTERVAL 1024 |
c1b4aa3f | 693 | #define INTEL_CONN_LISTEN_INTERVAL cpu_to_le16(0xA) |
b481de9c | 694 | |
bb8c093b | 695 | static __le16 iwl3945_adjust_beacon_interval(u16 beacon_val) |
b481de9c ZY |
696 | { |
697 | u16 new_val = 0; | |
698 | u16 beacon_factor = 0; | |
699 | ||
700 | beacon_factor = | |
701 | (beacon_val + MAX_UCODE_BEACON_INTERVAL) | |
702 | / MAX_UCODE_BEACON_INTERVAL; | |
703 | new_val = beacon_val / beacon_factor; | |
704 | ||
705 | return cpu_to_le16(new_val); | |
706 | } | |
707 | ||
4a8a4322 | 708 | static void iwl3945_setup_rxon_timing(struct iwl_priv *priv) |
b481de9c ZY |
709 | { |
710 | u64 interval_tm_unit; | |
711 | u64 tsf, result; | |
712 | unsigned long flags; | |
713 | struct ieee80211_conf *conf = NULL; | |
714 | u16 beacon_int = 0; | |
715 | ||
716 | conf = ieee80211_get_hw_conf(priv->hw); | |
717 | ||
718 | spin_lock_irqsave(&priv->lock, flags); | |
28afaf91 | 719 | priv->rxon_timing.timestamp = cpu_to_le64(priv->timestamp); |
b481de9c ZY |
720 | priv->rxon_timing.listen_interval = INTEL_CONN_LISTEN_INTERVAL; |
721 | ||
28afaf91 | 722 | tsf = priv->timestamp; |
b481de9c ZY |
723 | |
724 | beacon_int = priv->beacon_int; | |
725 | spin_unlock_irqrestore(&priv->lock, flags); | |
726 | ||
05c914fe | 727 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
b481de9c ZY |
728 | if (beacon_int == 0) { |
729 | priv->rxon_timing.beacon_interval = cpu_to_le16(100); | |
730 | priv->rxon_timing.beacon_init_val = cpu_to_le32(102400); | |
731 | } else { | |
732 | priv->rxon_timing.beacon_interval = | |
733 | cpu_to_le16(beacon_int); | |
734 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 735 | iwl3945_adjust_beacon_interval( |
b481de9c ZY |
736 | le16_to_cpu(priv->rxon_timing.beacon_interval)); |
737 | } | |
738 | ||
739 | priv->rxon_timing.atim_window = 0; | |
740 | } else { | |
741 | priv->rxon_timing.beacon_interval = | |
bb8c093b | 742 | iwl3945_adjust_beacon_interval(conf->beacon_int); |
b481de9c ZY |
743 | /* TODO: we need to get atim_window from upper stack |
744 | * for now we set to 0 */ | |
745 | priv->rxon_timing.atim_window = 0; | |
746 | } | |
747 | ||
748 | interval_tm_unit = | |
749 | (le16_to_cpu(priv->rxon_timing.beacon_interval) * 1024); | |
750 | result = do_div(tsf, interval_tm_unit); | |
751 | priv->rxon_timing.beacon_init_val = | |
752 | cpu_to_le32((u32) ((u64) interval_tm_unit - result)); | |
753 | ||
e1623446 TW |
754 | IWL_DEBUG_ASSOC(priv, |
755 | "beacon interval %d beacon timer %d beacon tim %d\n", | |
b481de9c ZY |
756 | le16_to_cpu(priv->rxon_timing.beacon_interval), |
757 | le32_to_cpu(priv->rxon_timing.beacon_init_val), | |
758 | le16_to_cpu(priv->rxon_timing.atim_window)); | |
759 | } | |
760 | ||
4a8a4322 | 761 | static int iwl3945_set_mode(struct iwl_priv *priv, int mode) |
b481de9c | 762 | { |
05c914fe | 763 | if (mode == NL80211_IFTYPE_ADHOC) { |
d20b3c65 | 764 | const struct iwl_channel_info *ch_info; |
b481de9c | 765 | |
e6148917 | 766 | ch_info = iwl_get_channel_info(priv, |
8318d78a | 767 | priv->band, |
8ccde88a | 768 | le16_to_cpu(priv->staging_rxon.channel)); |
b481de9c ZY |
769 | |
770 | if (!ch_info || !is_channel_ibss(ch_info)) { | |
15b1687c | 771 | IWL_ERR(priv, "channel %d not IBSS channel\n", |
8ccde88a | 772 | le16_to_cpu(priv->staging_rxon.channel)); |
b481de9c ZY |
773 | return -EINVAL; |
774 | } | |
775 | } | |
776 | ||
8ccde88a | 777 | iwl_connection_init_rx_config(priv, mode); |
b481de9c | 778 | |
bb8c093b | 779 | iwl3945_clear_stations_table(priv); |
b481de9c | 780 | |
a96a27f9 | 781 | /* don't commit rxon if rf-kill is on*/ |
775a6e27 | 782 | if (!iwl_is_ready_rf(priv)) |
fde3571f MA |
783 | return -EAGAIN; |
784 | ||
785 | cancel_delayed_work(&priv->scan_check); | |
af0053d6 | 786 | if (iwl_scan_cancel_timeout(priv, 100)) { |
39aadf8c | 787 | IWL_WARN(priv, "Aborted scan still in progress after 100ms\n"); |
e1623446 | 788 | IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n"); |
fde3571f MA |
789 | return -EAGAIN; |
790 | } | |
791 | ||
bb8c093b | 792 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
793 | |
794 | return 0; | |
795 | } | |
796 | ||
4a8a4322 | 797 | static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv, |
e039fa4a | 798 | struct ieee80211_tx_info *info, |
c2d79b48 | 799 | struct iwl_cmd *cmd, |
b481de9c | 800 | struct sk_buff *skb_frag, |
6e21f15c | 801 | int sta_id) |
b481de9c | 802 | { |
e52119c5 | 803 | struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload; |
1c014420 | 804 | struct iwl3945_hw_key *keyinfo = |
6e21f15c | 805 | &priv->stations_39[sta_id].keyinfo; |
b481de9c ZY |
806 | |
807 | switch (keyinfo->alg) { | |
808 | case ALG_CCMP: | |
e52119c5 WT |
809 | tx->sec_ctl = TX_CMD_SEC_CCM; |
810 | memcpy(tx->key, keyinfo->key, keyinfo->keylen); | |
e1623446 | 811 | IWL_DEBUG_TX(priv, "tx_cmd with AES hwcrypto\n"); |
b481de9c ZY |
812 | break; |
813 | ||
814 | case ALG_TKIP: | |
b481de9c ZY |
815 | break; |
816 | ||
817 | case ALG_WEP: | |
e52119c5 | 818 | tx->sec_ctl = TX_CMD_SEC_WEP | |
e039fa4a | 819 | (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT; |
b481de9c ZY |
820 | |
821 | if (keyinfo->keylen == 13) | |
e52119c5 | 822 | tx->sec_ctl |= TX_CMD_SEC_KEY128; |
b481de9c | 823 | |
e52119c5 | 824 | memcpy(&tx->key[3], keyinfo->key, keyinfo->keylen); |
b481de9c | 825 | |
e1623446 | 826 | IWL_DEBUG_TX(priv, "Configuring packet for WEP encryption " |
e039fa4a | 827 | "with key %d\n", info->control.hw_key->hw_key_idx); |
b481de9c ZY |
828 | break; |
829 | ||
b481de9c | 830 | default: |
978785a3 | 831 | IWL_ERR(priv, "Unknown encode alg %d\n", keyinfo->alg); |
b481de9c ZY |
832 | break; |
833 | } | |
834 | } | |
835 | ||
836 | /* | |
837 | * handle build REPLY_TX command notification. | |
838 | */ | |
4a8a4322 | 839 | static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv, |
c2d79b48 | 840 | struct iwl_cmd *cmd, |
e039fa4a | 841 | struct ieee80211_tx_info *info, |
e52119c5 | 842 | struct ieee80211_hdr *hdr, u8 std_id) |
b481de9c | 843 | { |
e52119c5 WT |
844 | struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload; |
845 | __le32 tx_flags = tx->tx_flags; | |
fd7c8a40 | 846 | __le16 fc = hdr->frame_control; |
e6a9854b | 847 | u8 rc_flags = info->control.rates[0].flags; |
b481de9c | 848 | |
e52119c5 | 849 | tx->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
e039fa4a | 850 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
b481de9c | 851 | tx_flags |= TX_CMD_FLG_ACK_MSK; |
fd7c8a40 | 852 | if (ieee80211_is_mgmt(fc)) |
b481de9c | 853 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
fd7c8a40 | 854 | if (ieee80211_is_probe_resp(fc) && |
b481de9c ZY |
855 | !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) |
856 | tx_flags |= TX_CMD_FLG_TSF_MSK; | |
857 | } else { | |
858 | tx_flags &= (~TX_CMD_FLG_ACK_MSK); | |
859 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; | |
860 | } | |
861 | ||
e52119c5 | 862 | tx->sta_id = std_id; |
8b7b1e05 | 863 | if (ieee80211_has_morefrags(fc)) |
b481de9c ZY |
864 | tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; |
865 | ||
fd7c8a40 HH |
866 | if (ieee80211_is_data_qos(fc)) { |
867 | u8 *qc = ieee80211_get_qos_ctl(hdr); | |
e52119c5 | 868 | tx->tid_tspec = qc[0] & 0xf; |
b481de9c | 869 | tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 870 | } else { |
b481de9c | 871 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 872 | } |
b481de9c | 873 | |
e6a9854b | 874 | if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) { |
b481de9c ZY |
875 | tx_flags |= TX_CMD_FLG_RTS_MSK; |
876 | tx_flags &= ~TX_CMD_FLG_CTS_MSK; | |
e6a9854b | 877 | } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { |
b481de9c ZY |
878 | tx_flags &= ~TX_CMD_FLG_RTS_MSK; |
879 | tx_flags |= TX_CMD_FLG_CTS_MSK; | |
880 | } | |
881 | ||
882 | if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK)) | |
883 | tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; | |
884 | ||
885 | tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); | |
fd7c8a40 HH |
886 | if (ieee80211_is_mgmt(fc)) { |
887 | if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) | |
e52119c5 | 888 | tx->timeout.pm_frame_timeout = cpu_to_le16(3); |
b481de9c | 889 | else |
e52119c5 | 890 | tx->timeout.pm_frame_timeout = cpu_to_le16(2); |
ab53d8af | 891 | } else { |
e52119c5 | 892 | tx->timeout.pm_frame_timeout = 0; |
5c8df2d5 | 893 | #ifdef CONFIG_IWLWIFI_LEDS |
ab53d8af MA |
894 | priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len); |
895 | #endif | |
896 | } | |
b481de9c | 897 | |
e52119c5 WT |
898 | tx->driver_txop = 0; |
899 | tx->tx_flags = tx_flags; | |
900 | tx->next_frame_len = 0; | |
b481de9c ZY |
901 | } |
902 | ||
6440adb5 BC |
903 | /** |
904 | * iwl3945_get_sta_id - Find station's index within station table | |
905 | */ | |
4a8a4322 | 906 | static int iwl3945_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr) |
b481de9c ZY |
907 | { |
908 | int sta_id; | |
909 | u16 fc = le16_to_cpu(hdr->frame_control); | |
910 | ||
6440adb5 | 911 | /* If this frame is broadcast or management, use broadcast station id */ |
b481de9c ZY |
912 | if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) || |
913 | is_multicast_ether_addr(hdr->addr1)) | |
3832ec9d | 914 | return priv->hw_params.bcast_sta_id; |
b481de9c ZY |
915 | |
916 | switch (priv->iw_mode) { | |
917 | ||
6440adb5 BC |
918 | /* If we are a client station in a BSS network, use the special |
919 | * AP station entry (that's the only station we communicate with) */ | |
05c914fe | 920 | case NL80211_IFTYPE_STATION: |
b481de9c ZY |
921 | return IWL_AP_ID; |
922 | ||
923 | /* If we are an AP, then find the station, or use BCAST */ | |
05c914fe | 924 | case NL80211_IFTYPE_AP: |
bb8c093b | 925 | sta_id = iwl3945_hw_find_station(priv, hdr->addr1); |
b481de9c ZY |
926 | if (sta_id != IWL_INVALID_STATION) |
927 | return sta_id; | |
3832ec9d | 928 | return priv->hw_params.bcast_sta_id; |
b481de9c | 929 | |
6440adb5 BC |
930 | /* If this frame is going out to an IBSS network, find the station, |
931 | * or create a new station table entry */ | |
05c914fe | 932 | case NL80211_IFTYPE_ADHOC: { |
6440adb5 | 933 | /* Create new station table entry */ |
bb8c093b | 934 | sta_id = iwl3945_hw_find_station(priv, hdr->addr1); |
b481de9c ZY |
935 | if (sta_id != IWL_INVALID_STATION) |
936 | return sta_id; | |
937 | ||
bb8c093b | 938 | sta_id = iwl3945_add_station(priv, hdr->addr1, 0, CMD_ASYNC); |
b481de9c ZY |
939 | |
940 | if (sta_id != IWL_INVALID_STATION) | |
941 | return sta_id; | |
942 | ||
e1623446 | 943 | IWL_DEBUG_DROP(priv, "Station %pM not in station map. " |
b481de9c | 944 | "Defaulting to broadcast...\n", |
e174961c | 945 | hdr->addr1); |
40b8ec0b | 946 | iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr)); |
3832ec9d | 947 | return priv->hw_params.bcast_sta_id; |
0795af57 | 948 | } |
914233d6 SG |
949 | /* If we are in monitor mode, use BCAST. This is required for |
950 | * packet injection. */ | |
05c914fe | 951 | case NL80211_IFTYPE_MONITOR: |
3832ec9d | 952 | return priv->hw_params.bcast_sta_id; |
914233d6 | 953 | |
b481de9c | 954 | default: |
39aadf8c WT |
955 | IWL_WARN(priv, "Unknown mode of operation: %d\n", |
956 | priv->iw_mode); | |
3832ec9d | 957 | return priv->hw_params.bcast_sta_id; |
b481de9c ZY |
958 | } |
959 | } | |
960 | ||
961 | /* | |
962 | * start REPLY_TX command process | |
963 | */ | |
4a8a4322 | 964 | static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) |
b481de9c ZY |
965 | { |
966 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; | |
e039fa4a | 967 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
e52119c5 | 968 | struct iwl3945_tx_cmd *tx; |
188cf6c7 | 969 | struct iwl_tx_queue *txq = NULL; |
d20b3c65 | 970 | struct iwl_queue *q = NULL; |
e52119c5 | 971 | struct iwl_cmd *out_cmd = NULL; |
b481de9c ZY |
972 | dma_addr_t phys_addr; |
973 | dma_addr_t txcmd_phys; | |
e52119c5 | 974 | int txq_id = skb_get_queue_mapping(skb); |
54dbb525 TW |
975 | u16 len, idx, len_org, hdr_len; |
976 | u8 id; | |
977 | u8 unicast; | |
b481de9c | 978 | u8 sta_id; |
54dbb525 | 979 | u8 tid = 0; |
b481de9c | 980 | u16 seq_number = 0; |
fd7c8a40 | 981 | __le16 fc; |
b481de9c | 982 | u8 wait_write_ptr = 0; |
54dbb525 | 983 | u8 *qc = NULL; |
b481de9c ZY |
984 | unsigned long flags; |
985 | int rc; | |
986 | ||
987 | spin_lock_irqsave(&priv->lock, flags); | |
775a6e27 | 988 | if (iwl_is_rfkill(priv)) { |
e1623446 | 989 | IWL_DEBUG_DROP(priv, "Dropping - RF KILL\n"); |
b481de9c ZY |
990 | goto drop_unlock; |
991 | } | |
992 | ||
e039fa4a | 993 | if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) { |
15b1687c | 994 | IWL_ERR(priv, "ERROR: No TX rate available.\n"); |
b481de9c ZY |
995 | goto drop_unlock; |
996 | } | |
997 | ||
998 | unicast = !is_multicast_ether_addr(hdr->addr1); | |
999 | id = 0; | |
1000 | ||
fd7c8a40 | 1001 | fc = hdr->frame_control; |
b481de9c | 1002 | |
d08853a3 | 1003 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c | 1004 | if (ieee80211_is_auth(fc)) |
e1623446 | 1005 | IWL_DEBUG_TX(priv, "Sending AUTH frame\n"); |
fd7c8a40 | 1006 | else if (ieee80211_is_assoc_req(fc)) |
e1623446 | 1007 | IWL_DEBUG_TX(priv, "Sending ASSOC frame\n"); |
fd7c8a40 | 1008 | else if (ieee80211_is_reassoc_req(fc)) |
e1623446 | 1009 | IWL_DEBUG_TX(priv, "Sending REASSOC frame\n"); |
b481de9c ZY |
1010 | #endif |
1011 | ||
7878a5a4 | 1012 | /* drop all data frame if we are not associated */ |
914233d6 | 1013 | if (ieee80211_is_data(fc) && |
05c914fe | 1014 | (priv->iw_mode != NL80211_IFTYPE_MONITOR) && /* packet injection */ |
8ccde88a | 1015 | (!iwl_is_associated(priv) || |
05c914fe | 1016 | ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) { |
e1623446 | 1017 | IWL_DEBUG_DROP(priv, "Dropping - !iwl_is_associated\n"); |
b481de9c ZY |
1018 | goto drop_unlock; |
1019 | } | |
1020 | ||
1021 | spin_unlock_irqrestore(&priv->lock, flags); | |
1022 | ||
7294ec95 | 1023 | hdr_len = ieee80211_hdrlen(fc); |
6440adb5 BC |
1024 | |
1025 | /* Find (or create) index into station table for destination station */ | |
bb8c093b | 1026 | sta_id = iwl3945_get_sta_id(priv, hdr); |
b481de9c | 1027 | if (sta_id == IWL_INVALID_STATION) { |
e1623446 | 1028 | IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n", |
e174961c | 1029 | hdr->addr1); |
b481de9c ZY |
1030 | goto drop; |
1031 | } | |
1032 | ||
e1623446 | 1033 | IWL_DEBUG_RATE(priv, "station Id %d\n", sta_id); |
b481de9c | 1034 | |
fd7c8a40 HH |
1035 | if (ieee80211_is_data_qos(fc)) { |
1036 | qc = ieee80211_get_qos_ctl(hdr); | |
7294ec95 | 1037 | tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; |
f2c7e521 | 1038 | seq_number = priv->stations_39[sta_id].tid[tid].seq_number & |
b481de9c ZY |
1039 | IEEE80211_SCTL_SEQ; |
1040 | hdr->seq_ctrl = cpu_to_le16(seq_number) | | |
1041 | (hdr->seq_ctrl & | |
c1b4aa3f | 1042 | cpu_to_le16(IEEE80211_SCTL_FRAG)); |
b481de9c ZY |
1043 | seq_number += 0x10; |
1044 | } | |
6440adb5 BC |
1045 | |
1046 | /* Descriptor for chosen Tx queue */ | |
188cf6c7 | 1047 | txq = &priv->txq[txq_id]; |
b481de9c ZY |
1048 | q = &txq->q; |
1049 | ||
1050 | spin_lock_irqsave(&priv->lock, flags); | |
1051 | ||
fc4b6853 | 1052 | idx = get_cmd_index(q, q->write_ptr, 0); |
b481de9c | 1053 | |
6440adb5 | 1054 | /* Set up driver data for this TFD */ |
dbb6654c | 1055 | memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info)); |
fc4b6853 | 1056 | txq->txb[q->write_ptr].skb[0] = skb; |
6440adb5 BC |
1057 | |
1058 | /* Init first empty entry in queue's array of Tx/cmd buffers */ | |
188cf6c7 | 1059 | out_cmd = txq->cmd[idx]; |
e52119c5 | 1060 | tx = (struct iwl3945_tx_cmd *)out_cmd->cmd.payload; |
b481de9c | 1061 | memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); |
e52119c5 | 1062 | memset(tx, 0, sizeof(*tx)); |
6440adb5 BC |
1063 | |
1064 | /* | |
1065 | * Set up the Tx-command (not MAC!) header. | |
1066 | * Store the chosen Tx queue and TFD index within the sequence field; | |
1067 | * after Tx, uCode's Tx response will return this value so driver can | |
1068 | * locate the frame within the tx queue and do post-tx processing. | |
1069 | */ | |
b481de9c ZY |
1070 | out_cmd->hdr.cmd = REPLY_TX; |
1071 | out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | | |
fc4b6853 | 1072 | INDEX_TO_SEQ(q->write_ptr))); |
6440adb5 BC |
1073 | |
1074 | /* Copy MAC header from skb into command buffer */ | |
e52119c5 | 1075 | memcpy(tx->hdr, hdr, hdr_len); |
b481de9c | 1076 | |
6440adb5 BC |
1077 | /* |
1078 | * Use the first empty entry in this queue's command buffer array | |
1079 | * to contain the Tx command and MAC header concatenated together | |
1080 | * (payload data will be in another buffer). | |
1081 | * Size of this varies, due to varying MAC header length. | |
1082 | * If end is not dword aligned, we'll have 2 extra bytes at the end | |
1083 | * of the MAC header (device reads on dword boundaries). | |
1084 | * We'll tell device about this padding later. | |
1085 | */ | |
3832ec9d | 1086 | len = sizeof(struct iwl3945_tx_cmd) + |
4c897253 | 1087 | sizeof(struct iwl_cmd_header) + hdr_len; |
b481de9c ZY |
1088 | |
1089 | len_org = len; | |
1090 | len = (len + 3) & ~3; | |
1091 | ||
1092 | if (len_org != len) | |
1093 | len_org = 1; | |
1094 | else | |
1095 | len_org = 0; | |
1096 | ||
6440adb5 BC |
1097 | /* Physical address of this Tx command's header (not MAC header!), |
1098 | * within command buffer array. */ | |
188cf6c7 SO |
1099 | txcmd_phys = pci_map_single(priv->pci_dev, |
1100 | out_cmd, sizeof(struct iwl_cmd), | |
1101 | PCI_DMA_TODEVICE); | |
1102 | pci_unmap_addr_set(&out_cmd->meta, mapping, txcmd_phys); | |
1103 | pci_unmap_len_set(&out_cmd->meta, len, sizeof(struct iwl_cmd)); | |
1104 | /* Add buffer containing Tx command and MAC(!) header to TFD's | |
1105 | * first entry */ | |
1106 | txcmd_phys += offsetof(struct iwl_cmd, hdr); | |
b481de9c | 1107 | |
6440adb5 BC |
1108 | /* Add buffer containing Tx command and MAC(!) header to TFD's |
1109 | * first entry */ | |
7aaa1d79 SO |
1110 | priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq, |
1111 | txcmd_phys, len, 1, 0); | |
b481de9c | 1112 | |
d0f09804 | 1113 | if (info->control.hw_key) |
6e21f15c | 1114 | iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, sta_id); |
b481de9c | 1115 | |
6440adb5 BC |
1116 | /* Set up TFD's 2nd entry to point directly to remainder of skb, |
1117 | * if any (802.11 null frames have no payload). */ | |
b481de9c ZY |
1118 | len = skb->len - hdr_len; |
1119 | if (len) { | |
1120 | phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len, | |
1121 | len, PCI_DMA_TODEVICE); | |
7aaa1d79 SO |
1122 | priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq, |
1123 | phys_addr, len, | |
1124 | 0, U32_PAD(len)); | |
b481de9c ZY |
1125 | } |
1126 | ||
6440adb5 | 1127 | /* Total # bytes to be transmitted */ |
b481de9c | 1128 | len = (u16)skb->len; |
e52119c5 | 1129 | tx->len = cpu_to_le16(len); |
b481de9c ZY |
1130 | |
1131 | /* TODO need this for burst mode later on */ | |
e52119c5 | 1132 | iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, sta_id); |
b481de9c ZY |
1133 | |
1134 | /* set is_hcca to 0; it probably will never be implemented */ | |
e039fa4a | 1135 | iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0); |
b481de9c | 1136 | |
e52119c5 WT |
1137 | tx->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; |
1138 | tx->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; | |
b481de9c | 1139 | |
8b7b1e05 | 1140 | if (!ieee80211_has_morefrags(hdr->frame_control)) { |
b481de9c | 1141 | txq->need_update = 1; |
3ac7f146 | 1142 | if (qc) |
f2c7e521 | 1143 | priv->stations_39[sta_id].tid[tid].seq_number = seq_number; |
b481de9c ZY |
1144 | } else { |
1145 | wait_write_ptr = 1; | |
1146 | txq->need_update = 0; | |
1147 | } | |
1148 | ||
e52119c5 | 1149 | iwl_print_hex_dump(priv, IWL_DL_TX, tx, sizeof(*tx)); |
b481de9c | 1150 | |
e52119c5 | 1151 | iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx->hdr, |
7294ec95 | 1152 | ieee80211_hdrlen(fc)); |
b481de9c | 1153 | |
6440adb5 | 1154 | /* Tell device the write index *just past* this latest filled TFD */ |
c54b679d | 1155 | q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); |
4f3602c8 | 1156 | rc = iwl_txq_update_write_ptr(priv, txq); |
b481de9c ZY |
1157 | spin_unlock_irqrestore(&priv->lock, flags); |
1158 | ||
1159 | if (rc) | |
1160 | return rc; | |
1161 | ||
d20b3c65 | 1162 | if ((iwl_queue_space(q) < q->high_mark) |
b481de9c ZY |
1163 | && priv->mac80211_registered) { |
1164 | if (wait_write_ptr) { | |
1165 | spin_lock_irqsave(&priv->lock, flags); | |
1166 | txq->need_update = 1; | |
4f3602c8 | 1167 | iwl_txq_update_write_ptr(priv, txq); |
b481de9c ZY |
1168 | spin_unlock_irqrestore(&priv->lock, flags); |
1169 | } | |
1170 | ||
e2530083 | 1171 | ieee80211_stop_queue(priv->hw, skb_get_queue_mapping(skb)); |
b481de9c ZY |
1172 | } |
1173 | ||
1174 | return 0; | |
1175 | ||
1176 | drop_unlock: | |
1177 | spin_unlock_irqrestore(&priv->lock, flags); | |
1178 | drop: | |
1179 | return -1; | |
1180 | } | |
1181 | ||
c8b0e6e1 | 1182 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
1183 | |
1184 | #include "iwl-spectrum.h" | |
1185 | ||
1186 | #define BEACON_TIME_MASK_LOW 0x00FFFFFF | |
1187 | #define BEACON_TIME_MASK_HIGH 0xFF000000 | |
1188 | #define TIME_UNIT 1024 | |
1189 | ||
1190 | /* | |
1191 | * extended beacon time format | |
1192 | * time in usec will be changed into a 32-bit value in 8:24 format | |
1193 | * the high 1 byte is the beacon counts | |
1194 | * the lower 3 bytes is the time in usec within one beacon interval | |
1195 | */ | |
1196 | ||
bb8c093b | 1197 | static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval) |
b481de9c ZY |
1198 | { |
1199 | u32 quot; | |
1200 | u32 rem; | |
1201 | u32 interval = beacon_interval * 1024; | |
1202 | ||
1203 | if (!interval || !usec) | |
1204 | return 0; | |
1205 | ||
1206 | quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); | |
1207 | rem = (usec % interval) & BEACON_TIME_MASK_LOW; | |
1208 | ||
1209 | return (quot << 24) + rem; | |
1210 | } | |
1211 | ||
1212 | /* base is usually what we get from ucode with each received frame, | |
1213 | * the same as HW timer counter counting down | |
1214 | */ | |
1215 | ||
bb8c093b | 1216 | static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) |
b481de9c ZY |
1217 | { |
1218 | u32 base_low = base & BEACON_TIME_MASK_LOW; | |
1219 | u32 addon_low = addon & BEACON_TIME_MASK_LOW; | |
1220 | u32 interval = beacon_interval * TIME_UNIT; | |
1221 | u32 res = (base & BEACON_TIME_MASK_HIGH) + | |
1222 | (addon & BEACON_TIME_MASK_HIGH); | |
1223 | ||
1224 | if (base_low > addon_low) | |
1225 | res += base_low - addon_low; | |
1226 | else if (base_low < addon_low) { | |
1227 | res += interval + base_low - addon_low; | |
1228 | res += (1 << 24); | |
1229 | } else | |
1230 | res += (1 << 24); | |
1231 | ||
1232 | return cpu_to_le32(res); | |
1233 | } | |
1234 | ||
4a8a4322 | 1235 | static int iwl3945_get_measurement(struct iwl_priv *priv, |
b481de9c ZY |
1236 | struct ieee80211_measurement_params *params, |
1237 | u8 type) | |
1238 | { | |
600c0e11 | 1239 | struct iwl_spectrum_cmd spectrum; |
3d24a9f7 | 1240 | struct iwl_rx_packet *res; |
c2d79b48 | 1241 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
1242 | .id = REPLY_SPECTRUM_MEASUREMENT_CMD, |
1243 | .data = (void *)&spectrum, | |
1244 | .meta.flags = CMD_WANT_SKB, | |
1245 | }; | |
1246 | u32 add_time = le64_to_cpu(params->start_time); | |
1247 | int rc; | |
1248 | int spectrum_resp_status; | |
1249 | int duration = le16_to_cpu(params->duration); | |
1250 | ||
8ccde88a | 1251 | if (iwl_is_associated(priv)) |
b481de9c | 1252 | add_time = |
bb8c093b | 1253 | iwl3945_usecs_to_beacons( |
b481de9c ZY |
1254 | le64_to_cpu(params->start_time) - priv->last_tsf, |
1255 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
1256 | ||
1257 | memset(&spectrum, 0, sizeof(spectrum)); | |
1258 | ||
1259 | spectrum.channel_count = cpu_to_le16(1); | |
1260 | spectrum.flags = | |
1261 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; | |
1262 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; | |
1263 | cmd.len = sizeof(spectrum); | |
1264 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); | |
1265 | ||
8ccde88a | 1266 | if (iwl_is_associated(priv)) |
b481de9c | 1267 | spectrum.start_time = |
bb8c093b | 1268 | iwl3945_add_beacon_time(priv->last_beacon_time, |
b481de9c ZY |
1269 | add_time, |
1270 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
1271 | else | |
1272 | spectrum.start_time = 0; | |
1273 | ||
1274 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); | |
1275 | spectrum.channels[0].channel = params->channel; | |
1276 | spectrum.channels[0].type = type; | |
8ccde88a | 1277 | if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) |
b481de9c ZY |
1278 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | |
1279 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; | |
1280 | ||
518099a8 | 1281 | rc = iwl_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
1282 | if (rc) |
1283 | return rc; | |
1284 | ||
3d24a9f7 | 1285 | res = (struct iwl_rx_packet *)cmd.meta.u.skb->data; |
b481de9c | 1286 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
15b1687c | 1287 | IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n"); |
b481de9c ZY |
1288 | rc = -EIO; |
1289 | } | |
1290 | ||
1291 | spectrum_resp_status = le16_to_cpu(res->u.spectrum.status); | |
1292 | switch (spectrum_resp_status) { | |
1293 | case 0: /* Command will be handled */ | |
1294 | if (res->u.spectrum.id != 0xff) { | |
e1623446 | 1295 | IWL_DEBUG_INFO(priv, "Replaced existing measurement: %d\n", |
bc434dd2 | 1296 | res->u.spectrum.id); |
b481de9c ZY |
1297 | priv->measurement_status &= ~MEASUREMENT_READY; |
1298 | } | |
1299 | priv->measurement_status |= MEASUREMENT_ACTIVE; | |
1300 | rc = 0; | |
1301 | break; | |
1302 | ||
1303 | case 1: /* Command will not be handled */ | |
1304 | rc = -EAGAIN; | |
1305 | break; | |
1306 | } | |
1307 | ||
1308 | dev_kfree_skb_any(cmd.meta.u.skb); | |
1309 | ||
1310 | return rc; | |
1311 | } | |
1312 | #endif | |
1313 | ||
4a8a4322 | 1314 | static void iwl3945_rx_reply_alive(struct iwl_priv *priv, |
6100b588 | 1315 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1316 | { |
3d24a9f7 TW |
1317 | struct iwl_rx_packet *pkt = (void *)rxb->skb->data; |
1318 | struct iwl_alive_resp *palive; | |
b481de9c ZY |
1319 | struct delayed_work *pwork; |
1320 | ||
1321 | palive = &pkt->u.alive_frame; | |
1322 | ||
e1623446 | 1323 | IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision " |
b481de9c ZY |
1324 | "0x%01X 0x%01X\n", |
1325 | palive->is_valid, palive->ver_type, | |
1326 | palive->ver_subtype); | |
1327 | ||
1328 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
e1623446 | 1329 | IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); |
3d24a9f7 TW |
1330 | memcpy(&priv->card_alive_init, &pkt->u.alive_frame, |
1331 | sizeof(struct iwl_alive_resp)); | |
b481de9c ZY |
1332 | pwork = &priv->init_alive_start; |
1333 | } else { | |
e1623446 | 1334 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
b481de9c | 1335 | memcpy(&priv->card_alive, &pkt->u.alive_frame, |
3d24a9f7 | 1336 | sizeof(struct iwl_alive_resp)); |
b481de9c | 1337 | pwork = &priv->alive_start; |
bb8c093b | 1338 | iwl3945_disable_events(priv); |
b481de9c ZY |
1339 | } |
1340 | ||
1341 | /* We delay the ALIVE response by 5ms to | |
1342 | * give the HW RF Kill time to activate... */ | |
1343 | if (palive->is_valid == UCODE_VALID_OK) | |
1344 | queue_delayed_work(priv->workqueue, pwork, | |
1345 | msecs_to_jiffies(5)); | |
1346 | else | |
39aadf8c | 1347 | IWL_WARN(priv, "uCode did not respond OK.\n"); |
b481de9c ZY |
1348 | } |
1349 | ||
4a8a4322 | 1350 | static void iwl3945_rx_reply_add_sta(struct iwl_priv *priv, |
6100b588 | 1351 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1352 | { |
c7e035a9 | 1353 | #ifdef CONFIG_IWLWIFI_DEBUG |
3d24a9f7 | 1354 | struct iwl_rx_packet *pkt = (void *)rxb->skb->data; |
c7e035a9 | 1355 | #endif |
b481de9c | 1356 | |
e1623446 | 1357 | IWL_DEBUG_RX(priv, "Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status); |
b481de9c ZY |
1358 | return; |
1359 | } | |
1360 | ||
bb8c093b | 1361 | static void iwl3945_bg_beacon_update(struct work_struct *work) |
b481de9c | 1362 | { |
4a8a4322 AK |
1363 | struct iwl_priv *priv = |
1364 | container_of(work, struct iwl_priv, beacon_update); | |
b481de9c ZY |
1365 | struct sk_buff *beacon; |
1366 | ||
1367 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 1368 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
1369 | |
1370 | if (!beacon) { | |
15b1687c | 1371 | IWL_ERR(priv, "update beacon failed\n"); |
b481de9c ZY |
1372 | return; |
1373 | } | |
1374 | ||
1375 | mutex_lock(&priv->mutex); | |
1376 | /* new beacon skb is allocated every time; dispose previous.*/ | |
1377 | if (priv->ibss_beacon) | |
1378 | dev_kfree_skb(priv->ibss_beacon); | |
1379 | ||
1380 | priv->ibss_beacon = beacon; | |
1381 | mutex_unlock(&priv->mutex); | |
1382 | ||
bb8c093b | 1383 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
1384 | } |
1385 | ||
4a8a4322 | 1386 | static void iwl3945_rx_beacon_notif(struct iwl_priv *priv, |
6100b588 | 1387 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1388 | { |
d08853a3 | 1389 | #ifdef CONFIG_IWLWIFI_DEBUG |
3d24a9f7 | 1390 | struct iwl_rx_packet *pkt = (void *)rxb->skb->data; |
bb8c093b | 1391 | struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status); |
b481de9c ZY |
1392 | u8 rate = beacon->beacon_notify_hdr.rate; |
1393 | ||
e1623446 | 1394 | IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d " |
b481de9c ZY |
1395 | "tsf %d %d rate %d\n", |
1396 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, | |
1397 | beacon->beacon_notify_hdr.failure_frame, | |
1398 | le32_to_cpu(beacon->ibss_mgr_status), | |
1399 | le32_to_cpu(beacon->high_tsf), | |
1400 | le32_to_cpu(beacon->low_tsf), rate); | |
1401 | #endif | |
1402 | ||
05c914fe | 1403 | if ((priv->iw_mode == NL80211_IFTYPE_AP) && |
b481de9c ZY |
1404 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) |
1405 | queue_work(priv->workqueue, &priv->beacon_update); | |
1406 | } | |
1407 | ||
b481de9c ZY |
1408 | /* Handle notification from uCode that card's power state is changing |
1409 | * due to software, hardware, or critical temperature RFKILL */ | |
4a8a4322 | 1410 | static void iwl3945_rx_card_state_notif(struct iwl_priv *priv, |
6100b588 | 1411 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1412 | { |
3d24a9f7 | 1413 | struct iwl_rx_packet *pkt = (void *)rxb->skb->data; |
b481de9c ZY |
1414 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
1415 | unsigned long status = priv->status; | |
1416 | ||
e1623446 | 1417 | IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s\n", |
b481de9c ZY |
1418 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", |
1419 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
1420 | ||
5d49f498 | 1421 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
1422 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
1423 | ||
1424 | if (flags & HW_CARD_DISABLED) | |
1425 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
1426 | else | |
1427 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
1428 | ||
1429 | ||
1430 | if (flags & SW_CARD_DISABLED) | |
1431 | set_bit(STATUS_RF_KILL_SW, &priv->status); | |
1432 | else | |
1433 | clear_bit(STATUS_RF_KILL_SW, &priv->status); | |
1434 | ||
af0053d6 | 1435 | iwl_scan_cancel(priv); |
b481de9c ZY |
1436 | |
1437 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
1438 | test_bit(STATUS_RF_KILL_HW, &priv->status)) || | |
1439 | (test_bit(STATUS_RF_KILL_SW, &status) != | |
1440 | test_bit(STATUS_RF_KILL_SW, &priv->status))) | |
1441 | queue_work(priv->workqueue, &priv->rf_kill); | |
1442 | else | |
1443 | wake_up_interruptible(&priv->wait_command_queue); | |
1444 | } | |
1445 | ||
1446 | /** | |
bb8c093b | 1447 | * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
1448 | * |
1449 | * Setup the RX handlers for each of the reply types sent from the uCode | |
1450 | * to the host. | |
1451 | * | |
1452 | * This function chains into the hardware specific files for them to setup | |
1453 | * any hardware specific handlers as well. | |
1454 | */ | |
4a8a4322 | 1455 | static void iwl3945_setup_rx_handlers(struct iwl_priv *priv) |
b481de9c | 1456 | { |
bb8c093b CH |
1457 | priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive; |
1458 | priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta; | |
261b9c33 | 1459 | priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error; |
8ccde88a | 1460 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa; |
030f05ed | 1461 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif; |
b481de9c | 1462 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
030f05ed | 1463 | iwl_rx_pm_debug_statistics_notif; |
bb8c093b | 1464 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif; |
b481de9c | 1465 | |
9fbab516 BC |
1466 | /* |
1467 | * The same handler is used for both the REPLY to a discrete | |
1468 | * statistics request from the host as well as for the periodic | |
1469 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 1470 | */ |
bb8c093b CH |
1471 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics; |
1472 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics; | |
b481de9c | 1473 | |
261b9c33 | 1474 | iwl_setup_spectrum_handlers(priv); |
cade0eb2 | 1475 | iwl_setup_rx_scan_handlers(priv); |
bb8c093b | 1476 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif; |
b481de9c | 1477 | |
9fbab516 | 1478 | /* Set up hardware specific Rx handlers */ |
bb8c093b | 1479 | iwl3945_hw_rx_handler_setup(priv); |
b481de9c ZY |
1480 | } |
1481 | ||
91c066f2 TW |
1482 | /** |
1483 | * iwl3945_cmd_queue_reclaim - Reclaim CMD queue entries | |
1484 | * When FW advances 'R' index, all entries between old and new 'R' index | |
1485 | * need to be reclaimed. | |
1486 | */ | |
4a8a4322 | 1487 | static void iwl3945_cmd_queue_reclaim(struct iwl_priv *priv, |
91c066f2 TW |
1488 | int txq_id, int index) |
1489 | { | |
188cf6c7 | 1490 | struct iwl_tx_queue *txq = &priv->txq[txq_id]; |
d20b3c65 | 1491 | struct iwl_queue *q = &txq->q; |
91c066f2 TW |
1492 | int nfreed = 0; |
1493 | ||
625a381a | 1494 | if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) { |
15b1687c | 1495 | IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, " |
91c066f2 TW |
1496 | "is out of range [0-%d] %d %d.\n", txq_id, |
1497 | index, q->n_bd, q->write_ptr, q->read_ptr); | |
1498 | return; | |
1499 | } | |
1500 | ||
1501 | for (index = iwl_queue_inc_wrap(index, q->n_bd); q->read_ptr != index; | |
1502 | q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { | |
1503 | if (nfreed > 1) { | |
15b1687c | 1504 | IWL_ERR(priv, "HCMD skipped: index (%d) %d %d\n", index, |
91c066f2 TW |
1505 | q->write_ptr, q->read_ptr); |
1506 | queue_work(priv->workqueue, &priv->restart); | |
1507 | break; | |
1508 | } | |
1509 | nfreed++; | |
1510 | } | |
1511 | } | |
1512 | ||
1513 | ||
b481de9c | 1514 | /** |
bb8c093b | 1515 | * iwl3945_tx_cmd_complete - Pull unused buffers off the queue and reclaim them |
b481de9c ZY |
1516 | * @rxb: Rx buffer to reclaim |
1517 | * | |
1518 | * If an Rx buffer has an async callback associated with it the callback | |
1519 | * will be executed. The attached skb (if present) will only be freed | |
1520 | * if the callback returns 1 | |
1521 | */ | |
4a8a4322 | 1522 | static void iwl3945_tx_cmd_complete(struct iwl_priv *priv, |
6100b588 | 1523 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 1524 | { |
3d24a9f7 | 1525 | struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1526 | u16 sequence = le16_to_cpu(pkt->hdr.sequence); |
1527 | int txq_id = SEQ_TO_QUEUE(sequence); | |
1528 | int index = SEQ_TO_INDEX(sequence); | |
600c0e11 | 1529 | int huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME); |
b481de9c | 1530 | int cmd_index; |
c2d79b48 | 1531 | struct iwl_cmd *cmd; |
b481de9c | 1532 | |
638d0eb9 CR |
1533 | if (WARN(txq_id != IWL_CMD_QUEUE_NUM, |
1534 | "wrong command queue %d, sequence 0x%X readp=%d writep=%d\n", | |
1535 | txq_id, sequence, | |
1536 | priv->txq[IWL_CMD_QUEUE_NUM].q.read_ptr, | |
1537 | priv->txq[IWL_CMD_QUEUE_NUM].q.write_ptr)) { | |
1538 | iwl_print_hex_dump(priv, IWL_DL_INFO , rxb, 32); | |
1539 | return; | |
1540 | } | |
b481de9c | 1541 | |
188cf6c7 SO |
1542 | cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge); |
1543 | cmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index]; | |
b481de9c ZY |
1544 | |
1545 | /* Input error checking is done when commands are added to queue. */ | |
1546 | if (cmd->meta.flags & CMD_WANT_SKB) { | |
1547 | cmd->meta.source->u.skb = rxb->skb; | |
1548 | rxb->skb = NULL; | |
1549 | } else if (cmd->meta.u.callback && | |
1550 | !cmd->meta.u.callback(priv, cmd, rxb->skb)) | |
1551 | rxb->skb = NULL; | |
1552 | ||
91c066f2 | 1553 | iwl3945_cmd_queue_reclaim(priv, txq_id, index); |
b481de9c ZY |
1554 | |
1555 | if (!(cmd->meta.flags & CMD_ASYNC)) { | |
1556 | clear_bit(STATUS_HCMD_ACTIVE, &priv->status); | |
1557 | wake_up_interruptible(&priv->wait_command_queue); | |
1558 | } | |
1559 | } | |
1560 | ||
1561 | /************************** RX-FUNCTIONS ****************************/ | |
1562 | /* | |
1563 | * Rx theory of operation | |
1564 | * | |
1565 | * The host allocates 32 DMA target addresses and passes the host address | |
1566 | * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is | |
1567 | * 0 to 31 | |
1568 | * | |
1569 | * Rx Queue Indexes | |
1570 | * The host/firmware share two index registers for managing the Rx buffers. | |
1571 | * | |
1572 | * The READ index maps to the first position that the firmware may be writing | |
1573 | * to -- the driver can read up to (but not including) this position and get | |
1574 | * good data. | |
1575 | * The READ index is managed by the firmware once the card is enabled. | |
1576 | * | |
1577 | * The WRITE index maps to the last position the driver has read from -- the | |
1578 | * position preceding WRITE is the last slot the firmware can place a packet. | |
1579 | * | |
1580 | * The queue is empty (no good data) if WRITE = READ - 1, and is full if | |
1581 | * WRITE = READ. | |
1582 | * | |
9fbab516 | 1583 | * During initialization, the host sets up the READ queue position to the first |
b481de9c ZY |
1584 | * INDEX position, and WRITE to the last (READ - 1 wrapped) |
1585 | * | |
9fbab516 | 1586 | * When the firmware places a packet in a buffer, it will advance the READ index |
b481de9c ZY |
1587 | * and fire the RX interrupt. The driver can then query the READ index and |
1588 | * process as many packets as possible, moving the WRITE index forward as it | |
1589 | * resets the Rx queue buffers with new memory. | |
1590 | * | |
1591 | * The management in the driver is as follows: | |
1592 | * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When | |
1593 | * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled | |
01ebd063 | 1594 | * to replenish the iwl->rxq->rx_free. |
bb8c093b | 1595 | * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the |
b481de9c ZY |
1596 | * iwl->rxq is replenished and the READ INDEX is updated (updating the |
1597 | * 'processed' and 'read' driver indexes as well) | |
1598 | * + A received packet is processed and handed to the kernel network stack, | |
1599 | * detached from the iwl->rxq. The driver 'processed' index is updated. | |
1600 | * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free | |
1601 | * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ | |
1602 | * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there | |
1603 | * were enough free buffers and RX_STALLED is set it is cleared. | |
1604 | * | |
1605 | * | |
1606 | * Driver sequence: | |
1607 | * | |
9fbab516 | 1608 | * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls |
bb8c093b | 1609 | * iwl3945_rx_queue_restock |
9fbab516 | 1610 | * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx |
b481de9c ZY |
1611 | * queue, updates firmware pointers, and updates |
1612 | * the WRITE index. If insufficient rx_free buffers | |
bb8c093b | 1613 | * are available, schedules iwl3945_rx_replenish |
b481de9c ZY |
1614 | * |
1615 | * -- enable interrupts -- | |
6100b588 | 1616 | * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the |
b481de9c ZY |
1617 | * READ INDEX, detaching the SKB from the pool. |
1618 | * Moves the packet buffer from queue to rx_used. | |
bb8c093b | 1619 | * Calls iwl3945_rx_queue_restock to refill any empty |
b481de9c ZY |
1620 | * slots. |
1621 | * ... | |
1622 | * | |
1623 | */ | |
1624 | ||
b481de9c | 1625 | /** |
9fbab516 | 1626 | * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr |
b481de9c | 1627 | */ |
4a8a4322 | 1628 | static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl_priv *priv, |
b481de9c ZY |
1629 | dma_addr_t dma_addr) |
1630 | { | |
1631 | return cpu_to_le32((u32)dma_addr); | |
1632 | } | |
1633 | ||
1634 | /** | |
bb8c093b | 1635 | * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool |
b481de9c | 1636 | * |
9fbab516 | 1637 | * If there are slots in the RX queue that need to be restocked, |
b481de9c | 1638 | * and we have free pre-allocated buffers, fill the ranks as much |
9fbab516 | 1639 | * as we can, pulling from rx_free. |
b481de9c ZY |
1640 | * |
1641 | * This moves the 'write' index forward to catch up with 'processed', and | |
1642 | * also updates the memory address in the firmware to reference the new | |
1643 | * target buffer. | |
1644 | */ | |
4a8a4322 | 1645 | static int iwl3945_rx_queue_restock(struct iwl_priv *priv) |
b481de9c | 1646 | { |
cc2f362c | 1647 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c | 1648 | struct list_head *element; |
6100b588 | 1649 | struct iwl_rx_mem_buffer *rxb; |
b481de9c ZY |
1650 | unsigned long flags; |
1651 | int write, rc; | |
1652 | ||
1653 | spin_lock_irqsave(&rxq->lock, flags); | |
1654 | write = rxq->write & ~0x7; | |
37d68317 | 1655 | while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) { |
6440adb5 | 1656 | /* Get next free Rx buffer, remove from free list */ |
b481de9c | 1657 | element = rxq->rx_free.next; |
6100b588 | 1658 | rxb = list_entry(element, struct iwl_rx_mem_buffer, list); |
b481de9c | 1659 | list_del(element); |
6440adb5 BC |
1660 | |
1661 | /* Point to Rx buffer via next RBD in circular buffer */ | |
6100b588 | 1662 | rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->real_dma_addr); |
b481de9c ZY |
1663 | rxq->queue[rxq->write] = rxb; |
1664 | rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; | |
1665 | rxq->free_count--; | |
1666 | } | |
1667 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1668 | /* If the pre-allocated buffer pool is dropping low, schedule to | |
1669 | * refill it */ | |
1670 | if (rxq->free_count <= RX_LOW_WATERMARK) | |
1671 | queue_work(priv->workqueue, &priv->rx_replenish); | |
1672 | ||
1673 | ||
6440adb5 BC |
1674 | /* If we've added more space for the firmware to place data, tell it. |
1675 | * Increment device's write pointer in multiples of 8. */ | |
b481de9c ZY |
1676 | if ((write != (rxq->write & ~0x7)) |
1677 | || (abs(rxq->write - rxq->read) > 7)) { | |
1678 | spin_lock_irqsave(&rxq->lock, flags); | |
1679 | rxq->need_update = 1; | |
1680 | spin_unlock_irqrestore(&rxq->lock, flags); | |
141c43a3 | 1681 | rc = iwl_rx_queue_update_write_ptr(priv, rxq); |
b481de9c ZY |
1682 | if (rc) |
1683 | return rc; | |
1684 | } | |
1685 | ||
1686 | return 0; | |
1687 | } | |
1688 | ||
1689 | /** | |
bb8c093b | 1690 | * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free |
b481de9c ZY |
1691 | * |
1692 | * When moving to rx_free an SKB is allocated for the slot. | |
1693 | * | |
bb8c093b | 1694 | * Also restock the Rx queue via iwl3945_rx_queue_restock. |
01ebd063 | 1695 | * This is called as a scheduled work item (except for during initialization) |
b481de9c | 1696 | */ |
4a8a4322 | 1697 | static void iwl3945_rx_allocate(struct iwl_priv *priv) |
b481de9c | 1698 | { |
cc2f362c | 1699 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c | 1700 | struct list_head *element; |
6100b588 | 1701 | struct iwl_rx_mem_buffer *rxb; |
b481de9c ZY |
1702 | unsigned long flags; |
1703 | spin_lock_irqsave(&rxq->lock, flags); | |
1704 | while (!list_empty(&rxq->rx_used)) { | |
1705 | element = rxq->rx_used.next; | |
6100b588 | 1706 | rxb = list_entry(element, struct iwl_rx_mem_buffer, list); |
6440adb5 BC |
1707 | |
1708 | /* Alloc a new receive buffer */ | |
b481de9c | 1709 | rxb->skb = |
1e33dc64 WT |
1710 | alloc_skb(priv->hw_params.rx_buf_size, |
1711 | __GFP_NOWARN | GFP_ATOMIC); | |
b481de9c ZY |
1712 | if (!rxb->skb) { |
1713 | if (net_ratelimit()) | |
978785a3 | 1714 | IWL_CRIT(priv, ": Can not allocate SKB buffers\n"); |
b481de9c ZY |
1715 | /* We don't reschedule replenish work here -- we will |
1716 | * call the restock method and if it still needs | |
1717 | * more buffers it will schedule replenish */ | |
1718 | break; | |
1719 | } | |
12342c47 ZY |
1720 | |
1721 | /* If radiotap head is required, reserve some headroom here. | |
1722 | * The physical head count is a variable rx_stats->phy_count. | |
1723 | * We reserve 4 bytes here. Plus these extra bytes, the | |
1724 | * headroom of the physical head should be enough for the | |
1725 | * radiotap head that iwl3945 supported. See iwl3945_rt. | |
1726 | */ | |
1727 | skb_reserve(rxb->skb, 4); | |
1728 | ||
b481de9c ZY |
1729 | priv->alloc_rxb_skb++; |
1730 | list_del(element); | |
6440adb5 BC |
1731 | |
1732 | /* Get physical address of RB/SKB */ | |
1e33dc64 WT |
1733 | rxb->real_dma_addr = pci_map_single(priv->pci_dev, |
1734 | rxb->skb->data, | |
1735 | priv->hw_params.rx_buf_size, | |
1736 | PCI_DMA_FROMDEVICE); | |
b481de9c ZY |
1737 | list_add_tail(&rxb->list, &rxq->rx_free); |
1738 | rxq->free_count++; | |
1739 | } | |
1740 | spin_unlock_irqrestore(&rxq->lock, flags); | |
5c0eef96 MA |
1741 | } |
1742 | ||
1743 | /* | |
1744 | * this should be called while priv->lock is locked | |
1745 | */ | |
4fd1f841 | 1746 | static void __iwl3945_rx_replenish(void *data) |
5c0eef96 | 1747 | { |
4a8a4322 | 1748 | struct iwl_priv *priv = data; |
5c0eef96 MA |
1749 | |
1750 | iwl3945_rx_allocate(priv); | |
1751 | iwl3945_rx_queue_restock(priv); | |
1752 | } | |
1753 | ||
1754 | ||
1755 | void iwl3945_rx_replenish(void *data) | |
1756 | { | |
4a8a4322 | 1757 | struct iwl_priv *priv = data; |
5c0eef96 MA |
1758 | unsigned long flags; |
1759 | ||
1760 | iwl3945_rx_allocate(priv); | |
b481de9c ZY |
1761 | |
1762 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 1763 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
1764 | spin_unlock_irqrestore(&priv->lock, flags); |
1765 | } | |
1766 | ||
b481de9c ZY |
1767 | /* Convert linear signal-to-noise ratio into dB */ |
1768 | static u8 ratio2dB[100] = { | |
1769 | /* 0 1 2 3 4 5 6 7 8 9 */ | |
1770 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ | |
1771 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ | |
1772 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ | |
1773 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ | |
1774 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ | |
1775 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ | |
1776 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ | |
1777 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ | |
1778 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ | |
1779 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ | |
1780 | }; | |
1781 | ||
1782 | /* Calculates a relative dB value from a ratio of linear | |
1783 | * (i.e. not dB) signal levels. | |
1784 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ | |
bb8c093b | 1785 | int iwl3945_calc_db_from_ratio(int sig_ratio) |
b481de9c | 1786 | { |
221c80cf AB |
1787 | /* 1000:1 or higher just report as 60 dB */ |
1788 | if (sig_ratio >= 1000) | |
b481de9c ZY |
1789 | return 60; |
1790 | ||
221c80cf | 1791 | /* 100:1 or higher, divide by 10 and use table, |
b481de9c | 1792 | * add 20 dB to make up for divide by 10 */ |
221c80cf | 1793 | if (sig_ratio >= 100) |
3ac7f146 | 1794 | return 20 + (int)ratio2dB[sig_ratio/10]; |
b481de9c ZY |
1795 | |
1796 | /* We shouldn't see this */ | |
1797 | if (sig_ratio < 1) | |
1798 | return 0; | |
1799 | ||
1800 | /* Use table for ratios 1:1 - 99:1 */ | |
1801 | return (int)ratio2dB[sig_ratio]; | |
1802 | } | |
1803 | ||
1804 | #define PERFECT_RSSI (-20) /* dBm */ | |
1805 | #define WORST_RSSI (-95) /* dBm */ | |
1806 | #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI) | |
1807 | ||
1808 | /* Calculate an indication of rx signal quality (a percentage, not dBm!). | |
1809 | * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info | |
1810 | * about formulas used below. */ | |
bb8c093b | 1811 | int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm) |
b481de9c ZY |
1812 | { |
1813 | int sig_qual; | |
1814 | int degradation = PERFECT_RSSI - rssi_dbm; | |
1815 | ||
1816 | /* If we get a noise measurement, use signal-to-noise ratio (SNR) | |
1817 | * as indicator; formula is (signal dbm - noise dbm). | |
1818 | * SNR at or above 40 is a great signal (100%). | |
1819 | * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator. | |
1820 | * Weakest usable signal is usually 10 - 15 dB SNR. */ | |
1821 | if (noise_dbm) { | |
1822 | if (rssi_dbm - noise_dbm >= 40) | |
1823 | return 100; | |
1824 | else if (rssi_dbm < noise_dbm) | |
1825 | return 0; | |
1826 | sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2; | |
1827 | ||
1828 | /* Else use just the signal level. | |
1829 | * This formula is a least squares fit of data points collected and | |
1830 | * compared with a reference system that had a percentage (%) display | |
1831 | * for signal quality. */ | |
1832 | } else | |
1833 | sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation * | |
1834 | (15 * RSSI_RANGE + 62 * degradation)) / | |
1835 | (RSSI_RANGE * RSSI_RANGE); | |
1836 | ||
1837 | if (sig_qual > 100) | |
1838 | sig_qual = 100; | |
1839 | else if (sig_qual < 1) | |
1840 | sig_qual = 0; | |
1841 | ||
1842 | return sig_qual; | |
1843 | } | |
1844 | ||
1845 | /** | |
9fbab516 | 1846 | * iwl3945_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
1847 | * |
1848 | * Uses the priv->rx_handlers callback function array to invoke | |
1849 | * the appropriate handlers, including command responses, | |
1850 | * frame-received notifications, and other notifications. | |
1851 | */ | |
4a8a4322 | 1852 | static void iwl3945_rx_handle(struct iwl_priv *priv) |
b481de9c | 1853 | { |
6100b588 | 1854 | struct iwl_rx_mem_buffer *rxb; |
3d24a9f7 | 1855 | struct iwl_rx_packet *pkt; |
cc2f362c | 1856 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
1857 | u32 r, i; |
1858 | int reclaim; | |
1859 | unsigned long flags; | |
5c0eef96 | 1860 | u8 fill_rx = 0; |
d68ab680 | 1861 | u32 count = 8; |
b481de9c | 1862 | |
6440adb5 BC |
1863 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
1864 | * buffer that the driver may process (last buffer filled by ucode). */ | |
8cd812bc | 1865 | r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; |
b481de9c ZY |
1866 | i = rxq->read; |
1867 | ||
37d68317 | 1868 | if (iwl_rx_queue_space(rxq) > (RX_QUEUE_SIZE / 2)) |
5c0eef96 | 1869 | fill_rx = 1; |
b481de9c ZY |
1870 | /* Rx interrupt, but nothing sent from uCode */ |
1871 | if (i == r) | |
e1623446 | 1872 | IWL_DEBUG(priv, IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i); |
b481de9c ZY |
1873 | |
1874 | while (i != r) { | |
1875 | rxb = rxq->queue[i]; | |
1876 | ||
9fbab516 | 1877 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
1878 | * then a bug has been introduced in the queue refilling |
1879 | * routines -- catch it here */ | |
1880 | BUG_ON(rxb == NULL); | |
1881 | ||
1882 | rxq->queue[i] = NULL; | |
1883 | ||
6100b588 | 1884 | pci_dma_sync_single_for_cpu(priv->pci_dev, rxb->real_dma_addr, |
1e33dc64 | 1885 | priv->hw_params.rx_buf_size, |
b481de9c | 1886 | PCI_DMA_FROMDEVICE); |
3d24a9f7 | 1887 | pkt = (struct iwl_rx_packet *)rxb->skb->data; |
b481de9c ZY |
1888 | |
1889 | /* Reclaim a command buffer only if this packet is a response | |
1890 | * to a (driver-originated) command. | |
1891 | * If the packet (e.g. Rx frame) originated from uCode, | |
1892 | * there is no command buffer to reclaim. | |
1893 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
1894 | * but apparently a few don't get set; catch them here. */ | |
1895 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
1896 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && | |
1897 | (pkt->hdr.cmd != REPLY_TX); | |
1898 | ||
1899 | /* Based on type of command response or notification, | |
1900 | * handle those that need handling via function in | |
bb8c093b | 1901 | * rx_handlers table. See iwl3945_setup_rx_handlers() */ |
b481de9c | 1902 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
e1623446 | 1903 | IWL_DEBUG(priv, IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR, |
b481de9c ZY |
1904 | "r = %d, i = %d, %s, 0x%02x\n", r, i, |
1905 | get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); | |
1906 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); | |
1907 | } else { | |
1908 | /* No handling needed */ | |
e1623446 | 1909 | IWL_DEBUG(priv, IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR, |
b481de9c ZY |
1910 | "r %d i %d No handler needed for %s, 0x%02x\n", |
1911 | r, i, get_cmd_string(pkt->hdr.cmd), | |
1912 | pkt->hdr.cmd); | |
1913 | } | |
1914 | ||
1915 | if (reclaim) { | |
9fbab516 | 1916 | /* Invoke any callbacks, transfer the skb to caller, and |
518099a8 | 1917 | * fire off the (possibly) blocking iwl_send_cmd() |
b481de9c ZY |
1918 | * as we reclaim the driver command queue */ |
1919 | if (rxb && rxb->skb) | |
bb8c093b | 1920 | iwl3945_tx_cmd_complete(priv, rxb); |
b481de9c | 1921 | else |
39aadf8c | 1922 | IWL_WARN(priv, "Claim null rxb?\n"); |
b481de9c ZY |
1923 | } |
1924 | ||
1925 | /* For now we just don't re-use anything. We can tweak this | |
1926 | * later to try and re-use notification packets and SKBs that | |
1927 | * fail to Rx correctly */ | |
1928 | if (rxb->skb != NULL) { | |
1929 | priv->alloc_rxb_skb--; | |
1930 | dev_kfree_skb_any(rxb->skb); | |
1931 | rxb->skb = NULL; | |
1932 | } | |
1933 | ||
6100b588 | 1934 | pci_unmap_single(priv->pci_dev, rxb->real_dma_addr, |
1e33dc64 WT |
1935 | priv->hw_params.rx_buf_size, |
1936 | PCI_DMA_FROMDEVICE); | |
b481de9c ZY |
1937 | spin_lock_irqsave(&rxq->lock, flags); |
1938 | list_add_tail(&rxb->list, &priv->rxq.rx_used); | |
1939 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1940 | i = (i + 1) & RX_QUEUE_MASK; | |
5c0eef96 MA |
1941 | /* If there are a lot of unused frames, |
1942 | * restock the Rx queue so ucode won't assert. */ | |
1943 | if (fill_rx) { | |
1944 | count++; | |
1945 | if (count >= 8) { | |
1946 | priv->rxq.read = i; | |
1947 | __iwl3945_rx_replenish(priv); | |
1948 | count = 0; | |
1949 | } | |
1950 | } | |
b481de9c ZY |
1951 | } |
1952 | ||
1953 | /* Backtrack one entry */ | |
1954 | priv->rxq.read = i; | |
bb8c093b | 1955 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
1956 | } |
1957 | ||
0359facc | 1958 | /* call this function to flush any scheduled tasklet */ |
4a8a4322 | 1959 | static inline void iwl_synchronize_irq(struct iwl_priv *priv) |
0359facc | 1960 | { |
a96a27f9 | 1961 | /* wait to make sure we flush pending tasklet*/ |
0359facc MA |
1962 | synchronize_irq(priv->pci_dev->irq); |
1963 | tasklet_kill(&priv->irq_tasklet); | |
1964 | } | |
1965 | ||
b481de9c ZY |
1966 | static const char *desc_lookup(int i) |
1967 | { | |
1968 | switch (i) { | |
1969 | case 1: | |
1970 | return "FAIL"; | |
1971 | case 2: | |
1972 | return "BAD_PARAM"; | |
1973 | case 3: | |
1974 | return "BAD_CHECKSUM"; | |
1975 | case 4: | |
1976 | return "NMI_INTERRUPT"; | |
1977 | case 5: | |
1978 | return "SYSASSERT"; | |
1979 | case 6: | |
1980 | return "FATAL_ERROR"; | |
1981 | } | |
1982 | ||
1983 | return "UNKNOWN"; | |
1984 | } | |
1985 | ||
1986 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
1987 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
1988 | ||
4a8a4322 | 1989 | static void iwl3945_dump_nic_error_log(struct iwl_priv *priv) |
b481de9c ZY |
1990 | { |
1991 | u32 i; | |
1992 | u32 desc, time, count, base, data1; | |
1993 | u32 blink1, blink2, ilink1, ilink2; | |
1994 | int rc; | |
1995 | ||
1996 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); | |
1997 | ||
bb8c093b | 1998 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
15b1687c | 1999 | IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base); |
b481de9c ZY |
2000 | return; |
2001 | } | |
2002 | ||
5d49f498 | 2003 | rc = iwl_grab_nic_access(priv); |
b481de9c | 2004 | if (rc) { |
39aadf8c | 2005 | IWL_WARN(priv, "Can not read from adapter at this time.\n"); |
b481de9c ZY |
2006 | return; |
2007 | } | |
2008 | ||
5d49f498 | 2009 | count = iwl_read_targ_mem(priv, base); |
b481de9c ZY |
2010 | |
2011 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
15b1687c WT |
2012 | IWL_ERR(priv, "Start IWL Error Log Dump:\n"); |
2013 | IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", | |
2014 | priv->status, count); | |
b481de9c ZY |
2015 | } |
2016 | ||
15b1687c | 2017 | IWL_ERR(priv, "Desc Time asrtPC blink2 " |
b481de9c ZY |
2018 | "ilink1 nmiPC Line\n"); |
2019 | for (i = ERROR_START_OFFSET; | |
2020 | i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; | |
2021 | i += ERROR_ELEM_SIZE) { | |
5d49f498 | 2022 | desc = iwl_read_targ_mem(priv, base + i); |
b481de9c | 2023 | time = |
5d49f498 | 2024 | iwl_read_targ_mem(priv, base + i + 1 * sizeof(u32)); |
b481de9c | 2025 | blink1 = |
5d49f498 | 2026 | iwl_read_targ_mem(priv, base + i + 2 * sizeof(u32)); |
b481de9c | 2027 | blink2 = |
5d49f498 | 2028 | iwl_read_targ_mem(priv, base + i + 3 * sizeof(u32)); |
b481de9c | 2029 | ilink1 = |
5d49f498 | 2030 | iwl_read_targ_mem(priv, base + i + 4 * sizeof(u32)); |
b481de9c | 2031 | ilink2 = |
5d49f498 | 2032 | iwl_read_targ_mem(priv, base + i + 5 * sizeof(u32)); |
b481de9c | 2033 | data1 = |
5d49f498 | 2034 | iwl_read_targ_mem(priv, base + i + 6 * sizeof(u32)); |
b481de9c | 2035 | |
15b1687c WT |
2036 | IWL_ERR(priv, |
2037 | "%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", | |
2038 | desc_lookup(desc), desc, time, blink1, blink2, | |
2039 | ilink1, ilink2, data1); | |
b481de9c ZY |
2040 | } |
2041 | ||
5d49f498 | 2042 | iwl_release_nic_access(priv); |
b481de9c ZY |
2043 | |
2044 | } | |
2045 | ||
f58177b9 | 2046 | #define EVENT_START_OFFSET (6 * sizeof(u32)) |
b481de9c ZY |
2047 | |
2048 | /** | |
bb8c093b | 2049 | * iwl3945_print_event_log - Dump error event log to syslog |
b481de9c | 2050 | * |
5d49f498 | 2051 | * NOTE: Must be called with iwl_grab_nic_access() already obtained! |
b481de9c | 2052 | */ |
4a8a4322 | 2053 | static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx, |
b481de9c ZY |
2054 | u32 num_events, u32 mode) |
2055 | { | |
2056 | u32 i; | |
2057 | u32 base; /* SRAM byte address of event log header */ | |
2058 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
2059 | u32 ptr; /* SRAM byte address of log data */ | |
2060 | u32 ev, time, data; /* event log data */ | |
2061 | ||
2062 | if (num_events == 0) | |
2063 | return; | |
2064 | ||
2065 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
2066 | ||
2067 | if (mode == 0) | |
2068 | event_size = 2 * sizeof(u32); | |
2069 | else | |
2070 | event_size = 3 * sizeof(u32); | |
2071 | ||
2072 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
2073 | ||
2074 | /* "time" is actually "data" for mode 0 (no timestamp). | |
2075 | * place event id # at far right for easier visual parsing. */ | |
2076 | for (i = 0; i < num_events; i++) { | |
5d49f498 | 2077 | ev = iwl_read_targ_mem(priv, ptr); |
b481de9c | 2078 | ptr += sizeof(u32); |
5d49f498 | 2079 | time = iwl_read_targ_mem(priv, ptr); |
b481de9c | 2080 | ptr += sizeof(u32); |
15b1687c WT |
2081 | if (mode == 0) { |
2082 | /* data, ev */ | |
2083 | IWL_ERR(priv, "0x%08x\t%04u\n", time, ev); | |
2084 | } else { | |
5d49f498 | 2085 | data = iwl_read_targ_mem(priv, ptr); |
b481de9c | 2086 | ptr += sizeof(u32); |
15b1687c | 2087 | IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", time, data, ev); |
b481de9c ZY |
2088 | } |
2089 | } | |
2090 | } | |
2091 | ||
4a8a4322 | 2092 | static void iwl3945_dump_nic_event_log(struct iwl_priv *priv) |
b481de9c ZY |
2093 | { |
2094 | int rc; | |
2095 | u32 base; /* SRAM byte address of event log header */ | |
2096 | u32 capacity; /* event log capacity in # entries */ | |
2097 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
2098 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
2099 | u32 next_entry; /* index of next entry to be written by uCode */ | |
2100 | u32 size; /* # entries that we'll print */ | |
2101 | ||
2102 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
bb8c093b | 2103 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
15b1687c | 2104 | IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base); |
b481de9c ZY |
2105 | return; |
2106 | } | |
2107 | ||
5d49f498 | 2108 | rc = iwl_grab_nic_access(priv); |
b481de9c | 2109 | if (rc) { |
39aadf8c | 2110 | IWL_WARN(priv, "Can not read from adapter at this time.\n"); |
b481de9c ZY |
2111 | return; |
2112 | } | |
2113 | ||
2114 | /* event log header */ | |
5d49f498 AK |
2115 | capacity = iwl_read_targ_mem(priv, base); |
2116 | mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
2117 | num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
2118 | next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
b481de9c ZY |
2119 | |
2120 | size = num_wraps ? capacity : next_entry; | |
2121 | ||
2122 | /* bail out if nothing in log */ | |
2123 | if (size == 0) { | |
15b1687c | 2124 | IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); |
5d49f498 | 2125 | iwl_release_nic_access(priv); |
b481de9c ZY |
2126 | return; |
2127 | } | |
2128 | ||
15b1687c | 2129 | IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n", |
b481de9c ZY |
2130 | size, num_wraps); |
2131 | ||
2132 | /* if uCode has wrapped back to top of log, start at the oldest entry, | |
2133 | * i.e the next one that uCode would fill. */ | |
2134 | if (num_wraps) | |
bb8c093b | 2135 | iwl3945_print_event_log(priv, next_entry, |
b481de9c ZY |
2136 | capacity - next_entry, mode); |
2137 | ||
2138 | /* (then/else) start at top of log */ | |
bb8c093b | 2139 | iwl3945_print_event_log(priv, 0, next_entry, mode); |
b481de9c | 2140 | |
5d49f498 | 2141 | iwl_release_nic_access(priv); |
b481de9c ZY |
2142 | } |
2143 | ||
4a8a4322 | 2144 | static void iwl3945_error_recovery(struct iwl_priv *priv) |
b481de9c ZY |
2145 | { |
2146 | unsigned long flags; | |
2147 | ||
8ccde88a SO |
2148 | memcpy(&priv->staging_rxon, &priv->recovery_rxon, |
2149 | sizeof(priv->staging_rxon)); | |
2150 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; | |
bb8c093b | 2151 | iwl3945_commit_rxon(priv); |
b481de9c | 2152 | |
bb8c093b | 2153 | iwl3945_add_station(priv, priv->bssid, 1, 0); |
b481de9c ZY |
2154 | |
2155 | spin_lock_irqsave(&priv->lock, flags); | |
8ccde88a | 2156 | priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id); |
b481de9c ZY |
2157 | priv->error_recovering = 0; |
2158 | spin_unlock_irqrestore(&priv->lock, flags); | |
2159 | } | |
2160 | ||
4a8a4322 | 2161 | static void iwl3945_irq_tasklet(struct iwl_priv *priv) |
b481de9c ZY |
2162 | { |
2163 | u32 inta, handled = 0; | |
2164 | u32 inta_fh; | |
2165 | unsigned long flags; | |
d08853a3 | 2166 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
2167 | u32 inta_mask; |
2168 | #endif | |
2169 | ||
2170 | spin_lock_irqsave(&priv->lock, flags); | |
2171 | ||
2172 | /* Ack/clear/reset pending uCode interrupts. | |
2173 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
2174 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
5d49f498 AK |
2175 | inta = iwl_read32(priv, CSR_INT); |
2176 | iwl_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
2177 | |
2178 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
2179 | * Any new interrupts that happen after this, either while we're | |
2180 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
5d49f498 AK |
2181 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
2182 | iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 2183 | |
d08853a3 | 2184 | #ifdef CONFIG_IWLWIFI_DEBUG |
40b8ec0b | 2185 | if (priv->debug_level & IWL_DL_ISR) { |
9fbab516 | 2186 | /* just for debug */ |
5d49f498 | 2187 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
e1623446 | 2188 | IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
b481de9c ZY |
2189 | inta, inta_mask, inta_fh); |
2190 | } | |
2191 | #endif | |
2192 | ||
2193 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not | |
2194 | * atomic, make sure that inta covers all the interrupts that | |
2195 | * we've discovered, even if FH interrupt came in just after | |
2196 | * reading CSR_INT. */ | |
6f83eaa1 | 2197 | if (inta_fh & CSR39_FH_INT_RX_MASK) |
b481de9c | 2198 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 2199 | if (inta_fh & CSR39_FH_INT_TX_MASK) |
b481de9c ZY |
2200 | inta |= CSR_INT_BIT_FH_TX; |
2201 | ||
2202 | /* Now service all interrupt bits discovered above. */ | |
2203 | if (inta & CSR_INT_BIT_HW_ERR) { | |
15b1687c | 2204 | IWL_ERR(priv, "Microcode HW error detected. Restarting.\n"); |
b481de9c ZY |
2205 | |
2206 | /* Tell the device to stop sending interrupts */ | |
ed3b932e | 2207 | iwl_disable_interrupts(priv); |
b481de9c | 2208 | |
8ccde88a | 2209 | iwl_irq_handle_error(priv); |
b481de9c ZY |
2210 | |
2211 | handled |= CSR_INT_BIT_HW_ERR; | |
2212 | ||
2213 | spin_unlock_irqrestore(&priv->lock, flags); | |
2214 | ||
2215 | return; | |
2216 | } | |
2217 | ||
d08853a3 | 2218 | #ifdef CONFIG_IWLWIFI_DEBUG |
40b8ec0b | 2219 | if (priv->debug_level & (IWL_DL_ISR)) { |
b481de9c | 2220 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
25c03d8e | 2221 | if (inta & CSR_INT_BIT_SCD) |
e1623446 | 2222 | IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " |
25c03d8e | 2223 | "the frame/frames.\n"); |
b481de9c ZY |
2224 | |
2225 | /* Alive notification via Rx interrupt will do the real work */ | |
2226 | if (inta & CSR_INT_BIT_ALIVE) | |
e1623446 | 2227 | IWL_DEBUG_ISR(priv, "Alive interrupt\n"); |
b481de9c ZY |
2228 | } |
2229 | #endif | |
2230 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 2231 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c | 2232 | |
b481de9c ZY |
2233 | /* Error detected by uCode */ |
2234 | if (inta & CSR_INT_BIT_SW_ERR) { | |
15b1687c WT |
2235 | IWL_ERR(priv, "Microcode SW error detected. " |
2236 | "Restarting 0x%X.\n", inta); | |
8ccde88a | 2237 | iwl_irq_handle_error(priv); |
b481de9c ZY |
2238 | handled |= CSR_INT_BIT_SW_ERR; |
2239 | } | |
2240 | ||
2241 | /* uCode wakes up after power-down sleep */ | |
2242 | if (inta & CSR_INT_BIT_WAKEUP) { | |
e1623446 | 2243 | IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); |
141c43a3 | 2244 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); |
4f3602c8 SO |
2245 | iwl_txq_update_write_ptr(priv, &priv->txq[0]); |
2246 | iwl_txq_update_write_ptr(priv, &priv->txq[1]); | |
2247 | iwl_txq_update_write_ptr(priv, &priv->txq[2]); | |
2248 | iwl_txq_update_write_ptr(priv, &priv->txq[3]); | |
2249 | iwl_txq_update_write_ptr(priv, &priv->txq[4]); | |
2250 | iwl_txq_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c ZY |
2251 | |
2252 | handled |= CSR_INT_BIT_WAKEUP; | |
2253 | } | |
2254 | ||
2255 | /* All uCode command responses, including Tx command responses, | |
2256 | * Rx "responses" (frame-received notification), and other | |
2257 | * notifications from uCode come through here*/ | |
2258 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
bb8c093b | 2259 | iwl3945_rx_handle(priv); |
b481de9c ZY |
2260 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
2261 | } | |
2262 | ||
2263 | if (inta & CSR_INT_BIT_FH_TX) { | |
e1623446 | 2264 | IWL_DEBUG_ISR(priv, "Tx interrupt\n"); |
b481de9c | 2265 | |
5d49f498 AK |
2266 | iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6)); |
2267 | if (!iwl_grab_nic_access(priv)) { | |
2268 | iwl_write_direct32(priv, FH39_TCSR_CREDIT | |
bddadf86 | 2269 | (FH39_SRVC_CHNL), 0x0); |
5d49f498 | 2270 | iwl_release_nic_access(priv); |
b481de9c ZY |
2271 | } |
2272 | handled |= CSR_INT_BIT_FH_TX; | |
2273 | } | |
2274 | ||
2275 | if (inta & ~handled) | |
15b1687c | 2276 | IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); |
b481de9c ZY |
2277 | |
2278 | if (inta & ~CSR_INI_SET_MASK) { | |
39aadf8c | 2279 | IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", |
b481de9c | 2280 | inta & ~CSR_INI_SET_MASK); |
39aadf8c | 2281 | IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh); |
b481de9c ZY |
2282 | } |
2283 | ||
2284 | /* Re-enable all interrupts */ | |
0359facc MA |
2285 | /* only Re-enable if disabled by irq */ |
2286 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
ed3b932e | 2287 | iwl_enable_interrupts(priv); |
b481de9c | 2288 | |
d08853a3 | 2289 | #ifdef CONFIG_IWLWIFI_DEBUG |
40b8ec0b | 2290 | if (priv->debug_level & (IWL_DL_ISR)) { |
5d49f498 AK |
2291 | inta = iwl_read32(priv, CSR_INT); |
2292 | inta_mask = iwl_read32(priv, CSR_INT_MASK); | |
2293 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
e1623446 | 2294 | IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
b481de9c ZY |
2295 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); |
2296 | } | |
2297 | #endif | |
2298 | spin_unlock_irqrestore(&priv->lock, flags); | |
2299 | } | |
2300 | ||
4a8a4322 | 2301 | static int iwl3945_get_channels_for_scan(struct iwl_priv *priv, |
8318d78a | 2302 | enum ieee80211_band band, |
f9340520 | 2303 | u8 is_active, u8 n_probes, |
bb8c093b | 2304 | struct iwl3945_scan_channel *scan_ch) |
b481de9c ZY |
2305 | { |
2306 | const struct ieee80211_channel *channels = NULL; | |
8318d78a | 2307 | const struct ieee80211_supported_band *sband; |
d20b3c65 | 2308 | const struct iwl_channel_info *ch_info; |
b481de9c ZY |
2309 | u16 passive_dwell = 0; |
2310 | u16 active_dwell = 0; | |
2311 | int added, i; | |
2312 | ||
cbba18c6 | 2313 | sband = iwl_get_hw_mode(priv, band); |
8318d78a | 2314 | if (!sband) |
b481de9c ZY |
2315 | return 0; |
2316 | ||
8318d78a | 2317 | channels = sband->channels; |
b481de9c | 2318 | |
77fecfb8 SO |
2319 | active_dwell = iwl_get_active_dwell_time(priv, band, n_probes); |
2320 | passive_dwell = iwl_get_passive_dwell_time(priv, band); | |
b481de9c | 2321 | |
8f4807a1 AK |
2322 | if (passive_dwell <= active_dwell) |
2323 | passive_dwell = active_dwell + 1; | |
2324 | ||
8318d78a | 2325 | for (i = 0, added = 0; i < sband->n_channels; i++) { |
182e2e66 JB |
2326 | if (channels[i].flags & IEEE80211_CHAN_DISABLED) |
2327 | continue; | |
2328 | ||
8318d78a | 2329 | scan_ch->channel = channels[i].hw_value; |
b481de9c | 2330 | |
e6148917 | 2331 | ch_info = iwl_get_channel_info(priv, band, scan_ch->channel); |
b481de9c | 2332 | if (!is_channel_valid(ch_info)) { |
e1623446 | 2333 | IWL_DEBUG_SCAN(priv, "Channel %d is INVALID for this band.\n", |
b481de9c ZY |
2334 | scan_ch->channel); |
2335 | continue; | |
2336 | } | |
2337 | ||
011a0330 AK |
2338 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
2339 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); | |
2340 | /* If passive , set up for auto-switch | |
2341 | * and use long active_dwell time. | |
2342 | */ | |
b481de9c | 2343 | if (!is_active || is_channel_passive(ch_info) || |
011a0330 | 2344 | (channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN)) { |
b481de9c | 2345 | scan_ch->type = 0; /* passive */ |
011a0330 AK |
2346 | if (IWL_UCODE_API(priv->ucode_ver) == 1) |
2347 | scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1); | |
2348 | } else { | |
b481de9c | 2349 | scan_ch->type = 1; /* active */ |
011a0330 | 2350 | } |
b481de9c | 2351 | |
011a0330 AK |
2352 | /* Set direct probe bits. These may be used both for active |
2353 | * scan channels (probes gets sent right away), | |
2354 | * or for passive channels (probes get se sent only after | |
2355 | * hearing clear Rx packet).*/ | |
2356 | if (IWL_UCODE_API(priv->ucode_ver) >= 2) { | |
2357 | if (n_probes) | |
0d21044e | 2358 | scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes); |
011a0330 AK |
2359 | } else { |
2360 | /* uCode v1 does not allow setting direct probe bits on | |
2361 | * passive channel. */ | |
2362 | if ((scan_ch->type & 1) && n_probes) | |
0d21044e | 2363 | scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes); |
011a0330 | 2364 | } |
b481de9c | 2365 | |
9fbab516 | 2366 | /* Set txpower levels to defaults */ |
b481de9c ZY |
2367 | scan_ch->tpc.dsp_atten = 110; |
2368 | /* scan_pwr_info->tpc.dsp_atten; */ | |
2369 | ||
2370 | /*scan_pwr_info->tpc.tx_gain; */ | |
8318d78a | 2371 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
2372 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
2373 | else { | |
2374 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); | |
2375 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use | |
9fbab516 | 2376 | * power level: |
8a1b0245 | 2377 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
b481de9c ZY |
2378 | */ |
2379 | } | |
2380 | ||
e1623446 | 2381 | IWL_DEBUG_SCAN(priv, "Scanning %d [%s %d]\n", |
b481de9c ZY |
2382 | scan_ch->channel, |
2383 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", | |
2384 | (scan_ch->type & 1) ? | |
2385 | active_dwell : passive_dwell); | |
2386 | ||
2387 | scan_ch++; | |
2388 | added++; | |
2389 | } | |
2390 | ||
e1623446 | 2391 | IWL_DEBUG_SCAN(priv, "total channels to scan %d \n", added); |
b481de9c ZY |
2392 | return added; |
2393 | } | |
2394 | ||
4a8a4322 | 2395 | static void iwl3945_init_hw_rates(struct iwl_priv *priv, |
b481de9c ZY |
2396 | struct ieee80211_rate *rates) |
2397 | { | |
2398 | int i; | |
2399 | ||
2400 | for (i = 0; i < IWL_RATE_COUNT; i++) { | |
8318d78a JB |
2401 | rates[i].bitrate = iwl3945_rates[i].ieee * 5; |
2402 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ | |
2403 | rates[i].hw_value_short = i; | |
2404 | rates[i].flags = 0; | |
d9829a67 | 2405 | if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { |
b481de9c | 2406 | /* |
8318d78a | 2407 | * If CCK != 1M then set short preamble rate flag. |
b481de9c | 2408 | */ |
bb8c093b | 2409 | rates[i].flags |= (iwl3945_rates[i].plcp == 10) ? |
8318d78a | 2410 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
b481de9c | 2411 | } |
b481de9c ZY |
2412 | } |
2413 | } | |
2414 | ||
b481de9c ZY |
2415 | /****************************************************************************** |
2416 | * | |
2417 | * uCode download functions | |
2418 | * | |
2419 | ******************************************************************************/ | |
2420 | ||
4a8a4322 | 2421 | static void iwl3945_dealloc_ucode_pci(struct iwl_priv *priv) |
b481de9c | 2422 | { |
98c92211 TW |
2423 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
2424 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
2425 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
2426 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
2427 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
2428 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
2429 | } |
2430 | ||
2431 | /** | |
bb8c093b | 2432 | * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host, |
b481de9c ZY |
2433 | * looking at all data. |
2434 | */ | |
4a8a4322 | 2435 | static int iwl3945_verify_inst_full(struct iwl_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
2436 | { |
2437 | u32 val; | |
2438 | u32 save_len = len; | |
2439 | int rc = 0; | |
2440 | u32 errcnt; | |
2441 | ||
e1623446 | 2442 | IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
b481de9c | 2443 | |
5d49f498 | 2444 | rc = iwl_grab_nic_access(priv); |
b481de9c ZY |
2445 | if (rc) |
2446 | return rc; | |
2447 | ||
5d49f498 | 2448 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
250bdd21 | 2449 | IWL39_RTC_INST_LOWER_BOUND); |
b481de9c ZY |
2450 | |
2451 | errcnt = 0; | |
2452 | for (; len > 0; len -= sizeof(u32), image++) { | |
2453 | /* read data comes through single port, auto-incr addr */ | |
2454 | /* NOTE: Use the debugless read so we don't flood kernel log | |
2455 | * if IWL_DL_IO is set */ | |
5d49f498 | 2456 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c | 2457 | if (val != le32_to_cpu(*image)) { |
15b1687c | 2458 | IWL_ERR(priv, "uCode INST section is invalid at " |
b481de9c ZY |
2459 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
2460 | save_len - len, val, le32_to_cpu(*image)); | |
2461 | rc = -EIO; | |
2462 | errcnt++; | |
2463 | if (errcnt >= 20) | |
2464 | break; | |
2465 | } | |
2466 | } | |
2467 | ||
5d49f498 | 2468 | iwl_release_nic_access(priv); |
b481de9c ZY |
2469 | |
2470 | if (!errcnt) | |
e1623446 TW |
2471 | IWL_DEBUG_INFO(priv, |
2472 | "ucode image in INSTRUCTION memory is good\n"); | |
b481de9c ZY |
2473 | |
2474 | return rc; | |
2475 | } | |
2476 | ||
2477 | ||
2478 | /** | |
bb8c093b | 2479 | * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host, |
b481de9c ZY |
2480 | * using sample data 100 bytes apart. If these sample points are good, |
2481 | * it's a pretty good bet that everything between them is good, too. | |
2482 | */ | |
4a8a4322 | 2483 | static int iwl3945_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
2484 | { |
2485 | u32 val; | |
2486 | int rc = 0; | |
2487 | u32 errcnt = 0; | |
2488 | u32 i; | |
2489 | ||
e1623446 | 2490 | IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
b481de9c | 2491 | |
5d49f498 | 2492 | rc = iwl_grab_nic_access(priv); |
b481de9c ZY |
2493 | if (rc) |
2494 | return rc; | |
2495 | ||
2496 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { | |
2497 | /* read data comes through single port, auto-incr addr */ | |
2498 | /* NOTE: Use the debugless read so we don't flood kernel log | |
2499 | * if IWL_DL_IO is set */ | |
5d49f498 | 2500 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
250bdd21 | 2501 | i + IWL39_RTC_INST_LOWER_BOUND); |
5d49f498 | 2502 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c ZY |
2503 | if (val != le32_to_cpu(*image)) { |
2504 | #if 0 /* Enable this if you want to see details */ | |
15b1687c | 2505 | IWL_ERR(priv, "uCode INST section is invalid at " |
b481de9c ZY |
2506 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
2507 | i, val, *image); | |
2508 | #endif | |
2509 | rc = -EIO; | |
2510 | errcnt++; | |
2511 | if (errcnt >= 3) | |
2512 | break; | |
2513 | } | |
2514 | } | |
2515 | ||
5d49f498 | 2516 | iwl_release_nic_access(priv); |
b481de9c ZY |
2517 | |
2518 | return rc; | |
2519 | } | |
2520 | ||
2521 | ||
2522 | /** | |
bb8c093b | 2523 | * iwl3945_verify_ucode - determine which instruction image is in SRAM, |
b481de9c ZY |
2524 | * and verify its contents |
2525 | */ | |
4a8a4322 | 2526 | static int iwl3945_verify_ucode(struct iwl_priv *priv) |
b481de9c ZY |
2527 | { |
2528 | __le32 *image; | |
2529 | u32 len; | |
2530 | int rc = 0; | |
2531 | ||
2532 | /* Try bootstrap */ | |
2533 | image = (__le32 *)priv->ucode_boot.v_addr; | |
2534 | len = priv->ucode_boot.len; | |
bb8c093b | 2535 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c | 2536 | if (rc == 0) { |
e1623446 | 2537 | IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n"); |
b481de9c ZY |
2538 | return 0; |
2539 | } | |
2540 | ||
2541 | /* Try initialize */ | |
2542 | image = (__le32 *)priv->ucode_init.v_addr; | |
2543 | len = priv->ucode_init.len; | |
bb8c093b | 2544 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c | 2545 | if (rc == 0) { |
e1623446 | 2546 | IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n"); |
b481de9c ZY |
2547 | return 0; |
2548 | } | |
2549 | ||
2550 | /* Try runtime/protocol */ | |
2551 | image = (__le32 *)priv->ucode_code.v_addr; | |
2552 | len = priv->ucode_code.len; | |
bb8c093b | 2553 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c | 2554 | if (rc == 0) { |
e1623446 | 2555 | IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n"); |
b481de9c ZY |
2556 | return 0; |
2557 | } | |
2558 | ||
15b1687c | 2559 | IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); |
b481de9c | 2560 | |
9fbab516 BC |
2561 | /* Since nothing seems to match, show first several data entries in |
2562 | * instruction SRAM, so maybe visual inspection will give a clue. | |
2563 | * Selection of bootstrap image (vs. other images) is arbitrary. */ | |
b481de9c ZY |
2564 | image = (__le32 *)priv->ucode_boot.v_addr; |
2565 | len = priv->ucode_boot.len; | |
bb8c093b | 2566 | rc = iwl3945_verify_inst_full(priv, image, len); |
b481de9c ZY |
2567 | |
2568 | return rc; | |
2569 | } | |
2570 | ||
4a8a4322 | 2571 | static void iwl3945_nic_start(struct iwl_priv *priv) |
b481de9c ZY |
2572 | { |
2573 | /* Remove all resets to allow NIC to operate */ | |
5d49f498 | 2574 | iwl_write32(priv, CSR_RESET, 0); |
b481de9c ZY |
2575 | } |
2576 | ||
2577 | /** | |
bb8c093b | 2578 | * iwl3945_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
2579 | * |
2580 | * Copy into buffers for card to fetch via bus-mastering | |
2581 | */ | |
4a8a4322 | 2582 | static int iwl3945_read_ucode(struct iwl_priv *priv) |
b481de9c | 2583 | { |
a78fe754 | 2584 | struct iwl_ucode *ucode; |
a0987a8d | 2585 | int ret = -EINVAL, index; |
b481de9c ZY |
2586 | const struct firmware *ucode_raw; |
2587 | /* firmware file name contains uCode/driver compatibility version */ | |
a0987a8d RC |
2588 | const char *name_pre = priv->cfg->fw_name_pre; |
2589 | const unsigned int api_max = priv->cfg->ucode_api_max; | |
2590 | const unsigned int api_min = priv->cfg->ucode_api_min; | |
2591 | char buf[25]; | |
b481de9c ZY |
2592 | u8 *src; |
2593 | size_t len; | |
a0987a8d | 2594 | u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size; |
b481de9c ZY |
2595 | |
2596 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
2597 | * request_firmware() is synchronous, file is in memory on return. */ | |
a0987a8d RC |
2598 | for (index = api_max; index >= api_min; index--) { |
2599 | sprintf(buf, "%s%u%s", name_pre, index, ".ucode"); | |
2600 | ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev); | |
2601 | if (ret < 0) { | |
15b1687c | 2602 | IWL_ERR(priv, "%s firmware file req failed: %d\n", |
a0987a8d RC |
2603 | buf, ret); |
2604 | if (ret == -ENOENT) | |
2605 | continue; | |
2606 | else | |
2607 | goto error; | |
2608 | } else { | |
2609 | if (index < api_max) | |
15b1687c WT |
2610 | IWL_ERR(priv, "Loaded firmware %s, " |
2611 | "which is deprecated. " | |
2612 | " Please use API v%u instead.\n", | |
a0987a8d | 2613 | buf, api_max); |
e1623446 TW |
2614 | IWL_DEBUG_INFO(priv, "Got firmware '%s' file " |
2615 | "(%zd bytes) from disk\n", | |
a0987a8d RC |
2616 | buf, ucode_raw->size); |
2617 | break; | |
2618 | } | |
b481de9c ZY |
2619 | } |
2620 | ||
a0987a8d RC |
2621 | if (ret < 0) |
2622 | goto error; | |
b481de9c ZY |
2623 | |
2624 | /* Make sure that we got at least our header! */ | |
2625 | if (ucode_raw->size < sizeof(*ucode)) { | |
15b1687c | 2626 | IWL_ERR(priv, "File size way too small!\n"); |
90e759d1 | 2627 | ret = -EINVAL; |
b481de9c ZY |
2628 | goto err_release; |
2629 | } | |
2630 | ||
2631 | /* Data from ucode file: header followed by uCode images */ | |
2632 | ucode = (void *)ucode_raw->data; | |
2633 | ||
c02b3acd | 2634 | priv->ucode_ver = le32_to_cpu(ucode->ver); |
a0987a8d | 2635 | api_ver = IWL_UCODE_API(priv->ucode_ver); |
b481de9c ZY |
2636 | inst_size = le32_to_cpu(ucode->inst_size); |
2637 | data_size = le32_to_cpu(ucode->data_size); | |
2638 | init_size = le32_to_cpu(ucode->init_size); | |
2639 | init_data_size = le32_to_cpu(ucode->init_data_size); | |
2640 | boot_size = le32_to_cpu(ucode->boot_size); | |
2641 | ||
a0987a8d RC |
2642 | /* api_ver should match the api version forming part of the |
2643 | * firmware filename ... but we don't check for that and only rely | |
2644 | * on the API version read from firware header from here on forward */ | |
2645 | ||
2646 | if (api_ver < api_min || api_ver > api_max) { | |
15b1687c | 2647 | IWL_ERR(priv, "Driver unable to support your firmware API. " |
a0987a8d RC |
2648 | "Driver supports v%u, firmware is v%u.\n", |
2649 | api_max, api_ver); | |
2650 | priv->ucode_ver = 0; | |
2651 | ret = -EINVAL; | |
2652 | goto err_release; | |
2653 | } | |
2654 | if (api_ver != api_max) | |
15b1687c | 2655 | IWL_ERR(priv, "Firmware has old API version. Expected %u, " |
a0987a8d RC |
2656 | "got %u. New firmware can be obtained " |
2657 | "from http://www.intellinuxwireless.org.\n", | |
2658 | api_max, api_ver); | |
2659 | ||
978785a3 TW |
2660 | IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n", |
2661 | IWL_UCODE_MAJOR(priv->ucode_ver), | |
2662 | IWL_UCODE_MINOR(priv->ucode_ver), | |
2663 | IWL_UCODE_API(priv->ucode_ver), | |
2664 | IWL_UCODE_SERIAL(priv->ucode_ver)); | |
2665 | ||
e1623446 | 2666 | IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", |
a0987a8d | 2667 | priv->ucode_ver); |
e1623446 TW |
2668 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n", |
2669 | inst_size); | |
2670 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %u\n", | |
2671 | data_size); | |
2672 | IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %u\n", | |
2673 | init_size); | |
2674 | IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %u\n", | |
2675 | init_data_size); | |
2676 | IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n", | |
2677 | boot_size); | |
b481de9c | 2678 | |
a0987a8d | 2679 | |
b481de9c ZY |
2680 | /* Verify size of file vs. image size info in file's header */ |
2681 | if (ucode_raw->size < sizeof(*ucode) + | |
2682 | inst_size + data_size + init_size + | |
2683 | init_data_size + boot_size) { | |
2684 | ||
e1623446 TW |
2685 | IWL_DEBUG_INFO(priv, "uCode file size %zd too small\n", |
2686 | ucode_raw->size); | |
90e759d1 | 2687 | ret = -EINVAL; |
b481de9c ZY |
2688 | goto err_release; |
2689 | } | |
2690 | ||
2691 | /* Verify that uCode images will fit in card's SRAM */ | |
250bdd21 | 2692 | if (inst_size > IWL39_MAX_INST_SIZE) { |
e1623446 | 2693 | IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n", |
90e759d1 TW |
2694 | inst_size); |
2695 | ret = -EINVAL; | |
b481de9c ZY |
2696 | goto err_release; |
2697 | } | |
2698 | ||
250bdd21 | 2699 | if (data_size > IWL39_MAX_DATA_SIZE) { |
e1623446 | 2700 | IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n", |
90e759d1 TW |
2701 | data_size); |
2702 | ret = -EINVAL; | |
b481de9c ZY |
2703 | goto err_release; |
2704 | } | |
250bdd21 | 2705 | if (init_size > IWL39_MAX_INST_SIZE) { |
e1623446 TW |
2706 | IWL_DEBUG_INFO(priv, |
2707 | "uCode init instr len %d too large to fit in\n", | |
90e759d1 TW |
2708 | init_size); |
2709 | ret = -EINVAL; | |
b481de9c ZY |
2710 | goto err_release; |
2711 | } | |
250bdd21 | 2712 | if (init_data_size > IWL39_MAX_DATA_SIZE) { |
e1623446 TW |
2713 | IWL_DEBUG_INFO(priv, |
2714 | "uCode init data len %d too large to fit in\n", | |
90e759d1 TW |
2715 | init_data_size); |
2716 | ret = -EINVAL; | |
b481de9c ZY |
2717 | goto err_release; |
2718 | } | |
250bdd21 | 2719 | if (boot_size > IWL39_MAX_BSM_SIZE) { |
e1623446 TW |
2720 | IWL_DEBUG_INFO(priv, |
2721 | "uCode boot instr len %d too large to fit in\n", | |
90e759d1 TW |
2722 | boot_size); |
2723 | ret = -EINVAL; | |
b481de9c ZY |
2724 | goto err_release; |
2725 | } | |
2726 | ||
2727 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
2728 | ||
2729 | /* Runtime instructions and 2 copies of data: | |
2730 | * 1) unmodified from disk | |
2731 | * 2) backup cache for save/restore during power-downs */ | |
2732 | priv->ucode_code.len = inst_size; | |
98c92211 | 2733 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
2734 | |
2735 | priv->ucode_data.len = data_size; | |
98c92211 | 2736 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
2737 | |
2738 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 2739 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c | 2740 | |
90e759d1 TW |
2741 | if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr || |
2742 | !priv->ucode_data_backup.v_addr) | |
2743 | goto err_pci_alloc; | |
b481de9c ZY |
2744 | |
2745 | /* Initialization instructions and data */ | |
90e759d1 TW |
2746 | if (init_size && init_data_size) { |
2747 | priv->ucode_init.len = init_size; | |
98c92211 | 2748 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
2749 | |
2750 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 2751 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
2752 | |
2753 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
2754 | goto err_pci_alloc; | |
2755 | } | |
b481de9c ZY |
2756 | |
2757 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
2758 | if (boot_size) { |
2759 | priv->ucode_boot.len = boot_size; | |
98c92211 | 2760 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 2761 | |
90e759d1 TW |
2762 | if (!priv->ucode_boot.v_addr) |
2763 | goto err_pci_alloc; | |
2764 | } | |
b481de9c ZY |
2765 | |
2766 | /* Copy images into buffers for card's bus-master reads ... */ | |
2767 | ||
2768 | /* Runtime instructions (first block of data in file) */ | |
2769 | src = &ucode->data[0]; | |
2770 | len = priv->ucode_code.len; | |
e1623446 TW |
2771 | IWL_DEBUG_INFO(priv, |
2772 | "Copying (but not loading) uCode instr len %zd\n", len); | |
b481de9c | 2773 | memcpy(priv->ucode_code.v_addr, src, len); |
e1623446 | 2774 | IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", |
b481de9c ZY |
2775 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); |
2776 | ||
2777 | /* Runtime data (2nd block) | |
bb8c093b | 2778 | * NOTE: Copy into backup buffer will be done in iwl3945_up() */ |
b481de9c ZY |
2779 | src = &ucode->data[inst_size]; |
2780 | len = priv->ucode_data.len; | |
e1623446 TW |
2781 | IWL_DEBUG_INFO(priv, |
2782 | "Copying (but not loading) uCode data len %zd\n", len); | |
b481de9c ZY |
2783 | memcpy(priv->ucode_data.v_addr, src, len); |
2784 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
2785 | ||
2786 | /* Initialization instructions (3rd block) */ | |
2787 | if (init_size) { | |
2788 | src = &ucode->data[inst_size + data_size]; | |
2789 | len = priv->ucode_init.len; | |
e1623446 TW |
2790 | IWL_DEBUG_INFO(priv, |
2791 | "Copying (but not loading) init instr len %zd\n", len); | |
b481de9c ZY |
2792 | memcpy(priv->ucode_init.v_addr, src, len); |
2793 | } | |
2794 | ||
2795 | /* Initialization data (4th block) */ | |
2796 | if (init_data_size) { | |
2797 | src = &ucode->data[inst_size + data_size + init_size]; | |
2798 | len = priv->ucode_init_data.len; | |
e1623446 TW |
2799 | IWL_DEBUG_INFO(priv, |
2800 | "Copying (but not loading) init data len %zd\n", len); | |
b481de9c ZY |
2801 | memcpy(priv->ucode_init_data.v_addr, src, len); |
2802 | } | |
2803 | ||
2804 | /* Bootstrap instructions (5th block) */ | |
2805 | src = &ucode->data[inst_size + data_size + init_size + init_data_size]; | |
2806 | len = priv->ucode_boot.len; | |
e1623446 TW |
2807 | IWL_DEBUG_INFO(priv, |
2808 | "Copying (but not loading) boot instr len %zd\n", len); | |
b481de9c ZY |
2809 | memcpy(priv->ucode_boot.v_addr, src, len); |
2810 | ||
2811 | /* We have our copies now, allow OS release its copies */ | |
2812 | release_firmware(ucode_raw); | |
2813 | return 0; | |
2814 | ||
2815 | err_pci_alloc: | |
15b1687c | 2816 | IWL_ERR(priv, "failed to allocate pci memory\n"); |
90e759d1 | 2817 | ret = -ENOMEM; |
bb8c093b | 2818 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
2819 | |
2820 | err_release: | |
2821 | release_firmware(ucode_raw); | |
2822 | ||
2823 | error: | |
90e759d1 | 2824 | return ret; |
b481de9c ZY |
2825 | } |
2826 | ||
2827 | ||
2828 | /** | |
bb8c093b | 2829 | * iwl3945_set_ucode_ptrs - Set uCode address location |
b481de9c ZY |
2830 | * |
2831 | * Tell initialization uCode where to find runtime uCode. | |
2832 | * | |
2833 | * BSM registers initially contain pointers to initialization uCode. | |
2834 | * We need to replace them to load runtime uCode inst and data, | |
2835 | * and to save runtime data when powering down. | |
2836 | */ | |
4a8a4322 | 2837 | static int iwl3945_set_ucode_ptrs(struct iwl_priv *priv) |
b481de9c ZY |
2838 | { |
2839 | dma_addr_t pinst; | |
2840 | dma_addr_t pdata; | |
2841 | int rc = 0; | |
2842 | unsigned long flags; | |
2843 | ||
2844 | /* bits 31:0 for 3945 */ | |
2845 | pinst = priv->ucode_code.p_addr; | |
2846 | pdata = priv->ucode_data_backup.p_addr; | |
2847 | ||
2848 | spin_lock_irqsave(&priv->lock, flags); | |
5d49f498 | 2849 | rc = iwl_grab_nic_access(priv); |
b481de9c ZY |
2850 | if (rc) { |
2851 | spin_unlock_irqrestore(&priv->lock, flags); | |
2852 | return rc; | |
2853 | } | |
2854 | ||
2855 | /* Tell bootstrap uCode where to find image to load */ | |
5d49f498 AK |
2856 | iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
2857 | iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
2858 | iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, | |
b481de9c ZY |
2859 | priv->ucode_data.len); |
2860 | ||
a96a27f9 | 2861 | /* Inst byte count must be last to set up, bit 31 signals uCode |
b481de9c | 2862 | * that all new ptr/size info is in place */ |
5d49f498 | 2863 | iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, |
b481de9c ZY |
2864 | priv->ucode_code.len | BSM_DRAM_INST_LOAD); |
2865 | ||
5d49f498 | 2866 | iwl_release_nic_access(priv); |
b481de9c ZY |
2867 | |
2868 | spin_unlock_irqrestore(&priv->lock, flags); | |
2869 | ||
e1623446 | 2870 | IWL_DEBUG_INFO(priv, "Runtime uCode pointers are set.\n"); |
b481de9c ZY |
2871 | |
2872 | return rc; | |
2873 | } | |
2874 | ||
2875 | /** | |
bb8c093b | 2876 | * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received |
b481de9c ZY |
2877 | * |
2878 | * Called after REPLY_ALIVE notification received from "initialize" uCode. | |
2879 | * | |
b481de9c | 2880 | * Tell "initialize" uCode to go ahead and load the runtime uCode. |
9fbab516 | 2881 | */ |
4a8a4322 | 2882 | static void iwl3945_init_alive_start(struct iwl_priv *priv) |
b481de9c ZY |
2883 | { |
2884 | /* Check alive response for "valid" sign from uCode */ | |
2885 | if (priv->card_alive_init.is_valid != UCODE_VALID_OK) { | |
2886 | /* We had an error bringing up the hardware, so take it | |
2887 | * all the way back down so we can try again */ | |
e1623446 | 2888 | IWL_DEBUG_INFO(priv, "Initialize Alive failed.\n"); |
b481de9c ZY |
2889 | goto restart; |
2890 | } | |
2891 | ||
2892 | /* Bootstrap uCode has loaded initialize uCode ... verify inst image. | |
2893 | * This is a paranoid check, because we would not have gotten the | |
2894 | * "initialize" alive if code weren't properly loaded. */ | |
bb8c093b | 2895 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
2896 | /* Runtime instruction load was bad; |
2897 | * take it all the way back down so we can try again */ | |
e1623446 | 2898 | IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n"); |
b481de9c ZY |
2899 | goto restart; |
2900 | } | |
2901 | ||
2902 | /* Send pointers to protocol/runtime uCode image ... init code will | |
2903 | * load and launch runtime uCode, which will send us another "Alive" | |
2904 | * notification. */ | |
e1623446 | 2905 | IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); |
bb8c093b | 2906 | if (iwl3945_set_ucode_ptrs(priv)) { |
b481de9c ZY |
2907 | /* Runtime instruction load won't happen; |
2908 | * take it all the way back down so we can try again */ | |
e1623446 | 2909 | IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n"); |
b481de9c ZY |
2910 | goto restart; |
2911 | } | |
2912 | return; | |
2913 | ||
2914 | restart: | |
2915 | queue_work(priv->workqueue, &priv->restart); | |
2916 | } | |
2917 | ||
2918 | ||
9bdf5eca MA |
2919 | /* temporary */ |
2920 | static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, | |
2921 | struct sk_buff *skb); | |
2922 | ||
b481de9c | 2923 | /** |
bb8c093b | 2924 | * iwl3945_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 2925 | * from protocol/runtime uCode (initialization uCode's |
bb8c093b | 2926 | * Alive gets handled by iwl3945_init_alive_start()). |
b481de9c | 2927 | */ |
4a8a4322 | 2928 | static void iwl3945_alive_start(struct iwl_priv *priv) |
b481de9c ZY |
2929 | { |
2930 | int rc = 0; | |
2931 | int thermal_spin = 0; | |
2932 | u32 rfkill; | |
2933 | ||
e1623446 | 2934 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
b481de9c ZY |
2935 | |
2936 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
2937 | /* We had an error bringing up the hardware, so take it | |
2938 | * all the way back down so we can try again */ | |
e1623446 | 2939 | IWL_DEBUG_INFO(priv, "Alive failed.\n"); |
b481de9c ZY |
2940 | goto restart; |
2941 | } | |
2942 | ||
2943 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
2944 | * This is a paranoid check, because we would not have gotten the | |
2945 | * "runtime" alive if code weren't properly loaded. */ | |
bb8c093b | 2946 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
2947 | /* Runtime instruction load was bad; |
2948 | * take it all the way back down so we can try again */ | |
e1623446 | 2949 | IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n"); |
b481de9c ZY |
2950 | goto restart; |
2951 | } | |
2952 | ||
bb8c093b | 2953 | iwl3945_clear_stations_table(priv); |
b481de9c | 2954 | |
5d49f498 | 2955 | rc = iwl_grab_nic_access(priv); |
b481de9c | 2956 | if (rc) { |
39aadf8c | 2957 | IWL_WARN(priv, "Can not read RFKILL status from adapter\n"); |
b481de9c ZY |
2958 | return; |
2959 | } | |
2960 | ||
5d49f498 | 2961 | rfkill = iwl_read_prph(priv, APMG_RFKILL_REG); |
e1623446 | 2962 | IWL_DEBUG_INFO(priv, "RFKILL status: 0x%x\n", rfkill); |
5d49f498 | 2963 | iwl_release_nic_access(priv); |
b481de9c ZY |
2964 | |
2965 | if (rfkill & 0x1) { | |
2966 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
a96a27f9 | 2967 | /* if RFKILL is not on, then wait for thermal |
b481de9c | 2968 | * sensor in adapter to kick in */ |
bb8c093b | 2969 | while (iwl3945_hw_get_temperature(priv) == 0) { |
b481de9c ZY |
2970 | thermal_spin++; |
2971 | udelay(10); | |
2972 | } | |
2973 | ||
2974 | if (thermal_spin) | |
e1623446 | 2975 | IWL_DEBUG_INFO(priv, "Thermal calibration took %dus\n", |
b481de9c ZY |
2976 | thermal_spin * 10); |
2977 | } else | |
2978 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
2979 | ||
9fbab516 | 2980 | /* After the ALIVE response, we can send commands to 3945 uCode */ |
b481de9c ZY |
2981 | set_bit(STATUS_ALIVE, &priv->status); |
2982 | ||
2983 | /* Clear out the uCode error bit if it is set */ | |
2984 | clear_bit(STATUS_FW_ERROR, &priv->status); | |
2985 | ||
775a6e27 | 2986 | if (iwl_is_rfkill(priv)) |
b481de9c ZY |
2987 | return; |
2988 | ||
36d6825b | 2989 | ieee80211_wake_queues(priv->hw); |
b481de9c ZY |
2990 | |
2991 | priv->active_rate = priv->rates_mask; | |
2992 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
2993 | ||
d25aabb0 | 2994 | iwl_power_update_mode(priv, false); |
b481de9c | 2995 | |
8ccde88a | 2996 | if (iwl_is_associated(priv)) { |
bb8c093b | 2997 | struct iwl3945_rxon_cmd *active_rxon = |
8ccde88a | 2998 | (struct iwl3945_rxon_cmd *)(&priv->active_rxon); |
b481de9c | 2999 | |
8ccde88a SO |
3000 | memcpy(&priv->staging_rxon, &priv->active_rxon, |
3001 | sizeof(priv->staging_rxon)); | |
b481de9c ZY |
3002 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
3003 | } else { | |
3004 | /* Initialize our rx_config data */ | |
8ccde88a | 3005 | iwl_connection_init_rx_config(priv, priv->iw_mode); |
b481de9c ZY |
3006 | } |
3007 | ||
9fbab516 | 3008 | /* Configure Bluetooth device coexistence support */ |
17f841cd | 3009 | iwl_send_bt_config(priv); |
b481de9c ZY |
3010 | |
3011 | /* Configure the adapter for unassociated operation */ | |
bb8c093b | 3012 | iwl3945_commit_rxon(priv); |
b481de9c | 3013 | |
b481de9c ZY |
3014 | iwl3945_reg_txpower_periodic(priv); |
3015 | ||
fe00b5a5 RC |
3016 | iwl3945_led_register(priv); |
3017 | ||
e1623446 | 3018 | IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); |
a9f46786 | 3019 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 3020 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c ZY |
3021 | |
3022 | if (priv->error_recovering) | |
bb8c093b | 3023 | iwl3945_error_recovery(priv); |
b481de9c | 3024 | |
9bdf5eca MA |
3025 | /* reassociate for ADHOC mode */ |
3026 | if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) { | |
3027 | struct sk_buff *beacon = ieee80211_beacon_get(priv->hw, | |
3028 | priv->vif); | |
3029 | if (beacon) | |
3030 | iwl3945_mac_beacon_update(priv->hw, beacon); | |
3031 | } | |
3032 | ||
b481de9c ZY |
3033 | return; |
3034 | ||
3035 | restart: | |
3036 | queue_work(priv->workqueue, &priv->restart); | |
3037 | } | |
3038 | ||
4a8a4322 | 3039 | static void iwl3945_cancel_deferred_work(struct iwl_priv *priv); |
b481de9c | 3040 | |
4a8a4322 | 3041 | static void __iwl3945_down(struct iwl_priv *priv) |
b481de9c ZY |
3042 | { |
3043 | unsigned long flags; | |
3044 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
3045 | struct ieee80211_conf *conf = NULL; | |
3046 | ||
e1623446 | 3047 | IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); |
b481de9c ZY |
3048 | |
3049 | conf = ieee80211_get_hw_conf(priv->hw); | |
3050 | ||
3051 | if (!exit_pending) | |
3052 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
3053 | ||
ab53d8af | 3054 | iwl3945_led_unregister(priv); |
bb8c093b | 3055 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
3056 | |
3057 | /* Unblock any waiting calls */ | |
3058 | wake_up_interruptible_all(&priv->wait_command_queue); | |
3059 | ||
b481de9c ZY |
3060 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
3061 | * exiting the module */ | |
3062 | if (!exit_pending) | |
3063 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
3064 | ||
3065 | /* stop and reset the on-board processor */ | |
5d49f498 | 3066 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
3067 | |
3068 | /* tell the device to stop sending interrupts */ | |
0359facc | 3069 | spin_lock_irqsave(&priv->lock, flags); |
ed3b932e | 3070 | iwl_disable_interrupts(priv); |
0359facc MA |
3071 | spin_unlock_irqrestore(&priv->lock, flags); |
3072 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
3073 | |
3074 | if (priv->mac80211_registered) | |
3075 | ieee80211_stop_queues(priv->hw); | |
3076 | ||
bb8c093b | 3077 | /* If we have not previously called iwl3945_init() then |
b481de9c | 3078 | * clear all bits but the RF Kill and SUSPEND bits and return */ |
775a6e27 | 3079 | if (!iwl_is_init(priv)) { |
b481de9c ZY |
3080 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
3081 | STATUS_RF_KILL_HW | | |
3082 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
3083 | STATUS_RF_KILL_SW | | |
9788864e RC |
3084 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
3085 | STATUS_GEO_CONFIGURED | | |
b481de9c | 3086 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
ebef2008 AK |
3087 | STATUS_IN_SUSPEND | |
3088 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
3089 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
3090 | goto exit; |
3091 | } | |
3092 | ||
3093 | /* ...otherwise clear out all the status bits but the RF Kill and | |
3094 | * SUSPEND bits and continue taking the NIC down. */ | |
3095 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << | |
3096 | STATUS_RF_KILL_HW | | |
3097 | test_bit(STATUS_RF_KILL_SW, &priv->status) << | |
3098 | STATUS_RF_KILL_SW | | |
9788864e RC |
3099 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
3100 | STATUS_GEO_CONFIGURED | | |
b481de9c ZY |
3101 | test_bit(STATUS_IN_SUSPEND, &priv->status) << |
3102 | STATUS_IN_SUSPEND | | |
3103 | test_bit(STATUS_FW_ERROR, &priv->status) << | |
ebef2008 AK |
3104 | STATUS_FW_ERROR | |
3105 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
3106 | STATUS_EXIT_PENDING; | |
b481de9c | 3107 | |
e9414b6b | 3108 | priv->cfg->ops->lib->apm_ops.reset(priv); |
b481de9c | 3109 | spin_lock_irqsave(&priv->lock, flags); |
5d49f498 | 3110 | iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); |
b481de9c ZY |
3111 | spin_unlock_irqrestore(&priv->lock, flags); |
3112 | ||
bb8c093b CH |
3113 | iwl3945_hw_txq_ctx_stop(priv); |
3114 | iwl3945_hw_rxq_stop(priv); | |
b481de9c ZY |
3115 | |
3116 | spin_lock_irqsave(&priv->lock, flags); | |
5d49f498 AK |
3117 | if (!iwl_grab_nic_access(priv)) { |
3118 | iwl_write_prph(priv, APMG_CLK_DIS_REG, | |
b481de9c | 3119 | APMG_CLK_VAL_DMA_CLK_RQT); |
5d49f498 | 3120 | iwl_release_nic_access(priv); |
b481de9c ZY |
3121 | } |
3122 | spin_unlock_irqrestore(&priv->lock, flags); | |
3123 | ||
3124 | udelay(5); | |
3125 | ||
e9414b6b AM |
3126 | if (exit_pending || test_bit(STATUS_IN_SUSPEND, &priv->status)) |
3127 | priv->cfg->ops->lib->apm_ops.stop(priv); | |
3128 | else | |
3129 | priv->cfg->ops->lib->apm_ops.reset(priv); | |
3130 | ||
b481de9c | 3131 | exit: |
3d24a9f7 | 3132 | memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
3133 | |
3134 | if (priv->ibss_beacon) | |
3135 | dev_kfree_skb(priv->ibss_beacon); | |
3136 | priv->ibss_beacon = NULL; | |
3137 | ||
3138 | /* clear out any free frames */ | |
bb8c093b | 3139 | iwl3945_clear_free_frames(priv); |
b481de9c ZY |
3140 | } |
3141 | ||
4a8a4322 | 3142 | static void iwl3945_down(struct iwl_priv *priv) |
b481de9c ZY |
3143 | { |
3144 | mutex_lock(&priv->mutex); | |
bb8c093b | 3145 | __iwl3945_down(priv); |
b481de9c | 3146 | mutex_unlock(&priv->mutex); |
b24d22b1 | 3147 | |
bb8c093b | 3148 | iwl3945_cancel_deferred_work(priv); |
b481de9c ZY |
3149 | } |
3150 | ||
3151 | #define MAX_HW_RESTARTS 5 | |
3152 | ||
4a8a4322 | 3153 | static int __iwl3945_up(struct iwl_priv *priv) |
b481de9c ZY |
3154 | { |
3155 | int rc, i; | |
3156 | ||
3157 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
39aadf8c | 3158 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
b481de9c ZY |
3159 | return -EIO; |
3160 | } | |
3161 | ||
3162 | if (test_bit(STATUS_RF_KILL_SW, &priv->status)) { | |
39aadf8c | 3163 | IWL_WARN(priv, "Radio disabled by SW RF kill (module " |
b481de9c | 3164 | "parameter)\n"); |
e655b9f0 ZY |
3165 | return -ENODEV; |
3166 | } | |
3167 | ||
e903fbd4 | 3168 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
15b1687c | 3169 | IWL_ERR(priv, "ucode not available for device bring up\n"); |
e903fbd4 RC |
3170 | return -EIO; |
3171 | } | |
3172 | ||
e655b9f0 | 3173 | /* If platform's RF_KILL switch is NOT set to KILL */ |
5d49f498 | 3174 | if (iwl_read32(priv, CSR_GP_CNTRL) & |
e655b9f0 ZY |
3175 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
3176 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3177 | else { | |
3178 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
3179 | if (!test_bit(STATUS_IN_SUSPEND, &priv->status)) { | |
39aadf8c | 3180 | IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n"); |
e655b9f0 ZY |
3181 | return -ENODEV; |
3182 | } | |
b481de9c | 3183 | } |
80fcc9e2 | 3184 | |
5d49f498 | 3185 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 3186 | |
bb8c093b | 3187 | rc = iwl3945_hw_nic_init(priv); |
b481de9c | 3188 | if (rc) { |
15b1687c | 3189 | IWL_ERR(priv, "Unable to int nic\n"); |
b481de9c ZY |
3190 | return rc; |
3191 | } | |
3192 | ||
3193 | /* make sure rfkill handshake bits are cleared */ | |
5d49f498 AK |
3194 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
3195 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
3196 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
3197 | ||
3198 | /* clear (again), then enable host interrupts */ | |
5d49f498 | 3199 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
ed3b932e | 3200 | iwl_enable_interrupts(priv); |
b481de9c ZY |
3201 | |
3202 | /* really make sure rfkill handshake bits are cleared */ | |
5d49f498 AK |
3203 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
3204 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
3205 | |
3206 | /* Copy original ucode data image from disk into backup cache. | |
3207 | * This will be used to initialize the on-board processor's | |
3208 | * data SRAM for a clean start when the runtime program first loads. */ | |
3209 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 3210 | priv->ucode_data.len); |
b481de9c | 3211 | |
e655b9f0 ZY |
3212 | /* We return success when we resume from suspend and rf_kill is on. */ |
3213 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
3214 | return 0; | |
3215 | ||
b481de9c ZY |
3216 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
3217 | ||
bb8c093b | 3218 | iwl3945_clear_stations_table(priv); |
b481de9c ZY |
3219 | |
3220 | /* load bootstrap state machine, | |
3221 | * load bootstrap program into processor's memory, | |
3222 | * prepare to load the "initialize" uCode */ | |
0164b9b4 | 3223 | priv->cfg->ops->lib->load_ucode(priv); |
b481de9c ZY |
3224 | |
3225 | if (rc) { | |
15b1687c WT |
3226 | IWL_ERR(priv, |
3227 | "Unable to set up bootstrap uCode: %d\n", rc); | |
b481de9c ZY |
3228 | continue; |
3229 | } | |
3230 | ||
3231 | /* start card; "initialize" will load runtime ucode */ | |
bb8c093b | 3232 | iwl3945_nic_start(priv); |
b481de9c | 3233 | |
e1623446 | 3234 | IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n"); |
b481de9c ZY |
3235 | |
3236 | return 0; | |
3237 | } | |
3238 | ||
3239 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
bb8c093b | 3240 | __iwl3945_down(priv); |
ebef2008 | 3241 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c ZY |
3242 | |
3243 | /* tried to restart and config the device for as long as our | |
3244 | * patience could withstand */ | |
15b1687c | 3245 | IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i); |
b481de9c ZY |
3246 | return -EIO; |
3247 | } | |
3248 | ||
3249 | ||
3250 | /***************************************************************************** | |
3251 | * | |
3252 | * Workqueue callbacks | |
3253 | * | |
3254 | *****************************************************************************/ | |
3255 | ||
bb8c093b | 3256 | static void iwl3945_bg_init_alive_start(struct work_struct *data) |
b481de9c | 3257 | { |
4a8a4322 AK |
3258 | struct iwl_priv *priv = |
3259 | container_of(data, struct iwl_priv, init_alive_start.work); | |
b481de9c ZY |
3260 | |
3261 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3262 | return; | |
3263 | ||
3264 | mutex_lock(&priv->mutex); | |
bb8c093b | 3265 | iwl3945_init_alive_start(priv); |
b481de9c ZY |
3266 | mutex_unlock(&priv->mutex); |
3267 | } | |
3268 | ||
bb8c093b | 3269 | static void iwl3945_bg_alive_start(struct work_struct *data) |
b481de9c | 3270 | { |
4a8a4322 AK |
3271 | struct iwl_priv *priv = |
3272 | container_of(data, struct iwl_priv, alive_start.work); | |
b481de9c ZY |
3273 | |
3274 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3275 | return; | |
3276 | ||
3277 | mutex_lock(&priv->mutex); | |
bb8c093b | 3278 | iwl3945_alive_start(priv); |
b481de9c ZY |
3279 | mutex_unlock(&priv->mutex); |
3280 | } | |
3281 | ||
2663516d HS |
3282 | static void iwl3945_rfkill_poll(struct work_struct *data) |
3283 | { | |
3284 | struct iwl_priv *priv = | |
3285 | container_of(data, struct iwl_priv, rfkill_poll.work); | |
3286 | unsigned long status = priv->status; | |
3287 | ||
3288 | if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) | |
3289 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
3290 | else | |
3291 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
3292 | ||
3293 | if (test_bit(STATUS_RF_KILL_HW, &status) != test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
3294 | queue_work(priv->workqueue, &priv->rf_kill); | |
3295 | ||
3296 | queue_delayed_work(priv->workqueue, &priv->rfkill_poll, | |
3297 | round_jiffies_relative(2 * HZ)); | |
3298 | ||
3299 | } | |
3300 | ||
b481de9c | 3301 | #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ) |
bb8c093b | 3302 | static void iwl3945_bg_request_scan(struct work_struct *data) |
b481de9c | 3303 | { |
4a8a4322 AK |
3304 | struct iwl_priv *priv = |
3305 | container_of(data, struct iwl_priv, request_scan); | |
c2d79b48 | 3306 | struct iwl_host_cmd cmd = { |
b481de9c | 3307 | .id = REPLY_SCAN_CMD, |
bb8c093b | 3308 | .len = sizeof(struct iwl3945_scan_cmd), |
b481de9c ZY |
3309 | .meta.flags = CMD_SIZE_HUGE, |
3310 | }; | |
3311 | int rc = 0; | |
bb8c093b | 3312 | struct iwl3945_scan_cmd *scan; |
b481de9c | 3313 | struct ieee80211_conf *conf = NULL; |
f9340520 | 3314 | u8 n_probes = 2; |
8318d78a | 3315 | enum ieee80211_band band; |
9387b7ca | 3316 | DECLARE_SSID_BUF(ssid); |
b481de9c ZY |
3317 | |
3318 | conf = ieee80211_get_hw_conf(priv->hw); | |
3319 | ||
3320 | mutex_lock(&priv->mutex); | |
3321 | ||
775a6e27 | 3322 | if (!iwl_is_ready(priv)) { |
39aadf8c | 3323 | IWL_WARN(priv, "request scan called when driver not ready.\n"); |
b481de9c ZY |
3324 | goto done; |
3325 | } | |
3326 | ||
a96a27f9 | 3327 | /* Make sure the scan wasn't canceled before this queued work |
b481de9c ZY |
3328 | * was given the chance to run... */ |
3329 | if (!test_bit(STATUS_SCANNING, &priv->status)) | |
3330 | goto done; | |
3331 | ||
3332 | /* This should never be called or scheduled if there is currently | |
3333 | * a scan active in the hardware. */ | |
3334 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { | |
e1623446 TW |
3335 | IWL_DEBUG_INFO(priv, "Multiple concurrent scan requests " |
3336 | "Ignoring second request.\n"); | |
b481de9c ZY |
3337 | rc = -EIO; |
3338 | goto done; | |
3339 | } | |
3340 | ||
3341 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
e1623446 | 3342 | IWL_DEBUG_SCAN(priv, "Aborting scan due to device shutdown\n"); |
b481de9c ZY |
3343 | goto done; |
3344 | } | |
3345 | ||
3346 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
e1623446 TW |
3347 | IWL_DEBUG_HC(priv, |
3348 | "Scan request while abort pending. Queuing.\n"); | |
b481de9c ZY |
3349 | goto done; |
3350 | } | |
3351 | ||
775a6e27 | 3352 | if (iwl_is_rfkill(priv)) { |
e1623446 | 3353 | IWL_DEBUG_HC(priv, "Aborting scan due to RF Kill activation\n"); |
b481de9c ZY |
3354 | goto done; |
3355 | } | |
3356 | ||
3357 | if (!test_bit(STATUS_READY, &priv->status)) { | |
e1623446 TW |
3358 | IWL_DEBUG_HC(priv, |
3359 | "Scan request while uninitialized. Queuing.\n"); | |
b481de9c ZY |
3360 | goto done; |
3361 | } | |
3362 | ||
3363 | if (!priv->scan_bands) { | |
e1623446 | 3364 | IWL_DEBUG_HC(priv, "Aborting scan due to no requested bands\n"); |
b481de9c ZY |
3365 | goto done; |
3366 | } | |
3367 | ||
805cee5b WT |
3368 | if (!priv->scan) { |
3369 | priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) + | |
b481de9c | 3370 | IWL_MAX_SCAN_SIZE, GFP_KERNEL); |
805cee5b | 3371 | if (!priv->scan) { |
b481de9c ZY |
3372 | rc = -ENOMEM; |
3373 | goto done; | |
3374 | } | |
3375 | } | |
805cee5b | 3376 | scan = priv->scan; |
bb8c093b | 3377 | memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE); |
b481de9c ZY |
3378 | |
3379 | scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; | |
3380 | scan->quiet_time = IWL_ACTIVE_QUIET_TIME; | |
3381 | ||
8ccde88a | 3382 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
3383 | u16 interval = 0; |
3384 | u32 extra; | |
3385 | u32 suspend_time = 100; | |
3386 | u32 scan_suspend_time = 100; | |
3387 | unsigned long flags; | |
3388 | ||
e1623446 | 3389 | IWL_DEBUG_INFO(priv, "Scanning while associated...\n"); |
b481de9c ZY |
3390 | |
3391 | spin_lock_irqsave(&priv->lock, flags); | |
3392 | interval = priv->beacon_int; | |
3393 | spin_unlock_irqrestore(&priv->lock, flags); | |
3394 | ||
3395 | scan->suspend_time = 0; | |
15e869d8 | 3396 | scan->max_out_time = cpu_to_le32(200 * 1024); |
b481de9c ZY |
3397 | if (!interval) |
3398 | interval = suspend_time; | |
3399 | /* | |
3400 | * suspend time format: | |
3401 | * 0-19: beacon interval in usec (time before exec.) | |
3402 | * 20-23: 0 | |
3403 | * 24-31: number of beacons (suspend between channels) | |
3404 | */ | |
3405 | ||
3406 | extra = (suspend_time / interval) << 24; | |
3407 | scan_suspend_time = 0xFF0FFFFF & | |
3408 | (extra | ((suspend_time % interval) * 1024)); | |
3409 | ||
3410 | scan->suspend_time = cpu_to_le32(scan_suspend_time); | |
e1623446 | 3411 | IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n", |
b481de9c ZY |
3412 | scan_suspend_time, interval); |
3413 | } | |
3414 | ||
3415 | /* We should add the ability for user to lock to PASSIVE ONLY */ | |
3416 | if (priv->one_direct_scan) { | |
e1623446 TW |
3417 | IWL_DEBUG_SCAN(priv, "Kicking off one direct scan for '%s'\n", |
3418 | print_ssid(ssid, priv->direct_ssid, | |
9387b7ca | 3419 | priv->direct_ssid_len)); |
b481de9c ZY |
3420 | scan->direct_scan[0].id = WLAN_EID_SSID; |
3421 | scan->direct_scan[0].len = priv->direct_ssid_len; | |
3422 | memcpy(scan->direct_scan[0].ssid, | |
3423 | priv->direct_ssid, priv->direct_ssid_len); | |
f9340520 | 3424 | n_probes++; |
f9340520 | 3425 | } else |
e1623446 | 3426 | IWL_DEBUG_SCAN(priv, "Kicking off one indirect scan.\n"); |
b481de9c ZY |
3427 | |
3428 | /* We don't build a direct scan probe request; the uCode will do | |
3429 | * that based on the direct_mask added to each channel entry */ | |
b481de9c | 3430 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
3832ec9d | 3431 | scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id; |
b481de9c ZY |
3432 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
3433 | ||
3434 | /* flags + rate selection */ | |
3435 | ||
66b5004d | 3436 | if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) { |
b481de9c ZY |
3437 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; |
3438 | scan->tx_cmd.rate = IWL_RATE_1M_PLCP; | |
3439 | scan->good_CRC_th = 0; | |
8318d78a | 3440 | band = IEEE80211_BAND_2GHZ; |
66b5004d | 3441 | } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) { |
b481de9c ZY |
3442 | scan->tx_cmd.rate = IWL_RATE_6M_PLCP; |
3443 | scan->good_CRC_th = IWL_GOOD_CRC_TH; | |
8318d78a | 3444 | band = IEEE80211_BAND_5GHZ; |
66b5004d | 3445 | } else { |
39aadf8c | 3446 | IWL_WARN(priv, "Invalid scan band count\n"); |
b481de9c ZY |
3447 | goto done; |
3448 | } | |
3449 | ||
77fecfb8 SO |
3450 | scan->tx_cmd.len = cpu_to_le16( |
3451 | iwl_fill_probe_req(priv, band, | |
3452 | (struct ieee80211_mgmt *)scan->data, | |
3453 | IWL_MAX_SCAN_SIZE - sizeof(*scan))); | |
3454 | ||
b481de9c ZY |
3455 | /* select Rx antennas */ |
3456 | scan->flags |= iwl3945_get_antenna_flags(priv); | |
3457 | ||
05c914fe | 3458 | if (priv->iw_mode == NL80211_IFTYPE_MONITOR) |
b481de9c ZY |
3459 | scan->filter_flags = RXON_FILTER_PROMISC_MSK; |
3460 | ||
f9340520 AK |
3461 | scan->channel_count = |
3462 | iwl3945_get_channels_for_scan(priv, band, 1, /* active */ | |
3463 | n_probes, | |
3464 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); | |
b481de9c | 3465 | |
14b54336 | 3466 | if (scan->channel_count == 0) { |
e1623446 | 3467 | IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count); |
14b54336 RC |
3468 | goto done; |
3469 | } | |
3470 | ||
b481de9c | 3471 | cmd.len += le16_to_cpu(scan->tx_cmd.len) + |
bb8c093b | 3472 | scan->channel_count * sizeof(struct iwl3945_scan_channel); |
b481de9c ZY |
3473 | cmd.data = scan; |
3474 | scan->len = cpu_to_le16(cmd.len); | |
3475 | ||
3476 | set_bit(STATUS_SCAN_HW, &priv->status); | |
518099a8 | 3477 | rc = iwl_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
3478 | if (rc) |
3479 | goto done; | |
3480 | ||
3481 | queue_delayed_work(priv->workqueue, &priv->scan_check, | |
3482 | IWL_SCAN_CHECK_WATCHDOG); | |
3483 | ||
3484 | mutex_unlock(&priv->mutex); | |
3485 | return; | |
3486 | ||
3487 | done: | |
2420ebc1 MA |
3488 | /* can not perform scan make sure we clear scanning |
3489 | * bits from status so next scan request can be performed. | |
3490 | * if we dont clear scanning status bit here all next scan | |
3491 | * will fail | |
3492 | */ | |
3493 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
3494 | clear_bit(STATUS_SCANNING, &priv->status); | |
3495 | ||
01ebd063 | 3496 | /* inform mac80211 scan aborted */ |
b481de9c ZY |
3497 | queue_work(priv->workqueue, &priv->scan_completed); |
3498 | mutex_unlock(&priv->mutex); | |
3499 | } | |
3500 | ||
bb8c093b | 3501 | static void iwl3945_bg_up(struct work_struct *data) |
b481de9c | 3502 | { |
4a8a4322 | 3503 | struct iwl_priv *priv = container_of(data, struct iwl_priv, up); |
b481de9c ZY |
3504 | |
3505 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3506 | return; | |
3507 | ||
3508 | mutex_lock(&priv->mutex); | |
bb8c093b | 3509 | __iwl3945_up(priv); |
b481de9c | 3510 | mutex_unlock(&priv->mutex); |
c0af96a6 | 3511 | iwl_rfkill_set_hw_state(priv); |
b481de9c ZY |
3512 | } |
3513 | ||
bb8c093b | 3514 | static void iwl3945_bg_restart(struct work_struct *data) |
b481de9c | 3515 | { |
4a8a4322 | 3516 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c ZY |
3517 | |
3518 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3519 | return; | |
3520 | ||
bb8c093b | 3521 | iwl3945_down(priv); |
b481de9c ZY |
3522 | queue_work(priv->workqueue, &priv->up); |
3523 | } | |
3524 | ||
bb8c093b | 3525 | static void iwl3945_bg_rx_replenish(struct work_struct *data) |
b481de9c | 3526 | { |
4a8a4322 AK |
3527 | struct iwl_priv *priv = |
3528 | container_of(data, struct iwl_priv, rx_replenish); | |
b481de9c ZY |
3529 | |
3530 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3531 | return; | |
3532 | ||
3533 | mutex_lock(&priv->mutex); | |
bb8c093b | 3534 | iwl3945_rx_replenish(priv); |
b481de9c ZY |
3535 | mutex_unlock(&priv->mutex); |
3536 | } | |
3537 | ||
7878a5a4 MA |
3538 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
3539 | ||
4a8a4322 | 3540 | static void iwl3945_post_associate(struct iwl_priv *priv) |
b481de9c | 3541 | { |
b481de9c ZY |
3542 | int rc = 0; |
3543 | struct ieee80211_conf *conf = NULL; | |
3544 | ||
05c914fe | 3545 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
15b1687c | 3546 | IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__); |
b481de9c ZY |
3547 | return; |
3548 | } | |
3549 | ||
3550 | ||
e1623446 | 3551 | IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n", |
8ccde88a | 3552 | priv->assoc_id, priv->active_rxon.bssid_addr); |
b481de9c ZY |
3553 | |
3554 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3555 | return; | |
3556 | ||
322a9811 | 3557 | if (!priv->vif || !priv->is_open) |
6ef89d0a | 3558 | return; |
322a9811 | 3559 | |
af0053d6 | 3560 | iwl_scan_cancel_timeout(priv, 200); |
15e869d8 | 3561 | |
b481de9c ZY |
3562 | conf = ieee80211_get_hw_conf(priv->hw); |
3563 | ||
8ccde88a | 3564 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 3565 | iwl3945_commit_rxon(priv); |
b481de9c | 3566 | |
28afaf91 | 3567 | memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd)); |
bb8c093b | 3568 | iwl3945_setup_rxon_timing(priv); |
518099a8 | 3569 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c ZY |
3570 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
3571 | if (rc) | |
39aadf8c | 3572 | IWL_WARN(priv, "REPLY_RXON_TIMING failed - " |
b481de9c ZY |
3573 | "Attempting to continue.\n"); |
3574 | ||
8ccde88a | 3575 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
b481de9c | 3576 | |
8ccde88a | 3577 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
b481de9c | 3578 | |
e1623446 | 3579 | IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n", |
b481de9c ZY |
3580 | priv->assoc_id, priv->beacon_int); |
3581 | ||
3582 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
8ccde88a | 3583 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
b481de9c | 3584 | else |
8ccde88a | 3585 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
b481de9c | 3586 | |
8ccde88a | 3587 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { |
b481de9c | 3588 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
8ccde88a | 3589 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; |
b481de9c | 3590 | else |
8ccde88a | 3591 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
b481de9c | 3592 | |
05c914fe | 3593 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
8ccde88a | 3594 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
b481de9c ZY |
3595 | |
3596 | } | |
3597 | ||
bb8c093b | 3598 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
3599 | |
3600 | switch (priv->iw_mode) { | |
05c914fe | 3601 | case NL80211_IFTYPE_STATION: |
bb8c093b | 3602 | iwl3945_rate_scale_init(priv->hw, IWL_AP_ID); |
b481de9c ZY |
3603 | break; |
3604 | ||
05c914fe | 3605 | case NL80211_IFTYPE_ADHOC: |
b481de9c | 3606 | |
ce546fd2 | 3607 | priv->assoc_id = 1; |
bb8c093b | 3608 | iwl3945_add_station(priv, priv->bssid, 0, 0); |
b481de9c | 3609 | iwl3945_sync_sta(priv, IWL_STA_ID, |
8318d78a | 3610 | (priv->band == IEEE80211_BAND_5GHZ) ? |
b481de9c ZY |
3611 | IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP, |
3612 | CMD_ASYNC); | |
bb8c093b CH |
3613 | iwl3945_rate_scale_init(priv->hw, IWL_STA_ID); |
3614 | iwl3945_send_beacon_cmd(priv); | |
b481de9c ZY |
3615 | |
3616 | break; | |
3617 | ||
3618 | default: | |
15b1687c | 3619 | IWL_ERR(priv, "%s Should not be called in %d mode\n", |
3ac7f146 | 3620 | __func__, priv->iw_mode); |
b481de9c ZY |
3621 | break; |
3622 | } | |
3623 | ||
14d2aac5 | 3624 | iwl_activate_qos(priv, 0); |
292ae174 | 3625 | |
7878a5a4 MA |
3626 | /* we have just associated, don't start scan too early */ |
3627 | priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; | |
cd56d331 AK |
3628 | } |
3629 | ||
e8975581 | 3630 | static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed); |
76bb77e0 | 3631 | |
b481de9c ZY |
3632 | /***************************************************************************** |
3633 | * | |
3634 | * mac80211 entry point functions | |
3635 | * | |
3636 | *****************************************************************************/ | |
3637 | ||
5a66926a ZY |
3638 | #define UCODE_READY_TIMEOUT (2 * HZ) |
3639 | ||
bb8c093b | 3640 | static int iwl3945_mac_start(struct ieee80211_hw *hw) |
b481de9c | 3641 | { |
4a8a4322 | 3642 | struct iwl_priv *priv = hw->priv; |
5a66926a | 3643 | int ret; |
b481de9c | 3644 | |
e1623446 | 3645 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c ZY |
3646 | |
3647 | /* we should be verifying the device is ready to be opened */ | |
3648 | mutex_lock(&priv->mutex); | |
3649 | ||
8ccde88a | 3650 | memset(&priv->staging_rxon, 0, sizeof(priv->staging_rxon)); |
5a66926a ZY |
3651 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... |
3652 | * ucode filename and max sizes are card-specific. */ | |
3653 | ||
3654 | if (!priv->ucode_code.len) { | |
3655 | ret = iwl3945_read_ucode(priv); | |
3656 | if (ret) { | |
15b1687c | 3657 | IWL_ERR(priv, "Could not read microcode: %d\n", ret); |
5a66926a ZY |
3658 | mutex_unlock(&priv->mutex); |
3659 | goto out_release_irq; | |
3660 | } | |
3661 | } | |
b481de9c | 3662 | |
e655b9f0 | 3663 | ret = __iwl3945_up(priv); |
b481de9c ZY |
3664 | |
3665 | mutex_unlock(&priv->mutex); | |
5a66926a | 3666 | |
c0af96a6 | 3667 | iwl_rfkill_set_hw_state(priv); |
80fcc9e2 | 3668 | |
e655b9f0 ZY |
3669 | if (ret) |
3670 | goto out_release_irq; | |
3671 | ||
e1623446 | 3672 | IWL_DEBUG_INFO(priv, "Start UP work.\n"); |
e655b9f0 ZY |
3673 | |
3674 | if (test_bit(STATUS_IN_SUSPEND, &priv->status)) | |
3675 | return 0; | |
3676 | ||
5a66926a ZY |
3677 | /* Wait for START_ALIVE from ucode. Otherwise callbacks from |
3678 | * mac80211 will not be run successfully. */ | |
3679 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
3680 | test_bit(STATUS_READY, &priv->status), | |
3681 | UCODE_READY_TIMEOUT); | |
3682 | if (!ret) { | |
3683 | if (!test_bit(STATUS_READY, &priv->status)) { | |
15b1687c WT |
3684 | IWL_ERR(priv, |
3685 | "Wait for START_ALIVE timeout after %dms.\n", | |
3686 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
5a66926a ZY |
3687 | ret = -ETIMEDOUT; |
3688 | goto out_release_irq; | |
3689 | } | |
3690 | } | |
3691 | ||
2663516d HS |
3692 | /* ucode is running and will send rfkill notifications, |
3693 | * no need to poll the killswitch state anymore */ | |
3694 | cancel_delayed_work(&priv->rfkill_poll); | |
3695 | ||
e655b9f0 | 3696 | priv->is_open = 1; |
e1623446 | 3697 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c | 3698 | return 0; |
5a66926a ZY |
3699 | |
3700 | out_release_irq: | |
e655b9f0 | 3701 | priv->is_open = 0; |
e1623446 | 3702 | IWL_DEBUG_MAC80211(priv, "leave - failed\n"); |
5a66926a | 3703 | return ret; |
b481de9c ZY |
3704 | } |
3705 | ||
bb8c093b | 3706 | static void iwl3945_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 3707 | { |
4a8a4322 | 3708 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3709 | |
e1623446 | 3710 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
6ef89d0a | 3711 | |
e655b9f0 | 3712 | if (!priv->is_open) { |
e1623446 | 3713 | IWL_DEBUG_MAC80211(priv, "leave - skip\n"); |
e655b9f0 ZY |
3714 | return; |
3715 | } | |
3716 | ||
b481de9c | 3717 | priv->is_open = 0; |
5a66926a | 3718 | |
775a6e27 | 3719 | if (iwl_is_ready_rf(priv)) { |
e655b9f0 ZY |
3720 | /* stop mac, cancel any scan request and clear |
3721 | * RXON_FILTER_ASSOC_MSK BIT | |
3722 | */ | |
5a66926a | 3723 | mutex_lock(&priv->mutex); |
af0053d6 | 3724 | iwl_scan_cancel_timeout(priv, 100); |
fde3571f | 3725 | mutex_unlock(&priv->mutex); |
fde3571f MA |
3726 | } |
3727 | ||
5a66926a ZY |
3728 | iwl3945_down(priv); |
3729 | ||
3730 | flush_workqueue(priv->workqueue); | |
2663516d HS |
3731 | |
3732 | /* start polling the killswitch state again */ | |
3733 | queue_delayed_work(priv->workqueue, &priv->rfkill_poll, | |
3734 | round_jiffies_relative(2 * HZ)); | |
6ef89d0a | 3735 | |
e1623446 | 3736 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
3737 | } |
3738 | ||
e039fa4a | 3739 | static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 3740 | { |
4a8a4322 | 3741 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3742 | |
e1623446 | 3743 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c | 3744 | |
e1623446 | 3745 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
e039fa4a | 3746 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 3747 | |
e039fa4a | 3748 | if (iwl3945_tx_skb(priv, skb)) |
b481de9c ZY |
3749 | dev_kfree_skb_any(skb); |
3750 | ||
e1623446 | 3751 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
637f8837 | 3752 | return NETDEV_TX_OK; |
b481de9c ZY |
3753 | } |
3754 | ||
bb8c093b | 3755 | static int iwl3945_mac_add_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
3756 | struct ieee80211_if_init_conf *conf) |
3757 | { | |
4a8a4322 | 3758 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3759 | unsigned long flags; |
3760 | ||
e1623446 | 3761 | IWL_DEBUG_MAC80211(priv, "enter: type %d\n", conf->type); |
b481de9c | 3762 | |
32bfd35d | 3763 | if (priv->vif) { |
e1623446 | 3764 | IWL_DEBUG_MAC80211(priv, "leave - vif != NULL\n"); |
864792e3 | 3765 | return -EOPNOTSUPP; |
b481de9c ZY |
3766 | } |
3767 | ||
3768 | spin_lock_irqsave(&priv->lock, flags); | |
32bfd35d | 3769 | priv->vif = conf->vif; |
60294de3 | 3770 | priv->iw_mode = conf->type; |
b481de9c ZY |
3771 | |
3772 | spin_unlock_irqrestore(&priv->lock, flags); | |
3773 | ||
3774 | mutex_lock(&priv->mutex); | |
864792e3 TW |
3775 | |
3776 | if (conf->mac_addr) { | |
e1623446 | 3777 | IWL_DEBUG_MAC80211(priv, "Set: %pM\n", conf->mac_addr); |
864792e3 TW |
3778 | memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN); |
3779 | } | |
3780 | ||
775a6e27 | 3781 | if (iwl_is_ready(priv)) |
5a66926a | 3782 | iwl3945_set_mode(priv, conf->type); |
b481de9c | 3783 | |
b481de9c ZY |
3784 | mutex_unlock(&priv->mutex); |
3785 | ||
e1623446 | 3786 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
3787 | return 0; |
3788 | } | |
3789 | ||
3790 | /** | |
bb8c093b | 3791 | * iwl3945_mac_config - mac80211 config callback |
b481de9c ZY |
3792 | * |
3793 | * We ignore conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME since it seems to | |
3794 | * be set inappropriately and the driver currently sets the hardware up to | |
3795 | * use it whenever needed. | |
3796 | */ | |
e8975581 | 3797 | static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed) |
b481de9c | 3798 | { |
4a8a4322 | 3799 | struct iwl_priv *priv = hw->priv; |
d20b3c65 | 3800 | const struct iwl_channel_info *ch_info; |
e8975581 | 3801 | struct ieee80211_conf *conf = &hw->conf; |
b481de9c | 3802 | unsigned long flags; |
76bb77e0 | 3803 | int ret = 0; |
b481de9c ZY |
3804 | |
3805 | mutex_lock(&priv->mutex); | |
e1623446 TW |
3806 | IWL_DEBUG_MAC80211(priv, "enter to channel %d\n", |
3807 | conf->channel->hw_value); | |
b481de9c | 3808 | |
775a6e27 | 3809 | if (!iwl_is_ready(priv)) { |
e1623446 | 3810 | IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); |
76bb77e0 ZY |
3811 | ret = -EIO; |
3812 | goto out; | |
b481de9c ZY |
3813 | } |
3814 | ||
df878d8f | 3815 | if (unlikely(!iwl3945_mod_params.disable_hw_scan && |
b481de9c | 3816 | test_bit(STATUS_SCANNING, &priv->status))) { |
e1623446 | 3817 | IWL_DEBUG_MAC80211(priv, "leave - scanning\n"); |
a0646470 | 3818 | set_bit(STATUS_CONF_PENDING, &priv->status); |
b481de9c | 3819 | mutex_unlock(&priv->mutex); |
a0646470 | 3820 | return 0; |
b481de9c ZY |
3821 | } |
3822 | ||
3823 | spin_lock_irqsave(&priv->lock, flags); | |
3824 | ||
e6148917 SO |
3825 | ch_info = iwl_get_channel_info(priv, conf->channel->band, |
3826 | conf->channel->hw_value); | |
b481de9c | 3827 | if (!is_channel_valid(ch_info)) { |
e1623446 TW |
3828 | IWL_DEBUG_SCAN(priv, |
3829 | "Channel %d [%d] is INVALID for this band.\n", | |
3830 | conf->channel->hw_value, conf->channel->band); | |
3831 | IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n"); | |
b481de9c | 3832 | spin_unlock_irqrestore(&priv->lock, flags); |
76bb77e0 ZY |
3833 | ret = -EINVAL; |
3834 | goto out; | |
b481de9c ZY |
3835 | } |
3836 | ||
8ccde88a | 3837 | iwl_set_rxon_channel(priv, conf->channel); |
b481de9c | 3838 | |
8ccde88a | 3839 | iwl_set_flags_for_band(priv, conf->channel->band); |
b481de9c ZY |
3840 | |
3841 | /* The list of supported rates and rate mask can be different | |
3842 | * for each phymode; since the phymode may have changed, reset | |
3843 | * the rate mask to what mac80211 lists */ | |
8ccde88a | 3844 | iwl_set_rate(priv); |
b481de9c ZY |
3845 | |
3846 | spin_unlock_irqrestore(&priv->lock, flags); | |
3847 | ||
3848 | #ifdef IEEE80211_CONF_CHANNEL_SWITCH | |
3849 | if (conf->flags & IEEE80211_CONF_CHANNEL_SWITCH) { | |
bb8c093b | 3850 | iwl3945_hw_channel_switch(priv, conf->channel); |
76bb77e0 | 3851 | goto out; |
b481de9c ZY |
3852 | } |
3853 | #endif | |
3854 | ||
7dc45f25 AK |
3855 | if (conf->radio_enabled && iwl_radio_kill_sw_enable_radio(priv)) { |
3856 | IWL_DEBUG_MAC80211(priv, "leave - RF-KILL - waiting for uCode\n"); | |
3857 | goto out; | |
3858 | } | |
b481de9c ZY |
3859 | |
3860 | if (!conf->radio_enabled) { | |
7dc45f25 | 3861 | iwl_radio_kill_sw_disable_radio(priv); |
e1623446 | 3862 | IWL_DEBUG_MAC80211(priv, "leave - radio disabled\n"); |
76bb77e0 | 3863 | goto out; |
b481de9c ZY |
3864 | } |
3865 | ||
775a6e27 | 3866 | if (iwl_is_rfkill(priv)) { |
e1623446 | 3867 | IWL_DEBUG_MAC80211(priv, "leave - RF kill\n"); |
76bb77e0 ZY |
3868 | ret = -EIO; |
3869 | goto out; | |
b481de9c ZY |
3870 | } |
3871 | ||
8ccde88a | 3872 | iwl_set_rate(priv); |
b481de9c | 3873 | |
8ccde88a SO |
3874 | if (memcmp(&priv->active_rxon, |
3875 | &priv->staging_rxon, sizeof(priv->staging_rxon))) | |
bb8c093b | 3876 | iwl3945_commit_rxon(priv); |
b481de9c | 3877 | else |
e1623446 | 3878 | IWL_DEBUG_INFO(priv, "Not re-sending same RXON configuration\n"); |
b481de9c | 3879 | |
e1623446 | 3880 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c | 3881 | |
76bb77e0 | 3882 | out: |
a0646470 | 3883 | clear_bit(STATUS_CONF_PENDING, &priv->status); |
b481de9c | 3884 | mutex_unlock(&priv->mutex); |
76bb77e0 | 3885 | return ret; |
b481de9c ZY |
3886 | } |
3887 | ||
4a8a4322 | 3888 | static void iwl3945_config_ap(struct iwl_priv *priv) |
b481de9c ZY |
3889 | { |
3890 | int rc = 0; | |
3891 | ||
d986bcd1 | 3892 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
3893 | return; |
3894 | ||
3895 | /* The following should be done only at AP bring up */ | |
8ccde88a | 3896 | if (!(iwl_is_associated(priv))) { |
b481de9c ZY |
3897 | |
3898 | /* RXON - unassoc (to set timing command) */ | |
8ccde88a | 3899 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 3900 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
3901 | |
3902 | /* RXON Timing */ | |
28afaf91 | 3903 | memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd)); |
bb8c093b | 3904 | iwl3945_setup_rxon_timing(priv); |
518099a8 SO |
3905 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
3906 | sizeof(priv->rxon_timing), | |
3907 | &priv->rxon_timing); | |
b481de9c | 3908 | if (rc) |
39aadf8c | 3909 | IWL_WARN(priv, "REPLY_RXON_TIMING failed - " |
b481de9c ZY |
3910 | "Attempting to continue.\n"); |
3911 | ||
3912 | /* FIXME: what should be the assoc_id for AP? */ | |
8ccde88a | 3913 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
b481de9c | 3914 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) |
8ccde88a | 3915 | priv->staging_rxon.flags |= |
b481de9c ZY |
3916 | RXON_FLG_SHORT_PREAMBLE_MSK; |
3917 | else | |
8ccde88a | 3918 | priv->staging_rxon.flags &= |
b481de9c ZY |
3919 | ~RXON_FLG_SHORT_PREAMBLE_MSK; |
3920 | ||
8ccde88a | 3921 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { |
b481de9c ZY |
3922 | if (priv->assoc_capability & |
3923 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
8ccde88a | 3924 | priv->staging_rxon.flags |= |
b481de9c ZY |
3925 | RXON_FLG_SHORT_SLOT_MSK; |
3926 | else | |
8ccde88a | 3927 | priv->staging_rxon.flags &= |
b481de9c ZY |
3928 | ~RXON_FLG_SHORT_SLOT_MSK; |
3929 | ||
05c914fe | 3930 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
8ccde88a | 3931 | priv->staging_rxon.flags &= |
b481de9c ZY |
3932 | ~RXON_FLG_SHORT_SLOT_MSK; |
3933 | } | |
3934 | /* restore RXON assoc */ | |
8ccde88a | 3935 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
bb8c093b | 3936 | iwl3945_commit_rxon(priv); |
b5323d36 | 3937 | iwl3945_add_station(priv, iwl_bcast_addr, 0, 0); |
556f8db7 | 3938 | } |
bb8c093b | 3939 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
3940 | |
3941 | /* FIXME - we need to add code here to detect a totally new | |
3942 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
3943 | * clear sta table, add BCAST sta... */ | |
3944 | } | |
3945 | ||
32bfd35d JB |
3946 | static int iwl3945_mac_config_interface(struct ieee80211_hw *hw, |
3947 | struct ieee80211_vif *vif, | |
4a8a4322 | 3948 | struct ieee80211_if_conf *conf) |
b481de9c | 3949 | { |
4a8a4322 | 3950 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
3951 | int rc; |
3952 | ||
3953 | if (conf == NULL) | |
3954 | return -EIO; | |
3955 | ||
b716bb91 | 3956 | if (priv->vif != vif) { |
e1623446 | 3957 | IWL_DEBUG_MAC80211(priv, "leave - priv->vif != vif\n"); |
b716bb91 EG |
3958 | return 0; |
3959 | } | |
3960 | ||
9d139c81 | 3961 | /* handle this temporarily here */ |
05c914fe | 3962 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC && |
9d139c81 JB |
3963 | conf->changed & IEEE80211_IFCC_BEACON) { |
3964 | struct sk_buff *beacon = ieee80211_beacon_get(hw, vif); | |
3965 | if (!beacon) | |
3966 | return -ENOMEM; | |
9bdf5eca | 3967 | mutex_lock(&priv->mutex); |
9d139c81 | 3968 | rc = iwl3945_mac_beacon_update(hw, beacon); |
9bdf5eca | 3969 | mutex_unlock(&priv->mutex); |
9d139c81 JB |
3970 | if (rc) |
3971 | return rc; | |
3972 | } | |
3973 | ||
775a6e27 | 3974 | if (!iwl_is_alive(priv)) |
5a66926a ZY |
3975 | return -EAGAIN; |
3976 | ||
b481de9c ZY |
3977 | mutex_lock(&priv->mutex); |
3978 | ||
b481de9c | 3979 | if (conf->bssid) |
e1623446 | 3980 | IWL_DEBUG_MAC80211(priv, "bssid: %pM\n", conf->bssid); |
b481de9c | 3981 | |
4150c572 JB |
3982 | /* |
3983 | * very dubious code was here; the probe filtering flag is never set: | |
3984 | * | |
b481de9c ZY |
3985 | if (unlikely(test_bit(STATUS_SCANNING, &priv->status)) && |
3986 | !(priv->hw->flags & IEEE80211_HW_NO_PROBE_FILTERING)) { | |
4150c572 | 3987 | */ |
b481de9c | 3988 | |
05c914fe | 3989 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
b481de9c ZY |
3990 | if (!conf->bssid) { |
3991 | conf->bssid = priv->mac_addr; | |
3992 | memcpy(priv->bssid, priv->mac_addr, ETH_ALEN); | |
e1623446 | 3993 | IWL_DEBUG_MAC80211(priv, "bssid was set to: %pM\n", |
e174961c | 3994 | conf->bssid); |
b481de9c ZY |
3995 | } |
3996 | if (priv->ibss_beacon) | |
3997 | dev_kfree_skb(priv->ibss_beacon); | |
3998 | ||
9d139c81 | 3999 | priv->ibss_beacon = ieee80211_beacon_get(hw, vif); |
b481de9c ZY |
4000 | } |
4001 | ||
775a6e27 | 4002 | if (iwl_is_rfkill(priv)) |
fde3571f MA |
4003 | goto done; |
4004 | ||
b481de9c ZY |
4005 | if (conf->bssid && !is_zero_ether_addr(conf->bssid) && |
4006 | !is_multicast_ether_addr(conf->bssid)) { | |
4007 | /* If there is currently a HW scan going on in the background | |
4008 | * then we need to cancel it else the RXON below will fail. */ | |
af0053d6 | 4009 | if (iwl_scan_cancel_timeout(priv, 100)) { |
39aadf8c | 4010 | IWL_WARN(priv, "Aborted scan still in progress " |
b481de9c | 4011 | "after 100ms\n"); |
e1623446 | 4012 | IWL_DEBUG_MAC80211(priv, "leaving:scan abort failed\n"); |
b481de9c ZY |
4013 | mutex_unlock(&priv->mutex); |
4014 | return -EAGAIN; | |
4015 | } | |
8ccde88a | 4016 | memcpy(priv->staging_rxon.bssid_addr, conf->bssid, ETH_ALEN); |
b481de9c ZY |
4017 | |
4018 | /* TODO: Audit driver for usage of these members and see | |
4019 | * if mac80211 deprecates them (priv->bssid looks like it | |
4020 | * shouldn't be there, but I haven't scanned the IBSS code | |
4021 | * to verify) - jpk */ | |
4022 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
4023 | ||
05c914fe | 4024 | if (priv->iw_mode == NL80211_IFTYPE_AP) |
bb8c093b | 4025 | iwl3945_config_ap(priv); |
b481de9c | 4026 | else { |
bb8c093b | 4027 | rc = iwl3945_commit_rxon(priv); |
05c914fe | 4028 | if ((priv->iw_mode == NL80211_IFTYPE_STATION) && rc) |
bb8c093b | 4029 | iwl3945_add_station(priv, |
8ccde88a | 4030 | priv->active_rxon.bssid_addr, 1, 0); |
b481de9c ZY |
4031 | } |
4032 | ||
4033 | } else { | |
af0053d6 | 4034 | iwl_scan_cancel_timeout(priv, 100); |
8ccde88a | 4035 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 4036 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
4037 | } |
4038 | ||
fde3571f | 4039 | done: |
e1623446 | 4040 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
4041 | mutex_unlock(&priv->mutex); |
4042 | ||
4043 | return 0; | |
4044 | } | |
4045 | ||
bb8c093b | 4046 | static void iwl3945_mac_remove_interface(struct ieee80211_hw *hw, |
b481de9c ZY |
4047 | struct ieee80211_if_init_conf *conf) |
4048 | { | |
4a8a4322 | 4049 | struct iwl_priv *priv = hw->priv; |
b481de9c | 4050 | |
e1623446 | 4051 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c ZY |
4052 | |
4053 | mutex_lock(&priv->mutex); | |
6ef89d0a | 4054 | |
775a6e27 | 4055 | if (iwl_is_ready_rf(priv)) { |
af0053d6 | 4056 | iwl_scan_cancel_timeout(priv, 100); |
8ccde88a | 4057 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
fde3571f MA |
4058 | iwl3945_commit_rxon(priv); |
4059 | } | |
32bfd35d JB |
4060 | if (priv->vif == conf->vif) { |
4061 | priv->vif = NULL; | |
b481de9c | 4062 | memset(priv->bssid, 0, ETH_ALEN); |
b481de9c ZY |
4063 | } |
4064 | mutex_unlock(&priv->mutex); | |
4065 | ||
e1623446 | 4066 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
4067 | } |
4068 | ||
cd56d331 AK |
4069 | #define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6) |
4070 | ||
4071 | static void iwl3945_bss_info_changed(struct ieee80211_hw *hw, | |
4072 | struct ieee80211_vif *vif, | |
4073 | struct ieee80211_bss_conf *bss_conf, | |
4074 | u32 changes) | |
4075 | { | |
4a8a4322 | 4076 | struct iwl_priv *priv = hw->priv; |
cd56d331 | 4077 | |
e1623446 | 4078 | IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes); |
cd56d331 AK |
4079 | |
4080 | if (changes & BSS_CHANGED_ERP_PREAMBLE) { | |
e1623446 | 4081 | IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n", |
cd56d331 AK |
4082 | bss_conf->use_short_preamble); |
4083 | if (bss_conf->use_short_preamble) | |
8ccde88a | 4084 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
cd56d331 | 4085 | else |
8ccde88a SO |
4086 | priv->staging_rxon.flags &= |
4087 | ~RXON_FLG_SHORT_PREAMBLE_MSK; | |
cd56d331 AK |
4088 | } |
4089 | ||
4090 | if (changes & BSS_CHANGED_ERP_CTS_PROT) { | |
e1623446 TW |
4091 | IWL_DEBUG_MAC80211(priv, "ERP_CTS %d\n", |
4092 | bss_conf->use_cts_prot); | |
cd56d331 | 4093 | if (bss_conf->use_cts_prot && (priv->band != IEEE80211_BAND_5GHZ)) |
8ccde88a | 4094 | priv->staging_rxon.flags |= RXON_FLG_TGG_PROTECT_MSK; |
cd56d331 | 4095 | else |
8ccde88a | 4096 | priv->staging_rxon.flags &= ~RXON_FLG_TGG_PROTECT_MSK; |
cd56d331 AK |
4097 | } |
4098 | ||
4099 | if (changes & BSS_CHANGED_ASSOC) { | |
e1623446 | 4100 | IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc); |
cd56d331 AK |
4101 | /* This should never happen as this function should |
4102 | * never be called from interrupt context. */ | |
4103 | if (WARN_ON_ONCE(in_interrupt())) | |
4104 | return; | |
4105 | if (bss_conf->assoc) { | |
4106 | priv->assoc_id = bss_conf->aid; | |
4107 | priv->beacon_int = bss_conf->beacon_int; | |
28afaf91 | 4108 | priv->timestamp = bss_conf->timestamp; |
cd56d331 | 4109 | priv->assoc_capability = bss_conf->assoc_capability; |
3dae0c42 | 4110 | priv->power_data.dtim_period = bss_conf->dtim_period; |
cd56d331 AK |
4111 | priv->next_scan_jiffies = jiffies + |
4112 | IWL_DELAY_NEXT_SCAN_AFTER_ASSOC; | |
4113 | mutex_lock(&priv->mutex); | |
4114 | iwl3945_post_associate(priv); | |
4115 | mutex_unlock(&priv->mutex); | |
4116 | } else { | |
4117 | priv->assoc_id = 0; | |
e1623446 TW |
4118 | IWL_DEBUG_MAC80211(priv, |
4119 | "DISASSOC %d\n", bss_conf->assoc); | |
cd56d331 | 4120 | } |
8ccde88a | 4121 | } else if (changes && iwl_is_associated(priv) && priv->assoc_id) { |
e1623446 TW |
4122 | IWL_DEBUG_MAC80211(priv, |
4123 | "Associated Changes %d\n", changes); | |
cd56d331 AK |
4124 | iwl3945_send_rxon_assoc(priv); |
4125 | } | |
4126 | ||
4127 | } | |
4128 | ||
bb8c093b | 4129 | static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
dc822b5d JB |
4130 | struct ieee80211_vif *vif, |
4131 | struct ieee80211_sta *sta, | |
4132 | struct ieee80211_key_conf *key) | |
b481de9c | 4133 | { |
4a8a4322 | 4134 | struct iwl_priv *priv = hw->priv; |
dc822b5d | 4135 | const u8 *addr; |
6e21f15c AK |
4136 | int ret = 0; |
4137 | u8 sta_id = IWL_INVALID_STATION; | |
4138 | u8 static_key; | |
b481de9c | 4139 | |
e1623446 | 4140 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c | 4141 | |
df878d8f | 4142 | if (iwl3945_mod_params.sw_crypto) { |
e1623446 | 4143 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
b481de9c ZY |
4144 | return -EOPNOTSUPP; |
4145 | } | |
4146 | ||
42986796 | 4147 | addr = sta ? sta->addr : iwl_bcast_addr; |
6e21f15c AK |
4148 | static_key = !iwl_is_associated(priv); |
4149 | ||
4150 | if (!static_key) { | |
4151 | sta_id = iwl3945_hw_find_station(priv, addr); | |
4152 | if (sta_id == IWL_INVALID_STATION) { | |
4153 | IWL_DEBUG_MAC80211(priv, "leave - %pMnot in station map.\n", | |
4154 | addr); | |
4155 | return -EINVAL; | |
4156 | } | |
b481de9c ZY |
4157 | } |
4158 | ||
4159 | mutex_lock(&priv->mutex); | |
af0053d6 | 4160 | iwl_scan_cancel_timeout(priv, 100); |
6e21f15c | 4161 | mutex_unlock(&priv->mutex); |
15e869d8 | 4162 | |
b481de9c | 4163 | switch (cmd) { |
6e21f15c AK |
4164 | case SET_KEY: |
4165 | if (static_key) | |
4166 | ret = iwl3945_set_static_key(priv, key); | |
4167 | else | |
4168 | ret = iwl3945_set_dynamic_key(priv, key, sta_id); | |
4169 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); | |
b481de9c ZY |
4170 | break; |
4171 | case DISABLE_KEY: | |
6e21f15c AK |
4172 | if (static_key) |
4173 | ret = iwl3945_remove_static_key(priv); | |
4174 | else | |
4175 | ret = iwl3945_clear_sta_key_info(priv, sta_id); | |
4176 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); | |
b481de9c ZY |
4177 | break; |
4178 | default: | |
42986796 | 4179 | ret = -EINVAL; |
b481de9c ZY |
4180 | } |
4181 | ||
e1623446 | 4182 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c | 4183 | |
42986796 | 4184 | return ret; |
b481de9c ZY |
4185 | } |
4186 | ||
e100bb64 | 4187 | static int iwl3945_mac_conf_tx(struct ieee80211_hw *hw, u16 queue, |
b481de9c ZY |
4188 | const struct ieee80211_tx_queue_params *params) |
4189 | { | |
4a8a4322 | 4190 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4191 | unsigned long flags; |
4192 | int q; | |
b481de9c | 4193 | |
e1623446 | 4194 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c | 4195 | |
775a6e27 | 4196 | if (!iwl_is_ready_rf(priv)) { |
e1623446 | 4197 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
b481de9c ZY |
4198 | return -EIO; |
4199 | } | |
4200 | ||
4201 | if (queue >= AC_NUM) { | |
e1623446 | 4202 | IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); |
b481de9c ZY |
4203 | return 0; |
4204 | } | |
4205 | ||
b481de9c ZY |
4206 | q = AC_NUM - 1 - queue; |
4207 | ||
4208 | spin_lock_irqsave(&priv->lock, flags); | |
4209 | ||
4210 | priv->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); | |
4211 | priv->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); | |
4212 | priv->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; | |
4213 | priv->qos_data.def_qos_parm.ac[q].edca_txop = | |
3330d7be | 4214 | cpu_to_le16((params->txop * 32)); |
b481de9c ZY |
4215 | |
4216 | priv->qos_data.def_qos_parm.ac[q].reserved1 = 0; | |
4217 | priv->qos_data.qos_active = 1; | |
4218 | ||
4219 | spin_unlock_irqrestore(&priv->lock, flags); | |
4220 | ||
4221 | mutex_lock(&priv->mutex); | |
05c914fe | 4222 | if (priv->iw_mode == NL80211_IFTYPE_AP) |
14d2aac5 | 4223 | iwl_activate_qos(priv, 1); |
8ccde88a | 4224 | else if (priv->assoc_id && iwl_is_associated(priv)) |
14d2aac5 | 4225 | iwl_activate_qos(priv, 0); |
b481de9c ZY |
4226 | |
4227 | mutex_unlock(&priv->mutex); | |
4228 | ||
e1623446 | 4229 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
4230 | return 0; |
4231 | } | |
4232 | ||
bb8c093b | 4233 | static int iwl3945_mac_get_tx_stats(struct ieee80211_hw *hw, |
b481de9c ZY |
4234 | struct ieee80211_tx_queue_stats *stats) |
4235 | { | |
4a8a4322 | 4236 | struct iwl_priv *priv = hw->priv; |
b481de9c | 4237 | int i, avail; |
188cf6c7 | 4238 | struct iwl_tx_queue *txq; |
d20b3c65 | 4239 | struct iwl_queue *q; |
b481de9c ZY |
4240 | unsigned long flags; |
4241 | ||
e1623446 | 4242 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c | 4243 | |
775a6e27 | 4244 | if (!iwl_is_ready_rf(priv)) { |
e1623446 | 4245 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
b481de9c ZY |
4246 | return -EIO; |
4247 | } | |
4248 | ||
4249 | spin_lock_irqsave(&priv->lock, flags); | |
4250 | ||
4251 | for (i = 0; i < AC_NUM; i++) { | |
188cf6c7 | 4252 | txq = &priv->txq[i]; |
b481de9c | 4253 | q = &txq->q; |
d20b3c65 | 4254 | avail = iwl_queue_space(q); |
b481de9c | 4255 | |
57ffc589 JB |
4256 | stats[i].len = q->n_window - avail; |
4257 | stats[i].limit = q->n_window - q->high_mark; | |
4258 | stats[i].count = q->n_window; | |
b481de9c ZY |
4259 | |
4260 | } | |
4261 | spin_unlock_irqrestore(&priv->lock, flags); | |
4262 | ||
e1623446 | 4263 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
4264 | |
4265 | return 0; | |
4266 | } | |
4267 | ||
bb8c093b | 4268 | static void iwl3945_mac_reset_tsf(struct ieee80211_hw *hw) |
b481de9c | 4269 | { |
4a8a4322 | 4270 | struct iwl_priv *priv = hw->priv; |
b481de9c ZY |
4271 | unsigned long flags; |
4272 | ||
4273 | mutex_lock(&priv->mutex); | |
e1623446 | 4274 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c | 4275 | |
775a6e27 | 4276 | iwl_reset_qos(priv); |
292ae174 | 4277 | |
b481de9c ZY |
4278 | spin_lock_irqsave(&priv->lock, flags); |
4279 | priv->assoc_id = 0; | |
4280 | priv->assoc_capability = 0; | |
b481de9c ZY |
4281 | |
4282 | /* new association get rid of ibss beacon skb */ | |
4283 | if (priv->ibss_beacon) | |
4284 | dev_kfree_skb(priv->ibss_beacon); | |
4285 | ||
4286 | priv->ibss_beacon = NULL; | |
4287 | ||
4288 | priv->beacon_int = priv->hw->conf.beacon_int; | |
28afaf91 | 4289 | priv->timestamp = 0; |
05c914fe | 4290 | if ((priv->iw_mode == NL80211_IFTYPE_STATION)) |
b481de9c ZY |
4291 | priv->beacon_int = 0; |
4292 | ||
4293 | spin_unlock_irqrestore(&priv->lock, flags); | |
4294 | ||
775a6e27 | 4295 | if (!iwl_is_ready_rf(priv)) { |
e1623446 | 4296 | IWL_DEBUG_MAC80211(priv, "leave - not ready\n"); |
fde3571f MA |
4297 | mutex_unlock(&priv->mutex); |
4298 | return; | |
4299 | } | |
4300 | ||
15e869d8 MA |
4301 | /* we are restarting association process |
4302 | * clear RXON_FILTER_ASSOC_MSK bit | |
4303 | */ | |
05c914fe | 4304 | if (priv->iw_mode != NL80211_IFTYPE_AP) { |
af0053d6 | 4305 | iwl_scan_cancel_timeout(priv, 100); |
8ccde88a | 4306 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
bb8c093b | 4307 | iwl3945_commit_rxon(priv); |
15e869d8 MA |
4308 | } |
4309 | ||
b481de9c | 4310 | /* Per mac80211.h: This is only used in IBSS mode... */ |
05c914fe | 4311 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
15e869d8 | 4312 | |
e1623446 | 4313 | IWL_DEBUG_MAC80211(priv, "leave - not in IBSS\n"); |
b481de9c ZY |
4314 | mutex_unlock(&priv->mutex); |
4315 | return; | |
b481de9c ZY |
4316 | } |
4317 | ||
8ccde88a | 4318 | iwl_set_rate(priv); |
b481de9c ZY |
4319 | |
4320 | mutex_unlock(&priv->mutex); | |
4321 | ||
e1623446 | 4322 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
4323 | |
4324 | } | |
4325 | ||
e039fa4a | 4326 | static int iwl3945_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 4327 | { |
4a8a4322 | 4328 | struct iwl_priv *priv = hw->priv; |
b481de9c | 4329 | unsigned long flags; |
7c4cbb6e | 4330 | __le64 timestamp; |
b481de9c | 4331 | |
e1623446 | 4332 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c | 4333 | |
775a6e27 | 4334 | if (!iwl_is_ready_rf(priv)) { |
e1623446 | 4335 | IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); |
b481de9c ZY |
4336 | return -EIO; |
4337 | } | |
4338 | ||
05c914fe | 4339 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
e1623446 | 4340 | IWL_DEBUG_MAC80211(priv, "leave - not IBSS\n"); |
b481de9c ZY |
4341 | return -EIO; |
4342 | } | |
4343 | ||
4344 | spin_lock_irqsave(&priv->lock, flags); | |
4345 | ||
4346 | if (priv->ibss_beacon) | |
4347 | dev_kfree_skb(priv->ibss_beacon); | |
4348 | ||
4349 | priv->ibss_beacon = skb; | |
4350 | ||
4351 | priv->assoc_id = 0; | |
7c4cbb6e AK |
4352 | timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp; |
4353 | priv->timestamp = le64_to_cpu(timestamp); | |
b481de9c | 4354 | |
e1623446 | 4355 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
4356 | spin_unlock_irqrestore(&priv->lock, flags); |
4357 | ||
775a6e27 | 4358 | iwl_reset_qos(priv); |
b481de9c | 4359 | |
dc4b1e7d | 4360 | iwl3945_post_associate(priv); |
b481de9c | 4361 | |
b481de9c ZY |
4362 | |
4363 | return 0; | |
4364 | } | |
4365 | ||
4366 | /***************************************************************************** | |
4367 | * | |
4368 | * sysfs attributes | |
4369 | * | |
4370 | *****************************************************************************/ | |
4371 | ||
d08853a3 | 4372 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
4373 | |
4374 | /* | |
4375 | * The following adds a new attribute to the sysfs representation | |
4376 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
4377 | * used for controlling the debug level. | |
4378 | * | |
4379 | * See the level definitions in iwl for details. | |
4380 | */ | |
40b8ec0b SO |
4381 | static ssize_t show_debug_level(struct device *d, |
4382 | struct device_attribute *attr, char *buf) | |
b481de9c | 4383 | { |
4a8a4322 | 4384 | struct iwl_priv *priv = d->driver_data; |
40b8ec0b SO |
4385 | |
4386 | return sprintf(buf, "0x%08X\n", priv->debug_level); | |
b481de9c | 4387 | } |
40b8ec0b SO |
4388 | static ssize_t store_debug_level(struct device *d, |
4389 | struct device_attribute *attr, | |
b481de9c ZY |
4390 | const char *buf, size_t count) |
4391 | { | |
4a8a4322 | 4392 | struct iwl_priv *priv = d->driver_data; |
40b8ec0b SO |
4393 | unsigned long val; |
4394 | int ret; | |
b481de9c | 4395 | |
40b8ec0b SO |
4396 | ret = strict_strtoul(buf, 0, &val); |
4397 | if (ret) | |
978785a3 | 4398 | IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf); |
b481de9c | 4399 | else |
40b8ec0b | 4400 | priv->debug_level = val; |
b481de9c ZY |
4401 | |
4402 | return strnlen(buf, count); | |
4403 | } | |
4404 | ||
40b8ec0b SO |
4405 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
4406 | show_debug_level, store_debug_level); | |
b481de9c | 4407 | |
d08853a3 | 4408 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
b481de9c | 4409 | |
b481de9c ZY |
4410 | static ssize_t show_temperature(struct device *d, |
4411 | struct device_attribute *attr, char *buf) | |
4412 | { | |
4a8a4322 | 4413 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c | 4414 | |
775a6e27 | 4415 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
4416 | return -EAGAIN; |
4417 | ||
bb8c093b | 4418 | return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv)); |
b481de9c ZY |
4419 | } |
4420 | ||
4421 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
4422 | ||
b481de9c ZY |
4423 | static ssize_t show_tx_power(struct device *d, |
4424 | struct device_attribute *attr, char *buf) | |
4425 | { | |
4a8a4322 | 4426 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
62ea9c5b | 4427 | return sprintf(buf, "%d\n", priv->tx_power_user_lmt); |
b481de9c ZY |
4428 | } |
4429 | ||
4430 | static ssize_t store_tx_power(struct device *d, | |
4431 | struct device_attribute *attr, | |
4432 | const char *buf, size_t count) | |
4433 | { | |
4a8a4322 | 4434 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4435 | char *p = (char *)buf; |
4436 | u32 val; | |
4437 | ||
4438 | val = simple_strtoul(p, &p, 10); | |
4439 | if (p == buf) | |
978785a3 | 4440 | IWL_INFO(priv, ": %s is not in decimal form.\n", buf); |
b481de9c | 4441 | else |
bb8c093b | 4442 | iwl3945_hw_reg_set_txpower(priv, val); |
b481de9c ZY |
4443 | |
4444 | return count; | |
4445 | } | |
4446 | ||
4447 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
4448 | ||
4449 | static ssize_t show_flags(struct device *d, | |
4450 | struct device_attribute *attr, char *buf) | |
4451 | { | |
4a8a4322 | 4452 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c | 4453 | |
8ccde88a | 4454 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); |
b481de9c ZY |
4455 | } |
4456 | ||
4457 | static ssize_t store_flags(struct device *d, | |
4458 | struct device_attribute *attr, | |
4459 | const char *buf, size_t count) | |
4460 | { | |
4a8a4322 | 4461 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4462 | u32 flags = simple_strtoul(buf, NULL, 0); |
4463 | ||
4464 | mutex_lock(&priv->mutex); | |
8ccde88a | 4465 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { |
b481de9c | 4466 | /* Cancel any currently running scans... */ |
af0053d6 | 4467 | if (iwl_scan_cancel_timeout(priv, 100)) |
39aadf8c | 4468 | IWL_WARN(priv, "Could not cancel scan.\n"); |
b481de9c | 4469 | else { |
e1623446 | 4470 | IWL_DEBUG_INFO(priv, "Committing rxon.flags = 0x%04X\n", |
b481de9c | 4471 | flags); |
8ccde88a | 4472 | priv->staging_rxon.flags = cpu_to_le32(flags); |
bb8c093b | 4473 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
4474 | } |
4475 | } | |
4476 | mutex_unlock(&priv->mutex); | |
4477 | ||
4478 | return count; | |
4479 | } | |
4480 | ||
4481 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
4482 | ||
4483 | static ssize_t show_filter_flags(struct device *d, | |
4484 | struct device_attribute *attr, char *buf) | |
4485 | { | |
4a8a4322 | 4486 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4487 | |
4488 | return sprintf(buf, "0x%04X\n", | |
8ccde88a | 4489 | le32_to_cpu(priv->active_rxon.filter_flags)); |
b481de9c ZY |
4490 | } |
4491 | ||
4492 | static ssize_t store_filter_flags(struct device *d, | |
4493 | struct device_attribute *attr, | |
4494 | const char *buf, size_t count) | |
4495 | { | |
4a8a4322 | 4496 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
b481de9c ZY |
4497 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
4498 | ||
4499 | mutex_lock(&priv->mutex); | |
8ccde88a | 4500 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { |
b481de9c | 4501 | /* Cancel any currently running scans... */ |
af0053d6 | 4502 | if (iwl_scan_cancel_timeout(priv, 100)) |
39aadf8c | 4503 | IWL_WARN(priv, "Could not cancel scan.\n"); |
b481de9c | 4504 | else { |
e1623446 | 4505 | IWL_DEBUG_INFO(priv, "Committing rxon.filter_flags = " |
b481de9c | 4506 | "0x%04X\n", filter_flags); |
8ccde88a | 4507 | priv->staging_rxon.filter_flags = |
b481de9c | 4508 | cpu_to_le32(filter_flags); |
bb8c093b | 4509 | iwl3945_commit_rxon(priv); |
b481de9c ZY |
4510 | } |
4511 | } | |
4512 | mutex_unlock(&priv->mutex); | |
4513 | ||
4514 | return count; | |
4515 | } | |
4516 | ||
4517 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
4518 | store_filter_flags); | |
4519 | ||
c8b0e6e1 | 4520 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
4521 | |
4522 | static ssize_t show_measurement(struct device *d, | |
4523 | struct device_attribute *attr, char *buf) | |
4524 | { | |
4a8a4322 | 4525 | struct iwl_priv *priv = dev_get_drvdata(d); |
600c0e11 | 4526 | struct iwl_spectrum_notification measure_report; |
b481de9c | 4527 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
3ac7f146 | 4528 | u8 *data = (u8 *)&measure_report; |
b481de9c ZY |
4529 | unsigned long flags; |
4530 | ||
4531 | spin_lock_irqsave(&priv->lock, flags); | |
4532 | if (!(priv->measurement_status & MEASUREMENT_READY)) { | |
4533 | spin_unlock_irqrestore(&priv->lock, flags); | |
4534 | return 0; | |
4535 | } | |
4536 | memcpy(&measure_report, &priv->measure_report, size); | |
4537 | priv->measurement_status = 0; | |
4538 | spin_unlock_irqrestore(&priv->lock, flags); | |
4539 | ||
4540 | while (size && (PAGE_SIZE - len)) { | |
4541 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
4542 | PAGE_SIZE - len, 1); | |
4543 | len = strlen(buf); | |
4544 | if (PAGE_SIZE - len) | |
4545 | buf[len++] = '\n'; | |
4546 | ||
4547 | ofs += 16; | |
4548 | size -= min(size, 16U); | |
4549 | } | |
4550 | ||
4551 | return len; | |
4552 | } | |
4553 | ||
4554 | static ssize_t store_measurement(struct device *d, | |
4555 | struct device_attribute *attr, | |
4556 | const char *buf, size_t count) | |
4557 | { | |
4a8a4322 | 4558 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c | 4559 | struct ieee80211_measurement_params params = { |
8ccde88a | 4560 | .channel = le16_to_cpu(priv->active_rxon.channel), |
b481de9c ZY |
4561 | .start_time = cpu_to_le64(priv->last_tsf), |
4562 | .duration = cpu_to_le16(1), | |
4563 | }; | |
4564 | u8 type = IWL_MEASURE_BASIC; | |
4565 | u8 buffer[32]; | |
4566 | u8 channel; | |
4567 | ||
4568 | if (count) { | |
4569 | char *p = buffer; | |
4570 | strncpy(buffer, buf, min(sizeof(buffer), count)); | |
4571 | channel = simple_strtoul(p, NULL, 0); | |
4572 | if (channel) | |
4573 | params.channel = channel; | |
4574 | ||
4575 | p = buffer; | |
4576 | while (*p && *p != ' ') | |
4577 | p++; | |
4578 | if (*p) | |
4579 | type = simple_strtoul(p + 1, NULL, 0); | |
4580 | } | |
4581 | ||
e1623446 | 4582 | IWL_DEBUG_INFO(priv, "Invoking measurement of type %d on " |
b481de9c | 4583 | "channel %d (for '%s')\n", type, params.channel, buf); |
bb8c093b | 4584 | iwl3945_get_measurement(priv, ¶ms, type); |
b481de9c ZY |
4585 | |
4586 | return count; | |
4587 | } | |
4588 | ||
4589 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, | |
4590 | show_measurement, store_measurement); | |
c8b0e6e1 | 4591 | #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */ |
b481de9c | 4592 | |
b481de9c ZY |
4593 | static ssize_t store_retry_rate(struct device *d, |
4594 | struct device_attribute *attr, | |
4595 | const char *buf, size_t count) | |
4596 | { | |
4a8a4322 | 4597 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
4598 | |
4599 | priv->retry_rate = simple_strtoul(buf, NULL, 0); | |
4600 | if (priv->retry_rate <= 0) | |
4601 | priv->retry_rate = 1; | |
4602 | ||
4603 | return count; | |
4604 | } | |
4605 | ||
4606 | static ssize_t show_retry_rate(struct device *d, | |
4607 | struct device_attribute *attr, char *buf) | |
4608 | { | |
4a8a4322 | 4609 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
4610 | return sprintf(buf, "%d", priv->retry_rate); |
4611 | } | |
4612 | ||
4613 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
4614 | store_retry_rate); | |
4615 | ||
d25aabb0 | 4616 | |
b481de9c ZY |
4617 | static ssize_t store_power_level(struct device *d, |
4618 | struct device_attribute *attr, | |
4619 | const char *buf, size_t count) | |
4620 | { | |
4a8a4322 | 4621 | struct iwl_priv *priv = dev_get_drvdata(d); |
d25aabb0 WT |
4622 | int ret; |
4623 | unsigned long mode; | |
4624 | ||
b481de9c | 4625 | |
b481de9c ZY |
4626 | mutex_lock(&priv->mutex); |
4627 | ||
775a6e27 | 4628 | if (!iwl_is_ready(priv)) { |
d25aabb0 | 4629 | ret = -EAGAIN; |
b481de9c ZY |
4630 | goto out; |
4631 | } | |
4632 | ||
d25aabb0 WT |
4633 | ret = strict_strtoul(buf, 10, &mode); |
4634 | if (ret) | |
4635 | goto out; | |
b481de9c | 4636 | |
d25aabb0 WT |
4637 | ret = iwl_power_set_user_mode(priv, mode); |
4638 | if (ret) { | |
4639 | IWL_DEBUG_MAC80211(priv, "failed setting power mode.\n"); | |
4640 | goto out; | |
b481de9c | 4641 | } |
d25aabb0 | 4642 | ret = count; |
b481de9c ZY |
4643 | |
4644 | out: | |
4645 | mutex_unlock(&priv->mutex); | |
d25aabb0 | 4646 | return ret; |
b481de9c ZY |
4647 | } |
4648 | ||
d25aabb0 WT |
4649 | static ssize_t show_power_level(struct device *d, |
4650 | struct device_attribute *attr, char *buf) | |
4651 | { | |
4652 | struct iwl_priv *priv = dev_get_drvdata(d); | |
4653 | int mode = priv->power_data.user_power_setting; | |
4654 | int system = priv->power_data.system_power_setting; | |
4655 | int level = priv->power_data.power_mode; | |
4656 | char *p = buf; | |
4657 | ||
4658 | switch (system) { | |
4659 | case IWL_POWER_SYS_AUTO: | |
4660 | p += sprintf(p, "SYSTEM:auto"); | |
4661 | break; | |
4662 | case IWL_POWER_SYS_AC: | |
4663 | p += sprintf(p, "SYSTEM:ac"); | |
4664 | break; | |
4665 | case IWL_POWER_SYS_BATTERY: | |
4666 | p += sprintf(p, "SYSTEM:battery"); | |
4667 | break; | |
4668 | } | |
4669 | ||
4670 | p += sprintf(p, "\tMODE:%s", (mode < IWL_POWER_AUTO) ? | |
4671 | "fixed" : "auto"); | |
4672 | p += sprintf(p, "\tINDEX:%d", level); | |
4673 | p += sprintf(p, "\n"); | |
4674 | return p - buf + 1; | |
4675 | } | |
4676 | ||
4677 | static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, | |
4678 | show_power_level, store_power_level); | |
4679 | ||
b481de9c ZY |
4680 | #define MAX_WX_STRING 80 |
4681 | ||
4682 | /* Values are in microsecond */ | |
4683 | static const s32 timeout_duration[] = { | |
4684 | 350000, | |
4685 | 250000, | |
4686 | 75000, | |
4687 | 37000, | |
4688 | 25000, | |
4689 | }; | |
4690 | static const s32 period_duration[] = { | |
4691 | 400000, | |
4692 | 700000, | |
4693 | 1000000, | |
4694 | 1000000, | |
4695 | 1000000 | |
4696 | }; | |
4697 | ||
b481de9c ZY |
4698 | static ssize_t show_channels(struct device *d, |
4699 | struct device_attribute *attr, char *buf) | |
4700 | { | |
8318d78a JB |
4701 | /* all this shit doesn't belong into sysfs anyway */ |
4702 | return 0; | |
b481de9c ZY |
4703 | } |
4704 | ||
4705 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); | |
4706 | ||
4707 | static ssize_t show_statistics(struct device *d, | |
4708 | struct device_attribute *attr, char *buf) | |
4709 | { | |
4a8a4322 | 4710 | struct iwl_priv *priv = dev_get_drvdata(d); |
bb8c093b | 4711 | u32 size = sizeof(struct iwl3945_notif_statistics); |
b481de9c | 4712 | u32 len = 0, ofs = 0; |
f2c7e521 | 4713 | u8 *data = (u8 *)&priv->statistics_39; |
b481de9c ZY |
4714 | int rc = 0; |
4715 | ||
775a6e27 | 4716 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
4717 | return -EAGAIN; |
4718 | ||
4719 | mutex_lock(&priv->mutex); | |
17f841cd | 4720 | rc = iwl_send_statistics_request(priv, 0); |
b481de9c ZY |
4721 | mutex_unlock(&priv->mutex); |
4722 | ||
4723 | if (rc) { | |
4724 | len = sprintf(buf, | |
4725 | "Error sending statistics request: 0x%08X\n", rc); | |
4726 | return len; | |
4727 | } | |
4728 | ||
4729 | while (size && (PAGE_SIZE - len)) { | |
4730 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
4731 | PAGE_SIZE - len, 1); | |
4732 | len = strlen(buf); | |
4733 | if (PAGE_SIZE - len) | |
4734 | buf[len++] = '\n'; | |
4735 | ||
4736 | ofs += 16; | |
4737 | size -= min(size, 16U); | |
4738 | } | |
4739 | ||
4740 | return len; | |
4741 | } | |
4742 | ||
4743 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
4744 | ||
4745 | static ssize_t show_antenna(struct device *d, | |
4746 | struct device_attribute *attr, char *buf) | |
4747 | { | |
4a8a4322 | 4748 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c | 4749 | |
775a6e27 | 4750 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
4751 | return -EAGAIN; |
4752 | ||
7e4bca5e | 4753 | return sprintf(buf, "%d\n", iwl3945_mod_params.antenna); |
b481de9c ZY |
4754 | } |
4755 | ||
4756 | static ssize_t store_antenna(struct device *d, | |
4757 | struct device_attribute *attr, | |
4758 | const char *buf, size_t count) | |
4759 | { | |
7530f85f | 4760 | struct iwl_priv *priv __maybe_unused = dev_get_drvdata(d); |
b481de9c | 4761 | int ant; |
b481de9c ZY |
4762 | |
4763 | if (count == 0) | |
4764 | return 0; | |
4765 | ||
4766 | if (sscanf(buf, "%1i", &ant) != 1) { | |
e1623446 | 4767 | IWL_DEBUG_INFO(priv, "not in hex or decimal form.\n"); |
b481de9c ZY |
4768 | return count; |
4769 | } | |
4770 | ||
4771 | if ((ant >= 0) && (ant <= 2)) { | |
e1623446 | 4772 | IWL_DEBUG_INFO(priv, "Setting antenna select to %d.\n", ant); |
7e4bca5e | 4773 | iwl3945_mod_params.antenna = (enum iwl3945_antenna)ant; |
b481de9c | 4774 | } else |
e1623446 | 4775 | IWL_DEBUG_INFO(priv, "Bad antenna select value %d.\n", ant); |
b481de9c ZY |
4776 | |
4777 | ||
4778 | return count; | |
4779 | } | |
4780 | ||
4781 | static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna); | |
4782 | ||
4783 | static ssize_t show_status(struct device *d, | |
4784 | struct device_attribute *attr, char *buf) | |
4785 | { | |
4a8a4322 | 4786 | struct iwl_priv *priv = (struct iwl_priv *)d->driver_data; |
775a6e27 | 4787 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
4788 | return -EAGAIN; |
4789 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
4790 | } | |
4791 | ||
4792 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
4793 | ||
4794 | static ssize_t dump_error_log(struct device *d, | |
4795 | struct device_attribute *attr, | |
4796 | const char *buf, size_t count) | |
4797 | { | |
4798 | char *p = (char *)buf; | |
4799 | ||
4800 | if (p[0] == '1') | |
4a8a4322 | 4801 | iwl3945_dump_nic_error_log((struct iwl_priv *)d->driver_data); |
b481de9c ZY |
4802 | |
4803 | return strnlen(buf, count); | |
4804 | } | |
4805 | ||
4806 | static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log); | |
4807 | ||
4808 | static ssize_t dump_event_log(struct device *d, | |
4809 | struct device_attribute *attr, | |
4810 | const char *buf, size_t count) | |
4811 | { | |
4812 | char *p = (char *)buf; | |
4813 | ||
4814 | if (p[0] == '1') | |
4a8a4322 | 4815 | iwl3945_dump_nic_event_log((struct iwl_priv *)d->driver_data); |
b481de9c ZY |
4816 | |
4817 | return strnlen(buf, count); | |
4818 | } | |
4819 | ||
4820 | static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log); | |
4821 | ||
4822 | /***************************************************************************** | |
4823 | * | |
a96a27f9 | 4824 | * driver setup and tear down |
b481de9c ZY |
4825 | * |
4826 | *****************************************************************************/ | |
4827 | ||
4a8a4322 | 4828 | static void iwl3945_setup_deferred_work(struct iwl_priv *priv) |
b481de9c | 4829 | { |
d21050c7 | 4830 | priv->workqueue = create_singlethread_workqueue(DRV_NAME); |
b481de9c ZY |
4831 | |
4832 | init_waitqueue_head(&priv->wait_command_queue); | |
4833 | ||
bb8c093b CH |
4834 | INIT_WORK(&priv->up, iwl3945_bg_up); |
4835 | INIT_WORK(&priv->restart, iwl3945_bg_restart); | |
4836 | INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish); | |
c0af96a6 | 4837 | INIT_WORK(&priv->rf_kill, iwl_bg_rf_kill); |
bb8c093b | 4838 | INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update); |
bb8c093b CH |
4839 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start); |
4840 | INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start); | |
2663516d | 4841 | INIT_DELAYED_WORK(&priv->rfkill_poll, iwl3945_rfkill_poll); |
77fecfb8 SO |
4842 | INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed); |
4843 | INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan); | |
4844 | INIT_WORK(&priv->abort_scan, iwl_bg_abort_scan); | |
4845 | INIT_DELAYED_WORK(&priv->scan_check, iwl_bg_scan_check); | |
bb8c093b CH |
4846 | |
4847 | iwl3945_hw_setup_deferred_work(priv); | |
b481de9c ZY |
4848 | |
4849 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
bb8c093b | 4850 | iwl3945_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
4851 | } |
4852 | ||
4a8a4322 | 4853 | static void iwl3945_cancel_deferred_work(struct iwl_priv *priv) |
b481de9c | 4854 | { |
bb8c093b | 4855 | iwl3945_hw_cancel_deferred_work(priv); |
b481de9c | 4856 | |
e47eb6ad | 4857 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c ZY |
4858 | cancel_delayed_work(&priv->scan_check); |
4859 | cancel_delayed_work(&priv->alive_start); | |
b481de9c ZY |
4860 | cancel_work_sync(&priv->beacon_update); |
4861 | } | |
4862 | ||
bb8c093b | 4863 | static struct attribute *iwl3945_sysfs_entries[] = { |
b481de9c ZY |
4864 | &dev_attr_antenna.attr, |
4865 | &dev_attr_channels.attr, | |
4866 | &dev_attr_dump_errors.attr, | |
4867 | &dev_attr_dump_events.attr, | |
4868 | &dev_attr_flags.attr, | |
4869 | &dev_attr_filter_flags.attr, | |
c8b0e6e1 | 4870 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
4871 | &dev_attr_measurement.attr, |
4872 | #endif | |
4873 | &dev_attr_power_level.attr, | |
b481de9c | 4874 | &dev_attr_retry_rate.attr, |
b481de9c ZY |
4875 | &dev_attr_statistics.attr, |
4876 | &dev_attr_status.attr, | |
4877 | &dev_attr_temperature.attr, | |
b481de9c | 4878 | &dev_attr_tx_power.attr, |
d08853a3 | 4879 | #ifdef CONFIG_IWLWIFI_DEBUG |
40b8ec0b SO |
4880 | &dev_attr_debug_level.attr, |
4881 | #endif | |
b481de9c ZY |
4882 | NULL |
4883 | }; | |
4884 | ||
bb8c093b | 4885 | static struct attribute_group iwl3945_attribute_group = { |
b481de9c | 4886 | .name = NULL, /* put in device directory */ |
bb8c093b | 4887 | .attrs = iwl3945_sysfs_entries, |
b481de9c ZY |
4888 | }; |
4889 | ||
bb8c093b CH |
4890 | static struct ieee80211_ops iwl3945_hw_ops = { |
4891 | .tx = iwl3945_mac_tx, | |
4892 | .start = iwl3945_mac_start, | |
4893 | .stop = iwl3945_mac_stop, | |
4894 | .add_interface = iwl3945_mac_add_interface, | |
4895 | .remove_interface = iwl3945_mac_remove_interface, | |
4896 | .config = iwl3945_mac_config, | |
4897 | .config_interface = iwl3945_mac_config_interface, | |
8ccde88a | 4898 | .configure_filter = iwl_configure_filter, |
bb8c093b | 4899 | .set_key = iwl3945_mac_set_key, |
bb8c093b CH |
4900 | .get_tx_stats = iwl3945_mac_get_tx_stats, |
4901 | .conf_tx = iwl3945_mac_conf_tx, | |
bb8c093b | 4902 | .reset_tsf = iwl3945_mac_reset_tsf, |
cd56d331 | 4903 | .bss_info_changed = iwl3945_bss_info_changed, |
e9dde6f6 | 4904 | .hw_scan = iwl_mac_hw_scan |
b481de9c ZY |
4905 | }; |
4906 | ||
e52119c5 | 4907 | static int iwl3945_init_drv(struct iwl_priv *priv) |
90a30a02 KA |
4908 | { |
4909 | int ret; | |
e6148917 | 4910 | struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; |
90a30a02 KA |
4911 | |
4912 | priv->retry_rate = 1; | |
4913 | priv->ibss_beacon = NULL; | |
4914 | ||
4915 | spin_lock_init(&priv->lock); | |
3dae0c42 | 4916 | spin_lock_init(&priv->power_data.lock); |
90a30a02 KA |
4917 | spin_lock_init(&priv->sta_lock); |
4918 | spin_lock_init(&priv->hcmd_lock); | |
4919 | ||
4920 | INIT_LIST_HEAD(&priv->free_frames); | |
4921 | ||
4922 | mutex_init(&priv->mutex); | |
4923 | ||
4924 | /* Clear the driver's (not device's) station table */ | |
4925 | iwl3945_clear_stations_table(priv); | |
4926 | ||
4927 | priv->data_retry_limit = -1; | |
4928 | priv->ieee_channels = NULL; | |
4929 | priv->ieee_rates = NULL; | |
4930 | priv->band = IEEE80211_BAND_2GHZ; | |
4931 | ||
4932 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
4933 | ||
4934 | iwl_reset_qos(priv); | |
4935 | ||
4936 | priv->qos_data.qos_active = 0; | |
4937 | priv->qos_data.qos_cap.val = 0; | |
4938 | ||
4939 | priv->rates_mask = IWL_RATES_MASK; | |
d25aabb0 WT |
4940 | /* If power management is turned on, default to CAM mode */ |
4941 | priv->power_mode = IWL_POWER_MODE_CAM; | |
62ea9c5b | 4942 | priv->tx_power_user_lmt = IWL_DEFAULT_TX_POWER; |
90a30a02 | 4943 | |
e6148917 SO |
4944 | if (eeprom->version < EEPROM_3945_EEPROM_VERSION) { |
4945 | IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n", | |
4946 | eeprom->version); | |
4947 | ret = -EINVAL; | |
4948 | goto err; | |
4949 | } | |
4950 | ret = iwl_init_channel_map(priv); | |
90a30a02 KA |
4951 | if (ret) { |
4952 | IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); | |
4953 | goto err; | |
4954 | } | |
4955 | ||
e6148917 SO |
4956 | /* Set up txpower settings in driver for all channels */ |
4957 | if (iwl3945_txpower_set_from_eeprom(priv)) { | |
4958 | ret = -EIO; | |
4959 | goto err_free_channel_map; | |
4960 | } | |
4961 | ||
534166de | 4962 | ret = iwlcore_init_geos(priv); |
90a30a02 KA |
4963 | if (ret) { |
4964 | IWL_ERR(priv, "initializing geos failed: %d\n", ret); | |
4965 | goto err_free_channel_map; | |
4966 | } | |
534166de SO |
4967 | iwl3945_init_hw_rates(priv, priv->ieee_rates); |
4968 | ||
2a4ddaab AK |
4969 | return 0; |
4970 | ||
4971 | err_free_channel_map: | |
4972 | iwl_free_channel_map(priv); | |
4973 | err: | |
4974 | return ret; | |
4975 | } | |
4976 | ||
4977 | static int iwl3945_setup_mac(struct iwl_priv *priv) | |
4978 | { | |
4979 | int ret; | |
4980 | struct ieee80211_hw *hw = priv->hw; | |
4981 | ||
4982 | hw->rate_control_algorithm = "iwl-3945-rs"; | |
4983 | hw->sta_data_size = sizeof(struct iwl3945_sta_priv); | |
4984 | ||
4985 | /* Tell mac80211 our characteristics */ | |
4986 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
4987 | IEEE80211_HW_NOISE_DBM; | |
4988 | ||
4989 | hw->wiphy->interface_modes = | |
4990 | BIT(NL80211_IFTYPE_STATION) | | |
4991 | BIT(NL80211_IFTYPE_ADHOC); | |
4992 | ||
4993 | hw->wiphy->custom_regulatory = true; | |
4994 | ||
4995 | /* Default value; 4 EDCA QOS priorities */ | |
4996 | hw->queues = 4; | |
4997 | ||
4998 | hw->conf.beacon_int = 100; | |
4999 | ||
534166de SO |
5000 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) |
5001 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
5002 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
2a4ddaab | 5003 | |
534166de SO |
5004 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) |
5005 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
5006 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
90a30a02 | 5007 | |
2a4ddaab AK |
5008 | ret = ieee80211_register_hw(priv->hw); |
5009 | if (ret) { | |
5010 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
5011 | return ret; | |
5012 | } | |
5013 | priv->mac80211_registered = 1; | |
90a30a02 | 5014 | |
2a4ddaab | 5015 | return 0; |
90a30a02 KA |
5016 | } |
5017 | ||
bb8c093b | 5018 | static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
5019 | { |
5020 | int err = 0; | |
4a8a4322 | 5021 | struct iwl_priv *priv; |
b481de9c | 5022 | struct ieee80211_hw *hw; |
c0f20d91 | 5023 | struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); |
e6148917 | 5024 | struct iwl3945_eeprom *eeprom; |
0359facc | 5025 | unsigned long flags; |
b481de9c | 5026 | |
cee53ddb KA |
5027 | /*********************** |
5028 | * 1. Allocating HW data | |
5029 | * ********************/ | |
5030 | ||
b481de9c ZY |
5031 | /* mac80211 allocates memory for this device instance, including |
5032 | * space for this driver's private structure */ | |
90a30a02 | 5033 | hw = iwl_alloc_all(cfg, &iwl3945_hw_ops); |
b481de9c | 5034 | if (hw == NULL) { |
a3139c59 | 5035 | printk(KERN_ERR DRV_NAME "Can not allocate network device\n"); |
b481de9c ZY |
5036 | err = -ENOMEM; |
5037 | goto out; | |
5038 | } | |
b481de9c | 5039 | priv = hw->priv; |
90a30a02 | 5040 | SET_IEEE80211_DEV(hw, &pdev->dev); |
6440adb5 | 5041 | |
df878d8f KA |
5042 | if ((iwl3945_mod_params.num_of_queues > IWL39_MAX_NUM_QUEUES) || |
5043 | (iwl3945_mod_params.num_of_queues < IWL_MIN_NUM_QUEUES)) { | |
15b1687c WT |
5044 | IWL_ERR(priv, |
5045 | "invalid queues_num, should be between %d and %d\n", | |
5046 | IWL_MIN_NUM_QUEUES, IWL39_MAX_NUM_QUEUES); | |
a3139c59 | 5047 | err = -EINVAL; |
c8f16138 | 5048 | goto out_ieee80211_free_hw; |
a3139c59 SO |
5049 | } |
5050 | ||
90a30a02 KA |
5051 | /* |
5052 | * Disabling hardware scan means that mac80211 will perform scans | |
5053 | * "the hard way", rather than using device's scan. | |
5054 | */ | |
df878d8f | 5055 | if (iwl3945_mod_params.disable_hw_scan) { |
e1623446 | 5056 | IWL_DEBUG_INFO(priv, "Disabling hw_scan\n"); |
40b8ec0b SO |
5057 | iwl3945_hw_ops.hw_scan = NULL; |
5058 | } | |
5059 | ||
90a30a02 | 5060 | |
e1623446 | 5061 | IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); |
90a30a02 KA |
5062 | priv->cfg = cfg; |
5063 | priv->pci_dev = pdev; | |
cee53ddb | 5064 | |
d08853a3 | 5065 | #ifdef CONFIG_IWLWIFI_DEBUG |
df878d8f | 5066 | priv->debug_level = iwl3945_mod_params.debug; |
b481de9c ZY |
5067 | atomic_set(&priv->restrict_refcnt, 0); |
5068 | #endif | |
b481de9c | 5069 | |
cee53ddb KA |
5070 | /*************************** |
5071 | * 2. Initializing PCI bus | |
5072 | * *************************/ | |
b481de9c ZY |
5073 | if (pci_enable_device(pdev)) { |
5074 | err = -ENODEV; | |
5075 | goto out_ieee80211_free_hw; | |
5076 | } | |
5077 | ||
5078 | pci_set_master(pdev); | |
5079 | ||
b481de9c ZY |
5080 | err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); |
5081 | if (!err) | |
5082 | err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
5083 | if (err) { | |
978785a3 | 5084 | IWL_WARN(priv, "No suitable DMA available.\n"); |
b481de9c ZY |
5085 | goto out_pci_disable_device; |
5086 | } | |
5087 | ||
5088 | pci_set_drvdata(pdev, priv); | |
5089 | err = pci_request_regions(pdev, DRV_NAME); | |
5090 | if (err) | |
5091 | goto out_pci_disable_device; | |
6440adb5 | 5092 | |
cee53ddb KA |
5093 | /*********************** |
5094 | * 3. Read REV Register | |
5095 | * ********************/ | |
b481de9c ZY |
5096 | priv->hw_base = pci_iomap(pdev, 0, 0); |
5097 | if (!priv->hw_base) { | |
5098 | err = -ENODEV; | |
5099 | goto out_pci_release_regions; | |
5100 | } | |
5101 | ||
e1623446 | 5102 | IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n", |
b481de9c | 5103 | (unsigned long long) pci_resource_len(pdev, 0)); |
e1623446 | 5104 | IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base); |
b481de9c | 5105 | |
cee53ddb KA |
5106 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
5107 | * PCI Tx retries from interfering with C3 CPU state */ | |
5108 | pci_write_config_byte(pdev, 0x41, 0x00); | |
b481de9c | 5109 | |
90a30a02 KA |
5110 | /* amp init */ |
5111 | err = priv->cfg->ops->lib->apm_ops.init(priv); | |
cee53ddb | 5112 | if (err < 0) { |
d5df2a16 | 5113 | IWL_DEBUG_INFO(priv, "Failed to init the card\n"); |
90a30a02 | 5114 | goto out_iounmap; |
cee53ddb | 5115 | } |
b481de9c | 5116 | |
cee53ddb KA |
5117 | /*********************** |
5118 | * 4. Read EEPROM | |
5119 | * ********************/ | |
90a30a02 | 5120 | |
cee53ddb | 5121 | /* Read the EEPROM */ |
e6148917 | 5122 | err = iwl_eeprom_init(priv); |
cee53ddb | 5123 | if (err) { |
15b1687c | 5124 | IWL_ERR(priv, "Unable to init EEPROM\n"); |
c8f16138 | 5125 | goto out_iounmap; |
cee53ddb KA |
5126 | } |
5127 | /* MAC Address location in EEPROM same for 3945/4965 */ | |
e6148917 SO |
5128 | eeprom = (struct iwl3945_eeprom *)priv->eeprom; |
5129 | memcpy(priv->mac_addr, eeprom->mac_address, ETH_ALEN); | |
e1623446 | 5130 | IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->mac_addr); |
cee53ddb | 5131 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); |
b481de9c | 5132 | |
cee53ddb KA |
5133 | /*********************** |
5134 | * 5. Setup HW Constants | |
5135 | * ********************/ | |
b481de9c | 5136 | /* Device-specific setup */ |
3832ec9d | 5137 | if (iwl3945_hw_set_hw_params(priv)) { |
15b1687c | 5138 | IWL_ERR(priv, "failed to set hw settings\n"); |
c8f16138 | 5139 | goto out_eeprom_free; |
b481de9c ZY |
5140 | } |
5141 | ||
cee53ddb KA |
5142 | /*********************** |
5143 | * 6. Setup priv | |
5144 | * ********************/ | |
cee53ddb | 5145 | |
90a30a02 | 5146 | err = iwl3945_init_drv(priv); |
b481de9c | 5147 | if (err) { |
90a30a02 | 5148 | IWL_ERR(priv, "initializing driver failed\n"); |
c8f16138 | 5149 | goto out_unset_hw_params; |
b481de9c ZY |
5150 | } |
5151 | ||
978785a3 TW |
5152 | IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s\n", |
5153 | priv->cfg->name); | |
cee53ddb KA |
5154 | |
5155 | /*********************************** | |
5156 | * 7. Initialize Module Parameters | |
5157 | * **********************************/ | |
5158 | ||
5159 | /* Initialize module parameter values here */ | |
5160 | /* Disable radio (SW RF KILL) via parameter when loading driver */ | |
df878d8f | 5161 | if (iwl3945_mod_params.disable) { |
cee53ddb | 5162 | set_bit(STATUS_RF_KILL_SW, &priv->status); |
e1623446 | 5163 | IWL_DEBUG_INFO(priv, "Radio disabled.\n"); |
849e0dce RC |
5164 | } |
5165 | ||
cee53ddb KA |
5166 | |
5167 | /*********************** | |
5168 | * 8. Setup Services | |
5169 | * ********************/ | |
5170 | ||
5171 | spin_lock_irqsave(&priv->lock, flags); | |
ed3b932e | 5172 | iwl_disable_interrupts(priv); |
cee53ddb KA |
5173 | spin_unlock_irqrestore(&priv->lock, flags); |
5174 | ||
2663516d HS |
5175 | pci_enable_msi(priv->pci_dev); |
5176 | ||
f17d08a6 | 5177 | err = request_irq(priv->pci_dev->irq, iwl_isr, IRQF_SHARED, |
2663516d HS |
5178 | DRV_NAME, priv); |
5179 | if (err) { | |
5180 | IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq); | |
5181 | goto out_disable_msi; | |
5182 | } | |
5183 | ||
cee53ddb | 5184 | err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
849e0dce | 5185 | if (err) { |
15b1687c | 5186 | IWL_ERR(priv, "failed to create sysfs device attributes\n"); |
90a30a02 | 5187 | goto out_release_irq; |
849e0dce | 5188 | } |
849e0dce | 5189 | |
8ccde88a SO |
5190 | iwl_set_rxon_channel(priv, |
5191 | &priv->bands[IEEE80211_BAND_2GHZ].channels[5]); | |
cee53ddb KA |
5192 | iwl3945_setup_deferred_work(priv); |
5193 | iwl3945_setup_rx_handlers(priv); | |
5194 | ||
cee53ddb | 5195 | /********************************* |
2663516d | 5196 | * 9. Setup and Register mac80211 |
cee53ddb KA |
5197 | * *******************************/ |
5198 | ||
2a4ddaab | 5199 | iwl_enable_interrupts(priv); |
b481de9c | 5200 | |
2a4ddaab AK |
5201 | err = iwl3945_setup_mac(priv); |
5202 | if (err) | |
5203 | goto out_remove_sysfs; | |
cee53ddb | 5204 | |
c0af96a6 | 5205 | err = iwl_rfkill_init(priv); |
ebef2008 | 5206 | if (err) |
15b1687c | 5207 | IWL_ERR(priv, "Unable to initialize RFKILL system. " |
ebef2008 | 5208 | "Ignoring error: %d\n", err); |
2a4ddaab AK |
5209 | else |
5210 | iwl_rfkill_set_hw_state(priv); | |
ebef2008 | 5211 | |
2663516d HS |
5212 | /* Start monitoring the killswitch */ |
5213 | queue_delayed_work(priv->workqueue, &priv->rfkill_poll, | |
5214 | 2 * HZ); | |
5215 | ||
b481de9c ZY |
5216 | return 0; |
5217 | ||
cee53ddb | 5218 | out_remove_sysfs: |
c8f16138 RC |
5219 | destroy_workqueue(priv->workqueue); |
5220 | priv->workqueue = NULL; | |
cee53ddb | 5221 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c | 5222 | out_release_irq: |
2663516d | 5223 | free_irq(priv->pci_dev->irq, priv); |
2663516d HS |
5224 | out_disable_msi: |
5225 | pci_disable_msi(priv->pci_dev); | |
c8f16138 RC |
5226 | iwlcore_free_geos(priv); |
5227 | iwl_free_channel_map(priv); | |
5228 | out_unset_hw_params: | |
5229 | iwl3945_unset_hw_params(priv); | |
5230 | out_eeprom_free: | |
5231 | iwl_eeprom_free(priv); | |
b481de9c ZY |
5232 | out_iounmap: |
5233 | pci_iounmap(pdev, priv->hw_base); | |
5234 | out_pci_release_regions: | |
5235 | pci_release_regions(pdev); | |
5236 | out_pci_disable_device: | |
b481de9c | 5237 | pci_set_drvdata(pdev, NULL); |
623d563e | 5238 | pci_disable_device(pdev); |
b481de9c ZY |
5239 | out_ieee80211_free_hw: |
5240 | ieee80211_free_hw(priv->hw); | |
5241 | out: | |
5242 | return err; | |
5243 | } | |
5244 | ||
c83dbf68 | 5245 | static void __devexit iwl3945_pci_remove(struct pci_dev *pdev) |
b481de9c | 5246 | { |
4a8a4322 | 5247 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
0359facc | 5248 | unsigned long flags; |
b481de9c ZY |
5249 | |
5250 | if (!priv) | |
5251 | return; | |
5252 | ||
e1623446 | 5253 | IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); |
b481de9c | 5254 | |
b481de9c | 5255 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
b24d22b1 | 5256 | |
d552bfb6 KA |
5257 | if (priv->mac80211_registered) { |
5258 | ieee80211_unregister_hw(priv->hw); | |
5259 | priv->mac80211_registered = 0; | |
5260 | } else { | |
5261 | iwl3945_down(priv); | |
5262 | } | |
b481de9c | 5263 | |
0359facc MA |
5264 | /* make sure we flush any pending irq or |
5265 | * tasklet for the driver | |
5266 | */ | |
5267 | spin_lock_irqsave(&priv->lock, flags); | |
ed3b932e | 5268 | iwl_disable_interrupts(priv); |
0359facc MA |
5269 | spin_unlock_irqrestore(&priv->lock, flags); |
5270 | ||
5271 | iwl_synchronize_irq(priv); | |
5272 | ||
bb8c093b | 5273 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c | 5274 | |
c0af96a6 | 5275 | iwl_rfkill_unregister(priv); |
2663516d HS |
5276 | cancel_delayed_work(&priv->rfkill_poll); |
5277 | ||
bb8c093b | 5278 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
5279 | |
5280 | if (priv->rxq.bd) | |
51af3d3f | 5281 | iwl_rx_queue_free(priv, &priv->rxq); |
bb8c093b | 5282 | iwl3945_hw_txq_ctx_free(priv); |
b481de9c | 5283 | |
3832ec9d | 5284 | iwl3945_unset_hw_params(priv); |
bb8c093b | 5285 | iwl3945_clear_stations_table(priv); |
b481de9c | 5286 | |
6ef89d0a MA |
5287 | /*netif_stop_queue(dev); */ |
5288 | flush_workqueue(priv->workqueue); | |
5289 | ||
bb8c093b | 5290 | /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes |
b481de9c ZY |
5291 | * priv->workqueue... so we can't take down the workqueue |
5292 | * until now... */ | |
5293 | destroy_workqueue(priv->workqueue); | |
5294 | priv->workqueue = NULL; | |
5295 | ||
2663516d HS |
5296 | free_irq(pdev->irq, priv); |
5297 | pci_disable_msi(pdev); | |
5298 | ||
b481de9c ZY |
5299 | pci_iounmap(pdev, priv->hw_base); |
5300 | pci_release_regions(pdev); | |
5301 | pci_disable_device(pdev); | |
5302 | pci_set_drvdata(pdev, NULL); | |
5303 | ||
e6148917 | 5304 | iwl_free_channel_map(priv); |
534166de | 5305 | iwlcore_free_geos(priv); |
805cee5b | 5306 | kfree(priv->scan); |
b481de9c ZY |
5307 | if (priv->ibss_beacon) |
5308 | dev_kfree_skb(priv->ibss_beacon); | |
5309 | ||
5310 | ieee80211_free_hw(priv->hw); | |
5311 | } | |
5312 | ||
5313 | #ifdef CONFIG_PM | |
5314 | ||
bb8c093b | 5315 | static int iwl3945_pci_suspend(struct pci_dev *pdev, pm_message_t state) |
b481de9c | 5316 | { |
4a8a4322 | 5317 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
b481de9c | 5318 | |
e655b9f0 ZY |
5319 | if (priv->is_open) { |
5320 | set_bit(STATUS_IN_SUSPEND, &priv->status); | |
5321 | iwl3945_mac_stop(priv->hw); | |
5322 | priv->is_open = 1; | |
5323 | } | |
2663516d HS |
5324 | pci_save_state(pdev); |
5325 | pci_disable_device(pdev); | |
b481de9c ZY |
5326 | pci_set_power_state(pdev, PCI_D3hot); |
5327 | ||
b481de9c ZY |
5328 | return 0; |
5329 | } | |
5330 | ||
bb8c093b | 5331 | static int iwl3945_pci_resume(struct pci_dev *pdev) |
b481de9c | 5332 | { |
4a8a4322 | 5333 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
450154e4 | 5334 | int ret; |
b481de9c | 5335 | |
b481de9c | 5336 | pci_set_power_state(pdev, PCI_D0); |
450154e4 WT |
5337 | ret = pci_enable_device(pdev); |
5338 | if (ret) | |
5339 | return ret; | |
2663516d | 5340 | pci_restore_state(pdev); |
b481de9c | 5341 | |
e655b9f0 ZY |
5342 | if (priv->is_open) |
5343 | iwl3945_mac_start(priv->hw); | |
b481de9c | 5344 | |
e655b9f0 | 5345 | clear_bit(STATUS_IN_SUSPEND, &priv->status); |
b481de9c ZY |
5346 | return 0; |
5347 | } | |
5348 | ||
5349 | #endif /* CONFIG_PM */ | |
5350 | ||
5351 | /***************************************************************************** | |
5352 | * | |
5353 | * driver and module entry point | |
5354 | * | |
5355 | *****************************************************************************/ | |
5356 | ||
bb8c093b | 5357 | static struct pci_driver iwl3945_driver = { |
b481de9c | 5358 | .name = DRV_NAME, |
bb8c093b CH |
5359 | .id_table = iwl3945_hw_card_ids, |
5360 | .probe = iwl3945_pci_probe, | |
5361 | .remove = __devexit_p(iwl3945_pci_remove), | |
b481de9c | 5362 | #ifdef CONFIG_PM |
bb8c093b CH |
5363 | .suspend = iwl3945_pci_suspend, |
5364 | .resume = iwl3945_pci_resume, | |
b481de9c ZY |
5365 | #endif |
5366 | }; | |
5367 | ||
bb8c093b | 5368 | static int __init iwl3945_init(void) |
b481de9c ZY |
5369 | { |
5370 | ||
5371 | int ret; | |
5372 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
5373 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 RC |
5374 | |
5375 | ret = iwl3945_rate_control_register(); | |
5376 | if (ret) { | |
a3139c59 SO |
5377 | printk(KERN_ERR DRV_NAME |
5378 | "Unable to register rate control algorithm: %d\n", ret); | |
897e1cf2 RC |
5379 | return ret; |
5380 | } | |
5381 | ||
bb8c093b | 5382 | ret = pci_register_driver(&iwl3945_driver); |
b481de9c | 5383 | if (ret) { |
a3139c59 | 5384 | printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n"); |
897e1cf2 | 5385 | goto error_register; |
b481de9c | 5386 | } |
b481de9c ZY |
5387 | |
5388 | return ret; | |
897e1cf2 | 5389 | |
897e1cf2 RC |
5390 | error_register: |
5391 | iwl3945_rate_control_unregister(); | |
5392 | return ret; | |
b481de9c ZY |
5393 | } |
5394 | ||
bb8c093b | 5395 | static void __exit iwl3945_exit(void) |
b481de9c | 5396 | { |
bb8c093b | 5397 | pci_unregister_driver(&iwl3945_driver); |
897e1cf2 | 5398 | iwl3945_rate_control_unregister(); |
b481de9c ZY |
5399 | } |
5400 | ||
a0987a8d | 5401 | MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX)); |
25cb6cad | 5402 | |
df878d8f | 5403 | module_param_named(antenna, iwl3945_mod_params.antenna, int, 0444); |
b481de9c | 5404 | MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); |
df878d8f | 5405 | module_param_named(disable, iwl3945_mod_params.disable, int, 0444); |
b481de9c | 5406 | MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])"); |
9c74d9fb SO |
5407 | module_param_named(swcrypto, iwl3945_mod_params.sw_crypto, int, 0444); |
5408 | MODULE_PARM_DESC(swcrypto, | |
5409 | "using software crypto (default 1 [software])\n"); | |
df878d8f | 5410 | module_param_named(debug, iwl3945_mod_params.debug, uint, 0444); |
b481de9c | 5411 | MODULE_PARM_DESC(debug, "debug output mask"); |
df878d8f | 5412 | module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, int, 0444); |
b481de9c ZY |
5413 | MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)"); |
5414 | ||
df878d8f | 5415 | module_param_named(queues_num, iwl3945_mod_params.num_of_queues, int, 0444); |
b481de9c ZY |
5416 | MODULE_PARM_DESC(queues_num, "number of hw queues."); |
5417 | ||
af48d048 SO |
5418 | module_param_named(fw_restart3945, iwl3945_mod_params.restart_fw, int, 0444); |
5419 | MODULE_PARM_DESC(fw_restart3945, "restart firmware in case of error"); | |
5420 | ||
bb8c093b CH |
5421 | module_exit(iwl3945_exit); |
5422 | module_init(iwl3945_init); |