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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
1f447808 | 3 | * Copyright(c) 2003 - 2010 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> | |
d43c36dc | 36 | #include <linux/sched.h> |
b481de9c ZY |
37 | #include <linux/skbuff.h> |
38 | #include <linux/netdevice.h> | |
39 | #include <linux/wireless.h> | |
40 | #include <linux/firmware.h> | |
b481de9c ZY |
41 | #include <linux/etherdevice.h> |
42 | #include <linux/if_arp.h> | |
43 | ||
44 | #include <net/ieee80211_radiotap.h> | |
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" |
81963d68 | 59 | #include "iwl-spectrum.h" |
b481de9c | 60 | |
b481de9c ZY |
61 | /* |
62 | * module name, copyright, version, etc. | |
b481de9c ZY |
63 | */ |
64 | ||
65 | #define DRV_DESCRIPTION \ | |
66 | "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" | |
67 | ||
d08853a3 | 68 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
69 | #define VD "d" |
70 | #else | |
71 | #define VD | |
72 | #endif | |
73 | ||
81963d68 RC |
74 | /* |
75 | * add "s" to indicate spectrum measurement included. | |
76 | * we add it here to be consistent with previous releases in which | |
77 | * this was configurable. | |
78 | */ | |
79 | #define DRV_VERSION IWLWIFI_VERSION VD "s" | |
1f447808 | 80 | #define DRV_COPYRIGHT "Copyright(c) 2003-2010 Intel Corporation" |
a7b75207 | 81 | #define DRV_AUTHOR "<ilw@linux.intel.com>" |
b481de9c ZY |
82 | |
83 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
84 | MODULE_VERSION(DRV_VERSION); | |
a7b75207 | 85 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
b481de9c ZY |
86 | MODULE_LICENSE("GPL"); |
87 | ||
df878d8f KA |
88 | /* module parameters */ |
89 | struct iwl_mod_params iwl3945_mod_params = { | |
9c74d9fb | 90 | .sw_crypto = 1, |
af48d048 | 91 | .restart_fw = 1, |
df878d8f KA |
92 | /* the rest are 0 by default */ |
93 | }; | |
94 | ||
7e4bca5e SO |
95 | /** |
96 | * iwl3945_get_antenna_flags - Get antenna flags for RXON command | |
97 | * @priv: eeprom and antenna fields are used to determine antenna flags | |
98 | * | |
99 | * priv->eeprom39 is used to determine if antenna AUX/MAIN are reversed | |
100 | * iwl3945_mod_params.antenna specifies the antenna diversity mode: | |
101 | * | |
102 | * IWL_ANTENNA_DIVERSITY - NIC selects best antenna by itself | |
103 | * IWL_ANTENNA_MAIN - Force MAIN antenna | |
104 | * IWL_ANTENNA_AUX - Force AUX antenna | |
105 | */ | |
106 | __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv) | |
107 | { | |
108 | struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; | |
109 | ||
110 | switch (iwl3945_mod_params.antenna) { | |
111 | case IWL_ANTENNA_DIVERSITY: | |
112 | return 0; | |
113 | ||
114 | case IWL_ANTENNA_MAIN: | |
115 | if (eeprom->antenna_switch_type) | |
116 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; | |
117 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; | |
118 | ||
119 | case IWL_ANTENNA_AUX: | |
120 | if (eeprom->antenna_switch_type) | |
121 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; | |
122 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; | |
123 | } | |
124 | ||
125 | /* bad antenna selector value */ | |
126 | IWL_ERR(priv, "Bad antenna selector value (0x%x)\n", | |
127 | iwl3945_mod_params.antenna); | |
128 | ||
129 | return 0; /* "diversity" is default if error */ | |
130 | } | |
131 | ||
6e21f15c | 132 | static int iwl3945_set_ccmp_dynamic_key_info(struct iwl_priv *priv, |
b481de9c ZY |
133 | struct ieee80211_key_conf *keyconf, |
134 | u8 sta_id) | |
135 | { | |
136 | unsigned long flags; | |
137 | __le16 key_flags = 0; | |
6e21f15c AK |
138 | int ret; |
139 | ||
140 | key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); | |
141 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
142 | ||
143 | if (sta_id == priv->hw_params.bcast_sta_id) | |
144 | key_flags |= STA_KEY_MULTICAST_MSK; | |
145 | ||
146 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
147 | keyconf->hw_key_idx = keyconf->keyidx; | |
148 | key_flags &= ~STA_KEY_FLG_INVALID; | |
b481de9c | 149 | |
b481de9c | 150 | spin_lock_irqsave(&priv->sta_lock, flags); |
c587de0b TW |
151 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; |
152 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; | |
153 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, | |
b481de9c ZY |
154 | keyconf->keylen); |
155 | ||
c587de0b | 156 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, |
b481de9c | 157 | keyconf->keylen); |
6e21f15c | 158 | |
c587de0b | 159 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
6e21f15c | 160 | == STA_KEY_FLG_NO_ENC) |
c587de0b | 161 | priv->stations[sta_id].sta.key.key_offset = |
6e21f15c AK |
162 | iwl_get_free_ucode_key_index(priv); |
163 | /* else, we are overriding an existing key => no need to allocated room | |
164 | * in uCode. */ | |
165 | ||
c587de0b | 166 | WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, |
6e21f15c AK |
167 | "no space for a new key"); |
168 | ||
c587de0b TW |
169 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
170 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
171 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
b481de9c | 172 | |
6e21f15c AK |
173 | IWL_DEBUG_INFO(priv, "hwcrypto: modify ucode station key info\n"); |
174 | ||
c587de0b | 175 | ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
6e21f15c | 176 | |
b481de9c ZY |
177 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
178 | ||
6e21f15c AK |
179 | return ret; |
180 | } | |
181 | ||
182 | static int iwl3945_set_tkip_dynamic_key_info(struct iwl_priv *priv, | |
183 | struct ieee80211_key_conf *keyconf, | |
184 | u8 sta_id) | |
185 | { | |
186 | return -EOPNOTSUPP; | |
187 | } | |
188 | ||
189 | static int iwl3945_set_wep_dynamic_key_info(struct iwl_priv *priv, | |
190 | struct ieee80211_key_conf *keyconf, | |
191 | u8 sta_id) | |
192 | { | |
193 | return -EOPNOTSUPP; | |
b481de9c ZY |
194 | } |
195 | ||
4a8a4322 | 196 | static int iwl3945_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id) |
b481de9c ZY |
197 | { |
198 | unsigned long flags; | |
199 | ||
200 | spin_lock_irqsave(&priv->sta_lock, flags); | |
c587de0b TW |
201 | memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl_hw_key)); |
202 | memset(&priv->stations[sta_id].sta.key, 0, | |
4c897253 | 203 | sizeof(struct iwl4965_keyinfo)); |
c587de0b TW |
204 | priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC; |
205 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
206 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
b481de9c ZY |
207 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
208 | ||
e1623446 | 209 | IWL_DEBUG_INFO(priv, "hwcrypto: clear ucode station key info\n"); |
c587de0b | 210 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, 0); |
b481de9c ZY |
211 | return 0; |
212 | } | |
213 | ||
fa11d525 | 214 | static int iwl3945_set_dynamic_key(struct iwl_priv *priv, |
6e21f15c AK |
215 | struct ieee80211_key_conf *keyconf, u8 sta_id) |
216 | { | |
217 | int ret = 0; | |
218 | ||
219 | keyconf->hw_key_idx = HW_KEY_DYNAMIC; | |
220 | ||
221 | switch (keyconf->alg) { | |
222 | case ALG_CCMP: | |
223 | ret = iwl3945_set_ccmp_dynamic_key_info(priv, keyconf, sta_id); | |
224 | break; | |
225 | case ALG_TKIP: | |
226 | ret = iwl3945_set_tkip_dynamic_key_info(priv, keyconf, sta_id); | |
227 | break; | |
228 | case ALG_WEP: | |
229 | ret = iwl3945_set_wep_dynamic_key_info(priv, keyconf, sta_id); | |
230 | break; | |
231 | default: | |
1e680233 | 232 | IWL_ERR(priv, "Unknown alg: %s alg = %d\n", __func__, keyconf->alg); |
6e21f15c AK |
233 | ret = -EINVAL; |
234 | } | |
235 | ||
236 | IWL_DEBUG_WEP(priv, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n", | |
237 | keyconf->alg, keyconf->keylen, keyconf->keyidx, | |
238 | sta_id, ret); | |
239 | ||
240 | return ret; | |
241 | } | |
242 | ||
243 | static int iwl3945_remove_static_key(struct iwl_priv *priv) | |
244 | { | |
245 | int ret = -EOPNOTSUPP; | |
246 | ||
247 | return ret; | |
248 | } | |
249 | ||
250 | static int iwl3945_set_static_key(struct iwl_priv *priv, | |
251 | struct ieee80211_key_conf *key) | |
252 | { | |
253 | if (key->alg == ALG_WEP) | |
254 | return -EOPNOTSUPP; | |
255 | ||
256 | IWL_ERR(priv, "Static key invalid: alg %d\n", key->alg); | |
257 | return -EINVAL; | |
258 | } | |
259 | ||
4a8a4322 | 260 | static void iwl3945_clear_free_frames(struct iwl_priv *priv) |
b481de9c ZY |
261 | { |
262 | struct list_head *element; | |
263 | ||
e1623446 | 264 | IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n", |
b481de9c ZY |
265 | priv->frames_count); |
266 | ||
267 | while (!list_empty(&priv->free_frames)) { | |
268 | element = priv->free_frames.next; | |
269 | list_del(element); | |
bb8c093b | 270 | kfree(list_entry(element, struct iwl3945_frame, list)); |
b481de9c ZY |
271 | priv->frames_count--; |
272 | } | |
273 | ||
274 | if (priv->frames_count) { | |
39aadf8c | 275 | IWL_WARN(priv, "%d frames still in use. Did we lose one?\n", |
b481de9c ZY |
276 | priv->frames_count); |
277 | priv->frames_count = 0; | |
278 | } | |
279 | } | |
280 | ||
4a8a4322 | 281 | static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl_priv *priv) |
b481de9c | 282 | { |
bb8c093b | 283 | struct iwl3945_frame *frame; |
b481de9c ZY |
284 | struct list_head *element; |
285 | if (list_empty(&priv->free_frames)) { | |
286 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
287 | if (!frame) { | |
15b1687c | 288 | IWL_ERR(priv, "Could not allocate frame!\n"); |
b481de9c ZY |
289 | return NULL; |
290 | } | |
291 | ||
292 | priv->frames_count++; | |
293 | return frame; | |
294 | } | |
295 | ||
296 | element = priv->free_frames.next; | |
297 | list_del(element); | |
bb8c093b | 298 | return list_entry(element, struct iwl3945_frame, list); |
b481de9c ZY |
299 | } |
300 | ||
4a8a4322 | 301 | static void iwl3945_free_frame(struct iwl_priv *priv, struct iwl3945_frame *frame) |
b481de9c ZY |
302 | { |
303 | memset(frame, 0, sizeof(*frame)); | |
304 | list_add(&frame->list, &priv->free_frames); | |
305 | } | |
306 | ||
4a8a4322 | 307 | unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv, |
b481de9c | 308 | struct ieee80211_hdr *hdr, |
73ec1cc2 | 309 | int left) |
b481de9c ZY |
310 | { |
311 | ||
8ccde88a | 312 | if (!iwl_is_associated(priv) || !priv->ibss_beacon || |
05c914fe JB |
313 | ((priv->iw_mode != NL80211_IFTYPE_ADHOC) && |
314 | (priv->iw_mode != NL80211_IFTYPE_AP))) | |
b481de9c ZY |
315 | return 0; |
316 | ||
317 | if (priv->ibss_beacon->len > left) | |
318 | return 0; | |
319 | ||
320 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); | |
321 | ||
322 | return priv->ibss_beacon->len; | |
323 | } | |
324 | ||
4a8a4322 | 325 | static int iwl3945_send_beacon_cmd(struct iwl_priv *priv) |
b481de9c | 326 | { |
bb8c093b | 327 | struct iwl3945_frame *frame; |
b481de9c ZY |
328 | unsigned int frame_size; |
329 | int rc; | |
330 | u8 rate; | |
331 | ||
bb8c093b | 332 | frame = iwl3945_get_free_frame(priv); |
b481de9c ZY |
333 | |
334 | if (!frame) { | |
15b1687c | 335 | IWL_ERR(priv, "Could not obtain free frame buffer for beacon " |
b481de9c ZY |
336 | "command.\n"); |
337 | return -ENOMEM; | |
338 | } | |
339 | ||
8ccde88a | 340 | rate = iwl_rate_get_lowest_plcp(priv); |
b481de9c | 341 | |
bb8c093b | 342 | frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate); |
b481de9c | 343 | |
518099a8 | 344 | rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
345 | &frame->u.cmd[0]); |
346 | ||
bb8c093b | 347 | iwl3945_free_frame(priv, frame); |
b481de9c ZY |
348 | |
349 | return rc; | |
350 | } | |
351 | ||
4a8a4322 | 352 | static void iwl3945_unset_hw_params(struct iwl_priv *priv) |
b481de9c | 353 | { |
3832ec9d | 354 | if (priv->shared_virt) |
f36d04ab SG |
355 | dma_free_coherent(&priv->pci_dev->dev, |
356 | sizeof(struct iwl3945_shared), | |
357 | priv->shared_virt, | |
358 | priv->shared_phys); | |
b481de9c ZY |
359 | } |
360 | ||
4a8a4322 | 361 | static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv, |
e039fa4a | 362 | struct ieee80211_tx_info *info, |
c2acea8e | 363 | struct iwl_device_cmd *cmd, |
b481de9c | 364 | struct sk_buff *skb_frag, |
6e21f15c | 365 | int sta_id) |
b481de9c | 366 | { |
9744c91f | 367 | struct iwl3945_tx_cmd *tx_cmd = (struct iwl3945_tx_cmd *)cmd->cmd.payload; |
c587de0b | 368 | struct iwl_hw_key *keyinfo = &priv->stations[sta_id].keyinfo; |
b481de9c ZY |
369 | |
370 | switch (keyinfo->alg) { | |
371 | case ALG_CCMP: | |
9744c91f AK |
372 | tx_cmd->sec_ctl = TX_CMD_SEC_CCM; |
373 | memcpy(tx_cmd->key, keyinfo->key, keyinfo->keylen); | |
e1623446 | 374 | IWL_DEBUG_TX(priv, "tx_cmd with AES hwcrypto\n"); |
b481de9c ZY |
375 | break; |
376 | ||
377 | case ALG_TKIP: | |
b481de9c ZY |
378 | break; |
379 | ||
380 | case ALG_WEP: | |
9744c91f | 381 | tx_cmd->sec_ctl = TX_CMD_SEC_WEP | |
e039fa4a | 382 | (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT; |
b481de9c ZY |
383 | |
384 | if (keyinfo->keylen == 13) | |
9744c91f | 385 | tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128; |
b481de9c | 386 | |
9744c91f | 387 | memcpy(&tx_cmd->key[3], keyinfo->key, keyinfo->keylen); |
b481de9c | 388 | |
e1623446 | 389 | IWL_DEBUG_TX(priv, "Configuring packet for WEP encryption " |
e039fa4a | 390 | "with key %d\n", info->control.hw_key->hw_key_idx); |
b481de9c ZY |
391 | break; |
392 | ||
b481de9c | 393 | default: |
978785a3 | 394 | IWL_ERR(priv, "Unknown encode alg %d\n", keyinfo->alg); |
b481de9c ZY |
395 | break; |
396 | } | |
397 | } | |
398 | ||
399 | /* | |
400 | * handle build REPLY_TX command notification. | |
401 | */ | |
4a8a4322 | 402 | static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv, |
c2acea8e | 403 | struct iwl_device_cmd *cmd, |
e039fa4a | 404 | struct ieee80211_tx_info *info, |
e52119c5 | 405 | struct ieee80211_hdr *hdr, u8 std_id) |
b481de9c | 406 | { |
9744c91f AK |
407 | struct iwl3945_tx_cmd *tx_cmd = (struct iwl3945_tx_cmd *)cmd->cmd.payload; |
408 | __le32 tx_flags = tx_cmd->tx_flags; | |
fd7c8a40 | 409 | __le16 fc = hdr->frame_control; |
b481de9c | 410 | |
9744c91f | 411 | tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
e039fa4a | 412 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
b481de9c | 413 | tx_flags |= TX_CMD_FLG_ACK_MSK; |
fd7c8a40 | 414 | if (ieee80211_is_mgmt(fc)) |
b481de9c | 415 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
fd7c8a40 | 416 | if (ieee80211_is_probe_resp(fc) && |
b481de9c ZY |
417 | !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) |
418 | tx_flags |= TX_CMD_FLG_TSF_MSK; | |
419 | } else { | |
420 | tx_flags &= (~TX_CMD_FLG_ACK_MSK); | |
421 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; | |
422 | } | |
423 | ||
9744c91f | 424 | tx_cmd->sta_id = std_id; |
8b7b1e05 | 425 | if (ieee80211_has_morefrags(fc)) |
b481de9c ZY |
426 | tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; |
427 | ||
fd7c8a40 HH |
428 | if (ieee80211_is_data_qos(fc)) { |
429 | u8 *qc = ieee80211_get_qos_ctl(hdr); | |
9744c91f | 430 | tx_cmd->tid_tspec = qc[0] & 0xf; |
b481de9c | 431 | tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 432 | } else { |
b481de9c | 433 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 434 | } |
b481de9c | 435 | |
37dc70fe | 436 | priv->cfg->ops->utils->rts_tx_cmd_flag(info, &tx_flags); |
b481de9c ZY |
437 | |
438 | if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK)) | |
439 | tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; | |
440 | ||
441 | tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); | |
fd7c8a40 HH |
442 | if (ieee80211_is_mgmt(fc)) { |
443 | if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) | |
9744c91f | 444 | tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3); |
b481de9c | 445 | else |
9744c91f | 446 | tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2); |
ab53d8af | 447 | } else { |
9744c91f | 448 | tx_cmd->timeout.pm_frame_timeout = 0; |
ab53d8af | 449 | } |
b481de9c | 450 | |
9744c91f AK |
451 | tx_cmd->driver_txop = 0; |
452 | tx_cmd->tx_flags = tx_flags; | |
453 | tx_cmd->next_frame_len = 0; | |
b481de9c ZY |
454 | } |
455 | ||
b481de9c ZY |
456 | /* |
457 | * start REPLY_TX command process | |
458 | */ | |
4a8a4322 | 459 | static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) |
b481de9c ZY |
460 | { |
461 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; | |
e039fa4a | 462 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
9744c91f | 463 | struct iwl3945_tx_cmd *tx_cmd; |
188cf6c7 | 464 | struct iwl_tx_queue *txq = NULL; |
d20b3c65 | 465 | struct iwl_queue *q = NULL; |
c2acea8e JB |
466 | struct iwl_device_cmd *out_cmd; |
467 | struct iwl_cmd_meta *out_meta; | |
b481de9c ZY |
468 | dma_addr_t phys_addr; |
469 | dma_addr_t txcmd_phys; | |
e52119c5 | 470 | int txq_id = skb_get_queue_mapping(skb); |
df833b1d | 471 | u16 len, idx, len_org, hdr_len; /* TODO: len_org is not used */ |
54dbb525 TW |
472 | u8 id; |
473 | u8 unicast; | |
b481de9c | 474 | u8 sta_id; |
54dbb525 | 475 | u8 tid = 0; |
b481de9c | 476 | u16 seq_number = 0; |
fd7c8a40 | 477 | __le16 fc; |
b481de9c | 478 | u8 wait_write_ptr = 0; |
54dbb525 | 479 | u8 *qc = NULL; |
b481de9c | 480 | unsigned long flags; |
b481de9c ZY |
481 | |
482 | spin_lock_irqsave(&priv->lock, flags); | |
775a6e27 | 483 | if (iwl_is_rfkill(priv)) { |
e1623446 | 484 | IWL_DEBUG_DROP(priv, "Dropping - RF KILL\n"); |
b481de9c ZY |
485 | goto drop_unlock; |
486 | } | |
487 | ||
e039fa4a | 488 | if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) { |
15b1687c | 489 | IWL_ERR(priv, "ERROR: No TX rate available.\n"); |
b481de9c ZY |
490 | goto drop_unlock; |
491 | } | |
492 | ||
493 | unicast = !is_multicast_ether_addr(hdr->addr1); | |
494 | id = 0; | |
495 | ||
fd7c8a40 | 496 | fc = hdr->frame_control; |
b481de9c | 497 | |
d08853a3 | 498 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c | 499 | if (ieee80211_is_auth(fc)) |
e1623446 | 500 | IWL_DEBUG_TX(priv, "Sending AUTH frame\n"); |
fd7c8a40 | 501 | else if (ieee80211_is_assoc_req(fc)) |
e1623446 | 502 | IWL_DEBUG_TX(priv, "Sending ASSOC frame\n"); |
fd7c8a40 | 503 | else if (ieee80211_is_reassoc_req(fc)) |
e1623446 | 504 | IWL_DEBUG_TX(priv, "Sending REASSOC frame\n"); |
b481de9c ZY |
505 | #endif |
506 | ||
aa065263 | 507 | /* drop all non-injected data frame if we are not associated */ |
914233d6 | 508 | if (ieee80211_is_data(fc) && |
aa065263 | 509 | !(info->flags & IEEE80211_TX_CTL_INJECTED) && |
8ccde88a | 510 | (!iwl_is_associated(priv) || |
05c914fe | 511 | ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) { |
e1623446 | 512 | IWL_DEBUG_DROP(priv, "Dropping - !iwl_is_associated\n"); |
b481de9c ZY |
513 | goto drop_unlock; |
514 | } | |
515 | ||
516 | spin_unlock_irqrestore(&priv->lock, flags); | |
517 | ||
7294ec95 | 518 | hdr_len = ieee80211_hdrlen(fc); |
6440adb5 BC |
519 | |
520 | /* Find (or create) index into station table for destination station */ | |
aa065263 GS |
521 | if (info->flags & IEEE80211_TX_CTL_INJECTED) |
522 | sta_id = priv->hw_params.bcast_sta_id; | |
523 | else | |
524 | sta_id = iwl_get_sta_id(priv, hdr); | |
b481de9c | 525 | if (sta_id == IWL_INVALID_STATION) { |
e1623446 | 526 | IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n", |
e174961c | 527 | hdr->addr1); |
b481de9c ZY |
528 | goto drop; |
529 | } | |
530 | ||
e1623446 | 531 | IWL_DEBUG_RATE(priv, "station Id %d\n", sta_id); |
b481de9c | 532 | |
fd7c8a40 HH |
533 | if (ieee80211_is_data_qos(fc)) { |
534 | qc = ieee80211_get_qos_ctl(hdr); | |
7294ec95 | 535 | tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; |
e6a6cf4c RC |
536 | if (unlikely(tid >= MAX_TID_COUNT)) |
537 | goto drop; | |
c587de0b | 538 | seq_number = priv->stations[sta_id].tid[tid].seq_number & |
b481de9c ZY |
539 | IEEE80211_SCTL_SEQ; |
540 | hdr->seq_ctrl = cpu_to_le16(seq_number) | | |
541 | (hdr->seq_ctrl & | |
c1b4aa3f | 542 | cpu_to_le16(IEEE80211_SCTL_FRAG)); |
b481de9c ZY |
543 | seq_number += 0x10; |
544 | } | |
6440adb5 BC |
545 | |
546 | /* Descriptor for chosen Tx queue */ | |
188cf6c7 | 547 | txq = &priv->txq[txq_id]; |
b481de9c ZY |
548 | q = &txq->q; |
549 | ||
dc57a303 ZY |
550 | if ((iwl_queue_space(q) < q->high_mark)) |
551 | goto drop; | |
552 | ||
b481de9c ZY |
553 | spin_lock_irqsave(&priv->lock, flags); |
554 | ||
fc4b6853 | 555 | idx = get_cmd_index(q, q->write_ptr, 0); |
b481de9c | 556 | |
6440adb5 | 557 | /* Set up driver data for this TFD */ |
dbb6654c | 558 | memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info)); |
fc4b6853 | 559 | txq->txb[q->write_ptr].skb[0] = skb; |
6440adb5 BC |
560 | |
561 | /* Init first empty entry in queue's array of Tx/cmd buffers */ | |
188cf6c7 | 562 | out_cmd = txq->cmd[idx]; |
c2acea8e | 563 | out_meta = &txq->meta[idx]; |
9744c91f | 564 | tx_cmd = (struct iwl3945_tx_cmd *)out_cmd->cmd.payload; |
b481de9c | 565 | memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); |
9744c91f | 566 | memset(tx_cmd, 0, sizeof(*tx_cmd)); |
6440adb5 BC |
567 | |
568 | /* | |
569 | * Set up the Tx-command (not MAC!) header. | |
570 | * Store the chosen Tx queue and TFD index within the sequence field; | |
571 | * after Tx, uCode's Tx response will return this value so driver can | |
572 | * locate the frame within the tx queue and do post-tx processing. | |
573 | */ | |
b481de9c ZY |
574 | out_cmd->hdr.cmd = REPLY_TX; |
575 | out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | | |
fc4b6853 | 576 | INDEX_TO_SEQ(q->write_ptr))); |
6440adb5 BC |
577 | |
578 | /* Copy MAC header from skb into command buffer */ | |
9744c91f | 579 | memcpy(tx_cmd->hdr, hdr, hdr_len); |
b481de9c | 580 | |
df833b1d RC |
581 | |
582 | if (info->control.hw_key) | |
583 | iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, sta_id); | |
584 | ||
585 | /* TODO need this for burst mode later on */ | |
586 | iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, sta_id); | |
587 | ||
588 | /* set is_hcca to 0; it probably will never be implemented */ | |
589 | iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0); | |
590 | ||
591 | /* Total # bytes to be transmitted */ | |
592 | len = (u16)skb->len; | |
9744c91f | 593 | tx_cmd->len = cpu_to_le16(len); |
df833b1d | 594 | |
20594eb0 | 595 | iwl_dbg_log_tx_data_frame(priv, len, hdr); |
22fdf3c9 | 596 | iwl_update_stats(priv, true, fc, len); |
9744c91f AK |
597 | tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; |
598 | tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; | |
df833b1d RC |
599 | |
600 | if (!ieee80211_has_morefrags(hdr->frame_control)) { | |
601 | txq->need_update = 1; | |
602 | if (qc) | |
c587de0b | 603 | priv->stations[sta_id].tid[tid].seq_number = seq_number; |
df833b1d RC |
604 | } else { |
605 | wait_write_ptr = 1; | |
606 | txq->need_update = 0; | |
607 | } | |
608 | ||
609 | IWL_DEBUG_TX(priv, "sequence nr = 0X%x \n", | |
610 | le16_to_cpu(out_cmd->hdr.sequence)); | |
9744c91f AK |
611 | IWL_DEBUG_TX(priv, "tx_flags = 0X%x \n", le32_to_cpu(tx_cmd->tx_flags)); |
612 | iwl_print_hex_dump(priv, IWL_DL_TX, tx_cmd, sizeof(*tx_cmd)); | |
613 | iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr, | |
df833b1d RC |
614 | ieee80211_hdrlen(fc)); |
615 | ||
6440adb5 BC |
616 | /* |
617 | * Use the first empty entry in this queue's command buffer array | |
618 | * to contain the Tx command and MAC header concatenated together | |
619 | * (payload data will be in another buffer). | |
620 | * Size of this varies, due to varying MAC header length. | |
621 | * If end is not dword aligned, we'll have 2 extra bytes at the end | |
622 | * of the MAC header (device reads on dword boundaries). | |
623 | * We'll tell device about this padding later. | |
624 | */ | |
3832ec9d | 625 | len = sizeof(struct iwl3945_tx_cmd) + |
4c897253 | 626 | sizeof(struct iwl_cmd_header) + hdr_len; |
b481de9c ZY |
627 | |
628 | len_org = len; | |
629 | len = (len + 3) & ~3; | |
630 | ||
631 | if (len_org != len) | |
632 | len_org = 1; | |
633 | else | |
634 | len_org = 0; | |
635 | ||
6440adb5 BC |
636 | /* Physical address of this Tx command's header (not MAC header!), |
637 | * within command buffer array. */ | |
df833b1d RC |
638 | txcmd_phys = pci_map_single(priv->pci_dev, &out_cmd->hdr, |
639 | len, PCI_DMA_TODEVICE); | |
640 | /* we do not map meta data ... so we can safely access address to | |
641 | * provide to unmap command*/ | |
c2acea8e JB |
642 | pci_unmap_addr_set(out_meta, mapping, txcmd_phys); |
643 | pci_unmap_len_set(out_meta, len, len); | |
b481de9c | 644 | |
6440adb5 BC |
645 | /* Add buffer containing Tx command and MAC(!) header to TFD's |
646 | * first entry */ | |
7aaa1d79 SO |
647 | priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq, |
648 | txcmd_phys, len, 1, 0); | |
b481de9c | 649 | |
b481de9c | 650 | |
6440adb5 BC |
651 | /* Set up TFD's 2nd entry to point directly to remainder of skb, |
652 | * if any (802.11 null frames have no payload). */ | |
b481de9c ZY |
653 | len = skb->len - hdr_len; |
654 | if (len) { | |
655 | phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len, | |
656 | len, PCI_DMA_TODEVICE); | |
7aaa1d79 SO |
657 | priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq, |
658 | phys_addr, len, | |
659 | 0, U32_PAD(len)); | |
b481de9c ZY |
660 | } |
661 | ||
b481de9c | 662 | |
6440adb5 | 663 | /* Tell device the write index *just past* this latest filled TFD */ |
c54b679d | 664 | q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); |
7bfedc59 | 665 | iwl_txq_update_write_ptr(priv, txq); |
b481de9c ZY |
666 | spin_unlock_irqrestore(&priv->lock, flags); |
667 | ||
d20b3c65 | 668 | if ((iwl_queue_space(q) < q->high_mark) |
b481de9c ZY |
669 | && priv->mac80211_registered) { |
670 | if (wait_write_ptr) { | |
671 | spin_lock_irqsave(&priv->lock, flags); | |
672 | txq->need_update = 1; | |
4f3602c8 | 673 | iwl_txq_update_write_ptr(priv, txq); |
b481de9c ZY |
674 | spin_unlock_irqrestore(&priv->lock, flags); |
675 | } | |
676 | ||
e4e72fb4 | 677 | iwl_stop_queue(priv, skb_get_queue_mapping(skb)); |
b481de9c ZY |
678 | } |
679 | ||
680 | return 0; | |
681 | ||
682 | drop_unlock: | |
683 | spin_unlock_irqrestore(&priv->lock, flags); | |
684 | drop: | |
685 | return -1; | |
686 | } | |
687 | ||
b481de9c ZY |
688 | #define BEACON_TIME_MASK_LOW 0x00FFFFFF |
689 | #define BEACON_TIME_MASK_HIGH 0xFF000000 | |
690 | #define TIME_UNIT 1024 | |
691 | ||
692 | /* | |
693 | * extended beacon time format | |
694 | * time in usec will be changed into a 32-bit value in 8:24 format | |
695 | * the high 1 byte is the beacon counts | |
696 | * the lower 3 bytes is the time in usec within one beacon interval | |
697 | */ | |
698 | ||
bb8c093b | 699 | static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval) |
b481de9c ZY |
700 | { |
701 | u32 quot; | |
702 | u32 rem; | |
703 | u32 interval = beacon_interval * 1024; | |
704 | ||
705 | if (!interval || !usec) | |
706 | return 0; | |
707 | ||
708 | quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); | |
709 | rem = (usec % interval) & BEACON_TIME_MASK_LOW; | |
710 | ||
711 | return (quot << 24) + rem; | |
712 | } | |
713 | ||
714 | /* base is usually what we get from ucode with each received frame, | |
715 | * the same as HW timer counter counting down | |
716 | */ | |
717 | ||
bb8c093b | 718 | static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) |
b481de9c ZY |
719 | { |
720 | u32 base_low = base & BEACON_TIME_MASK_LOW; | |
721 | u32 addon_low = addon & BEACON_TIME_MASK_LOW; | |
722 | u32 interval = beacon_interval * TIME_UNIT; | |
723 | u32 res = (base & BEACON_TIME_MASK_HIGH) + | |
724 | (addon & BEACON_TIME_MASK_HIGH); | |
725 | ||
726 | if (base_low > addon_low) | |
727 | res += base_low - addon_low; | |
728 | else if (base_low < addon_low) { | |
729 | res += interval + base_low - addon_low; | |
730 | res += (1 << 24); | |
731 | } else | |
732 | res += (1 << 24); | |
733 | ||
734 | return cpu_to_le32(res); | |
735 | } | |
736 | ||
4a8a4322 | 737 | static int iwl3945_get_measurement(struct iwl_priv *priv, |
b481de9c ZY |
738 | struct ieee80211_measurement_params *params, |
739 | u8 type) | |
740 | { | |
600c0e11 | 741 | struct iwl_spectrum_cmd spectrum; |
2f301227 | 742 | struct iwl_rx_packet *pkt; |
c2d79b48 | 743 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
744 | .id = REPLY_SPECTRUM_MEASUREMENT_CMD, |
745 | .data = (void *)&spectrum, | |
c2acea8e | 746 | .flags = CMD_WANT_SKB, |
b481de9c ZY |
747 | }; |
748 | u32 add_time = le64_to_cpu(params->start_time); | |
749 | int rc; | |
750 | int spectrum_resp_status; | |
751 | int duration = le16_to_cpu(params->duration); | |
752 | ||
8ccde88a | 753 | if (iwl_is_associated(priv)) |
b481de9c | 754 | add_time = |
bb8c093b | 755 | iwl3945_usecs_to_beacons( |
b481de9c ZY |
756 | le64_to_cpu(params->start_time) - priv->last_tsf, |
757 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
758 | ||
759 | memset(&spectrum, 0, sizeof(spectrum)); | |
760 | ||
761 | spectrum.channel_count = cpu_to_le16(1); | |
762 | spectrum.flags = | |
763 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; | |
764 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; | |
765 | cmd.len = sizeof(spectrum); | |
766 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); | |
767 | ||
8ccde88a | 768 | if (iwl_is_associated(priv)) |
b481de9c | 769 | spectrum.start_time = |
bb8c093b | 770 | iwl3945_add_beacon_time(priv->last_beacon_time, |
b481de9c ZY |
771 | add_time, |
772 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
773 | else | |
774 | spectrum.start_time = 0; | |
775 | ||
776 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); | |
777 | spectrum.channels[0].channel = params->channel; | |
778 | spectrum.channels[0].type = type; | |
8ccde88a | 779 | if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) |
b481de9c ZY |
780 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | |
781 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; | |
782 | ||
518099a8 | 783 | rc = iwl_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
784 | if (rc) |
785 | return rc; | |
786 | ||
2f301227 ZY |
787 | pkt = (struct iwl_rx_packet *)cmd.reply_page; |
788 | if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { | |
15b1687c | 789 | IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n"); |
b481de9c ZY |
790 | rc = -EIO; |
791 | } | |
792 | ||
2f301227 | 793 | spectrum_resp_status = le16_to_cpu(pkt->u.spectrum.status); |
b481de9c ZY |
794 | switch (spectrum_resp_status) { |
795 | case 0: /* Command will be handled */ | |
2f301227 | 796 | if (pkt->u.spectrum.id != 0xff) { |
e1623446 | 797 | IWL_DEBUG_INFO(priv, "Replaced existing measurement: %d\n", |
2f301227 | 798 | pkt->u.spectrum.id); |
b481de9c ZY |
799 | priv->measurement_status &= ~MEASUREMENT_READY; |
800 | } | |
801 | priv->measurement_status |= MEASUREMENT_ACTIVE; | |
802 | rc = 0; | |
803 | break; | |
804 | ||
805 | case 1: /* Command will not be handled */ | |
806 | rc = -EAGAIN; | |
807 | break; | |
808 | } | |
809 | ||
64a76b50 | 810 | iwl_free_pages(priv, cmd.reply_page); |
b481de9c ZY |
811 | |
812 | return rc; | |
813 | } | |
b481de9c | 814 | |
4a8a4322 | 815 | static void iwl3945_rx_reply_alive(struct iwl_priv *priv, |
6100b588 | 816 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 817 | { |
2f301227 | 818 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
3d24a9f7 | 819 | struct iwl_alive_resp *palive; |
b481de9c ZY |
820 | struct delayed_work *pwork; |
821 | ||
822 | palive = &pkt->u.alive_frame; | |
823 | ||
e1623446 | 824 | IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision " |
b481de9c ZY |
825 | "0x%01X 0x%01X\n", |
826 | palive->is_valid, palive->ver_type, | |
827 | palive->ver_subtype); | |
828 | ||
829 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
e1623446 | 830 | IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); |
3d24a9f7 TW |
831 | memcpy(&priv->card_alive_init, &pkt->u.alive_frame, |
832 | sizeof(struct iwl_alive_resp)); | |
b481de9c ZY |
833 | pwork = &priv->init_alive_start; |
834 | } else { | |
e1623446 | 835 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
b481de9c | 836 | memcpy(&priv->card_alive, &pkt->u.alive_frame, |
3d24a9f7 | 837 | sizeof(struct iwl_alive_resp)); |
b481de9c | 838 | pwork = &priv->alive_start; |
bb8c093b | 839 | iwl3945_disable_events(priv); |
b481de9c ZY |
840 | } |
841 | ||
842 | /* We delay the ALIVE response by 5ms to | |
843 | * give the HW RF Kill time to activate... */ | |
844 | if (palive->is_valid == UCODE_VALID_OK) | |
845 | queue_delayed_work(priv->workqueue, pwork, | |
846 | msecs_to_jiffies(5)); | |
847 | else | |
39aadf8c | 848 | IWL_WARN(priv, "uCode did not respond OK.\n"); |
b481de9c ZY |
849 | } |
850 | ||
4a8a4322 | 851 | static void iwl3945_rx_reply_add_sta(struct iwl_priv *priv, |
6100b588 | 852 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 853 | { |
c7e035a9 | 854 | #ifdef CONFIG_IWLWIFI_DEBUG |
2f301227 | 855 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
c7e035a9 | 856 | #endif |
b481de9c | 857 | |
e1623446 | 858 | IWL_DEBUG_RX(priv, "Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status); |
b481de9c ZY |
859 | return; |
860 | } | |
861 | ||
bb8c093b | 862 | static void iwl3945_bg_beacon_update(struct work_struct *work) |
b481de9c | 863 | { |
4a8a4322 AK |
864 | struct iwl_priv *priv = |
865 | container_of(work, struct iwl_priv, beacon_update); | |
b481de9c ZY |
866 | struct sk_buff *beacon; |
867 | ||
868 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 869 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
870 | |
871 | if (!beacon) { | |
15b1687c | 872 | IWL_ERR(priv, "update beacon failed\n"); |
b481de9c ZY |
873 | return; |
874 | } | |
875 | ||
876 | mutex_lock(&priv->mutex); | |
877 | /* new beacon skb is allocated every time; dispose previous.*/ | |
878 | if (priv->ibss_beacon) | |
879 | dev_kfree_skb(priv->ibss_beacon); | |
880 | ||
881 | priv->ibss_beacon = beacon; | |
882 | mutex_unlock(&priv->mutex); | |
883 | ||
bb8c093b | 884 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
885 | } |
886 | ||
4a8a4322 | 887 | static void iwl3945_rx_beacon_notif(struct iwl_priv *priv, |
6100b588 | 888 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 889 | { |
d08853a3 | 890 | #ifdef CONFIG_IWLWIFI_DEBUG |
2f301227 | 891 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
bb8c093b | 892 | struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status); |
b481de9c ZY |
893 | u8 rate = beacon->beacon_notify_hdr.rate; |
894 | ||
e1623446 | 895 | IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d " |
b481de9c ZY |
896 | "tsf %d %d rate %d\n", |
897 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, | |
898 | beacon->beacon_notify_hdr.failure_frame, | |
899 | le32_to_cpu(beacon->ibss_mgr_status), | |
900 | le32_to_cpu(beacon->high_tsf), | |
901 | le32_to_cpu(beacon->low_tsf), rate); | |
902 | #endif | |
903 | ||
05c914fe | 904 | if ((priv->iw_mode == NL80211_IFTYPE_AP) && |
b481de9c ZY |
905 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) |
906 | queue_work(priv->workqueue, &priv->beacon_update); | |
907 | } | |
908 | ||
b481de9c ZY |
909 | /* Handle notification from uCode that card's power state is changing |
910 | * due to software, hardware, or critical temperature RFKILL */ | |
4a8a4322 | 911 | static void iwl3945_rx_card_state_notif(struct iwl_priv *priv, |
6100b588 | 912 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 913 | { |
2f301227 | 914 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
b481de9c ZY |
915 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
916 | unsigned long status = priv->status; | |
917 | ||
4c423a2b | 918 | IWL_WARN(priv, "Card state received: HW:%s SW:%s\n", |
b481de9c ZY |
919 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", |
920 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
921 | ||
5d49f498 | 922 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
923 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
924 | ||
925 | if (flags & HW_CARD_DISABLED) | |
926 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
927 | else | |
928 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
929 | ||
930 | ||
af0053d6 | 931 | iwl_scan_cancel(priv); |
b481de9c ZY |
932 | |
933 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
a60e77e5 JB |
934 | test_bit(STATUS_RF_KILL_HW, &priv->status))) |
935 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, | |
936 | test_bit(STATUS_RF_KILL_HW, &priv->status)); | |
b481de9c ZY |
937 | else |
938 | wake_up_interruptible(&priv->wait_command_queue); | |
939 | } | |
940 | ||
941 | /** | |
bb8c093b | 942 | * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
943 | * |
944 | * Setup the RX handlers for each of the reply types sent from the uCode | |
945 | * to the host. | |
946 | * | |
947 | * This function chains into the hardware specific files for them to setup | |
948 | * any hardware specific handlers as well. | |
949 | */ | |
4a8a4322 | 950 | static void iwl3945_setup_rx_handlers(struct iwl_priv *priv) |
b481de9c | 951 | { |
bb8c093b CH |
952 | priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive; |
953 | priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta; | |
261b9c33 | 954 | priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error; |
8ccde88a | 955 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa; |
81963d68 RC |
956 | priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] = |
957 | iwl_rx_spectrum_measure_notif; | |
030f05ed | 958 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif; |
b481de9c | 959 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
030f05ed | 960 | iwl_rx_pm_debug_statistics_notif; |
bb8c093b | 961 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif; |
b481de9c | 962 | |
9fbab516 BC |
963 | /* |
964 | * The same handler is used for both the REPLY to a discrete | |
965 | * statistics request from the host as well as for the periodic | |
966 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 967 | */ |
bb8c093b CH |
968 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics; |
969 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics; | |
b481de9c | 970 | |
cade0eb2 | 971 | iwl_setup_rx_scan_handlers(priv); |
bb8c093b | 972 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif; |
b481de9c | 973 | |
9fbab516 | 974 | /* Set up hardware specific Rx handlers */ |
bb8c093b | 975 | iwl3945_hw_rx_handler_setup(priv); |
b481de9c ZY |
976 | } |
977 | ||
b481de9c ZY |
978 | /************************** RX-FUNCTIONS ****************************/ |
979 | /* | |
980 | * Rx theory of operation | |
981 | * | |
982 | * The host allocates 32 DMA target addresses and passes the host address | |
983 | * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is | |
984 | * 0 to 31 | |
985 | * | |
986 | * Rx Queue Indexes | |
987 | * The host/firmware share two index registers for managing the Rx buffers. | |
988 | * | |
989 | * The READ index maps to the first position that the firmware may be writing | |
990 | * to -- the driver can read up to (but not including) this position and get | |
991 | * good data. | |
992 | * The READ index is managed by the firmware once the card is enabled. | |
993 | * | |
994 | * The WRITE index maps to the last position the driver has read from -- the | |
995 | * position preceding WRITE is the last slot the firmware can place a packet. | |
996 | * | |
997 | * The queue is empty (no good data) if WRITE = READ - 1, and is full if | |
998 | * WRITE = READ. | |
999 | * | |
9fbab516 | 1000 | * During initialization, the host sets up the READ queue position to the first |
b481de9c ZY |
1001 | * INDEX position, and WRITE to the last (READ - 1 wrapped) |
1002 | * | |
9fbab516 | 1003 | * When the firmware places a packet in a buffer, it will advance the READ index |
b481de9c ZY |
1004 | * and fire the RX interrupt. The driver can then query the READ index and |
1005 | * process as many packets as possible, moving the WRITE index forward as it | |
1006 | * resets the Rx queue buffers with new memory. | |
1007 | * | |
1008 | * The management in the driver is as follows: | |
1009 | * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When | |
1010 | * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled | |
01ebd063 | 1011 | * to replenish the iwl->rxq->rx_free. |
bb8c093b | 1012 | * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the |
b481de9c ZY |
1013 | * iwl->rxq is replenished and the READ INDEX is updated (updating the |
1014 | * 'processed' and 'read' driver indexes as well) | |
1015 | * + A received packet is processed and handed to the kernel network stack, | |
1016 | * detached from the iwl->rxq. The driver 'processed' index is updated. | |
1017 | * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free | |
1018 | * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ | |
1019 | * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there | |
1020 | * were enough free buffers and RX_STALLED is set it is cleared. | |
1021 | * | |
1022 | * | |
1023 | * Driver sequence: | |
1024 | * | |
9fbab516 | 1025 | * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls |
bb8c093b | 1026 | * iwl3945_rx_queue_restock |
9fbab516 | 1027 | * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx |
b481de9c ZY |
1028 | * queue, updates firmware pointers, and updates |
1029 | * the WRITE index. If insufficient rx_free buffers | |
bb8c093b | 1030 | * are available, schedules iwl3945_rx_replenish |
b481de9c ZY |
1031 | * |
1032 | * -- enable interrupts -- | |
6100b588 | 1033 | * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the |
b481de9c ZY |
1034 | * READ INDEX, detaching the SKB from the pool. |
1035 | * Moves the packet buffer from queue to rx_used. | |
bb8c093b | 1036 | * Calls iwl3945_rx_queue_restock to refill any empty |
b481de9c ZY |
1037 | * slots. |
1038 | * ... | |
1039 | * | |
1040 | */ | |
1041 | ||
b481de9c | 1042 | /** |
9fbab516 | 1043 | * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr |
b481de9c | 1044 | */ |
4a8a4322 | 1045 | static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl_priv *priv, |
b481de9c ZY |
1046 | dma_addr_t dma_addr) |
1047 | { | |
1048 | return cpu_to_le32((u32)dma_addr); | |
1049 | } | |
1050 | ||
1051 | /** | |
bb8c093b | 1052 | * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool |
b481de9c | 1053 | * |
9fbab516 | 1054 | * If there are slots in the RX queue that need to be restocked, |
b481de9c | 1055 | * and we have free pre-allocated buffers, fill the ranks as much |
9fbab516 | 1056 | * as we can, pulling from rx_free. |
b481de9c ZY |
1057 | * |
1058 | * This moves the 'write' index forward to catch up with 'processed', and | |
1059 | * also updates the memory address in the firmware to reference the new | |
1060 | * target buffer. | |
1061 | */ | |
7bfedc59 | 1062 | static void iwl3945_rx_queue_restock(struct iwl_priv *priv) |
b481de9c | 1063 | { |
cc2f362c | 1064 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c | 1065 | struct list_head *element; |
6100b588 | 1066 | struct iwl_rx_mem_buffer *rxb; |
b481de9c | 1067 | unsigned long flags; |
7bfedc59 | 1068 | int write; |
b481de9c ZY |
1069 | |
1070 | spin_lock_irqsave(&rxq->lock, flags); | |
1071 | write = rxq->write & ~0x7; | |
37d68317 | 1072 | while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) { |
6440adb5 | 1073 | /* Get next free Rx buffer, remove from free list */ |
b481de9c | 1074 | element = rxq->rx_free.next; |
6100b588 | 1075 | rxb = list_entry(element, struct iwl_rx_mem_buffer, list); |
b481de9c | 1076 | list_del(element); |
6440adb5 BC |
1077 | |
1078 | /* Point to Rx buffer via next RBD in circular buffer */ | |
2f301227 | 1079 | rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->page_dma); |
b481de9c ZY |
1080 | rxq->queue[rxq->write] = rxb; |
1081 | rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; | |
1082 | rxq->free_count--; | |
1083 | } | |
1084 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1085 | /* If the pre-allocated buffer pool is dropping low, schedule to | |
1086 | * refill it */ | |
1087 | if (rxq->free_count <= RX_LOW_WATERMARK) | |
1088 | queue_work(priv->workqueue, &priv->rx_replenish); | |
1089 | ||
1090 | ||
6440adb5 BC |
1091 | /* If we've added more space for the firmware to place data, tell it. |
1092 | * Increment device's write pointer in multiples of 8. */ | |
d14d4440 | 1093 | if ((rxq->write_actual != (rxq->write & ~0x7)) |
b481de9c ZY |
1094 | || (abs(rxq->write - rxq->read) > 7)) { |
1095 | spin_lock_irqsave(&rxq->lock, flags); | |
1096 | rxq->need_update = 1; | |
1097 | spin_unlock_irqrestore(&rxq->lock, flags); | |
7bfedc59 | 1098 | iwl_rx_queue_update_write_ptr(priv, rxq); |
b481de9c | 1099 | } |
b481de9c ZY |
1100 | } |
1101 | ||
1102 | /** | |
bb8c093b | 1103 | * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free |
b481de9c ZY |
1104 | * |
1105 | * When moving to rx_free an SKB is allocated for the slot. | |
1106 | * | |
bb8c093b | 1107 | * Also restock the Rx queue via iwl3945_rx_queue_restock. |
01ebd063 | 1108 | * This is called as a scheduled work item (except for during initialization) |
b481de9c | 1109 | */ |
d14d4440 | 1110 | static void iwl3945_rx_allocate(struct iwl_priv *priv, gfp_t priority) |
b481de9c | 1111 | { |
cc2f362c | 1112 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c | 1113 | struct list_head *element; |
6100b588 | 1114 | struct iwl_rx_mem_buffer *rxb; |
2f301227 | 1115 | struct page *page; |
b481de9c | 1116 | unsigned long flags; |
29b1b268 | 1117 | gfp_t gfp_mask = priority; |
72240498 AK |
1118 | |
1119 | while (1) { | |
1120 | spin_lock_irqsave(&rxq->lock, flags); | |
1121 | ||
1122 | if (list_empty(&rxq->rx_used)) { | |
1123 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1124 | return; | |
1125 | } | |
72240498 | 1126 | spin_unlock_irqrestore(&rxq->lock, flags); |
6440adb5 | 1127 | |
f82a924c | 1128 | if (rxq->free_count > RX_LOW_WATERMARK) |
29b1b268 | 1129 | gfp_mask |= __GFP_NOWARN; |
2f301227 ZY |
1130 | |
1131 | if (priv->hw_params.rx_page_order > 0) | |
29b1b268 | 1132 | gfp_mask |= __GFP_COMP; |
2f301227 | 1133 | |
6440adb5 | 1134 | /* Alloc a new receive buffer */ |
29b1b268 | 1135 | page = alloc_pages(gfp_mask, priv->hw_params.rx_page_order); |
2f301227 | 1136 | if (!page) { |
b481de9c | 1137 | if (net_ratelimit()) |
f82a924c RC |
1138 | IWL_DEBUG_INFO(priv, "Failed to allocate SKB buffer.\n"); |
1139 | if ((rxq->free_count <= RX_LOW_WATERMARK) && | |
1140 | net_ratelimit()) | |
1141 | IWL_CRIT(priv, "Failed to allocate SKB buffer with %s. Only %u free buffers remaining.\n", | |
1142 | priority == GFP_ATOMIC ? "GFP_ATOMIC" : "GFP_KERNEL", | |
1143 | rxq->free_count); | |
b481de9c ZY |
1144 | /* We don't reschedule replenish work here -- we will |
1145 | * call the restock method and if it still needs | |
1146 | * more buffers it will schedule replenish */ | |
1147 | break; | |
1148 | } | |
12342c47 | 1149 | |
de0bd508 RC |
1150 | spin_lock_irqsave(&rxq->lock, flags); |
1151 | if (list_empty(&rxq->rx_used)) { | |
1152 | spin_unlock_irqrestore(&rxq->lock, flags); | |
2f301227 | 1153 | __free_pages(page, priv->hw_params.rx_page_order); |
de0bd508 RC |
1154 | return; |
1155 | } | |
1156 | element = rxq->rx_used.next; | |
1157 | rxb = list_entry(element, struct iwl_rx_mem_buffer, list); | |
1158 | list_del(element); | |
1159 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1160 | ||
2f301227 | 1161 | rxb->page = page; |
6440adb5 | 1162 | /* Get physical address of RB/SKB */ |
2f301227 ZY |
1163 | rxb->page_dma = pci_map_page(priv->pci_dev, page, 0, |
1164 | PAGE_SIZE << priv->hw_params.rx_page_order, | |
1165 | PCI_DMA_FROMDEVICE); | |
72240498 AK |
1166 | |
1167 | spin_lock_irqsave(&rxq->lock, flags); | |
2f301227 | 1168 | |
b481de9c ZY |
1169 | list_add_tail(&rxb->list, &rxq->rx_free); |
1170 | rxq->free_count++; | |
2f301227 ZY |
1171 | priv->alloc_rxb_page++; |
1172 | ||
72240498 | 1173 | spin_unlock_irqrestore(&rxq->lock, flags); |
b481de9c | 1174 | } |
5c0eef96 MA |
1175 | } |
1176 | ||
df833b1d RC |
1177 | void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq) |
1178 | { | |
1179 | unsigned long flags; | |
1180 | int i; | |
1181 | spin_lock_irqsave(&rxq->lock, flags); | |
1182 | INIT_LIST_HEAD(&rxq->rx_free); | |
1183 | INIT_LIST_HEAD(&rxq->rx_used); | |
1184 | /* Fill the rx_used queue with _all_ of the Rx buffers */ | |
1185 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { | |
1186 | /* In the reset function, these buffers may have been allocated | |
1187 | * to an SKB, so we need to unmap and free potential storage */ | |
2f301227 ZY |
1188 | if (rxq->pool[i].page != NULL) { |
1189 | pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma, | |
1190 | PAGE_SIZE << priv->hw_params.rx_page_order, | |
1191 | PCI_DMA_FROMDEVICE); | |
64a76b50 | 1192 | __iwl_free_pages(priv, rxq->pool[i].page); |
2f301227 | 1193 | rxq->pool[i].page = NULL; |
df833b1d RC |
1194 | } |
1195 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); | |
1196 | } | |
1197 | ||
1198 | /* Set us so that we have processed and used all buffers, but have | |
1199 | * not restocked the Rx queue with fresh buffers */ | |
1200 | rxq->read = rxq->write = 0; | |
d14d4440 | 1201 | rxq->write_actual = 0; |
2f301227 | 1202 | rxq->free_count = 0; |
df833b1d RC |
1203 | spin_unlock_irqrestore(&rxq->lock, flags); |
1204 | } | |
df833b1d | 1205 | |
5c0eef96 MA |
1206 | void iwl3945_rx_replenish(void *data) |
1207 | { | |
4a8a4322 | 1208 | struct iwl_priv *priv = data; |
5c0eef96 MA |
1209 | unsigned long flags; |
1210 | ||
d14d4440 | 1211 | iwl3945_rx_allocate(priv, GFP_KERNEL); |
b481de9c ZY |
1212 | |
1213 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 1214 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
1215 | spin_unlock_irqrestore(&priv->lock, flags); |
1216 | } | |
1217 | ||
d14d4440 AK |
1218 | static void iwl3945_rx_replenish_now(struct iwl_priv *priv) |
1219 | { | |
1220 | iwl3945_rx_allocate(priv, GFP_ATOMIC); | |
1221 | ||
1222 | iwl3945_rx_queue_restock(priv); | |
1223 | } | |
1224 | ||
1225 | ||
df833b1d RC |
1226 | /* Assumes that the skb field of the buffers in 'pool' is kept accurate. |
1227 | * If an SKB has been detached, the POOL needs to have its SKB set to NULL | |
1228 | * This free routine walks the list of POOL entries and if SKB is set to | |
1229 | * non NULL it is unmapped and freed | |
1230 | */ | |
1231 | static void iwl3945_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq) | |
1232 | { | |
1233 | int i; | |
1234 | for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { | |
2f301227 ZY |
1235 | if (rxq->pool[i].page != NULL) { |
1236 | pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma, | |
1237 | PAGE_SIZE << priv->hw_params.rx_page_order, | |
1238 | PCI_DMA_FROMDEVICE); | |
64a76b50 | 1239 | __iwl_free_pages(priv, rxq->pool[i].page); |
2f301227 | 1240 | rxq->pool[i].page = NULL; |
df833b1d RC |
1241 | } |
1242 | } | |
1243 | ||
f36d04ab SG |
1244 | dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd, |
1245 | rxq->dma_addr); | |
1246 | dma_free_coherent(&priv->pci_dev->dev, sizeof(struct iwl_rb_status), | |
1247 | rxq->rb_stts, rxq->rb_stts_dma); | |
df833b1d RC |
1248 | rxq->bd = NULL; |
1249 | rxq->rb_stts = NULL; | |
1250 | } | |
df833b1d RC |
1251 | |
1252 | ||
b481de9c ZY |
1253 | /* Convert linear signal-to-noise ratio into dB */ |
1254 | static u8 ratio2dB[100] = { | |
1255 | /* 0 1 2 3 4 5 6 7 8 9 */ | |
1256 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ | |
1257 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ | |
1258 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ | |
1259 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ | |
1260 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ | |
1261 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ | |
1262 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ | |
1263 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ | |
1264 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ | |
1265 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ | |
1266 | }; | |
1267 | ||
1268 | /* Calculates a relative dB value from a ratio of linear | |
1269 | * (i.e. not dB) signal levels. | |
1270 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ | |
bb8c093b | 1271 | int iwl3945_calc_db_from_ratio(int sig_ratio) |
b481de9c | 1272 | { |
221c80cf AB |
1273 | /* 1000:1 or higher just report as 60 dB */ |
1274 | if (sig_ratio >= 1000) | |
b481de9c ZY |
1275 | return 60; |
1276 | ||
221c80cf | 1277 | /* 100:1 or higher, divide by 10 and use table, |
b481de9c | 1278 | * add 20 dB to make up for divide by 10 */ |
221c80cf | 1279 | if (sig_ratio >= 100) |
3ac7f146 | 1280 | return 20 + (int)ratio2dB[sig_ratio/10]; |
b481de9c ZY |
1281 | |
1282 | /* We shouldn't see this */ | |
1283 | if (sig_ratio < 1) | |
1284 | return 0; | |
1285 | ||
1286 | /* Use table for ratios 1:1 - 99:1 */ | |
1287 | return (int)ratio2dB[sig_ratio]; | |
1288 | } | |
1289 | ||
b481de9c | 1290 | /** |
9fbab516 | 1291 | * iwl3945_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
1292 | * |
1293 | * Uses the priv->rx_handlers callback function array to invoke | |
1294 | * the appropriate handlers, including command responses, | |
1295 | * frame-received notifications, and other notifications. | |
1296 | */ | |
4a8a4322 | 1297 | static void iwl3945_rx_handle(struct iwl_priv *priv) |
b481de9c | 1298 | { |
6100b588 | 1299 | struct iwl_rx_mem_buffer *rxb; |
3d24a9f7 | 1300 | struct iwl_rx_packet *pkt; |
cc2f362c | 1301 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
1302 | u32 r, i; |
1303 | int reclaim; | |
1304 | unsigned long flags; | |
5c0eef96 | 1305 | u8 fill_rx = 0; |
d68ab680 | 1306 | u32 count = 8; |
d14d4440 | 1307 | int total_empty = 0; |
b481de9c | 1308 | |
6440adb5 BC |
1309 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
1310 | * buffer that the driver may process (last buffer filled by ucode). */ | |
8cd812bc | 1311 | r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; |
b481de9c ZY |
1312 | i = rxq->read; |
1313 | ||
d14d4440 | 1314 | /* calculate total frames need to be restock after handling RX */ |
7300515d | 1315 | total_empty = r - rxq->write_actual; |
d14d4440 AK |
1316 | if (total_empty < 0) |
1317 | total_empty += RX_QUEUE_SIZE; | |
1318 | ||
1319 | if (total_empty > (RX_QUEUE_SIZE / 2)) | |
5c0eef96 | 1320 | fill_rx = 1; |
b481de9c ZY |
1321 | /* Rx interrupt, but nothing sent from uCode */ |
1322 | if (i == r) | |
af472a95 | 1323 | IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i); |
b481de9c ZY |
1324 | |
1325 | while (i != r) { | |
1326 | rxb = rxq->queue[i]; | |
1327 | ||
9fbab516 | 1328 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
1329 | * then a bug has been introduced in the queue refilling |
1330 | * routines -- catch it here */ | |
1331 | BUG_ON(rxb == NULL); | |
1332 | ||
1333 | rxq->queue[i] = NULL; | |
1334 | ||
2f301227 ZY |
1335 | pci_unmap_page(priv->pci_dev, rxb->page_dma, |
1336 | PAGE_SIZE << priv->hw_params.rx_page_order, | |
1337 | PCI_DMA_FROMDEVICE); | |
1338 | pkt = rxb_addr(rxb); | |
b481de9c | 1339 | |
be1a71a1 JB |
1340 | trace_iwlwifi_dev_rx(priv, pkt, |
1341 | le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK); | |
1342 | ||
b481de9c ZY |
1343 | /* Reclaim a command buffer only if this packet is a response |
1344 | * to a (driver-originated) command. | |
1345 | * If the packet (e.g. Rx frame) originated from uCode, | |
1346 | * there is no command buffer to reclaim. | |
1347 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
1348 | * but apparently a few don't get set; catch them here. */ | |
1349 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
1350 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && | |
1351 | (pkt->hdr.cmd != REPLY_TX); | |
1352 | ||
1353 | /* Based on type of command response or notification, | |
1354 | * handle those that need handling via function in | |
bb8c093b | 1355 | * rx_handlers table. See iwl3945_setup_rx_handlers() */ |
b481de9c | 1356 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
af472a95 | 1357 | IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r, i, |
b481de9c | 1358 | get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); |
86ddbf62 | 1359 | priv->isr_stats.rx_handlers[pkt->hdr.cmd]++; |
29b1b268 | 1360 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); |
b481de9c ZY |
1361 | } else { |
1362 | /* No handling needed */ | |
2f301227 ZY |
1363 | IWL_DEBUG_RX(priv, |
1364 | "r %d i %d No handler needed for %s, 0x%02x\n", | |
b481de9c ZY |
1365 | r, i, get_cmd_string(pkt->hdr.cmd), |
1366 | pkt->hdr.cmd); | |
1367 | } | |
1368 | ||
29b1b268 ZY |
1369 | /* |
1370 | * XXX: After here, we should always check rxb->page | |
1371 | * against NULL before touching it or its virtual | |
1372 | * memory (pkt). Because some rx_handler might have | |
1373 | * already taken or freed the pages. | |
1374 | */ | |
1375 | ||
b481de9c | 1376 | if (reclaim) { |
2f301227 ZY |
1377 | /* Invoke any callbacks, transfer the buffer to caller, |
1378 | * and fire off the (possibly) blocking iwl_send_cmd() | |
b481de9c | 1379 | * as we reclaim the driver command queue */ |
29b1b268 | 1380 | if (rxb->page) |
732587ab | 1381 | iwl_tx_cmd_complete(priv, rxb); |
b481de9c | 1382 | else |
39aadf8c | 1383 | IWL_WARN(priv, "Claim null rxb?\n"); |
b481de9c ZY |
1384 | } |
1385 | ||
7300515d ZY |
1386 | /* Reuse the page if possible. For notification packets and |
1387 | * SKBs that fail to Rx correctly, add them back into the | |
1388 | * rx_free list for reuse later. */ | |
1389 | spin_lock_irqsave(&rxq->lock, flags); | |
2f301227 | 1390 | if (rxb->page != NULL) { |
7300515d ZY |
1391 | rxb->page_dma = pci_map_page(priv->pci_dev, rxb->page, |
1392 | 0, PAGE_SIZE << priv->hw_params.rx_page_order, | |
1393 | PCI_DMA_FROMDEVICE); | |
1394 | list_add_tail(&rxb->list, &rxq->rx_free); | |
1395 | rxq->free_count++; | |
1396 | } else | |
1397 | list_add_tail(&rxb->list, &rxq->rx_used); | |
b481de9c | 1398 | |
b481de9c | 1399 | spin_unlock_irqrestore(&rxq->lock, flags); |
7300515d | 1400 | |
b481de9c | 1401 | i = (i + 1) & RX_QUEUE_MASK; |
5c0eef96 MA |
1402 | /* If there are a lot of unused frames, |
1403 | * restock the Rx queue so ucode won't assert. */ | |
1404 | if (fill_rx) { | |
1405 | count++; | |
1406 | if (count >= 8) { | |
7300515d | 1407 | rxq->read = i; |
d14d4440 | 1408 | iwl3945_rx_replenish_now(priv); |
5c0eef96 MA |
1409 | count = 0; |
1410 | } | |
1411 | } | |
b481de9c ZY |
1412 | } |
1413 | ||
1414 | /* Backtrack one entry */ | |
7300515d | 1415 | rxq->read = i; |
d14d4440 AK |
1416 | if (fill_rx) |
1417 | iwl3945_rx_replenish_now(priv); | |
1418 | else | |
1419 | iwl3945_rx_queue_restock(priv); | |
b481de9c ZY |
1420 | } |
1421 | ||
0359facc | 1422 | /* call this function to flush any scheduled tasklet */ |
4a8a4322 | 1423 | static inline void iwl_synchronize_irq(struct iwl_priv *priv) |
0359facc | 1424 | { |
a96a27f9 | 1425 | /* wait to make sure we flush pending tasklet*/ |
0359facc MA |
1426 | synchronize_irq(priv->pci_dev->irq); |
1427 | tasklet_kill(&priv->irq_tasklet); | |
1428 | } | |
1429 | ||
b481de9c ZY |
1430 | static const char *desc_lookup(int i) |
1431 | { | |
1432 | switch (i) { | |
1433 | case 1: | |
1434 | return "FAIL"; | |
1435 | case 2: | |
1436 | return "BAD_PARAM"; | |
1437 | case 3: | |
1438 | return "BAD_CHECKSUM"; | |
1439 | case 4: | |
1440 | return "NMI_INTERRUPT"; | |
1441 | case 5: | |
1442 | return "SYSASSERT"; | |
1443 | case 6: | |
1444 | return "FATAL_ERROR"; | |
1445 | } | |
1446 | ||
1447 | return "UNKNOWN"; | |
1448 | } | |
1449 | ||
1450 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
1451 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
1452 | ||
b7a79404 | 1453 | void iwl3945_dump_nic_error_log(struct iwl_priv *priv) |
b481de9c ZY |
1454 | { |
1455 | u32 i; | |
1456 | u32 desc, time, count, base, data1; | |
1457 | u32 blink1, blink2, ilink1, ilink2; | |
b481de9c ZY |
1458 | |
1459 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); | |
1460 | ||
bb8c093b | 1461 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
15b1687c | 1462 | IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base); |
b481de9c ZY |
1463 | return; |
1464 | } | |
1465 | ||
b481de9c | 1466 | |
5d49f498 | 1467 | count = iwl_read_targ_mem(priv, base); |
b481de9c ZY |
1468 | |
1469 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
15b1687c WT |
1470 | IWL_ERR(priv, "Start IWL Error Log Dump:\n"); |
1471 | IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", | |
1472 | priv->status, count); | |
b481de9c ZY |
1473 | } |
1474 | ||
15b1687c | 1475 | IWL_ERR(priv, "Desc Time asrtPC blink2 " |
b481de9c ZY |
1476 | "ilink1 nmiPC Line\n"); |
1477 | for (i = ERROR_START_OFFSET; | |
1478 | i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; | |
1479 | i += ERROR_ELEM_SIZE) { | |
5d49f498 | 1480 | desc = iwl_read_targ_mem(priv, base + i); |
b481de9c | 1481 | time = |
5d49f498 | 1482 | iwl_read_targ_mem(priv, base + i + 1 * sizeof(u32)); |
b481de9c | 1483 | blink1 = |
5d49f498 | 1484 | iwl_read_targ_mem(priv, base + i + 2 * sizeof(u32)); |
b481de9c | 1485 | blink2 = |
5d49f498 | 1486 | iwl_read_targ_mem(priv, base + i + 3 * sizeof(u32)); |
b481de9c | 1487 | ilink1 = |
5d49f498 | 1488 | iwl_read_targ_mem(priv, base + i + 4 * sizeof(u32)); |
b481de9c | 1489 | ilink2 = |
5d49f498 | 1490 | iwl_read_targ_mem(priv, base + i + 5 * sizeof(u32)); |
b481de9c | 1491 | data1 = |
5d49f498 | 1492 | iwl_read_targ_mem(priv, base + i + 6 * sizeof(u32)); |
b481de9c | 1493 | |
15b1687c WT |
1494 | IWL_ERR(priv, |
1495 | "%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", | |
1496 | desc_lookup(desc), desc, time, blink1, blink2, | |
1497 | ilink1, ilink2, data1); | |
be1a71a1 JB |
1498 | trace_iwlwifi_dev_ucode_error(priv, desc, time, data1, 0, |
1499 | 0, blink1, blink2, ilink1, ilink2); | |
b481de9c | 1500 | } |
b481de9c ZY |
1501 | } |
1502 | ||
f58177b9 | 1503 | #define EVENT_START_OFFSET (6 * sizeof(u32)) |
b481de9c ZY |
1504 | |
1505 | /** | |
bb8c093b | 1506 | * iwl3945_print_event_log - Dump error event log to syslog |
b481de9c | 1507 | * |
b481de9c | 1508 | */ |
b03d7d0f WYG |
1509 | static int iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx, |
1510 | u32 num_events, u32 mode, | |
1511 | int pos, char **buf, size_t bufsz) | |
b481de9c ZY |
1512 | { |
1513 | u32 i; | |
1514 | u32 base; /* SRAM byte address of event log header */ | |
1515 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
1516 | u32 ptr; /* SRAM byte address of log data */ | |
1517 | u32 ev, time, data; /* event log data */ | |
e5854471 | 1518 | unsigned long reg_flags; |
b481de9c ZY |
1519 | |
1520 | if (num_events == 0) | |
b03d7d0f | 1521 | return pos; |
b481de9c ZY |
1522 | |
1523 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
1524 | ||
1525 | if (mode == 0) | |
1526 | event_size = 2 * sizeof(u32); | |
1527 | else | |
1528 | event_size = 3 * sizeof(u32); | |
1529 | ||
1530 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
1531 | ||
e5854471 BC |
1532 | /* Make sure device is powered up for SRAM reads */ |
1533 | spin_lock_irqsave(&priv->reg_lock, reg_flags); | |
1534 | iwl_grab_nic_access(priv); | |
1535 | ||
1536 | /* Set starting address; reads will auto-increment */ | |
1537 | _iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, ptr); | |
1538 | rmb(); | |
1539 | ||
b481de9c ZY |
1540 | /* "time" is actually "data" for mode 0 (no timestamp). |
1541 | * place event id # at far right for easier visual parsing. */ | |
1542 | for (i = 0; i < num_events; i++) { | |
e5854471 BC |
1543 | ev = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
1544 | time = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); | |
15b1687c WT |
1545 | if (mode == 0) { |
1546 | /* data, ev */ | |
b03d7d0f WYG |
1547 | if (bufsz) { |
1548 | pos += scnprintf(*buf + pos, bufsz - pos, | |
1549 | "0x%08x:%04u\n", | |
1550 | time, ev); | |
1551 | } else { | |
1552 | IWL_ERR(priv, "0x%08x\t%04u\n", time, ev); | |
1553 | trace_iwlwifi_dev_ucode_event(priv, 0, | |
1554 | time, ev); | |
1555 | } | |
15b1687c | 1556 | } else { |
e5854471 | 1557 | data = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b03d7d0f WYG |
1558 | if (bufsz) { |
1559 | pos += scnprintf(*buf + pos, bufsz - pos, | |
1560 | "%010u:0x%08x:%04u\n", | |
1561 | time, data, ev); | |
1562 | } else { | |
1563 | IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", | |
1564 | time, data, ev); | |
1565 | trace_iwlwifi_dev_ucode_event(priv, time, | |
1566 | data, ev); | |
1567 | } | |
b481de9c ZY |
1568 | } |
1569 | } | |
e5854471 BC |
1570 | |
1571 | /* Allow device to power down */ | |
1572 | iwl_release_nic_access(priv); | |
1573 | spin_unlock_irqrestore(&priv->reg_lock, reg_flags); | |
b03d7d0f | 1574 | return pos; |
b481de9c ZY |
1575 | } |
1576 | ||
c341ddb2 WYG |
1577 | /** |
1578 | * iwl3945_print_last_event_logs - Dump the newest # of event log to syslog | |
1579 | */ | |
b03d7d0f | 1580 | static int iwl3945_print_last_event_logs(struct iwl_priv *priv, u32 capacity, |
c341ddb2 | 1581 | u32 num_wraps, u32 next_entry, |
b03d7d0f WYG |
1582 | u32 size, u32 mode, |
1583 | int pos, char **buf, size_t bufsz) | |
c341ddb2 WYG |
1584 | { |
1585 | /* | |
1586 | * display the newest DEFAULT_LOG_ENTRIES entries | |
1587 | * i.e the entries just before the next ont that uCode would fill. | |
1588 | */ | |
1589 | if (num_wraps) { | |
1590 | if (next_entry < size) { | |
b03d7d0f WYG |
1591 | pos = iwl3945_print_event_log(priv, |
1592 | capacity - (size - next_entry), | |
1593 | size - next_entry, mode, | |
1594 | pos, buf, bufsz); | |
1595 | pos = iwl3945_print_event_log(priv, 0, | |
1596 | next_entry, mode, | |
1597 | pos, buf, bufsz); | |
c341ddb2 | 1598 | } else |
b03d7d0f WYG |
1599 | pos = iwl3945_print_event_log(priv, next_entry - size, |
1600 | size, mode, | |
1601 | pos, buf, bufsz); | |
c341ddb2 WYG |
1602 | } else { |
1603 | if (next_entry < size) | |
b03d7d0f WYG |
1604 | pos = iwl3945_print_event_log(priv, 0, |
1605 | next_entry, mode, | |
1606 | pos, buf, bufsz); | |
c341ddb2 | 1607 | else |
b03d7d0f WYG |
1608 | pos = iwl3945_print_event_log(priv, next_entry - size, |
1609 | size, mode, | |
1610 | pos, buf, bufsz); | |
c341ddb2 | 1611 | } |
b03d7d0f | 1612 | return pos; |
c341ddb2 WYG |
1613 | } |
1614 | ||
84c40692 BC |
1615 | /* For sanity check only. Actual size is determined by uCode, typ. 512 */ |
1616 | #define IWL3945_MAX_EVENT_LOG_SIZE (512) | |
1617 | ||
c341ddb2 WYG |
1618 | #define DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES (20) |
1619 | ||
b03d7d0f WYG |
1620 | int iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log, |
1621 | char **buf, bool display) | |
b481de9c | 1622 | { |
b481de9c ZY |
1623 | u32 base; /* SRAM byte address of event log header */ |
1624 | u32 capacity; /* event log capacity in # entries */ | |
1625 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
1626 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
1627 | u32 next_entry; /* index of next entry to be written by uCode */ | |
1628 | u32 size; /* # entries that we'll print */ | |
b03d7d0f WYG |
1629 | int pos = 0; |
1630 | size_t bufsz = 0; | |
b481de9c ZY |
1631 | |
1632 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
bb8c093b | 1633 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
15b1687c | 1634 | IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base); |
937c397e | 1635 | return -EINVAL; |
b481de9c ZY |
1636 | } |
1637 | ||
b481de9c | 1638 | /* event log header */ |
5d49f498 AK |
1639 | capacity = iwl_read_targ_mem(priv, base); |
1640 | mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
1641 | num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
1642 | next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
b481de9c | 1643 | |
84c40692 BC |
1644 | if (capacity > IWL3945_MAX_EVENT_LOG_SIZE) { |
1645 | IWL_ERR(priv, "Log capacity %d is bogus, limit to %d entries\n", | |
1646 | capacity, IWL3945_MAX_EVENT_LOG_SIZE); | |
1647 | capacity = IWL3945_MAX_EVENT_LOG_SIZE; | |
1648 | } | |
1649 | ||
1650 | if (next_entry > IWL3945_MAX_EVENT_LOG_SIZE) { | |
1651 | IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n", | |
1652 | next_entry, IWL3945_MAX_EVENT_LOG_SIZE); | |
1653 | next_entry = IWL3945_MAX_EVENT_LOG_SIZE; | |
1654 | } | |
1655 | ||
b481de9c ZY |
1656 | size = num_wraps ? capacity : next_entry; |
1657 | ||
1658 | /* bail out if nothing in log */ | |
1659 | if (size == 0) { | |
15b1687c | 1660 | IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); |
b03d7d0f | 1661 | return pos; |
b481de9c ZY |
1662 | } |
1663 | ||
c341ddb2 | 1664 | #ifdef CONFIG_IWLWIFI_DEBUG |
521d9bce | 1665 | if (!(iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) && !full_log) |
c341ddb2 WYG |
1666 | size = (size > DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES) |
1667 | ? DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES : size; | |
1668 | #else | |
1669 | size = (size > DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES) | |
1670 | ? DEFAULT_IWL3945_DUMP_EVENT_LOG_ENTRIES : size; | |
1671 | #endif | |
1672 | ||
1673 | IWL_ERR(priv, "Start IWL Event Log Dump: display last %d count\n", | |
1674 | size); | |
b481de9c | 1675 | |
c341ddb2 | 1676 | #ifdef CONFIG_IWLWIFI_DEBUG |
b03d7d0f WYG |
1677 | if (display) { |
1678 | if (full_log) | |
1679 | bufsz = capacity * 48; | |
1680 | else | |
1681 | bufsz = size * 48; | |
1682 | *buf = kmalloc(bufsz, GFP_KERNEL); | |
1683 | if (!*buf) | |
937c397e | 1684 | return -ENOMEM; |
b03d7d0f | 1685 | } |
c341ddb2 WYG |
1686 | if ((iwl_get_debug_level(priv) & IWL_DL_FW_ERRORS) || full_log) { |
1687 | /* if uCode has wrapped back to top of log, | |
1688 | * start at the oldest entry, | |
1689 | * i.e the next one that uCode would fill. | |
1690 | */ | |
1691 | if (num_wraps) | |
b03d7d0f WYG |
1692 | pos = iwl3945_print_event_log(priv, next_entry, |
1693 | capacity - next_entry, mode, | |
1694 | pos, buf, bufsz); | |
c341ddb2 WYG |
1695 | |
1696 | /* (then/else) start at top of log */ | |
b03d7d0f WYG |
1697 | pos = iwl3945_print_event_log(priv, 0, next_entry, mode, |
1698 | pos, buf, bufsz); | |
c341ddb2 | 1699 | } else |
b03d7d0f WYG |
1700 | pos = iwl3945_print_last_event_logs(priv, capacity, num_wraps, |
1701 | next_entry, size, mode, | |
1702 | pos, buf, bufsz); | |
b7a79404 | 1703 | #else |
b03d7d0f WYG |
1704 | pos = iwl3945_print_last_event_logs(priv, capacity, num_wraps, |
1705 | next_entry, size, mode, | |
1706 | pos, buf, bufsz); | |
c341ddb2 | 1707 | #endif |
b03d7d0f | 1708 | return pos; |
b7a79404 RC |
1709 | } |
1710 | ||
4a8a4322 | 1711 | static void iwl3945_irq_tasklet(struct iwl_priv *priv) |
b481de9c ZY |
1712 | { |
1713 | u32 inta, handled = 0; | |
1714 | u32 inta_fh; | |
1715 | unsigned long flags; | |
d08853a3 | 1716 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
1717 | u32 inta_mask; |
1718 | #endif | |
1719 | ||
1720 | spin_lock_irqsave(&priv->lock, flags); | |
1721 | ||
1722 | /* Ack/clear/reset pending uCode interrupts. | |
1723 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
1724 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
5d49f498 AK |
1725 | inta = iwl_read32(priv, CSR_INT); |
1726 | iwl_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
1727 | |
1728 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
1729 | * Any new interrupts that happen after this, either while we're | |
1730 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
5d49f498 AK |
1731 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
1732 | iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 1733 | |
d08853a3 | 1734 | #ifdef CONFIG_IWLWIFI_DEBUG |
3d816c77 | 1735 | if (iwl_get_debug_level(priv) & IWL_DL_ISR) { |
9fbab516 | 1736 | /* just for debug */ |
5d49f498 | 1737 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
e1623446 | 1738 | IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
b481de9c ZY |
1739 | inta, inta_mask, inta_fh); |
1740 | } | |
1741 | #endif | |
1742 | ||
2f301227 ZY |
1743 | spin_unlock_irqrestore(&priv->lock, flags); |
1744 | ||
b481de9c ZY |
1745 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not |
1746 | * atomic, make sure that inta covers all the interrupts that | |
1747 | * we've discovered, even if FH interrupt came in just after | |
1748 | * reading CSR_INT. */ | |
6f83eaa1 | 1749 | if (inta_fh & CSR39_FH_INT_RX_MASK) |
b481de9c | 1750 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 1751 | if (inta_fh & CSR39_FH_INT_TX_MASK) |
b481de9c ZY |
1752 | inta |= CSR_INT_BIT_FH_TX; |
1753 | ||
1754 | /* Now service all interrupt bits discovered above. */ | |
1755 | if (inta & CSR_INT_BIT_HW_ERR) { | |
58dba728 | 1756 | IWL_ERR(priv, "Hardware error detected. Restarting.\n"); |
b481de9c ZY |
1757 | |
1758 | /* Tell the device to stop sending interrupts */ | |
ed3b932e | 1759 | iwl_disable_interrupts(priv); |
b481de9c | 1760 | |
86ddbf62 | 1761 | priv->isr_stats.hw++; |
8ccde88a | 1762 | iwl_irq_handle_error(priv); |
b481de9c ZY |
1763 | |
1764 | handled |= CSR_INT_BIT_HW_ERR; | |
1765 | ||
b481de9c ZY |
1766 | return; |
1767 | } | |
1768 | ||
d08853a3 | 1769 | #ifdef CONFIG_IWLWIFI_DEBUG |
3d816c77 | 1770 | if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { |
b481de9c | 1771 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
86ddbf62 | 1772 | if (inta & CSR_INT_BIT_SCD) { |
e1623446 | 1773 | IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " |
25c03d8e | 1774 | "the frame/frames.\n"); |
86ddbf62 AK |
1775 | priv->isr_stats.sch++; |
1776 | } | |
b481de9c ZY |
1777 | |
1778 | /* Alive notification via Rx interrupt will do the real work */ | |
86ddbf62 | 1779 | if (inta & CSR_INT_BIT_ALIVE) { |
e1623446 | 1780 | IWL_DEBUG_ISR(priv, "Alive interrupt\n"); |
86ddbf62 AK |
1781 | priv->isr_stats.alive++; |
1782 | } | |
b481de9c ZY |
1783 | } |
1784 | #endif | |
1785 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 1786 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c | 1787 | |
b481de9c ZY |
1788 | /* Error detected by uCode */ |
1789 | if (inta & CSR_INT_BIT_SW_ERR) { | |
15b1687c WT |
1790 | IWL_ERR(priv, "Microcode SW error detected. " |
1791 | "Restarting 0x%X.\n", inta); | |
86ddbf62 AK |
1792 | priv->isr_stats.sw++; |
1793 | priv->isr_stats.sw_err = inta; | |
8ccde88a | 1794 | iwl_irq_handle_error(priv); |
b481de9c ZY |
1795 | handled |= CSR_INT_BIT_SW_ERR; |
1796 | } | |
1797 | ||
1798 | /* uCode wakes up after power-down sleep */ | |
1799 | if (inta & CSR_INT_BIT_WAKEUP) { | |
e1623446 | 1800 | IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); |
141c43a3 | 1801 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); |
4f3602c8 SO |
1802 | iwl_txq_update_write_ptr(priv, &priv->txq[0]); |
1803 | iwl_txq_update_write_ptr(priv, &priv->txq[1]); | |
1804 | iwl_txq_update_write_ptr(priv, &priv->txq[2]); | |
1805 | iwl_txq_update_write_ptr(priv, &priv->txq[3]); | |
1806 | iwl_txq_update_write_ptr(priv, &priv->txq[4]); | |
1807 | iwl_txq_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c | 1808 | |
86ddbf62 | 1809 | priv->isr_stats.wakeup++; |
b481de9c ZY |
1810 | handled |= CSR_INT_BIT_WAKEUP; |
1811 | } | |
1812 | ||
1813 | /* All uCode command responses, including Tx command responses, | |
1814 | * Rx "responses" (frame-received notification), and other | |
1815 | * notifications from uCode come through here*/ | |
1816 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
bb8c093b | 1817 | iwl3945_rx_handle(priv); |
86ddbf62 | 1818 | priv->isr_stats.rx++; |
b481de9c ZY |
1819 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
1820 | } | |
1821 | ||
1822 | if (inta & CSR_INT_BIT_FH_TX) { | |
e1623446 | 1823 | IWL_DEBUG_ISR(priv, "Tx interrupt\n"); |
86ddbf62 | 1824 | priv->isr_stats.tx++; |
b481de9c | 1825 | |
5d49f498 | 1826 | iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6)); |
a8b50a0a MA |
1827 | iwl_write_direct32(priv, FH39_TCSR_CREDIT |
1828 | (FH39_SRVC_CHNL), 0x0); | |
b481de9c ZY |
1829 | handled |= CSR_INT_BIT_FH_TX; |
1830 | } | |
1831 | ||
86ddbf62 | 1832 | if (inta & ~handled) { |
15b1687c | 1833 | IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); |
86ddbf62 AK |
1834 | priv->isr_stats.unhandled++; |
1835 | } | |
b481de9c | 1836 | |
40cefda9 | 1837 | if (inta & ~priv->inta_mask) { |
39aadf8c | 1838 | IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", |
40cefda9 | 1839 | inta & ~priv->inta_mask); |
39aadf8c | 1840 | IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh); |
b481de9c ZY |
1841 | } |
1842 | ||
1843 | /* Re-enable all interrupts */ | |
0359facc MA |
1844 | /* only Re-enable if disabled by irq */ |
1845 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
ed3b932e | 1846 | iwl_enable_interrupts(priv); |
b481de9c | 1847 | |
d08853a3 | 1848 | #ifdef CONFIG_IWLWIFI_DEBUG |
3d816c77 | 1849 | if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { |
5d49f498 AK |
1850 | inta = iwl_read32(priv, CSR_INT); |
1851 | inta_mask = iwl_read32(priv, CSR_INT_MASK); | |
1852 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
e1623446 | 1853 | IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
b481de9c ZY |
1854 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); |
1855 | } | |
1856 | #endif | |
b481de9c ZY |
1857 | } |
1858 | ||
4a8a4322 | 1859 | static int iwl3945_get_channels_for_scan(struct iwl_priv *priv, |
8318d78a | 1860 | enum ieee80211_band band, |
f9340520 | 1861 | u8 is_active, u8 n_probes, |
bb8c093b | 1862 | struct iwl3945_scan_channel *scan_ch) |
b481de9c | 1863 | { |
4e05c234 | 1864 | struct ieee80211_channel *chan; |
8318d78a | 1865 | const struct ieee80211_supported_band *sband; |
d20b3c65 | 1866 | const struct iwl_channel_info *ch_info; |
b481de9c ZY |
1867 | u16 passive_dwell = 0; |
1868 | u16 active_dwell = 0; | |
1869 | int added, i; | |
1870 | ||
cbba18c6 | 1871 | sband = iwl_get_hw_mode(priv, band); |
8318d78a | 1872 | if (!sband) |
b481de9c ZY |
1873 | return 0; |
1874 | ||
77fecfb8 SO |
1875 | active_dwell = iwl_get_active_dwell_time(priv, band, n_probes); |
1876 | passive_dwell = iwl_get_passive_dwell_time(priv, band); | |
b481de9c | 1877 | |
8f4807a1 AK |
1878 | if (passive_dwell <= active_dwell) |
1879 | passive_dwell = active_dwell + 1; | |
1880 | ||
4e05c234 JB |
1881 | for (i = 0, added = 0; i < priv->scan_request->n_channels; i++) { |
1882 | chan = priv->scan_request->channels[i]; | |
1883 | ||
1884 | if (chan->band != band) | |
182e2e66 JB |
1885 | continue; |
1886 | ||
4e05c234 | 1887 | scan_ch->channel = chan->hw_value; |
b481de9c | 1888 | |
e6148917 | 1889 | ch_info = iwl_get_channel_info(priv, band, scan_ch->channel); |
b481de9c | 1890 | if (!is_channel_valid(ch_info)) { |
e1623446 | 1891 | IWL_DEBUG_SCAN(priv, "Channel %d is INVALID for this band.\n", |
b481de9c ZY |
1892 | scan_ch->channel); |
1893 | continue; | |
1894 | } | |
1895 | ||
011a0330 AK |
1896 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
1897 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); | |
1898 | /* If passive , set up for auto-switch | |
1899 | * and use long active_dwell time. | |
1900 | */ | |
b481de9c | 1901 | if (!is_active || is_channel_passive(ch_info) || |
4e05c234 | 1902 | (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) { |
b481de9c | 1903 | scan_ch->type = 0; /* passive */ |
011a0330 AK |
1904 | if (IWL_UCODE_API(priv->ucode_ver) == 1) |
1905 | scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1); | |
1906 | } else { | |
b481de9c | 1907 | scan_ch->type = 1; /* active */ |
011a0330 | 1908 | } |
b481de9c | 1909 | |
011a0330 AK |
1910 | /* Set direct probe bits. These may be used both for active |
1911 | * scan channels (probes gets sent right away), | |
1912 | * or for passive channels (probes get se sent only after | |
1913 | * hearing clear Rx packet).*/ | |
1914 | if (IWL_UCODE_API(priv->ucode_ver) >= 2) { | |
1915 | if (n_probes) | |
0d21044e | 1916 | scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes); |
011a0330 AK |
1917 | } else { |
1918 | /* uCode v1 does not allow setting direct probe bits on | |
1919 | * passive channel. */ | |
1920 | if ((scan_ch->type & 1) && n_probes) | |
0d21044e | 1921 | scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes); |
011a0330 | 1922 | } |
b481de9c | 1923 | |
9fbab516 | 1924 | /* Set txpower levels to defaults */ |
b481de9c ZY |
1925 | scan_ch->tpc.dsp_atten = 110; |
1926 | /* scan_pwr_info->tpc.dsp_atten; */ | |
1927 | ||
1928 | /*scan_pwr_info->tpc.tx_gain; */ | |
8318d78a | 1929 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
1930 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
1931 | else { | |
1932 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); | |
1933 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use | |
9fbab516 | 1934 | * power level: |
8a1b0245 | 1935 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
b481de9c ZY |
1936 | */ |
1937 | } | |
1938 | ||
e1623446 | 1939 | IWL_DEBUG_SCAN(priv, "Scanning %d [%s %d]\n", |
b481de9c ZY |
1940 | scan_ch->channel, |
1941 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", | |
1942 | (scan_ch->type & 1) ? | |
1943 | active_dwell : passive_dwell); | |
1944 | ||
1945 | scan_ch++; | |
1946 | added++; | |
1947 | } | |
1948 | ||
e1623446 | 1949 | IWL_DEBUG_SCAN(priv, "total channels to scan %d \n", added); |
b481de9c ZY |
1950 | return added; |
1951 | } | |
1952 | ||
4a8a4322 | 1953 | static void iwl3945_init_hw_rates(struct iwl_priv *priv, |
b481de9c ZY |
1954 | struct ieee80211_rate *rates) |
1955 | { | |
1956 | int i; | |
1957 | ||
1958 | for (i = 0; i < IWL_RATE_COUNT; i++) { | |
8318d78a JB |
1959 | rates[i].bitrate = iwl3945_rates[i].ieee * 5; |
1960 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ | |
1961 | rates[i].hw_value_short = i; | |
1962 | rates[i].flags = 0; | |
d9829a67 | 1963 | if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { |
b481de9c | 1964 | /* |
8318d78a | 1965 | * If CCK != 1M then set short preamble rate flag. |
b481de9c | 1966 | */ |
bb8c093b | 1967 | rates[i].flags |= (iwl3945_rates[i].plcp == 10) ? |
8318d78a | 1968 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
b481de9c | 1969 | } |
b481de9c ZY |
1970 | } |
1971 | } | |
1972 | ||
b481de9c ZY |
1973 | /****************************************************************************** |
1974 | * | |
1975 | * uCode download functions | |
1976 | * | |
1977 | ******************************************************************************/ | |
1978 | ||
4a8a4322 | 1979 | static void iwl3945_dealloc_ucode_pci(struct iwl_priv *priv) |
b481de9c | 1980 | { |
98c92211 TW |
1981 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
1982 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
1983 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
1984 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
1985 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
1986 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
1987 | } |
1988 | ||
1989 | /** | |
bb8c093b | 1990 | * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host, |
b481de9c ZY |
1991 | * looking at all data. |
1992 | */ | |
4a8a4322 | 1993 | static int iwl3945_verify_inst_full(struct iwl_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
1994 | { |
1995 | u32 val; | |
1996 | u32 save_len = len; | |
1997 | int rc = 0; | |
1998 | u32 errcnt; | |
1999 | ||
e1623446 | 2000 | IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
b481de9c | 2001 | |
5d49f498 | 2002 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
250bdd21 | 2003 | IWL39_RTC_INST_LOWER_BOUND); |
b481de9c ZY |
2004 | |
2005 | errcnt = 0; | |
2006 | for (; len > 0; len -= sizeof(u32), image++) { | |
2007 | /* read data comes through single port, auto-incr addr */ | |
2008 | /* NOTE: Use the debugless read so we don't flood kernel log | |
2009 | * if IWL_DL_IO is set */ | |
5d49f498 | 2010 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c | 2011 | if (val != le32_to_cpu(*image)) { |
15b1687c | 2012 | IWL_ERR(priv, "uCode INST section is invalid at " |
b481de9c ZY |
2013 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
2014 | save_len - len, val, le32_to_cpu(*image)); | |
2015 | rc = -EIO; | |
2016 | errcnt++; | |
2017 | if (errcnt >= 20) | |
2018 | break; | |
2019 | } | |
2020 | } | |
2021 | ||
b481de9c ZY |
2022 | |
2023 | if (!errcnt) | |
e1623446 TW |
2024 | IWL_DEBUG_INFO(priv, |
2025 | "ucode image in INSTRUCTION memory is good\n"); | |
b481de9c ZY |
2026 | |
2027 | return rc; | |
2028 | } | |
2029 | ||
2030 | ||
2031 | /** | |
bb8c093b | 2032 | * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host, |
b481de9c ZY |
2033 | * using sample data 100 bytes apart. If these sample points are good, |
2034 | * it's a pretty good bet that everything between them is good, too. | |
2035 | */ | |
4a8a4322 | 2036 | static int iwl3945_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
2037 | { |
2038 | u32 val; | |
2039 | int rc = 0; | |
2040 | u32 errcnt = 0; | |
2041 | u32 i; | |
2042 | ||
e1623446 | 2043 | IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
b481de9c | 2044 | |
b481de9c ZY |
2045 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { |
2046 | /* read data comes through single port, auto-incr addr */ | |
2047 | /* NOTE: Use the debugless read so we don't flood kernel log | |
2048 | * if IWL_DL_IO is set */ | |
5d49f498 | 2049 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
250bdd21 | 2050 | i + IWL39_RTC_INST_LOWER_BOUND); |
5d49f498 | 2051 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c ZY |
2052 | if (val != le32_to_cpu(*image)) { |
2053 | #if 0 /* Enable this if you want to see details */ | |
15b1687c | 2054 | IWL_ERR(priv, "uCode INST section is invalid at " |
b481de9c ZY |
2055 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
2056 | i, val, *image); | |
2057 | #endif | |
2058 | rc = -EIO; | |
2059 | errcnt++; | |
2060 | if (errcnt >= 3) | |
2061 | break; | |
2062 | } | |
2063 | } | |
2064 | ||
b481de9c ZY |
2065 | return rc; |
2066 | } | |
2067 | ||
2068 | ||
2069 | /** | |
bb8c093b | 2070 | * iwl3945_verify_ucode - determine which instruction image is in SRAM, |
b481de9c ZY |
2071 | * and verify its contents |
2072 | */ | |
4a8a4322 | 2073 | static int iwl3945_verify_ucode(struct iwl_priv *priv) |
b481de9c ZY |
2074 | { |
2075 | __le32 *image; | |
2076 | u32 len; | |
2077 | int rc = 0; | |
2078 | ||
2079 | /* Try bootstrap */ | |
2080 | image = (__le32 *)priv->ucode_boot.v_addr; | |
2081 | len = priv->ucode_boot.len; | |
bb8c093b | 2082 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c | 2083 | if (rc == 0) { |
e1623446 | 2084 | IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n"); |
b481de9c ZY |
2085 | return 0; |
2086 | } | |
2087 | ||
2088 | /* Try initialize */ | |
2089 | image = (__le32 *)priv->ucode_init.v_addr; | |
2090 | len = priv->ucode_init.len; | |
bb8c093b | 2091 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c | 2092 | if (rc == 0) { |
e1623446 | 2093 | IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n"); |
b481de9c ZY |
2094 | return 0; |
2095 | } | |
2096 | ||
2097 | /* Try runtime/protocol */ | |
2098 | image = (__le32 *)priv->ucode_code.v_addr; | |
2099 | len = priv->ucode_code.len; | |
bb8c093b | 2100 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c | 2101 | if (rc == 0) { |
e1623446 | 2102 | IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n"); |
b481de9c ZY |
2103 | return 0; |
2104 | } | |
2105 | ||
15b1687c | 2106 | IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); |
b481de9c | 2107 | |
9fbab516 BC |
2108 | /* Since nothing seems to match, show first several data entries in |
2109 | * instruction SRAM, so maybe visual inspection will give a clue. | |
2110 | * Selection of bootstrap image (vs. other images) is arbitrary. */ | |
b481de9c ZY |
2111 | image = (__le32 *)priv->ucode_boot.v_addr; |
2112 | len = priv->ucode_boot.len; | |
bb8c093b | 2113 | rc = iwl3945_verify_inst_full(priv, image, len); |
b481de9c ZY |
2114 | |
2115 | return rc; | |
2116 | } | |
2117 | ||
4a8a4322 | 2118 | static void iwl3945_nic_start(struct iwl_priv *priv) |
b481de9c ZY |
2119 | { |
2120 | /* Remove all resets to allow NIC to operate */ | |
5d49f498 | 2121 | iwl_write32(priv, CSR_RESET, 0); |
b481de9c ZY |
2122 | } |
2123 | ||
2124 | /** | |
bb8c093b | 2125 | * iwl3945_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
2126 | * |
2127 | * Copy into buffers for card to fetch via bus-mastering | |
2128 | */ | |
4a8a4322 | 2129 | static int iwl3945_read_ucode(struct iwl_priv *priv) |
b481de9c | 2130 | { |
cc0f555d | 2131 | const struct iwl_ucode_header *ucode; |
a0987a8d | 2132 | int ret = -EINVAL, index; |
b481de9c ZY |
2133 | const struct firmware *ucode_raw; |
2134 | /* firmware file name contains uCode/driver compatibility version */ | |
a0987a8d RC |
2135 | const char *name_pre = priv->cfg->fw_name_pre; |
2136 | const unsigned int api_max = priv->cfg->ucode_api_max; | |
2137 | const unsigned int api_min = priv->cfg->ucode_api_min; | |
2138 | char buf[25]; | |
b481de9c ZY |
2139 | u8 *src; |
2140 | size_t len; | |
a0987a8d | 2141 | u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size; |
b481de9c ZY |
2142 | |
2143 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
2144 | * request_firmware() is synchronous, file is in memory on return. */ | |
a0987a8d RC |
2145 | for (index = api_max; index >= api_min; index--) { |
2146 | sprintf(buf, "%s%u%s", name_pre, index, ".ucode"); | |
2147 | ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev); | |
2148 | if (ret < 0) { | |
15b1687c | 2149 | IWL_ERR(priv, "%s firmware file req failed: %d\n", |
a0987a8d RC |
2150 | buf, ret); |
2151 | if (ret == -ENOENT) | |
2152 | continue; | |
2153 | else | |
2154 | goto error; | |
2155 | } else { | |
2156 | if (index < api_max) | |
15b1687c WT |
2157 | IWL_ERR(priv, "Loaded firmware %s, " |
2158 | "which is deprecated. " | |
2159 | " Please use API v%u instead.\n", | |
a0987a8d | 2160 | buf, api_max); |
e1623446 TW |
2161 | IWL_DEBUG_INFO(priv, "Got firmware '%s' file " |
2162 | "(%zd bytes) from disk\n", | |
a0987a8d RC |
2163 | buf, ucode_raw->size); |
2164 | break; | |
2165 | } | |
b481de9c ZY |
2166 | } |
2167 | ||
a0987a8d RC |
2168 | if (ret < 0) |
2169 | goto error; | |
b481de9c ZY |
2170 | |
2171 | /* Make sure that we got at least our header! */ | |
cc0f555d | 2172 | if (ucode_raw->size < priv->cfg->ops->ucode->get_header_size(1)) { |
15b1687c | 2173 | IWL_ERR(priv, "File size way too small!\n"); |
90e759d1 | 2174 | ret = -EINVAL; |
b481de9c ZY |
2175 | goto err_release; |
2176 | } | |
2177 | ||
2178 | /* Data from ucode file: header followed by uCode images */ | |
cc0f555d | 2179 | ucode = (struct iwl_ucode_header *)ucode_raw->data; |
b481de9c | 2180 | |
c02b3acd | 2181 | priv->ucode_ver = le32_to_cpu(ucode->ver); |
a0987a8d | 2182 | api_ver = IWL_UCODE_API(priv->ucode_ver); |
cc0f555d JS |
2183 | inst_size = priv->cfg->ops->ucode->get_inst_size(ucode, api_ver); |
2184 | data_size = priv->cfg->ops->ucode->get_data_size(ucode, api_ver); | |
2185 | init_size = priv->cfg->ops->ucode->get_init_size(ucode, api_ver); | |
2186 | init_data_size = | |
2187 | priv->cfg->ops->ucode->get_init_data_size(ucode, api_ver); | |
2188 | boot_size = priv->cfg->ops->ucode->get_boot_size(ucode, api_ver); | |
2189 | src = priv->cfg->ops->ucode->get_data(ucode, api_ver); | |
b481de9c | 2190 | |
a0987a8d RC |
2191 | /* api_ver should match the api version forming part of the |
2192 | * firmware filename ... but we don't check for that and only rely | |
877d0310 | 2193 | * on the API version read from firmware header from here on forward */ |
a0987a8d RC |
2194 | |
2195 | if (api_ver < api_min || api_ver > api_max) { | |
15b1687c | 2196 | IWL_ERR(priv, "Driver unable to support your firmware API. " |
a0987a8d RC |
2197 | "Driver supports v%u, firmware is v%u.\n", |
2198 | api_max, api_ver); | |
2199 | priv->ucode_ver = 0; | |
2200 | ret = -EINVAL; | |
2201 | goto err_release; | |
2202 | } | |
2203 | if (api_ver != api_max) | |
15b1687c | 2204 | IWL_ERR(priv, "Firmware has old API version. Expected %u, " |
a0987a8d RC |
2205 | "got %u. New firmware can be obtained " |
2206 | "from http://www.intellinuxwireless.org.\n", | |
2207 | api_max, api_ver); | |
2208 | ||
978785a3 TW |
2209 | IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n", |
2210 | IWL_UCODE_MAJOR(priv->ucode_ver), | |
2211 | IWL_UCODE_MINOR(priv->ucode_ver), | |
2212 | IWL_UCODE_API(priv->ucode_ver), | |
2213 | IWL_UCODE_SERIAL(priv->ucode_ver)); | |
2214 | ||
5ebeb5a6 RC |
2215 | snprintf(priv->hw->wiphy->fw_version, |
2216 | sizeof(priv->hw->wiphy->fw_version), | |
2217 | "%u.%u.%u.%u", | |
2218 | IWL_UCODE_MAJOR(priv->ucode_ver), | |
2219 | IWL_UCODE_MINOR(priv->ucode_ver), | |
2220 | IWL_UCODE_API(priv->ucode_ver), | |
2221 | IWL_UCODE_SERIAL(priv->ucode_ver)); | |
2222 | ||
e1623446 | 2223 | IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", |
a0987a8d | 2224 | priv->ucode_ver); |
e1623446 TW |
2225 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n", |
2226 | inst_size); | |
2227 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %u\n", | |
2228 | data_size); | |
2229 | IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %u\n", | |
2230 | init_size); | |
2231 | IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %u\n", | |
2232 | init_data_size); | |
2233 | IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n", | |
2234 | boot_size); | |
b481de9c | 2235 | |
a0987a8d | 2236 | |
b481de9c | 2237 | /* Verify size of file vs. image size info in file's header */ |
cc0f555d | 2238 | if (ucode_raw->size != priv->cfg->ops->ucode->get_header_size(api_ver) + |
b481de9c ZY |
2239 | inst_size + data_size + init_size + |
2240 | init_data_size + boot_size) { | |
2241 | ||
cc0f555d JS |
2242 | IWL_DEBUG_INFO(priv, |
2243 | "uCode file size %zd does not match expected size\n", | |
2244 | ucode_raw->size); | |
90e759d1 | 2245 | ret = -EINVAL; |
b481de9c ZY |
2246 | goto err_release; |
2247 | } | |
2248 | ||
2249 | /* Verify that uCode images will fit in card's SRAM */ | |
250bdd21 | 2250 | if (inst_size > IWL39_MAX_INST_SIZE) { |
e1623446 | 2251 | IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n", |
90e759d1 TW |
2252 | inst_size); |
2253 | ret = -EINVAL; | |
b481de9c ZY |
2254 | goto err_release; |
2255 | } | |
2256 | ||
250bdd21 | 2257 | if (data_size > IWL39_MAX_DATA_SIZE) { |
e1623446 | 2258 | IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n", |
90e759d1 TW |
2259 | data_size); |
2260 | ret = -EINVAL; | |
b481de9c ZY |
2261 | goto err_release; |
2262 | } | |
250bdd21 | 2263 | if (init_size > IWL39_MAX_INST_SIZE) { |
e1623446 TW |
2264 | IWL_DEBUG_INFO(priv, |
2265 | "uCode init instr len %d too large to fit in\n", | |
90e759d1 TW |
2266 | init_size); |
2267 | ret = -EINVAL; | |
b481de9c ZY |
2268 | goto err_release; |
2269 | } | |
250bdd21 | 2270 | if (init_data_size > IWL39_MAX_DATA_SIZE) { |
e1623446 TW |
2271 | IWL_DEBUG_INFO(priv, |
2272 | "uCode init data len %d too large to fit in\n", | |
90e759d1 TW |
2273 | init_data_size); |
2274 | ret = -EINVAL; | |
b481de9c ZY |
2275 | goto err_release; |
2276 | } | |
250bdd21 | 2277 | if (boot_size > IWL39_MAX_BSM_SIZE) { |
e1623446 TW |
2278 | IWL_DEBUG_INFO(priv, |
2279 | "uCode boot instr len %d too large to fit in\n", | |
90e759d1 TW |
2280 | boot_size); |
2281 | ret = -EINVAL; | |
b481de9c ZY |
2282 | goto err_release; |
2283 | } | |
2284 | ||
2285 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
2286 | ||
2287 | /* Runtime instructions and 2 copies of data: | |
2288 | * 1) unmodified from disk | |
2289 | * 2) backup cache for save/restore during power-downs */ | |
2290 | priv->ucode_code.len = inst_size; | |
98c92211 | 2291 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
2292 | |
2293 | priv->ucode_data.len = data_size; | |
98c92211 | 2294 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
2295 | |
2296 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 2297 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c | 2298 | |
90e759d1 TW |
2299 | if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr || |
2300 | !priv->ucode_data_backup.v_addr) | |
2301 | goto err_pci_alloc; | |
b481de9c ZY |
2302 | |
2303 | /* Initialization instructions and data */ | |
90e759d1 TW |
2304 | if (init_size && init_data_size) { |
2305 | priv->ucode_init.len = init_size; | |
98c92211 | 2306 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
2307 | |
2308 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 2309 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
2310 | |
2311 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
2312 | goto err_pci_alloc; | |
2313 | } | |
b481de9c ZY |
2314 | |
2315 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
2316 | if (boot_size) { |
2317 | priv->ucode_boot.len = boot_size; | |
98c92211 | 2318 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 2319 | |
90e759d1 TW |
2320 | if (!priv->ucode_boot.v_addr) |
2321 | goto err_pci_alloc; | |
2322 | } | |
b481de9c ZY |
2323 | |
2324 | /* Copy images into buffers for card's bus-master reads ... */ | |
2325 | ||
2326 | /* Runtime instructions (first block of data in file) */ | |
cc0f555d | 2327 | len = inst_size; |
e1623446 TW |
2328 | IWL_DEBUG_INFO(priv, |
2329 | "Copying (but not loading) uCode instr len %zd\n", len); | |
b481de9c | 2330 | memcpy(priv->ucode_code.v_addr, src, len); |
cc0f555d JS |
2331 | src += len; |
2332 | ||
e1623446 | 2333 | IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", |
b481de9c ZY |
2334 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); |
2335 | ||
2336 | /* Runtime data (2nd block) | |
bb8c093b | 2337 | * NOTE: Copy into backup buffer will be done in iwl3945_up() */ |
cc0f555d | 2338 | len = data_size; |
e1623446 TW |
2339 | IWL_DEBUG_INFO(priv, |
2340 | "Copying (but not loading) uCode data len %zd\n", len); | |
b481de9c ZY |
2341 | memcpy(priv->ucode_data.v_addr, src, len); |
2342 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
cc0f555d | 2343 | src += len; |
b481de9c ZY |
2344 | |
2345 | /* Initialization instructions (3rd block) */ | |
2346 | if (init_size) { | |
cc0f555d | 2347 | len = init_size; |
e1623446 TW |
2348 | IWL_DEBUG_INFO(priv, |
2349 | "Copying (but not loading) init instr len %zd\n", len); | |
b481de9c | 2350 | memcpy(priv->ucode_init.v_addr, src, len); |
cc0f555d | 2351 | src += len; |
b481de9c ZY |
2352 | } |
2353 | ||
2354 | /* Initialization data (4th block) */ | |
2355 | if (init_data_size) { | |
cc0f555d | 2356 | len = init_data_size; |
e1623446 TW |
2357 | IWL_DEBUG_INFO(priv, |
2358 | "Copying (but not loading) init data len %zd\n", len); | |
b481de9c | 2359 | memcpy(priv->ucode_init_data.v_addr, src, len); |
cc0f555d | 2360 | src += len; |
b481de9c ZY |
2361 | } |
2362 | ||
2363 | /* Bootstrap instructions (5th block) */ | |
cc0f555d | 2364 | len = boot_size; |
e1623446 TW |
2365 | IWL_DEBUG_INFO(priv, |
2366 | "Copying (but not loading) boot instr len %zd\n", len); | |
b481de9c ZY |
2367 | memcpy(priv->ucode_boot.v_addr, src, len); |
2368 | ||
2369 | /* We have our copies now, allow OS release its copies */ | |
2370 | release_firmware(ucode_raw); | |
2371 | return 0; | |
2372 | ||
2373 | err_pci_alloc: | |
15b1687c | 2374 | IWL_ERR(priv, "failed to allocate pci memory\n"); |
90e759d1 | 2375 | ret = -ENOMEM; |
bb8c093b | 2376 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
2377 | |
2378 | err_release: | |
2379 | release_firmware(ucode_raw); | |
2380 | ||
2381 | error: | |
90e759d1 | 2382 | return ret; |
b481de9c ZY |
2383 | } |
2384 | ||
2385 | ||
2386 | /** | |
bb8c093b | 2387 | * iwl3945_set_ucode_ptrs - Set uCode address location |
b481de9c ZY |
2388 | * |
2389 | * Tell initialization uCode where to find runtime uCode. | |
2390 | * | |
2391 | * BSM registers initially contain pointers to initialization uCode. | |
2392 | * We need to replace them to load runtime uCode inst and data, | |
2393 | * and to save runtime data when powering down. | |
2394 | */ | |
4a8a4322 | 2395 | static int iwl3945_set_ucode_ptrs(struct iwl_priv *priv) |
b481de9c ZY |
2396 | { |
2397 | dma_addr_t pinst; | |
2398 | dma_addr_t pdata; | |
b481de9c ZY |
2399 | |
2400 | /* bits 31:0 for 3945 */ | |
2401 | pinst = priv->ucode_code.p_addr; | |
2402 | pdata = priv->ucode_data_backup.p_addr; | |
2403 | ||
b481de9c | 2404 | /* Tell bootstrap uCode where to find image to load */ |
5d49f498 AK |
2405 | iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
2406 | iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
2407 | iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, | |
b481de9c ZY |
2408 | priv->ucode_data.len); |
2409 | ||
a96a27f9 | 2410 | /* Inst byte count must be last to set up, bit 31 signals uCode |
b481de9c | 2411 | * that all new ptr/size info is in place */ |
5d49f498 | 2412 | iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, |
b481de9c ZY |
2413 | priv->ucode_code.len | BSM_DRAM_INST_LOAD); |
2414 | ||
e1623446 | 2415 | IWL_DEBUG_INFO(priv, "Runtime uCode pointers are set.\n"); |
b481de9c | 2416 | |
a8b50a0a | 2417 | return 0; |
b481de9c ZY |
2418 | } |
2419 | ||
2420 | /** | |
bb8c093b | 2421 | * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received |
b481de9c ZY |
2422 | * |
2423 | * Called after REPLY_ALIVE notification received from "initialize" uCode. | |
2424 | * | |
b481de9c | 2425 | * Tell "initialize" uCode to go ahead and load the runtime uCode. |
9fbab516 | 2426 | */ |
4a8a4322 | 2427 | static void iwl3945_init_alive_start(struct iwl_priv *priv) |
b481de9c ZY |
2428 | { |
2429 | /* Check alive response for "valid" sign from uCode */ | |
2430 | if (priv->card_alive_init.is_valid != UCODE_VALID_OK) { | |
2431 | /* We had an error bringing up the hardware, so take it | |
2432 | * all the way back down so we can try again */ | |
e1623446 | 2433 | IWL_DEBUG_INFO(priv, "Initialize Alive failed.\n"); |
b481de9c ZY |
2434 | goto restart; |
2435 | } | |
2436 | ||
2437 | /* Bootstrap uCode has loaded initialize uCode ... verify inst image. | |
2438 | * This is a paranoid check, because we would not have gotten the | |
2439 | * "initialize" alive if code weren't properly loaded. */ | |
bb8c093b | 2440 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
2441 | /* Runtime instruction load was bad; |
2442 | * take it all the way back down so we can try again */ | |
e1623446 | 2443 | IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n"); |
b481de9c ZY |
2444 | goto restart; |
2445 | } | |
2446 | ||
2447 | /* Send pointers to protocol/runtime uCode image ... init code will | |
2448 | * load and launch runtime uCode, which will send us another "Alive" | |
2449 | * notification. */ | |
e1623446 | 2450 | IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); |
bb8c093b | 2451 | if (iwl3945_set_ucode_ptrs(priv)) { |
b481de9c ZY |
2452 | /* Runtime instruction load won't happen; |
2453 | * take it all the way back down so we can try again */ | |
e1623446 | 2454 | IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n"); |
b481de9c ZY |
2455 | goto restart; |
2456 | } | |
2457 | return; | |
2458 | ||
2459 | restart: | |
2460 | queue_work(priv->workqueue, &priv->restart); | |
2461 | } | |
2462 | ||
b481de9c | 2463 | /** |
bb8c093b | 2464 | * iwl3945_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 2465 | * from protocol/runtime uCode (initialization uCode's |
bb8c093b | 2466 | * Alive gets handled by iwl3945_init_alive_start()). |
b481de9c | 2467 | */ |
4a8a4322 | 2468 | static void iwl3945_alive_start(struct iwl_priv *priv) |
b481de9c | 2469 | { |
b481de9c ZY |
2470 | int thermal_spin = 0; |
2471 | u32 rfkill; | |
2472 | ||
e1623446 | 2473 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
b481de9c ZY |
2474 | |
2475 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
2476 | /* We had an error bringing up the hardware, so take it | |
2477 | * all the way back down so we can try again */ | |
e1623446 | 2478 | IWL_DEBUG_INFO(priv, "Alive failed.\n"); |
b481de9c ZY |
2479 | goto restart; |
2480 | } | |
2481 | ||
2482 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
2483 | * This is a paranoid check, because we would not have gotten the | |
2484 | * "runtime" alive if code weren't properly loaded. */ | |
bb8c093b | 2485 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
2486 | /* Runtime instruction load was bad; |
2487 | * take it all the way back down so we can try again */ | |
e1623446 | 2488 | IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n"); |
b481de9c ZY |
2489 | goto restart; |
2490 | } | |
2491 | ||
c587de0b | 2492 | iwl_clear_stations_table(priv); |
b481de9c | 2493 | |
5d49f498 | 2494 | rfkill = iwl_read_prph(priv, APMG_RFKILL_REG); |
e1623446 | 2495 | IWL_DEBUG_INFO(priv, "RFKILL status: 0x%x\n", rfkill); |
b481de9c ZY |
2496 | |
2497 | if (rfkill & 0x1) { | |
2498 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
a96a27f9 | 2499 | /* if RFKILL is not on, then wait for thermal |
b481de9c | 2500 | * sensor in adapter to kick in */ |
bb8c093b | 2501 | while (iwl3945_hw_get_temperature(priv) == 0) { |
b481de9c ZY |
2502 | thermal_spin++; |
2503 | udelay(10); | |
2504 | } | |
2505 | ||
2506 | if (thermal_spin) | |
e1623446 | 2507 | IWL_DEBUG_INFO(priv, "Thermal calibration took %dus\n", |
b481de9c ZY |
2508 | thermal_spin * 10); |
2509 | } else | |
2510 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
2511 | ||
9fbab516 | 2512 | /* After the ALIVE response, we can send commands to 3945 uCode */ |
b481de9c ZY |
2513 | set_bit(STATUS_ALIVE, &priv->status); |
2514 | ||
775a6e27 | 2515 | if (iwl_is_rfkill(priv)) |
b481de9c ZY |
2516 | return; |
2517 | ||
36d6825b | 2518 | ieee80211_wake_queues(priv->hw); |
b481de9c ZY |
2519 | |
2520 | priv->active_rate = priv->rates_mask; | |
2521 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
2522 | ||
4d6ccbf5 | 2523 | iwl_power_update_mode(priv, true); |
b481de9c | 2524 | |
8ccde88a | 2525 | if (iwl_is_associated(priv)) { |
bb8c093b | 2526 | struct iwl3945_rxon_cmd *active_rxon = |
8ccde88a | 2527 | (struct iwl3945_rxon_cmd *)(&priv->active_rxon); |
b481de9c | 2528 | |
8a9b9926 | 2529 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
b481de9c ZY |
2530 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
2531 | } else { | |
2532 | /* Initialize our rx_config data */ | |
8ccde88a | 2533 | iwl_connection_init_rx_config(priv, priv->iw_mode); |
b481de9c ZY |
2534 | } |
2535 | ||
9fbab516 | 2536 | /* Configure Bluetooth device coexistence support */ |
17f841cd | 2537 | iwl_send_bt_config(priv); |
b481de9c ZY |
2538 | |
2539 | /* Configure the adapter for unassociated operation */ | |
e0158e61 | 2540 | iwlcore_commit_rxon(priv); |
b481de9c | 2541 | |
b481de9c ZY |
2542 | iwl3945_reg_txpower_periodic(priv); |
2543 | ||
e932a609 | 2544 | iwl_leds_init(priv); |
fe00b5a5 | 2545 | |
e1623446 | 2546 | IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); |
a9f46786 | 2547 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 2548 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c | 2549 | |
9bdf5eca MA |
2550 | /* reassociate for ADHOC mode */ |
2551 | if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) { | |
2552 | struct sk_buff *beacon = ieee80211_beacon_get(priv->hw, | |
2553 | priv->vif); | |
2554 | if (beacon) | |
9944b938 | 2555 | iwl_mac_beacon_update(priv->hw, beacon); |
9bdf5eca MA |
2556 | } |
2557 | ||
f45c2714 | 2558 | if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status)) |
727882d6 | 2559 | iwl_set_mode(priv, priv->iw_mode); |
f45c2714 | 2560 | |
b481de9c ZY |
2561 | return; |
2562 | ||
2563 | restart: | |
2564 | queue_work(priv->workqueue, &priv->restart); | |
2565 | } | |
2566 | ||
4a8a4322 | 2567 | static void iwl3945_cancel_deferred_work(struct iwl_priv *priv); |
b481de9c | 2568 | |
4a8a4322 | 2569 | static void __iwl3945_down(struct iwl_priv *priv) |
b481de9c ZY |
2570 | { |
2571 | unsigned long flags; | |
2572 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
2573 | struct ieee80211_conf *conf = NULL; | |
2574 | ||
e1623446 | 2575 | IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); |
b481de9c ZY |
2576 | |
2577 | conf = ieee80211_get_hw_conf(priv->hw); | |
2578 | ||
2579 | if (!exit_pending) | |
2580 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
2581 | ||
c587de0b | 2582 | iwl_clear_stations_table(priv); |
b481de9c ZY |
2583 | |
2584 | /* Unblock any waiting calls */ | |
2585 | wake_up_interruptible_all(&priv->wait_command_queue); | |
2586 | ||
b481de9c ZY |
2587 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
2588 | * exiting the module */ | |
2589 | if (!exit_pending) | |
2590 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
2591 | ||
2592 | /* stop and reset the on-board processor */ | |
5d49f498 | 2593 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
2594 | |
2595 | /* tell the device to stop sending interrupts */ | |
0359facc | 2596 | spin_lock_irqsave(&priv->lock, flags); |
ed3b932e | 2597 | iwl_disable_interrupts(priv); |
0359facc MA |
2598 | spin_unlock_irqrestore(&priv->lock, flags); |
2599 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
2600 | |
2601 | if (priv->mac80211_registered) | |
2602 | ieee80211_stop_queues(priv->hw); | |
2603 | ||
bb8c093b | 2604 | /* If we have not previously called iwl3945_init() then |
6da3a13e | 2605 | * clear all bits but the RF Kill bits and return */ |
775a6e27 | 2606 | if (!iwl_is_init(priv)) { |
b481de9c ZY |
2607 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
2608 | STATUS_RF_KILL_HW | | |
9788864e RC |
2609 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
2610 | STATUS_GEO_CONFIGURED | | |
ebef2008 AK |
2611 | test_bit(STATUS_EXIT_PENDING, &priv->status) << |
2612 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
2613 | goto exit; |
2614 | } | |
2615 | ||
6da3a13e | 2616 | /* ...otherwise clear out all the status bits but the RF Kill |
a60e77e5 | 2617 | * bit and continue taking the NIC down. */ |
b481de9c ZY |
2618 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << |
2619 | STATUS_RF_KILL_HW | | |
9788864e RC |
2620 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
2621 | STATUS_GEO_CONFIGURED | | |
b481de9c | 2622 | test_bit(STATUS_FW_ERROR, &priv->status) << |
ebef2008 AK |
2623 | STATUS_FW_ERROR | |
2624 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
2625 | STATUS_EXIT_PENDING; | |
b481de9c | 2626 | |
bb8c093b CH |
2627 | iwl3945_hw_txq_ctx_stop(priv); |
2628 | iwl3945_hw_rxq_stop(priv); | |
b481de9c | 2629 | |
309e731a BC |
2630 | /* Power-down device's busmaster DMA clocks */ |
2631 | iwl_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); | |
b481de9c ZY |
2632 | udelay(5); |
2633 | ||
4d2ccdb9 BC |
2634 | /* Stop the device, and put it in low power state */ |
2635 | priv->cfg->ops->lib->apm_ops.stop(priv); | |
e9414b6b | 2636 | |
b481de9c | 2637 | exit: |
3d24a9f7 | 2638 | memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
2639 | |
2640 | if (priv->ibss_beacon) | |
2641 | dev_kfree_skb(priv->ibss_beacon); | |
2642 | priv->ibss_beacon = NULL; | |
2643 | ||
2644 | /* clear out any free frames */ | |
bb8c093b | 2645 | iwl3945_clear_free_frames(priv); |
b481de9c ZY |
2646 | } |
2647 | ||
4a8a4322 | 2648 | static void iwl3945_down(struct iwl_priv *priv) |
b481de9c ZY |
2649 | { |
2650 | mutex_lock(&priv->mutex); | |
bb8c093b | 2651 | __iwl3945_down(priv); |
b481de9c | 2652 | mutex_unlock(&priv->mutex); |
b24d22b1 | 2653 | |
bb8c093b | 2654 | iwl3945_cancel_deferred_work(priv); |
b481de9c ZY |
2655 | } |
2656 | ||
2657 | #define MAX_HW_RESTARTS 5 | |
2658 | ||
4a8a4322 | 2659 | static int __iwl3945_up(struct iwl_priv *priv) |
b481de9c ZY |
2660 | { |
2661 | int rc, i; | |
2662 | ||
2663 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
39aadf8c | 2664 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
b481de9c ZY |
2665 | return -EIO; |
2666 | } | |
2667 | ||
e903fbd4 | 2668 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
15b1687c | 2669 | IWL_ERR(priv, "ucode not available for device bring up\n"); |
e903fbd4 RC |
2670 | return -EIO; |
2671 | } | |
2672 | ||
e655b9f0 | 2673 | /* If platform's RF_KILL switch is NOT set to KILL */ |
5d49f498 | 2674 | if (iwl_read32(priv, CSR_GP_CNTRL) & |
e655b9f0 ZY |
2675 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
2676 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
2677 | else { | |
2678 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
6da3a13e WYG |
2679 | IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n"); |
2680 | return -ENODEV; | |
b481de9c | 2681 | } |
80fcc9e2 | 2682 | |
5d49f498 | 2683 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 2684 | |
bb8c093b | 2685 | rc = iwl3945_hw_nic_init(priv); |
b481de9c | 2686 | if (rc) { |
15b1687c | 2687 | IWL_ERR(priv, "Unable to int nic\n"); |
b481de9c ZY |
2688 | return rc; |
2689 | } | |
2690 | ||
2691 | /* make sure rfkill handshake bits are cleared */ | |
5d49f498 AK |
2692 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
2693 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
2694 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
2695 | ||
2696 | /* clear (again), then enable host interrupts */ | |
5d49f498 | 2697 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
ed3b932e | 2698 | iwl_enable_interrupts(priv); |
b481de9c ZY |
2699 | |
2700 | /* really make sure rfkill handshake bits are cleared */ | |
5d49f498 AK |
2701 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
2702 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
2703 | |
2704 | /* Copy original ucode data image from disk into backup cache. | |
2705 | * This will be used to initialize the on-board processor's | |
2706 | * data SRAM for a clean start when the runtime program first loads. */ | |
2707 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 2708 | priv->ucode_data.len); |
b481de9c | 2709 | |
e655b9f0 ZY |
2710 | /* We return success when we resume from suspend and rf_kill is on. */ |
2711 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
2712 | return 0; | |
2713 | ||
b481de9c ZY |
2714 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
2715 | ||
c587de0b | 2716 | iwl_clear_stations_table(priv); |
b481de9c ZY |
2717 | |
2718 | /* load bootstrap state machine, | |
2719 | * load bootstrap program into processor's memory, | |
2720 | * prepare to load the "initialize" uCode */ | |
0164b9b4 | 2721 | priv->cfg->ops->lib->load_ucode(priv); |
b481de9c ZY |
2722 | |
2723 | if (rc) { | |
15b1687c WT |
2724 | IWL_ERR(priv, |
2725 | "Unable to set up bootstrap uCode: %d\n", rc); | |
b481de9c ZY |
2726 | continue; |
2727 | } | |
2728 | ||
2729 | /* start card; "initialize" will load runtime ucode */ | |
bb8c093b | 2730 | iwl3945_nic_start(priv); |
b481de9c | 2731 | |
e1623446 | 2732 | IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n"); |
b481de9c ZY |
2733 | |
2734 | return 0; | |
2735 | } | |
2736 | ||
2737 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
bb8c093b | 2738 | __iwl3945_down(priv); |
ebef2008 | 2739 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c ZY |
2740 | |
2741 | /* tried to restart and config the device for as long as our | |
2742 | * patience could withstand */ | |
15b1687c | 2743 | IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i); |
b481de9c ZY |
2744 | return -EIO; |
2745 | } | |
2746 | ||
2747 | ||
2748 | /***************************************************************************** | |
2749 | * | |
2750 | * Workqueue callbacks | |
2751 | * | |
2752 | *****************************************************************************/ | |
2753 | ||
bb8c093b | 2754 | static void iwl3945_bg_init_alive_start(struct work_struct *data) |
b481de9c | 2755 | { |
4a8a4322 AK |
2756 | struct iwl_priv *priv = |
2757 | container_of(data, struct iwl_priv, init_alive_start.work); | |
b481de9c ZY |
2758 | |
2759 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2760 | return; | |
2761 | ||
2762 | mutex_lock(&priv->mutex); | |
bb8c093b | 2763 | iwl3945_init_alive_start(priv); |
b481de9c ZY |
2764 | mutex_unlock(&priv->mutex); |
2765 | } | |
2766 | ||
bb8c093b | 2767 | static void iwl3945_bg_alive_start(struct work_struct *data) |
b481de9c | 2768 | { |
4a8a4322 AK |
2769 | struct iwl_priv *priv = |
2770 | container_of(data, struct iwl_priv, alive_start.work); | |
b481de9c ZY |
2771 | |
2772 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2773 | return; | |
2774 | ||
2775 | mutex_lock(&priv->mutex); | |
bb8c093b | 2776 | iwl3945_alive_start(priv); |
b481de9c ZY |
2777 | mutex_unlock(&priv->mutex); |
2778 | } | |
2779 | ||
743cdf1b BC |
2780 | /* |
2781 | * 3945 cannot interrupt driver when hardware rf kill switch toggles; | |
2782 | * driver must poll CSR_GP_CNTRL_REG register for change. This register | |
2783 | * *is* readable even when device has been SW_RESET into low power mode | |
2784 | * (e.g. during RF KILL). | |
2785 | */ | |
2663516d HS |
2786 | static void iwl3945_rfkill_poll(struct work_struct *data) |
2787 | { | |
2788 | struct iwl_priv *priv = | |
2789 | container_of(data, struct iwl_priv, rfkill_poll.work); | |
743cdf1b BC |
2790 | bool old_rfkill = test_bit(STATUS_RF_KILL_HW, &priv->status); |
2791 | bool new_rfkill = !(iwl_read32(priv, CSR_GP_CNTRL) | |
2792 | & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW); | |
2663516d | 2793 | |
743cdf1b BC |
2794 | if (new_rfkill != old_rfkill) { |
2795 | if (new_rfkill) | |
2796 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
2797 | else | |
2798 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
2663516d | 2799 | |
743cdf1b BC |
2800 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, new_rfkill); |
2801 | ||
2802 | IWL_DEBUG_RF_KILL(priv, "RF_KILL bit toggled to %s.\n", | |
2803 | new_rfkill ? "disable radio" : "enable radio"); | |
2804 | } | |
2663516d | 2805 | |
743cdf1b BC |
2806 | /* Keep this running, even if radio now enabled. This will be |
2807 | * cancelled in mac_start() if system decides to start again */ | |
2663516d HS |
2808 | queue_delayed_work(priv->workqueue, &priv->rfkill_poll, |
2809 | round_jiffies_relative(2 * HZ)); | |
2810 | ||
2811 | } | |
2812 | ||
b481de9c | 2813 | #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ) |
bb8c093b | 2814 | static void iwl3945_bg_request_scan(struct work_struct *data) |
b481de9c | 2815 | { |
4a8a4322 AK |
2816 | struct iwl_priv *priv = |
2817 | container_of(data, struct iwl_priv, request_scan); | |
c2d79b48 | 2818 | struct iwl_host_cmd cmd = { |
b481de9c | 2819 | .id = REPLY_SCAN_CMD, |
bb8c093b | 2820 | .len = sizeof(struct iwl3945_scan_cmd), |
c2acea8e | 2821 | .flags = CMD_SIZE_HUGE, |
b481de9c ZY |
2822 | }; |
2823 | int rc = 0; | |
bb8c093b | 2824 | struct iwl3945_scan_cmd *scan; |
b481de9c | 2825 | struct ieee80211_conf *conf = NULL; |
1ecf9fc1 | 2826 | u8 n_probes = 0; |
8318d78a | 2827 | enum ieee80211_band band; |
1ecf9fc1 | 2828 | bool is_active = false; |
b481de9c ZY |
2829 | |
2830 | conf = ieee80211_get_hw_conf(priv->hw); | |
2831 | ||
2832 | mutex_lock(&priv->mutex); | |
2833 | ||
fbc9f97b RC |
2834 | cancel_delayed_work(&priv->scan_check); |
2835 | ||
775a6e27 | 2836 | if (!iwl_is_ready(priv)) { |
39aadf8c | 2837 | IWL_WARN(priv, "request scan called when driver not ready.\n"); |
b481de9c ZY |
2838 | goto done; |
2839 | } | |
2840 | ||
a96a27f9 | 2841 | /* Make sure the scan wasn't canceled before this queued work |
b481de9c ZY |
2842 | * was given the chance to run... */ |
2843 | if (!test_bit(STATUS_SCANNING, &priv->status)) | |
2844 | goto done; | |
2845 | ||
2846 | /* This should never be called or scheduled if there is currently | |
2847 | * a scan active in the hardware. */ | |
2848 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { | |
e1623446 TW |
2849 | IWL_DEBUG_INFO(priv, "Multiple concurrent scan requests " |
2850 | "Ignoring second request.\n"); | |
b481de9c ZY |
2851 | rc = -EIO; |
2852 | goto done; | |
2853 | } | |
2854 | ||
2855 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
e1623446 | 2856 | IWL_DEBUG_SCAN(priv, "Aborting scan due to device shutdown\n"); |
b481de9c ZY |
2857 | goto done; |
2858 | } | |
2859 | ||
2860 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
e1623446 TW |
2861 | IWL_DEBUG_HC(priv, |
2862 | "Scan request while abort pending. Queuing.\n"); | |
b481de9c ZY |
2863 | goto done; |
2864 | } | |
2865 | ||
775a6e27 | 2866 | if (iwl_is_rfkill(priv)) { |
e1623446 | 2867 | IWL_DEBUG_HC(priv, "Aborting scan due to RF Kill activation\n"); |
b481de9c ZY |
2868 | goto done; |
2869 | } | |
2870 | ||
2871 | if (!test_bit(STATUS_READY, &priv->status)) { | |
e1623446 TW |
2872 | IWL_DEBUG_HC(priv, |
2873 | "Scan request while uninitialized. Queuing.\n"); | |
b481de9c ZY |
2874 | goto done; |
2875 | } | |
2876 | ||
2877 | if (!priv->scan_bands) { | |
e1623446 | 2878 | IWL_DEBUG_HC(priv, "Aborting scan due to no requested bands\n"); |
b481de9c ZY |
2879 | goto done; |
2880 | } | |
2881 | ||
805cee5b WT |
2882 | if (!priv->scan) { |
2883 | priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) + | |
b481de9c | 2884 | IWL_MAX_SCAN_SIZE, GFP_KERNEL); |
805cee5b | 2885 | if (!priv->scan) { |
b481de9c ZY |
2886 | rc = -ENOMEM; |
2887 | goto done; | |
2888 | } | |
2889 | } | |
805cee5b | 2890 | scan = priv->scan; |
bb8c093b | 2891 | memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE); |
b481de9c ZY |
2892 | |
2893 | scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; | |
2894 | scan->quiet_time = IWL_ACTIVE_QUIET_TIME; | |
2895 | ||
8ccde88a | 2896 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
2897 | u16 interval = 0; |
2898 | u32 extra; | |
2899 | u32 suspend_time = 100; | |
2900 | u32 scan_suspend_time = 100; | |
2901 | unsigned long flags; | |
2902 | ||
e1623446 | 2903 | IWL_DEBUG_INFO(priv, "Scanning while associated...\n"); |
b481de9c ZY |
2904 | |
2905 | spin_lock_irqsave(&priv->lock, flags); | |
2906 | interval = priv->beacon_int; | |
2907 | spin_unlock_irqrestore(&priv->lock, flags); | |
2908 | ||
2909 | scan->suspend_time = 0; | |
15e869d8 | 2910 | scan->max_out_time = cpu_to_le32(200 * 1024); |
b481de9c ZY |
2911 | if (!interval) |
2912 | interval = suspend_time; | |
2913 | /* | |
2914 | * suspend time format: | |
2915 | * 0-19: beacon interval in usec (time before exec.) | |
2916 | * 20-23: 0 | |
2917 | * 24-31: number of beacons (suspend between channels) | |
2918 | */ | |
2919 | ||
2920 | extra = (suspend_time / interval) << 24; | |
2921 | scan_suspend_time = 0xFF0FFFFF & | |
2922 | (extra | ((suspend_time % interval) * 1024)); | |
2923 | ||
2924 | scan->suspend_time = cpu_to_le32(scan_suspend_time); | |
e1623446 | 2925 | IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n", |
b481de9c ZY |
2926 | scan_suspend_time, interval); |
2927 | } | |
2928 | ||
1ecf9fc1 JB |
2929 | if (priv->scan_request->n_ssids) { |
2930 | int i, p = 0; | |
2931 | IWL_DEBUG_SCAN(priv, "Kicking off active scan\n"); | |
2932 | for (i = 0; i < priv->scan_request->n_ssids; i++) { | |
2933 | /* always does wildcard anyway */ | |
2934 | if (!priv->scan_request->ssids[i].ssid_len) | |
2935 | continue; | |
2936 | scan->direct_scan[p].id = WLAN_EID_SSID; | |
2937 | scan->direct_scan[p].len = | |
2938 | priv->scan_request->ssids[i].ssid_len; | |
2939 | memcpy(scan->direct_scan[p].ssid, | |
2940 | priv->scan_request->ssids[i].ssid, | |
2941 | priv->scan_request->ssids[i].ssid_len); | |
2942 | n_probes++; | |
2943 | p++; | |
2944 | } | |
2945 | is_active = true; | |
f9340520 | 2946 | } else |
1ecf9fc1 | 2947 | IWL_DEBUG_SCAN(priv, "Kicking off passive scan.\n"); |
b481de9c ZY |
2948 | |
2949 | /* We don't build a direct scan probe request; the uCode will do | |
2950 | * that based on the direct_mask added to each channel entry */ | |
b481de9c | 2951 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
3832ec9d | 2952 | scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id; |
b481de9c ZY |
2953 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
2954 | ||
2955 | /* flags + rate selection */ | |
2956 | ||
66b5004d | 2957 | if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) { |
b481de9c ZY |
2958 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; |
2959 | scan->tx_cmd.rate = IWL_RATE_1M_PLCP; | |
2960 | scan->good_CRC_th = 0; | |
8318d78a | 2961 | band = IEEE80211_BAND_2GHZ; |
66b5004d | 2962 | } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) { |
b481de9c | 2963 | scan->tx_cmd.rate = IWL_RATE_6M_PLCP; |
b097ad29 JB |
2964 | /* |
2965 | * If active scaning is requested but a certain channel | |
2966 | * is marked passive, we can do active scanning if we | |
2967 | * detect transmissions. | |
2968 | */ | |
2969 | scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH : 0; | |
8318d78a | 2970 | band = IEEE80211_BAND_5GHZ; |
66b5004d | 2971 | } else { |
39aadf8c | 2972 | IWL_WARN(priv, "Invalid scan band count\n"); |
b481de9c ZY |
2973 | goto done; |
2974 | } | |
2975 | ||
77fecfb8 | 2976 | scan->tx_cmd.len = cpu_to_le16( |
1ecf9fc1 JB |
2977 | iwl_fill_probe_req(priv, |
2978 | (struct ieee80211_mgmt *)scan->data, | |
2979 | priv->scan_request->ie, | |
2980 | priv->scan_request->ie_len, | |
2981 | IWL_MAX_SCAN_SIZE - sizeof(*scan))); | |
77fecfb8 | 2982 | |
b481de9c ZY |
2983 | /* select Rx antennas */ |
2984 | scan->flags |= iwl3945_get_antenna_flags(priv); | |
2985 | ||
279b05d4 | 2986 | if (iwl_is_monitor_mode(priv)) |
b481de9c ZY |
2987 | scan->filter_flags = RXON_FILTER_PROMISC_MSK; |
2988 | ||
f9340520 | 2989 | scan->channel_count = |
1ecf9fc1 | 2990 | iwl3945_get_channels_for_scan(priv, band, is_active, n_probes, |
f9340520 | 2991 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); |
b481de9c | 2992 | |
14b54336 | 2993 | if (scan->channel_count == 0) { |
e1623446 | 2994 | IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count); |
14b54336 RC |
2995 | goto done; |
2996 | } | |
2997 | ||
b481de9c | 2998 | cmd.len += le16_to_cpu(scan->tx_cmd.len) + |
bb8c093b | 2999 | scan->channel_count * sizeof(struct iwl3945_scan_channel); |
b481de9c ZY |
3000 | cmd.data = scan; |
3001 | scan->len = cpu_to_le16(cmd.len); | |
3002 | ||
3003 | set_bit(STATUS_SCAN_HW, &priv->status); | |
518099a8 | 3004 | rc = iwl_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
3005 | if (rc) |
3006 | goto done; | |
3007 | ||
3008 | queue_delayed_work(priv->workqueue, &priv->scan_check, | |
3009 | IWL_SCAN_CHECK_WATCHDOG); | |
3010 | ||
3011 | mutex_unlock(&priv->mutex); | |
3012 | return; | |
3013 | ||
3014 | done: | |
2420ebc1 MA |
3015 | /* can not perform scan make sure we clear scanning |
3016 | * bits from status so next scan request can be performed. | |
3017 | * if we dont clear scanning status bit here all next scan | |
3018 | * will fail | |
3019 | */ | |
3020 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
3021 | clear_bit(STATUS_SCANNING, &priv->status); | |
3022 | ||
01ebd063 | 3023 | /* inform mac80211 scan aborted */ |
b481de9c ZY |
3024 | queue_work(priv->workqueue, &priv->scan_completed); |
3025 | mutex_unlock(&priv->mutex); | |
3026 | } | |
3027 | ||
bb8c093b | 3028 | static void iwl3945_bg_restart(struct work_struct *data) |
b481de9c | 3029 | { |
4a8a4322 | 3030 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c ZY |
3031 | |
3032 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3033 | return; | |
3034 | ||
19cc1087 JB |
3035 | if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) { |
3036 | mutex_lock(&priv->mutex); | |
3037 | priv->vif = NULL; | |
3038 | priv->is_open = 0; | |
3039 | mutex_unlock(&priv->mutex); | |
3040 | iwl3945_down(priv); | |
3041 | ieee80211_restart_hw(priv->hw); | |
3042 | } else { | |
3043 | iwl3945_down(priv); | |
80676518 JB |
3044 | |
3045 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3046 | return; | |
3047 | ||
3048 | mutex_lock(&priv->mutex); | |
3049 | __iwl3945_up(priv); | |
3050 | mutex_unlock(&priv->mutex); | |
19cc1087 | 3051 | } |
b481de9c ZY |
3052 | } |
3053 | ||
bb8c093b | 3054 | static void iwl3945_bg_rx_replenish(struct work_struct *data) |
b481de9c | 3055 | { |
4a8a4322 AK |
3056 | struct iwl_priv *priv = |
3057 | container_of(data, struct iwl_priv, rx_replenish); | |
b481de9c ZY |
3058 | |
3059 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3060 | return; | |
3061 | ||
3062 | mutex_lock(&priv->mutex); | |
bb8c093b | 3063 | iwl3945_rx_replenish(priv); |
b481de9c ZY |
3064 | mutex_unlock(&priv->mutex); |
3065 | } | |
3066 | ||
7878a5a4 MA |
3067 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
3068 | ||
5bbe233b | 3069 | void iwl3945_post_associate(struct iwl_priv *priv) |
b481de9c | 3070 | { |
b481de9c ZY |
3071 | int rc = 0; |
3072 | struct ieee80211_conf *conf = NULL; | |
3073 | ||
05c914fe | 3074 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
15b1687c | 3075 | IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__); |
b481de9c ZY |
3076 | return; |
3077 | } | |
3078 | ||
3079 | ||
e1623446 | 3080 | IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n", |
8ccde88a | 3081 | priv->assoc_id, priv->active_rxon.bssid_addr); |
b481de9c ZY |
3082 | |
3083 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3084 | return; | |
3085 | ||
322a9811 | 3086 | if (!priv->vif || !priv->is_open) |
6ef89d0a | 3087 | return; |
322a9811 | 3088 | |
af0053d6 | 3089 | iwl_scan_cancel_timeout(priv, 200); |
15e869d8 | 3090 | |
b481de9c ZY |
3091 | conf = ieee80211_get_hw_conf(priv->hw); |
3092 | ||
8ccde88a | 3093 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
e0158e61 | 3094 | iwlcore_commit_rxon(priv); |
b481de9c | 3095 | |
28afaf91 | 3096 | memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd)); |
2c2f3b33 | 3097 | iwl_setup_rxon_timing(priv); |
518099a8 | 3098 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c ZY |
3099 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
3100 | if (rc) | |
39aadf8c | 3101 | IWL_WARN(priv, "REPLY_RXON_TIMING failed - " |
b481de9c ZY |
3102 | "Attempting to continue.\n"); |
3103 | ||
8ccde88a | 3104 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
b481de9c | 3105 | |
8ccde88a | 3106 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
b481de9c | 3107 | |
e1623446 | 3108 | IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n", |
b481de9c ZY |
3109 | priv->assoc_id, priv->beacon_int); |
3110 | ||
3111 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
8ccde88a | 3112 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
b481de9c | 3113 | else |
8ccde88a | 3114 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
b481de9c | 3115 | |
8ccde88a | 3116 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { |
b481de9c | 3117 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
8ccde88a | 3118 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; |
b481de9c | 3119 | else |
8ccde88a | 3120 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
b481de9c | 3121 | |
05c914fe | 3122 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
8ccde88a | 3123 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
b481de9c ZY |
3124 | |
3125 | } | |
3126 | ||
e0158e61 | 3127 | iwlcore_commit_rxon(priv); |
b481de9c ZY |
3128 | |
3129 | switch (priv->iw_mode) { | |
05c914fe | 3130 | case NL80211_IFTYPE_STATION: |
bb8c093b | 3131 | iwl3945_rate_scale_init(priv->hw, IWL_AP_ID); |
b481de9c ZY |
3132 | break; |
3133 | ||
05c914fe | 3134 | case NL80211_IFTYPE_ADHOC: |
b481de9c | 3135 | |
ce546fd2 | 3136 | priv->assoc_id = 1; |
c587de0b | 3137 | iwl_add_station(priv, priv->bssid, 0, CMD_SYNC, NULL); |
b481de9c | 3138 | iwl3945_sync_sta(priv, IWL_STA_ID, |
8318d78a | 3139 | (priv->band == IEEE80211_BAND_5GHZ) ? |
b481de9c ZY |
3140 | IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP, |
3141 | CMD_ASYNC); | |
bb8c093b CH |
3142 | iwl3945_rate_scale_init(priv->hw, IWL_STA_ID); |
3143 | iwl3945_send_beacon_cmd(priv); | |
b481de9c ZY |
3144 | |
3145 | break; | |
3146 | ||
3147 | default: | |
15b1687c | 3148 | IWL_ERR(priv, "%s Should not be called in %d mode\n", |
3ac7f146 | 3149 | __func__, priv->iw_mode); |
b481de9c ZY |
3150 | break; |
3151 | } | |
3152 | ||
14d2aac5 | 3153 | iwl_activate_qos(priv, 0); |
292ae174 | 3154 | |
7878a5a4 MA |
3155 | /* we have just associated, don't start scan too early */ |
3156 | priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; | |
cd56d331 AK |
3157 | } |
3158 | ||
b481de9c ZY |
3159 | /***************************************************************************** |
3160 | * | |
3161 | * mac80211 entry point functions | |
3162 | * | |
3163 | *****************************************************************************/ | |
3164 | ||
5a66926a ZY |
3165 | #define UCODE_READY_TIMEOUT (2 * HZ) |
3166 | ||
bb8c093b | 3167 | static int iwl3945_mac_start(struct ieee80211_hw *hw) |
b481de9c | 3168 | { |
4a8a4322 | 3169 | struct iwl_priv *priv = hw->priv; |
5a66926a | 3170 | int ret; |
b481de9c | 3171 | |
e1623446 | 3172 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c ZY |
3173 | |
3174 | /* we should be verifying the device is ready to be opened */ | |
3175 | mutex_lock(&priv->mutex); | |
3176 | ||
5a66926a ZY |
3177 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... |
3178 | * ucode filename and max sizes are card-specific. */ | |
3179 | ||
3180 | if (!priv->ucode_code.len) { | |
3181 | ret = iwl3945_read_ucode(priv); | |
3182 | if (ret) { | |
15b1687c | 3183 | IWL_ERR(priv, "Could not read microcode: %d\n", ret); |
5a66926a ZY |
3184 | mutex_unlock(&priv->mutex); |
3185 | goto out_release_irq; | |
3186 | } | |
3187 | } | |
b481de9c | 3188 | |
e655b9f0 | 3189 | ret = __iwl3945_up(priv); |
b481de9c ZY |
3190 | |
3191 | mutex_unlock(&priv->mutex); | |
5a66926a | 3192 | |
e655b9f0 ZY |
3193 | if (ret) |
3194 | goto out_release_irq; | |
3195 | ||
e1623446 | 3196 | IWL_DEBUG_INFO(priv, "Start UP work.\n"); |
e655b9f0 | 3197 | |
5a66926a ZY |
3198 | /* Wait for START_ALIVE from ucode. Otherwise callbacks from |
3199 | * mac80211 will not be run successfully. */ | |
3200 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
3201 | test_bit(STATUS_READY, &priv->status), | |
3202 | UCODE_READY_TIMEOUT); | |
3203 | if (!ret) { | |
3204 | if (!test_bit(STATUS_READY, &priv->status)) { | |
15b1687c WT |
3205 | IWL_ERR(priv, |
3206 | "Wait for START_ALIVE timeout after %dms.\n", | |
3207 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
5a66926a ZY |
3208 | ret = -ETIMEDOUT; |
3209 | goto out_release_irq; | |
3210 | } | |
3211 | } | |
3212 | ||
2663516d HS |
3213 | /* ucode is running and will send rfkill notifications, |
3214 | * no need to poll the killswitch state anymore */ | |
3215 | cancel_delayed_work(&priv->rfkill_poll); | |
3216 | ||
e932a609 JB |
3217 | iwl_led_start(priv); |
3218 | ||
e655b9f0 | 3219 | priv->is_open = 1; |
e1623446 | 3220 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c | 3221 | return 0; |
5a66926a ZY |
3222 | |
3223 | out_release_irq: | |
e655b9f0 | 3224 | priv->is_open = 0; |
e1623446 | 3225 | IWL_DEBUG_MAC80211(priv, "leave - failed\n"); |
5a66926a | 3226 | return ret; |
b481de9c ZY |
3227 | } |
3228 | ||
bb8c093b | 3229 | static void iwl3945_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 3230 | { |
4a8a4322 | 3231 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3232 | |
e1623446 | 3233 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
6ef89d0a | 3234 | |
e655b9f0 | 3235 | if (!priv->is_open) { |
e1623446 | 3236 | IWL_DEBUG_MAC80211(priv, "leave - skip\n"); |
e655b9f0 ZY |
3237 | return; |
3238 | } | |
3239 | ||
b481de9c | 3240 | priv->is_open = 0; |
5a66926a | 3241 | |
775a6e27 | 3242 | if (iwl_is_ready_rf(priv)) { |
e655b9f0 ZY |
3243 | /* stop mac, cancel any scan request and clear |
3244 | * RXON_FILTER_ASSOC_MSK BIT | |
3245 | */ | |
5a66926a | 3246 | mutex_lock(&priv->mutex); |
af0053d6 | 3247 | iwl_scan_cancel_timeout(priv, 100); |
fde3571f | 3248 | mutex_unlock(&priv->mutex); |
fde3571f MA |
3249 | } |
3250 | ||
5a66926a ZY |
3251 | iwl3945_down(priv); |
3252 | ||
3253 | flush_workqueue(priv->workqueue); | |
2663516d HS |
3254 | |
3255 | /* start polling the killswitch state again */ | |
3256 | queue_delayed_work(priv->workqueue, &priv->rfkill_poll, | |
3257 | round_jiffies_relative(2 * HZ)); | |
6ef89d0a | 3258 | |
e1623446 | 3259 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
3260 | } |
3261 | ||
e039fa4a | 3262 | static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 3263 | { |
4a8a4322 | 3264 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3265 | |
e1623446 | 3266 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c | 3267 | |
e1623446 | 3268 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
e039fa4a | 3269 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 3270 | |
e039fa4a | 3271 | if (iwl3945_tx_skb(priv, skb)) |
b481de9c ZY |
3272 | dev_kfree_skb_any(skb); |
3273 | ||
e1623446 | 3274 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
637f8837 | 3275 | return NETDEV_TX_OK; |
b481de9c ZY |
3276 | } |
3277 | ||
60690a6a | 3278 | void iwl3945_config_ap(struct iwl_priv *priv) |
b481de9c ZY |
3279 | { |
3280 | int rc = 0; | |
3281 | ||
d986bcd1 | 3282 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
3283 | return; |
3284 | ||
3285 | /* The following should be done only at AP bring up */ | |
8ccde88a | 3286 | if (!(iwl_is_associated(priv))) { |
b481de9c ZY |
3287 | |
3288 | /* RXON - unassoc (to set timing command) */ | |
8ccde88a | 3289 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
e0158e61 | 3290 | iwlcore_commit_rxon(priv); |
b481de9c ZY |
3291 | |
3292 | /* RXON Timing */ | |
28afaf91 | 3293 | memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd)); |
2c2f3b33 | 3294 | iwl_setup_rxon_timing(priv); |
518099a8 SO |
3295 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
3296 | sizeof(priv->rxon_timing), | |
3297 | &priv->rxon_timing); | |
b481de9c | 3298 | if (rc) |
39aadf8c | 3299 | IWL_WARN(priv, "REPLY_RXON_TIMING failed - " |
b481de9c ZY |
3300 | "Attempting to continue.\n"); |
3301 | ||
3302 | /* FIXME: what should be the assoc_id for AP? */ | |
8ccde88a | 3303 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
b481de9c | 3304 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) |
8ccde88a | 3305 | priv->staging_rxon.flags |= |
b481de9c ZY |
3306 | RXON_FLG_SHORT_PREAMBLE_MSK; |
3307 | else | |
8ccde88a | 3308 | priv->staging_rxon.flags &= |
b481de9c ZY |
3309 | ~RXON_FLG_SHORT_PREAMBLE_MSK; |
3310 | ||
8ccde88a | 3311 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { |
b481de9c ZY |
3312 | if (priv->assoc_capability & |
3313 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
8ccde88a | 3314 | priv->staging_rxon.flags |= |
b481de9c ZY |
3315 | RXON_FLG_SHORT_SLOT_MSK; |
3316 | else | |
8ccde88a | 3317 | priv->staging_rxon.flags &= |
b481de9c ZY |
3318 | ~RXON_FLG_SHORT_SLOT_MSK; |
3319 | ||
05c914fe | 3320 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
8ccde88a | 3321 | priv->staging_rxon.flags &= |
b481de9c ZY |
3322 | ~RXON_FLG_SHORT_SLOT_MSK; |
3323 | } | |
3324 | /* restore RXON assoc */ | |
8ccde88a | 3325 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
e0158e61 | 3326 | iwlcore_commit_rxon(priv); |
c587de0b | 3327 | iwl_add_station(priv, iwl_bcast_addr, 0, CMD_SYNC, NULL); |
556f8db7 | 3328 | } |
bb8c093b | 3329 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
3330 | |
3331 | /* FIXME - we need to add code here to detect a totally new | |
3332 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
3333 | * clear sta table, add BCAST sta... */ | |
3334 | } | |
3335 | ||
bb8c093b | 3336 | static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
dc822b5d JB |
3337 | struct ieee80211_vif *vif, |
3338 | struct ieee80211_sta *sta, | |
3339 | struct ieee80211_key_conf *key) | |
b481de9c | 3340 | { |
4a8a4322 | 3341 | struct iwl_priv *priv = hw->priv; |
dc822b5d | 3342 | const u8 *addr; |
6e21f15c AK |
3343 | int ret = 0; |
3344 | u8 sta_id = IWL_INVALID_STATION; | |
3345 | u8 static_key; | |
b481de9c | 3346 | |
e1623446 | 3347 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c | 3348 | |
df878d8f | 3349 | if (iwl3945_mod_params.sw_crypto) { |
e1623446 | 3350 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
b481de9c ZY |
3351 | return -EOPNOTSUPP; |
3352 | } | |
3353 | ||
42986796 | 3354 | addr = sta ? sta->addr : iwl_bcast_addr; |
6e21f15c AK |
3355 | static_key = !iwl_is_associated(priv); |
3356 | ||
3357 | if (!static_key) { | |
c587de0b | 3358 | sta_id = iwl_find_station(priv, addr); |
6e21f15c | 3359 | if (sta_id == IWL_INVALID_STATION) { |
12514396 | 3360 | IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n", |
6e21f15c AK |
3361 | addr); |
3362 | return -EINVAL; | |
3363 | } | |
b481de9c ZY |
3364 | } |
3365 | ||
3366 | mutex_lock(&priv->mutex); | |
af0053d6 | 3367 | iwl_scan_cancel_timeout(priv, 100); |
6e21f15c | 3368 | mutex_unlock(&priv->mutex); |
15e869d8 | 3369 | |
b481de9c | 3370 | switch (cmd) { |
6e21f15c AK |
3371 | case SET_KEY: |
3372 | if (static_key) | |
3373 | ret = iwl3945_set_static_key(priv, key); | |
3374 | else | |
3375 | ret = iwl3945_set_dynamic_key(priv, key, sta_id); | |
3376 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); | |
b481de9c ZY |
3377 | break; |
3378 | case DISABLE_KEY: | |
6e21f15c AK |
3379 | if (static_key) |
3380 | ret = iwl3945_remove_static_key(priv); | |
3381 | else | |
3382 | ret = iwl3945_clear_sta_key_info(priv, sta_id); | |
3383 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); | |
b481de9c ZY |
3384 | break; |
3385 | default: | |
42986796 | 3386 | ret = -EINVAL; |
b481de9c ZY |
3387 | } |
3388 | ||
e1623446 | 3389 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c | 3390 | |
42986796 | 3391 | return ret; |
b481de9c ZY |
3392 | } |
3393 | ||
b481de9c ZY |
3394 | /***************************************************************************** |
3395 | * | |
3396 | * sysfs attributes | |
3397 | * | |
3398 | *****************************************************************************/ | |
3399 | ||
d08853a3 | 3400 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
3401 | |
3402 | /* | |
3403 | * The following adds a new attribute to the sysfs representation | |
3404 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
3405 | * used for controlling the debug level. | |
3406 | * | |
3407 | * See the level definitions in iwl for details. | |
a562a9dd | 3408 | * |
3d816c77 RC |
3409 | * The debug_level being managed using sysfs below is a per device debug |
3410 | * level that is used instead of the global debug level if it (the per | |
3411 | * device debug level) is set. | |
b481de9c | 3412 | */ |
40b8ec0b SO |
3413 | static ssize_t show_debug_level(struct device *d, |
3414 | struct device_attribute *attr, char *buf) | |
b481de9c | 3415 | { |
3d816c77 RC |
3416 | struct iwl_priv *priv = dev_get_drvdata(d); |
3417 | return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv)); | |
b481de9c | 3418 | } |
40b8ec0b SO |
3419 | static ssize_t store_debug_level(struct device *d, |
3420 | struct device_attribute *attr, | |
b481de9c ZY |
3421 | const char *buf, size_t count) |
3422 | { | |
928841b1 | 3423 | struct iwl_priv *priv = dev_get_drvdata(d); |
40b8ec0b SO |
3424 | unsigned long val; |
3425 | int ret; | |
b481de9c | 3426 | |
40b8ec0b SO |
3427 | ret = strict_strtoul(buf, 0, &val); |
3428 | if (ret) | |
978785a3 | 3429 | IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf); |
20594eb0 | 3430 | else { |
3d816c77 | 3431 | priv->debug_level = val; |
20594eb0 WYG |
3432 | if (iwl_alloc_traffic_mem(priv)) |
3433 | IWL_ERR(priv, | |
3434 | "Not enough memory to generate traffic log\n"); | |
3435 | } | |
b481de9c ZY |
3436 | return strnlen(buf, count); |
3437 | } | |
3438 | ||
40b8ec0b SO |
3439 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
3440 | show_debug_level, store_debug_level); | |
b481de9c | 3441 | |
d08853a3 | 3442 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
b481de9c | 3443 | |
b481de9c ZY |
3444 | static ssize_t show_temperature(struct device *d, |
3445 | struct device_attribute *attr, char *buf) | |
3446 | { | |
928841b1 | 3447 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c | 3448 | |
775a6e27 | 3449 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3450 | return -EAGAIN; |
3451 | ||
bb8c093b | 3452 | return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv)); |
b481de9c ZY |
3453 | } |
3454 | ||
3455 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
3456 | ||
b481de9c ZY |
3457 | static ssize_t show_tx_power(struct device *d, |
3458 | struct device_attribute *attr, char *buf) | |
3459 | { | |
928841b1 | 3460 | struct iwl_priv *priv = dev_get_drvdata(d); |
62ea9c5b | 3461 | return sprintf(buf, "%d\n", priv->tx_power_user_lmt); |
b481de9c ZY |
3462 | } |
3463 | ||
3464 | static ssize_t store_tx_power(struct device *d, | |
3465 | struct device_attribute *attr, | |
3466 | const char *buf, size_t count) | |
3467 | { | |
928841b1 | 3468 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3469 | char *p = (char *)buf; |
3470 | u32 val; | |
3471 | ||
3472 | val = simple_strtoul(p, &p, 10); | |
3473 | if (p == buf) | |
978785a3 | 3474 | IWL_INFO(priv, ": %s is not in decimal form.\n", buf); |
b481de9c | 3475 | else |
bb8c093b | 3476 | iwl3945_hw_reg_set_txpower(priv, val); |
b481de9c ZY |
3477 | |
3478 | return count; | |
3479 | } | |
3480 | ||
3481 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
3482 | ||
3483 | static ssize_t show_flags(struct device *d, | |
3484 | struct device_attribute *attr, char *buf) | |
3485 | { | |
928841b1 | 3486 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c | 3487 | |
8ccde88a | 3488 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); |
b481de9c ZY |
3489 | } |
3490 | ||
3491 | static ssize_t store_flags(struct device *d, | |
3492 | struct device_attribute *attr, | |
3493 | const char *buf, size_t count) | |
3494 | { | |
928841b1 | 3495 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3496 | u32 flags = simple_strtoul(buf, NULL, 0); |
3497 | ||
3498 | mutex_lock(&priv->mutex); | |
8ccde88a | 3499 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { |
b481de9c | 3500 | /* Cancel any currently running scans... */ |
af0053d6 | 3501 | if (iwl_scan_cancel_timeout(priv, 100)) |
39aadf8c | 3502 | IWL_WARN(priv, "Could not cancel scan.\n"); |
b481de9c | 3503 | else { |
e1623446 | 3504 | IWL_DEBUG_INFO(priv, "Committing rxon.flags = 0x%04X\n", |
b481de9c | 3505 | flags); |
8ccde88a | 3506 | priv->staging_rxon.flags = cpu_to_le32(flags); |
e0158e61 | 3507 | iwlcore_commit_rxon(priv); |
b481de9c ZY |
3508 | } |
3509 | } | |
3510 | mutex_unlock(&priv->mutex); | |
3511 | ||
3512 | return count; | |
3513 | } | |
3514 | ||
3515 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
3516 | ||
3517 | static ssize_t show_filter_flags(struct device *d, | |
3518 | struct device_attribute *attr, char *buf) | |
3519 | { | |
928841b1 | 3520 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3521 | |
3522 | return sprintf(buf, "0x%04X\n", | |
8ccde88a | 3523 | le32_to_cpu(priv->active_rxon.filter_flags)); |
b481de9c ZY |
3524 | } |
3525 | ||
3526 | static ssize_t store_filter_flags(struct device *d, | |
3527 | struct device_attribute *attr, | |
3528 | const char *buf, size_t count) | |
3529 | { | |
928841b1 | 3530 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3531 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
3532 | ||
3533 | mutex_lock(&priv->mutex); | |
8ccde88a | 3534 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { |
b481de9c | 3535 | /* Cancel any currently running scans... */ |
af0053d6 | 3536 | if (iwl_scan_cancel_timeout(priv, 100)) |
39aadf8c | 3537 | IWL_WARN(priv, "Could not cancel scan.\n"); |
b481de9c | 3538 | else { |
e1623446 | 3539 | IWL_DEBUG_INFO(priv, "Committing rxon.filter_flags = " |
b481de9c | 3540 | "0x%04X\n", filter_flags); |
8ccde88a | 3541 | priv->staging_rxon.filter_flags = |
b481de9c | 3542 | cpu_to_le32(filter_flags); |
e0158e61 | 3543 | iwlcore_commit_rxon(priv); |
b481de9c ZY |
3544 | } |
3545 | } | |
3546 | mutex_unlock(&priv->mutex); | |
3547 | ||
3548 | return count; | |
3549 | } | |
3550 | ||
3551 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
3552 | store_filter_flags); | |
3553 | ||
b481de9c ZY |
3554 | static ssize_t show_measurement(struct device *d, |
3555 | struct device_attribute *attr, char *buf) | |
3556 | { | |
4a8a4322 | 3557 | struct iwl_priv *priv = dev_get_drvdata(d); |
600c0e11 | 3558 | struct iwl_spectrum_notification measure_report; |
b481de9c | 3559 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
3ac7f146 | 3560 | u8 *data = (u8 *)&measure_report; |
b481de9c ZY |
3561 | unsigned long flags; |
3562 | ||
3563 | spin_lock_irqsave(&priv->lock, flags); | |
3564 | if (!(priv->measurement_status & MEASUREMENT_READY)) { | |
3565 | spin_unlock_irqrestore(&priv->lock, flags); | |
3566 | return 0; | |
3567 | } | |
3568 | memcpy(&measure_report, &priv->measure_report, size); | |
3569 | priv->measurement_status = 0; | |
3570 | spin_unlock_irqrestore(&priv->lock, flags); | |
3571 | ||
3572 | while (size && (PAGE_SIZE - len)) { | |
3573 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
3574 | PAGE_SIZE - len, 1); | |
3575 | len = strlen(buf); | |
3576 | if (PAGE_SIZE - len) | |
3577 | buf[len++] = '\n'; | |
3578 | ||
3579 | ofs += 16; | |
3580 | size -= min(size, 16U); | |
3581 | } | |
3582 | ||
3583 | return len; | |
3584 | } | |
3585 | ||
3586 | static ssize_t store_measurement(struct device *d, | |
3587 | struct device_attribute *attr, | |
3588 | const char *buf, size_t count) | |
3589 | { | |
4a8a4322 | 3590 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c | 3591 | struct ieee80211_measurement_params params = { |
8ccde88a | 3592 | .channel = le16_to_cpu(priv->active_rxon.channel), |
b481de9c ZY |
3593 | .start_time = cpu_to_le64(priv->last_tsf), |
3594 | .duration = cpu_to_le16(1), | |
3595 | }; | |
3596 | u8 type = IWL_MEASURE_BASIC; | |
3597 | u8 buffer[32]; | |
3598 | u8 channel; | |
3599 | ||
3600 | if (count) { | |
3601 | char *p = buffer; | |
3602 | strncpy(buffer, buf, min(sizeof(buffer), count)); | |
3603 | channel = simple_strtoul(p, NULL, 0); | |
3604 | if (channel) | |
3605 | params.channel = channel; | |
3606 | ||
3607 | p = buffer; | |
3608 | while (*p && *p != ' ') | |
3609 | p++; | |
3610 | if (*p) | |
3611 | type = simple_strtoul(p + 1, NULL, 0); | |
3612 | } | |
3613 | ||
e1623446 | 3614 | IWL_DEBUG_INFO(priv, "Invoking measurement of type %d on " |
b481de9c | 3615 | "channel %d (for '%s')\n", type, params.channel, buf); |
bb8c093b | 3616 | iwl3945_get_measurement(priv, ¶ms, type); |
b481de9c ZY |
3617 | |
3618 | return count; | |
3619 | } | |
3620 | ||
3621 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, | |
3622 | show_measurement, store_measurement); | |
b481de9c | 3623 | |
b481de9c ZY |
3624 | static ssize_t store_retry_rate(struct device *d, |
3625 | struct device_attribute *attr, | |
3626 | const char *buf, size_t count) | |
3627 | { | |
4a8a4322 | 3628 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3629 | |
3630 | priv->retry_rate = simple_strtoul(buf, NULL, 0); | |
3631 | if (priv->retry_rate <= 0) | |
3632 | priv->retry_rate = 1; | |
3633 | ||
3634 | return count; | |
3635 | } | |
3636 | ||
3637 | static ssize_t show_retry_rate(struct device *d, | |
3638 | struct device_attribute *attr, char *buf) | |
3639 | { | |
4a8a4322 | 3640 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3641 | return sprintf(buf, "%d", priv->retry_rate); |
3642 | } | |
3643 | ||
3644 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
3645 | store_retry_rate); | |
3646 | ||
d25aabb0 | 3647 | |
b481de9c ZY |
3648 | static ssize_t show_channels(struct device *d, |
3649 | struct device_attribute *attr, char *buf) | |
3650 | { | |
8318d78a JB |
3651 | /* all this shit doesn't belong into sysfs anyway */ |
3652 | return 0; | |
b481de9c ZY |
3653 | } |
3654 | ||
3655 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); | |
3656 | ||
3657 | static ssize_t show_statistics(struct device *d, | |
3658 | struct device_attribute *attr, char *buf) | |
3659 | { | |
4a8a4322 | 3660 | struct iwl_priv *priv = dev_get_drvdata(d); |
bb8c093b | 3661 | u32 size = sizeof(struct iwl3945_notif_statistics); |
b481de9c | 3662 | u32 len = 0, ofs = 0; |
f2c7e521 | 3663 | u8 *data = (u8 *)&priv->statistics_39; |
b481de9c ZY |
3664 | int rc = 0; |
3665 | ||
775a6e27 | 3666 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3667 | return -EAGAIN; |
3668 | ||
3669 | mutex_lock(&priv->mutex); | |
ef8d5529 | 3670 | rc = iwl_send_statistics_request(priv, CMD_SYNC, false); |
b481de9c ZY |
3671 | mutex_unlock(&priv->mutex); |
3672 | ||
3673 | if (rc) { | |
3674 | len = sprintf(buf, | |
3675 | "Error sending statistics request: 0x%08X\n", rc); | |
3676 | return len; | |
3677 | } | |
3678 | ||
3679 | while (size && (PAGE_SIZE - len)) { | |
3680 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
3681 | PAGE_SIZE - len, 1); | |
3682 | len = strlen(buf); | |
3683 | if (PAGE_SIZE - len) | |
3684 | buf[len++] = '\n'; | |
3685 | ||
3686 | ofs += 16; | |
3687 | size -= min(size, 16U); | |
3688 | } | |
3689 | ||
3690 | return len; | |
3691 | } | |
3692 | ||
3693 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
3694 | ||
3695 | static ssize_t show_antenna(struct device *d, | |
3696 | struct device_attribute *attr, char *buf) | |
3697 | { | |
4a8a4322 | 3698 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c | 3699 | |
775a6e27 | 3700 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3701 | return -EAGAIN; |
3702 | ||
7e4bca5e | 3703 | return sprintf(buf, "%d\n", iwl3945_mod_params.antenna); |
b481de9c ZY |
3704 | } |
3705 | ||
3706 | static ssize_t store_antenna(struct device *d, | |
3707 | struct device_attribute *attr, | |
3708 | const char *buf, size_t count) | |
3709 | { | |
7530f85f | 3710 | struct iwl_priv *priv __maybe_unused = dev_get_drvdata(d); |
b481de9c | 3711 | int ant; |
b481de9c ZY |
3712 | |
3713 | if (count == 0) | |
3714 | return 0; | |
3715 | ||
3716 | if (sscanf(buf, "%1i", &ant) != 1) { | |
e1623446 | 3717 | IWL_DEBUG_INFO(priv, "not in hex or decimal form.\n"); |
b481de9c ZY |
3718 | return count; |
3719 | } | |
3720 | ||
3721 | if ((ant >= 0) && (ant <= 2)) { | |
e1623446 | 3722 | IWL_DEBUG_INFO(priv, "Setting antenna select to %d.\n", ant); |
7e4bca5e | 3723 | iwl3945_mod_params.antenna = (enum iwl3945_antenna)ant; |
b481de9c | 3724 | } else |
e1623446 | 3725 | IWL_DEBUG_INFO(priv, "Bad antenna select value %d.\n", ant); |
b481de9c ZY |
3726 | |
3727 | ||
3728 | return count; | |
3729 | } | |
3730 | ||
3731 | static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna); | |
3732 | ||
3733 | static ssize_t show_status(struct device *d, | |
3734 | struct device_attribute *attr, char *buf) | |
3735 | { | |
928841b1 | 3736 | struct iwl_priv *priv = dev_get_drvdata(d); |
775a6e27 | 3737 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3738 | return -EAGAIN; |
3739 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
3740 | } | |
3741 | ||
3742 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
3743 | ||
3744 | static ssize_t dump_error_log(struct device *d, | |
3745 | struct device_attribute *attr, | |
3746 | const char *buf, size_t count) | |
3747 | { | |
928841b1 | 3748 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3749 | char *p = (char *)buf; |
3750 | ||
3751 | if (p[0] == '1') | |
928841b1 | 3752 | iwl3945_dump_nic_error_log(priv); |
b481de9c ZY |
3753 | |
3754 | return strnlen(buf, count); | |
3755 | } | |
3756 | ||
3757 | static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log); | |
3758 | ||
b481de9c ZY |
3759 | /***************************************************************************** |
3760 | * | |
a96a27f9 | 3761 | * driver setup and tear down |
b481de9c ZY |
3762 | * |
3763 | *****************************************************************************/ | |
3764 | ||
4a8a4322 | 3765 | static void iwl3945_setup_deferred_work(struct iwl_priv *priv) |
b481de9c | 3766 | { |
d21050c7 | 3767 | priv->workqueue = create_singlethread_workqueue(DRV_NAME); |
b481de9c ZY |
3768 | |
3769 | init_waitqueue_head(&priv->wait_command_queue); | |
3770 | ||
bb8c093b CH |
3771 | INIT_WORK(&priv->restart, iwl3945_bg_restart); |
3772 | INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish); | |
bb8c093b | 3773 | INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update); |
bb8c093b CH |
3774 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start); |
3775 | INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start); | |
2663516d | 3776 | INIT_DELAYED_WORK(&priv->rfkill_poll, iwl3945_rfkill_poll); |
77fecfb8 SO |
3777 | INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed); |
3778 | INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan); | |
3779 | INIT_WORK(&priv->abort_scan, iwl_bg_abort_scan); | |
3780 | INIT_DELAYED_WORK(&priv->scan_check, iwl_bg_scan_check); | |
bb8c093b CH |
3781 | |
3782 | iwl3945_hw_setup_deferred_work(priv); | |
b481de9c ZY |
3783 | |
3784 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
bb8c093b | 3785 | iwl3945_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
3786 | } |
3787 | ||
4a8a4322 | 3788 | static void iwl3945_cancel_deferred_work(struct iwl_priv *priv) |
b481de9c | 3789 | { |
bb8c093b | 3790 | iwl3945_hw_cancel_deferred_work(priv); |
b481de9c | 3791 | |
e47eb6ad | 3792 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c ZY |
3793 | cancel_delayed_work(&priv->scan_check); |
3794 | cancel_delayed_work(&priv->alive_start); | |
b481de9c ZY |
3795 | cancel_work_sync(&priv->beacon_update); |
3796 | } | |
3797 | ||
bb8c093b | 3798 | static struct attribute *iwl3945_sysfs_entries[] = { |
b481de9c ZY |
3799 | &dev_attr_antenna.attr, |
3800 | &dev_attr_channels.attr, | |
3801 | &dev_attr_dump_errors.attr, | |
b481de9c ZY |
3802 | &dev_attr_flags.attr, |
3803 | &dev_attr_filter_flags.attr, | |
b481de9c | 3804 | &dev_attr_measurement.attr, |
b481de9c | 3805 | &dev_attr_retry_rate.attr, |
b481de9c ZY |
3806 | &dev_attr_statistics.attr, |
3807 | &dev_attr_status.attr, | |
3808 | &dev_attr_temperature.attr, | |
b481de9c | 3809 | &dev_attr_tx_power.attr, |
d08853a3 | 3810 | #ifdef CONFIG_IWLWIFI_DEBUG |
40b8ec0b SO |
3811 | &dev_attr_debug_level.attr, |
3812 | #endif | |
b481de9c ZY |
3813 | NULL |
3814 | }; | |
3815 | ||
bb8c093b | 3816 | static struct attribute_group iwl3945_attribute_group = { |
b481de9c | 3817 | .name = NULL, /* put in device directory */ |
bb8c093b | 3818 | .attrs = iwl3945_sysfs_entries, |
b481de9c ZY |
3819 | }; |
3820 | ||
bb8c093b CH |
3821 | static struct ieee80211_ops iwl3945_hw_ops = { |
3822 | .tx = iwl3945_mac_tx, | |
3823 | .start = iwl3945_mac_start, | |
3824 | .stop = iwl3945_mac_stop, | |
cbb6ab94 | 3825 | .add_interface = iwl_mac_add_interface, |
d8052319 | 3826 | .remove_interface = iwl_mac_remove_interface, |
4808368d | 3827 | .config = iwl_mac_config, |
8ccde88a | 3828 | .configure_filter = iwl_configure_filter, |
bb8c093b | 3829 | .set_key = iwl3945_mac_set_key, |
488829f1 | 3830 | .conf_tx = iwl_mac_conf_tx, |
bd564261 | 3831 | .reset_tsf = iwl_mac_reset_tsf, |
5bbe233b | 3832 | .bss_info_changed = iwl_bss_info_changed, |
e9dde6f6 | 3833 | .hw_scan = iwl_mac_hw_scan |
b481de9c ZY |
3834 | }; |
3835 | ||
e52119c5 | 3836 | static int iwl3945_init_drv(struct iwl_priv *priv) |
90a30a02 KA |
3837 | { |
3838 | int ret; | |
e6148917 | 3839 | struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; |
90a30a02 KA |
3840 | |
3841 | priv->retry_rate = 1; | |
3842 | priv->ibss_beacon = NULL; | |
3843 | ||
90a30a02 KA |
3844 | spin_lock_init(&priv->sta_lock); |
3845 | spin_lock_init(&priv->hcmd_lock); | |
3846 | ||
3847 | INIT_LIST_HEAD(&priv->free_frames); | |
3848 | ||
3849 | mutex_init(&priv->mutex); | |
3850 | ||
3851 | /* Clear the driver's (not device's) station table */ | |
c587de0b | 3852 | iwl_clear_stations_table(priv); |
90a30a02 | 3853 | |
90a30a02 KA |
3854 | priv->ieee_channels = NULL; |
3855 | priv->ieee_rates = NULL; | |
3856 | priv->band = IEEE80211_BAND_2GHZ; | |
3857 | ||
3858 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
a13d276f | 3859 | priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; |
90a30a02 KA |
3860 | |
3861 | iwl_reset_qos(priv); | |
3862 | ||
3863 | priv->qos_data.qos_active = 0; | |
3864 | priv->qos_data.qos_cap.val = 0; | |
3865 | ||
3866 | priv->rates_mask = IWL_RATES_MASK; | |
62ea9c5b | 3867 | priv->tx_power_user_lmt = IWL_DEFAULT_TX_POWER; |
90a30a02 | 3868 | |
e6148917 SO |
3869 | if (eeprom->version < EEPROM_3945_EEPROM_VERSION) { |
3870 | IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n", | |
3871 | eeprom->version); | |
3872 | ret = -EINVAL; | |
3873 | goto err; | |
3874 | } | |
3875 | ret = iwl_init_channel_map(priv); | |
90a30a02 KA |
3876 | if (ret) { |
3877 | IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); | |
3878 | goto err; | |
3879 | } | |
3880 | ||
e6148917 SO |
3881 | /* Set up txpower settings in driver for all channels */ |
3882 | if (iwl3945_txpower_set_from_eeprom(priv)) { | |
3883 | ret = -EIO; | |
3884 | goto err_free_channel_map; | |
3885 | } | |
3886 | ||
534166de | 3887 | ret = iwlcore_init_geos(priv); |
90a30a02 KA |
3888 | if (ret) { |
3889 | IWL_ERR(priv, "initializing geos failed: %d\n", ret); | |
3890 | goto err_free_channel_map; | |
3891 | } | |
534166de SO |
3892 | iwl3945_init_hw_rates(priv, priv->ieee_rates); |
3893 | ||
2a4ddaab AK |
3894 | return 0; |
3895 | ||
3896 | err_free_channel_map: | |
3897 | iwl_free_channel_map(priv); | |
3898 | err: | |
3899 | return ret; | |
3900 | } | |
3901 | ||
3902 | static int iwl3945_setup_mac(struct iwl_priv *priv) | |
3903 | { | |
3904 | int ret; | |
3905 | struct ieee80211_hw *hw = priv->hw; | |
3906 | ||
3907 | hw->rate_control_algorithm = "iwl-3945-rs"; | |
3908 | hw->sta_data_size = sizeof(struct iwl3945_sta_priv); | |
3909 | ||
3910 | /* Tell mac80211 our characteristics */ | |
3911 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
b1c6019b | 3912 | IEEE80211_HW_NOISE_DBM | |
bc45a670 RC |
3913 | IEEE80211_HW_SPECTRUM_MGMT; |
3914 | ||
3915 | if (!priv->cfg->broken_powersave) | |
3916 | hw->flags |= IEEE80211_HW_SUPPORTS_PS | | |
3917 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS; | |
2a4ddaab AK |
3918 | |
3919 | hw->wiphy->interface_modes = | |
3920 | BIT(NL80211_IFTYPE_STATION) | | |
3921 | BIT(NL80211_IFTYPE_ADHOC); | |
3922 | ||
5be83de5 JB |
3923 | hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY | |
3924 | WIPHY_FLAG_DISABLE_BEACON_HINTS; | |
37184244 | 3925 | |
1ecf9fc1 JB |
3926 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945; |
3927 | /* we create the 802.11 header and a zero-length SSID element */ | |
3928 | hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2; | |
d60cc91a | 3929 | |
2a4ddaab AK |
3930 | /* Default value; 4 EDCA QOS priorities */ |
3931 | hw->queues = 4; | |
3932 | ||
534166de SO |
3933 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) |
3934 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
3935 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
2a4ddaab | 3936 | |
534166de SO |
3937 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) |
3938 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
3939 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
90a30a02 | 3940 | |
2a4ddaab AK |
3941 | ret = ieee80211_register_hw(priv->hw); |
3942 | if (ret) { | |
3943 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
3944 | return ret; | |
3945 | } | |
3946 | priv->mac80211_registered = 1; | |
90a30a02 | 3947 | |
2a4ddaab | 3948 | return 0; |
90a30a02 KA |
3949 | } |
3950 | ||
bb8c093b | 3951 | static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
3952 | { |
3953 | int err = 0; | |
4a8a4322 | 3954 | struct iwl_priv *priv; |
b481de9c | 3955 | struct ieee80211_hw *hw; |
c0f20d91 | 3956 | struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); |
e6148917 | 3957 | struct iwl3945_eeprom *eeprom; |
0359facc | 3958 | unsigned long flags; |
b481de9c | 3959 | |
cee53ddb KA |
3960 | /*********************** |
3961 | * 1. Allocating HW data | |
3962 | * ********************/ | |
3963 | ||
b481de9c ZY |
3964 | /* mac80211 allocates memory for this device instance, including |
3965 | * space for this driver's private structure */ | |
90a30a02 | 3966 | hw = iwl_alloc_all(cfg, &iwl3945_hw_ops); |
b481de9c | 3967 | if (hw == NULL) { |
a3139c59 | 3968 | printk(KERN_ERR DRV_NAME "Can not allocate network device\n"); |
b481de9c ZY |
3969 | err = -ENOMEM; |
3970 | goto out; | |
3971 | } | |
b481de9c | 3972 | priv = hw->priv; |
90a30a02 | 3973 | SET_IEEE80211_DEV(hw, &pdev->dev); |
6440adb5 | 3974 | |
90a30a02 KA |
3975 | /* |
3976 | * Disabling hardware scan means that mac80211 will perform scans | |
3977 | * "the hard way", rather than using device's scan. | |
3978 | */ | |
df878d8f | 3979 | if (iwl3945_mod_params.disable_hw_scan) { |
e1623446 | 3980 | IWL_DEBUG_INFO(priv, "Disabling hw_scan\n"); |
40b8ec0b SO |
3981 | iwl3945_hw_ops.hw_scan = NULL; |
3982 | } | |
3983 | ||
90a30a02 | 3984 | |
e1623446 | 3985 | IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); |
90a30a02 KA |
3986 | priv->cfg = cfg; |
3987 | priv->pci_dev = pdev; | |
40cefda9 | 3988 | priv->inta_mask = CSR_INI_SET_MASK; |
cee53ddb | 3989 | |
d08853a3 | 3990 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
3991 | atomic_set(&priv->restrict_refcnt, 0); |
3992 | #endif | |
20594eb0 WYG |
3993 | if (iwl_alloc_traffic_mem(priv)) |
3994 | IWL_ERR(priv, "Not enough memory to generate traffic log\n"); | |
b481de9c | 3995 | |
cee53ddb KA |
3996 | /*************************** |
3997 | * 2. Initializing PCI bus | |
3998 | * *************************/ | |
b481de9c ZY |
3999 | if (pci_enable_device(pdev)) { |
4000 | err = -ENODEV; | |
4001 | goto out_ieee80211_free_hw; | |
4002 | } | |
4003 | ||
4004 | pci_set_master(pdev); | |
4005 | ||
284901a9 | 4006 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
b481de9c | 4007 | if (!err) |
284901a9 | 4008 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
b481de9c | 4009 | if (err) { |
978785a3 | 4010 | IWL_WARN(priv, "No suitable DMA available.\n"); |
b481de9c ZY |
4011 | goto out_pci_disable_device; |
4012 | } | |
4013 | ||
4014 | pci_set_drvdata(pdev, priv); | |
4015 | err = pci_request_regions(pdev, DRV_NAME); | |
4016 | if (err) | |
4017 | goto out_pci_disable_device; | |
6440adb5 | 4018 | |
cee53ddb KA |
4019 | /*********************** |
4020 | * 3. Read REV Register | |
4021 | * ********************/ | |
b481de9c ZY |
4022 | priv->hw_base = pci_iomap(pdev, 0, 0); |
4023 | if (!priv->hw_base) { | |
4024 | err = -ENODEV; | |
4025 | goto out_pci_release_regions; | |
4026 | } | |
4027 | ||
e1623446 | 4028 | IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n", |
b481de9c | 4029 | (unsigned long long) pci_resource_len(pdev, 0)); |
e1623446 | 4030 | IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base); |
b481de9c | 4031 | |
cee53ddb KA |
4032 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
4033 | * PCI Tx retries from interfering with C3 CPU state */ | |
4034 | pci_write_config_byte(pdev, 0x41, 0x00); | |
b481de9c | 4035 | |
731a29b7 | 4036 | /* these spin locks will be used in apm_ops.init and EEPROM access |
a8b50a0a MA |
4037 | * we should init now |
4038 | */ | |
4039 | spin_lock_init(&priv->reg_lock); | |
731a29b7 | 4040 | spin_lock_init(&priv->lock); |
a8b50a0a | 4041 | |
4843b5a7 RC |
4042 | /* |
4043 | * stop and reset the on-board processor just in case it is in a | |
4044 | * strange state ... like being left stranded by a primary kernel | |
4045 | * and this is now the kdump kernel trying to start up | |
4046 | */ | |
4047 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); | |
4048 | ||
cee53ddb KA |
4049 | /*********************** |
4050 | * 4. Read EEPROM | |
4051 | * ********************/ | |
90a30a02 | 4052 | |
cee53ddb | 4053 | /* Read the EEPROM */ |
e6148917 | 4054 | err = iwl_eeprom_init(priv); |
cee53ddb | 4055 | if (err) { |
15b1687c | 4056 | IWL_ERR(priv, "Unable to init EEPROM\n"); |
c8f16138 | 4057 | goto out_iounmap; |
cee53ddb KA |
4058 | } |
4059 | /* MAC Address location in EEPROM same for 3945/4965 */ | |
e6148917 SO |
4060 | eeprom = (struct iwl3945_eeprom *)priv->eeprom; |
4061 | memcpy(priv->mac_addr, eeprom->mac_address, ETH_ALEN); | |
e1623446 | 4062 | IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->mac_addr); |
cee53ddb | 4063 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); |
b481de9c | 4064 | |
cee53ddb KA |
4065 | /*********************** |
4066 | * 5. Setup HW Constants | |
4067 | * ********************/ | |
b481de9c | 4068 | /* Device-specific setup */ |
3832ec9d | 4069 | if (iwl3945_hw_set_hw_params(priv)) { |
15b1687c | 4070 | IWL_ERR(priv, "failed to set hw settings\n"); |
c8f16138 | 4071 | goto out_eeprom_free; |
b481de9c ZY |
4072 | } |
4073 | ||
cee53ddb KA |
4074 | /*********************** |
4075 | * 6. Setup priv | |
4076 | * ********************/ | |
cee53ddb | 4077 | |
90a30a02 | 4078 | err = iwl3945_init_drv(priv); |
b481de9c | 4079 | if (err) { |
90a30a02 | 4080 | IWL_ERR(priv, "initializing driver failed\n"); |
c8f16138 | 4081 | goto out_unset_hw_params; |
b481de9c ZY |
4082 | } |
4083 | ||
978785a3 TW |
4084 | IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s\n", |
4085 | priv->cfg->name); | |
cee53ddb | 4086 | |
cee53ddb | 4087 | /*********************** |
09f9bf79 | 4088 | * 7. Setup Services |
cee53ddb KA |
4089 | * ********************/ |
4090 | ||
4091 | spin_lock_irqsave(&priv->lock, flags); | |
ed3b932e | 4092 | iwl_disable_interrupts(priv); |
cee53ddb KA |
4093 | spin_unlock_irqrestore(&priv->lock, flags); |
4094 | ||
2663516d HS |
4095 | pci_enable_msi(priv->pci_dev); |
4096 | ||
ef850d7c MA |
4097 | err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr, |
4098 | IRQF_SHARED, DRV_NAME, priv); | |
2663516d HS |
4099 | if (err) { |
4100 | IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq); | |
4101 | goto out_disable_msi; | |
4102 | } | |
4103 | ||
cee53ddb | 4104 | err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
849e0dce | 4105 | if (err) { |
15b1687c | 4106 | IWL_ERR(priv, "failed to create sysfs device attributes\n"); |
90a30a02 | 4107 | goto out_release_irq; |
849e0dce | 4108 | } |
849e0dce | 4109 | |
8ccde88a SO |
4110 | iwl_set_rxon_channel(priv, |
4111 | &priv->bands[IEEE80211_BAND_2GHZ].channels[5]); | |
cee53ddb KA |
4112 | iwl3945_setup_deferred_work(priv); |
4113 | iwl3945_setup_rx_handlers(priv); | |
008a9e3e | 4114 | iwl_power_initialize(priv); |
cee53ddb | 4115 | |
cee53ddb | 4116 | /********************************* |
09f9bf79 | 4117 | * 8. Setup and Register mac80211 |
cee53ddb KA |
4118 | * *******************************/ |
4119 | ||
2a4ddaab | 4120 | iwl_enable_interrupts(priv); |
b481de9c | 4121 | |
2a4ddaab AK |
4122 | err = iwl3945_setup_mac(priv); |
4123 | if (err) | |
4124 | goto out_remove_sysfs; | |
cee53ddb | 4125 | |
a75fbe8d AK |
4126 | err = iwl_dbgfs_register(priv, DRV_NAME); |
4127 | if (err) | |
4128 | IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); | |
4129 | ||
2663516d HS |
4130 | /* Start monitoring the killswitch */ |
4131 | queue_delayed_work(priv->workqueue, &priv->rfkill_poll, | |
4132 | 2 * HZ); | |
4133 | ||
b481de9c ZY |
4134 | return 0; |
4135 | ||
cee53ddb | 4136 | out_remove_sysfs: |
c8f16138 RC |
4137 | destroy_workqueue(priv->workqueue); |
4138 | priv->workqueue = NULL; | |
cee53ddb | 4139 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c | 4140 | out_release_irq: |
2663516d | 4141 | free_irq(priv->pci_dev->irq, priv); |
2663516d HS |
4142 | out_disable_msi: |
4143 | pci_disable_msi(priv->pci_dev); | |
c8f16138 RC |
4144 | iwlcore_free_geos(priv); |
4145 | iwl_free_channel_map(priv); | |
4146 | out_unset_hw_params: | |
4147 | iwl3945_unset_hw_params(priv); | |
4148 | out_eeprom_free: | |
4149 | iwl_eeprom_free(priv); | |
b481de9c ZY |
4150 | out_iounmap: |
4151 | pci_iounmap(pdev, priv->hw_base); | |
4152 | out_pci_release_regions: | |
4153 | pci_release_regions(pdev); | |
4154 | out_pci_disable_device: | |
b481de9c | 4155 | pci_set_drvdata(pdev, NULL); |
623d563e | 4156 | pci_disable_device(pdev); |
b481de9c | 4157 | out_ieee80211_free_hw: |
20594eb0 | 4158 | iwl_free_traffic_mem(priv); |
d7c76f4c | 4159 | ieee80211_free_hw(priv->hw); |
b481de9c ZY |
4160 | out: |
4161 | return err; | |
4162 | } | |
4163 | ||
c83dbf68 | 4164 | static void __devexit iwl3945_pci_remove(struct pci_dev *pdev) |
b481de9c | 4165 | { |
4a8a4322 | 4166 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
0359facc | 4167 | unsigned long flags; |
b481de9c ZY |
4168 | |
4169 | if (!priv) | |
4170 | return; | |
4171 | ||
e1623446 | 4172 | IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); |
b481de9c | 4173 | |
a75fbe8d AK |
4174 | iwl_dbgfs_unregister(priv); |
4175 | ||
b481de9c | 4176 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
b24d22b1 | 4177 | |
d552bfb6 KA |
4178 | if (priv->mac80211_registered) { |
4179 | ieee80211_unregister_hw(priv->hw); | |
4180 | priv->mac80211_registered = 0; | |
4181 | } else { | |
4182 | iwl3945_down(priv); | |
4183 | } | |
b481de9c | 4184 | |
c166b25a BC |
4185 | /* |
4186 | * Make sure device is reset to low power before unloading driver. | |
4187 | * This may be redundant with iwl_down(), but there are paths to | |
4188 | * run iwl_down() without calling apm_ops.stop(), and there are | |
4189 | * paths to avoid running iwl_down() at all before leaving driver. | |
4190 | * This (inexpensive) call *makes sure* device is reset. | |
4191 | */ | |
4192 | priv->cfg->ops->lib->apm_ops.stop(priv); | |
4193 | ||
0359facc MA |
4194 | /* make sure we flush any pending irq or |
4195 | * tasklet for the driver | |
4196 | */ | |
4197 | spin_lock_irqsave(&priv->lock, flags); | |
ed3b932e | 4198 | iwl_disable_interrupts(priv); |
0359facc MA |
4199 | spin_unlock_irqrestore(&priv->lock, flags); |
4200 | ||
4201 | iwl_synchronize_irq(priv); | |
4202 | ||
bb8c093b | 4203 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c | 4204 | |
71d449b5 | 4205 | cancel_delayed_work_sync(&priv->rfkill_poll); |
2663516d | 4206 | |
bb8c093b | 4207 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
4208 | |
4209 | if (priv->rxq.bd) | |
df833b1d | 4210 | iwl3945_rx_queue_free(priv, &priv->rxq); |
bb8c093b | 4211 | iwl3945_hw_txq_ctx_free(priv); |
b481de9c | 4212 | |
3832ec9d | 4213 | iwl3945_unset_hw_params(priv); |
c587de0b | 4214 | iwl_clear_stations_table(priv); |
b481de9c | 4215 | |
6ef89d0a MA |
4216 | /*netif_stop_queue(dev); */ |
4217 | flush_workqueue(priv->workqueue); | |
4218 | ||
bb8c093b | 4219 | /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes |
b481de9c ZY |
4220 | * priv->workqueue... so we can't take down the workqueue |
4221 | * until now... */ | |
4222 | destroy_workqueue(priv->workqueue); | |
4223 | priv->workqueue = NULL; | |
20594eb0 | 4224 | iwl_free_traffic_mem(priv); |
b481de9c | 4225 | |
2663516d HS |
4226 | free_irq(pdev->irq, priv); |
4227 | pci_disable_msi(pdev); | |
4228 | ||
b481de9c ZY |
4229 | pci_iounmap(pdev, priv->hw_base); |
4230 | pci_release_regions(pdev); | |
4231 | pci_disable_device(pdev); | |
4232 | pci_set_drvdata(pdev, NULL); | |
4233 | ||
e6148917 | 4234 | iwl_free_channel_map(priv); |
534166de | 4235 | iwlcore_free_geos(priv); |
805cee5b | 4236 | kfree(priv->scan); |
b481de9c ZY |
4237 | if (priv->ibss_beacon) |
4238 | dev_kfree_skb(priv->ibss_beacon); | |
4239 | ||
4240 | ieee80211_free_hw(priv->hw); | |
4241 | } | |
4242 | ||
b481de9c ZY |
4243 | |
4244 | /***************************************************************************** | |
4245 | * | |
4246 | * driver and module entry point | |
4247 | * | |
4248 | *****************************************************************************/ | |
4249 | ||
bb8c093b | 4250 | static struct pci_driver iwl3945_driver = { |
b481de9c | 4251 | .name = DRV_NAME, |
bb8c093b CH |
4252 | .id_table = iwl3945_hw_card_ids, |
4253 | .probe = iwl3945_pci_probe, | |
4254 | .remove = __devexit_p(iwl3945_pci_remove), | |
b481de9c | 4255 | #ifdef CONFIG_PM |
6da3a13e WYG |
4256 | .suspend = iwl_pci_suspend, |
4257 | .resume = iwl_pci_resume, | |
b481de9c ZY |
4258 | #endif |
4259 | }; | |
4260 | ||
bb8c093b | 4261 | static int __init iwl3945_init(void) |
b481de9c ZY |
4262 | { |
4263 | ||
4264 | int ret; | |
4265 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
4266 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 RC |
4267 | |
4268 | ret = iwl3945_rate_control_register(); | |
4269 | if (ret) { | |
a3139c59 SO |
4270 | printk(KERN_ERR DRV_NAME |
4271 | "Unable to register rate control algorithm: %d\n", ret); | |
897e1cf2 RC |
4272 | return ret; |
4273 | } | |
4274 | ||
bb8c093b | 4275 | ret = pci_register_driver(&iwl3945_driver); |
b481de9c | 4276 | if (ret) { |
a3139c59 | 4277 | printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n"); |
897e1cf2 | 4278 | goto error_register; |
b481de9c | 4279 | } |
b481de9c ZY |
4280 | |
4281 | return ret; | |
897e1cf2 | 4282 | |
897e1cf2 RC |
4283 | error_register: |
4284 | iwl3945_rate_control_unregister(); | |
4285 | return ret; | |
b481de9c ZY |
4286 | } |
4287 | ||
bb8c093b | 4288 | static void __exit iwl3945_exit(void) |
b481de9c | 4289 | { |
bb8c093b | 4290 | pci_unregister_driver(&iwl3945_driver); |
897e1cf2 | 4291 | iwl3945_rate_control_unregister(); |
b481de9c ZY |
4292 | } |
4293 | ||
a0987a8d | 4294 | MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX)); |
25cb6cad | 4295 | |
4e30cb69 | 4296 | module_param_named(antenna, iwl3945_mod_params.antenna, int, S_IRUGO); |
b481de9c | 4297 | MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); |
4e30cb69 | 4298 | module_param_named(swcrypto, iwl3945_mod_params.sw_crypto, int, S_IRUGO); |
9c74d9fb SO |
4299 | MODULE_PARM_DESC(swcrypto, |
4300 | "using software crypto (default 1 [software])\n"); | |
a562a9dd | 4301 | #ifdef CONFIG_IWLWIFI_DEBUG |
4e30cb69 | 4302 | module_param_named(debug, iwl_debug_level, uint, S_IRUGO | S_IWUSR); |
b481de9c | 4303 | MODULE_PARM_DESC(debug, "debug output mask"); |
a562a9dd | 4304 | #endif |
4e30cb69 WYG |
4305 | module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, |
4306 | int, S_IRUGO); | |
b481de9c | 4307 | MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)"); |
4e30cb69 | 4308 | module_param_named(fw_restart3945, iwl3945_mod_params.restart_fw, int, S_IRUGO); |
af48d048 SO |
4309 | MODULE_PARM_DESC(fw_restart3945, "restart firmware in case of error"); |
4310 | ||
bb8c093b CH |
4311 | module_exit(iwl3945_exit); |
4312 | module_init(iwl3945_init); |