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b481de9c ZY |
1 | /****************************************************************************** |
2 | * | |
01f8162a | 3 | * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved. |
b481de9c ZY |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
759ef89f | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
b481de9c ZY |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
b481de9c ZY |
30 | #include <linux/kernel.h> |
31 | #include <linux/module.h> | |
b481de9c ZY |
32 | #include <linux/init.h> |
33 | #include <linux/pci.h> | |
34 | #include <linux/dma-mapping.h> | |
35 | #include <linux/delay.h> | |
36 | #include <linux/skbuff.h> | |
37 | #include <linux/netdevice.h> | |
38 | #include <linux/wireless.h> | |
39 | #include <linux/firmware.h> | |
b481de9c ZY |
40 | #include <linux/etherdevice.h> |
41 | #include <linux/if_arp.h> | |
42 | ||
43 | #include <net/ieee80211_radiotap.h> | |
44 | #include <net/mac80211.h> | |
45 | ||
46 | #include <asm/div64.h> | |
47 | ||
a3139c59 SO |
48 | #define DRV_NAME "iwl3945" |
49 | ||
dbb6654c WT |
50 | #include "iwl-fh.h" |
51 | #include "iwl-3945-fh.h" | |
600c0e11 | 52 | #include "iwl-commands.h" |
17f841cd | 53 | #include "iwl-sta.h" |
b481de9c ZY |
54 | #include "iwl-3945.h" |
55 | #include "iwl-helpers.h" | |
5747d47f | 56 | #include "iwl-core.h" |
d20b3c65 | 57 | #include "iwl-dev.h" |
b481de9c | 58 | |
b481de9c ZY |
59 | /* |
60 | * module name, copyright, version, etc. | |
b481de9c ZY |
61 | */ |
62 | ||
63 | #define DRV_DESCRIPTION \ | |
64 | "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" | |
65 | ||
d08853a3 | 66 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
67 | #define VD "d" |
68 | #else | |
69 | #define VD | |
70 | #endif | |
71 | ||
c8b0e6e1 | 72 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
73 | #define VS "s" |
74 | #else | |
75 | #define VS | |
76 | #endif | |
77 | ||
eaa686c3 | 78 | #define IWL39_VERSION "1.2.26k" VD VS |
01f8162a | 79 | #define DRV_COPYRIGHT "Copyright(c) 2003-2009 Intel Corporation" |
a7b75207 | 80 | #define DRV_AUTHOR "<ilw@linux.intel.com>" |
eaa686c3 | 81 | #define DRV_VERSION IWL39_VERSION |
b481de9c | 82 | |
b481de9c ZY |
83 | |
84 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
85 | MODULE_VERSION(DRV_VERSION); | |
a7b75207 | 86 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
b481de9c ZY |
87 | MODULE_LICENSE("GPL"); |
88 | ||
df878d8f KA |
89 | /* module parameters */ |
90 | struct iwl_mod_params iwl3945_mod_params = { | |
9c74d9fb | 91 | .sw_crypto = 1, |
af48d048 | 92 | .restart_fw = 1, |
df878d8f KA |
93 | /* the rest are 0 by default */ |
94 | }; | |
95 | ||
7e4bca5e SO |
96 | /** |
97 | * iwl3945_get_antenna_flags - Get antenna flags for RXON command | |
98 | * @priv: eeprom and antenna fields are used to determine antenna flags | |
99 | * | |
100 | * priv->eeprom39 is used to determine if antenna AUX/MAIN are reversed | |
101 | * iwl3945_mod_params.antenna specifies the antenna diversity mode: | |
102 | * | |
103 | * IWL_ANTENNA_DIVERSITY - NIC selects best antenna by itself | |
104 | * IWL_ANTENNA_MAIN - Force MAIN antenna | |
105 | * IWL_ANTENNA_AUX - Force AUX antenna | |
106 | */ | |
107 | __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv) | |
108 | { | |
109 | struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; | |
110 | ||
111 | switch (iwl3945_mod_params.antenna) { | |
112 | case IWL_ANTENNA_DIVERSITY: | |
113 | return 0; | |
114 | ||
115 | case IWL_ANTENNA_MAIN: | |
116 | if (eeprom->antenna_switch_type) | |
117 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; | |
118 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; | |
119 | ||
120 | case IWL_ANTENNA_AUX: | |
121 | if (eeprom->antenna_switch_type) | |
122 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; | |
123 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; | |
124 | } | |
125 | ||
126 | /* bad antenna selector value */ | |
127 | IWL_ERR(priv, "Bad antenna selector value (0x%x)\n", | |
128 | iwl3945_mod_params.antenna); | |
129 | ||
130 | return 0; /* "diversity" is default if error */ | |
131 | } | |
132 | ||
6e21f15c | 133 | static int iwl3945_set_ccmp_dynamic_key_info(struct iwl_priv *priv, |
b481de9c ZY |
134 | struct ieee80211_key_conf *keyconf, |
135 | u8 sta_id) | |
136 | { | |
137 | unsigned long flags; | |
138 | __le16 key_flags = 0; | |
6e21f15c AK |
139 | int ret; |
140 | ||
141 | key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); | |
142 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
143 | ||
144 | if (sta_id == priv->hw_params.bcast_sta_id) | |
145 | key_flags |= STA_KEY_MULTICAST_MSK; | |
146 | ||
147 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
148 | keyconf->hw_key_idx = keyconf->keyidx; | |
149 | key_flags &= ~STA_KEY_FLG_INVALID; | |
b481de9c | 150 | |
b481de9c | 151 | spin_lock_irqsave(&priv->sta_lock, flags); |
c587de0b TW |
152 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; |
153 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; | |
154 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, | |
b481de9c ZY |
155 | keyconf->keylen); |
156 | ||
c587de0b | 157 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, |
b481de9c | 158 | keyconf->keylen); |
6e21f15c | 159 | |
c587de0b | 160 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
6e21f15c | 161 | == STA_KEY_FLG_NO_ENC) |
c587de0b | 162 | priv->stations[sta_id].sta.key.key_offset = |
6e21f15c AK |
163 | iwl_get_free_ucode_key_index(priv); |
164 | /* else, we are overriding an existing key => no need to allocated room | |
165 | * in uCode. */ | |
166 | ||
c587de0b | 167 | WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, |
6e21f15c AK |
168 | "no space for a new key"); |
169 | ||
c587de0b TW |
170 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
171 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
172 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
b481de9c | 173 | |
6e21f15c AK |
174 | IWL_DEBUG_INFO(priv, "hwcrypto: modify ucode station key info\n"); |
175 | ||
c587de0b | 176 | ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
6e21f15c | 177 | |
b481de9c ZY |
178 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
179 | ||
6e21f15c AK |
180 | return ret; |
181 | } | |
182 | ||
183 | static int iwl3945_set_tkip_dynamic_key_info(struct iwl_priv *priv, | |
184 | struct ieee80211_key_conf *keyconf, | |
185 | u8 sta_id) | |
186 | { | |
187 | return -EOPNOTSUPP; | |
188 | } | |
189 | ||
190 | static int iwl3945_set_wep_dynamic_key_info(struct iwl_priv *priv, | |
191 | struct ieee80211_key_conf *keyconf, | |
192 | u8 sta_id) | |
193 | { | |
194 | return -EOPNOTSUPP; | |
b481de9c ZY |
195 | } |
196 | ||
4a8a4322 | 197 | static int iwl3945_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id) |
b481de9c ZY |
198 | { |
199 | unsigned long flags; | |
200 | ||
201 | spin_lock_irqsave(&priv->sta_lock, flags); | |
c587de0b TW |
202 | memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl_hw_key)); |
203 | memset(&priv->stations[sta_id].sta.key, 0, | |
4c897253 | 204 | sizeof(struct iwl4965_keyinfo)); |
c587de0b TW |
205 | priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC; |
206 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
207 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
b481de9c ZY |
208 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
209 | ||
e1623446 | 210 | IWL_DEBUG_INFO(priv, "hwcrypto: clear ucode station key info\n"); |
c587de0b | 211 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, 0); |
b481de9c ZY |
212 | return 0; |
213 | } | |
214 | ||
fa11d525 | 215 | static int iwl3945_set_dynamic_key(struct iwl_priv *priv, |
6e21f15c AK |
216 | struct ieee80211_key_conf *keyconf, u8 sta_id) |
217 | { | |
218 | int ret = 0; | |
219 | ||
220 | keyconf->hw_key_idx = HW_KEY_DYNAMIC; | |
221 | ||
222 | switch (keyconf->alg) { | |
223 | case ALG_CCMP: | |
224 | ret = iwl3945_set_ccmp_dynamic_key_info(priv, keyconf, sta_id); | |
225 | break; | |
226 | case ALG_TKIP: | |
227 | ret = iwl3945_set_tkip_dynamic_key_info(priv, keyconf, sta_id); | |
228 | break; | |
229 | case ALG_WEP: | |
230 | ret = iwl3945_set_wep_dynamic_key_info(priv, keyconf, sta_id); | |
231 | break; | |
232 | default: | |
1e680233 | 233 | IWL_ERR(priv, "Unknown alg: %s alg = %d\n", __func__, keyconf->alg); |
6e21f15c AK |
234 | ret = -EINVAL; |
235 | } | |
236 | ||
237 | IWL_DEBUG_WEP(priv, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n", | |
238 | keyconf->alg, keyconf->keylen, keyconf->keyidx, | |
239 | sta_id, ret); | |
240 | ||
241 | return ret; | |
242 | } | |
243 | ||
244 | static int iwl3945_remove_static_key(struct iwl_priv *priv) | |
245 | { | |
246 | int ret = -EOPNOTSUPP; | |
247 | ||
248 | return ret; | |
249 | } | |
250 | ||
251 | static int iwl3945_set_static_key(struct iwl_priv *priv, | |
252 | struct ieee80211_key_conf *key) | |
253 | { | |
254 | if (key->alg == ALG_WEP) | |
255 | return -EOPNOTSUPP; | |
256 | ||
257 | IWL_ERR(priv, "Static key invalid: alg %d\n", key->alg); | |
258 | return -EINVAL; | |
259 | } | |
260 | ||
4a8a4322 | 261 | static void iwl3945_clear_free_frames(struct iwl_priv *priv) |
b481de9c ZY |
262 | { |
263 | struct list_head *element; | |
264 | ||
e1623446 | 265 | IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n", |
b481de9c ZY |
266 | priv->frames_count); |
267 | ||
268 | while (!list_empty(&priv->free_frames)) { | |
269 | element = priv->free_frames.next; | |
270 | list_del(element); | |
bb8c093b | 271 | kfree(list_entry(element, struct iwl3945_frame, list)); |
b481de9c ZY |
272 | priv->frames_count--; |
273 | } | |
274 | ||
275 | if (priv->frames_count) { | |
39aadf8c | 276 | IWL_WARN(priv, "%d frames still in use. Did we lose one?\n", |
b481de9c ZY |
277 | priv->frames_count); |
278 | priv->frames_count = 0; | |
279 | } | |
280 | } | |
281 | ||
4a8a4322 | 282 | static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl_priv *priv) |
b481de9c | 283 | { |
bb8c093b | 284 | struct iwl3945_frame *frame; |
b481de9c ZY |
285 | struct list_head *element; |
286 | if (list_empty(&priv->free_frames)) { | |
287 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); | |
288 | if (!frame) { | |
15b1687c | 289 | IWL_ERR(priv, "Could not allocate frame!\n"); |
b481de9c ZY |
290 | return NULL; |
291 | } | |
292 | ||
293 | priv->frames_count++; | |
294 | return frame; | |
295 | } | |
296 | ||
297 | element = priv->free_frames.next; | |
298 | list_del(element); | |
bb8c093b | 299 | return list_entry(element, struct iwl3945_frame, list); |
b481de9c ZY |
300 | } |
301 | ||
4a8a4322 | 302 | static void iwl3945_free_frame(struct iwl_priv *priv, struct iwl3945_frame *frame) |
b481de9c ZY |
303 | { |
304 | memset(frame, 0, sizeof(*frame)); | |
305 | list_add(&frame->list, &priv->free_frames); | |
306 | } | |
307 | ||
4a8a4322 | 308 | unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv, |
b481de9c | 309 | struct ieee80211_hdr *hdr, |
73ec1cc2 | 310 | int left) |
b481de9c ZY |
311 | { |
312 | ||
8ccde88a | 313 | if (!iwl_is_associated(priv) || !priv->ibss_beacon || |
05c914fe JB |
314 | ((priv->iw_mode != NL80211_IFTYPE_ADHOC) && |
315 | (priv->iw_mode != NL80211_IFTYPE_AP))) | |
b481de9c ZY |
316 | return 0; |
317 | ||
318 | if (priv->ibss_beacon->len > left) | |
319 | return 0; | |
320 | ||
321 | memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len); | |
322 | ||
323 | return priv->ibss_beacon->len; | |
324 | } | |
325 | ||
4a8a4322 | 326 | static int iwl3945_send_beacon_cmd(struct iwl_priv *priv) |
b481de9c | 327 | { |
bb8c093b | 328 | struct iwl3945_frame *frame; |
b481de9c ZY |
329 | unsigned int frame_size; |
330 | int rc; | |
331 | u8 rate; | |
332 | ||
bb8c093b | 333 | frame = iwl3945_get_free_frame(priv); |
b481de9c ZY |
334 | |
335 | if (!frame) { | |
15b1687c | 336 | IWL_ERR(priv, "Could not obtain free frame buffer for beacon " |
b481de9c ZY |
337 | "command.\n"); |
338 | return -ENOMEM; | |
339 | } | |
340 | ||
8ccde88a | 341 | rate = iwl_rate_get_lowest_plcp(priv); |
b481de9c | 342 | |
bb8c093b | 343 | frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate); |
b481de9c | 344 | |
518099a8 | 345 | rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size, |
b481de9c ZY |
346 | &frame->u.cmd[0]); |
347 | ||
bb8c093b | 348 | iwl3945_free_frame(priv, frame); |
b481de9c ZY |
349 | |
350 | return rc; | |
351 | } | |
352 | ||
4a8a4322 | 353 | static void iwl3945_unset_hw_params(struct iwl_priv *priv) |
b481de9c | 354 | { |
3832ec9d | 355 | if (priv->shared_virt) |
b481de9c | 356 | pci_free_consistent(priv->pci_dev, |
bb8c093b | 357 | sizeof(struct iwl3945_shared), |
3832ec9d AK |
358 | priv->shared_virt, |
359 | priv->shared_phys); | |
b481de9c ZY |
360 | } |
361 | ||
4a8a4322 | 362 | static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv, |
e039fa4a | 363 | struct ieee80211_tx_info *info, |
c2acea8e | 364 | struct iwl_device_cmd *cmd, |
b481de9c | 365 | struct sk_buff *skb_frag, |
6e21f15c | 366 | int sta_id) |
b481de9c | 367 | { |
9744c91f | 368 | struct iwl3945_tx_cmd *tx_cmd = (struct iwl3945_tx_cmd *)cmd->cmd.payload; |
c587de0b | 369 | struct iwl_hw_key *keyinfo = &priv->stations[sta_id].keyinfo; |
b481de9c ZY |
370 | |
371 | switch (keyinfo->alg) { | |
372 | case ALG_CCMP: | |
9744c91f AK |
373 | tx_cmd->sec_ctl = TX_CMD_SEC_CCM; |
374 | memcpy(tx_cmd->key, keyinfo->key, keyinfo->keylen); | |
e1623446 | 375 | IWL_DEBUG_TX(priv, "tx_cmd with AES hwcrypto\n"); |
b481de9c ZY |
376 | break; |
377 | ||
378 | case ALG_TKIP: | |
b481de9c ZY |
379 | break; |
380 | ||
381 | case ALG_WEP: | |
9744c91f | 382 | tx_cmd->sec_ctl = TX_CMD_SEC_WEP | |
e039fa4a | 383 | (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT; |
b481de9c ZY |
384 | |
385 | if (keyinfo->keylen == 13) | |
9744c91f | 386 | tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128; |
b481de9c | 387 | |
9744c91f | 388 | memcpy(&tx_cmd->key[3], keyinfo->key, keyinfo->keylen); |
b481de9c | 389 | |
e1623446 | 390 | IWL_DEBUG_TX(priv, "Configuring packet for WEP encryption " |
e039fa4a | 391 | "with key %d\n", info->control.hw_key->hw_key_idx); |
b481de9c ZY |
392 | break; |
393 | ||
b481de9c | 394 | default: |
978785a3 | 395 | IWL_ERR(priv, "Unknown encode alg %d\n", keyinfo->alg); |
b481de9c ZY |
396 | break; |
397 | } | |
398 | } | |
399 | ||
400 | /* | |
401 | * handle build REPLY_TX command notification. | |
402 | */ | |
4a8a4322 | 403 | static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv, |
c2acea8e | 404 | struct iwl_device_cmd *cmd, |
e039fa4a | 405 | struct ieee80211_tx_info *info, |
e52119c5 | 406 | struct ieee80211_hdr *hdr, u8 std_id) |
b481de9c | 407 | { |
9744c91f AK |
408 | struct iwl3945_tx_cmd *tx_cmd = (struct iwl3945_tx_cmd *)cmd->cmd.payload; |
409 | __le32 tx_flags = tx_cmd->tx_flags; | |
fd7c8a40 | 410 | __le16 fc = hdr->frame_control; |
b481de9c | 411 | |
9744c91f | 412 | tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
e039fa4a | 413 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { |
b481de9c | 414 | tx_flags |= TX_CMD_FLG_ACK_MSK; |
fd7c8a40 | 415 | if (ieee80211_is_mgmt(fc)) |
b481de9c | 416 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
fd7c8a40 | 417 | if (ieee80211_is_probe_resp(fc) && |
b481de9c ZY |
418 | !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) |
419 | tx_flags |= TX_CMD_FLG_TSF_MSK; | |
420 | } else { | |
421 | tx_flags &= (~TX_CMD_FLG_ACK_MSK); | |
422 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; | |
423 | } | |
424 | ||
9744c91f | 425 | tx_cmd->sta_id = std_id; |
8b7b1e05 | 426 | if (ieee80211_has_morefrags(fc)) |
b481de9c ZY |
427 | tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; |
428 | ||
fd7c8a40 HH |
429 | if (ieee80211_is_data_qos(fc)) { |
430 | u8 *qc = ieee80211_get_qos_ctl(hdr); | |
9744c91f | 431 | tx_cmd->tid_tspec = qc[0] & 0xf; |
b481de9c | 432 | tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 433 | } else { |
b481de9c | 434 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; |
54dbb525 | 435 | } |
b481de9c | 436 | |
37dc70fe | 437 | priv->cfg->ops->utils->rts_tx_cmd_flag(info, &tx_flags); |
b481de9c ZY |
438 | |
439 | if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK)) | |
440 | tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK; | |
441 | ||
442 | tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); | |
fd7c8a40 HH |
443 | if (ieee80211_is_mgmt(fc)) { |
444 | if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) | |
9744c91f | 445 | tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3); |
b481de9c | 446 | else |
9744c91f | 447 | tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2); |
ab53d8af | 448 | } else { |
9744c91f | 449 | tx_cmd->timeout.pm_frame_timeout = 0; |
ab53d8af | 450 | } |
b481de9c | 451 | |
9744c91f AK |
452 | tx_cmd->driver_txop = 0; |
453 | tx_cmd->tx_flags = tx_flags; | |
454 | tx_cmd->next_frame_len = 0; | |
b481de9c ZY |
455 | } |
456 | ||
b481de9c ZY |
457 | /* |
458 | * start REPLY_TX command process | |
459 | */ | |
4a8a4322 | 460 | static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb) |
b481de9c ZY |
461 | { |
462 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; | |
e039fa4a | 463 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
9744c91f | 464 | struct iwl3945_tx_cmd *tx_cmd; |
188cf6c7 | 465 | struct iwl_tx_queue *txq = NULL; |
d20b3c65 | 466 | struct iwl_queue *q = NULL; |
c2acea8e JB |
467 | struct iwl_device_cmd *out_cmd; |
468 | struct iwl_cmd_meta *out_meta; | |
b481de9c ZY |
469 | dma_addr_t phys_addr; |
470 | dma_addr_t txcmd_phys; | |
e52119c5 | 471 | int txq_id = skb_get_queue_mapping(skb); |
df833b1d | 472 | u16 len, idx, len_org, hdr_len; /* TODO: len_org is not used */ |
54dbb525 TW |
473 | u8 id; |
474 | u8 unicast; | |
b481de9c | 475 | u8 sta_id; |
54dbb525 | 476 | u8 tid = 0; |
b481de9c | 477 | u16 seq_number = 0; |
fd7c8a40 | 478 | __le16 fc; |
b481de9c | 479 | u8 wait_write_ptr = 0; |
54dbb525 | 480 | u8 *qc = NULL; |
b481de9c ZY |
481 | unsigned long flags; |
482 | int rc; | |
483 | ||
484 | spin_lock_irqsave(&priv->lock, flags); | |
775a6e27 | 485 | if (iwl_is_rfkill(priv)) { |
e1623446 | 486 | IWL_DEBUG_DROP(priv, "Dropping - RF KILL\n"); |
b481de9c ZY |
487 | goto drop_unlock; |
488 | } | |
489 | ||
e039fa4a | 490 | if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) { |
15b1687c | 491 | IWL_ERR(priv, "ERROR: No TX rate available.\n"); |
b481de9c ZY |
492 | goto drop_unlock; |
493 | } | |
494 | ||
495 | unicast = !is_multicast_ether_addr(hdr->addr1); | |
496 | id = 0; | |
497 | ||
fd7c8a40 | 498 | fc = hdr->frame_control; |
b481de9c | 499 | |
d08853a3 | 500 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c | 501 | if (ieee80211_is_auth(fc)) |
e1623446 | 502 | IWL_DEBUG_TX(priv, "Sending AUTH frame\n"); |
fd7c8a40 | 503 | else if (ieee80211_is_assoc_req(fc)) |
e1623446 | 504 | IWL_DEBUG_TX(priv, "Sending ASSOC frame\n"); |
fd7c8a40 | 505 | else if (ieee80211_is_reassoc_req(fc)) |
e1623446 | 506 | IWL_DEBUG_TX(priv, "Sending REASSOC frame\n"); |
b481de9c ZY |
507 | #endif |
508 | ||
aa065263 | 509 | /* drop all non-injected data frame if we are not associated */ |
914233d6 | 510 | if (ieee80211_is_data(fc) && |
aa065263 | 511 | !(info->flags & IEEE80211_TX_CTL_INJECTED) && |
8ccde88a | 512 | (!iwl_is_associated(priv) || |
05c914fe | 513 | ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) { |
e1623446 | 514 | IWL_DEBUG_DROP(priv, "Dropping - !iwl_is_associated\n"); |
b481de9c ZY |
515 | goto drop_unlock; |
516 | } | |
517 | ||
518 | spin_unlock_irqrestore(&priv->lock, flags); | |
519 | ||
7294ec95 | 520 | hdr_len = ieee80211_hdrlen(fc); |
6440adb5 BC |
521 | |
522 | /* Find (or create) index into station table for destination station */ | |
aa065263 GS |
523 | if (info->flags & IEEE80211_TX_CTL_INJECTED) |
524 | sta_id = priv->hw_params.bcast_sta_id; | |
525 | else | |
526 | sta_id = iwl_get_sta_id(priv, hdr); | |
b481de9c | 527 | if (sta_id == IWL_INVALID_STATION) { |
e1623446 | 528 | IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n", |
e174961c | 529 | hdr->addr1); |
b481de9c ZY |
530 | goto drop; |
531 | } | |
532 | ||
e1623446 | 533 | IWL_DEBUG_RATE(priv, "station Id %d\n", sta_id); |
b481de9c | 534 | |
fd7c8a40 HH |
535 | if (ieee80211_is_data_qos(fc)) { |
536 | qc = ieee80211_get_qos_ctl(hdr); | |
7294ec95 | 537 | tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; |
e6a6cf4c RC |
538 | if (unlikely(tid >= MAX_TID_COUNT)) |
539 | goto drop; | |
c587de0b | 540 | seq_number = priv->stations[sta_id].tid[tid].seq_number & |
b481de9c ZY |
541 | IEEE80211_SCTL_SEQ; |
542 | hdr->seq_ctrl = cpu_to_le16(seq_number) | | |
543 | (hdr->seq_ctrl & | |
c1b4aa3f | 544 | cpu_to_le16(IEEE80211_SCTL_FRAG)); |
b481de9c ZY |
545 | seq_number += 0x10; |
546 | } | |
6440adb5 BC |
547 | |
548 | /* Descriptor for chosen Tx queue */ | |
188cf6c7 | 549 | txq = &priv->txq[txq_id]; |
b481de9c ZY |
550 | q = &txq->q; |
551 | ||
552 | spin_lock_irqsave(&priv->lock, flags); | |
553 | ||
fc4b6853 | 554 | idx = get_cmd_index(q, q->write_ptr, 0); |
b481de9c | 555 | |
6440adb5 | 556 | /* Set up driver data for this TFD */ |
dbb6654c | 557 | memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info)); |
fc4b6853 | 558 | txq->txb[q->write_ptr].skb[0] = skb; |
6440adb5 BC |
559 | |
560 | /* Init first empty entry in queue's array of Tx/cmd buffers */ | |
188cf6c7 | 561 | out_cmd = txq->cmd[idx]; |
c2acea8e | 562 | out_meta = &txq->meta[idx]; |
9744c91f | 563 | tx_cmd = (struct iwl3945_tx_cmd *)out_cmd->cmd.payload; |
b481de9c | 564 | memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); |
9744c91f | 565 | memset(tx_cmd, 0, sizeof(*tx_cmd)); |
6440adb5 BC |
566 | |
567 | /* | |
568 | * Set up the Tx-command (not MAC!) header. | |
569 | * Store the chosen Tx queue and TFD index within the sequence field; | |
570 | * after Tx, uCode's Tx response will return this value so driver can | |
571 | * locate the frame within the tx queue and do post-tx processing. | |
572 | */ | |
b481de9c ZY |
573 | out_cmd->hdr.cmd = REPLY_TX; |
574 | out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | | |
fc4b6853 | 575 | INDEX_TO_SEQ(q->write_ptr))); |
6440adb5 BC |
576 | |
577 | /* Copy MAC header from skb into command buffer */ | |
9744c91f | 578 | memcpy(tx_cmd->hdr, hdr, hdr_len); |
b481de9c | 579 | |
df833b1d RC |
580 | |
581 | if (info->control.hw_key) | |
582 | iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, sta_id); | |
583 | ||
584 | /* TODO need this for burst mode later on */ | |
585 | iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, sta_id); | |
586 | ||
587 | /* set is_hcca to 0; it probably will never be implemented */ | |
588 | iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0); | |
589 | ||
590 | /* Total # bytes to be transmitted */ | |
591 | len = (u16)skb->len; | |
9744c91f | 592 | tx_cmd->len = cpu_to_le16(len); |
df833b1d | 593 | |
20594eb0 | 594 | iwl_dbg_log_tx_data_frame(priv, len, hdr); |
22fdf3c9 | 595 | iwl_update_stats(priv, true, fc, len); |
9744c91f AK |
596 | tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; |
597 | tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; | |
df833b1d RC |
598 | |
599 | if (!ieee80211_has_morefrags(hdr->frame_control)) { | |
600 | txq->need_update = 1; | |
601 | if (qc) | |
c587de0b | 602 | priv->stations[sta_id].tid[tid].seq_number = seq_number; |
df833b1d RC |
603 | } else { |
604 | wait_write_ptr = 1; | |
605 | txq->need_update = 0; | |
606 | } | |
607 | ||
608 | IWL_DEBUG_TX(priv, "sequence nr = 0X%x \n", | |
609 | le16_to_cpu(out_cmd->hdr.sequence)); | |
9744c91f AK |
610 | IWL_DEBUG_TX(priv, "tx_flags = 0X%x \n", le32_to_cpu(tx_cmd->tx_flags)); |
611 | iwl_print_hex_dump(priv, IWL_DL_TX, tx_cmd, sizeof(*tx_cmd)); | |
612 | iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr, | |
df833b1d RC |
613 | ieee80211_hdrlen(fc)); |
614 | ||
6440adb5 BC |
615 | /* |
616 | * Use the first empty entry in this queue's command buffer array | |
617 | * to contain the Tx command and MAC header concatenated together | |
618 | * (payload data will be in another buffer). | |
619 | * Size of this varies, due to varying MAC header length. | |
620 | * If end is not dword aligned, we'll have 2 extra bytes at the end | |
621 | * of the MAC header (device reads on dword boundaries). | |
622 | * We'll tell device about this padding later. | |
623 | */ | |
3832ec9d | 624 | len = sizeof(struct iwl3945_tx_cmd) + |
4c897253 | 625 | sizeof(struct iwl_cmd_header) + hdr_len; |
b481de9c ZY |
626 | |
627 | len_org = len; | |
628 | len = (len + 3) & ~3; | |
629 | ||
630 | if (len_org != len) | |
631 | len_org = 1; | |
632 | else | |
633 | len_org = 0; | |
634 | ||
6440adb5 BC |
635 | /* Physical address of this Tx command's header (not MAC header!), |
636 | * within command buffer array. */ | |
df833b1d RC |
637 | txcmd_phys = pci_map_single(priv->pci_dev, &out_cmd->hdr, |
638 | len, PCI_DMA_TODEVICE); | |
639 | /* we do not map meta data ... so we can safely access address to | |
640 | * provide to unmap command*/ | |
c2acea8e JB |
641 | pci_unmap_addr_set(out_meta, mapping, txcmd_phys); |
642 | pci_unmap_len_set(out_meta, len, len); | |
b481de9c | 643 | |
6440adb5 BC |
644 | /* Add buffer containing Tx command and MAC(!) header to TFD's |
645 | * first entry */ | |
7aaa1d79 SO |
646 | priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq, |
647 | txcmd_phys, len, 1, 0); | |
b481de9c | 648 | |
b481de9c | 649 | |
6440adb5 BC |
650 | /* Set up TFD's 2nd entry to point directly to remainder of skb, |
651 | * if any (802.11 null frames have no payload). */ | |
b481de9c ZY |
652 | len = skb->len - hdr_len; |
653 | if (len) { | |
654 | phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len, | |
655 | len, PCI_DMA_TODEVICE); | |
7aaa1d79 SO |
656 | priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq, |
657 | phys_addr, len, | |
658 | 0, U32_PAD(len)); | |
b481de9c ZY |
659 | } |
660 | ||
b481de9c | 661 | |
6440adb5 | 662 | /* Tell device the write index *just past* this latest filled TFD */ |
c54b679d | 663 | q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); |
4f3602c8 | 664 | rc = iwl_txq_update_write_ptr(priv, txq); |
b481de9c ZY |
665 | spin_unlock_irqrestore(&priv->lock, flags); |
666 | ||
667 | if (rc) | |
668 | return rc; | |
669 | ||
d20b3c65 | 670 | if ((iwl_queue_space(q) < q->high_mark) |
b481de9c ZY |
671 | && priv->mac80211_registered) { |
672 | if (wait_write_ptr) { | |
673 | spin_lock_irqsave(&priv->lock, flags); | |
674 | txq->need_update = 1; | |
4f3602c8 | 675 | iwl_txq_update_write_ptr(priv, txq); |
b481de9c ZY |
676 | spin_unlock_irqrestore(&priv->lock, flags); |
677 | } | |
678 | ||
e4e72fb4 | 679 | iwl_stop_queue(priv, skb_get_queue_mapping(skb)); |
b481de9c ZY |
680 | } |
681 | ||
682 | return 0; | |
683 | ||
684 | drop_unlock: | |
685 | spin_unlock_irqrestore(&priv->lock, flags); | |
686 | drop: | |
687 | return -1; | |
688 | } | |
689 | ||
c8b0e6e1 | 690 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
691 | |
692 | #include "iwl-spectrum.h" | |
693 | ||
694 | #define BEACON_TIME_MASK_LOW 0x00FFFFFF | |
695 | #define BEACON_TIME_MASK_HIGH 0xFF000000 | |
696 | #define TIME_UNIT 1024 | |
697 | ||
698 | /* | |
699 | * extended beacon time format | |
700 | * time in usec will be changed into a 32-bit value in 8:24 format | |
701 | * the high 1 byte is the beacon counts | |
702 | * the lower 3 bytes is the time in usec within one beacon interval | |
703 | */ | |
704 | ||
bb8c093b | 705 | static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval) |
b481de9c ZY |
706 | { |
707 | u32 quot; | |
708 | u32 rem; | |
709 | u32 interval = beacon_interval * 1024; | |
710 | ||
711 | if (!interval || !usec) | |
712 | return 0; | |
713 | ||
714 | quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24); | |
715 | rem = (usec % interval) & BEACON_TIME_MASK_LOW; | |
716 | ||
717 | return (quot << 24) + rem; | |
718 | } | |
719 | ||
720 | /* base is usually what we get from ucode with each received frame, | |
721 | * the same as HW timer counter counting down | |
722 | */ | |
723 | ||
bb8c093b | 724 | static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval) |
b481de9c ZY |
725 | { |
726 | u32 base_low = base & BEACON_TIME_MASK_LOW; | |
727 | u32 addon_low = addon & BEACON_TIME_MASK_LOW; | |
728 | u32 interval = beacon_interval * TIME_UNIT; | |
729 | u32 res = (base & BEACON_TIME_MASK_HIGH) + | |
730 | (addon & BEACON_TIME_MASK_HIGH); | |
731 | ||
732 | if (base_low > addon_low) | |
733 | res += base_low - addon_low; | |
734 | else if (base_low < addon_low) { | |
735 | res += interval + base_low - addon_low; | |
736 | res += (1 << 24); | |
737 | } else | |
738 | res += (1 << 24); | |
739 | ||
740 | return cpu_to_le32(res); | |
741 | } | |
742 | ||
4a8a4322 | 743 | static int iwl3945_get_measurement(struct iwl_priv *priv, |
b481de9c ZY |
744 | struct ieee80211_measurement_params *params, |
745 | u8 type) | |
746 | { | |
600c0e11 | 747 | struct iwl_spectrum_cmd spectrum; |
2f301227 | 748 | struct iwl_rx_packet *pkt; |
c2d79b48 | 749 | struct iwl_host_cmd cmd = { |
b481de9c ZY |
750 | .id = REPLY_SPECTRUM_MEASUREMENT_CMD, |
751 | .data = (void *)&spectrum, | |
c2acea8e | 752 | .flags = CMD_WANT_SKB, |
b481de9c ZY |
753 | }; |
754 | u32 add_time = le64_to_cpu(params->start_time); | |
755 | int rc; | |
756 | int spectrum_resp_status; | |
757 | int duration = le16_to_cpu(params->duration); | |
758 | ||
8ccde88a | 759 | if (iwl_is_associated(priv)) |
b481de9c | 760 | add_time = |
bb8c093b | 761 | iwl3945_usecs_to_beacons( |
b481de9c ZY |
762 | le64_to_cpu(params->start_time) - priv->last_tsf, |
763 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
764 | ||
765 | memset(&spectrum, 0, sizeof(spectrum)); | |
766 | ||
767 | spectrum.channel_count = cpu_to_le16(1); | |
768 | spectrum.flags = | |
769 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; | |
770 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; | |
771 | cmd.len = sizeof(spectrum); | |
772 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); | |
773 | ||
8ccde88a | 774 | if (iwl_is_associated(priv)) |
b481de9c | 775 | spectrum.start_time = |
bb8c093b | 776 | iwl3945_add_beacon_time(priv->last_beacon_time, |
b481de9c ZY |
777 | add_time, |
778 | le16_to_cpu(priv->rxon_timing.beacon_interval)); | |
779 | else | |
780 | spectrum.start_time = 0; | |
781 | ||
782 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); | |
783 | spectrum.channels[0].channel = params->channel; | |
784 | spectrum.channels[0].type = type; | |
8ccde88a | 785 | if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK) |
b481de9c ZY |
786 | spectrum.flags |= RXON_FLG_BAND_24G_MSK | |
787 | RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK; | |
788 | ||
518099a8 | 789 | rc = iwl_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
790 | if (rc) |
791 | return rc; | |
792 | ||
2f301227 ZY |
793 | pkt = (struct iwl_rx_packet *)cmd.reply_page; |
794 | if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { | |
15b1687c | 795 | IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n"); |
b481de9c ZY |
796 | rc = -EIO; |
797 | } | |
798 | ||
2f301227 | 799 | spectrum_resp_status = le16_to_cpu(pkt->u.spectrum.status); |
b481de9c ZY |
800 | switch (spectrum_resp_status) { |
801 | case 0: /* Command will be handled */ | |
2f301227 | 802 | if (pkt->u.spectrum.id != 0xff) { |
e1623446 | 803 | IWL_DEBUG_INFO(priv, "Replaced existing measurement: %d\n", |
2f301227 | 804 | pkt->u.spectrum.id); |
b481de9c ZY |
805 | priv->measurement_status &= ~MEASUREMENT_READY; |
806 | } | |
807 | priv->measurement_status |= MEASUREMENT_ACTIVE; | |
808 | rc = 0; | |
809 | break; | |
810 | ||
811 | case 1: /* Command will not be handled */ | |
812 | rc = -EAGAIN; | |
813 | break; | |
814 | } | |
815 | ||
2f301227 | 816 | free_pages(cmd.reply_page, priv->hw_params.rx_page_order); |
b481de9c ZY |
817 | |
818 | return rc; | |
819 | } | |
820 | #endif | |
821 | ||
4a8a4322 | 822 | static void iwl3945_rx_reply_alive(struct iwl_priv *priv, |
6100b588 | 823 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 824 | { |
2f301227 | 825 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
3d24a9f7 | 826 | struct iwl_alive_resp *palive; |
b481de9c ZY |
827 | struct delayed_work *pwork; |
828 | ||
829 | palive = &pkt->u.alive_frame; | |
830 | ||
e1623446 | 831 | IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision " |
b481de9c ZY |
832 | "0x%01X 0x%01X\n", |
833 | palive->is_valid, palive->ver_type, | |
834 | palive->ver_subtype); | |
835 | ||
836 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
e1623446 | 837 | IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); |
3d24a9f7 TW |
838 | memcpy(&priv->card_alive_init, &pkt->u.alive_frame, |
839 | sizeof(struct iwl_alive_resp)); | |
b481de9c ZY |
840 | pwork = &priv->init_alive_start; |
841 | } else { | |
e1623446 | 842 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
b481de9c | 843 | memcpy(&priv->card_alive, &pkt->u.alive_frame, |
3d24a9f7 | 844 | sizeof(struct iwl_alive_resp)); |
b481de9c | 845 | pwork = &priv->alive_start; |
bb8c093b | 846 | iwl3945_disable_events(priv); |
b481de9c ZY |
847 | } |
848 | ||
849 | /* We delay the ALIVE response by 5ms to | |
850 | * give the HW RF Kill time to activate... */ | |
851 | if (palive->is_valid == UCODE_VALID_OK) | |
852 | queue_delayed_work(priv->workqueue, pwork, | |
853 | msecs_to_jiffies(5)); | |
854 | else | |
39aadf8c | 855 | IWL_WARN(priv, "uCode did not respond OK.\n"); |
b481de9c ZY |
856 | } |
857 | ||
4a8a4322 | 858 | static void iwl3945_rx_reply_add_sta(struct iwl_priv *priv, |
6100b588 | 859 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 860 | { |
c7e035a9 | 861 | #ifdef CONFIG_IWLWIFI_DEBUG |
2f301227 | 862 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
c7e035a9 | 863 | #endif |
b481de9c | 864 | |
e1623446 | 865 | IWL_DEBUG_RX(priv, "Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status); |
b481de9c ZY |
866 | return; |
867 | } | |
868 | ||
bb8c093b | 869 | static void iwl3945_bg_beacon_update(struct work_struct *work) |
b481de9c | 870 | { |
4a8a4322 AK |
871 | struct iwl_priv *priv = |
872 | container_of(work, struct iwl_priv, beacon_update); | |
b481de9c ZY |
873 | struct sk_buff *beacon; |
874 | ||
875 | /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ | |
e039fa4a | 876 | beacon = ieee80211_beacon_get(priv->hw, priv->vif); |
b481de9c ZY |
877 | |
878 | if (!beacon) { | |
15b1687c | 879 | IWL_ERR(priv, "update beacon failed\n"); |
b481de9c ZY |
880 | return; |
881 | } | |
882 | ||
883 | mutex_lock(&priv->mutex); | |
884 | /* new beacon skb is allocated every time; dispose previous.*/ | |
885 | if (priv->ibss_beacon) | |
886 | dev_kfree_skb(priv->ibss_beacon); | |
887 | ||
888 | priv->ibss_beacon = beacon; | |
889 | mutex_unlock(&priv->mutex); | |
890 | ||
bb8c093b | 891 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
892 | } |
893 | ||
4a8a4322 | 894 | static void iwl3945_rx_beacon_notif(struct iwl_priv *priv, |
6100b588 | 895 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 896 | { |
d08853a3 | 897 | #ifdef CONFIG_IWLWIFI_DEBUG |
2f301227 | 898 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
bb8c093b | 899 | struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status); |
b481de9c ZY |
900 | u8 rate = beacon->beacon_notify_hdr.rate; |
901 | ||
e1623446 | 902 | IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d " |
b481de9c ZY |
903 | "tsf %d %d rate %d\n", |
904 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, | |
905 | beacon->beacon_notify_hdr.failure_frame, | |
906 | le32_to_cpu(beacon->ibss_mgr_status), | |
907 | le32_to_cpu(beacon->high_tsf), | |
908 | le32_to_cpu(beacon->low_tsf), rate); | |
909 | #endif | |
910 | ||
05c914fe | 911 | if ((priv->iw_mode == NL80211_IFTYPE_AP) && |
b481de9c ZY |
912 | (!test_bit(STATUS_EXIT_PENDING, &priv->status))) |
913 | queue_work(priv->workqueue, &priv->beacon_update); | |
914 | } | |
915 | ||
b481de9c ZY |
916 | /* Handle notification from uCode that card's power state is changing |
917 | * due to software, hardware, or critical temperature RFKILL */ | |
4a8a4322 | 918 | static void iwl3945_rx_card_state_notif(struct iwl_priv *priv, |
6100b588 | 919 | struct iwl_rx_mem_buffer *rxb) |
b481de9c | 920 | { |
2f301227 | 921 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
b481de9c ZY |
922 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
923 | unsigned long status = priv->status; | |
924 | ||
4c423a2b | 925 | IWL_WARN(priv, "Card state received: HW:%s SW:%s\n", |
b481de9c ZY |
926 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", |
927 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
928 | ||
5d49f498 | 929 | iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
b481de9c ZY |
930 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
931 | ||
932 | if (flags & HW_CARD_DISABLED) | |
933 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
934 | else | |
935 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
936 | ||
937 | ||
af0053d6 | 938 | iwl_scan_cancel(priv); |
b481de9c ZY |
939 | |
940 | if ((test_bit(STATUS_RF_KILL_HW, &status) != | |
a60e77e5 JB |
941 | test_bit(STATUS_RF_KILL_HW, &priv->status))) |
942 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, | |
943 | test_bit(STATUS_RF_KILL_HW, &priv->status)); | |
b481de9c ZY |
944 | else |
945 | wake_up_interruptible(&priv->wait_command_queue); | |
946 | } | |
947 | ||
948 | /** | |
bb8c093b | 949 | * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks |
b481de9c ZY |
950 | * |
951 | * Setup the RX handlers for each of the reply types sent from the uCode | |
952 | * to the host. | |
953 | * | |
954 | * This function chains into the hardware specific files for them to setup | |
955 | * any hardware specific handlers as well. | |
956 | */ | |
4a8a4322 | 957 | static void iwl3945_setup_rx_handlers(struct iwl_priv *priv) |
b481de9c | 958 | { |
bb8c093b CH |
959 | priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive; |
960 | priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta; | |
261b9c33 | 961 | priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error; |
8ccde88a | 962 | priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa; |
030f05ed | 963 | priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif; |
b481de9c | 964 | priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] = |
030f05ed | 965 | iwl_rx_pm_debug_statistics_notif; |
bb8c093b | 966 | priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif; |
b481de9c | 967 | |
9fbab516 BC |
968 | /* |
969 | * The same handler is used for both the REPLY to a discrete | |
970 | * statistics request from the host as well as for the periodic | |
971 | * statistics notifications (after received beacons) from the uCode. | |
b481de9c | 972 | */ |
bb8c093b CH |
973 | priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics; |
974 | priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics; | |
b481de9c | 975 | |
261b9c33 | 976 | iwl_setup_spectrum_handlers(priv); |
cade0eb2 | 977 | iwl_setup_rx_scan_handlers(priv); |
bb8c093b | 978 | priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif; |
b481de9c | 979 | |
9fbab516 | 980 | /* Set up hardware specific Rx handlers */ |
bb8c093b | 981 | iwl3945_hw_rx_handler_setup(priv); |
b481de9c ZY |
982 | } |
983 | ||
b481de9c ZY |
984 | /************************** RX-FUNCTIONS ****************************/ |
985 | /* | |
986 | * Rx theory of operation | |
987 | * | |
988 | * The host allocates 32 DMA target addresses and passes the host address | |
989 | * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is | |
990 | * 0 to 31 | |
991 | * | |
992 | * Rx Queue Indexes | |
993 | * The host/firmware share two index registers for managing the Rx buffers. | |
994 | * | |
995 | * The READ index maps to the first position that the firmware may be writing | |
996 | * to -- the driver can read up to (but not including) this position and get | |
997 | * good data. | |
998 | * The READ index is managed by the firmware once the card is enabled. | |
999 | * | |
1000 | * The WRITE index maps to the last position the driver has read from -- the | |
1001 | * position preceding WRITE is the last slot the firmware can place a packet. | |
1002 | * | |
1003 | * The queue is empty (no good data) if WRITE = READ - 1, and is full if | |
1004 | * WRITE = READ. | |
1005 | * | |
9fbab516 | 1006 | * During initialization, the host sets up the READ queue position to the first |
b481de9c ZY |
1007 | * INDEX position, and WRITE to the last (READ - 1 wrapped) |
1008 | * | |
9fbab516 | 1009 | * When the firmware places a packet in a buffer, it will advance the READ index |
b481de9c ZY |
1010 | * and fire the RX interrupt. The driver can then query the READ index and |
1011 | * process as many packets as possible, moving the WRITE index forward as it | |
1012 | * resets the Rx queue buffers with new memory. | |
1013 | * | |
1014 | * The management in the driver is as follows: | |
1015 | * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When | |
1016 | * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled | |
01ebd063 | 1017 | * to replenish the iwl->rxq->rx_free. |
bb8c093b | 1018 | * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the |
b481de9c ZY |
1019 | * iwl->rxq is replenished and the READ INDEX is updated (updating the |
1020 | * 'processed' and 'read' driver indexes as well) | |
1021 | * + A received packet is processed and handed to the kernel network stack, | |
1022 | * detached from the iwl->rxq. The driver 'processed' index is updated. | |
1023 | * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free | |
1024 | * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ | |
1025 | * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there | |
1026 | * were enough free buffers and RX_STALLED is set it is cleared. | |
1027 | * | |
1028 | * | |
1029 | * Driver sequence: | |
1030 | * | |
9fbab516 | 1031 | * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls |
bb8c093b | 1032 | * iwl3945_rx_queue_restock |
9fbab516 | 1033 | * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx |
b481de9c ZY |
1034 | * queue, updates firmware pointers, and updates |
1035 | * the WRITE index. If insufficient rx_free buffers | |
bb8c093b | 1036 | * are available, schedules iwl3945_rx_replenish |
b481de9c ZY |
1037 | * |
1038 | * -- enable interrupts -- | |
6100b588 | 1039 | * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the |
b481de9c ZY |
1040 | * READ INDEX, detaching the SKB from the pool. |
1041 | * Moves the packet buffer from queue to rx_used. | |
bb8c093b | 1042 | * Calls iwl3945_rx_queue_restock to refill any empty |
b481de9c ZY |
1043 | * slots. |
1044 | * ... | |
1045 | * | |
1046 | */ | |
1047 | ||
b481de9c | 1048 | /** |
9fbab516 | 1049 | * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr |
b481de9c | 1050 | */ |
4a8a4322 | 1051 | static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl_priv *priv, |
b481de9c ZY |
1052 | dma_addr_t dma_addr) |
1053 | { | |
1054 | return cpu_to_le32((u32)dma_addr); | |
1055 | } | |
1056 | ||
1057 | /** | |
bb8c093b | 1058 | * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool |
b481de9c | 1059 | * |
9fbab516 | 1060 | * If there are slots in the RX queue that need to be restocked, |
b481de9c | 1061 | * and we have free pre-allocated buffers, fill the ranks as much |
9fbab516 | 1062 | * as we can, pulling from rx_free. |
b481de9c ZY |
1063 | * |
1064 | * This moves the 'write' index forward to catch up with 'processed', and | |
1065 | * also updates the memory address in the firmware to reference the new | |
1066 | * target buffer. | |
1067 | */ | |
4a8a4322 | 1068 | static int iwl3945_rx_queue_restock(struct iwl_priv *priv) |
b481de9c | 1069 | { |
cc2f362c | 1070 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c | 1071 | struct list_head *element; |
6100b588 | 1072 | struct iwl_rx_mem_buffer *rxb; |
b481de9c ZY |
1073 | unsigned long flags; |
1074 | int write, rc; | |
1075 | ||
1076 | spin_lock_irqsave(&rxq->lock, flags); | |
1077 | write = rxq->write & ~0x7; | |
37d68317 | 1078 | while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) { |
6440adb5 | 1079 | /* Get next free Rx buffer, remove from free list */ |
b481de9c | 1080 | element = rxq->rx_free.next; |
6100b588 | 1081 | rxb = list_entry(element, struct iwl_rx_mem_buffer, list); |
b481de9c | 1082 | list_del(element); |
6440adb5 BC |
1083 | |
1084 | /* Point to Rx buffer via next RBD in circular buffer */ | |
2f301227 | 1085 | rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->page_dma); |
b481de9c ZY |
1086 | rxq->queue[rxq->write] = rxb; |
1087 | rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; | |
1088 | rxq->free_count--; | |
1089 | } | |
1090 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1091 | /* If the pre-allocated buffer pool is dropping low, schedule to | |
1092 | * refill it */ | |
1093 | if (rxq->free_count <= RX_LOW_WATERMARK) | |
1094 | queue_work(priv->workqueue, &priv->rx_replenish); | |
1095 | ||
1096 | ||
6440adb5 BC |
1097 | /* If we've added more space for the firmware to place data, tell it. |
1098 | * Increment device's write pointer in multiples of 8. */ | |
d14d4440 | 1099 | if ((rxq->write_actual != (rxq->write & ~0x7)) |
b481de9c ZY |
1100 | || (abs(rxq->write - rxq->read) > 7)) { |
1101 | spin_lock_irqsave(&rxq->lock, flags); | |
1102 | rxq->need_update = 1; | |
1103 | spin_unlock_irqrestore(&rxq->lock, flags); | |
141c43a3 | 1104 | rc = iwl_rx_queue_update_write_ptr(priv, rxq); |
b481de9c ZY |
1105 | if (rc) |
1106 | return rc; | |
1107 | } | |
1108 | ||
1109 | return 0; | |
1110 | } | |
1111 | ||
1112 | /** | |
bb8c093b | 1113 | * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free |
b481de9c ZY |
1114 | * |
1115 | * When moving to rx_free an SKB is allocated for the slot. | |
1116 | * | |
bb8c093b | 1117 | * Also restock the Rx queue via iwl3945_rx_queue_restock. |
01ebd063 | 1118 | * This is called as a scheduled work item (except for during initialization) |
b481de9c | 1119 | */ |
d14d4440 | 1120 | static void iwl3945_rx_allocate(struct iwl_priv *priv, gfp_t priority) |
b481de9c | 1121 | { |
cc2f362c | 1122 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c | 1123 | struct list_head *element; |
6100b588 | 1124 | struct iwl_rx_mem_buffer *rxb; |
2f301227 | 1125 | struct page *page; |
b481de9c | 1126 | unsigned long flags; |
29b1b268 | 1127 | gfp_t gfp_mask = priority; |
72240498 AK |
1128 | |
1129 | while (1) { | |
1130 | spin_lock_irqsave(&rxq->lock, flags); | |
1131 | ||
1132 | if (list_empty(&rxq->rx_used)) { | |
1133 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1134 | return; | |
1135 | } | |
72240498 | 1136 | spin_unlock_irqrestore(&rxq->lock, flags); |
6440adb5 | 1137 | |
f82a924c | 1138 | if (rxq->free_count > RX_LOW_WATERMARK) |
29b1b268 | 1139 | gfp_mask |= __GFP_NOWARN; |
2f301227 ZY |
1140 | |
1141 | if (priv->hw_params.rx_page_order > 0) | |
29b1b268 | 1142 | gfp_mask |= __GFP_COMP; |
2f301227 | 1143 | |
6440adb5 | 1144 | /* Alloc a new receive buffer */ |
29b1b268 | 1145 | page = alloc_pages(gfp_mask, priv->hw_params.rx_page_order); |
2f301227 | 1146 | if (!page) { |
b481de9c | 1147 | if (net_ratelimit()) |
f82a924c RC |
1148 | IWL_DEBUG_INFO(priv, "Failed to allocate SKB buffer.\n"); |
1149 | if ((rxq->free_count <= RX_LOW_WATERMARK) && | |
1150 | net_ratelimit()) | |
1151 | IWL_CRIT(priv, "Failed to allocate SKB buffer with %s. Only %u free buffers remaining.\n", | |
1152 | priority == GFP_ATOMIC ? "GFP_ATOMIC" : "GFP_KERNEL", | |
1153 | rxq->free_count); | |
b481de9c ZY |
1154 | /* We don't reschedule replenish work here -- we will |
1155 | * call the restock method and if it still needs | |
1156 | * more buffers it will schedule replenish */ | |
1157 | break; | |
1158 | } | |
12342c47 | 1159 | |
de0bd508 RC |
1160 | spin_lock_irqsave(&rxq->lock, flags); |
1161 | if (list_empty(&rxq->rx_used)) { | |
1162 | spin_unlock_irqrestore(&rxq->lock, flags); | |
2f301227 | 1163 | __free_pages(page, priv->hw_params.rx_page_order); |
de0bd508 RC |
1164 | return; |
1165 | } | |
1166 | element = rxq->rx_used.next; | |
1167 | rxb = list_entry(element, struct iwl_rx_mem_buffer, list); | |
1168 | list_del(element); | |
1169 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1170 | ||
2f301227 | 1171 | rxb->page = page; |
6440adb5 | 1172 | /* Get physical address of RB/SKB */ |
2f301227 ZY |
1173 | rxb->page_dma = pci_map_page(priv->pci_dev, page, 0, |
1174 | PAGE_SIZE << priv->hw_params.rx_page_order, | |
1175 | PCI_DMA_FROMDEVICE); | |
72240498 AK |
1176 | |
1177 | spin_lock_irqsave(&rxq->lock, flags); | |
2f301227 | 1178 | |
b481de9c ZY |
1179 | list_add_tail(&rxb->list, &rxq->rx_free); |
1180 | rxq->free_count++; | |
2f301227 ZY |
1181 | priv->alloc_rxb_page++; |
1182 | ||
72240498 | 1183 | spin_unlock_irqrestore(&rxq->lock, flags); |
b481de9c | 1184 | } |
5c0eef96 MA |
1185 | } |
1186 | ||
df833b1d RC |
1187 | void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq) |
1188 | { | |
1189 | unsigned long flags; | |
1190 | int i; | |
1191 | spin_lock_irqsave(&rxq->lock, flags); | |
1192 | INIT_LIST_HEAD(&rxq->rx_free); | |
1193 | INIT_LIST_HEAD(&rxq->rx_used); | |
1194 | /* Fill the rx_used queue with _all_ of the Rx buffers */ | |
1195 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { | |
1196 | /* In the reset function, these buffers may have been allocated | |
1197 | * to an SKB, so we need to unmap and free potential storage */ | |
2f301227 ZY |
1198 | if (rxq->pool[i].page != NULL) { |
1199 | pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma, | |
1200 | PAGE_SIZE << priv->hw_params.rx_page_order, | |
1201 | PCI_DMA_FROMDEVICE); | |
1202 | priv->alloc_rxb_page--; | |
1203 | __free_pages(rxq->pool[i].page, | |
1204 | priv->hw_params.rx_page_order); | |
1205 | rxq->pool[i].page = NULL; | |
df833b1d RC |
1206 | } |
1207 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); | |
1208 | } | |
1209 | ||
1210 | /* Set us so that we have processed and used all buffers, but have | |
1211 | * not restocked the Rx queue with fresh buffers */ | |
1212 | rxq->read = rxq->write = 0; | |
d14d4440 | 1213 | rxq->write_actual = 0; |
2f301227 | 1214 | rxq->free_count = 0; |
df833b1d RC |
1215 | spin_unlock_irqrestore(&rxq->lock, flags); |
1216 | } | |
df833b1d | 1217 | |
5c0eef96 MA |
1218 | void iwl3945_rx_replenish(void *data) |
1219 | { | |
4a8a4322 | 1220 | struct iwl_priv *priv = data; |
5c0eef96 MA |
1221 | unsigned long flags; |
1222 | ||
d14d4440 | 1223 | iwl3945_rx_allocate(priv, GFP_KERNEL); |
b481de9c ZY |
1224 | |
1225 | spin_lock_irqsave(&priv->lock, flags); | |
bb8c093b | 1226 | iwl3945_rx_queue_restock(priv); |
b481de9c ZY |
1227 | spin_unlock_irqrestore(&priv->lock, flags); |
1228 | } | |
1229 | ||
d14d4440 AK |
1230 | static void iwl3945_rx_replenish_now(struct iwl_priv *priv) |
1231 | { | |
1232 | iwl3945_rx_allocate(priv, GFP_ATOMIC); | |
1233 | ||
1234 | iwl3945_rx_queue_restock(priv); | |
1235 | } | |
1236 | ||
1237 | ||
df833b1d RC |
1238 | /* Assumes that the skb field of the buffers in 'pool' is kept accurate. |
1239 | * If an SKB has been detached, the POOL needs to have its SKB set to NULL | |
1240 | * This free routine walks the list of POOL entries and if SKB is set to | |
1241 | * non NULL it is unmapped and freed | |
1242 | */ | |
1243 | static void iwl3945_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq) | |
1244 | { | |
1245 | int i; | |
1246 | for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { | |
2f301227 ZY |
1247 | if (rxq->pool[i].page != NULL) { |
1248 | pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma, | |
1249 | PAGE_SIZE << priv->hw_params.rx_page_order, | |
1250 | PCI_DMA_FROMDEVICE); | |
1251 | __free_pages(rxq->pool[i].page, | |
1252 | priv->hw_params.rx_page_order); | |
1253 | rxq->pool[i].page = NULL; | |
1254 | priv->alloc_rxb_page--; | |
df833b1d RC |
1255 | } |
1256 | } | |
1257 | ||
1258 | pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd, | |
1259 | rxq->dma_addr); | |
1260 | pci_free_consistent(priv->pci_dev, sizeof(struct iwl_rb_status), | |
1261 | rxq->rb_stts, rxq->rb_stts_dma); | |
1262 | rxq->bd = NULL; | |
1263 | rxq->rb_stts = NULL; | |
1264 | } | |
df833b1d RC |
1265 | |
1266 | ||
b481de9c ZY |
1267 | /* Convert linear signal-to-noise ratio into dB */ |
1268 | static u8 ratio2dB[100] = { | |
1269 | /* 0 1 2 3 4 5 6 7 8 9 */ | |
1270 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ | |
1271 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ | |
1272 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ | |
1273 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ | |
1274 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ | |
1275 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ | |
1276 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ | |
1277 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ | |
1278 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ | |
1279 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ | |
1280 | }; | |
1281 | ||
1282 | /* Calculates a relative dB value from a ratio of linear | |
1283 | * (i.e. not dB) signal levels. | |
1284 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ | |
bb8c093b | 1285 | int iwl3945_calc_db_from_ratio(int sig_ratio) |
b481de9c | 1286 | { |
221c80cf AB |
1287 | /* 1000:1 or higher just report as 60 dB */ |
1288 | if (sig_ratio >= 1000) | |
b481de9c ZY |
1289 | return 60; |
1290 | ||
221c80cf | 1291 | /* 100:1 or higher, divide by 10 and use table, |
b481de9c | 1292 | * add 20 dB to make up for divide by 10 */ |
221c80cf | 1293 | if (sig_ratio >= 100) |
3ac7f146 | 1294 | return 20 + (int)ratio2dB[sig_ratio/10]; |
b481de9c ZY |
1295 | |
1296 | /* We shouldn't see this */ | |
1297 | if (sig_ratio < 1) | |
1298 | return 0; | |
1299 | ||
1300 | /* Use table for ratios 1:1 - 99:1 */ | |
1301 | return (int)ratio2dB[sig_ratio]; | |
1302 | } | |
1303 | ||
1304 | #define PERFECT_RSSI (-20) /* dBm */ | |
1305 | #define WORST_RSSI (-95) /* dBm */ | |
1306 | #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI) | |
1307 | ||
1308 | /* Calculate an indication of rx signal quality (a percentage, not dBm!). | |
1309 | * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info | |
1310 | * about formulas used below. */ | |
bb8c093b | 1311 | int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm) |
b481de9c ZY |
1312 | { |
1313 | int sig_qual; | |
1314 | int degradation = PERFECT_RSSI - rssi_dbm; | |
1315 | ||
1316 | /* If we get a noise measurement, use signal-to-noise ratio (SNR) | |
1317 | * as indicator; formula is (signal dbm - noise dbm). | |
1318 | * SNR at or above 40 is a great signal (100%). | |
1319 | * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator. | |
1320 | * Weakest usable signal is usually 10 - 15 dB SNR. */ | |
1321 | if (noise_dbm) { | |
1322 | if (rssi_dbm - noise_dbm >= 40) | |
1323 | return 100; | |
1324 | else if (rssi_dbm < noise_dbm) | |
1325 | return 0; | |
1326 | sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2; | |
1327 | ||
1328 | /* Else use just the signal level. | |
1329 | * This formula is a least squares fit of data points collected and | |
1330 | * compared with a reference system that had a percentage (%) display | |
1331 | * for signal quality. */ | |
1332 | } else | |
1333 | sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation * | |
1334 | (15 * RSSI_RANGE + 62 * degradation)) / | |
1335 | (RSSI_RANGE * RSSI_RANGE); | |
1336 | ||
1337 | if (sig_qual > 100) | |
1338 | sig_qual = 100; | |
1339 | else if (sig_qual < 1) | |
1340 | sig_qual = 0; | |
1341 | ||
1342 | return sig_qual; | |
1343 | } | |
1344 | ||
1345 | /** | |
9fbab516 | 1346 | * iwl3945_rx_handle - Main entry function for receiving responses from uCode |
b481de9c ZY |
1347 | * |
1348 | * Uses the priv->rx_handlers callback function array to invoke | |
1349 | * the appropriate handlers, including command responses, | |
1350 | * frame-received notifications, and other notifications. | |
1351 | */ | |
4a8a4322 | 1352 | static void iwl3945_rx_handle(struct iwl_priv *priv) |
b481de9c | 1353 | { |
6100b588 | 1354 | struct iwl_rx_mem_buffer *rxb; |
3d24a9f7 | 1355 | struct iwl_rx_packet *pkt; |
cc2f362c | 1356 | struct iwl_rx_queue *rxq = &priv->rxq; |
b481de9c ZY |
1357 | u32 r, i; |
1358 | int reclaim; | |
1359 | unsigned long flags; | |
5c0eef96 | 1360 | u8 fill_rx = 0; |
d68ab680 | 1361 | u32 count = 8; |
d14d4440 | 1362 | int total_empty = 0; |
b481de9c | 1363 | |
6440adb5 BC |
1364 | /* uCode's read index (stored in shared DRAM) indicates the last Rx |
1365 | * buffer that the driver may process (last buffer filled by ucode). */ | |
8cd812bc | 1366 | r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; |
b481de9c ZY |
1367 | i = rxq->read; |
1368 | ||
d14d4440 | 1369 | /* calculate total frames need to be restock after handling RX */ |
7300515d | 1370 | total_empty = r - rxq->write_actual; |
d14d4440 AK |
1371 | if (total_empty < 0) |
1372 | total_empty += RX_QUEUE_SIZE; | |
1373 | ||
1374 | if (total_empty > (RX_QUEUE_SIZE / 2)) | |
5c0eef96 | 1375 | fill_rx = 1; |
b481de9c ZY |
1376 | /* Rx interrupt, but nothing sent from uCode */ |
1377 | if (i == r) | |
af472a95 | 1378 | IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i); |
b481de9c ZY |
1379 | |
1380 | while (i != r) { | |
1381 | rxb = rxq->queue[i]; | |
1382 | ||
9fbab516 | 1383 | /* If an RXB doesn't have a Rx queue slot associated with it, |
b481de9c ZY |
1384 | * then a bug has been introduced in the queue refilling |
1385 | * routines -- catch it here */ | |
1386 | BUG_ON(rxb == NULL); | |
1387 | ||
1388 | rxq->queue[i] = NULL; | |
1389 | ||
2f301227 ZY |
1390 | pci_unmap_page(priv->pci_dev, rxb->page_dma, |
1391 | PAGE_SIZE << priv->hw_params.rx_page_order, | |
1392 | PCI_DMA_FROMDEVICE); | |
1393 | pkt = rxb_addr(rxb); | |
b481de9c | 1394 | |
be1a71a1 JB |
1395 | trace_iwlwifi_dev_rx(priv, pkt, |
1396 | le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK); | |
1397 | ||
b481de9c ZY |
1398 | /* Reclaim a command buffer only if this packet is a response |
1399 | * to a (driver-originated) command. | |
1400 | * If the packet (e.g. Rx frame) originated from uCode, | |
1401 | * there is no command buffer to reclaim. | |
1402 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
1403 | * but apparently a few don't get set; catch them here. */ | |
1404 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
1405 | (pkt->hdr.cmd != STATISTICS_NOTIFICATION) && | |
1406 | (pkt->hdr.cmd != REPLY_TX); | |
1407 | ||
1408 | /* Based on type of command response or notification, | |
1409 | * handle those that need handling via function in | |
bb8c093b | 1410 | * rx_handlers table. See iwl3945_setup_rx_handlers() */ |
b481de9c | 1411 | if (priv->rx_handlers[pkt->hdr.cmd]) { |
af472a95 | 1412 | IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r, i, |
b481de9c | 1413 | get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); |
86ddbf62 | 1414 | priv->isr_stats.rx_handlers[pkt->hdr.cmd]++; |
29b1b268 | 1415 | priv->rx_handlers[pkt->hdr.cmd] (priv, rxb); |
b481de9c ZY |
1416 | } else { |
1417 | /* No handling needed */ | |
2f301227 ZY |
1418 | IWL_DEBUG_RX(priv, |
1419 | "r %d i %d No handler needed for %s, 0x%02x\n", | |
b481de9c ZY |
1420 | r, i, get_cmd_string(pkt->hdr.cmd), |
1421 | pkt->hdr.cmd); | |
1422 | } | |
1423 | ||
29b1b268 ZY |
1424 | /* |
1425 | * XXX: After here, we should always check rxb->page | |
1426 | * against NULL before touching it or its virtual | |
1427 | * memory (pkt). Because some rx_handler might have | |
1428 | * already taken or freed the pages. | |
1429 | */ | |
1430 | ||
b481de9c | 1431 | if (reclaim) { |
2f301227 ZY |
1432 | /* Invoke any callbacks, transfer the buffer to caller, |
1433 | * and fire off the (possibly) blocking iwl_send_cmd() | |
b481de9c | 1434 | * as we reclaim the driver command queue */ |
29b1b268 | 1435 | if (rxb->page) |
732587ab | 1436 | iwl_tx_cmd_complete(priv, rxb); |
b481de9c | 1437 | else |
39aadf8c | 1438 | IWL_WARN(priv, "Claim null rxb?\n"); |
b481de9c ZY |
1439 | } |
1440 | ||
7300515d ZY |
1441 | /* Reuse the page if possible. For notification packets and |
1442 | * SKBs that fail to Rx correctly, add them back into the | |
1443 | * rx_free list for reuse later. */ | |
1444 | spin_lock_irqsave(&rxq->lock, flags); | |
2f301227 | 1445 | if (rxb->page != NULL) { |
7300515d ZY |
1446 | rxb->page_dma = pci_map_page(priv->pci_dev, rxb->page, |
1447 | 0, PAGE_SIZE << priv->hw_params.rx_page_order, | |
1448 | PCI_DMA_FROMDEVICE); | |
1449 | list_add_tail(&rxb->list, &rxq->rx_free); | |
1450 | rxq->free_count++; | |
1451 | } else | |
1452 | list_add_tail(&rxb->list, &rxq->rx_used); | |
b481de9c | 1453 | |
b481de9c | 1454 | spin_unlock_irqrestore(&rxq->lock, flags); |
7300515d | 1455 | |
b481de9c | 1456 | i = (i + 1) & RX_QUEUE_MASK; |
5c0eef96 MA |
1457 | /* If there are a lot of unused frames, |
1458 | * restock the Rx queue so ucode won't assert. */ | |
1459 | if (fill_rx) { | |
1460 | count++; | |
1461 | if (count >= 8) { | |
7300515d | 1462 | rxq->read = i; |
d14d4440 | 1463 | iwl3945_rx_replenish_now(priv); |
5c0eef96 MA |
1464 | count = 0; |
1465 | } | |
1466 | } | |
b481de9c ZY |
1467 | } |
1468 | ||
1469 | /* Backtrack one entry */ | |
7300515d | 1470 | rxq->read = i; |
d14d4440 AK |
1471 | if (fill_rx) |
1472 | iwl3945_rx_replenish_now(priv); | |
1473 | else | |
1474 | iwl3945_rx_queue_restock(priv); | |
b481de9c ZY |
1475 | } |
1476 | ||
0359facc | 1477 | /* call this function to flush any scheduled tasklet */ |
4a8a4322 | 1478 | static inline void iwl_synchronize_irq(struct iwl_priv *priv) |
0359facc | 1479 | { |
a96a27f9 | 1480 | /* wait to make sure we flush pending tasklet*/ |
0359facc MA |
1481 | synchronize_irq(priv->pci_dev->irq); |
1482 | tasklet_kill(&priv->irq_tasklet); | |
1483 | } | |
1484 | ||
b7a79404 | 1485 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
1486 | static const char *desc_lookup(int i) |
1487 | { | |
1488 | switch (i) { | |
1489 | case 1: | |
1490 | return "FAIL"; | |
1491 | case 2: | |
1492 | return "BAD_PARAM"; | |
1493 | case 3: | |
1494 | return "BAD_CHECKSUM"; | |
1495 | case 4: | |
1496 | return "NMI_INTERRUPT"; | |
1497 | case 5: | |
1498 | return "SYSASSERT"; | |
1499 | case 6: | |
1500 | return "FATAL_ERROR"; | |
1501 | } | |
1502 | ||
1503 | return "UNKNOWN"; | |
1504 | } | |
1505 | ||
1506 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
1507 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
1508 | ||
b7a79404 | 1509 | void iwl3945_dump_nic_error_log(struct iwl_priv *priv) |
b481de9c ZY |
1510 | { |
1511 | u32 i; | |
1512 | u32 desc, time, count, base, data1; | |
1513 | u32 blink1, blink2, ilink1, ilink2; | |
b481de9c ZY |
1514 | |
1515 | base = le32_to_cpu(priv->card_alive.error_event_table_ptr); | |
1516 | ||
bb8c093b | 1517 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
15b1687c | 1518 | IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base); |
b481de9c ZY |
1519 | return; |
1520 | } | |
1521 | ||
b481de9c | 1522 | |
5d49f498 | 1523 | count = iwl_read_targ_mem(priv, base); |
b481de9c ZY |
1524 | |
1525 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
15b1687c WT |
1526 | IWL_ERR(priv, "Start IWL Error Log Dump:\n"); |
1527 | IWL_ERR(priv, "Status: 0x%08lX, count: %d\n", | |
1528 | priv->status, count); | |
b481de9c ZY |
1529 | } |
1530 | ||
15b1687c | 1531 | IWL_ERR(priv, "Desc Time asrtPC blink2 " |
b481de9c ZY |
1532 | "ilink1 nmiPC Line\n"); |
1533 | for (i = ERROR_START_OFFSET; | |
1534 | i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; | |
1535 | i += ERROR_ELEM_SIZE) { | |
5d49f498 | 1536 | desc = iwl_read_targ_mem(priv, base + i); |
b481de9c | 1537 | time = |
5d49f498 | 1538 | iwl_read_targ_mem(priv, base + i + 1 * sizeof(u32)); |
b481de9c | 1539 | blink1 = |
5d49f498 | 1540 | iwl_read_targ_mem(priv, base + i + 2 * sizeof(u32)); |
b481de9c | 1541 | blink2 = |
5d49f498 | 1542 | iwl_read_targ_mem(priv, base + i + 3 * sizeof(u32)); |
b481de9c | 1543 | ilink1 = |
5d49f498 | 1544 | iwl_read_targ_mem(priv, base + i + 4 * sizeof(u32)); |
b481de9c | 1545 | ilink2 = |
5d49f498 | 1546 | iwl_read_targ_mem(priv, base + i + 5 * sizeof(u32)); |
b481de9c | 1547 | data1 = |
5d49f498 | 1548 | iwl_read_targ_mem(priv, base + i + 6 * sizeof(u32)); |
b481de9c | 1549 | |
15b1687c WT |
1550 | IWL_ERR(priv, |
1551 | "%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", | |
1552 | desc_lookup(desc), desc, time, blink1, blink2, | |
1553 | ilink1, ilink2, data1); | |
be1a71a1 JB |
1554 | trace_iwlwifi_dev_ucode_error(priv, desc, time, data1, 0, |
1555 | 0, blink1, blink2, ilink1, ilink2); | |
b481de9c | 1556 | } |
b481de9c ZY |
1557 | } |
1558 | ||
f58177b9 | 1559 | #define EVENT_START_OFFSET (6 * sizeof(u32)) |
b481de9c ZY |
1560 | |
1561 | /** | |
bb8c093b | 1562 | * iwl3945_print_event_log - Dump error event log to syslog |
b481de9c | 1563 | * |
b481de9c | 1564 | */ |
4a8a4322 | 1565 | static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx, |
b481de9c ZY |
1566 | u32 num_events, u32 mode) |
1567 | { | |
1568 | u32 i; | |
1569 | u32 base; /* SRAM byte address of event log header */ | |
1570 | u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */ | |
1571 | u32 ptr; /* SRAM byte address of log data */ | |
1572 | u32 ev, time, data; /* event log data */ | |
1573 | ||
1574 | if (num_events == 0) | |
1575 | return; | |
1576 | ||
1577 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
1578 | ||
1579 | if (mode == 0) | |
1580 | event_size = 2 * sizeof(u32); | |
1581 | else | |
1582 | event_size = 3 * sizeof(u32); | |
1583 | ||
1584 | ptr = base + EVENT_START_OFFSET + (start_idx * event_size); | |
1585 | ||
1586 | /* "time" is actually "data" for mode 0 (no timestamp). | |
1587 | * place event id # at far right for easier visual parsing. */ | |
1588 | for (i = 0; i < num_events; i++) { | |
5d49f498 | 1589 | ev = iwl_read_targ_mem(priv, ptr); |
b481de9c | 1590 | ptr += sizeof(u32); |
5d49f498 | 1591 | time = iwl_read_targ_mem(priv, ptr); |
b481de9c | 1592 | ptr += sizeof(u32); |
15b1687c WT |
1593 | if (mode == 0) { |
1594 | /* data, ev */ | |
1595 | IWL_ERR(priv, "0x%08x\t%04u\n", time, ev); | |
be1a71a1 | 1596 | trace_iwlwifi_dev_ucode_event(priv, 0, time, ev); |
15b1687c | 1597 | } else { |
5d49f498 | 1598 | data = iwl_read_targ_mem(priv, ptr); |
b481de9c | 1599 | ptr += sizeof(u32); |
15b1687c | 1600 | IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", time, data, ev); |
be1a71a1 | 1601 | trace_iwlwifi_dev_ucode_event(priv, time, data, ev); |
b481de9c ZY |
1602 | } |
1603 | } | |
1604 | } | |
1605 | ||
b7a79404 | 1606 | void iwl3945_dump_nic_event_log(struct iwl_priv *priv) |
b481de9c | 1607 | { |
b481de9c ZY |
1608 | u32 base; /* SRAM byte address of event log header */ |
1609 | u32 capacity; /* event log capacity in # entries */ | |
1610 | u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ | |
1611 | u32 num_wraps; /* # times uCode wrapped to top of log */ | |
1612 | u32 next_entry; /* index of next entry to be written by uCode */ | |
1613 | u32 size; /* # entries that we'll print */ | |
1614 | ||
1615 | base = le32_to_cpu(priv->card_alive.log_event_table_ptr); | |
bb8c093b | 1616 | if (!iwl3945_hw_valid_rtc_data_addr(base)) { |
15b1687c | 1617 | IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base); |
b481de9c ZY |
1618 | return; |
1619 | } | |
1620 | ||
b481de9c | 1621 | /* event log header */ |
5d49f498 AK |
1622 | capacity = iwl_read_targ_mem(priv, base); |
1623 | mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); | |
1624 | num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); | |
1625 | next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); | |
b481de9c ZY |
1626 | |
1627 | size = num_wraps ? capacity : next_entry; | |
1628 | ||
1629 | /* bail out if nothing in log */ | |
1630 | if (size == 0) { | |
15b1687c | 1631 | IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n"); |
b481de9c ZY |
1632 | return; |
1633 | } | |
1634 | ||
15b1687c | 1635 | IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n", |
b481de9c ZY |
1636 | size, num_wraps); |
1637 | ||
1638 | /* if uCode has wrapped back to top of log, start at the oldest entry, | |
1639 | * i.e the next one that uCode would fill. */ | |
1640 | if (num_wraps) | |
bb8c093b | 1641 | iwl3945_print_event_log(priv, next_entry, |
b481de9c ZY |
1642 | capacity - next_entry, mode); |
1643 | ||
1644 | /* (then/else) start at top of log */ | |
bb8c093b | 1645 | iwl3945_print_event_log(priv, 0, next_entry, mode); |
b481de9c | 1646 | |
b481de9c | 1647 | } |
b7a79404 RC |
1648 | #else |
1649 | void iwl3945_dump_nic_event_log(struct iwl_priv *priv) | |
1650 | { | |
1651 | } | |
1652 | ||
1653 | void iwl3945_dump_nic_error_log(struct iwl_priv *priv) | |
1654 | { | |
1655 | } | |
1656 | ||
1657 | #endif | |
b481de9c | 1658 | |
4a8a4322 | 1659 | static void iwl3945_irq_tasklet(struct iwl_priv *priv) |
b481de9c ZY |
1660 | { |
1661 | u32 inta, handled = 0; | |
1662 | u32 inta_fh; | |
1663 | unsigned long flags; | |
d08853a3 | 1664 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
1665 | u32 inta_mask; |
1666 | #endif | |
1667 | ||
1668 | spin_lock_irqsave(&priv->lock, flags); | |
1669 | ||
1670 | /* Ack/clear/reset pending uCode interrupts. | |
1671 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
1672 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
5d49f498 AK |
1673 | inta = iwl_read32(priv, CSR_INT); |
1674 | iwl_write32(priv, CSR_INT, inta); | |
b481de9c ZY |
1675 | |
1676 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
1677 | * Any new interrupts that happen after this, either while we're | |
1678 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
5d49f498 AK |
1679 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); |
1680 | iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh); | |
b481de9c | 1681 | |
d08853a3 | 1682 | #ifdef CONFIG_IWLWIFI_DEBUG |
3d816c77 | 1683 | if (iwl_get_debug_level(priv) & IWL_DL_ISR) { |
9fbab516 | 1684 | /* just for debug */ |
5d49f498 | 1685 | inta_mask = iwl_read32(priv, CSR_INT_MASK); |
e1623446 | 1686 | IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", |
b481de9c ZY |
1687 | inta, inta_mask, inta_fh); |
1688 | } | |
1689 | #endif | |
1690 | ||
2f301227 ZY |
1691 | spin_unlock_irqrestore(&priv->lock, flags); |
1692 | ||
b481de9c ZY |
1693 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not |
1694 | * atomic, make sure that inta covers all the interrupts that | |
1695 | * we've discovered, even if FH interrupt came in just after | |
1696 | * reading CSR_INT. */ | |
6f83eaa1 | 1697 | if (inta_fh & CSR39_FH_INT_RX_MASK) |
b481de9c | 1698 | inta |= CSR_INT_BIT_FH_RX; |
6f83eaa1 | 1699 | if (inta_fh & CSR39_FH_INT_TX_MASK) |
b481de9c ZY |
1700 | inta |= CSR_INT_BIT_FH_TX; |
1701 | ||
1702 | /* Now service all interrupt bits discovered above. */ | |
1703 | if (inta & CSR_INT_BIT_HW_ERR) { | |
58dba728 | 1704 | IWL_ERR(priv, "Hardware error detected. Restarting.\n"); |
b481de9c ZY |
1705 | |
1706 | /* Tell the device to stop sending interrupts */ | |
ed3b932e | 1707 | iwl_disable_interrupts(priv); |
b481de9c | 1708 | |
86ddbf62 | 1709 | priv->isr_stats.hw++; |
8ccde88a | 1710 | iwl_irq_handle_error(priv); |
b481de9c ZY |
1711 | |
1712 | handled |= CSR_INT_BIT_HW_ERR; | |
1713 | ||
b481de9c ZY |
1714 | return; |
1715 | } | |
1716 | ||
d08853a3 | 1717 | #ifdef CONFIG_IWLWIFI_DEBUG |
3d816c77 | 1718 | if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { |
b481de9c | 1719 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
86ddbf62 | 1720 | if (inta & CSR_INT_BIT_SCD) { |
e1623446 | 1721 | IWL_DEBUG_ISR(priv, "Scheduler finished to transmit " |
25c03d8e | 1722 | "the frame/frames.\n"); |
86ddbf62 AK |
1723 | priv->isr_stats.sch++; |
1724 | } | |
b481de9c ZY |
1725 | |
1726 | /* Alive notification via Rx interrupt will do the real work */ | |
86ddbf62 | 1727 | if (inta & CSR_INT_BIT_ALIVE) { |
e1623446 | 1728 | IWL_DEBUG_ISR(priv, "Alive interrupt\n"); |
86ddbf62 AK |
1729 | priv->isr_stats.alive++; |
1730 | } | |
b481de9c ZY |
1731 | } |
1732 | #endif | |
1733 | /* Safely ignore these bits for debug checks below */ | |
25c03d8e | 1734 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); |
b481de9c | 1735 | |
b481de9c ZY |
1736 | /* Error detected by uCode */ |
1737 | if (inta & CSR_INT_BIT_SW_ERR) { | |
15b1687c WT |
1738 | IWL_ERR(priv, "Microcode SW error detected. " |
1739 | "Restarting 0x%X.\n", inta); | |
86ddbf62 AK |
1740 | priv->isr_stats.sw++; |
1741 | priv->isr_stats.sw_err = inta; | |
8ccde88a | 1742 | iwl_irq_handle_error(priv); |
b481de9c ZY |
1743 | handled |= CSR_INT_BIT_SW_ERR; |
1744 | } | |
1745 | ||
1746 | /* uCode wakes up after power-down sleep */ | |
1747 | if (inta & CSR_INT_BIT_WAKEUP) { | |
e1623446 | 1748 | IWL_DEBUG_ISR(priv, "Wakeup interrupt\n"); |
141c43a3 | 1749 | iwl_rx_queue_update_write_ptr(priv, &priv->rxq); |
4f3602c8 SO |
1750 | iwl_txq_update_write_ptr(priv, &priv->txq[0]); |
1751 | iwl_txq_update_write_ptr(priv, &priv->txq[1]); | |
1752 | iwl_txq_update_write_ptr(priv, &priv->txq[2]); | |
1753 | iwl_txq_update_write_ptr(priv, &priv->txq[3]); | |
1754 | iwl_txq_update_write_ptr(priv, &priv->txq[4]); | |
1755 | iwl_txq_update_write_ptr(priv, &priv->txq[5]); | |
b481de9c | 1756 | |
86ddbf62 | 1757 | priv->isr_stats.wakeup++; |
b481de9c ZY |
1758 | handled |= CSR_INT_BIT_WAKEUP; |
1759 | } | |
1760 | ||
1761 | /* All uCode command responses, including Tx command responses, | |
1762 | * Rx "responses" (frame-received notification), and other | |
1763 | * notifications from uCode come through here*/ | |
1764 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
bb8c093b | 1765 | iwl3945_rx_handle(priv); |
86ddbf62 | 1766 | priv->isr_stats.rx++; |
b481de9c ZY |
1767 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
1768 | } | |
1769 | ||
1770 | if (inta & CSR_INT_BIT_FH_TX) { | |
e1623446 | 1771 | IWL_DEBUG_ISR(priv, "Tx interrupt\n"); |
86ddbf62 | 1772 | priv->isr_stats.tx++; |
b481de9c | 1773 | |
5d49f498 | 1774 | iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6)); |
a8b50a0a MA |
1775 | iwl_write_direct32(priv, FH39_TCSR_CREDIT |
1776 | (FH39_SRVC_CHNL), 0x0); | |
b481de9c ZY |
1777 | handled |= CSR_INT_BIT_FH_TX; |
1778 | } | |
1779 | ||
86ddbf62 | 1780 | if (inta & ~handled) { |
15b1687c | 1781 | IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled); |
86ddbf62 AK |
1782 | priv->isr_stats.unhandled++; |
1783 | } | |
b481de9c | 1784 | |
40cefda9 | 1785 | if (inta & ~priv->inta_mask) { |
39aadf8c | 1786 | IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n", |
40cefda9 | 1787 | inta & ~priv->inta_mask); |
39aadf8c | 1788 | IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh); |
b481de9c ZY |
1789 | } |
1790 | ||
1791 | /* Re-enable all interrupts */ | |
0359facc MA |
1792 | /* only Re-enable if disabled by irq */ |
1793 | if (test_bit(STATUS_INT_ENABLED, &priv->status)) | |
ed3b932e | 1794 | iwl_enable_interrupts(priv); |
b481de9c | 1795 | |
d08853a3 | 1796 | #ifdef CONFIG_IWLWIFI_DEBUG |
3d816c77 | 1797 | if (iwl_get_debug_level(priv) & (IWL_DL_ISR)) { |
5d49f498 AK |
1798 | inta = iwl_read32(priv, CSR_INT); |
1799 | inta_mask = iwl_read32(priv, CSR_INT_MASK); | |
1800 | inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS); | |
e1623446 | 1801 | IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
b481de9c ZY |
1802 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); |
1803 | } | |
1804 | #endif | |
b481de9c ZY |
1805 | } |
1806 | ||
4a8a4322 | 1807 | static int iwl3945_get_channels_for_scan(struct iwl_priv *priv, |
8318d78a | 1808 | enum ieee80211_band band, |
f9340520 | 1809 | u8 is_active, u8 n_probes, |
bb8c093b | 1810 | struct iwl3945_scan_channel *scan_ch) |
b481de9c | 1811 | { |
4e05c234 | 1812 | struct ieee80211_channel *chan; |
8318d78a | 1813 | const struct ieee80211_supported_band *sband; |
d20b3c65 | 1814 | const struct iwl_channel_info *ch_info; |
b481de9c ZY |
1815 | u16 passive_dwell = 0; |
1816 | u16 active_dwell = 0; | |
1817 | int added, i; | |
1818 | ||
cbba18c6 | 1819 | sband = iwl_get_hw_mode(priv, band); |
8318d78a | 1820 | if (!sband) |
b481de9c ZY |
1821 | return 0; |
1822 | ||
77fecfb8 SO |
1823 | active_dwell = iwl_get_active_dwell_time(priv, band, n_probes); |
1824 | passive_dwell = iwl_get_passive_dwell_time(priv, band); | |
b481de9c | 1825 | |
8f4807a1 AK |
1826 | if (passive_dwell <= active_dwell) |
1827 | passive_dwell = active_dwell + 1; | |
1828 | ||
4e05c234 JB |
1829 | for (i = 0, added = 0; i < priv->scan_request->n_channels; i++) { |
1830 | chan = priv->scan_request->channels[i]; | |
1831 | ||
1832 | if (chan->band != band) | |
182e2e66 JB |
1833 | continue; |
1834 | ||
4e05c234 | 1835 | scan_ch->channel = chan->hw_value; |
b481de9c | 1836 | |
e6148917 | 1837 | ch_info = iwl_get_channel_info(priv, band, scan_ch->channel); |
b481de9c | 1838 | if (!is_channel_valid(ch_info)) { |
e1623446 | 1839 | IWL_DEBUG_SCAN(priv, "Channel %d is INVALID for this band.\n", |
b481de9c ZY |
1840 | scan_ch->channel); |
1841 | continue; | |
1842 | } | |
1843 | ||
011a0330 AK |
1844 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
1845 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); | |
1846 | /* If passive , set up for auto-switch | |
1847 | * and use long active_dwell time. | |
1848 | */ | |
b481de9c | 1849 | if (!is_active || is_channel_passive(ch_info) || |
4e05c234 | 1850 | (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) { |
b481de9c | 1851 | scan_ch->type = 0; /* passive */ |
011a0330 AK |
1852 | if (IWL_UCODE_API(priv->ucode_ver) == 1) |
1853 | scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1); | |
1854 | } else { | |
b481de9c | 1855 | scan_ch->type = 1; /* active */ |
011a0330 | 1856 | } |
b481de9c | 1857 | |
011a0330 AK |
1858 | /* Set direct probe bits. These may be used both for active |
1859 | * scan channels (probes gets sent right away), | |
1860 | * or for passive channels (probes get se sent only after | |
1861 | * hearing clear Rx packet).*/ | |
1862 | if (IWL_UCODE_API(priv->ucode_ver) >= 2) { | |
1863 | if (n_probes) | |
0d21044e | 1864 | scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes); |
011a0330 AK |
1865 | } else { |
1866 | /* uCode v1 does not allow setting direct probe bits on | |
1867 | * passive channel. */ | |
1868 | if ((scan_ch->type & 1) && n_probes) | |
0d21044e | 1869 | scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes); |
011a0330 | 1870 | } |
b481de9c | 1871 | |
9fbab516 | 1872 | /* Set txpower levels to defaults */ |
b481de9c ZY |
1873 | scan_ch->tpc.dsp_atten = 110; |
1874 | /* scan_pwr_info->tpc.dsp_atten; */ | |
1875 | ||
1876 | /*scan_pwr_info->tpc.tx_gain; */ | |
8318d78a | 1877 | if (band == IEEE80211_BAND_5GHZ) |
b481de9c ZY |
1878 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; |
1879 | else { | |
1880 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); | |
1881 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use | |
9fbab516 | 1882 | * power level: |
8a1b0245 | 1883 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; |
b481de9c ZY |
1884 | */ |
1885 | } | |
1886 | ||
e1623446 | 1887 | IWL_DEBUG_SCAN(priv, "Scanning %d [%s %d]\n", |
b481de9c ZY |
1888 | scan_ch->channel, |
1889 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", | |
1890 | (scan_ch->type & 1) ? | |
1891 | active_dwell : passive_dwell); | |
1892 | ||
1893 | scan_ch++; | |
1894 | added++; | |
1895 | } | |
1896 | ||
e1623446 | 1897 | IWL_DEBUG_SCAN(priv, "total channels to scan %d \n", added); |
b481de9c ZY |
1898 | return added; |
1899 | } | |
1900 | ||
4a8a4322 | 1901 | static void iwl3945_init_hw_rates(struct iwl_priv *priv, |
b481de9c ZY |
1902 | struct ieee80211_rate *rates) |
1903 | { | |
1904 | int i; | |
1905 | ||
1906 | for (i = 0; i < IWL_RATE_COUNT; i++) { | |
8318d78a JB |
1907 | rates[i].bitrate = iwl3945_rates[i].ieee * 5; |
1908 | rates[i].hw_value = i; /* Rate scaling will work on indexes */ | |
1909 | rates[i].hw_value_short = i; | |
1910 | rates[i].flags = 0; | |
d9829a67 | 1911 | if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) { |
b481de9c | 1912 | /* |
8318d78a | 1913 | * If CCK != 1M then set short preamble rate flag. |
b481de9c | 1914 | */ |
bb8c093b | 1915 | rates[i].flags |= (iwl3945_rates[i].plcp == 10) ? |
8318d78a | 1916 | 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
b481de9c | 1917 | } |
b481de9c ZY |
1918 | } |
1919 | } | |
1920 | ||
b481de9c ZY |
1921 | /****************************************************************************** |
1922 | * | |
1923 | * uCode download functions | |
1924 | * | |
1925 | ******************************************************************************/ | |
1926 | ||
4a8a4322 | 1927 | static void iwl3945_dealloc_ucode_pci(struct iwl_priv *priv) |
b481de9c | 1928 | { |
98c92211 TW |
1929 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code); |
1930 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data); | |
1931 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup); | |
1932 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init); | |
1933 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data); | |
1934 | iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot); | |
b481de9c ZY |
1935 | } |
1936 | ||
1937 | /** | |
bb8c093b | 1938 | * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host, |
b481de9c ZY |
1939 | * looking at all data. |
1940 | */ | |
4a8a4322 | 1941 | static int iwl3945_verify_inst_full(struct iwl_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
1942 | { |
1943 | u32 val; | |
1944 | u32 save_len = len; | |
1945 | int rc = 0; | |
1946 | u32 errcnt; | |
1947 | ||
e1623446 | 1948 | IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
b481de9c | 1949 | |
5d49f498 | 1950 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
250bdd21 | 1951 | IWL39_RTC_INST_LOWER_BOUND); |
b481de9c ZY |
1952 | |
1953 | errcnt = 0; | |
1954 | for (; len > 0; len -= sizeof(u32), image++) { | |
1955 | /* read data comes through single port, auto-incr addr */ | |
1956 | /* NOTE: Use the debugless read so we don't flood kernel log | |
1957 | * if IWL_DL_IO is set */ | |
5d49f498 | 1958 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c | 1959 | if (val != le32_to_cpu(*image)) { |
15b1687c | 1960 | IWL_ERR(priv, "uCode INST section is invalid at " |
b481de9c ZY |
1961 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
1962 | save_len - len, val, le32_to_cpu(*image)); | |
1963 | rc = -EIO; | |
1964 | errcnt++; | |
1965 | if (errcnt >= 20) | |
1966 | break; | |
1967 | } | |
1968 | } | |
1969 | ||
b481de9c ZY |
1970 | |
1971 | if (!errcnt) | |
e1623446 TW |
1972 | IWL_DEBUG_INFO(priv, |
1973 | "ucode image in INSTRUCTION memory is good\n"); | |
b481de9c ZY |
1974 | |
1975 | return rc; | |
1976 | } | |
1977 | ||
1978 | ||
1979 | /** | |
bb8c093b | 1980 | * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host, |
b481de9c ZY |
1981 | * using sample data 100 bytes apart. If these sample points are good, |
1982 | * it's a pretty good bet that everything between them is good, too. | |
1983 | */ | |
4a8a4322 | 1984 | static int iwl3945_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len) |
b481de9c ZY |
1985 | { |
1986 | u32 val; | |
1987 | int rc = 0; | |
1988 | u32 errcnt = 0; | |
1989 | u32 i; | |
1990 | ||
e1623446 | 1991 | IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len); |
b481de9c | 1992 | |
b481de9c ZY |
1993 | for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) { |
1994 | /* read data comes through single port, auto-incr addr */ | |
1995 | /* NOTE: Use the debugless read so we don't flood kernel log | |
1996 | * if IWL_DL_IO is set */ | |
5d49f498 | 1997 | iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, |
250bdd21 | 1998 | i + IWL39_RTC_INST_LOWER_BOUND); |
5d49f498 | 1999 | val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); |
b481de9c ZY |
2000 | if (val != le32_to_cpu(*image)) { |
2001 | #if 0 /* Enable this if you want to see details */ | |
15b1687c | 2002 | IWL_ERR(priv, "uCode INST section is invalid at " |
b481de9c ZY |
2003 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
2004 | i, val, *image); | |
2005 | #endif | |
2006 | rc = -EIO; | |
2007 | errcnt++; | |
2008 | if (errcnt >= 3) | |
2009 | break; | |
2010 | } | |
2011 | } | |
2012 | ||
b481de9c ZY |
2013 | return rc; |
2014 | } | |
2015 | ||
2016 | ||
2017 | /** | |
bb8c093b | 2018 | * iwl3945_verify_ucode - determine which instruction image is in SRAM, |
b481de9c ZY |
2019 | * and verify its contents |
2020 | */ | |
4a8a4322 | 2021 | static int iwl3945_verify_ucode(struct iwl_priv *priv) |
b481de9c ZY |
2022 | { |
2023 | __le32 *image; | |
2024 | u32 len; | |
2025 | int rc = 0; | |
2026 | ||
2027 | /* Try bootstrap */ | |
2028 | image = (__le32 *)priv->ucode_boot.v_addr; | |
2029 | len = priv->ucode_boot.len; | |
bb8c093b | 2030 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c | 2031 | if (rc == 0) { |
e1623446 | 2032 | IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n"); |
b481de9c ZY |
2033 | return 0; |
2034 | } | |
2035 | ||
2036 | /* Try initialize */ | |
2037 | image = (__le32 *)priv->ucode_init.v_addr; | |
2038 | len = priv->ucode_init.len; | |
bb8c093b | 2039 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c | 2040 | if (rc == 0) { |
e1623446 | 2041 | IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n"); |
b481de9c ZY |
2042 | return 0; |
2043 | } | |
2044 | ||
2045 | /* Try runtime/protocol */ | |
2046 | image = (__le32 *)priv->ucode_code.v_addr; | |
2047 | len = priv->ucode_code.len; | |
bb8c093b | 2048 | rc = iwl3945_verify_inst_sparse(priv, image, len); |
b481de9c | 2049 | if (rc == 0) { |
e1623446 | 2050 | IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n"); |
b481de9c ZY |
2051 | return 0; |
2052 | } | |
2053 | ||
15b1687c | 2054 | IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); |
b481de9c | 2055 | |
9fbab516 BC |
2056 | /* Since nothing seems to match, show first several data entries in |
2057 | * instruction SRAM, so maybe visual inspection will give a clue. | |
2058 | * Selection of bootstrap image (vs. other images) is arbitrary. */ | |
b481de9c ZY |
2059 | image = (__le32 *)priv->ucode_boot.v_addr; |
2060 | len = priv->ucode_boot.len; | |
bb8c093b | 2061 | rc = iwl3945_verify_inst_full(priv, image, len); |
b481de9c ZY |
2062 | |
2063 | return rc; | |
2064 | } | |
2065 | ||
4a8a4322 | 2066 | static void iwl3945_nic_start(struct iwl_priv *priv) |
b481de9c ZY |
2067 | { |
2068 | /* Remove all resets to allow NIC to operate */ | |
5d49f498 | 2069 | iwl_write32(priv, CSR_RESET, 0); |
b481de9c ZY |
2070 | } |
2071 | ||
2072 | /** | |
bb8c093b | 2073 | * iwl3945_read_ucode - Read uCode images from disk file. |
b481de9c ZY |
2074 | * |
2075 | * Copy into buffers for card to fetch via bus-mastering | |
2076 | */ | |
4a8a4322 | 2077 | static int iwl3945_read_ucode(struct iwl_priv *priv) |
b481de9c | 2078 | { |
cc0f555d | 2079 | const struct iwl_ucode_header *ucode; |
a0987a8d | 2080 | int ret = -EINVAL, index; |
b481de9c ZY |
2081 | const struct firmware *ucode_raw; |
2082 | /* firmware file name contains uCode/driver compatibility version */ | |
a0987a8d RC |
2083 | const char *name_pre = priv->cfg->fw_name_pre; |
2084 | const unsigned int api_max = priv->cfg->ucode_api_max; | |
2085 | const unsigned int api_min = priv->cfg->ucode_api_min; | |
2086 | char buf[25]; | |
b481de9c ZY |
2087 | u8 *src; |
2088 | size_t len; | |
a0987a8d | 2089 | u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size; |
b481de9c ZY |
2090 | |
2091 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
2092 | * request_firmware() is synchronous, file is in memory on return. */ | |
a0987a8d RC |
2093 | for (index = api_max; index >= api_min; index--) { |
2094 | sprintf(buf, "%s%u%s", name_pre, index, ".ucode"); | |
2095 | ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev); | |
2096 | if (ret < 0) { | |
15b1687c | 2097 | IWL_ERR(priv, "%s firmware file req failed: %d\n", |
a0987a8d RC |
2098 | buf, ret); |
2099 | if (ret == -ENOENT) | |
2100 | continue; | |
2101 | else | |
2102 | goto error; | |
2103 | } else { | |
2104 | if (index < api_max) | |
15b1687c WT |
2105 | IWL_ERR(priv, "Loaded firmware %s, " |
2106 | "which is deprecated. " | |
2107 | " Please use API v%u instead.\n", | |
a0987a8d | 2108 | buf, api_max); |
e1623446 TW |
2109 | IWL_DEBUG_INFO(priv, "Got firmware '%s' file " |
2110 | "(%zd bytes) from disk\n", | |
a0987a8d RC |
2111 | buf, ucode_raw->size); |
2112 | break; | |
2113 | } | |
b481de9c ZY |
2114 | } |
2115 | ||
a0987a8d RC |
2116 | if (ret < 0) |
2117 | goto error; | |
b481de9c ZY |
2118 | |
2119 | /* Make sure that we got at least our header! */ | |
cc0f555d | 2120 | if (ucode_raw->size < priv->cfg->ops->ucode->get_header_size(1)) { |
15b1687c | 2121 | IWL_ERR(priv, "File size way too small!\n"); |
90e759d1 | 2122 | ret = -EINVAL; |
b481de9c ZY |
2123 | goto err_release; |
2124 | } | |
2125 | ||
2126 | /* Data from ucode file: header followed by uCode images */ | |
cc0f555d | 2127 | ucode = (struct iwl_ucode_header *)ucode_raw->data; |
b481de9c | 2128 | |
c02b3acd | 2129 | priv->ucode_ver = le32_to_cpu(ucode->ver); |
a0987a8d | 2130 | api_ver = IWL_UCODE_API(priv->ucode_ver); |
cc0f555d JS |
2131 | inst_size = priv->cfg->ops->ucode->get_inst_size(ucode, api_ver); |
2132 | data_size = priv->cfg->ops->ucode->get_data_size(ucode, api_ver); | |
2133 | init_size = priv->cfg->ops->ucode->get_init_size(ucode, api_ver); | |
2134 | init_data_size = | |
2135 | priv->cfg->ops->ucode->get_init_data_size(ucode, api_ver); | |
2136 | boot_size = priv->cfg->ops->ucode->get_boot_size(ucode, api_ver); | |
2137 | src = priv->cfg->ops->ucode->get_data(ucode, api_ver); | |
b481de9c | 2138 | |
a0987a8d RC |
2139 | /* api_ver should match the api version forming part of the |
2140 | * firmware filename ... but we don't check for that and only rely | |
877d0310 | 2141 | * on the API version read from firmware header from here on forward */ |
a0987a8d RC |
2142 | |
2143 | if (api_ver < api_min || api_ver > api_max) { | |
15b1687c | 2144 | IWL_ERR(priv, "Driver unable to support your firmware API. " |
a0987a8d RC |
2145 | "Driver supports v%u, firmware is v%u.\n", |
2146 | api_max, api_ver); | |
2147 | priv->ucode_ver = 0; | |
2148 | ret = -EINVAL; | |
2149 | goto err_release; | |
2150 | } | |
2151 | if (api_ver != api_max) | |
15b1687c | 2152 | IWL_ERR(priv, "Firmware has old API version. Expected %u, " |
a0987a8d RC |
2153 | "got %u. New firmware can be obtained " |
2154 | "from http://www.intellinuxwireless.org.\n", | |
2155 | api_max, api_ver); | |
2156 | ||
978785a3 TW |
2157 | IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n", |
2158 | IWL_UCODE_MAJOR(priv->ucode_ver), | |
2159 | IWL_UCODE_MINOR(priv->ucode_ver), | |
2160 | IWL_UCODE_API(priv->ucode_ver), | |
2161 | IWL_UCODE_SERIAL(priv->ucode_ver)); | |
2162 | ||
e1623446 | 2163 | IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", |
a0987a8d | 2164 | priv->ucode_ver); |
e1623446 TW |
2165 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n", |
2166 | inst_size); | |
2167 | IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %u\n", | |
2168 | data_size); | |
2169 | IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %u\n", | |
2170 | init_size); | |
2171 | IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %u\n", | |
2172 | init_data_size); | |
2173 | IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n", | |
2174 | boot_size); | |
b481de9c | 2175 | |
a0987a8d | 2176 | |
b481de9c | 2177 | /* Verify size of file vs. image size info in file's header */ |
cc0f555d | 2178 | if (ucode_raw->size != priv->cfg->ops->ucode->get_header_size(api_ver) + |
b481de9c ZY |
2179 | inst_size + data_size + init_size + |
2180 | init_data_size + boot_size) { | |
2181 | ||
cc0f555d JS |
2182 | IWL_DEBUG_INFO(priv, |
2183 | "uCode file size %zd does not match expected size\n", | |
2184 | ucode_raw->size); | |
90e759d1 | 2185 | ret = -EINVAL; |
b481de9c ZY |
2186 | goto err_release; |
2187 | } | |
2188 | ||
2189 | /* Verify that uCode images will fit in card's SRAM */ | |
250bdd21 | 2190 | if (inst_size > IWL39_MAX_INST_SIZE) { |
e1623446 | 2191 | IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n", |
90e759d1 TW |
2192 | inst_size); |
2193 | ret = -EINVAL; | |
b481de9c ZY |
2194 | goto err_release; |
2195 | } | |
2196 | ||
250bdd21 | 2197 | if (data_size > IWL39_MAX_DATA_SIZE) { |
e1623446 | 2198 | IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n", |
90e759d1 TW |
2199 | data_size); |
2200 | ret = -EINVAL; | |
b481de9c ZY |
2201 | goto err_release; |
2202 | } | |
250bdd21 | 2203 | if (init_size > IWL39_MAX_INST_SIZE) { |
e1623446 TW |
2204 | IWL_DEBUG_INFO(priv, |
2205 | "uCode init instr len %d too large to fit in\n", | |
90e759d1 TW |
2206 | init_size); |
2207 | ret = -EINVAL; | |
b481de9c ZY |
2208 | goto err_release; |
2209 | } | |
250bdd21 | 2210 | if (init_data_size > IWL39_MAX_DATA_SIZE) { |
e1623446 TW |
2211 | IWL_DEBUG_INFO(priv, |
2212 | "uCode init data len %d too large to fit in\n", | |
90e759d1 TW |
2213 | init_data_size); |
2214 | ret = -EINVAL; | |
b481de9c ZY |
2215 | goto err_release; |
2216 | } | |
250bdd21 | 2217 | if (boot_size > IWL39_MAX_BSM_SIZE) { |
e1623446 TW |
2218 | IWL_DEBUG_INFO(priv, |
2219 | "uCode boot instr len %d too large to fit in\n", | |
90e759d1 TW |
2220 | boot_size); |
2221 | ret = -EINVAL; | |
b481de9c ZY |
2222 | goto err_release; |
2223 | } | |
2224 | ||
2225 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
2226 | ||
2227 | /* Runtime instructions and 2 copies of data: | |
2228 | * 1) unmodified from disk | |
2229 | * 2) backup cache for save/restore during power-downs */ | |
2230 | priv->ucode_code.len = inst_size; | |
98c92211 | 2231 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code); |
b481de9c ZY |
2232 | |
2233 | priv->ucode_data.len = data_size; | |
98c92211 | 2234 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data); |
b481de9c ZY |
2235 | |
2236 | priv->ucode_data_backup.len = data_size; | |
98c92211 | 2237 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup); |
b481de9c | 2238 | |
90e759d1 TW |
2239 | if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr || |
2240 | !priv->ucode_data_backup.v_addr) | |
2241 | goto err_pci_alloc; | |
b481de9c ZY |
2242 | |
2243 | /* Initialization instructions and data */ | |
90e759d1 TW |
2244 | if (init_size && init_data_size) { |
2245 | priv->ucode_init.len = init_size; | |
98c92211 | 2246 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init); |
90e759d1 TW |
2247 | |
2248 | priv->ucode_init_data.len = init_data_size; | |
98c92211 | 2249 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data); |
90e759d1 TW |
2250 | |
2251 | if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr) | |
2252 | goto err_pci_alloc; | |
2253 | } | |
b481de9c ZY |
2254 | |
2255 | /* Bootstrap (instructions only, no data) */ | |
90e759d1 TW |
2256 | if (boot_size) { |
2257 | priv->ucode_boot.len = boot_size; | |
98c92211 | 2258 | iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot); |
b481de9c | 2259 | |
90e759d1 TW |
2260 | if (!priv->ucode_boot.v_addr) |
2261 | goto err_pci_alloc; | |
2262 | } | |
b481de9c ZY |
2263 | |
2264 | /* Copy images into buffers for card's bus-master reads ... */ | |
2265 | ||
2266 | /* Runtime instructions (first block of data in file) */ | |
cc0f555d | 2267 | len = inst_size; |
e1623446 TW |
2268 | IWL_DEBUG_INFO(priv, |
2269 | "Copying (but not loading) uCode instr len %zd\n", len); | |
b481de9c | 2270 | memcpy(priv->ucode_code.v_addr, src, len); |
cc0f555d JS |
2271 | src += len; |
2272 | ||
e1623446 | 2273 | IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", |
b481de9c ZY |
2274 | priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr); |
2275 | ||
2276 | /* Runtime data (2nd block) | |
bb8c093b | 2277 | * NOTE: Copy into backup buffer will be done in iwl3945_up() */ |
cc0f555d | 2278 | len = data_size; |
e1623446 TW |
2279 | IWL_DEBUG_INFO(priv, |
2280 | "Copying (but not loading) uCode data len %zd\n", len); | |
b481de9c ZY |
2281 | memcpy(priv->ucode_data.v_addr, src, len); |
2282 | memcpy(priv->ucode_data_backup.v_addr, src, len); | |
cc0f555d | 2283 | src += len; |
b481de9c ZY |
2284 | |
2285 | /* Initialization instructions (3rd block) */ | |
2286 | if (init_size) { | |
cc0f555d | 2287 | len = init_size; |
e1623446 TW |
2288 | IWL_DEBUG_INFO(priv, |
2289 | "Copying (but not loading) init instr len %zd\n", len); | |
b481de9c | 2290 | memcpy(priv->ucode_init.v_addr, src, len); |
cc0f555d | 2291 | src += len; |
b481de9c ZY |
2292 | } |
2293 | ||
2294 | /* Initialization data (4th block) */ | |
2295 | if (init_data_size) { | |
cc0f555d | 2296 | len = init_data_size; |
e1623446 TW |
2297 | IWL_DEBUG_INFO(priv, |
2298 | "Copying (but not loading) init data len %zd\n", len); | |
b481de9c | 2299 | memcpy(priv->ucode_init_data.v_addr, src, len); |
cc0f555d | 2300 | src += len; |
b481de9c ZY |
2301 | } |
2302 | ||
2303 | /* Bootstrap instructions (5th block) */ | |
cc0f555d | 2304 | len = boot_size; |
e1623446 TW |
2305 | IWL_DEBUG_INFO(priv, |
2306 | "Copying (but not loading) boot instr len %zd\n", len); | |
b481de9c ZY |
2307 | memcpy(priv->ucode_boot.v_addr, src, len); |
2308 | ||
2309 | /* We have our copies now, allow OS release its copies */ | |
2310 | release_firmware(ucode_raw); | |
2311 | return 0; | |
2312 | ||
2313 | err_pci_alloc: | |
15b1687c | 2314 | IWL_ERR(priv, "failed to allocate pci memory\n"); |
90e759d1 | 2315 | ret = -ENOMEM; |
bb8c093b | 2316 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
2317 | |
2318 | err_release: | |
2319 | release_firmware(ucode_raw); | |
2320 | ||
2321 | error: | |
90e759d1 | 2322 | return ret; |
b481de9c ZY |
2323 | } |
2324 | ||
2325 | ||
2326 | /** | |
bb8c093b | 2327 | * iwl3945_set_ucode_ptrs - Set uCode address location |
b481de9c ZY |
2328 | * |
2329 | * Tell initialization uCode where to find runtime uCode. | |
2330 | * | |
2331 | * BSM registers initially contain pointers to initialization uCode. | |
2332 | * We need to replace them to load runtime uCode inst and data, | |
2333 | * and to save runtime data when powering down. | |
2334 | */ | |
4a8a4322 | 2335 | static int iwl3945_set_ucode_ptrs(struct iwl_priv *priv) |
b481de9c ZY |
2336 | { |
2337 | dma_addr_t pinst; | |
2338 | dma_addr_t pdata; | |
b481de9c ZY |
2339 | |
2340 | /* bits 31:0 for 3945 */ | |
2341 | pinst = priv->ucode_code.p_addr; | |
2342 | pdata = priv->ucode_data_backup.p_addr; | |
2343 | ||
b481de9c | 2344 | /* Tell bootstrap uCode where to find image to load */ |
5d49f498 AK |
2345 | iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst); |
2346 | iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata); | |
2347 | iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, | |
b481de9c ZY |
2348 | priv->ucode_data.len); |
2349 | ||
a96a27f9 | 2350 | /* Inst byte count must be last to set up, bit 31 signals uCode |
b481de9c | 2351 | * that all new ptr/size info is in place */ |
5d49f498 | 2352 | iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, |
b481de9c ZY |
2353 | priv->ucode_code.len | BSM_DRAM_INST_LOAD); |
2354 | ||
e1623446 | 2355 | IWL_DEBUG_INFO(priv, "Runtime uCode pointers are set.\n"); |
b481de9c | 2356 | |
a8b50a0a | 2357 | return 0; |
b481de9c ZY |
2358 | } |
2359 | ||
2360 | /** | |
bb8c093b | 2361 | * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received |
b481de9c ZY |
2362 | * |
2363 | * Called after REPLY_ALIVE notification received from "initialize" uCode. | |
2364 | * | |
b481de9c | 2365 | * Tell "initialize" uCode to go ahead and load the runtime uCode. |
9fbab516 | 2366 | */ |
4a8a4322 | 2367 | static void iwl3945_init_alive_start(struct iwl_priv *priv) |
b481de9c ZY |
2368 | { |
2369 | /* Check alive response for "valid" sign from uCode */ | |
2370 | if (priv->card_alive_init.is_valid != UCODE_VALID_OK) { | |
2371 | /* We had an error bringing up the hardware, so take it | |
2372 | * all the way back down so we can try again */ | |
e1623446 | 2373 | IWL_DEBUG_INFO(priv, "Initialize Alive failed.\n"); |
b481de9c ZY |
2374 | goto restart; |
2375 | } | |
2376 | ||
2377 | /* Bootstrap uCode has loaded initialize uCode ... verify inst image. | |
2378 | * This is a paranoid check, because we would not have gotten the | |
2379 | * "initialize" alive if code weren't properly loaded. */ | |
bb8c093b | 2380 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
2381 | /* Runtime instruction load was bad; |
2382 | * take it all the way back down so we can try again */ | |
e1623446 | 2383 | IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n"); |
b481de9c ZY |
2384 | goto restart; |
2385 | } | |
2386 | ||
2387 | /* Send pointers to protocol/runtime uCode image ... init code will | |
2388 | * load and launch runtime uCode, which will send us another "Alive" | |
2389 | * notification. */ | |
e1623446 | 2390 | IWL_DEBUG_INFO(priv, "Initialization Alive received.\n"); |
bb8c093b | 2391 | if (iwl3945_set_ucode_ptrs(priv)) { |
b481de9c ZY |
2392 | /* Runtime instruction load won't happen; |
2393 | * take it all the way back down so we can try again */ | |
e1623446 | 2394 | IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n"); |
b481de9c ZY |
2395 | goto restart; |
2396 | } | |
2397 | return; | |
2398 | ||
2399 | restart: | |
2400 | queue_work(priv->workqueue, &priv->restart); | |
2401 | } | |
2402 | ||
b481de9c | 2403 | /** |
bb8c093b | 2404 | * iwl3945_alive_start - called after REPLY_ALIVE notification received |
b481de9c | 2405 | * from protocol/runtime uCode (initialization uCode's |
bb8c093b | 2406 | * Alive gets handled by iwl3945_init_alive_start()). |
b481de9c | 2407 | */ |
4a8a4322 | 2408 | static void iwl3945_alive_start(struct iwl_priv *priv) |
b481de9c | 2409 | { |
b481de9c ZY |
2410 | int thermal_spin = 0; |
2411 | u32 rfkill; | |
2412 | ||
e1623446 | 2413 | IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
b481de9c ZY |
2414 | |
2415 | if (priv->card_alive.is_valid != UCODE_VALID_OK) { | |
2416 | /* We had an error bringing up the hardware, so take it | |
2417 | * all the way back down so we can try again */ | |
e1623446 | 2418 | IWL_DEBUG_INFO(priv, "Alive failed.\n"); |
b481de9c ZY |
2419 | goto restart; |
2420 | } | |
2421 | ||
2422 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
2423 | * This is a paranoid check, because we would not have gotten the | |
2424 | * "runtime" alive if code weren't properly loaded. */ | |
bb8c093b | 2425 | if (iwl3945_verify_ucode(priv)) { |
b481de9c ZY |
2426 | /* Runtime instruction load was bad; |
2427 | * take it all the way back down so we can try again */ | |
e1623446 | 2428 | IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n"); |
b481de9c ZY |
2429 | goto restart; |
2430 | } | |
2431 | ||
c587de0b | 2432 | iwl_clear_stations_table(priv); |
b481de9c | 2433 | |
5d49f498 | 2434 | rfkill = iwl_read_prph(priv, APMG_RFKILL_REG); |
e1623446 | 2435 | IWL_DEBUG_INFO(priv, "RFKILL status: 0x%x\n", rfkill); |
b481de9c ZY |
2436 | |
2437 | if (rfkill & 0x1) { | |
2438 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
a96a27f9 | 2439 | /* if RFKILL is not on, then wait for thermal |
b481de9c | 2440 | * sensor in adapter to kick in */ |
bb8c093b | 2441 | while (iwl3945_hw_get_temperature(priv) == 0) { |
b481de9c ZY |
2442 | thermal_spin++; |
2443 | udelay(10); | |
2444 | } | |
2445 | ||
2446 | if (thermal_spin) | |
e1623446 | 2447 | IWL_DEBUG_INFO(priv, "Thermal calibration took %dus\n", |
b481de9c ZY |
2448 | thermal_spin * 10); |
2449 | } else | |
2450 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
2451 | ||
9fbab516 | 2452 | /* After the ALIVE response, we can send commands to 3945 uCode */ |
b481de9c ZY |
2453 | set_bit(STATUS_ALIVE, &priv->status); |
2454 | ||
775a6e27 | 2455 | if (iwl_is_rfkill(priv)) |
b481de9c ZY |
2456 | return; |
2457 | ||
36d6825b | 2458 | ieee80211_wake_queues(priv->hw); |
b481de9c ZY |
2459 | |
2460 | priv->active_rate = priv->rates_mask; | |
2461 | priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK; | |
2462 | ||
d25aabb0 | 2463 | iwl_power_update_mode(priv, false); |
b481de9c | 2464 | |
8ccde88a | 2465 | if (iwl_is_associated(priv)) { |
bb8c093b | 2466 | struct iwl3945_rxon_cmd *active_rxon = |
8ccde88a | 2467 | (struct iwl3945_rxon_cmd *)(&priv->active_rxon); |
b481de9c | 2468 | |
8a9b9926 | 2469 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
b481de9c ZY |
2470 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
2471 | } else { | |
2472 | /* Initialize our rx_config data */ | |
8ccde88a | 2473 | iwl_connection_init_rx_config(priv, priv->iw_mode); |
b481de9c ZY |
2474 | } |
2475 | ||
9fbab516 | 2476 | /* Configure Bluetooth device coexistence support */ |
17f841cd | 2477 | iwl_send_bt_config(priv); |
b481de9c ZY |
2478 | |
2479 | /* Configure the adapter for unassociated operation */ | |
e0158e61 | 2480 | iwlcore_commit_rxon(priv); |
b481de9c | 2481 | |
b481de9c ZY |
2482 | iwl3945_reg_txpower_periodic(priv); |
2483 | ||
e932a609 | 2484 | iwl_leds_init(priv); |
fe00b5a5 | 2485 | |
e1623446 | 2486 | IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); |
a9f46786 | 2487 | set_bit(STATUS_READY, &priv->status); |
5a66926a | 2488 | wake_up_interruptible(&priv->wait_command_queue); |
b481de9c | 2489 | |
9bdf5eca MA |
2490 | /* reassociate for ADHOC mode */ |
2491 | if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) { | |
2492 | struct sk_buff *beacon = ieee80211_beacon_get(priv->hw, | |
2493 | priv->vif); | |
2494 | if (beacon) | |
9944b938 | 2495 | iwl_mac_beacon_update(priv->hw, beacon); |
9bdf5eca MA |
2496 | } |
2497 | ||
f45c2714 | 2498 | if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status)) |
727882d6 | 2499 | iwl_set_mode(priv, priv->iw_mode); |
f45c2714 | 2500 | |
b481de9c ZY |
2501 | return; |
2502 | ||
2503 | restart: | |
2504 | queue_work(priv->workqueue, &priv->restart); | |
2505 | } | |
2506 | ||
4a8a4322 | 2507 | static void iwl3945_cancel_deferred_work(struct iwl_priv *priv); |
b481de9c | 2508 | |
4a8a4322 | 2509 | static void __iwl3945_down(struct iwl_priv *priv) |
b481de9c ZY |
2510 | { |
2511 | unsigned long flags; | |
2512 | int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status); | |
2513 | struct ieee80211_conf *conf = NULL; | |
2514 | ||
e1623446 | 2515 | IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); |
b481de9c ZY |
2516 | |
2517 | conf = ieee80211_get_hw_conf(priv->hw); | |
2518 | ||
2519 | if (!exit_pending) | |
2520 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
2521 | ||
c587de0b | 2522 | iwl_clear_stations_table(priv); |
b481de9c ZY |
2523 | |
2524 | /* Unblock any waiting calls */ | |
2525 | wake_up_interruptible_all(&priv->wait_command_queue); | |
2526 | ||
b481de9c ZY |
2527 | /* Wipe out the EXIT_PENDING status bit if we are not actually |
2528 | * exiting the module */ | |
2529 | if (!exit_pending) | |
2530 | clear_bit(STATUS_EXIT_PENDING, &priv->status); | |
2531 | ||
2532 | /* stop and reset the on-board processor */ | |
5d49f498 | 2533 | iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
b481de9c ZY |
2534 | |
2535 | /* tell the device to stop sending interrupts */ | |
0359facc | 2536 | spin_lock_irqsave(&priv->lock, flags); |
ed3b932e | 2537 | iwl_disable_interrupts(priv); |
0359facc MA |
2538 | spin_unlock_irqrestore(&priv->lock, flags); |
2539 | iwl_synchronize_irq(priv); | |
b481de9c ZY |
2540 | |
2541 | if (priv->mac80211_registered) | |
2542 | ieee80211_stop_queues(priv->hw); | |
2543 | ||
bb8c093b | 2544 | /* If we have not previously called iwl3945_init() then |
6da3a13e | 2545 | * clear all bits but the RF Kill bits and return */ |
775a6e27 | 2546 | if (!iwl_is_init(priv)) { |
b481de9c ZY |
2547 | priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) << |
2548 | STATUS_RF_KILL_HW | | |
9788864e RC |
2549 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
2550 | STATUS_GEO_CONFIGURED | | |
ebef2008 AK |
2551 | test_bit(STATUS_EXIT_PENDING, &priv->status) << |
2552 | STATUS_EXIT_PENDING; | |
b481de9c ZY |
2553 | goto exit; |
2554 | } | |
2555 | ||
6da3a13e | 2556 | /* ...otherwise clear out all the status bits but the RF Kill |
a60e77e5 | 2557 | * bit and continue taking the NIC down. */ |
b481de9c ZY |
2558 | priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) << |
2559 | STATUS_RF_KILL_HW | | |
9788864e RC |
2560 | test_bit(STATUS_GEO_CONFIGURED, &priv->status) << |
2561 | STATUS_GEO_CONFIGURED | | |
b481de9c | 2562 | test_bit(STATUS_FW_ERROR, &priv->status) << |
ebef2008 AK |
2563 | STATUS_FW_ERROR | |
2564 | test_bit(STATUS_EXIT_PENDING, &priv->status) << | |
2565 | STATUS_EXIT_PENDING; | |
b481de9c | 2566 | |
bb8c093b CH |
2567 | iwl3945_hw_txq_ctx_stop(priv); |
2568 | iwl3945_hw_rxq_stop(priv); | |
b481de9c | 2569 | |
a8b50a0a MA |
2570 | iwl_write_prph(priv, APMG_CLK_DIS_REG, |
2571 | APMG_CLK_VAL_DMA_CLK_RQT); | |
b481de9c ZY |
2572 | |
2573 | udelay(5); | |
2574 | ||
4d2ccdb9 BC |
2575 | /* Stop the device, and put it in low power state */ |
2576 | priv->cfg->ops->lib->apm_ops.stop(priv); | |
e9414b6b | 2577 | |
b481de9c | 2578 | exit: |
3d24a9f7 | 2579 | memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp)); |
b481de9c ZY |
2580 | |
2581 | if (priv->ibss_beacon) | |
2582 | dev_kfree_skb(priv->ibss_beacon); | |
2583 | priv->ibss_beacon = NULL; | |
2584 | ||
2585 | /* clear out any free frames */ | |
bb8c093b | 2586 | iwl3945_clear_free_frames(priv); |
b481de9c ZY |
2587 | } |
2588 | ||
4a8a4322 | 2589 | static void iwl3945_down(struct iwl_priv *priv) |
b481de9c ZY |
2590 | { |
2591 | mutex_lock(&priv->mutex); | |
bb8c093b | 2592 | __iwl3945_down(priv); |
b481de9c | 2593 | mutex_unlock(&priv->mutex); |
b24d22b1 | 2594 | |
bb8c093b | 2595 | iwl3945_cancel_deferred_work(priv); |
b481de9c ZY |
2596 | } |
2597 | ||
2598 | #define MAX_HW_RESTARTS 5 | |
2599 | ||
4a8a4322 | 2600 | static int __iwl3945_up(struct iwl_priv *priv) |
b481de9c ZY |
2601 | { |
2602 | int rc, i; | |
2603 | ||
2604 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
39aadf8c | 2605 | IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
b481de9c ZY |
2606 | return -EIO; |
2607 | } | |
2608 | ||
e903fbd4 | 2609 | if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) { |
15b1687c | 2610 | IWL_ERR(priv, "ucode not available for device bring up\n"); |
e903fbd4 RC |
2611 | return -EIO; |
2612 | } | |
2613 | ||
e655b9f0 | 2614 | /* If platform's RF_KILL switch is NOT set to KILL */ |
5d49f498 | 2615 | if (iwl_read32(priv, CSR_GP_CNTRL) & |
e655b9f0 ZY |
2616 | CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
2617 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
2618 | else { | |
2619 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
6da3a13e WYG |
2620 | IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n"); |
2621 | return -ENODEV; | |
b481de9c | 2622 | } |
80fcc9e2 | 2623 | |
5d49f498 | 2624 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
b481de9c | 2625 | |
bb8c093b | 2626 | rc = iwl3945_hw_nic_init(priv); |
b481de9c | 2627 | if (rc) { |
15b1687c | 2628 | IWL_ERR(priv, "Unable to int nic\n"); |
b481de9c ZY |
2629 | return rc; |
2630 | } | |
2631 | ||
2632 | /* make sure rfkill handshake bits are cleared */ | |
5d49f498 AK |
2633 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
2634 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, | |
b481de9c ZY |
2635 | CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
2636 | ||
2637 | /* clear (again), then enable host interrupts */ | |
5d49f498 | 2638 | iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
ed3b932e | 2639 | iwl_enable_interrupts(priv); |
b481de9c ZY |
2640 | |
2641 | /* really make sure rfkill handshake bits are cleared */ | |
5d49f498 AK |
2642 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
2643 | iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
b481de9c ZY |
2644 | |
2645 | /* Copy original ucode data image from disk into backup cache. | |
2646 | * This will be used to initialize the on-board processor's | |
2647 | * data SRAM for a clean start when the runtime program first loads. */ | |
2648 | memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr, | |
5a66926a | 2649 | priv->ucode_data.len); |
b481de9c | 2650 | |
e655b9f0 ZY |
2651 | /* We return success when we resume from suspend and rf_kill is on. */ |
2652 | if (test_bit(STATUS_RF_KILL_HW, &priv->status)) | |
2653 | return 0; | |
2654 | ||
b481de9c ZY |
2655 | for (i = 0; i < MAX_HW_RESTARTS; i++) { |
2656 | ||
c587de0b | 2657 | iwl_clear_stations_table(priv); |
b481de9c ZY |
2658 | |
2659 | /* load bootstrap state machine, | |
2660 | * load bootstrap program into processor's memory, | |
2661 | * prepare to load the "initialize" uCode */ | |
0164b9b4 | 2662 | priv->cfg->ops->lib->load_ucode(priv); |
b481de9c ZY |
2663 | |
2664 | if (rc) { | |
15b1687c WT |
2665 | IWL_ERR(priv, |
2666 | "Unable to set up bootstrap uCode: %d\n", rc); | |
b481de9c ZY |
2667 | continue; |
2668 | } | |
2669 | ||
2670 | /* start card; "initialize" will load runtime ucode */ | |
bb8c093b | 2671 | iwl3945_nic_start(priv); |
b481de9c | 2672 | |
e1623446 | 2673 | IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n"); |
b481de9c ZY |
2674 | |
2675 | return 0; | |
2676 | } | |
2677 | ||
2678 | set_bit(STATUS_EXIT_PENDING, &priv->status); | |
bb8c093b | 2679 | __iwl3945_down(priv); |
ebef2008 | 2680 | clear_bit(STATUS_EXIT_PENDING, &priv->status); |
b481de9c ZY |
2681 | |
2682 | /* tried to restart and config the device for as long as our | |
2683 | * patience could withstand */ | |
15b1687c | 2684 | IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i); |
b481de9c ZY |
2685 | return -EIO; |
2686 | } | |
2687 | ||
2688 | ||
2689 | /***************************************************************************** | |
2690 | * | |
2691 | * Workqueue callbacks | |
2692 | * | |
2693 | *****************************************************************************/ | |
2694 | ||
bb8c093b | 2695 | static void iwl3945_bg_init_alive_start(struct work_struct *data) |
b481de9c | 2696 | { |
4a8a4322 AK |
2697 | struct iwl_priv *priv = |
2698 | container_of(data, struct iwl_priv, init_alive_start.work); | |
b481de9c ZY |
2699 | |
2700 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2701 | return; | |
2702 | ||
2703 | mutex_lock(&priv->mutex); | |
bb8c093b | 2704 | iwl3945_init_alive_start(priv); |
b481de9c ZY |
2705 | mutex_unlock(&priv->mutex); |
2706 | } | |
2707 | ||
bb8c093b | 2708 | static void iwl3945_bg_alive_start(struct work_struct *data) |
b481de9c | 2709 | { |
4a8a4322 AK |
2710 | struct iwl_priv *priv = |
2711 | container_of(data, struct iwl_priv, alive_start.work); | |
b481de9c ZY |
2712 | |
2713 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2714 | return; | |
2715 | ||
2716 | mutex_lock(&priv->mutex); | |
bb8c093b | 2717 | iwl3945_alive_start(priv); |
b481de9c ZY |
2718 | mutex_unlock(&priv->mutex); |
2719 | } | |
2720 | ||
743cdf1b BC |
2721 | /* |
2722 | * 3945 cannot interrupt driver when hardware rf kill switch toggles; | |
2723 | * driver must poll CSR_GP_CNTRL_REG register for change. This register | |
2724 | * *is* readable even when device has been SW_RESET into low power mode | |
2725 | * (e.g. during RF KILL). | |
2726 | */ | |
2663516d HS |
2727 | static void iwl3945_rfkill_poll(struct work_struct *data) |
2728 | { | |
2729 | struct iwl_priv *priv = | |
2730 | container_of(data, struct iwl_priv, rfkill_poll.work); | |
743cdf1b BC |
2731 | bool old_rfkill = test_bit(STATUS_RF_KILL_HW, &priv->status); |
2732 | bool new_rfkill = !(iwl_read32(priv, CSR_GP_CNTRL) | |
2733 | & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW); | |
2663516d | 2734 | |
743cdf1b BC |
2735 | if (new_rfkill != old_rfkill) { |
2736 | if (new_rfkill) | |
2737 | set_bit(STATUS_RF_KILL_HW, &priv->status); | |
2738 | else | |
2739 | clear_bit(STATUS_RF_KILL_HW, &priv->status); | |
2663516d | 2740 | |
743cdf1b BC |
2741 | wiphy_rfkill_set_hw_state(priv->hw->wiphy, new_rfkill); |
2742 | ||
2743 | IWL_DEBUG_RF_KILL(priv, "RF_KILL bit toggled to %s.\n", | |
2744 | new_rfkill ? "disable radio" : "enable radio"); | |
2745 | } | |
2663516d | 2746 | |
743cdf1b BC |
2747 | /* Keep this running, even if radio now enabled. This will be |
2748 | * cancelled in mac_start() if system decides to start again */ | |
2663516d HS |
2749 | queue_delayed_work(priv->workqueue, &priv->rfkill_poll, |
2750 | round_jiffies_relative(2 * HZ)); | |
2751 | ||
2752 | } | |
2753 | ||
b481de9c | 2754 | #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ) |
bb8c093b | 2755 | static void iwl3945_bg_request_scan(struct work_struct *data) |
b481de9c | 2756 | { |
4a8a4322 AK |
2757 | struct iwl_priv *priv = |
2758 | container_of(data, struct iwl_priv, request_scan); | |
c2d79b48 | 2759 | struct iwl_host_cmd cmd = { |
b481de9c | 2760 | .id = REPLY_SCAN_CMD, |
bb8c093b | 2761 | .len = sizeof(struct iwl3945_scan_cmd), |
c2acea8e | 2762 | .flags = CMD_SIZE_HUGE, |
b481de9c ZY |
2763 | }; |
2764 | int rc = 0; | |
bb8c093b | 2765 | struct iwl3945_scan_cmd *scan; |
b481de9c | 2766 | struct ieee80211_conf *conf = NULL; |
1ecf9fc1 | 2767 | u8 n_probes = 0; |
8318d78a | 2768 | enum ieee80211_band band; |
1ecf9fc1 | 2769 | bool is_active = false; |
b481de9c ZY |
2770 | |
2771 | conf = ieee80211_get_hw_conf(priv->hw); | |
2772 | ||
2773 | mutex_lock(&priv->mutex); | |
2774 | ||
fbc9f97b RC |
2775 | cancel_delayed_work(&priv->scan_check); |
2776 | ||
775a6e27 | 2777 | if (!iwl_is_ready(priv)) { |
39aadf8c | 2778 | IWL_WARN(priv, "request scan called when driver not ready.\n"); |
b481de9c ZY |
2779 | goto done; |
2780 | } | |
2781 | ||
a96a27f9 | 2782 | /* Make sure the scan wasn't canceled before this queued work |
b481de9c ZY |
2783 | * was given the chance to run... */ |
2784 | if (!test_bit(STATUS_SCANNING, &priv->status)) | |
2785 | goto done; | |
2786 | ||
2787 | /* This should never be called or scheduled if there is currently | |
2788 | * a scan active in the hardware. */ | |
2789 | if (test_bit(STATUS_SCAN_HW, &priv->status)) { | |
e1623446 TW |
2790 | IWL_DEBUG_INFO(priv, "Multiple concurrent scan requests " |
2791 | "Ignoring second request.\n"); | |
b481de9c ZY |
2792 | rc = -EIO; |
2793 | goto done; | |
2794 | } | |
2795 | ||
2796 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { | |
e1623446 | 2797 | IWL_DEBUG_SCAN(priv, "Aborting scan due to device shutdown\n"); |
b481de9c ZY |
2798 | goto done; |
2799 | } | |
2800 | ||
2801 | if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) { | |
e1623446 TW |
2802 | IWL_DEBUG_HC(priv, |
2803 | "Scan request while abort pending. Queuing.\n"); | |
b481de9c ZY |
2804 | goto done; |
2805 | } | |
2806 | ||
775a6e27 | 2807 | if (iwl_is_rfkill(priv)) { |
e1623446 | 2808 | IWL_DEBUG_HC(priv, "Aborting scan due to RF Kill activation\n"); |
b481de9c ZY |
2809 | goto done; |
2810 | } | |
2811 | ||
2812 | if (!test_bit(STATUS_READY, &priv->status)) { | |
e1623446 TW |
2813 | IWL_DEBUG_HC(priv, |
2814 | "Scan request while uninitialized. Queuing.\n"); | |
b481de9c ZY |
2815 | goto done; |
2816 | } | |
2817 | ||
2818 | if (!priv->scan_bands) { | |
e1623446 | 2819 | IWL_DEBUG_HC(priv, "Aborting scan due to no requested bands\n"); |
b481de9c ZY |
2820 | goto done; |
2821 | } | |
2822 | ||
805cee5b WT |
2823 | if (!priv->scan) { |
2824 | priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) + | |
b481de9c | 2825 | IWL_MAX_SCAN_SIZE, GFP_KERNEL); |
805cee5b | 2826 | if (!priv->scan) { |
b481de9c ZY |
2827 | rc = -ENOMEM; |
2828 | goto done; | |
2829 | } | |
2830 | } | |
805cee5b | 2831 | scan = priv->scan; |
bb8c093b | 2832 | memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE); |
b481de9c ZY |
2833 | |
2834 | scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; | |
2835 | scan->quiet_time = IWL_ACTIVE_QUIET_TIME; | |
2836 | ||
8ccde88a | 2837 | if (iwl_is_associated(priv)) { |
b481de9c ZY |
2838 | u16 interval = 0; |
2839 | u32 extra; | |
2840 | u32 suspend_time = 100; | |
2841 | u32 scan_suspend_time = 100; | |
2842 | unsigned long flags; | |
2843 | ||
e1623446 | 2844 | IWL_DEBUG_INFO(priv, "Scanning while associated...\n"); |
b481de9c ZY |
2845 | |
2846 | spin_lock_irqsave(&priv->lock, flags); | |
2847 | interval = priv->beacon_int; | |
2848 | spin_unlock_irqrestore(&priv->lock, flags); | |
2849 | ||
2850 | scan->suspend_time = 0; | |
15e869d8 | 2851 | scan->max_out_time = cpu_to_le32(200 * 1024); |
b481de9c ZY |
2852 | if (!interval) |
2853 | interval = suspend_time; | |
2854 | /* | |
2855 | * suspend time format: | |
2856 | * 0-19: beacon interval in usec (time before exec.) | |
2857 | * 20-23: 0 | |
2858 | * 24-31: number of beacons (suspend between channels) | |
2859 | */ | |
2860 | ||
2861 | extra = (suspend_time / interval) << 24; | |
2862 | scan_suspend_time = 0xFF0FFFFF & | |
2863 | (extra | ((suspend_time % interval) * 1024)); | |
2864 | ||
2865 | scan->suspend_time = cpu_to_le32(scan_suspend_time); | |
e1623446 | 2866 | IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n", |
b481de9c ZY |
2867 | scan_suspend_time, interval); |
2868 | } | |
2869 | ||
1ecf9fc1 JB |
2870 | if (priv->scan_request->n_ssids) { |
2871 | int i, p = 0; | |
2872 | IWL_DEBUG_SCAN(priv, "Kicking off active scan\n"); | |
2873 | for (i = 0; i < priv->scan_request->n_ssids; i++) { | |
2874 | /* always does wildcard anyway */ | |
2875 | if (!priv->scan_request->ssids[i].ssid_len) | |
2876 | continue; | |
2877 | scan->direct_scan[p].id = WLAN_EID_SSID; | |
2878 | scan->direct_scan[p].len = | |
2879 | priv->scan_request->ssids[i].ssid_len; | |
2880 | memcpy(scan->direct_scan[p].ssid, | |
2881 | priv->scan_request->ssids[i].ssid, | |
2882 | priv->scan_request->ssids[i].ssid_len); | |
2883 | n_probes++; | |
2884 | p++; | |
2885 | } | |
2886 | is_active = true; | |
f9340520 | 2887 | } else |
1ecf9fc1 | 2888 | IWL_DEBUG_SCAN(priv, "Kicking off passive scan.\n"); |
b481de9c ZY |
2889 | |
2890 | /* We don't build a direct scan probe request; the uCode will do | |
2891 | * that based on the direct_mask added to each channel entry */ | |
b481de9c | 2892 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
3832ec9d | 2893 | scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id; |
b481de9c ZY |
2894 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
2895 | ||
2896 | /* flags + rate selection */ | |
2897 | ||
66b5004d | 2898 | if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) { |
b481de9c ZY |
2899 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; |
2900 | scan->tx_cmd.rate = IWL_RATE_1M_PLCP; | |
2901 | scan->good_CRC_th = 0; | |
8318d78a | 2902 | band = IEEE80211_BAND_2GHZ; |
66b5004d | 2903 | } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) { |
b481de9c | 2904 | scan->tx_cmd.rate = IWL_RATE_6M_PLCP; |
b097ad29 JB |
2905 | /* |
2906 | * If active scaning is requested but a certain channel | |
2907 | * is marked passive, we can do active scanning if we | |
2908 | * detect transmissions. | |
2909 | */ | |
2910 | scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH : 0; | |
8318d78a | 2911 | band = IEEE80211_BAND_5GHZ; |
66b5004d | 2912 | } else { |
39aadf8c | 2913 | IWL_WARN(priv, "Invalid scan band count\n"); |
b481de9c ZY |
2914 | goto done; |
2915 | } | |
2916 | ||
77fecfb8 | 2917 | scan->tx_cmd.len = cpu_to_le16( |
1ecf9fc1 JB |
2918 | iwl_fill_probe_req(priv, |
2919 | (struct ieee80211_mgmt *)scan->data, | |
2920 | priv->scan_request->ie, | |
2921 | priv->scan_request->ie_len, | |
2922 | IWL_MAX_SCAN_SIZE - sizeof(*scan))); | |
77fecfb8 | 2923 | |
b481de9c ZY |
2924 | /* select Rx antennas */ |
2925 | scan->flags |= iwl3945_get_antenna_flags(priv); | |
2926 | ||
279b05d4 | 2927 | if (iwl_is_monitor_mode(priv)) |
b481de9c ZY |
2928 | scan->filter_flags = RXON_FILTER_PROMISC_MSK; |
2929 | ||
f9340520 | 2930 | scan->channel_count = |
1ecf9fc1 | 2931 | iwl3945_get_channels_for_scan(priv, band, is_active, n_probes, |
f9340520 | 2932 | (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); |
b481de9c | 2933 | |
14b54336 | 2934 | if (scan->channel_count == 0) { |
e1623446 | 2935 | IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count); |
14b54336 RC |
2936 | goto done; |
2937 | } | |
2938 | ||
b481de9c | 2939 | cmd.len += le16_to_cpu(scan->tx_cmd.len) + |
bb8c093b | 2940 | scan->channel_count * sizeof(struct iwl3945_scan_channel); |
b481de9c ZY |
2941 | cmd.data = scan; |
2942 | scan->len = cpu_to_le16(cmd.len); | |
2943 | ||
2944 | set_bit(STATUS_SCAN_HW, &priv->status); | |
518099a8 | 2945 | rc = iwl_send_cmd_sync(priv, &cmd); |
b481de9c ZY |
2946 | if (rc) |
2947 | goto done; | |
2948 | ||
2949 | queue_delayed_work(priv->workqueue, &priv->scan_check, | |
2950 | IWL_SCAN_CHECK_WATCHDOG); | |
2951 | ||
2952 | mutex_unlock(&priv->mutex); | |
2953 | return; | |
2954 | ||
2955 | done: | |
2420ebc1 MA |
2956 | /* can not perform scan make sure we clear scanning |
2957 | * bits from status so next scan request can be performed. | |
2958 | * if we dont clear scanning status bit here all next scan | |
2959 | * will fail | |
2960 | */ | |
2961 | clear_bit(STATUS_SCAN_HW, &priv->status); | |
2962 | clear_bit(STATUS_SCANNING, &priv->status); | |
2963 | ||
01ebd063 | 2964 | /* inform mac80211 scan aborted */ |
b481de9c ZY |
2965 | queue_work(priv->workqueue, &priv->scan_completed); |
2966 | mutex_unlock(&priv->mutex); | |
2967 | } | |
2968 | ||
bb8c093b | 2969 | static void iwl3945_bg_up(struct work_struct *data) |
b481de9c | 2970 | { |
4a8a4322 | 2971 | struct iwl_priv *priv = container_of(data, struct iwl_priv, up); |
b481de9c ZY |
2972 | |
2973 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2974 | return; | |
2975 | ||
2976 | mutex_lock(&priv->mutex); | |
bb8c093b | 2977 | __iwl3945_up(priv); |
b481de9c ZY |
2978 | mutex_unlock(&priv->mutex); |
2979 | } | |
2980 | ||
bb8c093b | 2981 | static void iwl3945_bg_restart(struct work_struct *data) |
b481de9c | 2982 | { |
4a8a4322 | 2983 | struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
b481de9c ZY |
2984 | |
2985 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
2986 | return; | |
2987 | ||
19cc1087 JB |
2988 | if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) { |
2989 | mutex_lock(&priv->mutex); | |
2990 | priv->vif = NULL; | |
2991 | priv->is_open = 0; | |
2992 | mutex_unlock(&priv->mutex); | |
2993 | iwl3945_down(priv); | |
2994 | ieee80211_restart_hw(priv->hw); | |
2995 | } else { | |
2996 | iwl3945_down(priv); | |
2997 | queue_work(priv->workqueue, &priv->up); | |
2998 | } | |
b481de9c ZY |
2999 | } |
3000 | ||
bb8c093b | 3001 | static void iwl3945_bg_rx_replenish(struct work_struct *data) |
b481de9c | 3002 | { |
4a8a4322 AK |
3003 | struct iwl_priv *priv = |
3004 | container_of(data, struct iwl_priv, rx_replenish); | |
b481de9c ZY |
3005 | |
3006 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3007 | return; | |
3008 | ||
3009 | mutex_lock(&priv->mutex); | |
bb8c093b | 3010 | iwl3945_rx_replenish(priv); |
b481de9c ZY |
3011 | mutex_unlock(&priv->mutex); |
3012 | } | |
3013 | ||
7878a5a4 MA |
3014 | #define IWL_DELAY_NEXT_SCAN (HZ*2) |
3015 | ||
5bbe233b | 3016 | void iwl3945_post_associate(struct iwl_priv *priv) |
b481de9c | 3017 | { |
b481de9c ZY |
3018 | int rc = 0; |
3019 | struct ieee80211_conf *conf = NULL; | |
3020 | ||
05c914fe | 3021 | if (priv->iw_mode == NL80211_IFTYPE_AP) { |
15b1687c | 3022 | IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__); |
b481de9c ZY |
3023 | return; |
3024 | } | |
3025 | ||
3026 | ||
e1623446 | 3027 | IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n", |
8ccde88a | 3028 | priv->assoc_id, priv->active_rxon.bssid_addr); |
b481de9c ZY |
3029 | |
3030 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) | |
3031 | return; | |
3032 | ||
322a9811 | 3033 | if (!priv->vif || !priv->is_open) |
6ef89d0a | 3034 | return; |
322a9811 | 3035 | |
af0053d6 | 3036 | iwl_scan_cancel_timeout(priv, 200); |
15e869d8 | 3037 | |
b481de9c ZY |
3038 | conf = ieee80211_get_hw_conf(priv->hw); |
3039 | ||
8ccde88a | 3040 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
e0158e61 | 3041 | iwlcore_commit_rxon(priv); |
b481de9c | 3042 | |
28afaf91 | 3043 | memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd)); |
2c2f3b33 | 3044 | iwl_setup_rxon_timing(priv); |
518099a8 | 3045 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
b481de9c ZY |
3046 | sizeof(priv->rxon_timing), &priv->rxon_timing); |
3047 | if (rc) | |
39aadf8c | 3048 | IWL_WARN(priv, "REPLY_RXON_TIMING failed - " |
b481de9c ZY |
3049 | "Attempting to continue.\n"); |
3050 | ||
8ccde88a | 3051 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
b481de9c | 3052 | |
8ccde88a | 3053 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
b481de9c | 3054 | |
e1623446 | 3055 | IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n", |
b481de9c ZY |
3056 | priv->assoc_id, priv->beacon_int); |
3057 | ||
3058 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) | |
8ccde88a | 3059 | priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
b481de9c | 3060 | else |
8ccde88a | 3061 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
b481de9c | 3062 | |
8ccde88a | 3063 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { |
b481de9c | 3064 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME) |
8ccde88a | 3065 | priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK; |
b481de9c | 3066 | else |
8ccde88a | 3067 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
b481de9c | 3068 | |
05c914fe | 3069 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
8ccde88a | 3070 | priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
b481de9c ZY |
3071 | |
3072 | } | |
3073 | ||
e0158e61 | 3074 | iwlcore_commit_rxon(priv); |
b481de9c ZY |
3075 | |
3076 | switch (priv->iw_mode) { | |
05c914fe | 3077 | case NL80211_IFTYPE_STATION: |
bb8c093b | 3078 | iwl3945_rate_scale_init(priv->hw, IWL_AP_ID); |
b481de9c ZY |
3079 | break; |
3080 | ||
05c914fe | 3081 | case NL80211_IFTYPE_ADHOC: |
b481de9c | 3082 | |
ce546fd2 | 3083 | priv->assoc_id = 1; |
c587de0b | 3084 | iwl_add_station(priv, priv->bssid, 0, CMD_SYNC, NULL); |
b481de9c | 3085 | iwl3945_sync_sta(priv, IWL_STA_ID, |
8318d78a | 3086 | (priv->band == IEEE80211_BAND_5GHZ) ? |
b481de9c ZY |
3087 | IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP, |
3088 | CMD_ASYNC); | |
bb8c093b CH |
3089 | iwl3945_rate_scale_init(priv->hw, IWL_STA_ID); |
3090 | iwl3945_send_beacon_cmd(priv); | |
b481de9c ZY |
3091 | |
3092 | break; | |
3093 | ||
3094 | default: | |
15b1687c | 3095 | IWL_ERR(priv, "%s Should not be called in %d mode\n", |
3ac7f146 | 3096 | __func__, priv->iw_mode); |
b481de9c ZY |
3097 | break; |
3098 | } | |
3099 | ||
14d2aac5 | 3100 | iwl_activate_qos(priv, 0); |
292ae174 | 3101 | |
7878a5a4 MA |
3102 | /* we have just associated, don't start scan too early */ |
3103 | priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN; | |
cd56d331 AK |
3104 | } |
3105 | ||
b481de9c ZY |
3106 | /***************************************************************************** |
3107 | * | |
3108 | * mac80211 entry point functions | |
3109 | * | |
3110 | *****************************************************************************/ | |
3111 | ||
5a66926a ZY |
3112 | #define UCODE_READY_TIMEOUT (2 * HZ) |
3113 | ||
bb8c093b | 3114 | static int iwl3945_mac_start(struct ieee80211_hw *hw) |
b481de9c | 3115 | { |
4a8a4322 | 3116 | struct iwl_priv *priv = hw->priv; |
5a66926a | 3117 | int ret; |
b481de9c | 3118 | |
e1623446 | 3119 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c ZY |
3120 | |
3121 | /* we should be verifying the device is ready to be opened */ | |
3122 | mutex_lock(&priv->mutex); | |
3123 | ||
5a66926a ZY |
3124 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... |
3125 | * ucode filename and max sizes are card-specific. */ | |
3126 | ||
3127 | if (!priv->ucode_code.len) { | |
3128 | ret = iwl3945_read_ucode(priv); | |
3129 | if (ret) { | |
15b1687c | 3130 | IWL_ERR(priv, "Could not read microcode: %d\n", ret); |
5a66926a ZY |
3131 | mutex_unlock(&priv->mutex); |
3132 | goto out_release_irq; | |
3133 | } | |
3134 | } | |
b481de9c | 3135 | |
e655b9f0 | 3136 | ret = __iwl3945_up(priv); |
b481de9c ZY |
3137 | |
3138 | mutex_unlock(&priv->mutex); | |
5a66926a | 3139 | |
e655b9f0 ZY |
3140 | if (ret) |
3141 | goto out_release_irq; | |
3142 | ||
e1623446 | 3143 | IWL_DEBUG_INFO(priv, "Start UP work.\n"); |
e655b9f0 | 3144 | |
5a66926a ZY |
3145 | /* Wait for START_ALIVE from ucode. Otherwise callbacks from |
3146 | * mac80211 will not be run successfully. */ | |
3147 | ret = wait_event_interruptible_timeout(priv->wait_command_queue, | |
3148 | test_bit(STATUS_READY, &priv->status), | |
3149 | UCODE_READY_TIMEOUT); | |
3150 | if (!ret) { | |
3151 | if (!test_bit(STATUS_READY, &priv->status)) { | |
15b1687c WT |
3152 | IWL_ERR(priv, |
3153 | "Wait for START_ALIVE timeout after %dms.\n", | |
3154 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
5a66926a ZY |
3155 | ret = -ETIMEDOUT; |
3156 | goto out_release_irq; | |
3157 | } | |
3158 | } | |
3159 | ||
2663516d HS |
3160 | /* ucode is running and will send rfkill notifications, |
3161 | * no need to poll the killswitch state anymore */ | |
3162 | cancel_delayed_work(&priv->rfkill_poll); | |
3163 | ||
e932a609 JB |
3164 | iwl_led_start(priv); |
3165 | ||
e655b9f0 | 3166 | priv->is_open = 1; |
e1623446 | 3167 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c | 3168 | return 0; |
5a66926a ZY |
3169 | |
3170 | out_release_irq: | |
e655b9f0 | 3171 | priv->is_open = 0; |
e1623446 | 3172 | IWL_DEBUG_MAC80211(priv, "leave - failed\n"); |
5a66926a | 3173 | return ret; |
b481de9c ZY |
3174 | } |
3175 | ||
bb8c093b | 3176 | static void iwl3945_mac_stop(struct ieee80211_hw *hw) |
b481de9c | 3177 | { |
4a8a4322 | 3178 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3179 | |
e1623446 | 3180 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
6ef89d0a | 3181 | |
e655b9f0 | 3182 | if (!priv->is_open) { |
e1623446 | 3183 | IWL_DEBUG_MAC80211(priv, "leave - skip\n"); |
e655b9f0 ZY |
3184 | return; |
3185 | } | |
3186 | ||
b481de9c | 3187 | priv->is_open = 0; |
5a66926a | 3188 | |
775a6e27 | 3189 | if (iwl_is_ready_rf(priv)) { |
e655b9f0 ZY |
3190 | /* stop mac, cancel any scan request and clear |
3191 | * RXON_FILTER_ASSOC_MSK BIT | |
3192 | */ | |
5a66926a | 3193 | mutex_lock(&priv->mutex); |
af0053d6 | 3194 | iwl_scan_cancel_timeout(priv, 100); |
fde3571f | 3195 | mutex_unlock(&priv->mutex); |
fde3571f MA |
3196 | } |
3197 | ||
5a66926a ZY |
3198 | iwl3945_down(priv); |
3199 | ||
3200 | flush_workqueue(priv->workqueue); | |
2663516d HS |
3201 | |
3202 | /* start polling the killswitch state again */ | |
3203 | queue_delayed_work(priv->workqueue, &priv->rfkill_poll, | |
3204 | round_jiffies_relative(2 * HZ)); | |
6ef89d0a | 3205 | |
e1623446 | 3206 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c ZY |
3207 | } |
3208 | ||
e039fa4a | 3209 | static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
b481de9c | 3210 | { |
4a8a4322 | 3211 | struct iwl_priv *priv = hw->priv; |
b481de9c | 3212 | |
e1623446 | 3213 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c | 3214 | |
e1623446 | 3215 | IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
e039fa4a | 3216 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
b481de9c | 3217 | |
e039fa4a | 3218 | if (iwl3945_tx_skb(priv, skb)) |
b481de9c ZY |
3219 | dev_kfree_skb_any(skb); |
3220 | ||
e1623446 | 3221 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
637f8837 | 3222 | return NETDEV_TX_OK; |
b481de9c ZY |
3223 | } |
3224 | ||
60690a6a | 3225 | void iwl3945_config_ap(struct iwl_priv *priv) |
b481de9c ZY |
3226 | { |
3227 | int rc = 0; | |
3228 | ||
d986bcd1 | 3229 | if (test_bit(STATUS_EXIT_PENDING, &priv->status)) |
b481de9c ZY |
3230 | return; |
3231 | ||
3232 | /* The following should be done only at AP bring up */ | |
8ccde88a | 3233 | if (!(iwl_is_associated(priv))) { |
b481de9c ZY |
3234 | |
3235 | /* RXON - unassoc (to set timing command) */ | |
8ccde88a | 3236 | priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
e0158e61 | 3237 | iwlcore_commit_rxon(priv); |
b481de9c ZY |
3238 | |
3239 | /* RXON Timing */ | |
28afaf91 | 3240 | memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd)); |
2c2f3b33 | 3241 | iwl_setup_rxon_timing(priv); |
518099a8 SO |
3242 | rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING, |
3243 | sizeof(priv->rxon_timing), | |
3244 | &priv->rxon_timing); | |
b481de9c | 3245 | if (rc) |
39aadf8c | 3246 | IWL_WARN(priv, "REPLY_RXON_TIMING failed - " |
b481de9c ZY |
3247 | "Attempting to continue.\n"); |
3248 | ||
3249 | /* FIXME: what should be the assoc_id for AP? */ | |
8ccde88a | 3250 | priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id); |
b481de9c | 3251 | if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE) |
8ccde88a | 3252 | priv->staging_rxon.flags |= |
b481de9c ZY |
3253 | RXON_FLG_SHORT_PREAMBLE_MSK; |
3254 | else | |
8ccde88a | 3255 | priv->staging_rxon.flags &= |
b481de9c ZY |
3256 | ~RXON_FLG_SHORT_PREAMBLE_MSK; |
3257 | ||
8ccde88a | 3258 | if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) { |
b481de9c ZY |
3259 | if (priv->assoc_capability & |
3260 | WLAN_CAPABILITY_SHORT_SLOT_TIME) | |
8ccde88a | 3261 | priv->staging_rxon.flags |= |
b481de9c ZY |
3262 | RXON_FLG_SHORT_SLOT_MSK; |
3263 | else | |
8ccde88a | 3264 | priv->staging_rxon.flags &= |
b481de9c ZY |
3265 | ~RXON_FLG_SHORT_SLOT_MSK; |
3266 | ||
05c914fe | 3267 | if (priv->iw_mode == NL80211_IFTYPE_ADHOC) |
8ccde88a | 3268 | priv->staging_rxon.flags &= |
b481de9c ZY |
3269 | ~RXON_FLG_SHORT_SLOT_MSK; |
3270 | } | |
3271 | /* restore RXON assoc */ | |
8ccde88a | 3272 | priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK; |
e0158e61 | 3273 | iwlcore_commit_rxon(priv); |
c587de0b | 3274 | iwl_add_station(priv, iwl_bcast_addr, 0, CMD_SYNC, NULL); |
556f8db7 | 3275 | } |
bb8c093b | 3276 | iwl3945_send_beacon_cmd(priv); |
b481de9c ZY |
3277 | |
3278 | /* FIXME - we need to add code here to detect a totally new | |
3279 | * configuration, reset the AP, unassoc, rxon timing, assoc, | |
3280 | * clear sta table, add BCAST sta... */ | |
3281 | } | |
3282 | ||
bb8c093b | 3283 | static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
dc822b5d JB |
3284 | struct ieee80211_vif *vif, |
3285 | struct ieee80211_sta *sta, | |
3286 | struct ieee80211_key_conf *key) | |
b481de9c | 3287 | { |
4a8a4322 | 3288 | struct iwl_priv *priv = hw->priv; |
dc822b5d | 3289 | const u8 *addr; |
6e21f15c AK |
3290 | int ret = 0; |
3291 | u8 sta_id = IWL_INVALID_STATION; | |
3292 | u8 static_key; | |
b481de9c | 3293 | |
e1623446 | 3294 | IWL_DEBUG_MAC80211(priv, "enter\n"); |
b481de9c | 3295 | |
df878d8f | 3296 | if (iwl3945_mod_params.sw_crypto) { |
e1623446 | 3297 | IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
b481de9c ZY |
3298 | return -EOPNOTSUPP; |
3299 | } | |
3300 | ||
42986796 | 3301 | addr = sta ? sta->addr : iwl_bcast_addr; |
6e21f15c AK |
3302 | static_key = !iwl_is_associated(priv); |
3303 | ||
3304 | if (!static_key) { | |
c587de0b | 3305 | sta_id = iwl_find_station(priv, addr); |
6e21f15c | 3306 | if (sta_id == IWL_INVALID_STATION) { |
12514396 | 3307 | IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n", |
6e21f15c AK |
3308 | addr); |
3309 | return -EINVAL; | |
3310 | } | |
b481de9c ZY |
3311 | } |
3312 | ||
3313 | mutex_lock(&priv->mutex); | |
af0053d6 | 3314 | iwl_scan_cancel_timeout(priv, 100); |
6e21f15c | 3315 | mutex_unlock(&priv->mutex); |
15e869d8 | 3316 | |
b481de9c | 3317 | switch (cmd) { |
6e21f15c AK |
3318 | case SET_KEY: |
3319 | if (static_key) | |
3320 | ret = iwl3945_set_static_key(priv, key); | |
3321 | else | |
3322 | ret = iwl3945_set_dynamic_key(priv, key, sta_id); | |
3323 | IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); | |
b481de9c ZY |
3324 | break; |
3325 | case DISABLE_KEY: | |
6e21f15c AK |
3326 | if (static_key) |
3327 | ret = iwl3945_remove_static_key(priv); | |
3328 | else | |
3329 | ret = iwl3945_clear_sta_key_info(priv, sta_id); | |
3330 | IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); | |
b481de9c ZY |
3331 | break; |
3332 | default: | |
42986796 | 3333 | ret = -EINVAL; |
b481de9c ZY |
3334 | } |
3335 | ||
e1623446 | 3336 | IWL_DEBUG_MAC80211(priv, "leave\n"); |
b481de9c | 3337 | |
42986796 | 3338 | return ret; |
b481de9c ZY |
3339 | } |
3340 | ||
b481de9c ZY |
3341 | /***************************************************************************** |
3342 | * | |
3343 | * sysfs attributes | |
3344 | * | |
3345 | *****************************************************************************/ | |
3346 | ||
d08853a3 | 3347 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
3348 | |
3349 | /* | |
3350 | * The following adds a new attribute to the sysfs representation | |
3351 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
3352 | * used for controlling the debug level. | |
3353 | * | |
3354 | * See the level definitions in iwl for details. | |
a562a9dd | 3355 | * |
3d816c77 RC |
3356 | * The debug_level being managed using sysfs below is a per device debug |
3357 | * level that is used instead of the global debug level if it (the per | |
3358 | * device debug level) is set. | |
b481de9c | 3359 | */ |
40b8ec0b SO |
3360 | static ssize_t show_debug_level(struct device *d, |
3361 | struct device_attribute *attr, char *buf) | |
b481de9c | 3362 | { |
3d816c77 RC |
3363 | struct iwl_priv *priv = dev_get_drvdata(d); |
3364 | return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv)); | |
b481de9c | 3365 | } |
40b8ec0b SO |
3366 | static ssize_t store_debug_level(struct device *d, |
3367 | struct device_attribute *attr, | |
b481de9c ZY |
3368 | const char *buf, size_t count) |
3369 | { | |
928841b1 | 3370 | struct iwl_priv *priv = dev_get_drvdata(d); |
40b8ec0b SO |
3371 | unsigned long val; |
3372 | int ret; | |
b481de9c | 3373 | |
40b8ec0b SO |
3374 | ret = strict_strtoul(buf, 0, &val); |
3375 | if (ret) | |
978785a3 | 3376 | IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf); |
20594eb0 | 3377 | else { |
3d816c77 | 3378 | priv->debug_level = val; |
20594eb0 WYG |
3379 | if (iwl_alloc_traffic_mem(priv)) |
3380 | IWL_ERR(priv, | |
3381 | "Not enough memory to generate traffic log\n"); | |
3382 | } | |
b481de9c ZY |
3383 | return strnlen(buf, count); |
3384 | } | |
3385 | ||
40b8ec0b SO |
3386 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
3387 | show_debug_level, store_debug_level); | |
b481de9c | 3388 | |
d08853a3 | 3389 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
b481de9c | 3390 | |
b481de9c ZY |
3391 | static ssize_t show_temperature(struct device *d, |
3392 | struct device_attribute *attr, char *buf) | |
3393 | { | |
928841b1 | 3394 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c | 3395 | |
775a6e27 | 3396 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3397 | return -EAGAIN; |
3398 | ||
bb8c093b | 3399 | return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv)); |
b481de9c ZY |
3400 | } |
3401 | ||
3402 | static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); | |
3403 | ||
b481de9c ZY |
3404 | static ssize_t show_tx_power(struct device *d, |
3405 | struct device_attribute *attr, char *buf) | |
3406 | { | |
928841b1 | 3407 | struct iwl_priv *priv = dev_get_drvdata(d); |
62ea9c5b | 3408 | return sprintf(buf, "%d\n", priv->tx_power_user_lmt); |
b481de9c ZY |
3409 | } |
3410 | ||
3411 | static ssize_t store_tx_power(struct device *d, | |
3412 | struct device_attribute *attr, | |
3413 | const char *buf, size_t count) | |
3414 | { | |
928841b1 | 3415 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3416 | char *p = (char *)buf; |
3417 | u32 val; | |
3418 | ||
3419 | val = simple_strtoul(p, &p, 10); | |
3420 | if (p == buf) | |
978785a3 | 3421 | IWL_INFO(priv, ": %s is not in decimal form.\n", buf); |
b481de9c | 3422 | else |
bb8c093b | 3423 | iwl3945_hw_reg_set_txpower(priv, val); |
b481de9c ZY |
3424 | |
3425 | return count; | |
3426 | } | |
3427 | ||
3428 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); | |
3429 | ||
3430 | static ssize_t show_flags(struct device *d, | |
3431 | struct device_attribute *attr, char *buf) | |
3432 | { | |
928841b1 | 3433 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c | 3434 | |
8ccde88a | 3435 | return sprintf(buf, "0x%04X\n", priv->active_rxon.flags); |
b481de9c ZY |
3436 | } |
3437 | ||
3438 | static ssize_t store_flags(struct device *d, | |
3439 | struct device_attribute *attr, | |
3440 | const char *buf, size_t count) | |
3441 | { | |
928841b1 | 3442 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3443 | u32 flags = simple_strtoul(buf, NULL, 0); |
3444 | ||
3445 | mutex_lock(&priv->mutex); | |
8ccde88a | 3446 | if (le32_to_cpu(priv->staging_rxon.flags) != flags) { |
b481de9c | 3447 | /* Cancel any currently running scans... */ |
af0053d6 | 3448 | if (iwl_scan_cancel_timeout(priv, 100)) |
39aadf8c | 3449 | IWL_WARN(priv, "Could not cancel scan.\n"); |
b481de9c | 3450 | else { |
e1623446 | 3451 | IWL_DEBUG_INFO(priv, "Committing rxon.flags = 0x%04X\n", |
b481de9c | 3452 | flags); |
8ccde88a | 3453 | priv->staging_rxon.flags = cpu_to_le32(flags); |
e0158e61 | 3454 | iwlcore_commit_rxon(priv); |
b481de9c ZY |
3455 | } |
3456 | } | |
3457 | mutex_unlock(&priv->mutex); | |
3458 | ||
3459 | return count; | |
3460 | } | |
3461 | ||
3462 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags); | |
3463 | ||
3464 | static ssize_t show_filter_flags(struct device *d, | |
3465 | struct device_attribute *attr, char *buf) | |
3466 | { | |
928841b1 | 3467 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3468 | |
3469 | return sprintf(buf, "0x%04X\n", | |
8ccde88a | 3470 | le32_to_cpu(priv->active_rxon.filter_flags)); |
b481de9c ZY |
3471 | } |
3472 | ||
3473 | static ssize_t store_filter_flags(struct device *d, | |
3474 | struct device_attribute *attr, | |
3475 | const char *buf, size_t count) | |
3476 | { | |
928841b1 | 3477 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3478 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
3479 | ||
3480 | mutex_lock(&priv->mutex); | |
8ccde88a | 3481 | if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) { |
b481de9c | 3482 | /* Cancel any currently running scans... */ |
af0053d6 | 3483 | if (iwl_scan_cancel_timeout(priv, 100)) |
39aadf8c | 3484 | IWL_WARN(priv, "Could not cancel scan.\n"); |
b481de9c | 3485 | else { |
e1623446 | 3486 | IWL_DEBUG_INFO(priv, "Committing rxon.filter_flags = " |
b481de9c | 3487 | "0x%04X\n", filter_flags); |
8ccde88a | 3488 | priv->staging_rxon.filter_flags = |
b481de9c | 3489 | cpu_to_le32(filter_flags); |
e0158e61 | 3490 | iwlcore_commit_rxon(priv); |
b481de9c ZY |
3491 | } |
3492 | } | |
3493 | mutex_unlock(&priv->mutex); | |
3494 | ||
3495 | return count; | |
3496 | } | |
3497 | ||
3498 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags, | |
3499 | store_filter_flags); | |
3500 | ||
c8b0e6e1 | 3501 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
3502 | |
3503 | static ssize_t show_measurement(struct device *d, | |
3504 | struct device_attribute *attr, char *buf) | |
3505 | { | |
4a8a4322 | 3506 | struct iwl_priv *priv = dev_get_drvdata(d); |
600c0e11 | 3507 | struct iwl_spectrum_notification measure_report; |
b481de9c | 3508 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
3ac7f146 | 3509 | u8 *data = (u8 *)&measure_report; |
b481de9c ZY |
3510 | unsigned long flags; |
3511 | ||
3512 | spin_lock_irqsave(&priv->lock, flags); | |
3513 | if (!(priv->measurement_status & MEASUREMENT_READY)) { | |
3514 | spin_unlock_irqrestore(&priv->lock, flags); | |
3515 | return 0; | |
3516 | } | |
3517 | memcpy(&measure_report, &priv->measure_report, size); | |
3518 | priv->measurement_status = 0; | |
3519 | spin_unlock_irqrestore(&priv->lock, flags); | |
3520 | ||
3521 | while (size && (PAGE_SIZE - len)) { | |
3522 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
3523 | PAGE_SIZE - len, 1); | |
3524 | len = strlen(buf); | |
3525 | if (PAGE_SIZE - len) | |
3526 | buf[len++] = '\n'; | |
3527 | ||
3528 | ofs += 16; | |
3529 | size -= min(size, 16U); | |
3530 | } | |
3531 | ||
3532 | return len; | |
3533 | } | |
3534 | ||
3535 | static ssize_t store_measurement(struct device *d, | |
3536 | struct device_attribute *attr, | |
3537 | const char *buf, size_t count) | |
3538 | { | |
4a8a4322 | 3539 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c | 3540 | struct ieee80211_measurement_params params = { |
8ccde88a | 3541 | .channel = le16_to_cpu(priv->active_rxon.channel), |
b481de9c ZY |
3542 | .start_time = cpu_to_le64(priv->last_tsf), |
3543 | .duration = cpu_to_le16(1), | |
3544 | }; | |
3545 | u8 type = IWL_MEASURE_BASIC; | |
3546 | u8 buffer[32]; | |
3547 | u8 channel; | |
3548 | ||
3549 | if (count) { | |
3550 | char *p = buffer; | |
3551 | strncpy(buffer, buf, min(sizeof(buffer), count)); | |
3552 | channel = simple_strtoul(p, NULL, 0); | |
3553 | if (channel) | |
3554 | params.channel = channel; | |
3555 | ||
3556 | p = buffer; | |
3557 | while (*p && *p != ' ') | |
3558 | p++; | |
3559 | if (*p) | |
3560 | type = simple_strtoul(p + 1, NULL, 0); | |
3561 | } | |
3562 | ||
e1623446 | 3563 | IWL_DEBUG_INFO(priv, "Invoking measurement of type %d on " |
b481de9c | 3564 | "channel %d (for '%s')\n", type, params.channel, buf); |
bb8c093b | 3565 | iwl3945_get_measurement(priv, ¶ms, type); |
b481de9c ZY |
3566 | |
3567 | return count; | |
3568 | } | |
3569 | ||
3570 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, | |
3571 | show_measurement, store_measurement); | |
c8b0e6e1 | 3572 | #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */ |
b481de9c | 3573 | |
b481de9c ZY |
3574 | static ssize_t store_retry_rate(struct device *d, |
3575 | struct device_attribute *attr, | |
3576 | const char *buf, size_t count) | |
3577 | { | |
4a8a4322 | 3578 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3579 | |
3580 | priv->retry_rate = simple_strtoul(buf, NULL, 0); | |
3581 | if (priv->retry_rate <= 0) | |
3582 | priv->retry_rate = 1; | |
3583 | ||
3584 | return count; | |
3585 | } | |
3586 | ||
3587 | static ssize_t show_retry_rate(struct device *d, | |
3588 | struct device_attribute *attr, char *buf) | |
3589 | { | |
4a8a4322 | 3590 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3591 | return sprintf(buf, "%d", priv->retry_rate); |
3592 | } | |
3593 | ||
3594 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate, | |
3595 | store_retry_rate); | |
3596 | ||
d25aabb0 | 3597 | |
b481de9c ZY |
3598 | static ssize_t show_channels(struct device *d, |
3599 | struct device_attribute *attr, char *buf) | |
3600 | { | |
8318d78a JB |
3601 | /* all this shit doesn't belong into sysfs anyway */ |
3602 | return 0; | |
b481de9c ZY |
3603 | } |
3604 | ||
3605 | static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL); | |
3606 | ||
3607 | static ssize_t show_statistics(struct device *d, | |
3608 | struct device_attribute *attr, char *buf) | |
3609 | { | |
4a8a4322 | 3610 | struct iwl_priv *priv = dev_get_drvdata(d); |
bb8c093b | 3611 | u32 size = sizeof(struct iwl3945_notif_statistics); |
b481de9c | 3612 | u32 len = 0, ofs = 0; |
f2c7e521 | 3613 | u8 *data = (u8 *)&priv->statistics_39; |
b481de9c ZY |
3614 | int rc = 0; |
3615 | ||
775a6e27 | 3616 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3617 | return -EAGAIN; |
3618 | ||
3619 | mutex_lock(&priv->mutex); | |
17f841cd | 3620 | rc = iwl_send_statistics_request(priv, 0); |
b481de9c ZY |
3621 | mutex_unlock(&priv->mutex); |
3622 | ||
3623 | if (rc) { | |
3624 | len = sprintf(buf, | |
3625 | "Error sending statistics request: 0x%08X\n", rc); | |
3626 | return len; | |
3627 | } | |
3628 | ||
3629 | while (size && (PAGE_SIZE - len)) { | |
3630 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, | |
3631 | PAGE_SIZE - len, 1); | |
3632 | len = strlen(buf); | |
3633 | if (PAGE_SIZE - len) | |
3634 | buf[len++] = '\n'; | |
3635 | ||
3636 | ofs += 16; | |
3637 | size -= min(size, 16U); | |
3638 | } | |
3639 | ||
3640 | return len; | |
3641 | } | |
3642 | ||
3643 | static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL); | |
3644 | ||
3645 | static ssize_t show_antenna(struct device *d, | |
3646 | struct device_attribute *attr, char *buf) | |
3647 | { | |
4a8a4322 | 3648 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c | 3649 | |
775a6e27 | 3650 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3651 | return -EAGAIN; |
3652 | ||
7e4bca5e | 3653 | return sprintf(buf, "%d\n", iwl3945_mod_params.antenna); |
b481de9c ZY |
3654 | } |
3655 | ||
3656 | static ssize_t store_antenna(struct device *d, | |
3657 | struct device_attribute *attr, | |
3658 | const char *buf, size_t count) | |
3659 | { | |
7530f85f | 3660 | struct iwl_priv *priv __maybe_unused = dev_get_drvdata(d); |
b481de9c | 3661 | int ant; |
b481de9c ZY |
3662 | |
3663 | if (count == 0) | |
3664 | return 0; | |
3665 | ||
3666 | if (sscanf(buf, "%1i", &ant) != 1) { | |
e1623446 | 3667 | IWL_DEBUG_INFO(priv, "not in hex or decimal form.\n"); |
b481de9c ZY |
3668 | return count; |
3669 | } | |
3670 | ||
3671 | if ((ant >= 0) && (ant <= 2)) { | |
e1623446 | 3672 | IWL_DEBUG_INFO(priv, "Setting antenna select to %d.\n", ant); |
7e4bca5e | 3673 | iwl3945_mod_params.antenna = (enum iwl3945_antenna)ant; |
b481de9c | 3674 | } else |
e1623446 | 3675 | IWL_DEBUG_INFO(priv, "Bad antenna select value %d.\n", ant); |
b481de9c ZY |
3676 | |
3677 | ||
3678 | return count; | |
3679 | } | |
3680 | ||
3681 | static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna); | |
3682 | ||
3683 | static ssize_t show_status(struct device *d, | |
3684 | struct device_attribute *attr, char *buf) | |
3685 | { | |
928841b1 | 3686 | struct iwl_priv *priv = dev_get_drvdata(d); |
775a6e27 | 3687 | if (!iwl_is_alive(priv)) |
b481de9c ZY |
3688 | return -EAGAIN; |
3689 | return sprintf(buf, "0x%08x\n", (int)priv->status); | |
3690 | } | |
3691 | ||
3692 | static DEVICE_ATTR(status, S_IRUGO, show_status, NULL); | |
3693 | ||
3694 | static ssize_t dump_error_log(struct device *d, | |
3695 | struct device_attribute *attr, | |
3696 | const char *buf, size_t count) | |
3697 | { | |
928841b1 | 3698 | struct iwl_priv *priv = dev_get_drvdata(d); |
b481de9c ZY |
3699 | char *p = (char *)buf; |
3700 | ||
3701 | if (p[0] == '1') | |
928841b1 | 3702 | iwl3945_dump_nic_error_log(priv); |
b481de9c ZY |
3703 | |
3704 | return strnlen(buf, count); | |
3705 | } | |
3706 | ||
3707 | static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log); | |
3708 | ||
b481de9c ZY |
3709 | /***************************************************************************** |
3710 | * | |
a96a27f9 | 3711 | * driver setup and tear down |
b481de9c ZY |
3712 | * |
3713 | *****************************************************************************/ | |
3714 | ||
4a8a4322 | 3715 | static void iwl3945_setup_deferred_work(struct iwl_priv *priv) |
b481de9c | 3716 | { |
d21050c7 | 3717 | priv->workqueue = create_singlethread_workqueue(DRV_NAME); |
b481de9c ZY |
3718 | |
3719 | init_waitqueue_head(&priv->wait_command_queue); | |
3720 | ||
bb8c093b CH |
3721 | INIT_WORK(&priv->up, iwl3945_bg_up); |
3722 | INIT_WORK(&priv->restart, iwl3945_bg_restart); | |
3723 | INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish); | |
bb8c093b | 3724 | INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update); |
bb8c093b CH |
3725 | INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start); |
3726 | INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start); | |
2663516d | 3727 | INIT_DELAYED_WORK(&priv->rfkill_poll, iwl3945_rfkill_poll); |
77fecfb8 SO |
3728 | INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed); |
3729 | INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan); | |
3730 | INIT_WORK(&priv->abort_scan, iwl_bg_abort_scan); | |
3731 | INIT_DELAYED_WORK(&priv->scan_check, iwl_bg_scan_check); | |
bb8c093b CH |
3732 | |
3733 | iwl3945_hw_setup_deferred_work(priv); | |
b481de9c ZY |
3734 | |
3735 | tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long)) | |
bb8c093b | 3736 | iwl3945_irq_tasklet, (unsigned long)priv); |
b481de9c ZY |
3737 | } |
3738 | ||
4a8a4322 | 3739 | static void iwl3945_cancel_deferred_work(struct iwl_priv *priv) |
b481de9c | 3740 | { |
bb8c093b | 3741 | iwl3945_hw_cancel_deferred_work(priv); |
b481de9c | 3742 | |
e47eb6ad | 3743 | cancel_delayed_work_sync(&priv->init_alive_start); |
b481de9c ZY |
3744 | cancel_delayed_work(&priv->scan_check); |
3745 | cancel_delayed_work(&priv->alive_start); | |
b481de9c ZY |
3746 | cancel_work_sync(&priv->beacon_update); |
3747 | } | |
3748 | ||
bb8c093b | 3749 | static struct attribute *iwl3945_sysfs_entries[] = { |
b481de9c ZY |
3750 | &dev_attr_antenna.attr, |
3751 | &dev_attr_channels.attr, | |
3752 | &dev_attr_dump_errors.attr, | |
b481de9c ZY |
3753 | &dev_attr_flags.attr, |
3754 | &dev_attr_filter_flags.attr, | |
c8b0e6e1 | 3755 | #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT |
b481de9c ZY |
3756 | &dev_attr_measurement.attr, |
3757 | #endif | |
b481de9c | 3758 | &dev_attr_retry_rate.attr, |
b481de9c ZY |
3759 | &dev_attr_statistics.attr, |
3760 | &dev_attr_status.attr, | |
3761 | &dev_attr_temperature.attr, | |
b481de9c | 3762 | &dev_attr_tx_power.attr, |
d08853a3 | 3763 | #ifdef CONFIG_IWLWIFI_DEBUG |
40b8ec0b SO |
3764 | &dev_attr_debug_level.attr, |
3765 | #endif | |
b481de9c ZY |
3766 | NULL |
3767 | }; | |
3768 | ||
bb8c093b | 3769 | static struct attribute_group iwl3945_attribute_group = { |
b481de9c | 3770 | .name = NULL, /* put in device directory */ |
bb8c093b | 3771 | .attrs = iwl3945_sysfs_entries, |
b481de9c ZY |
3772 | }; |
3773 | ||
bb8c093b CH |
3774 | static struct ieee80211_ops iwl3945_hw_ops = { |
3775 | .tx = iwl3945_mac_tx, | |
3776 | .start = iwl3945_mac_start, | |
3777 | .stop = iwl3945_mac_stop, | |
cbb6ab94 | 3778 | .add_interface = iwl_mac_add_interface, |
d8052319 | 3779 | .remove_interface = iwl_mac_remove_interface, |
4808368d | 3780 | .config = iwl_mac_config, |
8ccde88a | 3781 | .configure_filter = iwl_configure_filter, |
bb8c093b | 3782 | .set_key = iwl3945_mac_set_key, |
aa89f31e | 3783 | .get_tx_stats = iwl_mac_get_tx_stats, |
488829f1 | 3784 | .conf_tx = iwl_mac_conf_tx, |
bd564261 | 3785 | .reset_tsf = iwl_mac_reset_tsf, |
5bbe233b | 3786 | .bss_info_changed = iwl_bss_info_changed, |
e9dde6f6 | 3787 | .hw_scan = iwl_mac_hw_scan |
b481de9c ZY |
3788 | }; |
3789 | ||
e52119c5 | 3790 | static int iwl3945_init_drv(struct iwl_priv *priv) |
90a30a02 KA |
3791 | { |
3792 | int ret; | |
e6148917 | 3793 | struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom; |
90a30a02 KA |
3794 | |
3795 | priv->retry_rate = 1; | |
3796 | priv->ibss_beacon = NULL; | |
3797 | ||
3798 | spin_lock_init(&priv->lock); | |
90a30a02 KA |
3799 | spin_lock_init(&priv->sta_lock); |
3800 | spin_lock_init(&priv->hcmd_lock); | |
3801 | ||
3802 | INIT_LIST_HEAD(&priv->free_frames); | |
3803 | ||
3804 | mutex_init(&priv->mutex); | |
3805 | ||
3806 | /* Clear the driver's (not device's) station table */ | |
c587de0b | 3807 | iwl_clear_stations_table(priv); |
90a30a02 | 3808 | |
90a30a02 KA |
3809 | priv->ieee_channels = NULL; |
3810 | priv->ieee_rates = NULL; | |
3811 | priv->band = IEEE80211_BAND_2GHZ; | |
3812 | ||
3813 | priv->iw_mode = NL80211_IFTYPE_STATION; | |
3814 | ||
3815 | iwl_reset_qos(priv); | |
3816 | ||
3817 | priv->qos_data.qos_active = 0; | |
3818 | priv->qos_data.qos_cap.val = 0; | |
3819 | ||
3820 | priv->rates_mask = IWL_RATES_MASK; | |
62ea9c5b | 3821 | priv->tx_power_user_lmt = IWL_DEFAULT_TX_POWER; |
90a30a02 | 3822 | |
e6148917 SO |
3823 | if (eeprom->version < EEPROM_3945_EEPROM_VERSION) { |
3824 | IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n", | |
3825 | eeprom->version); | |
3826 | ret = -EINVAL; | |
3827 | goto err; | |
3828 | } | |
3829 | ret = iwl_init_channel_map(priv); | |
90a30a02 KA |
3830 | if (ret) { |
3831 | IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); | |
3832 | goto err; | |
3833 | } | |
3834 | ||
e6148917 SO |
3835 | /* Set up txpower settings in driver for all channels */ |
3836 | if (iwl3945_txpower_set_from_eeprom(priv)) { | |
3837 | ret = -EIO; | |
3838 | goto err_free_channel_map; | |
3839 | } | |
3840 | ||
534166de | 3841 | ret = iwlcore_init_geos(priv); |
90a30a02 KA |
3842 | if (ret) { |
3843 | IWL_ERR(priv, "initializing geos failed: %d\n", ret); | |
3844 | goto err_free_channel_map; | |
3845 | } | |
534166de SO |
3846 | iwl3945_init_hw_rates(priv, priv->ieee_rates); |
3847 | ||
2a4ddaab AK |
3848 | return 0; |
3849 | ||
3850 | err_free_channel_map: | |
3851 | iwl_free_channel_map(priv); | |
3852 | err: | |
3853 | return ret; | |
3854 | } | |
3855 | ||
3856 | static int iwl3945_setup_mac(struct iwl_priv *priv) | |
3857 | { | |
3858 | int ret; | |
3859 | struct ieee80211_hw *hw = priv->hw; | |
3860 | ||
3861 | hw->rate_control_algorithm = "iwl-3945-rs"; | |
3862 | hw->sta_data_size = sizeof(struct iwl3945_sta_priv); | |
3863 | ||
3864 | /* Tell mac80211 our characteristics */ | |
3865 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
b1c6019b | 3866 | IEEE80211_HW_NOISE_DBM | |
e312c24c JB |
3867 | IEEE80211_HW_SPECTRUM_MGMT | |
3868 | IEEE80211_HW_SUPPORTS_PS | | |
3869 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS; | |
2a4ddaab AK |
3870 | |
3871 | hw->wiphy->interface_modes = | |
3872 | BIT(NL80211_IFTYPE_STATION) | | |
3873 | BIT(NL80211_IFTYPE_ADHOC); | |
3874 | ||
3875 | hw->wiphy->custom_regulatory = true; | |
3876 | ||
37184244 LR |
3877 | /* Firmware does not support this */ |
3878 | hw->wiphy->disable_beacon_hints = true; | |
3879 | ||
1ecf9fc1 JB |
3880 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945; |
3881 | /* we create the 802.11 header and a zero-length SSID element */ | |
3882 | hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2; | |
d60cc91a | 3883 | |
2a4ddaab AK |
3884 | /* Default value; 4 EDCA QOS priorities */ |
3885 | hw->queues = 4; | |
3886 | ||
534166de SO |
3887 | if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) |
3888 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
3889 | &priv->bands[IEEE80211_BAND_2GHZ]; | |
2a4ddaab | 3890 | |
534166de SO |
3891 | if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) |
3892 | priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
3893 | &priv->bands[IEEE80211_BAND_5GHZ]; | |
90a30a02 | 3894 | |
2a4ddaab AK |
3895 | ret = ieee80211_register_hw(priv->hw); |
3896 | if (ret) { | |
3897 | IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); | |
3898 | return ret; | |
3899 | } | |
3900 | priv->mac80211_registered = 1; | |
90a30a02 | 3901 | |
2a4ddaab | 3902 | return 0; |
90a30a02 KA |
3903 | } |
3904 | ||
bb8c093b | 3905 | static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
b481de9c ZY |
3906 | { |
3907 | int err = 0; | |
4a8a4322 | 3908 | struct iwl_priv *priv; |
b481de9c | 3909 | struct ieee80211_hw *hw; |
c0f20d91 | 3910 | struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data); |
e6148917 | 3911 | struct iwl3945_eeprom *eeprom; |
0359facc | 3912 | unsigned long flags; |
b481de9c | 3913 | |
cee53ddb KA |
3914 | /*********************** |
3915 | * 1. Allocating HW data | |
3916 | * ********************/ | |
3917 | ||
b481de9c ZY |
3918 | /* mac80211 allocates memory for this device instance, including |
3919 | * space for this driver's private structure */ | |
90a30a02 | 3920 | hw = iwl_alloc_all(cfg, &iwl3945_hw_ops); |
b481de9c | 3921 | if (hw == NULL) { |
a3139c59 | 3922 | printk(KERN_ERR DRV_NAME "Can not allocate network device\n"); |
b481de9c ZY |
3923 | err = -ENOMEM; |
3924 | goto out; | |
3925 | } | |
b481de9c | 3926 | priv = hw->priv; |
90a30a02 | 3927 | SET_IEEE80211_DEV(hw, &pdev->dev); |
6440adb5 | 3928 | |
90a30a02 KA |
3929 | /* |
3930 | * Disabling hardware scan means that mac80211 will perform scans | |
3931 | * "the hard way", rather than using device's scan. | |
3932 | */ | |
df878d8f | 3933 | if (iwl3945_mod_params.disable_hw_scan) { |
e1623446 | 3934 | IWL_DEBUG_INFO(priv, "Disabling hw_scan\n"); |
40b8ec0b SO |
3935 | iwl3945_hw_ops.hw_scan = NULL; |
3936 | } | |
3937 | ||
90a30a02 | 3938 | |
e1623446 | 3939 | IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); |
90a30a02 KA |
3940 | priv->cfg = cfg; |
3941 | priv->pci_dev = pdev; | |
40cefda9 | 3942 | priv->inta_mask = CSR_INI_SET_MASK; |
cee53ddb | 3943 | |
d08853a3 | 3944 | #ifdef CONFIG_IWLWIFI_DEBUG |
b481de9c ZY |
3945 | atomic_set(&priv->restrict_refcnt, 0); |
3946 | #endif | |
20594eb0 WYG |
3947 | if (iwl_alloc_traffic_mem(priv)) |
3948 | IWL_ERR(priv, "Not enough memory to generate traffic log\n"); | |
b481de9c | 3949 | |
cee53ddb KA |
3950 | /*************************** |
3951 | * 2. Initializing PCI bus | |
3952 | * *************************/ | |
b481de9c ZY |
3953 | if (pci_enable_device(pdev)) { |
3954 | err = -ENODEV; | |
3955 | goto out_ieee80211_free_hw; | |
3956 | } | |
3957 | ||
3958 | pci_set_master(pdev); | |
3959 | ||
284901a9 | 3960 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
b481de9c | 3961 | if (!err) |
284901a9 | 3962 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
b481de9c | 3963 | if (err) { |
978785a3 | 3964 | IWL_WARN(priv, "No suitable DMA available.\n"); |
b481de9c ZY |
3965 | goto out_pci_disable_device; |
3966 | } | |
3967 | ||
3968 | pci_set_drvdata(pdev, priv); | |
3969 | err = pci_request_regions(pdev, DRV_NAME); | |
3970 | if (err) | |
3971 | goto out_pci_disable_device; | |
6440adb5 | 3972 | |
cee53ddb KA |
3973 | /*********************** |
3974 | * 3. Read REV Register | |
3975 | * ********************/ | |
b481de9c ZY |
3976 | priv->hw_base = pci_iomap(pdev, 0, 0); |
3977 | if (!priv->hw_base) { | |
3978 | err = -ENODEV; | |
3979 | goto out_pci_release_regions; | |
3980 | } | |
3981 | ||
e1623446 | 3982 | IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n", |
b481de9c | 3983 | (unsigned long long) pci_resource_len(pdev, 0)); |
e1623446 | 3984 | IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base); |
b481de9c | 3985 | |
cee53ddb KA |
3986 | /* We disable the RETRY_TIMEOUT register (0x41) to keep |
3987 | * PCI Tx retries from interfering with C3 CPU state */ | |
3988 | pci_write_config_byte(pdev, 0x41, 0x00); | |
b481de9c | 3989 | |
a8b50a0a MA |
3990 | /* this spin lock will be used in apm_ops.init and EEPROM access |
3991 | * we should init now | |
3992 | */ | |
3993 | spin_lock_init(&priv->reg_lock); | |
3994 | ||
90a30a02 KA |
3995 | /* amp init */ |
3996 | err = priv->cfg->ops->lib->apm_ops.init(priv); | |
cee53ddb | 3997 | if (err < 0) { |
d5df2a16 | 3998 | IWL_DEBUG_INFO(priv, "Failed to init the card\n"); |
90a30a02 | 3999 | goto out_iounmap; |
cee53ddb | 4000 | } |
b481de9c | 4001 | |
cee53ddb KA |
4002 | /*********************** |
4003 | * 4. Read EEPROM | |
4004 | * ********************/ | |
90a30a02 | 4005 | |
cee53ddb | 4006 | /* Read the EEPROM */ |
e6148917 | 4007 | err = iwl_eeprom_init(priv); |
cee53ddb | 4008 | if (err) { |
15b1687c | 4009 | IWL_ERR(priv, "Unable to init EEPROM\n"); |
c8f16138 | 4010 | goto out_iounmap; |
cee53ddb KA |
4011 | } |
4012 | /* MAC Address location in EEPROM same for 3945/4965 */ | |
e6148917 SO |
4013 | eeprom = (struct iwl3945_eeprom *)priv->eeprom; |
4014 | memcpy(priv->mac_addr, eeprom->mac_address, ETH_ALEN); | |
e1623446 | 4015 | IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->mac_addr); |
cee53ddb | 4016 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); |
b481de9c | 4017 | |
cee53ddb KA |
4018 | /*********************** |
4019 | * 5. Setup HW Constants | |
4020 | * ********************/ | |
b481de9c | 4021 | /* Device-specific setup */ |
3832ec9d | 4022 | if (iwl3945_hw_set_hw_params(priv)) { |
15b1687c | 4023 | IWL_ERR(priv, "failed to set hw settings\n"); |
c8f16138 | 4024 | goto out_eeprom_free; |
b481de9c ZY |
4025 | } |
4026 | ||
cee53ddb KA |
4027 | /*********************** |
4028 | * 6. Setup priv | |
4029 | * ********************/ | |
cee53ddb | 4030 | |
90a30a02 | 4031 | err = iwl3945_init_drv(priv); |
b481de9c | 4032 | if (err) { |
90a30a02 | 4033 | IWL_ERR(priv, "initializing driver failed\n"); |
c8f16138 | 4034 | goto out_unset_hw_params; |
b481de9c ZY |
4035 | } |
4036 | ||
978785a3 TW |
4037 | IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s\n", |
4038 | priv->cfg->name); | |
cee53ddb | 4039 | |
cee53ddb | 4040 | /*********************** |
09f9bf79 | 4041 | * 7. Setup Services |
cee53ddb KA |
4042 | * ********************/ |
4043 | ||
4044 | spin_lock_irqsave(&priv->lock, flags); | |
ed3b932e | 4045 | iwl_disable_interrupts(priv); |
cee53ddb KA |
4046 | spin_unlock_irqrestore(&priv->lock, flags); |
4047 | ||
2663516d HS |
4048 | pci_enable_msi(priv->pci_dev); |
4049 | ||
ef850d7c MA |
4050 | err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr, |
4051 | IRQF_SHARED, DRV_NAME, priv); | |
2663516d HS |
4052 | if (err) { |
4053 | IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq); | |
4054 | goto out_disable_msi; | |
4055 | } | |
4056 | ||
cee53ddb | 4057 | err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
849e0dce | 4058 | if (err) { |
15b1687c | 4059 | IWL_ERR(priv, "failed to create sysfs device attributes\n"); |
90a30a02 | 4060 | goto out_release_irq; |
849e0dce | 4061 | } |
849e0dce | 4062 | |
8ccde88a SO |
4063 | iwl_set_rxon_channel(priv, |
4064 | &priv->bands[IEEE80211_BAND_2GHZ].channels[5]); | |
cee53ddb KA |
4065 | iwl3945_setup_deferred_work(priv); |
4066 | iwl3945_setup_rx_handlers(priv); | |
008a9e3e | 4067 | iwl_power_initialize(priv); |
cee53ddb | 4068 | |
cee53ddb | 4069 | /********************************* |
09f9bf79 | 4070 | * 8. Setup and Register mac80211 |
cee53ddb KA |
4071 | * *******************************/ |
4072 | ||
2a4ddaab | 4073 | iwl_enable_interrupts(priv); |
b481de9c | 4074 | |
2a4ddaab AK |
4075 | err = iwl3945_setup_mac(priv); |
4076 | if (err) | |
4077 | goto out_remove_sysfs; | |
cee53ddb | 4078 | |
a75fbe8d AK |
4079 | err = iwl_dbgfs_register(priv, DRV_NAME); |
4080 | if (err) | |
4081 | IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); | |
4082 | ||
2663516d HS |
4083 | /* Start monitoring the killswitch */ |
4084 | queue_delayed_work(priv->workqueue, &priv->rfkill_poll, | |
4085 | 2 * HZ); | |
4086 | ||
b481de9c ZY |
4087 | return 0; |
4088 | ||
cee53ddb | 4089 | out_remove_sysfs: |
c8f16138 RC |
4090 | destroy_workqueue(priv->workqueue); |
4091 | priv->workqueue = NULL; | |
cee53ddb | 4092 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c | 4093 | out_release_irq: |
2663516d | 4094 | free_irq(priv->pci_dev->irq, priv); |
2663516d HS |
4095 | out_disable_msi: |
4096 | pci_disable_msi(priv->pci_dev); | |
c8f16138 RC |
4097 | iwlcore_free_geos(priv); |
4098 | iwl_free_channel_map(priv); | |
4099 | out_unset_hw_params: | |
4100 | iwl3945_unset_hw_params(priv); | |
4101 | out_eeprom_free: | |
4102 | iwl_eeprom_free(priv); | |
b481de9c ZY |
4103 | out_iounmap: |
4104 | pci_iounmap(pdev, priv->hw_base); | |
4105 | out_pci_release_regions: | |
4106 | pci_release_regions(pdev); | |
4107 | out_pci_disable_device: | |
b481de9c | 4108 | pci_set_drvdata(pdev, NULL); |
623d563e | 4109 | pci_disable_device(pdev); |
b481de9c | 4110 | out_ieee80211_free_hw: |
20594eb0 | 4111 | iwl_free_traffic_mem(priv); |
d7c76f4c | 4112 | ieee80211_free_hw(priv->hw); |
b481de9c ZY |
4113 | out: |
4114 | return err; | |
4115 | } | |
4116 | ||
c83dbf68 | 4117 | static void __devexit iwl3945_pci_remove(struct pci_dev *pdev) |
b481de9c | 4118 | { |
4a8a4322 | 4119 | struct iwl_priv *priv = pci_get_drvdata(pdev); |
0359facc | 4120 | unsigned long flags; |
b481de9c ZY |
4121 | |
4122 | if (!priv) | |
4123 | return; | |
4124 | ||
e1623446 | 4125 | IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); |
b481de9c | 4126 | |
a75fbe8d AK |
4127 | iwl_dbgfs_unregister(priv); |
4128 | ||
b481de9c | 4129 | set_bit(STATUS_EXIT_PENDING, &priv->status); |
b24d22b1 | 4130 | |
d552bfb6 KA |
4131 | if (priv->mac80211_registered) { |
4132 | ieee80211_unregister_hw(priv->hw); | |
4133 | priv->mac80211_registered = 0; | |
4134 | } else { | |
4135 | iwl3945_down(priv); | |
4136 | } | |
b481de9c | 4137 | |
c166b25a BC |
4138 | /* |
4139 | * Make sure device is reset to low power before unloading driver. | |
4140 | * This may be redundant with iwl_down(), but there are paths to | |
4141 | * run iwl_down() without calling apm_ops.stop(), and there are | |
4142 | * paths to avoid running iwl_down() at all before leaving driver. | |
4143 | * This (inexpensive) call *makes sure* device is reset. | |
4144 | */ | |
4145 | priv->cfg->ops->lib->apm_ops.stop(priv); | |
4146 | ||
0359facc MA |
4147 | /* make sure we flush any pending irq or |
4148 | * tasklet for the driver | |
4149 | */ | |
4150 | spin_lock_irqsave(&priv->lock, flags); | |
ed3b932e | 4151 | iwl_disable_interrupts(priv); |
0359facc MA |
4152 | spin_unlock_irqrestore(&priv->lock, flags); |
4153 | ||
4154 | iwl_synchronize_irq(priv); | |
4155 | ||
bb8c093b | 4156 | sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group); |
b481de9c | 4157 | |
71d449b5 | 4158 | cancel_delayed_work_sync(&priv->rfkill_poll); |
2663516d | 4159 | |
bb8c093b | 4160 | iwl3945_dealloc_ucode_pci(priv); |
b481de9c ZY |
4161 | |
4162 | if (priv->rxq.bd) | |
df833b1d | 4163 | iwl3945_rx_queue_free(priv, &priv->rxq); |
bb8c093b | 4164 | iwl3945_hw_txq_ctx_free(priv); |
b481de9c | 4165 | |
3832ec9d | 4166 | iwl3945_unset_hw_params(priv); |
c587de0b | 4167 | iwl_clear_stations_table(priv); |
b481de9c | 4168 | |
6ef89d0a MA |
4169 | /*netif_stop_queue(dev); */ |
4170 | flush_workqueue(priv->workqueue); | |
4171 | ||
bb8c093b | 4172 | /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes |
b481de9c ZY |
4173 | * priv->workqueue... so we can't take down the workqueue |
4174 | * until now... */ | |
4175 | destroy_workqueue(priv->workqueue); | |
4176 | priv->workqueue = NULL; | |
20594eb0 | 4177 | iwl_free_traffic_mem(priv); |
b481de9c | 4178 | |
2663516d HS |
4179 | free_irq(pdev->irq, priv); |
4180 | pci_disable_msi(pdev); | |
4181 | ||
b481de9c ZY |
4182 | pci_iounmap(pdev, priv->hw_base); |
4183 | pci_release_regions(pdev); | |
4184 | pci_disable_device(pdev); | |
4185 | pci_set_drvdata(pdev, NULL); | |
4186 | ||
e6148917 | 4187 | iwl_free_channel_map(priv); |
534166de | 4188 | iwlcore_free_geos(priv); |
805cee5b | 4189 | kfree(priv->scan); |
b481de9c ZY |
4190 | if (priv->ibss_beacon) |
4191 | dev_kfree_skb(priv->ibss_beacon); | |
4192 | ||
4193 | ieee80211_free_hw(priv->hw); | |
4194 | } | |
4195 | ||
b481de9c ZY |
4196 | |
4197 | /***************************************************************************** | |
4198 | * | |
4199 | * driver and module entry point | |
4200 | * | |
4201 | *****************************************************************************/ | |
4202 | ||
bb8c093b | 4203 | static struct pci_driver iwl3945_driver = { |
b481de9c | 4204 | .name = DRV_NAME, |
bb8c093b CH |
4205 | .id_table = iwl3945_hw_card_ids, |
4206 | .probe = iwl3945_pci_probe, | |
4207 | .remove = __devexit_p(iwl3945_pci_remove), | |
b481de9c | 4208 | #ifdef CONFIG_PM |
6da3a13e WYG |
4209 | .suspend = iwl_pci_suspend, |
4210 | .resume = iwl_pci_resume, | |
b481de9c ZY |
4211 | #endif |
4212 | }; | |
4213 | ||
bb8c093b | 4214 | static int __init iwl3945_init(void) |
b481de9c ZY |
4215 | { |
4216 | ||
4217 | int ret; | |
4218 | printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
4219 | printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n"); | |
897e1cf2 RC |
4220 | |
4221 | ret = iwl3945_rate_control_register(); | |
4222 | if (ret) { | |
a3139c59 SO |
4223 | printk(KERN_ERR DRV_NAME |
4224 | "Unable to register rate control algorithm: %d\n", ret); | |
897e1cf2 RC |
4225 | return ret; |
4226 | } | |
4227 | ||
bb8c093b | 4228 | ret = pci_register_driver(&iwl3945_driver); |
b481de9c | 4229 | if (ret) { |
a3139c59 | 4230 | printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n"); |
897e1cf2 | 4231 | goto error_register; |
b481de9c | 4232 | } |
b481de9c ZY |
4233 | |
4234 | return ret; | |
897e1cf2 | 4235 | |
897e1cf2 RC |
4236 | error_register: |
4237 | iwl3945_rate_control_unregister(); | |
4238 | return ret; | |
b481de9c ZY |
4239 | } |
4240 | ||
bb8c093b | 4241 | static void __exit iwl3945_exit(void) |
b481de9c | 4242 | { |
bb8c093b | 4243 | pci_unregister_driver(&iwl3945_driver); |
897e1cf2 | 4244 | iwl3945_rate_control_unregister(); |
b481de9c ZY |
4245 | } |
4246 | ||
a0987a8d | 4247 | MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX)); |
25cb6cad | 4248 | |
4e30cb69 | 4249 | module_param_named(antenna, iwl3945_mod_params.antenna, int, S_IRUGO); |
b481de9c | 4250 | MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); |
4e30cb69 | 4251 | module_param_named(swcrypto, iwl3945_mod_params.sw_crypto, int, S_IRUGO); |
9c74d9fb SO |
4252 | MODULE_PARM_DESC(swcrypto, |
4253 | "using software crypto (default 1 [software])\n"); | |
a562a9dd | 4254 | #ifdef CONFIG_IWLWIFI_DEBUG |
4e30cb69 | 4255 | module_param_named(debug, iwl_debug_level, uint, S_IRUGO | S_IWUSR); |
b481de9c | 4256 | MODULE_PARM_DESC(debug, "debug output mask"); |
a562a9dd | 4257 | #endif |
4e30cb69 WYG |
4258 | module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, |
4259 | int, S_IRUGO); | |
b481de9c | 4260 | MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)"); |
4e30cb69 | 4261 | module_param_named(fw_restart3945, iwl3945_mod_params.restart_fw, int, S_IRUGO); |
af48d048 SO |
4262 | MODULE_PARM_DESC(fw_restart3945, "restart firmware in case of error"); |
4263 | ||
bb8c093b CH |
4264 | module_exit(iwl3945_exit); |
4265 | module_init(iwl3945_init); |