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4bc85c13 WYG |
1 | /****************************************************************************** |
2 | * | |
be663ab6 | 3 | * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. |
4bc85c13 WYG |
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: | |
25 | * Intel Linux Wireless <ilw@linux.intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | * | |
28 | *****************************************************************************/ | |
29 | ||
30 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
31 | ||
32 | #include <linux/kernel.h> | |
33 | #include <linux/module.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/pci.h> | |
36 | #include <linux/pci-aspm.h> | |
37 | #include <linux/slab.h> | |
38 | #include <linux/dma-mapping.h> | |
39 | #include <linux/delay.h> | |
40 | #include <linux/sched.h> | |
41 | #include <linux/skbuff.h> | |
42 | #include <linux/netdevice.h> | |
4bc85c13 WYG |
43 | #include <linux/firmware.h> |
44 | #include <linux/etherdevice.h> | |
45 | #include <linux/if_arp.h> | |
46 | ||
47 | #include <net/ieee80211_radiotap.h> | |
48 | #include <net/mac80211.h> | |
49 | ||
50 | #include <asm/div64.h> | |
51 | ||
52 | #define DRV_NAME "iwl3945" | |
53 | ||
d4459a99 | 54 | #include "commands.h" |
98613be0 | 55 | #include "common.h" |
e94a4099 | 56 | #include "3945.h" |
4bc85c13 | 57 | #include "iwl-spectrum.h" |
4bc85c13 WYG |
58 | |
59 | /* | |
60 | * module name, copyright, version, etc. | |
61 | */ | |
62 | ||
63 | #define DRV_DESCRIPTION \ | |
64 | "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux" | |
65 | ||
d3175167 | 66 | #ifdef CONFIG_IWLEGACY_DEBUG |
4bc85c13 WYG |
67 | #define VD "d" |
68 | #else | |
69 | #define VD | |
70 | #endif | |
71 | ||
72 | /* | |
73 | * add "s" to indicate spectrum measurement included. | |
74 | * we add it here to be consistent with previous releases in which | |
75 | * this was configurable. | |
76 | */ | |
77 | #define DRV_VERSION IWLWIFI_VERSION VD "s" | |
be663ab6 | 78 | #define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation" |
4bc85c13 WYG |
79 | #define DRV_AUTHOR "<ilw@linux.intel.com>" |
80 | ||
81 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
82 | MODULE_VERSION(DRV_VERSION); | |
83 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); | |
84 | MODULE_LICENSE("GPL"); | |
85 | ||
86 | /* module parameters */ | |
e2ebc833 | 87 | struct il_mod_params il3945_mod_params = { |
4bc85c13 WYG |
88 | .sw_crypto = 1, |
89 | .restart_fw = 1, | |
0263aa45 | 90 | .disable_hw_scan = 1, |
4bc85c13 WYG |
91 | /* the rest are 0 by default */ |
92 | }; | |
93 | ||
94 | /** | |
e2ebc833 | 95 | * il3945_get_antenna_flags - Get antenna flags for RXON command |
46bc8d4b | 96 | * @il: eeprom and antenna fields are used to determine antenna flags |
4bc85c13 | 97 | * |
46bc8d4b | 98 | * il->eeprom39 is used to determine if antenna AUX/MAIN are reversed |
e2ebc833 | 99 | * il3945_mod_params.antenna specifies the antenna diversity mode: |
4bc85c13 | 100 | * |
e2ebc833 SG |
101 | * IL_ANTENNA_DIVERSITY - NIC selects best antenna by itself |
102 | * IL_ANTENNA_MAIN - Force MAIN antenna | |
103 | * IL_ANTENNA_AUX - Force AUX antenna | |
4bc85c13 | 104 | */ |
e7392364 SG |
105 | __le32 |
106 | il3945_get_antenna_flags(const struct il_priv *il) | |
4bc85c13 | 107 | { |
46bc8d4b | 108 | struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; |
4bc85c13 | 109 | |
e2ebc833 SG |
110 | switch (il3945_mod_params.antenna) { |
111 | case IL_ANTENNA_DIVERSITY: | |
4bc85c13 WYG |
112 | return 0; |
113 | ||
e2ebc833 | 114 | case IL_ANTENNA_MAIN: |
4bc85c13 WYG |
115 | if (eeprom->antenna_switch_type) |
116 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; | |
117 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; | |
118 | ||
e2ebc833 | 119 | case IL_ANTENNA_AUX: |
4bc85c13 WYG |
120 | if (eeprom->antenna_switch_type) |
121 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK; | |
122 | return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK; | |
123 | } | |
124 | ||
125 | /* bad antenna selector value */ | |
9406f797 | 126 | IL_ERR("Bad antenna selector value (0x%x)\n", |
e7392364 | 127 | il3945_mod_params.antenna); |
4bc85c13 WYG |
128 | |
129 | return 0; /* "diversity" is default if error */ | |
130 | } | |
131 | ||
e7392364 SG |
132 | static int |
133 | il3945_set_ccmp_dynamic_key_info(struct il_priv *il, | |
134 | struct ieee80211_key_conf *keyconf, u8 sta_id) | |
4bc85c13 WYG |
135 | { |
136 | unsigned long flags; | |
137 | __le16 key_flags = 0; | |
138 | int ret; | |
139 | ||
140 | key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); | |
141 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); | |
142 | ||
b16db50a | 143 | if (sta_id == il->hw_params.bcast_id) |
4bc85c13 WYG |
144 | key_flags |= STA_KEY_MULTICAST_MSK; |
145 | ||
146 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
147 | keyconf->hw_key_idx = keyconf->keyidx; | |
148 | key_flags &= ~STA_KEY_FLG_INVALID; | |
149 | ||
46bc8d4b SG |
150 | spin_lock_irqsave(&il->sta_lock, flags); |
151 | il->stations[sta_id].keyinfo.cipher = keyconf->cipher; | |
152 | il->stations[sta_id].keyinfo.keylen = keyconf->keylen; | |
e7392364 | 153 | memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, keyconf->keylen); |
4bc85c13 | 154 | |
e7392364 | 155 | memcpy(il->stations[sta_id].sta.key.key, keyconf->key, keyconf->keylen); |
4bc85c13 | 156 | |
e7392364 SG |
157 | if ((il->stations[sta_id].sta.key. |
158 | key_flags & STA_KEY_FLG_ENCRYPT_MSK) == STA_KEY_FLG_NO_ENC) | |
46bc8d4b | 159 | il->stations[sta_id].sta.key.key_offset = |
e7392364 | 160 | il_get_free_ucode_key_idx(il); |
4bc85c13 | 161 | /* else, we are overriding an existing key => no need to allocated room |
e7392364 | 162 | * in uCode. */ |
4bc85c13 | 163 | |
46bc8d4b | 164 | WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, |
e7392364 | 165 | "no space for a new key"); |
4bc85c13 | 166 | |
46bc8d4b SG |
167 | il->stations[sta_id].sta.key.key_flags = key_flags; |
168 | il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
169 | il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
4bc85c13 | 170 | |
58de00a4 | 171 | D_INFO("hwcrypto: modify ucode station key info\n"); |
4bc85c13 | 172 | |
e7392364 | 173 | ret = il_send_add_sta(il, &il->stations[sta_id].sta, CMD_ASYNC); |
4bc85c13 | 174 | |
46bc8d4b | 175 | spin_unlock_irqrestore(&il->sta_lock, flags); |
4bc85c13 WYG |
176 | |
177 | return ret; | |
178 | } | |
179 | ||
e7392364 SG |
180 | static int |
181 | il3945_set_tkip_dynamic_key_info(struct il_priv *il, | |
182 | struct ieee80211_key_conf *keyconf, u8 sta_id) | |
4bc85c13 WYG |
183 | { |
184 | return -EOPNOTSUPP; | |
185 | } | |
186 | ||
e7392364 SG |
187 | static int |
188 | il3945_set_wep_dynamic_key_info(struct il_priv *il, | |
189 | struct ieee80211_key_conf *keyconf, u8 sta_id) | |
4bc85c13 WYG |
190 | { |
191 | return -EOPNOTSUPP; | |
192 | } | |
193 | ||
e7392364 SG |
194 | static int |
195 | il3945_clear_sta_key_info(struct il_priv *il, u8 sta_id) | |
4bc85c13 WYG |
196 | { |
197 | unsigned long flags; | |
e2ebc833 | 198 | struct il_addsta_cmd sta_cmd; |
4bc85c13 | 199 | |
46bc8d4b SG |
200 | spin_lock_irqsave(&il->sta_lock, flags); |
201 | memset(&il->stations[sta_id].keyinfo, 0, sizeof(struct il_hw_key)); | |
e7392364 | 202 | memset(&il->stations[sta_id].sta.key, 0, sizeof(struct il4965_keyinfo)); |
46bc8d4b SG |
203 | il->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC; |
204 | il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
205 | il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
e7392364 SG |
206 | memcpy(&sta_cmd, &il->stations[sta_id].sta, |
207 | sizeof(struct il_addsta_cmd)); | |
46bc8d4b | 208 | spin_unlock_irqrestore(&il->sta_lock, flags); |
4bc85c13 | 209 | |
58de00a4 | 210 | D_INFO("hwcrypto: clear ucode station key info\n"); |
46bc8d4b | 211 | return il_send_add_sta(il, &sta_cmd, CMD_SYNC); |
4bc85c13 WYG |
212 | } |
213 | ||
e7392364 SG |
214 | static int |
215 | il3945_set_dynamic_key(struct il_priv *il, struct ieee80211_key_conf *keyconf, | |
216 | u8 sta_id) | |
4bc85c13 WYG |
217 | { |
218 | int ret = 0; | |
219 | ||
220 | keyconf->hw_key_idx = HW_KEY_DYNAMIC; | |
221 | ||
222 | switch (keyconf->cipher) { | |
223 | case WLAN_CIPHER_SUITE_CCMP: | |
46bc8d4b | 224 | ret = il3945_set_ccmp_dynamic_key_info(il, keyconf, sta_id); |
4bc85c13 WYG |
225 | break; |
226 | case WLAN_CIPHER_SUITE_TKIP: | |
46bc8d4b | 227 | ret = il3945_set_tkip_dynamic_key_info(il, keyconf, sta_id); |
4bc85c13 WYG |
228 | break; |
229 | case WLAN_CIPHER_SUITE_WEP40: | |
230 | case WLAN_CIPHER_SUITE_WEP104: | |
46bc8d4b | 231 | ret = il3945_set_wep_dynamic_key_info(il, keyconf, sta_id); |
4bc85c13 WYG |
232 | break; |
233 | default: | |
e7392364 | 234 | IL_ERR("Unknown alg: %s alg=%x\n", __func__, keyconf->cipher); |
4bc85c13 WYG |
235 | ret = -EINVAL; |
236 | } | |
237 | ||
58de00a4 | 238 | D_WEP("Set dynamic key: alg=%x len=%d idx=%d sta=%d ret=%d\n", |
e7392364 | 239 | keyconf->cipher, keyconf->keylen, keyconf->keyidx, sta_id, ret); |
4bc85c13 WYG |
240 | |
241 | return ret; | |
242 | } | |
243 | ||
e7392364 SG |
244 | static int |
245 | il3945_remove_static_key(struct il_priv *il) | |
4bc85c13 WYG |
246 | { |
247 | int ret = -EOPNOTSUPP; | |
248 | ||
249 | return ret; | |
250 | } | |
251 | ||
e7392364 SG |
252 | static int |
253 | il3945_set_static_key(struct il_priv *il, struct ieee80211_key_conf *key) | |
4bc85c13 WYG |
254 | { |
255 | if (key->cipher == WLAN_CIPHER_SUITE_WEP40 || | |
256 | key->cipher == WLAN_CIPHER_SUITE_WEP104) | |
257 | return -EOPNOTSUPP; | |
258 | ||
9406f797 | 259 | IL_ERR("Static key invalid: cipher %x\n", key->cipher); |
4bc85c13 WYG |
260 | return -EINVAL; |
261 | } | |
262 | ||
e7392364 SG |
263 | static void |
264 | il3945_clear_free_frames(struct il_priv *il) | |
4bc85c13 WYG |
265 | { |
266 | struct list_head *element; | |
267 | ||
e7392364 | 268 | D_INFO("%d frames on pre-allocated heap on clear.\n", il->frames_count); |
4bc85c13 | 269 | |
46bc8d4b SG |
270 | while (!list_empty(&il->free_frames)) { |
271 | element = il->free_frames.next; | |
4bc85c13 | 272 | list_del(element); |
e2ebc833 | 273 | kfree(list_entry(element, struct il3945_frame, list)); |
46bc8d4b | 274 | il->frames_count--; |
4bc85c13 WYG |
275 | } |
276 | ||
46bc8d4b | 277 | if (il->frames_count) { |
9406f797 | 278 | IL_WARN("%d frames still in use. Did we lose one?\n", |
e7392364 | 279 | il->frames_count); |
46bc8d4b | 280 | il->frames_count = 0; |
4bc85c13 WYG |
281 | } |
282 | } | |
283 | ||
e7392364 SG |
284 | static struct il3945_frame * |
285 | il3945_get_free_frame(struct il_priv *il) | |
4bc85c13 | 286 | { |
e2ebc833 | 287 | struct il3945_frame *frame; |
4bc85c13 | 288 | struct list_head *element; |
46bc8d4b | 289 | if (list_empty(&il->free_frames)) { |
4bc85c13 WYG |
290 | frame = kzalloc(sizeof(*frame), GFP_KERNEL); |
291 | if (!frame) { | |
9406f797 | 292 | IL_ERR("Could not allocate frame!\n"); |
4bc85c13 WYG |
293 | return NULL; |
294 | } | |
295 | ||
46bc8d4b | 296 | il->frames_count++; |
4bc85c13 WYG |
297 | return frame; |
298 | } | |
299 | ||
46bc8d4b | 300 | element = il->free_frames.next; |
4bc85c13 | 301 | list_del(element); |
e2ebc833 | 302 | return list_entry(element, struct il3945_frame, list); |
4bc85c13 WYG |
303 | } |
304 | ||
e7392364 SG |
305 | static void |
306 | il3945_free_frame(struct il_priv *il, struct il3945_frame *frame) | |
4bc85c13 WYG |
307 | { |
308 | memset(frame, 0, sizeof(*frame)); | |
46bc8d4b | 309 | list_add(&frame->list, &il->free_frames); |
4bc85c13 WYG |
310 | } |
311 | ||
e7392364 SG |
312 | unsigned int |
313 | il3945_fill_beacon_frame(struct il_priv *il, struct ieee80211_hdr *hdr, | |
314 | int left) | |
4bc85c13 WYG |
315 | { |
316 | ||
7c2cde2e | 317 | if (!il_is_associated(il) || !il->beacon_skb) |
4bc85c13 WYG |
318 | return 0; |
319 | ||
46bc8d4b | 320 | if (il->beacon_skb->len > left) |
4bc85c13 WYG |
321 | return 0; |
322 | ||
46bc8d4b | 323 | memcpy(hdr, il->beacon_skb->data, il->beacon_skb->len); |
4bc85c13 | 324 | |
46bc8d4b | 325 | return il->beacon_skb->len; |
4bc85c13 WYG |
326 | } |
327 | ||
e7392364 SG |
328 | static int |
329 | il3945_send_beacon_cmd(struct il_priv *il) | |
4bc85c13 | 330 | { |
e2ebc833 | 331 | struct il3945_frame *frame; |
4bc85c13 WYG |
332 | unsigned int frame_size; |
333 | int rc; | |
334 | u8 rate; | |
335 | ||
46bc8d4b | 336 | frame = il3945_get_free_frame(il); |
4bc85c13 WYG |
337 | |
338 | if (!frame) { | |
9406f797 | 339 | IL_ERR("Could not obtain free frame buffer for beacon " |
e7392364 | 340 | "command.\n"); |
4bc85c13 WYG |
341 | return -ENOMEM; |
342 | } | |
343 | ||
83007196 | 344 | rate = il_get_lowest_plcp(il); |
4bc85c13 | 345 | |
46bc8d4b | 346 | frame_size = il3945_hw_get_beacon_cmd(il, frame, rate); |
4bc85c13 | 347 | |
e7392364 | 348 | rc = il_send_cmd_pdu(il, C_TX_BEACON, frame_size, &frame->u.cmd[0]); |
4bc85c13 | 349 | |
46bc8d4b | 350 | il3945_free_frame(il, frame); |
4bc85c13 WYG |
351 | |
352 | return rc; | |
353 | } | |
354 | ||
e7392364 SG |
355 | static void |
356 | il3945_unset_hw_params(struct il_priv *il) | |
4bc85c13 | 357 | { |
46bc8d4b SG |
358 | if (il->_3945.shared_virt) |
359 | dma_free_coherent(&il->pci_dev->dev, | |
e2ebc833 | 360 | sizeof(struct il3945_shared), |
e7392364 | 361 | il->_3945.shared_virt, il->_3945.shared_phys); |
4bc85c13 WYG |
362 | } |
363 | ||
e7392364 SG |
364 | static void |
365 | il3945_build_tx_cmd_hwcrypto(struct il_priv *il, struct ieee80211_tx_info *info, | |
366 | struct il_device_cmd *cmd, | |
367 | struct sk_buff *skb_frag, int sta_id) | |
4bc85c13 | 368 | { |
e2ebc833 | 369 | struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload; |
46bc8d4b | 370 | struct il_hw_key *keyinfo = &il->stations[sta_id].keyinfo; |
4bc85c13 WYG |
371 | |
372 | tx_cmd->sec_ctl = 0; | |
373 | ||
374 | switch (keyinfo->cipher) { | |
375 | case WLAN_CIPHER_SUITE_CCMP: | |
376 | tx_cmd->sec_ctl = TX_CMD_SEC_CCM; | |
377 | memcpy(tx_cmd->key, keyinfo->key, keyinfo->keylen); | |
58de00a4 | 378 | D_TX("tx_cmd with AES hwcrypto\n"); |
4bc85c13 WYG |
379 | break; |
380 | ||
381 | case WLAN_CIPHER_SUITE_TKIP: | |
382 | break; | |
383 | ||
384 | case WLAN_CIPHER_SUITE_WEP104: | |
385 | tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128; | |
386 | /* fall through */ | |
387 | case WLAN_CIPHER_SUITE_WEP40: | |
e7392364 SG |
388 | tx_cmd->sec_ctl |= |
389 | TX_CMD_SEC_WEP | (info->control.hw_key-> | |
390 | hw_key_idx & TX_CMD_SEC_MSK) << | |
391 | TX_CMD_SEC_SHIFT; | |
4bc85c13 WYG |
392 | |
393 | memcpy(&tx_cmd->key[3], keyinfo->key, keyinfo->keylen); | |
394 | ||
e7392364 SG |
395 | D_TX("Configuring packet for WEP encryption " "with key %d\n", |
396 | info->control.hw_key->hw_key_idx); | |
4bc85c13 WYG |
397 | break; |
398 | ||
399 | default: | |
9406f797 | 400 | IL_ERR("Unknown encode cipher %x\n", keyinfo->cipher); |
4bc85c13 WYG |
401 | break; |
402 | } | |
403 | } | |
404 | ||
405 | /* | |
4d69c752 | 406 | * handle build C_TX command notification. |
4bc85c13 | 407 | */ |
e7392364 SG |
408 | static void |
409 | il3945_build_tx_cmd_basic(struct il_priv *il, struct il_device_cmd *cmd, | |
410 | struct ieee80211_tx_info *info, | |
411 | struct ieee80211_hdr *hdr, u8 std_id) | |
4bc85c13 | 412 | { |
e2ebc833 | 413 | struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload; |
4bc85c13 WYG |
414 | __le32 tx_flags = tx_cmd->tx_flags; |
415 | __le16 fc = hdr->frame_control; | |
416 | ||
417 | tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; | |
418 | if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { | |
419 | tx_flags |= TX_CMD_FLG_ACK_MSK; | |
420 | if (ieee80211_is_mgmt(fc)) | |
421 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; | |
422 | if (ieee80211_is_probe_resp(fc) && | |
423 | !(le16_to_cpu(hdr->seq_ctrl) & 0xf)) | |
424 | tx_flags |= TX_CMD_FLG_TSF_MSK; | |
425 | } else { | |
426 | tx_flags &= (~TX_CMD_FLG_ACK_MSK); | |
427 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; | |
428 | } | |
429 | ||
430 | tx_cmd->sta_id = std_id; | |
431 | if (ieee80211_has_morefrags(fc)) | |
432 | tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK; | |
433 | ||
434 | if (ieee80211_is_data_qos(fc)) { | |
435 | u8 *qc = ieee80211_get_qos_ctl(hdr); | |
436 | tx_cmd->tid_tspec = qc[0] & 0xf; | |
437 | tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK; | |
438 | } else { | |
439 | tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK; | |
440 | } | |
441 | ||
46bc8d4b | 442 | il_tx_cmd_protection(il, info, fc, &tx_flags); |
4bc85c13 WYG |
443 | |
444 | tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK); | |
445 | if (ieee80211_is_mgmt(fc)) { | |
446 | if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) | |
447 | tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3); | |
448 | else | |
449 | tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2); | |
450 | } else { | |
451 | tx_cmd->timeout.pm_frame_timeout = 0; | |
452 | } | |
453 | ||
454 | tx_cmd->driver_txop = 0; | |
455 | tx_cmd->tx_flags = tx_flags; | |
456 | tx_cmd->next_frame_len = 0; | |
457 | } | |
458 | ||
459 | /* | |
4d69c752 | 460 | * start C_TX command process |
4bc85c13 | 461 | */ |
e7392364 SG |
462 | static int |
463 | il3945_tx_skb(struct il_priv *il, struct sk_buff *skb) | |
4bc85c13 WYG |
464 | { |
465 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; | |
466 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
e2ebc833 SG |
467 | struct il3945_tx_cmd *tx_cmd; |
468 | struct il_tx_queue *txq = NULL; | |
469 | struct il_queue *q = NULL; | |
470 | struct il_device_cmd *out_cmd; | |
471 | struct il_cmd_meta *out_meta; | |
4bc85c13 WYG |
472 | dma_addr_t phys_addr; |
473 | dma_addr_t txcmd_phys; | |
474 | int txq_id = skb_get_queue_mapping(skb); | |
475 | u16 len, idx, hdr_len; | |
476 | u8 id; | |
477 | u8 unicast; | |
478 | u8 sta_id; | |
479 | u8 tid = 0; | |
480 | __le16 fc; | |
481 | u8 wait_write_ptr = 0; | |
482 | unsigned long flags; | |
483 | ||
46bc8d4b SG |
484 | spin_lock_irqsave(&il->lock, flags); |
485 | if (il_is_rfkill(il)) { | |
58de00a4 | 486 | D_DROP("Dropping - RF KILL\n"); |
4bc85c13 WYG |
487 | goto drop_unlock; |
488 | } | |
489 | ||
e7392364 SG |
490 | if ((ieee80211_get_tx_rate(il->hw, info)->hw_value & 0xFF) == |
491 | IL_INVALID_RATE) { | |
9406f797 | 492 | IL_ERR("ERROR: No TX rate available.\n"); |
4bc85c13 WYG |
493 | goto drop_unlock; |
494 | } | |
495 | ||
496 | unicast = !is_multicast_ether_addr(hdr->addr1); | |
497 | id = 0; | |
498 | ||
499 | fc = hdr->frame_control; | |
500 | ||
d3175167 | 501 | #ifdef CONFIG_IWLEGACY_DEBUG |
4bc85c13 | 502 | if (ieee80211_is_auth(fc)) |
58de00a4 | 503 | D_TX("Sending AUTH frame\n"); |
4bc85c13 | 504 | else if (ieee80211_is_assoc_req(fc)) |
58de00a4 | 505 | D_TX("Sending ASSOC frame\n"); |
4bc85c13 | 506 | else if (ieee80211_is_reassoc_req(fc)) |
58de00a4 | 507 | D_TX("Sending REASSOC frame\n"); |
4bc85c13 WYG |
508 | #endif |
509 | ||
46bc8d4b | 510 | spin_unlock_irqrestore(&il->lock, flags); |
4bc85c13 WYG |
511 | |
512 | hdr_len = ieee80211_hdrlen(fc); | |
513 | ||
0c2c8852 | 514 | /* Find idx into station table for destination station */ |
83007196 | 515 | sta_id = il_sta_id_or_broadcast(il, info->control.sta); |
e2ebc833 | 516 | if (sta_id == IL_INVALID_STATION) { |
e7392364 | 517 | D_DROP("Dropping - INVALID STATION: %pM\n", hdr->addr1); |
4bc85c13 WYG |
518 | goto drop; |
519 | } | |
520 | ||
58de00a4 | 521 | D_RATE("station Id %d\n", sta_id); |
4bc85c13 WYG |
522 | |
523 | if (ieee80211_is_data_qos(fc)) { | |
524 | u8 *qc = ieee80211_get_qos_ctl(hdr); | |
525 | tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; | |
526 | if (unlikely(tid >= MAX_TID_COUNT)) | |
527 | goto drop; | |
528 | } | |
529 | ||
530 | /* Descriptor for chosen Tx queue */ | |
46bc8d4b | 531 | txq = &il->txq[txq_id]; |
4bc85c13 WYG |
532 | q = &txq->q; |
533 | ||
e2ebc833 | 534 | if ((il_queue_space(q) < q->high_mark)) |
4bc85c13 WYG |
535 | goto drop; |
536 | ||
46bc8d4b | 537 | spin_lock_irqsave(&il->lock, flags); |
4bc85c13 | 538 | |
0c2c8852 | 539 | idx = il_get_cmd_idx(q, q->write_ptr, 0); |
4bc85c13 | 540 | |
00ea99e1 | 541 | txq->skbs[q->write_ptr] = skb; |
4bc85c13 WYG |
542 | |
543 | /* Init first empty entry in queue's array of Tx/cmd buffers */ | |
544 | out_cmd = txq->cmd[idx]; | |
545 | out_meta = &txq->meta[idx]; | |
e2ebc833 | 546 | tx_cmd = (struct il3945_tx_cmd *)out_cmd->cmd.payload; |
4bc85c13 WYG |
547 | memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr)); |
548 | memset(tx_cmd, 0, sizeof(*tx_cmd)); | |
549 | ||
550 | /* | |
551 | * Set up the Tx-command (not MAC!) header. | |
0c2c8852 | 552 | * Store the chosen Tx queue and TFD idx within the sequence field; |
4bc85c13 WYG |
553 | * after Tx, uCode's Tx response will return this value so driver can |
554 | * locate the frame within the tx queue and do post-tx processing. | |
555 | */ | |
4d69c752 | 556 | out_cmd->hdr.cmd = C_TX; |
e7392364 SG |
557 | out_cmd->hdr.sequence = |
558 | cpu_to_le16((u16) | |
559 | (QUEUE_TO_SEQ(txq_id) | IDX_TO_SEQ(q->write_ptr))); | |
4bc85c13 WYG |
560 | |
561 | /* Copy MAC header from skb into command buffer */ | |
562 | memcpy(tx_cmd->hdr, hdr, hdr_len); | |
563 | ||
4bc85c13 | 564 | if (info->control.hw_key) |
46bc8d4b | 565 | il3945_build_tx_cmd_hwcrypto(il, info, out_cmd, skb, sta_id); |
4bc85c13 WYG |
566 | |
567 | /* TODO need this for burst mode later on */ | |
46bc8d4b | 568 | il3945_build_tx_cmd_basic(il, out_cmd, info, hdr, sta_id); |
4bc85c13 | 569 | |
81fb4613 | 570 | il3945_hw_build_tx_cmd_rate(il, out_cmd, info, hdr, sta_id); |
4bc85c13 WYG |
571 | |
572 | /* Total # bytes to be transmitted */ | |
e7392364 | 573 | len = (u16) skb->len; |
4bc85c13 WYG |
574 | tx_cmd->len = cpu_to_le16(len); |
575 | ||
46bc8d4b SG |
576 | il_dbg_log_tx_data_frame(il, len, hdr); |
577 | il_update_stats(il, true, fc, len); | |
4bc85c13 WYG |
578 | tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK; |
579 | tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK; | |
580 | ||
581 | if (!ieee80211_has_morefrags(hdr->frame_control)) { | |
582 | txq->need_update = 1; | |
583 | } else { | |
584 | wait_write_ptr = 1; | |
585 | txq->need_update = 0; | |
586 | } | |
587 | ||
e7392364 | 588 | D_TX("sequence nr = 0X%x\n", le16_to_cpu(out_cmd->hdr.sequence)); |
58de00a4 | 589 | D_TX("tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags)); |
46bc8d4b | 590 | il_print_hex_dump(il, IL_DL_TX, tx_cmd, sizeof(*tx_cmd)); |
e7392364 SG |
591 | il_print_hex_dump(il, IL_DL_TX, (u8 *) tx_cmd->hdr, |
592 | ieee80211_hdrlen(fc)); | |
4bc85c13 WYG |
593 | |
594 | /* | |
595 | * Use the first empty entry in this queue's command buffer array | |
596 | * to contain the Tx command and MAC header concatenated together | |
597 | * (payload data will be in another buffer). | |
598 | * Size of this varies, due to varying MAC header length. | |
599 | * If end is not dword aligned, we'll have 2 extra bytes at the end | |
600 | * of the MAC header (device reads on dword boundaries). | |
601 | * We'll tell device about this padding later. | |
602 | */ | |
e7392364 SG |
603 | len = |
604 | sizeof(struct il3945_tx_cmd) + sizeof(struct il_cmd_header) + | |
605 | hdr_len; | |
4bc85c13 WYG |
606 | len = (len + 3) & ~3; |
607 | ||
608 | /* Physical address of this Tx command's header (not MAC header!), | |
609 | * within command buffer array. */ | |
e7392364 SG |
610 | txcmd_phys = |
611 | pci_map_single(il->pci_dev, &out_cmd->hdr, len, PCI_DMA_TODEVICE); | |
4bc85c13 WYG |
612 | /* we do not map meta data ... so we can safely access address to |
613 | * provide to unmap command*/ | |
614 | dma_unmap_addr_set(out_meta, mapping, txcmd_phys); | |
615 | dma_unmap_len_set(out_meta, len, len); | |
616 | ||
617 | /* Add buffer containing Tx command and MAC(!) header to TFD's | |
618 | * first entry */ | |
c39ae9fd | 619 | il->ops->lib->txq_attach_buf_to_tfd(il, txq, txcmd_phys, len, 1, 0); |
4bc85c13 WYG |
620 | |
621 | /* Set up TFD's 2nd entry to point directly to remainder of skb, | |
622 | * if any (802.11 null frames have no payload). */ | |
623 | len = skb->len - hdr_len; | |
624 | if (len) { | |
e7392364 SG |
625 | phys_addr = |
626 | pci_map_single(il->pci_dev, skb->data + hdr_len, len, | |
627 | PCI_DMA_TODEVICE); | |
c39ae9fd SG |
628 | il->ops->lib->txq_attach_buf_to_tfd(il, txq, phys_addr, len, 0, |
629 | U32_PAD(len)); | |
4bc85c13 WYG |
630 | } |
631 | ||
0c2c8852 | 632 | /* Tell device the write idx *just past* this latest filled TFD */ |
e2ebc833 | 633 | q->write_ptr = il_queue_inc_wrap(q->write_ptr, q->n_bd); |
46bc8d4b SG |
634 | il_txq_update_write_ptr(il, txq); |
635 | spin_unlock_irqrestore(&il->lock, flags); | |
4bc85c13 | 636 | |
e7392364 | 637 | if (il_queue_space(q) < q->high_mark && il->mac80211_registered) { |
4bc85c13 | 638 | if (wait_write_ptr) { |
46bc8d4b | 639 | spin_lock_irqsave(&il->lock, flags); |
4bc85c13 | 640 | txq->need_update = 1; |
46bc8d4b SG |
641 | il_txq_update_write_ptr(il, txq); |
642 | spin_unlock_irqrestore(&il->lock, flags); | |
4bc85c13 WYG |
643 | } |
644 | ||
46bc8d4b | 645 | il_stop_queue(il, txq); |
4bc85c13 WYG |
646 | } |
647 | ||
648 | return 0; | |
649 | ||
650 | drop_unlock: | |
46bc8d4b | 651 | spin_unlock_irqrestore(&il->lock, flags); |
4bc85c13 WYG |
652 | drop: |
653 | return -1; | |
654 | } | |
655 | ||
e7392364 SG |
656 | static int |
657 | il3945_get_measurement(struct il_priv *il, | |
658 | struct ieee80211_measurement_params *params, u8 type) | |
4bc85c13 | 659 | { |
e2ebc833 | 660 | struct il_spectrum_cmd spectrum; |
dcae1c64 | 661 | struct il_rx_pkt *pkt; |
e2ebc833 | 662 | struct il_host_cmd cmd = { |
4d69c752 | 663 | .id = C_SPECTRUM_MEASUREMENT, |
4bc85c13 WYG |
664 | .data = (void *)&spectrum, |
665 | .flags = CMD_WANT_SKB, | |
666 | }; | |
667 | u32 add_time = le64_to_cpu(params->start_time); | |
668 | int rc; | |
669 | int spectrum_resp_status; | |
670 | int duration = le16_to_cpu(params->duration); | |
4bc85c13 | 671 | |
7c2cde2e | 672 | if (il_is_associated(il)) |
e7392364 SG |
673 | add_time = |
674 | il_usecs_to_beacons(il, | |
675 | le64_to_cpu(params->start_time) - | |
676 | il->_3945.last_tsf, | |
c8b03958 | 677 | le16_to_cpu(il->timing.beacon_interval)); |
4bc85c13 WYG |
678 | |
679 | memset(&spectrum, 0, sizeof(spectrum)); | |
680 | ||
681 | spectrum.channel_count = cpu_to_le16(1); | |
682 | spectrum.flags = | |
683 | RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK; | |
684 | spectrum.filter_flags = MEASUREMENT_FILTER_FLAG; | |
685 | cmd.len = sizeof(spectrum); | |
686 | spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len)); | |
687 | ||
7c2cde2e | 688 | if (il_is_associated(il)) |
4bc85c13 | 689 | spectrum.start_time = |
e7392364 | 690 | il_add_beacon_time(il, il->_3945.last_beacon_time, add_time, |
c8b03958 | 691 | le16_to_cpu(il->timing.beacon_interval)); |
4bc85c13 WYG |
692 | else |
693 | spectrum.start_time = 0; | |
694 | ||
695 | spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT); | |
696 | spectrum.channels[0].channel = params->channel; | |
697 | spectrum.channels[0].type = type; | |
c8b03958 | 698 | if (il->active.flags & RXON_FLG_BAND_24G_MSK) |
e7392364 SG |
699 | spectrum.flags |= |
700 | RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK | | |
701 | RXON_FLG_TGG_PROTECT_MSK; | |
4bc85c13 | 702 | |
46bc8d4b | 703 | rc = il_send_cmd_sync(il, &cmd); |
4bc85c13 WYG |
704 | if (rc) |
705 | return rc; | |
706 | ||
dcae1c64 | 707 | pkt = (struct il_rx_pkt *)cmd.reply_page; |
e2ebc833 | 708 | if (pkt->hdr.flags & IL_CMD_FAILED_MSK) { |
4d69c752 | 709 | IL_ERR("Bad return from N_RX_ON_ASSOC command\n"); |
4bc85c13 WYG |
710 | rc = -EIO; |
711 | } | |
712 | ||
713 | spectrum_resp_status = le16_to_cpu(pkt->u.spectrum.status); | |
714 | switch (spectrum_resp_status) { | |
715 | case 0: /* Command will be handled */ | |
716 | if (pkt->u.spectrum.id != 0xff) { | |
58de00a4 | 717 | D_INFO("Replaced existing measurement: %d\n", |
e7392364 | 718 | pkt->u.spectrum.id); |
46bc8d4b | 719 | il->measurement_status &= ~MEASUREMENT_READY; |
4bc85c13 | 720 | } |
46bc8d4b | 721 | il->measurement_status |= MEASUREMENT_ACTIVE; |
4bc85c13 WYG |
722 | rc = 0; |
723 | break; | |
724 | ||
725 | case 1: /* Command will not be handled */ | |
726 | rc = -EAGAIN; | |
727 | break; | |
728 | } | |
729 | ||
46bc8d4b | 730 | il_free_pages(il, cmd.reply_page); |
4bc85c13 WYG |
731 | |
732 | return rc; | |
733 | } | |
734 | ||
e7392364 SG |
735 | static void |
736 | il3945_hdl_alive(struct il_priv *il, struct il_rx_buf *rxb) | |
4bc85c13 | 737 | { |
dcae1c64 | 738 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
e2ebc833 | 739 | struct il_alive_resp *palive; |
4bc85c13 WYG |
740 | struct delayed_work *pwork; |
741 | ||
742 | palive = &pkt->u.alive_frame; | |
743 | ||
e7392364 SG |
744 | D_INFO("Alive ucode status 0x%08X revision " "0x%01X 0x%01X\n", |
745 | palive->is_valid, palive->ver_type, palive->ver_subtype); | |
4bc85c13 WYG |
746 | |
747 | if (palive->ver_subtype == INITIALIZE_SUBTYPE) { | |
58de00a4 | 748 | D_INFO("Initialization Alive received.\n"); |
46bc8d4b | 749 | memcpy(&il->card_alive_init, &pkt->u.alive_frame, |
e2ebc833 | 750 | sizeof(struct il_alive_resp)); |
46bc8d4b | 751 | pwork = &il->init_alive_start; |
4bc85c13 | 752 | } else { |
58de00a4 | 753 | D_INFO("Runtime Alive received.\n"); |
46bc8d4b | 754 | memcpy(&il->card_alive, &pkt->u.alive_frame, |
e2ebc833 | 755 | sizeof(struct il_alive_resp)); |
46bc8d4b SG |
756 | pwork = &il->alive_start; |
757 | il3945_disable_events(il); | |
4bc85c13 WYG |
758 | } |
759 | ||
760 | /* We delay the ALIVE response by 5ms to | |
761 | * give the HW RF Kill time to activate... */ | |
762 | if (palive->is_valid == UCODE_VALID_OK) | |
e7392364 | 763 | queue_delayed_work(il->workqueue, pwork, msecs_to_jiffies(5)); |
4bc85c13 | 764 | else |
9406f797 | 765 | IL_WARN("uCode did not respond OK.\n"); |
4bc85c13 WYG |
766 | } |
767 | ||
e7392364 SG |
768 | static void |
769 | il3945_hdl_add_sta(struct il_priv *il, struct il_rx_buf *rxb) | |
4bc85c13 | 770 | { |
d3175167 | 771 | #ifdef CONFIG_IWLEGACY_DEBUG |
dcae1c64 | 772 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
4bc85c13 WYG |
773 | #endif |
774 | ||
4d69c752 | 775 | D_RX("Received C_ADD_STA: 0x%02X\n", pkt->u.status); |
4bc85c13 WYG |
776 | } |
777 | ||
e7392364 SG |
778 | static void |
779 | il3945_hdl_beacon(struct il_priv *il, struct il_rx_buf *rxb) | |
4bc85c13 | 780 | { |
dcae1c64 | 781 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
e2ebc833 | 782 | struct il3945_beacon_notif *beacon = &(pkt->u.beacon_status); |
d3175167 | 783 | #ifdef CONFIG_IWLEGACY_DEBUG |
4bc85c13 WYG |
784 | u8 rate = beacon->beacon_notify_hdr.rate; |
785 | ||
e7392364 SG |
786 | D_RX("beacon status %x retries %d iss %d " "tsf %d %d rate %d\n", |
787 | le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, | |
788 | beacon->beacon_notify_hdr.failure_frame, | |
789 | le32_to_cpu(beacon->ibss_mgr_status), | |
790 | le32_to_cpu(beacon->high_tsf), le32_to_cpu(beacon->low_tsf), rate); | |
4bc85c13 WYG |
791 | #endif |
792 | ||
46bc8d4b | 793 | il->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status); |
4bc85c13 | 794 | |
4bc85c13 WYG |
795 | } |
796 | ||
797 | /* Handle notification from uCode that card's power state is changing | |
798 | * due to software, hardware, or critical temperature RFKILL */ | |
e7392364 SG |
799 | static void |
800 | il3945_hdl_card_state(struct il_priv *il, struct il_rx_buf *rxb) | |
4bc85c13 | 801 | { |
dcae1c64 | 802 | struct il_rx_pkt *pkt = rxb_addr(rxb); |
4bc85c13 | 803 | u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags); |
46bc8d4b | 804 | unsigned long status = il->status; |
4bc85c13 | 805 | |
9406f797 | 806 | IL_WARN("Card state received: HW:%s SW:%s\n", |
e7392364 SG |
807 | (flags & HW_CARD_DISABLED) ? "Kill" : "On", |
808 | (flags & SW_CARD_DISABLED) ? "Kill" : "On"); | |
4bc85c13 | 809 | |
e7392364 | 810 | _il_wr(il, CSR_UCODE_DRV_GP1_SET, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
4bc85c13 WYG |
811 | |
812 | if (flags & HW_CARD_DISABLED) | |
a6766ccd | 813 | set_bit(S_RF_KILL_HW, &il->status); |
4bc85c13 | 814 | else |
a6766ccd | 815 | clear_bit(S_RF_KILL_HW, &il->status); |
4bc85c13 | 816 | |
46bc8d4b | 817 | il_scan_cancel(il); |
4bc85c13 | 818 | |
a6766ccd SG |
819 | if ((test_bit(S_RF_KILL_HW, &status) != |
820 | test_bit(S_RF_KILL_HW, &il->status))) | |
46bc8d4b | 821 | wiphy_rfkill_set_hw_state(il->hw->wiphy, |
e7392364 | 822 | test_bit(S_RF_KILL_HW, &il->status)); |
4bc85c13 | 823 | else |
46bc8d4b | 824 | wake_up(&il->wait_command_queue); |
4bc85c13 WYG |
825 | } |
826 | ||
827 | /** | |
d0c72347 | 828 | * il3945_setup_handlers - Initialize Rx handler callbacks |
4bc85c13 WYG |
829 | * |
830 | * Setup the RX handlers for each of the reply types sent from the uCode | |
831 | * to the host. | |
832 | * | |
833 | * This function chains into the hardware specific files for them to setup | |
834 | * any hardware specific handlers as well. | |
835 | */ | |
e7392364 SG |
836 | static void |
837 | il3945_setup_handlers(struct il_priv *il) | |
4bc85c13 | 838 | { |
6e9848b4 SG |
839 | il->handlers[N_ALIVE] = il3945_hdl_alive; |
840 | il->handlers[C_ADD_STA] = il3945_hdl_add_sta; | |
841 | il->handlers[N_ERROR] = il_hdl_error; | |
d2dfb33e | 842 | il->handlers[N_CHANNEL_SWITCH] = il_hdl_csa; |
e7392364 | 843 | il->handlers[N_SPECTRUM_MEASUREMENT] = il_hdl_spectrum_measurement; |
d2dfb33e | 844 | il->handlers[N_PM_SLEEP] = il_hdl_pm_sleep; |
e7392364 | 845 | il->handlers[N_PM_DEBUG_STATS] = il_hdl_pm_debug_stats; |
d2dfb33e | 846 | il->handlers[N_BEACON] = il3945_hdl_beacon; |
4bc85c13 WYG |
847 | |
848 | /* | |
849 | * The same handler is used for both the REPLY to a discrete | |
ebf0d90d SG |
850 | * stats request from the host as well as for the periodic |
851 | * stats notifications (after received beacons) from the uCode. | |
4bc85c13 | 852 | */ |
d2dfb33e SG |
853 | il->handlers[C_STATS] = il3945_hdl_c_stats; |
854 | il->handlers[N_STATS] = il3945_hdl_stats; | |
4bc85c13 | 855 | |
46bc8d4b | 856 | il_setup_rx_scan_handlers(il); |
d2dfb33e | 857 | il->handlers[N_CARD_STATE] = il3945_hdl_card_state; |
4bc85c13 WYG |
858 | |
859 | /* Set up hardware specific Rx handlers */ | |
d0c72347 | 860 | il3945_hw_handler_setup(il); |
4bc85c13 WYG |
861 | } |
862 | ||
863 | /************************** RX-FUNCTIONS ****************************/ | |
864 | /* | |
865 | * Rx theory of operation | |
866 | * | |
867 | * The host allocates 32 DMA target addresses and passes the host address | |
3b98c7f4 | 868 | * to the firmware at register IL_RFDS_TBL_LOWER + N * RFD_SIZE where N is |
4bc85c13 WYG |
869 | * 0 to 31 |
870 | * | |
871 | * Rx Queue Indexes | |
0c2c8852 | 872 | * The host/firmware share two idx registers for managing the Rx buffers. |
4bc85c13 | 873 | * |
0c2c8852 | 874 | * The READ idx maps to the first position that the firmware may be writing |
4bc85c13 WYG |
875 | * to -- the driver can read up to (but not including) this position and get |
876 | * good data. | |
0c2c8852 | 877 | * The READ idx is managed by the firmware once the card is enabled. |
4bc85c13 | 878 | * |
0c2c8852 | 879 | * The WRITE idx maps to the last position the driver has read from -- the |
4bc85c13 WYG |
880 | * position preceding WRITE is the last slot the firmware can place a packet. |
881 | * | |
882 | * The queue is empty (no good data) if WRITE = READ - 1, and is full if | |
883 | * WRITE = READ. | |
884 | * | |
885 | * During initialization, the host sets up the READ queue position to the first | |
2d09b062 | 886 | * IDX position, and WRITE to the last (READ - 1 wrapped) |
4bc85c13 | 887 | * |
0c2c8852 SG |
888 | * When the firmware places a packet in a buffer, it will advance the READ idx |
889 | * and fire the RX interrupt. The driver can then query the READ idx and | |
890 | * process as many packets as possible, moving the WRITE idx forward as it | |
4bc85c13 WYG |
891 | * resets the Rx queue buffers with new memory. |
892 | * | |
893 | * The management in the driver is as follows: | |
894 | * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When | |
895 | * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled | |
896 | * to replenish the iwl->rxq->rx_free. | |
e2ebc833 | 897 | * + In il3945_rx_replenish (scheduled) if 'processed' != 'read' then the |
2d09b062 | 898 | * iwl->rxq is replenished and the READ IDX is updated (updating the |
0c2c8852 | 899 | * 'processed' and 'read' driver idxes as well) |
4bc85c13 | 900 | * + A received packet is processed and handed to the kernel network stack, |
0c2c8852 | 901 | * detached from the iwl->rxq. The driver 'processed' idx is updated. |
4bc85c13 WYG |
902 | * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free |
903 | * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ | |
2d09b062 | 904 | * IDX is not incremented and iwl->status(RX_STALLED) is set. If there |
4bc85c13 WYG |
905 | * were enough free buffers and RX_STALLED is set it is cleared. |
906 | * | |
907 | * | |
908 | * Driver sequence: | |
909 | * | |
e2ebc833 SG |
910 | * il3945_rx_replenish() Replenishes rx_free list from rx_used, and calls |
911 | * il3945_rx_queue_restock | |
912 | * il3945_rx_queue_restock() Moves available buffers from rx_free into Rx | |
4bc85c13 | 913 | * queue, updates firmware pointers, and updates |
0c2c8852 | 914 | * the WRITE idx. If insufficient rx_free buffers |
e2ebc833 | 915 | * are available, schedules il3945_rx_replenish |
4bc85c13 WYG |
916 | * |
917 | * -- enable interrupts -- | |
b73bb5f1 | 918 | * ISR - il3945_rx() Detach il_rx_bufs from pool up to the |
2d09b062 | 919 | * READ IDX, detaching the SKB from the pool. |
4bc85c13 | 920 | * Moves the packet buffer from queue to rx_used. |
e2ebc833 | 921 | * Calls il3945_rx_queue_restock to refill any empty |
4bc85c13 WYG |
922 | * slots. |
923 | * ... | |
924 | * | |
925 | */ | |
926 | ||
927 | /** | |
e2ebc833 | 928 | * il3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr |
4bc85c13 | 929 | */ |
e7392364 SG |
930 | static inline __le32 |
931 | il3945_dma_addr2rbd_ptr(struct il_priv *il, dma_addr_t dma_addr) | |
4bc85c13 | 932 | { |
e7392364 | 933 | return cpu_to_le32((u32) dma_addr); |
4bc85c13 WYG |
934 | } |
935 | ||
936 | /** | |
e2ebc833 | 937 | * il3945_rx_queue_restock - refill RX queue from pre-allocated pool |
4bc85c13 WYG |
938 | * |
939 | * If there are slots in the RX queue that need to be restocked, | |
940 | * and we have free pre-allocated buffers, fill the ranks as much | |
941 | * as we can, pulling from rx_free. | |
942 | * | |
0c2c8852 | 943 | * This moves the 'write' idx forward to catch up with 'processed', and |
4bc85c13 WYG |
944 | * also updates the memory address in the firmware to reference the new |
945 | * target buffer. | |
946 | */ | |
e7392364 SG |
947 | static void |
948 | il3945_rx_queue_restock(struct il_priv *il) | |
4bc85c13 | 949 | { |
46bc8d4b | 950 | struct il_rx_queue *rxq = &il->rxq; |
4bc85c13 | 951 | struct list_head *element; |
b73bb5f1 | 952 | struct il_rx_buf *rxb; |
4bc85c13 WYG |
953 | unsigned long flags; |
954 | int write; | |
955 | ||
956 | spin_lock_irqsave(&rxq->lock, flags); | |
957 | write = rxq->write & ~0x7; | |
232913b5 | 958 | while (il_rx_queue_space(rxq) > 0 && rxq->free_count) { |
4bc85c13 WYG |
959 | /* Get next free Rx buffer, remove from free list */ |
960 | element = rxq->rx_free.next; | |
b73bb5f1 | 961 | rxb = list_entry(element, struct il_rx_buf, list); |
4bc85c13 WYG |
962 | list_del(element); |
963 | ||
964 | /* Point to Rx buffer via next RBD in circular buffer */ | |
e7392364 SG |
965 | rxq->bd[rxq->write] = |
966 | il3945_dma_addr2rbd_ptr(il, rxb->page_dma); | |
4bc85c13 WYG |
967 | rxq->queue[rxq->write] = rxb; |
968 | rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; | |
969 | rxq->free_count--; | |
970 | } | |
971 | spin_unlock_irqrestore(&rxq->lock, flags); | |
972 | /* If the pre-allocated buffer pool is dropping low, schedule to | |
973 | * refill it */ | |
974 | if (rxq->free_count <= RX_LOW_WATERMARK) | |
46bc8d4b | 975 | queue_work(il->workqueue, &il->rx_replenish); |
4bc85c13 | 976 | |
4bc85c13 WYG |
977 | /* If we've added more space for the firmware to place data, tell it. |
978 | * Increment device's write pointer in multiples of 8. */ | |
232913b5 SG |
979 | if (rxq->write_actual != (rxq->write & ~0x7) || |
980 | abs(rxq->write - rxq->read) > 7) { | |
4bc85c13 WYG |
981 | spin_lock_irqsave(&rxq->lock, flags); |
982 | rxq->need_update = 1; | |
983 | spin_unlock_irqrestore(&rxq->lock, flags); | |
46bc8d4b | 984 | il_rx_queue_update_write_ptr(il, rxq); |
4bc85c13 WYG |
985 | } |
986 | } | |
987 | ||
988 | /** | |
e2ebc833 | 989 | * il3945_rx_replenish - Move all used packet from rx_used to rx_free |
4bc85c13 WYG |
990 | * |
991 | * When moving to rx_free an SKB is allocated for the slot. | |
992 | * | |
e2ebc833 | 993 | * Also restock the Rx queue via il3945_rx_queue_restock. |
4bc85c13 WYG |
994 | * This is called as a scheduled work item (except for during initialization) |
995 | */ | |
e7392364 SG |
996 | static void |
997 | il3945_rx_allocate(struct il_priv *il, gfp_t priority) | |
4bc85c13 | 998 | { |
46bc8d4b | 999 | struct il_rx_queue *rxq = &il->rxq; |
4bc85c13 | 1000 | struct list_head *element; |
b73bb5f1 | 1001 | struct il_rx_buf *rxb; |
4bc85c13 WYG |
1002 | struct page *page; |
1003 | unsigned long flags; | |
1004 | gfp_t gfp_mask = priority; | |
1005 | ||
1006 | while (1) { | |
1007 | spin_lock_irqsave(&rxq->lock, flags); | |
1008 | ||
1009 | if (list_empty(&rxq->rx_used)) { | |
1010 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1011 | return; | |
1012 | } | |
1013 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1014 | ||
1015 | if (rxq->free_count > RX_LOW_WATERMARK) | |
1016 | gfp_mask |= __GFP_NOWARN; | |
1017 | ||
46bc8d4b | 1018 | if (il->hw_params.rx_page_order > 0) |
4bc85c13 WYG |
1019 | gfp_mask |= __GFP_COMP; |
1020 | ||
1021 | /* Alloc a new receive buffer */ | |
46bc8d4b | 1022 | page = alloc_pages(gfp_mask, il->hw_params.rx_page_order); |
4bc85c13 WYG |
1023 | if (!page) { |
1024 | if (net_ratelimit()) | |
58de00a4 | 1025 | D_INFO("Failed to allocate SKB buffer.\n"); |
232913b5 | 1026 | if (rxq->free_count <= RX_LOW_WATERMARK && |
4bc85c13 | 1027 | net_ratelimit()) |
1722f8e1 SG |
1028 | IL_ERR("Failed to allocate SKB buffer with %0x." |
1029 | "Only %u free buffers remaining.\n", | |
1030 | priority, rxq->free_count); | |
4bc85c13 WYG |
1031 | /* We don't reschedule replenish work here -- we will |
1032 | * call the restock method and if it still needs | |
1033 | * more buffers it will schedule replenish */ | |
1034 | break; | |
1035 | } | |
1036 | ||
1037 | spin_lock_irqsave(&rxq->lock, flags); | |
1038 | if (list_empty(&rxq->rx_used)) { | |
1039 | spin_unlock_irqrestore(&rxq->lock, flags); | |
46bc8d4b | 1040 | __free_pages(page, il->hw_params.rx_page_order); |
4bc85c13 WYG |
1041 | return; |
1042 | } | |
1043 | element = rxq->rx_used.next; | |
b73bb5f1 | 1044 | rxb = list_entry(element, struct il_rx_buf, list); |
4bc85c13 WYG |
1045 | list_del(element); |
1046 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1047 | ||
1048 | rxb->page = page; | |
1049 | /* Get physical address of RB/SKB */ | |
e7392364 SG |
1050 | rxb->page_dma = |
1051 | pci_map_page(il->pci_dev, page, 0, | |
1052 | PAGE_SIZE << il->hw_params.rx_page_order, | |
1053 | PCI_DMA_FROMDEVICE); | |
4bc85c13 WYG |
1054 | |
1055 | spin_lock_irqsave(&rxq->lock, flags); | |
1056 | ||
1057 | list_add_tail(&rxb->list, &rxq->rx_free); | |
1058 | rxq->free_count++; | |
46bc8d4b | 1059 | il->alloc_rxb_page++; |
4bc85c13 WYG |
1060 | |
1061 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1062 | } | |
1063 | } | |
1064 | ||
e7392364 SG |
1065 | void |
1066 | il3945_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq) | |
4bc85c13 WYG |
1067 | { |
1068 | unsigned long flags; | |
1069 | int i; | |
1070 | spin_lock_irqsave(&rxq->lock, flags); | |
1071 | INIT_LIST_HEAD(&rxq->rx_free); | |
1072 | INIT_LIST_HEAD(&rxq->rx_used); | |
1073 | /* Fill the rx_used queue with _all_ of the Rx buffers */ | |
1074 | for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { | |
1075 | /* In the reset function, these buffers may have been allocated | |
1076 | * to an SKB, so we need to unmap and free potential storage */ | |
1077 | if (rxq->pool[i].page != NULL) { | |
46bc8d4b | 1078 | pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma, |
e7392364 SG |
1079 | PAGE_SIZE << il->hw_params.rx_page_order, |
1080 | PCI_DMA_FROMDEVICE); | |
46bc8d4b | 1081 | __il_free_pages(il, rxq->pool[i].page); |
4bc85c13 WYG |
1082 | rxq->pool[i].page = NULL; |
1083 | } | |
1084 | list_add_tail(&rxq->pool[i].list, &rxq->rx_used); | |
1085 | } | |
1086 | ||
1087 | /* Set us so that we have processed and used all buffers, but have | |
1088 | * not restocked the Rx queue with fresh buffers */ | |
1089 | rxq->read = rxq->write = 0; | |
1090 | rxq->write_actual = 0; | |
1091 | rxq->free_count = 0; | |
1092 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1093 | } | |
1094 | ||
e7392364 SG |
1095 | void |
1096 | il3945_rx_replenish(void *data) | |
4bc85c13 | 1097 | { |
46bc8d4b | 1098 | struct il_priv *il = data; |
4bc85c13 WYG |
1099 | unsigned long flags; |
1100 | ||
46bc8d4b | 1101 | il3945_rx_allocate(il, GFP_KERNEL); |
4bc85c13 | 1102 | |
46bc8d4b SG |
1103 | spin_lock_irqsave(&il->lock, flags); |
1104 | il3945_rx_queue_restock(il); | |
1105 | spin_unlock_irqrestore(&il->lock, flags); | |
4bc85c13 WYG |
1106 | } |
1107 | ||
e7392364 SG |
1108 | static void |
1109 | il3945_rx_replenish_now(struct il_priv *il) | |
4bc85c13 | 1110 | { |
46bc8d4b | 1111 | il3945_rx_allocate(il, GFP_ATOMIC); |
4bc85c13 | 1112 | |
46bc8d4b | 1113 | il3945_rx_queue_restock(il); |
4bc85c13 WYG |
1114 | } |
1115 | ||
4bc85c13 WYG |
1116 | /* Assumes that the skb field of the buffers in 'pool' is kept accurate. |
1117 | * If an SKB has been detached, the POOL needs to have its SKB set to NULL | |
1118 | * This free routine walks the list of POOL entries and if SKB is set to | |
1119 | * non NULL it is unmapped and freed | |
1120 | */ | |
e7392364 SG |
1121 | static void |
1122 | il3945_rx_queue_free(struct il_priv *il, struct il_rx_queue *rxq) | |
4bc85c13 WYG |
1123 | { |
1124 | int i; | |
1125 | for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) { | |
1126 | if (rxq->pool[i].page != NULL) { | |
46bc8d4b | 1127 | pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma, |
e7392364 SG |
1128 | PAGE_SIZE << il->hw_params.rx_page_order, |
1129 | PCI_DMA_FROMDEVICE); | |
46bc8d4b | 1130 | __il_free_pages(il, rxq->pool[i].page); |
4bc85c13 WYG |
1131 | rxq->pool[i].page = NULL; |
1132 | } | |
1133 | } | |
1134 | ||
46bc8d4b | 1135 | dma_free_coherent(&il->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd, |
4bc85c13 | 1136 | rxq->bd_dma); |
46bc8d4b | 1137 | dma_free_coherent(&il->pci_dev->dev, sizeof(struct il_rb_status), |
4bc85c13 WYG |
1138 | rxq->rb_stts, rxq->rb_stts_dma); |
1139 | rxq->bd = NULL; | |
e7392364 | 1140 | rxq->rb_stts = NULL; |
4bc85c13 WYG |
1141 | } |
1142 | ||
4bc85c13 WYG |
1143 | /* Convert linear signal-to-noise ratio into dB */ |
1144 | static u8 ratio2dB[100] = { | |
1145 | /* 0 1 2 3 4 5 6 7 8 9 */ | |
e7392364 SG |
1146 | 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */ |
1147 | 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */ | |
1148 | 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */ | |
1149 | 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */ | |
1150 | 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */ | |
1151 | 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */ | |
1152 | 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */ | |
1153 | 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */ | |
1154 | 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */ | |
1155 | 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */ | |
4bc85c13 WYG |
1156 | }; |
1157 | ||
1158 | /* Calculates a relative dB value from a ratio of linear | |
1159 | * (i.e. not dB) signal levels. | |
1160 | * Conversion assumes that levels are voltages (20*log), not powers (10*log). */ | |
e7392364 SG |
1161 | int |
1162 | il3945_calc_db_from_ratio(int sig_ratio) | |
4bc85c13 WYG |
1163 | { |
1164 | /* 1000:1 or higher just report as 60 dB */ | |
1165 | if (sig_ratio >= 1000) | |
1166 | return 60; | |
1167 | ||
1168 | /* 100:1 or higher, divide by 10 and use table, | |
1169 | * add 20 dB to make up for divide by 10 */ | |
1170 | if (sig_ratio >= 100) | |
e7392364 | 1171 | return 20 + (int)ratio2dB[sig_ratio / 10]; |
4bc85c13 WYG |
1172 | |
1173 | /* We shouldn't see this */ | |
1174 | if (sig_ratio < 1) | |
1175 | return 0; | |
1176 | ||
1177 | /* Use table for ratios 1:1 - 99:1 */ | |
1178 | return (int)ratio2dB[sig_ratio]; | |
1179 | } | |
1180 | ||
1181 | /** | |
e2ebc833 | 1182 | * il3945_rx_handle - Main entry function for receiving responses from uCode |
4bc85c13 | 1183 | * |
d0c72347 | 1184 | * Uses the il->handlers callback function array to invoke |
4bc85c13 WYG |
1185 | * the appropriate handlers, including command responses, |
1186 | * frame-received notifications, and other notifications. | |
1187 | */ | |
e7392364 SG |
1188 | static void |
1189 | il3945_rx_handle(struct il_priv *il) | |
4bc85c13 | 1190 | { |
b73bb5f1 | 1191 | struct il_rx_buf *rxb; |
dcae1c64 | 1192 | struct il_rx_pkt *pkt; |
46bc8d4b | 1193 | struct il_rx_queue *rxq = &il->rxq; |
4bc85c13 WYG |
1194 | u32 r, i; |
1195 | int reclaim; | |
1196 | unsigned long flags; | |
1197 | u8 fill_rx = 0; | |
1198 | u32 count = 8; | |
1199 | int total_empty = 0; | |
1200 | ||
0c2c8852 | 1201 | /* uCode's read idx (stored in shared DRAM) indicates the last Rx |
4bc85c13 | 1202 | * buffer that the driver may process (last buffer filled by ucode). */ |
e7392364 | 1203 | r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF; |
4bc85c13 WYG |
1204 | i = rxq->read; |
1205 | ||
1206 | /* calculate total frames need to be restock after handling RX */ | |
1207 | total_empty = r - rxq->write_actual; | |
1208 | if (total_empty < 0) | |
1209 | total_empty += RX_QUEUE_SIZE; | |
1210 | ||
1211 | if (total_empty > (RX_QUEUE_SIZE / 2)) | |
1212 | fill_rx = 1; | |
1213 | /* Rx interrupt, but nothing sent from uCode */ | |
1214 | if (i == r) | |
58de00a4 | 1215 | D_RX("r = %d, i = %d\n", r, i); |
4bc85c13 WYG |
1216 | |
1217 | while (i != r) { | |
1218 | int len; | |
1219 | ||
1220 | rxb = rxq->queue[i]; | |
1221 | ||
1222 | /* If an RXB doesn't have a Rx queue slot associated with it, | |
1223 | * then a bug has been introduced in the queue refilling | |
1224 | * routines -- catch it here */ | |
1225 | BUG_ON(rxb == NULL); | |
1226 | ||
1227 | rxq->queue[i] = NULL; | |
1228 | ||
46bc8d4b SG |
1229 | pci_unmap_page(il->pci_dev, rxb->page_dma, |
1230 | PAGE_SIZE << il->hw_params.rx_page_order, | |
4bc85c13 WYG |
1231 | PCI_DMA_FROMDEVICE); |
1232 | pkt = rxb_addr(rxb); | |
1233 | ||
e94a4099 | 1234 | len = le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK; |
e7392364 | 1235 | len += sizeof(u32); /* account for status word */ |
4bc85c13 WYG |
1236 | |
1237 | /* Reclaim a command buffer only if this packet is a response | |
1238 | * to a (driver-originated) command. | |
1239 | * If the packet (e.g. Rx frame) originated from uCode, | |
1240 | * there is no command buffer to reclaim. | |
1241 | * Ucode should set SEQ_RX_FRAME bit if ucode-originated, | |
1242 | * but apparently a few don't get set; catch them here. */ | |
1243 | reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) && | |
e7392364 | 1244 | pkt->hdr.cmd != N_STATS && pkt->hdr.cmd != C_TX; |
4bc85c13 WYG |
1245 | |
1246 | /* Based on type of command response or notification, | |
1247 | * handle those that need handling via function in | |
d0c72347 SG |
1248 | * handlers table. See il3945_setup_handlers() */ |
1249 | if (il->handlers[pkt->hdr.cmd]) { | |
58de00a4 | 1250 | D_RX("r = %d, i = %d, %s, 0x%02x\n", r, i, |
e7392364 | 1251 | il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); |
d0c72347 SG |
1252 | il->isr_stats.handlers[pkt->hdr.cmd]++; |
1253 | il->handlers[pkt->hdr.cmd] (il, rxb); | |
4bc85c13 WYG |
1254 | } else { |
1255 | /* No handling needed */ | |
e7392364 SG |
1256 | D_RX("r %d i %d No handler needed for %s, 0x%02x\n", r, |
1257 | i, il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd); | |
4bc85c13 WYG |
1258 | } |
1259 | ||
1260 | /* | |
1261 | * XXX: After here, we should always check rxb->page | |
1262 | * against NULL before touching it or its virtual | |
d0c72347 | 1263 | * memory (pkt). Because some handler might have |
4bc85c13 WYG |
1264 | * already taken or freed the pages. |
1265 | */ | |
1266 | ||
1267 | if (reclaim) { | |
1268 | /* Invoke any callbacks, transfer the buffer to caller, | |
e2ebc833 | 1269 | * and fire off the (possibly) blocking il_send_cmd() |
4bc85c13 WYG |
1270 | * as we reclaim the driver command queue */ |
1271 | if (rxb->page) | |
46bc8d4b | 1272 | il_tx_cmd_complete(il, rxb); |
4bc85c13 | 1273 | else |
9406f797 | 1274 | IL_WARN("Claim null rxb?\n"); |
4bc85c13 WYG |
1275 | } |
1276 | ||
1277 | /* Reuse the page if possible. For notification packets and | |
1278 | * SKBs that fail to Rx correctly, add them back into the | |
1279 | * rx_free list for reuse later. */ | |
1280 | spin_lock_irqsave(&rxq->lock, flags); | |
1281 | if (rxb->page != NULL) { | |
e7392364 SG |
1282 | rxb->page_dma = |
1283 | pci_map_page(il->pci_dev, rxb->page, 0, | |
1284 | PAGE_SIZE << il->hw_params. | |
1285 | rx_page_order, PCI_DMA_FROMDEVICE); | |
4bc85c13 WYG |
1286 | list_add_tail(&rxb->list, &rxq->rx_free); |
1287 | rxq->free_count++; | |
1288 | } else | |
1289 | list_add_tail(&rxb->list, &rxq->rx_used); | |
1290 | ||
1291 | spin_unlock_irqrestore(&rxq->lock, flags); | |
1292 | ||
1293 | i = (i + 1) & RX_QUEUE_MASK; | |
1294 | /* If there are a lot of unused frames, | |
1295 | * restock the Rx queue so ucode won't assert. */ | |
1296 | if (fill_rx) { | |
1297 | count++; | |
1298 | if (count >= 8) { | |
1299 | rxq->read = i; | |
46bc8d4b | 1300 | il3945_rx_replenish_now(il); |
4bc85c13 WYG |
1301 | count = 0; |
1302 | } | |
1303 | } | |
1304 | } | |
1305 | ||
1306 | /* Backtrack one entry */ | |
1307 | rxq->read = i; | |
1308 | if (fill_rx) | |
46bc8d4b | 1309 | il3945_rx_replenish_now(il); |
4bc85c13 | 1310 | else |
46bc8d4b | 1311 | il3945_rx_queue_restock(il); |
4bc85c13 WYG |
1312 | } |
1313 | ||
1314 | /* call this function to flush any scheduled tasklet */ | |
e7392364 SG |
1315 | static inline void |
1316 | il3945_synchronize_irq(struct il_priv *il) | |
4bc85c13 | 1317 | { |
e7392364 | 1318 | /* wait to make sure we flush pending tasklet */ |
46bc8d4b SG |
1319 | synchronize_irq(il->pci_dev->irq); |
1320 | tasklet_kill(&il->irq_tasklet); | |
4bc85c13 WYG |
1321 | } |
1322 | ||
e7392364 SG |
1323 | static const char * |
1324 | il3945_desc_lookup(int i) | |
4bc85c13 WYG |
1325 | { |
1326 | switch (i) { | |
1327 | case 1: | |
1328 | return "FAIL"; | |
1329 | case 2: | |
1330 | return "BAD_PARAM"; | |
1331 | case 3: | |
1332 | return "BAD_CHECKSUM"; | |
1333 | case 4: | |
1334 | return "NMI_INTERRUPT"; | |
1335 | case 5: | |
1336 | return "SYSASSERT"; | |
1337 | case 6: | |
1338 | return "FATAL_ERROR"; | |
1339 | } | |
1340 | ||
1341 | return "UNKNOWN"; | |
1342 | } | |
1343 | ||
1344 | #define ERROR_START_OFFSET (1 * sizeof(u32)) | |
1345 | #define ERROR_ELEM_SIZE (7 * sizeof(u32)) | |
1346 | ||
e7392364 SG |
1347 | void |
1348 | il3945_dump_nic_error_log(struct il_priv *il) | |
4bc85c13 WYG |
1349 | { |
1350 | u32 i; | |
1351 | u32 desc, time, count, base, data1; | |
1352 | u32 blink1, blink2, ilink1, ilink2; | |
1353 | ||
46bc8d4b | 1354 | base = le32_to_cpu(il->card_alive.error_event_table_ptr); |
4bc85c13 | 1355 | |
e2ebc833 | 1356 | if (!il3945_hw_valid_rtc_data_addr(base)) { |
9406f797 | 1357 | IL_ERR("Not valid error log pointer 0x%08X\n", base); |
4bc85c13 WYG |
1358 | return; |
1359 | } | |
1360 | ||
46bc8d4b | 1361 | count = il_read_targ_mem(il, base); |
4bc85c13 WYG |
1362 | |
1363 | if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) { | |
9406f797 | 1364 | IL_ERR("Start IWL Error Log Dump:\n"); |
e7392364 | 1365 | IL_ERR("Status: 0x%08lX, count: %d\n", il->status, count); |
4bc85c13 WYG |
1366 | } |
1367 | ||
9406f797 | 1368 | IL_ERR("Desc Time asrtPC blink2 " |
e7392364 | 1369 | "ilink1 nmiPC Line\n"); |
4bc85c13 WYG |
1370 | for (i = ERROR_START_OFFSET; |
1371 | i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET; | |
1372 | i += ERROR_ELEM_SIZE) { | |
46bc8d4b | 1373 | desc = il_read_targ_mem(il, base + i); |
e7392364 SG |
1374 | time = il_read_targ_mem(il, base + i + 1 * sizeof(u32)); |
1375 | blink1 = il_read_targ_mem(il, base + i + 2 * sizeof(u32)); | |
1376 | blink2 = il_read_targ_mem(il, base + i + 3 * sizeof(u32)); | |
1377 | ilink1 = il_read_targ_mem(il, base + i + 4 * sizeof(u32)); | |
1378 | ilink2 = il_read_targ_mem(il, base + i + 5 * sizeof(u32)); | |
1379 | data1 = il_read_targ_mem(il, base + i + 6 * sizeof(u32)); | |
4bc85c13 | 1380 | |
e7392364 SG |
1381 | IL_ERR("%-13s (0x%X) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n", |
1382 | il3945_desc_lookup(desc), desc, time, blink1, blink2, | |
1383 | ilink1, ilink2, data1); | |
4bc85c13 WYG |
1384 | } |
1385 | } | |
1386 | ||
e7392364 SG |
1387 | static void |
1388 | il3945_irq_tasklet(struct il_priv *il) | |
4bc85c13 WYG |
1389 | { |
1390 | u32 inta, handled = 0; | |
1391 | u32 inta_fh; | |
1392 | unsigned long flags; | |
d3175167 | 1393 | #ifdef CONFIG_IWLEGACY_DEBUG |
4bc85c13 WYG |
1394 | u32 inta_mask; |
1395 | #endif | |
1396 | ||
46bc8d4b | 1397 | spin_lock_irqsave(&il->lock, flags); |
4bc85c13 WYG |
1398 | |
1399 | /* Ack/clear/reset pending uCode interrupts. | |
1400 | * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, | |
1401 | * and will clear only when CSR_FH_INT_STATUS gets cleared. */ | |
841b2cca SG |
1402 | inta = _il_rd(il, CSR_INT); |
1403 | _il_wr(il, CSR_INT, inta); | |
4bc85c13 WYG |
1404 | |
1405 | /* Ack/clear/reset pending flow-handler (DMA) interrupts. | |
1406 | * Any new interrupts that happen after this, either while we're | |
1407 | * in this tasklet, or later, will show up in next ISR/tasklet. */ | |
841b2cca SG |
1408 | inta_fh = _il_rd(il, CSR_FH_INT_STATUS); |
1409 | _il_wr(il, CSR_FH_INT_STATUS, inta_fh); | |
4bc85c13 | 1410 | |
d3175167 | 1411 | #ifdef CONFIG_IWLEGACY_DEBUG |
46bc8d4b | 1412 | if (il_get_debug_level(il) & IL_DL_ISR) { |
4bc85c13 | 1413 | /* just for debug */ |
841b2cca | 1414 | inta_mask = _il_rd(il, CSR_INT_MASK); |
e7392364 SG |
1415 | D_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", inta, |
1416 | inta_mask, inta_fh); | |
4bc85c13 WYG |
1417 | } |
1418 | #endif | |
1419 | ||
46bc8d4b | 1420 | spin_unlock_irqrestore(&il->lock, flags); |
4bc85c13 WYG |
1421 | |
1422 | /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not | |
1423 | * atomic, make sure that inta covers all the interrupts that | |
1424 | * we've discovered, even if FH interrupt came in just after | |
1425 | * reading CSR_INT. */ | |
1426 | if (inta_fh & CSR39_FH_INT_RX_MASK) | |
1427 | inta |= CSR_INT_BIT_FH_RX; | |
1428 | if (inta_fh & CSR39_FH_INT_TX_MASK) | |
1429 | inta |= CSR_INT_BIT_FH_TX; | |
1430 | ||
1431 | /* Now service all interrupt bits discovered above. */ | |
1432 | if (inta & CSR_INT_BIT_HW_ERR) { | |
9406f797 | 1433 | IL_ERR("Hardware error detected. Restarting.\n"); |
4bc85c13 WYG |
1434 | |
1435 | /* Tell the device to stop sending interrupts */ | |
46bc8d4b | 1436 | il_disable_interrupts(il); |
4bc85c13 | 1437 | |
46bc8d4b SG |
1438 | il->isr_stats.hw++; |
1439 | il_irq_handle_error(il); | |
4bc85c13 WYG |
1440 | |
1441 | handled |= CSR_INT_BIT_HW_ERR; | |
1442 | ||
1443 | return; | |
1444 | } | |
d3175167 | 1445 | #ifdef CONFIG_IWLEGACY_DEBUG |
46bc8d4b | 1446 | if (il_get_debug_level(il) & (IL_DL_ISR)) { |
4bc85c13 WYG |
1447 | /* NIC fires this, but we don't use it, redundant with WAKEUP */ |
1448 | if (inta & CSR_INT_BIT_SCD) { | |
58de00a4 | 1449 | D_ISR("Scheduler finished to transmit " |
e7392364 | 1450 | "the frame/frames.\n"); |
46bc8d4b | 1451 | il->isr_stats.sch++; |
4bc85c13 WYG |
1452 | } |
1453 | ||
1454 | /* Alive notification via Rx interrupt will do the real work */ | |
1455 | if (inta & CSR_INT_BIT_ALIVE) { | |
58de00a4 | 1456 | D_ISR("Alive interrupt\n"); |
46bc8d4b | 1457 | il->isr_stats.alive++; |
4bc85c13 WYG |
1458 | } |
1459 | } | |
1460 | #endif | |
1461 | /* Safely ignore these bits for debug checks below */ | |
1462 | inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); | |
1463 | ||
1464 | /* Error detected by uCode */ | |
1465 | if (inta & CSR_INT_BIT_SW_ERR) { | |
e7392364 SG |
1466 | IL_ERR("Microcode SW error detected. " "Restarting 0x%X.\n", |
1467 | inta); | |
46bc8d4b SG |
1468 | il->isr_stats.sw++; |
1469 | il_irq_handle_error(il); | |
4bc85c13 WYG |
1470 | handled |= CSR_INT_BIT_SW_ERR; |
1471 | } | |
1472 | ||
1473 | /* uCode wakes up after power-down sleep */ | |
1474 | if (inta & CSR_INT_BIT_WAKEUP) { | |
58de00a4 | 1475 | D_ISR("Wakeup interrupt\n"); |
46bc8d4b SG |
1476 | il_rx_queue_update_write_ptr(il, &il->rxq); |
1477 | il_txq_update_write_ptr(il, &il->txq[0]); | |
1478 | il_txq_update_write_ptr(il, &il->txq[1]); | |
1479 | il_txq_update_write_ptr(il, &il->txq[2]); | |
1480 | il_txq_update_write_ptr(il, &il->txq[3]); | |
1481 | il_txq_update_write_ptr(il, &il->txq[4]); | |
1482 | il_txq_update_write_ptr(il, &il->txq[5]); | |
1483 | ||
1484 | il->isr_stats.wakeup++; | |
4bc85c13 WYG |
1485 | handled |= CSR_INT_BIT_WAKEUP; |
1486 | } | |
1487 | ||
1488 | /* All uCode command responses, including Tx command responses, | |
1489 | * Rx "responses" (frame-received notification), and other | |
1490 | * notifications from uCode come through here*/ | |
1491 | if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) { | |
46bc8d4b SG |
1492 | il3945_rx_handle(il); |
1493 | il->isr_stats.rx++; | |
4bc85c13 WYG |
1494 | handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX); |
1495 | } | |
1496 | ||
1497 | if (inta & CSR_INT_BIT_FH_TX) { | |
58de00a4 | 1498 | D_ISR("Tx interrupt\n"); |
46bc8d4b | 1499 | il->isr_stats.tx++; |
4bc85c13 | 1500 | |
841b2cca | 1501 | _il_wr(il, CSR_FH_INT_STATUS, (1 << 6)); |
e7392364 | 1502 | il_wr(il, FH39_TCSR_CREDIT(FH39_SRVC_CHNL), 0x0); |
4bc85c13 WYG |
1503 | handled |= CSR_INT_BIT_FH_TX; |
1504 | } | |
1505 | ||
1506 | if (inta & ~handled) { | |
9406f797 | 1507 | IL_ERR("Unhandled INTA bits 0x%08x\n", inta & ~handled); |
46bc8d4b | 1508 | il->isr_stats.unhandled++; |
4bc85c13 WYG |
1509 | } |
1510 | ||
46bc8d4b | 1511 | if (inta & ~il->inta_mask) { |
9406f797 | 1512 | IL_WARN("Disabled INTA bits 0x%08x were pending\n", |
e7392364 | 1513 | inta & ~il->inta_mask); |
53143a18 | 1514 | IL_WARN(" with inta_fh = 0x%08x\n", inta_fh); |
4bc85c13 WYG |
1515 | } |
1516 | ||
1517 | /* Re-enable all interrupts */ | |
1518 | /* only Re-enable if disabled by irq */ | |
a6766ccd | 1519 | if (test_bit(S_INT_ENABLED, &il->status)) |
46bc8d4b | 1520 | il_enable_interrupts(il); |
4bc85c13 | 1521 | |
d3175167 | 1522 | #ifdef CONFIG_IWLEGACY_DEBUG |
46bc8d4b | 1523 | if (il_get_debug_level(il) & (IL_DL_ISR)) { |
841b2cca SG |
1524 | inta = _il_rd(il, CSR_INT); |
1525 | inta_mask = _il_rd(il, CSR_INT_MASK); | |
1526 | inta_fh = _il_rd(il, CSR_FH_INT_STATUS); | |
58de00a4 | 1527 | D_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, " |
e7392364 | 1528 | "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags); |
4bc85c13 WYG |
1529 | } |
1530 | #endif | |
1531 | } | |
1532 | ||
e7392364 SG |
1533 | static int |
1534 | il3945_get_channels_for_scan(struct il_priv *il, enum ieee80211_band band, | |
1535 | u8 is_active, u8 n_probes, | |
1536 | struct il3945_scan_channel *scan_ch, | |
1537 | struct ieee80211_vif *vif) | |
4bc85c13 WYG |
1538 | { |
1539 | struct ieee80211_channel *chan; | |
1540 | const struct ieee80211_supported_band *sband; | |
e2ebc833 | 1541 | const struct il_channel_info *ch_info; |
4bc85c13 WYG |
1542 | u16 passive_dwell = 0; |
1543 | u16 active_dwell = 0; | |
1544 | int added, i; | |
1545 | ||
46bc8d4b | 1546 | sband = il_get_hw_mode(il, band); |
4bc85c13 WYG |
1547 | if (!sband) |
1548 | return 0; | |
1549 | ||
46bc8d4b SG |
1550 | active_dwell = il_get_active_dwell_time(il, band, n_probes); |
1551 | passive_dwell = il_get_passive_dwell_time(il, band, vif); | |
4bc85c13 WYG |
1552 | |
1553 | if (passive_dwell <= active_dwell) | |
1554 | passive_dwell = active_dwell + 1; | |
1555 | ||
46bc8d4b SG |
1556 | for (i = 0, added = 0; i < il->scan_request->n_channels; i++) { |
1557 | chan = il->scan_request->channels[i]; | |
4bc85c13 WYG |
1558 | |
1559 | if (chan->band != band) | |
1560 | continue; | |
1561 | ||
1562 | scan_ch->channel = chan->hw_value; | |
1563 | ||
e7392364 | 1564 | ch_info = il_get_channel_info(il, band, scan_ch->channel); |
e2ebc833 | 1565 | if (!il_is_channel_valid(ch_info)) { |
e7392364 | 1566 | D_SCAN("Channel %d is INVALID for this band.\n", |
be663ab6 | 1567 | scan_ch->channel); |
4bc85c13 WYG |
1568 | continue; |
1569 | } | |
1570 | ||
1571 | scan_ch->active_dwell = cpu_to_le16(active_dwell); | |
1572 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); | |
1573 | /* If passive , set up for auto-switch | |
1574 | * and use long active_dwell time. | |
1575 | */ | |
e2ebc833 | 1576 | if (!is_active || il_is_channel_passive(ch_info) || |
4bc85c13 WYG |
1577 | (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) { |
1578 | scan_ch->type = 0; /* passive */ | |
46bc8d4b | 1579 | if (IL_UCODE_API(il->ucode_ver) == 1) |
e7392364 SG |
1580 | scan_ch->active_dwell = |
1581 | cpu_to_le16(passive_dwell - 1); | |
4bc85c13 WYG |
1582 | } else { |
1583 | scan_ch->type = 1; /* active */ | |
1584 | } | |
1585 | ||
1586 | /* Set direct probe bits. These may be used both for active | |
1587 | * scan channels (probes gets sent right away), | |
1588 | * or for passive channels (probes get se sent only after | |
1589 | * hearing clear Rx packet).*/ | |
46bc8d4b | 1590 | if (IL_UCODE_API(il->ucode_ver) >= 2) { |
4bc85c13 | 1591 | if (n_probes) |
d3175167 | 1592 | scan_ch->type |= IL39_SCAN_PROBE_MASK(n_probes); |
4bc85c13 WYG |
1593 | } else { |
1594 | /* uCode v1 does not allow setting direct probe bits on | |
1595 | * passive channel. */ | |
1596 | if ((scan_ch->type & 1) && n_probes) | |
d3175167 | 1597 | scan_ch->type |= IL39_SCAN_PROBE_MASK(n_probes); |
4bc85c13 WYG |
1598 | } |
1599 | ||
1600 | /* Set txpower levels to defaults */ | |
1601 | scan_ch->tpc.dsp_atten = 110; | |
1602 | /* scan_pwr_info->tpc.dsp_atten; */ | |
1603 | ||
1604 | /*scan_pwr_info->tpc.tx_gain; */ | |
1605 | if (band == IEEE80211_BAND_5GHZ) | |
1606 | scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; | |
1607 | else { | |
1608 | scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); | |
1609 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use | |
1610 | * power level: | |
1611 | * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3; | |
1612 | */ | |
1613 | } | |
1614 | ||
e7392364 SG |
1615 | D_SCAN("Scanning %d [%s %d]\n", scan_ch->channel, |
1616 | (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE", | |
1617 | (scan_ch->type & 1) ? active_dwell : passive_dwell); | |
4bc85c13 WYG |
1618 | |
1619 | scan_ch++; | |
1620 | added++; | |
1621 | } | |
1622 | ||
58de00a4 | 1623 | D_SCAN("total channels to scan %d\n", added); |
4bc85c13 WYG |
1624 | return added; |
1625 | } | |
1626 | ||
e7392364 SG |
1627 | static void |
1628 | il3945_init_hw_rates(struct il_priv *il, struct ieee80211_rate *rates) | |
4bc85c13 WYG |
1629 | { |
1630 | int i; | |
1631 | ||
2eb05816 | 1632 | for (i = 0; i < RATE_COUNT_LEGACY; i++) { |
e2ebc833 | 1633 | rates[i].bitrate = il3945_rates[i].ieee * 5; |
e7392364 | 1634 | rates[i].hw_value = i; /* Rate scaling will work on idxes */ |
4bc85c13 WYG |
1635 | rates[i].hw_value_short = i; |
1636 | rates[i].flags = 0; | |
d3175167 | 1637 | if (i > IL39_LAST_OFDM_RATE || i < IL_FIRST_OFDM_RATE) { |
4bc85c13 WYG |
1638 | /* |
1639 | * If CCK != 1M then set short preamble rate flag. | |
1640 | */ | |
e7392364 SG |
1641 | rates[i].flags |= |
1642 | (il3945_rates[i].plcp == | |
1643 | 10) ? 0 : IEEE80211_RATE_SHORT_PREAMBLE; | |
4bc85c13 WYG |
1644 | } |
1645 | } | |
1646 | } | |
1647 | ||
1648 | /****************************************************************************** | |
1649 | * | |
1650 | * uCode download functions | |
1651 | * | |
1652 | ******************************************************************************/ | |
1653 | ||
e7392364 SG |
1654 | static void |
1655 | il3945_dealloc_ucode_pci(struct il_priv *il) | |
4bc85c13 | 1656 | { |
46bc8d4b SG |
1657 | il_free_fw_desc(il->pci_dev, &il->ucode_code); |
1658 | il_free_fw_desc(il->pci_dev, &il->ucode_data); | |
1659 | il_free_fw_desc(il->pci_dev, &il->ucode_data_backup); | |
1660 | il_free_fw_desc(il->pci_dev, &il->ucode_init); | |
1661 | il_free_fw_desc(il->pci_dev, &il->ucode_init_data); | |
1662 | il_free_fw_desc(il->pci_dev, &il->ucode_boot); | |
4bc85c13 WYG |
1663 | } |
1664 | ||
1665 | /** | |
e2ebc833 | 1666 | * il3945_verify_inst_full - verify runtime uCode image in card vs. host, |
4bc85c13 WYG |
1667 | * looking at all data. |
1668 | */ | |
e7392364 SG |
1669 | static int |
1670 | il3945_verify_inst_full(struct il_priv *il, __le32 * image, u32 len) | |
4bc85c13 WYG |
1671 | { |
1672 | u32 val; | |
1673 | u32 save_len = len; | |
1674 | int rc = 0; | |
1675 | u32 errcnt; | |
1676 | ||
58de00a4 | 1677 | D_INFO("ucode inst image size is %u\n", len); |
4bc85c13 | 1678 | |
e7392364 | 1679 | il_wr(il, HBUS_TARG_MEM_RADDR, IL39_RTC_INST_LOWER_BOUND); |
4bc85c13 WYG |
1680 | |
1681 | errcnt = 0; | |
1682 | for (; len > 0; len -= sizeof(u32), image++) { | |
1683 | /* read data comes through single port, auto-incr addr */ | |
1684 | /* NOTE: Use the debugless read so we don't flood kernel log | |
e2ebc833 | 1685 | * if IL_DL_IO is set */ |
1c8cae57 | 1686 | val = _il_rd(il, HBUS_TARG_MEM_RDAT); |
4bc85c13 | 1687 | if (val != le32_to_cpu(*image)) { |
9406f797 | 1688 | IL_ERR("uCode INST section is invalid at " |
e7392364 SG |
1689 | "offset 0x%x, is 0x%x, s/b 0x%x\n", |
1690 | save_len - len, val, le32_to_cpu(*image)); | |
4bc85c13 WYG |
1691 | rc = -EIO; |
1692 | errcnt++; | |
1693 | if (errcnt >= 20) | |
1694 | break; | |
1695 | } | |
1696 | } | |
1697 | ||
4bc85c13 | 1698 | if (!errcnt) |
e7392364 | 1699 | D_INFO("ucode image in INSTRUCTION memory is good\n"); |
4bc85c13 WYG |
1700 | |
1701 | return rc; | |
1702 | } | |
1703 | ||
4bc85c13 | 1704 | /** |
e2ebc833 | 1705 | * il3945_verify_inst_sparse - verify runtime uCode image in card vs. host, |
4bc85c13 WYG |
1706 | * using sample data 100 bytes apart. If these sample points are good, |
1707 | * it's a pretty good bet that everything between them is good, too. | |
1708 | */ | |
e7392364 SG |
1709 | static int |
1710 | il3945_verify_inst_sparse(struct il_priv *il, __le32 * image, u32 len) | |
4bc85c13 WYG |
1711 | { |
1712 | u32 val; | |
1713 | int rc = 0; | |
1714 | u32 errcnt = 0; | |
1715 | u32 i; | |
1716 | ||
58de00a4 | 1717 | D_INFO("ucode inst image size is %u\n", len); |
4bc85c13 | 1718 | |
e7392364 | 1719 | for (i = 0; i < len; i += 100, image += 100 / sizeof(u32)) { |
4bc85c13 WYG |
1720 | /* read data comes through single port, auto-incr addr */ |
1721 | /* NOTE: Use the debugless read so we don't flood kernel log | |
e2ebc833 | 1722 | * if IL_DL_IO is set */ |
e7392364 | 1723 | il_wr(il, HBUS_TARG_MEM_RADDR, i + IL39_RTC_INST_LOWER_BOUND); |
1c8cae57 | 1724 | val = _il_rd(il, HBUS_TARG_MEM_RDAT); |
4bc85c13 | 1725 | if (val != le32_to_cpu(*image)) { |
e7392364 | 1726 | #if 0 /* Enable this if you want to see details */ |
9406f797 | 1727 | IL_ERR("uCode INST section is invalid at " |
e7392364 SG |
1728 | "offset 0x%x, is 0x%x, s/b 0x%x\n", i, val, |
1729 | *image); | |
4bc85c13 WYG |
1730 | #endif |
1731 | rc = -EIO; | |
1732 | errcnt++; | |
1733 | if (errcnt >= 3) | |
1734 | break; | |
1735 | } | |
1736 | } | |
1737 | ||
1738 | return rc; | |
1739 | } | |
1740 | ||
4bc85c13 | 1741 | /** |
e2ebc833 | 1742 | * il3945_verify_ucode - determine which instruction image is in SRAM, |
4bc85c13 WYG |
1743 | * and verify its contents |
1744 | */ | |
e7392364 SG |
1745 | static int |
1746 | il3945_verify_ucode(struct il_priv *il) | |
4bc85c13 WYG |
1747 | { |
1748 | __le32 *image; | |
1749 | u32 len; | |
1750 | int rc = 0; | |
1751 | ||
1752 | /* Try bootstrap */ | |
e7392364 | 1753 | image = (__le32 *) il->ucode_boot.v_addr; |
46bc8d4b SG |
1754 | len = il->ucode_boot.len; |
1755 | rc = il3945_verify_inst_sparse(il, image, len); | |
4bc85c13 | 1756 | if (rc == 0) { |
58de00a4 | 1757 | D_INFO("Bootstrap uCode is good in inst SRAM\n"); |
4bc85c13 WYG |
1758 | return 0; |
1759 | } | |
1760 | ||
1761 | /* Try initialize */ | |
e7392364 | 1762 | image = (__le32 *) il->ucode_init.v_addr; |
46bc8d4b SG |
1763 | len = il->ucode_init.len; |
1764 | rc = il3945_verify_inst_sparse(il, image, len); | |
4bc85c13 | 1765 | if (rc == 0) { |
58de00a4 | 1766 | D_INFO("Initialize uCode is good in inst SRAM\n"); |
4bc85c13 WYG |
1767 | return 0; |
1768 | } | |
1769 | ||
1770 | /* Try runtime/protocol */ | |
e7392364 | 1771 | image = (__le32 *) il->ucode_code.v_addr; |
46bc8d4b SG |
1772 | len = il->ucode_code.len; |
1773 | rc = il3945_verify_inst_sparse(il, image, len); | |
4bc85c13 | 1774 | if (rc == 0) { |
58de00a4 | 1775 | D_INFO("Runtime uCode is good in inst SRAM\n"); |
4bc85c13 WYG |
1776 | return 0; |
1777 | } | |
1778 | ||
9406f797 | 1779 | IL_ERR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n"); |
4bc85c13 WYG |
1780 | |
1781 | /* Since nothing seems to match, show first several data entries in | |
1782 | * instruction SRAM, so maybe visual inspection will give a clue. | |
1783 | * Selection of bootstrap image (vs. other images) is arbitrary. */ | |
e7392364 | 1784 | image = (__le32 *) il->ucode_boot.v_addr; |
46bc8d4b SG |
1785 | len = il->ucode_boot.len; |
1786 | rc = il3945_verify_inst_full(il, image, len); | |
4bc85c13 WYG |
1787 | |
1788 | return rc; | |
1789 | } | |
1790 | ||
e7392364 SG |
1791 | static void |
1792 | il3945_nic_start(struct il_priv *il) | |
4bc85c13 WYG |
1793 | { |
1794 | /* Remove all resets to allow NIC to operate */ | |
841b2cca | 1795 | _il_wr(il, CSR_RESET, 0); |
4bc85c13 WYG |
1796 | } |
1797 | ||
d3175167 | 1798 | #define IL3945_UCODE_GET(item) \ |
e2ebc833 | 1799 | static u32 il3945_ucode_get_##item(const struct il_ucode_header *ucode)\ |
4bc85c13 | 1800 | { \ |
be663ab6 | 1801 | return le32_to_cpu(ucode->v1.item); \ |
4bc85c13 WYG |
1802 | } |
1803 | ||
e7392364 SG |
1804 | static u32 |
1805 | il3945_ucode_get_header_size(u32 api_ver) | |
4bc85c13 WYG |
1806 | { |
1807 | return 24; | |
1808 | } | |
1809 | ||
e7392364 SG |
1810 | static u8 * |
1811 | il3945_ucode_get_data(const struct il_ucode_header *ucode) | |
4bc85c13 | 1812 | { |
be663ab6 | 1813 | return (u8 *) ucode->v1.data; |
4bc85c13 WYG |
1814 | } |
1815 | ||
d3175167 SG |
1816 | IL3945_UCODE_GET(inst_size); |
1817 | IL3945_UCODE_GET(data_size); | |
1818 | IL3945_UCODE_GET(init_size); | |
1819 | IL3945_UCODE_GET(init_data_size); | |
1820 | IL3945_UCODE_GET(boot_size); | |
4bc85c13 WYG |
1821 | |
1822 | /** | |
e2ebc833 | 1823 | * il3945_read_ucode - Read uCode images from disk file. |
4bc85c13 WYG |
1824 | * |
1825 | * Copy into buffers for card to fetch via bus-mastering | |
1826 | */ | |
e7392364 SG |
1827 | static int |
1828 | il3945_read_ucode(struct il_priv *il) | |
4bc85c13 | 1829 | { |
e2ebc833 | 1830 | const struct il_ucode_header *ucode; |
0c2c8852 | 1831 | int ret = -EINVAL, idx; |
4bc85c13 WYG |
1832 | const struct firmware *ucode_raw; |
1833 | /* firmware file name contains uCode/driver compatibility version */ | |
46bc8d4b SG |
1834 | const char *name_pre = il->cfg->fw_name_pre; |
1835 | const unsigned int api_max = il->cfg->ucode_api_max; | |
1836 | const unsigned int api_min = il->cfg->ucode_api_min; | |
4bc85c13 WYG |
1837 | char buf[25]; |
1838 | u8 *src; | |
1839 | size_t len; | |
1840 | u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size; | |
1841 | ||
1842 | /* Ask kernel firmware_class module to get the boot firmware off disk. | |
1843 | * request_firmware() is synchronous, file is in memory on return. */ | |
0c2c8852 SG |
1844 | for (idx = api_max; idx >= api_min; idx--) { |
1845 | sprintf(buf, "%s%u%s", name_pre, idx, ".ucode"); | |
46bc8d4b | 1846 | ret = request_firmware(&ucode_raw, buf, &il->pci_dev->dev); |
4bc85c13 | 1847 | if (ret < 0) { |
e7392364 | 1848 | IL_ERR("%s firmware file req failed: %d\n", buf, ret); |
4bc85c13 WYG |
1849 | if (ret == -ENOENT) |
1850 | continue; | |
1851 | else | |
1852 | goto error; | |
1853 | } else { | |
0c2c8852 | 1854 | if (idx < api_max) |
9406f797 | 1855 | IL_ERR("Loaded firmware %s, " |
e7392364 SG |
1856 | "which is deprecated. " |
1857 | " Please use API v%u instead.\n", buf, | |
1858 | api_max); | |
58de00a4 | 1859 | D_INFO("Got firmware '%s' file " |
e7392364 | 1860 | "(%zd bytes) from disk\n", buf, ucode_raw->size); |
4bc85c13 WYG |
1861 | break; |
1862 | } | |
1863 | } | |
1864 | ||
1865 | if (ret < 0) | |
1866 | goto error; | |
1867 | ||
1868 | /* Make sure that we got at least our header! */ | |
e7392364 | 1869 | if (ucode_raw->size < il3945_ucode_get_header_size(1)) { |
9406f797 | 1870 | IL_ERR("File size way too small!\n"); |
4bc85c13 WYG |
1871 | ret = -EINVAL; |
1872 | goto err_release; | |
1873 | } | |
1874 | ||
1875 | /* Data from ucode file: header followed by uCode images */ | |
e2ebc833 | 1876 | ucode = (struct il_ucode_header *)ucode_raw->data; |
4bc85c13 | 1877 | |
46bc8d4b SG |
1878 | il->ucode_ver = le32_to_cpu(ucode->ver); |
1879 | api_ver = IL_UCODE_API(il->ucode_ver); | |
e2ebc833 SG |
1880 | inst_size = il3945_ucode_get_inst_size(ucode); |
1881 | data_size = il3945_ucode_get_data_size(ucode); | |
1882 | init_size = il3945_ucode_get_init_size(ucode); | |
1883 | init_data_size = il3945_ucode_get_init_data_size(ucode); | |
1884 | boot_size = il3945_ucode_get_boot_size(ucode); | |
1885 | src = il3945_ucode_get_data(ucode); | |
4bc85c13 WYG |
1886 | |
1887 | /* api_ver should match the api version forming part of the | |
1888 | * firmware filename ... but we don't check for that and only rely | |
1889 | * on the API version read from firmware header from here on forward */ | |
1890 | ||
1891 | if (api_ver < api_min || api_ver > api_max) { | |
9406f797 | 1892 | IL_ERR("Driver unable to support your firmware API. " |
e7392364 SG |
1893 | "Driver supports v%u, firmware is v%u.\n", api_max, |
1894 | api_ver); | |
46bc8d4b | 1895 | il->ucode_ver = 0; |
4bc85c13 WYG |
1896 | ret = -EINVAL; |
1897 | goto err_release; | |
1898 | } | |
1899 | if (api_ver != api_max) | |
9406f797 | 1900 | IL_ERR("Firmware has old API version. Expected %u, " |
e7392364 SG |
1901 | "got %u. New firmware can be obtained " |
1902 | "from http://www.intellinuxwireless.org.\n", api_max, | |
1903 | api_ver); | |
4bc85c13 | 1904 | |
9406f797 | 1905 | IL_INFO("loaded firmware version %u.%u.%u.%u\n", |
e7392364 SG |
1906 | IL_UCODE_MAJOR(il->ucode_ver), IL_UCODE_MINOR(il->ucode_ver), |
1907 | IL_UCODE_API(il->ucode_ver), IL_UCODE_SERIAL(il->ucode_ver)); | |
46bc8d4b | 1908 | |
e7392364 SG |
1909 | snprintf(il->hw->wiphy->fw_version, sizeof(il->hw->wiphy->fw_version), |
1910 | "%u.%u.%u.%u", IL_UCODE_MAJOR(il->ucode_ver), | |
1911 | IL_UCODE_MINOR(il->ucode_ver), IL_UCODE_API(il->ucode_ver), | |
1912 | IL_UCODE_SERIAL(il->ucode_ver)); | |
4bc85c13 | 1913 | |
e7392364 SG |
1914 | D_INFO("f/w package hdr ucode version raw = 0x%x\n", il->ucode_ver); |
1915 | D_INFO("f/w package hdr runtime inst size = %u\n", inst_size); | |
1916 | D_INFO("f/w package hdr runtime data size = %u\n", data_size); | |
1917 | D_INFO("f/w package hdr init inst size = %u\n", init_size); | |
1918 | D_INFO("f/w package hdr init data size = %u\n", init_data_size); | |
1919 | D_INFO("f/w package hdr boot inst size = %u\n", boot_size); | |
4bc85c13 WYG |
1920 | |
1921 | /* Verify size of file vs. image size info in file's header */ | |
e7392364 SG |
1922 | if (ucode_raw->size != |
1923 | il3945_ucode_get_header_size(api_ver) + inst_size + data_size + | |
1924 | init_size + init_data_size + boot_size) { | |
4bc85c13 | 1925 | |
e7392364 SG |
1926 | D_INFO("uCode file size %zd does not match expected size\n", |
1927 | ucode_raw->size); | |
4bc85c13 WYG |
1928 | ret = -EINVAL; |
1929 | goto err_release; | |
1930 | } | |
1931 | ||
1932 | /* Verify that uCode images will fit in card's SRAM */ | |
d3175167 | 1933 | if (inst_size > IL39_MAX_INST_SIZE) { |
e7392364 | 1934 | D_INFO("uCode instr len %d too large to fit in\n", inst_size); |
4bc85c13 WYG |
1935 | ret = -EINVAL; |
1936 | goto err_release; | |
1937 | } | |
1938 | ||
d3175167 | 1939 | if (data_size > IL39_MAX_DATA_SIZE) { |
e7392364 | 1940 | D_INFO("uCode data len %d too large to fit in\n", data_size); |
4bc85c13 WYG |
1941 | ret = -EINVAL; |
1942 | goto err_release; | |
1943 | } | |
d3175167 | 1944 | if (init_size > IL39_MAX_INST_SIZE) { |
e7392364 SG |
1945 | D_INFO("uCode init instr len %d too large to fit in\n", |
1946 | init_size); | |
4bc85c13 WYG |
1947 | ret = -EINVAL; |
1948 | goto err_release; | |
1949 | } | |
d3175167 | 1950 | if (init_data_size > IL39_MAX_DATA_SIZE) { |
e7392364 SG |
1951 | D_INFO("uCode init data len %d too large to fit in\n", |
1952 | init_data_size); | |
4bc85c13 WYG |
1953 | ret = -EINVAL; |
1954 | goto err_release; | |
1955 | } | |
d3175167 | 1956 | if (boot_size > IL39_MAX_BSM_SIZE) { |
e7392364 SG |
1957 | D_INFO("uCode boot instr len %d too large to fit in\n", |
1958 | boot_size); | |
4bc85c13 WYG |
1959 | ret = -EINVAL; |
1960 | goto err_release; | |
1961 | } | |
1962 | ||
1963 | /* Allocate ucode buffers for card's bus-master loading ... */ | |
1964 | ||
1965 | /* Runtime instructions and 2 copies of data: | |
1966 | * 1) unmodified from disk | |
1967 | * 2) backup cache for save/restore during power-downs */ | |
46bc8d4b SG |
1968 | il->ucode_code.len = inst_size; |
1969 | il_alloc_fw_desc(il->pci_dev, &il->ucode_code); | |
4bc85c13 | 1970 | |
46bc8d4b SG |
1971 | il->ucode_data.len = data_size; |
1972 | il_alloc_fw_desc(il->pci_dev, &il->ucode_data); | |
4bc85c13 | 1973 | |
46bc8d4b SG |
1974 | il->ucode_data_backup.len = data_size; |
1975 | il_alloc_fw_desc(il->pci_dev, &il->ucode_data_backup); | |
4bc85c13 | 1976 | |
46bc8d4b SG |
1977 | if (!il->ucode_code.v_addr || !il->ucode_data.v_addr || |
1978 | !il->ucode_data_backup.v_addr) | |
4bc85c13 WYG |
1979 | goto err_pci_alloc; |
1980 | ||
1981 | /* Initialization instructions and data */ | |
1982 | if (init_size && init_data_size) { | |
46bc8d4b SG |
1983 | il->ucode_init.len = init_size; |
1984 | il_alloc_fw_desc(il->pci_dev, &il->ucode_init); | |
4bc85c13 | 1985 | |
46bc8d4b SG |
1986 | il->ucode_init_data.len = init_data_size; |
1987 | il_alloc_fw_desc(il->pci_dev, &il->ucode_init_data); | |
4bc85c13 | 1988 | |
46bc8d4b | 1989 | if (!il->ucode_init.v_addr || !il->ucode_init_data.v_addr) |
4bc85c13 WYG |
1990 | goto err_pci_alloc; |
1991 | } | |
1992 | ||
1993 | /* Bootstrap (instructions only, no data) */ | |
1994 | if (boot_size) { | |
46bc8d4b SG |
1995 | il->ucode_boot.len = boot_size; |
1996 | il_alloc_fw_desc(il->pci_dev, &il->ucode_boot); | |
4bc85c13 | 1997 | |
46bc8d4b | 1998 | if (!il->ucode_boot.v_addr) |
4bc85c13 WYG |
1999 | goto err_pci_alloc; |
2000 | } | |
2001 | ||
2002 | /* Copy images into buffers for card's bus-master reads ... */ | |
2003 | ||
2004 | /* Runtime instructions (first block of data in file) */ | |
2005 | len = inst_size; | |
e7392364 | 2006 | D_INFO("Copying (but not loading) uCode instr len %zd\n", len); |
46bc8d4b | 2007 | memcpy(il->ucode_code.v_addr, src, len); |
4bc85c13 WYG |
2008 | src += len; |
2009 | ||
58de00a4 | 2010 | D_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n", |
e7392364 | 2011 | il->ucode_code.v_addr, (u32) il->ucode_code.p_addr); |
4bc85c13 WYG |
2012 | |
2013 | /* Runtime data (2nd block) | |
e2ebc833 | 2014 | * NOTE: Copy into backup buffer will be done in il3945_up() */ |
4bc85c13 | 2015 | len = data_size; |
e7392364 | 2016 | D_INFO("Copying (but not loading) uCode data len %zd\n", len); |
46bc8d4b SG |
2017 | memcpy(il->ucode_data.v_addr, src, len); |
2018 | memcpy(il->ucode_data_backup.v_addr, src, len); | |
4bc85c13 WYG |
2019 | src += len; |
2020 | ||
2021 | /* Initialization instructions (3rd block) */ | |
2022 | if (init_size) { | |
2023 | len = init_size; | |
e7392364 | 2024 | D_INFO("Copying (but not loading) init instr len %zd\n", len); |
46bc8d4b | 2025 | memcpy(il->ucode_init.v_addr, src, len); |
4bc85c13 WYG |
2026 | src += len; |
2027 | } | |
2028 | ||
2029 | /* Initialization data (4th block) */ | |
2030 | if (init_data_size) { | |
2031 | len = init_data_size; | |
e7392364 | 2032 | D_INFO("Copying (but not loading) init data len %zd\n", len); |
46bc8d4b | 2033 | memcpy(il->ucode_init_data.v_addr, src, len); |
4bc85c13 WYG |
2034 | src += len; |
2035 | } | |
2036 | ||
2037 | /* Bootstrap instructions (5th block) */ | |
2038 | len = boot_size; | |
e7392364 | 2039 | D_INFO("Copying (but not loading) boot instr len %zd\n", len); |
46bc8d4b | 2040 | memcpy(il->ucode_boot.v_addr, src, len); |
4bc85c13 WYG |
2041 | |
2042 | /* We have our copies now, allow OS release its copies */ | |
2043 | release_firmware(ucode_raw); | |
2044 | return 0; | |
2045 | ||
e7392364 | 2046 | err_pci_alloc: |
9406f797 | 2047 | IL_ERR("failed to allocate pci memory\n"); |
4bc85c13 | 2048 | ret = -ENOMEM; |
46bc8d4b | 2049 | il3945_dealloc_ucode_pci(il); |
4bc85c13 | 2050 | |
e7392364 | 2051 | err_release: |
4bc85c13 WYG |
2052 | release_firmware(ucode_raw); |
2053 | ||
e7392364 | 2054 | error: |
4bc85c13 WYG |
2055 | return ret; |
2056 | } | |
2057 | ||
4bc85c13 | 2058 | /** |
e2ebc833 | 2059 | * il3945_set_ucode_ptrs - Set uCode address location |
4bc85c13 WYG |
2060 | * |
2061 | * Tell initialization uCode where to find runtime uCode. | |
2062 | * | |
2063 | * BSM registers initially contain pointers to initialization uCode. | |
2064 | * We need to replace them to load runtime uCode inst and data, | |
2065 | * and to save runtime data when powering down. | |
2066 | */ | |
e7392364 SG |
2067 | static int |
2068 | il3945_set_ucode_ptrs(struct il_priv *il) | |
4bc85c13 WYG |
2069 | { |
2070 | dma_addr_t pinst; | |
2071 | dma_addr_t pdata; | |
2072 | ||
2073 | /* bits 31:0 for 3945 */ | |
46bc8d4b SG |
2074 | pinst = il->ucode_code.p_addr; |
2075 | pdata = il->ucode_data_backup.p_addr; | |
4bc85c13 WYG |
2076 | |
2077 | /* Tell bootstrap uCode where to find image to load */ | |
db54eb57 SG |
2078 | il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst); |
2079 | il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata); | |
e7392364 | 2080 | il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, il->ucode_data.len); |
4bc85c13 WYG |
2081 | |
2082 | /* Inst byte count must be last to set up, bit 31 signals uCode | |
2083 | * that all new ptr/size info is in place */ | |
db54eb57 | 2084 | il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG, |
e7392364 | 2085 | il->ucode_code.len | BSM_DRAM_INST_LOAD); |
4bc85c13 | 2086 | |
58de00a4 | 2087 | D_INFO("Runtime uCode pointers are set.\n"); |
4bc85c13 WYG |
2088 | |
2089 | return 0; | |
2090 | } | |
2091 | ||
2092 | /** | |
4d69c752 | 2093 | * il3945_init_alive_start - Called after N_ALIVE notification received |
4bc85c13 | 2094 | * |
4d69c752 | 2095 | * Called after N_ALIVE notification received from "initialize" uCode. |
4bc85c13 WYG |
2096 | * |
2097 | * Tell "initialize" uCode to go ahead and load the runtime uCode. | |
2098 | */ | |
e7392364 SG |
2099 | static void |
2100 | il3945_init_alive_start(struct il_priv *il) | |
4bc85c13 WYG |
2101 | { |
2102 | /* Check alive response for "valid" sign from uCode */ | |
46bc8d4b | 2103 | if (il->card_alive_init.is_valid != UCODE_VALID_OK) { |
4bc85c13 WYG |
2104 | /* We had an error bringing up the hardware, so take it |
2105 | * all the way back down so we can try again */ | |
58de00a4 | 2106 | D_INFO("Initialize Alive failed.\n"); |
4bc85c13 WYG |
2107 | goto restart; |
2108 | } | |
2109 | ||
2110 | /* Bootstrap uCode has loaded initialize uCode ... verify inst image. | |
2111 | * This is a paranoid check, because we would not have gotten the | |
2112 | * "initialize" alive if code weren't properly loaded. */ | |
46bc8d4b | 2113 | if (il3945_verify_ucode(il)) { |
4bc85c13 WYG |
2114 | /* Runtime instruction load was bad; |
2115 | * take it all the way back down so we can try again */ | |
58de00a4 | 2116 | D_INFO("Bad \"initialize\" uCode load.\n"); |
4bc85c13 WYG |
2117 | goto restart; |
2118 | } | |
2119 | ||
2120 | /* Send pointers to protocol/runtime uCode image ... init code will | |
2121 | * load and launch runtime uCode, which will send us another "Alive" | |
2122 | * notification. */ | |
58de00a4 | 2123 | D_INFO("Initialization Alive received.\n"); |
46bc8d4b | 2124 | if (il3945_set_ucode_ptrs(il)) { |
4bc85c13 WYG |
2125 | /* Runtime instruction load won't happen; |
2126 | * take it all the way back down so we can try again */ | |
58de00a4 | 2127 | D_INFO("Couldn't set up uCode pointers.\n"); |
4bc85c13 WYG |
2128 | goto restart; |
2129 | } | |
2130 | return; | |
2131 | ||
e7392364 | 2132 | restart: |
46bc8d4b | 2133 | queue_work(il->workqueue, &il->restart); |
4bc85c13 WYG |
2134 | } |
2135 | ||
2136 | /** | |
4d69c752 | 2137 | * il3945_alive_start - called after N_ALIVE notification received |
4bc85c13 | 2138 | * from protocol/runtime uCode (initialization uCode's |
e2ebc833 | 2139 | * Alive gets handled by il3945_init_alive_start()). |
4bc85c13 | 2140 | */ |
e7392364 SG |
2141 | static void |
2142 | il3945_alive_start(struct il_priv *il) | |
4bc85c13 WYG |
2143 | { |
2144 | int thermal_spin = 0; | |
2145 | u32 rfkill; | |
4bc85c13 | 2146 | |
58de00a4 | 2147 | D_INFO("Runtime Alive received.\n"); |
4bc85c13 | 2148 | |
46bc8d4b | 2149 | if (il->card_alive.is_valid != UCODE_VALID_OK) { |
4bc85c13 WYG |
2150 | /* We had an error bringing up the hardware, so take it |
2151 | * all the way back down so we can try again */ | |
58de00a4 | 2152 | D_INFO("Alive failed.\n"); |
4bc85c13 WYG |
2153 | goto restart; |
2154 | } | |
2155 | ||
2156 | /* Initialize uCode has loaded Runtime uCode ... verify inst image. | |
2157 | * This is a paranoid check, because we would not have gotten the | |
2158 | * "runtime" alive if code weren't properly loaded. */ | |
46bc8d4b | 2159 | if (il3945_verify_ucode(il)) { |
4bc85c13 WYG |
2160 | /* Runtime instruction load was bad; |
2161 | * take it all the way back down so we can try again */ | |
58de00a4 | 2162 | D_INFO("Bad runtime uCode load.\n"); |
4bc85c13 WYG |
2163 | goto restart; |
2164 | } | |
2165 | ||
db54eb57 | 2166 | rfkill = il_rd_prph(il, APMG_RFKILL_REG); |
58de00a4 | 2167 | D_INFO("RFKILL status: 0x%x\n", rfkill); |
4bc85c13 WYG |
2168 | |
2169 | if (rfkill & 0x1) { | |
a6766ccd | 2170 | clear_bit(S_RF_KILL_HW, &il->status); |
4bc85c13 WYG |
2171 | /* if RFKILL is not on, then wait for thermal |
2172 | * sensor in adapter to kick in */ | |
46bc8d4b | 2173 | while (il3945_hw_get_temperature(il) == 0) { |
4bc85c13 WYG |
2174 | thermal_spin++; |
2175 | udelay(10); | |
2176 | } | |
2177 | ||
2178 | if (thermal_spin) | |
58de00a4 | 2179 | D_INFO("Thermal calibration took %dus\n", |
e7392364 | 2180 | thermal_spin * 10); |
4bc85c13 | 2181 | } else |
a6766ccd | 2182 | set_bit(S_RF_KILL_HW, &il->status); |
4bc85c13 WYG |
2183 | |
2184 | /* After the ALIVE response, we can send commands to 3945 uCode */ | |
a6766ccd | 2185 | set_bit(S_ALIVE, &il->status); |
4bc85c13 WYG |
2186 | |
2187 | /* Enable watchdog to monitor the driver tx queues */ | |
46bc8d4b | 2188 | il_setup_watchdog(il); |
4bc85c13 | 2189 | |
46bc8d4b | 2190 | if (il_is_rfkill(il)) |
4bc85c13 WYG |
2191 | return; |
2192 | ||
46bc8d4b | 2193 | ieee80211_wake_queues(il->hw); |
4bc85c13 | 2194 | |
2eb05816 | 2195 | il->active_rate = RATES_MASK_3945; |
4bc85c13 | 2196 | |
46bc8d4b | 2197 | il_power_update_mode(il, true); |
4bc85c13 | 2198 | |
7c2cde2e | 2199 | if (il_is_associated(il)) { |
e2ebc833 | 2200 | struct il3945_rxon_cmd *active_rxon = |
c8b03958 | 2201 | (struct il3945_rxon_cmd *)(&il->active); |
4bc85c13 | 2202 | |
c8b03958 | 2203 | il->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
4bc85c13 WYG |
2204 | active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
2205 | } else { | |
2206 | /* Initialize our rx_config data */ | |
83007196 | 2207 | il_connection_init_rx_config(il); |
4bc85c13 WYG |
2208 | } |
2209 | ||
2210 | /* Configure Bluetooth device coexistence support */ | |
46bc8d4b | 2211 | il_send_bt_config(il); |
4bc85c13 | 2212 | |
a6766ccd | 2213 | set_bit(S_READY, &il->status); |
4bc85c13 WYG |
2214 | |
2215 | /* Configure the adapter for unassociated operation */ | |
83007196 | 2216 | il3945_commit_rxon(il); |
4bc85c13 | 2217 | |
46bc8d4b | 2218 | il3945_reg_txpower_periodic(il); |
4bc85c13 | 2219 | |
58de00a4 | 2220 | D_INFO("ALIVE processing complete.\n"); |
46bc8d4b | 2221 | wake_up(&il->wait_command_queue); |
4bc85c13 WYG |
2222 | |
2223 | return; | |
2224 | ||
e7392364 | 2225 | restart: |
46bc8d4b | 2226 | queue_work(il->workqueue, &il->restart); |
4bc85c13 WYG |
2227 | } |
2228 | ||
46bc8d4b | 2229 | static void il3945_cancel_deferred_work(struct il_priv *il); |
4bc85c13 | 2230 | |
e7392364 SG |
2231 | static void |
2232 | __il3945_down(struct il_priv *il) | |
4bc85c13 WYG |
2233 | { |
2234 | unsigned long flags; | |
2235 | int exit_pending; | |
2236 | ||
58de00a4 | 2237 | D_INFO(DRV_NAME " is going down\n"); |
4bc85c13 | 2238 | |
46bc8d4b | 2239 | il_scan_cancel_timeout(il, 200); |
4bc85c13 | 2240 | |
a6766ccd | 2241 | exit_pending = test_and_set_bit(S_EXIT_PENDING, &il->status); |
4bc85c13 | 2242 | |
a6766ccd | 2243 | /* Stop TX queues watchdog. We need to have S_EXIT_PENDING bit set |
4bc85c13 | 2244 | * to prevent rearm timer */ |
46bc8d4b | 2245 | del_timer_sync(&il->watchdog); |
4bc85c13 WYG |
2246 | |
2247 | /* Station information will now be cleared in device */ | |
83007196 | 2248 | il_clear_ucode_stations(il); |
46bc8d4b SG |
2249 | il_dealloc_bcast_stations(il); |
2250 | il_clear_driver_stations(il); | |
4bc85c13 WYG |
2251 | |
2252 | /* Unblock any waiting calls */ | |
46bc8d4b | 2253 | wake_up_all(&il->wait_command_queue); |
4bc85c13 WYG |
2254 | |
2255 | /* Wipe out the EXIT_PENDING status bit if we are not actually | |
2256 | * exiting the module */ | |
2257 | if (!exit_pending) | |
a6766ccd | 2258 | clear_bit(S_EXIT_PENDING, &il->status); |
4bc85c13 WYG |
2259 | |
2260 | /* stop and reset the on-board processor */ | |
841b2cca | 2261 | _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
4bc85c13 WYG |
2262 | |
2263 | /* tell the device to stop sending interrupts */ | |
46bc8d4b SG |
2264 | spin_lock_irqsave(&il->lock, flags); |
2265 | il_disable_interrupts(il); | |
2266 | spin_unlock_irqrestore(&il->lock, flags); | |
2267 | il3945_synchronize_irq(il); | |
4bc85c13 | 2268 | |
46bc8d4b SG |
2269 | if (il->mac80211_registered) |
2270 | ieee80211_stop_queues(il->hw); | |
4bc85c13 | 2271 | |
e2ebc833 | 2272 | /* If we have not previously called il3945_init() then |
4bc85c13 | 2273 | * clear all bits but the RF Kill bits and return */ |
46bc8d4b | 2274 | if (!il_is_init(il)) { |
e7392364 SG |
2275 | il->status = |
2276 | test_bit(S_RF_KILL_HW, | |
2277 | &il-> | |
2278 | status) << S_RF_KILL_HW | | |
2279 | test_bit(S_GEO_CONFIGURED, | |
2280 | &il-> | |
2281 | status) << S_GEO_CONFIGURED | | |
2282 | test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING; | |
4bc85c13 WYG |
2283 | goto exit; |
2284 | } | |
2285 | ||
2286 | /* ...otherwise clear out all the status bits but the RF Kill | |
2287 | * bit and continue taking the NIC down. */ | |
e7392364 SG |
2288 | il->status &= |
2289 | test_bit(S_RF_KILL_HW, | |
2290 | &il->status) << S_RF_KILL_HW | test_bit(S_GEO_CONFIGURED, | |
2291 | &il-> | |
2292 | status) << | |
2293 | S_GEO_CONFIGURED | test_bit(S_FW_ERROR, | |
2294 | &il-> | |
2295 | status) << S_FW_ERROR | | |
2296 | test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING; | |
4bc85c13 | 2297 | |
46bc8d4b SG |
2298 | il3945_hw_txq_ctx_stop(il); |
2299 | il3945_hw_rxq_stop(il); | |
4bc85c13 WYG |
2300 | |
2301 | /* Power-down device's busmaster DMA clocks */ | |
db54eb57 | 2302 | il_wr_prph(il, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT); |
4bc85c13 WYG |
2303 | udelay(5); |
2304 | ||
2305 | /* Stop the device, and put it in low power state */ | |
46bc8d4b | 2306 | il_apm_stop(il); |
4bc85c13 | 2307 | |
e7392364 | 2308 | exit: |
46bc8d4b | 2309 | memset(&il->card_alive, 0, sizeof(struct il_alive_resp)); |
4bc85c13 | 2310 | |
46bc8d4b SG |
2311 | if (il->beacon_skb) |
2312 | dev_kfree_skb(il->beacon_skb); | |
2313 | il->beacon_skb = NULL; | |
4bc85c13 WYG |
2314 | |
2315 | /* clear out any free frames */ | |
46bc8d4b | 2316 | il3945_clear_free_frames(il); |
4bc85c13 WYG |
2317 | } |
2318 | ||
e7392364 SG |
2319 | static void |
2320 | il3945_down(struct il_priv *il) | |
4bc85c13 | 2321 | { |
46bc8d4b SG |
2322 | mutex_lock(&il->mutex); |
2323 | __il3945_down(il); | |
2324 | mutex_unlock(&il->mutex); | |
4bc85c13 | 2325 | |
46bc8d4b | 2326 | il3945_cancel_deferred_work(il); |
4bc85c13 WYG |
2327 | } |
2328 | ||
2329 | #define MAX_HW_RESTARTS 5 | |
2330 | ||
e7392364 SG |
2331 | static int |
2332 | il3945_alloc_bcast_station(struct il_priv *il) | |
4bc85c13 | 2333 | { |
4bc85c13 WYG |
2334 | unsigned long flags; |
2335 | u8 sta_id; | |
2336 | ||
46bc8d4b | 2337 | spin_lock_irqsave(&il->sta_lock, flags); |
83007196 | 2338 | sta_id = il_prep_station(il, il_bcast_addr, false, NULL); |
e2ebc833 | 2339 | if (sta_id == IL_INVALID_STATION) { |
9406f797 | 2340 | IL_ERR("Unable to prepare broadcast station\n"); |
46bc8d4b | 2341 | spin_unlock_irqrestore(&il->sta_lock, flags); |
4bc85c13 WYG |
2342 | |
2343 | return -EINVAL; | |
2344 | } | |
2345 | ||
46bc8d4b SG |
2346 | il->stations[sta_id].used |= IL_STA_DRIVER_ACTIVE; |
2347 | il->stations[sta_id].used |= IL_STA_BCAST; | |
2348 | spin_unlock_irqrestore(&il->sta_lock, flags); | |
4bc85c13 WYG |
2349 | |
2350 | return 0; | |
2351 | } | |
2352 | ||
e7392364 SG |
2353 | static int |
2354 | __il3945_up(struct il_priv *il) | |
4bc85c13 WYG |
2355 | { |
2356 | int rc, i; | |
2357 | ||
46bc8d4b | 2358 | rc = il3945_alloc_bcast_station(il); |
4bc85c13 WYG |
2359 | if (rc) |
2360 | return rc; | |
2361 | ||
a6766ccd | 2362 | if (test_bit(S_EXIT_PENDING, &il->status)) { |
9406f797 | 2363 | IL_WARN("Exit pending; will not bring the NIC up\n"); |
4bc85c13 WYG |
2364 | return -EIO; |
2365 | } | |
2366 | ||
46bc8d4b | 2367 | if (!il->ucode_data_backup.v_addr || !il->ucode_data.v_addr) { |
9406f797 | 2368 | IL_ERR("ucode not available for device bring up\n"); |
4bc85c13 WYG |
2369 | return -EIO; |
2370 | } | |
2371 | ||
2372 | /* If platform's RF_KILL switch is NOT set to KILL */ | |
e7392364 | 2373 | if (_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
a6766ccd | 2374 | clear_bit(S_RF_KILL_HW, &il->status); |
4bc85c13 | 2375 | else { |
a6766ccd | 2376 | set_bit(S_RF_KILL_HW, &il->status); |
9406f797 | 2377 | IL_WARN("Radio disabled by HW RF Kill switch\n"); |
4bc85c13 WYG |
2378 | return -ENODEV; |
2379 | } | |
2380 | ||
841b2cca | 2381 | _il_wr(il, CSR_INT, 0xFFFFFFFF); |
4bc85c13 | 2382 | |
46bc8d4b | 2383 | rc = il3945_hw_nic_init(il); |
4bc85c13 | 2384 | if (rc) { |
9406f797 | 2385 | IL_ERR("Unable to int nic\n"); |
4bc85c13 WYG |
2386 | return rc; |
2387 | } | |
2388 | ||
2389 | /* make sure rfkill handshake bits are cleared */ | |
841b2cca | 2390 | _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
e7392364 | 2391 | _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED); |
4bc85c13 WYG |
2392 | |
2393 | /* clear (again), then enable host interrupts */ | |
841b2cca | 2394 | _il_wr(il, CSR_INT, 0xFFFFFFFF); |
46bc8d4b | 2395 | il_enable_interrupts(il); |
4bc85c13 WYG |
2396 | |
2397 | /* really make sure rfkill handshake bits are cleared */ | |
841b2cca SG |
2398 | _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); |
2399 | _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL); | |
4bc85c13 WYG |
2400 | |
2401 | /* Copy original ucode data image from disk into backup cache. | |
2402 | * This will be used to initialize the on-board processor's | |
2403 | * data SRAM for a clean start when the runtime program first loads. */ | |
46bc8d4b SG |
2404 | memcpy(il->ucode_data_backup.v_addr, il->ucode_data.v_addr, |
2405 | il->ucode_data.len); | |
4bc85c13 WYG |
2406 | |
2407 | /* We return success when we resume from suspend and rf_kill is on. */ | |
a6766ccd | 2408 | if (test_bit(S_RF_KILL_HW, &il->status)) |
4bc85c13 WYG |
2409 | return 0; |
2410 | ||
2411 | for (i = 0; i < MAX_HW_RESTARTS; i++) { | |
2412 | ||
2413 | /* load bootstrap state machine, | |
2414 | * load bootstrap program into processor's memory, | |
2415 | * prepare to load the "initialize" uCode */ | |
c39ae9fd | 2416 | rc = il->ops->lib->load_ucode(il); |
4bc85c13 WYG |
2417 | |
2418 | if (rc) { | |
e7392364 | 2419 | IL_ERR("Unable to set up bootstrap uCode: %d\n", rc); |
4bc85c13 WYG |
2420 | continue; |
2421 | } | |
2422 | ||
2423 | /* start card; "initialize" will load runtime ucode */ | |
46bc8d4b | 2424 | il3945_nic_start(il); |
4bc85c13 | 2425 | |
58de00a4 | 2426 | D_INFO(DRV_NAME " is coming up\n"); |
4bc85c13 WYG |
2427 | |
2428 | return 0; | |
2429 | } | |
2430 | ||
a6766ccd | 2431 | set_bit(S_EXIT_PENDING, &il->status); |
46bc8d4b | 2432 | __il3945_down(il); |
a6766ccd | 2433 | clear_bit(S_EXIT_PENDING, &il->status); |
4bc85c13 WYG |
2434 | |
2435 | /* tried to restart and config the device for as long as our | |
2436 | * patience could withstand */ | |
9406f797 | 2437 | IL_ERR("Unable to initialize device after %d attempts.\n", i); |
4bc85c13 WYG |
2438 | return -EIO; |
2439 | } | |
2440 | ||
4bc85c13 WYG |
2441 | /***************************************************************************** |
2442 | * | |
2443 | * Workqueue callbacks | |
2444 | * | |
2445 | *****************************************************************************/ | |
2446 | ||
e7392364 SG |
2447 | static void |
2448 | il3945_bg_init_alive_start(struct work_struct *data) | |
4bc85c13 | 2449 | { |
46bc8d4b | 2450 | struct il_priv *il = |
e2ebc833 | 2451 | container_of(data, struct il_priv, init_alive_start.work); |
4bc85c13 | 2452 | |
46bc8d4b | 2453 | mutex_lock(&il->mutex); |
a6766ccd | 2454 | if (test_bit(S_EXIT_PENDING, &il->status)) |
28a6e577 | 2455 | goto out; |
4bc85c13 | 2456 | |
46bc8d4b | 2457 | il3945_init_alive_start(il); |
28a6e577 | 2458 | out: |
46bc8d4b | 2459 | mutex_unlock(&il->mutex); |
4bc85c13 WYG |
2460 | } |
2461 | ||
e7392364 SG |
2462 | static void |
2463 | il3945_bg_alive_start(struct work_struct *data) | |
4bc85c13 | 2464 | { |
46bc8d4b | 2465 | struct il_priv *il = |
e2ebc833 | 2466 | container_of(data, struct il_priv, alive_start.work); |
4bc85c13 | 2467 | |
46bc8d4b | 2468 | mutex_lock(&il->mutex); |
a6766ccd | 2469 | if (test_bit(S_EXIT_PENDING, &il->status)) |
28a6e577 | 2470 | goto out; |
4bc85c13 | 2471 | |
46bc8d4b | 2472 | il3945_alive_start(il); |
28a6e577 | 2473 | out: |
46bc8d4b | 2474 | mutex_unlock(&il->mutex); |
4bc85c13 WYG |
2475 | } |
2476 | ||
2477 | /* | |
2478 | * 3945 cannot interrupt driver when hardware rf kill switch toggles; | |
2479 | * driver must poll CSR_GP_CNTRL_REG register for change. This register | |
2480 | * *is* readable even when device has been SW_RESET into low power mode | |
2481 | * (e.g. during RF KILL). | |
2482 | */ | |
e7392364 SG |
2483 | static void |
2484 | il3945_rfkill_poll(struct work_struct *data) | |
4bc85c13 | 2485 | { |
46bc8d4b | 2486 | struct il_priv *il = |
e2ebc833 | 2487 | container_of(data, struct il_priv, _3945.rfkill_poll.work); |
a6766ccd | 2488 | bool old_rfkill = test_bit(S_RF_KILL_HW, &il->status); |
e7392364 SG |
2489 | bool new_rfkill = |
2490 | !(_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW); | |
4bc85c13 WYG |
2491 | |
2492 | if (new_rfkill != old_rfkill) { | |
2493 | if (new_rfkill) | |
a6766ccd | 2494 | set_bit(S_RF_KILL_HW, &il->status); |
4bc85c13 | 2495 | else |
a6766ccd | 2496 | clear_bit(S_RF_KILL_HW, &il->status); |
4bc85c13 | 2497 | |
46bc8d4b | 2498 | wiphy_rfkill_set_hw_state(il->hw->wiphy, new_rfkill); |
4bc85c13 | 2499 | |
58de00a4 | 2500 | D_RF_KILL("RF_KILL bit toggled to %s.\n", |
e7392364 | 2501 | new_rfkill ? "disable radio" : "enable radio"); |
4bc85c13 WYG |
2502 | } |
2503 | ||
2504 | /* Keep this running, even if radio now enabled. This will be | |
2505 | * cancelled in mac_start() if system decides to start again */ | |
46bc8d4b | 2506 | queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, |
4bc85c13 WYG |
2507 | round_jiffies_relative(2 * HZ)); |
2508 | ||
2509 | } | |
2510 | ||
e7392364 SG |
2511 | int |
2512 | il3945_request_scan(struct il_priv *il, struct ieee80211_vif *vif) | |
4bc85c13 | 2513 | { |
e2ebc833 | 2514 | struct il_host_cmd cmd = { |
4d69c752 | 2515 | .id = C_SCAN, |
e2ebc833 | 2516 | .len = sizeof(struct il3945_scan_cmd), |
4bc85c13 WYG |
2517 | .flags = CMD_SIZE_HUGE, |
2518 | }; | |
e2ebc833 | 2519 | struct il3945_scan_cmd *scan; |
4bc85c13 WYG |
2520 | u8 n_probes = 0; |
2521 | enum ieee80211_band band; | |
2522 | bool is_active = false; | |
2523 | int ret; | |
dd6d2a8a | 2524 | u16 len; |
4bc85c13 | 2525 | |
46bc8d4b | 2526 | lockdep_assert_held(&il->mutex); |
4bc85c13 | 2527 | |
46bc8d4b | 2528 | if (!il->scan_cmd) { |
e7392364 SG |
2529 | il->scan_cmd = |
2530 | kmalloc(sizeof(struct il3945_scan_cmd) + IL_MAX_SCAN_SIZE, | |
2531 | GFP_KERNEL); | |
46bc8d4b | 2532 | if (!il->scan_cmd) { |
58de00a4 | 2533 | D_SCAN("Fail to allocate scan memory\n"); |
4bc85c13 WYG |
2534 | return -ENOMEM; |
2535 | } | |
2536 | } | |
46bc8d4b | 2537 | scan = il->scan_cmd; |
e2ebc833 | 2538 | memset(scan, 0, sizeof(struct il3945_scan_cmd) + IL_MAX_SCAN_SIZE); |
4bc85c13 | 2539 | |
e2ebc833 SG |
2540 | scan->quiet_plcp_th = IL_PLCP_QUIET_THRESH; |
2541 | scan->quiet_time = IL_ACTIVE_QUIET_TIME; | |
4bc85c13 | 2542 | |
7c2cde2e | 2543 | if (il_is_associated(il)) { |
dd6d2a8a | 2544 | u16 interval; |
4bc85c13 WYG |
2545 | u32 extra; |
2546 | u32 suspend_time = 100; | |
2547 | u32 scan_suspend_time = 100; | |
2548 | ||
58de00a4 | 2549 | D_INFO("Scanning while associated...\n"); |
4bc85c13 | 2550 | |
dd6d2a8a | 2551 | interval = vif->bss_conf.beacon_int; |
4bc85c13 WYG |
2552 | |
2553 | scan->suspend_time = 0; | |
2554 | scan->max_out_time = cpu_to_le32(200 * 1024); | |
2555 | if (!interval) | |
2556 | interval = suspend_time; | |
2557 | /* | |
2558 | * suspend time format: | |
2559 | * 0-19: beacon interval in usec (time before exec.) | |
2560 | * 20-23: 0 | |
2561 | * 24-31: number of beacons (suspend between channels) | |
2562 | */ | |
2563 | ||
2564 | extra = (suspend_time / interval) << 24; | |
e7392364 SG |
2565 | scan_suspend_time = |
2566 | 0xFF0FFFFF & (extra | ((suspend_time % interval) * 1024)); | |
4bc85c13 WYG |
2567 | |
2568 | scan->suspend_time = cpu_to_le32(scan_suspend_time); | |
58de00a4 | 2569 | D_SCAN("suspend_time 0x%X beacon interval %d\n", |
e7392364 | 2570 | scan_suspend_time, interval); |
4bc85c13 WYG |
2571 | } |
2572 | ||
46bc8d4b | 2573 | if (il->scan_request->n_ssids) { |
4bc85c13 | 2574 | int i, p = 0; |
58de00a4 | 2575 | D_SCAN("Kicking off active scan\n"); |
46bc8d4b | 2576 | for (i = 0; i < il->scan_request->n_ssids; i++) { |
4bc85c13 | 2577 | /* always does wildcard anyway */ |
46bc8d4b | 2578 | if (!il->scan_request->ssids[i].ssid_len) |
4bc85c13 WYG |
2579 | continue; |
2580 | scan->direct_scan[p].id = WLAN_EID_SSID; | |
2581 | scan->direct_scan[p].len = | |
e7392364 | 2582 | il->scan_request->ssids[i].ssid_len; |
4bc85c13 | 2583 | memcpy(scan->direct_scan[p].ssid, |
46bc8d4b SG |
2584 | il->scan_request->ssids[i].ssid, |
2585 | il->scan_request->ssids[i].ssid_len); | |
4bc85c13 WYG |
2586 | n_probes++; |
2587 | p++; | |
2588 | } | |
2589 | is_active = true; | |
2590 | } else | |
58de00a4 | 2591 | D_SCAN("Kicking off passive scan.\n"); |
4bc85c13 WYG |
2592 | |
2593 | /* We don't build a direct scan probe request; the uCode will do | |
2594 | * that based on the direct_mask added to each channel entry */ | |
2595 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; | |
b16db50a | 2596 | scan->tx_cmd.sta_id = il->hw_params.bcast_id; |
4bc85c13 WYG |
2597 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
2598 | ||
2599 | /* flags + rate selection */ | |
2600 | ||
46bc8d4b | 2601 | switch (il->scan_band) { |
4bc85c13 WYG |
2602 | case IEEE80211_BAND_2GHZ: |
2603 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; | |
2eb05816 | 2604 | scan->tx_cmd.rate = RATE_1M_PLCP; |
4bc85c13 WYG |
2605 | band = IEEE80211_BAND_2GHZ; |
2606 | break; | |
2607 | case IEEE80211_BAND_5GHZ: | |
2eb05816 | 2608 | scan->tx_cmd.rate = RATE_6M_PLCP; |
4bc85c13 WYG |
2609 | band = IEEE80211_BAND_5GHZ; |
2610 | break; | |
2611 | default: | |
9406f797 | 2612 | IL_WARN("Invalid scan band\n"); |
4bc85c13 WYG |
2613 | return -EIO; |
2614 | } | |
2615 | ||
2616 | /* | |
68acc4af SG |
2617 | * If active scaning is requested but a certain channel is marked |
2618 | * passive, we can do active scanning if we detect transmissions. For | |
2619 | * passive only scanning disable switching to active on any channel. | |
4bc85c13 | 2620 | */ |
e7392364 | 2621 | scan->good_CRC_th = |
68acc4af | 2622 | is_active ? IL_GOOD_CRC_TH_DEFAULT : IL_GOOD_CRC_TH_NEVER; |
e7392364 SG |
2623 | |
2624 | len = | |
2625 | il_fill_probe_req(il, (struct ieee80211_mgmt *)scan->data, | |
2626 | vif->addr, il->scan_request->ie, | |
2627 | il->scan_request->ie_len, | |
2628 | IL_MAX_SCAN_SIZE - sizeof(*scan)); | |
dd6d2a8a SG |
2629 | scan->tx_cmd.len = cpu_to_le16(len); |
2630 | ||
4bc85c13 | 2631 | /* select Rx antennas */ |
46bc8d4b | 2632 | scan->flags |= il3945_get_antenna_flags(il); |
4bc85c13 | 2633 | |
e7392364 SG |
2634 | scan->channel_count = |
2635 | il3945_get_channels_for_scan(il, band, is_active, n_probes, | |
2636 | (void *)&scan->data[len], vif); | |
4bc85c13 | 2637 | if (scan->channel_count == 0) { |
58de00a4 | 2638 | D_SCAN("channel count %d\n", scan->channel_count); |
4bc85c13 WYG |
2639 | return -EIO; |
2640 | } | |
2641 | ||
e7392364 SG |
2642 | cmd.len += |
2643 | le16_to_cpu(scan->tx_cmd.len) + | |
e2ebc833 | 2644 | scan->channel_count * sizeof(struct il3945_scan_channel); |
4bc85c13 WYG |
2645 | cmd.data = scan; |
2646 | scan->len = cpu_to_le16(cmd.len); | |
2647 | ||
a6766ccd | 2648 | set_bit(S_SCAN_HW, &il->status); |
46bc8d4b | 2649 | ret = il_send_cmd_sync(il, &cmd); |
4bc85c13 | 2650 | if (ret) |
a6766ccd | 2651 | clear_bit(S_SCAN_HW, &il->status); |
4bc85c13 WYG |
2652 | return ret; |
2653 | } | |
2654 | ||
e7392364 SG |
2655 | void |
2656 | il3945_post_scan(struct il_priv *il) | |
4bc85c13 | 2657 | { |
4bc85c13 WYG |
2658 | /* |
2659 | * Since setting the RXON may have been deferred while | |
2660 | * performing the scan, fire one off if needed | |
2661 | */ | |
c8b03958 | 2662 | if (memcmp(&il->staging, &il->active, sizeof(il->staging))) |
83007196 | 2663 | il3945_commit_rxon(il); |
4bc85c13 WYG |
2664 | } |
2665 | ||
e7392364 SG |
2666 | static void |
2667 | il3945_bg_restart(struct work_struct *data) | |
4bc85c13 | 2668 | { |
46bc8d4b | 2669 | struct il_priv *il = container_of(data, struct il_priv, restart); |
4bc85c13 | 2670 | |
a6766ccd | 2671 | if (test_bit(S_EXIT_PENDING, &il->status)) |
4bc85c13 WYG |
2672 | return; |
2673 | ||
a6766ccd | 2674 | if (test_and_clear_bit(S_FW_ERROR, &il->status)) { |
46bc8d4b | 2675 | mutex_lock(&il->mutex); |
83007196 SG |
2676 | /* FIXME: vif can be dereferenced */ |
2677 | il->vif = NULL; | |
46bc8d4b SG |
2678 | il->is_open = 0; |
2679 | mutex_unlock(&il->mutex); | |
2680 | il3945_down(il); | |
2681 | ieee80211_restart_hw(il->hw); | |
4bc85c13 | 2682 | } else { |
46bc8d4b | 2683 | il3945_down(il); |
4bc85c13 | 2684 | |
46bc8d4b | 2685 | mutex_lock(&il->mutex); |
a6766ccd | 2686 | if (test_bit(S_EXIT_PENDING, &il->status)) { |
46bc8d4b | 2687 | mutex_unlock(&il->mutex); |
4bc85c13 | 2688 | return; |
28a6e577 | 2689 | } |
4bc85c13 | 2690 | |
46bc8d4b SG |
2691 | __il3945_up(il); |
2692 | mutex_unlock(&il->mutex); | |
4bc85c13 WYG |
2693 | } |
2694 | } | |
2695 | ||
e7392364 SG |
2696 | static void |
2697 | il3945_bg_rx_replenish(struct work_struct *data) | |
4bc85c13 | 2698 | { |
e7392364 | 2699 | struct il_priv *il = container_of(data, struct il_priv, rx_replenish); |
4bc85c13 | 2700 | |
46bc8d4b | 2701 | mutex_lock(&il->mutex); |
a6766ccd | 2702 | if (test_bit(S_EXIT_PENDING, &il->status)) |
28a6e577 | 2703 | goto out; |
4bc85c13 | 2704 | |
46bc8d4b | 2705 | il3945_rx_replenish(il); |
28a6e577 | 2706 | out: |
46bc8d4b | 2707 | mutex_unlock(&il->mutex); |
4bc85c13 WYG |
2708 | } |
2709 | ||
e7392364 SG |
2710 | void |
2711 | il3945_post_associate(struct il_priv *il) | |
4bc85c13 WYG |
2712 | { |
2713 | int rc = 0; | |
2714 | struct ieee80211_conf *conf = NULL; | |
4bc85c13 | 2715 | |
83007196 | 2716 | if (!il->vif || !il->is_open) |
4bc85c13 WYG |
2717 | return; |
2718 | ||
83007196 | 2719 | D_ASSOC("Associated as %d to: %pM\n", il->vif->bss_conf.aid, |
c8b03958 | 2720 | il->active.bssid_addr); |
4bc85c13 | 2721 | |
a6766ccd | 2722 | if (test_bit(S_EXIT_PENDING, &il->status)) |
4bc85c13 WYG |
2723 | return; |
2724 | ||
46bc8d4b | 2725 | il_scan_cancel_timeout(il, 200); |
4bc85c13 | 2726 | |
6278ddab | 2727 | conf = &il->hw->conf; |
4bc85c13 | 2728 | |
c8b03958 | 2729 | il->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
83007196 | 2730 | il3945_commit_rxon(il); |
4bc85c13 | 2731 | |
83007196 | 2732 | rc = il_send_rxon_timing(il); |
4bc85c13 | 2733 | if (rc) |
e7392364 | 2734 | IL_WARN("C_RXON_TIMING failed - " "Attempting to continue.\n"); |
4bc85c13 | 2735 | |
c8b03958 | 2736 | il->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
4bc85c13 | 2737 | |
83007196 | 2738 | il->staging.assoc_id = cpu_to_le16(il->vif->bss_conf.aid); |
4bc85c13 | 2739 | |
83007196 SG |
2740 | D_ASSOC("assoc id %d beacon interval %d\n", il->vif->bss_conf.aid, |
2741 | il->vif->bss_conf.beacon_int); | |
4bc85c13 | 2742 | |
83007196 | 2743 | if (il->vif->bss_conf.use_short_preamble) |
c8b03958 | 2744 | il->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
4bc85c13 | 2745 | else |
c8b03958 | 2746 | il->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
4bc85c13 | 2747 | |
c8b03958 | 2748 | if (il->staging.flags & RXON_FLG_BAND_24G_MSK) { |
83007196 | 2749 | if (il->vif->bss_conf.use_short_slot) |
c8b03958 | 2750 | il->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; |
4bc85c13 | 2751 | else |
c8b03958 | 2752 | il->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
4bc85c13 WYG |
2753 | } |
2754 | ||
83007196 | 2755 | il3945_commit_rxon(il); |
4bc85c13 | 2756 | |
83007196 | 2757 | switch (il->vif->type) { |
4bc85c13 | 2758 | case NL80211_IFTYPE_STATION: |
46bc8d4b | 2759 | il3945_rate_scale_init(il->hw, IL_AP_ID); |
4bc85c13 WYG |
2760 | break; |
2761 | case NL80211_IFTYPE_ADHOC: | |
46bc8d4b | 2762 | il3945_send_beacon_cmd(il); |
4bc85c13 WYG |
2763 | break; |
2764 | default: | |
e7392364 | 2765 | IL_ERR("%s Should not be called in %d mode\n", __func__, |
83007196 | 2766 | il->vif->type); |
4bc85c13 WYG |
2767 | break; |
2768 | } | |
2769 | } | |
2770 | ||
2771 | /***************************************************************************** | |
2772 | * | |
2773 | * mac80211 entry point functions | |
2774 | * | |
2775 | *****************************************************************************/ | |
2776 | ||
2777 | #define UCODE_READY_TIMEOUT (2 * HZ) | |
2778 | ||
e7392364 SG |
2779 | static int |
2780 | il3945_mac_start(struct ieee80211_hw *hw) | |
4bc85c13 | 2781 | { |
46bc8d4b | 2782 | struct il_priv *il = hw->priv; |
4bc85c13 WYG |
2783 | int ret; |
2784 | ||
58de00a4 | 2785 | D_MAC80211("enter\n"); |
4bc85c13 WYG |
2786 | |
2787 | /* we should be verifying the device is ready to be opened */ | |
46bc8d4b | 2788 | mutex_lock(&il->mutex); |
4bc85c13 WYG |
2789 | |
2790 | /* fetch ucode file from disk, alloc and copy to bus-master buffers ... | |
2791 | * ucode filename and max sizes are card-specific. */ | |
2792 | ||
46bc8d4b SG |
2793 | if (!il->ucode_code.len) { |
2794 | ret = il3945_read_ucode(il); | |
4bc85c13 | 2795 | if (ret) { |
9406f797 | 2796 | IL_ERR("Could not read microcode: %d\n", ret); |
46bc8d4b | 2797 | mutex_unlock(&il->mutex); |
4bc85c13 WYG |
2798 | goto out_release_irq; |
2799 | } | |
2800 | } | |
2801 | ||
46bc8d4b | 2802 | ret = __il3945_up(il); |
4bc85c13 | 2803 | |
46bc8d4b | 2804 | mutex_unlock(&il->mutex); |
4bc85c13 WYG |
2805 | |
2806 | if (ret) | |
2807 | goto out_release_irq; | |
2808 | ||
58de00a4 | 2809 | D_INFO("Start UP work.\n"); |
4bc85c13 WYG |
2810 | |
2811 | /* Wait for START_ALIVE from ucode. Otherwise callbacks from | |
2812 | * mac80211 will not be run successfully. */ | |
46bc8d4b | 2813 | ret = wait_event_timeout(il->wait_command_queue, |
e7392364 SG |
2814 | test_bit(S_READY, &il->status), |
2815 | UCODE_READY_TIMEOUT); | |
4bc85c13 | 2816 | if (!ret) { |
a6766ccd | 2817 | if (!test_bit(S_READY, &il->status)) { |
e7392364 SG |
2818 | IL_ERR("Wait for START_ALIVE timeout after %dms.\n", |
2819 | jiffies_to_msecs(UCODE_READY_TIMEOUT)); | |
4bc85c13 WYG |
2820 | ret = -ETIMEDOUT; |
2821 | goto out_release_irq; | |
2822 | } | |
2823 | } | |
2824 | ||
2825 | /* ucode is running and will send rfkill notifications, | |
2826 | * no need to poll the killswitch state anymore */ | |
46bc8d4b | 2827 | cancel_delayed_work(&il->_3945.rfkill_poll); |
4bc85c13 | 2828 | |
46bc8d4b | 2829 | il->is_open = 1; |
58de00a4 | 2830 | D_MAC80211("leave\n"); |
4bc85c13 WYG |
2831 | return 0; |
2832 | ||
2833 | out_release_irq: | |
46bc8d4b | 2834 | il->is_open = 0; |
58de00a4 | 2835 | D_MAC80211("leave - failed\n"); |
4bc85c13 WYG |
2836 | return ret; |
2837 | } | |
2838 | ||
e7392364 SG |
2839 | static void |
2840 | il3945_mac_stop(struct ieee80211_hw *hw) | |
4bc85c13 | 2841 | { |
46bc8d4b | 2842 | struct il_priv *il = hw->priv; |
4bc85c13 | 2843 | |
58de00a4 | 2844 | D_MAC80211("enter\n"); |
4bc85c13 | 2845 | |
46bc8d4b | 2846 | if (!il->is_open) { |
58de00a4 | 2847 | D_MAC80211("leave - skip\n"); |
4bc85c13 WYG |
2848 | return; |
2849 | } | |
2850 | ||
46bc8d4b | 2851 | il->is_open = 0; |
4bc85c13 | 2852 | |
46bc8d4b | 2853 | il3945_down(il); |
4bc85c13 | 2854 | |
46bc8d4b | 2855 | flush_workqueue(il->workqueue); |
4bc85c13 WYG |
2856 | |
2857 | /* start polling the killswitch state again */ | |
46bc8d4b | 2858 | queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, |
4bc85c13 WYG |
2859 | round_jiffies_relative(2 * HZ)); |
2860 | ||
58de00a4 | 2861 | D_MAC80211("leave\n"); |
4bc85c13 WYG |
2862 | } |
2863 | ||
e7392364 SG |
2864 | static void |
2865 | il3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
4bc85c13 | 2866 | { |
46bc8d4b | 2867 | struct il_priv *il = hw->priv; |
4bc85c13 | 2868 | |
58de00a4 | 2869 | D_MAC80211("enter\n"); |
4bc85c13 | 2870 | |
58de00a4 | 2871 | D_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
e7392364 | 2872 | ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
4bc85c13 | 2873 | |
46bc8d4b | 2874 | if (il3945_tx_skb(il, skb)) |
4bc85c13 WYG |
2875 | dev_kfree_skb_any(skb); |
2876 | ||
58de00a4 | 2877 | D_MAC80211("leave\n"); |
4bc85c13 WYG |
2878 | } |
2879 | ||
e7392364 SG |
2880 | void |
2881 | il3945_config_ap(struct il_priv *il) | |
4bc85c13 | 2882 | { |
83007196 | 2883 | struct ieee80211_vif *vif = il->vif; |
4bc85c13 WYG |
2884 | int rc = 0; |
2885 | ||
a6766ccd | 2886 | if (test_bit(S_EXIT_PENDING, &il->status)) |
4bc85c13 WYG |
2887 | return; |
2888 | ||
2889 | /* The following should be done only at AP bring up */ | |
7c2cde2e | 2890 | if (!(il_is_associated(il))) { |
4bc85c13 WYG |
2891 | |
2892 | /* RXON - unassoc (to set timing command) */ | |
c8b03958 | 2893 | il->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
83007196 | 2894 | il3945_commit_rxon(il); |
4bc85c13 WYG |
2895 | |
2896 | /* RXON Timing */ | |
83007196 | 2897 | rc = il_send_rxon_timing(il); |
4bc85c13 | 2898 | if (rc) |
4d69c752 | 2899 | IL_WARN("C_RXON_TIMING failed - " |
e7392364 | 2900 | "Attempting to continue.\n"); |
4bc85c13 | 2901 | |
c8b03958 | 2902 | il->staging.assoc_id = 0; |
4bc85c13 WYG |
2903 | |
2904 | if (vif->bss_conf.use_short_preamble) | |
c8b03958 | 2905 | il->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK; |
4bc85c13 | 2906 | else |
c8b03958 | 2907 | il->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK; |
4bc85c13 | 2908 | |
c8b03958 | 2909 | if (il->staging.flags & RXON_FLG_BAND_24G_MSK) { |
4bc85c13 | 2910 | if (vif->bss_conf.use_short_slot) |
c8b03958 | 2911 | il->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; |
4bc85c13 | 2912 | else |
c8b03958 | 2913 | il->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK; |
4bc85c13 WYG |
2914 | } |
2915 | /* restore RXON assoc */ | |
c8b03958 | 2916 | il->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
83007196 | 2917 | il3945_commit_rxon(il); |
4bc85c13 | 2918 | } |
46bc8d4b | 2919 | il3945_send_beacon_cmd(il); |
4bc85c13 WYG |
2920 | } |
2921 | ||
e7392364 SG |
2922 | static int |
2923 | il3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, | |
2924 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, | |
2925 | struct ieee80211_key_conf *key) | |
4bc85c13 | 2926 | { |
46bc8d4b | 2927 | struct il_priv *il = hw->priv; |
4bc85c13 | 2928 | int ret = 0; |
e2ebc833 | 2929 | u8 sta_id = IL_INVALID_STATION; |
4bc85c13 WYG |
2930 | u8 static_key; |
2931 | ||
58de00a4 | 2932 | D_MAC80211("enter\n"); |
4bc85c13 | 2933 | |
e2ebc833 | 2934 | if (il3945_mod_params.sw_crypto) { |
58de00a4 | 2935 | D_MAC80211("leave - hwcrypto disabled\n"); |
4bc85c13 WYG |
2936 | return -EOPNOTSUPP; |
2937 | } | |
2938 | ||
2939 | /* | |
2940 | * To support IBSS RSN, don't program group keys in IBSS, the | |
2941 | * hardware will then not attempt to decrypt the frames. | |
2942 | */ | |
2943 | if (vif->type == NL80211_IFTYPE_ADHOC && | |
2944 | !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) | |
2945 | return -EOPNOTSUPP; | |
2946 | ||
7c2cde2e | 2947 | static_key = !il_is_associated(il); |
4bc85c13 WYG |
2948 | |
2949 | if (!static_key) { | |
83007196 | 2950 | sta_id = il_sta_id_or_broadcast(il, sta); |
e2ebc833 | 2951 | if (sta_id == IL_INVALID_STATION) |
4bc85c13 WYG |
2952 | return -EINVAL; |
2953 | } | |
2954 | ||
46bc8d4b SG |
2955 | mutex_lock(&il->mutex); |
2956 | il_scan_cancel_timeout(il, 100); | |
4bc85c13 WYG |
2957 | |
2958 | switch (cmd) { | |
2959 | case SET_KEY: | |
2960 | if (static_key) | |
46bc8d4b | 2961 | ret = il3945_set_static_key(il, key); |
4bc85c13 | 2962 | else |
46bc8d4b | 2963 | ret = il3945_set_dynamic_key(il, key, sta_id); |
58de00a4 | 2964 | D_MAC80211("enable hwcrypto key\n"); |
4bc85c13 WYG |
2965 | break; |
2966 | case DISABLE_KEY: | |
2967 | if (static_key) | |
46bc8d4b | 2968 | ret = il3945_remove_static_key(il); |
4bc85c13 | 2969 | else |
46bc8d4b | 2970 | ret = il3945_clear_sta_key_info(il, sta_id); |
58de00a4 | 2971 | D_MAC80211("disable hwcrypto key\n"); |
4bc85c13 WYG |
2972 | break; |
2973 | default: | |
2974 | ret = -EINVAL; | |
2975 | } | |
2976 | ||
46bc8d4b | 2977 | mutex_unlock(&il->mutex); |
58de00a4 | 2978 | D_MAC80211("leave\n"); |
4bc85c13 WYG |
2979 | |
2980 | return ret; | |
2981 | } | |
2982 | ||
e7392364 SG |
2983 | static int |
2984 | il3945_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, | |
2985 | struct ieee80211_sta *sta) | |
4bc85c13 | 2986 | { |
46bc8d4b | 2987 | struct il_priv *il = hw->priv; |
e2ebc833 | 2988 | struct il3945_sta_priv *sta_priv = (void *)sta->drv_priv; |
4bc85c13 WYG |
2989 | int ret; |
2990 | bool is_ap = vif->type == NL80211_IFTYPE_STATION; | |
2991 | u8 sta_id; | |
2992 | ||
e7392364 | 2993 | D_INFO("received request to add station %pM\n", sta->addr); |
46bc8d4b | 2994 | mutex_lock(&il->mutex); |
e7392364 | 2995 | D_INFO("proceeding to add station %pM\n", sta->addr); |
e2ebc833 | 2996 | sta_priv->common.sta_id = IL_INVALID_STATION; |
4bc85c13 | 2997 | |
83007196 | 2998 | ret = il_add_station_common(il, sta->addr, is_ap, sta, &sta_id); |
4bc85c13 | 2999 | if (ret) { |
e7392364 | 3000 | IL_ERR("Unable to add station %pM (%d)\n", sta->addr, ret); |
4bc85c13 | 3001 | /* Should we return success if return code is EEXIST ? */ |
46bc8d4b | 3002 | mutex_unlock(&il->mutex); |
4bc85c13 WYG |
3003 | return ret; |
3004 | } | |
3005 | ||
3006 | sta_priv->common.sta_id = sta_id; | |
3007 | ||
3008 | /* Initialize rate scaling */ | |
e7392364 | 3009 | D_INFO("Initializing rate scaling for station %pM\n", sta->addr); |
46bc8d4b SG |
3010 | il3945_rs_rate_init(il, sta, sta_id); |
3011 | mutex_unlock(&il->mutex); | |
4bc85c13 WYG |
3012 | |
3013 | return 0; | |
3014 | } | |
3015 | ||
e7392364 SG |
3016 | static void |
3017 | il3945_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, | |
3018 | unsigned int *total_flags, u64 multicast) | |
4bc85c13 | 3019 | { |
46bc8d4b | 3020 | struct il_priv *il = hw->priv; |
4bc85c13 | 3021 | __le32 filter_or = 0, filter_nand = 0; |
4bc85c13 WYG |
3022 | |
3023 | #define CHK(test, flag) do { \ | |
3024 | if (*total_flags & (test)) \ | |
3025 | filter_or |= (flag); \ | |
3026 | else \ | |
3027 | filter_nand |= (flag); \ | |
3028 | } while (0) | |
3029 | ||
e7392364 SG |
3030 | D_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", changed_flags, |
3031 | *total_flags); | |
4bc85c13 WYG |
3032 | |
3033 | CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); | |
3034 | CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK); | |
3035 | CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); | |
3036 | ||
3037 | #undef CHK | |
3038 | ||
46bc8d4b | 3039 | mutex_lock(&il->mutex); |
4bc85c13 | 3040 | |
c8b03958 SG |
3041 | il->staging.filter_flags &= ~filter_nand; |
3042 | il->staging.filter_flags |= filter_or; | |
4bc85c13 WYG |
3043 | |
3044 | /* | |
3045 | * Not committing directly because hardware can perform a scan, | |
3046 | * but even if hw is ready, committing here breaks for some reason, | |
3047 | * we'll eventually commit the filter flags change anyway. | |
3048 | */ | |
3049 | ||
46bc8d4b | 3050 | mutex_unlock(&il->mutex); |
4bc85c13 WYG |
3051 | |
3052 | /* | |
3053 | * Receiving all multicast frames is always enabled by the | |
e2ebc833 | 3054 | * default flags setup in il_connection_init_rx_config() |
4bc85c13 WYG |
3055 | * since we currently do not support programming multicast |
3056 | * filters into the device. | |
3057 | */ | |
e7392364 SG |
3058 | *total_flags &= |
3059 | FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | | |
3060 | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; | |
4bc85c13 WYG |
3061 | } |
3062 | ||
4bc85c13 WYG |
3063 | /***************************************************************************** |
3064 | * | |
3065 | * sysfs attributes | |
3066 | * | |
3067 | *****************************************************************************/ | |
3068 | ||
d3175167 | 3069 | #ifdef CONFIG_IWLEGACY_DEBUG |
4bc85c13 WYG |
3070 | |
3071 | /* | |
3072 | * The following adds a new attribute to the sysfs representation | |
3073 | * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/) | |
3074 | * used for controlling the debug level. | |
3075 | * | |
3076 | * See the level definitions in iwl for details. | |
3077 | * | |
3078 | * The debug_level being managed using sysfs below is a per device debug | |
3079 | * level that is used instead of the global debug level if it (the per | |
3080 | * device debug level) is set. | |
3081 | */ | |
e7392364 SG |
3082 | static ssize_t |
3083 | il3945_show_debug_level(struct device *d, struct device_attribute *attr, | |
3084 | char *buf) | |
4bc85c13 | 3085 | { |
46bc8d4b SG |
3086 | struct il_priv *il = dev_get_drvdata(d); |
3087 | return sprintf(buf, "0x%08X\n", il_get_debug_level(il)); | |
4bc85c13 | 3088 | } |
e7392364 SG |
3089 | |
3090 | static ssize_t | |
3091 | il3945_store_debug_level(struct device *d, struct device_attribute *attr, | |
3092 | const char *buf, size_t count) | |
4bc85c13 | 3093 | { |
46bc8d4b | 3094 | struct il_priv *il = dev_get_drvdata(d); |
4bc85c13 WYG |
3095 | unsigned long val; |
3096 | int ret; | |
3097 | ||
3098 | ret = strict_strtoul(buf, 0, &val); | |
3099 | if (ret) | |
9406f797 | 3100 | IL_INFO("%s is not in hex or decimal form.\n", buf); |
4bc85c13 | 3101 | else { |
46bc8d4b SG |
3102 | il->debug_level = val; |
3103 | if (il_alloc_traffic_mem(il)) | |
e7392364 | 3104 | IL_ERR("Not enough memory to generate traffic log\n"); |
4bc85c13 WYG |
3105 | } |
3106 | return strnlen(buf, count); | |
3107 | } | |
3108 | ||
e7392364 SG |
3109 | static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, il3945_show_debug_level, |
3110 | il3945_store_debug_level); | |
4bc85c13 | 3111 | |
d3175167 | 3112 | #endif /* CONFIG_IWLEGACY_DEBUG */ |
4bc85c13 | 3113 | |
e7392364 SG |
3114 | static ssize_t |
3115 | il3945_show_temperature(struct device *d, struct device_attribute *attr, | |
3116 | char *buf) | |
4bc85c13 | 3117 | { |
46bc8d4b | 3118 | struct il_priv *il = dev_get_drvdata(d); |
4bc85c13 | 3119 | |
46bc8d4b | 3120 | if (!il_is_alive(il)) |
4bc85c13 WYG |
3121 | return -EAGAIN; |
3122 | ||
46bc8d4b | 3123 | return sprintf(buf, "%d\n", il3945_hw_get_temperature(il)); |
4bc85c13 WYG |
3124 | } |
3125 | ||
e2ebc833 | 3126 | static DEVICE_ATTR(temperature, S_IRUGO, il3945_show_temperature, NULL); |
4bc85c13 | 3127 | |
e7392364 SG |
3128 | static ssize_t |
3129 | il3945_show_tx_power(struct device *d, struct device_attribute *attr, char *buf) | |
4bc85c13 | 3130 | { |
46bc8d4b SG |
3131 | struct il_priv *il = dev_get_drvdata(d); |
3132 | return sprintf(buf, "%d\n", il->tx_power_user_lmt); | |
4bc85c13 WYG |
3133 | } |
3134 | ||
e7392364 SG |
3135 | static ssize_t |
3136 | il3945_store_tx_power(struct device *d, struct device_attribute *attr, | |
3137 | const char *buf, size_t count) | |
4bc85c13 | 3138 | { |
46bc8d4b | 3139 | struct il_priv *il = dev_get_drvdata(d); |
4bc85c13 WYG |
3140 | char *p = (char *)buf; |
3141 | u32 val; | |
3142 | ||
3143 | val = simple_strtoul(p, &p, 10); | |
3144 | if (p == buf) | |
9406f797 | 3145 | IL_INFO(": %s is not in decimal form.\n", buf); |
4bc85c13 | 3146 | else |
46bc8d4b | 3147 | il3945_hw_reg_set_txpower(il, val); |
4bc85c13 WYG |
3148 | |
3149 | return count; | |
3150 | } | |
3151 | ||
e7392364 SG |
3152 | static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, il3945_show_tx_power, |
3153 | il3945_store_tx_power); | |
4bc85c13 | 3154 | |
e7392364 SG |
3155 | static ssize_t |
3156 | il3945_show_flags(struct device *d, struct device_attribute *attr, char *buf) | |
4bc85c13 | 3157 | { |
46bc8d4b | 3158 | struct il_priv *il = dev_get_drvdata(d); |
4bc85c13 | 3159 | |
c8b03958 | 3160 | return sprintf(buf, "0x%04X\n", il->active.flags); |
4bc85c13 WYG |
3161 | } |
3162 | ||
e7392364 SG |
3163 | static ssize_t |
3164 | il3945_store_flags(struct device *d, struct device_attribute *attr, | |
3165 | const char *buf, size_t count) | |
4bc85c13 | 3166 | { |
46bc8d4b | 3167 | struct il_priv *il = dev_get_drvdata(d); |
4bc85c13 | 3168 | u32 flags = simple_strtoul(buf, NULL, 0); |
4bc85c13 | 3169 | |
46bc8d4b | 3170 | mutex_lock(&il->mutex); |
c8b03958 | 3171 | if (le32_to_cpu(il->staging.flags) != flags) { |
4bc85c13 | 3172 | /* Cancel any currently running scans... */ |
46bc8d4b | 3173 | if (il_scan_cancel_timeout(il, 100)) |
9406f797 | 3174 | IL_WARN("Could not cancel scan.\n"); |
4bc85c13 | 3175 | else { |
e7392364 | 3176 | D_INFO("Committing rxon.flags = 0x%04X\n", flags); |
c8b03958 | 3177 | il->staging.flags = cpu_to_le32(flags); |
83007196 | 3178 | il3945_commit_rxon(il); |
4bc85c13 WYG |
3179 | } |
3180 | } | |
46bc8d4b | 3181 | mutex_unlock(&il->mutex); |
4bc85c13 WYG |
3182 | |
3183 | return count; | |
3184 | } | |
3185 | ||
e7392364 SG |
3186 | static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, il3945_show_flags, |
3187 | il3945_store_flags); | |
4bc85c13 | 3188 | |
e7392364 SG |
3189 | static ssize_t |
3190 | il3945_show_filter_flags(struct device *d, struct device_attribute *attr, | |
3191 | char *buf) | |
4bc85c13 | 3192 | { |
46bc8d4b | 3193 | struct il_priv *il = dev_get_drvdata(d); |
4bc85c13 | 3194 | |
c8b03958 | 3195 | return sprintf(buf, "0x%04X\n", le32_to_cpu(il->active.filter_flags)); |
4bc85c13 WYG |
3196 | } |
3197 | ||
e7392364 SG |
3198 | static ssize_t |
3199 | il3945_store_filter_flags(struct device *d, struct device_attribute *attr, | |
3200 | const char *buf, size_t count) | |
4bc85c13 | 3201 | { |
46bc8d4b | 3202 | struct il_priv *il = dev_get_drvdata(d); |
4bc85c13 WYG |
3203 | u32 filter_flags = simple_strtoul(buf, NULL, 0); |
3204 | ||
46bc8d4b | 3205 | mutex_lock(&il->mutex); |
c8b03958 | 3206 | if (le32_to_cpu(il->staging.filter_flags) != filter_flags) { |
4bc85c13 | 3207 | /* Cancel any currently running scans... */ |
46bc8d4b | 3208 | if (il_scan_cancel_timeout(il, 100)) |
9406f797 | 3209 | IL_WARN("Could not cancel scan.\n"); |
4bc85c13 | 3210 | else { |
e7392364 SG |
3211 | D_INFO("Committing rxon.filter_flags = " "0x%04X\n", |
3212 | filter_flags); | |
c8b03958 | 3213 | il->staging.filter_flags = cpu_to_le32(filter_flags); |
83007196 | 3214 | il3945_commit_rxon(il); |
4bc85c13 WYG |
3215 | } |
3216 | } | |
46bc8d4b | 3217 | mutex_unlock(&il->mutex); |
4bc85c13 WYG |
3218 | |
3219 | return count; | |
3220 | } | |
3221 | ||
e2ebc833 SG |
3222 | static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, il3945_show_filter_flags, |
3223 | il3945_store_filter_flags); | |
4bc85c13 | 3224 | |
e7392364 SG |
3225 | static ssize_t |
3226 | il3945_show_measurement(struct device *d, struct device_attribute *attr, | |
3227 | char *buf) | |
4bc85c13 | 3228 | { |
46bc8d4b | 3229 | struct il_priv *il = dev_get_drvdata(d); |
e2ebc833 | 3230 | struct il_spectrum_notification measure_report; |
4bc85c13 | 3231 | u32 size = sizeof(measure_report), len = 0, ofs = 0; |
1722f8e1 | 3232 | u8 *data = (u8 *) &measure_report; |
4bc85c13 WYG |
3233 | unsigned long flags; |
3234 | ||
46bc8d4b SG |
3235 | spin_lock_irqsave(&il->lock, flags); |
3236 | if (!(il->measurement_status & MEASUREMENT_READY)) { | |
3237 | spin_unlock_irqrestore(&il->lock, flags); | |
4bc85c13 WYG |
3238 | return 0; |
3239 | } | |
46bc8d4b SG |
3240 | memcpy(&measure_report, &il->measure_report, size); |
3241 | il->measurement_status = 0; | |
3242 | spin_unlock_irqrestore(&il->lock, flags); | |
4bc85c13 | 3243 | |
232913b5 | 3244 | while (size && PAGE_SIZE - len) { |
4bc85c13 WYG |
3245 | hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len, |
3246 | PAGE_SIZE - len, 1); | |
3247 | len = strlen(buf); | |
3248 | if (PAGE_SIZE - len) | |
3249 | buf[len++] = '\n'; | |
3250 | ||
3251 | ofs += 16; | |
3252 | size -= min(size, 16U); | |
3253 | } | |
3254 | ||
3255 | return len; | |
3256 | } | |
3257 | ||
e7392364 SG |
3258 | static ssize_t |
3259 | il3945_store_measurement(struct device *d, struct device_attribute *attr, | |
3260 | const char *buf, size_t count) | |
4bc85c13 | 3261 | { |
46bc8d4b | 3262 | struct il_priv *il = dev_get_drvdata(d); |
4bc85c13 | 3263 | struct ieee80211_measurement_params params = { |
c8b03958 | 3264 | .channel = le16_to_cpu(il->active.channel), |
46bc8d4b | 3265 | .start_time = cpu_to_le64(il->_3945.last_tsf), |
4bc85c13 WYG |
3266 | .duration = cpu_to_le16(1), |
3267 | }; | |
e2ebc833 | 3268 | u8 type = IL_MEASURE_BASIC; |
4bc85c13 WYG |
3269 | u8 buffer[32]; |
3270 | u8 channel; | |
3271 | ||
3272 | if (count) { | |
3273 | char *p = buffer; | |
3274 | strncpy(buffer, buf, min(sizeof(buffer), count)); | |
3275 | channel = simple_strtoul(p, NULL, 0); | |
3276 | if (channel) | |
3277 | params.channel = channel; | |
3278 | ||
3279 | p = buffer; | |
3280 | while (*p && *p != ' ') | |
3281 | p++; | |
3282 | if (*p) | |
3283 | type = simple_strtoul(p + 1, NULL, 0); | |
3284 | } | |
3285 | ||
e7392364 SG |
3286 | D_INFO("Invoking measurement of type %d on " "channel %d (for '%s')\n", |
3287 | type, params.channel, buf); | |
46bc8d4b | 3288 | il3945_get_measurement(il, ¶ms, type); |
4bc85c13 WYG |
3289 | |
3290 | return count; | |
3291 | } | |
3292 | ||
e7392364 SG |
3293 | static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, il3945_show_measurement, |
3294 | il3945_store_measurement); | |
4bc85c13 | 3295 | |
e7392364 SG |
3296 | static ssize_t |
3297 | il3945_store_retry_rate(struct device *d, struct device_attribute *attr, | |
3298 | const char *buf, size_t count) | |
4bc85c13 | 3299 | { |
46bc8d4b | 3300 | struct il_priv *il = dev_get_drvdata(d); |
4bc85c13 | 3301 | |
46bc8d4b SG |
3302 | il->retry_rate = simple_strtoul(buf, NULL, 0); |
3303 | if (il->retry_rate <= 0) | |
3304 | il->retry_rate = 1; | |
4bc85c13 WYG |
3305 | |
3306 | return count; | |
3307 | } | |
3308 | ||
e7392364 SG |
3309 | static ssize_t |
3310 | il3945_show_retry_rate(struct device *d, struct device_attribute *attr, | |
3311 | char *buf) | |
4bc85c13 | 3312 | { |
46bc8d4b SG |
3313 | struct il_priv *il = dev_get_drvdata(d); |
3314 | return sprintf(buf, "%d", il->retry_rate); | |
4bc85c13 WYG |
3315 | } |
3316 | ||
e2ebc833 SG |
3317 | static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, il3945_show_retry_rate, |
3318 | il3945_store_retry_rate); | |
4bc85c13 | 3319 | |
e7392364 SG |
3320 | static ssize_t |
3321 | il3945_show_channels(struct device *d, struct device_attribute *attr, char *buf) | |
4bc85c13 WYG |
3322 | { |
3323 | /* all this shit doesn't belong into sysfs anyway */ | |
3324 | return 0; | |
3325 | } | |
3326 | ||
e2ebc833 | 3327 | static DEVICE_ATTR(channels, S_IRUSR, il3945_show_channels, NULL); |
4bc85c13 | 3328 | |
e7392364 SG |
3329 | static ssize_t |
3330 | il3945_show_antenna(struct device *d, struct device_attribute *attr, char *buf) | |
4bc85c13 | 3331 | { |
46bc8d4b | 3332 | struct il_priv *il = dev_get_drvdata(d); |
4bc85c13 | 3333 | |
46bc8d4b | 3334 | if (!il_is_alive(il)) |
4bc85c13 WYG |
3335 | return -EAGAIN; |
3336 | ||
e2ebc833 | 3337 | return sprintf(buf, "%d\n", il3945_mod_params.antenna); |
4bc85c13 WYG |
3338 | } |
3339 | ||
e7392364 SG |
3340 | static ssize_t |
3341 | il3945_store_antenna(struct device *d, struct device_attribute *attr, | |
3342 | const char *buf, size_t count) | |
4bc85c13 | 3343 | { |
46bc8d4b | 3344 | struct il_priv *il __maybe_unused = dev_get_drvdata(d); |
4bc85c13 WYG |
3345 | int ant; |
3346 | ||
3347 | if (count == 0) | |
3348 | return 0; | |
3349 | ||
3350 | if (sscanf(buf, "%1i", &ant) != 1) { | |
58de00a4 | 3351 | D_INFO("not in hex or decimal form.\n"); |
4bc85c13 WYG |
3352 | return count; |
3353 | } | |
3354 | ||
232913b5 | 3355 | if (ant >= 0 && ant <= 2) { |
58de00a4 | 3356 | D_INFO("Setting antenna select to %d.\n", ant); |
e2ebc833 | 3357 | il3945_mod_params.antenna = (enum il3945_antenna)ant; |
4bc85c13 | 3358 | } else |
58de00a4 | 3359 | D_INFO("Bad antenna select value %d.\n", ant); |
4bc85c13 | 3360 | |
4bc85c13 WYG |
3361 | return count; |
3362 | } | |
3363 | ||
e7392364 SG |
3364 | static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, il3945_show_antenna, |
3365 | il3945_store_antenna); | |
4bc85c13 | 3366 | |
e7392364 SG |
3367 | static ssize_t |
3368 | il3945_show_status(struct device *d, struct device_attribute *attr, char *buf) | |
4bc85c13 | 3369 | { |
46bc8d4b SG |
3370 | struct il_priv *il = dev_get_drvdata(d); |
3371 | if (!il_is_alive(il)) | |
4bc85c13 | 3372 | return -EAGAIN; |
46bc8d4b | 3373 | return sprintf(buf, "0x%08x\n", (int)il->status); |
4bc85c13 WYG |
3374 | } |
3375 | ||
e2ebc833 | 3376 | static DEVICE_ATTR(status, S_IRUGO, il3945_show_status, NULL); |
4bc85c13 | 3377 | |
e7392364 SG |
3378 | static ssize_t |
3379 | il3945_dump_error_log(struct device *d, struct device_attribute *attr, | |
3380 | const char *buf, size_t count) | |
4bc85c13 | 3381 | { |
46bc8d4b | 3382 | struct il_priv *il = dev_get_drvdata(d); |
4bc85c13 WYG |
3383 | char *p = (char *)buf; |
3384 | ||
3385 | if (p[0] == '1') | |
46bc8d4b | 3386 | il3945_dump_nic_error_log(il); |
4bc85c13 WYG |
3387 | |
3388 | return strnlen(buf, count); | |
3389 | } | |
3390 | ||
e2ebc833 | 3391 | static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, il3945_dump_error_log); |
4bc85c13 WYG |
3392 | |
3393 | /***************************************************************************** | |
3394 | * | |
3395 | * driver setup and tear down | |
3396 | * | |
3397 | *****************************************************************************/ | |
3398 | ||
e7392364 SG |
3399 | static void |
3400 | il3945_setup_deferred_work(struct il_priv *il) | |
4bc85c13 | 3401 | { |
46bc8d4b | 3402 | il->workqueue = create_singlethread_workqueue(DRV_NAME); |
4bc85c13 | 3403 | |
46bc8d4b | 3404 | init_waitqueue_head(&il->wait_command_queue); |
4bc85c13 | 3405 | |
46bc8d4b SG |
3406 | INIT_WORK(&il->restart, il3945_bg_restart); |
3407 | INIT_WORK(&il->rx_replenish, il3945_bg_rx_replenish); | |
3408 | INIT_DELAYED_WORK(&il->init_alive_start, il3945_bg_init_alive_start); | |
3409 | INIT_DELAYED_WORK(&il->alive_start, il3945_bg_alive_start); | |
3410 | INIT_DELAYED_WORK(&il->_3945.rfkill_poll, il3945_rfkill_poll); | |
4bc85c13 | 3411 | |
46bc8d4b | 3412 | il_setup_scan_deferred_work(il); |
4bc85c13 | 3413 | |
46bc8d4b | 3414 | il3945_hw_setup_deferred_work(il); |
4bc85c13 | 3415 | |
46bc8d4b SG |
3416 | init_timer(&il->watchdog); |
3417 | il->watchdog.data = (unsigned long)il; | |
3418 | il->watchdog.function = il_bg_watchdog; | |
4bc85c13 | 3419 | |
e7392364 SG |
3420 | tasklet_init(&il->irq_tasklet, |
3421 | (void (*)(unsigned long))il3945_irq_tasklet, | |
3422 | (unsigned long)il); | |
4bc85c13 WYG |
3423 | } |
3424 | ||
e7392364 SG |
3425 | static void |
3426 | il3945_cancel_deferred_work(struct il_priv *il) | |
4bc85c13 | 3427 | { |
46bc8d4b | 3428 | il3945_hw_cancel_deferred_work(il); |
4bc85c13 | 3429 | |
46bc8d4b SG |
3430 | cancel_delayed_work_sync(&il->init_alive_start); |
3431 | cancel_delayed_work(&il->alive_start); | |
4bc85c13 | 3432 | |
46bc8d4b | 3433 | il_cancel_scan_deferred_work(il); |
4bc85c13 WYG |
3434 | } |
3435 | ||
e2ebc833 | 3436 | static struct attribute *il3945_sysfs_entries[] = { |
4bc85c13 WYG |
3437 | &dev_attr_antenna.attr, |
3438 | &dev_attr_channels.attr, | |
3439 | &dev_attr_dump_errors.attr, | |
3440 | &dev_attr_flags.attr, | |
3441 | &dev_attr_filter_flags.attr, | |
3442 | &dev_attr_measurement.attr, | |
3443 | &dev_attr_retry_rate.attr, | |
3444 | &dev_attr_status.attr, | |
3445 | &dev_attr_temperature.attr, | |
3446 | &dev_attr_tx_power.attr, | |
d3175167 | 3447 | #ifdef CONFIG_IWLEGACY_DEBUG |
4bc85c13 WYG |
3448 | &dev_attr_debug_level.attr, |
3449 | #endif | |
3450 | NULL | |
3451 | }; | |
3452 | ||
e2ebc833 | 3453 | static struct attribute_group il3945_attribute_group = { |
4bc85c13 | 3454 | .name = NULL, /* put in device directory */ |
e2ebc833 | 3455 | .attrs = il3945_sysfs_entries, |
4bc85c13 WYG |
3456 | }; |
3457 | ||
c39ae9fd | 3458 | struct ieee80211_ops il3945_mac_ops = { |
e2ebc833 SG |
3459 | .tx = il3945_mac_tx, |
3460 | .start = il3945_mac_start, | |
3461 | .stop = il3945_mac_stop, | |
3462 | .add_interface = il_mac_add_interface, | |
3463 | .remove_interface = il_mac_remove_interface, | |
3464 | .change_interface = il_mac_change_interface, | |
3465 | .config = il_mac_config, | |
3466 | .configure_filter = il3945_configure_filter, | |
3467 | .set_key = il3945_mac_set_key, | |
3468 | .conf_tx = il_mac_conf_tx, | |
3469 | .reset_tsf = il_mac_reset_tsf, | |
3470 | .bss_info_changed = il_mac_bss_info_changed, | |
3471 | .hw_scan = il_mac_hw_scan, | |
3472 | .sta_add = il3945_mac_sta_add, | |
3473 | .sta_remove = il_mac_sta_remove, | |
3474 | .tx_last_beacon = il_mac_tx_last_beacon, | |
4bc85c13 WYG |
3475 | }; |
3476 | ||
e7392364 SG |
3477 | static int |
3478 | il3945_init_drv(struct il_priv *il) | |
4bc85c13 WYG |
3479 | { |
3480 | int ret; | |
46bc8d4b | 3481 | struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom; |
4bc85c13 | 3482 | |
46bc8d4b SG |
3483 | il->retry_rate = 1; |
3484 | il->beacon_skb = NULL; | |
4bc85c13 | 3485 | |
46bc8d4b SG |
3486 | spin_lock_init(&il->sta_lock); |
3487 | spin_lock_init(&il->hcmd_lock); | |
4bc85c13 | 3488 | |
46bc8d4b | 3489 | INIT_LIST_HEAD(&il->free_frames); |
4bc85c13 | 3490 | |
46bc8d4b | 3491 | mutex_init(&il->mutex); |
4bc85c13 | 3492 | |
46bc8d4b SG |
3493 | il->ieee_channels = NULL; |
3494 | il->ieee_rates = NULL; | |
3495 | il->band = IEEE80211_BAND_2GHZ; | |
4bc85c13 | 3496 | |
46bc8d4b SG |
3497 | il->iw_mode = NL80211_IFTYPE_STATION; |
3498 | il->missed_beacon_threshold = IL_MISSED_BEACON_THRESHOLD_DEF; | |
4bc85c13 WYG |
3499 | |
3500 | /* initialize force reset */ | |
46bc8d4b | 3501 | il->force_reset.reset_duration = IL_DELAY_NEXT_FORCE_FW_RELOAD; |
4bc85c13 | 3502 | |
4bc85c13 | 3503 | if (eeprom->version < EEPROM_3945_EEPROM_VERSION) { |
9406f797 | 3504 | IL_WARN("Unsupported EEPROM version: 0x%04X\n", |
e7392364 | 3505 | eeprom->version); |
4bc85c13 WYG |
3506 | ret = -EINVAL; |
3507 | goto err; | |
3508 | } | |
46bc8d4b | 3509 | ret = il_init_channel_map(il); |
4bc85c13 | 3510 | if (ret) { |
9406f797 | 3511 | IL_ERR("initializing regulatory failed: %d\n", ret); |
4bc85c13 WYG |
3512 | goto err; |
3513 | } | |
3514 | ||
3515 | /* Set up txpower settings in driver for all channels */ | |
46bc8d4b | 3516 | if (il3945_txpower_set_from_eeprom(il)) { |
4bc85c13 WYG |
3517 | ret = -EIO; |
3518 | goto err_free_channel_map; | |
3519 | } | |
3520 | ||
46bc8d4b | 3521 | ret = il_init_geos(il); |
4bc85c13 | 3522 | if (ret) { |
9406f797 | 3523 | IL_ERR("initializing geos failed: %d\n", ret); |
4bc85c13 WYG |
3524 | goto err_free_channel_map; |
3525 | } | |
46bc8d4b | 3526 | il3945_init_hw_rates(il, il->ieee_rates); |
4bc85c13 WYG |
3527 | |
3528 | return 0; | |
3529 | ||
3530 | err_free_channel_map: | |
46bc8d4b | 3531 | il_free_channel_map(il); |
4bc85c13 WYG |
3532 | err: |
3533 | return ret; | |
3534 | } | |
3535 | ||
d3175167 | 3536 | #define IL3945_MAX_PROBE_REQUEST 200 |
4bc85c13 | 3537 | |
e7392364 SG |
3538 | static int |
3539 | il3945_setup_mac(struct il_priv *il) | |
4bc85c13 WYG |
3540 | { |
3541 | int ret; | |
46bc8d4b | 3542 | struct ieee80211_hw *hw = il->hw; |
4bc85c13 WYG |
3543 | |
3544 | hw->rate_control_algorithm = "iwl-3945-rs"; | |
e2ebc833 SG |
3545 | hw->sta_data_size = sizeof(struct il3945_sta_priv); |
3546 | hw->vif_data_size = sizeof(struct il_vif_priv); | |
4bc85c13 WYG |
3547 | |
3548 | /* Tell mac80211 our characteristics */ | |
e7392364 | 3549 | hw->flags = IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_SPECTRUM_MGMT; |
4bc85c13 | 3550 | |
8c9c48d5 SG |
3551 | hw->wiphy->interface_modes = |
3552 | BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); | |
4bc85c13 | 3553 | |
e7392364 SG |
3554 | hw->wiphy->flags |= |
3555 | WIPHY_FLAG_CUSTOM_REGULATORY | WIPHY_FLAG_DISABLE_BEACON_HINTS | | |
3556 | WIPHY_FLAG_IBSS_RSN; | |
4bc85c13 WYG |
3557 | |
3558 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945; | |
3559 | /* we create the 802.11 header and a zero-length SSID element */ | |
d3175167 | 3560 | hw->wiphy->max_scan_ie_len = IL3945_MAX_PROBE_REQUEST - 24 - 2; |
4bc85c13 WYG |
3561 | |
3562 | /* Default value; 4 EDCA QOS priorities */ | |
3563 | hw->queues = 4; | |
3564 | ||
46bc8d4b SG |
3565 | if (il->bands[IEEE80211_BAND_2GHZ].n_channels) |
3566 | il->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
e7392364 | 3567 | &il->bands[IEEE80211_BAND_2GHZ]; |
4bc85c13 | 3568 | |
46bc8d4b SG |
3569 | if (il->bands[IEEE80211_BAND_5GHZ].n_channels) |
3570 | il->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
e7392364 | 3571 | &il->bands[IEEE80211_BAND_5GHZ]; |
4bc85c13 | 3572 | |
46bc8d4b | 3573 | il_leds_init(il); |
4bc85c13 | 3574 | |
46bc8d4b | 3575 | ret = ieee80211_register_hw(il->hw); |
4bc85c13 | 3576 | if (ret) { |
9406f797 | 3577 | IL_ERR("Failed to register hw (error %d)\n", ret); |
4bc85c13 WYG |
3578 | return ret; |
3579 | } | |
46bc8d4b | 3580 | il->mac80211_registered = 1; |
4bc85c13 WYG |
3581 | |
3582 | return 0; | |
3583 | } | |
3584 | ||
e7392364 SG |
3585 | static int |
3586 | il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
4bc85c13 | 3587 | { |
7c2cde2e | 3588 | int err = 0; |
46bc8d4b | 3589 | struct il_priv *il; |
4bc85c13 | 3590 | struct ieee80211_hw *hw; |
e2ebc833 SG |
3591 | struct il_cfg *cfg = (struct il_cfg *)(ent->driver_data); |
3592 | struct il3945_eeprom *eeprom; | |
4bc85c13 WYG |
3593 | unsigned long flags; |
3594 | ||
3595 | /*********************** | |
3596 | * 1. Allocating HW data | |
3597 | * ********************/ | |
3598 | ||
c39ae9fd SG |
3599 | hw = ieee80211_alloc_hw(sizeof(struct il_priv), &il3945_mac_ops); |
3600 | if (!hw) { | |
4bc85c13 WYG |
3601 | err = -ENOMEM; |
3602 | goto out; | |
3603 | } | |
46bc8d4b | 3604 | il = hw->priv; |
c39ae9fd | 3605 | il->hw = hw; |
4bc85c13 WYG |
3606 | SET_IEEE80211_DEV(hw, &pdev->dev); |
3607 | ||
d3175167 | 3608 | il->cmd_queue = IL39_CMD_QUEUE_NUM; |
4bc85c13 | 3609 | |
4bc85c13 WYG |
3610 | /* |
3611 | * Disabling hardware scan means that mac80211 will perform scans | |
3612 | * "the hard way", rather than using device's scan. | |
3613 | */ | |
e2ebc833 | 3614 | if (il3945_mod_params.disable_hw_scan) { |
58de00a4 | 3615 | D_INFO("Disabling hw_scan\n"); |
c39ae9fd | 3616 | il3945_mac_ops.hw_scan = NULL; |
4bc85c13 WYG |
3617 | } |
3618 | ||
58de00a4 | 3619 | D_INFO("*** LOAD DRIVER ***\n"); |
46bc8d4b | 3620 | il->cfg = cfg; |
c39ae9fd | 3621 | il->ops = &il3945_ops; |
46bc8d4b SG |
3622 | il->pci_dev = pdev; |
3623 | il->inta_mask = CSR_INI_SET_MASK; | |
4bc85c13 | 3624 | |
46bc8d4b | 3625 | if (il_alloc_traffic_mem(il)) |
9406f797 | 3626 | IL_ERR("Not enough memory to generate traffic log\n"); |
4bc85c13 WYG |
3627 | |
3628 | /*************************** | |
3629 | * 2. Initializing PCI bus | |
3630 | * *************************/ | |
e7392364 SG |
3631 | pci_disable_link_state(pdev, |
3632 | PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 | | |
3633 | PCIE_LINK_STATE_CLKPM); | |
4bc85c13 WYG |
3634 | |
3635 | if (pci_enable_device(pdev)) { | |
3636 | err = -ENODEV; | |
3637 | goto out_ieee80211_free_hw; | |
3638 | } | |
3639 | ||
3640 | pci_set_master(pdev); | |
3641 | ||
3642 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
3643 | if (!err) | |
3644 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); | |
3645 | if (err) { | |
9406f797 | 3646 | IL_WARN("No suitable DMA available.\n"); |
4bc85c13 WYG |
3647 | goto out_pci_disable_device; |
3648 | } | |
3649 | ||
46bc8d4b | 3650 | pci_set_drvdata(pdev, il); |
4bc85c13 WYG |
3651 | err = pci_request_regions(pdev, DRV_NAME); |
3652 | if (err) | |
3653 | goto out_pci_disable_device; | |
3654 | ||
3655 | /*********************** | |
3656 | * 3. Read REV Register | |
3657 | * ********************/ | |
46bc8d4b SG |
3658 | il->hw_base = pci_iomap(pdev, 0, 0); |
3659 | if (!il->hw_base) { | |
4bc85c13 WYG |
3660 | err = -ENODEV; |
3661 | goto out_pci_release_regions; | |
3662 | } | |
3663 | ||
58de00a4 | 3664 | D_INFO("pci_resource_len = 0x%08llx\n", |
e7392364 | 3665 | (unsigned long long)pci_resource_len(pdev, 0)); |
58de00a4 | 3666 | D_INFO("pci_resource_base = %p\n", il->hw_base); |
4bc85c13 WYG |
3667 | |
3668 | /* We disable the RETRY_TIMEOUT register (0x41) to keep | |
3669 | * PCI Tx retries from interfering with C3 CPU state */ | |
3670 | pci_write_config_byte(pdev, 0x41, 0x00); | |
3671 | ||
3672 | /* these spin locks will be used in apm_ops.init and EEPROM access | |
3673 | * we should init now | |
3674 | */ | |
46bc8d4b SG |
3675 | spin_lock_init(&il->reg_lock); |
3676 | spin_lock_init(&il->lock); | |
4bc85c13 WYG |
3677 | |
3678 | /* | |
3679 | * stop and reset the on-board processor just in case it is in a | |
3680 | * strange state ... like being left stranded by a primary kernel | |
3681 | * and this is now the kdump kernel trying to start up | |
3682 | */ | |
841b2cca | 3683 | _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
4bc85c13 WYG |
3684 | |
3685 | /*********************** | |
3686 | * 4. Read EEPROM | |
3687 | * ********************/ | |
3688 | ||
3689 | /* Read the EEPROM */ | |
46bc8d4b | 3690 | err = il_eeprom_init(il); |
4bc85c13 | 3691 | if (err) { |
9406f797 | 3692 | IL_ERR("Unable to init EEPROM\n"); |
4bc85c13 WYG |
3693 | goto out_iounmap; |
3694 | } | |
3695 | /* MAC Address location in EEPROM same for 3945/4965 */ | |
46bc8d4b | 3696 | eeprom = (struct il3945_eeprom *)il->eeprom; |
58de00a4 | 3697 | D_INFO("MAC address: %pM\n", eeprom->mac_address); |
46bc8d4b | 3698 | SET_IEEE80211_PERM_ADDR(il->hw, eeprom->mac_address); |
4bc85c13 WYG |
3699 | |
3700 | /*********************** | |
3701 | * 5. Setup HW Constants | |
3702 | * ********************/ | |
3703 | /* Device-specific setup */ | |
46bc8d4b | 3704 | if (il3945_hw_set_hw_params(il)) { |
9406f797 | 3705 | IL_ERR("failed to set hw settings\n"); |
4bc85c13 WYG |
3706 | goto out_eeprom_free; |
3707 | } | |
3708 | ||
3709 | /*********************** | |
46bc8d4b | 3710 | * 6. Setup il |
4bc85c13 WYG |
3711 | * ********************/ |
3712 | ||
46bc8d4b | 3713 | err = il3945_init_drv(il); |
4bc85c13 | 3714 | if (err) { |
9406f797 | 3715 | IL_ERR("initializing driver failed\n"); |
4bc85c13 WYG |
3716 | goto out_unset_hw_params; |
3717 | } | |
3718 | ||
e7392364 | 3719 | IL_INFO("Detected Intel Wireless WiFi Link %s\n", il->cfg->name); |
4bc85c13 WYG |
3720 | |
3721 | /*********************** | |
3722 | * 7. Setup Services | |
3723 | * ********************/ | |
3724 | ||
46bc8d4b SG |
3725 | spin_lock_irqsave(&il->lock, flags); |
3726 | il_disable_interrupts(il); | |
3727 | spin_unlock_irqrestore(&il->lock, flags); | |
4bc85c13 | 3728 | |
46bc8d4b | 3729 | pci_enable_msi(il->pci_dev); |
4bc85c13 | 3730 | |
e7392364 | 3731 | err = request_irq(il->pci_dev->irq, il_isr, IRQF_SHARED, DRV_NAME, il); |
4bc85c13 | 3732 | if (err) { |
9406f797 | 3733 | IL_ERR("Error allocating IRQ %d\n", il->pci_dev->irq); |
4bc85c13 WYG |
3734 | goto out_disable_msi; |
3735 | } | |
3736 | ||
e2ebc833 | 3737 | err = sysfs_create_group(&pdev->dev.kobj, &il3945_attribute_group); |
4bc85c13 | 3738 | if (err) { |
9406f797 | 3739 | IL_ERR("failed to create sysfs device attributes\n"); |
4bc85c13 WYG |
3740 | goto out_release_irq; |
3741 | } | |
3742 | ||
83007196 | 3743 | il_set_rxon_channel(il, &il->bands[IEEE80211_BAND_2GHZ].channels[5]); |
46bc8d4b | 3744 | il3945_setup_deferred_work(il); |
d0c72347 | 3745 | il3945_setup_handlers(il); |
46bc8d4b | 3746 | il_power_initialize(il); |
4bc85c13 WYG |
3747 | |
3748 | /********************************* | |
3749 | * 8. Setup and Register mac80211 | |
3750 | * *******************************/ | |
3751 | ||
46bc8d4b | 3752 | il_enable_interrupts(il); |
4bc85c13 | 3753 | |
46bc8d4b | 3754 | err = il3945_setup_mac(il); |
4bc85c13 | 3755 | if (err) |
e7392364 | 3756 | goto out_remove_sysfs; |
4bc85c13 | 3757 | |
46bc8d4b | 3758 | err = il_dbgfs_register(il, DRV_NAME); |
4bc85c13 | 3759 | if (err) |
e7392364 SG |
3760 | IL_ERR("failed to create debugfs files. Ignoring error: %d\n", |
3761 | err); | |
4bc85c13 WYG |
3762 | |
3763 | /* Start monitoring the killswitch */ | |
e7392364 | 3764 | queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, 2 * HZ); |
4bc85c13 WYG |
3765 | |
3766 | return 0; | |
3767 | ||
e7392364 | 3768 | out_remove_sysfs: |
46bc8d4b SG |
3769 | destroy_workqueue(il->workqueue); |
3770 | il->workqueue = NULL; | |
e2ebc833 | 3771 | sysfs_remove_group(&pdev->dev.kobj, &il3945_attribute_group); |
e7392364 | 3772 | out_release_irq: |
46bc8d4b | 3773 | free_irq(il->pci_dev->irq, il); |
e7392364 | 3774 | out_disable_msi: |
46bc8d4b SG |
3775 | pci_disable_msi(il->pci_dev); |
3776 | il_free_geos(il); | |
3777 | il_free_channel_map(il); | |
e7392364 | 3778 | out_unset_hw_params: |
46bc8d4b | 3779 | il3945_unset_hw_params(il); |
e7392364 | 3780 | out_eeprom_free: |
46bc8d4b | 3781 | il_eeprom_free(il); |
e7392364 | 3782 | out_iounmap: |
46bc8d4b | 3783 | pci_iounmap(pdev, il->hw_base); |
e7392364 | 3784 | out_pci_release_regions: |
4bc85c13 | 3785 | pci_release_regions(pdev); |
e7392364 | 3786 | out_pci_disable_device: |
4bc85c13 WYG |
3787 | pci_set_drvdata(pdev, NULL); |
3788 | pci_disable_device(pdev); | |
e7392364 | 3789 | out_ieee80211_free_hw: |
46bc8d4b SG |
3790 | il_free_traffic_mem(il); |
3791 | ieee80211_free_hw(il->hw); | |
e7392364 | 3792 | out: |
4bc85c13 WYG |
3793 | return err; |
3794 | } | |
3795 | ||
e7392364 SG |
3796 | static void __devexit |
3797 | il3945_pci_remove(struct pci_dev *pdev) | |
4bc85c13 | 3798 | { |
46bc8d4b | 3799 | struct il_priv *il = pci_get_drvdata(pdev); |
4bc85c13 WYG |
3800 | unsigned long flags; |
3801 | ||
46bc8d4b | 3802 | if (!il) |
4bc85c13 WYG |
3803 | return; |
3804 | ||
58de00a4 | 3805 | D_INFO("*** UNLOAD DRIVER ***\n"); |
4bc85c13 | 3806 | |
46bc8d4b | 3807 | il_dbgfs_unregister(il); |
4bc85c13 | 3808 | |
a6766ccd | 3809 | set_bit(S_EXIT_PENDING, &il->status); |
4bc85c13 | 3810 | |
46bc8d4b | 3811 | il_leds_exit(il); |
4bc85c13 | 3812 | |
46bc8d4b SG |
3813 | if (il->mac80211_registered) { |
3814 | ieee80211_unregister_hw(il->hw); | |
3815 | il->mac80211_registered = 0; | |
4bc85c13 | 3816 | } else { |
46bc8d4b | 3817 | il3945_down(il); |
4bc85c13 WYG |
3818 | } |
3819 | ||
3820 | /* | |
3821 | * Make sure device is reset to low power before unloading driver. | |
e2ebc833 SG |
3822 | * This may be redundant with il_down(), but there are paths to |
3823 | * run il_down() without calling apm_ops.stop(), and there are | |
3824 | * paths to avoid running il_down() at all before leaving driver. | |
4bc85c13 WYG |
3825 | * This (inexpensive) call *makes sure* device is reset. |
3826 | */ | |
46bc8d4b | 3827 | il_apm_stop(il); |
4bc85c13 WYG |
3828 | |
3829 | /* make sure we flush any pending irq or | |
3830 | * tasklet for the driver | |
3831 | */ | |
46bc8d4b SG |
3832 | spin_lock_irqsave(&il->lock, flags); |
3833 | il_disable_interrupts(il); | |
3834 | spin_unlock_irqrestore(&il->lock, flags); | |
4bc85c13 | 3835 | |
46bc8d4b | 3836 | il3945_synchronize_irq(il); |
4bc85c13 | 3837 | |
e2ebc833 | 3838 | sysfs_remove_group(&pdev->dev.kobj, &il3945_attribute_group); |
4bc85c13 | 3839 | |
46bc8d4b | 3840 | cancel_delayed_work_sync(&il->_3945.rfkill_poll); |
4bc85c13 | 3841 | |
46bc8d4b | 3842 | il3945_dealloc_ucode_pci(il); |
4bc85c13 | 3843 | |
46bc8d4b SG |
3844 | if (il->rxq.bd) |
3845 | il3945_rx_queue_free(il, &il->rxq); | |
3846 | il3945_hw_txq_ctx_free(il); | |
4bc85c13 | 3847 | |
46bc8d4b | 3848 | il3945_unset_hw_params(il); |
4bc85c13 WYG |
3849 | |
3850 | /*netif_stop_queue(dev); */ | |
46bc8d4b | 3851 | flush_workqueue(il->workqueue); |
4bc85c13 | 3852 | |
e2ebc833 | 3853 | /* ieee80211_unregister_hw calls il3945_mac_stop, which flushes |
46bc8d4b | 3854 | * il->workqueue... so we can't take down the workqueue |
4bc85c13 | 3855 | * until now... */ |
46bc8d4b SG |
3856 | destroy_workqueue(il->workqueue); |
3857 | il->workqueue = NULL; | |
3858 | il_free_traffic_mem(il); | |
4bc85c13 | 3859 | |
46bc8d4b | 3860 | free_irq(pdev->irq, il); |
4bc85c13 WYG |
3861 | pci_disable_msi(pdev); |
3862 | ||
46bc8d4b | 3863 | pci_iounmap(pdev, il->hw_base); |
4bc85c13 WYG |
3864 | pci_release_regions(pdev); |
3865 | pci_disable_device(pdev); | |
3866 | pci_set_drvdata(pdev, NULL); | |
3867 | ||
46bc8d4b SG |
3868 | il_free_channel_map(il); |
3869 | il_free_geos(il); | |
3870 | kfree(il->scan_cmd); | |
3871 | if (il->beacon_skb) | |
3872 | dev_kfree_skb(il->beacon_skb); | |
4bc85c13 | 3873 | |
46bc8d4b | 3874 | ieee80211_free_hw(il->hw); |
4bc85c13 WYG |
3875 | } |
3876 | ||
4bc85c13 WYG |
3877 | /***************************************************************************** |
3878 | * | |
3879 | * driver and module entry point | |
3880 | * | |
3881 | *****************************************************************************/ | |
3882 | ||
e2ebc833 | 3883 | static struct pci_driver il3945_driver = { |
4bc85c13 | 3884 | .name = DRV_NAME, |
e2ebc833 SG |
3885 | .id_table = il3945_hw_card_ids, |
3886 | .probe = il3945_pci_probe, | |
3887 | .remove = __devexit_p(il3945_pci_remove), | |
3888 | .driver.pm = IL_LEGACY_PM_OPS, | |
4bc85c13 WYG |
3889 | }; |
3890 | ||
e7392364 SG |
3891 | static int __init |
3892 | il3945_init(void) | |
4bc85c13 WYG |
3893 | { |
3894 | ||
3895 | int ret; | |
3896 | pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); | |
3897 | pr_info(DRV_COPYRIGHT "\n"); | |
3898 | ||
e2ebc833 | 3899 | ret = il3945_rate_control_register(); |
4bc85c13 WYG |
3900 | if (ret) { |
3901 | pr_err("Unable to register rate control algorithm: %d\n", ret); | |
3902 | return ret; | |
3903 | } | |
3904 | ||
e2ebc833 | 3905 | ret = pci_register_driver(&il3945_driver); |
4bc85c13 WYG |
3906 | if (ret) { |
3907 | pr_err("Unable to initialize PCI module\n"); | |
3908 | goto error_register; | |
3909 | } | |
3910 | ||
3911 | return ret; | |
3912 | ||
3913 | error_register: | |
e2ebc833 | 3914 | il3945_rate_control_unregister(); |
4bc85c13 WYG |
3915 | return ret; |
3916 | } | |
3917 | ||
e7392364 SG |
3918 | static void __exit |
3919 | il3945_exit(void) | |
4bc85c13 | 3920 | { |
e2ebc833 SG |
3921 | pci_unregister_driver(&il3945_driver); |
3922 | il3945_rate_control_unregister(); | |
4bc85c13 WYG |
3923 | } |
3924 | ||
d3175167 | 3925 | MODULE_FIRMWARE(IL3945_MODULE_FIRMWARE(IL3945_UCODE_API_MAX)); |
4bc85c13 | 3926 | |
e2ebc833 | 3927 | module_param_named(antenna, il3945_mod_params.antenna, int, S_IRUGO); |
4bc85c13 | 3928 | MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); |
e2ebc833 | 3929 | module_param_named(swcrypto, il3945_mod_params.sw_crypto, int, S_IRUGO); |
e7392364 SG |
3930 | MODULE_PARM_DESC(swcrypto, "using software crypto (default 1 [software])"); |
3931 | module_param_named(disable_hw_scan, il3945_mod_params.disable_hw_scan, int, | |
3932 | S_IRUGO); | |
0263aa45 | 3933 | MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 1)"); |
d3175167 | 3934 | #ifdef CONFIG_IWLEGACY_DEBUG |
d2ddf621 | 3935 | module_param_named(debug, il_debug_level, uint, S_IRUGO | S_IWUSR); |
4bc85c13 WYG |
3936 | MODULE_PARM_DESC(debug, "debug output mask"); |
3937 | #endif | |
e2ebc833 | 3938 | module_param_named(fw_restart, il3945_mod_params.restart_fw, int, S_IRUGO); |
be663ab6 | 3939 | MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); |
4bc85c13 | 3940 | |
e2ebc833 SG |
3941 | module_exit(il3945_exit); |
3942 | module_init(il3945_init); |