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5e6e3a92 BZ |
1 | /* |
2 | * Marvell Wireless LAN device driver: HW/FW Initialization | |
3 | * | |
4 | * Copyright (C) 2011, Marvell International Ltd. | |
5 | * | |
6 | * This software file (the "File") is distributed by Marvell International | |
7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
8 | * (the "License"). You may use, redistribute and/or modify this File in | |
9 | * accordance with the terms and conditions of the License, a copy of which | |
10 | * is available by writing to the Free Software Foundation, Inc., | |
11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
13 | * | |
14 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
16 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
17 | * this warranty disclaimer. | |
18 | */ | |
19 | ||
20 | #include "decl.h" | |
21 | #include "ioctl.h" | |
22 | #include "util.h" | |
23 | #include "fw.h" | |
24 | #include "main.h" | |
25 | #include "wmm.h" | |
26 | #include "11n.h" | |
27 | ||
28 | /* | |
29 | * This function adds a BSS priority table to the table list. | |
30 | * | |
31 | * The function allocates a new BSS priority table node and adds it to | |
32 | * the end of BSS priority table list, kept in driver memory. | |
33 | */ | |
34 | static int mwifiex_add_bss_prio_tbl(struct mwifiex_private *priv) | |
35 | { | |
36 | struct mwifiex_adapter *adapter = priv->adapter; | |
37 | struct mwifiex_bss_prio_node *bss_prio; | |
931f1584 | 38 | struct mwifiex_bss_prio_tbl *tbl = adapter->bss_prio_tbl; |
5e6e3a92 BZ |
39 | unsigned long flags; |
40 | ||
41 | bss_prio = kzalloc(sizeof(struct mwifiex_bss_prio_node), GFP_KERNEL); | |
42 | if (!bss_prio) { | |
43 | dev_err(adapter->dev, "%s: failed to alloc bss_prio\n", | |
931f1584 | 44 | __func__); |
b53575ec | 45 | return -ENOMEM; |
5e6e3a92 BZ |
46 | } |
47 | ||
48 | bss_prio->priv = priv; | |
49 | INIT_LIST_HEAD(&bss_prio->list); | |
931f1584 YAP |
50 | if (!tbl[priv->bss_priority].bss_prio_cur) |
51 | tbl[priv->bss_priority].bss_prio_cur = bss_prio; | |
52 | ||
53 | spin_lock_irqsave(&tbl[priv->bss_priority].bss_prio_lock, flags); | |
54 | list_add_tail(&bss_prio->list, &tbl[priv->bss_priority].bss_prio_head); | |
55 | spin_unlock_irqrestore(&tbl[priv->bss_priority].bss_prio_lock, flags); | |
5e6e3a92 | 56 | |
600f5d90 | 57 | return 0; |
5e6e3a92 BZ |
58 | } |
59 | ||
3249ba73 AK |
60 | static void scan_delay_timer_fn(unsigned long data) |
61 | { | |
62 | struct mwifiex_private *priv = (struct mwifiex_private *)data; | |
63 | struct mwifiex_adapter *adapter = priv->adapter; | |
64 | struct cmd_ctrl_node *cmd_node, *tmp_node; | |
65 | unsigned long flags; | |
66 | ||
bdd37bed AK |
67 | if (adapter->scan_delay_cnt == MWIFIEX_MAX_SCAN_DELAY_CNT) { |
68 | /* | |
69 | * Abort scan operation by cancelling all pending scan | |
70 | * commands | |
71 | */ | |
72 | spin_lock_irqsave(&adapter->scan_pending_q_lock, flags); | |
73 | list_for_each_entry_safe(cmd_node, tmp_node, | |
74 | &adapter->scan_pending_q, list) { | |
75 | list_del(&cmd_node->list); | |
76 | cmd_node->wait_q_enabled = false; | |
77 | mwifiex_insert_cmd_to_free_q(adapter, cmd_node); | |
78 | } | |
79 | spin_unlock_irqrestore(&adapter->scan_pending_q_lock, flags); | |
80 | ||
81 | spin_lock_irqsave(&adapter->mwifiex_cmd_lock, flags); | |
82 | adapter->scan_processing = false; | |
83 | adapter->scan_delay_cnt = 0; | |
84 | adapter->empty_tx_q_cnt = 0; | |
85 | spin_unlock_irqrestore(&adapter->mwifiex_cmd_lock, flags); | |
86 | ||
87 | if (priv->user_scan_cfg) { | |
88 | dev_dbg(priv->adapter->dev, | |
89 | "info: %s: scan aborted\n", __func__); | |
90 | cfg80211_scan_done(priv->scan_request, 1); | |
91 | priv->scan_request = NULL; | |
92 | kfree(priv->user_scan_cfg); | |
93 | priv->user_scan_cfg = NULL; | |
94 | } | |
95 | goto done; | |
96 | } | |
97 | ||
98 | if (!atomic_read(&priv->adapter->is_tx_received)) { | |
99 | adapter->empty_tx_q_cnt++; | |
100 | if (adapter->empty_tx_q_cnt == MWIFIEX_MAX_EMPTY_TX_Q_CNT) { | |
3249ba73 | 101 | /* |
bdd37bed AK |
102 | * No Tx traffic for 200msec. Get scan command from |
103 | * scan pending queue and put to cmd pending queue to | |
104 | * resume scan operation | |
3249ba73 | 105 | */ |
bdd37bed AK |
106 | adapter->scan_delay_cnt = 0; |
107 | adapter->empty_tx_q_cnt = 0; | |
3249ba73 | 108 | spin_lock_irqsave(&adapter->scan_pending_q_lock, flags); |
bdd37bed AK |
109 | cmd_node = list_first_entry(&adapter->scan_pending_q, |
110 | struct cmd_ctrl_node, list); | |
111 | list_del(&cmd_node->list); | |
3249ba73 AK |
112 | spin_unlock_irqrestore(&adapter->scan_pending_q_lock, |
113 | flags); | |
114 | ||
bdd37bed AK |
115 | mwifiex_insert_cmd_to_pending_q(adapter, cmd_node, |
116 | true); | |
117 | goto done; | |
3249ba73 AK |
118 | } |
119 | } else { | |
bdd37bed | 120 | adapter->empty_tx_q_cnt = 0; |
3249ba73 | 121 | } |
bdd37bed AK |
122 | |
123 | /* Delay scan operation further by 20msec */ | |
124 | mod_timer(&priv->scan_delay_timer, jiffies + | |
125 | msecs_to_jiffies(MWIFIEX_SCAN_DELAY_MSEC)); | |
126 | adapter->scan_delay_cnt++; | |
127 | ||
128 | done: | |
129 | if (atomic_read(&priv->adapter->is_tx_received)) | |
130 | atomic_set(&priv->adapter->is_tx_received, false); | |
131 | ||
132 | return; | |
3249ba73 AK |
133 | } |
134 | ||
5e6e3a92 BZ |
135 | /* |
136 | * This function initializes the private structure and sets default | |
137 | * values to the members. | |
138 | * | |
139 | * Additionally, it also initializes all the locks and sets up all the | |
140 | * lists. | |
141 | */ | |
142 | static int mwifiex_init_priv(struct mwifiex_private *priv) | |
143 | { | |
144 | u32 i; | |
5e6e3a92 BZ |
145 | |
146 | priv->media_connected = false; | |
147 | memset(priv->curr_addr, 0xff, ETH_ALEN); | |
148 | ||
149 | priv->pkt_tx_ctrl = 0; | |
93a1df48 | 150 | priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; |
5e6e3a92 BZ |
151 | priv->data_rate = 0; /* Initially indicate the rate as auto */ |
152 | priv->is_data_rate_auto = true; | |
153 | priv->bcn_avg_factor = DEFAULT_BCN_AVG_FACTOR; | |
154 | priv->data_avg_factor = DEFAULT_DATA_AVG_FACTOR; | |
155 | ||
5eb02e44 | 156 | priv->sec_info.wep_enabled = 0; |
f986b6d5 | 157 | priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM; |
2be50b8d | 158 | priv->sec_info.encryption_mode = 0; |
5e6e3a92 BZ |
159 | for (i = 0; i < ARRAY_SIZE(priv->wep_key); i++) |
160 | memset(&priv->wep_key[i], 0, sizeof(struct mwifiex_wep_key)); | |
161 | priv->wep_key_curr_index = 0; | |
162 | priv->curr_pkt_filter = HostCmd_ACT_MAC_RX_ON | HostCmd_ACT_MAC_TX_ON | | |
163 | HostCmd_ACT_MAC_ETHERNETII_ENABLE; | |
164 | ||
165 | priv->beacon_period = 100; /* beacon interval */ ; | |
166 | priv->attempted_bss_desc = NULL; | |
167 | memset(&priv->curr_bss_params, 0, sizeof(priv->curr_bss_params)); | |
168 | priv->listen_interval = MWIFIEX_DEFAULT_LISTEN_INTERVAL; | |
169 | ||
170 | memset(&priv->prev_ssid, 0, sizeof(priv->prev_ssid)); | |
171 | memset(&priv->prev_bssid, 0, sizeof(priv->prev_bssid)); | |
172 | memset(&priv->assoc_rsp_buf, 0, sizeof(priv->assoc_rsp_buf)); | |
173 | priv->assoc_rsp_size = 0; | |
174 | priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; | |
175 | priv->atim_window = 0; | |
176 | priv->adhoc_state = ADHOC_IDLE; | |
177 | priv->tx_power_level = 0; | |
178 | priv->max_tx_power_level = 0; | |
179 | priv->min_tx_power_level = 0; | |
180 | priv->tx_rate = 0; | |
181 | priv->rxpd_htinfo = 0; | |
182 | priv->rxpd_rate = 0; | |
183 | priv->rate_bitmap = 0; | |
184 | priv->data_rssi_last = 0; | |
185 | priv->data_rssi_avg = 0; | |
186 | priv->data_nf_avg = 0; | |
187 | priv->data_nf_last = 0; | |
188 | priv->bcn_rssi_last = 0; | |
189 | priv->bcn_rssi_avg = 0; | |
190 | priv->bcn_nf_avg = 0; | |
191 | priv->bcn_nf_last = 0; | |
192 | memset(&priv->wpa_ie, 0, sizeof(priv->wpa_ie)); | |
193 | memset(&priv->aes_key, 0, sizeof(priv->aes_key)); | |
194 | priv->wpa_ie_len = 0; | |
195 | priv->wpa_is_gtk_set = false; | |
196 | ||
197 | memset(&priv->assoc_tlv_buf, 0, sizeof(priv->assoc_tlv_buf)); | |
198 | priv->assoc_tlv_buf_len = 0; | |
199 | memset(&priv->wps, 0, sizeof(priv->wps)); | |
200 | memset(&priv->gen_ie_buf, 0, sizeof(priv->gen_ie_buf)); | |
201 | priv->gen_ie_buf_len = 0; | |
202 | memset(priv->vs_ie, 0, sizeof(priv->vs_ie)); | |
203 | ||
204 | priv->wmm_required = true; | |
205 | priv->wmm_enabled = false; | |
206 | priv->wmm_qosinfo = 0; | |
207 | priv->curr_bcn_buf = NULL; | |
208 | priv->curr_bcn_size = 0; | |
13d7ba78 AP |
209 | priv->wps_ie = NULL; |
210 | priv->wps_ie_len = 0; | |
c8258913 | 211 | priv->ap_11n_enabled = 0; |
5e6e3a92 BZ |
212 | |
213 | priv->scan_block = false; | |
214 | ||
3249ba73 AK |
215 | setup_timer(&priv->scan_delay_timer, scan_delay_timer_fn, |
216 | (unsigned long)priv); | |
217 | ||
636c4598 | 218 | return mwifiex_add_bss_prio_tbl(priv); |
5e6e3a92 BZ |
219 | } |
220 | ||
221 | /* | |
222 | * This function allocates buffers for members of the adapter | |
223 | * structure. | |
224 | * | |
225 | * The memory allocated includes scan table, command buffers, and | |
226 | * sleep confirm command buffer. In addition, the queues are | |
227 | * also initialized. | |
228 | */ | |
229 | static int mwifiex_allocate_adapter(struct mwifiex_adapter *adapter) | |
230 | { | |
270e58e8 | 231 | int ret; |
5e6e3a92 BZ |
232 | |
233 | /* Allocate command buffer */ | |
234 | ret = mwifiex_alloc_cmd_buffer(adapter); | |
235 | if (ret) { | |
236 | dev_err(adapter->dev, "%s: failed to alloc cmd buffer\n", | |
931f1584 | 237 | __func__); |
5e6e3a92 BZ |
238 | return -1; |
239 | } | |
240 | ||
241 | adapter->sleep_cfm = | |
7cc5eb62 | 242 | dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm) |
931f1584 | 243 | + INTF_HEADER_LEN); |
5e6e3a92 BZ |
244 | |
245 | if (!adapter->sleep_cfm) { | |
246 | dev_err(adapter->dev, "%s: failed to alloc sleep cfm" | |
247 | " cmd buffer\n", __func__); | |
248 | return -1; | |
249 | } | |
250 | skb_reserve(adapter->sleep_cfm, INTF_HEADER_LEN); | |
251 | ||
252 | return 0; | |
253 | } | |
254 | ||
255 | /* | |
256 | * This function initializes the adapter structure and sets default | |
257 | * values to the members of adapter. | |
258 | * | |
259 | * This also initializes the WMM related parameters in the driver private | |
260 | * structures. | |
261 | */ | |
262 | static void mwifiex_init_adapter(struct mwifiex_adapter *adapter) | |
263 | { | |
7cc5eb62 | 264 | struct mwifiex_opt_sleep_confirm *sleep_cfm_buf = NULL; |
5e6e3a92 | 265 | |
7cc5eb62 | 266 | skb_put(adapter->sleep_cfm, sizeof(struct mwifiex_opt_sleep_confirm)); |
5e6e3a92 BZ |
267 | |
268 | adapter->cmd_sent = false; | |
d930faee | 269 | |
4daffe35 | 270 | if (adapter->iface_type == MWIFIEX_SDIO) |
d930faee | 271 | adapter->data_sent = true; |
4daffe35 AK |
272 | else |
273 | adapter->data_sent = false; | |
d930faee | 274 | |
5e6e3a92 BZ |
275 | adapter->cmd_resp_received = false; |
276 | adapter->event_received = false; | |
277 | adapter->data_received = false; | |
278 | ||
279 | adapter->surprise_removed = false; | |
280 | ||
281 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; | |
282 | ||
283 | adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; | |
284 | adapter->ps_state = PS_STATE_AWAKE; | |
285 | adapter->need_to_wakeup = false; | |
286 | ||
287 | adapter->scan_mode = HostCmd_BSS_MODE_ANY; | |
288 | adapter->specific_scan_time = MWIFIEX_SPECIFIC_SCAN_CHAN_TIME; | |
289 | adapter->active_scan_time = MWIFIEX_ACTIVE_SCAN_CHAN_TIME; | |
290 | adapter->passive_scan_time = MWIFIEX_PASSIVE_SCAN_CHAN_TIME; | |
291 | ||
5e6e3a92 BZ |
292 | adapter->scan_probes = 1; |
293 | ||
5e6e3a92 BZ |
294 | adapter->multiple_dtim = 1; |
295 | ||
296 | adapter->local_listen_interval = 0; /* default value in firmware | |
297 | will be used */ | |
298 | ||
299 | adapter->is_deep_sleep = false; | |
300 | ||
301 | adapter->delay_null_pkt = false; | |
302 | adapter->delay_to_ps = 1000; | |
303 | adapter->enhanced_ps_mode = PS_MODE_AUTO; | |
304 | ||
305 | adapter->gen_null_pkt = false; /* Disable NULL Pkg generation by | |
306 | default */ | |
307 | adapter->pps_uapsd_mode = false; /* Disable pps/uapsd mode by | |
308 | default */ | |
309 | adapter->pm_wakeup_card_req = false; | |
310 | ||
311 | adapter->pm_wakeup_fw_try = false; | |
312 | ||
313 | adapter->max_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
314 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
315 | adapter->curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
316 | ||
317 | adapter->is_hs_configured = false; | |
318 | adapter->hs_cfg.conditions = cpu_to_le32(HOST_SLEEP_CFG_COND_DEF); | |
319 | adapter->hs_cfg.gpio = HOST_SLEEP_CFG_GPIO_DEF; | |
320 | adapter->hs_cfg.gap = HOST_SLEEP_CFG_GAP_DEF; | |
321 | adapter->hs_activated = false; | |
322 | ||
323 | memset(adapter->event_body, 0, sizeof(adapter->event_body)); | |
324 | adapter->hw_dot_11n_dev_cap = 0; | |
325 | adapter->hw_dev_mcs_support = 0; | |
21c3ba34 | 326 | adapter->sec_chan_offset = 0; |
5e6e3a92 BZ |
327 | adapter->adhoc_11n_enabled = false; |
328 | ||
329 | mwifiex_wmm_init(adapter); | |
330 | ||
331 | if (adapter->sleep_cfm) { | |
8ed13033 YAP |
332 | sleep_cfm_buf = (struct mwifiex_opt_sleep_confirm *) |
333 | adapter->sleep_cfm->data; | |
7cc5eb62 AK |
334 | memset(sleep_cfm_buf, 0, adapter->sleep_cfm->len); |
335 | sleep_cfm_buf->command = | |
336 | cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH); | |
337 | sleep_cfm_buf->size = | |
338 | cpu_to_le16(adapter->sleep_cfm->len); | |
339 | sleep_cfm_buf->result = 0; | |
340 | sleep_cfm_buf->action = cpu_to_le16(SLEEP_CONFIRM); | |
341 | sleep_cfm_buf->resp_ctrl = cpu_to_le16(RESP_NEEDED); | |
5e6e3a92 BZ |
342 | } |
343 | memset(&adapter->sleep_params, 0, sizeof(adapter->sleep_params)); | |
344 | memset(&adapter->sleep_period, 0, sizeof(adapter->sleep_period)); | |
345 | adapter->tx_lock_flag = false; | |
346 | adapter->null_pkt_interval = 0; | |
347 | adapter->fw_bands = 0; | |
348 | adapter->config_bands = 0; | |
349 | adapter->adhoc_start_band = 0; | |
350 | adapter->scan_channels = NULL; | |
351 | adapter->fw_release_number = 0; | |
352 | adapter->fw_cap_info = 0; | |
353 | memset(&adapter->upld_buf, 0, sizeof(adapter->upld_buf)); | |
354 | adapter->event_cause = 0; | |
355 | adapter->region_code = 0; | |
356 | adapter->bcn_miss_time_out = DEFAULT_BCN_MISS_TIMEOUT; | |
357 | adapter->adhoc_awake_period = 0; | |
358 | memset(&adapter->arp_filter, 0, sizeof(adapter->arp_filter)); | |
359 | adapter->arp_filter_size = 0; | |
ede98bfa | 360 | adapter->max_mgmt_ie_index = MAX_MGMT_IE_INDEX; |
bdd37bed | 361 | adapter->empty_tx_q_cnt = 0; |
5e6e3a92 BZ |
362 | } |
363 | ||
bbea3bc4 AP |
364 | /* |
365 | * This function sets trans_start per tx_queue | |
366 | */ | |
367 | void mwifiex_set_trans_start(struct net_device *dev) | |
368 | { | |
369 | int i; | |
370 | ||
371 | for (i = 0; i < dev->num_tx_queues; i++) | |
372 | netdev_get_tx_queue(dev, i)->trans_start = jiffies; | |
373 | ||
374 | dev->trans_start = jiffies; | |
375 | } | |
376 | ||
377 | /* | |
378 | * This function wakes up all queues in net_device | |
379 | */ | |
380 | void mwifiex_wake_up_net_dev_queue(struct net_device *netdev, | |
381 | struct mwifiex_adapter *adapter) | |
382 | { | |
383 | unsigned long dev_queue_flags; | |
384 | ||
385 | spin_lock_irqsave(&adapter->queue_lock, dev_queue_flags); | |
386 | netif_tx_wake_all_queues(netdev); | |
387 | spin_unlock_irqrestore(&adapter->queue_lock, dev_queue_flags); | |
388 | } | |
389 | ||
390 | /* | |
391 | * This function stops all queues in net_device | |
392 | */ | |
393 | void mwifiex_stop_net_dev_queue(struct net_device *netdev, | |
394 | struct mwifiex_adapter *adapter) | |
395 | { | |
396 | unsigned long dev_queue_flags; | |
397 | ||
398 | spin_lock_irqsave(&adapter->queue_lock, dev_queue_flags); | |
399 | netif_tx_stop_all_queues(netdev); | |
400 | spin_unlock_irqrestore(&adapter->queue_lock, dev_queue_flags); | |
401 | } | |
402 | ||
711825a0 AK |
403 | /* |
404 | * This function releases the lock variables and frees the locks and | |
405 | * associated locks. | |
406 | */ | |
407 | static void mwifiex_free_lock_list(struct mwifiex_adapter *adapter) | |
408 | { | |
409 | struct mwifiex_private *priv; | |
410 | s32 i, j; | |
411 | ||
412 | /* Free lists */ | |
413 | list_del(&adapter->cmd_free_q); | |
414 | list_del(&adapter->cmd_pending_q); | |
415 | list_del(&adapter->scan_pending_q); | |
416 | ||
417 | for (i = 0; i < adapter->priv_num; i++) | |
418 | list_del(&adapter->bss_prio_tbl[i].bss_prio_head); | |
419 | ||
420 | for (i = 0; i < adapter->priv_num; i++) { | |
421 | if (adapter->priv[i]) { | |
422 | priv = adapter->priv[i]; | |
423 | for (j = 0; j < MAX_NUM_TID; ++j) | |
424 | list_del(&priv->wmm.tid_tbl_ptr[j].ra_list); | |
425 | list_del(&priv->tx_ba_stream_tbl_ptr); | |
426 | list_del(&priv->rx_reorder_tbl_ptr); | |
427 | } | |
428 | } | |
429 | } | |
430 | ||
5e6e3a92 BZ |
431 | /* |
432 | * This function frees the adapter structure. | |
433 | * | |
434 | * The freeing operation is done recursively, by canceling all | |
435 | * pending commands, freeing the member buffers previously | |
436 | * allocated (command buffers, scan table buffer, sleep confirm | |
437 | * command buffer), stopping the timers and calling the cleanup | |
438 | * routines for every interface, before the actual adapter | |
439 | * structure is freed. | |
440 | */ | |
441 | static void | |
442 | mwifiex_free_adapter(struct mwifiex_adapter *adapter) | |
443 | { | |
444 | if (!adapter) { | |
445 | pr_err("%s: adapter is NULL\n", __func__); | |
446 | return; | |
447 | } | |
448 | ||
449 | mwifiex_cancel_all_pending_cmd(adapter); | |
450 | ||
451 | /* Free lock variables */ | |
452 | mwifiex_free_lock_list(adapter); | |
453 | ||
454 | /* Free command buffer */ | |
455 | dev_dbg(adapter->dev, "info: free cmd buffer\n"); | |
456 | mwifiex_free_cmd_buffer(adapter); | |
457 | ||
458 | del_timer(&adapter->cmd_timer); | |
459 | ||
460 | dev_dbg(adapter->dev, "info: free scan table\n"); | |
5e6e3a92 | 461 | |
4daffe35 AK |
462 | if (adapter->if_ops.cleanup_if) |
463 | adapter->if_ops.cleanup_if(adapter); | |
5e6e3a92 | 464 | |
2da8cbf8 AK |
465 | if (adapter->sleep_cfm) |
466 | dev_kfree_skb_any(adapter->sleep_cfm); | |
5e6e3a92 BZ |
467 | } |
468 | ||
469 | /* | |
470 | * This function intializes the lock variables and | |
471 | * the list heads. | |
472 | */ | |
473 | int mwifiex_init_lock_list(struct mwifiex_adapter *adapter) | |
474 | { | |
270e58e8 YAP |
475 | struct mwifiex_private *priv; |
476 | s32 i, j; | |
5e6e3a92 BZ |
477 | |
478 | spin_lock_init(&adapter->mwifiex_lock); | |
479 | spin_lock_init(&adapter->int_lock); | |
480 | spin_lock_init(&adapter->main_proc_lock); | |
481 | spin_lock_init(&adapter->mwifiex_cmd_lock); | |
bbea3bc4 | 482 | spin_lock_init(&adapter->queue_lock); |
5e6e3a92 BZ |
483 | for (i = 0; i < adapter->priv_num; i++) { |
484 | if (adapter->priv[i]) { | |
485 | priv = adapter->priv[i]; | |
486 | spin_lock_init(&priv->rx_pkt_lock); | |
487 | spin_lock_init(&priv->wmm.ra_list_spinlock); | |
488 | spin_lock_init(&priv->curr_bcn_buf_lock); | |
489 | } | |
490 | } | |
491 | ||
492 | /* Initialize cmd_free_q */ | |
493 | INIT_LIST_HEAD(&adapter->cmd_free_q); | |
494 | /* Initialize cmd_pending_q */ | |
495 | INIT_LIST_HEAD(&adapter->cmd_pending_q); | |
496 | /* Initialize scan_pending_q */ | |
497 | INIT_LIST_HEAD(&adapter->scan_pending_q); | |
498 | ||
499 | spin_lock_init(&adapter->cmd_free_q_lock); | |
500 | spin_lock_init(&adapter->cmd_pending_q_lock); | |
501 | spin_lock_init(&adapter->scan_pending_q_lock); | |
502 | ||
4daffe35 AK |
503 | skb_queue_head_init(&adapter->usb_rx_data_q); |
504 | ||
5e6e3a92 BZ |
505 | for (i = 0; i < adapter->priv_num; ++i) { |
506 | INIT_LIST_HEAD(&adapter->bss_prio_tbl[i].bss_prio_head); | |
507 | adapter->bss_prio_tbl[i].bss_prio_cur = NULL; | |
508 | spin_lock_init(&adapter->bss_prio_tbl[i].bss_prio_lock); | |
509 | } | |
510 | ||
511 | for (i = 0; i < adapter->priv_num; i++) { | |
512 | if (!adapter->priv[i]) | |
513 | continue; | |
514 | priv = adapter->priv[i]; | |
515 | for (j = 0; j < MAX_NUM_TID; ++j) { | |
516 | INIT_LIST_HEAD(&priv->wmm.tid_tbl_ptr[j].ra_list); | |
517 | spin_lock_init(&priv->wmm.tid_tbl_ptr[j].tid_tbl_lock); | |
518 | } | |
519 | INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr); | |
520 | INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr); | |
521 | ||
522 | spin_lock_init(&priv->tx_ba_stream_tbl_lock); | |
523 | spin_lock_init(&priv->rx_reorder_tbl_lock); | |
524 | } | |
525 | ||
526 | return 0; | |
527 | } | |
528 | ||
5e6e3a92 BZ |
529 | /* |
530 | * This function initializes the firmware. | |
531 | * | |
532 | * The following operations are performed sequentially - | |
533 | * - Allocate adapter structure | |
534 | * - Initialize the adapter structure | |
535 | * - Initialize the private structure | |
536 | * - Add BSS priority tables to the adapter structure | |
537 | * - For each interface, send the init commands to firmware | |
538 | * - Send the first command in command pending queue, if available | |
539 | */ | |
540 | int mwifiex_init_fw(struct mwifiex_adapter *adapter) | |
541 | { | |
270e58e8 YAP |
542 | int ret; |
543 | struct mwifiex_private *priv; | |
544 | u8 i, first_sta = true; | |
5e6e3a92 BZ |
545 | int is_cmd_pend_q_empty; |
546 | unsigned long flags; | |
547 | ||
548 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; | |
549 | ||
550 | /* Allocate memory for member of adapter structure */ | |
551 | ret = mwifiex_allocate_adapter(adapter); | |
552 | if (ret) | |
553 | return -1; | |
554 | ||
555 | /* Initialize adapter structure */ | |
556 | mwifiex_init_adapter(adapter); | |
557 | ||
558 | for (i = 0; i < adapter->priv_num; i++) { | |
559 | if (adapter->priv[i]) { | |
560 | priv = adapter->priv[i]; | |
561 | ||
562 | /* Initialize private structure */ | |
563 | ret = mwifiex_init_priv(priv); | |
564 | if (ret) | |
565 | return -1; | |
566 | } | |
567 | } | |
568 | for (i = 0; i < adapter->priv_num; i++) { | |
569 | if (adapter->priv[i]) { | |
570 | ret = mwifiex_sta_init_cmd(adapter->priv[i], first_sta); | |
571 | if (ret == -1) | |
572 | return -1; | |
573 | ||
574 | first_sta = false; | |
575 | } | |
576 | } | |
577 | ||
578 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
579 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
580 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
581 | if (!is_cmd_pend_q_empty) { | |
582 | /* Send the first command in queue and return */ | |
583 | if (mwifiex_main_process(adapter) != -1) | |
584 | ret = -EINPROGRESS; | |
585 | } else { | |
586 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
587 | } | |
588 | ||
589 | return ret; | |
590 | } | |
591 | ||
592 | /* | |
593 | * This function deletes the BSS priority tables. | |
594 | * | |
595 | * The function traverses through all the allocated BSS priority nodes | |
596 | * in every BSS priority table and frees them. | |
597 | */ | |
598 | static void mwifiex_delete_bss_prio_tbl(struct mwifiex_private *priv) | |
599 | { | |
600 | int i; | |
601 | struct mwifiex_adapter *adapter = priv->adapter; | |
270e58e8 | 602 | struct mwifiex_bss_prio_node *bssprio_node, *tmp_node, **cur; |
5e6e3a92 | 603 | struct list_head *head; |
931f1584 | 604 | spinlock_t *lock; /* bss priority lock */ |
5e6e3a92 BZ |
605 | unsigned long flags; |
606 | ||
607 | for (i = 0; i < adapter->priv_num; ++i) { | |
608 | head = &adapter->bss_prio_tbl[i].bss_prio_head; | |
609 | cur = &adapter->bss_prio_tbl[i].bss_prio_cur; | |
610 | lock = &adapter->bss_prio_tbl[i].bss_prio_lock; | |
611 | dev_dbg(adapter->dev, "info: delete BSS priority table," | |
9da9a3b2 YAP |
612 | " bss_type = %d, bss_num = %d, i = %d," |
613 | " head = %p, cur = %p\n", | |
614 | priv->bss_type, priv->bss_num, i, head, *cur); | |
5e6e3a92 BZ |
615 | if (*cur) { |
616 | spin_lock_irqsave(lock, flags); | |
617 | if (list_empty(head)) { | |
618 | spin_unlock_irqrestore(lock, flags); | |
619 | continue; | |
620 | } | |
621 | bssprio_node = list_first_entry(head, | |
622 | struct mwifiex_bss_prio_node, list); | |
623 | spin_unlock_irqrestore(lock, flags); | |
624 | ||
625 | list_for_each_entry_safe(bssprio_node, tmp_node, head, | |
626 | list) { | |
627 | if (bssprio_node->priv == priv) { | |
628 | dev_dbg(adapter->dev, "info: Delete " | |
629 | "node %p, next = %p\n", | |
630 | bssprio_node, tmp_node); | |
631 | spin_lock_irqsave(lock, flags); | |
632 | list_del(&bssprio_node->list); | |
633 | spin_unlock_irqrestore(lock, flags); | |
634 | kfree(bssprio_node); | |
635 | } | |
636 | } | |
637 | *cur = (struct mwifiex_bss_prio_node *)head; | |
638 | } | |
639 | } | |
640 | } | |
641 | ||
642 | /* | |
643 | * This function is used to shutdown the driver. | |
644 | * | |
645 | * The following operations are performed sequentially - | |
646 | * - Check if already shut down | |
647 | * - Make sure the main process has stopped | |
648 | * - Clean up the Tx and Rx queues | |
649 | * - Delete BSS priority tables | |
650 | * - Free the adapter | |
651 | * - Notify completion | |
652 | */ | |
653 | int | |
654 | mwifiex_shutdown_drv(struct mwifiex_adapter *adapter) | |
655 | { | |
656 | int ret = -EINPROGRESS; | |
270e58e8 YAP |
657 | struct mwifiex_private *priv; |
658 | s32 i; | |
5e6e3a92 | 659 | unsigned long flags; |
4daffe35 | 660 | struct sk_buff *skb; |
5e6e3a92 BZ |
661 | |
662 | /* mwifiex already shutdown */ | |
663 | if (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY) | |
664 | return 0; | |
665 | ||
666 | adapter->hw_status = MWIFIEX_HW_STATUS_CLOSING; | |
667 | /* wait for mwifiex_process to complete */ | |
668 | if (adapter->mwifiex_processing) { | |
669 | dev_warn(adapter->dev, "main process is still running\n"); | |
670 | return ret; | |
671 | } | |
672 | ||
673 | /* shut down mwifiex */ | |
674 | dev_dbg(adapter->dev, "info: shutdown mwifiex...\n"); | |
675 | ||
676 | /* Clean up Tx/Rx queues and delete BSS priority table */ | |
677 | for (i = 0; i < adapter->priv_num; i++) { | |
678 | if (adapter->priv[i]) { | |
679 | priv = adapter->priv[i]; | |
680 | ||
681 | mwifiex_clean_txrx(priv); | |
682 | mwifiex_delete_bss_prio_tbl(priv); | |
683 | } | |
684 | } | |
685 | ||
686 | spin_lock_irqsave(&adapter->mwifiex_lock, flags); | |
687 | ||
4daffe35 AK |
688 | if (adapter->if_ops.data_complete) { |
689 | while ((skb = skb_dequeue(&adapter->usb_rx_data_q))) { | |
690 | struct mwifiex_rxinfo *rx_info = MWIFIEX_SKB_RXCB(skb); | |
691 | ||
692 | priv = adapter->priv[rx_info->bss_num]; | |
693 | if (priv) | |
694 | priv->stats.rx_dropped++; | |
695 | ||
696 | adapter->if_ops.data_complete(adapter, skb); | |
697 | } | |
698 | } | |
699 | ||
5e6e3a92 BZ |
700 | /* Free adapter structure */ |
701 | mwifiex_free_adapter(adapter); | |
702 | ||
703 | spin_unlock_irqrestore(&adapter->mwifiex_lock, flags); | |
704 | ||
705 | /* Notify completion */ | |
706 | ret = mwifiex_shutdown_fw_complete(adapter); | |
707 | ||
708 | return ret; | |
709 | } | |
710 | ||
711 | /* | |
712 | * This function downloads the firmware to the card. | |
713 | * | |
714 | * The actual download is preceded by two sanity checks - | |
715 | * - Check if firmware is already running | |
716 | * - Check if the interface is the winner to download the firmware | |
717 | * | |
718 | * ...and followed by another - | |
719 | * - Check if the firmware is downloaded successfully | |
720 | * | |
721 | * After download is successfully completed, the host interrupts are enabled. | |
722 | */ | |
723 | int mwifiex_dnld_fw(struct mwifiex_adapter *adapter, | |
724 | struct mwifiex_fw_image *pmfw) | |
725 | { | |
d930faee | 726 | int ret; |
5e6e3a92 | 727 | u32 poll_num = 1; |
5e6e3a92 | 728 | |
4daffe35 AK |
729 | if (adapter->if_ops.check_fw_status) { |
730 | adapter->winner = 0; | |
d930faee | 731 | |
4daffe35 AK |
732 | /* check if firmware is already running */ |
733 | ret = adapter->if_ops.check_fw_status(adapter, poll_num); | |
734 | if (!ret) { | |
735 | dev_notice(adapter->dev, | |
736 | "WLAN FW already running! Skip FW dnld\n"); | |
737 | goto done; | |
738 | } | |
739 | ||
740 | poll_num = MAX_FIRMWARE_POLL_TRIES; | |
741 | ||
742 | /* check if we are the winner for downloading FW */ | |
743 | if (!adapter->winner) { | |
744 | dev_notice(adapter->dev, | |
745 | "FW already running! Skip FW dnld\n"); | |
746 | poll_num = MAX_MULTI_INTERFACE_POLL_TRIES; | |
747 | goto poll_fw; | |
748 | } | |
5e6e3a92 | 749 | } |
4daffe35 | 750 | |
5e6e3a92 BZ |
751 | if (pmfw) { |
752 | /* Download firmware with helper */ | |
753 | ret = adapter->if_ops.prog_fw(adapter, pmfw); | |
754 | if (ret) { | |
755 | dev_err(adapter->dev, "prog_fw failed ret=%#x\n", ret); | |
756 | return ret; | |
757 | } | |
758 | } | |
759 | ||
760 | poll_fw: | |
761 | /* Check if the firmware is downloaded successfully or not */ | |
d930faee | 762 | ret = adapter->if_ops.check_fw_status(adapter, poll_num); |
5e6e3a92 BZ |
763 | if (ret) { |
764 | dev_err(adapter->dev, "FW failed to be active in time\n"); | |
765 | return -1; | |
766 | } | |
767 | done: | |
768 | /* re-enable host interrupt for mwifiex after fw dnld is successful */ | |
4daffe35 AK |
769 | if (adapter->if_ops.enable_int) |
770 | adapter->if_ops.enable_int(adapter); | |
771 | ||
5e6e3a92 BZ |
772 | return ret; |
773 | } |