Commit | Line | Data |
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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); | |
0d2e7a5c | 42 | if (!bss_prio) |
b53575ec | 43 | return -ENOMEM; |
5e6e3a92 BZ |
44 | |
45 | bss_prio->priv = priv; | |
46 | INIT_LIST_HEAD(&bss_prio->list); | |
931f1584 YAP |
47 | |
48 | spin_lock_irqsave(&tbl[priv->bss_priority].bss_prio_lock, flags); | |
49 | list_add_tail(&bss_prio->list, &tbl[priv->bss_priority].bss_prio_head); | |
50 | spin_unlock_irqrestore(&tbl[priv->bss_priority].bss_prio_lock, flags); | |
5e6e3a92 | 51 | |
600f5d90 | 52 | return 0; |
5e6e3a92 BZ |
53 | } |
54 | ||
55 | /* | |
56 | * This function initializes the private structure and sets default | |
57 | * values to the members. | |
58 | * | |
59 | * Additionally, it also initializes all the locks and sets up all the | |
60 | * lists. | |
61 | */ | |
9197ab9e | 62 | int mwifiex_init_priv(struct mwifiex_private *priv) |
5e6e3a92 BZ |
63 | { |
64 | u32 i; | |
5e6e3a92 BZ |
65 | |
66 | priv->media_connected = false; | |
67 | memset(priv->curr_addr, 0xff, ETH_ALEN); | |
68 | ||
69 | priv->pkt_tx_ctrl = 0; | |
93a1df48 | 70 | priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; |
5e6e3a92 BZ |
71 | priv->data_rate = 0; /* Initially indicate the rate as auto */ |
72 | priv->is_data_rate_auto = true; | |
73 | priv->bcn_avg_factor = DEFAULT_BCN_AVG_FACTOR; | |
74 | priv->data_avg_factor = DEFAULT_DATA_AVG_FACTOR; | |
75 | ||
5eb02e44 | 76 | priv->sec_info.wep_enabled = 0; |
f986b6d5 | 77 | priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM; |
2be50b8d | 78 | priv->sec_info.encryption_mode = 0; |
5e6e3a92 BZ |
79 | for (i = 0; i < ARRAY_SIZE(priv->wep_key); i++) |
80 | memset(&priv->wep_key[i], 0, sizeof(struct mwifiex_wep_key)); | |
81 | priv->wep_key_curr_index = 0; | |
82 | priv->curr_pkt_filter = HostCmd_ACT_MAC_RX_ON | HostCmd_ACT_MAC_TX_ON | | |
83 | HostCmd_ACT_MAC_ETHERNETII_ENABLE; | |
84 | ||
85 | priv->beacon_period = 100; /* beacon interval */ ; | |
86 | priv->attempted_bss_desc = NULL; | |
87 | memset(&priv->curr_bss_params, 0, sizeof(priv->curr_bss_params)); | |
88 | priv->listen_interval = MWIFIEX_DEFAULT_LISTEN_INTERVAL; | |
89 | ||
90 | memset(&priv->prev_ssid, 0, sizeof(priv->prev_ssid)); | |
91 | memset(&priv->prev_bssid, 0, sizeof(priv->prev_bssid)); | |
92 | memset(&priv->assoc_rsp_buf, 0, sizeof(priv->assoc_rsp_buf)); | |
93 | priv->assoc_rsp_size = 0; | |
94 | priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; | |
95 | priv->atim_window = 0; | |
96 | priv->adhoc_state = ADHOC_IDLE; | |
97 | priv->tx_power_level = 0; | |
98 | priv->max_tx_power_level = 0; | |
99 | priv->min_tx_power_level = 0; | |
100 | priv->tx_rate = 0; | |
101 | priv->rxpd_htinfo = 0; | |
102 | priv->rxpd_rate = 0; | |
103 | priv->rate_bitmap = 0; | |
104 | priv->data_rssi_last = 0; | |
105 | priv->data_rssi_avg = 0; | |
106 | priv->data_nf_avg = 0; | |
107 | priv->data_nf_last = 0; | |
108 | priv->bcn_rssi_last = 0; | |
109 | priv->bcn_rssi_avg = 0; | |
110 | priv->bcn_nf_avg = 0; | |
111 | priv->bcn_nf_last = 0; | |
112 | memset(&priv->wpa_ie, 0, sizeof(priv->wpa_ie)); | |
113 | memset(&priv->aes_key, 0, sizeof(priv->aes_key)); | |
114 | priv->wpa_ie_len = 0; | |
115 | priv->wpa_is_gtk_set = false; | |
116 | ||
117 | memset(&priv->assoc_tlv_buf, 0, sizeof(priv->assoc_tlv_buf)); | |
118 | priv->assoc_tlv_buf_len = 0; | |
119 | memset(&priv->wps, 0, sizeof(priv->wps)); | |
120 | memset(&priv->gen_ie_buf, 0, sizeof(priv->gen_ie_buf)); | |
121 | priv->gen_ie_buf_len = 0; | |
122 | memset(priv->vs_ie, 0, sizeof(priv->vs_ie)); | |
123 | ||
124 | priv->wmm_required = true; | |
125 | priv->wmm_enabled = false; | |
126 | priv->wmm_qosinfo = 0; | |
127 | priv->curr_bcn_buf = NULL; | |
128 | priv->curr_bcn_size = 0; | |
13d7ba78 AP |
129 | priv->wps_ie = NULL; |
130 | priv->wps_ie_len = 0; | |
c8258913 | 131 | priv->ap_11n_enabled = 0; |
7feb4c48 | 132 | memset(&priv->roc_cfg, 0, sizeof(priv->roc_cfg)); |
5e6e3a92 BZ |
133 | |
134 | priv->scan_block = false; | |
135 | ||
b887664d AK |
136 | priv->csa_chan = 0; |
137 | priv->csa_expire_time = 0; | |
138 | ||
636c4598 | 139 | return mwifiex_add_bss_prio_tbl(priv); |
5e6e3a92 BZ |
140 | } |
141 | ||
142 | /* | |
143 | * This function allocates buffers for members of the adapter | |
144 | * structure. | |
145 | * | |
146 | * The memory allocated includes scan table, command buffers, and | |
147 | * sleep confirm command buffer. In addition, the queues are | |
148 | * also initialized. | |
149 | */ | |
150 | static int mwifiex_allocate_adapter(struct mwifiex_adapter *adapter) | |
151 | { | |
270e58e8 | 152 | int ret; |
5e6e3a92 BZ |
153 | |
154 | /* Allocate command buffer */ | |
155 | ret = mwifiex_alloc_cmd_buffer(adapter); | |
156 | if (ret) { | |
157 | dev_err(adapter->dev, "%s: failed to alloc cmd buffer\n", | |
931f1584 | 158 | __func__); |
5e6e3a92 BZ |
159 | return -1; |
160 | } | |
161 | ||
162 | adapter->sleep_cfm = | |
7cc5eb62 | 163 | dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm) |
931f1584 | 164 | + INTF_HEADER_LEN); |
5e6e3a92 BZ |
165 | |
166 | if (!adapter->sleep_cfm) { | |
167 | dev_err(adapter->dev, "%s: failed to alloc sleep cfm" | |
168 | " cmd buffer\n", __func__); | |
169 | return -1; | |
170 | } | |
171 | skb_reserve(adapter->sleep_cfm, INTF_HEADER_LEN); | |
172 | ||
173 | return 0; | |
174 | } | |
175 | ||
176 | /* | |
177 | * This function initializes the adapter structure and sets default | |
178 | * values to the members of adapter. | |
179 | * | |
180 | * This also initializes the WMM related parameters in the driver private | |
181 | * structures. | |
182 | */ | |
183 | static void mwifiex_init_adapter(struct mwifiex_adapter *adapter) | |
184 | { | |
7cc5eb62 | 185 | struct mwifiex_opt_sleep_confirm *sleep_cfm_buf = NULL; |
5e6e3a92 | 186 | |
7cc5eb62 | 187 | skb_put(adapter->sleep_cfm, sizeof(struct mwifiex_opt_sleep_confirm)); |
5e6e3a92 BZ |
188 | |
189 | adapter->cmd_sent = false; | |
d930faee | 190 | |
4daffe35 | 191 | if (adapter->iface_type == MWIFIEX_SDIO) |
d930faee | 192 | adapter->data_sent = true; |
4daffe35 AK |
193 | else |
194 | adapter->data_sent = false; | |
d930faee | 195 | |
5e6e3a92 BZ |
196 | adapter->cmd_resp_received = false; |
197 | adapter->event_received = false; | |
198 | adapter->data_received = false; | |
199 | ||
200 | adapter->surprise_removed = false; | |
201 | ||
202 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; | |
203 | ||
204 | adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; | |
205 | adapter->ps_state = PS_STATE_AWAKE; | |
206 | adapter->need_to_wakeup = false; | |
207 | ||
208 | adapter->scan_mode = HostCmd_BSS_MODE_ANY; | |
209 | adapter->specific_scan_time = MWIFIEX_SPECIFIC_SCAN_CHAN_TIME; | |
210 | adapter->active_scan_time = MWIFIEX_ACTIVE_SCAN_CHAN_TIME; | |
211 | adapter->passive_scan_time = MWIFIEX_PASSIVE_SCAN_CHAN_TIME; | |
212 | ||
5e6e3a92 BZ |
213 | adapter->scan_probes = 1; |
214 | ||
5e6e3a92 BZ |
215 | adapter->multiple_dtim = 1; |
216 | ||
217 | adapter->local_listen_interval = 0; /* default value in firmware | |
218 | will be used */ | |
219 | ||
220 | adapter->is_deep_sleep = false; | |
221 | ||
222 | adapter->delay_null_pkt = false; | |
223 | adapter->delay_to_ps = 1000; | |
224 | adapter->enhanced_ps_mode = PS_MODE_AUTO; | |
225 | ||
226 | adapter->gen_null_pkt = false; /* Disable NULL Pkg generation by | |
227 | default */ | |
228 | adapter->pps_uapsd_mode = false; /* Disable pps/uapsd mode by | |
229 | default */ | |
230 | adapter->pm_wakeup_card_req = false; | |
231 | ||
232 | adapter->pm_wakeup_fw_try = false; | |
233 | ||
5e6e3a92 BZ |
234 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; |
235 | adapter->curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
236 | ||
237 | adapter->is_hs_configured = false; | |
cc0b5a64 AK |
238 | adapter->hs_cfg.conditions = cpu_to_le32(HS_CFG_COND_DEF); |
239 | adapter->hs_cfg.gpio = HS_CFG_GPIO_DEF; | |
240 | adapter->hs_cfg.gap = HS_CFG_GAP_DEF; | |
5e6e3a92 BZ |
241 | adapter->hs_activated = false; |
242 | ||
243 | memset(adapter->event_body, 0, sizeof(adapter->event_body)); | |
244 | adapter->hw_dot_11n_dev_cap = 0; | |
245 | adapter->hw_dev_mcs_support = 0; | |
21c3ba34 | 246 | adapter->sec_chan_offset = 0; |
5e6e3a92 BZ |
247 | adapter->adhoc_11n_enabled = false; |
248 | ||
249 | mwifiex_wmm_init(adapter); | |
250 | ||
251 | if (adapter->sleep_cfm) { | |
8ed13033 YAP |
252 | sleep_cfm_buf = (struct mwifiex_opt_sleep_confirm *) |
253 | adapter->sleep_cfm->data; | |
7cc5eb62 AK |
254 | memset(sleep_cfm_buf, 0, adapter->sleep_cfm->len); |
255 | sleep_cfm_buf->command = | |
256 | cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH); | |
257 | sleep_cfm_buf->size = | |
258 | cpu_to_le16(adapter->sleep_cfm->len); | |
259 | sleep_cfm_buf->result = 0; | |
260 | sleep_cfm_buf->action = cpu_to_le16(SLEEP_CONFIRM); | |
261 | sleep_cfm_buf->resp_ctrl = cpu_to_le16(RESP_NEEDED); | |
5e6e3a92 BZ |
262 | } |
263 | memset(&adapter->sleep_params, 0, sizeof(adapter->sleep_params)); | |
264 | memset(&adapter->sleep_period, 0, sizeof(adapter->sleep_period)); | |
265 | adapter->tx_lock_flag = false; | |
266 | adapter->null_pkt_interval = 0; | |
267 | adapter->fw_bands = 0; | |
268 | adapter->config_bands = 0; | |
269 | adapter->adhoc_start_band = 0; | |
270 | adapter->scan_channels = NULL; | |
271 | adapter->fw_release_number = 0; | |
272 | adapter->fw_cap_info = 0; | |
273 | memset(&adapter->upld_buf, 0, sizeof(adapter->upld_buf)); | |
274 | adapter->event_cause = 0; | |
275 | adapter->region_code = 0; | |
276 | adapter->bcn_miss_time_out = DEFAULT_BCN_MISS_TIMEOUT; | |
277 | adapter->adhoc_awake_period = 0; | |
278 | memset(&adapter->arp_filter, 0, sizeof(adapter->arp_filter)); | |
279 | adapter->arp_filter_size = 0; | |
ede98bfa | 280 | adapter->max_mgmt_ie_index = MAX_MGMT_IE_INDEX; |
bdd37bed | 281 | adapter->empty_tx_q_cnt = 0; |
5e6e3a92 BZ |
282 | } |
283 | ||
bbea3bc4 AP |
284 | /* |
285 | * This function sets trans_start per tx_queue | |
286 | */ | |
287 | void mwifiex_set_trans_start(struct net_device *dev) | |
288 | { | |
289 | int i; | |
290 | ||
291 | for (i = 0; i < dev->num_tx_queues; i++) | |
292 | netdev_get_tx_queue(dev, i)->trans_start = jiffies; | |
293 | ||
294 | dev->trans_start = jiffies; | |
295 | } | |
296 | ||
297 | /* | |
298 | * This function wakes up all queues in net_device | |
299 | */ | |
300 | void mwifiex_wake_up_net_dev_queue(struct net_device *netdev, | |
301 | struct mwifiex_adapter *adapter) | |
302 | { | |
303 | unsigned long dev_queue_flags; | |
47411a06 | 304 | unsigned int i; |
bbea3bc4 AP |
305 | |
306 | spin_lock_irqsave(&adapter->queue_lock, dev_queue_flags); | |
47411a06 AP |
307 | |
308 | for (i = 0; i < netdev->num_tx_queues; i++) { | |
309 | struct netdev_queue *txq = netdev_get_tx_queue(netdev, i); | |
310 | ||
311 | if (netif_tx_queue_stopped(txq)) | |
312 | netif_tx_wake_queue(txq); | |
313 | } | |
314 | ||
bbea3bc4 AP |
315 | spin_unlock_irqrestore(&adapter->queue_lock, dev_queue_flags); |
316 | } | |
317 | ||
318 | /* | |
319 | * This function stops all queues in net_device | |
320 | */ | |
321 | void mwifiex_stop_net_dev_queue(struct net_device *netdev, | |
322 | struct mwifiex_adapter *adapter) | |
323 | { | |
324 | unsigned long dev_queue_flags; | |
47411a06 | 325 | unsigned int i; |
bbea3bc4 AP |
326 | |
327 | spin_lock_irqsave(&adapter->queue_lock, dev_queue_flags); | |
47411a06 AP |
328 | |
329 | for (i = 0; i < netdev->num_tx_queues; i++) { | |
330 | struct netdev_queue *txq = netdev_get_tx_queue(netdev, i); | |
331 | ||
332 | if (!netif_tx_queue_stopped(txq)) | |
333 | netif_tx_stop_queue(txq); | |
334 | } | |
335 | ||
bbea3bc4 AP |
336 | spin_unlock_irqrestore(&adapter->queue_lock, dev_queue_flags); |
337 | } | |
338 | ||
711825a0 AK |
339 | /* |
340 | * This function releases the lock variables and frees the locks and | |
341 | * associated locks. | |
342 | */ | |
343 | static void mwifiex_free_lock_list(struct mwifiex_adapter *adapter) | |
344 | { | |
345 | struct mwifiex_private *priv; | |
346 | s32 i, j; | |
347 | ||
348 | /* Free lists */ | |
349 | list_del(&adapter->cmd_free_q); | |
350 | list_del(&adapter->cmd_pending_q); | |
351 | list_del(&adapter->scan_pending_q); | |
352 | ||
353 | for (i = 0; i < adapter->priv_num; i++) | |
354 | list_del(&adapter->bss_prio_tbl[i].bss_prio_head); | |
355 | ||
356 | for (i = 0; i < adapter->priv_num; i++) { | |
357 | if (adapter->priv[i]) { | |
358 | priv = adapter->priv[i]; | |
359 | for (j = 0; j < MAX_NUM_TID; ++j) | |
360 | list_del(&priv->wmm.tid_tbl_ptr[j].ra_list); | |
361 | list_del(&priv->tx_ba_stream_tbl_ptr); | |
362 | list_del(&priv->rx_reorder_tbl_ptr); | |
017a92a1 | 363 | list_del(&priv->sta_list); |
711825a0 AK |
364 | } |
365 | } | |
366 | } | |
367 | ||
5e6e3a92 | 368 | /* |
c56ecf5a | 369 | * This function performs cleanup for adapter structure. |
5e6e3a92 | 370 | * |
c56ecf5a AK |
371 | * The cleanup is done recursively, by canceling all pending |
372 | * commands, freeing the member buffers previously allocated | |
373 | * (command buffers, scan table buffer, sleep confirm command | |
374 | * buffer), stopping the timers and calling the cleanup routines | |
375 | * for every interface. | |
5e6e3a92 BZ |
376 | */ |
377 | static void | |
c56ecf5a | 378 | mwifiex_adapter_cleanup(struct mwifiex_adapter *adapter) |
5e6e3a92 | 379 | { |
06041118 AK |
380 | int i; |
381 | ||
5e6e3a92 BZ |
382 | if (!adapter) { |
383 | pr_err("%s: adapter is NULL\n", __func__); | |
384 | return; | |
385 | } | |
386 | ||
06041118 AK |
387 | for (i = 0; i < adapter->priv_num; i++) { |
388 | if (adapter->priv[i]) | |
389 | del_timer_sync(&adapter->priv[i]->scan_delay_timer); | |
390 | } | |
391 | ||
5e6e3a92 BZ |
392 | mwifiex_cancel_all_pending_cmd(adapter); |
393 | ||
394 | /* Free lock variables */ | |
395 | mwifiex_free_lock_list(adapter); | |
396 | ||
397 | /* Free command buffer */ | |
398 | dev_dbg(adapter->dev, "info: free cmd buffer\n"); | |
399 | mwifiex_free_cmd_buffer(adapter); | |
400 | ||
401 | del_timer(&adapter->cmd_timer); | |
402 | ||
403 | dev_dbg(adapter->dev, "info: free scan table\n"); | |
5e6e3a92 | 404 | |
4daffe35 AK |
405 | if (adapter->if_ops.cleanup_if) |
406 | adapter->if_ops.cleanup_if(adapter); | |
5e6e3a92 | 407 | |
2da8cbf8 AK |
408 | if (adapter->sleep_cfm) |
409 | dev_kfree_skb_any(adapter->sleep_cfm); | |
5e6e3a92 BZ |
410 | } |
411 | ||
412 | /* | |
413 | * This function intializes the lock variables and | |
414 | * the list heads. | |
415 | */ | |
416 | int mwifiex_init_lock_list(struct mwifiex_adapter *adapter) | |
417 | { | |
270e58e8 YAP |
418 | struct mwifiex_private *priv; |
419 | s32 i, j; | |
5e6e3a92 BZ |
420 | |
421 | spin_lock_init(&adapter->mwifiex_lock); | |
422 | spin_lock_init(&adapter->int_lock); | |
423 | spin_lock_init(&adapter->main_proc_lock); | |
424 | spin_lock_init(&adapter->mwifiex_cmd_lock); | |
bbea3bc4 | 425 | spin_lock_init(&adapter->queue_lock); |
5e6e3a92 BZ |
426 | for (i = 0; i < adapter->priv_num; i++) { |
427 | if (adapter->priv[i]) { | |
428 | priv = adapter->priv[i]; | |
429 | spin_lock_init(&priv->rx_pkt_lock); | |
430 | spin_lock_init(&priv->wmm.ra_list_spinlock); | |
431 | spin_lock_init(&priv->curr_bcn_buf_lock); | |
017a92a1 | 432 | spin_lock_init(&priv->sta_list_spinlock); |
5e6e3a92 BZ |
433 | } |
434 | } | |
435 | ||
436 | /* Initialize cmd_free_q */ | |
437 | INIT_LIST_HEAD(&adapter->cmd_free_q); | |
438 | /* Initialize cmd_pending_q */ | |
439 | INIT_LIST_HEAD(&adapter->cmd_pending_q); | |
440 | /* Initialize scan_pending_q */ | |
441 | INIT_LIST_HEAD(&adapter->scan_pending_q); | |
442 | ||
443 | spin_lock_init(&adapter->cmd_free_q_lock); | |
444 | spin_lock_init(&adapter->cmd_pending_q_lock); | |
445 | spin_lock_init(&adapter->scan_pending_q_lock); | |
446 | ||
4daffe35 AK |
447 | skb_queue_head_init(&adapter->usb_rx_data_q); |
448 | ||
5e6e3a92 BZ |
449 | for (i = 0; i < adapter->priv_num; ++i) { |
450 | INIT_LIST_HEAD(&adapter->bss_prio_tbl[i].bss_prio_head); | |
5e6e3a92 BZ |
451 | spin_lock_init(&adapter->bss_prio_tbl[i].bss_prio_lock); |
452 | } | |
453 | ||
454 | for (i = 0; i < adapter->priv_num; i++) { | |
455 | if (!adapter->priv[i]) | |
456 | continue; | |
457 | priv = adapter->priv[i]; | |
6d2344ec | 458 | for (j = 0; j < MAX_NUM_TID; ++j) |
5e6e3a92 | 459 | INIT_LIST_HEAD(&priv->wmm.tid_tbl_ptr[j].ra_list); |
5e6e3a92 BZ |
460 | INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr); |
461 | INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr); | |
017a92a1 | 462 | INIT_LIST_HEAD(&priv->sta_list); |
5e6e3a92 BZ |
463 | |
464 | spin_lock_init(&priv->tx_ba_stream_tbl_lock); | |
465 | spin_lock_init(&priv->rx_reorder_tbl_lock); | |
466 | } | |
467 | ||
468 | return 0; | |
469 | } | |
470 | ||
5e6e3a92 BZ |
471 | /* |
472 | * This function initializes the firmware. | |
473 | * | |
474 | * The following operations are performed sequentially - | |
475 | * - Allocate adapter structure | |
476 | * - Initialize the adapter structure | |
477 | * - Initialize the private structure | |
478 | * - Add BSS priority tables to the adapter structure | |
479 | * - For each interface, send the init commands to firmware | |
480 | * - Send the first command in command pending queue, if available | |
481 | */ | |
482 | int mwifiex_init_fw(struct mwifiex_adapter *adapter) | |
483 | { | |
270e58e8 YAP |
484 | int ret; |
485 | struct mwifiex_private *priv; | |
486 | u8 i, first_sta = true; | |
5e6e3a92 BZ |
487 | int is_cmd_pend_q_empty; |
488 | unsigned long flags; | |
489 | ||
490 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; | |
491 | ||
492 | /* Allocate memory for member of adapter structure */ | |
493 | ret = mwifiex_allocate_adapter(adapter); | |
494 | if (ret) | |
495 | return -1; | |
496 | ||
497 | /* Initialize adapter structure */ | |
498 | mwifiex_init_adapter(adapter); | |
499 | ||
500 | for (i = 0; i < adapter->priv_num; i++) { | |
501 | if (adapter->priv[i]) { | |
502 | priv = adapter->priv[i]; | |
503 | ||
504 | /* Initialize private structure */ | |
505 | ret = mwifiex_init_priv(priv); | |
506 | if (ret) | |
507 | return -1; | |
508 | } | |
509 | } | |
c6d1d87a AP |
510 | |
511 | if (adapter->if_ops.init_fw_port) { | |
512 | if (adapter->if_ops.init_fw_port(adapter)) | |
513 | return -1; | |
514 | } | |
515 | ||
5e6e3a92 BZ |
516 | for (i = 0; i < adapter->priv_num; i++) { |
517 | if (adapter->priv[i]) { | |
518 | ret = mwifiex_sta_init_cmd(adapter->priv[i], first_sta); | |
519 | if (ret == -1) | |
520 | return -1; | |
521 | ||
522 | first_sta = false; | |
523 | } | |
524 | } | |
525 | ||
526 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
527 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
528 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
529 | if (!is_cmd_pend_q_empty) { | |
530 | /* Send the first command in queue and return */ | |
531 | if (mwifiex_main_process(adapter) != -1) | |
532 | ret = -EINPROGRESS; | |
533 | } else { | |
534 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
535 | } | |
536 | ||
537 | return ret; | |
538 | } | |
539 | ||
540 | /* | |
541 | * This function deletes the BSS priority tables. | |
542 | * | |
543 | * The function traverses through all the allocated BSS priority nodes | |
544 | * in every BSS priority table and frees them. | |
545 | */ | |
546 | static void mwifiex_delete_bss_prio_tbl(struct mwifiex_private *priv) | |
547 | { | |
548 | int i; | |
549 | struct mwifiex_adapter *adapter = priv->adapter; | |
b006ed54 | 550 | struct mwifiex_bss_prio_node *bssprio_node, *tmp_node; |
5e6e3a92 | 551 | struct list_head *head; |
931f1584 | 552 | spinlock_t *lock; /* bss priority lock */ |
5e6e3a92 BZ |
553 | unsigned long flags; |
554 | ||
555 | for (i = 0; i < adapter->priv_num; ++i) { | |
556 | head = &adapter->bss_prio_tbl[i].bss_prio_head; | |
5e6e3a92 BZ |
557 | lock = &adapter->bss_prio_tbl[i].bss_prio_lock; |
558 | dev_dbg(adapter->dev, "info: delete BSS priority table," | |
9da9a3b2 | 559 | " bss_type = %d, bss_num = %d, i = %d," |
b006ed54 AF |
560 | " head = %p\n", |
561 | priv->bss_type, priv->bss_num, i, head); | |
562 | ||
563 | { | |
5e6e3a92 BZ |
564 | spin_lock_irqsave(lock, flags); |
565 | if (list_empty(head)) { | |
566 | spin_unlock_irqrestore(lock, flags); | |
567 | continue; | |
568 | } | |
5e6e3a92 BZ |
569 | list_for_each_entry_safe(bssprio_node, tmp_node, head, |
570 | list) { | |
571 | if (bssprio_node->priv == priv) { | |
572 | dev_dbg(adapter->dev, "info: Delete " | |
573 | "node %p, next = %p\n", | |
574 | bssprio_node, tmp_node); | |
5e6e3a92 | 575 | list_del(&bssprio_node->list); |
5e6e3a92 BZ |
576 | kfree(bssprio_node); |
577 | } | |
578 | } | |
b006ed54 | 579 | spin_unlock_irqrestore(lock, flags); |
5e6e3a92 BZ |
580 | } |
581 | } | |
582 | } | |
583 | ||
9197ab9e SP |
584 | /* |
585 | * This function frees the private structure, including cleans | |
586 | * up the TX and RX queues and frees the BSS priority tables. | |
587 | */ | |
588 | void mwifiex_free_priv(struct mwifiex_private *priv) | |
589 | { | |
590 | mwifiex_clean_txrx(priv); | |
591 | mwifiex_delete_bss_prio_tbl(priv); | |
592 | mwifiex_free_curr_bcn(priv); | |
593 | } | |
594 | ||
5e6e3a92 BZ |
595 | /* |
596 | * This function is used to shutdown the driver. | |
597 | * | |
598 | * The following operations are performed sequentially - | |
599 | * - Check if already shut down | |
600 | * - Make sure the main process has stopped | |
601 | * - Clean up the Tx and Rx queues | |
602 | * - Delete BSS priority tables | |
603 | * - Free the adapter | |
604 | * - Notify completion | |
605 | */ | |
606 | int | |
607 | mwifiex_shutdown_drv(struct mwifiex_adapter *adapter) | |
608 | { | |
609 | int ret = -EINPROGRESS; | |
270e58e8 YAP |
610 | struct mwifiex_private *priv; |
611 | s32 i; | |
4daffe35 | 612 | struct sk_buff *skb; |
5e6e3a92 BZ |
613 | |
614 | /* mwifiex already shutdown */ | |
615 | if (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY) | |
616 | return 0; | |
617 | ||
618 | adapter->hw_status = MWIFIEX_HW_STATUS_CLOSING; | |
619 | /* wait for mwifiex_process to complete */ | |
620 | if (adapter->mwifiex_processing) { | |
621 | dev_warn(adapter->dev, "main process is still running\n"); | |
622 | return ret; | |
623 | } | |
624 | ||
084c7189 BZ |
625 | /* cancel current command */ |
626 | if (adapter->curr_cmd) { | |
627 | dev_warn(adapter->dev, "curr_cmd is still in processing\n"); | |
628 | del_timer(&adapter->cmd_timer); | |
9908b074 | 629 | mwifiex_recycle_cmd_node(adapter, adapter->curr_cmd); |
084c7189 BZ |
630 | adapter->curr_cmd = NULL; |
631 | } | |
632 | ||
5e6e3a92 BZ |
633 | /* shut down mwifiex */ |
634 | dev_dbg(adapter->dev, "info: shutdown mwifiex...\n"); | |
635 | ||
636 | /* Clean up Tx/Rx queues and delete BSS priority table */ | |
637 | for (i = 0; i < adapter->priv_num; i++) { | |
638 | if (adapter->priv[i]) { | |
639 | priv = adapter->priv[i]; | |
640 | ||
641 | mwifiex_clean_txrx(priv); | |
642 | mwifiex_delete_bss_prio_tbl(priv); | |
643 | } | |
644 | } | |
645 | ||
013a492e | 646 | spin_lock(&adapter->mwifiex_lock); |
5e6e3a92 | 647 | |
4daffe35 AK |
648 | if (adapter->if_ops.data_complete) { |
649 | while ((skb = skb_dequeue(&adapter->usb_rx_data_q))) { | |
650 | struct mwifiex_rxinfo *rx_info = MWIFIEX_SKB_RXCB(skb); | |
651 | ||
652 | priv = adapter->priv[rx_info->bss_num]; | |
653 | if (priv) | |
654 | priv->stats.rx_dropped++; | |
655 | ||
656 | adapter->if_ops.data_complete(adapter, skb); | |
657 | } | |
658 | } | |
659 | ||
c56ecf5a | 660 | mwifiex_adapter_cleanup(adapter); |
5e6e3a92 | 661 | |
013a492e | 662 | spin_unlock(&adapter->mwifiex_lock); |
5e6e3a92 BZ |
663 | |
664 | /* Notify completion */ | |
665 | ret = mwifiex_shutdown_fw_complete(adapter); | |
666 | ||
667 | return ret; | |
668 | } | |
669 | ||
670 | /* | |
671 | * This function downloads the firmware to the card. | |
672 | * | |
673 | * The actual download is preceded by two sanity checks - | |
674 | * - Check if firmware is already running | |
675 | * - Check if the interface is the winner to download the firmware | |
676 | * | |
677 | * ...and followed by another - | |
678 | * - Check if the firmware is downloaded successfully | |
679 | * | |
680 | * After download is successfully completed, the host interrupts are enabled. | |
681 | */ | |
682 | int mwifiex_dnld_fw(struct mwifiex_adapter *adapter, | |
683 | struct mwifiex_fw_image *pmfw) | |
684 | { | |
d930faee | 685 | int ret; |
5e6e3a92 | 686 | u32 poll_num = 1; |
5e6e3a92 | 687 | |
4daffe35 AK |
688 | if (adapter->if_ops.check_fw_status) { |
689 | adapter->winner = 0; | |
d930faee | 690 | |
4daffe35 AK |
691 | /* check if firmware is already running */ |
692 | ret = adapter->if_ops.check_fw_status(adapter, poll_num); | |
693 | if (!ret) { | |
694 | dev_notice(adapter->dev, | |
695 | "WLAN FW already running! Skip FW dnld\n"); | |
696 | goto done; | |
697 | } | |
698 | ||
699 | poll_num = MAX_FIRMWARE_POLL_TRIES; | |
700 | ||
701 | /* check if we are the winner for downloading FW */ | |
702 | if (!adapter->winner) { | |
703 | dev_notice(adapter->dev, | |
704 | "FW already running! Skip FW dnld\n"); | |
705 | poll_num = MAX_MULTI_INTERFACE_POLL_TRIES; | |
706 | goto poll_fw; | |
707 | } | |
5e6e3a92 | 708 | } |
4daffe35 | 709 | |
5e6e3a92 BZ |
710 | if (pmfw) { |
711 | /* Download firmware with helper */ | |
712 | ret = adapter->if_ops.prog_fw(adapter, pmfw); | |
713 | if (ret) { | |
714 | dev_err(adapter->dev, "prog_fw failed ret=%#x\n", ret); | |
715 | return ret; | |
716 | } | |
717 | } | |
718 | ||
719 | poll_fw: | |
720 | /* Check if the firmware is downloaded successfully or not */ | |
d930faee | 721 | ret = adapter->if_ops.check_fw_status(adapter, poll_num); |
5e6e3a92 BZ |
722 | if (ret) { |
723 | dev_err(adapter->dev, "FW failed to be active in time\n"); | |
724 | return -1; | |
725 | } | |
726 | done: | |
727 | /* re-enable host interrupt for mwifiex after fw dnld is successful */ | |
4daffe35 AK |
728 | if (adapter->if_ops.enable_int) |
729 | adapter->if_ops.enable_int(adapter); | |
730 | ||
5e6e3a92 BZ |
731 | return ret; |
732 | } |