Commit | Line | Data |
---|---|---|
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 | ||
60 | /* | |
61 | * This function initializes the private structure and sets default | |
62 | * values to the members. | |
63 | * | |
64 | * Additionally, it also initializes all the locks and sets up all the | |
65 | * lists. | |
66 | */ | |
67 | static int mwifiex_init_priv(struct mwifiex_private *priv) | |
68 | { | |
69 | u32 i; | |
5e6e3a92 BZ |
70 | |
71 | priv->media_connected = false; | |
72 | memset(priv->curr_addr, 0xff, ETH_ALEN); | |
73 | ||
74 | priv->pkt_tx_ctrl = 0; | |
93a1df48 | 75 | priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; |
5e6e3a92 BZ |
76 | priv->data_rate = 0; /* Initially indicate the rate as auto */ |
77 | priv->is_data_rate_auto = true; | |
78 | priv->bcn_avg_factor = DEFAULT_BCN_AVG_FACTOR; | |
79 | priv->data_avg_factor = DEFAULT_DATA_AVG_FACTOR; | |
80 | ||
5eb02e44 | 81 | priv->sec_info.wep_enabled = 0; |
f986b6d5 | 82 | priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM; |
2be50b8d | 83 | priv->sec_info.encryption_mode = 0; |
5e6e3a92 BZ |
84 | for (i = 0; i < ARRAY_SIZE(priv->wep_key); i++) |
85 | memset(&priv->wep_key[i], 0, sizeof(struct mwifiex_wep_key)); | |
86 | priv->wep_key_curr_index = 0; | |
87 | priv->curr_pkt_filter = HostCmd_ACT_MAC_RX_ON | HostCmd_ACT_MAC_TX_ON | | |
88 | HostCmd_ACT_MAC_ETHERNETII_ENABLE; | |
89 | ||
90 | priv->beacon_period = 100; /* beacon interval */ ; | |
91 | priv->attempted_bss_desc = NULL; | |
92 | memset(&priv->curr_bss_params, 0, sizeof(priv->curr_bss_params)); | |
93 | priv->listen_interval = MWIFIEX_DEFAULT_LISTEN_INTERVAL; | |
94 | ||
95 | memset(&priv->prev_ssid, 0, sizeof(priv->prev_ssid)); | |
96 | memset(&priv->prev_bssid, 0, sizeof(priv->prev_bssid)); | |
97 | memset(&priv->assoc_rsp_buf, 0, sizeof(priv->assoc_rsp_buf)); | |
98 | priv->assoc_rsp_size = 0; | |
99 | priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; | |
100 | priv->atim_window = 0; | |
101 | priv->adhoc_state = ADHOC_IDLE; | |
102 | priv->tx_power_level = 0; | |
103 | priv->max_tx_power_level = 0; | |
104 | priv->min_tx_power_level = 0; | |
105 | priv->tx_rate = 0; | |
106 | priv->rxpd_htinfo = 0; | |
107 | priv->rxpd_rate = 0; | |
108 | priv->rate_bitmap = 0; | |
109 | priv->data_rssi_last = 0; | |
110 | priv->data_rssi_avg = 0; | |
111 | priv->data_nf_avg = 0; | |
112 | priv->data_nf_last = 0; | |
113 | priv->bcn_rssi_last = 0; | |
114 | priv->bcn_rssi_avg = 0; | |
115 | priv->bcn_nf_avg = 0; | |
116 | priv->bcn_nf_last = 0; | |
117 | memset(&priv->wpa_ie, 0, sizeof(priv->wpa_ie)); | |
118 | memset(&priv->aes_key, 0, sizeof(priv->aes_key)); | |
119 | priv->wpa_ie_len = 0; | |
120 | priv->wpa_is_gtk_set = false; | |
121 | ||
122 | memset(&priv->assoc_tlv_buf, 0, sizeof(priv->assoc_tlv_buf)); | |
123 | priv->assoc_tlv_buf_len = 0; | |
124 | memset(&priv->wps, 0, sizeof(priv->wps)); | |
125 | memset(&priv->gen_ie_buf, 0, sizeof(priv->gen_ie_buf)); | |
126 | priv->gen_ie_buf_len = 0; | |
127 | memset(priv->vs_ie, 0, sizeof(priv->vs_ie)); | |
128 | ||
129 | priv->wmm_required = true; | |
130 | priv->wmm_enabled = false; | |
131 | priv->wmm_qosinfo = 0; | |
132 | priv->curr_bcn_buf = NULL; | |
133 | priv->curr_bcn_size = 0; | |
134 | ||
135 | priv->scan_block = false; | |
136 | ||
636c4598 | 137 | return mwifiex_add_bss_prio_tbl(priv); |
5e6e3a92 BZ |
138 | } |
139 | ||
140 | /* | |
141 | * This function allocates buffers for members of the adapter | |
142 | * structure. | |
143 | * | |
144 | * The memory allocated includes scan table, command buffers, and | |
145 | * sleep confirm command buffer. In addition, the queues are | |
146 | * also initialized. | |
147 | */ | |
148 | static int mwifiex_allocate_adapter(struct mwifiex_adapter *adapter) | |
149 | { | |
270e58e8 | 150 | int ret; |
5e6e3a92 BZ |
151 | |
152 | /* Allocate command buffer */ | |
153 | ret = mwifiex_alloc_cmd_buffer(adapter); | |
154 | if (ret) { | |
155 | dev_err(adapter->dev, "%s: failed to alloc cmd buffer\n", | |
931f1584 | 156 | __func__); |
5e6e3a92 BZ |
157 | return -1; |
158 | } | |
159 | ||
160 | adapter->sleep_cfm = | |
7cc5eb62 | 161 | dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm) |
931f1584 | 162 | + INTF_HEADER_LEN); |
5e6e3a92 BZ |
163 | |
164 | if (!adapter->sleep_cfm) { | |
165 | dev_err(adapter->dev, "%s: failed to alloc sleep cfm" | |
166 | " cmd buffer\n", __func__); | |
167 | return -1; | |
168 | } | |
169 | skb_reserve(adapter->sleep_cfm, INTF_HEADER_LEN); | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
174 | /* | |
175 | * This function initializes the adapter structure and sets default | |
176 | * values to the members of adapter. | |
177 | * | |
178 | * This also initializes the WMM related parameters in the driver private | |
179 | * structures. | |
180 | */ | |
181 | static void mwifiex_init_adapter(struct mwifiex_adapter *adapter) | |
182 | { | |
7cc5eb62 | 183 | struct mwifiex_opt_sleep_confirm *sleep_cfm_buf = NULL; |
5e6e3a92 | 184 | |
7cc5eb62 | 185 | skb_put(adapter->sleep_cfm, sizeof(struct mwifiex_opt_sleep_confirm)); |
5e6e3a92 BZ |
186 | |
187 | adapter->cmd_sent = false; | |
d930faee AK |
188 | |
189 | if (adapter->iface_type == MWIFIEX_PCIE) | |
190 | adapter->data_sent = false; | |
191 | else | |
192 | adapter->data_sent = true; | |
193 | ||
5e6e3a92 BZ |
194 | adapter->cmd_resp_received = false; |
195 | adapter->event_received = false; | |
196 | adapter->data_received = false; | |
197 | ||
198 | adapter->surprise_removed = false; | |
199 | ||
200 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; | |
201 | ||
202 | adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; | |
203 | adapter->ps_state = PS_STATE_AWAKE; | |
204 | adapter->need_to_wakeup = false; | |
205 | ||
206 | adapter->scan_mode = HostCmd_BSS_MODE_ANY; | |
207 | adapter->specific_scan_time = MWIFIEX_SPECIFIC_SCAN_CHAN_TIME; | |
208 | adapter->active_scan_time = MWIFIEX_ACTIVE_SCAN_CHAN_TIME; | |
209 | adapter->passive_scan_time = MWIFIEX_PASSIVE_SCAN_CHAN_TIME; | |
210 | ||
5e6e3a92 BZ |
211 | adapter->scan_probes = 1; |
212 | ||
5e6e3a92 BZ |
213 | adapter->multiple_dtim = 1; |
214 | ||
215 | adapter->local_listen_interval = 0; /* default value in firmware | |
216 | will be used */ | |
217 | ||
218 | adapter->is_deep_sleep = false; | |
219 | ||
220 | adapter->delay_null_pkt = false; | |
221 | adapter->delay_to_ps = 1000; | |
222 | adapter->enhanced_ps_mode = PS_MODE_AUTO; | |
223 | ||
224 | adapter->gen_null_pkt = false; /* Disable NULL Pkg generation by | |
225 | default */ | |
226 | adapter->pps_uapsd_mode = false; /* Disable pps/uapsd mode by | |
227 | default */ | |
228 | adapter->pm_wakeup_card_req = false; | |
229 | ||
230 | adapter->pm_wakeup_fw_try = false; | |
231 | ||
232 | adapter->max_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
233 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
234 | adapter->curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
235 | ||
236 | adapter->is_hs_configured = false; | |
237 | adapter->hs_cfg.conditions = cpu_to_le32(HOST_SLEEP_CFG_COND_DEF); | |
238 | adapter->hs_cfg.gpio = HOST_SLEEP_CFG_GPIO_DEF; | |
239 | adapter->hs_cfg.gap = HOST_SLEEP_CFG_GAP_DEF; | |
240 | adapter->hs_activated = false; | |
241 | ||
242 | memset(adapter->event_body, 0, sizeof(adapter->event_body)); | |
243 | adapter->hw_dot_11n_dev_cap = 0; | |
244 | adapter->hw_dev_mcs_support = 0; | |
21c3ba34 | 245 | adapter->sec_chan_offset = 0; |
5e6e3a92 BZ |
246 | adapter->adhoc_11n_enabled = false; |
247 | ||
248 | mwifiex_wmm_init(adapter); | |
249 | ||
250 | if (adapter->sleep_cfm) { | |
8ed13033 YAP |
251 | sleep_cfm_buf = (struct mwifiex_opt_sleep_confirm *) |
252 | adapter->sleep_cfm->data; | |
7cc5eb62 AK |
253 | memset(sleep_cfm_buf, 0, adapter->sleep_cfm->len); |
254 | sleep_cfm_buf->command = | |
255 | cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH); | |
256 | sleep_cfm_buf->size = | |
257 | cpu_to_le16(adapter->sleep_cfm->len); | |
258 | sleep_cfm_buf->result = 0; | |
259 | sleep_cfm_buf->action = cpu_to_le16(SLEEP_CONFIRM); | |
260 | sleep_cfm_buf->resp_ctrl = cpu_to_le16(RESP_NEEDED); | |
5e6e3a92 BZ |
261 | } |
262 | memset(&adapter->sleep_params, 0, sizeof(adapter->sleep_params)); | |
263 | memset(&adapter->sleep_period, 0, sizeof(adapter->sleep_period)); | |
264 | adapter->tx_lock_flag = false; | |
265 | adapter->null_pkt_interval = 0; | |
266 | adapter->fw_bands = 0; | |
267 | adapter->config_bands = 0; | |
268 | adapter->adhoc_start_band = 0; | |
269 | adapter->scan_channels = NULL; | |
270 | adapter->fw_release_number = 0; | |
271 | adapter->fw_cap_info = 0; | |
272 | memset(&adapter->upld_buf, 0, sizeof(adapter->upld_buf)); | |
273 | adapter->event_cause = 0; | |
274 | adapter->region_code = 0; | |
275 | adapter->bcn_miss_time_out = DEFAULT_BCN_MISS_TIMEOUT; | |
276 | adapter->adhoc_awake_period = 0; | |
277 | memset(&adapter->arp_filter, 0, sizeof(adapter->arp_filter)); | |
278 | adapter->arp_filter_size = 0; | |
3dc5e175 | 279 | adapter->channel_type = NL80211_CHAN_HT20; |
5e6e3a92 BZ |
280 | } |
281 | ||
bbea3bc4 AP |
282 | /* |
283 | * This function sets trans_start per tx_queue | |
284 | */ | |
285 | void mwifiex_set_trans_start(struct net_device *dev) | |
286 | { | |
287 | int i; | |
288 | ||
289 | for (i = 0; i < dev->num_tx_queues; i++) | |
290 | netdev_get_tx_queue(dev, i)->trans_start = jiffies; | |
291 | ||
292 | dev->trans_start = jiffies; | |
293 | } | |
294 | ||
295 | /* | |
296 | * This function wakes up all queues in net_device | |
297 | */ | |
298 | void mwifiex_wake_up_net_dev_queue(struct net_device *netdev, | |
299 | struct mwifiex_adapter *adapter) | |
300 | { | |
301 | unsigned long dev_queue_flags; | |
302 | ||
303 | spin_lock_irqsave(&adapter->queue_lock, dev_queue_flags); | |
304 | netif_tx_wake_all_queues(netdev); | |
305 | spin_unlock_irqrestore(&adapter->queue_lock, dev_queue_flags); | |
306 | } | |
307 | ||
308 | /* | |
309 | * This function stops all queues in net_device | |
310 | */ | |
311 | void mwifiex_stop_net_dev_queue(struct net_device *netdev, | |
312 | struct mwifiex_adapter *adapter) | |
313 | { | |
314 | unsigned long dev_queue_flags; | |
315 | ||
316 | spin_lock_irqsave(&adapter->queue_lock, dev_queue_flags); | |
317 | netif_tx_stop_all_queues(netdev); | |
318 | spin_unlock_irqrestore(&adapter->queue_lock, dev_queue_flags); | |
319 | } | |
320 | ||
711825a0 AK |
321 | /* |
322 | * This function releases the lock variables and frees the locks and | |
323 | * associated locks. | |
324 | */ | |
325 | static void mwifiex_free_lock_list(struct mwifiex_adapter *adapter) | |
326 | { | |
327 | struct mwifiex_private *priv; | |
328 | s32 i, j; | |
329 | ||
330 | /* Free lists */ | |
331 | list_del(&adapter->cmd_free_q); | |
332 | list_del(&adapter->cmd_pending_q); | |
333 | list_del(&adapter->scan_pending_q); | |
334 | ||
335 | for (i = 0; i < adapter->priv_num; i++) | |
336 | list_del(&adapter->bss_prio_tbl[i].bss_prio_head); | |
337 | ||
338 | for (i = 0; i < adapter->priv_num; i++) { | |
339 | if (adapter->priv[i]) { | |
340 | priv = adapter->priv[i]; | |
341 | for (j = 0; j < MAX_NUM_TID; ++j) | |
342 | list_del(&priv->wmm.tid_tbl_ptr[j].ra_list); | |
343 | list_del(&priv->tx_ba_stream_tbl_ptr); | |
344 | list_del(&priv->rx_reorder_tbl_ptr); | |
345 | } | |
346 | } | |
347 | } | |
348 | ||
5e6e3a92 BZ |
349 | /* |
350 | * This function frees the adapter structure. | |
351 | * | |
352 | * The freeing operation is done recursively, by canceling all | |
353 | * pending commands, freeing the member buffers previously | |
354 | * allocated (command buffers, scan table buffer, sleep confirm | |
355 | * command buffer), stopping the timers and calling the cleanup | |
356 | * routines for every interface, before the actual adapter | |
357 | * structure is freed. | |
358 | */ | |
359 | static void | |
360 | mwifiex_free_adapter(struct mwifiex_adapter *adapter) | |
361 | { | |
362 | if (!adapter) { | |
363 | pr_err("%s: adapter is NULL\n", __func__); | |
364 | return; | |
365 | } | |
366 | ||
367 | mwifiex_cancel_all_pending_cmd(adapter); | |
368 | ||
369 | /* Free lock variables */ | |
370 | mwifiex_free_lock_list(adapter); | |
371 | ||
372 | /* Free command buffer */ | |
373 | dev_dbg(adapter->dev, "info: free cmd buffer\n"); | |
374 | mwifiex_free_cmd_buffer(adapter); | |
375 | ||
376 | del_timer(&adapter->cmd_timer); | |
377 | ||
378 | dev_dbg(adapter->dev, "info: free scan table\n"); | |
5e6e3a92 BZ |
379 | |
380 | adapter->if_ops.cleanup_if(adapter); | |
381 | ||
2da8cbf8 AK |
382 | if (adapter->sleep_cfm) |
383 | dev_kfree_skb_any(adapter->sleep_cfm); | |
5e6e3a92 BZ |
384 | } |
385 | ||
386 | /* | |
387 | * This function intializes the lock variables and | |
388 | * the list heads. | |
389 | */ | |
390 | int mwifiex_init_lock_list(struct mwifiex_adapter *adapter) | |
391 | { | |
270e58e8 YAP |
392 | struct mwifiex_private *priv; |
393 | s32 i, j; | |
5e6e3a92 BZ |
394 | |
395 | spin_lock_init(&adapter->mwifiex_lock); | |
396 | spin_lock_init(&adapter->int_lock); | |
397 | spin_lock_init(&adapter->main_proc_lock); | |
398 | spin_lock_init(&adapter->mwifiex_cmd_lock); | |
bbea3bc4 | 399 | spin_lock_init(&adapter->queue_lock); |
5e6e3a92 BZ |
400 | for (i = 0; i < adapter->priv_num; i++) { |
401 | if (adapter->priv[i]) { | |
402 | priv = adapter->priv[i]; | |
403 | spin_lock_init(&priv->rx_pkt_lock); | |
404 | spin_lock_init(&priv->wmm.ra_list_spinlock); | |
405 | spin_lock_init(&priv->curr_bcn_buf_lock); | |
406 | } | |
407 | } | |
408 | ||
409 | /* Initialize cmd_free_q */ | |
410 | INIT_LIST_HEAD(&adapter->cmd_free_q); | |
411 | /* Initialize cmd_pending_q */ | |
412 | INIT_LIST_HEAD(&adapter->cmd_pending_q); | |
413 | /* Initialize scan_pending_q */ | |
414 | INIT_LIST_HEAD(&adapter->scan_pending_q); | |
415 | ||
416 | spin_lock_init(&adapter->cmd_free_q_lock); | |
417 | spin_lock_init(&adapter->cmd_pending_q_lock); | |
418 | spin_lock_init(&adapter->scan_pending_q_lock); | |
419 | ||
420 | for (i = 0; i < adapter->priv_num; ++i) { | |
421 | INIT_LIST_HEAD(&adapter->bss_prio_tbl[i].bss_prio_head); | |
422 | adapter->bss_prio_tbl[i].bss_prio_cur = NULL; | |
423 | spin_lock_init(&adapter->bss_prio_tbl[i].bss_prio_lock); | |
424 | } | |
425 | ||
426 | for (i = 0; i < adapter->priv_num; i++) { | |
427 | if (!adapter->priv[i]) | |
428 | continue; | |
429 | priv = adapter->priv[i]; | |
430 | for (j = 0; j < MAX_NUM_TID; ++j) { | |
431 | INIT_LIST_HEAD(&priv->wmm.tid_tbl_ptr[j].ra_list); | |
432 | spin_lock_init(&priv->wmm.tid_tbl_ptr[j].tid_tbl_lock); | |
433 | } | |
434 | INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr); | |
435 | INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr); | |
436 | ||
437 | spin_lock_init(&priv->tx_ba_stream_tbl_lock); | |
438 | spin_lock_init(&priv->rx_reorder_tbl_lock); | |
439 | } | |
440 | ||
441 | return 0; | |
442 | } | |
443 | ||
5e6e3a92 BZ |
444 | /* |
445 | * This function initializes the firmware. | |
446 | * | |
447 | * The following operations are performed sequentially - | |
448 | * - Allocate adapter structure | |
449 | * - Initialize the adapter structure | |
450 | * - Initialize the private structure | |
451 | * - Add BSS priority tables to the adapter structure | |
452 | * - For each interface, send the init commands to firmware | |
453 | * - Send the first command in command pending queue, if available | |
454 | */ | |
455 | int mwifiex_init_fw(struct mwifiex_adapter *adapter) | |
456 | { | |
270e58e8 YAP |
457 | int ret; |
458 | struct mwifiex_private *priv; | |
459 | u8 i, first_sta = true; | |
5e6e3a92 BZ |
460 | int is_cmd_pend_q_empty; |
461 | unsigned long flags; | |
462 | ||
463 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; | |
464 | ||
465 | /* Allocate memory for member of adapter structure */ | |
466 | ret = mwifiex_allocate_adapter(adapter); | |
467 | if (ret) | |
468 | return -1; | |
469 | ||
470 | /* Initialize adapter structure */ | |
471 | mwifiex_init_adapter(adapter); | |
472 | ||
473 | for (i = 0; i < adapter->priv_num; i++) { | |
474 | if (adapter->priv[i]) { | |
475 | priv = adapter->priv[i]; | |
476 | ||
477 | /* Initialize private structure */ | |
478 | ret = mwifiex_init_priv(priv); | |
479 | if (ret) | |
480 | return -1; | |
481 | } | |
482 | } | |
483 | for (i = 0; i < adapter->priv_num; i++) { | |
484 | if (adapter->priv[i]) { | |
485 | ret = mwifiex_sta_init_cmd(adapter->priv[i], first_sta); | |
486 | if (ret == -1) | |
487 | return -1; | |
488 | ||
489 | first_sta = false; | |
490 | } | |
491 | } | |
492 | ||
493 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
494 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
495 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
496 | if (!is_cmd_pend_q_empty) { | |
497 | /* Send the first command in queue and return */ | |
498 | if (mwifiex_main_process(adapter) != -1) | |
499 | ret = -EINPROGRESS; | |
500 | } else { | |
501 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
502 | } | |
503 | ||
504 | return ret; | |
505 | } | |
506 | ||
507 | /* | |
508 | * This function deletes the BSS priority tables. | |
509 | * | |
510 | * The function traverses through all the allocated BSS priority nodes | |
511 | * in every BSS priority table and frees them. | |
512 | */ | |
513 | static void mwifiex_delete_bss_prio_tbl(struct mwifiex_private *priv) | |
514 | { | |
515 | int i; | |
516 | struct mwifiex_adapter *adapter = priv->adapter; | |
270e58e8 | 517 | struct mwifiex_bss_prio_node *bssprio_node, *tmp_node, **cur; |
5e6e3a92 | 518 | struct list_head *head; |
931f1584 | 519 | spinlock_t *lock; /* bss priority lock */ |
5e6e3a92 BZ |
520 | unsigned long flags; |
521 | ||
522 | for (i = 0; i < adapter->priv_num; ++i) { | |
523 | head = &adapter->bss_prio_tbl[i].bss_prio_head; | |
524 | cur = &adapter->bss_prio_tbl[i].bss_prio_cur; | |
525 | lock = &adapter->bss_prio_tbl[i].bss_prio_lock; | |
526 | dev_dbg(adapter->dev, "info: delete BSS priority table," | |
9da9a3b2 YAP |
527 | " bss_type = %d, bss_num = %d, i = %d," |
528 | " head = %p, cur = %p\n", | |
529 | priv->bss_type, priv->bss_num, i, head, *cur); | |
5e6e3a92 BZ |
530 | if (*cur) { |
531 | spin_lock_irqsave(lock, flags); | |
532 | if (list_empty(head)) { | |
533 | spin_unlock_irqrestore(lock, flags); | |
534 | continue; | |
535 | } | |
536 | bssprio_node = list_first_entry(head, | |
537 | struct mwifiex_bss_prio_node, list); | |
538 | spin_unlock_irqrestore(lock, flags); | |
539 | ||
540 | list_for_each_entry_safe(bssprio_node, tmp_node, head, | |
541 | list) { | |
542 | if (bssprio_node->priv == priv) { | |
543 | dev_dbg(adapter->dev, "info: Delete " | |
544 | "node %p, next = %p\n", | |
545 | bssprio_node, tmp_node); | |
546 | spin_lock_irqsave(lock, flags); | |
547 | list_del(&bssprio_node->list); | |
548 | spin_unlock_irqrestore(lock, flags); | |
549 | kfree(bssprio_node); | |
550 | } | |
551 | } | |
552 | *cur = (struct mwifiex_bss_prio_node *)head; | |
553 | } | |
554 | } | |
555 | } | |
556 | ||
557 | /* | |
558 | * This function is used to shutdown the driver. | |
559 | * | |
560 | * The following operations are performed sequentially - | |
561 | * - Check if already shut down | |
562 | * - Make sure the main process has stopped | |
563 | * - Clean up the Tx and Rx queues | |
564 | * - Delete BSS priority tables | |
565 | * - Free the adapter | |
566 | * - Notify completion | |
567 | */ | |
568 | int | |
569 | mwifiex_shutdown_drv(struct mwifiex_adapter *adapter) | |
570 | { | |
571 | int ret = -EINPROGRESS; | |
270e58e8 YAP |
572 | struct mwifiex_private *priv; |
573 | s32 i; | |
5e6e3a92 BZ |
574 | unsigned long flags; |
575 | ||
576 | /* mwifiex already shutdown */ | |
577 | if (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY) | |
578 | return 0; | |
579 | ||
580 | adapter->hw_status = MWIFIEX_HW_STATUS_CLOSING; | |
581 | /* wait for mwifiex_process to complete */ | |
582 | if (adapter->mwifiex_processing) { | |
583 | dev_warn(adapter->dev, "main process is still running\n"); | |
584 | return ret; | |
585 | } | |
586 | ||
587 | /* shut down mwifiex */ | |
588 | dev_dbg(adapter->dev, "info: shutdown mwifiex...\n"); | |
589 | ||
590 | /* Clean up Tx/Rx queues and delete BSS priority table */ | |
591 | for (i = 0; i < adapter->priv_num; i++) { | |
592 | if (adapter->priv[i]) { | |
593 | priv = adapter->priv[i]; | |
594 | ||
595 | mwifiex_clean_txrx(priv); | |
596 | mwifiex_delete_bss_prio_tbl(priv); | |
597 | } | |
598 | } | |
599 | ||
600 | spin_lock_irqsave(&adapter->mwifiex_lock, flags); | |
601 | ||
602 | /* Free adapter structure */ | |
603 | mwifiex_free_adapter(adapter); | |
604 | ||
605 | spin_unlock_irqrestore(&adapter->mwifiex_lock, flags); | |
606 | ||
607 | /* Notify completion */ | |
608 | ret = mwifiex_shutdown_fw_complete(adapter); | |
609 | ||
610 | return ret; | |
611 | } | |
612 | ||
613 | /* | |
614 | * This function downloads the firmware to the card. | |
615 | * | |
616 | * The actual download is preceded by two sanity checks - | |
617 | * - Check if firmware is already running | |
618 | * - Check if the interface is the winner to download the firmware | |
619 | * | |
620 | * ...and followed by another - | |
621 | * - Check if the firmware is downloaded successfully | |
622 | * | |
623 | * After download is successfully completed, the host interrupts are enabled. | |
624 | */ | |
625 | int mwifiex_dnld_fw(struct mwifiex_adapter *adapter, | |
626 | struct mwifiex_fw_image *pmfw) | |
627 | { | |
d930faee | 628 | int ret; |
5e6e3a92 | 629 | u32 poll_num = 1; |
5e6e3a92 | 630 | |
d930faee AK |
631 | adapter->winner = 0; |
632 | ||
5e6e3a92 | 633 | /* Check if firmware is already running */ |
d930faee | 634 | ret = adapter->if_ops.check_fw_status(adapter, poll_num); |
5e6e3a92 BZ |
635 | if (!ret) { |
636 | dev_notice(adapter->dev, | |
931f1584 | 637 | "WLAN FW already running! Skip FW download\n"); |
5e6e3a92 BZ |
638 | goto done; |
639 | } | |
640 | poll_num = MAX_FIRMWARE_POLL_TRIES; | |
641 | ||
642 | /* Check if we are the winner for downloading FW */ | |
d930faee | 643 | if (!adapter->winner) { |
5e6e3a92 | 644 | dev_notice(adapter->dev, |
931f1584 | 645 | "Other intf already running! Skip FW download\n"); |
5e6e3a92 BZ |
646 | poll_num = MAX_MULTI_INTERFACE_POLL_TRIES; |
647 | goto poll_fw; | |
648 | } | |
649 | if (pmfw) { | |
650 | /* Download firmware with helper */ | |
651 | ret = adapter->if_ops.prog_fw(adapter, pmfw); | |
652 | if (ret) { | |
653 | dev_err(adapter->dev, "prog_fw failed ret=%#x\n", ret); | |
654 | return ret; | |
655 | } | |
656 | } | |
657 | ||
658 | poll_fw: | |
659 | /* Check if the firmware is downloaded successfully or not */ | |
d930faee | 660 | ret = adapter->if_ops.check_fw_status(adapter, poll_num); |
5e6e3a92 BZ |
661 | if (ret) { |
662 | dev_err(adapter->dev, "FW failed to be active in time\n"); | |
663 | return -1; | |
664 | } | |
665 | done: | |
666 | /* re-enable host interrupt for mwifiex after fw dnld is successful */ | |
667 | adapter->if_ops.enable_int(adapter); | |
668 | return ret; | |
669 | } |