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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 | ||
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; | |
13d7ba78 AP |
134 | priv->wps_ie = NULL; |
135 | priv->wps_ie_len = 0; | |
5e6e3a92 BZ |
136 | |
137 | priv->scan_block = false; | |
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 | ||
234 | adapter->max_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
235 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
236 | adapter->curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
237 | ||
238 | adapter->is_hs_configured = false; | |
239 | adapter->hs_cfg.conditions = cpu_to_le32(HOST_SLEEP_CFG_COND_DEF); | |
240 | adapter->hs_cfg.gpio = HOST_SLEEP_CFG_GPIO_DEF; | |
241 | adapter->hs_cfg.gap = HOST_SLEEP_CFG_GAP_DEF; | |
242 | adapter->hs_activated = false; | |
243 | ||
244 | memset(adapter->event_body, 0, sizeof(adapter->event_body)); | |
245 | adapter->hw_dot_11n_dev_cap = 0; | |
246 | adapter->hw_dev_mcs_support = 0; | |
21c3ba34 | 247 | adapter->sec_chan_offset = 0; |
5e6e3a92 BZ |
248 | adapter->adhoc_11n_enabled = false; |
249 | ||
250 | mwifiex_wmm_init(adapter); | |
251 | ||
252 | if (adapter->sleep_cfm) { | |
8ed13033 YAP |
253 | sleep_cfm_buf = (struct mwifiex_opt_sleep_confirm *) |
254 | adapter->sleep_cfm->data; | |
7cc5eb62 AK |
255 | memset(sleep_cfm_buf, 0, adapter->sleep_cfm->len); |
256 | sleep_cfm_buf->command = | |
257 | cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH); | |
258 | sleep_cfm_buf->size = | |
259 | cpu_to_le16(adapter->sleep_cfm->len); | |
260 | sleep_cfm_buf->result = 0; | |
261 | sleep_cfm_buf->action = cpu_to_le16(SLEEP_CONFIRM); | |
262 | sleep_cfm_buf->resp_ctrl = cpu_to_le16(RESP_NEEDED); | |
5e6e3a92 BZ |
263 | } |
264 | memset(&adapter->sleep_params, 0, sizeof(adapter->sleep_params)); | |
265 | memset(&adapter->sleep_period, 0, sizeof(adapter->sleep_period)); | |
266 | adapter->tx_lock_flag = false; | |
267 | adapter->null_pkt_interval = 0; | |
268 | adapter->fw_bands = 0; | |
269 | adapter->config_bands = 0; | |
270 | adapter->adhoc_start_band = 0; | |
271 | adapter->scan_channels = NULL; | |
272 | adapter->fw_release_number = 0; | |
273 | adapter->fw_cap_info = 0; | |
274 | memset(&adapter->upld_buf, 0, sizeof(adapter->upld_buf)); | |
275 | adapter->event_cause = 0; | |
276 | adapter->region_code = 0; | |
277 | adapter->bcn_miss_time_out = DEFAULT_BCN_MISS_TIMEOUT; | |
278 | adapter->adhoc_awake_period = 0; | |
279 | memset(&adapter->arp_filter, 0, sizeof(adapter->arp_filter)); | |
280 | adapter->arp_filter_size = 0; | |
3dc5e175 | 281 | adapter->channel_type = NL80211_CHAN_HT20; |
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; | |
304 | ||
305 | spin_lock_irqsave(&adapter->queue_lock, dev_queue_flags); | |
306 | netif_tx_wake_all_queues(netdev); | |
307 | spin_unlock_irqrestore(&adapter->queue_lock, dev_queue_flags); | |
308 | } | |
309 | ||
310 | /* | |
311 | * This function stops all queues in net_device | |
312 | */ | |
313 | void mwifiex_stop_net_dev_queue(struct net_device *netdev, | |
314 | struct mwifiex_adapter *adapter) | |
315 | { | |
316 | unsigned long dev_queue_flags; | |
317 | ||
318 | spin_lock_irqsave(&adapter->queue_lock, dev_queue_flags); | |
319 | netif_tx_stop_all_queues(netdev); | |
320 | spin_unlock_irqrestore(&adapter->queue_lock, dev_queue_flags); | |
321 | } | |
322 | ||
711825a0 AK |
323 | /* |
324 | * This function releases the lock variables and frees the locks and | |
325 | * associated locks. | |
326 | */ | |
327 | static void mwifiex_free_lock_list(struct mwifiex_adapter *adapter) | |
328 | { | |
329 | struct mwifiex_private *priv; | |
330 | s32 i, j; | |
331 | ||
332 | /* Free lists */ | |
333 | list_del(&adapter->cmd_free_q); | |
334 | list_del(&adapter->cmd_pending_q); | |
335 | list_del(&adapter->scan_pending_q); | |
336 | ||
337 | for (i = 0; i < adapter->priv_num; i++) | |
338 | list_del(&adapter->bss_prio_tbl[i].bss_prio_head); | |
339 | ||
340 | for (i = 0; i < adapter->priv_num; i++) { | |
341 | if (adapter->priv[i]) { | |
342 | priv = adapter->priv[i]; | |
343 | for (j = 0; j < MAX_NUM_TID; ++j) | |
344 | list_del(&priv->wmm.tid_tbl_ptr[j].ra_list); | |
345 | list_del(&priv->tx_ba_stream_tbl_ptr); | |
346 | list_del(&priv->rx_reorder_tbl_ptr); | |
347 | } | |
348 | } | |
349 | } | |
350 | ||
5e6e3a92 BZ |
351 | /* |
352 | * This function frees the adapter structure. | |
353 | * | |
354 | * The freeing operation is done recursively, by canceling all | |
355 | * pending commands, freeing the member buffers previously | |
356 | * allocated (command buffers, scan table buffer, sleep confirm | |
357 | * command buffer), stopping the timers and calling the cleanup | |
358 | * routines for every interface, before the actual adapter | |
359 | * structure is freed. | |
360 | */ | |
361 | static void | |
362 | mwifiex_free_adapter(struct mwifiex_adapter *adapter) | |
363 | { | |
364 | if (!adapter) { | |
365 | pr_err("%s: adapter is NULL\n", __func__); | |
366 | return; | |
367 | } | |
368 | ||
369 | mwifiex_cancel_all_pending_cmd(adapter); | |
370 | ||
371 | /* Free lock variables */ | |
372 | mwifiex_free_lock_list(adapter); | |
373 | ||
374 | /* Free command buffer */ | |
375 | dev_dbg(adapter->dev, "info: free cmd buffer\n"); | |
376 | mwifiex_free_cmd_buffer(adapter); | |
377 | ||
378 | del_timer(&adapter->cmd_timer); | |
379 | ||
380 | dev_dbg(adapter->dev, "info: free scan table\n"); | |
5e6e3a92 | 381 | |
4daffe35 AK |
382 | if (adapter->if_ops.cleanup_if) |
383 | adapter->if_ops.cleanup_if(adapter); | |
5e6e3a92 | 384 | |
2da8cbf8 AK |
385 | if (adapter->sleep_cfm) |
386 | dev_kfree_skb_any(adapter->sleep_cfm); | |
5e6e3a92 BZ |
387 | } |
388 | ||
389 | /* | |
390 | * This function intializes the lock variables and | |
391 | * the list heads. | |
392 | */ | |
393 | int mwifiex_init_lock_list(struct mwifiex_adapter *adapter) | |
394 | { | |
270e58e8 YAP |
395 | struct mwifiex_private *priv; |
396 | s32 i, j; | |
5e6e3a92 BZ |
397 | |
398 | spin_lock_init(&adapter->mwifiex_lock); | |
399 | spin_lock_init(&adapter->int_lock); | |
400 | spin_lock_init(&adapter->main_proc_lock); | |
401 | spin_lock_init(&adapter->mwifiex_cmd_lock); | |
bbea3bc4 | 402 | spin_lock_init(&adapter->queue_lock); |
5e6e3a92 BZ |
403 | for (i = 0; i < adapter->priv_num; i++) { |
404 | if (adapter->priv[i]) { | |
405 | priv = adapter->priv[i]; | |
406 | spin_lock_init(&priv->rx_pkt_lock); | |
407 | spin_lock_init(&priv->wmm.ra_list_spinlock); | |
408 | spin_lock_init(&priv->curr_bcn_buf_lock); | |
409 | } | |
410 | } | |
411 | ||
412 | /* Initialize cmd_free_q */ | |
413 | INIT_LIST_HEAD(&adapter->cmd_free_q); | |
414 | /* Initialize cmd_pending_q */ | |
415 | INIT_LIST_HEAD(&adapter->cmd_pending_q); | |
416 | /* Initialize scan_pending_q */ | |
417 | INIT_LIST_HEAD(&adapter->scan_pending_q); | |
418 | ||
419 | spin_lock_init(&adapter->cmd_free_q_lock); | |
420 | spin_lock_init(&adapter->cmd_pending_q_lock); | |
421 | spin_lock_init(&adapter->scan_pending_q_lock); | |
422 | ||
4daffe35 AK |
423 | skb_queue_head_init(&adapter->usb_rx_data_q); |
424 | ||
5e6e3a92 BZ |
425 | for (i = 0; i < adapter->priv_num; ++i) { |
426 | INIT_LIST_HEAD(&adapter->bss_prio_tbl[i].bss_prio_head); | |
427 | adapter->bss_prio_tbl[i].bss_prio_cur = NULL; | |
428 | spin_lock_init(&adapter->bss_prio_tbl[i].bss_prio_lock); | |
429 | } | |
430 | ||
431 | for (i = 0; i < adapter->priv_num; i++) { | |
432 | if (!adapter->priv[i]) | |
433 | continue; | |
434 | priv = adapter->priv[i]; | |
435 | for (j = 0; j < MAX_NUM_TID; ++j) { | |
436 | INIT_LIST_HEAD(&priv->wmm.tid_tbl_ptr[j].ra_list); | |
437 | spin_lock_init(&priv->wmm.tid_tbl_ptr[j].tid_tbl_lock); | |
438 | } | |
439 | INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr); | |
440 | INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr); | |
441 | ||
442 | spin_lock_init(&priv->tx_ba_stream_tbl_lock); | |
443 | spin_lock_init(&priv->rx_reorder_tbl_lock); | |
444 | } | |
445 | ||
446 | return 0; | |
447 | } | |
448 | ||
5e6e3a92 BZ |
449 | /* |
450 | * This function initializes the firmware. | |
451 | * | |
452 | * The following operations are performed sequentially - | |
453 | * - Allocate adapter structure | |
454 | * - Initialize the adapter structure | |
455 | * - Initialize the private structure | |
456 | * - Add BSS priority tables to the adapter structure | |
457 | * - For each interface, send the init commands to firmware | |
458 | * - Send the first command in command pending queue, if available | |
459 | */ | |
460 | int mwifiex_init_fw(struct mwifiex_adapter *adapter) | |
461 | { | |
270e58e8 YAP |
462 | int ret; |
463 | struct mwifiex_private *priv; | |
464 | u8 i, first_sta = true; | |
5e6e3a92 BZ |
465 | int is_cmd_pend_q_empty; |
466 | unsigned long flags; | |
467 | ||
468 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; | |
469 | ||
470 | /* Allocate memory for member of adapter structure */ | |
471 | ret = mwifiex_allocate_adapter(adapter); | |
472 | if (ret) | |
473 | return -1; | |
474 | ||
475 | /* Initialize adapter structure */ | |
476 | mwifiex_init_adapter(adapter); | |
477 | ||
478 | for (i = 0; i < adapter->priv_num; i++) { | |
479 | if (adapter->priv[i]) { | |
480 | priv = adapter->priv[i]; | |
481 | ||
482 | /* Initialize private structure */ | |
483 | ret = mwifiex_init_priv(priv); | |
484 | if (ret) | |
485 | return -1; | |
486 | } | |
487 | } | |
488 | for (i = 0; i < adapter->priv_num; i++) { | |
489 | if (adapter->priv[i]) { | |
490 | ret = mwifiex_sta_init_cmd(adapter->priv[i], first_sta); | |
491 | if (ret == -1) | |
492 | return -1; | |
493 | ||
494 | first_sta = false; | |
495 | } | |
496 | } | |
497 | ||
498 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
499 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
500 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
501 | if (!is_cmd_pend_q_empty) { | |
502 | /* Send the first command in queue and return */ | |
503 | if (mwifiex_main_process(adapter) != -1) | |
504 | ret = -EINPROGRESS; | |
505 | } else { | |
506 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
507 | } | |
508 | ||
509 | return ret; | |
510 | } | |
511 | ||
512 | /* | |
513 | * This function deletes the BSS priority tables. | |
514 | * | |
515 | * The function traverses through all the allocated BSS priority nodes | |
516 | * in every BSS priority table and frees them. | |
517 | */ | |
518 | static void mwifiex_delete_bss_prio_tbl(struct mwifiex_private *priv) | |
519 | { | |
520 | int i; | |
521 | struct mwifiex_adapter *adapter = priv->adapter; | |
270e58e8 | 522 | struct mwifiex_bss_prio_node *bssprio_node, *tmp_node, **cur; |
5e6e3a92 | 523 | struct list_head *head; |
931f1584 | 524 | spinlock_t *lock; /* bss priority lock */ |
5e6e3a92 BZ |
525 | unsigned long flags; |
526 | ||
527 | for (i = 0; i < adapter->priv_num; ++i) { | |
528 | head = &adapter->bss_prio_tbl[i].bss_prio_head; | |
529 | cur = &adapter->bss_prio_tbl[i].bss_prio_cur; | |
530 | lock = &adapter->bss_prio_tbl[i].bss_prio_lock; | |
531 | dev_dbg(adapter->dev, "info: delete BSS priority table," | |
9da9a3b2 YAP |
532 | " bss_type = %d, bss_num = %d, i = %d," |
533 | " head = %p, cur = %p\n", | |
534 | priv->bss_type, priv->bss_num, i, head, *cur); | |
5e6e3a92 BZ |
535 | if (*cur) { |
536 | spin_lock_irqsave(lock, flags); | |
537 | if (list_empty(head)) { | |
538 | spin_unlock_irqrestore(lock, flags); | |
539 | continue; | |
540 | } | |
541 | bssprio_node = list_first_entry(head, | |
542 | struct mwifiex_bss_prio_node, list); | |
543 | spin_unlock_irqrestore(lock, flags); | |
544 | ||
545 | list_for_each_entry_safe(bssprio_node, tmp_node, head, | |
546 | list) { | |
547 | if (bssprio_node->priv == priv) { | |
548 | dev_dbg(adapter->dev, "info: Delete " | |
549 | "node %p, next = %p\n", | |
550 | bssprio_node, tmp_node); | |
551 | spin_lock_irqsave(lock, flags); | |
552 | list_del(&bssprio_node->list); | |
553 | spin_unlock_irqrestore(lock, flags); | |
554 | kfree(bssprio_node); | |
555 | } | |
556 | } | |
557 | *cur = (struct mwifiex_bss_prio_node *)head; | |
558 | } | |
559 | } | |
560 | } | |
561 | ||
562 | /* | |
563 | * This function is used to shutdown the driver. | |
564 | * | |
565 | * The following operations are performed sequentially - | |
566 | * - Check if already shut down | |
567 | * - Make sure the main process has stopped | |
568 | * - Clean up the Tx and Rx queues | |
569 | * - Delete BSS priority tables | |
570 | * - Free the adapter | |
571 | * - Notify completion | |
572 | */ | |
573 | int | |
574 | mwifiex_shutdown_drv(struct mwifiex_adapter *adapter) | |
575 | { | |
576 | int ret = -EINPROGRESS; | |
270e58e8 YAP |
577 | struct mwifiex_private *priv; |
578 | s32 i; | |
5e6e3a92 | 579 | unsigned long flags; |
4daffe35 | 580 | struct sk_buff *skb; |
5e6e3a92 BZ |
581 | |
582 | /* mwifiex already shutdown */ | |
583 | if (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY) | |
584 | return 0; | |
585 | ||
586 | adapter->hw_status = MWIFIEX_HW_STATUS_CLOSING; | |
587 | /* wait for mwifiex_process to complete */ | |
588 | if (adapter->mwifiex_processing) { | |
589 | dev_warn(adapter->dev, "main process is still running\n"); | |
590 | return ret; | |
591 | } | |
592 | ||
593 | /* shut down mwifiex */ | |
594 | dev_dbg(adapter->dev, "info: shutdown mwifiex...\n"); | |
595 | ||
596 | /* Clean up Tx/Rx queues and delete BSS priority table */ | |
597 | for (i = 0; i < adapter->priv_num; i++) { | |
598 | if (adapter->priv[i]) { | |
599 | priv = adapter->priv[i]; | |
600 | ||
601 | mwifiex_clean_txrx(priv); | |
602 | mwifiex_delete_bss_prio_tbl(priv); | |
603 | } | |
604 | } | |
605 | ||
606 | spin_lock_irqsave(&adapter->mwifiex_lock, flags); | |
607 | ||
4daffe35 AK |
608 | if (adapter->if_ops.data_complete) { |
609 | while ((skb = skb_dequeue(&adapter->usb_rx_data_q))) { | |
610 | struct mwifiex_rxinfo *rx_info = MWIFIEX_SKB_RXCB(skb); | |
611 | ||
612 | priv = adapter->priv[rx_info->bss_num]; | |
613 | if (priv) | |
614 | priv->stats.rx_dropped++; | |
615 | ||
616 | adapter->if_ops.data_complete(adapter, skb); | |
617 | } | |
618 | } | |
619 | ||
5e6e3a92 BZ |
620 | /* Free adapter structure */ |
621 | mwifiex_free_adapter(adapter); | |
622 | ||
623 | spin_unlock_irqrestore(&adapter->mwifiex_lock, flags); | |
624 | ||
625 | /* Notify completion */ | |
626 | ret = mwifiex_shutdown_fw_complete(adapter); | |
627 | ||
628 | return ret; | |
629 | } | |
630 | ||
631 | /* | |
632 | * This function downloads the firmware to the card. | |
633 | * | |
634 | * The actual download is preceded by two sanity checks - | |
635 | * - Check if firmware is already running | |
636 | * - Check if the interface is the winner to download the firmware | |
637 | * | |
638 | * ...and followed by another - | |
639 | * - Check if the firmware is downloaded successfully | |
640 | * | |
641 | * After download is successfully completed, the host interrupts are enabled. | |
642 | */ | |
643 | int mwifiex_dnld_fw(struct mwifiex_adapter *adapter, | |
644 | struct mwifiex_fw_image *pmfw) | |
645 | { | |
d930faee | 646 | int ret; |
5e6e3a92 | 647 | u32 poll_num = 1; |
5e6e3a92 | 648 | |
4daffe35 AK |
649 | if (adapter->if_ops.check_fw_status) { |
650 | adapter->winner = 0; | |
d930faee | 651 | |
4daffe35 AK |
652 | /* check if firmware is already running */ |
653 | ret = adapter->if_ops.check_fw_status(adapter, poll_num); | |
654 | if (!ret) { | |
655 | dev_notice(adapter->dev, | |
656 | "WLAN FW already running! Skip FW dnld\n"); | |
657 | goto done; | |
658 | } | |
659 | ||
660 | poll_num = MAX_FIRMWARE_POLL_TRIES; | |
661 | ||
662 | /* check if we are the winner for downloading FW */ | |
663 | if (!adapter->winner) { | |
664 | dev_notice(adapter->dev, | |
665 | "FW already running! Skip FW dnld\n"); | |
666 | poll_num = MAX_MULTI_INTERFACE_POLL_TRIES; | |
667 | goto poll_fw; | |
668 | } | |
5e6e3a92 | 669 | } |
4daffe35 | 670 | |
5e6e3a92 BZ |
671 | if (pmfw) { |
672 | /* Download firmware with helper */ | |
673 | ret = adapter->if_ops.prog_fw(adapter, pmfw); | |
674 | if (ret) { | |
675 | dev_err(adapter->dev, "prog_fw failed ret=%#x\n", ret); | |
676 | return ret; | |
677 | } | |
678 | } | |
679 | ||
680 | poll_fw: | |
681 | /* Check if the firmware is downloaded successfully or not */ | |
d930faee | 682 | ret = adapter->if_ops.check_fw_status(adapter, poll_num); |
5e6e3a92 BZ |
683 | if (ret) { |
684 | dev_err(adapter->dev, "FW failed to be active in time\n"); | |
685 | return -1; | |
686 | } | |
687 | done: | |
688 | /* re-enable host interrupt for mwifiex after fw dnld is successful */ | |
4daffe35 AK |
689 | if (adapter->if_ops.enable_int) |
690 | adapter->if_ops.enable_int(adapter); | |
691 | ||
5e6e3a92 BZ |
692 | return ret; |
693 | } |