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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; | |
5e6e3a92 BZ |
38 | unsigned long flags; |
39 | ||
40 | bss_prio = kzalloc(sizeof(struct mwifiex_bss_prio_node), GFP_KERNEL); | |
41 | if (!bss_prio) { | |
42 | dev_err(adapter->dev, "%s: failed to alloc bss_prio\n", | |
43 | __func__); | |
b53575ec | 44 | return -ENOMEM; |
5e6e3a92 BZ |
45 | } |
46 | ||
47 | bss_prio->priv = priv; | |
48 | INIT_LIST_HEAD(&bss_prio->list); | |
49 | if (!adapter->bss_prio_tbl[priv->bss_priority].bss_prio_cur) | |
50 | adapter->bss_prio_tbl[priv->bss_priority].bss_prio_cur = | |
51 | bss_prio; | |
52 | ||
53 | spin_lock_irqsave(&adapter->bss_prio_tbl[priv->bss_priority] | |
54 | .bss_prio_lock, flags); | |
55 | list_add_tail(&bss_prio->list, | |
56 | &adapter->bss_prio_tbl[priv->bss_priority] | |
57 | .bss_prio_head); | |
58 | spin_unlock_irqrestore(&adapter->bss_prio_tbl[priv->bss_priority] | |
59 | .bss_prio_lock, flags); | |
60 | ||
600f5d90 | 61 | return 0; |
5e6e3a92 BZ |
62 | } |
63 | ||
64 | /* | |
65 | * This function initializes the private structure and sets default | |
66 | * values to the members. | |
67 | * | |
68 | * Additionally, it also initializes all the locks and sets up all the | |
69 | * lists. | |
70 | */ | |
71 | static int mwifiex_init_priv(struct mwifiex_private *priv) | |
72 | { | |
73 | u32 i; | |
5e6e3a92 BZ |
74 | |
75 | priv->media_connected = false; | |
76 | memset(priv->curr_addr, 0xff, ETH_ALEN); | |
77 | ||
78 | priv->pkt_tx_ctrl = 0; | |
eecd8250 | 79 | priv->bss_mode = NL80211_IFTYPE_STATION; |
5e6e3a92 BZ |
80 | priv->data_rate = 0; /* Initially indicate the rate as auto */ |
81 | priv->is_data_rate_auto = true; | |
82 | priv->bcn_avg_factor = DEFAULT_BCN_AVG_FACTOR; | |
83 | priv->data_avg_factor = DEFAULT_DATA_AVG_FACTOR; | |
84 | ||
85 | priv->sec_info.wep_status = MWIFIEX_802_11_WEP_DISABLED; | |
f986b6d5 | 86 | priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM; |
2be50b8d | 87 | priv->sec_info.encryption_mode = 0; |
5e6e3a92 BZ |
88 | for (i = 0; i < ARRAY_SIZE(priv->wep_key); i++) |
89 | memset(&priv->wep_key[i], 0, sizeof(struct mwifiex_wep_key)); | |
90 | priv->wep_key_curr_index = 0; | |
91 | priv->curr_pkt_filter = HostCmd_ACT_MAC_RX_ON | HostCmd_ACT_MAC_TX_ON | | |
92 | HostCmd_ACT_MAC_ETHERNETII_ENABLE; | |
93 | ||
94 | priv->beacon_period = 100; /* beacon interval */ ; | |
95 | priv->attempted_bss_desc = NULL; | |
96 | memset(&priv->curr_bss_params, 0, sizeof(priv->curr_bss_params)); | |
97 | priv->listen_interval = MWIFIEX_DEFAULT_LISTEN_INTERVAL; | |
98 | ||
99 | memset(&priv->prev_ssid, 0, sizeof(priv->prev_ssid)); | |
100 | memset(&priv->prev_bssid, 0, sizeof(priv->prev_bssid)); | |
101 | memset(&priv->assoc_rsp_buf, 0, sizeof(priv->assoc_rsp_buf)); | |
102 | priv->assoc_rsp_size = 0; | |
103 | priv->adhoc_channel = DEFAULT_AD_HOC_CHANNEL; | |
104 | priv->atim_window = 0; | |
105 | priv->adhoc_state = ADHOC_IDLE; | |
106 | priv->tx_power_level = 0; | |
107 | priv->max_tx_power_level = 0; | |
108 | priv->min_tx_power_level = 0; | |
109 | priv->tx_rate = 0; | |
110 | priv->rxpd_htinfo = 0; | |
111 | priv->rxpd_rate = 0; | |
112 | priv->rate_bitmap = 0; | |
113 | priv->data_rssi_last = 0; | |
114 | priv->data_rssi_avg = 0; | |
115 | priv->data_nf_avg = 0; | |
116 | priv->data_nf_last = 0; | |
117 | priv->bcn_rssi_last = 0; | |
118 | priv->bcn_rssi_avg = 0; | |
119 | priv->bcn_nf_avg = 0; | |
120 | priv->bcn_nf_last = 0; | |
121 | memset(&priv->wpa_ie, 0, sizeof(priv->wpa_ie)); | |
122 | memset(&priv->aes_key, 0, sizeof(priv->aes_key)); | |
123 | priv->wpa_ie_len = 0; | |
124 | priv->wpa_is_gtk_set = false; | |
125 | ||
126 | memset(&priv->assoc_tlv_buf, 0, sizeof(priv->assoc_tlv_buf)); | |
127 | priv->assoc_tlv_buf_len = 0; | |
128 | memset(&priv->wps, 0, sizeof(priv->wps)); | |
129 | memset(&priv->gen_ie_buf, 0, sizeof(priv->gen_ie_buf)); | |
130 | priv->gen_ie_buf_len = 0; | |
131 | memset(priv->vs_ie, 0, sizeof(priv->vs_ie)); | |
132 | ||
133 | priv->wmm_required = true; | |
134 | priv->wmm_enabled = false; | |
135 | priv->wmm_qosinfo = 0; | |
136 | priv->curr_bcn_buf = NULL; | |
137 | priv->curr_bcn_size = 0; | |
138 | ||
139 | priv->scan_block = false; | |
140 | ||
636c4598 | 141 | return mwifiex_add_bss_prio_tbl(priv); |
5e6e3a92 BZ |
142 | } |
143 | ||
144 | /* | |
145 | * This function allocates buffers for members of the adapter | |
146 | * structure. | |
147 | * | |
148 | * The memory allocated includes scan table, command buffers, and | |
149 | * sleep confirm command buffer. In addition, the queues are | |
150 | * also initialized. | |
151 | */ | |
152 | static int mwifiex_allocate_adapter(struct mwifiex_adapter *adapter) | |
153 | { | |
270e58e8 | 154 | int ret; |
5e6e3a92 BZ |
155 | u32 buf_size; |
156 | struct mwifiex_bssdescriptor *temp_scan_table; | |
157 | ||
158 | /* Allocate buffer to store the BSSID list */ | |
159 | buf_size = sizeof(struct mwifiex_bssdescriptor) * IW_MAX_AP; | |
160 | temp_scan_table = kzalloc(buf_size, GFP_KERNEL); | |
161 | if (!temp_scan_table) { | |
162 | dev_err(adapter->dev, "%s: failed to alloc temp_scan_table\n", | |
163 | __func__); | |
b53575ec | 164 | return -ENOMEM; |
5e6e3a92 BZ |
165 | } |
166 | ||
167 | adapter->scan_table = temp_scan_table; | |
168 | ||
169 | /* Allocate command buffer */ | |
170 | ret = mwifiex_alloc_cmd_buffer(adapter); | |
171 | if (ret) { | |
172 | dev_err(adapter->dev, "%s: failed to alloc cmd buffer\n", | |
173 | __func__); | |
174 | return -1; | |
175 | } | |
176 | ||
177 | adapter->sleep_cfm = | |
178 | dev_alloc_skb(sizeof(struct mwifiex_opt_sleep_confirm_buffer) | |
179 | + INTF_HEADER_LEN); | |
180 | ||
181 | if (!adapter->sleep_cfm) { | |
182 | dev_err(adapter->dev, "%s: failed to alloc sleep cfm" | |
183 | " cmd buffer\n", __func__); | |
184 | return -1; | |
185 | } | |
186 | skb_reserve(adapter->sleep_cfm, INTF_HEADER_LEN); | |
187 | ||
188 | return 0; | |
189 | } | |
190 | ||
191 | /* | |
192 | * This function initializes the adapter structure and sets default | |
193 | * values to the members of adapter. | |
194 | * | |
195 | * This also initializes the WMM related parameters in the driver private | |
196 | * structures. | |
197 | */ | |
198 | static void mwifiex_init_adapter(struct mwifiex_adapter *adapter) | |
199 | { | |
200 | struct mwifiex_opt_sleep_confirm_buffer *sleep_cfm_buf = NULL; | |
201 | ||
202 | skb_put(adapter->sleep_cfm, sizeof(sleep_cfm_buf->ps_cfm_sleep)); | |
203 | sleep_cfm_buf = (struct mwifiex_opt_sleep_confirm_buffer *) | |
204 | (adapter->sleep_cfm->data); | |
205 | ||
206 | adapter->cmd_sent = false; | |
207 | adapter->data_sent = true; | |
208 | adapter->cmd_resp_received = false; | |
209 | adapter->event_received = false; | |
210 | adapter->data_received = false; | |
211 | ||
212 | adapter->surprise_removed = false; | |
213 | ||
214 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; | |
215 | ||
216 | adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM; | |
217 | adapter->ps_state = PS_STATE_AWAKE; | |
218 | adapter->need_to_wakeup = false; | |
219 | ||
220 | adapter->scan_mode = HostCmd_BSS_MODE_ANY; | |
221 | adapter->specific_scan_time = MWIFIEX_SPECIFIC_SCAN_CHAN_TIME; | |
222 | adapter->active_scan_time = MWIFIEX_ACTIVE_SCAN_CHAN_TIME; | |
223 | adapter->passive_scan_time = MWIFIEX_PASSIVE_SCAN_CHAN_TIME; | |
224 | ||
225 | adapter->num_in_scan_table = 0; | |
226 | memset(adapter->scan_table, 0, | |
227 | (sizeof(struct mwifiex_bssdescriptor) * IW_MAX_AP)); | |
228 | adapter->scan_probes = 1; | |
229 | ||
230 | memset(adapter->bcn_buf, 0, sizeof(adapter->bcn_buf)); | |
231 | adapter->bcn_buf_end = adapter->bcn_buf; | |
232 | ||
5e6e3a92 BZ |
233 | adapter->multiple_dtim = 1; |
234 | ||
235 | adapter->local_listen_interval = 0; /* default value in firmware | |
236 | will be used */ | |
237 | ||
238 | adapter->is_deep_sleep = false; | |
239 | ||
240 | adapter->delay_null_pkt = false; | |
241 | adapter->delay_to_ps = 1000; | |
242 | adapter->enhanced_ps_mode = PS_MODE_AUTO; | |
243 | ||
244 | adapter->gen_null_pkt = false; /* Disable NULL Pkg generation by | |
245 | default */ | |
246 | adapter->pps_uapsd_mode = false; /* Disable pps/uapsd mode by | |
247 | default */ | |
248 | adapter->pm_wakeup_card_req = false; | |
249 | ||
250 | adapter->pm_wakeup_fw_try = false; | |
251 | ||
252 | adapter->max_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
253 | adapter->tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
254 | adapter->curr_tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K; | |
255 | ||
256 | adapter->is_hs_configured = false; | |
257 | adapter->hs_cfg.conditions = cpu_to_le32(HOST_SLEEP_CFG_COND_DEF); | |
258 | adapter->hs_cfg.gpio = HOST_SLEEP_CFG_GPIO_DEF; | |
259 | adapter->hs_cfg.gap = HOST_SLEEP_CFG_GAP_DEF; | |
260 | adapter->hs_activated = false; | |
261 | ||
262 | memset(adapter->event_body, 0, sizeof(adapter->event_body)); | |
263 | adapter->hw_dot_11n_dev_cap = 0; | |
264 | adapter->hw_dev_mcs_support = 0; | |
5e6e3a92 BZ |
265 | adapter->chan_offset = 0; |
266 | adapter->adhoc_11n_enabled = false; | |
267 | ||
268 | mwifiex_wmm_init(adapter); | |
269 | ||
270 | if (adapter->sleep_cfm) { | |
271 | memset(&sleep_cfm_buf->ps_cfm_sleep, 0, | |
272 | adapter->sleep_cfm->len); | |
273 | sleep_cfm_buf->ps_cfm_sleep.command = | |
274 | cpu_to_le16(HostCmd_CMD_802_11_PS_MODE_ENH); | |
275 | sleep_cfm_buf->ps_cfm_sleep.size = | |
276 | cpu_to_le16(adapter->sleep_cfm->len); | |
277 | sleep_cfm_buf->ps_cfm_sleep.result = 0; | |
278 | sleep_cfm_buf->ps_cfm_sleep.action = cpu_to_le16(SLEEP_CONFIRM); | |
2b06bdbe | 279 | sleep_cfm_buf->ps_cfm_sleep.resp_ctrl = |
5e6e3a92 BZ |
280 | cpu_to_le16(RESP_NEEDED); |
281 | } | |
282 | memset(&adapter->sleep_params, 0, sizeof(adapter->sleep_params)); | |
283 | memset(&adapter->sleep_period, 0, sizeof(adapter->sleep_period)); | |
284 | adapter->tx_lock_flag = false; | |
285 | adapter->null_pkt_interval = 0; | |
286 | adapter->fw_bands = 0; | |
287 | adapter->config_bands = 0; | |
288 | adapter->adhoc_start_band = 0; | |
289 | adapter->scan_channels = NULL; | |
290 | adapter->fw_release_number = 0; | |
291 | adapter->fw_cap_info = 0; | |
292 | memset(&adapter->upld_buf, 0, sizeof(adapter->upld_buf)); | |
293 | adapter->event_cause = 0; | |
294 | adapter->region_code = 0; | |
295 | adapter->bcn_miss_time_out = DEFAULT_BCN_MISS_TIMEOUT; | |
296 | adapter->adhoc_awake_period = 0; | |
297 | memset(&adapter->arp_filter, 0, sizeof(adapter->arp_filter)); | |
298 | adapter->arp_filter_size = 0; | |
5e6e3a92 BZ |
299 | } |
300 | ||
301 | /* | |
302 | * This function frees the adapter structure. | |
303 | * | |
304 | * The freeing operation is done recursively, by canceling all | |
305 | * pending commands, freeing the member buffers previously | |
306 | * allocated (command buffers, scan table buffer, sleep confirm | |
307 | * command buffer), stopping the timers and calling the cleanup | |
308 | * routines for every interface, before the actual adapter | |
309 | * structure is freed. | |
310 | */ | |
311 | static void | |
312 | mwifiex_free_adapter(struct mwifiex_adapter *adapter) | |
313 | { | |
314 | if (!adapter) { | |
315 | pr_err("%s: adapter is NULL\n", __func__); | |
316 | return; | |
317 | } | |
318 | ||
319 | mwifiex_cancel_all_pending_cmd(adapter); | |
320 | ||
321 | /* Free lock variables */ | |
322 | mwifiex_free_lock_list(adapter); | |
323 | ||
324 | /* Free command buffer */ | |
325 | dev_dbg(adapter->dev, "info: free cmd buffer\n"); | |
326 | mwifiex_free_cmd_buffer(adapter); | |
327 | ||
328 | del_timer(&adapter->cmd_timer); | |
329 | ||
330 | dev_dbg(adapter->dev, "info: free scan table\n"); | |
331 | kfree(adapter->scan_table); | |
332 | adapter->scan_table = NULL; | |
333 | ||
334 | adapter->if_ops.cleanup_if(adapter); | |
335 | ||
336 | dev_kfree_skb_any(adapter->sleep_cfm); | |
5e6e3a92 BZ |
337 | } |
338 | ||
339 | /* | |
340 | * This function intializes the lock variables and | |
341 | * the list heads. | |
342 | */ | |
343 | int mwifiex_init_lock_list(struct mwifiex_adapter *adapter) | |
344 | { | |
270e58e8 YAP |
345 | struct mwifiex_private *priv; |
346 | s32 i, j; | |
5e6e3a92 BZ |
347 | |
348 | spin_lock_init(&adapter->mwifiex_lock); | |
349 | spin_lock_init(&adapter->int_lock); | |
350 | spin_lock_init(&adapter->main_proc_lock); | |
351 | spin_lock_init(&adapter->mwifiex_cmd_lock); | |
352 | for (i = 0; i < adapter->priv_num; i++) { | |
353 | if (adapter->priv[i]) { | |
354 | priv = adapter->priv[i]; | |
355 | spin_lock_init(&priv->rx_pkt_lock); | |
356 | spin_lock_init(&priv->wmm.ra_list_spinlock); | |
357 | spin_lock_init(&priv->curr_bcn_buf_lock); | |
358 | } | |
359 | } | |
360 | ||
361 | /* Initialize cmd_free_q */ | |
362 | INIT_LIST_HEAD(&adapter->cmd_free_q); | |
363 | /* Initialize cmd_pending_q */ | |
364 | INIT_LIST_HEAD(&adapter->cmd_pending_q); | |
365 | /* Initialize scan_pending_q */ | |
366 | INIT_LIST_HEAD(&adapter->scan_pending_q); | |
367 | ||
368 | spin_lock_init(&adapter->cmd_free_q_lock); | |
369 | spin_lock_init(&adapter->cmd_pending_q_lock); | |
370 | spin_lock_init(&adapter->scan_pending_q_lock); | |
371 | ||
372 | for (i = 0; i < adapter->priv_num; ++i) { | |
373 | INIT_LIST_HEAD(&adapter->bss_prio_tbl[i].bss_prio_head); | |
374 | adapter->bss_prio_tbl[i].bss_prio_cur = NULL; | |
375 | spin_lock_init(&adapter->bss_prio_tbl[i].bss_prio_lock); | |
376 | } | |
377 | ||
378 | for (i = 0; i < adapter->priv_num; i++) { | |
379 | if (!adapter->priv[i]) | |
380 | continue; | |
381 | priv = adapter->priv[i]; | |
382 | for (j = 0; j < MAX_NUM_TID; ++j) { | |
383 | INIT_LIST_HEAD(&priv->wmm.tid_tbl_ptr[j].ra_list); | |
384 | spin_lock_init(&priv->wmm.tid_tbl_ptr[j].tid_tbl_lock); | |
385 | } | |
386 | INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr); | |
387 | INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr); | |
388 | ||
389 | spin_lock_init(&priv->tx_ba_stream_tbl_lock); | |
390 | spin_lock_init(&priv->rx_reorder_tbl_lock); | |
391 | } | |
392 | ||
393 | return 0; | |
394 | } | |
395 | ||
396 | /* | |
397 | * This function releases the lock variables and frees the locks and | |
398 | * associated locks. | |
399 | */ | |
400 | void mwifiex_free_lock_list(struct mwifiex_adapter *adapter) | |
401 | { | |
270e58e8 YAP |
402 | struct mwifiex_private *priv; |
403 | s32 i, j; | |
5e6e3a92 BZ |
404 | |
405 | /* Free lists */ | |
406 | list_del(&adapter->cmd_free_q); | |
407 | list_del(&adapter->cmd_pending_q); | |
408 | list_del(&adapter->scan_pending_q); | |
409 | ||
410 | for (i = 0; i < adapter->priv_num; i++) | |
411 | list_del(&adapter->bss_prio_tbl[i].bss_prio_head); | |
412 | ||
413 | for (i = 0; i < adapter->priv_num; i++) { | |
414 | if (adapter->priv[i]) { | |
415 | priv = adapter->priv[i]; | |
416 | for (j = 0; j < MAX_NUM_TID; ++j) | |
417 | list_del(&priv->wmm.tid_tbl_ptr[j].ra_list); | |
418 | list_del(&priv->tx_ba_stream_tbl_ptr); | |
419 | list_del(&priv->rx_reorder_tbl_ptr); | |
420 | } | |
421 | } | |
5e6e3a92 BZ |
422 | } |
423 | ||
424 | /* | |
425 | * This function initializes the firmware. | |
426 | * | |
427 | * The following operations are performed sequentially - | |
428 | * - Allocate adapter structure | |
429 | * - Initialize the adapter structure | |
430 | * - Initialize the private structure | |
431 | * - Add BSS priority tables to the adapter structure | |
432 | * - For each interface, send the init commands to firmware | |
433 | * - Send the first command in command pending queue, if available | |
434 | */ | |
435 | int mwifiex_init_fw(struct mwifiex_adapter *adapter) | |
436 | { | |
270e58e8 YAP |
437 | int ret; |
438 | struct mwifiex_private *priv; | |
439 | u8 i, first_sta = true; | |
5e6e3a92 BZ |
440 | int is_cmd_pend_q_empty; |
441 | unsigned long flags; | |
442 | ||
443 | adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING; | |
444 | ||
445 | /* Allocate memory for member of adapter structure */ | |
446 | ret = mwifiex_allocate_adapter(adapter); | |
447 | if (ret) | |
448 | return -1; | |
449 | ||
450 | /* Initialize adapter structure */ | |
451 | mwifiex_init_adapter(adapter); | |
452 | ||
453 | for (i = 0; i < adapter->priv_num; i++) { | |
454 | if (adapter->priv[i]) { | |
455 | priv = adapter->priv[i]; | |
456 | ||
457 | /* Initialize private structure */ | |
458 | ret = mwifiex_init_priv(priv); | |
459 | if (ret) | |
460 | return -1; | |
461 | } | |
462 | } | |
463 | for (i = 0; i < adapter->priv_num; i++) { | |
464 | if (adapter->priv[i]) { | |
465 | ret = mwifiex_sta_init_cmd(adapter->priv[i], first_sta); | |
466 | if (ret == -1) | |
467 | return -1; | |
468 | ||
469 | first_sta = false; | |
470 | } | |
471 | } | |
472 | ||
473 | spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags); | |
474 | is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q); | |
475 | spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags); | |
476 | if (!is_cmd_pend_q_empty) { | |
477 | /* Send the first command in queue and return */ | |
478 | if (mwifiex_main_process(adapter) != -1) | |
479 | ret = -EINPROGRESS; | |
480 | } else { | |
481 | adapter->hw_status = MWIFIEX_HW_STATUS_READY; | |
482 | } | |
483 | ||
484 | return ret; | |
485 | } | |
486 | ||
487 | /* | |
488 | * This function deletes the BSS priority tables. | |
489 | * | |
490 | * The function traverses through all the allocated BSS priority nodes | |
491 | * in every BSS priority table and frees them. | |
492 | */ | |
493 | static void mwifiex_delete_bss_prio_tbl(struct mwifiex_private *priv) | |
494 | { | |
495 | int i; | |
496 | struct mwifiex_adapter *adapter = priv->adapter; | |
270e58e8 | 497 | struct mwifiex_bss_prio_node *bssprio_node, *tmp_node, **cur; |
5e6e3a92 BZ |
498 | struct list_head *head; |
499 | spinlock_t *lock; | |
500 | unsigned long flags; | |
501 | ||
502 | for (i = 0; i < adapter->priv_num; ++i) { | |
503 | head = &adapter->bss_prio_tbl[i].bss_prio_head; | |
504 | cur = &adapter->bss_prio_tbl[i].bss_prio_cur; | |
505 | lock = &adapter->bss_prio_tbl[i].bss_prio_lock; | |
506 | dev_dbg(adapter->dev, "info: delete BSS priority table," | |
507 | " index = %d, i = %d, head = %p, cur = %p\n", | |
508 | priv->bss_index, i, head, *cur); | |
509 | if (*cur) { | |
510 | spin_lock_irqsave(lock, flags); | |
511 | if (list_empty(head)) { | |
512 | spin_unlock_irqrestore(lock, flags); | |
513 | continue; | |
514 | } | |
515 | bssprio_node = list_first_entry(head, | |
516 | struct mwifiex_bss_prio_node, list); | |
517 | spin_unlock_irqrestore(lock, flags); | |
518 | ||
519 | list_for_each_entry_safe(bssprio_node, tmp_node, head, | |
520 | list) { | |
521 | if (bssprio_node->priv == priv) { | |
522 | dev_dbg(adapter->dev, "info: Delete " | |
523 | "node %p, next = %p\n", | |
524 | bssprio_node, tmp_node); | |
525 | spin_lock_irqsave(lock, flags); | |
526 | list_del(&bssprio_node->list); | |
527 | spin_unlock_irqrestore(lock, flags); | |
528 | kfree(bssprio_node); | |
529 | } | |
530 | } | |
531 | *cur = (struct mwifiex_bss_prio_node *)head; | |
532 | } | |
533 | } | |
534 | } | |
535 | ||
536 | /* | |
537 | * This function is used to shutdown the driver. | |
538 | * | |
539 | * The following operations are performed sequentially - | |
540 | * - Check if already shut down | |
541 | * - Make sure the main process has stopped | |
542 | * - Clean up the Tx and Rx queues | |
543 | * - Delete BSS priority tables | |
544 | * - Free the adapter | |
545 | * - Notify completion | |
546 | */ | |
547 | int | |
548 | mwifiex_shutdown_drv(struct mwifiex_adapter *adapter) | |
549 | { | |
550 | int ret = -EINPROGRESS; | |
270e58e8 YAP |
551 | struct mwifiex_private *priv; |
552 | s32 i; | |
5e6e3a92 BZ |
553 | unsigned long flags; |
554 | ||
555 | /* mwifiex already shutdown */ | |
556 | if (adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY) | |
557 | return 0; | |
558 | ||
559 | adapter->hw_status = MWIFIEX_HW_STATUS_CLOSING; | |
560 | /* wait for mwifiex_process to complete */ | |
561 | if (adapter->mwifiex_processing) { | |
562 | dev_warn(adapter->dev, "main process is still running\n"); | |
563 | return ret; | |
564 | } | |
565 | ||
566 | /* shut down mwifiex */ | |
567 | dev_dbg(adapter->dev, "info: shutdown mwifiex...\n"); | |
568 | ||
569 | /* Clean up Tx/Rx queues and delete BSS priority table */ | |
570 | for (i = 0; i < adapter->priv_num; i++) { | |
571 | if (adapter->priv[i]) { | |
572 | priv = adapter->priv[i]; | |
573 | ||
574 | mwifiex_clean_txrx(priv); | |
575 | mwifiex_delete_bss_prio_tbl(priv); | |
576 | } | |
577 | } | |
578 | ||
579 | spin_lock_irqsave(&adapter->mwifiex_lock, flags); | |
580 | ||
581 | /* Free adapter structure */ | |
582 | mwifiex_free_adapter(adapter); | |
583 | ||
584 | spin_unlock_irqrestore(&adapter->mwifiex_lock, flags); | |
585 | ||
586 | /* Notify completion */ | |
587 | ret = mwifiex_shutdown_fw_complete(adapter); | |
588 | ||
589 | return ret; | |
590 | } | |
591 | ||
592 | /* | |
593 | * This function downloads the firmware to the card. | |
594 | * | |
595 | * The actual download is preceded by two sanity checks - | |
596 | * - Check if firmware is already running | |
597 | * - Check if the interface is the winner to download the firmware | |
598 | * | |
599 | * ...and followed by another - | |
600 | * - Check if the firmware is downloaded successfully | |
601 | * | |
602 | * After download is successfully completed, the host interrupts are enabled. | |
603 | */ | |
604 | int mwifiex_dnld_fw(struct mwifiex_adapter *adapter, | |
605 | struct mwifiex_fw_image *pmfw) | |
606 | { | |
270e58e8 | 607 | int ret, winner; |
5e6e3a92 | 608 | u32 poll_num = 1; |
5e6e3a92 BZ |
609 | |
610 | /* Check if firmware is already running */ | |
611 | ret = adapter->if_ops.check_fw_status(adapter, poll_num, &winner); | |
612 | if (!ret) { | |
613 | dev_notice(adapter->dev, | |
614 | "WLAN FW already running! Skip FW download\n"); | |
615 | goto done; | |
616 | } | |
617 | poll_num = MAX_FIRMWARE_POLL_TRIES; | |
618 | ||
619 | /* Check if we are the winner for downloading FW */ | |
620 | if (!winner) { | |
621 | dev_notice(adapter->dev, | |
622 | "Other interface already running!" | |
623 | " Skip FW download\n"); | |
624 | poll_num = MAX_MULTI_INTERFACE_POLL_TRIES; | |
625 | goto poll_fw; | |
626 | } | |
627 | if (pmfw) { | |
628 | /* Download firmware with helper */ | |
629 | ret = adapter->if_ops.prog_fw(adapter, pmfw); | |
630 | if (ret) { | |
631 | dev_err(adapter->dev, "prog_fw failed ret=%#x\n", ret); | |
632 | return ret; | |
633 | } | |
634 | } | |
635 | ||
636 | poll_fw: | |
637 | /* Check if the firmware is downloaded successfully or not */ | |
638 | ret = adapter->if_ops.check_fw_status(adapter, poll_num, NULL); | |
639 | if (ret) { | |
640 | dev_err(adapter->dev, "FW failed to be active in time\n"); | |
641 | return -1; | |
642 | } | |
643 | done: | |
644 | /* re-enable host interrupt for mwifiex after fw dnld is successful */ | |
645 | adapter->if_ops.enable_int(adapter); | |
646 | return ret; | |
647 | } |