Commit | Line | Data |
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5e6e3a92 BZ |
1 | /* |
2 | * Marvell Wireless LAN device driver: utility functions | |
3 | * | |
65da33f5 | 4 | * Copyright (C) 2011-2014, Marvell International Ltd. |
5e6e3a92 BZ |
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 | ||
bb5097fe XH |
28 | static struct mwifiex_debug_data items[] = { |
29 | {"int_counter", item_size(int_counter), | |
30 | item_addr(int_counter), 1}, | |
31 | {"wmm_ac_vo", item_size(packets_out[WMM_AC_VO]), | |
32 | item_addr(packets_out[WMM_AC_VO]), 1}, | |
33 | {"wmm_ac_vi", item_size(packets_out[WMM_AC_VI]), | |
34 | item_addr(packets_out[WMM_AC_VI]), 1}, | |
35 | {"wmm_ac_be", item_size(packets_out[WMM_AC_BE]), | |
36 | item_addr(packets_out[WMM_AC_BE]), 1}, | |
37 | {"wmm_ac_bk", item_size(packets_out[WMM_AC_BK]), | |
38 | item_addr(packets_out[WMM_AC_BK]), 1}, | |
39 | {"tx_buf_size", item_size(tx_buf_size), | |
40 | item_addr(tx_buf_size), 1}, | |
41 | {"curr_tx_buf_size", item_size(curr_tx_buf_size), | |
42 | item_addr(curr_tx_buf_size), 1}, | |
43 | {"ps_mode", item_size(ps_mode), | |
44 | item_addr(ps_mode), 1}, | |
45 | {"ps_state", item_size(ps_state), | |
46 | item_addr(ps_state), 1}, | |
47 | {"is_deep_sleep", item_size(is_deep_sleep), | |
48 | item_addr(is_deep_sleep), 1}, | |
49 | {"wakeup_dev_req", item_size(pm_wakeup_card_req), | |
50 | item_addr(pm_wakeup_card_req), 1}, | |
51 | {"wakeup_tries", item_size(pm_wakeup_fw_try), | |
52 | item_addr(pm_wakeup_fw_try), 1}, | |
53 | {"hs_configured", item_size(is_hs_configured), | |
54 | item_addr(is_hs_configured), 1}, | |
55 | {"hs_activated", item_size(hs_activated), | |
56 | item_addr(hs_activated), 1}, | |
57 | {"num_tx_timeout", item_size(num_tx_timeout), | |
58 | item_addr(num_tx_timeout), 1}, | |
59 | {"is_cmd_timedout", item_size(is_cmd_timedout), | |
60 | item_addr(is_cmd_timedout), 1}, | |
61 | {"timeout_cmd_id", item_size(timeout_cmd_id), | |
62 | item_addr(timeout_cmd_id), 1}, | |
63 | {"timeout_cmd_act", item_size(timeout_cmd_act), | |
64 | item_addr(timeout_cmd_act), 1}, | |
65 | {"last_cmd_id", item_size(last_cmd_id), | |
66 | item_addr(last_cmd_id), DBG_CMD_NUM}, | |
67 | {"last_cmd_act", item_size(last_cmd_act), | |
68 | item_addr(last_cmd_act), DBG_CMD_NUM}, | |
69 | {"last_cmd_index", item_size(last_cmd_index), | |
70 | item_addr(last_cmd_index), 1}, | |
71 | {"last_cmd_resp_id", item_size(last_cmd_resp_id), | |
72 | item_addr(last_cmd_resp_id), DBG_CMD_NUM}, | |
73 | {"last_cmd_resp_index", item_size(last_cmd_resp_index), | |
74 | item_addr(last_cmd_resp_index), 1}, | |
75 | {"last_event", item_size(last_event), | |
76 | item_addr(last_event), DBG_CMD_NUM}, | |
77 | {"last_event_index", item_size(last_event_index), | |
78 | item_addr(last_event_index), 1}, | |
79 | {"num_cmd_h2c_fail", item_size(num_cmd_host_to_card_failure), | |
80 | item_addr(num_cmd_host_to_card_failure), 1}, | |
81 | {"num_cmd_sleep_cfm_fail", | |
82 | item_size(num_cmd_sleep_cfm_host_to_card_failure), | |
83 | item_addr(num_cmd_sleep_cfm_host_to_card_failure), 1}, | |
84 | {"num_tx_h2c_fail", item_size(num_tx_host_to_card_failure), | |
85 | item_addr(num_tx_host_to_card_failure), 1}, | |
86 | {"num_evt_deauth", item_size(num_event_deauth), | |
87 | item_addr(num_event_deauth), 1}, | |
88 | {"num_evt_disassoc", item_size(num_event_disassoc), | |
89 | item_addr(num_event_disassoc), 1}, | |
90 | {"num_evt_link_lost", item_size(num_event_link_lost), | |
91 | item_addr(num_event_link_lost), 1}, | |
92 | {"num_cmd_deauth", item_size(num_cmd_deauth), | |
93 | item_addr(num_cmd_deauth), 1}, | |
94 | {"num_cmd_assoc_ok", item_size(num_cmd_assoc_success), | |
95 | item_addr(num_cmd_assoc_success), 1}, | |
96 | {"num_cmd_assoc_fail", item_size(num_cmd_assoc_failure), | |
97 | item_addr(num_cmd_assoc_failure), 1}, | |
98 | {"cmd_sent", item_size(cmd_sent), | |
99 | item_addr(cmd_sent), 1}, | |
100 | {"data_sent", item_size(data_sent), | |
101 | item_addr(data_sent), 1}, | |
102 | {"cmd_resp_received", item_size(cmd_resp_received), | |
103 | item_addr(cmd_resp_received), 1}, | |
104 | {"event_received", item_size(event_received), | |
105 | item_addr(event_received), 1}, | |
106 | ||
107 | /* variables defined in struct mwifiex_adapter */ | |
108 | {"cmd_pending", adapter_item_size(cmd_pending), | |
109 | adapter_item_addr(cmd_pending), 1}, | |
110 | {"tx_pending", adapter_item_size(tx_pending), | |
111 | adapter_item_addr(tx_pending), 1}, | |
112 | {"rx_pending", adapter_item_size(rx_pending), | |
113 | adapter_item_addr(rx_pending), 1}, | |
114 | }; | |
115 | ||
116 | static int num_of_items = ARRAY_SIZE(items); | |
117 | ||
5e6e3a92 BZ |
118 | /* |
119 | * Firmware initialization complete callback handler. | |
120 | * | |
121 | * This function wakes up the function waiting on the init | |
122 | * wait queue for the firmware initialization to complete. | |
123 | */ | |
124 | int mwifiex_init_fw_complete(struct mwifiex_adapter *adapter) | |
125 | { | |
126 | ||
127 | adapter->init_wait_q_woken = true; | |
128 | wake_up_interruptible(&adapter->init_wait_q); | |
129 | return 0; | |
130 | } | |
131 | ||
132 | /* | |
133 | * Firmware shutdown complete callback handler. | |
134 | * | |
135 | * This function sets the hardware status to not ready and wakes up | |
136 | * the function waiting on the init wait queue for the firmware | |
137 | * shutdown to complete. | |
138 | */ | |
139 | int mwifiex_shutdown_fw_complete(struct mwifiex_adapter *adapter) | |
140 | { | |
141 | adapter->hw_status = MWIFIEX_HW_STATUS_NOT_READY; | |
142 | adapter->init_wait_q_woken = true; | |
143 | wake_up_interruptible(&adapter->init_wait_q); | |
144 | return 0; | |
145 | } | |
146 | ||
147 | /* | |
600f5d90 | 148 | * This function sends init/shutdown command |
5e6e3a92 | 149 | * to firmware. |
5e6e3a92 | 150 | */ |
600f5d90 AK |
151 | int mwifiex_init_shutdown_fw(struct mwifiex_private *priv, |
152 | u32 func_init_shutdown) | |
5e6e3a92 | 153 | { |
5e6e3a92 BZ |
154 | u16 cmd; |
155 | ||
156 | if (func_init_shutdown == MWIFIEX_FUNC_INIT) { | |
157 | cmd = HostCmd_CMD_FUNC_INIT; | |
158 | } else if (func_init_shutdown == MWIFIEX_FUNC_SHUTDOWN) { | |
159 | cmd = HostCmd_CMD_FUNC_SHUTDOWN; | |
160 | } else { | |
600f5d90 | 161 | dev_err(priv->adapter->dev, "unsupported parameter\n"); |
5e6e3a92 BZ |
162 | return -1; |
163 | } | |
164 | ||
fa0ecbb9 | 165 | return mwifiex_send_cmd(priv, cmd, HostCmd_ACT_GEN_SET, 0, NULL, true); |
5e6e3a92 | 166 | } |
600f5d90 | 167 | EXPORT_SYMBOL_GPL(mwifiex_init_shutdown_fw); |
5e6e3a92 BZ |
168 | |
169 | /* | |
170 | * IOCTL request handler to set/get debug information. | |
171 | * | |
172 | * This function collates/sets the information from/to different driver | |
173 | * structures. | |
174 | */ | |
175 | int mwifiex_get_debug_info(struct mwifiex_private *priv, | |
176 | struct mwifiex_debug_info *info) | |
177 | { | |
178 | struct mwifiex_adapter *adapter = priv->adapter; | |
179 | ||
180 | if (info) { | |
181 | memcpy(info->packets_out, | |
182 | priv->wmm.packets_out, | |
183 | sizeof(priv->wmm.packets_out)); | |
5e3175fb | 184 | info->curr_tx_buf_size = (u32) adapter->curr_tx_buf_size; |
5e6e3a92 | 185 | info->tx_buf_size = (u32) adapter->tx_buf_size; |
c65a30f3 YAP |
186 | info->rx_tbl_num = mwifiex_get_rx_reorder_tbl(priv, |
187 | info->rx_tbl); | |
188 | info->tx_tbl_num = mwifiex_get_tx_ba_stream_tbl(priv, | |
189 | info->tx_tbl); | |
72df6310 XH |
190 | info->tdls_peer_num = mwifiex_get_tdls_list(priv, |
191 | info->tdls_list); | |
5e6e3a92 BZ |
192 | info->ps_mode = adapter->ps_mode; |
193 | info->ps_state = adapter->ps_state; | |
194 | info->is_deep_sleep = adapter->is_deep_sleep; | |
195 | info->pm_wakeup_card_req = adapter->pm_wakeup_card_req; | |
196 | info->pm_wakeup_fw_try = adapter->pm_wakeup_fw_try; | |
197 | info->is_hs_configured = adapter->is_hs_configured; | |
198 | info->hs_activated = adapter->hs_activated; | |
0c9c4a09 | 199 | info->is_cmd_timedout = adapter->is_cmd_timedout; |
5e6e3a92 | 200 | info->num_cmd_host_to_card_failure |
c65a30f3 | 201 | = adapter->dbg.num_cmd_host_to_card_failure; |
5e6e3a92 BZ |
202 | info->num_cmd_sleep_cfm_host_to_card_failure |
203 | = adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure; | |
204 | info->num_tx_host_to_card_failure | |
c65a30f3 | 205 | = adapter->dbg.num_tx_host_to_card_failure; |
5e6e3a92 BZ |
206 | info->num_event_deauth = adapter->dbg.num_event_deauth; |
207 | info->num_event_disassoc = adapter->dbg.num_event_disassoc; | |
208 | info->num_event_link_lost = adapter->dbg.num_event_link_lost; | |
209 | info->num_cmd_deauth = adapter->dbg.num_cmd_deauth; | |
210 | info->num_cmd_assoc_success = | |
c65a30f3 | 211 | adapter->dbg.num_cmd_assoc_success; |
5e6e3a92 | 212 | info->num_cmd_assoc_failure = |
c65a30f3 | 213 | adapter->dbg.num_cmd_assoc_failure; |
5e6e3a92 | 214 | info->num_tx_timeout = adapter->dbg.num_tx_timeout; |
5e6e3a92 BZ |
215 | info->timeout_cmd_id = adapter->dbg.timeout_cmd_id; |
216 | info->timeout_cmd_act = adapter->dbg.timeout_cmd_act; | |
217 | memcpy(info->last_cmd_id, adapter->dbg.last_cmd_id, | |
218 | sizeof(adapter->dbg.last_cmd_id)); | |
219 | memcpy(info->last_cmd_act, adapter->dbg.last_cmd_act, | |
220 | sizeof(adapter->dbg.last_cmd_act)); | |
221 | info->last_cmd_index = adapter->dbg.last_cmd_index; | |
222 | memcpy(info->last_cmd_resp_id, adapter->dbg.last_cmd_resp_id, | |
223 | sizeof(adapter->dbg.last_cmd_resp_id)); | |
224 | info->last_cmd_resp_index = adapter->dbg.last_cmd_resp_index; | |
225 | memcpy(info->last_event, adapter->dbg.last_event, | |
226 | sizeof(adapter->dbg.last_event)); | |
227 | info->last_event_index = adapter->dbg.last_event_index; | |
228 | info->data_sent = adapter->data_sent; | |
229 | info->cmd_sent = adapter->cmd_sent; | |
230 | info->cmd_resp_received = adapter->cmd_resp_received; | |
231 | } | |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
bb5097fe XH |
236 | int mwifiex_debug_info_to_buffer(struct mwifiex_private *priv, char *buf, |
237 | struct mwifiex_debug_info *info) | |
238 | { | |
239 | char *p = buf; | |
240 | struct mwifiex_debug_data *d = &items[0]; | |
241 | size_t size, addr; | |
242 | long val; | |
243 | int i, j; | |
244 | ||
245 | if (!info) | |
246 | return 0; | |
247 | ||
248 | for (i = 0; i < num_of_items; i++) { | |
249 | p += sprintf(p, "%s=", d[i].name); | |
250 | ||
251 | size = d[i].size / d[i].num; | |
252 | ||
253 | if (i < (num_of_items - 3)) | |
254 | addr = d[i].addr + (size_t)info; | |
255 | else /* The last 3 items are struct mwifiex_adapter variables */ | |
256 | addr = d[i].addr + (size_t)priv->adapter; | |
257 | ||
258 | for (j = 0; j < d[i].num; j++) { | |
259 | switch (size) { | |
260 | case 1: | |
261 | val = *((u8 *)addr); | |
262 | break; | |
263 | case 2: | |
264 | val = *((u16 *)addr); | |
265 | break; | |
266 | case 4: | |
267 | val = *((u32 *)addr); | |
268 | break; | |
269 | case 8: | |
270 | val = *((long long *)addr); | |
271 | break; | |
272 | default: | |
273 | val = -1; | |
274 | break; | |
275 | } | |
276 | ||
277 | p += sprintf(p, "%#lx ", val); | |
278 | addr += size; | |
279 | } | |
280 | ||
281 | p += sprintf(p, "\n"); | |
282 | } | |
283 | ||
284 | if (info->tx_tbl_num) { | |
285 | p += sprintf(p, "Tx BA stream table:\n"); | |
286 | for (i = 0; i < info->tx_tbl_num; i++) | |
287 | p += sprintf(p, "tid = %d, ra = %pM\n", | |
288 | info->tx_tbl[i].tid, info->tx_tbl[i].ra); | |
289 | } | |
290 | ||
291 | if (info->rx_tbl_num) { | |
292 | p += sprintf(p, "Rx reorder table:\n"); | |
293 | for (i = 0; i < info->rx_tbl_num; i++) { | |
294 | p += sprintf(p, "tid = %d, ta = %pM, ", | |
295 | info->rx_tbl[i].tid, | |
296 | info->rx_tbl[i].ta); | |
297 | p += sprintf(p, "start_win = %d, ", | |
298 | info->rx_tbl[i].start_win); | |
299 | p += sprintf(p, "win_size = %d, buffer: ", | |
300 | info->rx_tbl[i].win_size); | |
301 | ||
302 | for (j = 0; j < info->rx_tbl[i].win_size; j++) | |
303 | p += sprintf(p, "%c ", | |
304 | info->rx_tbl[i].buffer[j] ? | |
305 | '1' : '0'); | |
306 | ||
307 | p += sprintf(p, "\n"); | |
308 | } | |
309 | } | |
310 | ||
311 | if (info->tdls_peer_num) { | |
312 | p += sprintf(p, "TDLS peer table:\n"); | |
313 | for (i = 0; i < info->tdls_peer_num; i++) { | |
314 | p += sprintf(p, "peer = %pM", | |
315 | info->tdls_list[i].peer_addr); | |
316 | p += sprintf(p, "\n"); | |
317 | } | |
318 | } | |
319 | ||
320 | return p - buf; | |
321 | } | |
322 | ||
72e5aa8d AP |
323 | static int |
324 | mwifiex_parse_mgmt_packet(struct mwifiex_private *priv, u8 *payload, u16 len, | |
325 | struct rxpd *rx_pd) | |
326 | { | |
327 | u16 stype; | |
328 | u8 category, action_code; | |
329 | struct ieee80211_hdr *ieee_hdr = (void *)payload; | |
330 | ||
51974611 | 331 | stype = (le16_to_cpu(ieee_hdr->frame_control) & IEEE80211_FCTL_STYPE); |
72e5aa8d AP |
332 | |
333 | switch (stype) { | |
334 | case IEEE80211_STYPE_ACTION: | |
335 | category = *(payload + sizeof(struct ieee80211_hdr)); | |
336 | action_code = *(payload + sizeof(struct ieee80211_hdr) + 1); | |
337 | if (category == WLAN_CATEGORY_PUBLIC && | |
338 | action_code == WLAN_PUB_ACTION_TDLS_DISCOVER_RES) { | |
339 | dev_dbg(priv->adapter->dev, | |
340 | "TDLS discovery response %pM nf=%d, snr=%d\n", | |
341 | ieee_hdr->addr2, rx_pd->nf, rx_pd->snr); | |
342 | mwifiex_auto_tdls_update_peer_signal(priv, | |
343 | ieee_hdr->addr2, | |
344 | rx_pd->snr, | |
345 | rx_pd->nf); | |
346 | } | |
347 | break; | |
348 | default: | |
349 | dev_dbg(priv->adapter->dev, | |
350 | "unknown mgmt frame subytpe %#x\n", stype); | |
351 | } | |
352 | ||
353 | return 0; | |
354 | } | |
2dbaf751 SP |
355 | /* |
356 | * This function processes the received management packet and send it | |
357 | * to the kernel. | |
358 | */ | |
359 | int | |
f3b369e4 | 360 | mwifiex_process_mgmt_packet(struct mwifiex_private *priv, |
2dbaf751 SP |
361 | struct sk_buff *skb) |
362 | { | |
363 | struct rxpd *rx_pd; | |
2dbaf751 | 364 | u16 pkt_len; |
72e5aa8d | 365 | struct ieee80211_hdr *ieee_hdr; |
2dbaf751 SP |
366 | |
367 | if (!skb) | |
368 | return -1; | |
369 | ||
7521ce6e AP |
370 | if (!priv->mgmt_frame_mask || |
371 | priv->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED) { | |
372 | dev_dbg(priv->adapter->dev, | |
373 | "do not receive mgmt frames on uninitialized intf"); | |
374 | return -1; | |
375 | } | |
376 | ||
2dbaf751 | 377 | rx_pd = (struct rxpd *)skb->data; |
2dbaf751 SP |
378 | |
379 | skb_pull(skb, le16_to_cpu(rx_pd->rx_pkt_offset)); | |
380 | skb_pull(skb, sizeof(pkt_len)); | |
381 | ||
382 | pkt_len = le16_to_cpu(rx_pd->rx_pkt_length); | |
383 | ||
72e5aa8d AP |
384 | ieee_hdr = (void *)skb->data; |
385 | if (ieee80211_is_mgmt(ieee_hdr->frame_control)) { | |
386 | mwifiex_parse_mgmt_packet(priv, (u8 *)ieee_hdr, | |
387 | pkt_len, rx_pd); | |
388 | } | |
2dbaf751 SP |
389 | /* Remove address4 */ |
390 | memmove(skb->data + sizeof(struct ieee80211_hdr_3addr), | |
391 | skb->data + sizeof(struct ieee80211_hdr), | |
392 | pkt_len - sizeof(struct ieee80211_hdr)); | |
393 | ||
394 | pkt_len -= ETH_ALEN + sizeof(pkt_len); | |
395 | rx_pd->rx_pkt_length = cpu_to_le16(pkt_len); | |
396 | ||
4facc34a | 397 | cfg80211_rx_mgmt(&priv->wdev, priv->roc_cfg.chan.center_freq, |
19504cf5 | 398 | CAL_RSSI(rx_pd->snr, rx_pd->nf), skb->data, pkt_len, |
970fdfa8 | 399 | 0); |
2dbaf751 SP |
400 | |
401 | return 0; | |
402 | } | |
403 | ||
5e6e3a92 BZ |
404 | /* |
405 | * This function processes the received packet before sending it to the | |
406 | * kernel. | |
407 | * | |
408 | * It extracts the SKB from the received buffer and sends it to kernel. | |
409 | * In case the received buffer does not contain the data in SKB format, | |
410 | * the function creates a blank SKB, fills it with the data from the | |
411 | * received buffer and then sends this new SKB to the kernel. | |
412 | */ | |
f3b369e4 | 413 | int mwifiex_recv_packet(struct mwifiex_private *priv, struct sk_buff *skb) |
5e6e3a92 | 414 | { |
5e6e3a92 BZ |
415 | if (!skb) |
416 | return -1; | |
417 | ||
f49c6e81 UR |
418 | priv->stats.rx_bytes += skb->len; |
419 | priv->stats.rx_packets++; | |
420 | ||
5e6e3a92 BZ |
421 | skb->dev = priv->netdev; |
422 | skb->protocol = eth_type_trans(skb, priv->netdev); | |
423 | skb->ip_summed = CHECKSUM_NONE; | |
4daffe35 | 424 | |
f553e1aa | 425 | /* This is required only in case of 11n and USB/PCIE as we alloc |
4daffe35 AK |
426 | * a buffer of 4K only if its 11N (to be able to receive 4K |
427 | * AMSDU packets). In case of SD we allocate buffers based | |
428 | * on the size of packet and hence this is not needed. | |
429 | * | |
430 | * Modifying the truesize here as our allocation for each | |
431 | * skb is 4K but we only receive 2K packets and this cause | |
432 | * the kernel to start dropping packets in case where | |
433 | * application has allocated buffer based on 2K size i.e. | |
434 | * if there a 64K packet received (in IP fragments and | |
435 | * application allocates 64K to receive this packet but | |
436 | * this packet would almost double up because we allocate | |
437 | * each 1.5K fragment in 4K and pass it up. As soon as the | |
438 | * 64K limit hits kernel will start to drop rest of the | |
439 | * fragments. Currently we fail the Filesndl-ht.scr script | |
440 | * for UDP, hence this fix | |
441 | */ | |
f553e1aa AP |
442 | if ((priv->adapter->iface_type == MWIFIEX_USB || |
443 | priv->adapter->iface_type == MWIFIEX_PCIE) && | |
4daffe35 AK |
444 | (skb->truesize > MWIFIEX_RX_DATA_BUF_SIZE)) |
445 | skb->truesize += (skb->len - MWIFIEX_RX_DATA_BUF_SIZE); | |
446 | ||
5e6e3a92 BZ |
447 | if (in_interrupt()) |
448 | netif_rx(skb); | |
449 | else | |
450 | netif_rx_ni(skb); | |
451 | ||
452 | return 0; | |
453 | } | |
454 | ||
5e6e3a92 BZ |
455 | /* |
456 | * IOCTL completion callback handler. | |
457 | * | |
458 | * This function is called when a pending IOCTL is completed. | |
459 | * | |
460 | * If work queue support is enabled, the function wakes up the | |
461 | * corresponding waiting function. Otherwise, it processes the | |
462 | * IOCTL response and frees the response buffer. | |
463 | */ | |
efaaa8b8 AK |
464 | int mwifiex_complete_cmd(struct mwifiex_adapter *adapter, |
465 | struct cmd_ctrl_node *cmd_node) | |
5e6e3a92 | 466 | { |
600f5d90 | 467 | dev_dbg(adapter->dev, "cmd completed: status=%d\n", |
c65a30f3 | 468 | adapter->cmd_wait_q.status); |
5e6e3a92 | 469 | |
efaaa8b8 | 470 | *(cmd_node->condition) = true; |
5e6e3a92 | 471 | |
600f5d90 AK |
472 | if (adapter->cmd_wait_q.status == -ETIMEDOUT) |
473 | dev_err(adapter->dev, "cmd timeout\n"); | |
474 | else | |
475 | wake_up_interruptible(&adapter->cmd_wait_q.wait); | |
5e6e3a92 BZ |
476 | |
477 | return 0; | |
478 | } | |
4bcf93d3 AP |
479 | |
480 | /* This function will return the pointer to station entry in station list | |
481 | * table which matches specified mac address. | |
482 | * This function should be called after acquiring RA list spinlock. | |
483 | * NULL is returned if station entry is not found in associated STA list. | |
484 | */ | |
485 | struct mwifiex_sta_node * | |
3b3a0162 | 486 | mwifiex_get_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
4bcf93d3 AP |
487 | { |
488 | struct mwifiex_sta_node *node; | |
489 | ||
490 | if (!mac) | |
491 | return NULL; | |
492 | ||
493 | list_for_each_entry(node, &priv->sta_list, list) { | |
494 | if (!memcmp(node->mac_addr, mac, ETH_ALEN)) | |
495 | return node; | |
496 | } | |
497 | ||
498 | return NULL; | |
499 | } | |
500 | ||
501 | /* This function will add a sta_node entry to associated station list | |
502 | * table with the given mac address. | |
503 | * If entry exist already, existing entry is returned. | |
504 | * If received mac address is NULL, NULL is returned. | |
505 | */ | |
506 | struct mwifiex_sta_node * | |
3b3a0162 | 507 | mwifiex_add_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
4bcf93d3 AP |
508 | { |
509 | struct mwifiex_sta_node *node; | |
510 | unsigned long flags; | |
511 | ||
512 | if (!mac) | |
513 | return NULL; | |
514 | ||
515 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); | |
516 | node = mwifiex_get_sta_entry(priv, mac); | |
517 | if (node) | |
518 | goto done; | |
519 | ||
520 | node = kzalloc(sizeof(*node), GFP_ATOMIC); | |
521 | if (!node) | |
522 | goto done; | |
523 | ||
524 | memcpy(node->mac_addr, mac, ETH_ALEN); | |
525 | list_add_tail(&node->list, &priv->sta_list); | |
526 | ||
527 | done: | |
528 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); | |
529 | return node; | |
530 | } | |
531 | ||
532 | /* This function will search for HT IE in association request IEs | |
533 | * and set station HT parameters accordingly. | |
534 | */ | |
535 | void | |
536 | mwifiex_set_sta_ht_cap(struct mwifiex_private *priv, const u8 *ies, | |
537 | int ies_len, struct mwifiex_sta_node *node) | |
538 | { | |
539 | const struct ieee80211_ht_cap *ht_cap; | |
540 | ||
541 | if (!ies) | |
542 | return; | |
543 | ||
544 | ht_cap = (void *)cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, ies_len); | |
545 | if (ht_cap) { | |
546 | node->is_11n_enabled = 1; | |
547 | node->max_amsdu = le16_to_cpu(ht_cap->cap_info) & | |
548 | IEEE80211_HT_CAP_MAX_AMSDU ? | |
549 | MWIFIEX_TX_DATA_BUF_SIZE_8K : | |
550 | MWIFIEX_TX_DATA_BUF_SIZE_4K; | |
551 | } else { | |
552 | node->is_11n_enabled = 0; | |
553 | } | |
554 | ||
555 | return; | |
556 | } | |
557 | ||
558 | /* This function will delete a station entry from station list */ | |
3b3a0162 | 559 | void mwifiex_del_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
4bcf93d3 AP |
560 | { |
561 | struct mwifiex_sta_node *node; | |
562 | unsigned long flags; | |
563 | ||
564 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); | |
565 | ||
566 | node = mwifiex_get_sta_entry(priv, mac); | |
567 | if (node) { | |
568 | list_del(&node->list); | |
569 | kfree(node); | |
570 | } | |
571 | ||
572 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); | |
573 | return; | |
574 | } | |
575 | ||
576 | /* This function will delete all stations from associated station list. */ | |
577 | void mwifiex_del_all_sta_list(struct mwifiex_private *priv) | |
578 | { | |
579 | struct mwifiex_sta_node *node, *tmp; | |
580 | unsigned long flags; | |
581 | ||
582 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); | |
583 | ||
584 | list_for_each_entry_safe(node, tmp, &priv->sta_list, list) { | |
585 | list_del(&node->list); | |
586 | kfree(node); | |
587 | } | |
588 | ||
589 | INIT_LIST_HEAD(&priv->sta_list); | |
590 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); | |
591 | return; | |
592 | } | |
cbf6e055 XH |
593 | |
594 | /* This function adds histogram data to histogram array*/ | |
595 | void mwifiex_hist_data_add(struct mwifiex_private *priv, | |
596 | u8 rx_rate, s8 snr, s8 nflr) | |
597 | { | |
598 | struct mwifiex_histogram_data *phist_data = priv->hist_data; | |
599 | ||
600 | if (atomic_read(&phist_data->num_samples) > MWIFIEX_HIST_MAX_SAMPLES) | |
601 | mwifiex_hist_data_reset(priv); | |
602 | mwifiex_hist_data_set(priv, rx_rate, snr, nflr); | |
603 | } | |
604 | ||
605 | /* function to add histogram record */ | |
606 | void mwifiex_hist_data_set(struct mwifiex_private *priv, u8 rx_rate, s8 snr, | |
607 | s8 nflr) | |
608 | { | |
609 | struct mwifiex_histogram_data *phist_data = priv->hist_data; | |
610 | ||
611 | atomic_inc(&phist_data->num_samples); | |
612 | atomic_inc(&phist_data->rx_rate[rx_rate]); | |
613 | atomic_inc(&phist_data->snr[snr]); | |
614 | atomic_inc(&phist_data->noise_flr[128 + nflr]); | |
615 | atomic_inc(&phist_data->sig_str[nflr - snr]); | |
616 | } | |
617 | ||
618 | /* function to reset histogram data during init/reset */ | |
619 | void mwifiex_hist_data_reset(struct mwifiex_private *priv) | |
620 | { | |
621 | int ix; | |
622 | struct mwifiex_histogram_data *phist_data = priv->hist_data; | |
623 | ||
624 | atomic_set(&phist_data->num_samples, 0); | |
625 | for (ix = 0; ix < MWIFIEX_MAX_AC_RX_RATES; ix++) | |
626 | atomic_set(&phist_data->rx_rate[ix], 0); | |
627 | for (ix = 0; ix < MWIFIEX_MAX_SNR; ix++) | |
628 | atomic_set(&phist_data->snr[ix], 0); | |
629 | for (ix = 0; ix < MWIFIEX_MAX_NOISE_FLR; ix++) | |
630 | atomic_set(&phist_data->noise_flr[ix], 0); | |
631 | for (ix = 0; ix < MWIFIEX_MAX_SIG_STRENGTH; ix++) | |
632 | atomic_set(&phist_data->sig_str[ix], 0); | |
633 | } | |
31def91b | 634 | |
62159944 | 635 | void *mwifiex_alloc_dma_align_buf(int rx_len, gfp_t flags) |
31def91b AP |
636 | { |
637 | struct sk_buff *skb; | |
638 | int buf_len, pad; | |
639 | ||
640 | buf_len = rx_len + MWIFIEX_RX_HEADROOM + MWIFIEX_DMA_ALIGN_SZ; | |
641 | ||
642 | skb = __dev_alloc_skb(buf_len, flags); | |
643 | ||
644 | if (!skb) | |
645 | return NULL; | |
646 | ||
647 | skb_reserve(skb, MWIFIEX_RX_HEADROOM); | |
648 | ||
649 | pad = MWIFIEX_ALIGN_ADDR(skb->data, MWIFIEX_DMA_ALIGN_SZ) - | |
650 | (long)skb->data; | |
651 | ||
652 | skb_reserve(skb, pad); | |
653 | ||
654 | return skb; | |
655 | } | |
62159944 | 656 | EXPORT_SYMBOL_GPL(mwifiex_alloc_dma_align_buf); |