1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2009-2012  Realtek Corporation.*/
3 
4 #include "wifi.h"
5 #include "core.h"
6 #include "cam.h"
7 #include "base.h"
8 #include "ps.h"
9 #include "pwrseqcmd.h"
10 
11 #include "btcoexist/rtl_btc.h"
12 #include <linux/firmware.h>
13 #include <linux/export.h>
14 #include <net/cfg80211.h>
15 
16 u8 channel5g[CHANNEL_MAX_NUMBER_5G] = {
17 	36, 38, 40, 42, 44, 46, 48,		/* Band 1 */
18 	52, 54, 56, 58, 60, 62, 64,		/* Band 2 */
19 	100, 102, 104, 106, 108, 110, 112,	/* Band 3 */
20 	116, 118, 120, 122, 124, 126, 128,	/* Band 3 */
21 	132, 134, 136, 138, 140, 142, 144,	/* Band 3 */
22 	149, 151, 153, 155, 157, 159, 161,	/* Band 4 */
23 	165, 167, 169, 171, 173, 175, 177	/* Band 4 */
24 };
25 EXPORT_SYMBOL(channel5g);
26 
27 u8 channel5g_80m[CHANNEL_MAX_NUMBER_5G_80M] = {
28 	42, 58, 106, 122, 138, 155, 171
29 };
30 EXPORT_SYMBOL(channel5g_80m);
31 
rtl_addr_delay(u32 addr)32 void rtl_addr_delay(u32 addr)
33 {
34 	if (addr == 0xfe)
35 		mdelay(50);
36 	else if (addr == 0xfd)
37 		msleep(5);
38 	else if (addr == 0xfc)
39 		msleep(1);
40 	else if (addr == 0xfb)
41 		usleep_range(50, 100);
42 	else if (addr == 0xfa)
43 		usleep_range(5, 10);
44 	else if (addr == 0xf9)
45 		usleep_range(1, 2);
46 }
47 EXPORT_SYMBOL(rtl_addr_delay);
48 
rtl_rfreg_delay(struct ieee80211_hw * hw,enum radio_path rfpath,u32 addr,u32 mask,u32 data)49 void rtl_rfreg_delay(struct ieee80211_hw *hw, enum radio_path rfpath, u32 addr,
50 		     u32 mask, u32 data)
51 {
52 	if (addr >= 0xf9 && addr <= 0xfe) {
53 		rtl_addr_delay(addr);
54 	} else {
55 		rtl_set_rfreg(hw, rfpath, addr, mask, data);
56 		udelay(1);
57 	}
58 }
59 EXPORT_SYMBOL(rtl_rfreg_delay);
60 
rtl_bb_delay(struct ieee80211_hw * hw,u32 addr,u32 data)61 void rtl_bb_delay(struct ieee80211_hw *hw, u32 addr, u32 data)
62 {
63 	if (addr >= 0xf9 && addr <= 0xfe) {
64 		rtl_addr_delay(addr);
65 	} else {
66 		rtl_set_bbreg(hw, addr, MASKDWORD, data);
67 		udelay(1);
68 	}
69 }
70 EXPORT_SYMBOL(rtl_bb_delay);
71 
rtl_fw_do_work(const struct firmware * firmware,void * context,bool is_wow)72 static void rtl_fw_do_work(const struct firmware *firmware, void *context,
73 			   bool is_wow)
74 {
75 	struct ieee80211_hw *hw = context;
76 	struct rtl_priv *rtlpriv = rtl_priv(hw);
77 	int err;
78 
79 	rtl_dbg(rtlpriv, COMP_ERR, DBG_LOUD,
80 		"Firmware callback routine entered!\n");
81 	if (!firmware) {
82 		if (rtlpriv->cfg->alt_fw_name) {
83 			err = request_firmware(&firmware,
84 					       rtlpriv->cfg->alt_fw_name,
85 					       rtlpriv->io.dev);
86 			pr_info("Loading alternative firmware %s\n",
87 				rtlpriv->cfg->alt_fw_name);
88 			if (!err)
89 				goto found_alt;
90 		}
91 		pr_err("Selected firmware is not available\n");
92 		rtlpriv->max_fw_size = 0;
93 		goto exit;
94 	}
95 found_alt:
96 	if (firmware->size > rtlpriv->max_fw_size) {
97 		pr_err("Firmware is too big!\n");
98 		release_firmware(firmware);
99 		goto exit;
100 	}
101 	if (!is_wow) {
102 		memcpy(rtlpriv->rtlhal.pfirmware, firmware->data,
103 		       firmware->size);
104 		rtlpriv->rtlhal.fwsize = firmware->size;
105 	} else {
106 		memcpy(rtlpriv->rtlhal.wowlan_firmware, firmware->data,
107 		       firmware->size);
108 		rtlpriv->rtlhal.wowlan_fwsize = firmware->size;
109 	}
110 	release_firmware(firmware);
111 
112 exit:
113 	complete(&rtlpriv->firmware_loading_complete);
114 }
115 
rtl_fw_cb(const struct firmware * firmware,void * context)116 void rtl_fw_cb(const struct firmware *firmware, void *context)
117 {
118 	rtl_fw_do_work(firmware, context, false);
119 }
120 EXPORT_SYMBOL(rtl_fw_cb);
121 
rtl_wowlan_fw_cb(const struct firmware * firmware,void * context)122 void rtl_wowlan_fw_cb(const struct firmware *firmware, void *context)
123 {
124 	rtl_fw_do_work(firmware, context, true);
125 }
126 EXPORT_SYMBOL(rtl_wowlan_fw_cb);
127 
128 /*mutex for start & stop is must here. */
rtl_op_start(struct ieee80211_hw * hw)129 static int rtl_op_start(struct ieee80211_hw *hw)
130 {
131 	int err = 0;
132 	struct rtl_priv *rtlpriv = rtl_priv(hw);
133 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
134 
135 	if (!is_hal_stop(rtlhal))
136 		return 0;
137 	if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
138 		return 0;
139 	mutex_lock(&rtlpriv->locks.conf_mutex);
140 	err = rtlpriv->intf_ops->adapter_start(hw);
141 	if (!err)
142 		rtl_watch_dog_timer_callback(&rtlpriv->works.watchdog_timer);
143 	mutex_unlock(&rtlpriv->locks.conf_mutex);
144 	return err;
145 }
146 
rtl_op_stop(struct ieee80211_hw * hw)147 static void rtl_op_stop(struct ieee80211_hw *hw)
148 {
149 	struct rtl_priv *rtlpriv = rtl_priv(hw);
150 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
151 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
152 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
153 	bool support_remote_wakeup = false;
154 
155 	if (is_hal_stop(rtlhal))
156 		return;
157 
158 	rtlpriv->cfg->ops->get_hw_reg(hw, HAL_DEF_WOWLAN,
159 				      (u8 *)(&support_remote_wakeup));
160 	/* here is must, because adhoc do stop and start,
161 	 * but stop with RFOFF may cause something wrong,
162 	 * like adhoc TP
163 	 */
164 	if (unlikely(ppsc->rfpwr_state == ERFOFF))
165 		rtl_ips_nic_on(hw);
166 
167 	mutex_lock(&rtlpriv->locks.conf_mutex);
168 	/* if wowlan supported, DON'T clear connected info */
169 	if (!(support_remote_wakeup &&
170 	      rtlhal->enter_pnp_sleep)) {
171 		mac->link_state = MAC80211_NOLINK;
172 		eth_zero_addr(mac->bssid);
173 		mac->vendor = PEER_UNKNOWN;
174 
175 		/* reset sec info */
176 		rtl_cam_reset_sec_info(hw);
177 
178 		rtl_deinit_deferred_work(hw, false);
179 	}
180 	rtlpriv->intf_ops->adapter_stop(hw);
181 
182 	mutex_unlock(&rtlpriv->locks.conf_mutex);
183 }
184 
rtl_op_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)185 static void rtl_op_tx(struct ieee80211_hw *hw,
186 		      struct ieee80211_tx_control *control,
187 		      struct sk_buff *skb)
188 {
189 	struct rtl_priv *rtlpriv = rtl_priv(hw);
190 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
191 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
192 	struct rtl_tcb_desc tcb_desc;
193 
194 	memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
195 
196 	if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
197 		goto err_free;
198 
199 	if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
200 		goto err_free;
201 
202 	if (!rtlpriv->intf_ops->waitq_insert(hw, control->sta, skb))
203 		rtlpriv->intf_ops->adapter_tx(hw, control->sta, skb, &tcb_desc);
204 	return;
205 
206 err_free:
207 	dev_kfree_skb_any(skb);
208 }
209 
rtl_op_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)210 static int rtl_op_add_interface(struct ieee80211_hw *hw,
211 		struct ieee80211_vif *vif)
212 {
213 	struct rtl_priv *rtlpriv = rtl_priv(hw);
214 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
215 	int err = 0;
216 	u8 retry_limit = 0x30;
217 
218 	if (mac->vif) {
219 		rtl_dbg(rtlpriv, COMP_ERR, DBG_WARNING,
220 			"vif has been set!! mac->vif = 0x%p\n", mac->vif);
221 		return -EOPNOTSUPP;
222 	}
223 
224 	vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
225 
226 	rtl_ips_nic_on(hw);
227 
228 	mutex_lock(&rtlpriv->locks.conf_mutex);
229 	switch (ieee80211_vif_type_p2p(vif)) {
230 	case NL80211_IFTYPE_P2P_CLIENT:
231 		mac->p2p = P2P_ROLE_CLIENT;
232 		fallthrough;
233 	case NL80211_IFTYPE_STATION:
234 		if (mac->beacon_enabled == 1) {
235 			rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
236 				"NL80211_IFTYPE_STATION\n");
237 			mac->beacon_enabled = 0;
238 			rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
239 					rtlpriv->cfg->maps[RTL_IBSS_INT_MASKS]);
240 		}
241 		break;
242 	case NL80211_IFTYPE_ADHOC:
243 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
244 			"NL80211_IFTYPE_ADHOC\n");
245 
246 		mac->link_state = MAC80211_LINKED;
247 		rtlpriv->cfg->ops->set_bcn_reg(hw);
248 		if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
249 			mac->basic_rates = 0xfff;
250 		else
251 			mac->basic_rates = 0xff0;
252 		rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
253 				(u8 *)(&mac->basic_rates));
254 
255 		retry_limit = 0x07;
256 		break;
257 	case NL80211_IFTYPE_P2P_GO:
258 		mac->p2p = P2P_ROLE_GO;
259 		fallthrough;
260 	case NL80211_IFTYPE_AP:
261 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
262 			"NL80211_IFTYPE_AP\n");
263 
264 		mac->link_state = MAC80211_LINKED;
265 		rtlpriv->cfg->ops->set_bcn_reg(hw);
266 		if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
267 			mac->basic_rates = 0xfff;
268 		else
269 			mac->basic_rates = 0xff0;
270 		rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
271 					      (u8 *)(&mac->basic_rates));
272 
273 		retry_limit = 0x07;
274 		break;
275 	case NL80211_IFTYPE_MESH_POINT:
276 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
277 			"NL80211_IFTYPE_MESH_POINT\n");
278 
279 		mac->link_state = MAC80211_LINKED;
280 		rtlpriv->cfg->ops->set_bcn_reg(hw);
281 		if (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G)
282 			mac->basic_rates = 0xfff;
283 		else
284 			mac->basic_rates = 0xff0;
285 		rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
286 				(u8 *)(&mac->basic_rates));
287 
288 		retry_limit = 0x07;
289 		break;
290 	default:
291 		pr_err("operation mode %d is not supported!\n",
292 		       vif->type);
293 		err = -EOPNOTSUPP;
294 		goto out;
295 	}
296 
297 	if (mac->p2p) {
298 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
299 			"p2p role %x\n", vif->type);
300 		mac->basic_rates = 0xff0;/*disable cck rate for p2p*/
301 		rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
302 				(u8 *)(&mac->basic_rates));
303 	}
304 	mac->vif = vif;
305 	mac->opmode = vif->type;
306 	rtlpriv->cfg->ops->set_network_type(hw, vif->type);
307 	memcpy(mac->mac_addr, vif->addr, ETH_ALEN);
308 	rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ETHER_ADDR, mac->mac_addr);
309 
310 	mac->retry_long = retry_limit;
311 	mac->retry_short = retry_limit;
312 	rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
313 			(u8 *)(&retry_limit));
314 out:
315 	mutex_unlock(&rtlpriv->locks.conf_mutex);
316 	return err;
317 }
318 
rtl_op_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)319 static void rtl_op_remove_interface(struct ieee80211_hw *hw,
320 		struct ieee80211_vif *vif)
321 {
322 	struct rtl_priv *rtlpriv = rtl_priv(hw);
323 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
324 
325 	mutex_lock(&rtlpriv->locks.conf_mutex);
326 
327 	/* Free beacon resources */
328 	if (vif->type == NL80211_IFTYPE_AP ||
329 	    vif->type == NL80211_IFTYPE_ADHOC ||
330 	    vif->type == NL80211_IFTYPE_MESH_POINT) {
331 		if (mac->beacon_enabled == 1) {
332 			mac->beacon_enabled = 0;
333 			rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
334 					rtlpriv->cfg->maps[RTL_IBSS_INT_MASKS]);
335 		}
336 	}
337 
338 	/*
339 	 *Note: We assume NL80211_IFTYPE_UNSPECIFIED as
340 	 *NO LINK for our hardware.
341 	 */
342 	mac->p2p = 0;
343 	mac->vif = NULL;
344 	mac->link_state = MAC80211_NOLINK;
345 	eth_zero_addr(mac->bssid);
346 	mac->vendor = PEER_UNKNOWN;
347 	mac->opmode = NL80211_IFTYPE_UNSPECIFIED;
348 	rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
349 
350 	mutex_unlock(&rtlpriv->locks.conf_mutex);
351 }
352 
rtl_op_change_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum nl80211_iftype new_type,bool p2p)353 static int rtl_op_change_interface(struct ieee80211_hw *hw,
354 				   struct ieee80211_vif *vif,
355 				   enum nl80211_iftype new_type, bool p2p)
356 {
357 	struct rtl_priv *rtlpriv = rtl_priv(hw);
358 	int ret;
359 
360 	rtl_op_remove_interface(hw, vif);
361 
362 	vif->type = new_type;
363 	vif->p2p = p2p;
364 	ret = rtl_op_add_interface(hw, vif);
365 	rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
366 		"p2p  %x\n", p2p);
367 	return ret;
368 }
369 
370 #ifdef CONFIG_PM
crc16_ccitt(u8 data,u16 crc)371 static u16 crc16_ccitt(u8 data, u16 crc)
372 {
373 	u8 shift_in, data_bit, crc_bit11, crc_bit4, crc_bit15;
374 	u8 i;
375 	u16 result;
376 
377 	for (i = 0; i < 8; i++) {
378 		crc_bit15 = ((crc & BIT(15)) ? 1 : 0);
379 		data_bit  = (data & (BIT(0) << i) ? 1 : 0);
380 		shift_in = crc_bit15 ^ data_bit;
381 
382 		result = crc << 1;
383 		if (shift_in == 0)
384 			result &= (~BIT(0));
385 		else
386 			result |= BIT(0);
387 
388 		crc_bit11 = ((crc & BIT(11)) ? 1 : 0) ^ shift_in;
389 		if (crc_bit11 == 0)
390 			result &= (~BIT(12));
391 		else
392 			result |= BIT(12);
393 
394 		crc_bit4 = ((crc & BIT(4)) ? 1 : 0) ^ shift_in;
395 		if (crc_bit4 == 0)
396 			result &= (~BIT(5));
397 		else
398 			result |= BIT(5);
399 
400 		crc = result;
401 	}
402 
403 	return crc;
404 }
405 
_calculate_wol_pattern_crc(u8 * pattern,u16 len)406 static u16 _calculate_wol_pattern_crc(u8 *pattern, u16 len)
407 {
408 	u16 crc = 0xffff;
409 	u32 i;
410 
411 	for (i = 0; i < len; i++)
412 		crc = crc16_ccitt(pattern[i], crc);
413 
414 	crc = ~crc;
415 
416 	return crc;
417 }
418 
_rtl_add_wowlan_patterns(struct ieee80211_hw * hw,struct cfg80211_wowlan * wow)419 static void _rtl_add_wowlan_patterns(struct ieee80211_hw *hw,
420 				     struct cfg80211_wowlan *wow)
421 {
422 	struct rtl_priv *rtlpriv = rtl_priv(hw);
423 	struct rtl_mac *mac = &rtlpriv->mac80211;
424 	struct cfg80211_pkt_pattern *patterns = wow->patterns;
425 	struct rtl_wow_pattern rtl_pattern;
426 	const u8 *pattern_os, *mask_os;
427 	u8 mask[MAX_WOL_BIT_MASK_SIZE] = {0};
428 	u8 content[MAX_WOL_PATTERN_SIZE] = {0};
429 	u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
430 	u8 multicast_addr1[2] = {0x33, 0x33};
431 	u8 multicast_addr2[3] = {0x01, 0x00, 0x5e};
432 	u8 i, mask_len;
433 	u16 j, len;
434 
435 	for (i = 0; i < wow->n_patterns; i++) {
436 		memset(&rtl_pattern, 0, sizeof(struct rtl_wow_pattern));
437 		memset(mask, 0, MAX_WOL_BIT_MASK_SIZE);
438 		if (patterns[i].pattern_len < 0 ||
439 		    patterns[i].pattern_len > MAX_WOL_PATTERN_SIZE) {
440 			rtl_dbg(rtlpriv, COMP_POWER, DBG_WARNING,
441 				"Pattern[%d] is too long\n", i);
442 			continue;
443 		}
444 		pattern_os = patterns[i].pattern;
445 		mask_len = DIV_ROUND_UP(patterns[i].pattern_len, 8);
446 		mask_os = patterns[i].mask;
447 		RT_PRINT_DATA(rtlpriv, COMP_POWER, DBG_TRACE,
448 			      "pattern content\n", pattern_os,
449 			       patterns[i].pattern_len);
450 		RT_PRINT_DATA(rtlpriv, COMP_POWER, DBG_TRACE,
451 			      "mask content\n", mask_os, mask_len);
452 		/* 1. unicast? multicast? or broadcast? */
453 		if (memcmp(pattern_os, broadcast_addr, 6) == 0)
454 			rtl_pattern.type = BROADCAST_PATTERN;
455 		else if (memcmp(pattern_os, multicast_addr1, 2) == 0 ||
456 			 memcmp(pattern_os, multicast_addr2, 3) == 0)
457 			rtl_pattern.type = MULTICAST_PATTERN;
458 		else if  (memcmp(pattern_os, mac->mac_addr, 6) == 0)
459 			rtl_pattern.type = UNICAST_PATTERN;
460 		else
461 			rtl_pattern.type = UNKNOWN_TYPE;
462 
463 		/* 2. translate mask_from_os to mask_for_hw */
464 
465 /******************************************************************************
466  * pattern from OS uses 'ethenet frame', like this:
467 
468 		   |    6   |    6   |   2  |     20    |  Variable  |	4  |
469 		   |--------+--------+------+-----------+------------+-----|
470 		   |    802.3 Mac Header    | IP Header | TCP Packet | FCS |
471 		   |   DA   |   SA   | Type |
472 
473  * BUT, packet catched by our HW is in '802.11 frame', begin from LLC,
474 
475 	|     24 or 30      |    6   |   2  |     20    |  Variable  |  4  |
476 	|-------------------+--------+------+-----------+------------+-----|
477 	| 802.11 MAC Header |       LLC     | IP Header | TCP Packet | FCS |
478 			    | Others | Tpye |
479 
480  * Therefore, we need translate mask_from_OS to mask_to_hw.
481  * We should left-shift mask by 6 bits, then set the new bit[0~5] = 0,
482  * because new mask[0~5] means 'SA', but our HW packet begins from LLC,
483  * bit[0~5] corresponds to first 6 Bytes in LLC, they just don't match.
484  ******************************************************************************/
485 
486 		/* Shift 6 bits */
487 		for (j = 0; j < mask_len - 1; j++) {
488 			mask[j] = mask_os[j] >> 6;
489 			mask[j] |= (mask_os[j + 1] & 0x3F) << 2;
490 		}
491 		mask[j] = (mask_os[j] >> 6) & 0x3F;
492 		/* Set bit 0-5 to zero */
493 		mask[0] &= 0xC0;
494 
495 		RT_PRINT_DATA(rtlpriv, COMP_POWER, DBG_TRACE,
496 			      "mask to hw\n", mask, mask_len);
497 		for (j = 0; j < (MAX_WOL_BIT_MASK_SIZE + 1) / 4; j++) {
498 			rtl_pattern.mask[j] = mask[j * 4];
499 			rtl_pattern.mask[j] |= (mask[j * 4 + 1] << 8);
500 			rtl_pattern.mask[j] |= (mask[j * 4 + 2] << 16);
501 			rtl_pattern.mask[j] |= (mask[j * 4 + 3] << 24);
502 		}
503 
504 		/* To get the wake up pattern from the mask.
505 		 * We do not count first 12 bits which means
506 		 * DA[6] and SA[6] in the pattern to match HW design.
507 		 */
508 		len = 0;
509 		for (j = 12; j < patterns[i].pattern_len; j++) {
510 			if ((mask_os[j / 8] >> (j % 8)) & 0x01) {
511 				content[len] = pattern_os[j];
512 				len++;
513 			}
514 		}
515 
516 		RT_PRINT_DATA(rtlpriv, COMP_POWER, DBG_TRACE,
517 			      "pattern to hw\n", content, len);
518 		/* 3. calculate crc */
519 		rtl_pattern.crc = _calculate_wol_pattern_crc(content, len);
520 		rtl_dbg(rtlpriv, COMP_POWER, DBG_TRACE,
521 			"CRC_Remainder = 0x%x\n", rtl_pattern.crc);
522 
523 		/* 4. write crc & mask_for_hw to hw */
524 		rtlpriv->cfg->ops->add_wowlan_pattern(hw, &rtl_pattern, i);
525 	}
526 	rtl_write_byte(rtlpriv, 0x698, wow->n_patterns);
527 }
528 
rtl_op_suspend(struct ieee80211_hw * hw,struct cfg80211_wowlan * wow)529 static int rtl_op_suspend(struct ieee80211_hw *hw,
530 			  struct cfg80211_wowlan *wow)
531 {
532 	struct rtl_priv *rtlpriv = rtl_priv(hw);
533 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
534 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
535 
536 	rtl_dbg(rtlpriv, COMP_POWER, DBG_DMESG, "\n");
537 	if (WARN_ON(!wow))
538 		return -EINVAL;
539 
540 	/* to resolve s4 can not wake up*/
541 	rtlhal->last_suspend_sec = ktime_get_real_seconds();
542 
543 	if ((ppsc->wo_wlan_mode & WAKE_ON_PATTERN_MATCH) && wow->n_patterns)
544 		_rtl_add_wowlan_patterns(hw, wow);
545 
546 	rtlhal->driver_is_goingto_unload = true;
547 	rtlhal->enter_pnp_sleep = true;
548 
549 	rtl_lps_leave(hw, true);
550 	rtl_op_stop(hw);
551 	device_set_wakeup_enable(wiphy_dev(hw->wiphy), true);
552 	return 0;
553 }
554 
rtl_op_resume(struct ieee80211_hw * hw)555 static int rtl_op_resume(struct ieee80211_hw *hw)
556 {
557 	struct rtl_priv *rtlpriv = rtl_priv(hw);
558 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
559 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
560 	time64_t now;
561 
562 	rtl_dbg(rtlpriv, COMP_POWER, DBG_DMESG, "\n");
563 	rtlhal->driver_is_goingto_unload = false;
564 	rtlhal->enter_pnp_sleep = false;
565 	rtlhal->wake_from_pnp_sleep = true;
566 
567 	/* to resolve s4 can not wake up*/
568 	now = ktime_get_real_seconds();
569 	if (now - rtlhal->last_suspend_sec < 5)
570 		return -1;
571 
572 	rtl_op_start(hw);
573 	device_set_wakeup_enable(wiphy_dev(hw->wiphy), false);
574 	ieee80211_resume_disconnect(mac->vif);
575 	rtlhal->wake_from_pnp_sleep = false;
576 	return 0;
577 }
578 #endif
579 
rtl_op_config(struct ieee80211_hw * hw,u32 changed)580 static int rtl_op_config(struct ieee80211_hw *hw, u32 changed)
581 {
582 	struct rtl_priv *rtlpriv = rtl_priv(hw);
583 	struct rtl_phy *rtlphy = &(rtlpriv->phy);
584 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
585 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
586 	struct ieee80211_conf *conf = &hw->conf;
587 
588 	if (mac->skip_scan)
589 		return 1;
590 
591 	mutex_lock(&rtlpriv->locks.conf_mutex);
592 	if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {	/* BIT(2)*/
593 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
594 			"IEEE80211_CONF_CHANGE_LISTEN_INTERVAL\n");
595 	}
596 
597 	/*For IPS */
598 	if (changed & IEEE80211_CONF_CHANGE_IDLE) {
599 		if (hw->conf.flags & IEEE80211_CONF_IDLE)
600 			rtl_ips_nic_off(hw);
601 		else
602 			rtl_ips_nic_on(hw);
603 	} else {
604 		/*
605 		 *although rfoff may not cause by ips, but we will
606 		 *check the reason in set_rf_power_state function
607 		 */
608 		if (unlikely(ppsc->rfpwr_state == ERFOFF))
609 			rtl_ips_nic_on(hw);
610 	}
611 
612 	/*For LPS */
613 	if ((changed & IEEE80211_CONF_CHANGE_PS) &&
614 	    rtlpriv->psc.swctrl_lps && !rtlpriv->psc.fwctrl_lps) {
615 		cancel_delayed_work(&rtlpriv->works.ps_work);
616 		cancel_delayed_work(&rtlpriv->works.ps_rfon_wq);
617 		if (conf->flags & IEEE80211_CONF_PS) {
618 			rtlpriv->psc.sw_ps_enabled = true;
619 			/* sleep here is must, or we may recv the beacon and
620 			 * cause mac80211 into wrong ps state, this will cause
621 			 * power save nullfunc send fail, and further cause
622 			 * pkt loss, So sleep must quickly but not immediatly
623 			 * because that will cause nullfunc send by mac80211
624 			 * fail, and cause pkt loss, we have tested that 5mA
625 			 * is worked very well */
626 			if (!rtlpriv->psc.multi_buffered)
627 				queue_delayed_work(rtlpriv->works.rtl_wq,
628 						   &rtlpriv->works.ps_work,
629 						   MSECS(5));
630 		} else {
631 			rtl_swlps_rf_awake(hw);
632 			rtlpriv->psc.sw_ps_enabled = false;
633 		}
634 	}
635 
636 	if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
637 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
638 			"IEEE80211_CONF_CHANGE_RETRY_LIMITS %x\n",
639 			hw->conf.long_frame_max_tx_count);
640 		/* brought up everything changes (changed == ~0) indicates first
641 		 * open, so use our default value instead of that of wiphy.
642 		 */
643 		if (changed != ~0) {
644 			mac->retry_long = hw->conf.long_frame_max_tx_count;
645 			mac->retry_short = hw->conf.long_frame_max_tx_count;
646 			rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
647 				(u8 *)(&hw->conf.long_frame_max_tx_count));
648 		}
649 	}
650 
651 	if (changed & IEEE80211_CONF_CHANGE_CHANNEL &&
652 	    !rtlpriv->proximity.proxim_on) {
653 		struct ieee80211_channel *channel = hw->conf.chandef.chan;
654 		enum nl80211_chan_width width = hw->conf.chandef.width;
655 		enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
656 		u8 wide_chan = (u8) channel->hw_value;
657 
658 		/* channel_type is for 20&40M */
659 		if (width < NL80211_CHAN_WIDTH_80)
660 			channel_type =
661 				cfg80211_get_chandef_type(&hw->conf.chandef);
662 		if (mac->act_scanning)
663 			mac->n_channels++;
664 
665 		if (rtlpriv->dm.supp_phymode_switch &&
666 			mac->link_state < MAC80211_LINKED &&
667 			!mac->act_scanning) {
668 			if (rtlpriv->cfg->ops->chk_switch_dmdp)
669 				rtlpriv->cfg->ops->chk_switch_dmdp(hw);
670 		}
671 
672 		/*
673 		 *because we should back channel to
674 		 *current_network.chan in scanning,
675 		 *So if set_chan == current_network.chan
676 		 *we should set it.
677 		 *because mac80211 tell us wrong bw40
678 		 *info for cisco1253 bw20, so we modify
679 		 *it here based on UPPER & LOWER
680 		 */
681 
682 		if (width >= NL80211_CHAN_WIDTH_80) {
683 			if (width == NL80211_CHAN_WIDTH_80) {
684 				u32 center = hw->conf.chandef.center_freq1;
685 				u32 primary =
686 				(u32)hw->conf.chandef.chan->center_freq;
687 
688 				rtlphy->current_chan_bw =
689 					HT_CHANNEL_WIDTH_80;
690 				mac->bw_80 = true;
691 				mac->bw_40 = true;
692 				if (center > primary) {
693 					mac->cur_80_prime_sc =
694 					PRIME_CHNL_OFFSET_LOWER;
695 					if (center - primary == 10) {
696 						mac->cur_40_prime_sc =
697 						PRIME_CHNL_OFFSET_UPPER;
698 
699 						wide_chan += 2;
700 					} else if (center - primary == 30) {
701 						mac->cur_40_prime_sc =
702 						PRIME_CHNL_OFFSET_LOWER;
703 
704 						wide_chan += 6;
705 					}
706 				} else {
707 					mac->cur_80_prime_sc =
708 					PRIME_CHNL_OFFSET_UPPER;
709 					if (primary - center == 10) {
710 						mac->cur_40_prime_sc =
711 						PRIME_CHNL_OFFSET_LOWER;
712 
713 						wide_chan -= 2;
714 					} else if (primary - center == 30) {
715 						mac->cur_40_prime_sc =
716 						PRIME_CHNL_OFFSET_UPPER;
717 
718 						wide_chan -= 6;
719 					}
720 				}
721 			}
722 		} else {
723 			switch (channel_type) {
724 			case NL80211_CHAN_HT20:
725 			case NL80211_CHAN_NO_HT:
726 					/* SC */
727 					mac->cur_40_prime_sc =
728 						PRIME_CHNL_OFFSET_DONT_CARE;
729 					rtlphy->current_chan_bw =
730 						HT_CHANNEL_WIDTH_20;
731 					mac->bw_40 = false;
732 					mac->bw_80 = false;
733 					break;
734 			case NL80211_CHAN_HT40MINUS:
735 					/* SC */
736 					mac->cur_40_prime_sc =
737 						PRIME_CHNL_OFFSET_UPPER;
738 					rtlphy->current_chan_bw =
739 						HT_CHANNEL_WIDTH_20_40;
740 					mac->bw_40 = true;
741 					mac->bw_80 = false;
742 
743 					/*wide channel */
744 					wide_chan -= 2;
745 
746 					break;
747 			case NL80211_CHAN_HT40PLUS:
748 					/* SC */
749 					mac->cur_40_prime_sc =
750 						PRIME_CHNL_OFFSET_LOWER;
751 					rtlphy->current_chan_bw =
752 						HT_CHANNEL_WIDTH_20_40;
753 					mac->bw_40 = true;
754 					mac->bw_80 = false;
755 
756 					/*wide channel */
757 					wide_chan += 2;
758 
759 					break;
760 			default:
761 					mac->bw_40 = false;
762 					mac->bw_80 = false;
763 					pr_err("switch case %#x not processed\n",
764 					       channel_type);
765 					break;
766 			}
767 		}
768 
769 		if (wide_chan <= 0)
770 			wide_chan = 1;
771 
772 		/* In scanning, when before we offchannel we may send a ps=1
773 		 * null to AP, and then we may send a ps = 0 null to AP quickly,
774 		 * but first null may have caused AP to put lots of packet to
775 		 * hw tx buffer. These packets must be tx'd before we go off
776 		 * channel so we must delay more time to let AP flush these
777 		 * packets before going offchannel, or dis-association or
778 		 * delete BA will be caused by AP
779 		 */
780 		if (rtlpriv->mac80211.offchan_delay) {
781 			rtlpriv->mac80211.offchan_delay = false;
782 			mdelay(50);
783 		}
784 
785 		rtlphy->current_channel = wide_chan;
786 
787 		rtlpriv->cfg->ops->switch_channel(hw);
788 		rtlpriv->cfg->ops->set_channel_access(hw);
789 		rtlpriv->cfg->ops->set_bw_mode(hw, channel_type);
790 	}
791 
792 	mutex_unlock(&rtlpriv->locks.conf_mutex);
793 
794 	return 0;
795 }
796 
rtl_op_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * new_flags,u64 multicast)797 static void rtl_op_configure_filter(struct ieee80211_hw *hw,
798 				    unsigned int changed_flags,
799 				    unsigned int *new_flags, u64 multicast)
800 {
801 	bool update_rcr = false;
802 	struct rtl_priv *rtlpriv = rtl_priv(hw);
803 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
804 
805 	*new_flags &= RTL_SUPPORTED_FILTERS;
806 	if (0 == changed_flags)
807 		return;
808 
809 	/*TODO: we disable broadcast now, so enable here */
810 	if (changed_flags & FIF_ALLMULTI) {
811 		if (*new_flags & FIF_ALLMULTI) {
812 			mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AM] |
813 			    rtlpriv->cfg->maps[MAC_RCR_AB];
814 			rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
815 				"Enable receive multicast frame\n");
816 		} else {
817 			mac->rx_conf &= ~(rtlpriv->cfg->maps[MAC_RCR_AM] |
818 					  rtlpriv->cfg->maps[MAC_RCR_AB]);
819 			rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
820 				"Disable receive multicast frame\n");
821 		}
822 		update_rcr = true;
823 	}
824 
825 	if (changed_flags & FIF_FCSFAIL) {
826 		if (*new_flags & FIF_FCSFAIL) {
827 			mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACRC32];
828 			rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
829 				"Enable receive FCS error frame\n");
830 		} else {
831 			mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACRC32];
832 			rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
833 				"Disable receive FCS error frame\n");
834 		}
835 		if (!update_rcr)
836 			update_rcr = true;
837 	}
838 
839 	/* if ssid not set to hw don't check bssid
840 	 * here just used for linked scanning, & linked
841 	 * and nolink check bssid is set in set network_type
842 	 */
843 	if (changed_flags & FIF_BCN_PRBRESP_PROMISC &&
844 	    mac->link_state >= MAC80211_LINKED) {
845 		if (mac->opmode != NL80211_IFTYPE_AP &&
846 		    mac->opmode != NL80211_IFTYPE_MESH_POINT) {
847 			if (*new_flags & FIF_BCN_PRBRESP_PROMISC)
848 				rtlpriv->cfg->ops->set_chk_bssid(hw, false);
849 			else
850 				rtlpriv->cfg->ops->set_chk_bssid(hw, true);
851 			if (update_rcr)
852 				update_rcr = false;
853 		}
854 	}
855 
856 	if (changed_flags & FIF_CONTROL) {
857 		if (*new_flags & FIF_CONTROL) {
858 			mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_ACF];
859 
860 			rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
861 				"Enable receive control frame.\n");
862 		} else {
863 			mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_ACF];
864 			rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
865 				"Disable receive control frame.\n");
866 		}
867 		if (!update_rcr)
868 			update_rcr = true;
869 	}
870 
871 	if (changed_flags & FIF_OTHER_BSS) {
872 		if (*new_flags & FIF_OTHER_BSS) {
873 			mac->rx_conf |= rtlpriv->cfg->maps[MAC_RCR_AAP];
874 			rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
875 				"Enable receive other BSS's frame.\n");
876 		} else {
877 			mac->rx_conf &= ~rtlpriv->cfg->maps[MAC_RCR_AAP];
878 			rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
879 				"Disable receive other BSS's frame.\n");
880 		}
881 		if (!update_rcr)
882 			update_rcr = true;
883 	}
884 
885 	if (update_rcr)
886 		rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RCR,
887 					      (u8 *)(&mac->rx_conf));
888 }
889 
rtl_op_sta_add(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)890 static int rtl_op_sta_add(struct ieee80211_hw *hw,
891 			 struct ieee80211_vif *vif,
892 			 struct ieee80211_sta *sta)
893 {
894 	struct rtl_priv *rtlpriv = rtl_priv(hw);
895 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
896 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
897 	struct rtl_sta_info *sta_entry;
898 
899 	if (sta) {
900 		sta_entry = (struct rtl_sta_info *)sta->drv_priv;
901 		spin_lock_bh(&rtlpriv->locks.entry_list_lock);
902 		list_add_tail(&sta_entry->list, &rtlpriv->entry_list);
903 		spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
904 		if (rtlhal->current_bandtype == BAND_ON_2_4G) {
905 			sta_entry->wireless_mode = WIRELESS_MODE_G;
906 			if (sta->deflink.supp_rates[0] <= 0xf)
907 				sta_entry->wireless_mode = WIRELESS_MODE_B;
908 			if (sta->deflink.ht_cap.ht_supported)
909 				sta_entry->wireless_mode = WIRELESS_MODE_N_24G;
910 
911 			if (vif->type == NL80211_IFTYPE_ADHOC)
912 				sta_entry->wireless_mode = WIRELESS_MODE_G;
913 		} else if (rtlhal->current_bandtype == BAND_ON_5G) {
914 			sta_entry->wireless_mode = WIRELESS_MODE_A;
915 			if (sta->deflink.ht_cap.ht_supported)
916 				sta_entry->wireless_mode = WIRELESS_MODE_N_5G;
917 			if (sta->deflink.vht_cap.vht_supported)
918 				sta_entry->wireless_mode = WIRELESS_MODE_AC_5G;
919 
920 			if (vif->type == NL80211_IFTYPE_ADHOC)
921 				sta_entry->wireless_mode = WIRELESS_MODE_A;
922 		}
923 		/*disable cck rate for p2p*/
924 		if (mac->p2p)
925 			sta->deflink.supp_rates[0] &= 0xfffffff0;
926 
927 		memcpy(sta_entry->mac_addr, sta->addr, ETH_ALEN);
928 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_DMESG,
929 			"Add sta addr is %pM\n", sta->addr);
930 		rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0, true);
931 	}
932 
933 	return 0;
934 }
935 
rtl_op_sta_remove(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)936 static int rtl_op_sta_remove(struct ieee80211_hw *hw,
937 				struct ieee80211_vif *vif,
938 				struct ieee80211_sta *sta)
939 {
940 	struct rtl_priv *rtlpriv = rtl_priv(hw);
941 	struct rtl_sta_info *sta_entry;
942 
943 	if (sta) {
944 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_DMESG,
945 			"Remove sta addr is %pM\n", sta->addr);
946 		sta_entry = (struct rtl_sta_info *)sta->drv_priv;
947 		sta_entry->wireless_mode = 0;
948 		sta_entry->ratr_index = 0;
949 		spin_lock_bh(&rtlpriv->locks.entry_list_lock);
950 		list_del(&sta_entry->list);
951 		spin_unlock_bh(&rtlpriv->locks.entry_list_lock);
952 	}
953 	return 0;
954 }
955 
_rtl_get_hal_qnum(u16 queue)956 static int _rtl_get_hal_qnum(u16 queue)
957 {
958 	int qnum;
959 
960 	switch (queue) {
961 	case 0:
962 		qnum = AC3_VO;
963 		break;
964 	case 1:
965 		qnum = AC2_VI;
966 		break;
967 	case 2:
968 		qnum = AC0_BE;
969 		break;
970 	case 3:
971 		qnum = AC1_BK;
972 		break;
973 	default:
974 		qnum = AC0_BE;
975 		break;
976 	}
977 	return qnum;
978 }
979 
980 /*
981  *for mac80211 VO = 0, VI = 1, BE = 2, BK = 3
982  *for rtl819x  BE = 0, BK = 1, VI = 2, VO = 3
983  */
rtl_op_conf_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int link_id,u16 queue,const struct ieee80211_tx_queue_params * param)984 static int rtl_op_conf_tx(struct ieee80211_hw *hw,
985 			  struct ieee80211_vif *vif,
986 			  unsigned int link_id, u16 queue,
987 			  const struct ieee80211_tx_queue_params *param)
988 {
989 	struct rtl_priv *rtlpriv = rtl_priv(hw);
990 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
991 	int aci;
992 
993 	if (queue >= AC_MAX) {
994 		rtl_dbg(rtlpriv, COMP_ERR, DBG_WARNING,
995 			"queue number %d is incorrect!\n", queue);
996 		return -EINVAL;
997 	}
998 
999 	aci = _rtl_get_hal_qnum(queue);
1000 	mac->ac[aci].aifs = param->aifs;
1001 	mac->ac[aci].cw_min = cpu_to_le16(param->cw_min);
1002 	mac->ac[aci].cw_max = cpu_to_le16(param->cw_max);
1003 	mac->ac[aci].tx_op = cpu_to_le16(param->txop);
1004 	memcpy(&mac->edca_param[aci], param, sizeof(*param));
1005 	rtlpriv->cfg->ops->set_qos(hw, aci);
1006 	return 0;
1007 }
1008 
send_beacon_frame(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1009 static void send_beacon_frame(struct ieee80211_hw *hw,
1010 			      struct ieee80211_vif *vif)
1011 {
1012 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1013 	struct sk_buff *skb = ieee80211_beacon_get(hw, vif, 0);
1014 	struct rtl_tcb_desc tcb_desc;
1015 
1016 	if (skb) {
1017 		memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
1018 		rtlpriv->intf_ops->adapter_tx(hw, NULL, skb, &tcb_desc);
1019 	}
1020 }
1021 
rtl_update_beacon_work_callback(struct work_struct * work)1022 void rtl_update_beacon_work_callback(struct work_struct *work)
1023 {
1024 	struct rtl_works *rtlworks =
1025 	    container_of(work, struct rtl_works, update_beacon_work);
1026 	struct ieee80211_hw *hw = rtlworks->hw;
1027 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1028 	struct ieee80211_vif *vif = rtlpriv->mac80211.vif;
1029 
1030 	if (!vif) {
1031 		WARN_ONCE(true, "no vif to update beacon\n");
1032 		return;
1033 	}
1034 
1035 	mutex_lock(&rtlpriv->locks.conf_mutex);
1036 	send_beacon_frame(hw, vif);
1037 	mutex_unlock(&rtlpriv->locks.conf_mutex);
1038 }
1039 EXPORT_SYMBOL_GPL(rtl_update_beacon_work_callback);
1040 
rtl_op_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * bss_conf,u64 changed)1041 static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
1042 				    struct ieee80211_vif *vif,
1043 				    struct ieee80211_bss_conf *bss_conf,
1044 				    u64 changed)
1045 {
1046 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1047 	struct rtl_hal *rtlhal = rtl_hal(rtlpriv);
1048 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1049 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1050 
1051 	mutex_lock(&rtlpriv->locks.conf_mutex);
1052 	if (vif->type == NL80211_IFTYPE_ADHOC ||
1053 	    vif->type == NL80211_IFTYPE_AP ||
1054 	    vif->type == NL80211_IFTYPE_MESH_POINT) {
1055 		if (changed & BSS_CHANGED_BEACON ||
1056 		    (changed & BSS_CHANGED_BEACON_ENABLED &&
1057 		     bss_conf->enable_beacon)) {
1058 			if (mac->beacon_enabled == 0) {
1059 				rtl_dbg(rtlpriv, COMP_MAC80211, DBG_DMESG,
1060 					"BSS_CHANGED_BEACON_ENABLED\n");
1061 
1062 				/*start hw beacon interrupt. */
1063 				/*rtlpriv->cfg->ops->set_bcn_reg(hw); */
1064 				mac->beacon_enabled = 1;
1065 				rtlpriv->cfg->ops->update_interrupt_mask(hw,
1066 						rtlpriv->cfg->maps
1067 						[RTL_IBSS_INT_MASKS], 0);
1068 
1069 				if (rtlpriv->cfg->ops->linked_set_reg)
1070 					rtlpriv->cfg->ops->linked_set_reg(hw);
1071 				send_beacon_frame(hw, vif);
1072 			}
1073 		}
1074 		if ((changed & BSS_CHANGED_BEACON_ENABLED &&
1075 		    !bss_conf->enable_beacon)) {
1076 			if (mac->beacon_enabled == 1) {
1077 				rtl_dbg(rtlpriv, COMP_MAC80211, DBG_DMESG,
1078 					"ADHOC DISABLE BEACON\n");
1079 
1080 				mac->beacon_enabled = 0;
1081 				rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
1082 						rtlpriv->cfg->maps
1083 						[RTL_IBSS_INT_MASKS]);
1084 			}
1085 		}
1086 		if (changed & BSS_CHANGED_BEACON_INT) {
1087 			rtl_dbg(rtlpriv, COMP_BEACON, DBG_TRACE,
1088 				"BSS_CHANGED_BEACON_INT\n");
1089 			mac->beacon_interval = bss_conf->beacon_int;
1090 			rtlpriv->cfg->ops->set_bcn_intv(hw);
1091 		}
1092 	}
1093 
1094 	/*TODO: reference to enum ieee80211_bss_change */
1095 	if (changed & BSS_CHANGED_ASSOC) {
1096 		u8 mstatus;
1097 
1098 		if (vif->cfg.assoc) {
1099 			struct ieee80211_sta *sta = NULL;
1100 			u8 keep_alive = 10;
1101 
1102 			mstatus = RT_MEDIA_CONNECT;
1103 			/* we should reset all sec info & cam
1104 			 * before set cam after linked, we should not
1105 			 * reset in disassoc, that will cause tkip->wep
1106 			 * fail because some flag will be wrong */
1107 			/* reset sec info */
1108 			rtl_cam_reset_sec_info(hw);
1109 			/* reset cam to fix wep fail issue
1110 			 * when change from wpa to wep */
1111 			rtl_cam_reset_all_entry(hw);
1112 
1113 			mac->link_state = MAC80211_LINKED;
1114 			mac->cnt_after_linked = 0;
1115 			mac->assoc_id = vif->cfg.aid;
1116 			memcpy(mac->bssid, bss_conf->bssid, ETH_ALEN);
1117 
1118 			if (rtlpriv->cfg->ops->linked_set_reg)
1119 				rtlpriv->cfg->ops->linked_set_reg(hw);
1120 
1121 			rcu_read_lock();
1122 			sta = ieee80211_find_sta(vif, (u8 *)bss_conf->bssid);
1123 			if (!sta) {
1124 				rcu_read_unlock();
1125 				goto out;
1126 			}
1127 			rtl_dbg(rtlpriv, COMP_EASY_CONCURRENT, DBG_LOUD,
1128 				"send PS STATIC frame\n");
1129 			if (rtlpriv->dm.supp_phymode_switch) {
1130 				if (sta->deflink.ht_cap.ht_supported)
1131 					rtl_send_smps_action(hw, sta,
1132 							IEEE80211_SMPS_STATIC);
1133 			}
1134 
1135 			if (rtlhal->current_bandtype == BAND_ON_5G) {
1136 				mac->mode = WIRELESS_MODE_A;
1137 			} else {
1138 				if (sta->deflink.supp_rates[0] <= 0xf)
1139 					mac->mode = WIRELESS_MODE_B;
1140 				else
1141 					mac->mode = WIRELESS_MODE_G;
1142 			}
1143 
1144 			if (sta->deflink.ht_cap.ht_supported) {
1145 				if (rtlhal->current_bandtype == BAND_ON_2_4G)
1146 					mac->mode = WIRELESS_MODE_N_24G;
1147 				else
1148 					mac->mode = WIRELESS_MODE_N_5G;
1149 			}
1150 
1151 			if (sta->deflink.vht_cap.vht_supported) {
1152 				if (rtlhal->current_bandtype == BAND_ON_5G)
1153 					mac->mode = WIRELESS_MODE_AC_5G;
1154 				else
1155 					mac->mode = WIRELESS_MODE_AC_24G;
1156 			}
1157 
1158 			if (vif->type == NL80211_IFTYPE_STATION)
1159 				rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0,
1160 								   true);
1161 			rcu_read_unlock();
1162 
1163 			/* to avoid AP Disassociation caused by inactivity */
1164 			rtlpriv->cfg->ops->set_hw_reg(hw,
1165 						      HW_VAR_KEEP_ALIVE,
1166 						      (u8 *)(&keep_alive));
1167 
1168 			rtl_dbg(rtlpriv, COMP_MAC80211, DBG_DMESG,
1169 				"BSS_CHANGED_ASSOC\n");
1170 		} else {
1171 			struct cfg80211_bss *bss = NULL;
1172 
1173 			mstatus = RT_MEDIA_DISCONNECT;
1174 
1175 			if (mac->link_state == MAC80211_LINKED)
1176 				rtl_lps_leave(hw, true);
1177 			if (ppsc->p2p_ps_info.p2p_ps_mode > P2P_PS_NONE)
1178 				rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
1179 			mac->link_state = MAC80211_NOLINK;
1180 
1181 			bss = cfg80211_get_bss(hw->wiphy, NULL,
1182 					       (u8 *)mac->bssid, NULL, 0,
1183 					       IEEE80211_BSS_TYPE_ESS,
1184 					       IEEE80211_PRIVACY_OFF);
1185 
1186 			rtl_dbg(rtlpriv, COMP_MAC80211, DBG_DMESG,
1187 				"bssid = %pMF\n", mac->bssid);
1188 
1189 			if (bss) {
1190 				cfg80211_unlink_bss(hw->wiphy, bss);
1191 				cfg80211_put_bss(hw->wiphy, bss);
1192 				rtl_dbg(rtlpriv, COMP_MAC80211, DBG_DMESG,
1193 					"cfg80211_unlink !!\n");
1194 			}
1195 
1196 			eth_zero_addr(mac->bssid);
1197 			mac->vendor = PEER_UNKNOWN;
1198 			mac->mode = 0;
1199 
1200 			if (rtlpriv->dm.supp_phymode_switch) {
1201 				if (rtlpriv->cfg->ops->chk_switch_dmdp)
1202 					rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1203 			}
1204 			rtl_dbg(rtlpriv, COMP_MAC80211, DBG_DMESG,
1205 				"BSS_CHANGED_UN_ASSOC\n");
1206 		}
1207 		rtlpriv->cfg->ops->set_network_type(hw, vif->type);
1208 		/* For FW LPS:
1209 		 * To tell firmware we have connected or disconnected
1210 		 */
1211 		rtlpriv->cfg->ops->set_hw_reg(hw,
1212 					      HW_VAR_H2C_FW_JOINBSSRPT,
1213 					      (u8 *)(&mstatus));
1214 		ppsc->report_linked = (mstatus == RT_MEDIA_CONNECT) ?
1215 				      true : false;
1216 
1217 		if (rtlpriv->cfg->ops->get_btc_status())
1218 			rtlpriv->btcoexist.btc_ops->btc_mediastatus_notify(
1219 							rtlpriv, mstatus);
1220 	}
1221 
1222 	if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1223 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_TRACE,
1224 			"BSS_CHANGED_ERP_CTS_PROT\n");
1225 		mac->use_cts_protect = bss_conf->use_cts_prot;
1226 	}
1227 
1228 	if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1229 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD,
1230 			"BSS_CHANGED_ERP_PREAMBLE use short preamble:%x\n",
1231 			  bss_conf->use_short_preamble);
1232 
1233 		mac->short_preamble = bss_conf->use_short_preamble;
1234 		rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ACK_PREAMBLE,
1235 					      (u8 *)(&mac->short_preamble));
1236 	}
1237 
1238 	if (changed & BSS_CHANGED_ERP_SLOT) {
1239 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_TRACE,
1240 			"BSS_CHANGED_ERP_SLOT\n");
1241 
1242 		if (bss_conf->use_short_slot)
1243 			mac->slot_time = RTL_SLOT_TIME_9;
1244 		else
1245 			mac->slot_time = RTL_SLOT_TIME_20;
1246 
1247 		rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SLOT_TIME,
1248 					      (u8 *)(&mac->slot_time));
1249 	}
1250 
1251 	if (changed & BSS_CHANGED_HT) {
1252 		struct ieee80211_sta *sta = NULL;
1253 
1254 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_TRACE,
1255 			"BSS_CHANGED_HT\n");
1256 
1257 		rcu_read_lock();
1258 		sta = ieee80211_find_sta(vif, (u8 *)bss_conf->bssid);
1259 		if (sta) {
1260 			if (sta->deflink.ht_cap.ampdu_density >
1261 			    mac->current_ampdu_density)
1262 				mac->current_ampdu_density =
1263 				    sta->deflink.ht_cap.ampdu_density;
1264 			if (sta->deflink.ht_cap.ampdu_factor <
1265 			    mac->current_ampdu_factor)
1266 				mac->current_ampdu_factor =
1267 				    sta->deflink.ht_cap.ampdu_factor;
1268 		}
1269 		rcu_read_unlock();
1270 
1271 		rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SHORTGI_DENSITY,
1272 					      (u8 *)(&mac->max_mss_density));
1273 		rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_FACTOR,
1274 					      &mac->current_ampdu_factor);
1275 		rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_MIN_SPACE,
1276 					      &mac->current_ampdu_density);
1277 	}
1278 
1279 	if (changed & BSS_CHANGED_BSSID) {
1280 		u32 basic_rates;
1281 		struct ieee80211_sta *sta = NULL;
1282 
1283 		rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BSSID,
1284 					      (u8 *)bss_conf->bssid);
1285 
1286 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_DMESG,
1287 			"bssid: %pM\n", bss_conf->bssid);
1288 
1289 		mac->vendor = PEER_UNKNOWN;
1290 		memcpy(mac->bssid, bss_conf->bssid, ETH_ALEN);
1291 
1292 		rcu_read_lock();
1293 		sta = ieee80211_find_sta(vif, (u8 *)bss_conf->bssid);
1294 		if (!sta) {
1295 			rcu_read_unlock();
1296 			goto out;
1297 		}
1298 
1299 		if (rtlhal->current_bandtype == BAND_ON_5G) {
1300 			mac->mode = WIRELESS_MODE_A;
1301 		} else {
1302 			if (sta->deflink.supp_rates[0] <= 0xf)
1303 				mac->mode = WIRELESS_MODE_B;
1304 			else
1305 				mac->mode = WIRELESS_MODE_G;
1306 		}
1307 
1308 		if (sta->deflink.ht_cap.ht_supported) {
1309 			if (rtlhal->current_bandtype == BAND_ON_2_4G)
1310 				mac->mode = WIRELESS_MODE_N_24G;
1311 			else
1312 				mac->mode = WIRELESS_MODE_N_5G;
1313 		}
1314 
1315 		if (sta->deflink.vht_cap.vht_supported) {
1316 			if (rtlhal->current_bandtype == BAND_ON_5G)
1317 				mac->mode = WIRELESS_MODE_AC_5G;
1318 			else
1319 				mac->mode = WIRELESS_MODE_AC_24G;
1320 		}
1321 
1322 		/* just station need it, because ibss & ap mode will
1323 		 * set in sta_add, and will be NULL here */
1324 		if (vif->type == NL80211_IFTYPE_STATION) {
1325 			struct rtl_sta_info *sta_entry;
1326 
1327 			sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1328 			sta_entry->wireless_mode = mac->mode;
1329 		}
1330 
1331 		if (sta->deflink.ht_cap.ht_supported) {
1332 			mac->ht_enable = true;
1333 
1334 			/*
1335 			 * for cisco 1252 bw20 it's wrong
1336 			 * if (ht_cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) {
1337 			 *	mac->bw_40 = true;
1338 			 * }
1339 			 * */
1340 		}
1341 
1342 		if (sta->deflink.vht_cap.vht_supported)
1343 			mac->vht_enable = true;
1344 
1345 		if (changed & BSS_CHANGED_BASIC_RATES) {
1346 			/* for 5G must << RATE_6M_INDEX = 4,
1347 			 * because 5G have no cck rate*/
1348 			if (rtlhal->current_bandtype == BAND_ON_5G)
1349 				basic_rates = sta->deflink.supp_rates[1] << 4;
1350 			else
1351 				basic_rates = sta->deflink.supp_rates[0];
1352 
1353 			mac->basic_rates = basic_rates;
1354 			rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE,
1355 					(u8 *)(&basic_rates));
1356 		}
1357 		rcu_read_unlock();
1358 	}
1359 out:
1360 	mutex_unlock(&rtlpriv->locks.conf_mutex);
1361 }
1362 
rtl_op_get_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1363 static u64 rtl_op_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1364 {
1365 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1366 	u64 tsf;
1367 
1368 	rtlpriv->cfg->ops->get_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *)(&tsf));
1369 	return tsf;
1370 }
1371 
rtl_op_set_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u64 tsf)1372 static void rtl_op_set_tsf(struct ieee80211_hw *hw,
1373 			   struct ieee80211_vif *vif, u64 tsf)
1374 {
1375 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1376 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1377 	u8 bibss = (mac->opmode == NL80211_IFTYPE_ADHOC) ? 1 : 0;
1378 
1379 	mac->tsf = tsf;
1380 	rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_CORRECT_TSF, (u8 *)(&bibss));
1381 }
1382 
rtl_op_reset_tsf(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1383 static void rtl_op_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1384 {
1385 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1386 	u8 tmp = 0;
1387 
1388 	rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_DUAL_TSF_RST, (u8 *)(&tmp));
1389 }
1390 
rtl_op_sta_notify(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum sta_notify_cmd cmd,struct ieee80211_sta * sta)1391 static void rtl_op_sta_notify(struct ieee80211_hw *hw,
1392 			      struct ieee80211_vif *vif,
1393 			      enum sta_notify_cmd cmd,
1394 			      struct ieee80211_sta *sta)
1395 {
1396 	switch (cmd) {
1397 	case STA_NOTIFY_SLEEP:
1398 		break;
1399 	case STA_NOTIFY_AWAKE:
1400 		break;
1401 	default:
1402 		break;
1403 	}
1404 }
1405 
rtl_op_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)1406 static int rtl_op_ampdu_action(struct ieee80211_hw *hw,
1407 			       struct ieee80211_vif *vif,
1408 			       struct ieee80211_ampdu_params *params)
1409 {
1410 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1411 	struct ieee80211_sta *sta = params->sta;
1412 	enum ieee80211_ampdu_mlme_action action = params->action;
1413 	u16 tid = params->tid;
1414 	u16 *ssn = &params->ssn;
1415 
1416 	switch (action) {
1417 	case IEEE80211_AMPDU_TX_START:
1418 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_TRACE,
1419 			"IEEE80211_AMPDU_TX_START: TID:%d\n", tid);
1420 		return rtl_tx_agg_start(hw, vif, sta, tid, ssn);
1421 	case IEEE80211_AMPDU_TX_STOP_CONT:
1422 	case IEEE80211_AMPDU_TX_STOP_FLUSH:
1423 	case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1424 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_TRACE,
1425 			"IEEE80211_AMPDU_TX_STOP: TID:%d\n", tid);
1426 		return rtl_tx_agg_stop(hw, vif, sta, tid);
1427 	case IEEE80211_AMPDU_TX_OPERATIONAL:
1428 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_TRACE,
1429 			"IEEE80211_AMPDU_TX_OPERATIONAL:TID:%d\n", tid);
1430 		rtl_tx_agg_oper(hw, sta, tid);
1431 		break;
1432 	case IEEE80211_AMPDU_RX_START:
1433 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_TRACE,
1434 			"IEEE80211_AMPDU_RX_START:TID:%d\n", tid);
1435 		return rtl_rx_agg_start(hw, sta, tid);
1436 	case IEEE80211_AMPDU_RX_STOP:
1437 		rtl_dbg(rtlpriv, COMP_MAC80211, DBG_TRACE,
1438 			"IEEE80211_AMPDU_RX_STOP:TID:%d\n", tid);
1439 		return rtl_rx_agg_stop(hw, sta, tid);
1440 	default:
1441 		pr_err("IEEE80211_AMPDU_ERR!!!!:\n");
1442 		return -EOPNOTSUPP;
1443 	}
1444 	return 0;
1445 }
1446 
rtl_op_sw_scan_start(struct ieee80211_hw * hw,struct ieee80211_vif * vif,const u8 * mac_addr)1447 static void rtl_op_sw_scan_start(struct ieee80211_hw *hw,
1448 				 struct ieee80211_vif *vif,
1449 				 const u8 *mac_addr)
1450 {
1451 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1452 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1453 
1454 	rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "\n");
1455 	mac->act_scanning = true;
1456 	if (rtlpriv->link_info.higher_busytraffic) {
1457 		mac->skip_scan = true;
1458 		return;
1459 	}
1460 
1461 	if (rtlpriv->cfg->ops->get_btc_status())
1462 		rtlpriv->btcoexist.btc_ops->btc_scan_notify(rtlpriv, 1);
1463 	else if (rtlpriv->btcoexist.btc_ops)
1464 		rtlpriv->btcoexist.btc_ops->btc_scan_notify_wifi_only(rtlpriv,
1465 								      1);
1466 
1467 	if (rtlpriv->dm.supp_phymode_switch) {
1468 		if (rtlpriv->cfg->ops->chk_switch_dmdp)
1469 			rtlpriv->cfg->ops->chk_switch_dmdp(hw);
1470 	}
1471 
1472 	if (mac->link_state == MAC80211_LINKED) {
1473 		rtl_lps_leave(hw, true);
1474 		mac->link_state = MAC80211_LINKED_SCANNING;
1475 	} else {
1476 		rtl_ips_nic_on(hw);
1477 	}
1478 
1479 	/* Dul mac */
1480 	rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
1481 
1482 	rtlpriv->cfg->ops->led_control(hw, LED_CTL_SITE_SURVEY);
1483 	rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_BACKUP_BAND0);
1484 }
1485 
rtl_op_sw_scan_complete(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1486 static void rtl_op_sw_scan_complete(struct ieee80211_hw *hw,
1487 				    struct ieee80211_vif *vif)
1488 {
1489 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1490 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1491 
1492 	rtl_dbg(rtlpriv, COMP_MAC80211, DBG_LOUD, "\n");
1493 	mac->act_scanning = false;
1494 	mac->skip_scan = false;
1495 
1496 	rtlpriv->btcoexist.btc_info.ap_num = rtlpriv->scan_list.num;
1497 
1498 	if (rtlpriv->link_info.higher_busytraffic)
1499 		return;
1500 
1501 	/* p2p will use 1/6/11 to scan */
1502 	if (mac->n_channels == 3)
1503 		mac->p2p_in_use = true;
1504 	else
1505 		mac->p2p_in_use = false;
1506 	mac->n_channels = 0;
1507 	/* Dul mac */
1508 	rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false;
1509 
1510 	if (mac->link_state == MAC80211_LINKED_SCANNING) {
1511 		mac->link_state = MAC80211_LINKED;
1512 		if (mac->opmode == NL80211_IFTYPE_STATION) {
1513 			/* fix fwlps issue */
1514 			rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
1515 		}
1516 	}
1517 
1518 	rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_RESTORE);
1519 	if (rtlpriv->cfg->ops->get_btc_status())
1520 		rtlpriv->btcoexist.btc_ops->btc_scan_notify(rtlpriv, 0);
1521 	else if (rtlpriv->btcoexist.btc_ops)
1522 		rtlpriv->btcoexist.btc_ops->btc_scan_notify_wifi_only(rtlpriv,
1523 								      0);
1524 }
1525 
rtl_op_set_key(struct ieee80211_hw * hw,enum set_key_cmd cmd,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key)1526 static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1527 			  struct ieee80211_vif *vif, struct ieee80211_sta *sta,
1528 			  struct ieee80211_key_conf *key)
1529 {
1530 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1531 	u8 key_type = NO_ENCRYPTION;
1532 	u8 key_idx;
1533 	bool group_key = false;
1534 	bool wep_only = false;
1535 	int err = 0;
1536 	u8 mac_addr[ETH_ALEN];
1537 	u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1538 
1539 	rtlpriv->btcoexist.btc_info.in_4way = false;
1540 
1541 	if (rtlpriv->cfg->mod_params->sw_crypto || rtlpriv->sec.use_sw_sec) {
1542 		rtl_dbg(rtlpriv, COMP_ERR, DBG_WARNING,
1543 			"not open hw encryption\n");
1544 		return -ENOSPC;	/*User disabled HW-crypto */
1545 	}
1546 	/* To support IBSS, use sw-crypto for GTK */
1547 	if ((vif->type == NL80211_IFTYPE_ADHOC ||
1548 	     vif->type == NL80211_IFTYPE_MESH_POINT) &&
1549 	    !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
1550 		return -ENOSPC;
1551 	rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
1552 		"%s hardware based encryption for keyidx: %d, mac: %pM\n",
1553 		cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
1554 		sta ? sta->addr : bcast_addr);
1555 	rtlpriv->sec.being_setkey = true;
1556 	rtl_ips_nic_on(hw);
1557 	mutex_lock(&rtlpriv->locks.conf_mutex);
1558 	/* <1> get encryption alg */
1559 
1560 	switch (key->cipher) {
1561 	case WLAN_CIPHER_SUITE_WEP40:
1562 		key_type = WEP40_ENCRYPTION;
1563 		rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG, "alg:WEP40\n");
1564 		break;
1565 	case WLAN_CIPHER_SUITE_WEP104:
1566 		rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG, "alg:WEP104\n");
1567 		key_type = WEP104_ENCRYPTION;
1568 		break;
1569 	case WLAN_CIPHER_SUITE_TKIP:
1570 		key_type = TKIP_ENCRYPTION;
1571 		rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG, "alg:TKIP\n");
1572 		break;
1573 	case WLAN_CIPHER_SUITE_CCMP:
1574 		key_type = AESCCMP_ENCRYPTION;
1575 		rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG, "alg:CCMP\n");
1576 		break;
1577 	case WLAN_CIPHER_SUITE_AES_CMAC:
1578 		/* HW don't support CMAC encryption,
1579 		 * use software CMAC encryption
1580 		 */
1581 		key_type = AESCMAC_ENCRYPTION;
1582 		rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG, "alg:CMAC\n");
1583 		rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
1584 			"HW don't support CMAC encryption, use software CMAC encryption\n");
1585 		err = -EOPNOTSUPP;
1586 		goto out_unlock;
1587 	default:
1588 		pr_err("alg_err:%x!!!!:\n", key->cipher);
1589 		goto out_unlock;
1590 	}
1591 	if (key_type == WEP40_ENCRYPTION ||
1592 	   key_type == WEP104_ENCRYPTION ||
1593 	   vif->type == NL80211_IFTYPE_ADHOC)
1594 		rtlpriv->sec.use_defaultkey = true;
1595 
1596 	/* <2> get key_idx */
1597 	key_idx = (u8) (key->keyidx);
1598 	if (key_idx > 3)
1599 		goto out_unlock;
1600 	/* <3> if pairwise key enable_hw_sec */
1601 	group_key = !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE);
1602 
1603 	/* wep always be group key, but there are two conditions:
1604 	 * 1) wep only: is just for wep enc, in this condition
1605 	 * rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION
1606 	 * will be true & enable_hw_sec will be set when wep
1607 	 * ke setting.
1608 	 * 2) wep(group) + AES(pairwise): some AP like cisco
1609 	 * may use it, in this condition enable_hw_sec will not
1610 	 * be set when wep key setting */
1611 	/* we must reset sec_info after lingked before set key,
1612 	 * or some flag will be wrong*/
1613 	if (vif->type == NL80211_IFTYPE_AP ||
1614 		vif->type == NL80211_IFTYPE_MESH_POINT) {
1615 		if (!group_key || key_type == WEP40_ENCRYPTION ||
1616 			key_type == WEP104_ENCRYPTION) {
1617 			if (group_key)
1618 				wep_only = true;
1619 			rtlpriv->cfg->ops->enable_hw_sec(hw);
1620 		}
1621 	} else {
1622 		if (!group_key || vif->type == NL80211_IFTYPE_ADHOC ||
1623 		    rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION) {
1624 			if (rtlpriv->sec.pairwise_enc_algorithm ==
1625 			    NO_ENCRYPTION &&
1626 			   (key_type == WEP40_ENCRYPTION ||
1627 			    key_type == WEP104_ENCRYPTION))
1628 				wep_only = true;
1629 			rtlpriv->sec.pairwise_enc_algorithm = key_type;
1630 			rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
1631 				"set enable_hw_sec, key_type:%x(OPEN:0 WEP40:1 TKIP:2 AES:4 WEP104:5)\n",
1632 				key_type);
1633 			rtlpriv->cfg->ops->enable_hw_sec(hw);
1634 		}
1635 	}
1636 	/* <4> set key based on cmd */
1637 	switch (cmd) {
1638 	case SET_KEY:
1639 		if (wep_only) {
1640 			rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
1641 				"set WEP(group/pairwise) key\n");
1642 			/* Pairwise key with an assigned MAC address. */
1643 			rtlpriv->sec.pairwise_enc_algorithm = key_type;
1644 			rtlpriv->sec.group_enc_algorithm = key_type;
1645 			/*set local buf about wep key. */
1646 			memcpy(rtlpriv->sec.key_buf[key_idx],
1647 			       key->key, key->keylen);
1648 			rtlpriv->sec.key_len[key_idx] = key->keylen;
1649 			eth_zero_addr(mac_addr);
1650 		} else if (group_key) {	/* group key */
1651 			rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
1652 				"set group key\n");
1653 			/* group key */
1654 			rtlpriv->sec.group_enc_algorithm = key_type;
1655 			/*set local buf about group key. */
1656 			memcpy(rtlpriv->sec.key_buf[key_idx],
1657 			       key->key, key->keylen);
1658 			rtlpriv->sec.key_len[key_idx] = key->keylen;
1659 			memcpy(mac_addr, bcast_addr, ETH_ALEN);
1660 		} else {	/* pairwise key */
1661 			rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
1662 				"set pairwise key\n");
1663 			if (!sta) {
1664 				WARN_ONCE(true,
1665 					  "rtlwifi: pairwise key without mac_addr\n");
1666 
1667 				err = -EOPNOTSUPP;
1668 				goto out_unlock;
1669 			}
1670 			/* Pairwise key with an assigned MAC address. */
1671 			rtlpriv->sec.pairwise_enc_algorithm = key_type;
1672 			/*set local buf about pairwise key. */
1673 			memcpy(rtlpriv->sec.key_buf[PAIRWISE_KEYIDX],
1674 			       key->key, key->keylen);
1675 			rtlpriv->sec.key_len[PAIRWISE_KEYIDX] = key->keylen;
1676 			rtlpriv->sec.pairwise_key =
1677 			    rtlpriv->sec.key_buf[PAIRWISE_KEYIDX];
1678 			memcpy(mac_addr, sta->addr, ETH_ALEN);
1679 		}
1680 		rtlpriv->cfg->ops->set_key(hw, key_idx, mac_addr,
1681 					   group_key, key_type, wep_only,
1682 					   false);
1683 		/* <5> tell mac80211 do something: */
1684 		/*must use sw generate IV, or can not work !!!!. */
1685 		key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1686 		key->hw_key_idx = key_idx;
1687 		if (key_type == TKIP_ENCRYPTION)
1688 			key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1689 		/*use software CCMP encryption for management frames (MFP) */
1690 		if (key_type == AESCCMP_ENCRYPTION)
1691 			key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
1692 		break;
1693 	case DISABLE_KEY:
1694 		rtl_dbg(rtlpriv, COMP_SEC, DBG_DMESG,
1695 			"disable key delete one entry\n");
1696 		/*set local buf about wep key. */
1697 		if (vif->type == NL80211_IFTYPE_AP ||
1698 			vif->type == NL80211_IFTYPE_MESH_POINT) {
1699 			if (sta)
1700 				rtl_cam_del_entry(hw, sta->addr);
1701 		}
1702 		memset(rtlpriv->sec.key_buf[key_idx], 0, key->keylen);
1703 		rtlpriv->sec.key_len[key_idx] = 0;
1704 		eth_zero_addr(mac_addr);
1705 		/*
1706 		 *mac80211 will delete entries one by one,
1707 		 *so don't use rtl_cam_reset_all_entry
1708 		 *or clear all entry here.
1709 		 */
1710 		rtl_wait_tx_report_acked(hw, 500); /* wait 500ms for TX ack */
1711 
1712 		rtl_cam_delete_one_entry(hw, mac_addr, key_idx);
1713 		break;
1714 	default:
1715 		pr_err("cmd_err:%x!!!!:\n", cmd);
1716 	}
1717 out_unlock:
1718 	mutex_unlock(&rtlpriv->locks.conf_mutex);
1719 	rtlpriv->sec.being_setkey = false;
1720 	return err;
1721 }
1722 
rtl_op_rfkill_poll(struct ieee80211_hw * hw)1723 static void rtl_op_rfkill_poll(struct ieee80211_hw *hw)
1724 {
1725 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1726 
1727 	bool radio_state;
1728 	bool blocked;
1729 	u8 valid = 0;
1730 
1731 	if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
1732 		return;
1733 
1734 	mutex_lock(&rtlpriv->locks.conf_mutex);
1735 
1736 	/*if Radio On return true here */
1737 	radio_state = rtlpriv->cfg->ops->radio_onoff_checking(hw, &valid);
1738 
1739 	if (valid) {
1740 		if (unlikely(radio_state != rtlpriv->rfkill.rfkill_state)) {
1741 			rtlpriv->rfkill.rfkill_state = radio_state;
1742 
1743 			rtl_dbg(rtlpriv, COMP_RF, DBG_DMESG,
1744 				"wireless radio switch turned %s\n",
1745 				radio_state ? "on" : "off");
1746 
1747 			blocked = !rtlpriv->rfkill.rfkill_state;
1748 			wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
1749 		}
1750 	}
1751 
1752 	mutex_unlock(&rtlpriv->locks.conf_mutex);
1753 }
1754 
1755 /* this function is called by mac80211 to flush tx buffer
1756  * before switch channle or power save, or tx buffer packet
1757  * maybe send after offchannel or rf sleep, this may cause
1758  * dis-association by AP */
rtl_op_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)1759 static void rtl_op_flush(struct ieee80211_hw *hw,
1760 			 struct ieee80211_vif *vif,
1761 			 u32 queues,
1762 			 bool drop)
1763 {
1764 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1765 
1766 	if (rtlpriv->intf_ops->flush)
1767 		rtlpriv->intf_ops->flush(hw, queues, drop);
1768 }
1769 
rtl_op_set_tim(struct ieee80211_hw * hw,struct ieee80211_sta * sta,bool set)1770 static int rtl_op_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
1771 			  bool set)
1772 {
1773 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1774 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1775 
1776 	if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192CU)
1777 		schedule_work(&rtlpriv->works.update_beacon_work);
1778 
1779 	return 0;
1780 }
1781 
1782 /*	Description:
1783  *		This routine deals with the Power Configuration CMD
1784  *		 parsing for RTL8723/RTL8188E Series IC.
1785  *	Assumption:
1786  *		We should follow specific format that was released from HW SD.
1787  */
rtl_hal_pwrseqcmdparsing(struct rtl_priv * rtlpriv,u8 cut_version,u8 faversion,u8 interface_type,struct wlan_pwr_cfg pwrcfgcmd[])1788 bool rtl_hal_pwrseqcmdparsing(struct rtl_priv *rtlpriv, u8 cut_version,
1789 			      u8 faversion, u8 interface_type,
1790 			      struct wlan_pwr_cfg pwrcfgcmd[])
1791 {
1792 	struct wlan_pwr_cfg cfg_cmd;
1793 	bool polling_bit = false;
1794 	u32 ary_idx = 0;
1795 	u8 value = 0;
1796 	u32 offset = 0;
1797 	u32 polling_count = 0;
1798 	u32 max_polling_cnt = 5000;
1799 
1800 	do {
1801 		cfg_cmd = pwrcfgcmd[ary_idx];
1802 		rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE,
1803 			"%s: offset(%#x),cut_msk(%#x), famsk(%#x), interface_msk(%#x), base(%#x), cmd(%#x), msk(%#x), value(%#x)\n",
1804 			__func__,
1805 			GET_PWR_CFG_OFFSET(cfg_cmd),
1806 					   GET_PWR_CFG_CUT_MASK(cfg_cmd),
1807 			GET_PWR_CFG_FAB_MASK(cfg_cmd),
1808 					     GET_PWR_CFG_INTF_MASK(cfg_cmd),
1809 			GET_PWR_CFG_BASE(cfg_cmd), GET_PWR_CFG_CMD(cfg_cmd),
1810 			GET_PWR_CFG_MASK(cfg_cmd), GET_PWR_CFG_VALUE(cfg_cmd));
1811 
1812 		if ((GET_PWR_CFG_FAB_MASK(cfg_cmd)&faversion) &&
1813 		    (GET_PWR_CFG_CUT_MASK(cfg_cmd)&cut_version) &&
1814 		    (GET_PWR_CFG_INTF_MASK(cfg_cmd)&interface_type)) {
1815 			switch (GET_PWR_CFG_CMD(cfg_cmd)) {
1816 			case PWR_CMD_READ:
1817 				rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE,
1818 					"rtl_hal_pwrseqcmdparsing(): PWR_CMD_READ\n");
1819 				break;
1820 			case PWR_CMD_WRITE:
1821 				rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE,
1822 					"%s(): PWR_CMD_WRITE\n", __func__);
1823 				offset = GET_PWR_CFG_OFFSET(cfg_cmd);
1824 
1825 				/*Read the value from system register*/
1826 				value = rtl_read_byte(rtlpriv, offset);
1827 				value &= (~(GET_PWR_CFG_MASK(cfg_cmd)));
1828 				value |= (GET_PWR_CFG_VALUE(cfg_cmd) &
1829 					  GET_PWR_CFG_MASK(cfg_cmd));
1830 
1831 				/*Write the value back to system register*/
1832 				rtl_write_byte(rtlpriv, offset, value);
1833 				break;
1834 			case PWR_CMD_POLLING:
1835 				rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE,
1836 					"rtl_hal_pwrseqcmdparsing(): PWR_CMD_POLLING\n");
1837 				polling_bit = false;
1838 				offset = GET_PWR_CFG_OFFSET(cfg_cmd);
1839 
1840 				do {
1841 					value = rtl_read_byte(rtlpriv, offset);
1842 
1843 					value &= GET_PWR_CFG_MASK(cfg_cmd);
1844 					if (value ==
1845 					    (GET_PWR_CFG_VALUE(cfg_cmd) &
1846 					     GET_PWR_CFG_MASK(cfg_cmd)))
1847 						polling_bit = true;
1848 					else
1849 						udelay(10);
1850 
1851 					if (polling_count++ > max_polling_cnt)
1852 						return false;
1853 				} while (!polling_bit);
1854 				break;
1855 			case PWR_CMD_DELAY:
1856 				rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE,
1857 					"%s: PWR_CMD_DELAY\n", __func__);
1858 				if (GET_PWR_CFG_VALUE(cfg_cmd) ==
1859 				    PWRSEQ_DELAY_US)
1860 					udelay(GET_PWR_CFG_OFFSET(cfg_cmd));
1861 				else
1862 					mdelay(GET_PWR_CFG_OFFSET(cfg_cmd));
1863 				break;
1864 			case PWR_CMD_END:
1865 				rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE,
1866 					"%s: PWR_CMD_END\n", __func__);
1867 				return true;
1868 			default:
1869 				WARN_ONCE(true,
1870 					  "rtlwifi: rtl_hal_pwrseqcmdparsing(): Unknown CMD!!\n");
1871 				break;
1872 			}
1873 		}
1874 		ary_idx++;
1875 	} while (1);
1876 
1877 	return true;
1878 }
1879 EXPORT_SYMBOL(rtl_hal_pwrseqcmdparsing);
1880 
rtl_cmd_send_packet(struct ieee80211_hw * hw,struct sk_buff * skb)1881 bool rtl_cmd_send_packet(struct ieee80211_hw *hw, struct sk_buff *skb)
1882 {
1883 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1884 	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1885 	struct rtl8192_tx_ring *ring;
1886 	struct rtl_tx_desc *pdesc;
1887 	unsigned long flags;
1888 	struct sk_buff *pskb = NULL;
1889 
1890 	ring = &rtlpci->tx_ring[BEACON_QUEUE];
1891 
1892 	spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
1893 	pskb = __skb_dequeue(&ring->queue);
1894 	if (pskb)
1895 		dev_kfree_skb_irq(pskb);
1896 
1897 	/*this is wrong, fill_tx_cmddesc needs update*/
1898 	pdesc = &ring->desc[0];
1899 
1900 	rtlpriv->cfg->ops->fill_tx_cmddesc(hw, (u8 *)pdesc, 1, 1, skb);
1901 
1902 	__skb_queue_tail(&ring->queue, skb);
1903 
1904 	spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1905 
1906 	rtlpriv->cfg->ops->tx_polling(hw, BEACON_QUEUE);
1907 
1908 	return true;
1909 }
1910 EXPORT_SYMBOL(rtl_cmd_send_packet);
1911 const struct ieee80211_ops rtl_ops = {
1912 	.start = rtl_op_start,
1913 	.stop = rtl_op_stop,
1914 	.tx = rtl_op_tx,
1915 	.add_interface = rtl_op_add_interface,
1916 	.remove_interface = rtl_op_remove_interface,
1917 	.change_interface = rtl_op_change_interface,
1918 #ifdef CONFIG_PM
1919 	.suspend = rtl_op_suspend,
1920 	.resume = rtl_op_resume,
1921 #endif
1922 	.config = rtl_op_config,
1923 	.configure_filter = rtl_op_configure_filter,
1924 	.set_key = rtl_op_set_key,
1925 	.conf_tx = rtl_op_conf_tx,
1926 	.bss_info_changed = rtl_op_bss_info_changed,
1927 	.get_tsf = rtl_op_get_tsf,
1928 	.set_tsf = rtl_op_set_tsf,
1929 	.reset_tsf = rtl_op_reset_tsf,
1930 	.sta_notify = rtl_op_sta_notify,
1931 	.ampdu_action = rtl_op_ampdu_action,
1932 	.sw_scan_start = rtl_op_sw_scan_start,
1933 	.sw_scan_complete = rtl_op_sw_scan_complete,
1934 	.rfkill_poll = rtl_op_rfkill_poll,
1935 	.sta_add = rtl_op_sta_add,
1936 	.sta_remove = rtl_op_sta_remove,
1937 	.flush = rtl_op_flush,
1938 	.set_tim = rtl_op_set_tim,
1939 };
1940 EXPORT_SYMBOL_GPL(rtl_ops);
1941 
rtl_btc_status_false(void)1942 bool rtl_btc_status_false(void)
1943 {
1944 	return false;
1945 }
1946 EXPORT_SYMBOL_GPL(rtl_btc_status_false);
1947 
rtl_dm_diginit(struct ieee80211_hw * hw,u32 cur_igvalue)1948 void rtl_dm_diginit(struct ieee80211_hw *hw, u32 cur_igvalue)
1949 {
1950 	struct rtl_priv *rtlpriv = rtl_priv(hw);
1951 	struct dig_t *dm_digtable = &rtlpriv->dm_digtable;
1952 
1953 	dm_digtable->dig_enable_flag = true;
1954 	dm_digtable->dig_ext_port_stage = DIG_EXT_PORT_STAGE_MAX;
1955 	dm_digtable->cur_igvalue = cur_igvalue;
1956 	dm_digtable->pre_igvalue = 0;
1957 	dm_digtable->cur_sta_cstate = DIG_STA_DISCONNECT;
1958 	dm_digtable->presta_cstate = DIG_STA_DISCONNECT;
1959 	dm_digtable->curmultista_cstate = DIG_MULTISTA_DISCONNECT;
1960 	dm_digtable->rssi_lowthresh = DM_DIG_THRESH_LOW;
1961 	dm_digtable->rssi_highthresh = DM_DIG_THRESH_HIGH;
1962 	dm_digtable->fa_lowthresh = DM_FALSEALARM_THRESH_LOW;
1963 	dm_digtable->fa_highthresh = DM_FALSEALARM_THRESH_HIGH;
1964 	dm_digtable->rx_gain_max = DM_DIG_MAX;
1965 	dm_digtable->rx_gain_min = DM_DIG_MIN;
1966 	dm_digtable->back_val = DM_DIG_BACKOFF_DEFAULT;
1967 	dm_digtable->back_range_max = DM_DIG_BACKOFF_MAX;
1968 	dm_digtable->back_range_min = DM_DIG_BACKOFF_MIN;
1969 	dm_digtable->pre_cck_cca_thres = 0xff;
1970 	dm_digtable->cur_cck_cca_thres = 0x83;
1971 	dm_digtable->forbidden_igi = DM_DIG_MIN;
1972 	dm_digtable->large_fa_hit = 0;
1973 	dm_digtable->recover_cnt = 0;
1974 	dm_digtable->dig_min_0 = 0x25;
1975 	dm_digtable->dig_min_1 = 0x25;
1976 	dm_digtable->media_connect_0 = false;
1977 	dm_digtable->media_connect_1 = false;
1978 	rtlpriv->dm.dm_initialgain_enable = true;
1979 	dm_digtable->bt30_cur_igi = 0x32;
1980 	dm_digtable->pre_cck_pd_state = CCK_PD_STAGE_MAX;
1981 	dm_digtable->cur_cck_pd_state = CCK_PD_STAGE_LOWRSSI;
1982 	dm_digtable->pre_cck_fa_state = 0;
1983 	dm_digtable->cur_cck_fa_state = 0;
1984 }
1985 EXPORT_SYMBOL(rtl_dm_diginit);
1986