1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2009-2012  Realtek Corporation.*/
3 
4 #include "../wifi.h"
5 #include "../usb.h"
6 #include "../ps.h"
7 #include "../base.h"
8 #include "reg.h"
9 #include "def.h"
10 #include "phy.h"
11 #include "rf.h"
12 #include "dm.h"
13 #include "mac.h"
14 #include "trx.h"
15 #include "../rtl8192c/fw_common.h"
16 
17 static int configvertoutep(struct ieee80211_hw *hw)
18 {
19 	u8 ep_cfg, txqsele;
20 	u8 ep_nums = 0;
21 
22 	struct rtl_priv *rtlpriv = rtl_priv(hw);
23 	struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
24 	struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
25 
26 	rtlusb->out_queue_sel = 0;
27 	ep_cfg = rtl_read_byte(rtlpriv, REG_TEST_SIE_OPTIONAL);
28 	ep_cfg = (ep_cfg & USB_TEST_EP_MASK) >> USB_TEST_EP_SHIFT;
29 	switch (ep_cfg)	{
30 	case 0:		/* 2 bulk OUT, 1 bulk IN */
31 	case 3:
32 		rtlusb->out_queue_sel  = TX_SELE_HQ | TX_SELE_LQ;
33 		ep_nums = 2;
34 		break;
35 	case 1:	/* 1 bulk IN/OUT => map all endpoint to Low queue */
36 	case 2:	/* 1 bulk IN, 1 bulk OUT => map all endpoint to High queue */
37 		txqsele = rtl_read_byte(rtlpriv, REG_TEST_USB_TXQS);
38 		if (txqsele & 0x0F) /* /map all endpoint to High queue */
39 			rtlusb->out_queue_sel =  TX_SELE_HQ;
40 		else if (txqsele&0xF0) /* map all endpoint to Low queue */
41 			rtlusb->out_queue_sel =  TX_SELE_LQ;
42 		ep_nums = 1;
43 		break;
44 	default:
45 		break;
46 	}
47 	return (rtlusb->out_ep_nums == ep_nums) ? 0 : -EINVAL;
48 }
49 
50 static int configvernoutep(struct ieee80211_hw *hw)
51 {
52 	u8 ep_cfg;
53 	u8 ep_nums = 0;
54 
55 	struct rtl_priv *rtlpriv = rtl_priv(hw);
56 	struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
57 	struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
58 
59 	rtlusb->out_queue_sel = 0;
60 	/* Normal and High queue */
61 	ep_cfg =  rtl_read_byte(rtlpriv, (REG_NORMAL_SIE_EP + 1));
62 	if (ep_cfg & USB_NORMAL_SIE_EP_MASK) {
63 		rtlusb->out_queue_sel |= TX_SELE_HQ;
64 		ep_nums++;
65 	}
66 	if ((ep_cfg >> USB_NORMAL_SIE_EP_SHIFT) & USB_NORMAL_SIE_EP_MASK) {
67 		rtlusb->out_queue_sel |= TX_SELE_NQ;
68 		ep_nums++;
69 	}
70 	/* Low queue */
71 	ep_cfg =  rtl_read_byte(rtlpriv, (REG_NORMAL_SIE_EP + 2));
72 	if (ep_cfg & USB_NORMAL_SIE_EP_MASK) {
73 		rtlusb->out_queue_sel |= TX_SELE_LQ;
74 		ep_nums++;
75 	}
76 	return (rtlusb->out_ep_nums == ep_nums) ? 0 : -EINVAL;
77 }
78 
79 static void twooutepmapping(struct ieee80211_hw *hw, bool is_chip8,
80 			     bool  bwificfg, struct rtl_ep_map *ep_map)
81 {
82 	struct rtl_priv *rtlpriv = rtl_priv(hw);
83 
84 	if (bwificfg) { /* for WMM */
85 		rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
86 			"USB Chip-B & WMM Setting.....\n");
87 		ep_map->ep_mapping[RTL_TXQ_BE]	= 2;
88 		ep_map->ep_mapping[RTL_TXQ_BK]	= 3;
89 		ep_map->ep_mapping[RTL_TXQ_VI]	= 3;
90 		ep_map->ep_mapping[RTL_TXQ_VO] = 2;
91 		ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
92 		ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
93 		ep_map->ep_mapping[RTL_TXQ_HI]	= 2;
94 	} else { /* typical setting */
95 		rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
96 			"USB typical Setting.....\n");
97 		ep_map->ep_mapping[RTL_TXQ_BE]	= 3;
98 		ep_map->ep_mapping[RTL_TXQ_BK]	= 3;
99 		ep_map->ep_mapping[RTL_TXQ_VI]	= 2;
100 		ep_map->ep_mapping[RTL_TXQ_VO]	= 2;
101 		ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
102 		ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
103 		ep_map->ep_mapping[RTL_TXQ_HI]	= 2;
104 	}
105 }
106 
107 static void threeoutepmapping(struct ieee80211_hw *hw, bool  bwificfg,
108 			       struct rtl_ep_map *ep_map)
109 {
110 	struct rtl_priv *rtlpriv = rtl_priv(hw);
111 
112 	if (bwificfg) { /* for WMM */
113 		rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
114 			"USB 3EP Setting for WMM.....\n");
115 		ep_map->ep_mapping[RTL_TXQ_BE]	= 5;
116 		ep_map->ep_mapping[RTL_TXQ_BK]	= 3;
117 		ep_map->ep_mapping[RTL_TXQ_VI]	= 3;
118 		ep_map->ep_mapping[RTL_TXQ_VO]	= 2;
119 		ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
120 		ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
121 		ep_map->ep_mapping[RTL_TXQ_HI]	= 2;
122 	} else { /* typical setting */
123 		rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
124 			"USB 3EP Setting for typical.....\n");
125 		ep_map->ep_mapping[RTL_TXQ_BE]	= 5;
126 		ep_map->ep_mapping[RTL_TXQ_BK]	= 5;
127 		ep_map->ep_mapping[RTL_TXQ_VI]	= 3;
128 		ep_map->ep_mapping[RTL_TXQ_VO]	= 2;
129 		ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
130 		ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
131 		ep_map->ep_mapping[RTL_TXQ_HI]	= 2;
132 	}
133 }
134 
135 static void oneoutepmapping(struct ieee80211_hw *hw, struct rtl_ep_map *ep_map)
136 {
137 	ep_map->ep_mapping[RTL_TXQ_BE]	= 2;
138 	ep_map->ep_mapping[RTL_TXQ_BK]	= 2;
139 	ep_map->ep_mapping[RTL_TXQ_VI]	= 2;
140 	ep_map->ep_mapping[RTL_TXQ_VO] = 2;
141 	ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
142 	ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
143 	ep_map->ep_mapping[RTL_TXQ_HI]	= 2;
144 }
145 
146 static int _out_ep_mapping(struct ieee80211_hw *hw)
147 {
148 	int err = 0;
149 	bool ischipn, bwificfg = false;
150 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
151 	struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
152 	struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
153 	struct rtl_ep_map *ep_map = &(rtlusb->ep_map);
154 
155 	ischipn = IS_NORMAL_CHIP(rtlhal->version);
156 	switch (rtlusb->out_ep_nums) {
157 	case 2:
158 		twooutepmapping(hw, ischipn, bwificfg, ep_map);
159 		break;
160 	case 3:
161 		/* Test chip doesn't support three out EPs. */
162 		if (!ischipn) {
163 			err  =  -EINVAL;
164 			goto err_out;
165 		}
166 		threeoutepmapping(hw, ischipn, ep_map);
167 		break;
168 	case 1:
169 		oneoutepmapping(hw, ep_map);
170 		break;
171 	default:
172 		err  =  -EINVAL;
173 		break;
174 	}
175 err_out:
176 	return err;
177 
178 }
179 
180 /* endpoint mapping */
181 int  rtl8192cu_endpoint_mapping(struct ieee80211_hw *hw)
182 {
183 	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
184 	int error = 0;
185 
186 	if (likely(IS_NORMAL_CHIP(rtlhal->version)))
187 		error = configvernoutep(hw);
188 	else
189 		error = configvertoutep(hw);
190 	if (error)
191 		goto err_out;
192 	error = _out_ep_mapping(hw);
193 	if (error)
194 		goto err_out;
195 err_out:
196 	return error;
197 }
198 
199 u16 rtl8192cu_mq_to_hwq(__le16 fc, u16 mac80211_queue_index)
200 {
201 	u16 hw_queue_index;
202 
203 	if (unlikely(ieee80211_is_beacon(fc))) {
204 		hw_queue_index = RTL_TXQ_BCN;
205 		goto out;
206 	}
207 	if (ieee80211_is_mgmt(fc)) {
208 		hw_queue_index = RTL_TXQ_MGT;
209 		goto out;
210 	}
211 	switch (mac80211_queue_index) {
212 	case 0:
213 		hw_queue_index = RTL_TXQ_VO;
214 		break;
215 	case 1:
216 		hw_queue_index = RTL_TXQ_VI;
217 		break;
218 	case 2:
219 		hw_queue_index = RTL_TXQ_BE;
220 		break;
221 	case 3:
222 		hw_queue_index = RTL_TXQ_BK;
223 		break;
224 	default:
225 		hw_queue_index = RTL_TXQ_BE;
226 		WARN_ONCE(true, "rtl8192cu: QSLT_BE queue, skb_queue:%d\n",
227 			  mac80211_queue_index);
228 		break;
229 	}
230 out:
231 	return hw_queue_index;
232 }
233 
234 static enum rtl_desc_qsel _rtl8192cu_mq_to_descq(struct ieee80211_hw *hw,
235 					 __le16 fc, u16 mac80211_queue_index)
236 {
237 	enum rtl_desc_qsel qsel;
238 	struct rtl_priv *rtlpriv = rtl_priv(hw);
239 
240 	if (unlikely(ieee80211_is_beacon(fc))) {
241 		qsel = QSLT_BEACON;
242 		goto out;
243 	}
244 	if (ieee80211_is_mgmt(fc)) {
245 		qsel = QSLT_MGNT;
246 		goto out;
247 	}
248 	switch (mac80211_queue_index) {
249 	case 0:	/* VO */
250 		qsel = QSLT_VO;
251 		rtl_dbg(rtlpriv, COMP_USB, DBG_DMESG,
252 			"VO queue, set qsel = 0x%x\n", QSLT_VO);
253 		break;
254 	case 1:	/* VI */
255 		qsel = QSLT_VI;
256 		rtl_dbg(rtlpriv, COMP_USB, DBG_DMESG,
257 			"VI queue, set qsel = 0x%x\n", QSLT_VI);
258 		break;
259 	case 3:	/* BK */
260 		qsel = QSLT_BK;
261 		rtl_dbg(rtlpriv, COMP_USB, DBG_DMESG,
262 			"BK queue, set qsel = 0x%x\n", QSLT_BK);
263 		break;
264 	case 2:	/* BE */
265 	default:
266 		qsel = QSLT_BE;
267 		rtl_dbg(rtlpriv, COMP_USB, DBG_DMESG,
268 			"BE queue, set qsel = 0x%x\n", QSLT_BE);
269 		break;
270 	}
271 out:
272 	return qsel;
273 }
274 
275 /* =============================================================== */
276 
277 /*----------------------------------------------------------------------
278  *
279  *	Rx handler
280  *
281  *---------------------------------------------------------------------- */
282 bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw,
283 			   struct rtl_stats *stats,
284 			   struct ieee80211_rx_status *rx_status,
285 			   u8 *pdesc8, struct sk_buff *skb)
286 {
287 	struct rx_fwinfo_92c *p_drvinfo;
288 	struct rx_desc_92c *p_desc = (struct rx_desc_92c *)pdesc8;
289 	__le32 *pdesc = (__le32 *)pdesc8;
290 	u32 phystatus = get_rx_desc_phy_status(pdesc);
291 
292 	stats->length = (u16)get_rx_desc_pkt_len(pdesc);
293 	stats->rx_drvinfo_size = (u8)get_rx_desc_drvinfo_size(pdesc) *
294 				 RX_DRV_INFO_SIZE_UNIT;
295 	stats->rx_bufshift = (u8)(get_rx_desc_shift(pdesc) & 0x03);
296 	stats->icv = (u16)get_rx_desc_icv(pdesc);
297 	stats->crc = (u16)get_rx_desc_crc32(pdesc);
298 	stats->hwerror = (stats->crc | stats->icv);
299 	stats->decrypted = !get_rx_desc_swdec(pdesc);
300 	stats->rate = (u8)get_rx_desc_rx_mcs(pdesc);
301 	stats->shortpreamble = (u16)get_rx_desc_splcp(pdesc);
302 	stats->isampdu = (bool)(get_rx_desc_paggr(pdesc) == 1);
303 	stats->isfirst_ampdu = (bool)((get_rx_desc_paggr(pdesc) == 1) &&
304 				      (get_rx_desc_faggr(pdesc) == 1));
305 	stats->timestamp_low = get_rx_desc_tsfl(pdesc);
306 	stats->rx_is40mhzpacket = (bool)get_rx_desc_bw(pdesc);
307 	stats->is_ht = (bool)get_rx_desc_rx_ht(pdesc);
308 	rx_status->freq = hw->conf.chandef.chan->center_freq;
309 	rx_status->band = hw->conf.chandef.chan->band;
310 	if (get_rx_desc_crc32(pdesc))
311 		rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
312 	if (!get_rx_desc_swdec(pdesc))
313 		rx_status->flag |= RX_FLAG_DECRYPTED;
314 	if (get_rx_desc_bw(pdesc))
315 		rx_status->bw = RATE_INFO_BW_40;
316 	if (get_rx_desc_rx_ht(pdesc))
317 		rx_status->encoding = RX_ENC_HT;
318 	rx_status->flag |= RX_FLAG_MACTIME_START;
319 	if (stats->decrypted)
320 		rx_status->flag |= RX_FLAG_DECRYPTED;
321 	rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
322 						   false, stats->rate);
323 	rx_status->mactime = get_rx_desc_tsfl(pdesc);
324 	if (phystatus) {
325 		p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
326 						     stats->rx_bufshift);
327 		rtl92c_translate_rx_signal_stuff(hw, skb, stats, p_desc,
328 						 p_drvinfo);
329 	}
330 	/*rx_status->qual = stats->signal; */
331 	rx_status->signal = stats->recvsignalpower + 10;
332 	return true;
333 }
334 
335 #define RTL_RX_DRV_INFO_UNIT		8
336 
337 static void _rtl_rx_process(struct ieee80211_hw *hw, struct sk_buff *skb)
338 {
339 	struct ieee80211_rx_status *rx_status =
340 		 (struct ieee80211_rx_status *)IEEE80211_SKB_RXCB(skb);
341 	u32 skb_len, pkt_len, drvinfo_len;
342 	struct rtl_priv *rtlpriv = rtl_priv(hw);
343 	__le32 *rxdesc;
344 	struct rtl_stats stats = {
345 		.signal = 0,
346 		.rate = 0,
347 	};
348 	struct rx_fwinfo_92c *p_drvinfo;
349 	bool bv;
350 	__le16 fc;
351 	struct ieee80211_hdr *hdr;
352 
353 	memset(rx_status, 0, sizeof(*rx_status));
354 	rxdesc	= (__le32 *)skb->data;
355 	skb_len	= skb->len;
356 	drvinfo_len = (get_rx_desc_drvinfo_size(rxdesc) * RTL_RX_DRV_INFO_UNIT);
357 	pkt_len		= get_rx_desc_pkt_len(rxdesc);
358 	/* TODO: Error recovery. drop this skb or something. */
359 	WARN_ON(skb_len < (pkt_len + RTL_RX_DESC_SIZE + drvinfo_len));
360 	stats.length = (u16)get_rx_desc_pkt_len(rxdesc);
361 	stats.rx_drvinfo_size = (u8)get_rx_desc_drvinfo_size(rxdesc) *
362 				RX_DRV_INFO_SIZE_UNIT;
363 	stats.rx_bufshift = (u8)(get_rx_desc_shift(rxdesc) & 0x03);
364 	stats.icv = (u16)get_rx_desc_icv(rxdesc);
365 	stats.crc = (u16)get_rx_desc_crc32(rxdesc);
366 	stats.hwerror = (stats.crc | stats.icv);
367 	stats.decrypted = !get_rx_desc_swdec(rxdesc);
368 	stats.rate = (u8)get_rx_desc_rx_mcs(rxdesc);
369 	stats.shortpreamble = (u16)get_rx_desc_splcp(rxdesc);
370 	stats.isampdu = (bool)((get_rx_desc_paggr(rxdesc) == 1) &&
371 			       (get_rx_desc_faggr(rxdesc) == 1));
372 	stats.timestamp_low = get_rx_desc_tsfl(rxdesc);
373 	stats.rx_is40mhzpacket = (bool)get_rx_desc_bw(rxdesc);
374 	stats.is_ht = (bool)get_rx_desc_rx_ht(rxdesc);
375 	/* TODO: is center_freq changed when doing scan? */
376 	/* TODO: Shall we add protection or just skip those two step? */
377 	rx_status->freq = hw->conf.chandef.chan->center_freq;
378 	rx_status->band = hw->conf.chandef.chan->band;
379 	if (get_rx_desc_crc32(rxdesc))
380 		rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
381 	if (!get_rx_desc_swdec(rxdesc))
382 		rx_status->flag |= RX_FLAG_DECRYPTED;
383 	if (get_rx_desc_bw(rxdesc))
384 		rx_status->bw = RATE_INFO_BW_40;
385 	if (get_rx_desc_rx_ht(rxdesc))
386 		rx_status->encoding = RX_ENC_HT;
387 	/* Data rate */
388 	rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats.is_ht,
389 						   false, stats.rate);
390 	/*  There is a phy status after this rx descriptor. */
391 	if (get_rx_desc_phy_status(rxdesc)) {
392 		p_drvinfo = (struct rx_fwinfo_92c *)(rxdesc + RTL_RX_DESC_SIZE);
393 		rtl92c_translate_rx_signal_stuff(hw, skb, &stats,
394 				 (struct rx_desc_92c *)rxdesc, p_drvinfo);
395 	}
396 	skb_pull(skb, (drvinfo_len + RTL_RX_DESC_SIZE));
397 	hdr = (struct ieee80211_hdr *)(skb->data);
398 	fc = hdr->frame_control;
399 	bv = ieee80211_is_probe_resp(fc);
400 	if (bv)
401 		rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
402 			"Got probe response frame\n");
403 	if (ieee80211_is_beacon(fc))
404 		rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG, "Got beacon frame\n");
405 	if (ieee80211_is_data(fc))
406 		rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG, "Got data frame\n");
407 	rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG,
408 		"Fram: fc = 0x%X addr1 = 0x%02X:0x%02X:0x%02X:0x%02X:0x%02X:0x%02X\n",
409 		fc,
410 		(u32)hdr->addr1[0], (u32)hdr->addr1[1],
411 		(u32)hdr->addr1[2], (u32)hdr->addr1[3],
412 		(u32)hdr->addr1[4], (u32)hdr->addr1[5]);
413 	ieee80211_rx(hw, skb);
414 }
415 
416 void  rtl8192cu_rx_hdl(struct ieee80211_hw *hw, struct sk_buff * skb)
417 {
418 	_rtl_rx_process(hw, skb);
419 }
420 
421 /*----------------------------------------------------------------------
422  *
423  *	Tx handler
424  *
425  *---------------------------------------------------------------------- */
426 void rtl8192c_tx_cleanup(struct ieee80211_hw *hw, struct sk_buff  *skb)
427 {
428 }
429 
430 int rtl8192c_tx_post_hdl(struct ieee80211_hw *hw, struct urb *urb,
431 			 struct sk_buff *skb)
432 {
433 	return 0;
434 }
435 
436 struct sk_buff *rtl8192c_tx_aggregate_hdl(struct ieee80211_hw *hw,
437 					   struct sk_buff_head *list)
438 {
439 	return skb_dequeue(list);
440 }
441 
442 /*======================================== trx ===============================*/
443 
444 static void _rtl_fill_usb_tx_desc(__le32 *txdesc)
445 {
446 	set_tx_desc_own(txdesc, 1);
447 	set_tx_desc_last_seg(txdesc, 1);
448 	set_tx_desc_first_seg(txdesc, 1);
449 }
450 
451 /**
452  *	For HW recovery information
453  */
454 static void _rtl_tx_desc_checksum(__le32 *txdesc)
455 {
456 	__le16 *ptr = (__le16 *)txdesc;
457 	u16	checksum = 0;
458 	u32 index;
459 
460 	/* Clear first */
461 	set_tx_desc_tx_desc_checksum(txdesc, 0);
462 	for (index = 0; index < 16; index++)
463 		checksum = checksum ^ le16_to_cpu(*(ptr + index));
464 	set_tx_desc_tx_desc_checksum(txdesc, checksum);
465 }
466 
467 void rtl92cu_tx_fill_desc(struct ieee80211_hw *hw,
468 			  struct ieee80211_hdr *hdr, u8 *pdesc_tx,
469 			  u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
470 			  struct ieee80211_sta *sta,
471 			  struct sk_buff *skb,
472 			  u8 queue_index,
473 			  struct rtl_tcb_desc *tcb_desc)
474 {
475 	struct rtl_priv *rtlpriv = rtl_priv(hw);
476 	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
477 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
478 	bool defaultadapter = true;
479 	u8 *qc = ieee80211_get_qos_ctl(hdr);
480 	u8 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
481 	u16 seq_number;
482 	__le16 fc = hdr->frame_control;
483 	u8 rate_flag = info->control.rates[0].flags;
484 	u16 pktlen = skb->len;
485 	enum rtl_desc_qsel fw_qsel = _rtl8192cu_mq_to_descq(hw, fc,
486 						skb_get_queue_mapping(skb));
487 	u8 *txdesc8;
488 	__le32 *txdesc;
489 
490 	seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
491 	rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc);
492 	txdesc8 = skb_push(skb, RTL_TX_HEADER_SIZE);
493 	txdesc = (__le32 *)txdesc8;
494 	memset(txdesc, 0, RTL_TX_HEADER_SIZE);
495 	set_tx_desc_pkt_size(txdesc, pktlen);
496 	set_tx_desc_linip(txdesc, 0);
497 	set_tx_desc_pkt_offset(txdesc, RTL_DUMMY_OFFSET);
498 	set_tx_desc_offset(txdesc, RTL_TX_HEADER_SIZE);
499 	set_tx_desc_tx_rate(txdesc, tcb_desc->hw_rate);
500 	if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble)
501 		set_tx_desc_data_shortgi(txdesc, 1);
502 	if (mac->tids[tid].agg.agg_state == RTL_AGG_ON &&
503 		    info->flags & IEEE80211_TX_CTL_AMPDU) {
504 		set_tx_desc_agg_enable(txdesc, 1);
505 		set_tx_desc_max_agg_num(txdesc, 0x14);
506 	} else {
507 		set_tx_desc_agg_break(txdesc, 1);
508 	}
509 	set_tx_desc_seq(txdesc, seq_number);
510 	set_tx_desc_rts_enable(txdesc,
511 			       ((tcb_desc->rts_enable &&
512 				!tcb_desc->cts_enable) ? 1 : 0));
513 	set_tx_desc_hw_rts_enable(txdesc,
514 				  ((tcb_desc->rts_enable ||
515 				   tcb_desc->cts_enable) ? 1 : 0));
516 	set_tx_desc_cts2self(txdesc, ((tcb_desc->cts_enable) ? 1 : 0));
517 	set_tx_desc_rts_stbc(txdesc, ((tcb_desc->rts_stbc) ? 1 : 0));
518 	set_tx_desc_rts_rate(txdesc, tcb_desc->rts_rate);
519 	set_tx_desc_rts_bw(txdesc, 0);
520 	set_tx_desc_rts_sc(txdesc, tcb_desc->rts_sc);
521 	set_tx_desc_rts_short(txdesc,
522 			      ((tcb_desc->rts_rate <= DESC_RATE54M) ?
523 			       (tcb_desc->rts_use_shortpreamble ? 1 : 0)
524 			       : (tcb_desc->rts_use_shortgi ? 1 : 0)));
525 	if (mac->bw_40) {
526 		if (rate_flag & IEEE80211_TX_RC_DUP_DATA) {
527 			set_tx_desc_data_bw(txdesc, 1);
528 			set_tx_desc_data_sc(txdesc, 3);
529 		} else if(rate_flag & IEEE80211_TX_RC_40_MHZ_WIDTH){
530 			set_tx_desc_data_bw(txdesc, 1);
531 			set_tx_desc_data_sc(txdesc, mac->cur_40_prime_sc);
532 		} else {
533 			set_tx_desc_data_bw(txdesc, 0);
534 			set_tx_desc_data_sc(txdesc, 0);
535 		}
536 	} else {
537 		set_tx_desc_data_bw(txdesc, 0);
538 		set_tx_desc_data_sc(txdesc, 0);
539 	}
540 	rcu_read_lock();
541 	sta = ieee80211_find_sta(mac->vif, mac->bssid);
542 	if (sta) {
543 		u8 ampdu_density = sta->ht_cap.ampdu_density;
544 
545 		set_tx_desc_ampdu_density(txdesc, ampdu_density);
546 	}
547 	rcu_read_unlock();
548 	if (info->control.hw_key) {
549 		struct ieee80211_key_conf *keyconf = info->control.hw_key;
550 
551 		switch (keyconf->cipher) {
552 		case WLAN_CIPHER_SUITE_WEP40:
553 		case WLAN_CIPHER_SUITE_WEP104:
554 		case WLAN_CIPHER_SUITE_TKIP:
555 			set_tx_desc_sec_type(txdesc, 0x1);
556 			break;
557 		case WLAN_CIPHER_SUITE_CCMP:
558 			set_tx_desc_sec_type(txdesc, 0x3);
559 			break;
560 		default:
561 			set_tx_desc_sec_type(txdesc, 0x0);
562 			break;
563 		}
564 	}
565 	set_tx_desc_pkt_id(txdesc, 0);
566 	set_tx_desc_queue_sel(txdesc, fw_qsel);
567 	set_tx_desc_data_rate_fb_limit(txdesc, 0x1F);
568 	set_tx_desc_rts_rate_fb_limit(txdesc, 0xF);
569 	set_tx_desc_disable_fb(txdesc, 0);
570 	set_tx_desc_use_rate(txdesc, tcb_desc->use_driver_rate ? 1 : 0);
571 	if (ieee80211_is_data_qos(fc)) {
572 		if (mac->rdg_en) {
573 			rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
574 				"Enable RDG function\n");
575 			set_tx_desc_rdg_enable(txdesc, 1);
576 			set_tx_desc_htc(txdesc, 1);
577 		}
578 	}
579 	if (rtlpriv->dm.useramask) {
580 		set_tx_desc_rate_id(txdesc, tcb_desc->ratr_index);
581 		set_tx_desc_macid(txdesc, tcb_desc->mac_id);
582 	} else {
583 		set_tx_desc_rate_id(txdesc, 0xC + tcb_desc->ratr_index);
584 		set_tx_desc_macid(txdesc, tcb_desc->ratr_index);
585 	}
586 	if ((!ieee80211_is_data_qos(fc)) && ppsc->leisure_ps &&
587 	      ppsc->fwctrl_lps) {
588 		set_tx_desc_hwseq_en(txdesc, 1);
589 		set_tx_desc_pkt_id(txdesc, 8);
590 		if (!defaultadapter)
591 			set_tx_desc_qos(txdesc, 1);
592 	}
593 	if (ieee80211_has_morefrags(fc))
594 		set_tx_desc_more_frag(txdesc, 1);
595 	if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
596 	    is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
597 		set_tx_desc_bmc(txdesc, 1);
598 	_rtl_fill_usb_tx_desc(txdesc);
599 	_rtl_tx_desc_checksum(txdesc);
600 	rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, "==>\n");
601 }
602 
603 void rtl92cu_fill_fake_txdesc(struct ieee80211_hw *hw, u8 *pdesc8,
604 			      u32 buffer_len, bool is_pspoll)
605 {
606 	__le32 *pdesc = (__le32 *)pdesc8;
607 
608 	/* Clear all status */
609 	memset(pdesc, 0, RTL_TX_HEADER_SIZE);
610 	set_tx_desc_first_seg(pdesc, 1); /* bFirstSeg; */
611 	set_tx_desc_last_seg(pdesc, 1); /* bLastSeg; */
612 	set_tx_desc_offset(pdesc, RTL_TX_HEADER_SIZE); /* Offset = 32 */
613 	set_tx_desc_pkt_size(pdesc, buffer_len); /* Buffer size + command hdr */
614 	set_tx_desc_queue_sel(pdesc, QSLT_MGNT); /* Fixed queue of Mgnt queue */
615 	/* Set NAVUSEHDR to prevent Ps-poll AId filed to be changed to error
616 	 * vlaue by Hw. */
617 	if (is_pspoll) {
618 		set_tx_desc_nav_use_hdr(pdesc, 1);
619 	} else {
620 		set_tx_desc_hwseq_en(pdesc, 1); /* Hw set sequence number */
621 		set_tx_desc_pkt_id(pdesc, BIT(3)); /* set bit3 to 1. */
622 	}
623 	set_tx_desc_use_rate(pdesc, 1); /* use data rate which is set by Sw */
624 	set_tx_desc_own(pdesc, 1);
625 	set_tx_desc_tx_rate(pdesc, DESC_RATE1M);
626 	_rtl_tx_desc_checksum(pdesc);
627 }
628 
629 void rtl92cu_tx_fill_cmddesc(struct ieee80211_hw *hw,
630 			     u8 *pdesc8, bool firstseg,
631 			     bool lastseg, struct sk_buff *skb)
632 {
633 	struct rtl_priv *rtlpriv = rtl_priv(hw);
634 	u8 fw_queue = QSLT_BEACON;
635 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
636 	__le16 fc = hdr->frame_control;
637 	__le32 *pdesc = (__le32 *)pdesc8;
638 
639 	memset((void *)pdesc, 0, RTL_TX_HEADER_SIZE);
640 	if (firstseg)
641 		set_tx_desc_offset(pdesc, RTL_TX_HEADER_SIZE);
642 	set_tx_desc_tx_rate(pdesc, DESC_RATE1M);
643 	set_tx_desc_seq(pdesc, 0);
644 	set_tx_desc_linip(pdesc, 0);
645 	set_tx_desc_queue_sel(pdesc, fw_queue);
646 	set_tx_desc_first_seg(pdesc, 1);
647 	set_tx_desc_last_seg(pdesc, 1);
648 	set_tx_desc_rate_id(pdesc, 7);
649 	set_tx_desc_macid(pdesc, 0);
650 	set_tx_desc_own(pdesc, 1);
651 	set_tx_desc_pkt_size(pdesc, (u16)skb->len);
652 	set_tx_desc_first_seg(pdesc, 1);
653 	set_tx_desc_last_seg(pdesc, 1);
654 	set_tx_desc_offset(pdesc, 0x20);
655 	set_tx_desc_use_rate(pdesc, 1);
656 	if (!ieee80211_is_data_qos(fc)) {
657 		set_tx_desc_hwseq_en(pdesc, 1);
658 		set_tx_desc_pkt_id(pdesc, 8);
659 	}
660 	RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD, "H2C Tx Cmd Content",
661 		      pdesc, RTL_TX_DESC_SIZE);
662 }
663