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xtensa: support DMA buffers in high memory
[cris-mirror.git] / drivers / net / wireless / realtek / rtlwifi / rtl8192cu / trx.c
blobac4a82de40c7b0c2f1163f655b828042e44b8a62
1 /******************************************************************************
2 *
3 * Copyright(c) 2009-2012 Realtek Corporation. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * The full GNU General Public License is included in this distribution in the
15 * file called LICENSE.
16 *
17 * Contact Information:
18 * wlanfae <wlanfae@realtek.com>
19 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
20 * Hsinchu 300, Taiwan.
21 *
22 * Larry Finger <Larry.Finger@lwfinger.net>
23 *
24 *****************************************************************************/
25
26 #include "../wifi.h"
27 #include "../usb.h"
28 #include "../ps.h"
29 #include "../base.h"
30 #include "reg.h"
31 #include "def.h"
32 #include "phy.h"
33 #include "rf.h"
34 #include "dm.h"
35 #include "mac.h"
36 #include "trx.h"
37 #include "../rtl8192c/fw_common.h"
38
39 static int _ConfigVerTOutEP(struct ieee80211_hw *hw)
40 {
41 u8 ep_cfg, txqsele;
42 u8 ep_nums = 0;
43
44 struct rtl_priv *rtlpriv = rtl_priv(hw);
45 struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
46 struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
47
48 rtlusb->out_queue_sel = 0;
49 ep_cfg = rtl_read_byte(rtlpriv, REG_TEST_SIE_OPTIONAL);
50 ep_cfg = (ep_cfg & USB_TEST_EP_MASK) >> USB_TEST_EP_SHIFT;
51 switch (ep_cfg) {
52 case 0: /* 2 bulk OUT, 1 bulk IN */
53 case 3:
54 rtlusb->out_queue_sel = TX_SELE_HQ | TX_SELE_LQ;
55 ep_nums = 2;
56 break;
57 case 1: /* 1 bulk IN/OUT => map all endpoint to Low queue */
58 case 2: /* 1 bulk IN, 1 bulk OUT => map all endpoint to High queue */
59 txqsele = rtl_read_byte(rtlpriv, REG_TEST_USB_TXQS);
60 if (txqsele & 0x0F) /* /map all endpoint to High queue */
61 rtlusb->out_queue_sel = TX_SELE_HQ;
62 else if (txqsele&0xF0) /* map all endpoint to Low queue */
63 rtlusb->out_queue_sel = TX_SELE_LQ;
64 ep_nums = 1;
65 break;
66 default:
67 break;
68 }
69 return (rtlusb->out_ep_nums == ep_nums) ? 0 : -EINVAL;
70 }
71
72 static int _ConfigVerNOutEP(struct ieee80211_hw *hw)
73 {
74 u8 ep_cfg;
75 u8 ep_nums = 0;
76
77 struct rtl_priv *rtlpriv = rtl_priv(hw);
78 struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
79 struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
80
81 rtlusb->out_queue_sel = 0;
82 /* Normal and High queue */
83 ep_cfg = rtl_read_byte(rtlpriv, (REG_NORMAL_SIE_EP + 1));
84 if (ep_cfg & USB_NORMAL_SIE_EP_MASK) {
85 rtlusb->out_queue_sel |= TX_SELE_HQ;
86 ep_nums++;
87 }
88 if ((ep_cfg >> USB_NORMAL_SIE_EP_SHIFT) & USB_NORMAL_SIE_EP_MASK) {
89 rtlusb->out_queue_sel |= TX_SELE_NQ;
90 ep_nums++;
91 }
92 /* Low queue */
93 ep_cfg = rtl_read_byte(rtlpriv, (REG_NORMAL_SIE_EP + 2));
94 if (ep_cfg & USB_NORMAL_SIE_EP_MASK) {
95 rtlusb->out_queue_sel |= TX_SELE_LQ;
96 ep_nums++;
97 }
98 return (rtlusb->out_ep_nums == ep_nums) ? 0 : -EINVAL;
99 }
100
101 static void _TwoOutEpMapping(struct ieee80211_hw *hw, bool bIsChipB,
102 bool bwificfg, struct rtl_ep_map *ep_map)
103 {
104 struct rtl_priv *rtlpriv = rtl_priv(hw);
105
106 if (bwificfg) { /* for WMM */
107 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
108 "USB Chip-B & WMM Setting.....\n");
109 ep_map->ep_mapping[RTL_TXQ_BE] = 2;
110 ep_map->ep_mapping[RTL_TXQ_BK] = 3;
111 ep_map->ep_mapping[RTL_TXQ_VI] = 3;
112 ep_map->ep_mapping[RTL_TXQ_VO] = 2;
113 ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
114 ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
115 ep_map->ep_mapping[RTL_TXQ_HI] = 2;
116 } else { /* typical setting */
117 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
118 "USB typical Setting.....\n");
119 ep_map->ep_mapping[RTL_TXQ_BE] = 3;
120 ep_map->ep_mapping[RTL_TXQ_BK] = 3;
121 ep_map->ep_mapping[RTL_TXQ_VI] = 2;
122 ep_map->ep_mapping[RTL_TXQ_VO] = 2;
123 ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
124 ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
125 ep_map->ep_mapping[RTL_TXQ_HI] = 2;
126 }
127 }
128
129 static void _ThreeOutEpMapping(struct ieee80211_hw *hw, bool bwificfg,
130 struct rtl_ep_map *ep_map)
131 {
132 struct rtl_priv *rtlpriv = rtl_priv(hw);
133 if (bwificfg) { /* for WMM */
134 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
135 "USB 3EP Setting for WMM.....\n");
136 ep_map->ep_mapping[RTL_TXQ_BE] = 5;
137 ep_map->ep_mapping[RTL_TXQ_BK] = 3;
138 ep_map->ep_mapping[RTL_TXQ_VI] = 3;
139 ep_map->ep_mapping[RTL_TXQ_VO] = 2;
140 ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
141 ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
142 ep_map->ep_mapping[RTL_TXQ_HI] = 2;
143 } else { /* typical setting */
144 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
145 "USB 3EP Setting for typical.....\n");
146 ep_map->ep_mapping[RTL_TXQ_BE] = 5;
147 ep_map->ep_mapping[RTL_TXQ_BK] = 5;
148 ep_map->ep_mapping[RTL_TXQ_VI] = 3;
149 ep_map->ep_mapping[RTL_TXQ_VO] = 2;
150 ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
151 ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
152 ep_map->ep_mapping[RTL_TXQ_HI] = 2;
153 }
154 }
155
156 static void _OneOutEpMapping(struct ieee80211_hw *hw, struct rtl_ep_map *ep_map)
157 {
158 ep_map->ep_mapping[RTL_TXQ_BE] = 2;
159 ep_map->ep_mapping[RTL_TXQ_BK] = 2;
160 ep_map->ep_mapping[RTL_TXQ_VI] = 2;
161 ep_map->ep_mapping[RTL_TXQ_VO] = 2;
162 ep_map->ep_mapping[RTL_TXQ_MGT] = 2;
163 ep_map->ep_mapping[RTL_TXQ_BCN] = 2;
164 ep_map->ep_mapping[RTL_TXQ_HI] = 2;
165 }
166 static int _out_ep_mapping(struct ieee80211_hw *hw)
167 {
168 int err = 0;
169 bool bIsChipN, bwificfg = false;
170 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
171 struct rtl_usb_priv *usb_priv = rtl_usbpriv(hw);
172 struct rtl_usb *rtlusb = rtl_usbdev(usb_priv);
173 struct rtl_ep_map *ep_map = &(rtlusb->ep_map);
174
175 bIsChipN = IS_NORMAL_CHIP(rtlhal->version);
176 switch (rtlusb->out_ep_nums) {
177 case 2:
178 _TwoOutEpMapping(hw, bIsChipN, bwificfg, ep_map);
179 break;
180 case 3:
181 /* Test chip doesn't support three out EPs. */
182 if (!bIsChipN) {
183 err = -EINVAL;
184 goto err_out;
185 }
186 _ThreeOutEpMapping(hw, bIsChipN, ep_map);
187 break;
188 case 1:
189 _OneOutEpMapping(hw, ep_map);
190 break;
191 default:
192 err = -EINVAL;
193 break;
194 }
195 err_out:
196 return err;
197
198 }
199 /* endpoint mapping */
200 int rtl8192cu_endpoint_mapping(struct ieee80211_hw *hw)
201 {
202 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
203 int error = 0;
204 if (likely(IS_NORMAL_CHIP(rtlhal->version)))
205 error = _ConfigVerNOutEP(hw);
206 else
207 error = _ConfigVerTOutEP(hw);
208 if (error)
209 goto err_out;
210 error = _out_ep_mapping(hw);
211 if (error)
212 goto err_out;
213 err_out:
214 return error;
215 }
216
217 u16 rtl8192cu_mq_to_hwq(__le16 fc, u16 mac80211_queue_index)
218 {
219 u16 hw_queue_index;
220
221 if (unlikely(ieee80211_is_beacon(fc))) {
222 hw_queue_index = RTL_TXQ_BCN;
223 goto out;
224 }
225 if (ieee80211_is_mgmt(fc)) {
226 hw_queue_index = RTL_TXQ_MGT;
227 goto out;
228 }
229 switch (mac80211_queue_index) {
230 case 0:
231 hw_queue_index = RTL_TXQ_VO;
232 break;
233 case 1:
234 hw_queue_index = RTL_TXQ_VI;
235 break;
236 case 2:
237 hw_queue_index = RTL_TXQ_BE;
238 break;
239 case 3:
240 hw_queue_index = RTL_TXQ_BK;
241 break;
242 default:
243 hw_queue_index = RTL_TXQ_BE;
244 WARN_ONCE(true, "rtl8192cu: QSLT_BE queue, skb_queue:%d\n",
245 mac80211_queue_index);
246 break;
247 }
248 out:
249 return hw_queue_index;
250 }
251
252 static enum rtl_desc_qsel _rtl8192cu_mq_to_descq(struct ieee80211_hw *hw,
253 __le16 fc, u16 mac80211_queue_index)
254 {
255 enum rtl_desc_qsel qsel;
256 struct rtl_priv *rtlpriv = rtl_priv(hw);
257
258 if (unlikely(ieee80211_is_beacon(fc))) {
259 qsel = QSLT_BEACON;
260 goto out;
261 }
262 if (ieee80211_is_mgmt(fc)) {
263 qsel = QSLT_MGNT;
264 goto out;
265 }
266 switch (mac80211_queue_index) {
267 case 0: /* VO */
268 qsel = QSLT_VO;
269 RT_TRACE(rtlpriv, COMP_USB, DBG_DMESG,
270 "VO queue, set qsel = 0x%x\n", QSLT_VO);
271 break;
272 case 1: /* VI */
273 qsel = QSLT_VI;
274 RT_TRACE(rtlpriv, COMP_USB, DBG_DMESG,
275 "VI queue, set qsel = 0x%x\n", QSLT_VI);
276 break;
277 case 3: /* BK */
278 qsel = QSLT_BK;
279 RT_TRACE(rtlpriv, COMP_USB, DBG_DMESG,
280 "BK queue, set qsel = 0x%x\n", QSLT_BK);
281 break;
282 case 2: /* BE */
283 default:
284 qsel = QSLT_BE;
285 RT_TRACE(rtlpriv, COMP_USB, DBG_DMESG,
286 "BE queue, set qsel = 0x%x\n", QSLT_BE);
287 break;
288 }
289 out:
290 return qsel;
291 }
292
293 /* =============================================================== */
294
295 /*----------------------------------------------------------------------
296 *
297 * Rx handler
298 *
299 *---------------------------------------------------------------------- */
300 bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw,
301 struct rtl_stats *stats,
302 struct ieee80211_rx_status *rx_status,
303 u8 *pdesc, struct sk_buff *skb)
304 {
305 struct rx_fwinfo_92c *p_drvinfo;
306 struct rx_desc_92c *p_desc = (struct rx_desc_92c *)pdesc;
307 u32 phystatus = GET_RX_DESC_PHY_STATUS(pdesc);
308
309 stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
310 stats->rx_drvinfo_size = (u8)GET_RX_DESC_DRVINFO_SIZE(pdesc) *
311 RX_DRV_INFO_SIZE_UNIT;
312 stats->rx_bufshift = (u8) (GET_RX_DESC_SHIFT(pdesc) & 0x03);
313 stats->icv = (u16) GET_RX_DESC_ICV(pdesc);
314 stats->crc = (u16) GET_RX_DESC_CRC32(pdesc);
315 stats->hwerror = (stats->crc | stats->icv);
316 stats->decrypted = !GET_RX_DESC_SWDEC(pdesc);
317 stats->rate = (u8) GET_RX_DESC_RX_MCS(pdesc);
318 stats->shortpreamble = (u16) GET_RX_DESC_SPLCP(pdesc);
319 stats->isampdu = (bool) (GET_RX_DESC_PAGGR(pdesc) == 1);
320 stats->isfirst_ampdu = (bool)((GET_RX_DESC_PAGGR(pdesc) == 1)
321 && (GET_RX_DESC_FAGGR(pdesc) == 1));
322 stats->timestamp_low = GET_RX_DESC_TSFL(pdesc);
323 stats->rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(pdesc);
324 stats->is_ht = (bool)GET_RX_DESC_RX_HT(pdesc);
325 rx_status->freq = hw->conf.chandef.chan->center_freq;
326 rx_status->band = hw->conf.chandef.chan->band;
327 if (GET_RX_DESC_CRC32(pdesc))
328 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
329 if (!GET_RX_DESC_SWDEC(pdesc))
330 rx_status->flag |= RX_FLAG_DECRYPTED;
331 if (GET_RX_DESC_BW(pdesc))
332 rx_status->bw = RATE_INFO_BW_40;
333 if (GET_RX_DESC_RX_HT(pdesc))
334 rx_status->encoding = RX_ENC_HT;
335 rx_status->flag |= RX_FLAG_MACTIME_START;
336 if (stats->decrypted)
337 rx_status->flag |= RX_FLAG_DECRYPTED;
338 rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats->is_ht,
339 false, stats->rate);
340 rx_status->mactime = GET_RX_DESC_TSFL(pdesc);
341 if (phystatus) {
342 p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
343 stats->rx_bufshift);
344 rtl92c_translate_rx_signal_stuff(hw, skb, stats, p_desc,
345 p_drvinfo);
346 }
347 /*rx_status->qual = stats->signal; */
348 rx_status->signal = stats->recvsignalpower + 10;
349 return true;
350 }
351
352 #define RTL_RX_DRV_INFO_UNIT 8
353
354 static void _rtl_rx_process(struct ieee80211_hw *hw, struct sk_buff *skb)
355 {
356 struct ieee80211_rx_status *rx_status =
357 (struct ieee80211_rx_status *)IEEE80211_SKB_RXCB(skb);
358 u32 skb_len, pkt_len, drvinfo_len;
359 struct rtl_priv *rtlpriv = rtl_priv(hw);
360 u8 *rxdesc;
361 struct rtl_stats stats = {
362 .signal = 0,
363 .rate = 0,
364 };
365 struct rx_fwinfo_92c *p_drvinfo;
366 bool bv;
367 __le16 fc;
368 struct ieee80211_hdr *hdr;
369
370 memset(rx_status, 0, sizeof(*rx_status));
371 rxdesc = skb->data;
372 skb_len = skb->len;
373 drvinfo_len = (GET_RX_DESC_DRVINFO_SIZE(rxdesc) * RTL_RX_DRV_INFO_UNIT);
374 pkt_len = GET_RX_DESC_PKT_LEN(rxdesc);
375 /* TODO: Error recovery. drop this skb or something. */
376 WARN_ON(skb_len < (pkt_len + RTL_RX_DESC_SIZE + drvinfo_len));
377 stats.length = (u16) GET_RX_DESC_PKT_LEN(rxdesc);
378 stats.rx_drvinfo_size = (u8)GET_RX_DESC_DRVINFO_SIZE(rxdesc) *
379 RX_DRV_INFO_SIZE_UNIT;
380 stats.rx_bufshift = (u8) (GET_RX_DESC_SHIFT(rxdesc) & 0x03);
381 stats.icv = (u16) GET_RX_DESC_ICV(rxdesc);
382 stats.crc = (u16) GET_RX_DESC_CRC32(rxdesc);
383 stats.hwerror = (stats.crc | stats.icv);
384 stats.decrypted = !GET_RX_DESC_SWDEC(rxdesc);
385 stats.rate = (u8) GET_RX_DESC_RX_MCS(rxdesc);
386 stats.shortpreamble = (u16) GET_RX_DESC_SPLCP(rxdesc);
387 stats.isampdu = (bool) ((GET_RX_DESC_PAGGR(rxdesc) == 1)
388 && (GET_RX_DESC_FAGGR(rxdesc) == 1));
389 stats.timestamp_low = GET_RX_DESC_TSFL(rxdesc);
390 stats.rx_is40Mhzpacket = (bool) GET_RX_DESC_BW(rxdesc);
391 stats.is_ht = (bool)GET_RX_DESC_RX_HT(rxdesc);
392 /* TODO: is center_freq changed when doing scan? */
393 /* TODO: Shall we add protection or just skip those two step? */
394 rx_status->freq = hw->conf.chandef.chan->center_freq;
395 rx_status->band = hw->conf.chandef.chan->band;
396 if (GET_RX_DESC_CRC32(rxdesc))
397 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
398 if (!GET_RX_DESC_SWDEC(rxdesc))
399 rx_status->flag |= RX_FLAG_DECRYPTED;
400 if (GET_RX_DESC_BW(rxdesc))
401 rx_status->bw = RATE_INFO_BW_40;
402 if (GET_RX_DESC_RX_HT(rxdesc))
403 rx_status->encoding = RX_ENC_HT;
404 /* Data rate */
405 rx_status->rate_idx = rtlwifi_rate_mapping(hw, stats.is_ht,
406 false, stats.rate);
407 /* There is a phy status after this rx descriptor. */
408 if (GET_RX_DESC_PHY_STATUS(rxdesc)) {
409 p_drvinfo = (struct rx_fwinfo_92c *)(rxdesc + RTL_RX_DESC_SIZE);
410 rtl92c_translate_rx_signal_stuff(hw, skb, &stats,
411 (struct rx_desc_92c *)rxdesc, p_drvinfo);
412 }
413 skb_pull(skb, (drvinfo_len + RTL_RX_DESC_SIZE));
414 hdr = (struct ieee80211_hdr *)(skb->data);
415 fc = hdr->frame_control;
416 bv = ieee80211_is_probe_resp(fc);
417 if (bv)
418 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
419 "Got probe response frame\n");
420 if (ieee80211_is_beacon(fc))
421 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "Got beacon frame\n");
422 if (ieee80211_is_data(fc))
423 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "Got data frame\n");
424 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
425 "Fram: fc = 0x%X addr1 = 0x%02X:0x%02X:0x%02X:0x%02X:0x%02X:0x%02X\n",
426 fc,
427 (u32)hdr->addr1[0], (u32)hdr->addr1[1],
428 (u32)hdr->addr1[2], (u32)hdr->addr1[3],
429 (u32)hdr->addr1[4], (u32)hdr->addr1[5]);
430 memcpy(IEEE80211_SKB_RXCB(skb), rx_status, sizeof(*rx_status));
431 ieee80211_rx(hw, skb);
432 }
433
434 void rtl8192cu_rx_hdl(struct ieee80211_hw *hw, struct sk_buff * skb)
435 {
436 _rtl_rx_process(hw, skb);
437 }
438
439 /*----------------------------------------------------------------------
440 *
441 * Tx handler
442 *
443 *---------------------------------------------------------------------- */
444 void rtl8192c_tx_cleanup(struct ieee80211_hw *hw, struct sk_buff *skb)
445 {
446 }
447
448 int rtl8192c_tx_post_hdl(struct ieee80211_hw *hw, struct urb *urb,
449 struct sk_buff *skb)
450 {
451 return 0;
452 }
453
454 struct sk_buff *rtl8192c_tx_aggregate_hdl(struct ieee80211_hw *hw,
455 struct sk_buff_head *list)
456 {
457 return skb_dequeue(list);
458 }
459
460 /*======================================== trx ===============================*/
461
462 static void _rtl_fill_usb_tx_desc(u8 *txdesc)
463 {
464 SET_TX_DESC_OWN(txdesc, 1);
465 SET_TX_DESC_LAST_SEG(txdesc, 1);
466 SET_TX_DESC_FIRST_SEG(txdesc, 1);
467 }
468 /**
469 * For HW recovery information
470 */
471 static void _rtl_tx_desc_checksum(u8 *txdesc)
472 {
473 __le16 *ptr = (__le16 *)txdesc;
474 u16 checksum = 0;
475 u32 index;
476
477 /* Clear first */
478 SET_TX_DESC_TX_DESC_CHECKSUM(txdesc, 0);
479 for (index = 0; index < 16; index++)
480 checksum = checksum ^ le16_to_cpu(*(ptr + index));
481 SET_TX_DESC_TX_DESC_CHECKSUM(txdesc, checksum);
482 }
483
484 void rtl92cu_tx_fill_desc(struct ieee80211_hw *hw,
485 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
486 u8 *pbd_desc_tx, struct ieee80211_tx_info *info,
487 struct ieee80211_sta *sta,
488 struct sk_buff *skb,
489 u8 queue_index,
490 struct rtl_tcb_desc *tcb_desc)
491 {
492 struct rtl_priv *rtlpriv = rtl_priv(hw);
493 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
494 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
495 bool defaultadapter = true;
496 u8 *qc = ieee80211_get_qos_ctl(hdr);
497 u8 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
498 u16 seq_number;
499 __le16 fc = hdr->frame_control;
500 u8 rate_flag = info->control.rates[0].flags;
501 u16 pktlen = skb->len;
502 enum rtl_desc_qsel fw_qsel = _rtl8192cu_mq_to_descq(hw, fc,
503 skb_get_queue_mapping(skb));
504 u8 *txdesc;
505
506 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
507 rtl_get_tcb_desc(hw, info, sta, skb, tcb_desc);
508 txdesc = skb_push(skb, RTL_TX_HEADER_SIZE);
509 memset(txdesc, 0, RTL_TX_HEADER_SIZE);
510 SET_TX_DESC_PKT_SIZE(txdesc, pktlen);
511 SET_TX_DESC_LINIP(txdesc, 0);
512 SET_TX_DESC_PKT_OFFSET(txdesc, RTL_DUMMY_OFFSET);
513 SET_TX_DESC_OFFSET(txdesc, RTL_TX_HEADER_SIZE);
514 SET_TX_DESC_TX_RATE(txdesc, tcb_desc->hw_rate);
515 if (tcb_desc->use_shortgi || tcb_desc->use_shortpreamble)
516 SET_TX_DESC_DATA_SHORTGI(txdesc, 1);
517 if (mac->tids[tid].agg.agg_state == RTL_AGG_ON &&
518 info->flags & IEEE80211_TX_CTL_AMPDU) {
519 SET_TX_DESC_AGG_ENABLE(txdesc, 1);
520 SET_TX_DESC_MAX_AGG_NUM(txdesc, 0x14);
521 } else {
522 SET_TX_DESC_AGG_BREAK(txdesc, 1);
523 }
524 SET_TX_DESC_SEQ(txdesc, seq_number);
525 SET_TX_DESC_RTS_ENABLE(txdesc, ((tcb_desc->rts_enable &&
526 !tcb_desc->cts_enable) ? 1 : 0));
527 SET_TX_DESC_HW_RTS_ENABLE(txdesc, ((tcb_desc->rts_enable ||
528 tcb_desc->cts_enable) ? 1 : 0));
529 SET_TX_DESC_CTS2SELF(txdesc, ((tcb_desc->cts_enable) ? 1 : 0));
530 SET_TX_DESC_RTS_STBC(txdesc, ((tcb_desc->rts_stbc) ? 1 : 0));
531 SET_TX_DESC_RTS_RATE(txdesc, tcb_desc->rts_rate);
532 SET_TX_DESC_RTS_BW(txdesc, 0);
533 SET_TX_DESC_RTS_SC(txdesc, tcb_desc->rts_sc);
534 SET_TX_DESC_RTS_SHORT(txdesc,
535 ((tcb_desc->rts_rate <= DESC_RATE54M) ?
536 (tcb_desc->rts_use_shortpreamble ? 1 : 0)
537 : (tcb_desc->rts_use_shortgi ? 1 : 0)));
538 if (mac->bw_40) {
539 if (rate_flag & IEEE80211_TX_RC_DUP_DATA) {
540 SET_TX_DESC_DATA_BW(txdesc, 1);
541 SET_TX_DESC_DATA_SC(txdesc, 3);
542 } else if(rate_flag & IEEE80211_TX_RC_40_MHZ_WIDTH){
543 SET_TX_DESC_DATA_BW(txdesc, 1);
544 SET_TX_DESC_DATA_SC(txdesc, mac->cur_40_prime_sc);
545 } else {
546 SET_TX_DESC_DATA_BW(txdesc, 0);
547 SET_TX_DESC_DATA_SC(txdesc, 0);
548 }
549 } else {
550 SET_TX_DESC_DATA_BW(txdesc, 0);
551 SET_TX_DESC_DATA_SC(txdesc, 0);
552 }
553 rcu_read_lock();
554 sta = ieee80211_find_sta(mac->vif, mac->bssid);
555 if (sta) {
556 u8 ampdu_density = sta->ht_cap.ampdu_density;
557 SET_TX_DESC_AMPDU_DENSITY(txdesc, ampdu_density);
558 }
559 rcu_read_unlock();
560 if (info->control.hw_key) {
561 struct ieee80211_key_conf *keyconf = info->control.hw_key;
562 switch (keyconf->cipher) {
563 case WLAN_CIPHER_SUITE_WEP40:
564 case WLAN_CIPHER_SUITE_WEP104:
565 case WLAN_CIPHER_SUITE_TKIP:
566 SET_TX_DESC_SEC_TYPE(txdesc, 0x1);
567 break;
568 case WLAN_CIPHER_SUITE_CCMP:
569 SET_TX_DESC_SEC_TYPE(txdesc, 0x3);
570 break;
571 default:
572 SET_TX_DESC_SEC_TYPE(txdesc, 0x0);
573 break;
574 }
575 }
576 SET_TX_DESC_PKT_ID(txdesc, 0);
577 SET_TX_DESC_QUEUE_SEL(txdesc, fw_qsel);
578 SET_TX_DESC_DATA_RATE_FB_LIMIT(txdesc, 0x1F);
579 SET_TX_DESC_RTS_RATE_FB_LIMIT(txdesc, 0xF);
580 SET_TX_DESC_DISABLE_FB(txdesc, 0);
581 SET_TX_DESC_USE_RATE(txdesc, tcb_desc->use_driver_rate ? 1 : 0);
582 if (ieee80211_is_data_qos(fc)) {
583 if (mac->rdg_en) {
584 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
585 "Enable RDG function\n");
586 SET_TX_DESC_RDG_ENABLE(txdesc, 1);
587 SET_TX_DESC_HTC(txdesc, 1);
588 }
589 }
590 if (rtlpriv->dm.useramask) {
591 SET_TX_DESC_RATE_ID(txdesc, tcb_desc->ratr_index);
592 SET_TX_DESC_MACID(txdesc, tcb_desc->mac_id);
593 } else {
594 SET_TX_DESC_RATE_ID(txdesc, 0xC + tcb_desc->ratr_index);
595 SET_TX_DESC_MACID(txdesc, tcb_desc->ratr_index);
596 }
597 if ((!ieee80211_is_data_qos(fc)) && ppsc->leisure_ps &&
598 ppsc->fwctrl_lps) {
599 SET_TX_DESC_HWSEQ_EN(txdesc, 1);
600 SET_TX_DESC_PKT_ID(txdesc, 8);
601 if (!defaultadapter)
602 SET_TX_DESC_QOS(txdesc, 1);
603 }
604 if (ieee80211_has_morefrags(fc))
605 SET_TX_DESC_MORE_FRAG(txdesc, 1);
606 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) ||
607 is_broadcast_ether_addr(ieee80211_get_DA(hdr)))
608 SET_TX_DESC_BMC(txdesc, 1);
609 _rtl_fill_usb_tx_desc(txdesc);
610 _rtl_tx_desc_checksum(txdesc);
611 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "==>\n");
612 }
613
614 void rtl92cu_fill_fake_txdesc(struct ieee80211_hw *hw, u8 * pDesc,
615 u32 buffer_len, bool bIsPsPoll)
616 {
617 /* Clear all status */
618 memset(pDesc, 0, RTL_TX_HEADER_SIZE);
619 SET_TX_DESC_FIRST_SEG(pDesc, 1); /* bFirstSeg; */
620 SET_TX_DESC_LAST_SEG(pDesc, 1); /* bLastSeg; */
621 SET_TX_DESC_OFFSET(pDesc, RTL_TX_HEADER_SIZE); /* Offset = 32 */
622 SET_TX_DESC_PKT_SIZE(pDesc, buffer_len); /* Buffer size + command hdr */
623 SET_TX_DESC_QUEUE_SEL(pDesc, QSLT_MGNT); /* Fixed queue of Mgnt queue */
624 /* Set NAVUSEHDR to prevent Ps-poll AId filed to be changed to error
625 * vlaue by Hw. */
626 if (bIsPsPoll) {
627 SET_TX_DESC_NAV_USE_HDR(pDesc, 1);
628 } else {
629 SET_TX_DESC_HWSEQ_EN(pDesc, 1); /* Hw set sequence number */
630 SET_TX_DESC_PKT_ID(pDesc, 0x100); /* set bit3 to 1. */
631 }
632 SET_TX_DESC_USE_RATE(pDesc, 1); /* use data rate which is set by Sw */
633 SET_TX_DESC_OWN(pDesc, 1);
634 SET_TX_DESC_TX_RATE(pDesc, DESC_RATE1M);
635 _rtl_tx_desc_checksum(pDesc);
636 }
637
638 void rtl92cu_tx_fill_cmddesc(struct ieee80211_hw *hw,
639 u8 *pdesc, bool firstseg,
640 bool lastseg, struct sk_buff *skb)
641 {
642 struct rtl_priv *rtlpriv = rtl_priv(hw);
643 u8 fw_queue = QSLT_BEACON;
644 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
645 __le16 fc = hdr->frame_control;
646
647 memset((void *)pdesc, 0, RTL_TX_HEADER_SIZE);
648 if (firstseg)
649 SET_TX_DESC_OFFSET(pdesc, RTL_TX_HEADER_SIZE);
650 SET_TX_DESC_TX_RATE(pdesc, DESC_RATE1M);
651 SET_TX_DESC_SEQ(pdesc, 0);
652 SET_TX_DESC_LINIP(pdesc, 0);
653 SET_TX_DESC_QUEUE_SEL(pdesc, fw_queue);
654 SET_TX_DESC_FIRST_SEG(pdesc, 1);
655 SET_TX_DESC_LAST_SEG(pdesc, 1);
656 SET_TX_DESC_RATE_ID(pdesc, 7);
657 SET_TX_DESC_MACID(pdesc, 0);
658 SET_TX_DESC_OWN(pdesc, 1);
659 SET_TX_DESC_PKT_SIZE(pdesc, (u16)skb->len);
660 SET_TX_DESC_FIRST_SEG(pdesc, 1);
661 SET_TX_DESC_LAST_SEG(pdesc, 1);
662 SET_TX_DESC_OFFSET(pdesc, 0x20);
663 SET_TX_DESC_USE_RATE(pdesc, 1);
664 if (!ieee80211_is_data_qos(fc)) {
665 SET_TX_DESC_HWSEQ_EN(pdesc, 1);
666 SET_TX_DESC_PKT_ID(pdesc, 8);
667 }
668 RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD, "H2C Tx Cmd Content",
669 pdesc, RTL_TX_DESC_SIZE);
670 }
CRIS linux kernel tree