1 /******************************************************************************
3 * Copyright(c) 2009-2012 Realtek Corporation.
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.
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
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
21 * Contact Information:
22 * wlanfae <wlanfae@realtek.com>
23 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
24 * Hsinchu 300, Taiwan.
26 * Larry Finger <Larry.Finger@lwfinger.net>
28 *****************************************************************************/
41 static u8 _rtl92se_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 skb_queue)
43 __le16 fc = rtl_get_fc(skb);
45 if (unlikely(ieee80211_is_beacon(fc)))
47 if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
49 if (ieee80211_is_nullfunc(fc))
55 static void _rtl92se_query_rxphystatus(struct ieee80211_hw *hw,
56 struct rtl_stats *pstats, u8 *pdesc,
57 struct rx_fwinfo *p_drvinfo,
58 bool packet_match_bssid,
62 struct rtl_priv *rtlpriv = rtl_priv(hw);
63 struct phy_sts_cck_8192s_t *cck_buf;
64 struct rtl_ps_ctl *ppsc = rtl_psc(rtlpriv);
65 s8 rx_pwr_all = 0, rx_pwr[4];
66 u8 rf_rx_num = 0, evm, pwdb_all;
67 u8 i, max_spatial_stream;
68 u32 rssi, total_rssi = 0;
69 bool is_cck = pstats->is_cck;
71 pstats->packet_matchbssid = packet_match_bssid;
72 pstats->packet_toself = packet_toself;
73 pstats->packet_beacon = packet_beacon;
74 pstats->rx_mimo_sig_qual[0] = -1;
75 pstats->rx_mimo_sig_qual[1] = -1;
78 u8 report, cck_highpwr;
79 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo;
81 if (ppsc->rfpwr_state == ERFON)
82 cck_highpwr = (u8) rtl_get_bbreg(hw,
83 RFPGA0_XA_HSSIPARAMETER2,
89 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
90 report = cck_buf->cck_agc_rpt & 0xc0;
94 rx_pwr_all = -40 - (cck_agc_rpt & 0x3e);
97 rx_pwr_all = -20 - (cck_agc_rpt & 0x3e);
100 rx_pwr_all = -2 - (cck_agc_rpt & 0x3e);
103 rx_pwr_all = 14 - (cck_agc_rpt & 0x3e);
107 u8 cck_agc_rpt = cck_buf->cck_agc_rpt;
108 report = p_drvinfo->cfosho[0] & 0x60;
109 report = report >> 5;
112 rx_pwr_all = -40 - ((cck_agc_rpt & 0x1f) << 1);
115 rx_pwr_all = -20 - ((cck_agc_rpt & 0x1f) << 1);
118 rx_pwr_all = -2 - ((cck_agc_rpt & 0x1f) << 1);
121 rx_pwr_all = 14 - ((cck_agc_rpt & 0x1f) << 1);
126 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
128 /* CCK gain is smaller than OFDM/MCS gain, */
129 /* so we add gain diff by experiences, the val is 6 */
133 /* modify the offset to make the same gain index with OFDM. */
134 if (pwdb_all > 34 && pwdb_all <= 42)
136 else if (pwdb_all > 26 && pwdb_all <= 34)
138 else if (pwdb_all > 14 && pwdb_all <= 26)
140 else if (pwdb_all > 4 && pwdb_all <= 14)
143 pstats->rx_pwdb_all = pwdb_all;
144 pstats->recvsignalpower = rx_pwr_all;
146 if (packet_match_bssid) {
148 if (pstats->rx_pwdb_all > 40) {
151 sq = cck_buf->sq_rpt;
157 sq = ((64 - sq) * 100) / 44;
160 pstats->signalquality = sq;
161 pstats->rx_mimo_sig_qual[0] = sq;
162 pstats->rx_mimo_sig_qual[1] = -1;
165 rtlpriv->dm.rfpath_rxenable[0] =
166 rtlpriv->dm.rfpath_rxenable[1] = true;
167 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) {
168 if (rtlpriv->dm.rfpath_rxenable[i])
171 rx_pwr[i] = ((p_drvinfo->gain_trsw[i] &
173 rssi = rtl_query_rxpwrpercentage(rx_pwr[i]);
175 rtlpriv->stats.rx_snr_db[i] =
176 (long)(p_drvinfo->rxsnr[i] / 2);
178 if (packet_match_bssid)
179 pstats->rx_mimo_signalstrength[i] = (u8) rssi;
182 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110;
183 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all);
184 pstats->rx_pwdb_all = pwdb_all;
185 pstats->rxpower = rx_pwr_all;
186 pstats->recvsignalpower = rx_pwr_all;
188 if (pstats->is_ht && pstats->rate >= DESC92_RATEMCS8 &&
189 pstats->rate <= DESC92_RATEMCS15)
190 max_spatial_stream = 2;
192 max_spatial_stream = 1;
194 for (i = 0; i < max_spatial_stream; i++) {
195 evm = rtl_evm_db_to_percentage(p_drvinfo->rxevm[i]);
197 if (packet_match_bssid) {
199 pstats->signalquality = (u8)(evm &
201 pstats->rx_mimo_sig_qual[i] = (u8) (evm & 0xff);
207 pstats->signalstrength = (u8)(rtl_signal_scale_mapping(hw,
209 else if (rf_rx_num != 0)
210 pstats->signalstrength = (u8) (rtl_signal_scale_mapping(hw,
211 total_rssi /= rf_rx_num));
214 static void _rtl92se_translate_rx_signal_stuff(struct ieee80211_hw *hw,
215 struct sk_buff *skb, struct rtl_stats *pstats,
216 u8 *pdesc, struct rx_fwinfo *p_drvinfo)
218 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
219 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
221 struct ieee80211_hdr *hdr;
226 bool packet_matchbssid, packet_toself, packet_beacon = false;
228 tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift;
230 hdr = (struct ieee80211_hdr *)tmp_buf;
231 fc = hdr->frame_control;
232 cfc = le16_to_cpu(fc);
233 type = WLAN_FC_GET_TYPE(fc);
236 packet_matchbssid = ((IEEE80211_FTYPE_CTL != type) &&
237 ether_addr_equal(mac->bssid,
238 (cfc & IEEE80211_FCTL_TODS) ? hdr->addr1 :
239 (cfc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 :
241 (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv));
243 packet_toself = packet_matchbssid &&
244 ether_addr_equal(praddr, rtlefuse->dev_addr);
246 if (ieee80211_is_beacon(fc))
247 packet_beacon = true;
249 _rtl92se_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
250 packet_matchbssid, packet_toself, packet_beacon);
251 rtl_process_phyinfo(hw, tmp_buf, pstats);
254 bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
255 struct ieee80211_rx_status *rx_status, u8 *pdesc,
258 struct rx_fwinfo *p_drvinfo;
259 u32 phystatus = (u32)GET_RX_STATUS_DESC_PHY_STATUS(pdesc);
260 struct ieee80211_hdr *hdr;
261 bool first_ampdu = false;
263 stats->length = (u16)GET_RX_STATUS_DESC_PKT_LEN(pdesc);
264 stats->rx_drvinfo_size = (u8)GET_RX_STATUS_DESC_DRVINFO_SIZE(pdesc) * 8;
265 stats->rx_bufshift = (u8)(GET_RX_STATUS_DESC_SHIFT(pdesc) & 0x03);
266 stats->icv = (u16)GET_RX_STATUS_DESC_ICV(pdesc);
267 stats->crc = (u16)GET_RX_STATUS_DESC_CRC32(pdesc);
268 stats->hwerror = (u16)(stats->crc | stats->icv);
269 stats->decrypted = !GET_RX_STATUS_DESC_SWDEC(pdesc);
271 stats->rate = (u8)GET_RX_STATUS_DESC_RX_MCS(pdesc);
272 stats->shortpreamble = (u16)GET_RX_STATUS_DESC_SPLCP(pdesc);
273 stats->isampdu = (bool)(GET_RX_STATUS_DESC_PAGGR(pdesc) == 1);
274 stats->isfirst_ampdu = (bool) ((GET_RX_STATUS_DESC_PAGGR(pdesc) == 1)
275 && (GET_RX_STATUS_DESC_FAGGR(pdesc) == 1));
276 stats->timestamp_low = GET_RX_STATUS_DESC_TSFL(pdesc);
277 stats->rx_is40Mhzpacket = (bool)GET_RX_STATUS_DESC_BW(pdesc);
278 stats->is_ht = (bool)GET_RX_STATUS_DESC_RX_HT(pdesc);
279 stats->is_cck = SE_RX_HAL_IS_CCK_RATE(pdesc);
284 rx_status->freq = hw->conf.chandef.chan->center_freq;
285 rx_status->band = hw->conf.chandef.chan->band;
288 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
290 if (stats->rx_is40Mhzpacket)
291 rx_status->flag |= RX_FLAG_40MHZ;
294 rx_status->flag |= RX_FLAG_HT;
296 rx_status->flag |= RX_FLAG_MACTIME_START;
298 /* hw will set stats->decrypted true, if it finds the
299 * frame is open data frame or mgmt frame,
300 * hw will not decrypt robust managment frame
301 * for IEEE80211w but still set stats->decrypted
302 * true, so here we should set it back to undecrypted
303 * for IEEE80211w frame, and mac80211 sw will help
305 if (stats->decrypted) {
306 hdr = (struct ieee80211_hdr *)(skb->data +
307 stats->rx_drvinfo_size + stats->rx_bufshift);
310 /* during testing, hdr was NULL here */
313 if ((ieee80211_is_robust_mgmt_frame(hdr)) &&
314 (ieee80211_has_protected(hdr->frame_control)))
315 rx_status->flag &= ~RX_FLAG_DECRYPTED;
317 rx_status->flag |= RX_FLAG_DECRYPTED;
320 rx_status->rate_idx = rtlwifi_rate_mapping(hw,
321 stats->is_ht, stats->rate, first_ampdu);
323 rx_status->mactime = stats->timestamp_low;
325 p_drvinfo = (struct rx_fwinfo *)(skb->data +
327 _rtl92se_translate_rx_signal_stuff(hw, skb, stats, pdesc,
331 /*rx_status->qual = stats->signal; */
332 rx_status->signal = stats->rssi + 10;
333 /*rx_status->noise = -stats->noise; */
338 void rtl92se_tx_fill_desc(struct ieee80211_hw *hw,
339 struct ieee80211_hdr *hdr, u8 *pdesc_tx,
340 struct ieee80211_tx_info *info,
341 struct ieee80211_sta *sta,
343 u8 hw_queue, struct rtl_tcb_desc *ptcb_desc)
345 struct rtl_priv *rtlpriv = rtl_priv(hw);
346 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
347 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
348 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
349 u8 *pdesc = pdesc_tx;
351 __le16 fc = hdr->frame_control;
352 u8 reserved_macid = 0;
353 u8 fw_qsel = _rtl92se_map_hwqueue_to_fwqueue(skb, hw_queue);
354 bool firstseg = (!(hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG)));
355 bool lastseg = (!(hdr->frame_control &
356 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)));
357 dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
361 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
362 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
363 "DMA mapping error");
366 if (mac->opmode == NL80211_IFTYPE_STATION) {
368 } else if (mac->opmode == NL80211_IFTYPE_AP ||
369 mac->opmode == NL80211_IFTYPE_ADHOC) {
371 bw_40 = sta->bandwidth >= IEEE80211_STA_RX_BW_40;
374 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4;
376 rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc);
378 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_DESC_SIZE_RTL8192S);
380 if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) {
386 if (rtlpriv->dm.useramask) {
387 /* set txdesc macId */
388 if (ptcb_desc->mac_id < 32) {
389 SET_TX_DESC_MACID(pdesc, ptcb_desc->mac_id);
390 reserved_macid |= ptcb_desc->mac_id;
393 SET_TX_DESC_RSVD_MACID(pdesc, reserved_macid);
395 SET_TX_DESC_TXHT(pdesc, ((ptcb_desc->hw_rate >=
396 DESC92_RATEMCS0) ? 1 : 0));
398 if (rtlhal->version == VERSION_8192S_ACUT) {
399 if (ptcb_desc->hw_rate == DESC92_RATE1M ||
400 ptcb_desc->hw_rate == DESC92_RATE2M ||
401 ptcb_desc->hw_rate == DESC92_RATE5_5M ||
402 ptcb_desc->hw_rate == DESC92_RATE11M) {
403 ptcb_desc->hw_rate = DESC92_RATE12M;
407 SET_TX_DESC_TX_RATE(pdesc, ptcb_desc->hw_rate);
409 if (ptcb_desc->use_shortgi || ptcb_desc->use_shortpreamble)
410 SET_TX_DESC_TX_SHORT(pdesc, 0);
412 /* Aggregation related */
413 if (info->flags & IEEE80211_TX_CTL_AMPDU)
414 SET_TX_DESC_AGG_ENABLE(pdesc, 1);
416 /* For AMPDU, we must insert SSN into TX_DESC */
417 SET_TX_DESC_SEQ(pdesc, seq_number);
419 /* Protection mode related */
420 /* For 92S, if RTS/CTS are set, HW will execute RTS. */
421 /* We choose only one protection mode to execute */
422 SET_TX_DESC_RTS_ENABLE(pdesc, ((ptcb_desc->rts_enable &&
423 !ptcb_desc->cts_enable) ? 1 : 0));
424 SET_TX_DESC_CTS_ENABLE(pdesc, ((ptcb_desc->cts_enable) ?
426 SET_TX_DESC_RTS_STBC(pdesc, ((ptcb_desc->rts_stbc) ? 1 : 0));
428 SET_TX_DESC_RTS_RATE(pdesc, ptcb_desc->rts_rate);
429 SET_TX_DESC_RTS_BANDWIDTH(pdesc, 0);
430 SET_TX_DESC_RTS_SUB_CARRIER(pdesc, ptcb_desc->rts_sc);
431 SET_TX_DESC_RTS_SHORT(pdesc, ((ptcb_desc->rts_rate <=
433 (ptcb_desc->rts_use_shortpreamble ? 1 : 0)
434 : (ptcb_desc->rts_use_shortgi ? 1 : 0)));
437 /* Set Bandwidth and sub-channel settings. */
439 if (ptcb_desc->packet_bw) {
440 SET_TX_DESC_TX_BANDWIDTH(pdesc, 1);
441 /* use duplicated mode */
442 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
444 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
445 SET_TX_DESC_TX_SUB_CARRIER(pdesc,
446 mac->cur_40_prime_sc);
449 SET_TX_DESC_TX_BANDWIDTH(pdesc, 0);
450 SET_TX_DESC_TX_SUB_CARRIER(pdesc, 0);
453 /* 3 Fill necessary field in First Descriptor */
455 SET_TX_DESC_LINIP(pdesc, 0);
456 SET_TX_DESC_OFFSET(pdesc, 32);
457 SET_TX_DESC_PKT_SIZE(pdesc, (u16) skb->len);
460 SET_TX_DESC_RA_BRSR_ID(pdesc, ptcb_desc->ratr_index);
462 /* Fill security related */
463 if (info->control.hw_key) {
464 struct ieee80211_key_conf *keyconf;
466 keyconf = info->control.hw_key;
467 switch (keyconf->cipher) {
468 case WLAN_CIPHER_SUITE_WEP40:
469 case WLAN_CIPHER_SUITE_WEP104:
470 SET_TX_DESC_SEC_TYPE(pdesc, 0x1);
472 case WLAN_CIPHER_SUITE_TKIP:
473 SET_TX_DESC_SEC_TYPE(pdesc, 0x2);
475 case WLAN_CIPHER_SUITE_CCMP:
476 SET_TX_DESC_SEC_TYPE(pdesc, 0x3);
479 SET_TX_DESC_SEC_TYPE(pdesc, 0x0);
486 SET_TX_DESC_PACKET_ID(pdesc, 0);
488 /* We will assign magement queue to BK. */
489 SET_TX_DESC_QUEUE_SEL(pdesc, fw_qsel);
491 /* Alwasy enable all rate fallback range */
492 SET_TX_DESC_DATA_RATE_FB_LIMIT(pdesc, 0x1F);
494 /* Fix: I don't kown why hw use 6.5M to tx when set it */
495 SET_TX_DESC_USER_RATE(pdesc,
496 ptcb_desc->use_driver_rate ? 1 : 0);
498 /* Set NON_QOS bit. */
499 if (!ieee80211_is_data_qos(fc))
500 SET_TX_DESC_NON_QOS(pdesc, 1);
504 /* Fill fields that are required to be initialized
505 * in all of the descriptors */
507 SET_TX_DESC_FIRST_SEG(pdesc, (firstseg ? 1 : 0));
508 SET_TX_DESC_LAST_SEG(pdesc, (lastseg ? 1 : 0));
511 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16) skb->len);
514 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
516 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE, "\n");
519 void rtl92se_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
520 bool firstseg, bool lastseg, struct sk_buff *skb)
522 struct rtl_priv *rtlpriv = rtl_priv(hw);
523 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
524 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
525 struct rtl_tcb_desc *tcb_desc = (struct rtl_tcb_desc *)(skb->cb);
527 dma_addr_t mapping = pci_map_single(rtlpci->pdev, skb->data, skb->len,
530 if (pci_dma_mapping_error(rtlpci->pdev, mapping)) {
531 RT_TRACE(rtlpriv, COMP_SEND, DBG_TRACE,
532 "DMA mapping error");
535 /* Clear all status */
536 CLEAR_PCI_TX_DESC_CONTENT(pdesc, TX_CMDDESC_SIZE_RTL8192S);
538 /* This bit indicate this packet is used for FW download. */
539 if (tcb_desc->cmd_or_init == DESC_PACKET_TYPE_INIT) {
540 /* For firmware downlaod we only need to set LINIP */
541 SET_TX_DESC_LINIP(pdesc, tcb_desc->last_inipkt);
543 /* 92SE must set as 1 for firmware download HW DMA error */
544 SET_TX_DESC_FIRST_SEG(pdesc, 1);
545 SET_TX_DESC_LAST_SEG(pdesc, 1);
547 /* 92SE need not to set TX packet size when firmware download */
548 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
549 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
550 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
553 SET_TX_DESC_OWN(pdesc, 1);
554 } else { /* H2C Command Desc format (Host TXCMD) */
555 /* 92SE must set as 1 for firmware download HW DMA error */
556 SET_TX_DESC_FIRST_SEG(pdesc, 1);
557 SET_TX_DESC_LAST_SEG(pdesc, 1);
559 SET_TX_DESC_OFFSET(pdesc, 0x20);
561 /* Buffer size + command header */
562 SET_TX_DESC_PKT_SIZE(pdesc, (u16)(skb->len));
563 /* Fixed queue of H2C command */
564 SET_TX_DESC_QUEUE_SEL(pdesc, 0x13);
566 SET_BITS_TO_LE_4BYTE(skb->data, 24, 7, rtlhal->h2c_txcmd_seq);
568 SET_TX_DESC_TX_BUFFER_SIZE(pdesc, (u16)(skb->len));
569 SET_TX_DESC_TX_BUFFER_ADDRESS(pdesc, mapping);
572 SET_TX_DESC_OWN(pdesc, 1);
577 void rtl92se_set_desc(u8 *pdesc, bool istx, u8 desc_name, u8 *val)
583 SET_TX_DESC_OWN(pdesc, 1);
585 case HW_DESC_TX_NEXTDESC_ADDR:
586 SET_TX_DESC_NEXT_DESC_ADDRESS(pdesc, *(u32 *) val);
589 RT_ASSERT(false, "ERR txdesc :%d not process\n",
597 SET_RX_STATUS_DESC_OWN(pdesc, 1);
599 case HW_DESC_RXBUFF_ADDR:
600 SET_RX_STATUS__DESC_BUFF_ADDR(pdesc, *(u32 *) val);
602 case HW_DESC_RXPKT_LEN:
603 SET_RX_STATUS_DESC_PKT_LEN(pdesc, *(u32 *) val);
606 SET_RX_STATUS_DESC_EOR(pdesc, 1);
609 RT_ASSERT(false, "ERR rxdesc :%d not process\n",
616 u32 rtl92se_get_desc(u8 *desc, bool istx, u8 desc_name)
623 ret = GET_TX_DESC_OWN(desc);
625 case HW_DESC_TXBUFF_ADDR:
626 ret = GET_TX_DESC_TX_BUFFER_ADDRESS(desc);
629 RT_ASSERT(false, "ERR txdesc :%d not process\n",
636 ret = GET_RX_STATUS_DESC_OWN(desc);
638 case HW_DESC_RXPKT_LEN:
639 ret = GET_RX_STATUS_DESC_PKT_LEN(desc);
642 RT_ASSERT(false, "ERR rxdesc :%d not process\n",
650 void rtl92se_tx_polling(struct ieee80211_hw *hw, u8 hw_queue)
652 struct rtl_priv *rtlpriv = rtl_priv(hw);
653 rtl_write_word(rtlpriv, TP_POLL, BIT(0) << (hw_queue));