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trx.c
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linux-6.19.14/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/trx.c
1// SPDX-License-Identifier: GPL-2.0 2/* Copyright(c) 2009-2014 Realtek Corporation.*/ 3 4#include "../wifi.h" 5#include "../pci.h" 6#include "../base.h" 7#include "../stats.h" 8#include "reg.h" 9#include "def.h" 10#include "phy.h" 11#include "trx.h" 12#include "led.h" 13#include "dm.h" 14#include "fw.h" 15 16static u8 _rtl92ee_map_hwqueue_to_fwqueue(struct sk_buff *skb, u8 hw_queue) 17{ 18 __le16 fc = rtl_get_fc(skb); 19 20 if (unlikely(ieee80211_is_beacon(fc))) 21 return QSLT_BEACON; 22 if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc)) 23 return QSLT_MGNT; 24 25 return skb->priority; 26} 27 28static void _rtl92ee_query_rxphystatus(struct ieee80211_hw *hw, 29 struct rtl_stats *pstatus, u8 *pdesc, 30 struct rx_fwinfo *p_drvinfo, 31 bool bpacket_match_bssid, 32 bool bpacket_toself, 33 bool packet_beacon) 34{ 35 struct rtl_priv *rtlpriv = rtl_priv(hw); 36 struct phy_status_rpt *p_phystrpt = (struct phy_status_rpt *)p_drvinfo; 37 s8 rx_pwr_all, rx_pwr[4]; 38 u8 rf_rx_num = 0, evm, pwdb_all; 39 u8 i, max_spatial_stream; 40 u32 rssi, total_rssi = 0; 41 bool is_cck = pstatus->is_cck; 42 u8 lan_idx, vga_idx; 43 44 /* Record it for next packet processing */ 45 pstatus->packet_matchbssid = bpacket_match_bssid; 46 pstatus->packet_toself = bpacket_toself; 47 pstatus->packet_beacon = packet_beacon; 48 pstatus->rx_mimo_signalquality[0] = -1; 49 pstatus->rx_mimo_signalquality[1] = -1; 50 51 if (is_cck) { 52 u8 cck_highpwr; 53 u8 cck_agc_rpt; 54 /* CCK Driver info Structure is not the same as OFDM packet. */ 55 cck_agc_rpt = p_phystrpt->cck_agc_rpt_ofdm_cfosho_a; 56 57 /* (1)Hardware does not provide RSSI for CCK 58 * (2)PWDB, Average PWDB calculated by 59 * hardware (for rate adaptive) 60 */ 61 cck_highpwr = (u8)rtl_get_bbreg(hw, RFPGA0_XA_HSSIPARAMETER2, 62 BIT(9)); 63 64 lan_idx = ((cck_agc_rpt & 0xE0) >> 5); 65 vga_idx = (cck_agc_rpt & 0x1f); 66 switch (lan_idx) { 67 case 7: /*VGA_idx = 27~2*/ 68 if (vga_idx <= 27) 69 rx_pwr_all = -100 + 2 * (27 - vga_idx); 70 else 71 rx_pwr_all = -100; 72 break; 73 case 6: /*VGA_idx = 2~0*/ 74 rx_pwr_all = -48 + 2 * (2 - vga_idx); 75 break; 76 case 5: /*VGA_idx = 7~5*/ 77 rx_pwr_all = -42 + 2 * (7 - vga_idx); 78 break; 79 case 4: /*VGA_idx = 7~4*/ 80 rx_pwr_all = -36 + 2 * (7 - vga_idx); 81 break; 82 case 3: /*VGA_idx = 7~0*/ 83 rx_pwr_all = -24 + 2 * (7 - vga_idx); 84 break; 85 case 2: /*VGA_idx = 5~0*/ 86 if (cck_highpwr) 87 rx_pwr_all = -12 + 2 * (5 - vga_idx); 88 else 89 rx_pwr_all = -6 + 2 * (5 - vga_idx); 90 break; 91 case 1: 92 rx_pwr_all = 8 - 2 * vga_idx; 93 break; 94 case 0: 95 rx_pwr_all = 14 - 2 * vga_idx; 96 break; 97 default: 98 rx_pwr_all = 0; 99 break; 100 } 101 rx_pwr_all += 16; 102 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all); 103 104 if (!cck_highpwr) { 105 if (pwdb_all >= 80) 106 pwdb_all = ((pwdb_all - 80) << 1) + 107 ((pwdb_all - 80) >> 1) + 80; 108 else if ((pwdb_all <= 78) && (pwdb_all >= 20)) 109 pwdb_all += 3; 110 if (pwdb_all > 100) 111 pwdb_all = 100; 112 } 113 114 pstatus->rx_pwdb_all = pwdb_all; 115 pstatus->bt_rx_rssi_percentage = pwdb_all; 116 pstatus->recvsignalpower = rx_pwr_all; 117 118 /* (3) Get Signal Quality (EVM) */ 119 if (bpacket_match_bssid) { 120 u8 sq, sq_rpt; 121 122 if (pstatus->rx_pwdb_all > 40) { 123 sq = 100; 124 } else { 125 sq_rpt = p_phystrpt->cck_sig_qual_ofdm_pwdb_all; 126 if (sq_rpt > 64) 127 sq = 0; 128 else if (sq_rpt < 20) 129 sq = 100; 130 else 131 sq = ((64 - sq_rpt) * 100) / 44; 132 } 133 134 pstatus->signalquality = sq; 135 pstatus->rx_mimo_signalquality[0] = sq; 136 pstatus->rx_mimo_signalquality[1] = -1; 137 } 138 } else { 139 /* (1)Get RSSI for HT rate */ 140 for (i = RF90_PATH_A; i < RF6052_MAX_PATH; i++) { 141 /* we will judge RF RX path now. */ 142 if (rtlpriv->dm.rfpath_rxenable[i]) 143 rf_rx_num++; 144 145 rx_pwr[i] = ((p_phystrpt->path_agc[i].gain & 0x3f) * 2) 146 - 110; 147 148 pstatus->rx_pwr[i] = rx_pwr[i]; 149 /* Translate DBM to percentage. */ 150 rssi = rtl_query_rxpwrpercentage(rx_pwr[i]); 151 total_rssi += rssi; 152 153 pstatus->rx_mimo_signalstrength[i] = (u8)rssi; 154 } 155 156 /* (2)PWDB, Average PWDB calculated by 157 * hardware (for rate adaptive) 158 */ 159 rx_pwr_all = ((p_phystrpt->cck_sig_qual_ofdm_pwdb_all >> 1) 160 & 0x7f) - 110; 161 162 pwdb_all = rtl_query_rxpwrpercentage(rx_pwr_all); 163 pstatus->rx_pwdb_all = pwdb_all; 164 pstatus->bt_rx_rssi_percentage = pwdb_all; 165 pstatus->rxpower = rx_pwr_all; 166 pstatus->recvsignalpower = rx_pwr_all; 167 168 /* (3)EVM of HT rate */ 169 if (pstatus->rate >= DESC_RATEMCS8 && 170 pstatus->rate <= DESC_RATEMCS15) 171 max_spatial_stream = 2; 172 else 173 max_spatial_stream = 1; 174 175 for (i = 0; i < max_spatial_stream; i++) { 176 evm = rtl_evm_db_to_percentage( 177 p_phystrpt->stream_rxevm[i]); 178 179 if (bpacket_match_bssid) { 180 /* Fill value in RFD, Get the first 181 * spatial stream only 182 */ 183 if (i == 0) 184 pstatus->signalquality = (u8)(evm & 185 0xff); 186 pstatus->rx_mimo_signalquality[i] = (u8)(evm & 187 0xff); 188 } 189 } 190 191 if (bpacket_match_bssid) { 192 for (i = RF90_PATH_A; i <= RF90_PATH_B; i++) 193 rtl_priv(hw)->dm.cfo_tail[i] = 194 (int)p_phystrpt->path_cfotail[i]; 195 196 if (rtl_priv(hw)->dm.packet_count == 0xffffffff) 197 rtl_priv(hw)->dm.packet_count = 0; 198 else 199 rtl_priv(hw)->dm.packet_count++; 200 } 201 } 202 203 /* UI BSS List signal strength(in percentage), 204 * make it good looking, from 0~100. 205 */ 206 if (is_cck) 207 pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw, 208 pwdb_all)); 209 else if (rf_rx_num != 0) 210 pstatus->signalstrength = (u8)(rtl_signal_scale_mapping(hw, 211 total_rssi /= rf_rx_num)); 212} 213 214static void _rtl92ee_translate_rx_signal_stuff(struct ieee80211_hw *hw, 215 struct sk_buff *skb, 216 struct rtl_stats *pstatus, 217 u8 *pdesc, 218 struct rx_fwinfo *p_drvinfo) 219{ 220 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 221 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 222 struct ieee80211_hdr *hdr; 223 u8 *tmp_buf; 224 u8 *praddr; 225 u8 *psaddr; 226 __le16 fc; 227 bool packet_matchbssid, packet_toself, packet_beacon; 228 229 tmp_buf = skb->data + pstatus->rx_drvinfo_size + 230 pstatus->rx_bufshift + 24; 231 232 hdr = (struct ieee80211_hdr *)tmp_buf; 233 fc = hdr->frame_control; 234 praddr = hdr->addr1; 235 psaddr = ieee80211_get_SA(hdr); 236 ether_addr_copy(pstatus->psaddr, psaddr); 237 238 packet_matchbssid = (!ieee80211_is_ctl(fc) && 239 (ether_addr_equal(mac->bssid, 240 ieee80211_has_tods(fc) ? 241 hdr->addr1 : 242 ieee80211_has_fromds(fc) ? 243 hdr->addr2 : hdr->addr3)) && 244 (!pstatus->hwerror) && (!pstatus->crc) && 245 (!pstatus->icv)); 246 247 packet_toself = packet_matchbssid && 248 (ether_addr_equal(praddr, rtlefuse->dev_addr)); 249 250 if (ieee80211_is_beacon(fc)) 251 packet_beacon = true; 252 else 253 packet_beacon = false; 254 255 if (packet_beacon && packet_matchbssid) 256 rtl_priv(hw)->dm.dbginfo.num_qry_beacon_pkt++; 257 258 if (packet_matchbssid && ieee80211_is_data_qos(hdr->frame_control) && 259 !is_multicast_ether_addr(ieee80211_get_DA(hdr))) { 260 struct ieee80211_qos_hdr *hdr_qos = 261 (struct ieee80211_qos_hdr *)tmp_buf; 262 u16 tid = le16_to_cpu(hdr_qos->qos_ctrl) & 0xf; 263 264 if (tid != 0 && tid != 3) 265 rtl_priv(hw)->dm.dbginfo.num_non_be_pkt++; 266 } 267 268 _rtl92ee_query_rxphystatus(hw, pstatus, pdesc, p_drvinfo, 269 packet_matchbssid, packet_toself, 270 packet_beacon); 271 rtl_process_phyinfo(hw, tmp_buf, pstatus); 272} 273 274static void _rtl92ee_insert_emcontent(struct rtl_tcb_desc *ptcb_desc, 275 u8 *virtualaddress8) 276{ 277 u32 dwtmp; 278 __le32 *virtualaddress = (__le32 *)virtualaddress8; 279 280 memset(virtualaddress, 0, 8); 281 282 set_earlymode_pktnum(virtualaddress, ptcb_desc->empkt_num); 283 if (ptcb_desc->empkt_num == 1) { 284 dwtmp = ptcb_desc->empkt_len[0]; 285 } else { 286 dwtmp = ptcb_desc->empkt_len[0]; 287 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4; 288 dwtmp += ptcb_desc->empkt_len[1]; 289 } 290 set_earlymode_len0(virtualaddress, dwtmp); 291 292 if (ptcb_desc->empkt_num <= 3) { 293 dwtmp = ptcb_desc->empkt_len[2]; 294 } else { 295 dwtmp = ptcb_desc->empkt_len[2]; 296 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4; 297 dwtmp += ptcb_desc->empkt_len[3]; 298 } 299 set_earlymode_len1(virtualaddress, dwtmp); 300 if (ptcb_desc->empkt_num <= 5) { 301 dwtmp = ptcb_desc->empkt_len[4]; 302 } else { 303 dwtmp = ptcb_desc->empkt_len[4]; 304 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4; 305 dwtmp += ptcb_desc->empkt_len[5]; 306 } 307 set_earlymode_len2_1(virtualaddress, dwtmp & 0xF); 308 set_earlymode_len2_2(virtualaddress, dwtmp >> 4); 309 if (ptcb_desc->empkt_num <= 7) { 310 dwtmp = ptcb_desc->empkt_len[6]; 311 } else { 312 dwtmp = ptcb_desc->empkt_len[6]; 313 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4; 314 dwtmp += ptcb_desc->empkt_len[7]; 315 } 316 set_earlymode_len3(virtualaddress, dwtmp); 317 if (ptcb_desc->empkt_num <= 9) { 318 dwtmp = ptcb_desc->empkt_len[8]; 319 } else { 320 dwtmp = ptcb_desc->empkt_len[8]; 321 dwtmp += ((dwtmp % 4) ? (4 - dwtmp % 4) : 0) + 4; 322 dwtmp += ptcb_desc->empkt_len[9]; 323 } 324 set_earlymode_len4(virtualaddress, dwtmp); 325} 326 327bool rtl92ee_rx_query_desc(struct ieee80211_hw *hw, 328 struct rtl_stats *status, 329 struct ieee80211_rx_status *rx_status, 330 u8 *pdesc8, struct sk_buff *skb) 331{ 332 struct rtl_priv *rtlpriv = rtl_priv(hw); 333 struct rx_fwinfo *p_drvinfo; 334 struct ieee80211_hdr *hdr; 335 __le32 *pdesc = (__le32 *)pdesc8; 336 u32 phystatus = get_rx_desc_physt(pdesc); 337 u8 wake_match; 338 339 if (get_rx_status_desc_rpt_sel(pdesc) == 0) 340 status->packet_report_type = NORMAL_RX; 341 else 342 status->packet_report_type = C2H_PACKET; 343 status->length = (u16)get_rx_desc_pkt_len(pdesc); 344 status->rx_drvinfo_size = (u8)get_rx_desc_drv_info_size(pdesc) * 345 RX_DRV_INFO_SIZE_UNIT; 346 status->rx_bufshift = (u8)(get_rx_desc_shift(pdesc) & 0x03); 347 status->icv = (u16)get_rx_desc_icv(pdesc); 348 status->crc = (u16)get_rx_desc_crc32(pdesc); 349 status->hwerror = (status->crc | status->icv); 350 status->decrypted = !get_rx_desc_swdec(pdesc); 351 status->rate = (u8)get_rx_desc_rxmcs(pdesc); 352 status->isampdu = (bool)(get_rx_desc_paggr(pdesc) == 1); 353 status->timestamp_low = get_rx_desc_tsfl(pdesc); 354 status->is_cck = RTL92EE_RX_HAL_IS_CCK_RATE(status->rate); 355 356 status->macid = get_rx_desc_macid(pdesc); 357 if (get_rx_status_desc_pattern_match(pdesc)) 358 wake_match = BIT(2); 359 else if (get_rx_status_desc_magic_match(pdesc)) 360 wake_match = BIT(1); 361 else if (get_rx_status_desc_unicast_match(pdesc)) 362 wake_match = BIT(0); 363 else 364 wake_match = 0; 365 if (wake_match) 366 rtl_dbg(rtlpriv, COMP_RXDESC, DBG_LOUD, 367 "GGGGGGGGGGGGGet Wakeup Packet!! WakeMatch=%d\n", 368 wake_match); 369 rx_status->freq = hw->conf.chandef.chan->center_freq; 370 rx_status->band = hw->conf.chandef.chan->band; 371 372 hdr = (struct ieee80211_hdr *)(skb->data + status->rx_drvinfo_size + 373 status->rx_bufshift + 24); 374 375 if (status->crc) 376 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; 377 378 if (status->rx_is40mhzpacket) 379 rx_status->bw = RATE_INFO_BW_40; 380 381 if (status->is_ht) 382 rx_status->encoding = RX_ENC_HT; 383 384 rx_status->flag |= RX_FLAG_MACTIME_START; 385 386 /* hw will set status->decrypted true, if it finds the 387 * frame is open data frame or mgmt frame. 388 * So hw will not decryption robust managment frame 389 * for IEEE80211w but still set status->decrypted 390 * true, so here we should set it back to undecrypted 391 * for IEEE80211w frame, and mac80211 sw will help 392 * to decrypt it 393 */ 394 if (status->decrypted) { 395 if ((!_ieee80211_is_robust_mgmt_frame(hdr)) && 396 (ieee80211_has_protected(hdr->frame_control))) 397 rx_status->flag |= RX_FLAG_DECRYPTED; 398 else 399 rx_status->flag &= ~RX_FLAG_DECRYPTED; 400 } 401 402 /* rate_idx: index of data rate into band's 403 * supported rates or MCS index if HT rates 404 * are use (RX_FLAG_HT) 405 * Notice: this is diff with windows define 406 */ 407 rx_status->rate_idx = rtlwifi_rate_mapping(hw, status->is_ht, 408 false, status->rate); 409 410 rx_status->mactime = status->timestamp_low; 411 if (phystatus) { 412 p_drvinfo = (struct rx_fwinfo *)(skb->data + 413 status->rx_bufshift + 24); 414 415 _rtl92ee_translate_rx_signal_stuff(hw, skb, status, pdesc8, 416 p_drvinfo); 417 } 418 rx_status->signal = status->recvsignalpower + 10; 419 if (status->packet_report_type == TX_REPORT2) { 420 status->macid_valid_entry[0] = 421 get_rx_rpt2_desc_macid_valid_1(pdesc); 422 status->macid_valid_entry[1] = 423 get_rx_rpt2_desc_macid_valid_2(pdesc); 424 } 425 return true; 426} 427 428/*in Windows, this == Rx_92EE_Interrupt*/ 429void rtl92ee_rx_check_dma_ok(struct ieee80211_hw *hw, u8 *header_desc8, 430 u8 queue_index) 431{ 432 u8 first_seg = 0; 433 u8 last_seg = 0; 434 u16 total_len = 0; 435 u16 read_cnt = 0; 436 __le32 *header_desc = (__le32 *)header_desc8; 437 438 if (header_desc == NULL) 439 return; 440 441 total_len = (u16)get_rx_buffer_desc_total_length(header_desc); 442 443 first_seg = (u8)get_rx_buffer_desc_fs(header_desc); 444 445 last_seg = (u8)get_rx_buffer_desc_ls(header_desc); 446 447 while (total_len == 0 && first_seg == 0 && last_seg == 0) { 448 read_cnt++; 449 total_len = (u16)get_rx_buffer_desc_total_length(header_desc); 450 first_seg = (u8)get_rx_buffer_desc_fs(header_desc); 451 last_seg = (u8)get_rx_buffer_desc_ls(header_desc); 452 453 if (read_cnt > 20) 454 break; 455 } 456} 457 458u16 rtl92ee_rx_desc_buff_remained_cnt(struct ieee80211_hw *hw, u8 queue_index) 459{ 460 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 461 struct rtl_priv *rtlpriv = rtl_priv(hw); 462 u16 read_point, write_point, remind_cnt; 463 u32 tmp_4byte; 464 static bool start_rx; 465 466 tmp_4byte = rtl_read_dword(rtlpriv, REG_RXQ_TXBD_IDX); 467 read_point = (u16)((tmp_4byte>>16) & 0x7ff); 468 write_point = (u16)(tmp_4byte & 0x7ff); 469 470 if (write_point != rtlpci->rx_ring[queue_index].next_rx_rp) { 471 rtl_dbg(rtlpriv, COMP_RXDESC, DBG_DMESG, 472 "!!!write point is 0x%x, reg 0x3B4 value is 0x%x\n", 473 write_point, tmp_4byte); 474 tmp_4byte = rtl_read_dword(rtlpriv, REG_RXQ_TXBD_IDX); 475 read_point = (u16)((tmp_4byte>>16) & 0x7ff); 476 write_point = (u16)(tmp_4byte & 0x7ff); 477 } 478 479 if (read_point > 0) 480 start_rx = true; 481 if (!start_rx) 482 return 0; 483 484 remind_cnt = calc_fifo_space(read_point, write_point, 485 RTL_PCI_MAX_RX_COUNT); 486 487 if (remind_cnt == 0) 488 return 0; 489 490 rtlpci->rx_ring[queue_index].next_rx_rp = write_point; 491 492 return remind_cnt; 493} 494 495static u16 get_desc_addr_fr_q_idx(u16 queue_index) 496{ 497 u16 desc_address; 498 499 switch (queue_index) { 500 case BK_QUEUE: 501 desc_address = REG_BKQ_TXBD_IDX; 502 break; 503 case BE_QUEUE: 504 desc_address = REG_BEQ_TXBD_IDX; 505 break; 506 case VI_QUEUE: 507 desc_address = REG_VIQ_TXBD_IDX; 508 break; 509 case VO_QUEUE: 510 desc_address = REG_VOQ_TXBD_IDX; 511 break; 512 case BEACON_QUEUE: 513 desc_address = REG_BEQ_TXBD_IDX; 514 break; 515 case TXCMD_QUEUE: 516 desc_address = REG_BEQ_TXBD_IDX; 517 break; 518 case MGNT_QUEUE: 519 desc_address = REG_MGQ_TXBD_IDX; 520 break; 521 case HIGH_QUEUE: 522 desc_address = REG_HI0Q_TXBD_IDX; 523 break; 524 case HCCA_QUEUE: 525 desc_address = REG_BEQ_TXBD_IDX; 526 break; 527 default: 528 desc_address = REG_BEQ_TXBD_IDX; 529 break; 530 } 531 return desc_address; 532} 533 534u16 rtl92ee_get_available_desc(struct ieee80211_hw *hw, u8 q_idx) 535{ 536 struct rtl_priv *rtlpriv = rtl_priv(hw); 537 u16 point_diff = 0; 538 u16 current_tx_read_point, current_tx_write_point; 539 u32 tmp_4byte; 540 541 tmp_4byte = rtl_read_dword(rtlpriv, 542 get_desc_addr_fr_q_idx(q_idx)); 543 current_tx_read_point = (u16)((tmp_4byte >> 16) & 0x0fff); 544 current_tx_write_point = (u16)((tmp_4byte) & 0x0fff); 545 546 point_diff = calc_fifo_space(current_tx_read_point, 547 current_tx_write_point, 548 TX_DESC_NUM_92E); 549 550 return point_diff; 551} 552 553static void rtl92ee_pre_fill_tx_bd_desc(struct ieee80211_hw *hw, 554 u8 *tx_bd_desc8, u8 *desc8, 555 u8 queue_index, 556 struct sk_buff *skb, 557 dma_addr_t addr) 558{ 559 struct rtl_priv *rtlpriv = rtl_priv(hw); 560 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 561 u32 pkt_len = skb->len; 562 u16 desc_size = 40; /*tx desc size*/ 563 u32 psblen = 0; 564 u16 tx_page_size; 565 u32 total_packet_size; 566 u16 current_bd_desc; 567 u8 i; 568 u16 real_desc_size = 0x28; 569 u16 append_early_mode_size = 0; 570 u8 segmentnum = 1 << (RTL8192EE_SEG_NUM + 1); 571 dma_addr_t desc_dma_addr; 572 bool dma64 = rtlpriv->cfg->mod_params->dma64; 573 __le32 *desc = (__le32 *)desc8; 574 __le32 *tx_bd_desc = (__le32 *)tx_bd_desc8; 575 576 tx_page_size = 2; 577 current_bd_desc = rtlpci->tx_ring[queue_index].cur_tx_wp; 578 579 total_packet_size = desc_size+pkt_len; 580 581 if (rtlpriv->rtlhal.earlymode_enable) { 582 if (queue_index < BEACON_QUEUE) { 583 append_early_mode_size = 8; 584 total_packet_size += append_early_mode_size; 585 } 586 } 587 588 if (tx_page_size > 0) { 589 psblen = (pkt_len + real_desc_size + append_early_mode_size) / 590 (tx_page_size * 128); 591 592 if (psblen * (tx_page_size * 128) < total_packet_size) 593 psblen += 1; 594 } 595 596 /* tx desc addr */ 597 desc_dma_addr = rtlpci->tx_ring[queue_index].dma + 598 (current_bd_desc * TX_DESC_SIZE); 599 600 /* Reset */ 601 set_tx_buff_desc_len_0(tx_bd_desc, 0); 602 set_tx_buff_desc_psb(tx_bd_desc, 0); 603 set_tx_buff_desc_own(tx_bd_desc, 0); 604 605 for (i = 1; i < segmentnum; i++) { 606 set_txbuffer_desc_len_with_offset(tx_bd_desc, i, 0); 607 set_txbuffer_desc_amsdu_with_offset(tx_bd_desc, i, 0); 608 set_txbuffer_desc_add_low_with_offset(tx_bd_desc, i, 0); 609 set_txbuffer_desc_add_high_with_offset(tx_bd_desc, i, 0, dma64); 610 } 611 612 /* Clear all status */ 613 clear_pci_tx_desc_content(desc, TX_DESC_SIZE); 614 615 if (rtlpriv->rtlhal.earlymode_enable) { 616 if (queue_index < BEACON_QUEUE) { 617 /* This if needs braces */ 618 set_tx_buff_desc_len_0(tx_bd_desc, desc_size + 8); 619 } else { 620 set_tx_buff_desc_len_0(tx_bd_desc, desc_size); 621 } 622 } else { 623 set_tx_buff_desc_len_0(tx_bd_desc, desc_size); 624 } 625 set_tx_buff_desc_psb(tx_bd_desc, psblen); 626 set_tx_buff_desc_addr_low_0(tx_bd_desc, desc_dma_addr); 627 set_tx_buff_desc_addr_high_0(tx_bd_desc, ((u64)desc_dma_addr >> 32), 628 dma64); 629 630 set_txbuffer_desc_len_with_offset(tx_bd_desc, 1, pkt_len); 631 /* don't using extendsion mode. */ 632 set_txbuffer_desc_amsdu_with_offset(tx_bd_desc, 1, 0); 633 set_txbuffer_desc_add_low_with_offset(tx_bd_desc, 1, addr); 634 set_txbuffer_desc_add_high_with_offset(tx_bd_desc, 1, 635 ((u64)addr >> 32), dma64); 636 637 set_tx_desc_pkt_size(desc, (u16)(pkt_len)); 638 set_tx_desc_tx_buffer_size(desc, (u16)(pkt_len)); 639} 640 641void rtl92ee_tx_fill_desc(struct ieee80211_hw *hw, 642 struct ieee80211_hdr *hdr, u8 *pdesc8, 643 u8 *pbd_desc_tx, 644 struct ieee80211_tx_info *info, 645 struct ieee80211_sta *sta, 646 struct sk_buff *skb, 647 u8 hw_queue, struct rtl_tcb_desc *ptcb_desc) 648{ 649 struct rtl_priv *rtlpriv = rtl_priv(hw); 650 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 651 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 652 struct rtl_hal *rtlhal = rtl_hal(rtlpriv); 653 struct rtlwifi_tx_info *tx_info = rtl_tx_skb_cb_info(skb); 654 u16 seq_number; 655 __le16 fc = hdr->frame_control; 656 u8 fw_qsel = _rtl92ee_map_hwqueue_to_fwqueue(skb, hw_queue); 657 bool firstseg = ((hdr->seq_ctrl & 658 cpu_to_le16(IEEE80211_SCTL_FRAG)) == 0); 659 bool lastseg = ((hdr->frame_control & 660 cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) == 0); 661 dma_addr_t mapping; 662 u8 bw_40 = 0; 663 __le32 *pdesc = (__le32 *)pdesc8; 664 665 if (mac->opmode == NL80211_IFTYPE_STATION) { 666 bw_40 = mac->bw_40; 667 } else if (mac->opmode == NL80211_IFTYPE_AP || 668 mac->opmode == NL80211_IFTYPE_ADHOC) { 669 if (sta) 670 bw_40 = sta->deflink.ht_cap.cap & 671 IEEE80211_HT_CAP_SUP_WIDTH_20_40; 672 } 673 seq_number = (le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4; 674 rtl_get_tcb_desc(hw, info, sta, skb, ptcb_desc); 675 /* reserve 8 byte for AMPDU early mode */ 676 if (rtlhal->earlymode_enable) { 677 skb_push(skb, EM_HDR_LEN); 678 memset(skb->data, 0, EM_HDR_LEN); 679 } 680 mapping = dma_map_single(&rtlpci->pdev->dev, skb->data, skb->len, 681 DMA_TO_DEVICE); 682 if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) { 683 rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, 684 "DMA mapping error\n"); 685 return; 686 } 687 688 if (pbd_desc_tx != NULL) 689 rtl92ee_pre_fill_tx_bd_desc(hw, pbd_desc_tx, pdesc8, hw_queue, 690 skb, mapping); 691 692 if (ieee80211_is_nullfunc(fc) || ieee80211_is_ctl(fc)) { 693 firstseg = true; 694 lastseg = true; 695 } 696 if (firstseg) { 697 if (rtlhal->earlymode_enable) { 698 set_tx_desc_pkt_offset(pdesc, 1); 699 set_tx_desc_offset(pdesc, 700 USB_HWDESC_HEADER_LEN + EM_HDR_LEN); 701 if (ptcb_desc->empkt_num) { 702 rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, 703 "Insert 8 byte.pTcb->EMPktNum:%d\n", 704 ptcb_desc->empkt_num); 705 _rtl92ee_insert_emcontent(ptcb_desc, 706 (u8 *)(skb->data)); 707 } 708 } else { 709 set_tx_desc_offset(pdesc, USB_HWDESC_HEADER_LEN); 710 } 711 712 713 set_tx_desc_tx_rate(pdesc, ptcb_desc->hw_rate); 714 715 if (ieee80211_is_mgmt(fc)) { 716 ptcb_desc->use_driver_rate = true; 717 } else { 718 if (rtlpriv->ra.is_special_data) { 719 ptcb_desc->use_driver_rate = true; 720 set_tx_desc_tx_rate(pdesc, DESC_RATE11M); 721 } else { 722 ptcb_desc->use_driver_rate = false; 723 } 724 } 725 726 if (info->flags & IEEE80211_TX_CTL_AMPDU) { 727 set_tx_desc_agg_enable(pdesc, 1); 728 set_tx_desc_max_agg_num(pdesc, 0x14); 729 } 730 set_tx_desc_seq(pdesc, seq_number); 731 set_tx_desc_rts_enable(pdesc, 732 ((ptcb_desc->rts_enable && 733 !ptcb_desc->cts_enable) ? 1 : 0)); 734 set_tx_desc_hw_rts_enable(pdesc, 0); 735 set_tx_desc_cts2self(pdesc, 736 ((ptcb_desc->cts_enable) ? 1 : 0)); 737 738 set_tx_desc_rts_rate(pdesc, ptcb_desc->rts_rate); 739 set_tx_desc_rts_sc(pdesc, ptcb_desc->rts_sc); 740 set_tx_desc_rts_short(pdesc, 741 ((ptcb_desc->rts_rate <= DESC_RATE54M) ? 742 (ptcb_desc->rts_use_shortpreamble ? 1 : 0) : 743 (ptcb_desc->rts_use_shortgi ? 1 : 0))); 744 745 if (ptcb_desc->tx_enable_sw_calc_duration) 746 set_tx_desc_nav_use_hdr(pdesc, 1); 747 748 if (bw_40) { 749 if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) { 750 set_tx_desc_data_bw(pdesc, 1); 751 set_tx_desc_tx_sub_carrier(pdesc, 3); 752 } else { 753 set_tx_desc_data_bw(pdesc, 0); 754 set_tx_desc_tx_sub_carrier(pdesc, 755 mac->cur_40_prime_sc); 756 } 757 } else { 758 set_tx_desc_data_bw(pdesc, 0); 759 set_tx_desc_tx_sub_carrier(pdesc, 0); 760 } 761 762 set_tx_desc_linip(pdesc, 0); 763 if (sta) { 764 u8 ampdu_density = sta->deflink.ht_cap.ampdu_density; 765 766 set_tx_desc_ampdu_density(pdesc, ampdu_density); 767 } 768 if (info->control.hw_key) { 769 struct ieee80211_key_conf *key = info->control.hw_key; 770 771 switch (key->cipher) { 772 case WLAN_CIPHER_SUITE_WEP40: 773 case WLAN_CIPHER_SUITE_WEP104: 774 case WLAN_CIPHER_SUITE_TKIP: 775 set_tx_desc_sec_type(pdesc, 0x1); 776 break; 777 case WLAN_CIPHER_SUITE_CCMP: 778 set_tx_desc_sec_type(pdesc, 0x3); 779 break; 780 default: 781 set_tx_desc_sec_type(pdesc, 0x0); 782 break; 783 } 784 } 785 786 set_tx_desc_queue_sel(pdesc, fw_qsel); 787 set_tx_desc_data_rate_fb_limit(pdesc, 0x1F); 788 set_tx_desc_rts_rate_fb_limit(pdesc, 0xF); 789 set_tx_desc_disable_fb(pdesc, 790 ptcb_desc->disable_ratefallback ? 1 : 0); 791 set_tx_desc_use_rate(pdesc, ptcb_desc->use_driver_rate ? 1 : 0); 792 793 /*set_tx_desc_pwr_status(pdesc, pwr_status);*/ 794 /* Set TxRate and RTSRate in TxDesc */ 795 /* This prevent Tx initial rate of new-coming packets */ 796 /* from being overwritten by retried packet rate.*/ 797 if (!ptcb_desc->use_driver_rate) { 798 /*set_tx_desc_rts_rate(pdesc, 0x08); */ 799 /* set_tx_desc_tx_rate(pdesc, 0x0b); */ 800 } 801 if (ieee80211_is_data_qos(fc)) { 802 if (mac->rdg_en) { 803 rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, 804 "Enable RDG function.\n"); 805 set_tx_desc_rdg_enable(pdesc, 1); 806 set_tx_desc_htc(pdesc, 1); 807 } 808 } 809 /* tx report */ 810 rtl_set_tx_report(ptcb_desc, pdesc8, hw, tx_info); 811 } 812 813 set_tx_desc_first_seg(pdesc, (firstseg ? 1 : 0)); 814 set_tx_desc_last_seg(pdesc, (lastseg ? 1 : 0)); 815 set_tx_desc_tx_buffer_address(pdesc, mapping); 816 if (rtlpriv->dm.useramask) { 817 set_tx_desc_rate_id(pdesc, ptcb_desc->ratr_index); 818 set_tx_desc_macid(pdesc, ptcb_desc->mac_id); 819 } else { 820 set_tx_desc_rate_id(pdesc, 0xC + ptcb_desc->ratr_index); 821 set_tx_desc_macid(pdesc, ptcb_desc->ratr_index); 822 } 823 824 set_tx_desc_more_frag(pdesc, (lastseg ? 0 : 1)); 825 if (is_multicast_ether_addr(ieee80211_get_DA(hdr)) || 826 is_broadcast_ether_addr(ieee80211_get_DA(hdr))) { 827 set_tx_desc_bmc(pdesc, 1); 828 } 829 rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, "\n"); 830} 831 832void rtl92ee_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc8, 833 struct sk_buff *skb) 834{ 835 struct rtl_priv *rtlpriv = rtl_priv(hw); 836 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 837 u8 fw_queue = QSLT_BEACON; 838 dma_addr_t mapping = dma_map_single(&rtlpci->pdev->dev, skb->data, 839 skb->len, DMA_TO_DEVICE); 840 u8 txdesc_len = 40; 841 __le32 *pdesc = (__le32 *)pdesc8; 842 843 if (dma_mapping_error(&rtlpci->pdev->dev, mapping)) { 844 rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE, 845 "DMA mapping error\n"); 846 return; 847 } 848 clear_pci_tx_desc_content(pdesc, txdesc_len); 849 850 set_tx_desc_offset(pdesc, txdesc_len); 851 852 set_tx_desc_tx_rate(pdesc, DESC_RATE1M); 853 854 set_tx_desc_seq(pdesc, 0); 855 856 set_tx_desc_linip(pdesc, 0); 857 858 set_tx_desc_queue_sel(pdesc, fw_queue); 859 860 set_tx_desc_first_seg(pdesc, 1); 861 set_tx_desc_last_seg(pdesc, 1); 862 863 set_tx_desc_tx_buffer_size(pdesc, (u16)(skb->len)); 864 865 set_tx_desc_tx_buffer_address(pdesc, mapping); 866 867 set_tx_desc_rate_id(pdesc, 7); 868 set_tx_desc_macid(pdesc, 0); 869 870 set_tx_desc_own(pdesc, 1); 871 872 set_tx_desc_pkt_size(pdesc, (u16)(skb->len)); 873 874 set_tx_desc_first_seg(pdesc, 1); 875 set_tx_desc_last_seg(pdesc, 1); 876 877 set_tx_desc_offset(pdesc, 40); 878 879 set_tx_desc_use_rate(pdesc, 1); 880 881 RT_PRINT_DATA(rtlpriv, COMP_CMD, DBG_LOUD, 882 "H2C Tx Cmd Content\n", pdesc, txdesc_len); 883} 884 885void rtl92ee_set_desc(struct ieee80211_hw *hw, u8 *pdesc8, bool istx, 886 u8 desc_name, u8 *val) 887{ 888 struct rtl_priv *rtlpriv = rtl_priv(hw); 889 u8 q_idx = *val; 890 bool dma64 = rtlpriv->cfg->mod_params->dma64; 891 __le32 *pdesc = (__le32 *)pdesc8; 892 893 if (istx) { 894 switch (desc_name) { 895 case HW_DESC_TX_NEXTDESC_ADDR: 896 set_tx_desc_next_desc_address(pdesc, *(u32 *)val); 897 break; 898 case HW_DESC_OWN:{ 899 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 900 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[q_idx]; 901 u16 max_tx_desc = ring->entries; 902 903 if (q_idx == BEACON_QUEUE) { 904 ring->cur_tx_wp = 0; 905 ring->cur_tx_rp = 0; 906 set_tx_buff_desc_own(pdesc, 1); 907 return; 908 } 909 910 /* make sure tx desc is available by caller */ 911 ring->cur_tx_wp = ((ring->cur_tx_wp + 1) % max_tx_desc); 912 913 rtl_write_word(rtlpriv, 914 get_desc_addr_fr_q_idx(q_idx), 915 ring->cur_tx_wp); 916 } 917 break; 918 } 919 } else { 920 switch (desc_name) { 921 case HW_DESC_RX_PREPARE: 922 set_rx_buffer_desc_ls(pdesc, 0); 923 set_rx_buffer_desc_fs(pdesc, 0); 924 set_rx_buffer_desc_total_length(pdesc, 0); 925 926 set_rx_buffer_desc_data_length(pdesc, 927 MAX_RECEIVE_BUFFER_SIZE + 928 RX_DESC_SIZE); 929 930 set_rx_buffer_physical_low(pdesc, (*(dma_addr_t *)val) & 931 DMA_BIT_MASK(32)); 932 set_rx_buffer_physical_high(pdesc, 933 ((u64)(*(dma_addr_t *)val) 934 >> 32), 935 dma64); 936 break; 937 case HW_DESC_RXERO: 938 set_rx_desc_eor(pdesc, 1); 939 break; 940 default: 941 WARN_ONCE(true, 942 "rtl8192ee: ERR rxdesc :%d not processed\n", 943 desc_name); 944 break; 945 } 946 } 947} 948 949u64 rtl92ee_get_desc(struct ieee80211_hw *hw, 950 u8 *pdesc8, bool istx, u8 desc_name) 951{ 952 struct rtl_priv *rtlpriv = rtl_priv(hw); 953 u64 ret = 0; 954 bool dma64 = rtlpriv->cfg->mod_params->dma64; 955 __le32 *pdesc = (__le32 *)pdesc8; 956 957 if (istx) { 958 switch (desc_name) { 959 case HW_DESC_OWN: 960 ret = get_tx_desc_own(pdesc); 961 break; 962 case HW_DESC_TXBUFF_ADDR: 963 ret = get_txbuffer_desc_addr_low(pdesc, 1); 964 ret |= (u64)get_txbuffer_desc_addr_high(pdesc, 1, 965 dma64) << 32; 966 break; 967 default: 968 WARN_ONCE(true, 969 "rtl8192ee: ERR txdesc :%d not processed\n", 970 desc_name); 971 break; 972 } 973 } else { 974 switch (desc_name) { 975 case HW_DESC_OWN: 976 ret = get_rx_desc_own(pdesc); 977 break; 978 case HW_DESC_RXPKT_LEN: 979 ret = get_rx_desc_pkt_len(pdesc); 980 break; 981 case HW_DESC_RXBUFF_ADDR: 982 ret = get_rx_desc_buff_addr(pdesc); 983 break; 984 default: 985 WARN_ONCE(true, 986 "rtl8192ee: ERR rxdesc :%d not processed\n", 987 desc_name); 988 break; 989 } 990 } 991 return ret; 992} 993 994bool rtl92ee_is_tx_desc_closed(struct ieee80211_hw *hw, u8 hw_queue, u16 index) 995{ 996 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 997 struct rtl_priv *rtlpriv = rtl_priv(hw); 998 u16 read_point, write_point; 999 bool ret = false; 1000 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue]; 1001 1002 { 1003 u16 cur_tx_rp; 1004 u32 tmpu32; 1005 1006 tmpu32 = 1007 rtl_read_dword(rtlpriv, 1008 get_desc_addr_fr_q_idx(hw_queue)); 1009 cur_tx_rp = (u16)((tmpu32 >> 16) & 0x0fff); 1010 1011 /* don't need to update ring->cur_tx_wp */ 1012 ring->cur_tx_rp = cur_tx_rp; 1013 } 1014 1015 read_point = ring->cur_tx_rp; 1016 write_point = ring->cur_tx_wp; 1017 1018 if (write_point > read_point) { 1019 if (index < write_point && index >= read_point) 1020 ret = false; 1021 else 1022 ret = true; 1023 } else if (write_point < read_point) { 1024 if (index > write_point && index < read_point) 1025 ret = true; 1026 else 1027 ret = false; 1028 } else { 1029 if (index != read_point) 1030 ret = true; 1031 } 1032 1033 if (hw_queue == BEACON_QUEUE) 1034 ret = true; 1035 1036 if (rtlpriv->rtlhal.driver_is_goingto_unload || 1037 rtlpriv->psc.rfoff_reason > RF_CHANGE_BY_PS) 1038 ret = true; 1039 1040 return ret; 1041} 1042 1043void rtl92ee_tx_polling(struct ieee80211_hw *hw, u8 hw_queue) 1044{ 1045}
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