1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2009-2012 Realtek Corporation.*/ 3 4 #include "../wifi.h" 5 #include "../pci.h" 6 #include "../usb.h" 7 #include "../ps.h" 8 #include "../cam.h" 9 #include "../stats.h" 10 #include "reg.h" 11 #include "def.h" 12 #include "phy.h" 13 #include "rf.h" 14 #include "dm.h" 15 #include "mac.h" 16 #include "trx.h" 17 #include "../rtl8192c/fw_common.h" 18 19 #include <linux/module.h> 20 21 /* macro to shorten lines */ 22 23 #define LINK_Q ui_link_quality 24 #define RX_EVM rx_evm_percentage 25 #define RX_SIGQ rx_mimo_sig_qual 26 27 void rtl92c_read_chip_version(struct ieee80211_hw *hw) 28 { 29 struct rtl_priv *rtlpriv = rtl_priv(hw); 30 struct rtl_phy *rtlphy = &(rtlpriv->phy); 31 struct rtl_hal *rtlhal = rtl_hal(rtlpriv); 32 enum version_8192c chip_version = VERSION_UNKNOWN; 33 const char *versionid; 34 u32 value32; 35 36 value32 = rtl_read_dword(rtlpriv, REG_SYS_CFG); 37 if (value32 & TRP_VAUX_EN) { 38 chip_version = (value32 & TYPE_ID) ? VERSION_TEST_CHIP_92C : 39 VERSION_TEST_CHIP_88C; 40 } else { 41 /* Normal mass production chip. */ 42 chip_version = NORMAL_CHIP; 43 chip_version |= ((value32 & TYPE_ID) ? CHIP_92C : 0); 44 chip_version |= ((value32 & VENDOR_ID) ? CHIP_VENDOR_UMC : 0); 45 if (IS_VENDOR_UMC(chip_version)) 46 chip_version |= ((value32 & CHIP_VER_RTL_MASK) ? 47 CHIP_VENDOR_UMC_B_CUT : 0); 48 if (IS_92C_SERIAL(chip_version)) { 49 value32 = rtl_read_dword(rtlpriv, REG_HPON_FSM); 50 chip_version |= ((CHIP_BONDING_IDENTIFIER(value32) == 51 CHIP_BONDING_92C_1T2R) ? CHIP_92C_1T2R : 0); 52 } 53 } 54 rtlhal->version = (enum version_8192c)chip_version; 55 pr_info("Chip version 0x%x\n", chip_version); 56 switch (rtlhal->version) { 57 case VERSION_NORMAL_TSMC_CHIP_92C_1T2R: 58 versionid = "NORMAL_B_CHIP_92C"; 59 break; 60 case VERSION_NORMAL_TSMC_CHIP_92C: 61 versionid = "NORMAL_TSMC_CHIP_92C"; 62 break; 63 case VERSION_NORMAL_TSMC_CHIP_88C: 64 versionid = "NORMAL_TSMC_CHIP_88C"; 65 break; 66 case VERSION_NORMAL_UMC_CHIP_92C_1T2R_A_CUT: 67 versionid = "NORMAL_UMC_CHIP_i92C_1T2R_A_CUT"; 68 break; 69 case VERSION_NORMAL_UMC_CHIP_92C_A_CUT: 70 versionid = "NORMAL_UMC_CHIP_92C_A_CUT"; 71 break; 72 case VERSION_NORMAL_UMC_CHIP_88C_A_CUT: 73 versionid = "NORMAL_UMC_CHIP_88C_A_CUT"; 74 break; 75 case VERSION_NORMAL_UMC_CHIP_92C_1T2R_B_CUT: 76 versionid = "NORMAL_UMC_CHIP_92C_1T2R_B_CUT"; 77 break; 78 case VERSION_NORMAL_UMC_CHIP_92C_B_CUT: 79 versionid = "NORMAL_UMC_CHIP_92C_B_CUT"; 80 break; 81 case VERSION_NORMAL_UMC_CHIP_88C_B_CUT: 82 versionid = "NORMAL_UMC_CHIP_88C_B_CUT"; 83 break; 84 case VERSION_TEST_CHIP_92C: 85 versionid = "TEST_CHIP_92C"; 86 break; 87 case VERSION_TEST_CHIP_88C: 88 versionid = "TEST_CHIP_88C"; 89 break; 90 default: 91 versionid = "UNKNOWN"; 92 break; 93 } 94 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, 95 "Chip Version ID: %s\n", versionid); 96 97 if (IS_92C_SERIAL(rtlhal->version)) 98 rtlphy->rf_type = 99 (IS_92C_1T2R(rtlhal->version)) ? RF_1T2R : RF_2T2R; 100 else 101 rtlphy->rf_type = RF_1T1R; 102 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 103 "Chip RF Type: %s\n", 104 rtlphy->rf_type == RF_2T2R ? "RF_2T2R" : "RF_1T1R"); 105 if (get_rf_type(rtlphy) == RF_1T1R) 106 rtlpriv->dm.rfpath_rxenable[0] = true; 107 else 108 rtlpriv->dm.rfpath_rxenable[0] = 109 rtlpriv->dm.rfpath_rxenable[1] = true; 110 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, "VersionID = 0x%4x\n", 111 rtlhal->version); 112 } 113 114 /** 115 * writeLLT - LLT table write access 116 * @io: io callback 117 * @address: LLT logical address. 118 * @data: LLT data content 119 * 120 * Realtek hardware access function. 121 * 122 */ 123 bool rtl92c_llt_write(struct ieee80211_hw *hw, u32 address, u32 data) 124 { 125 struct rtl_priv *rtlpriv = rtl_priv(hw); 126 bool status = true; 127 long count = 0; 128 u32 value = _LLT_INIT_ADDR(address) | 129 _LLT_INIT_DATA(data) | _LLT_OP(_LLT_WRITE_ACCESS); 130 131 rtl_write_dword(rtlpriv, REG_LLT_INIT, value); 132 do { 133 value = rtl_read_dword(rtlpriv, REG_LLT_INIT); 134 if (_LLT_NO_ACTIVE == _LLT_OP_VALUE(value)) 135 break; 136 if (count > POLLING_LLT_THRESHOLD) { 137 pr_err("Failed to polling write LLT done at address %d! _LLT_OP_VALUE(%x)\n", 138 address, _LLT_OP_VALUE(value)); 139 status = false; 140 break; 141 } 142 } while (++count); 143 return status; 144 } 145 146 /** 147 * rtl92c_init_LLT_table - Init LLT table 148 * @io: io callback 149 * @boundary: 150 * 151 * Realtek hardware access function. 152 * 153 */ 154 bool rtl92c_init_llt_table(struct ieee80211_hw *hw, u32 boundary) 155 { 156 bool rst = true; 157 u32 i; 158 159 for (i = 0; i < (boundary - 1); i++) { 160 rst = rtl92c_llt_write(hw, i , i + 1); 161 if (true != rst) { 162 pr_err("===> %s #1 fail\n", __func__); 163 return rst; 164 } 165 } 166 /* end of list */ 167 rst = rtl92c_llt_write(hw, (boundary - 1), 0xFF); 168 if (true != rst) { 169 pr_err("===> %s #2 fail\n", __func__); 170 return rst; 171 } 172 /* Make the other pages as ring buffer 173 * This ring buffer is used as beacon buffer if we config this MAC 174 * as two MAC transfer. 175 * Otherwise used as local loopback buffer. 176 */ 177 for (i = boundary; i < LLT_LAST_ENTRY_OF_TX_PKT_BUFFER; i++) { 178 rst = rtl92c_llt_write(hw, i, (i + 1)); 179 if (true != rst) { 180 pr_err("===> %s #3 fail\n", __func__); 181 return rst; 182 } 183 } 184 /* Let last entry point to the start entry of ring buffer */ 185 rst = rtl92c_llt_write(hw, LLT_LAST_ENTRY_OF_TX_PKT_BUFFER, boundary); 186 if (true != rst) { 187 pr_err("===> %s #4 fail\n", __func__); 188 return rst; 189 } 190 return rst; 191 } 192 193 void rtl92c_set_key(struct ieee80211_hw *hw, u32 key_index, 194 u8 *p_macaddr, bool is_group, u8 enc_algo, 195 bool is_wepkey, bool clear_all) 196 { 197 struct rtl_priv *rtlpriv = rtl_priv(hw); 198 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 199 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 200 u8 *macaddr = p_macaddr; 201 u32 entry_id = 0; 202 bool is_pairwise = false; 203 static u8 cam_const_addr[4][6] = { 204 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, 205 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01}, 206 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02}, 207 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} 208 }; 209 static u8 cam_const_broad[] = { 210 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 211 }; 212 213 if (clear_all) { 214 u8 idx = 0; 215 u8 cam_offset = 0; 216 u8 clear_number = 5; 217 218 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, "clear_all\n"); 219 for (idx = 0; idx < clear_number; idx++) { 220 rtl_cam_mark_invalid(hw, cam_offset + idx); 221 rtl_cam_empty_entry(hw, cam_offset + idx); 222 if (idx < 5) { 223 memset(rtlpriv->sec.key_buf[idx], 0, 224 MAX_KEY_LEN); 225 rtlpriv->sec.key_len[idx] = 0; 226 } 227 } 228 } else { 229 switch (enc_algo) { 230 case WEP40_ENCRYPTION: 231 enc_algo = CAM_WEP40; 232 break; 233 case WEP104_ENCRYPTION: 234 enc_algo = CAM_WEP104; 235 break; 236 case TKIP_ENCRYPTION: 237 enc_algo = CAM_TKIP; 238 break; 239 case AESCCMP_ENCRYPTION: 240 enc_algo = CAM_AES; 241 break; 242 default: 243 pr_err("illegal switch case\n"); 244 enc_algo = CAM_TKIP; 245 break; 246 } 247 if (is_wepkey || rtlpriv->sec.use_defaultkey) { 248 macaddr = cam_const_addr[key_index]; 249 entry_id = key_index; 250 } else { 251 if (is_group) { 252 macaddr = cam_const_broad; 253 entry_id = key_index; 254 } else { 255 if (mac->opmode == NL80211_IFTYPE_AP || 256 mac->opmode == NL80211_IFTYPE_MESH_POINT) { 257 entry_id = rtl_cam_get_free_entry(hw, 258 p_macaddr); 259 if (entry_id >= TOTAL_CAM_ENTRY) { 260 pr_err("Can not find free hw security cam entry\n"); 261 return; 262 } 263 } else { 264 entry_id = CAM_PAIRWISE_KEY_POSITION; 265 } 266 267 key_index = PAIRWISE_KEYIDX; 268 is_pairwise = true; 269 } 270 } 271 if (rtlpriv->sec.key_len[key_index] == 0) { 272 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, 273 "delete one entry\n"); 274 if (mac->opmode == NL80211_IFTYPE_AP || 275 mac->opmode == NL80211_IFTYPE_MESH_POINT) 276 rtl_cam_del_entry(hw, p_macaddr); 277 rtl_cam_delete_one_entry(hw, p_macaddr, entry_id); 278 } else { 279 RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD, 280 "The insert KEY length is %d\n", 281 rtlpriv->sec.key_len[PAIRWISE_KEYIDX]); 282 RT_TRACE(rtlpriv, COMP_SEC, DBG_LOUD, 283 "The insert KEY is %x %x\n", 284 rtlpriv->sec.key_buf[0][0], 285 rtlpriv->sec.key_buf[0][1]); 286 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, 287 "add one entry\n"); 288 if (is_pairwise) { 289 RT_PRINT_DATA(rtlpriv, COMP_SEC, DBG_LOUD, 290 "Pairwise Key content", 291 rtlpriv->sec.pairwise_key, 292 rtlpriv->sec. 293 key_len[PAIRWISE_KEYIDX]); 294 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, 295 "set Pairwise key\n"); 296 297 rtl_cam_add_one_entry(hw, macaddr, key_index, 298 entry_id, enc_algo, 299 CAM_CONFIG_NO_USEDK, 300 rtlpriv->sec. 301 key_buf[key_index]); 302 } else { 303 RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG, 304 "set group key\n"); 305 if (mac->opmode == NL80211_IFTYPE_ADHOC) { 306 rtl_cam_add_one_entry(hw, 307 rtlefuse->dev_addr, 308 PAIRWISE_KEYIDX, 309 CAM_PAIRWISE_KEY_POSITION, 310 enc_algo, 311 CAM_CONFIG_NO_USEDK, 312 rtlpriv->sec.key_buf 313 [entry_id]); 314 } 315 rtl_cam_add_one_entry(hw, macaddr, key_index, 316 entry_id, enc_algo, 317 CAM_CONFIG_NO_USEDK, 318 rtlpriv->sec.key_buf[entry_id]); 319 } 320 } 321 } 322 } 323 324 u32 rtl92c_get_txdma_status(struct ieee80211_hw *hw) 325 { 326 struct rtl_priv *rtlpriv = rtl_priv(hw); 327 328 return rtl_read_dword(rtlpriv, REG_TXDMA_STATUS); 329 } 330 331 void rtl92c_enable_interrupt(struct ieee80211_hw *hw) 332 { 333 struct rtl_priv *rtlpriv = rtl_priv(hw); 334 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 335 struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); 336 337 if (IS_HARDWARE_TYPE_8192CE(rtlpriv)) { 338 rtl_write_dword(rtlpriv, REG_HIMR, rtlpci->irq_mask[0] & 339 0xFFFFFFFF); 340 rtl_write_dword(rtlpriv, REG_HIMRE, rtlpci->irq_mask[1] & 341 0xFFFFFFFF); 342 } else { 343 rtl_write_dword(rtlpriv, REG_HIMR, rtlusb->irq_mask[0] & 344 0xFFFFFFFF); 345 rtl_write_dword(rtlpriv, REG_HIMRE, rtlusb->irq_mask[1] & 346 0xFFFFFFFF); 347 } 348 } 349 350 void rtl92c_init_interrupt(struct ieee80211_hw *hw) 351 { 352 rtl92c_enable_interrupt(hw); 353 } 354 355 void rtl92c_disable_interrupt(struct ieee80211_hw *hw) 356 { 357 struct rtl_priv *rtlpriv = rtl_priv(hw); 358 359 rtl_write_dword(rtlpriv, REG_HIMR, IMR8190_DISABLED); 360 rtl_write_dword(rtlpriv, REG_HIMRE, IMR8190_DISABLED); 361 } 362 363 void rtl92c_set_qos(struct ieee80211_hw *hw, int aci) 364 { 365 struct rtl_priv *rtlpriv = rtl_priv(hw); 366 367 rtl92c_dm_init_edca_turbo(hw); 368 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AC_PARAM, (u8 *)&aci); 369 } 370 371 void rtl92c_init_driver_info_size(struct ieee80211_hw *hw, u8 size) 372 { 373 struct rtl_priv *rtlpriv = rtl_priv(hw); 374 375 rtl_write_byte(rtlpriv, REG_RX_DRVINFO_SZ, size); 376 } 377 378 int rtl92c_set_network_type(struct ieee80211_hw *hw, enum nl80211_iftype type) 379 { 380 u8 value; 381 struct rtl_priv *rtlpriv = rtl_priv(hw); 382 383 switch (type) { 384 case NL80211_IFTYPE_UNSPECIFIED: 385 value = NT_NO_LINK; 386 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 387 "Set Network type to NO LINK!\n"); 388 break; 389 case NL80211_IFTYPE_ADHOC: 390 value = NT_LINK_AD_HOC; 391 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 392 "Set Network type to Ad Hoc!\n"); 393 break; 394 case NL80211_IFTYPE_STATION: 395 value = NT_LINK_AP; 396 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 397 "Set Network type to STA!\n"); 398 break; 399 case NL80211_IFTYPE_AP: 400 value = NT_AS_AP; 401 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 402 "Set Network type to AP!\n"); 403 break; 404 default: 405 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 406 "Network type %d not supported!\n", type); 407 return -EOPNOTSUPP; 408 } 409 rtl_write_byte(rtlpriv, MSR, value); 410 return 0; 411 } 412 413 void rtl92c_init_network_type(struct ieee80211_hw *hw) 414 { 415 rtl92c_set_network_type(hw, NL80211_IFTYPE_UNSPECIFIED); 416 } 417 418 void rtl92c_init_adaptive_ctrl(struct ieee80211_hw *hw) 419 { 420 u16 value16; 421 u32 value32; 422 struct rtl_priv *rtlpriv = rtl_priv(hw); 423 424 /* Response Rate Set */ 425 value32 = rtl_read_dword(rtlpriv, REG_RRSR); 426 value32 &= ~RATE_BITMAP_ALL; 427 value32 |= RATE_RRSR_CCK_ONLY_1M; 428 rtl_write_dword(rtlpriv, REG_RRSR, value32); 429 /* SIFS (used in NAV) */ 430 value16 = _SPEC_SIFS_CCK(0x10) | _SPEC_SIFS_OFDM(0x10); 431 rtl_write_word(rtlpriv, REG_SPEC_SIFS, value16); 432 /* Retry Limit */ 433 value16 = _LRL(0x30) | _SRL(0x30); 434 rtl_write_dword(rtlpriv, REG_RL, value16); 435 } 436 437 void rtl92c_init_rate_fallback(struct ieee80211_hw *hw) 438 { 439 struct rtl_priv *rtlpriv = rtl_priv(hw); 440 441 /* Set Data Auto Rate Fallback Retry Count register. */ 442 rtl_write_dword(rtlpriv, REG_DARFRC, 0x00000000); 443 rtl_write_dword(rtlpriv, REG_DARFRC+4, 0x10080404); 444 rtl_write_dword(rtlpriv, REG_RARFRC, 0x04030201); 445 rtl_write_dword(rtlpriv, REG_RARFRC+4, 0x08070605); 446 } 447 448 static void rtl92c_set_cck_sifs(struct ieee80211_hw *hw, u8 trx_sifs, 449 u8 ctx_sifs) 450 { 451 struct rtl_priv *rtlpriv = rtl_priv(hw); 452 453 rtl_write_byte(rtlpriv, REG_SIFS_CCK, trx_sifs); 454 rtl_write_byte(rtlpriv, (REG_SIFS_CCK + 1), ctx_sifs); 455 } 456 457 static void rtl92c_set_ofdm_sifs(struct ieee80211_hw *hw, u8 trx_sifs, 458 u8 ctx_sifs) 459 { 460 struct rtl_priv *rtlpriv = rtl_priv(hw); 461 462 rtl_write_byte(rtlpriv, REG_SIFS_OFDM, trx_sifs); 463 rtl_write_byte(rtlpriv, (REG_SIFS_OFDM + 1), ctx_sifs); 464 } 465 466 void rtl92c_init_edca_param(struct ieee80211_hw *hw, 467 u16 queue, u16 txop, u8 cw_min, u8 cw_max, u8 aifs) 468 { 469 /* sequence: VO, VI, BE, BK ==> the same as 92C hardware design. 470 * referenc : enum nl80211_txq_q or ieee80211_set_wmm_default function. 471 */ 472 u32 value; 473 struct rtl_priv *rtlpriv = rtl_priv(hw); 474 475 value = (u32)aifs; 476 value |= ((u32)cw_min & 0xF) << 8; 477 value |= ((u32)cw_max & 0xF) << 12; 478 value |= (u32)txop << 16; 479 /* 92C hardware register sequence is the same as queue number. */ 480 rtl_write_dword(rtlpriv, (REG_EDCA_VO_PARAM + (queue * 4)), value); 481 } 482 483 void rtl92c_init_edca(struct ieee80211_hw *hw) 484 { 485 u16 value16; 486 struct rtl_priv *rtlpriv = rtl_priv(hw); 487 488 /* disable EDCCA count down, to reduce collison and retry */ 489 value16 = rtl_read_word(rtlpriv, REG_RD_CTRL); 490 value16 |= DIS_EDCA_CNT_DWN; 491 rtl_write_word(rtlpriv, REG_RD_CTRL, value16); 492 /* Update SIFS timing. ?????????? 493 * pHalData->SifsTime = 0x0e0e0a0a; */ 494 rtl92c_set_cck_sifs(hw, 0xa, 0xa); 495 rtl92c_set_ofdm_sifs(hw, 0xe, 0xe); 496 /* Set CCK/OFDM SIFS to be 10us. */ 497 rtl_write_word(rtlpriv, REG_SIFS_CCK, 0x0a0a); 498 rtl_write_word(rtlpriv, REG_SIFS_OFDM, 0x1010); 499 rtl_write_word(rtlpriv, REG_PROT_MODE_CTRL, 0x0204); 500 rtl_write_dword(rtlpriv, REG_BAR_MODE_CTRL, 0x014004); 501 /* TXOP */ 502 rtl_write_dword(rtlpriv, REG_EDCA_BE_PARAM, 0x005EA42B); 503 rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, 0x0000A44F); 504 rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, 0x005EA324); 505 rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, 0x002FA226); 506 /* PIFS */ 507 rtl_write_byte(rtlpriv, REG_PIFS, 0x1C); 508 /* AGGR BREAK TIME Register */ 509 rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16); 510 rtl_write_word(rtlpriv, REG_NAV_PROT_LEN, 0x0040); 511 rtl_write_byte(rtlpriv, REG_BCNDMATIM, 0x02); 512 rtl_write_byte(rtlpriv, REG_ATIMWND, 0x02); 513 } 514 515 void rtl92c_init_ampdu_aggregation(struct ieee80211_hw *hw) 516 { 517 struct rtl_priv *rtlpriv = rtl_priv(hw); 518 519 rtl_write_dword(rtlpriv, REG_AGGLEN_LMT, 0x99997631); 520 rtl_write_byte(rtlpriv, REG_AGGR_BREAK_TIME, 0x16); 521 /* init AMPDU aggregation number, tuning for Tx's TP, */ 522 rtl_write_word(rtlpriv, 0x4CA, 0x0708); 523 } 524 525 void rtl92c_init_beacon_max_error(struct ieee80211_hw *hw) 526 { 527 struct rtl_priv *rtlpriv = rtl_priv(hw); 528 529 rtl_write_byte(rtlpriv, REG_BCN_MAX_ERR, 0xFF); 530 } 531 532 void rtl92c_init_rdg_setting(struct ieee80211_hw *hw) 533 { 534 struct rtl_priv *rtlpriv = rtl_priv(hw); 535 536 rtl_write_byte(rtlpriv, REG_RD_CTRL, 0xFF); 537 rtl_write_word(rtlpriv, REG_RD_NAV_NXT, 0x200); 538 rtl_write_byte(rtlpriv, REG_RD_RESP_PKT_TH, 0x05); 539 } 540 541 void rtl92c_init_retry_function(struct ieee80211_hw *hw) 542 { 543 u8 value8; 544 struct rtl_priv *rtlpriv = rtl_priv(hw); 545 546 value8 = rtl_read_byte(rtlpriv, REG_FWHW_TXQ_CTRL); 547 value8 |= EN_AMPDU_RTY_NEW; 548 rtl_write_byte(rtlpriv, REG_FWHW_TXQ_CTRL, value8); 549 /* Set ACK timeout */ 550 rtl_write_byte(rtlpriv, REG_ACKTO, 0x40); 551 } 552 553 void rtl92c_disable_fast_edca(struct ieee80211_hw *hw) 554 { 555 struct rtl_priv *rtlpriv = rtl_priv(hw); 556 557 rtl_write_word(rtlpriv, REG_FAST_EDCA_CTRL, 0); 558 } 559 560 void rtl92c_set_min_space(struct ieee80211_hw *hw, bool is2T) 561 { 562 struct rtl_priv *rtlpriv = rtl_priv(hw); 563 u8 value = is2T ? MAX_MSS_DENSITY_2T : MAX_MSS_DENSITY_1T; 564 565 rtl_write_byte(rtlpriv, REG_AMPDU_MIN_SPACE, value); 566 } 567 568 /*==============================================================*/ 569 570 static u8 _rtl92c_query_rxpwrpercentage(s8 antpower) 571 { 572 if ((antpower <= -100) || (antpower >= 20)) 573 return 0; 574 else if (antpower >= 0) 575 return 100; 576 else 577 return 100 + antpower; 578 } 579 580 static u8 _rtl92c_evm_db_to_percentage(s8 value) 581 { 582 s8 ret_val; 583 584 ret_val = value; 585 if (ret_val >= 0) 586 ret_val = 0; 587 if (ret_val <= -33) 588 ret_val = -33; 589 ret_val = 0 - ret_val; 590 ret_val *= 3; 591 if (ret_val == 99) 592 ret_val = 100; 593 return ret_val; 594 } 595 596 static long _rtl92c_signal_scale_mapping(struct ieee80211_hw *hw, 597 long currsig) 598 { 599 long retsig; 600 601 if (currsig >= 61 && currsig <= 100) 602 retsig = 90 + ((currsig - 60) / 4); 603 else if (currsig >= 41 && currsig <= 60) 604 retsig = 78 + ((currsig - 40) / 2); 605 else if (currsig >= 31 && currsig <= 40) 606 retsig = 66 + (currsig - 30); 607 else if (currsig >= 21 && currsig <= 30) 608 retsig = 54 + (currsig - 20); 609 else if (currsig >= 5 && currsig <= 20) 610 retsig = 42 + (((currsig - 5) * 2) / 3); 611 else if (currsig == 4) 612 retsig = 36; 613 else if (currsig == 3) 614 retsig = 27; 615 else if (currsig == 2) 616 retsig = 18; 617 else if (currsig == 1) 618 retsig = 9; 619 else 620 retsig = currsig; 621 return retsig; 622 } 623 624 static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw, 625 struct rtl_stats *pstats, 626 struct rx_desc_92c *p_desc, 627 struct rx_fwinfo_92c *p_drvinfo, 628 bool packet_match_bssid, 629 bool packet_toself, 630 bool packet_beacon) 631 { 632 struct rtl_priv *rtlpriv = rtl_priv(hw); 633 struct rtl_phy *rtlphy = &(rtlpriv->phy); 634 struct phy_sts_cck_8192s_t *cck_buf; 635 s8 rx_pwr_all = 0, rx_pwr[4]; 636 u8 rf_rx_num = 0, evm, pwdb_all; 637 u8 i, max_spatial_stream; 638 u32 rssi, total_rssi = 0; 639 bool in_powersavemode = false; 640 bool is_cck_rate; 641 u8 *pdesc = (u8 *)p_desc; 642 643 is_cck_rate = RX_HAL_IS_CCK_RATE(p_desc->rxmcs); 644 pstats->packet_matchbssid = packet_match_bssid; 645 pstats->packet_toself = packet_toself; 646 pstats->packet_beacon = packet_beacon; 647 pstats->is_cck = is_cck_rate; 648 pstats->RX_SIGQ[0] = -1; 649 pstats->RX_SIGQ[1] = -1; 650 if (is_cck_rate) { 651 u8 report, cck_highpwr; 652 653 cck_buf = (struct phy_sts_cck_8192s_t *)p_drvinfo; 654 if (!in_powersavemode) 655 cck_highpwr = rtlphy->cck_high_power; 656 else 657 cck_highpwr = false; 658 if (!cck_highpwr) { 659 u8 cck_agc_rpt = cck_buf->cck_agc_rpt; 660 661 report = cck_buf->cck_agc_rpt & 0xc0; 662 report = report >> 6; 663 switch (report) { 664 case 0x3: 665 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e); 666 break; 667 case 0x2: 668 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e); 669 break; 670 case 0x1: 671 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e); 672 break; 673 case 0x0: 674 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e); 675 break; 676 } 677 } else { 678 u8 cck_agc_rpt = cck_buf->cck_agc_rpt; 679 680 report = p_drvinfo->cfosho[0] & 0x60; 681 report = report >> 5; 682 switch (report) { 683 case 0x3: 684 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f) << 1); 685 break; 686 case 0x2: 687 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f) << 1); 688 break; 689 case 0x1: 690 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f) << 1); 691 break; 692 case 0x0: 693 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f) << 1); 694 break; 695 } 696 } 697 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all); 698 pstats->rx_pwdb_all = pwdb_all; 699 pstats->recvsignalpower = rx_pwr_all; 700 if (packet_match_bssid) { 701 u8 sq; 702 703 if (pstats->rx_pwdb_all > 40) 704 sq = 100; 705 else { 706 sq = cck_buf->sq_rpt; 707 if (sq > 64) 708 sq = 0; 709 else if (sq < 20) 710 sq = 100; 711 else 712 sq = ((64 - sq) * 100) / 44; 713 } 714 pstats->signalquality = sq; 715 pstats->RX_SIGQ[0] = sq; 716 pstats->RX_SIGQ[1] = -1; 717 } 718 } else { 719 rtlpriv->dm.rfpath_rxenable[0] = 720 rtlpriv->dm.rfpath_rxenable[1] = true; 721 for (i = RF90_PATH_A; i < RF90_PATH_MAX; i++) { 722 if (rtlpriv->dm.rfpath_rxenable[i]) 723 rf_rx_num++; 724 rx_pwr[i] = 725 ((p_drvinfo->gain_trsw[i] & 0x3f) * 2) - 110; 726 rssi = _rtl92c_query_rxpwrpercentage(rx_pwr[i]); 727 total_rssi += rssi; 728 rtlpriv->stats.rx_snr_db[i] = 729 (long)(p_drvinfo->rxsnr[i] / 2); 730 731 if (packet_match_bssid) 732 pstats->rx_mimo_signalstrength[i] = (u8) rssi; 733 } 734 rx_pwr_all = ((p_drvinfo->pwdb_all >> 1) & 0x7f) - 110; 735 pwdb_all = _rtl92c_query_rxpwrpercentage(rx_pwr_all); 736 pstats->rx_pwdb_all = pwdb_all; 737 pstats->rxpower = rx_pwr_all; 738 pstats->recvsignalpower = rx_pwr_all; 739 if (GET_RX_DESC_RX_MCS(pdesc) && 740 GET_RX_DESC_RX_MCS(pdesc) >= DESC_RATEMCS8 && 741 GET_RX_DESC_RX_MCS(pdesc) <= DESC_RATEMCS15) 742 max_spatial_stream = 2; 743 else 744 max_spatial_stream = 1; 745 for (i = 0; i < max_spatial_stream; i++) { 746 evm = _rtl92c_evm_db_to_percentage(p_drvinfo->rxevm[i]); 747 if (packet_match_bssid) { 748 if (i == 0) 749 pstats->signalquality = 750 (u8) (evm & 0xff); 751 pstats->RX_SIGQ[i] = 752 (u8) (evm & 0xff); 753 } 754 } 755 } 756 if (is_cck_rate) 757 pstats->signalstrength = 758 (u8) (_rtl92c_signal_scale_mapping(hw, pwdb_all)); 759 else if (rf_rx_num != 0) 760 pstats->signalstrength = 761 (u8) (_rtl92c_signal_scale_mapping 762 (hw, total_rssi /= rf_rx_num)); 763 } 764 765 void rtl92c_translate_rx_signal_stuff(struct ieee80211_hw *hw, 766 struct sk_buff *skb, 767 struct rtl_stats *pstats, 768 struct rx_desc_92c *pdesc, 769 struct rx_fwinfo_92c *p_drvinfo) 770 { 771 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 772 struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw)); 773 struct ieee80211_hdr *hdr; 774 u8 *tmp_buf; 775 u8 *praddr; 776 __le16 fc; 777 u16 type, cpu_fc; 778 bool packet_matchbssid, packet_toself, packet_beacon = false; 779 780 tmp_buf = skb->data + pstats->rx_drvinfo_size + pstats->rx_bufshift; 781 hdr = (struct ieee80211_hdr *)tmp_buf; 782 fc = hdr->frame_control; 783 cpu_fc = le16_to_cpu(fc); 784 type = WLAN_FC_GET_TYPE(fc); 785 praddr = hdr->addr1; 786 packet_matchbssid = 787 ((IEEE80211_FTYPE_CTL != type) && 788 ether_addr_equal(mac->bssid, 789 (cpu_fc & IEEE80211_FCTL_TODS) ? hdr->addr1 : 790 (cpu_fc & IEEE80211_FCTL_FROMDS) ? hdr->addr2 : 791 hdr->addr3) && 792 (!pstats->hwerror) && (!pstats->crc) && (!pstats->icv)); 793 794 packet_toself = packet_matchbssid && 795 ether_addr_equal(praddr, rtlefuse->dev_addr); 796 if (ieee80211_is_beacon(fc)) 797 packet_beacon = true; 798 _rtl92c_query_rxphystatus(hw, pstats, pdesc, p_drvinfo, 799 packet_matchbssid, packet_toself, 800 packet_beacon); 801 rtl_process_phyinfo(hw, tmp_buf, pstats); 802 } 803