1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2009-2012 Realtek Corporation.*/ 3 4 #include "wifi.h" 5 #include "core.h" 6 #include "pci.h" 7 #include "base.h" 8 #include "ps.h" 9 #include "efuse.h" 10 #include <linux/interrupt.h> 11 #include <linux/export.h> 12 #include <linux/module.h> 13 14 MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>"); 15 MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>"); 16 MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>"); 17 MODULE_LICENSE("GPL"); 18 MODULE_DESCRIPTION("PCI basic driver for rtlwifi"); 19 20 static const u16 pcibridge_vendors[PCI_BRIDGE_VENDOR_MAX] = { 21 INTEL_VENDOR_ID, 22 ATI_VENDOR_ID, 23 AMD_VENDOR_ID, 24 SIS_VENDOR_ID 25 }; 26 27 static const u8 ac_to_hwq[] = { 28 VO_QUEUE, 29 VI_QUEUE, 30 BE_QUEUE, 31 BK_QUEUE 32 }; 33 34 static u8 _rtl_mac_to_hwqueue(struct ieee80211_hw *hw, struct sk_buff *skb) 35 { 36 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 37 __le16 fc = rtl_get_fc(skb); 38 u8 queue_index = skb_get_queue_mapping(skb); 39 struct ieee80211_hdr *hdr; 40 41 if (unlikely(ieee80211_is_beacon(fc))) 42 return BEACON_QUEUE; 43 if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc)) 44 return MGNT_QUEUE; 45 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) 46 if (ieee80211_is_nullfunc(fc)) 47 return HIGH_QUEUE; 48 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) { 49 hdr = rtl_get_hdr(skb); 50 51 if (is_multicast_ether_addr(hdr->addr1) || 52 is_broadcast_ether_addr(hdr->addr1)) 53 return HIGH_QUEUE; 54 } 55 56 return ac_to_hwq[queue_index]; 57 } 58 59 /* Update PCI dependent default settings*/ 60 static void _rtl_pci_update_default_setting(struct ieee80211_hw *hw) 61 { 62 struct rtl_priv *rtlpriv = rtl_priv(hw); 63 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 64 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 65 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 66 u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor; 67 u8 init_aspm; 68 69 ppsc->reg_rfps_level = 0; 70 ppsc->support_aspm = false; 71 72 /*Update PCI ASPM setting */ 73 ppsc->const_amdpci_aspm = rtlpci->const_amdpci_aspm; 74 switch (rtlpci->const_pci_aspm) { 75 case 0: 76 /*No ASPM */ 77 break; 78 79 case 1: 80 /*ASPM dynamically enabled/disable. */ 81 ppsc->reg_rfps_level |= RT_RF_LPS_LEVEL_ASPM; 82 break; 83 84 case 2: 85 /*ASPM with Clock Req dynamically enabled/disable. */ 86 ppsc->reg_rfps_level |= (RT_RF_LPS_LEVEL_ASPM | 87 RT_RF_OFF_LEVL_CLK_REQ); 88 break; 89 90 case 3: 91 /* Always enable ASPM and Clock Req 92 * from initialization to halt. 93 */ 94 ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM); 95 ppsc->reg_rfps_level |= (RT_RF_PS_LEVEL_ALWAYS_ASPM | 96 RT_RF_OFF_LEVL_CLK_REQ); 97 break; 98 99 case 4: 100 /* Always enable ASPM without Clock Req 101 * from initialization to halt. 102 */ 103 ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM | 104 RT_RF_OFF_LEVL_CLK_REQ); 105 ppsc->reg_rfps_level |= RT_RF_PS_LEVEL_ALWAYS_ASPM; 106 break; 107 } 108 109 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC; 110 111 /*Update Radio OFF setting */ 112 switch (rtlpci->const_hwsw_rfoff_d3) { 113 case 1: 114 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM) 115 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM; 116 break; 117 118 case 2: 119 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM) 120 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM; 121 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC; 122 break; 123 124 case 3: 125 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_PCI_D3; 126 break; 127 } 128 129 /*Set HW definition to determine if it supports ASPM. */ 130 switch (rtlpci->const_support_pciaspm) { 131 case 0: 132 /*Not support ASPM. */ 133 ppsc->support_aspm = false; 134 break; 135 case 1: 136 /*Support ASPM. */ 137 ppsc->support_aspm = true; 138 ppsc->support_backdoor = true; 139 break; 140 case 2: 141 /*ASPM value set by chipset. */ 142 if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL) 143 ppsc->support_aspm = true; 144 break; 145 default: 146 pr_err("switch case %#x not processed\n", 147 rtlpci->const_support_pciaspm); 148 break; 149 } 150 151 /* toshiba aspm issue, toshiba will set aspm selfly 152 * so we should not set aspm in driver 153 */ 154 pci_read_config_byte(rtlpci->pdev, 0x80, &init_aspm); 155 if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8192SE && 156 init_aspm == 0x43) 157 ppsc->support_aspm = false; 158 } 159 160 static bool _rtl_pci_platform_switch_device_pci_aspm( 161 struct ieee80211_hw *hw, 162 u8 value) 163 { 164 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 165 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 166 167 if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192SE) 168 value |= 0x40; 169 170 pci_write_config_byte(rtlpci->pdev, 0x80, value); 171 172 return false; 173 } 174 175 /*When we set 0x01 to enable clk request. Set 0x0 to disable clk req.*/ 176 static void _rtl_pci_switch_clk_req(struct ieee80211_hw *hw, u8 value) 177 { 178 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 179 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 180 181 pci_write_config_byte(rtlpci->pdev, 0x81, value); 182 183 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) 184 udelay(100); 185 } 186 187 /*Disable RTL8192SE ASPM & Disable Pci Bridge ASPM*/ 188 static void rtl_pci_disable_aspm(struct ieee80211_hw *hw) 189 { 190 struct rtl_priv *rtlpriv = rtl_priv(hw); 191 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 192 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 193 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 194 u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor; 195 u8 num4bytes = pcipriv->ndis_adapter.num4bytes; 196 /*Retrieve original configuration settings. */ 197 u8 linkctrl_reg = pcipriv->ndis_adapter.linkctrl_reg; 198 u16 pcibridge_linkctrlreg = pcipriv->ndis_adapter. 199 pcibridge_linkctrlreg; 200 u16 aspmlevel = 0; 201 u8 tmp_u1b = 0; 202 203 if (!ppsc->support_aspm) 204 return; 205 206 if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) { 207 RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE, 208 "PCI(Bridge) UNKNOWN\n"); 209 210 return; 211 } 212 213 if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) { 214 RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ); 215 _rtl_pci_switch_clk_req(hw, 0x0); 216 } 217 218 /*for promising device will in L0 state after an I/O. */ 219 pci_read_config_byte(rtlpci->pdev, 0x80, &tmp_u1b); 220 221 /*Set corresponding value. */ 222 aspmlevel |= BIT(0) | BIT(1); 223 linkctrl_reg &= ~aspmlevel; 224 pcibridge_linkctrlreg &= ~(BIT(0) | BIT(1)); 225 226 _rtl_pci_platform_switch_device_pci_aspm(hw, linkctrl_reg); 227 udelay(50); 228 229 /*4 Disable Pci Bridge ASPM */ 230 pci_write_config_byte(rtlpci->pdev, (num4bytes << 2), 231 pcibridge_linkctrlreg); 232 233 udelay(50); 234 } 235 236 /*Enable RTL8192SE ASPM & Enable Pci Bridge ASPM for 237 *power saving We should follow the sequence to enable 238 *RTL8192SE first then enable Pci Bridge ASPM 239 *or the system will show bluescreen. 240 */ 241 static void rtl_pci_enable_aspm(struct ieee80211_hw *hw) 242 { 243 struct rtl_priv *rtlpriv = rtl_priv(hw); 244 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 245 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 246 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 247 u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor; 248 u8 num4bytes = pcipriv->ndis_adapter.num4bytes; 249 u16 aspmlevel; 250 u8 u_pcibridge_aspmsetting; 251 u8 u_device_aspmsetting; 252 253 if (!ppsc->support_aspm) 254 return; 255 256 if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) { 257 RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE, 258 "PCI(Bridge) UNKNOWN\n"); 259 return; 260 } 261 262 /*4 Enable Pci Bridge ASPM */ 263 264 u_pcibridge_aspmsetting = 265 pcipriv->ndis_adapter.pcibridge_linkctrlreg | 266 rtlpci->const_hostpci_aspm_setting; 267 268 if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL) 269 u_pcibridge_aspmsetting &= ~BIT(0); 270 271 pci_write_config_byte(rtlpci->pdev, (num4bytes << 2), 272 u_pcibridge_aspmsetting); 273 274 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 275 "PlatformEnableASPM(): Write reg[%x] = %x\n", 276 (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10), 277 u_pcibridge_aspmsetting); 278 279 udelay(50); 280 281 /*Get ASPM level (with/without Clock Req) */ 282 aspmlevel = rtlpci->const_devicepci_aspm_setting; 283 u_device_aspmsetting = pcipriv->ndis_adapter.linkctrl_reg; 284 285 /*_rtl_pci_platform_switch_device_pci_aspm(dev,*/ 286 /*(priv->ndis_adapter.linkctrl_reg | ASPMLevel)); */ 287 288 u_device_aspmsetting |= aspmlevel; 289 290 _rtl_pci_platform_switch_device_pci_aspm(hw, u_device_aspmsetting); 291 292 if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) { 293 _rtl_pci_switch_clk_req(hw, (ppsc->reg_rfps_level & 294 RT_RF_OFF_LEVL_CLK_REQ) ? 1 : 0); 295 RT_SET_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ); 296 } 297 udelay(100); 298 } 299 300 static bool rtl_pci_get_amd_l1_patch(struct ieee80211_hw *hw) 301 { 302 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 303 304 bool status = false; 305 u8 offset_e0; 306 unsigned int offset_e4; 307 308 pci_write_config_byte(rtlpci->pdev, 0xe0, 0xa0); 309 310 pci_read_config_byte(rtlpci->pdev, 0xe0, &offset_e0); 311 312 if (offset_e0 == 0xA0) { 313 pci_read_config_dword(rtlpci->pdev, 0xe4, &offset_e4); 314 if (offset_e4 & BIT(23)) 315 status = true; 316 } 317 318 return status; 319 } 320 321 static bool rtl_pci_check_buddy_priv(struct ieee80211_hw *hw, 322 struct rtl_priv **buddy_priv) 323 { 324 struct rtl_priv *rtlpriv = rtl_priv(hw); 325 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 326 bool find_buddy_priv = false; 327 struct rtl_priv *tpriv; 328 struct rtl_pci_priv *tpcipriv = NULL; 329 330 if (!list_empty(&rtlpriv->glb_var->glb_priv_list)) { 331 list_for_each_entry(tpriv, &rtlpriv->glb_var->glb_priv_list, 332 list) { 333 tpcipriv = (struct rtl_pci_priv *)tpriv->priv; 334 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 335 "pcipriv->ndis_adapter.funcnumber %x\n", 336 pcipriv->ndis_adapter.funcnumber); 337 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 338 "tpcipriv->ndis_adapter.funcnumber %x\n", 339 tpcipriv->ndis_adapter.funcnumber); 340 341 if (pcipriv->ndis_adapter.busnumber == 342 tpcipriv->ndis_adapter.busnumber && 343 pcipriv->ndis_adapter.devnumber == 344 tpcipriv->ndis_adapter.devnumber && 345 pcipriv->ndis_adapter.funcnumber != 346 tpcipriv->ndis_adapter.funcnumber) { 347 find_buddy_priv = true; 348 break; 349 } 350 } 351 } 352 353 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 354 "find_buddy_priv %d\n", find_buddy_priv); 355 356 if (find_buddy_priv) 357 *buddy_priv = tpriv; 358 359 return find_buddy_priv; 360 } 361 362 static void rtl_pci_get_linkcontrol_field(struct ieee80211_hw *hw) 363 { 364 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 365 struct rtl_pci *rtlpci = rtl_pcidev(pcipriv); 366 u8 capabilityoffset = pcipriv->ndis_adapter.pcibridge_pciehdr_offset; 367 u8 linkctrl_reg; 368 u8 num4bbytes; 369 370 num4bbytes = (capabilityoffset + 0x10) / 4; 371 372 /*Read Link Control Register */ 373 pci_read_config_byte(rtlpci->pdev, (num4bbytes << 2), &linkctrl_reg); 374 375 pcipriv->ndis_adapter.pcibridge_linkctrlreg = linkctrl_reg; 376 } 377 378 static void rtl_pci_parse_configuration(struct pci_dev *pdev, 379 struct ieee80211_hw *hw) 380 { 381 struct rtl_priv *rtlpriv = rtl_priv(hw); 382 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 383 384 u8 tmp; 385 u16 linkctrl_reg; 386 387 /*Link Control Register */ 388 pcie_capability_read_word(pdev, PCI_EXP_LNKCTL, &linkctrl_reg); 389 pcipriv->ndis_adapter.linkctrl_reg = (u8)linkctrl_reg; 390 391 RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, "Link Control Register =%x\n", 392 pcipriv->ndis_adapter.linkctrl_reg); 393 394 pci_read_config_byte(pdev, 0x98, &tmp); 395 tmp |= BIT(4); 396 pci_write_config_byte(pdev, 0x98, tmp); 397 398 tmp = 0x17; 399 pci_write_config_byte(pdev, 0x70f, tmp); 400 } 401 402 static void rtl_pci_init_aspm(struct ieee80211_hw *hw) 403 { 404 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 405 406 _rtl_pci_update_default_setting(hw); 407 408 if (ppsc->reg_rfps_level & RT_RF_PS_LEVEL_ALWAYS_ASPM) { 409 /*Always enable ASPM & Clock Req. */ 410 rtl_pci_enable_aspm(hw); 411 RT_SET_PS_LEVEL(ppsc, RT_RF_PS_LEVEL_ALWAYS_ASPM); 412 } 413 } 414 415 static void _rtl_pci_io_handler_init(struct device *dev, 416 struct ieee80211_hw *hw) 417 { 418 struct rtl_priv *rtlpriv = rtl_priv(hw); 419 420 rtlpriv->io.dev = dev; 421 422 rtlpriv->io.write8_async = pci_write8_async; 423 rtlpriv->io.write16_async = pci_write16_async; 424 rtlpriv->io.write32_async = pci_write32_async; 425 426 rtlpriv->io.read8_sync = pci_read8_sync; 427 rtlpriv->io.read16_sync = pci_read16_sync; 428 rtlpriv->io.read32_sync = pci_read32_sync; 429 } 430 431 static bool _rtl_update_earlymode_info(struct ieee80211_hw *hw, 432 struct sk_buff *skb, 433 struct rtl_tcb_desc *tcb_desc, u8 tid) 434 { 435 struct rtl_priv *rtlpriv = rtl_priv(hw); 436 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 437 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 438 struct sk_buff *next_skb; 439 u8 additionlen = FCS_LEN; 440 441 /* here open is 4, wep/tkip is 8, aes is 12*/ 442 if (info->control.hw_key) 443 additionlen += info->control.hw_key->icv_len; 444 445 /* The most skb num is 6 */ 446 tcb_desc->empkt_num = 0; 447 spin_lock_bh(&rtlpriv->locks.waitq_lock); 448 skb_queue_walk(&rtlpriv->mac80211.skb_waitq[tid], next_skb) { 449 struct ieee80211_tx_info *next_info; 450 451 next_info = IEEE80211_SKB_CB(next_skb); 452 if (next_info->flags & IEEE80211_TX_CTL_AMPDU) { 453 tcb_desc->empkt_len[tcb_desc->empkt_num] = 454 next_skb->len + additionlen; 455 tcb_desc->empkt_num++; 456 } else { 457 break; 458 } 459 460 if (skb_queue_is_last(&rtlpriv->mac80211.skb_waitq[tid], 461 next_skb)) 462 break; 463 464 if (tcb_desc->empkt_num >= rtlhal->max_earlymode_num) 465 break; 466 } 467 spin_unlock_bh(&rtlpriv->locks.waitq_lock); 468 469 return true; 470 } 471 472 /* just for early mode now */ 473 static void _rtl_pci_tx_chk_waitq(struct ieee80211_hw *hw) 474 { 475 struct rtl_priv *rtlpriv = rtl_priv(hw); 476 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 477 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 478 struct sk_buff *skb = NULL; 479 struct ieee80211_tx_info *info = NULL; 480 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 481 int tid; 482 483 if (!rtlpriv->rtlhal.earlymode_enable) 484 return; 485 486 if (rtlpriv->dm.supp_phymode_switch && 487 (rtlpriv->easy_concurrent_ctl.switch_in_process || 488 (rtlpriv->buddy_priv && 489 rtlpriv->buddy_priv->easy_concurrent_ctl.switch_in_process))) 490 return; 491 /* we just use em for BE/BK/VI/VO */ 492 for (tid = 7; tid >= 0; tid--) { 493 u8 hw_queue = ac_to_hwq[rtl_tid_to_ac(tid)]; 494 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue]; 495 496 while (!mac->act_scanning && 497 rtlpriv->psc.rfpwr_state == ERFON) { 498 struct rtl_tcb_desc tcb_desc; 499 500 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); 501 502 spin_lock(&rtlpriv->locks.waitq_lock); 503 if (!skb_queue_empty(&mac->skb_waitq[tid]) && 504 (ring->entries - skb_queue_len(&ring->queue) > 505 rtlhal->max_earlymode_num)) { 506 skb = skb_dequeue(&mac->skb_waitq[tid]); 507 } else { 508 spin_unlock(&rtlpriv->locks.waitq_lock); 509 break; 510 } 511 spin_unlock(&rtlpriv->locks.waitq_lock); 512 513 /* Some macaddr can't do early mode. like 514 * multicast/broadcast/no_qos data 515 */ 516 info = IEEE80211_SKB_CB(skb); 517 if (info->flags & IEEE80211_TX_CTL_AMPDU) 518 _rtl_update_earlymode_info(hw, skb, 519 &tcb_desc, tid); 520 521 rtlpriv->intf_ops->adapter_tx(hw, NULL, skb, &tcb_desc); 522 } 523 } 524 } 525 526 static void _rtl_pci_tx_isr(struct ieee80211_hw *hw, int prio) 527 { 528 struct rtl_priv *rtlpriv = rtl_priv(hw); 529 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 530 531 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio]; 532 533 while (skb_queue_len(&ring->queue)) { 534 struct sk_buff *skb; 535 struct ieee80211_tx_info *info; 536 __le16 fc; 537 u8 tid; 538 u8 *entry; 539 540 if (rtlpriv->use_new_trx_flow) 541 entry = (u8 *)(&ring->buffer_desc[ring->idx]); 542 else 543 entry = (u8 *)(&ring->desc[ring->idx]); 544 545 if (!rtlpriv->cfg->ops->is_tx_desc_closed(hw, prio, ring->idx)) 546 return; 547 ring->idx = (ring->idx + 1) % ring->entries; 548 549 skb = __skb_dequeue(&ring->queue); 550 pci_unmap_single(rtlpci->pdev, 551 rtlpriv->cfg->ops-> 552 get_desc(hw, (u8 *)entry, true, 553 HW_DESC_TXBUFF_ADDR), 554 skb->len, PCI_DMA_TODEVICE); 555 556 /* remove early mode header */ 557 if (rtlpriv->rtlhal.earlymode_enable) 558 skb_pull(skb, EM_HDR_LEN); 559 560 RT_TRACE(rtlpriv, (COMP_INTR | COMP_SEND), DBG_TRACE, 561 "new ring->idx:%d, free: skb_queue_len:%d, free: seq:%x\n", 562 ring->idx, 563 skb_queue_len(&ring->queue), 564 *(u16 *)(skb->data + 22)); 565 566 if (prio == TXCMD_QUEUE) { 567 dev_kfree_skb(skb); 568 goto tx_status_ok; 569 } 570 571 /* for sw LPS, just after NULL skb send out, we can 572 * sure AP knows we are sleeping, we should not let 573 * rf sleep 574 */ 575 fc = rtl_get_fc(skb); 576 if (ieee80211_is_nullfunc(fc)) { 577 if (ieee80211_has_pm(fc)) { 578 rtlpriv->mac80211.offchan_delay = true; 579 rtlpriv->psc.state_inap = true; 580 } else { 581 rtlpriv->psc.state_inap = false; 582 } 583 } 584 if (ieee80211_is_action(fc)) { 585 struct ieee80211_mgmt *action_frame = 586 (struct ieee80211_mgmt *)skb->data; 587 if (action_frame->u.action.u.ht_smps.action == 588 WLAN_HT_ACTION_SMPS) { 589 dev_kfree_skb(skb); 590 goto tx_status_ok; 591 } 592 } 593 594 /* update tid tx pkt num */ 595 tid = rtl_get_tid(skb); 596 if (tid <= 7) 597 rtlpriv->link_info.tidtx_inperiod[tid]++; 598 599 info = IEEE80211_SKB_CB(skb); 600 601 if (likely(!ieee80211_is_nullfunc(fc))) { 602 ieee80211_tx_info_clear_status(info); 603 info->flags |= IEEE80211_TX_STAT_ACK; 604 /*info->status.rates[0].count = 1; */ 605 ieee80211_tx_status_irqsafe(hw, skb); 606 } else { 607 rtl_tx_ackqueue(hw, skb); 608 } 609 610 if ((ring->entries - skb_queue_len(&ring->queue)) <= 4) { 611 RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG, 612 "more desc left, wake skb_queue@%d, ring->idx = %d, skb_queue_len = 0x%x\n", 613 prio, ring->idx, 614 skb_queue_len(&ring->queue)); 615 616 ieee80211_wake_queue(hw, skb_get_queue_mapping(skb)); 617 } 618 tx_status_ok: 619 skb = NULL; 620 } 621 622 if (((rtlpriv->link_info.num_rx_inperiod + 623 rtlpriv->link_info.num_tx_inperiod) > 8) || 624 rtlpriv->link_info.num_rx_inperiod > 2) 625 rtl_lps_leave(hw); 626 } 627 628 static int _rtl_pci_init_one_rxdesc(struct ieee80211_hw *hw, 629 struct sk_buff *new_skb, u8 *entry, 630 int rxring_idx, int desc_idx) 631 { 632 struct rtl_priv *rtlpriv = rtl_priv(hw); 633 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 634 u32 bufferaddress; 635 u8 tmp_one = 1; 636 struct sk_buff *skb; 637 638 if (likely(new_skb)) { 639 skb = new_skb; 640 goto remap; 641 } 642 skb = dev_alloc_skb(rtlpci->rxbuffersize); 643 if (!skb) 644 return 0; 645 646 remap: 647 /* just set skb->cb to mapping addr for pci_unmap_single use */ 648 *((dma_addr_t *)skb->cb) = 649 pci_map_single(rtlpci->pdev, skb_tail_pointer(skb), 650 rtlpci->rxbuffersize, PCI_DMA_FROMDEVICE); 651 bufferaddress = *((dma_addr_t *)skb->cb); 652 if (pci_dma_mapping_error(rtlpci->pdev, bufferaddress)) 653 return 0; 654 rtlpci->rx_ring[rxring_idx].rx_buf[desc_idx] = skb; 655 if (rtlpriv->use_new_trx_flow) { 656 /* skb->cb may be 64 bit address */ 657 rtlpriv->cfg->ops->set_desc(hw, (u8 *)entry, false, 658 HW_DESC_RX_PREPARE, 659 (u8 *)(dma_addr_t *)skb->cb); 660 } else { 661 rtlpriv->cfg->ops->set_desc(hw, (u8 *)entry, false, 662 HW_DESC_RXBUFF_ADDR, 663 (u8 *)&bufferaddress); 664 rtlpriv->cfg->ops->set_desc(hw, (u8 *)entry, false, 665 HW_DESC_RXPKT_LEN, 666 (u8 *)&rtlpci->rxbuffersize); 667 rtlpriv->cfg->ops->set_desc(hw, (u8 *)entry, false, 668 HW_DESC_RXOWN, 669 (u8 *)&tmp_one); 670 } 671 return 1; 672 } 673 674 /* inorder to receive 8K AMSDU we have set skb to 675 * 9100bytes in init rx ring, but if this packet is 676 * not a AMSDU, this large packet will be sent to 677 * TCP/IP directly, this cause big packet ping fail 678 * like: "ping -s 65507", so here we will realloc skb 679 * based on the true size of packet, Mac80211 680 * Probably will do it better, but does not yet. 681 * 682 * Some platform will fail when alloc skb sometimes. 683 * in this condition, we will send the old skb to 684 * mac80211 directly, this will not cause any other 685 * issues, but only this packet will be lost by TCP/IP 686 */ 687 static void _rtl_pci_rx_to_mac80211(struct ieee80211_hw *hw, 688 struct sk_buff *skb, 689 struct ieee80211_rx_status rx_status) 690 { 691 if (unlikely(!rtl_action_proc(hw, skb, false))) { 692 dev_kfree_skb_any(skb); 693 } else { 694 struct sk_buff *uskb = NULL; 695 696 uskb = dev_alloc_skb(skb->len + 128); 697 if (likely(uskb)) { 698 memcpy(IEEE80211_SKB_RXCB(uskb), &rx_status, 699 sizeof(rx_status)); 700 skb_put_data(uskb, skb->data, skb->len); 701 dev_kfree_skb_any(skb); 702 ieee80211_rx_irqsafe(hw, uskb); 703 } else { 704 ieee80211_rx_irqsafe(hw, skb); 705 } 706 } 707 } 708 709 /*hsisr interrupt handler*/ 710 static void _rtl_pci_hs_interrupt(struct ieee80211_hw *hw) 711 { 712 struct rtl_priv *rtlpriv = rtl_priv(hw); 713 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 714 715 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[MAC_HSISR], 716 rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[MAC_HSISR]) | 717 rtlpci->sys_irq_mask); 718 } 719 720 static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw) 721 { 722 struct rtl_priv *rtlpriv = rtl_priv(hw); 723 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 724 int rxring_idx = RTL_PCI_RX_MPDU_QUEUE; 725 struct ieee80211_rx_status rx_status = { 0 }; 726 unsigned int count = rtlpci->rxringcount; 727 u8 own; 728 u8 tmp_one; 729 bool unicast = false; 730 u8 hw_queue = 0; 731 unsigned int rx_remained_cnt = 0; 732 struct rtl_stats stats = { 733 .signal = 0, 734 .rate = 0, 735 }; 736 737 /*RX NORMAL PKT */ 738 while (count--) { 739 struct ieee80211_hdr *hdr; 740 __le16 fc; 741 u16 len; 742 /*rx buffer descriptor */ 743 struct rtl_rx_buffer_desc *buffer_desc = NULL; 744 /*if use new trx flow, it means wifi info */ 745 struct rtl_rx_desc *pdesc = NULL; 746 /*rx pkt */ 747 struct sk_buff *skb = rtlpci->rx_ring[rxring_idx].rx_buf[ 748 rtlpci->rx_ring[rxring_idx].idx]; 749 struct sk_buff *new_skb; 750 751 if (rtlpriv->use_new_trx_flow) { 752 if (rx_remained_cnt == 0) 753 rx_remained_cnt = 754 rtlpriv->cfg->ops->rx_desc_buff_remained_cnt(hw, 755 hw_queue); 756 if (rx_remained_cnt == 0) 757 return; 758 buffer_desc = &rtlpci->rx_ring[rxring_idx].buffer_desc[ 759 rtlpci->rx_ring[rxring_idx].idx]; 760 pdesc = (struct rtl_rx_desc *)skb->data; 761 } else { /* rx descriptor */ 762 pdesc = &rtlpci->rx_ring[rxring_idx].desc[ 763 rtlpci->rx_ring[rxring_idx].idx]; 764 765 own = (u8)rtlpriv->cfg->ops->get_desc(hw, (u8 *)pdesc, 766 false, 767 HW_DESC_OWN); 768 if (own) /* wait data to be filled by hardware */ 769 return; 770 } 771 772 /* Reaching this point means: data is filled already 773 * AAAAAAttention !!! 774 * We can NOT access 'skb' before 'pci_unmap_single' 775 */ 776 pci_unmap_single(rtlpci->pdev, *((dma_addr_t *)skb->cb), 777 rtlpci->rxbuffersize, PCI_DMA_FROMDEVICE); 778 779 /* get a new skb - if fail, old one will be reused */ 780 new_skb = dev_alloc_skb(rtlpci->rxbuffersize); 781 if (unlikely(!new_skb)) 782 goto no_new; 783 memset(&rx_status, 0, sizeof(rx_status)); 784 rtlpriv->cfg->ops->query_rx_desc(hw, &stats, 785 &rx_status, (u8 *)pdesc, skb); 786 787 if (rtlpriv->use_new_trx_flow) 788 rtlpriv->cfg->ops->rx_check_dma_ok(hw, 789 (u8 *)buffer_desc, 790 hw_queue); 791 792 len = rtlpriv->cfg->ops->get_desc(hw, (u8 *)pdesc, false, 793 HW_DESC_RXPKT_LEN); 794 795 if (skb->end - skb->tail > len) { 796 skb_put(skb, len); 797 if (rtlpriv->use_new_trx_flow) 798 skb_reserve(skb, stats.rx_drvinfo_size + 799 stats.rx_bufshift + 24); 800 else 801 skb_reserve(skb, stats.rx_drvinfo_size + 802 stats.rx_bufshift); 803 } else { 804 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, 805 "skb->end - skb->tail = %d, len is %d\n", 806 skb->end - skb->tail, len); 807 dev_kfree_skb_any(skb); 808 goto new_trx_end; 809 } 810 /* handle command packet here */ 811 if (stats.packet_report_type == C2H_PACKET) { 812 rtl_c2hcmd_enqueue(hw, skb); 813 goto new_trx_end; 814 } 815 816 /* NOTICE This can not be use for mac80211, 817 * this is done in mac80211 code, 818 * if done here sec DHCP will fail 819 * skb_trim(skb, skb->len - 4); 820 */ 821 822 hdr = rtl_get_hdr(skb); 823 fc = rtl_get_fc(skb); 824 825 if (!stats.crc && !stats.hwerror) { 826 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, 827 sizeof(rx_status)); 828 829 if (is_broadcast_ether_addr(hdr->addr1)) { 830 ;/*TODO*/ 831 } else if (is_multicast_ether_addr(hdr->addr1)) { 832 ;/*TODO*/ 833 } else { 834 unicast = true; 835 rtlpriv->stats.rxbytesunicast += skb->len; 836 } 837 rtl_is_special_data(hw, skb, false, true); 838 839 if (ieee80211_is_data(fc)) { 840 rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX); 841 if (unicast) 842 rtlpriv->link_info.num_rx_inperiod++; 843 } 844 845 rtl_collect_scan_list(hw, skb); 846 847 /* static bcn for roaming */ 848 rtl_beacon_statistic(hw, skb); 849 rtl_p2p_info(hw, (void *)skb->data, skb->len); 850 /* for sw lps */ 851 rtl_swlps_beacon(hw, (void *)skb->data, skb->len); 852 rtl_recognize_peer(hw, (void *)skb->data, skb->len); 853 if (rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP && 854 rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G && 855 (ieee80211_is_beacon(fc) || 856 ieee80211_is_probe_resp(fc))) { 857 dev_kfree_skb_any(skb); 858 } else { 859 _rtl_pci_rx_to_mac80211(hw, skb, rx_status); 860 } 861 } else { 862 dev_kfree_skb_any(skb); 863 } 864 new_trx_end: 865 if (rtlpriv->use_new_trx_flow) { 866 rtlpci->rx_ring[hw_queue].next_rx_rp += 1; 867 rtlpci->rx_ring[hw_queue].next_rx_rp %= 868 RTL_PCI_MAX_RX_COUNT; 869 870 rx_remained_cnt--; 871 rtl_write_word(rtlpriv, 0x3B4, 872 rtlpci->rx_ring[hw_queue].next_rx_rp); 873 } 874 if (((rtlpriv->link_info.num_rx_inperiod + 875 rtlpriv->link_info.num_tx_inperiod) > 8) || 876 rtlpriv->link_info.num_rx_inperiod > 2) 877 rtl_lps_leave(hw); 878 skb = new_skb; 879 no_new: 880 if (rtlpriv->use_new_trx_flow) { 881 _rtl_pci_init_one_rxdesc(hw, skb, (u8 *)buffer_desc, 882 rxring_idx, 883 rtlpci->rx_ring[rxring_idx].idx); 884 } else { 885 _rtl_pci_init_one_rxdesc(hw, skb, (u8 *)pdesc, 886 rxring_idx, 887 rtlpci->rx_ring[rxring_idx].idx); 888 if (rtlpci->rx_ring[rxring_idx].idx == 889 rtlpci->rxringcount - 1) 890 rtlpriv->cfg->ops->set_desc(hw, (u8 *)pdesc, 891 false, 892 HW_DESC_RXERO, 893 (u8 *)&tmp_one); 894 } 895 rtlpci->rx_ring[rxring_idx].idx = 896 (rtlpci->rx_ring[rxring_idx].idx + 1) % 897 rtlpci->rxringcount; 898 } 899 } 900 901 static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id) 902 { 903 struct ieee80211_hw *hw = dev_id; 904 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 905 struct rtl_priv *rtlpriv = rtl_priv(hw); 906 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 907 unsigned long flags; 908 struct rtl_int intvec = {0}; 909 910 irqreturn_t ret = IRQ_HANDLED; 911 912 if (rtlpci->irq_enabled == 0) 913 return ret; 914 915 spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags); 916 rtlpriv->cfg->ops->disable_interrupt(hw); 917 918 /*read ISR: 4/8bytes */ 919 rtlpriv->cfg->ops->interrupt_recognized(hw, &intvec); 920 921 /*Shared IRQ or HW disappeared */ 922 if (!intvec.inta || intvec.inta == 0xffff) 923 goto done; 924 925 /*<1> beacon related */ 926 if (intvec.inta & rtlpriv->cfg->maps[RTL_IMR_TBDOK]) 927 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, 928 "beacon ok interrupt!\n"); 929 930 if (unlikely(intvec.inta & rtlpriv->cfg->maps[RTL_IMR_TBDER])) 931 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, 932 "beacon err interrupt!\n"); 933 934 if (intvec.inta & rtlpriv->cfg->maps[RTL_IMR_BDOK]) 935 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, "beacon interrupt!\n"); 936 937 if (intvec.inta & rtlpriv->cfg->maps[RTL_IMR_BCNINT]) { 938 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, 939 "prepare beacon for interrupt!\n"); 940 tasklet_schedule(&rtlpriv->works.irq_prepare_bcn_tasklet); 941 } 942 943 /*<2> Tx related */ 944 if (unlikely(intvec.intb & rtlpriv->cfg->maps[RTL_IMR_TXFOVW])) 945 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, "IMR_TXFOVW!\n"); 946 947 if (intvec.inta & rtlpriv->cfg->maps[RTL_IMR_MGNTDOK]) { 948 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, 949 "Manage ok interrupt!\n"); 950 _rtl_pci_tx_isr(hw, MGNT_QUEUE); 951 } 952 953 if (intvec.inta & rtlpriv->cfg->maps[RTL_IMR_HIGHDOK]) { 954 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, 955 "HIGH_QUEUE ok interrupt!\n"); 956 _rtl_pci_tx_isr(hw, HIGH_QUEUE); 957 } 958 959 if (intvec.inta & rtlpriv->cfg->maps[RTL_IMR_BKDOK]) { 960 rtlpriv->link_info.num_tx_inperiod++; 961 962 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, 963 "BK Tx OK interrupt!\n"); 964 _rtl_pci_tx_isr(hw, BK_QUEUE); 965 } 966 967 if (intvec.inta & rtlpriv->cfg->maps[RTL_IMR_BEDOK]) { 968 rtlpriv->link_info.num_tx_inperiod++; 969 970 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, 971 "BE TX OK interrupt!\n"); 972 _rtl_pci_tx_isr(hw, BE_QUEUE); 973 } 974 975 if (intvec.inta & rtlpriv->cfg->maps[RTL_IMR_VIDOK]) { 976 rtlpriv->link_info.num_tx_inperiod++; 977 978 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, 979 "VI TX OK interrupt!\n"); 980 _rtl_pci_tx_isr(hw, VI_QUEUE); 981 } 982 983 if (intvec.inta & rtlpriv->cfg->maps[RTL_IMR_VODOK]) { 984 rtlpriv->link_info.num_tx_inperiod++; 985 986 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, 987 "Vo TX OK interrupt!\n"); 988 _rtl_pci_tx_isr(hw, VO_QUEUE); 989 } 990 991 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) { 992 if (intvec.intd & rtlpriv->cfg->maps[RTL_IMR_H2CDOK]) { 993 rtlpriv->link_info.num_tx_inperiod++; 994 995 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, 996 "H2C TX OK interrupt!\n"); 997 _rtl_pci_tx_isr(hw, H2C_QUEUE); 998 } 999 } 1000 1001 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) { 1002 if (intvec.inta & rtlpriv->cfg->maps[RTL_IMR_COMDOK]) { 1003 rtlpriv->link_info.num_tx_inperiod++; 1004 1005 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, 1006 "CMD TX OK interrupt!\n"); 1007 _rtl_pci_tx_isr(hw, TXCMD_QUEUE); 1008 } 1009 } 1010 1011 /*<3> Rx related */ 1012 if (intvec.inta & rtlpriv->cfg->maps[RTL_IMR_ROK]) { 1013 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, "Rx ok interrupt!\n"); 1014 _rtl_pci_rx_interrupt(hw); 1015 } 1016 1017 if (unlikely(intvec.inta & rtlpriv->cfg->maps[RTL_IMR_RDU])) { 1018 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, 1019 "rx descriptor unavailable!\n"); 1020 _rtl_pci_rx_interrupt(hw); 1021 } 1022 1023 if (unlikely(intvec.intb & rtlpriv->cfg->maps[RTL_IMR_RXFOVW])) { 1024 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, "rx overflow !\n"); 1025 _rtl_pci_rx_interrupt(hw); 1026 } 1027 1028 /*<4> fw related*/ 1029 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8723AE) { 1030 if (intvec.inta & rtlpriv->cfg->maps[RTL_IMR_C2HCMD]) { 1031 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, 1032 "firmware interrupt!\n"); 1033 queue_delayed_work(rtlpriv->works.rtl_wq, 1034 &rtlpriv->works.fwevt_wq, 0); 1035 } 1036 } 1037 1038 /*<5> hsisr related*/ 1039 /* Only 8188EE & 8723BE Supported. 1040 * If Other ICs Come in, System will corrupt, 1041 * because maps[RTL_IMR_HSISR_IND] & maps[MAC_HSISR] 1042 * are not initialized 1043 */ 1044 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8188EE || 1045 rtlhal->hw_type == HARDWARE_TYPE_RTL8723BE) { 1046 if (unlikely(intvec.inta & 1047 rtlpriv->cfg->maps[RTL_IMR_HSISR_IND])) { 1048 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, 1049 "hsisr interrupt!\n"); 1050 _rtl_pci_hs_interrupt(hw); 1051 } 1052 } 1053 1054 if (rtlpriv->rtlhal.earlymode_enable) 1055 tasklet_schedule(&rtlpriv->works.irq_tasklet); 1056 1057 done: 1058 rtlpriv->cfg->ops->enable_interrupt(hw); 1059 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); 1060 return ret; 1061 } 1062 1063 static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw) 1064 { 1065 _rtl_pci_tx_chk_waitq(hw); 1066 } 1067 1068 static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw) 1069 { 1070 struct rtl_priv *rtlpriv = rtl_priv(hw); 1071 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 1072 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1073 struct rtl8192_tx_ring *ring = NULL; 1074 struct ieee80211_hdr *hdr = NULL; 1075 struct ieee80211_tx_info *info = NULL; 1076 struct sk_buff *pskb = NULL; 1077 struct rtl_tx_desc *pdesc = NULL; 1078 struct rtl_tcb_desc tcb_desc; 1079 /*This is for new trx flow*/ 1080 struct rtl_tx_buffer_desc *pbuffer_desc = NULL; 1081 u8 temp_one = 1; 1082 u8 *entry; 1083 1084 memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); 1085 ring = &rtlpci->tx_ring[BEACON_QUEUE]; 1086 pskb = __skb_dequeue(&ring->queue); 1087 if (rtlpriv->use_new_trx_flow) 1088 entry = (u8 *)(&ring->buffer_desc[ring->idx]); 1089 else 1090 entry = (u8 *)(&ring->desc[ring->idx]); 1091 if (pskb) { 1092 pci_unmap_single(rtlpci->pdev, 1093 rtlpriv->cfg->ops->get_desc( 1094 hw, (u8 *)entry, true, HW_DESC_TXBUFF_ADDR), 1095 pskb->len, PCI_DMA_TODEVICE); 1096 kfree_skb(pskb); 1097 } 1098 1099 /*NB: the beacon data buffer must be 32-bit aligned. */ 1100 pskb = ieee80211_beacon_get(hw, mac->vif); 1101 if (!pskb) 1102 return; 1103 hdr = rtl_get_hdr(pskb); 1104 info = IEEE80211_SKB_CB(pskb); 1105 pdesc = &ring->desc[0]; 1106 if (rtlpriv->use_new_trx_flow) 1107 pbuffer_desc = &ring->buffer_desc[0]; 1108 1109 rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, 1110 (u8 *)pbuffer_desc, info, NULL, pskb, 1111 BEACON_QUEUE, &tcb_desc); 1112 1113 __skb_queue_tail(&ring->queue, pskb); 1114 1115 if (rtlpriv->use_new_trx_flow) { 1116 temp_one = 4; 1117 rtlpriv->cfg->ops->set_desc(hw, (u8 *)pbuffer_desc, true, 1118 HW_DESC_OWN, (u8 *)&temp_one); 1119 } else { 1120 rtlpriv->cfg->ops->set_desc(hw, (u8 *)pdesc, true, HW_DESC_OWN, 1121 &temp_one); 1122 } 1123 } 1124 1125 static void _rtl_pci_init_trx_var(struct ieee80211_hw *hw) 1126 { 1127 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 1128 struct rtl_priv *rtlpriv = rtl_priv(hw); 1129 struct rtl_hal *rtlhal = rtl_hal(rtlpriv); 1130 u8 i; 1131 u16 desc_num; 1132 1133 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192EE) 1134 desc_num = TX_DESC_NUM_92E; 1135 else if (rtlhal->hw_type == HARDWARE_TYPE_RTL8822BE) 1136 desc_num = TX_DESC_NUM_8822B; 1137 else 1138 desc_num = RT_TXDESC_NUM; 1139 1140 for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) 1141 rtlpci->txringcount[i] = desc_num; 1142 1143 /*we just alloc 2 desc for beacon queue, 1144 *because we just need first desc in hw beacon. 1145 */ 1146 rtlpci->txringcount[BEACON_QUEUE] = 2; 1147 1148 /*BE queue need more descriptor for performance 1149 *consideration or, No more tx desc will happen, 1150 *and may cause mac80211 mem leakage. 1151 */ 1152 if (!rtl_priv(hw)->use_new_trx_flow) 1153 rtlpci->txringcount[BE_QUEUE] = RT_TXDESC_NUM_BE_QUEUE; 1154 1155 rtlpci->rxbuffersize = 9100; /*2048/1024; */ 1156 rtlpci->rxringcount = RTL_PCI_MAX_RX_COUNT; /*64; */ 1157 } 1158 1159 static void _rtl_pci_init_struct(struct ieee80211_hw *hw, 1160 struct pci_dev *pdev) 1161 { 1162 struct rtl_priv *rtlpriv = rtl_priv(hw); 1163 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1164 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 1165 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 1166 1167 rtlpci->up_first_time = true; 1168 rtlpci->being_init_adapter = false; 1169 1170 rtlhal->hw = hw; 1171 rtlpci->pdev = pdev; 1172 1173 /*Tx/Rx related var */ 1174 _rtl_pci_init_trx_var(hw); 1175 1176 /*IBSS*/ 1177 mac->beacon_interval = 100; 1178 1179 /*AMPDU*/ 1180 mac->min_space_cfg = 0; 1181 mac->max_mss_density = 0; 1182 /*set sane AMPDU defaults */ 1183 mac->current_ampdu_density = 7; 1184 mac->current_ampdu_factor = 3; 1185 1186 /*Retry Limit*/ 1187 mac->retry_short = 7; 1188 mac->retry_long = 7; 1189 1190 /*QOS*/ 1191 rtlpci->acm_method = EACMWAY2_SW; 1192 1193 /*task */ 1194 tasklet_init(&rtlpriv->works.irq_tasklet, 1195 (void (*)(unsigned long))_rtl_pci_irq_tasklet, 1196 (unsigned long)hw); 1197 tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet, 1198 (void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet, 1199 (unsigned long)hw); 1200 INIT_WORK(&rtlpriv->works.lps_change_work, 1201 rtl_lps_change_work_callback); 1202 } 1203 1204 static int _rtl_pci_init_tx_ring(struct ieee80211_hw *hw, 1205 unsigned int prio, unsigned int entries) 1206 { 1207 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 1208 struct rtl_priv *rtlpriv = rtl_priv(hw); 1209 struct rtl_tx_buffer_desc *buffer_desc; 1210 struct rtl_tx_desc *desc; 1211 dma_addr_t buffer_desc_dma, desc_dma; 1212 u32 nextdescaddress; 1213 int i; 1214 1215 /* alloc tx buffer desc for new trx flow*/ 1216 if (rtlpriv->use_new_trx_flow) { 1217 buffer_desc = 1218 pci_zalloc_consistent(rtlpci->pdev, 1219 sizeof(*buffer_desc) * entries, 1220 &buffer_desc_dma); 1221 1222 if (!buffer_desc || (unsigned long)buffer_desc & 0xFF) { 1223 pr_err("Cannot allocate TX ring (prio = %d)\n", 1224 prio); 1225 return -ENOMEM; 1226 } 1227 1228 rtlpci->tx_ring[prio].buffer_desc = buffer_desc; 1229 rtlpci->tx_ring[prio].buffer_desc_dma = buffer_desc_dma; 1230 1231 rtlpci->tx_ring[prio].cur_tx_rp = 0; 1232 rtlpci->tx_ring[prio].cur_tx_wp = 0; 1233 } 1234 1235 /* alloc dma for this ring */ 1236 desc = pci_zalloc_consistent(rtlpci->pdev, 1237 sizeof(*desc) * entries, &desc_dma); 1238 1239 if (!desc || (unsigned long)desc & 0xFF) { 1240 pr_err("Cannot allocate TX ring (prio = %d)\n", prio); 1241 return -ENOMEM; 1242 } 1243 1244 rtlpci->tx_ring[prio].desc = desc; 1245 rtlpci->tx_ring[prio].dma = desc_dma; 1246 1247 rtlpci->tx_ring[prio].idx = 0; 1248 rtlpci->tx_ring[prio].entries = entries; 1249 skb_queue_head_init(&rtlpci->tx_ring[prio].queue); 1250 1251 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, "queue:%d, ring_addr:%p\n", 1252 prio, desc); 1253 1254 /* init every desc in this ring */ 1255 if (!rtlpriv->use_new_trx_flow) { 1256 for (i = 0; i < entries; i++) { 1257 nextdescaddress = (u32)desc_dma + 1258 ((i + 1) % entries) * 1259 sizeof(*desc); 1260 1261 rtlpriv->cfg->ops->set_desc(hw, (u8 *)&desc[i], 1262 true, 1263 HW_DESC_TX_NEXTDESC_ADDR, 1264 (u8 *)&nextdescaddress); 1265 } 1266 } 1267 return 0; 1268 } 1269 1270 static int _rtl_pci_init_rx_ring(struct ieee80211_hw *hw, int rxring_idx) 1271 { 1272 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 1273 struct rtl_priv *rtlpriv = rtl_priv(hw); 1274 int i; 1275 1276 if (rtlpriv->use_new_trx_flow) { 1277 struct rtl_rx_buffer_desc *entry = NULL; 1278 /* alloc dma for this ring */ 1279 rtlpci->rx_ring[rxring_idx].buffer_desc = 1280 pci_zalloc_consistent(rtlpci->pdev, 1281 sizeof(*rtlpci->rx_ring[rxring_idx]. 1282 buffer_desc) * 1283 rtlpci->rxringcount, 1284 &rtlpci->rx_ring[rxring_idx].dma); 1285 if (!rtlpci->rx_ring[rxring_idx].buffer_desc || 1286 (ulong)rtlpci->rx_ring[rxring_idx].buffer_desc & 0xFF) { 1287 pr_err("Cannot allocate RX ring\n"); 1288 return -ENOMEM; 1289 } 1290 1291 /* init every desc in this ring */ 1292 rtlpci->rx_ring[rxring_idx].idx = 0; 1293 for (i = 0; i < rtlpci->rxringcount; i++) { 1294 entry = &rtlpci->rx_ring[rxring_idx].buffer_desc[i]; 1295 if (!_rtl_pci_init_one_rxdesc(hw, NULL, (u8 *)entry, 1296 rxring_idx, i)) 1297 return -ENOMEM; 1298 } 1299 } else { 1300 struct rtl_rx_desc *entry = NULL; 1301 u8 tmp_one = 1; 1302 /* alloc dma for this ring */ 1303 rtlpci->rx_ring[rxring_idx].desc = 1304 pci_zalloc_consistent(rtlpci->pdev, 1305 sizeof(*rtlpci->rx_ring[rxring_idx]. 1306 desc) * rtlpci->rxringcount, 1307 &rtlpci->rx_ring[rxring_idx].dma); 1308 if (!rtlpci->rx_ring[rxring_idx].desc || 1309 (unsigned long)rtlpci->rx_ring[rxring_idx].desc & 0xFF) { 1310 pr_err("Cannot allocate RX ring\n"); 1311 return -ENOMEM; 1312 } 1313 1314 /* init every desc in this ring */ 1315 rtlpci->rx_ring[rxring_idx].idx = 0; 1316 1317 for (i = 0; i < rtlpci->rxringcount; i++) { 1318 entry = &rtlpci->rx_ring[rxring_idx].desc[i]; 1319 if (!_rtl_pci_init_one_rxdesc(hw, NULL, (u8 *)entry, 1320 rxring_idx, i)) 1321 return -ENOMEM; 1322 } 1323 1324 rtlpriv->cfg->ops->set_desc(hw, (u8 *)entry, false, 1325 HW_DESC_RXERO, &tmp_one); 1326 } 1327 return 0; 1328 } 1329 1330 static void _rtl_pci_free_tx_ring(struct ieee80211_hw *hw, 1331 unsigned int prio) 1332 { 1333 struct rtl_priv *rtlpriv = rtl_priv(hw); 1334 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 1335 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio]; 1336 1337 /* free every desc in this ring */ 1338 while (skb_queue_len(&ring->queue)) { 1339 u8 *entry; 1340 struct sk_buff *skb = __skb_dequeue(&ring->queue); 1341 1342 if (rtlpriv->use_new_trx_flow) 1343 entry = (u8 *)(&ring->buffer_desc[ring->idx]); 1344 else 1345 entry = (u8 *)(&ring->desc[ring->idx]); 1346 1347 pci_unmap_single(rtlpci->pdev, 1348 rtlpriv->cfg->ops->get_desc(hw, (u8 *)entry, 1349 true, 1350 HW_DESC_TXBUFF_ADDR), 1351 skb->len, PCI_DMA_TODEVICE); 1352 kfree_skb(skb); 1353 ring->idx = (ring->idx + 1) % ring->entries; 1354 } 1355 1356 /* free dma of this ring */ 1357 pci_free_consistent(rtlpci->pdev, 1358 sizeof(*ring->desc) * ring->entries, 1359 ring->desc, ring->dma); 1360 ring->desc = NULL; 1361 if (rtlpriv->use_new_trx_flow) { 1362 pci_free_consistent(rtlpci->pdev, 1363 sizeof(*ring->buffer_desc) * ring->entries, 1364 ring->buffer_desc, ring->buffer_desc_dma); 1365 ring->buffer_desc = NULL; 1366 } 1367 } 1368 1369 static void _rtl_pci_free_rx_ring(struct ieee80211_hw *hw, int rxring_idx) 1370 { 1371 struct rtl_priv *rtlpriv = rtl_priv(hw); 1372 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 1373 int i; 1374 1375 /* free every desc in this ring */ 1376 for (i = 0; i < rtlpci->rxringcount; i++) { 1377 struct sk_buff *skb = rtlpci->rx_ring[rxring_idx].rx_buf[i]; 1378 1379 if (!skb) 1380 continue; 1381 pci_unmap_single(rtlpci->pdev, *((dma_addr_t *)skb->cb), 1382 rtlpci->rxbuffersize, PCI_DMA_FROMDEVICE); 1383 kfree_skb(skb); 1384 } 1385 1386 /* free dma of this ring */ 1387 if (rtlpriv->use_new_trx_flow) { 1388 pci_free_consistent(rtlpci->pdev, 1389 sizeof(*rtlpci->rx_ring[rxring_idx]. 1390 buffer_desc) * rtlpci->rxringcount, 1391 rtlpci->rx_ring[rxring_idx].buffer_desc, 1392 rtlpci->rx_ring[rxring_idx].dma); 1393 rtlpci->rx_ring[rxring_idx].buffer_desc = NULL; 1394 } else { 1395 pci_free_consistent(rtlpci->pdev, 1396 sizeof(*rtlpci->rx_ring[rxring_idx].desc) * 1397 rtlpci->rxringcount, 1398 rtlpci->rx_ring[rxring_idx].desc, 1399 rtlpci->rx_ring[rxring_idx].dma); 1400 rtlpci->rx_ring[rxring_idx].desc = NULL; 1401 } 1402 } 1403 1404 static int _rtl_pci_init_trx_ring(struct ieee80211_hw *hw) 1405 { 1406 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 1407 int ret; 1408 int i, rxring_idx; 1409 1410 /* rxring_idx 0:RX_MPDU_QUEUE 1411 * rxring_idx 1:RX_CMD_QUEUE 1412 */ 1413 for (rxring_idx = 0; rxring_idx < RTL_PCI_MAX_RX_QUEUE; rxring_idx++) { 1414 ret = _rtl_pci_init_rx_ring(hw, rxring_idx); 1415 if (ret) 1416 return ret; 1417 } 1418 1419 for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) { 1420 ret = _rtl_pci_init_tx_ring(hw, i, rtlpci->txringcount[i]); 1421 if (ret) 1422 goto err_free_rings; 1423 } 1424 1425 return 0; 1426 1427 err_free_rings: 1428 for (rxring_idx = 0; rxring_idx < RTL_PCI_MAX_RX_QUEUE; rxring_idx++) 1429 _rtl_pci_free_rx_ring(hw, rxring_idx); 1430 1431 for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) 1432 if (rtlpci->tx_ring[i].desc || 1433 rtlpci->tx_ring[i].buffer_desc) 1434 _rtl_pci_free_tx_ring(hw, i); 1435 1436 return 1; 1437 } 1438 1439 static int _rtl_pci_deinit_trx_ring(struct ieee80211_hw *hw) 1440 { 1441 u32 i, rxring_idx; 1442 1443 /*free rx rings */ 1444 for (rxring_idx = 0; rxring_idx < RTL_PCI_MAX_RX_QUEUE; rxring_idx++) 1445 _rtl_pci_free_rx_ring(hw, rxring_idx); 1446 1447 /*free tx rings */ 1448 for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) 1449 _rtl_pci_free_tx_ring(hw, i); 1450 1451 return 0; 1452 } 1453 1454 int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw) 1455 { 1456 struct rtl_priv *rtlpriv = rtl_priv(hw); 1457 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 1458 int i, rxring_idx; 1459 unsigned long flags; 1460 u8 tmp_one = 1; 1461 u32 bufferaddress; 1462 /* rxring_idx 0:RX_MPDU_QUEUE */ 1463 /* rxring_idx 1:RX_CMD_QUEUE */ 1464 for (rxring_idx = 0; rxring_idx < RTL_PCI_MAX_RX_QUEUE; rxring_idx++) { 1465 /* force the rx_ring[RX_MPDU_QUEUE/ 1466 * RX_CMD_QUEUE].idx to the first one 1467 *new trx flow, do nothing 1468 */ 1469 if (!rtlpriv->use_new_trx_flow && 1470 rtlpci->rx_ring[rxring_idx].desc) { 1471 struct rtl_rx_desc *entry = NULL; 1472 1473 rtlpci->rx_ring[rxring_idx].idx = 0; 1474 for (i = 0; i < rtlpci->rxringcount; i++) { 1475 entry = &rtlpci->rx_ring[rxring_idx].desc[i]; 1476 bufferaddress = 1477 rtlpriv->cfg->ops->get_desc(hw, (u8 *)entry, 1478 false, HW_DESC_RXBUFF_ADDR); 1479 memset((u8 *)entry, 0, 1480 sizeof(*rtlpci->rx_ring 1481 [rxring_idx].desc));/*clear one entry*/ 1482 if (rtlpriv->use_new_trx_flow) { 1483 rtlpriv->cfg->ops->set_desc(hw, 1484 (u8 *)entry, false, 1485 HW_DESC_RX_PREPARE, 1486 (u8 *)&bufferaddress); 1487 } else { 1488 rtlpriv->cfg->ops->set_desc(hw, 1489 (u8 *)entry, false, 1490 HW_DESC_RXBUFF_ADDR, 1491 (u8 *)&bufferaddress); 1492 rtlpriv->cfg->ops->set_desc(hw, 1493 (u8 *)entry, false, 1494 HW_DESC_RXPKT_LEN, 1495 (u8 *)&rtlpci->rxbuffersize); 1496 rtlpriv->cfg->ops->set_desc(hw, 1497 (u8 *)entry, false, 1498 HW_DESC_RXOWN, 1499 (u8 *)&tmp_one); 1500 } 1501 } 1502 rtlpriv->cfg->ops->set_desc(hw, (u8 *)entry, false, 1503 HW_DESC_RXERO, (u8 *)&tmp_one); 1504 } 1505 rtlpci->rx_ring[rxring_idx].idx = 0; 1506 } 1507 1508 /*after reset, release previous pending packet, 1509 *and force the tx idx to the first one 1510 */ 1511 spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags); 1512 for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) { 1513 if (rtlpci->tx_ring[i].desc || 1514 rtlpci->tx_ring[i].buffer_desc) { 1515 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[i]; 1516 1517 while (skb_queue_len(&ring->queue)) { 1518 u8 *entry; 1519 struct sk_buff *skb = 1520 __skb_dequeue(&ring->queue); 1521 if (rtlpriv->use_new_trx_flow) 1522 entry = (u8 *)(&ring->buffer_desc 1523 [ring->idx]); 1524 else 1525 entry = (u8 *)(&ring->desc[ring->idx]); 1526 1527 pci_unmap_single(rtlpci->pdev, 1528 rtlpriv->cfg->ops-> 1529 get_desc(hw, (u8 *) 1530 entry, 1531 true, 1532 HW_DESC_TXBUFF_ADDR), 1533 skb->len, PCI_DMA_TODEVICE); 1534 dev_kfree_skb_irq(skb); 1535 ring->idx = (ring->idx + 1) % ring->entries; 1536 } 1537 1538 if (rtlpriv->use_new_trx_flow) { 1539 rtlpci->tx_ring[i].cur_tx_rp = 0; 1540 rtlpci->tx_ring[i].cur_tx_wp = 0; 1541 } 1542 1543 ring->idx = 0; 1544 ring->entries = rtlpci->txringcount[i]; 1545 } 1546 } 1547 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); 1548 1549 return 0; 1550 } 1551 1552 static bool rtl_pci_tx_chk_waitq_insert(struct ieee80211_hw *hw, 1553 struct ieee80211_sta *sta, 1554 struct sk_buff *skb) 1555 { 1556 struct rtl_priv *rtlpriv = rtl_priv(hw); 1557 struct rtl_sta_info *sta_entry = NULL; 1558 u8 tid = rtl_get_tid(skb); 1559 __le16 fc = rtl_get_fc(skb); 1560 1561 if (!sta) 1562 return false; 1563 sta_entry = (struct rtl_sta_info *)sta->drv_priv; 1564 1565 if (!rtlpriv->rtlhal.earlymode_enable) 1566 return false; 1567 if (ieee80211_is_nullfunc(fc)) 1568 return false; 1569 if (ieee80211_is_qos_nullfunc(fc)) 1570 return false; 1571 if (ieee80211_is_pspoll(fc)) 1572 return false; 1573 if (sta_entry->tids[tid].agg.agg_state != RTL_AGG_OPERATIONAL) 1574 return false; 1575 if (_rtl_mac_to_hwqueue(hw, skb) > VO_QUEUE) 1576 return false; 1577 if (tid > 7) 1578 return false; 1579 1580 /* maybe every tid should be checked */ 1581 if (!rtlpriv->link_info.higher_busytxtraffic[tid]) 1582 return false; 1583 1584 spin_lock_bh(&rtlpriv->locks.waitq_lock); 1585 skb_queue_tail(&rtlpriv->mac80211.skb_waitq[tid], skb); 1586 spin_unlock_bh(&rtlpriv->locks.waitq_lock); 1587 1588 return true; 1589 } 1590 1591 static int rtl_pci_tx(struct ieee80211_hw *hw, 1592 struct ieee80211_sta *sta, 1593 struct sk_buff *skb, 1594 struct rtl_tcb_desc *ptcb_desc) 1595 { 1596 struct rtl_priv *rtlpriv = rtl_priv(hw); 1597 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 1598 struct rtl8192_tx_ring *ring; 1599 struct rtl_tx_desc *pdesc; 1600 struct rtl_tx_buffer_desc *ptx_bd_desc = NULL; 1601 u16 idx; 1602 u8 hw_queue = _rtl_mac_to_hwqueue(hw, skb); 1603 unsigned long flags; 1604 struct ieee80211_hdr *hdr = rtl_get_hdr(skb); 1605 __le16 fc = rtl_get_fc(skb); 1606 u8 *pda_addr = hdr->addr1; 1607 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 1608 u8 own; 1609 u8 temp_one = 1; 1610 1611 if (ieee80211_is_mgmt(fc)) 1612 rtl_tx_mgmt_proc(hw, skb); 1613 1614 if (rtlpriv->psc.sw_ps_enabled) { 1615 if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) && 1616 !ieee80211_has_pm(fc)) 1617 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); 1618 } 1619 1620 rtl_action_proc(hw, skb, true); 1621 1622 if (is_multicast_ether_addr(pda_addr)) 1623 rtlpriv->stats.txbytesmulticast += skb->len; 1624 else if (is_broadcast_ether_addr(pda_addr)) 1625 rtlpriv->stats.txbytesbroadcast += skb->len; 1626 else 1627 rtlpriv->stats.txbytesunicast += skb->len; 1628 1629 spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags); 1630 ring = &rtlpci->tx_ring[hw_queue]; 1631 if (hw_queue != BEACON_QUEUE) { 1632 if (rtlpriv->use_new_trx_flow) 1633 idx = ring->cur_tx_wp; 1634 else 1635 idx = (ring->idx + skb_queue_len(&ring->queue)) % 1636 ring->entries; 1637 } else { 1638 idx = 0; 1639 } 1640 1641 pdesc = &ring->desc[idx]; 1642 if (rtlpriv->use_new_trx_flow) { 1643 ptx_bd_desc = &ring->buffer_desc[idx]; 1644 } else { 1645 own = (u8)rtlpriv->cfg->ops->get_desc(hw, (u8 *)pdesc, 1646 true, HW_DESC_OWN); 1647 1648 if (own == 1 && hw_queue != BEACON_QUEUE) { 1649 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, 1650 "No more TX desc@%d, ring->idx = %d, idx = %d, skb_queue_len = 0x%x\n", 1651 hw_queue, ring->idx, idx, 1652 skb_queue_len(&ring->queue)); 1653 1654 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, 1655 flags); 1656 return skb->len; 1657 } 1658 } 1659 1660 if (rtlpriv->cfg->ops->get_available_desc && 1661 rtlpriv->cfg->ops->get_available_desc(hw, hw_queue) == 0) { 1662 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, 1663 "get_available_desc fail\n"); 1664 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); 1665 return skb->len; 1666 } 1667 1668 if (ieee80211_is_data(fc)) 1669 rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX); 1670 1671 rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, 1672 (u8 *)ptx_bd_desc, info, sta, skb, hw_queue, ptcb_desc); 1673 1674 __skb_queue_tail(&ring->queue, skb); 1675 1676 if (rtlpriv->use_new_trx_flow) { 1677 rtlpriv->cfg->ops->set_desc(hw, (u8 *)pdesc, true, 1678 HW_DESC_OWN, &hw_queue); 1679 } else { 1680 rtlpriv->cfg->ops->set_desc(hw, (u8 *)pdesc, true, 1681 HW_DESC_OWN, &temp_one); 1682 } 1683 1684 if ((ring->entries - skb_queue_len(&ring->queue)) < 2 && 1685 hw_queue != BEACON_QUEUE) { 1686 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD, 1687 "less desc left, stop skb_queue@%d, ring->idx = %d, idx = %d, skb_queue_len = 0x%x\n", 1688 hw_queue, ring->idx, idx, 1689 skb_queue_len(&ring->queue)); 1690 1691 ieee80211_stop_queue(hw, skb_get_queue_mapping(skb)); 1692 } 1693 1694 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); 1695 1696 rtlpriv->cfg->ops->tx_polling(hw, hw_queue); 1697 1698 return 0; 1699 } 1700 1701 static void rtl_pci_flush(struct ieee80211_hw *hw, u32 queues, bool drop) 1702 { 1703 struct rtl_priv *rtlpriv = rtl_priv(hw); 1704 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 1705 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 1706 struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); 1707 u16 i = 0; 1708 int queue_id; 1709 struct rtl8192_tx_ring *ring; 1710 1711 if (mac->skip_scan) 1712 return; 1713 1714 for (queue_id = RTL_PCI_MAX_TX_QUEUE_COUNT - 1; queue_id >= 0;) { 1715 u32 queue_len; 1716 1717 if (((queues >> queue_id) & 0x1) == 0) { 1718 queue_id--; 1719 continue; 1720 } 1721 ring = &pcipriv->dev.tx_ring[queue_id]; 1722 queue_len = skb_queue_len(&ring->queue); 1723 if (queue_len == 0 || queue_id == BEACON_QUEUE || 1724 queue_id == TXCMD_QUEUE) { 1725 queue_id--; 1726 continue; 1727 } else { 1728 msleep(20); 1729 i++; 1730 } 1731 1732 /* we just wait 1s for all queues */ 1733 if (rtlpriv->psc.rfpwr_state == ERFOFF || 1734 is_hal_stop(rtlhal) || i >= 200) 1735 return; 1736 } 1737 } 1738 1739 static void rtl_pci_deinit(struct ieee80211_hw *hw) 1740 { 1741 struct rtl_priv *rtlpriv = rtl_priv(hw); 1742 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 1743 1744 _rtl_pci_deinit_trx_ring(hw); 1745 1746 synchronize_irq(rtlpci->pdev->irq); 1747 tasklet_kill(&rtlpriv->works.irq_tasklet); 1748 cancel_work_sync(&rtlpriv->works.lps_change_work); 1749 1750 flush_workqueue(rtlpriv->works.rtl_wq); 1751 destroy_workqueue(rtlpriv->works.rtl_wq); 1752 } 1753 1754 static int rtl_pci_init(struct ieee80211_hw *hw, struct pci_dev *pdev) 1755 { 1756 int err; 1757 1758 _rtl_pci_init_struct(hw, pdev); 1759 1760 err = _rtl_pci_init_trx_ring(hw); 1761 if (err) { 1762 pr_err("tx ring initialization failed\n"); 1763 return err; 1764 } 1765 1766 return 0; 1767 } 1768 1769 static int rtl_pci_start(struct ieee80211_hw *hw) 1770 { 1771 struct rtl_priv *rtlpriv = rtl_priv(hw); 1772 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 1773 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 1774 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 1775 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); 1776 struct rtl_btc_ops *btc_ops = rtlpriv->btcoexist.btc_ops; 1777 1778 int err; 1779 1780 rtl_pci_reset_trx_ring(hw); 1781 1782 rtlpci->driver_is_goingto_unload = false; 1783 if (rtlpriv->cfg->ops->get_btc_status && 1784 rtlpriv->cfg->ops->get_btc_status()) { 1785 rtlpriv->btcoexist.btc_info.ap_num = 36; 1786 btc_ops->btc_init_variables(rtlpriv); 1787 btc_ops->btc_init_hal_vars(rtlpriv); 1788 } else if (btc_ops) { 1789 btc_ops->btc_init_variables_wifi_only(rtlpriv); 1790 } 1791 1792 err = rtlpriv->cfg->ops->hw_init(hw); 1793 if (err) { 1794 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 1795 "Failed to config hardware!\n"); 1796 kfree(rtlpriv->btcoexist.btc_context); 1797 kfree(rtlpriv->btcoexist.wifi_only_context); 1798 return err; 1799 } 1800 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT, 1801 &rtlmac->retry_long); 1802 1803 rtlpriv->cfg->ops->enable_interrupt(hw); 1804 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, "enable_interrupt OK\n"); 1805 1806 rtl_init_rx_config(hw); 1807 1808 /*should be after adapter start and interrupt enable. */ 1809 set_hal_start(rtlhal); 1810 1811 RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC); 1812 1813 rtlpci->up_first_time = false; 1814 1815 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "%s OK\n", __func__); 1816 return 0; 1817 } 1818 1819 static void rtl_pci_stop(struct ieee80211_hw *hw) 1820 { 1821 struct rtl_priv *rtlpriv = rtl_priv(hw); 1822 struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); 1823 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); 1824 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 1825 unsigned long flags; 1826 u8 rf_timeout = 0; 1827 1828 if (rtlpriv->cfg->ops->get_btc_status()) 1829 rtlpriv->btcoexist.btc_ops->btc_halt_notify(rtlpriv); 1830 1831 if (rtlpriv->btcoexist.btc_ops) 1832 rtlpriv->btcoexist.btc_ops->btc_deinit_variables(rtlpriv); 1833 1834 /*should be before disable interrupt&adapter 1835 *and will do it immediately. 1836 */ 1837 set_hal_stop(rtlhal); 1838 1839 rtlpci->driver_is_goingto_unload = true; 1840 rtlpriv->cfg->ops->disable_interrupt(hw); 1841 cancel_work_sync(&rtlpriv->works.lps_change_work); 1842 1843 spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); 1844 while (ppsc->rfchange_inprogress) { 1845 spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags); 1846 if (rf_timeout > 100) { 1847 spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); 1848 break; 1849 } 1850 mdelay(1); 1851 rf_timeout++; 1852 spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); 1853 } 1854 ppsc->rfchange_inprogress = true; 1855 spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags); 1856 1857 rtlpriv->cfg->ops->hw_disable(hw); 1858 /* some things are not needed if firmware not available */ 1859 if (!rtlpriv->max_fw_size) 1860 return; 1861 rtlpriv->cfg->ops->led_control(hw, LED_CTL_POWER_OFF); 1862 1863 spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); 1864 ppsc->rfchange_inprogress = false; 1865 spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags); 1866 1867 rtl_pci_enable_aspm(hw); 1868 } 1869 1870 static bool _rtl_pci_find_adapter(struct pci_dev *pdev, 1871 struct ieee80211_hw *hw) 1872 { 1873 struct rtl_priv *rtlpriv = rtl_priv(hw); 1874 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 1875 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); 1876 struct pci_dev *bridge_pdev = pdev->bus->self; 1877 u16 venderid; 1878 u16 deviceid; 1879 u8 revisionid; 1880 u16 irqline; 1881 u8 tmp; 1882 1883 pcipriv->ndis_adapter.pcibridge_vendor = PCI_BRIDGE_VENDOR_UNKNOWN; 1884 venderid = pdev->vendor; 1885 deviceid = pdev->device; 1886 pci_read_config_byte(pdev, 0x8, &revisionid); 1887 pci_read_config_word(pdev, 0x3C, &irqline); 1888 1889 /* PCI ID 0x10ec:0x8192 occurs for both RTL8192E, which uses 1890 * r8192e_pci, and RTL8192SE, which uses this driver. If the 1891 * revision ID is RTL_PCI_REVISION_ID_8192PCIE (0x01), then 1892 * the correct driver is r8192e_pci, thus this routine should 1893 * return false. 1894 */ 1895 if (deviceid == RTL_PCI_8192SE_DID && 1896 revisionid == RTL_PCI_REVISION_ID_8192PCIE) 1897 return false; 1898 1899 if (deviceid == RTL_PCI_8192_DID || 1900 deviceid == RTL_PCI_0044_DID || 1901 deviceid == RTL_PCI_0047_DID || 1902 deviceid == RTL_PCI_8192SE_DID || 1903 deviceid == RTL_PCI_8174_DID || 1904 deviceid == RTL_PCI_8173_DID || 1905 deviceid == RTL_PCI_8172_DID || 1906 deviceid == RTL_PCI_8171_DID) { 1907 switch (revisionid) { 1908 case RTL_PCI_REVISION_ID_8192PCIE: 1909 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 1910 "8192 PCI-E is found - vid/did=%x/%x\n", 1911 venderid, deviceid); 1912 rtlhal->hw_type = HARDWARE_TYPE_RTL8192E; 1913 return false; 1914 case RTL_PCI_REVISION_ID_8192SE: 1915 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 1916 "8192SE is found - vid/did=%x/%x\n", 1917 venderid, deviceid); 1918 rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE; 1919 break; 1920 default: 1921 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, 1922 "Err: Unknown device - vid/did=%x/%x\n", 1923 venderid, deviceid); 1924 rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE; 1925 break; 1926 } 1927 } else if (deviceid == RTL_PCI_8723AE_DID) { 1928 rtlhal->hw_type = HARDWARE_TYPE_RTL8723AE; 1929 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 1930 "8723AE PCI-E is found - vid/did=%x/%x\n", 1931 venderid, deviceid); 1932 } else if (deviceid == RTL_PCI_8192CET_DID || 1933 deviceid == RTL_PCI_8192CE_DID || 1934 deviceid == RTL_PCI_8191CE_DID || 1935 deviceid == RTL_PCI_8188CE_DID) { 1936 rtlhal->hw_type = HARDWARE_TYPE_RTL8192CE; 1937 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 1938 "8192C PCI-E is found - vid/did=%x/%x\n", 1939 venderid, deviceid); 1940 } else if (deviceid == RTL_PCI_8192DE_DID || 1941 deviceid == RTL_PCI_8192DE_DID2) { 1942 rtlhal->hw_type = HARDWARE_TYPE_RTL8192DE; 1943 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 1944 "8192D PCI-E is found - vid/did=%x/%x\n", 1945 venderid, deviceid); 1946 } else if (deviceid == RTL_PCI_8188EE_DID) { 1947 rtlhal->hw_type = HARDWARE_TYPE_RTL8188EE; 1948 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 1949 "Find adapter, Hardware type is 8188EE\n"); 1950 } else if (deviceid == RTL_PCI_8723BE_DID) { 1951 rtlhal->hw_type = HARDWARE_TYPE_RTL8723BE; 1952 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 1953 "Find adapter, Hardware type is 8723BE\n"); 1954 } else if (deviceid == RTL_PCI_8192EE_DID) { 1955 rtlhal->hw_type = HARDWARE_TYPE_RTL8192EE; 1956 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 1957 "Find adapter, Hardware type is 8192EE\n"); 1958 } else if (deviceid == RTL_PCI_8821AE_DID) { 1959 rtlhal->hw_type = HARDWARE_TYPE_RTL8821AE; 1960 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 1961 "Find adapter, Hardware type is 8821AE\n"); 1962 } else if (deviceid == RTL_PCI_8812AE_DID) { 1963 rtlhal->hw_type = HARDWARE_TYPE_RTL8812AE; 1964 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 1965 "Find adapter, Hardware type is 8812AE\n"); 1966 } else if (deviceid == RTL_PCI_8822BE_DID) { 1967 rtlhal->hw_type = HARDWARE_TYPE_RTL8822BE; 1968 rtlhal->bandset = BAND_ON_BOTH; 1969 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 1970 "Find adapter, Hardware type is 8822BE\n"); 1971 } else { 1972 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, 1973 "Err: Unknown device - vid/did=%x/%x\n", 1974 venderid, deviceid); 1975 1976 rtlhal->hw_type = RTL_DEFAULT_HARDWARE_TYPE; 1977 } 1978 1979 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192DE) { 1980 if (revisionid == 0 || revisionid == 1) { 1981 if (revisionid == 0) { 1982 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 1983 "Find 92DE MAC0\n"); 1984 rtlhal->interfaceindex = 0; 1985 } else if (revisionid == 1) { 1986 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 1987 "Find 92DE MAC1\n"); 1988 rtlhal->interfaceindex = 1; 1989 } 1990 } else { 1991 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, 1992 "Unknown device - VendorID/DeviceID=%x/%x, Revision=%x\n", 1993 venderid, deviceid, revisionid); 1994 rtlhal->interfaceindex = 0; 1995 } 1996 } 1997 1998 switch (rtlhal->hw_type) { 1999 case HARDWARE_TYPE_RTL8192EE: 2000 case HARDWARE_TYPE_RTL8822BE: 2001 /* use new trx flow */ 2002 rtlpriv->use_new_trx_flow = true; 2003 break; 2004 2005 default: 2006 rtlpriv->use_new_trx_flow = false; 2007 break; 2008 } 2009 2010 /*find bus info */ 2011 pcipriv->ndis_adapter.busnumber = pdev->bus->number; 2012 pcipriv->ndis_adapter.devnumber = PCI_SLOT(pdev->devfn); 2013 pcipriv->ndis_adapter.funcnumber = PCI_FUNC(pdev->devfn); 2014 2015 /*find bridge info */ 2016 pcipriv->ndis_adapter.pcibridge_vendor = PCI_BRIDGE_VENDOR_UNKNOWN; 2017 /* some ARM have no bridge_pdev and will crash here 2018 * so we should check if bridge_pdev is NULL 2019 */ 2020 if (bridge_pdev) { 2021 /*find bridge info if available */ 2022 pcipriv->ndis_adapter.pcibridge_vendorid = bridge_pdev->vendor; 2023 for (tmp = 0; tmp < PCI_BRIDGE_VENDOR_MAX; tmp++) { 2024 if (bridge_pdev->vendor == pcibridge_vendors[tmp]) { 2025 pcipriv->ndis_adapter.pcibridge_vendor = tmp; 2026 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 2027 "Pci Bridge Vendor is found index: %d\n", 2028 tmp); 2029 break; 2030 } 2031 } 2032 } 2033 2034 if (pcipriv->ndis_adapter.pcibridge_vendor != 2035 PCI_BRIDGE_VENDOR_UNKNOWN) { 2036 pcipriv->ndis_adapter.pcibridge_busnum = 2037 bridge_pdev->bus->number; 2038 pcipriv->ndis_adapter.pcibridge_devnum = 2039 PCI_SLOT(bridge_pdev->devfn); 2040 pcipriv->ndis_adapter.pcibridge_funcnum = 2041 PCI_FUNC(bridge_pdev->devfn); 2042 pcipriv->ndis_adapter.pcibridge_pciehdr_offset = 2043 pci_pcie_cap(bridge_pdev); 2044 pcipriv->ndis_adapter.num4bytes = 2045 (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10) / 4; 2046 2047 rtl_pci_get_linkcontrol_field(hw); 2048 2049 if (pcipriv->ndis_adapter.pcibridge_vendor == 2050 PCI_BRIDGE_VENDOR_AMD) { 2051 pcipriv->ndis_adapter.amd_l1_patch = 2052 rtl_pci_get_amd_l1_patch(hw); 2053 } 2054 } 2055 2056 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 2057 "pcidev busnumber:devnumber:funcnumber:vendor:link_ctl %d:%d:%d:%x:%x\n", 2058 pcipriv->ndis_adapter.busnumber, 2059 pcipriv->ndis_adapter.devnumber, 2060 pcipriv->ndis_adapter.funcnumber, 2061 pdev->vendor, pcipriv->ndis_adapter.linkctrl_reg); 2062 2063 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 2064 "pci_bridge busnumber:devnumber:funcnumber:vendor:pcie_cap:link_ctl_reg:amd %d:%d:%d:%x:%x:%x:%x\n", 2065 pcipriv->ndis_adapter.pcibridge_busnum, 2066 pcipriv->ndis_adapter.pcibridge_devnum, 2067 pcipriv->ndis_adapter.pcibridge_funcnum, 2068 pcibridge_vendors[pcipriv->ndis_adapter.pcibridge_vendor], 2069 pcipriv->ndis_adapter.pcibridge_pciehdr_offset, 2070 pcipriv->ndis_adapter.pcibridge_linkctrlreg, 2071 pcipriv->ndis_adapter.amd_l1_patch); 2072 2073 rtl_pci_parse_configuration(pdev, hw); 2074 list_add_tail(&rtlpriv->list, &rtlpriv->glb_var->glb_priv_list); 2075 2076 return true; 2077 } 2078 2079 static int rtl_pci_intr_mode_msi(struct ieee80211_hw *hw) 2080 { 2081 struct rtl_priv *rtlpriv = rtl_priv(hw); 2082 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 2083 struct rtl_pci *rtlpci = rtl_pcidev(pcipriv); 2084 int ret; 2085 2086 ret = pci_enable_msi(rtlpci->pdev); 2087 if (ret < 0) 2088 return ret; 2089 2090 ret = request_irq(rtlpci->pdev->irq, &_rtl_pci_interrupt, 2091 IRQF_SHARED, KBUILD_MODNAME, hw); 2092 if (ret < 0) { 2093 pci_disable_msi(rtlpci->pdev); 2094 return ret; 2095 } 2096 2097 rtlpci->using_msi = true; 2098 2099 RT_TRACE(rtlpriv, COMP_INIT | COMP_INTR, DBG_DMESG, 2100 "MSI Interrupt Mode!\n"); 2101 return 0; 2102 } 2103 2104 static int rtl_pci_intr_mode_legacy(struct ieee80211_hw *hw) 2105 { 2106 struct rtl_priv *rtlpriv = rtl_priv(hw); 2107 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 2108 struct rtl_pci *rtlpci = rtl_pcidev(pcipriv); 2109 int ret; 2110 2111 ret = request_irq(rtlpci->pdev->irq, &_rtl_pci_interrupt, 2112 IRQF_SHARED, KBUILD_MODNAME, hw); 2113 if (ret < 0) 2114 return ret; 2115 2116 rtlpci->using_msi = false; 2117 RT_TRACE(rtlpriv, COMP_INIT | COMP_INTR, DBG_DMESG, 2118 "Pin-based Interrupt Mode!\n"); 2119 return 0; 2120 } 2121 2122 static int rtl_pci_intr_mode_decide(struct ieee80211_hw *hw) 2123 { 2124 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 2125 struct rtl_pci *rtlpci = rtl_pcidev(pcipriv); 2126 int ret; 2127 2128 if (rtlpci->msi_support) { 2129 ret = rtl_pci_intr_mode_msi(hw); 2130 if (ret < 0) 2131 ret = rtl_pci_intr_mode_legacy(hw); 2132 } else { 2133 ret = rtl_pci_intr_mode_legacy(hw); 2134 } 2135 return ret; 2136 } 2137 2138 static void platform_enable_dma64(struct pci_dev *pdev, bool dma64) 2139 { 2140 u8 value; 2141 2142 pci_read_config_byte(pdev, 0x719, &value); 2143 2144 /* 0x719 Bit5 is DMA64 bit fetch. */ 2145 if (dma64) 2146 value |= BIT(5); 2147 else 2148 value &= ~BIT(5); 2149 2150 pci_write_config_byte(pdev, 0x719, value); 2151 } 2152 2153 int rtl_pci_probe(struct pci_dev *pdev, 2154 const struct pci_device_id *id) 2155 { 2156 struct ieee80211_hw *hw = NULL; 2157 2158 struct rtl_priv *rtlpriv = NULL; 2159 struct rtl_pci_priv *pcipriv = NULL; 2160 struct rtl_pci *rtlpci; 2161 unsigned long pmem_start, pmem_len, pmem_flags; 2162 int err; 2163 2164 err = pci_enable_device(pdev); 2165 if (err) { 2166 WARN_ONCE(true, "%s : Cannot enable new PCI device\n", 2167 pci_name(pdev)); 2168 return err; 2169 } 2170 2171 if (((struct rtl_hal_cfg *)id->driver_data)->mod_params->dma64 && 2172 !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { 2173 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) { 2174 WARN_ONCE(true, 2175 "Unable to obtain 64bit DMA for consistent allocations\n"); 2176 err = -ENOMEM; 2177 goto fail1; 2178 } 2179 2180 platform_enable_dma64(pdev, true); 2181 } else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) { 2182 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) { 2183 WARN_ONCE(true, 2184 "rtlwifi: Unable to obtain 32bit DMA for consistent allocations\n"); 2185 err = -ENOMEM; 2186 goto fail1; 2187 } 2188 2189 platform_enable_dma64(pdev, false); 2190 } 2191 2192 pci_set_master(pdev); 2193 2194 hw = ieee80211_alloc_hw(sizeof(struct rtl_pci_priv) + 2195 sizeof(struct rtl_priv), &rtl_ops); 2196 if (!hw) { 2197 WARN_ONCE(true, 2198 "%s : ieee80211 alloc failed\n", pci_name(pdev)); 2199 err = -ENOMEM; 2200 goto fail1; 2201 } 2202 2203 SET_IEEE80211_DEV(hw, &pdev->dev); 2204 pci_set_drvdata(pdev, hw); 2205 2206 rtlpriv = hw->priv; 2207 rtlpriv->hw = hw; 2208 pcipriv = (void *)rtlpriv->priv; 2209 pcipriv->dev.pdev = pdev; 2210 init_completion(&rtlpriv->firmware_loading_complete); 2211 /*proximity init here*/ 2212 rtlpriv->proximity.proxim_on = false; 2213 2214 pcipriv = (void *)rtlpriv->priv; 2215 pcipriv->dev.pdev = pdev; 2216 2217 /* init cfg & intf_ops */ 2218 rtlpriv->rtlhal.interface = INTF_PCI; 2219 rtlpriv->cfg = (struct rtl_hal_cfg *)(id->driver_data); 2220 rtlpriv->intf_ops = &rtl_pci_ops; 2221 rtlpriv->glb_var = &rtl_global_var; 2222 rtl_efuse_ops_init(hw); 2223 2224 /* MEM map */ 2225 err = pci_request_regions(pdev, KBUILD_MODNAME); 2226 if (err) { 2227 WARN_ONCE(true, "rtlwifi: Can't obtain PCI resources\n"); 2228 goto fail1; 2229 } 2230 2231 pmem_start = pci_resource_start(pdev, rtlpriv->cfg->bar_id); 2232 pmem_len = pci_resource_len(pdev, rtlpriv->cfg->bar_id); 2233 pmem_flags = pci_resource_flags(pdev, rtlpriv->cfg->bar_id); 2234 2235 /*shared mem start */ 2236 rtlpriv->io.pci_mem_start = 2237 (unsigned long)pci_iomap(pdev, 2238 rtlpriv->cfg->bar_id, pmem_len); 2239 if (rtlpriv->io.pci_mem_start == 0) { 2240 WARN_ONCE(true, "rtlwifi: Can't map PCI mem\n"); 2241 err = -ENOMEM; 2242 goto fail2; 2243 } 2244 2245 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 2246 "mem mapped space: start: 0x%08lx len:%08lx flags:%08lx, after map:0x%08lx\n", 2247 pmem_start, pmem_len, pmem_flags, 2248 rtlpriv->io.pci_mem_start); 2249 2250 /* Disable Clk Request */ 2251 pci_write_config_byte(pdev, 0x81, 0); 2252 /* leave D3 mode */ 2253 pci_write_config_byte(pdev, 0x44, 0); 2254 pci_write_config_byte(pdev, 0x04, 0x06); 2255 pci_write_config_byte(pdev, 0x04, 0x07); 2256 2257 /* find adapter */ 2258 if (!_rtl_pci_find_adapter(pdev, hw)) { 2259 err = -ENODEV; 2260 goto fail2; 2261 } 2262 2263 /* Init IO handler */ 2264 _rtl_pci_io_handler_init(&pdev->dev, hw); 2265 2266 /*like read eeprom and so on */ 2267 rtlpriv->cfg->ops->read_eeprom_info(hw); 2268 2269 if (rtlpriv->cfg->ops->init_sw_vars(hw)) { 2270 pr_err("Can't init_sw_vars\n"); 2271 err = -ENODEV; 2272 goto fail3; 2273 } 2274 rtlpriv->cfg->ops->init_sw_leds(hw); 2275 2276 /*aspm */ 2277 rtl_pci_init_aspm(hw); 2278 2279 /* Init mac80211 sw */ 2280 err = rtl_init_core(hw); 2281 if (err) { 2282 pr_err("Can't allocate sw for mac80211\n"); 2283 goto fail3; 2284 } 2285 2286 /* Init PCI sw */ 2287 err = rtl_pci_init(hw, pdev); 2288 if (err) { 2289 pr_err("Failed to init PCI\n"); 2290 goto fail3; 2291 } 2292 2293 err = ieee80211_register_hw(hw); 2294 if (err) { 2295 pr_err("Can't register mac80211 hw.\n"); 2296 err = -ENODEV; 2297 goto fail3; 2298 } 2299 rtlpriv->mac80211.mac80211_registered = 1; 2300 2301 /* add for debug */ 2302 rtl_debug_add_one(hw); 2303 2304 /*init rfkill */ 2305 rtl_init_rfkill(hw); /* Init PCI sw */ 2306 2307 rtlpci = rtl_pcidev(pcipriv); 2308 err = rtl_pci_intr_mode_decide(hw); 2309 if (err) { 2310 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, 2311 "%s: failed to register IRQ handler\n", 2312 wiphy_name(hw->wiphy)); 2313 goto fail3; 2314 } 2315 rtlpci->irq_alloc = 1; 2316 2317 set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status); 2318 return 0; 2319 2320 fail3: 2321 pci_set_drvdata(pdev, NULL); 2322 rtl_deinit_core(hw); 2323 2324 fail2: 2325 if (rtlpriv->io.pci_mem_start != 0) 2326 pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start); 2327 2328 pci_release_regions(pdev); 2329 complete(&rtlpriv->firmware_loading_complete); 2330 2331 fail1: 2332 if (hw) 2333 ieee80211_free_hw(hw); 2334 pci_disable_device(pdev); 2335 2336 return err; 2337 } 2338 EXPORT_SYMBOL(rtl_pci_probe); 2339 2340 void rtl_pci_disconnect(struct pci_dev *pdev) 2341 { 2342 struct ieee80211_hw *hw = pci_get_drvdata(pdev); 2343 struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); 2344 struct rtl_priv *rtlpriv = rtl_priv(hw); 2345 struct rtl_pci *rtlpci = rtl_pcidev(pcipriv); 2346 struct rtl_mac *rtlmac = rtl_mac(rtlpriv); 2347 2348 /* just in case driver is removed before firmware callback */ 2349 wait_for_completion(&rtlpriv->firmware_loading_complete); 2350 clear_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status); 2351 2352 /* remove form debug */ 2353 rtl_debug_remove_one(hw); 2354 2355 /*ieee80211_unregister_hw will call ops_stop */ 2356 if (rtlmac->mac80211_registered == 1) { 2357 ieee80211_unregister_hw(hw); 2358 rtlmac->mac80211_registered = 0; 2359 } else { 2360 rtl_deinit_deferred_work(hw, false); 2361 rtlpriv->intf_ops->adapter_stop(hw); 2362 } 2363 rtlpriv->cfg->ops->disable_interrupt(hw); 2364 2365 /*deinit rfkill */ 2366 rtl_deinit_rfkill(hw); 2367 2368 rtl_pci_deinit(hw); 2369 rtl_deinit_core(hw); 2370 rtlpriv->cfg->ops->deinit_sw_vars(hw); 2371 2372 if (rtlpci->irq_alloc) { 2373 free_irq(rtlpci->pdev->irq, hw); 2374 rtlpci->irq_alloc = 0; 2375 } 2376 2377 if (rtlpci->using_msi) 2378 pci_disable_msi(rtlpci->pdev); 2379 2380 list_del(&rtlpriv->list); 2381 if (rtlpriv->io.pci_mem_start != 0) { 2382 pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start); 2383 pci_release_regions(pdev); 2384 } 2385 2386 pci_disable_device(pdev); 2387 2388 rtl_pci_disable_aspm(hw); 2389 2390 pci_set_drvdata(pdev, NULL); 2391 2392 ieee80211_free_hw(hw); 2393 } 2394 EXPORT_SYMBOL(rtl_pci_disconnect); 2395 2396 #ifdef CONFIG_PM_SLEEP 2397 /*************************************** 2398 * kernel pci power state define: 2399 * PCI_D0 ((pci_power_t __force) 0) 2400 * PCI_D1 ((pci_power_t __force) 1) 2401 * PCI_D2 ((pci_power_t __force) 2) 2402 * PCI_D3hot ((pci_power_t __force) 3) 2403 * PCI_D3cold ((pci_power_t __force) 4) 2404 * PCI_UNKNOWN ((pci_power_t __force) 5) 2405 2406 * This function is called when system 2407 * goes into suspend state mac80211 will 2408 * call rtl_mac_stop() from the mac80211 2409 * suspend function first, So there is 2410 * no need to call hw_disable here. 2411 ****************************************/ 2412 int rtl_pci_suspend(struct device *dev) 2413 { 2414 struct ieee80211_hw *hw = dev_get_drvdata(dev); 2415 struct rtl_priv *rtlpriv = rtl_priv(hw); 2416 2417 rtlpriv->cfg->ops->hw_suspend(hw); 2418 rtl_deinit_rfkill(hw); 2419 2420 return 0; 2421 } 2422 EXPORT_SYMBOL(rtl_pci_suspend); 2423 2424 int rtl_pci_resume(struct device *dev) 2425 { 2426 struct ieee80211_hw *hw = dev_get_drvdata(dev); 2427 struct rtl_priv *rtlpriv = rtl_priv(hw); 2428 2429 rtlpriv->cfg->ops->hw_resume(hw); 2430 rtl_init_rfkill(hw); 2431 return 0; 2432 } 2433 EXPORT_SYMBOL(rtl_pci_resume); 2434 #endif /* CONFIG_PM_SLEEP */ 2435 2436 const struct rtl_intf_ops rtl_pci_ops = { 2437 .read_efuse_byte = read_efuse_byte, 2438 .adapter_start = rtl_pci_start, 2439 .adapter_stop = rtl_pci_stop, 2440 .check_buddy_priv = rtl_pci_check_buddy_priv, 2441 .adapter_tx = rtl_pci_tx, 2442 .flush = rtl_pci_flush, 2443 .reset_trx_ring = rtl_pci_reset_trx_ring, 2444 .waitq_insert = rtl_pci_tx_chk_waitq_insert, 2445 2446 .disable_aspm = rtl_pci_disable_aspm, 2447 .enable_aspm = rtl_pci_enable_aspm, 2448 }; 2449