drivers/net/wireless/rtlwifi/pci.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2012  Realtek Corporation.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * The full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * wlanfae <wlanfae@realtek.com>
  23  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  24  * Hsinchu 300, Taiwan.
  25  *
  26  * Larry Finger <Larry.Finger@lwfinger.net>
  27  *
  28  *****************************************************************************/
  29
  30 #include "wifi.h"
  31 #include "core.h"
  32 #include "pci.h"
  33 #include "base.h"
  34 #include "ps.h"
  35 #include "efuse.h"
  36 #include <linux/export.h>
  37 #include <linux/kmemleak.h>
  38 #include <linux/module.h>
  39
  40 MODULE_AUTHOR("lizhaoming       <chaoming_li@realsil.com.cn>");
  41 MODULE_AUTHOR("Realtek WlanFAE  <wlanfae@realtek.com>");
  42 MODULE_AUTHOR("Larry Finger     <Larry.FInger@lwfinger.net>");
  43 MODULE_LICENSE("GPL");
  44 MODULE_DESCRIPTION("PCI basic driver for rtlwifi");
  45
  46 static const u16 pcibridge_vendors[PCI_BRIDGE_VENDOR_MAX] = {
  47         PCI_VENDOR_ID_INTEL,
  48         PCI_VENDOR_ID_ATI,
  49         PCI_VENDOR_ID_AMD,
  50         PCI_VENDOR_ID_SI
  51 };
  52
  53 static const u8 ac_to_hwq[] = {
  54         VO_QUEUE,
  55         VI_QUEUE,
  56         BE_QUEUE,
  57         BK_QUEUE
  58 };
  59
  60 static u8 _rtl_mac_to_hwqueue(struct ieee80211_hw *hw,
  61                        struct sk_buff *skb)
  62 {
  63         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
  64         __le16 fc = rtl_get_fc(skb);
  65         u8 queue_index = skb_get_queue_mapping(skb);
  66
  67         if (unlikely(ieee80211_is_beacon(fc)))
  68                 return BEACON_QUEUE;
  69         if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
  70                 return MGNT_QUEUE;
  71         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE)
  72                 if (ieee80211_is_nullfunc(fc))
  73                         return HIGH_QUEUE;
  74
  75         return ac_to_hwq[queue_index];
  76 }
  77
  78 /* Update PCI dependent default settings*/
  79 static void _rtl_pci_update_default_setting(struct ieee80211_hw *hw)
  80 {
  81         struct rtl_priv *rtlpriv = rtl_priv(hw);
  82         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
  83         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
  84         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
  85         u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
  86         u8 init_aspm;
  87
  88         ppsc->reg_rfps_level = 0;
  89         ppsc->support_aspm = false;
  90
  91         /*Update PCI ASPM setting */
  92         ppsc->const_amdpci_aspm = rtlpci->const_amdpci_aspm;
  93         switch (rtlpci->const_pci_aspm) {
  94         case 0:
  95                 /*No ASPM */
  96                 break;
  97
  98         case 1:
  99                 /*ASPM dynamically enabled/disable. */
 100                 ppsc->reg_rfps_level |= RT_RF_LPS_LEVEL_ASPM;
 101                 break;
 102
 103         case 2:
 104                 /*ASPM with Clock Req dynamically enabled/disable. */
 105                 ppsc->reg_rfps_level |= (RT_RF_LPS_LEVEL_ASPM |
 106                                          RT_RF_OFF_LEVL_CLK_REQ);
 107                 break;
 108
 109         case 3:
 110                 /*
 111                  * Always enable ASPM and Clock Req
 112                  * from initialization to halt.
 113                  * */
 114                 ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM);
 115                 ppsc->reg_rfps_level |= (RT_RF_PS_LEVEL_ALWAYS_ASPM |
 116                                          RT_RF_OFF_LEVL_CLK_REQ);
 117                 break;
 118
 119         case 4:
 120                 /*
 121                  * Always enable ASPM without Clock Req
 122                  * from initialization to halt.
 123                  * */
 124                 ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM |
 125                                           RT_RF_OFF_LEVL_CLK_REQ);
 126                 ppsc->reg_rfps_level |= RT_RF_PS_LEVEL_ALWAYS_ASPM;
 127                 break;
 128         }
 129
 130         ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC;
 131
 132         /*Update Radio OFF setting */
 133         switch (rtlpci->const_hwsw_rfoff_d3) {
 134         case 1:
 135                 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM)
 136                         ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM;
 137                 break;
 138
 139         case 2:
 140                 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM)
 141                         ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM;
 142                 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC;
 143                 break;
 144
 145         case 3:
 146                 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_PCI_D3;
 147                 break;
 148         }
 149
 150         /*Set HW definition to determine if it supports ASPM. */
 151         switch (rtlpci->const_support_pciaspm) {
 152         case 0:{
 153                         /*Not support ASPM. */
 154                         bool support_aspm = false;
 155                         ppsc->support_aspm = support_aspm;
 156                         break;
 157                 }
 158         case 1:{
 159                         /*Support ASPM. */
 160                         bool support_aspm = true;
 161                         bool support_backdoor = true;
 162                         ppsc->support_aspm = support_aspm;
 163
 164                         /*if (priv->oem_id == RT_CID_TOSHIBA &&
 165                            !priv->ndis_adapter.amd_l1_patch)
 166                            support_backdoor = false; */
 167
 168                         ppsc->support_backdoor = support_backdoor;
 169
 170                         break;
 171                 }
 172         case 2:
 173                 /*ASPM value set by chipset. */
 174                 if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL) {
 175                         bool support_aspm = true;
 176                         ppsc->support_aspm = support_aspm;
 177                 }
 178                 break;
 179         default:
 180                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 181                          "switch case not processed\n");
 182                 break;
 183         }
 184
 185         /* toshiba aspm issue, toshiba will set aspm selfly
 186          * so we should not set aspm in driver */
 187         pci_read_config_byte(rtlpci->pdev, 0x80, &init_aspm);
 188         if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8192SE &&
 189                 init_aspm == 0x43)
 190                 ppsc->support_aspm = false;
 191 }
 192
 193 static bool _rtl_pci_platform_switch_device_pci_aspm(
 194                         struct ieee80211_hw *hw,
 195                         u8 value)
 196 {
 197         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 198         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 199
 200         if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192SE)
 201                 value |= 0x40;
 202
 203         pci_write_config_byte(rtlpci->pdev, 0x80, value);
 204
 205         return false;
 206 }
 207
 208 /*When we set 0x01 to enable clk request. Set 0x0 to disable clk req.*/
 209 static void _rtl_pci_switch_clk_req(struct ieee80211_hw *hw, u8 value)
 210 {
 211         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 212         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 213
 214         pci_write_config_byte(rtlpci->pdev, 0x81, value);
 215
 216         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE)
 217                 udelay(100);
 218 }
 219
 220 /*Disable RTL8192SE ASPM & Disable Pci Bridge ASPM*/
 221 static void rtl_pci_disable_aspm(struct ieee80211_hw *hw)
 222 {
 223         struct rtl_priv *rtlpriv = rtl_priv(hw);
 224         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 225         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 226         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 227         u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
 228         u8 num4bytes = pcipriv->ndis_adapter.num4bytes;
 229         /*Retrieve original configuration settings. */
 230         u8 linkctrl_reg = pcipriv->ndis_adapter.linkctrl_reg;
 231         u16 pcibridge_linkctrlreg = pcipriv->ndis_adapter.
 232                                 pcibridge_linkctrlreg;
 233         u16 aspmlevel = 0;
 234         u8 tmp_u1b = 0;
 235
 236         if (!ppsc->support_aspm)
 237                 return;
 238
 239         if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) {
 240                 RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
 241                          "PCI(Bridge) UNKNOWN\n");
 242
 243                 return;
 244         }
 245
 246         if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) {
 247                 RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ);
 248                 _rtl_pci_switch_clk_req(hw, 0x0);
 249         }
 250
 251         /*for promising device will in L0 state after an I/O. */
 252         pci_read_config_byte(rtlpci->pdev, 0x80, &tmp_u1b);
 253
 254         /*Set corresponding value. */
 255         aspmlevel |= BIT(0) | BIT(1);
 256         linkctrl_reg &= ~aspmlevel;
 257         pcibridge_linkctrlreg &= ~(BIT(0) | BIT(1));
 258
 259         _rtl_pci_platform_switch_device_pci_aspm(hw, linkctrl_reg);
 260         udelay(50);
 261
 262         /*4 Disable Pci Bridge ASPM */
 263         pci_write_config_byte(rtlpci->pdev, (num4bytes << 2),
 264                               pcibridge_linkctrlreg);
 265
 266         udelay(50);
 267 }
 268
 269 /*
 270  *Enable RTL8192SE ASPM & Enable Pci Bridge ASPM for
 271  *power saving We should follow the sequence to enable
 272  *RTL8192SE first then enable Pci Bridge ASPM
 273  *or the system will show bluescreen.
 274  */
 275 static void rtl_pci_enable_aspm(struct ieee80211_hw *hw)
 276 {
 277         struct rtl_priv *rtlpriv = rtl_priv(hw);
 278         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 279         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 280         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 281         u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
 282         u8 num4bytes = pcipriv->ndis_adapter.num4bytes;
 283         u16 aspmlevel;
 284         u8 u_pcibridge_aspmsetting;
 285         u8 u_device_aspmsetting;
 286
 287         if (!ppsc->support_aspm)
 288                 return;
 289
 290         if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) {
 291                 RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
 292                          "PCI(Bridge) UNKNOWN\n");
 293                 return;
 294         }
 295
 296         /*4 Enable Pci Bridge ASPM */
 297
 298         u_pcibridge_aspmsetting =
 299             pcipriv->ndis_adapter.pcibridge_linkctrlreg |
 300             rtlpci->const_hostpci_aspm_setting;
 301
 302         if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL)
 303                 u_pcibridge_aspmsetting &= ~BIT(0);
 304
 305         pci_write_config_byte(rtlpci->pdev, (num4bytes << 2),
 306                               u_pcibridge_aspmsetting);
 307
 308         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
 309                  "PlatformEnableASPM(): Write reg[%x] = %x\n",
 310                  (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10),
 311                  u_pcibridge_aspmsetting);
 312
 313         udelay(50);
 314
 315         /*Get ASPM level (with/without Clock Req) */
 316         aspmlevel = rtlpci->const_devicepci_aspm_setting;
 317         u_device_aspmsetting = pcipriv->ndis_adapter.linkctrl_reg;
 318
 319         /*_rtl_pci_platform_switch_device_pci_aspm(dev,*/
 320         /*(priv->ndis_adapter.linkctrl_reg | ASPMLevel)); */
 321
 322         u_device_aspmsetting |= aspmlevel;
 323
 324         _rtl_pci_platform_switch_device_pci_aspm(hw, u_device_aspmsetting);
 325
 326         if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) {
 327                 _rtl_pci_switch_clk_req(hw, (ppsc->reg_rfps_level &
 328                                              RT_RF_OFF_LEVL_CLK_REQ) ? 1 : 0);
 329                 RT_SET_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ);
 330         }
 331         udelay(100);
 332 }
 333
 334 static bool rtl_pci_get_amd_l1_patch(struct ieee80211_hw *hw)
 335 {
 336         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 337
 338         bool status = false;
 339         u8 offset_e0;
 340         unsigned offset_e4;
 341
 342         pci_write_config_byte(rtlpci->pdev, 0xe0, 0xa0);
 343
 344         pci_read_config_byte(rtlpci->pdev, 0xe0, &offset_e0);
 345
 346         if (offset_e0 == 0xA0) {
 347                 pci_read_config_dword(rtlpci->pdev, 0xe4, &offset_e4);
 348                 if (offset_e4 & BIT(23))
 349                         status = true;
 350         }
 351
 352         return status;
 353 }
 354
 355 static bool rtl_pci_check_buddy_priv(struct ieee80211_hw *hw,
 356                                      struct rtl_priv **buddy_priv)
 357 {
 358         struct rtl_priv *rtlpriv = rtl_priv(hw);
 359         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 360         bool find_buddy_priv = false;
 361         struct rtl_priv *tpriv = NULL;
 362         struct rtl_pci_priv *tpcipriv = NULL;
 363
 364         if (!list_empty(&rtlpriv->glb_var->glb_priv_list)) {
 365                 list_for_each_entry(tpriv, &rtlpriv->glb_var->glb_priv_list,
 366                                     list) {
 367                         if (tpriv) {
 368                                 tpcipriv = (struct rtl_pci_priv *)tpriv->priv;
 369                                 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
 370                                          "pcipriv->ndis_adapter.funcnumber %x\n",
 371                                         pcipriv->ndis_adapter.funcnumber);
 372                                 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
 373                                          "tpcipriv->ndis_adapter.funcnumber %x\n",
 374                                         tpcipriv->ndis_adapter.funcnumber);
 375
 376                                 if ((pcipriv->ndis_adapter.busnumber ==
 377                                      tpcipriv->ndis_adapter.busnumber) &&
 378                                     (pcipriv->ndis_adapter.devnumber ==
 379                                     tpcipriv->ndis_adapter.devnumber) &&
 380                                     (pcipriv->ndis_adapter.funcnumber !=
 381                                     tpcipriv->ndis_adapter.funcnumber)) {
 382                                         find_buddy_priv = true;
 383                                         break;
 384                                 }
 385                         }
 386                 }
 387         }
 388
 389         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
 390                  "find_buddy_priv %d\n", find_buddy_priv);
 391
 392         if (find_buddy_priv)
 393                 *buddy_priv = tpriv;
 394
 395         return find_buddy_priv;
 396 }
 397
 398 static void rtl_pci_get_linkcontrol_field(struct ieee80211_hw *hw)
 399 {
 400         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 401         struct rtl_pci *rtlpci = rtl_pcidev(pcipriv);
 402         u8 capabilityoffset = pcipriv->ndis_adapter.pcibridge_pciehdr_offset;
 403         u8 linkctrl_reg;
 404         u8 num4bbytes;
 405
 406         num4bbytes = (capabilityoffset + 0x10) / 4;
 407
 408         /*Read  Link Control Register */
 409         pci_read_config_byte(rtlpci->pdev, (num4bbytes << 2), &linkctrl_reg);
 410
 411         pcipriv->ndis_adapter.pcibridge_linkctrlreg = linkctrl_reg;
 412 }
 413
 414 static void rtl_pci_parse_configuration(struct pci_dev *pdev,
 415                 struct ieee80211_hw *hw)
 416 {
 417         struct rtl_priv *rtlpriv = rtl_priv(hw);
 418         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 419
 420         u8 tmp;
 421         u16 linkctrl_reg;
 422
 423         /*Link Control Register */
 424         pcie_capability_read_word(pdev, PCI_EXP_LNKCTL, &linkctrl_reg);
 425         pcipriv->ndis_adapter.linkctrl_reg = (u8)linkctrl_reg;
 426
 427         RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, "Link Control Register =%x\n",
 428                  pcipriv->ndis_adapter.linkctrl_reg);
 429
 430         pci_read_config_byte(pdev, 0x98, &tmp);
 431         tmp |= BIT(4);
 432         pci_write_config_byte(pdev, 0x98, tmp);
 433
 434         tmp = 0x17;
 435         pci_write_config_byte(pdev, 0x70f, tmp);
 436 }
 437
 438 static void rtl_pci_init_aspm(struct ieee80211_hw *hw)
 439 {
 440         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 441
 442         _rtl_pci_update_default_setting(hw);
 443
 444         if (ppsc->reg_rfps_level & RT_RF_PS_LEVEL_ALWAYS_ASPM) {
 445                 /*Always enable ASPM & Clock Req. */
 446                 rtl_pci_enable_aspm(hw);
 447                 RT_SET_PS_LEVEL(ppsc, RT_RF_PS_LEVEL_ALWAYS_ASPM);
 448         }
 449
 450 }
 451
 452 static void _rtl_pci_io_handler_init(struct device *dev,
 453                                      struct ieee80211_hw *hw)
 454 {
 455         struct rtl_priv *rtlpriv = rtl_priv(hw);
 456
 457         rtlpriv->io.dev = dev;
 458
 459         rtlpriv->io.write8_async = pci_write8_async;
 460         rtlpriv->io.write16_async = pci_write16_async;
 461         rtlpriv->io.write32_async = pci_write32_async;
 462
 463         rtlpriv->io.read8_sync = pci_read8_sync;
 464         rtlpriv->io.read16_sync = pci_read16_sync;
 465         rtlpriv->io.read32_sync = pci_read32_sync;
 466
 467 }
 468
 469 static bool _rtl_update_earlymode_info(struct ieee80211_hw *hw,
 470                 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc, u8 tid)
 471 {
 472         struct rtl_priv *rtlpriv = rtl_priv(hw);
 473         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 474         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 475         struct sk_buff *next_skb;
 476         u8 additionlen = FCS_LEN;
 477
 478         /* here open is 4, wep/tkip is 8, aes is 12*/
 479         if (info->control.hw_key)
 480                 additionlen += info->control.hw_key->icv_len;
 481
 482         /* The most skb num is 6 */
 483         tcb_desc->empkt_num = 0;
 484         spin_lock_bh(&rtlpriv->locks.waitq_lock);
 485         skb_queue_walk(&rtlpriv->mac80211.skb_waitq[tid], next_skb) {
 486                 struct ieee80211_tx_info *next_info;
 487
 488                 next_info = IEEE80211_SKB_CB(next_skb);
 489                 if (next_info->flags & IEEE80211_TX_CTL_AMPDU) {
 490                         tcb_desc->empkt_len[tcb_desc->empkt_num] =
 491                                 next_skb->len + additionlen;
 492                         tcb_desc->empkt_num++;
 493                 } else {
 494                         break;
 495                 }
 496
 497                 if (skb_queue_is_last(&rtlpriv->mac80211.skb_waitq[tid],
 498                                       next_skb))
 499                         break;
 500
 501                 if (tcb_desc->empkt_num >= rtlhal->max_earlymode_num)
 502                         break;
 503         }
 504         spin_unlock_bh(&rtlpriv->locks.waitq_lock);
 505
 506         return true;
 507 }
 508
 509 /* just for early mode now */
 510 static void _rtl_pci_tx_chk_waitq(struct ieee80211_hw *hw)
 511 {
 512         struct rtl_priv *rtlpriv = rtl_priv(hw);
 513         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 514         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 515         struct sk_buff *skb = NULL;
 516         struct ieee80211_tx_info *info = NULL;
 517         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 518         int tid;
 519
 520         if (!rtlpriv->rtlhal.earlymode_enable)
 521                 return;
 522
 523         if (rtlpriv->dm.supp_phymode_switch &&
 524             (rtlpriv->easy_concurrent_ctl.switch_in_process ||
 525             (rtlpriv->buddy_priv &&
 526             rtlpriv->buddy_priv->easy_concurrent_ctl.switch_in_process)))
 527                 return;
 528         /* we juse use em for BE/BK/VI/VO */
 529         for (tid = 7; tid >= 0; tid--) {
 530                 u8 hw_queue = ac_to_hwq[rtl_tid_to_ac(tid)];
 531                 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
 532                 while (!mac->act_scanning &&
 533                        rtlpriv->psc.rfpwr_state == ERFON) {
 534                         struct rtl_tcb_desc tcb_desc;
 535                         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
 536
 537                         spin_lock_bh(&rtlpriv->locks.waitq_lock);
 538                         if (!skb_queue_empty(&mac->skb_waitq[tid]) &&
 539                             (ring->entries - skb_queue_len(&ring->queue) >
 540                              rtlhal->max_earlymode_num)) {
 541                                 skb = skb_dequeue(&mac->skb_waitq[tid]);
 542                         } else {
 543                                 spin_unlock_bh(&rtlpriv->locks.waitq_lock);
 544                                 break;
 545                         }
 546                         spin_unlock_bh(&rtlpriv->locks.waitq_lock);
 547
 548                         /* Some macaddr can't do early mode. like
 549                          * multicast/broadcast/no_qos data */
 550                         info = IEEE80211_SKB_CB(skb);
 551                         if (info->flags & IEEE80211_TX_CTL_AMPDU)
 552                                 _rtl_update_earlymode_info(hw, skb,
 553                                                            &tcb_desc, tid);
 554
 555                         rtlpriv->intf_ops->adapter_tx(hw, NULL, skb, &tcb_desc);
 556                 }
 557         }
 558 }
 559
 560
 561 static void _rtl_pci_tx_isr(struct ieee80211_hw *hw, int prio)
 562 {
 563         struct rtl_priv *rtlpriv = rtl_priv(hw);
 564         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 565
 566         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio];
 567
 568         while (skb_queue_len(&ring->queue)) {
 569                 struct rtl_tx_desc *entry = &ring->desc[ring->idx];
 570                 struct sk_buff *skb;
 571                 struct ieee80211_tx_info *info;
 572                 __le16 fc;
 573                 u8 tid;
 574
 575                 u8 own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) entry, true,
 576                                                           HW_DESC_OWN);
 577
 578                 /*beacon packet will only use the first
 579                  *descriptor by defaut, and the own may not
 580                  *be cleared by the hardware
 581                  */
 582                 if (own)
 583                         return;
 584                 ring->idx = (ring->idx + 1) % ring->entries;
 585
 586                 skb = __skb_dequeue(&ring->queue);
 587                 pci_unmap_single(rtlpci->pdev,
 588                                  rtlpriv->cfg->ops->
 589                                              get_desc((u8 *) entry, true,
 590                                                       HW_DESC_TXBUFF_ADDR),
 591                                  skb->len, PCI_DMA_TODEVICE);
 592
 593                 /* remove early mode header */
 594                 if (rtlpriv->rtlhal.earlymode_enable)
 595                         skb_pull(skb, EM_HDR_LEN);
 596
 597                 RT_TRACE(rtlpriv, (COMP_INTR | COMP_SEND), DBG_TRACE,
 598                          "new ring->idx:%d, free: skb_queue_len:%d, free: seq:%x\n",
 599                          ring->idx,
 600                          skb_queue_len(&ring->queue),
 601                          *(u16 *) (skb->data + 22));
 602
 603                 if (prio == TXCMD_QUEUE) {
 604                         dev_kfree_skb(skb);
 605                         goto tx_status_ok;
 606
 607                 }
 608
 609                 /* for sw LPS, just after NULL skb send out, we can
 610                  * sure AP knows we are sleeping, we should not let
 611                  * rf sleep
 612                  */
 613                 fc = rtl_get_fc(skb);
 614                 if (ieee80211_is_nullfunc(fc)) {
 615                         if (ieee80211_has_pm(fc)) {
 616                                 rtlpriv->mac80211.offchan_delay = true;
 617                                 rtlpriv->psc.state_inap = true;
 618                         } else {
 619                                 rtlpriv->psc.state_inap = false;
 620                         }
 621                 }
 622                 if (ieee80211_is_action(fc)) {
 623                         struct ieee80211_mgmt *action_frame =
 624                                 (struct ieee80211_mgmt *)skb->data;
 625                         if (action_frame->u.action.u.ht_smps.action ==
 626                             WLAN_HT_ACTION_SMPS) {
 627                                 dev_kfree_skb(skb);
 628                                 goto tx_status_ok;
 629                         }
 630                 }
 631
 632                 /* update tid tx pkt num */
 633                 tid = rtl_get_tid(skb);
 634                 if (tid <= 7)
 635                         rtlpriv->link_info.tidtx_inperiod[tid]++;
 636
 637                 info = IEEE80211_SKB_CB(skb);
 638                 ieee80211_tx_info_clear_status(info);
 639
 640                 info->flags |= IEEE80211_TX_STAT_ACK;
 641                 /*info->status.rates[0].count = 1; */
 642
 643                 ieee80211_tx_status_irqsafe(hw, skb);
 644
 645                 if ((ring->entries - skb_queue_len(&ring->queue))
 646                                 == 2) {
 647
 648                         RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
 649                                  "more desc left, wake skb_queue@%d, ring->idx = %d, skb_queue_len = 0x%d\n",
 650                                  prio, ring->idx,
 651                                  skb_queue_len(&ring->queue));
 652
 653                         ieee80211_wake_queue(hw,
 654                                         skb_get_queue_mapping
 655                                         (skb));
 656                 }
 657 tx_status_ok:
 658                 skb = NULL;
 659         }
 660
 661         if (((rtlpriv->link_info.num_rx_inperiod +
 662                 rtlpriv->link_info.num_tx_inperiod) > 8) ||
 663                 (rtlpriv->link_info.num_rx_inperiod > 2)) {
 664                 rtlpriv->enter_ps = false;
 665                 schedule_work(&rtlpriv->works.lps_change_work);
 666         }
 667 }
 668
 669 static void _rtl_receive_one(struct ieee80211_hw *hw, struct sk_buff *skb,
 670                              struct ieee80211_rx_status rx_status)
 671 {
 672         struct rtl_priv *rtlpriv = rtl_priv(hw);
 673         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
 674         __le16 fc = rtl_get_fc(skb);
 675         bool unicast = false;
 676         struct sk_buff *uskb = NULL;
 677         u8 *pdata;
 678
 679
 680         memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
 681
 682         if (is_broadcast_ether_addr(hdr->addr1)) {
 683                 ;/*TODO*/
 684         } else if (is_multicast_ether_addr(hdr->addr1)) {
 685                 ;/*TODO*/
 686         } else {
 687                 unicast = true;
 688                 rtlpriv->stats.rxbytesunicast += skb->len;
 689         }
 690
 691         if (ieee80211_is_data(fc)) {
 692                 rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
 693
 694                 if (unicast)
 695                         rtlpriv->link_info.num_rx_inperiod++;
 696         }
 697
 698         /* static bcn for roaming */
 699         rtl_beacon_statistic(hw, skb);
 700         rtl_p2p_info(hw, (void *)skb->data, skb->len);
 701
 702         /* for sw lps */
 703         rtl_swlps_beacon(hw, (void *)skb->data, skb->len);
 704         rtl_recognize_peer(hw, (void *)skb->data, skb->len);
 705         if ((rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP) &&
 706             (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G) &&
 707              (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)))
 708                 return;
 709
 710         if (unlikely(!rtl_action_proc(hw, skb, false)))
 711                 return;
 712
 713         uskb = dev_alloc_skb(skb->len + 128);
 714         if (!uskb)
 715                 return;         /* exit if allocation failed */
 716         memcpy(IEEE80211_SKB_RXCB(uskb), &rx_status, sizeof(rx_status));
 717         pdata = (u8 *)skb_put(uskb, skb->len);
 718         memcpy(pdata, skb->data, skb->len);
 719
 720         ieee80211_rx_irqsafe(hw, uskb);
 721 }
 722
 723 static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
 724 {
 725         struct rtl_priv *rtlpriv = rtl_priv(hw);
 726         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 727         int rx_queue_idx = RTL_PCI_RX_MPDU_QUEUE;
 728
 729         struct ieee80211_rx_status rx_status = { 0 };
 730         unsigned int count = rtlpci->rxringcount;
 731         u8 own;
 732         u8 tmp_one;
 733         u32 bufferaddress;
 734
 735         struct rtl_stats stats = {
 736                 .signal = 0,
 737                 .rate = 0,
 738         };
 739         int index = rtlpci->rx_ring[rx_queue_idx].idx;
 740
 741         /*RX NORMAL PKT */
 742         while (count--) {
 743                 /*rx descriptor */
 744                 struct rtl_rx_desc *pdesc = &rtlpci->rx_ring[rx_queue_idx].desc[
 745                                 index];
 746                 /*rx pkt */
 747                 struct sk_buff *skb = rtlpci->rx_ring[rx_queue_idx].rx_buf[
 748                                 index];
 749                 struct sk_buff *new_skb = NULL;
 750
 751                 own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc,
 752                                                        false, HW_DESC_OWN);
 753
 754                 /*wait data to be filled by hardware */
 755                 if (own)
 756                         break;
 757
 758                 rtlpriv->cfg->ops->query_rx_desc(hw, &stats,
 759                                                  &rx_status,
 760                                                  (u8 *) pdesc, skb);
 761
 762                 if (stats.crc || stats.hwerror)
 763                         goto done;
 764
 765                 new_skb = dev_alloc_skb(rtlpci->rxbuffersize);
 766                 if (unlikely(!new_skb)) {
 767                         RT_TRACE(rtlpriv, (COMP_INTR | COMP_RECV), DBG_DMESG,
 768                                  "can't alloc skb for rx\n");
 769                         goto done;
 770                 }
 771                 kmemleak_not_leak(new_skb);
 772
 773                 pci_unmap_single(rtlpci->pdev,
 774                                  *((dma_addr_t *) skb->cb),
 775                                  rtlpci->rxbuffersize,
 776                                  PCI_DMA_FROMDEVICE);
 777
 778                 skb_put(skb, rtlpriv->cfg->ops->get_desc((u8 *) pdesc, false,
 779                         HW_DESC_RXPKT_LEN));
 780                 skb_reserve(skb, stats.rx_drvinfo_size + stats.rx_bufshift);
 781
 782                 /*
 783                  * NOTICE This can not be use for mac80211,
 784                  * this is done in mac80211 code,
 785                  * if you done here sec DHCP will fail
 786                  * skb_trim(skb, skb->len - 4);
 787                  */
 788
 789                 _rtl_receive_one(hw, skb, rx_status);
 790
 791                 if (((rtlpriv->link_info.num_rx_inperiod +
 792                       rtlpriv->link_info.num_tx_inperiod) > 8) ||
 793                       (rtlpriv->link_info.num_rx_inperiod > 2)) {
 794                         rtlpriv->enter_ps = false;
 795                         schedule_work(&rtlpriv->works.lps_change_work);
 796                 }
 797
 798                 dev_kfree_skb_any(skb);
 799                 skb = new_skb;
 800
 801                 rtlpci->rx_ring[rx_queue_idx].rx_buf[index] = skb;
 802                 *((dma_addr_t *) skb->cb) =
 803                             pci_map_single(rtlpci->pdev, skb_tail_pointer(skb),
 804                                            rtlpci->rxbuffersize,
 805                                            PCI_DMA_FROMDEVICE);
 806
 807 done:
 808                 bufferaddress = (*((dma_addr_t *)skb->cb));
 809                 if (pci_dma_mapping_error(rtlpci->pdev, bufferaddress))
 810                         return;
 811                 tmp_one = 1;
 812                 rtlpriv->cfg->ops->set_desc((u8 *) pdesc, false,
 813                                             HW_DESC_RXBUFF_ADDR,
 814                                             (u8 *)&bufferaddress);
 815                 rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false,
 816                                             HW_DESC_RXPKT_LEN,
 817                                             (u8 *)&rtlpci->rxbuffersize);
 818
 819                 if (index == rtlpci->rxringcount - 1)
 820                         rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false,
 821                                                     HW_DESC_RXERO,
 822                                                     &tmp_one);
 823
 824                 rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXOWN,
 825                                             &tmp_one);
 826
 827                 index = (index + 1) % rtlpci->rxringcount;
 828         }
 829
 830         rtlpci->rx_ring[rx_queue_idx].idx = index;
 831 }
 832
 833 static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id)
 834 {
 835         struct ieee80211_hw *hw = dev_id;
 836         struct rtl_priv *rtlpriv = rtl_priv(hw);
 837         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 838         unsigned long flags;
 839         u32 inta = 0;
 840         u32 intb = 0;
 841         irqreturn_t ret = IRQ_HANDLED;
 842
 843         spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
 844
 845         /*read ISR: 4/8bytes */
 846         rtlpriv->cfg->ops->interrupt_recognized(hw, &inta, &intb);
 847
 848         /*Shared IRQ or HW disappared */
 849         if (!inta || inta == 0xffff) {
 850                 ret = IRQ_NONE;
 851                 goto done;
 852         }
 853
 854         /*<1> beacon related */
 855         if (inta & rtlpriv->cfg->maps[RTL_IMR_TBDOK]) {
 856                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 857                          "beacon ok interrupt!\n");
 858         }
 859
 860         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TBDER])) {
 861                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 862                          "beacon err interrupt!\n");
 863         }
 864
 865         if (inta & rtlpriv->cfg->maps[RTL_IMR_BDOK]) {
 866                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, "beacon interrupt!\n");
 867         }
 868
 869         if (inta & rtlpriv->cfg->maps[RTL_IMR_BCNINT]) {
 870                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 871                          "prepare beacon for interrupt!\n");
 872                 tasklet_schedule(&rtlpriv->works.irq_prepare_bcn_tasklet);
 873         }
 874
 875         /*<3> Tx related */
 876         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TXFOVW]))
 877                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, "IMR_TXFOVW!\n");
 878
 879         if (inta & rtlpriv->cfg->maps[RTL_IMR_MGNTDOK]) {
 880                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 881                          "Manage ok interrupt!\n");
 882                 _rtl_pci_tx_isr(hw, MGNT_QUEUE);
 883         }
 884
 885         if (inta & rtlpriv->cfg->maps[RTL_IMR_HIGHDOK]) {
 886                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 887                          "HIGH_QUEUE ok interrupt!\n");
 888                 _rtl_pci_tx_isr(hw, HIGH_QUEUE);
 889         }
 890
 891         if (inta & rtlpriv->cfg->maps[RTL_IMR_BKDOK]) {
 892                 rtlpriv->link_info.num_tx_inperiod++;
 893
 894                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 895                          "BK Tx OK interrupt!\n");
 896                 _rtl_pci_tx_isr(hw, BK_QUEUE);
 897         }
 898
 899         if (inta & rtlpriv->cfg->maps[RTL_IMR_BEDOK]) {
 900                 rtlpriv->link_info.num_tx_inperiod++;
 901
 902                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 903                          "BE TX OK interrupt!\n");
 904                 _rtl_pci_tx_isr(hw, BE_QUEUE);
 905         }
 906
 907         if (inta & rtlpriv->cfg->maps[RTL_IMR_VIDOK]) {
 908                 rtlpriv->link_info.num_tx_inperiod++;
 909
 910                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 911                          "VI TX OK interrupt!\n");
 912                 _rtl_pci_tx_isr(hw, VI_QUEUE);
 913         }
 914
 915         if (inta & rtlpriv->cfg->maps[RTL_IMR_VODOK]) {
 916                 rtlpriv->link_info.num_tx_inperiod++;
 917
 918                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 919                          "Vo TX OK interrupt!\n");
 920                 _rtl_pci_tx_isr(hw, VO_QUEUE);
 921         }
 922
 923         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) {
 924                 if (inta & rtlpriv->cfg->maps[RTL_IMR_COMDOK]) {
 925                         rtlpriv->link_info.num_tx_inperiod++;
 926
 927                         RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 928                                  "CMD TX OK interrupt!\n");
 929                         _rtl_pci_tx_isr(hw, TXCMD_QUEUE);
 930                 }
 931         }
 932
 933         /*<2> Rx related */
 934         if (inta & rtlpriv->cfg->maps[RTL_IMR_ROK]) {
 935                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, "Rx ok interrupt!\n");
 936                 _rtl_pci_rx_interrupt(hw);
 937         }
 938
 939         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RDU])) {
 940                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 941                          "rx descriptor unavailable!\n");
 942                 _rtl_pci_rx_interrupt(hw);
 943         }
 944
 945         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RXFOVW])) {
 946                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, "rx overflow !\n");
 947                 _rtl_pci_rx_interrupt(hw);
 948         }
 949
 950         /*fw related*/
 951         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8723AE) {
 952                 if (inta & rtlpriv->cfg->maps[RTL_IMR_C2HCMD]) {
 953                         RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 954                                  "firmware interrupt!\n");
 955                         queue_delayed_work(rtlpriv->works.rtl_wq,
 956                                            &rtlpriv->works.fwevt_wq, 0);
 957                 }
 958         }
 959
 960         if (rtlpriv->rtlhal.earlymode_enable)
 961                 tasklet_schedule(&rtlpriv->works.irq_tasklet);
 962
 963 done:
 964         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
 965         return ret;
 966 }
 967
 968 static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw)
 969 {
 970         _rtl_pci_tx_chk_waitq(hw);
 971 }
 972
 973 static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw)
 974 {
 975         struct rtl_priv *rtlpriv = rtl_priv(hw);
 976         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 977         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 978         struct rtl8192_tx_ring *ring = NULL;
 979         struct ieee80211_hdr *hdr = NULL;
 980         struct ieee80211_tx_info *info = NULL;
 981         struct sk_buff *pskb = NULL;
 982         struct rtl_tx_desc *pdesc = NULL;
 983         struct rtl_tcb_desc tcb_desc;
 984         u8 temp_one = 1;
 985
 986         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
 987         ring = &rtlpci->tx_ring[BEACON_QUEUE];
 988         pskb = __skb_dequeue(&ring->queue);
 989         if (pskb) {
 990                 struct rtl_tx_desc *entry = &ring->desc[ring->idx];
 991                 pci_unmap_single(rtlpci->pdev, rtlpriv->cfg->ops->get_desc(
 992                                  (u8 *) entry, true, HW_DESC_TXBUFF_ADDR),
 993                                  pskb->len, PCI_DMA_TODEVICE);
 994                 kfree_skb(pskb);
 995         }
 996
 997         /*NB: the beacon data buffer must be 32-bit aligned. */
 998         pskb = ieee80211_beacon_get(hw, mac->vif);
 999         if (pskb == NULL)
1000                 return;
1001         hdr = rtl_get_hdr(pskb);
1002         info = IEEE80211_SKB_CB(pskb);
1003         pdesc = &ring->desc[0];
1004         rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *) pdesc,
1005                 info, NULL, pskb, BEACON_QUEUE, &tcb_desc);
1006
1007         __skb_queue_tail(&ring->queue, pskb);
1008
1009         rtlpriv->cfg->ops->set_desc((u8 *) pdesc, true, HW_DESC_OWN,
1010                                     &temp_one);
1011
1012         return;
1013 }
1014
1015 static void _rtl_pci_init_trx_var(struct ieee80211_hw *hw)
1016 {
1017         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1018         u8 i;
1019
1020         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
1021                 rtlpci->txringcount[i] = RT_TXDESC_NUM;
1022
1023         /*
1024          *we just alloc 2 desc for beacon queue,
1025          *because we just need first desc in hw beacon.
1026          */
1027         rtlpci->txringcount[BEACON_QUEUE] = 2;
1028
1029         /*
1030          *BE queue need more descriptor for performance
1031          *consideration or, No more tx desc will happen,
1032          *and may cause mac80211 mem leakage.
1033          */
1034         rtlpci->txringcount[BE_QUEUE] = RT_TXDESC_NUM_BE_QUEUE;
1035
1036         rtlpci->rxbuffersize = 9100;    /*2048/1024; */
1037         rtlpci->rxringcount = RTL_PCI_MAX_RX_COUNT;     /*64; */
1038 }
1039
1040 static void _rtl_pci_init_struct(struct ieee80211_hw *hw,
1041                 struct pci_dev *pdev)
1042 {
1043         struct rtl_priv *rtlpriv = rtl_priv(hw);
1044         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1045         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1046         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1047
1048         rtlpci->up_first_time = true;
1049         rtlpci->being_init_adapter = false;
1050
1051         rtlhal->hw = hw;
1052         rtlpci->pdev = pdev;
1053
1054         /*Tx/Rx related var */
1055         _rtl_pci_init_trx_var(hw);
1056
1057         /*IBSS*/ mac->beacon_interval = 100;
1058
1059         /*AMPDU*/
1060         mac->min_space_cfg = 0;
1061         mac->max_mss_density = 0;
1062         /*set sane AMPDU defaults */
1063         mac->current_ampdu_density = 7;
1064         mac->current_ampdu_factor = 3;
1065
1066         /*QOS*/
1067         rtlpci->acm_method = eAcmWay2_SW;
1068
1069         /*task */
1070         tasklet_init(&rtlpriv->works.irq_tasklet,
1071                      (void (*)(unsigned long))_rtl_pci_irq_tasklet,
1072                      (unsigned long)hw);
1073         tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet,
1074                      (void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet,
1075                      (unsigned long)hw);
1076         INIT_WORK(&rtlpriv->works.lps_change_work,
1077                   rtl_lps_change_work_callback);
1078 }
1079
1080 static int _rtl_pci_init_tx_ring(struct ieee80211_hw *hw,
1081                                  unsigned int prio, unsigned int entries)
1082 {
1083         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1084         struct rtl_priv *rtlpriv = rtl_priv(hw);
1085         struct rtl_tx_desc *ring;
1086         dma_addr_t dma;
1087         u32 nextdescaddress;
1088         int i;
1089
1090         ring = pci_alloc_consistent(rtlpci->pdev,
1091                                     sizeof(*ring) * entries, &dma);
1092
1093         if (!ring || (unsigned long)ring & 0xFF) {
1094                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1095                          "Cannot allocate TX ring (prio = %d)\n", prio);
1096                 return -ENOMEM;
1097         }
1098
1099         memset(ring, 0, sizeof(*ring) * entries);
1100         rtlpci->tx_ring[prio].desc = ring;
1101         rtlpci->tx_ring[prio].dma = dma;
1102         rtlpci->tx_ring[prio].idx = 0;
1103         rtlpci->tx_ring[prio].entries = entries;
1104         skb_queue_head_init(&rtlpci->tx_ring[prio].queue);
1105
1106         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, "queue:%d, ring_addr:%p\n",
1107                  prio, ring);
1108
1109         for (i = 0; i < entries; i++) {
1110                 nextdescaddress = (u32) dma +
1111                                               ((i + 1) % entries) *
1112                                               sizeof(*ring);
1113
1114                 rtlpriv->cfg->ops->set_desc((u8 *)&(ring[i]),
1115                                             true, HW_DESC_TX_NEXTDESC_ADDR,
1116                                             (u8 *)&nextdescaddress);
1117         }
1118
1119         return 0;
1120 }
1121
1122 static int _rtl_pci_init_rx_ring(struct ieee80211_hw *hw)
1123 {
1124         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1125         struct rtl_priv *rtlpriv = rtl_priv(hw);
1126         struct rtl_rx_desc *entry = NULL;
1127         int i, rx_queue_idx;
1128         u8 tmp_one = 1;
1129
1130         /*
1131          *rx_queue_idx 0:RX_MPDU_QUEUE
1132          *rx_queue_idx 1:RX_CMD_QUEUE
1133          */
1134         for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1135              rx_queue_idx++) {
1136                 rtlpci->rx_ring[rx_queue_idx].desc =
1137                     pci_alloc_consistent(rtlpci->pdev,
1138                                          sizeof(*rtlpci->rx_ring[rx_queue_idx].
1139                                                 desc) * rtlpci->rxringcount,
1140                                          &rtlpci->rx_ring[rx_queue_idx].dma);
1141
1142                 if (!rtlpci->rx_ring[rx_queue_idx].desc ||
1143                     (unsigned long)rtlpci->rx_ring[rx_queue_idx].desc & 0xFF) {
1144                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1145                                  "Cannot allocate RX ring\n");
1146                         return -ENOMEM;
1147                 }
1148
1149                 memset(rtlpci->rx_ring[rx_queue_idx].desc, 0,
1150                        sizeof(*rtlpci->rx_ring[rx_queue_idx].desc) *
1151                        rtlpci->rxringcount);
1152
1153                 rtlpci->rx_ring[rx_queue_idx].idx = 0;
1154
1155                 /* If amsdu_8k is disabled, set buffersize to 4096. This
1156                  * change will reduce memory fragmentation.
1157                  */
1158                 if (rtlpci->rxbuffersize > 4096 &&
1159                     rtlpriv->rtlhal.disable_amsdu_8k)
1160                         rtlpci->rxbuffersize = 4096;
1161
1162                 for (i = 0; i < rtlpci->rxringcount; i++) {
1163                         struct sk_buff *skb =
1164                             dev_alloc_skb(rtlpci->rxbuffersize);
1165                         u32 bufferaddress;
1166                         if (!skb)
1167                                 return 0;
1168                         kmemleak_not_leak(skb);
1169                         entry = &rtlpci->rx_ring[rx_queue_idx].desc[i];
1170
1171                         /*skb->dev = dev; */
1172
1173                         rtlpci->rx_ring[rx_queue_idx].rx_buf[i] = skb;
1174
1175                         /*
1176                          *just set skb->cb to mapping addr
1177                          *for pci_unmap_single use
1178                          */
1179                         *((dma_addr_t *) skb->cb) =
1180                             pci_map_single(rtlpci->pdev, skb_tail_pointer(skb),
1181                                            rtlpci->rxbuffersize,
1182                                            PCI_DMA_FROMDEVICE);
1183
1184                         bufferaddress = (*((dma_addr_t *)skb->cb));
1185                         if (pci_dma_mapping_error(rtlpci->pdev, bufferaddress)) {
1186                                 dev_kfree_skb_any(skb);
1187                                 return 1;
1188                         }
1189                         rtlpriv->cfg->ops->set_desc((u8 *)entry, false,
1190                                                     HW_DESC_RXBUFF_ADDR,
1191                                                     (u8 *)&bufferaddress);
1192                         rtlpriv->cfg->ops->set_desc((u8 *)entry, false,
1193                                                     HW_DESC_RXPKT_LEN,
1194                                                     (u8 *)&rtlpci->
1195                                                     rxbuffersize);
1196                         rtlpriv->cfg->ops->set_desc((u8 *) entry, false,
1197                                                     HW_DESC_RXOWN,
1198                                                     &tmp_one);
1199                 }
1200
1201                 rtlpriv->cfg->ops->set_desc((u8 *) entry, false,
1202                                             HW_DESC_RXERO, &tmp_one);
1203         }
1204         return 0;
1205 }
1206
1207 static void _rtl_pci_free_tx_ring(struct ieee80211_hw *hw,
1208                 unsigned int prio)
1209 {
1210         struct rtl_priv *rtlpriv = rtl_priv(hw);
1211         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1212         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio];
1213
1214         while (skb_queue_len(&ring->queue)) {
1215                 struct rtl_tx_desc *entry = &ring->desc[ring->idx];
1216                 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1217
1218                 pci_unmap_single(rtlpci->pdev,
1219                                  rtlpriv->cfg->
1220                                              ops->get_desc((u8 *) entry, true,
1221                                                    HW_DESC_TXBUFF_ADDR),
1222                                  skb->len, PCI_DMA_TODEVICE);
1223                 kfree_skb(skb);
1224                 ring->idx = (ring->idx + 1) % ring->entries;
1225         }
1226
1227         if (ring->desc) {
1228                 pci_free_consistent(rtlpci->pdev,
1229                                     sizeof(*ring->desc) * ring->entries,
1230                                     ring->desc, ring->dma);
1231                 ring->desc = NULL;
1232         }
1233 }
1234
1235 static void _rtl_pci_free_rx_ring(struct rtl_pci *rtlpci)
1236 {
1237         int i, rx_queue_idx;
1238
1239         /*rx_queue_idx 0:RX_MPDU_QUEUE */
1240         /*rx_queue_idx 1:RX_CMD_QUEUE */
1241         for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1242              rx_queue_idx++) {
1243                 for (i = 0; i < rtlpci->rxringcount; i++) {
1244                         struct sk_buff *skb =
1245                             rtlpci->rx_ring[rx_queue_idx].rx_buf[i];
1246                         if (!skb)
1247                                 continue;
1248
1249                         pci_unmap_single(rtlpci->pdev,
1250                                          *((dma_addr_t *) skb->cb),
1251                                          rtlpci->rxbuffersize,
1252                                          PCI_DMA_FROMDEVICE);
1253                         kfree_skb(skb);
1254                 }
1255
1256                 if (rtlpci->rx_ring[rx_queue_idx].desc) {
1257                         pci_free_consistent(rtlpci->pdev,
1258                                     sizeof(*rtlpci->rx_ring[rx_queue_idx].
1259                                            desc) * rtlpci->rxringcount,
1260                                     rtlpci->rx_ring[rx_queue_idx].desc,
1261                                     rtlpci->rx_ring[rx_queue_idx].dma);
1262                         rtlpci->rx_ring[rx_queue_idx].desc = NULL;
1263                 }
1264         }
1265 }
1266
1267 static int _rtl_pci_init_trx_ring(struct ieee80211_hw *hw)
1268 {
1269         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1270         int ret;
1271         int i;
1272
1273         ret = _rtl_pci_init_rx_ring(hw);
1274         if (ret)
1275                 return ret;
1276
1277         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) {
1278                 ret = _rtl_pci_init_tx_ring(hw, i,
1279                                  rtlpci->txringcount[i]);
1280                 if (ret)
1281                         goto err_free_rings;
1282         }
1283
1284         return 0;
1285
1286 err_free_rings:
1287         _rtl_pci_free_rx_ring(rtlpci);
1288
1289         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
1290                 if (rtlpci->tx_ring[i].desc)
1291                         _rtl_pci_free_tx_ring(hw, i);
1292
1293         return 1;
1294 }
1295
1296 static int _rtl_pci_deinit_trx_ring(struct ieee80211_hw *hw)
1297 {
1298         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1299         u32 i;
1300
1301         /*free rx rings */
1302         _rtl_pci_free_rx_ring(rtlpci);
1303
1304         /*free tx rings */
1305         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
1306                 _rtl_pci_free_tx_ring(hw, i);
1307
1308         return 0;
1309 }
1310
1311 int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw)
1312 {
1313         struct rtl_priv *rtlpriv = rtl_priv(hw);
1314         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1315         int i, rx_queue_idx;
1316         unsigned long flags;
1317         u8 tmp_one = 1;
1318
1319         /*rx_queue_idx 0:RX_MPDU_QUEUE */
1320         /*rx_queue_idx 1:RX_CMD_QUEUE */
1321         for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1322              rx_queue_idx++) {
1323                 /*
1324                  *force the rx_ring[RX_MPDU_QUEUE/
1325                  *RX_CMD_QUEUE].idx to the first one
1326                  */
1327                 if (rtlpci->rx_ring[rx_queue_idx].desc) {
1328                         struct rtl_rx_desc *entry = NULL;
1329
1330                         for (i = 0; i < rtlpci->rxringcount; i++) {
1331                                 entry = &rtlpci->rx_ring[rx_queue_idx].desc[i];
1332                                 rtlpriv->cfg->ops->set_desc((u8 *) entry,
1333                                                             false,
1334                                                             HW_DESC_RXOWN,
1335                                                             &tmp_one);
1336                         }
1337                         rtlpci->rx_ring[rx_queue_idx].idx = 0;
1338                 }
1339         }
1340
1341         /*
1342          *after reset, release previous pending packet,
1343          *and force the  tx idx to the first one
1344          */
1345         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) {
1346                 if (rtlpci->tx_ring[i].desc) {
1347                         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[i];
1348
1349                         while (skb_queue_len(&ring->queue)) {
1350                                 struct rtl_tx_desc *entry;
1351                                 struct sk_buff *skb;
1352
1353                                 spin_lock_irqsave(&rtlpriv->locks.irq_th_lock,
1354                                                   flags);
1355                                 entry = &ring->desc[ring->idx];
1356                                 skb = __skb_dequeue(&ring->queue);
1357                                 pci_unmap_single(rtlpci->pdev,
1358                                                  rtlpriv->cfg->ops->
1359                                                          get_desc((u8 *)
1360                                                          entry,
1361                                                          true,
1362                                                          HW_DESC_TXBUFF_ADDR),
1363                                                  skb->len, PCI_DMA_TODEVICE);
1364                                 ring->idx = (ring->idx + 1) % ring->entries;
1365                                 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock,
1366                                                   flags);
1367                                 kfree_skb(skb);
1368                         }
1369                         ring->idx = 0;
1370                 }
1371         }
1372
1373         return 0;
1374 }
1375
1376 static bool rtl_pci_tx_chk_waitq_insert(struct ieee80211_hw *hw,
1377                                         struct ieee80211_sta *sta,
1378                                         struct sk_buff *skb)
1379 {
1380         struct rtl_priv *rtlpriv = rtl_priv(hw);
1381         struct rtl_sta_info *sta_entry = NULL;
1382         u8 tid = rtl_get_tid(skb);
1383         __le16 fc = rtl_get_fc(skb);
1384
1385         if (!sta)
1386                 return false;
1387         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1388
1389         if (!rtlpriv->rtlhal.earlymode_enable)
1390                 return false;
1391         if (ieee80211_is_nullfunc(fc))
1392                 return false;
1393         if (ieee80211_is_qos_nullfunc(fc))
1394                 return false;
1395         if (ieee80211_is_pspoll(fc))
1396                 return false;
1397         if (sta_entry->tids[tid].agg.agg_state != RTL_AGG_OPERATIONAL)
1398                 return false;
1399         if (_rtl_mac_to_hwqueue(hw, skb) > VO_QUEUE)
1400                 return false;
1401         if (tid > 7)
1402                 return false;
1403
1404         /* maybe every tid should be checked */
1405         if (!rtlpriv->link_info.higher_busytxtraffic[tid])
1406                 return false;
1407
1408         spin_lock_bh(&rtlpriv->locks.waitq_lock);
1409         skb_queue_tail(&rtlpriv->mac80211.skb_waitq[tid], skb);
1410         spin_unlock_bh(&rtlpriv->locks.waitq_lock);
1411
1412         return true;
1413 }
1414
1415 static int rtl_pci_tx(struct ieee80211_hw *hw,
1416                       struct ieee80211_sta *sta,
1417                       struct sk_buff *skb,
1418                       struct rtl_tcb_desc *ptcb_desc)
1419 {
1420         struct rtl_priv *rtlpriv = rtl_priv(hw);
1421         struct rtl_sta_info *sta_entry = NULL;
1422         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1423         struct rtl8192_tx_ring *ring;
1424         struct rtl_tx_desc *pdesc;
1425         u8 idx;
1426         u8 hw_queue = _rtl_mac_to_hwqueue(hw, skb);
1427         unsigned long flags;
1428         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1429         __le16 fc = rtl_get_fc(skb);
1430         u8 *pda_addr = hdr->addr1;
1431         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1432         /*ssn */
1433         u8 tid = 0;
1434         u16 seq_number = 0;
1435         u8 own;
1436         u8 temp_one = 1;
1437
1438         if (ieee80211_is_mgmt(fc))
1439                 rtl_tx_mgmt_proc(hw, skb);
1440
1441         if (rtlpriv->psc.sw_ps_enabled) {
1442                 if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) &&
1443                         !ieee80211_has_pm(fc))
1444                         hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1445         }
1446
1447         rtl_action_proc(hw, skb, true);
1448
1449         if (is_multicast_ether_addr(pda_addr))
1450                 rtlpriv->stats.txbytesmulticast += skb->len;
1451         else if (is_broadcast_ether_addr(pda_addr))
1452                 rtlpriv->stats.txbytesbroadcast += skb->len;
1453         else
1454                 rtlpriv->stats.txbytesunicast += skb->len;
1455
1456         spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
1457         ring = &rtlpci->tx_ring[hw_queue];
1458         if (hw_queue != BEACON_QUEUE)
1459                 idx = (ring->idx + skb_queue_len(&ring->queue)) %
1460                                 ring->entries;
1461         else
1462                 idx = 0;
1463
1464         pdesc = &ring->desc[idx];
1465         own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc,
1466                         true, HW_DESC_OWN);
1467
1468         if ((own == 1) && (hw_queue != BEACON_QUEUE)) {
1469                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1470                          "No more TX desc@%d, ring->idx = %d, idx = %d, skb_queue_len = 0x%d\n",
1471                          hw_queue, ring->idx, idx,
1472                          skb_queue_len(&ring->queue));
1473
1474                 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1475                 return skb->len;
1476         }
1477
1478         if (ieee80211_is_data_qos(fc)) {
1479                 tid = rtl_get_tid(skb);
1480                 if (sta) {
1481                         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1482                         seq_number = (le16_to_cpu(hdr->seq_ctrl) &
1483                                       IEEE80211_SCTL_SEQ) >> 4;
1484                         seq_number += 1;
1485
1486                         if (!ieee80211_has_morefrags(hdr->frame_control))
1487                                 sta_entry->tids[tid].seq_number = seq_number;
1488                 }
1489         }
1490
1491         if (ieee80211_is_data(fc))
1492                 rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX);
1493
1494         rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc,
1495                         info, sta, skb, hw_queue, ptcb_desc);
1496
1497         __skb_queue_tail(&ring->queue, skb);
1498
1499         rtlpriv->cfg->ops->set_desc((u8 *)pdesc, true,
1500                                     HW_DESC_OWN, &temp_one);
1501
1502
1503         if ((ring->entries - skb_queue_len(&ring->queue)) < 2 &&
1504             hw_queue != BEACON_QUEUE) {
1505
1506                 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
1507                          "less desc left, stop skb_queue@%d, ring->idx = %d, idx = %d, skb_queue_len = 0x%d\n",
1508                          hw_queue, ring->idx, idx,
1509                          skb_queue_len(&ring->queue));
1510
1511                 ieee80211_stop_queue(hw, skb_get_queue_mapping(skb));
1512         }
1513
1514         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1515
1516         rtlpriv->cfg->ops->tx_polling(hw, hw_queue);
1517
1518         return 0;
1519 }
1520
1521 static void rtl_pci_flush(struct ieee80211_hw *hw, bool drop)
1522 {
1523         struct rtl_priv *rtlpriv = rtl_priv(hw);
1524         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1525         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1526         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1527         u16 i = 0;
1528         int queue_id;
1529         struct rtl8192_tx_ring *ring;
1530
1531         if (mac->skip_scan)
1532                 return;
1533
1534         for (queue_id = RTL_PCI_MAX_TX_QUEUE_COUNT - 1; queue_id >= 0;) {
1535                 u32 queue_len;
1536                 ring = &pcipriv->dev.tx_ring[queue_id];
1537                 queue_len = skb_queue_len(&ring->queue);
1538                 if (queue_len == 0 || queue_id == BEACON_QUEUE ||
1539                         queue_id == TXCMD_QUEUE) {
1540                         queue_id--;
1541                         continue;
1542                 } else {
1543                         msleep(20);
1544                         i++;
1545                 }
1546
1547                 /* we just wait 1s for all queues */
1548                 if (rtlpriv->psc.rfpwr_state == ERFOFF ||
1549                         is_hal_stop(rtlhal) || i >= 200)
1550                         return;
1551         }
1552 }
1553
1554 static void rtl_pci_deinit(struct ieee80211_hw *hw)
1555 {
1556         struct rtl_priv *rtlpriv = rtl_priv(hw);
1557         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1558
1559         _rtl_pci_deinit_trx_ring(hw);
1560
1561         synchronize_irq(rtlpci->pdev->irq);
1562         tasklet_kill(&rtlpriv->works.irq_tasklet);
1563         cancel_work_sync(&rtlpriv->works.lps_change_work);
1564
1565         flush_workqueue(rtlpriv->works.rtl_wq);
1566         destroy_workqueue(rtlpriv->works.rtl_wq);
1567
1568 }
1569
1570 static int rtl_pci_init(struct ieee80211_hw *hw, struct pci_dev *pdev)
1571 {
1572         struct rtl_priv *rtlpriv = rtl_priv(hw);
1573         int err;
1574
1575         _rtl_pci_init_struct(hw, pdev);
1576
1577         err = _rtl_pci_init_trx_ring(hw);
1578         if (err) {
1579                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1580                          "tx ring initialization failed\n");
1581                 return err;
1582         }
1583
1584         return 0;
1585 }
1586
1587 static int rtl_pci_start(struct ieee80211_hw *hw)
1588 {
1589         struct rtl_priv *rtlpriv = rtl_priv(hw);
1590         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1591         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1592         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1593
1594         int err;
1595
1596         rtl_pci_reset_trx_ring(hw);
1597
1598         rtlpci->driver_is_goingto_unload = false;
1599         err = rtlpriv->cfg->ops->hw_init(hw);
1600         if (err) {
1601                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1602                          "Failed to config hardware!\n");
1603                 return err;
1604         }
1605
1606         rtlpriv->cfg->ops->enable_interrupt(hw);
1607         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, "enable_interrupt OK\n");
1608
1609         rtl_init_rx_config(hw);
1610
1611         /*should be after adapter start and interrupt enable. */
1612         set_hal_start(rtlhal);
1613
1614         RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
1615
1616         rtlpci->up_first_time = false;
1617
1618         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "OK\n");
1619         return 0;
1620 }
1621
1622 static void rtl_pci_stop(struct ieee80211_hw *hw)
1623 {
1624         struct rtl_priv *rtlpriv = rtl_priv(hw);
1625         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1626         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1627         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1628         unsigned long flags;
1629         u8 RFInProgressTimeOut = 0;
1630
1631         /*
1632          *should be before disable interrupt&adapter
1633          *and will do it immediately.
1634          */
1635         set_hal_stop(rtlhal);
1636
1637         rtlpriv->cfg->ops->disable_interrupt(hw);
1638         cancel_work_sync(&rtlpriv->works.lps_change_work);
1639
1640         spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1641         while (ppsc->rfchange_inprogress) {
1642                 spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1643                 if (RFInProgressTimeOut > 100) {
1644                         spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1645                         break;
1646                 }
1647                 mdelay(1);
1648                 RFInProgressTimeOut++;
1649                 spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1650         }
1651         ppsc->rfchange_inprogress = true;
1652         spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1653
1654         rtlpci->driver_is_goingto_unload = true;
1655         rtlpriv->cfg->ops->hw_disable(hw);
1656         /* some things are not needed if firmware not available */
1657         if (!rtlpriv->max_fw_size)
1658                 return;
1659         rtlpriv->cfg->ops->led_control(hw, LED_CTL_POWER_OFF);
1660
1661         spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1662         ppsc->rfchange_inprogress = false;
1663         spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1664
1665         rtl_pci_enable_aspm(hw);
1666 }
1667
1668 static bool _rtl_pci_find_adapter(struct pci_dev *pdev,
1669                 struct ieee80211_hw *hw)
1670 {
1671         struct rtl_priv *rtlpriv = rtl_priv(hw);
1672         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1673         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1674         struct pci_dev *bridge_pdev = pdev->bus->self;
1675         u16 venderid;
1676         u16 deviceid;
1677         u8 revisionid;
1678         u16 irqline;
1679         u8 tmp;
1680
1681         pcipriv->ndis_adapter.pcibridge_vendor = PCI_BRIDGE_VENDOR_UNKNOWN;
1682         venderid = pdev->vendor;
1683         deviceid = pdev->device;
1684         pci_read_config_byte(pdev, 0x8, &revisionid);
1685         pci_read_config_word(pdev, 0x3C, &irqline);
1686
1687         /* PCI ID 0x10ec:0x8192 occurs for both RTL8192E, which uses
1688          * r8192e_pci, and RTL8192SE, which uses this driver. If the
1689          * revision ID is RTL_PCI_REVISION_ID_8192PCIE (0x01), then
1690          * the correct driver is r8192e_pci, thus this routine should
1691          * return false.
1692          */
1693         if (deviceid == RTL_PCI_8192SE_DID &&
1694             revisionid == RTL_PCI_REVISION_ID_8192PCIE)
1695                 return false;
1696
1697         if (deviceid == RTL_PCI_8192_DID ||
1698             deviceid == RTL_PCI_0044_DID ||
1699             deviceid == RTL_PCI_0047_DID ||
1700             deviceid == RTL_PCI_8192SE_DID ||
1701             deviceid == RTL_PCI_8174_DID ||
1702             deviceid == RTL_PCI_8173_DID ||
1703             deviceid == RTL_PCI_8172_DID ||
1704             deviceid == RTL_PCI_8171_DID) {
1705                 switch (revisionid) {
1706                 case RTL_PCI_REVISION_ID_8192PCIE:
1707                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1708                                  "8192 PCI-E is found - vid/did=%x/%x\n",
1709                                  venderid, deviceid);
1710                         rtlhal->hw_type = HARDWARE_TYPE_RTL8192E;
1711                         return false;
1712                 case RTL_PCI_REVISION_ID_8192SE:
1713                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1714                                  "8192SE is found - vid/did=%x/%x\n",
1715                                  venderid, deviceid);
1716                         rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE;
1717                         break;
1718                 default:
1719                         RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1720                                  "Err: Unknown device - vid/did=%x/%x\n",
1721                                  venderid, deviceid);
1722                         rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE;
1723                         break;
1724
1725                 }
1726         } else if (deviceid == RTL_PCI_8723AE_DID) {
1727                 rtlhal->hw_type = HARDWARE_TYPE_RTL8723AE;
1728                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1729                          "8723AE PCI-E is found - "
1730                          "vid/did=%x/%x\n", venderid, deviceid);
1731         } else if (deviceid == RTL_PCI_8192CET_DID ||
1732                    deviceid == RTL_PCI_8192CE_DID ||
1733                    deviceid == RTL_PCI_8191CE_DID ||
1734                    deviceid == RTL_PCI_8188CE_DID) {
1735                 rtlhal->hw_type = HARDWARE_TYPE_RTL8192CE;
1736                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1737                          "8192C PCI-E is found - vid/did=%x/%x\n",
1738                          venderid, deviceid);
1739         } else if (deviceid == RTL_PCI_8192DE_DID ||
1740                    deviceid == RTL_PCI_8192DE_DID2) {
1741                 rtlhal->hw_type = HARDWARE_TYPE_RTL8192DE;
1742                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1743                          "8192D PCI-E is found - vid/did=%x/%x\n",
1744                          venderid, deviceid);
1745         } else if (deviceid == RTL_PCI_8188EE_DID) {
1746                 rtlhal->hw_type = HARDWARE_TYPE_RTL8188EE;
1747                 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1748                          "Find adapter, Hardware type is 8188EE\n");
1749         } else {
1750                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1751                          "Err: Unknown device - vid/did=%x/%x\n",
1752                          venderid, deviceid);
1753
1754                 rtlhal->hw_type = RTL_DEFAULT_HARDWARE_TYPE;
1755         }
1756
1757         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192DE) {
1758                 if (revisionid == 0 || revisionid == 1) {
1759                         if (revisionid == 0) {
1760                                 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1761                                          "Find 92DE MAC0\n");
1762                                 rtlhal->interfaceindex = 0;
1763                         } else if (revisionid == 1) {
1764                                 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1765                                          "Find 92DE MAC1\n");
1766                                 rtlhal->interfaceindex = 1;
1767                         }
1768                 } else {
1769                         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1770                                  "Unknown device - VendorID/DeviceID=%x/%x, Revision=%x\n",
1771                                  venderid, deviceid, revisionid);
1772                         rtlhal->interfaceindex = 0;
1773                 }
1774         }
1775         /*find bus info */
1776         pcipriv->ndis_adapter.busnumber = pdev->bus->number;
1777         pcipriv->ndis_adapter.devnumber = PCI_SLOT(pdev->devfn);
1778         pcipriv->ndis_adapter.funcnumber = PCI_FUNC(pdev->devfn);
1779
1780         /* some ARM have no bridge_pdev and will crash here
1781          * so we should check if bridge_pdev is NULL
1782          */
1783         if (bridge_pdev) {
1784                 /*find bridge info if available */
1785                 pcipriv->ndis_adapter.pcibridge_vendorid = bridge_pdev->vendor;
1786                 for (tmp = 0; tmp < PCI_BRIDGE_VENDOR_MAX; tmp++) {
1787                         if (bridge_pdev->vendor == pcibridge_vendors[tmp]) {
1788                                 pcipriv->ndis_adapter.pcibridge_vendor = tmp;
1789                                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1790                                          "Pci Bridge Vendor is found index: %d\n",
1791                                          tmp);
1792                                 break;
1793                         }
1794                 }
1795         }
1796
1797         if (pcipriv->ndis_adapter.pcibridge_vendor !=
1798                 PCI_BRIDGE_VENDOR_UNKNOWN) {
1799                 pcipriv->ndis_adapter.pcibridge_busnum =
1800                     bridge_pdev->bus->number;
1801                 pcipriv->ndis_adapter.pcibridge_devnum =
1802                     PCI_SLOT(bridge_pdev->devfn);
1803                 pcipriv->ndis_adapter.pcibridge_funcnum =
1804                     PCI_FUNC(bridge_pdev->devfn);
1805                 pcipriv->ndis_adapter.pcibridge_pciehdr_offset =
1806                     pci_pcie_cap(bridge_pdev);
1807                 pcipriv->ndis_adapter.num4bytes =
1808                     (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10) / 4;
1809
1810                 rtl_pci_get_linkcontrol_field(hw);
1811
1812                 if (pcipriv->ndis_adapter.pcibridge_vendor ==
1813                     PCI_BRIDGE_VENDOR_AMD) {
1814                         pcipriv->ndis_adapter.amd_l1_patch =
1815                             rtl_pci_get_amd_l1_patch(hw);
1816                 }
1817         }
1818
1819         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1820                  "pcidev busnumber:devnumber:funcnumber:vendor:link_ctl %d:%d:%d:%x:%x\n",
1821                  pcipriv->ndis_adapter.busnumber,
1822                  pcipriv->ndis_adapter.devnumber,
1823                  pcipriv->ndis_adapter.funcnumber,
1824                  pdev->vendor, pcipriv->ndis_adapter.linkctrl_reg);
1825
1826         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1827                  "pci_bridge busnumber:devnumber:funcnumber:vendor:pcie_cap:link_ctl_reg:amd %d:%d:%d:%x:%x:%x:%x\n",
1828                  pcipriv->ndis_adapter.pcibridge_busnum,
1829                  pcipriv->ndis_adapter.pcibridge_devnum,
1830                  pcipriv->ndis_adapter.pcibridge_funcnum,
1831                  pcibridge_vendors[pcipriv->ndis_adapter.pcibridge_vendor],
1832                  pcipriv->ndis_adapter.pcibridge_pciehdr_offset,
1833                  pcipriv->ndis_adapter.pcibridge_linkctrlreg,
1834                  pcipriv->ndis_adapter.amd_l1_patch);
1835
1836         rtl_pci_parse_configuration(pdev, hw);
1837         list_add_tail(&rtlpriv->list, &rtlpriv->glb_var->glb_priv_list);
1838
1839         return true;
1840 }
1841
1842 int rtl_pci_probe(struct pci_dev *pdev,
1843                             const struct pci_device_id *id)
1844 {
1845         struct ieee80211_hw *hw = NULL;
1846
1847         struct rtl_priv *rtlpriv = NULL;
1848         struct rtl_pci_priv *pcipriv = NULL;
1849         struct rtl_pci *rtlpci;
1850         unsigned long pmem_start, pmem_len, pmem_flags;
1851         int err;
1852
1853         err = pci_enable_device(pdev);
1854         if (err) {
1855                 RT_ASSERT(false, "%s : Cannot enable new PCI device\n",
1856                           pci_name(pdev));
1857                 return err;
1858         }
1859
1860         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
1861                 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
1862                         RT_ASSERT(false,
1863                                   "Unable to obtain 32bit DMA for consistent allocations\n");
1864                         err = -ENOMEM;
1865                         goto fail1;
1866                 }
1867         }
1868
1869         pci_set_master(pdev);
1870
1871         hw = ieee80211_alloc_hw(sizeof(struct rtl_pci_priv) +
1872                                 sizeof(struct rtl_priv), &rtl_ops);
1873         if (!hw) {
1874                 RT_ASSERT(false,
1875                           "%s : ieee80211 alloc failed\n", pci_name(pdev));
1876                 err = -ENOMEM;
1877                 goto fail1;
1878         }
1879
1880         SET_IEEE80211_DEV(hw, &pdev->dev);
1881         pci_set_drvdata(pdev, hw);
1882
1883         rtlpriv = hw->priv;
1884         rtlpriv->hw = hw;
1885         pcipriv = (void *)rtlpriv->priv;
1886         pcipriv->dev.pdev = pdev;
1887         init_completion(&rtlpriv->firmware_loading_complete);
1888
1889         /* init cfg & intf_ops */
1890         rtlpriv->rtlhal.interface = INTF_PCI;
1891         rtlpriv->cfg = (struct rtl_hal_cfg *)(id->driver_data);
1892         rtlpriv->intf_ops = &rtl_pci_ops;
1893         rtlpriv->glb_var = &rtl_global_var;
1894
1895         /*
1896          *init dbgp flags before all
1897          *other functions, because we will
1898          *use it in other funtions like
1899          *RT_TRACE/RT_PRINT/RTL_PRINT_DATA
1900          *you can not use these macro
1901          *before this
1902          */
1903         rtl_dbgp_flag_init(hw);
1904
1905         /* MEM map */
1906         err = pci_request_regions(pdev, KBUILD_MODNAME);
1907         if (err) {
1908                 RT_ASSERT(false, "Can't obtain PCI resources\n");
1909                 goto fail1;
1910         }
1911
1912         pmem_start = pci_resource_start(pdev, rtlpriv->cfg->bar_id);
1913         pmem_len = pci_resource_len(pdev, rtlpriv->cfg->bar_id);
1914         pmem_flags = pci_resource_flags(pdev, rtlpriv->cfg->bar_id);
1915
1916         /*shared mem start */
1917         rtlpriv->io.pci_mem_start =
1918                         (unsigned long)pci_iomap(pdev,
1919                         rtlpriv->cfg->bar_id, pmem_len);
1920         if (rtlpriv->io.pci_mem_start == 0) {
1921                 RT_ASSERT(false, "Can't map PCI mem\n");
1922                 err = -ENOMEM;
1923                 goto fail2;
1924         }
1925
1926         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1927                  "mem mapped space: start: 0x%08lx len:%08lx flags:%08lx, after map:0x%08lx\n",
1928                  pmem_start, pmem_len, pmem_flags,
1929                  rtlpriv->io.pci_mem_start);
1930
1931         /* Disable Clk Request */
1932         pci_write_config_byte(pdev, 0x81, 0);
1933         /* leave D3 mode */
1934         pci_write_config_byte(pdev, 0x44, 0);
1935         pci_write_config_byte(pdev, 0x04, 0x06);
1936         pci_write_config_byte(pdev, 0x04, 0x07);
1937
1938         /* find adapter */
1939         if (!_rtl_pci_find_adapter(pdev, hw)) {
1940                 err = -ENODEV;
1941                 goto fail3;
1942         }
1943
1944         /* Init IO handler */
1945         _rtl_pci_io_handler_init(&pdev->dev, hw);
1946
1947         /*like read eeprom and so on */
1948         rtlpriv->cfg->ops->read_eeprom_info(hw);
1949
1950         /*aspm */
1951         rtl_pci_init_aspm(hw);
1952
1953         /* Init mac80211 sw */
1954         err = rtl_init_core(hw);
1955         if (err) {
1956                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1957                          "Can't allocate sw for mac80211\n");
1958                 goto fail3;
1959         }
1960
1961         /* Init PCI sw */
1962         err = rtl_pci_init(hw, pdev);
1963         if (err) {
1964                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Failed to init PCI\n");
1965                 goto fail3;
1966         }
1967
1968         if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
1969                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't init_sw_vars\n");
1970                 err = -ENODEV;
1971                 goto fail3;
1972         }
1973
1974         rtlpriv->cfg->ops->init_sw_leds(hw);
1975
1976         err = sysfs_create_group(&pdev->dev.kobj, &rtl_attribute_group);
1977         if (err) {
1978                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1979                          "failed to create sysfs device attributes\n");
1980                 goto fail3;
1981         }
1982
1983         rtlpci = rtl_pcidev(pcipriv);
1984         err = request_irq(rtlpci->pdev->irq, &_rtl_pci_interrupt,
1985                           IRQF_SHARED, KBUILD_MODNAME, hw);
1986         if (err) {
1987                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1988                          "%s: failed to register IRQ handler\n",
1989                          wiphy_name(hw->wiphy));
1990                 goto fail3;
1991         }
1992         rtlpci->irq_alloc = 1;
1993
1994         return 0;
1995
1996 fail3:
1997         rtl_deinit_core(hw);
1998
1999         if (rtlpriv->io.pci_mem_start != 0)
2000                 pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
2001
2002 fail2:
2003         pci_release_regions(pdev);
2004         complete(&rtlpriv->firmware_loading_complete);
2005
2006 fail1:
2007         if (hw)
2008                 ieee80211_free_hw(hw);
2009         pci_disable_device(pdev);
2010
2011         return err;
2012
2013 }
2014 EXPORT_SYMBOL(rtl_pci_probe);
2015
2016 void rtl_pci_disconnect(struct pci_dev *pdev)
2017 {
2018         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
2019         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
2020         struct rtl_priv *rtlpriv = rtl_priv(hw);
2021         struct rtl_pci *rtlpci = rtl_pcidev(pcipriv);
2022         struct rtl_mac *rtlmac = rtl_mac(rtlpriv);
2023
2024         /* just in case driver is removed before firmware callback */
2025         wait_for_completion(&rtlpriv->firmware_loading_complete);
2026         clear_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
2027
2028         sysfs_remove_group(&pdev->dev.kobj, &rtl_attribute_group);
2029
2030         /*ieee80211_unregister_hw will call ops_stop */
2031         if (rtlmac->mac80211_registered == 1) {
2032                 ieee80211_unregister_hw(hw);
2033                 rtlmac->mac80211_registered = 0;
2034         } else {
2035                 rtl_deinit_deferred_work(hw);
2036                 rtlpriv->intf_ops->adapter_stop(hw);
2037         }
2038         rtlpriv->cfg->ops->disable_interrupt(hw);
2039
2040         /*deinit rfkill */
2041         rtl_deinit_rfkill(hw);
2042
2043         rtl_pci_deinit(hw);
2044         rtl_deinit_core(hw);
2045         rtlpriv->cfg->ops->deinit_sw_vars(hw);
2046
2047         if (rtlpci->irq_alloc) {
2048                 synchronize_irq(rtlpci->pdev->irq);
2049                 free_irq(rtlpci->pdev->irq, hw);
2050                 rtlpci->irq_alloc = 0;
2051         }
2052
2053         list_del(&rtlpriv->list);
2054         if (rtlpriv->io.pci_mem_start != 0) {
2055                 pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
2056                 pci_release_regions(pdev);
2057         }
2058
2059         pci_disable_device(pdev);
2060
2061         rtl_pci_disable_aspm(hw);
2062
2063         ieee80211_free_hw(hw);
2064 }
2065 EXPORT_SYMBOL(rtl_pci_disconnect);
2066
2067 #ifdef CONFIG_PM_SLEEP
2068 /***************************************
2069 kernel pci power state define:
2070 PCI_D0         ((pci_power_t __force) 0)
2071 PCI_D1         ((pci_power_t __force) 1)
2072 PCI_D2         ((pci_power_t __force) 2)
2073 PCI_D3hot      ((pci_power_t __force) 3)
2074 PCI_D3cold     ((pci_power_t __force) 4)
2075 PCI_UNKNOWN    ((pci_power_t __force) 5)
2076
2077 This function is called when system
2078 goes into suspend state mac80211 will
2079 call rtl_mac_stop() from the mac80211
2080 suspend function first, So there is
2081 no need to call hw_disable here.
2082 ****************************************/
2083 int rtl_pci_suspend(struct device *dev)
2084 {
2085         struct pci_dev *pdev = to_pci_dev(dev);
2086         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
2087         struct rtl_priv *rtlpriv = rtl_priv(hw);
2088
2089         rtlpriv->cfg->ops->hw_suspend(hw);
2090         rtl_deinit_rfkill(hw);
2091
2092         return 0;
2093 }
2094 EXPORT_SYMBOL(rtl_pci_suspend);
2095
2096 int rtl_pci_resume(struct device *dev)
2097 {
2098         struct pci_dev *pdev = to_pci_dev(dev);
2099         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
2100         struct rtl_priv *rtlpriv = rtl_priv(hw);
2101
2102         rtlpriv->cfg->ops->hw_resume(hw);
2103         rtl_init_rfkill(hw);
2104         return 0;
2105 }
2106 EXPORT_SYMBOL(rtl_pci_resume);
2107 #endif /* CONFIG_PM_SLEEP */
2108
2109 struct rtl_intf_ops rtl_pci_ops = {
2110         .read_efuse_byte = read_efuse_byte,
2111         .adapter_start = rtl_pci_start,
2112         .adapter_stop = rtl_pci_stop,
2113         .check_buddy_priv = rtl_pci_check_buddy_priv,
2114         .adapter_tx = rtl_pci_tx,
2115         .flush = rtl_pci_flush,
2116         .reset_trx_ring = rtl_pci_reset_trx_ring,
2117         .waitq_insert = rtl_pci_tx_chk_waitq_insert,
2118
2119         .disable_aspm = rtl_pci_disable_aspm,
2120         .enable_aspm = rtl_pci_enable_aspm,
2121 };