drivers/net/wireless/rtlwifi/pci.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2010  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 "core.h"
  31 #include "wifi.h"
  32 #include "pci.h"
  33 #include "base.h"
  34 #include "ps.h"
  35 #include "efuse.h"
  36
  37 static const u16 pcibridge_vendors[PCI_BRIDGE_VENDOR_MAX] = {
  38         INTEL_VENDOR_ID,
  39         ATI_VENDOR_ID,
  40         AMD_VENDOR_ID,
  41         SIS_VENDOR_ID
  42 };
  43
  44 static const u8 ac_to_hwq[] = {
  45         VO_QUEUE,
  46         VI_QUEUE,
  47         BE_QUEUE,
  48         BK_QUEUE
  49 };
  50
  51 static u8 _rtl_mac_to_hwqueue(struct ieee80211_hw *hw,
  52                        struct sk_buff *skb)
  53 {
  54         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
  55         __le16 fc = rtl_get_fc(skb);
  56         u8 queue_index = skb_get_queue_mapping(skb);
  57
  58         if (unlikely(ieee80211_is_beacon(fc)))
  59                 return BEACON_QUEUE;
  60         if (ieee80211_is_mgmt(fc))
  61                 return MGNT_QUEUE;
  62         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE)
  63                 if (ieee80211_is_nullfunc(fc))
  64                         return HIGH_QUEUE;
  65
  66         return ac_to_hwq[queue_index];
  67 }
  68
  69 /* Update PCI dependent default settings*/
  70 static void _rtl_pci_update_default_setting(struct ieee80211_hw *hw)
  71 {
  72         struct rtl_priv *rtlpriv = rtl_priv(hw);
  73         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
  74         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
  75         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
  76         u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
  77         u8 init_aspm;
  78
  79         ppsc->reg_rfps_level = 0;
  80         ppsc->support_aspm = 0;
  81
  82         /*Update PCI ASPM setting */
  83         ppsc->const_amdpci_aspm = rtlpci->const_amdpci_aspm;
  84         switch (rtlpci->const_pci_aspm) {
  85         case 0:
  86                 /*No ASPM */
  87                 break;
  88
  89         case 1:
  90                 /*ASPM dynamically enabled/disable. */
  91                 ppsc->reg_rfps_level |= RT_RF_LPS_LEVEL_ASPM;
  92                 break;
  93
  94         case 2:
  95                 /*ASPM with Clock Req dynamically enabled/disable. */
  96                 ppsc->reg_rfps_level |= (RT_RF_LPS_LEVEL_ASPM |
  97                                          RT_RF_OFF_LEVL_CLK_REQ);
  98                 break;
  99
 100         case 3:
 101                 /*
 102                  * Always enable ASPM and Clock Req
 103                  * from initialization to halt.
 104                  * */
 105                 ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM);
 106                 ppsc->reg_rfps_level |= (RT_RF_PS_LEVEL_ALWAYS_ASPM |
 107                                          RT_RF_OFF_LEVL_CLK_REQ);
 108                 break;
 109
 110         case 4:
 111                 /*
 112                  * Always enable ASPM without Clock Req
 113                  * from initialization to halt.
 114                  * */
 115                 ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM |
 116                                           RT_RF_OFF_LEVL_CLK_REQ);
 117                 ppsc->reg_rfps_level |= RT_RF_PS_LEVEL_ALWAYS_ASPM;
 118                 break;
 119         }
 120
 121         ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC;
 122
 123         /*Update Radio OFF setting */
 124         switch (rtlpci->const_hwsw_rfoff_d3) {
 125         case 1:
 126                 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM)
 127                         ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM;
 128                 break;
 129
 130         case 2:
 131                 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM)
 132                         ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM;
 133                 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC;
 134                 break;
 135
 136         case 3:
 137                 ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_PCI_D3;
 138                 break;
 139         }
 140
 141         /*Set HW definition to determine if it supports ASPM. */
 142         switch (rtlpci->const_support_pciaspm) {
 143         case 0:{
 144                         /*Not support ASPM. */
 145                         bool support_aspm = false;
 146                         ppsc->support_aspm = support_aspm;
 147                         break;
 148                 }
 149         case 1:{
 150                         /*Support ASPM. */
 151                         bool support_aspm = true;
 152                         bool support_backdoor = true;
 153                         ppsc->support_aspm = support_aspm;
 154
 155                         /*if (priv->oem_id == RT_CID_TOSHIBA &&
 156                            !priv->ndis_adapter.amd_l1_patch)
 157                            support_backdoor = false; */
 158
 159                         ppsc->support_backdoor = support_backdoor;
 160
 161                         break;
 162                 }
 163         case 2:
 164                 /*ASPM value set by chipset. */
 165                 if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL) {
 166                         bool support_aspm = true;
 167                         ppsc->support_aspm = support_aspm;
 168                 }
 169                 break;
 170         default:
 171                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
 172                          ("switch case not process\n"));
 173                 break;
 174         }
 175
 176         /* toshiba aspm issue, toshiba will set aspm selfly
 177          * so we should not set aspm in driver */
 178         pci_read_config_byte(rtlpci->pdev, 0x80, &init_aspm);
 179         if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8192SE &&
 180                 init_aspm == 0x43)
 181                 ppsc->support_aspm = false;
 182 }
 183
 184 static bool _rtl_pci_platform_switch_device_pci_aspm(
 185                         struct ieee80211_hw *hw,
 186                         u8 value)
 187 {
 188         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 189         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 190
 191         if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192SE)
 192                 value |= 0x40;
 193
 194         pci_write_config_byte(rtlpci->pdev, 0x80, value);
 195
 196         return false;
 197 }
 198
 199 /*When we set 0x01 to enable clk request. Set 0x0 to disable clk req.*/
 200 static bool _rtl_pci_switch_clk_req(struct ieee80211_hw *hw, u8 value)
 201 {
 202         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 203         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 204
 205         pci_write_config_byte(rtlpci->pdev, 0x81, value);
 206
 207         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE)
 208                 udelay(100);
 209
 210         return true;
 211 }
 212
 213 /*Disable RTL8192SE ASPM & Disable Pci Bridge ASPM*/
 214 static void rtl_pci_disable_aspm(struct ieee80211_hw *hw)
 215 {
 216         struct rtl_priv *rtlpriv = rtl_priv(hw);
 217         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 218         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 219         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 220         u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
 221         u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
 222         u8 num4bytes = pcipriv->ndis_adapter.num4bytes;
 223         /*Retrieve original configuration settings. */
 224         u8 linkctrl_reg = pcipriv->ndis_adapter.linkctrl_reg;
 225         u16 pcibridge_linkctrlreg = pcipriv->ndis_adapter.
 226                                 pcibridge_linkctrlreg;
 227         u16 aspmlevel = 0;
 228         u8 tmp_u1b = 0;
 229
 230         if (!ppsc->support_aspm)
 231                 return;
 232
 233         if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) {
 234                 RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
 235                          ("PCI(Bridge) UNKNOWN.\n"));
 236
 237                 return;
 238         }
 239
 240         if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) {
 241                 RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ);
 242                 _rtl_pci_switch_clk_req(hw, 0x0);
 243         }
 244
 245         /*for promising device will in L0 state after an I/O. */
 246         pci_read_config_byte(rtlpci->pdev, 0x80, &tmp_u1b);
 247
 248         /*Set corresponding value. */
 249         aspmlevel |= BIT(0) | BIT(1);
 250         linkctrl_reg &= ~aspmlevel;
 251         pcibridge_linkctrlreg &= ~(BIT(0) | BIT(1));
 252
 253         _rtl_pci_platform_switch_device_pci_aspm(hw, linkctrl_reg);
 254         udelay(50);
 255
 256         /*4 Disable Pci Bridge ASPM */
 257         rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
 258                                      pcicfg_addrport + (num4bytes << 2));
 259         rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, pcibridge_linkctrlreg);
 260
 261         udelay(50);
 262 }
 263
 264 /*
 265  *Enable RTL8192SE ASPM & Enable Pci Bridge ASPM for
 266  *power saving We should follow the sequence to enable
 267  *RTL8192SE first then enable Pci Bridge ASPM
 268  *or the system will show bluescreen.
 269  */
 270 static void rtl_pci_enable_aspm(struct ieee80211_hw *hw)
 271 {
 272         struct rtl_priv *rtlpriv = rtl_priv(hw);
 273         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 274         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 275         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 276         u8 pcibridge_busnum = pcipriv->ndis_adapter.pcibridge_busnum;
 277         u8 pcibridge_devnum = pcipriv->ndis_adapter.pcibridge_devnum;
 278         u8 pcibridge_funcnum = pcipriv->ndis_adapter.pcibridge_funcnum;
 279         u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
 280         u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
 281         u8 num4bytes = pcipriv->ndis_adapter.num4bytes;
 282         u16 aspmlevel;
 283         u8 u_pcibridge_aspmsetting;
 284         u8 u_device_aspmsetting;
 285
 286         if (!ppsc->support_aspm)
 287                 return;
 288
 289         if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) {
 290                 RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
 291                          ("PCI(Bridge) UNKNOWN.\n"));
 292                 return;
 293         }
 294
 295         /*4 Enable Pci Bridge ASPM */
 296         rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
 297                                      pcicfg_addrport + (num4bytes << 2));
 298
 299         u_pcibridge_aspmsetting =
 300             pcipriv->ndis_adapter.pcibridge_linkctrlreg |
 301             rtlpci->const_hostpci_aspm_setting;
 302
 303         if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL)
 304                 u_pcibridge_aspmsetting &= ~BIT(0);
 305
 306         rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, u_pcibridge_aspmsetting);
 307
 308         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
 309                  ("PlatformEnableASPM():PciBridge busnumber[%x], "
 310                   "DevNumbe[%x], funcnumber[%x], Write reg[%x] = %x\n",
 311                   pcibridge_busnum, pcibridge_devnum, pcibridge_funcnum,
 312                   (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10),
 313                   u_pcibridge_aspmsetting));
 314
 315         udelay(50);
 316
 317         /*Get ASPM level (with/without Clock Req) */
 318         aspmlevel = rtlpci->const_devicepci_aspm_setting;
 319         u_device_aspmsetting = pcipriv->ndis_adapter.linkctrl_reg;
 320
 321         /*_rtl_pci_platform_switch_device_pci_aspm(dev,*/
 322         /*(priv->ndis_adapter.linkctrl_reg | ASPMLevel)); */
 323
 324         u_device_aspmsetting |= aspmlevel;
 325
 326         _rtl_pci_platform_switch_device_pci_aspm(hw, u_device_aspmsetting);
 327
 328         if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) {
 329                 _rtl_pci_switch_clk_req(hw, (ppsc->reg_rfps_level &
 330                                              RT_RF_OFF_LEVL_CLK_REQ) ? 1 : 0);
 331                 RT_SET_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ);
 332         }
 333         udelay(100);
 334 }
 335
 336 static bool rtl_pci_get_amd_l1_patch(struct ieee80211_hw *hw)
 337 {
 338         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 339         u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
 340
 341         bool status = false;
 342         u8 offset_e0;
 343         unsigned offset_e4;
 344
 345         rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
 346                         pcicfg_addrport + 0xE0);
 347         rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, 0xA0);
 348
 349         rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
 350                         pcicfg_addrport + 0xE0);
 351         rtl_pci_raw_read_port_uchar(PCI_CONF_DATA, &offset_e0);
 352
 353         if (offset_e0 == 0xA0) {
 354                 rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
 355                                              pcicfg_addrport + 0xE4);
 356                 rtl_pci_raw_read_port_ulong(PCI_CONF_DATA, &offset_e4);
 357                 if (offset_e4 & BIT(23))
 358                         status = true;
 359         }
 360
 361         return status;
 362 }
 363
 364 static void rtl_pci_get_linkcontrol_field(struct ieee80211_hw *hw)
 365 {
 366         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 367         u8 capabilityoffset = pcipriv->ndis_adapter.pcibridge_pciehdr_offset;
 368         u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
 369         u8 linkctrl_reg;
 370         u8 num4bbytes;
 371
 372         num4bbytes = (capabilityoffset + 0x10) / 4;
 373
 374         /*Read  Link Control Register */
 375         rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
 376                                      pcicfg_addrport + (num4bbytes << 2));
 377         rtl_pci_raw_read_port_uchar(PCI_CONF_DATA, &linkctrl_reg);
 378
 379         pcipriv->ndis_adapter.pcibridge_linkctrlreg = linkctrl_reg;
 380 }
 381
 382 static void rtl_pci_parse_configuration(struct pci_dev *pdev,
 383                 struct ieee80211_hw *hw)
 384 {
 385         struct rtl_priv *rtlpriv = rtl_priv(hw);
 386         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
 387
 388         u8 tmp;
 389         int pos;
 390         u8 linkctrl_reg;
 391
 392         /*Link Control Register */
 393         pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
 394         pci_read_config_byte(pdev, pos + PCI_EXP_LNKCTL, &linkctrl_reg);
 395         pcipriv->ndis_adapter.linkctrl_reg = linkctrl_reg;
 396
 397         RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
 398                  ("Link Control Register =%x\n",
 399                   pcipriv->ndis_adapter.linkctrl_reg));
 400
 401         pci_read_config_byte(pdev, 0x98, &tmp);
 402         tmp |= BIT(4);
 403         pci_write_config_byte(pdev, 0x98, tmp);
 404
 405         tmp = 0x17;
 406         pci_write_config_byte(pdev, 0x70f, tmp);
 407 }
 408
 409 static void rtl_pci_init_aspm(struct ieee80211_hw *hw)
 410 {
 411         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 412
 413         _rtl_pci_update_default_setting(hw);
 414
 415         if (ppsc->reg_rfps_level & RT_RF_PS_LEVEL_ALWAYS_ASPM) {
 416                 /*Always enable ASPM & Clock Req. */
 417                 rtl_pci_enable_aspm(hw);
 418                 RT_SET_PS_LEVEL(ppsc, RT_RF_PS_LEVEL_ALWAYS_ASPM);
 419         }
 420
 421 }
 422
 423 static void _rtl_pci_io_handler_init(struct device *dev,
 424                                      struct ieee80211_hw *hw)
 425 {
 426         struct rtl_priv *rtlpriv = rtl_priv(hw);
 427
 428         rtlpriv->io.dev = dev;
 429
 430         rtlpriv->io.write8_async = pci_write8_async;
 431         rtlpriv->io.write16_async = pci_write16_async;
 432         rtlpriv->io.write32_async = pci_write32_async;
 433
 434         rtlpriv->io.read8_sync = pci_read8_sync;
 435         rtlpriv->io.read16_sync = pci_read16_sync;
 436         rtlpriv->io.read32_sync = pci_read32_sync;
 437
 438 }
 439
 440 static void _rtl_pci_io_handler_release(struct ieee80211_hw *hw)
 441 {
 442 }
 443
 444 static bool _rtl_update_earlymode_info(struct ieee80211_hw *hw,
 445                 struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc, u8 tid)
 446 {
 447         struct rtl_priv *rtlpriv = rtl_priv(hw);
 448         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 449         u8 additionlen = FCS_LEN;
 450         struct sk_buff *next_skb;
 451
 452         /* here open is 4, wep/tkip is 8, aes is 12*/
 453         if (info->control.hw_key)
 454                 additionlen += info->control.hw_key->icv_len;
 455
 456         /* The most skb num is 6 */
 457         tcb_desc->empkt_num = 0;
 458         spin_lock_bh(&rtlpriv->locks.waitq_lock);
 459         skb_queue_walk(&rtlpriv->mac80211.skb_waitq[tid], next_skb) {
 460                 struct ieee80211_tx_info *next_info;
 461
 462                 next_info = IEEE80211_SKB_CB(next_skb);
 463                 if (next_info->flags & IEEE80211_TX_CTL_AMPDU) {
 464                         tcb_desc->empkt_len[tcb_desc->empkt_num] =
 465                                 next_skb->len + additionlen;
 466                         tcb_desc->empkt_num++;
 467                 } else {
 468                         break;
 469                 }
 470
 471                 if (skb_queue_is_last(&rtlpriv->mac80211.skb_waitq[tid],
 472                                       next_skb))
 473                         break;
 474
 475                 if (tcb_desc->empkt_num >= 5)
 476                         break;
 477         }
 478         spin_unlock_bh(&rtlpriv->locks.waitq_lock);
 479
 480         return true;
 481 }
 482
 483 /* just for early mode now */
 484 static void _rtl_pci_tx_chk_waitq(struct ieee80211_hw *hw)
 485 {
 486         struct rtl_priv *rtlpriv = rtl_priv(hw);
 487         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 488         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 489         struct sk_buff *skb = NULL;
 490         struct ieee80211_tx_info *info = NULL;
 491         int tid; /* should be int */
 492
 493         if (!rtlpriv->rtlhal.earlymode_enable)
 494                 return;
 495
 496         /* we juse use em for BE/BK/VI/VO */
 497         for (tid = 7; tid >= 0; tid--) {
 498                 u8 hw_queue = ac_to_hwq[rtl_tid_to_ac(hw, tid)];
 499                 struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
 500                 while (!mac->act_scanning &&
 501                        rtlpriv->psc.rfpwr_state == ERFON) {
 502                         struct rtl_tcb_desc tcb_desc;
 503                         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
 504
 505                         spin_lock_bh(&rtlpriv->locks.waitq_lock);
 506                         if (!skb_queue_empty(&mac->skb_waitq[tid]) &&
 507                            (ring->entries - skb_queue_len(&ring->queue) > 5)) {
 508                                 skb = skb_dequeue(&mac->skb_waitq[tid]);
 509                         } else {
 510                                 spin_unlock_bh(&rtlpriv->locks.waitq_lock);
 511                                 break;
 512                         }
 513                         spin_unlock_bh(&rtlpriv->locks.waitq_lock);
 514
 515                         /* Some macaddr can't do early mode. like
 516                          * multicast/broadcast/no_qos data */
 517                         info = IEEE80211_SKB_CB(skb);
 518                         if (info->flags & IEEE80211_TX_CTL_AMPDU)
 519                                 _rtl_update_earlymode_info(hw, skb,
 520                                                            &tcb_desc, tid);
 521
 522                         rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc);
 523                 }
 524         }
 525 }
 526
 527
 528 static void _rtl_pci_tx_isr(struct ieee80211_hw *hw, int prio)
 529 {
 530         struct rtl_priv *rtlpriv = rtl_priv(hw);
 531         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 532
 533         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio];
 534
 535         while (skb_queue_len(&ring->queue)) {
 536                 struct rtl_tx_desc *entry = &ring->desc[ring->idx];
 537                 struct sk_buff *skb;
 538                 struct ieee80211_tx_info *info;
 539                 __le16 fc;
 540                 u8 tid;
 541
 542                 u8 own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) entry, true,
 543                                                           HW_DESC_OWN);
 544
 545                 /*
 546                  *beacon packet will only use the first
 547                  *descriptor defautly,and the own may not
 548                  *be cleared by the hardware
 549                  */
 550                 if (own)
 551                         return;
 552                 ring->idx = (ring->idx + 1) % ring->entries;
 553
 554                 skb = __skb_dequeue(&ring->queue);
 555                 pci_unmap_single(rtlpci->pdev,
 556                                  rtlpriv->cfg->ops->
 557                                              get_desc((u8 *) entry, true,
 558                                                       HW_DESC_TXBUFF_ADDR),
 559                                  skb->len, PCI_DMA_TODEVICE);
 560
 561                 /* remove early mode header */
 562                 if (rtlpriv->rtlhal.earlymode_enable)
 563                         skb_pull(skb, EM_HDR_LEN);
 564
 565                 RT_TRACE(rtlpriv, (COMP_INTR | COMP_SEND), DBG_TRACE,
 566                          ("new ring->idx:%d, "
 567                           "free: skb_queue_len:%d, free: seq:%x\n",
 568                           ring->idx,
 569                           skb_queue_len(&ring->queue),
 570                           *(u16 *) (skb->data + 22)));
 571
 572                 if (prio == TXCMD_QUEUE) {
 573                         dev_kfree_skb(skb);
 574                         goto tx_status_ok;
 575
 576                 }
 577
 578                 /* for sw LPS, just after NULL skb send out, we can
 579                  * sure AP kown we are sleeped, our we should not let
 580                  * rf to sleep*/
 581                 fc = rtl_get_fc(skb);
 582                 if (ieee80211_is_nullfunc(fc)) {
 583                         if (ieee80211_has_pm(fc)) {
 584                                 rtlpriv->mac80211.offchan_deley = true;
 585                                 rtlpriv->psc.state_inap = 1;
 586                         } else {
 587                                 rtlpriv->psc.state_inap = 0;
 588                         }
 589                 }
 590
 591                 /* update tid tx pkt num */
 592                 tid = rtl_get_tid(skb);
 593                 if (tid <= 7)
 594                         rtlpriv->link_info.tidtx_inperiod[tid]++;
 595
 596                 info = IEEE80211_SKB_CB(skb);
 597                 ieee80211_tx_info_clear_status(info);
 598
 599                 info->flags |= IEEE80211_TX_STAT_ACK;
 600                 /*info->status.rates[0].count = 1; */
 601
 602                 ieee80211_tx_status_irqsafe(hw, skb);
 603
 604                 if ((ring->entries - skb_queue_len(&ring->queue))
 605                                 == 2) {
 606
 607                         RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
 608                                         ("more desc left, wake"
 609                                          "skb_queue@%d,ring->idx = %d,"
 610                                          "skb_queue_len = 0x%d\n",
 611                                          prio, ring->idx,
 612                                          skb_queue_len(&ring->queue)));
 613
 614                         ieee80211_wake_queue(hw,
 615                                         skb_get_queue_mapping
 616                                         (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
 629 static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
 630 {
 631         struct rtl_priv *rtlpriv = rtl_priv(hw);
 632         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 633         int rx_queue_idx = RTL_PCI_RX_MPDU_QUEUE;
 634
 635         struct ieee80211_rx_status rx_status = { 0 };
 636         unsigned int count = rtlpci->rxringcount;
 637         u8 own;
 638         u8 tmp_one;
 639         u32 bufferaddress;
 640         bool unicast = false;
 641
 642         struct rtl_stats stats = {
 643                 .signal = 0,
 644                 .noise = -98,
 645                 .rate = 0,
 646         };
 647
 648         /*RX NORMAL PKT */
 649         while (count--) {
 650                 /*rx descriptor */
 651                 struct rtl_rx_desc *pdesc = &rtlpci->rx_ring[rx_queue_idx].desc[
 652                                 rtlpci->rx_ring[rx_queue_idx].idx];
 653                 /*rx pkt */
 654                 struct sk_buff *skb = rtlpci->rx_ring[rx_queue_idx].rx_buf[
 655                                 rtlpci->rx_ring[rx_queue_idx].idx];
 656
 657                 own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc,
 658                                                        false, HW_DESC_OWN);
 659
 660                 if (own) {
 661                         /*wait data to be filled by hardware */
 662                         return;
 663                 } else {
 664                         struct ieee80211_hdr *hdr;
 665                         __le16 fc;
 666                         struct sk_buff *new_skb = NULL;
 667
 668                         rtlpriv->cfg->ops->query_rx_desc(hw, &stats,
 669                                                          &rx_status,
 670                                                          (u8 *) pdesc, skb);
 671
 672                         new_skb = dev_alloc_skb(rtlpci->rxbuffersize);
 673                         if (unlikely(!new_skb)) {
 674                                 RT_TRACE(rtlpriv, (COMP_INTR | COMP_RECV),
 675                                          DBG_DMESG,
 676                                          ("can't alloc skb for rx\n"));
 677                                 goto done;
 678                         }
 679
 680                         pci_unmap_single(rtlpci->pdev,
 681                                          *((dma_addr_t *) skb->cb),
 682                                          rtlpci->rxbuffersize,
 683                                          PCI_DMA_FROMDEVICE);
 684
 685                         skb_put(skb, rtlpriv->cfg->ops->get_desc((u8 *) pdesc,
 686                                                          false,
 687                                                          HW_DESC_RXPKT_LEN));
 688                         skb_reserve(skb,
 689                                     stats.rx_drvinfo_size + stats.rx_bufshift);
 690
 691                         /*
 692                          *NOTICE This can not be use for mac80211,
 693                          *this is done in mac80211 code,
 694                          *if you done here sec DHCP will fail
 695                          *skb_trim(skb, skb->len - 4);
 696                          */
 697
 698                         hdr = rtl_get_hdr(skb);
 699                         fc = rtl_get_fc(skb);
 700
 701                         if (!stats.crc && !stats.hwerror) {
 702                                 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status,
 703                                        sizeof(rx_status));
 704
 705                                 if (is_broadcast_ether_addr(hdr->addr1)) {
 706                                         ;/*TODO*/
 707                                 } else if (is_multicast_ether_addr(hdr->addr1)) {
 708                                         ;/*TODO*/
 709                                 } else {
 710                                         unicast = true;
 711                                         rtlpriv->stats.rxbytesunicast +=
 712                                             skb->len;
 713                                 }
 714
 715                                 rtl_is_special_data(hw, skb, false);
 716
 717                                 if (ieee80211_is_data(fc)) {
 718                                         rtlpriv->cfg->ops->led_control(hw,
 719                                                                LED_CTL_RX);
 720
 721                                         if (unicast)
 722                                                 rtlpriv->link_info.
 723                                                     num_rx_inperiod++;
 724                                 }
 725
 726                                 /* for sw lps */
 727                                 rtl_swlps_beacon(hw, (void *)skb->data,
 728                                                  skb->len);
 729                                 rtl_recognize_peer(hw, (void *)skb->data,
 730                                                    skb->len);
 731                                 if ((rtlpriv->mac80211.opmode ==
 732                                      NL80211_IFTYPE_AP) &&
 733                                     (rtlpriv->rtlhal.current_bandtype ==
 734                                      BAND_ON_2_4G) &&
 735                                      (ieee80211_is_beacon(fc) ||
 736                                      ieee80211_is_probe_resp(fc))) {
 737                                         dev_kfree_skb_any(skb);
 738                                 } else {
 739                                         if (unlikely(!rtl_action_proc(hw, skb,
 740                                             false))) {
 741                                                 dev_kfree_skb_any(skb);
 742                                         } else {
 743                                                 struct sk_buff *uskb = NULL;
 744                                                 u8 *pdata;
 745                                                 uskb = dev_alloc_skb(skb->len
 746                                                                      + 128);
 747                                                 memcpy(IEEE80211_SKB_RXCB(uskb),
 748                                                        &rx_status,
 749                                                        sizeof(rx_status));
 750                                                 pdata = (u8 *)skb_put(uskb,
 751                                                         skb->len);
 752                                                 memcpy(pdata, skb->data,
 753                                                        skb->len);
 754                                                 dev_kfree_skb_any(skb);
 755
 756                                                 ieee80211_rx_irqsafe(hw, uskb);
 757                                         }
 758                                 }
 759                         } else {
 760                                 dev_kfree_skb_any(skb);
 761                         }
 762
 763                         if (((rtlpriv->link_info.num_rx_inperiod +
 764                                 rtlpriv->link_info.num_tx_inperiod) > 8) ||
 765                                 (rtlpriv->link_info.num_rx_inperiod > 2)) {
 766                                 rtl_lps_leave(hw);
 767                         }
 768
 769                         skb = new_skb;
 770
 771                         rtlpci->rx_ring[rx_queue_idx].rx_buf[rtlpci->
 772                                                              rx_ring
 773                                                              [rx_queue_idx].
 774                                                              idx] = skb;
 775                         *((dma_addr_t *) skb->cb) =
 776                             pci_map_single(rtlpci->pdev, skb_tail_pointer(skb),
 777                                            rtlpci->rxbuffersize,
 778                                            PCI_DMA_FROMDEVICE);
 779
 780                 }
 781 done:
 782                 bufferaddress = (*((dma_addr_t *)skb->cb));
 783                 tmp_one = 1;
 784                 rtlpriv->cfg->ops->set_desc((u8 *) pdesc, false,
 785                                             HW_DESC_RXBUFF_ADDR,
 786                                             (u8 *)&bufferaddress);
 787                 rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXOWN,
 788                                             (u8 *)&tmp_one);
 789                 rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false,
 790                                             HW_DESC_RXPKT_LEN,
 791                                             (u8 *)&rtlpci->rxbuffersize);
 792
 793                 if (rtlpci->rx_ring[rx_queue_idx].idx ==
 794                     rtlpci->rxringcount - 1)
 795                         rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false,
 796                                                     HW_DESC_RXERO,
 797                                                     (u8 *)&tmp_one);
 798
 799                 rtlpci->rx_ring[rx_queue_idx].idx =
 800                     (rtlpci->rx_ring[rx_queue_idx].idx + 1) %
 801                     rtlpci->rxringcount;
 802         }
 803
 804 }
 805
 806 static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id)
 807 {
 808         struct ieee80211_hw *hw = dev_id;
 809         struct rtl_priv *rtlpriv = rtl_priv(hw);
 810         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 811         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 812         unsigned long flags;
 813         u32 inta = 0;
 814         u32 intb = 0;
 815
 816         if (rtlpci->irq_enabled == 0)
 817                 return IRQ_HANDLED;
 818
 819         spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
 820
 821         /*read ISR: 4/8bytes */
 822         rtlpriv->cfg->ops->interrupt_recognized(hw, &inta, &intb);
 823
 824         /*Shared IRQ or HW disappared */
 825         if (!inta || inta == 0xffff)
 826                 goto done;
 827
 828         /*<1> beacon related */
 829         if (inta & rtlpriv->cfg->maps[RTL_IMR_TBDOK]) {
 830                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 831                          ("beacon ok interrupt!\n"));
 832         }
 833
 834         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TBDER])) {
 835                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 836                          ("beacon err interrupt!\n"));
 837         }
 838
 839         if (inta & rtlpriv->cfg->maps[RTL_IMR_BDOK]) {
 840                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 841                          ("beacon interrupt!\n"));
 842         }
 843
 844         if (inta & rtlpriv->cfg->maps[RTL_IMR_BcnInt]) {
 845                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 846                          ("prepare beacon for interrupt!\n"));
 847                 tasklet_schedule(&rtlpriv->works.irq_prepare_bcn_tasklet);
 848         }
 849
 850         /*<3> Tx related */
 851         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TXFOVW]))
 852                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("IMR_TXFOVW!\n"));
 853
 854         if (inta & rtlpriv->cfg->maps[RTL_IMR_MGNTDOK]) {
 855                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 856                          ("Manage ok interrupt!\n"));
 857                 _rtl_pci_tx_isr(hw, MGNT_QUEUE);
 858         }
 859
 860         if (inta & rtlpriv->cfg->maps[RTL_IMR_HIGHDOK]) {
 861                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 862                          ("HIGH_QUEUE ok interrupt!\n"));
 863                 _rtl_pci_tx_isr(hw, HIGH_QUEUE);
 864         }
 865
 866         if (inta & rtlpriv->cfg->maps[RTL_IMR_BKDOK]) {
 867                 rtlpriv->link_info.num_tx_inperiod++;
 868
 869                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 870                          ("BK Tx OK interrupt!\n"));
 871                 _rtl_pci_tx_isr(hw, BK_QUEUE);
 872         }
 873
 874         if (inta & rtlpriv->cfg->maps[RTL_IMR_BEDOK]) {
 875                 rtlpriv->link_info.num_tx_inperiod++;
 876
 877                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 878                          ("BE TX OK interrupt!\n"));
 879                 _rtl_pci_tx_isr(hw, BE_QUEUE);
 880         }
 881
 882         if (inta & rtlpriv->cfg->maps[RTL_IMR_VIDOK]) {
 883                 rtlpriv->link_info.num_tx_inperiod++;
 884
 885                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 886                          ("VI TX OK interrupt!\n"));
 887                 _rtl_pci_tx_isr(hw, VI_QUEUE);
 888         }
 889
 890         if (inta & rtlpriv->cfg->maps[RTL_IMR_VODOK]) {
 891                 rtlpriv->link_info.num_tx_inperiod++;
 892
 893                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 894                          ("Vo TX OK interrupt!\n"));
 895                 _rtl_pci_tx_isr(hw, VO_QUEUE);
 896         }
 897
 898         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) {
 899                 if (inta & rtlpriv->cfg->maps[RTL_IMR_COMDOK]) {
 900                         rtlpriv->link_info.num_tx_inperiod++;
 901
 902                         RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 903                                         ("CMD TX OK interrupt!\n"));
 904                         _rtl_pci_tx_isr(hw, TXCMD_QUEUE);
 905                 }
 906         }
 907
 908         /*<2> Rx related */
 909         if (inta & rtlpriv->cfg->maps[RTL_IMR_ROK]) {
 910                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("Rx ok interrupt!\n"));
 911                 _rtl_pci_rx_interrupt(hw);
 912         }
 913
 914         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RDU])) {
 915                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 916                          ("rx descriptor unavailable!\n"));
 917                 _rtl_pci_rx_interrupt(hw);
 918         }
 919
 920         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RXFOVW])) {
 921                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("rx overflow !\n"));
 922                 _rtl_pci_rx_interrupt(hw);
 923         }
 924
 925         if (rtlpriv->rtlhal.earlymode_enable)
 926                 tasklet_schedule(&rtlpriv->works.irq_tasklet);
 927
 928         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
 929         return IRQ_HANDLED;
 930
 931 done:
 932         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
 933         return IRQ_HANDLED;
 934 }
 935
 936 static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw)
 937 {
 938         _rtl_pci_tx_chk_waitq(hw);
 939 }
 940
 941 static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw)
 942 {
 943         struct rtl_priv *rtlpriv = rtl_priv(hw);
 944         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 945         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 946         struct rtl8192_tx_ring *ring = NULL;
 947         struct ieee80211_hdr *hdr = NULL;
 948         struct ieee80211_tx_info *info = NULL;
 949         struct sk_buff *pskb = NULL;
 950         struct rtl_tx_desc *pdesc = NULL;
 951         struct rtl_tcb_desc tcb_desc;
 952         u8 temp_one = 1;
 953
 954         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
 955         ring = &rtlpci->tx_ring[BEACON_QUEUE];
 956         pskb = __skb_dequeue(&ring->queue);
 957         if (pskb)
 958                 kfree_skb(pskb);
 959
 960         /*NB: the beacon data buffer must be 32-bit aligned. */
 961         pskb = ieee80211_beacon_get(hw, mac->vif);
 962         if (pskb == NULL)
 963                 return;
 964         hdr = rtl_get_hdr(pskb);
 965         info = IEEE80211_SKB_CB(pskb);
 966         pdesc = &ring->desc[0];
 967         rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *) pdesc,
 968                 info, pskb, BEACON_QUEUE, &tcb_desc);
 969
 970         __skb_queue_tail(&ring->queue, pskb);
 971
 972         rtlpriv->cfg->ops->set_desc((u8 *) pdesc, true, HW_DESC_OWN,
 973                                     (u8 *)&temp_one);
 974
 975         return;
 976 }
 977
 978 static void _rtl_pci_init_trx_var(struct ieee80211_hw *hw)
 979 {
 980         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 981         u8 i;
 982
 983         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
 984                 rtlpci->txringcount[i] = RT_TXDESC_NUM;
 985
 986         /*
 987          *we just alloc 2 desc for beacon queue,
 988          *because we just need first desc in hw beacon.
 989          */
 990         rtlpci->txringcount[BEACON_QUEUE] = 2;
 991
 992         /*
 993          *BE queue need more descriptor for performance
 994          *consideration or, No more tx desc will happen,
 995          *and may cause mac80211 mem leakage.
 996          */
 997         rtlpci->txringcount[BE_QUEUE] = RT_TXDESC_NUM_BE_QUEUE;
 998
 999         rtlpci->rxbuffersize = 9100;    /*2048/1024; */
1000         rtlpci->rxringcount = RTL_PCI_MAX_RX_COUNT;     /*64; */
1001 }
1002
1003 static void _rtl_pci_init_struct(struct ieee80211_hw *hw,
1004                 struct pci_dev *pdev)
1005 {
1006         struct rtl_priv *rtlpriv = rtl_priv(hw);
1007         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
1008         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1009         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1010
1011         rtlpci->up_first_time = true;
1012         rtlpci->being_init_adapter = false;
1013
1014         rtlhal->hw = hw;
1015         rtlpci->pdev = pdev;
1016
1017         /*Tx/Rx related var */
1018         _rtl_pci_init_trx_var(hw);
1019
1020         /*IBSS*/ mac->beacon_interval = 100;
1021
1022         /*AMPDU*/
1023         mac->min_space_cfg = 0;
1024         mac->max_mss_density = 0;
1025         /*set sane AMPDU defaults */
1026         mac->current_ampdu_density = 7;
1027         mac->current_ampdu_factor = 3;
1028
1029         /*QOS*/
1030         rtlpci->acm_method = eAcmWay2_SW;
1031
1032         /*task */
1033         tasklet_init(&rtlpriv->works.irq_tasklet,
1034                      (void (*)(unsigned long))_rtl_pci_irq_tasklet,
1035                      (unsigned long)hw);
1036         tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet,
1037                      (void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet,
1038                      (unsigned long)hw);
1039 }
1040
1041 static int _rtl_pci_init_tx_ring(struct ieee80211_hw *hw,
1042                                  unsigned int prio, unsigned int entries)
1043 {
1044         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1045         struct rtl_priv *rtlpriv = rtl_priv(hw);
1046         struct rtl_tx_desc *ring;
1047         dma_addr_t dma;
1048         u32 nextdescaddress;
1049         int i;
1050
1051         ring = pci_alloc_consistent(rtlpci->pdev,
1052                                     sizeof(*ring) * entries, &dma);
1053
1054         if (!ring || (unsigned long)ring & 0xFF) {
1055                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1056                          ("Cannot allocate TX ring (prio = %d)\n", prio));
1057                 return -ENOMEM;
1058         }
1059
1060         memset(ring, 0, sizeof(*ring) * entries);
1061         rtlpci->tx_ring[prio].desc = ring;
1062         rtlpci->tx_ring[prio].dma = dma;
1063         rtlpci->tx_ring[prio].idx = 0;
1064         rtlpci->tx_ring[prio].entries = entries;
1065         skb_queue_head_init(&rtlpci->tx_ring[prio].queue);
1066
1067         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1068                  ("queue:%d, ring_addr:%p\n", prio, ring));
1069
1070         for (i = 0; i < entries; i++) {
1071                 nextdescaddress = (u32) dma +
1072                                               ((i + 1) % entries) *
1073                                               sizeof(*ring);
1074
1075                 rtlpriv->cfg->ops->set_desc((u8 *)&(ring[i]),
1076                                             true, HW_DESC_TX_NEXTDESC_ADDR,
1077                                             (u8 *)&nextdescaddress);
1078         }
1079
1080         return 0;
1081 }
1082
1083 static int _rtl_pci_init_rx_ring(struct ieee80211_hw *hw)
1084 {
1085         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1086         struct rtl_priv *rtlpriv = rtl_priv(hw);
1087         struct rtl_rx_desc *entry = NULL;
1088         int i, rx_queue_idx;
1089         u8 tmp_one = 1;
1090
1091         /*
1092          *rx_queue_idx 0:RX_MPDU_QUEUE
1093          *rx_queue_idx 1:RX_CMD_QUEUE
1094          */
1095         for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1096              rx_queue_idx++) {
1097                 rtlpci->rx_ring[rx_queue_idx].desc =
1098                     pci_alloc_consistent(rtlpci->pdev,
1099                                          sizeof(*rtlpci->rx_ring[rx_queue_idx].
1100                                                 desc) * rtlpci->rxringcount,
1101                                          &rtlpci->rx_ring[rx_queue_idx].dma);
1102
1103                 if (!rtlpci->rx_ring[rx_queue_idx].desc ||
1104                     (unsigned long)rtlpci->rx_ring[rx_queue_idx].desc & 0xFF) {
1105                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1106                                  ("Cannot allocate RX ring\n"));
1107                         return -ENOMEM;
1108                 }
1109
1110                 memset(rtlpci->rx_ring[rx_queue_idx].desc, 0,
1111                        sizeof(*rtlpci->rx_ring[rx_queue_idx].desc) *
1112                        rtlpci->rxringcount);
1113
1114                 rtlpci->rx_ring[rx_queue_idx].idx = 0;
1115
1116                 /* If amsdu_8k is disabled, set buffersize to 4096. This
1117                  * change will reduce memory fragmentation.
1118                  */
1119                 if (rtlpci->rxbuffersize > 4096 &&
1120                     rtlpriv->rtlhal.disable_amsdu_8k)
1121                         rtlpci->rxbuffersize = 4096;
1122
1123                 for (i = 0; i < rtlpci->rxringcount; i++) {
1124                         struct sk_buff *skb =
1125                             dev_alloc_skb(rtlpci->rxbuffersize);
1126                         u32 bufferaddress;
1127                         if (!skb)
1128                                 return 0;
1129                         entry = &rtlpci->rx_ring[rx_queue_idx].desc[i];
1130
1131                         /*skb->dev = dev; */
1132
1133                         rtlpci->rx_ring[rx_queue_idx].rx_buf[i] = skb;
1134
1135                         /*
1136                          *just set skb->cb to mapping addr
1137                          *for pci_unmap_single use
1138                          */
1139                         *((dma_addr_t *) skb->cb) =
1140                             pci_map_single(rtlpci->pdev, skb_tail_pointer(skb),
1141                                            rtlpci->rxbuffersize,
1142                                            PCI_DMA_FROMDEVICE);
1143
1144                         bufferaddress = (*((dma_addr_t *)skb->cb));
1145                         rtlpriv->cfg->ops->set_desc((u8 *)entry, false,
1146                                                     HW_DESC_RXBUFF_ADDR,
1147                                                     (u8 *)&bufferaddress);
1148                         rtlpriv->cfg->ops->set_desc((u8 *)entry, false,
1149                                                     HW_DESC_RXPKT_LEN,
1150                                                     (u8 *)&rtlpci->
1151                                                     rxbuffersize);
1152                         rtlpriv->cfg->ops->set_desc((u8 *) entry, false,
1153                                                     HW_DESC_RXOWN,
1154                                                     (u8 *)&tmp_one);
1155                 }
1156
1157                 rtlpriv->cfg->ops->set_desc((u8 *) entry, false,
1158                                             HW_DESC_RXERO, (u8 *)&tmp_one);
1159         }
1160         return 0;
1161 }
1162
1163 static void _rtl_pci_free_tx_ring(struct ieee80211_hw *hw,
1164                 unsigned int prio)
1165 {
1166         struct rtl_priv *rtlpriv = rtl_priv(hw);
1167         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1168         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio];
1169
1170         while (skb_queue_len(&ring->queue)) {
1171                 struct rtl_tx_desc *entry = &ring->desc[ring->idx];
1172                 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1173
1174                 pci_unmap_single(rtlpci->pdev,
1175                                  rtlpriv->cfg->
1176                                              ops->get_desc((u8 *) entry, true,
1177                                                    HW_DESC_TXBUFF_ADDR),
1178                                  skb->len, PCI_DMA_TODEVICE);
1179                 kfree_skb(skb);
1180                 ring->idx = (ring->idx + 1) % ring->entries;
1181         }
1182
1183         pci_free_consistent(rtlpci->pdev,
1184                             sizeof(*ring->desc) * ring->entries,
1185                             ring->desc, ring->dma);
1186         ring->desc = NULL;
1187 }
1188
1189 static void _rtl_pci_free_rx_ring(struct rtl_pci *rtlpci)
1190 {
1191         int i, rx_queue_idx;
1192
1193         /*rx_queue_idx 0:RX_MPDU_QUEUE */
1194         /*rx_queue_idx 1:RX_CMD_QUEUE */
1195         for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1196              rx_queue_idx++) {
1197                 for (i = 0; i < rtlpci->rxringcount; i++) {
1198                         struct sk_buff *skb =
1199                             rtlpci->rx_ring[rx_queue_idx].rx_buf[i];
1200                         if (!skb)
1201                                 continue;
1202
1203                         pci_unmap_single(rtlpci->pdev,
1204                                          *((dma_addr_t *) skb->cb),
1205                                          rtlpci->rxbuffersize,
1206                                          PCI_DMA_FROMDEVICE);
1207                         kfree_skb(skb);
1208                 }
1209
1210                 pci_free_consistent(rtlpci->pdev,
1211                                     sizeof(*rtlpci->rx_ring[rx_queue_idx].
1212                                            desc) * rtlpci->rxringcount,
1213                                     rtlpci->rx_ring[rx_queue_idx].desc,
1214                                     rtlpci->rx_ring[rx_queue_idx].dma);
1215                 rtlpci->rx_ring[rx_queue_idx].desc = NULL;
1216         }
1217 }
1218
1219 static int _rtl_pci_init_trx_ring(struct ieee80211_hw *hw)
1220 {
1221         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1222         int ret;
1223         int i;
1224
1225         ret = _rtl_pci_init_rx_ring(hw);
1226         if (ret)
1227                 return ret;
1228
1229         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) {
1230                 ret = _rtl_pci_init_tx_ring(hw, i,
1231                                  rtlpci->txringcount[i]);
1232                 if (ret)
1233                         goto err_free_rings;
1234         }
1235
1236         return 0;
1237
1238 err_free_rings:
1239         _rtl_pci_free_rx_ring(rtlpci);
1240
1241         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
1242                 if (rtlpci->tx_ring[i].desc)
1243                         _rtl_pci_free_tx_ring(hw, i);
1244
1245         return 1;
1246 }
1247
1248 static int _rtl_pci_deinit_trx_ring(struct ieee80211_hw *hw)
1249 {
1250         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1251         u32 i;
1252
1253         /*free rx rings */
1254         _rtl_pci_free_rx_ring(rtlpci);
1255
1256         /*free tx rings */
1257         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
1258                 _rtl_pci_free_tx_ring(hw, i);
1259
1260         return 0;
1261 }
1262
1263 int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw)
1264 {
1265         struct rtl_priv *rtlpriv = rtl_priv(hw);
1266         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1267         int i, rx_queue_idx;
1268         unsigned long flags;
1269         u8 tmp_one = 1;
1270
1271         /*rx_queue_idx 0:RX_MPDU_QUEUE */
1272         /*rx_queue_idx 1:RX_CMD_QUEUE */
1273         for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1274              rx_queue_idx++) {
1275                 /*
1276                  *force the rx_ring[RX_MPDU_QUEUE/
1277                  *RX_CMD_QUEUE].idx to the first one
1278                  */
1279                 if (rtlpci->rx_ring[rx_queue_idx].desc) {
1280                         struct rtl_rx_desc *entry = NULL;
1281
1282                         for (i = 0; i < rtlpci->rxringcount; i++) {
1283                                 entry = &rtlpci->rx_ring[rx_queue_idx].desc[i];
1284                                 rtlpriv->cfg->ops->set_desc((u8 *) entry,
1285                                                             false,
1286                                                             HW_DESC_RXOWN,
1287                                                             (u8 *)&tmp_one);
1288                         }
1289                         rtlpci->rx_ring[rx_queue_idx].idx = 0;
1290                 }
1291         }
1292
1293         /*
1294          *after reset, release previous pending packet,
1295          *and force the  tx idx to the first one
1296          */
1297         spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
1298         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) {
1299                 if (rtlpci->tx_ring[i].desc) {
1300                         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[i];
1301
1302                         while (skb_queue_len(&ring->queue)) {
1303                                 struct rtl_tx_desc *entry =
1304                                     &ring->desc[ring->idx];
1305                                 struct sk_buff *skb =
1306                                     __skb_dequeue(&ring->queue);
1307
1308                                 pci_unmap_single(rtlpci->pdev,
1309                                                  rtlpriv->cfg->ops->
1310                                                          get_desc((u8 *)
1311                                                          entry,
1312                                                          true,
1313                                                          HW_DESC_TXBUFF_ADDR),
1314                                                  skb->len, PCI_DMA_TODEVICE);
1315                                 kfree_skb(skb);
1316                                 ring->idx = (ring->idx + 1) % ring->entries;
1317                         }
1318                         ring->idx = 0;
1319                 }
1320         }
1321
1322         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1323
1324         return 0;
1325 }
1326
1327 static bool rtl_pci_tx_chk_waitq_insert(struct ieee80211_hw *hw,
1328                                         struct sk_buff *skb)
1329 {
1330         struct rtl_priv *rtlpriv = rtl_priv(hw);
1331         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1332         struct ieee80211_sta *sta = info->control.sta;
1333         struct rtl_sta_info *sta_entry = NULL;
1334         u8 tid = rtl_get_tid(skb);
1335
1336         if (!sta)
1337                 return false;
1338         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1339
1340         if (!rtlpriv->rtlhal.earlymode_enable)
1341                 return false;
1342         if (sta_entry->tids[tid].agg.agg_state != RTL_AGG_OPERATIONAL)
1343                 return false;
1344         if (_rtl_mac_to_hwqueue(hw, skb) > VO_QUEUE)
1345                 return false;
1346         if (tid > 7)
1347                 return false;
1348
1349         /* maybe every tid should be checked */
1350         if (!rtlpriv->link_info.higher_busytxtraffic[tid])
1351                 return false;
1352
1353         spin_lock_bh(&rtlpriv->locks.waitq_lock);
1354         skb_queue_tail(&rtlpriv->mac80211.skb_waitq[tid], skb);
1355         spin_unlock_bh(&rtlpriv->locks.waitq_lock);
1356
1357         return true;
1358 }
1359
1360 static int rtl_pci_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
1361                 struct rtl_tcb_desc *ptcb_desc)
1362 {
1363         struct rtl_priv *rtlpriv = rtl_priv(hw);
1364         struct rtl_sta_info *sta_entry = NULL;
1365         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1366         struct ieee80211_sta *sta = info->control.sta;
1367         struct rtl8192_tx_ring *ring;
1368         struct rtl_tx_desc *pdesc;
1369         u8 idx;
1370         u8 hw_queue = _rtl_mac_to_hwqueue(hw, skb);
1371         unsigned long flags;
1372         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1373         __le16 fc = rtl_get_fc(skb);
1374         u8 *pda_addr = hdr->addr1;
1375         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1376         /*ssn */
1377         u8 tid = 0;
1378         u16 seq_number = 0;
1379         u8 own;
1380         u8 temp_one = 1;
1381
1382         if (ieee80211_is_auth(fc)) {
1383                 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, ("MAC80211_LINKING\n"));
1384                 rtl_ips_nic_on(hw);
1385         }
1386
1387         if (rtlpriv->psc.sw_ps_enabled) {
1388                 if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) &&
1389                         !ieee80211_has_pm(fc))
1390                         hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1391         }
1392
1393         rtl_action_proc(hw, skb, true);
1394
1395         if (is_multicast_ether_addr(pda_addr))
1396                 rtlpriv->stats.txbytesmulticast += skb->len;
1397         else if (is_broadcast_ether_addr(pda_addr))
1398                 rtlpriv->stats.txbytesbroadcast += skb->len;
1399         else
1400                 rtlpriv->stats.txbytesunicast += skb->len;
1401
1402         spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
1403         ring = &rtlpci->tx_ring[hw_queue];
1404         if (hw_queue != BEACON_QUEUE)
1405                 idx = (ring->idx + skb_queue_len(&ring->queue)) %
1406                                 ring->entries;
1407         else
1408                 idx = 0;
1409
1410         pdesc = &ring->desc[idx];
1411         own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc,
1412                         true, HW_DESC_OWN);
1413
1414         if ((own == 1) && (hw_queue != BEACON_QUEUE)) {
1415                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1416                          ("No more TX desc@%d, ring->idx = %d,"
1417                           "idx = %d, skb_queue_len = 0x%d\n",
1418                           hw_queue, ring->idx, idx,
1419                           skb_queue_len(&ring->queue)));
1420
1421                 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1422                 return skb->len;
1423         }
1424
1425         if (ieee80211_is_data_qos(fc)) {
1426                 tid = rtl_get_tid(skb);
1427                 if (sta) {
1428                         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1429                         seq_number = (le16_to_cpu(hdr->seq_ctrl) &
1430                                       IEEE80211_SCTL_SEQ) >> 4;
1431                         seq_number += 1;
1432
1433                         if (!ieee80211_has_morefrags(hdr->frame_control))
1434                                 sta_entry->tids[tid].seq_number = seq_number;
1435                 }
1436         }
1437
1438         if (ieee80211_is_data(fc))
1439                 rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX);
1440
1441         rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc,
1442                         info, skb, hw_queue, ptcb_desc);
1443
1444         __skb_queue_tail(&ring->queue, skb);
1445
1446         rtlpriv->cfg->ops->set_desc((u8 *)pdesc, true,
1447                                     HW_DESC_OWN, (u8 *)&temp_one);
1448
1449
1450         if ((ring->entries - skb_queue_len(&ring->queue)) < 2 &&
1451             hw_queue != BEACON_QUEUE) {
1452
1453                 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
1454                          ("less desc left, stop skb_queue@%d, "
1455                           "ring->idx = %d,"
1456                           "idx = %d, skb_queue_len = 0x%d\n",
1457                           hw_queue, ring->idx, idx,
1458                           skb_queue_len(&ring->queue)));
1459
1460                 ieee80211_stop_queue(hw, skb_get_queue_mapping(skb));
1461         }
1462
1463         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1464
1465         rtlpriv->cfg->ops->tx_polling(hw, hw_queue);
1466
1467         return 0;
1468 }
1469
1470 static void rtl_pci_flush(struct ieee80211_hw *hw, bool drop)
1471 {
1472         struct rtl_priv *rtlpriv = rtl_priv(hw);
1473         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1474         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1475         u16 i = 0;
1476         int queue_id;
1477         struct rtl8192_tx_ring *ring;
1478
1479         for (queue_id = RTL_PCI_MAX_TX_QUEUE_COUNT - 1; queue_id >= 0;) {
1480                 u32 queue_len;
1481                 ring = &pcipriv->dev.tx_ring[queue_id];
1482                 queue_len = skb_queue_len(&ring->queue);
1483                 if (queue_len == 0 || queue_id == BEACON_QUEUE ||
1484                         queue_id == TXCMD_QUEUE) {
1485                         queue_id--;
1486                         continue;
1487                 } else {
1488                         msleep(20);
1489                         i++;
1490                 }
1491
1492                 /* we just wait 1s for all queues */
1493                 if (rtlpriv->psc.rfpwr_state == ERFOFF ||
1494                         is_hal_stop(rtlhal) || i >= 200)
1495                         return;
1496         }
1497 }
1498
1499 static void rtl_pci_deinit(struct ieee80211_hw *hw)
1500 {
1501         struct rtl_priv *rtlpriv = rtl_priv(hw);
1502         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1503
1504         _rtl_pci_deinit_trx_ring(hw);
1505
1506         synchronize_irq(rtlpci->pdev->irq);
1507         tasklet_kill(&rtlpriv->works.irq_tasklet);
1508
1509         flush_workqueue(rtlpriv->works.rtl_wq);
1510         destroy_workqueue(rtlpriv->works.rtl_wq);
1511
1512 }
1513
1514 static int rtl_pci_init(struct ieee80211_hw *hw, struct pci_dev *pdev)
1515 {
1516         struct rtl_priv *rtlpriv = rtl_priv(hw);
1517         int err;
1518
1519         _rtl_pci_init_struct(hw, pdev);
1520
1521         err = _rtl_pci_init_trx_ring(hw);
1522         if (err) {
1523                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1524                          ("tx ring initialization failed"));
1525                 return err;
1526         }
1527
1528         return 1;
1529 }
1530
1531 static int rtl_pci_start(struct ieee80211_hw *hw)
1532 {
1533         struct rtl_priv *rtlpriv = rtl_priv(hw);
1534         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1535         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1536         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1537
1538         int err;
1539
1540         rtl_pci_reset_trx_ring(hw);
1541
1542         rtlpci->driver_is_goingto_unload = false;
1543         err = rtlpriv->cfg->ops->hw_init(hw);
1544         if (err) {
1545                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1546                          ("Failed to config hardware!\n"));
1547                 return err;
1548         }
1549
1550         rtlpriv->cfg->ops->enable_interrupt(hw);
1551         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("enable_interrupt OK\n"));
1552
1553         rtl_init_rx_config(hw);
1554
1555         /*should after adapter start and interrupt enable. */
1556         set_hal_start(rtlhal);
1557
1558         RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
1559
1560         rtlpci->up_first_time = false;
1561
1562         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("OK\n"));
1563         return 0;
1564 }
1565
1566 static void rtl_pci_stop(struct ieee80211_hw *hw)
1567 {
1568         struct rtl_priv *rtlpriv = rtl_priv(hw);
1569         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1570         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1571         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1572         unsigned long flags;
1573         u8 RFInProgressTimeOut = 0;
1574
1575         /*
1576          *should before disable interrrupt&adapter
1577          *and will do it immediately.
1578          */
1579         set_hal_stop(rtlhal);
1580
1581         rtlpriv->cfg->ops->disable_interrupt(hw);
1582
1583         spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1584         while (ppsc->rfchange_inprogress) {
1585                 spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1586                 if (RFInProgressTimeOut > 100) {
1587                         spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1588                         break;
1589                 }
1590                 mdelay(1);
1591                 RFInProgressTimeOut++;
1592                 spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1593         }
1594         ppsc->rfchange_inprogress = true;
1595         spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1596
1597         rtlpci->driver_is_goingto_unload = true;
1598         rtlpriv->cfg->ops->hw_disable(hw);
1599         rtlpriv->cfg->ops->led_control(hw, LED_CTL_POWER_OFF);
1600
1601         spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1602         ppsc->rfchange_inprogress = false;
1603         spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1604
1605         rtl_pci_enable_aspm(hw);
1606 }
1607
1608 static bool _rtl_pci_find_adapter(struct pci_dev *pdev,
1609                 struct ieee80211_hw *hw)
1610 {
1611         struct rtl_priv *rtlpriv = rtl_priv(hw);
1612         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1613         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1614         struct pci_dev *bridge_pdev = pdev->bus->self;
1615         u16 venderid;
1616         u16 deviceid;
1617         u8 revisionid;
1618         u16 irqline;
1619         u8 tmp;
1620
1621         pcipriv->ndis_adapter.pcibridge_vendor = PCI_BRIDGE_VENDOR_UNKNOWN;
1622         venderid = pdev->vendor;
1623         deviceid = pdev->device;
1624         pci_read_config_byte(pdev, 0x8, &revisionid);
1625         pci_read_config_word(pdev, 0x3C, &irqline);
1626
1627         if (deviceid == RTL_PCI_8192_DID ||
1628             deviceid == RTL_PCI_0044_DID ||
1629             deviceid == RTL_PCI_0047_DID ||
1630             deviceid == RTL_PCI_8192SE_DID ||
1631             deviceid == RTL_PCI_8174_DID ||
1632             deviceid == RTL_PCI_8173_DID ||
1633             deviceid == RTL_PCI_8172_DID ||
1634             deviceid == RTL_PCI_8171_DID) {
1635                 switch (revisionid) {
1636                 case RTL_PCI_REVISION_ID_8192PCIE:
1637                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1638                                  ("8192 PCI-E is found - "
1639                                   "vid/did=%x/%x\n", venderid, deviceid));
1640                         rtlhal->hw_type = HARDWARE_TYPE_RTL8192E;
1641                         break;
1642                 case RTL_PCI_REVISION_ID_8192SE:
1643                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1644                                  ("8192SE is found - "
1645                                   "vid/did=%x/%x\n", venderid, deviceid));
1646                         rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE;
1647                         break;
1648                 default:
1649                         RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1650                                  ("Err: Unknown device - "
1651                                   "vid/did=%x/%x\n", venderid, deviceid));
1652                         rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE;
1653                         break;
1654
1655                 }
1656         } else if (deviceid == RTL_PCI_8192CET_DID ||
1657                    deviceid == RTL_PCI_8192CE_DID ||
1658                    deviceid == RTL_PCI_8191CE_DID ||
1659                    deviceid == RTL_PCI_8188CE_DID) {
1660                 rtlhal->hw_type = HARDWARE_TYPE_RTL8192CE;
1661                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1662                          ("8192C PCI-E is found - "
1663                           "vid/did=%x/%x\n", venderid, deviceid));
1664         } else if (deviceid == RTL_PCI_8192DE_DID ||
1665                    deviceid == RTL_PCI_8192DE_DID2) {
1666                 rtlhal->hw_type = HARDWARE_TYPE_RTL8192DE;
1667                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1668                          ("8192D PCI-E is found - "
1669                           "vid/did=%x/%x\n", venderid, deviceid));
1670         } else {
1671                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1672                          ("Err: Unknown device -"
1673                           " vid/did=%x/%x\n", venderid, deviceid));
1674
1675                 rtlhal->hw_type = RTL_DEFAULT_HARDWARE_TYPE;
1676         }
1677
1678         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192DE) {
1679                 if (revisionid == 0 || revisionid == 1) {
1680                         if (revisionid == 0) {
1681                                 RT_TRACE(rtlpriv, COMP_INIT,
1682                                          DBG_LOUD, ("Find 92DE MAC0.\n"));
1683                                 rtlhal->interfaceindex = 0;
1684                         } else if (revisionid == 1) {
1685                                 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1686                                         ("Find 92DE MAC1.\n"));
1687                                 rtlhal->interfaceindex = 1;
1688                         }
1689                 } else {
1690                         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1691                                 ("Unknown device - "
1692                                 "VendorID/DeviceID=%x/%x, Revision=%x\n",
1693                                 venderid, deviceid, revisionid));
1694                         rtlhal->interfaceindex = 0;
1695                 }
1696         }
1697         /*find bus info */
1698         pcipriv->ndis_adapter.busnumber = pdev->bus->number;
1699         pcipriv->ndis_adapter.devnumber = PCI_SLOT(pdev->devfn);
1700         pcipriv->ndis_adapter.funcnumber = PCI_FUNC(pdev->devfn);
1701
1702         /*find bridge info */
1703         pcipriv->ndis_adapter.pcibridge_vendorid = bridge_pdev->vendor;
1704         for (tmp = 0; tmp < PCI_BRIDGE_VENDOR_MAX; tmp++) {
1705                 if (bridge_pdev->vendor == pcibridge_vendors[tmp]) {
1706                         pcipriv->ndis_adapter.pcibridge_vendor = tmp;
1707                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1708                                  ("Pci Bridge Vendor is found index: %d\n",
1709                                   tmp));
1710                         break;
1711                 }
1712         }
1713
1714         if (pcipriv->ndis_adapter.pcibridge_vendor !=
1715                 PCI_BRIDGE_VENDOR_UNKNOWN) {
1716                 pcipriv->ndis_adapter.pcibridge_busnum =
1717                     bridge_pdev->bus->number;
1718                 pcipriv->ndis_adapter.pcibridge_devnum =
1719                     PCI_SLOT(bridge_pdev->devfn);
1720                 pcipriv->ndis_adapter.pcibridge_funcnum =
1721                     PCI_FUNC(bridge_pdev->devfn);
1722                 pcipriv->ndis_adapter.pcicfg_addrport =
1723                     (pcipriv->ndis_adapter.pcibridge_busnum << 16) |
1724                     (pcipriv->ndis_adapter.pcibridge_devnum << 11) |
1725                     (pcipriv->ndis_adapter.pcibridge_funcnum << 8) | (1 << 31);
1726                 pcipriv->ndis_adapter.pcibridge_pciehdr_offset =
1727                     pci_pcie_cap(bridge_pdev);
1728                 pcipriv->ndis_adapter.num4bytes =
1729                     (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10) / 4;
1730
1731                 rtl_pci_get_linkcontrol_field(hw);
1732
1733                 if (pcipriv->ndis_adapter.pcibridge_vendor ==
1734                     PCI_BRIDGE_VENDOR_AMD) {
1735                         pcipriv->ndis_adapter.amd_l1_patch =
1736                             rtl_pci_get_amd_l1_patch(hw);
1737                 }
1738         }
1739
1740         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1741                  ("pcidev busnumber:devnumber:funcnumber:"
1742                   "vendor:link_ctl %d:%d:%d:%x:%x\n",
1743                   pcipriv->ndis_adapter.busnumber,
1744                   pcipriv->ndis_adapter.devnumber,
1745                   pcipriv->ndis_adapter.funcnumber,
1746                   pdev->vendor, pcipriv->ndis_adapter.linkctrl_reg));
1747
1748         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1749                  ("pci_bridge busnumber:devnumber:funcnumber:vendor:"
1750                   "pcie_cap:link_ctl_reg:amd %d:%d:%d:%x:%x:%x:%x\n",
1751                   pcipriv->ndis_adapter.pcibridge_busnum,
1752                   pcipriv->ndis_adapter.pcibridge_devnum,
1753                   pcipriv->ndis_adapter.pcibridge_funcnum,
1754                   pcibridge_vendors[pcipriv->ndis_adapter.pcibridge_vendor],
1755                   pcipriv->ndis_adapter.pcibridge_pciehdr_offset,
1756                   pcipriv->ndis_adapter.pcibridge_linkctrlreg,
1757                   pcipriv->ndis_adapter.amd_l1_patch));
1758
1759         rtl_pci_parse_configuration(pdev, hw);
1760
1761         return true;
1762 }
1763
1764 int __devinit rtl_pci_probe(struct pci_dev *pdev,
1765                             const struct pci_device_id *id)
1766 {
1767         struct ieee80211_hw *hw = NULL;
1768
1769         struct rtl_priv *rtlpriv = NULL;
1770         struct rtl_pci_priv *pcipriv = NULL;
1771         struct rtl_pci *rtlpci;
1772         unsigned long pmem_start, pmem_len, pmem_flags;
1773         int err;
1774
1775         err = pci_enable_device(pdev);
1776         if (err) {
1777                 RT_ASSERT(false,
1778                           ("%s : Cannot enable new PCI device\n",
1779                            pci_name(pdev)));
1780                 return err;
1781         }
1782
1783         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
1784                 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
1785                         RT_ASSERT(false, ("Unable to obtain 32bit DMA "
1786                                           "for consistent allocations\n"));
1787                         pci_disable_device(pdev);
1788                         return -ENOMEM;
1789                 }
1790         }
1791
1792         pci_set_master(pdev);
1793
1794         hw = ieee80211_alloc_hw(sizeof(struct rtl_pci_priv) +
1795                                 sizeof(struct rtl_priv), &rtl_ops);
1796         if (!hw) {
1797                 RT_ASSERT(false,
1798                           ("%s : ieee80211 alloc failed\n", pci_name(pdev)));
1799                 err = -ENOMEM;
1800                 goto fail1;
1801         }
1802
1803         SET_IEEE80211_DEV(hw, &pdev->dev);
1804         pci_set_drvdata(pdev, hw);
1805
1806         rtlpriv = hw->priv;
1807         pcipriv = (void *)rtlpriv->priv;
1808         pcipriv->dev.pdev = pdev;
1809
1810         /* init cfg & intf_ops */
1811         rtlpriv->rtlhal.interface = INTF_PCI;
1812         rtlpriv->cfg = (struct rtl_hal_cfg *)(id->driver_data);
1813         rtlpriv->intf_ops = &rtl_pci_ops;
1814
1815         /*
1816          *init dbgp flags before all
1817          *other functions, because we will
1818          *use it in other funtions like
1819          *RT_TRACE/RT_PRINT/RTL_PRINT_DATA
1820          *you can not use these macro
1821          *before this
1822          */
1823         rtl_dbgp_flag_init(hw);
1824
1825         /* MEM map */
1826         err = pci_request_regions(pdev, KBUILD_MODNAME);
1827         if (err) {
1828                 RT_ASSERT(false, ("Can't obtain PCI resources\n"));
1829                 return err;
1830         }
1831
1832         pmem_start = pci_resource_start(pdev, rtlpriv->cfg->bar_id);
1833         pmem_len = pci_resource_len(pdev, rtlpriv->cfg->bar_id);
1834         pmem_flags = pci_resource_flags(pdev, rtlpriv->cfg->bar_id);
1835
1836         /*shared mem start */
1837         rtlpriv->io.pci_mem_start =
1838                         (unsigned long)pci_iomap(pdev,
1839                         rtlpriv->cfg->bar_id, pmem_len);
1840         if (rtlpriv->io.pci_mem_start == 0) {
1841                 RT_ASSERT(false, ("Can't map PCI mem\n"));
1842                 goto fail2;
1843         }
1844
1845         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1846                  ("mem mapped space: start: 0x%08lx len:%08lx "
1847                   "flags:%08lx, after map:0x%08lx\n",
1848                   pmem_start, pmem_len, pmem_flags,
1849                   rtlpriv->io.pci_mem_start));
1850
1851         /* Disable Clk Request */
1852         pci_write_config_byte(pdev, 0x81, 0);
1853         /* leave D3 mode */
1854         pci_write_config_byte(pdev, 0x44, 0);
1855         pci_write_config_byte(pdev, 0x04, 0x06);
1856         pci_write_config_byte(pdev, 0x04, 0x07);
1857
1858         /* find adapter */
1859         _rtl_pci_find_adapter(pdev, hw);
1860
1861         /* Init IO handler */
1862         _rtl_pci_io_handler_init(&pdev->dev, hw);
1863
1864         /*like read eeprom and so on */
1865         rtlpriv->cfg->ops->read_eeprom_info(hw);
1866
1867         if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
1868                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1869                          ("Can't init_sw_vars.\n"));
1870                 goto fail3;
1871         }
1872
1873         rtlpriv->cfg->ops->init_sw_leds(hw);
1874
1875         /*aspm */
1876         rtl_pci_init_aspm(hw);
1877
1878         /* Init mac80211 sw */
1879         err = rtl_init_core(hw);
1880         if (err) {
1881                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1882                          ("Can't allocate sw for mac80211.\n"));
1883                 goto fail3;
1884         }
1885
1886         /* Init PCI sw */
1887         err = !rtl_pci_init(hw, pdev);
1888         if (err) {
1889                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1890                          ("Failed to init PCI.\n"));
1891                 goto fail3;
1892         }
1893
1894         err = ieee80211_register_hw(hw);
1895         if (err) {
1896                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1897                          ("Can't register mac80211 hw.\n"));
1898                 goto fail3;
1899         } else {
1900                 rtlpriv->mac80211.mac80211_registered = 1;
1901         }
1902
1903         err = sysfs_create_group(&pdev->dev.kobj, &rtl_attribute_group);
1904         if (err) {
1905                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1906                          ("failed to create sysfs device attributes\n"));
1907                 goto fail3;
1908         }
1909
1910         /*init rfkill */
1911         rtl_init_rfkill(hw);
1912
1913         rtlpci = rtl_pcidev(pcipriv);
1914         err = request_irq(rtlpci->pdev->irq, &_rtl_pci_interrupt,
1915                           IRQF_SHARED, KBUILD_MODNAME, hw);
1916         if (err) {
1917                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1918                          ("%s: failed to register IRQ handler\n",
1919                           wiphy_name(hw->wiphy)));
1920                 goto fail3;
1921         } else {
1922                 rtlpci->irq_alloc = 1;
1923         }
1924
1925         set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
1926         return 0;
1927
1928 fail3:
1929         pci_set_drvdata(pdev, NULL);
1930         rtl_deinit_core(hw);
1931         _rtl_pci_io_handler_release(hw);
1932         ieee80211_free_hw(hw);
1933
1934         if (rtlpriv->io.pci_mem_start != 0)
1935                 pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
1936
1937 fail2:
1938         pci_release_regions(pdev);
1939
1940 fail1:
1941
1942         pci_disable_device(pdev);
1943
1944         return -ENODEV;
1945
1946 }
1947 EXPORT_SYMBOL(rtl_pci_probe);
1948
1949 void rtl_pci_disconnect(struct pci_dev *pdev)
1950 {
1951         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
1952         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1953         struct rtl_priv *rtlpriv = rtl_priv(hw);
1954         struct rtl_pci *rtlpci = rtl_pcidev(pcipriv);
1955         struct rtl_mac *rtlmac = rtl_mac(rtlpriv);
1956
1957         clear_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
1958
1959         sysfs_remove_group(&pdev->dev.kobj, &rtl_attribute_group);
1960
1961         /*ieee80211_unregister_hw will call ops_stop */
1962         if (rtlmac->mac80211_registered == 1) {
1963                 ieee80211_unregister_hw(hw);
1964                 rtlmac->mac80211_registered = 0;
1965         } else {
1966                 rtl_deinit_deferred_work(hw);
1967                 rtlpriv->intf_ops->adapter_stop(hw);
1968         }
1969
1970         /*deinit rfkill */
1971         rtl_deinit_rfkill(hw);
1972
1973         rtl_pci_deinit(hw);
1974         rtl_deinit_core(hw);
1975         _rtl_pci_io_handler_release(hw);
1976         rtlpriv->cfg->ops->deinit_sw_vars(hw);
1977
1978         if (rtlpci->irq_alloc) {
1979                 free_irq(rtlpci->pdev->irq, hw);
1980                 rtlpci->irq_alloc = 0;
1981         }
1982
1983         if (rtlpriv->io.pci_mem_start != 0) {
1984                 pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
1985                 pci_release_regions(pdev);
1986         }
1987
1988         pci_disable_device(pdev);
1989
1990         rtl_pci_disable_aspm(hw);
1991
1992         pci_set_drvdata(pdev, NULL);
1993
1994         ieee80211_free_hw(hw);
1995 }
1996 EXPORT_SYMBOL(rtl_pci_disconnect);
1997
1998 /***************************************
1999 kernel pci power state define:
2000 PCI_D0         ((pci_power_t __force) 0)
2001 PCI_D1         ((pci_power_t __force) 1)
2002 PCI_D2         ((pci_power_t __force) 2)
2003 PCI_D3hot      ((pci_power_t __force) 3)
2004 PCI_D3cold     ((pci_power_t __force) 4)
2005 PCI_UNKNOWN    ((pci_power_t __force) 5)
2006
2007 This function is called when system
2008 goes into suspend state mac80211 will
2009 call rtl_mac_stop() from the mac80211
2010 suspend function first, So there is
2011 no need to call hw_disable here.
2012 ****************************************/
2013 int rtl_pci_suspend(struct pci_dev *pdev, pm_message_t state)
2014 {
2015         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
2016         struct rtl_priv *rtlpriv = rtl_priv(hw);
2017
2018         rtlpriv->cfg->ops->hw_suspend(hw);
2019         rtl_deinit_rfkill(hw);
2020
2021         pci_save_state(pdev);
2022         pci_disable_device(pdev);
2023         pci_set_power_state(pdev, PCI_D3hot);
2024         return 0;
2025 }
2026 EXPORT_SYMBOL(rtl_pci_suspend);
2027
2028 int rtl_pci_resume(struct pci_dev *pdev)
2029 {
2030         int ret;
2031         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
2032         struct rtl_priv *rtlpriv = rtl_priv(hw);
2033
2034         pci_set_power_state(pdev, PCI_D0);
2035         ret = pci_enable_device(pdev);
2036         if (ret) {
2037                 RT_ASSERT(false, ("ERR: <======\n"));
2038                 return ret;
2039         }
2040
2041         pci_restore_state(pdev);
2042
2043         rtlpriv->cfg->ops->hw_resume(hw);
2044         rtl_init_rfkill(hw);
2045         return 0;
2046 }
2047 EXPORT_SYMBOL(rtl_pci_resume);
2048
2049 struct rtl_intf_ops rtl_pci_ops = {
2050         .read_efuse_byte = read_efuse_byte,
2051         .adapter_start = rtl_pci_start,
2052         .adapter_stop = rtl_pci_stop,
2053         .adapter_tx = rtl_pci_tx,
2054         .flush = rtl_pci_flush,
2055         .reset_trx_ring = rtl_pci_reset_trx_ring,
2056         .waitq_insert = rtl_pci_tx_chk_waitq_insert,
2057
2058         .disable_aspm = rtl_pci_disable_aspm,
2059         .enable_aspm = rtl_pci_enable_aspm,
2060 };