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         PCI_VENDOR_ID_INTEL,
  39         PCI_VENDOR_ID_ATI,
  40         PCI_VENDOR_ID_AMD,
  41         PCI_VENDOR_ID_SI
  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_pcie_cap(pdev);
 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_delay = 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                 tasklet_schedule(&rtlpriv->works.ips_leave_tasklet);
 626         }
 627 }
 628
 629 static void _rtl_receive_one(struct ieee80211_hw *hw, struct sk_buff *skb,
 630                              struct ieee80211_rx_status rx_status)
 631 {
 632         struct rtl_priv *rtlpriv = rtl_priv(hw);
 633         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
 634         __le16 fc = rtl_get_fc(skb);
 635         bool unicast = false;
 636         struct sk_buff *uskb = NULL;
 637         u8 *pdata;
 638
 639
 640         memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
 641
 642         if (is_broadcast_ether_addr(hdr->addr1)) {
 643                 ;/*TODO*/
 644         } else if (is_multicast_ether_addr(hdr->addr1)) {
 645                 ;/*TODO*/
 646         } else {
 647                 unicast = true;
 648                 rtlpriv->stats.rxbytesunicast += skb->len;
 649         }
 650
 651         rtl_is_special_data(hw, skb, false);
 652
 653         if (ieee80211_is_data(fc)) {
 654                 rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
 655
 656                 if (unicast)
 657                         rtlpriv->link_info.num_rx_inperiod++;
 658         }
 659
 660         /* for sw lps */
 661         rtl_swlps_beacon(hw, (void *)skb->data, skb->len);
 662         rtl_recognize_peer(hw, (void *)skb->data, skb->len);
 663         if ((rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP) &&
 664             (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G) &&
 665              (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)))
 666                 return;
 667
 668         if (unlikely(!rtl_action_proc(hw, skb, false)))
 669                 return;
 670
 671         uskb = dev_alloc_skb(skb->len + 128);
 672         memcpy(IEEE80211_SKB_RXCB(uskb), &rx_status, sizeof(rx_status));
 673         pdata = (u8 *)skb_put(uskb, skb->len);
 674         memcpy(pdata, skb->data, skb->len);
 675
 676         ieee80211_rx_irqsafe(hw, uskb);
 677 }
 678
 679 static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
 680 {
 681         struct rtl_priv *rtlpriv = rtl_priv(hw);
 682         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 683         int rx_queue_idx = RTL_PCI_RX_MPDU_QUEUE;
 684
 685         struct ieee80211_rx_status rx_status = { 0 };
 686         unsigned int count = rtlpci->rxringcount;
 687         u8 own;
 688         u8 tmp_one;
 689         u32 bufferaddress;
 690
 691         struct rtl_stats stats = {
 692                 .signal = 0,
 693                 .noise = -98,
 694                 .rate = 0,
 695         };
 696         int index = rtlpci->rx_ring[rx_queue_idx].idx;
 697
 698         /*RX NORMAL PKT */
 699         while (count--) {
 700                 /*rx descriptor */
 701                 struct rtl_rx_desc *pdesc = &rtlpci->rx_ring[rx_queue_idx].desc[
 702                                 index];
 703                 /*rx pkt */
 704                 struct sk_buff *skb = rtlpci->rx_ring[rx_queue_idx].rx_buf[
 705                                 index];
 706                 struct sk_buff *new_skb = NULL;
 707
 708                 own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc,
 709                                                        false, HW_DESC_OWN);
 710
 711                 /*wait data to be filled by hardware */
 712                 if (own)
 713                         break;
 714
 715                 rtlpriv->cfg->ops->query_rx_desc(hw, &stats,
 716                                                  &rx_status,
 717                                                  (u8 *) pdesc, skb);
 718
 719                 if (stats.crc || stats.hwerror)
 720                         goto done;
 721
 722                 new_skb = dev_alloc_skb(rtlpci->rxbuffersize);
 723                 if (unlikely(!new_skb)) {
 724                         RT_TRACE(rtlpriv, (COMP_INTR | COMP_RECV),
 725                                  DBG_DMESG,
 726                                  ("can't alloc skb for rx\n"));
 727                         goto done;
 728                 }
 729
 730                 pci_unmap_single(rtlpci->pdev,
 731                                  *((dma_addr_t *) skb->cb),
 732                                  rtlpci->rxbuffersize,
 733                                  PCI_DMA_FROMDEVICE);
 734
 735                 skb_put(skb, rtlpriv->cfg->ops->get_desc((u8 *) pdesc, false,
 736                         HW_DESC_RXPKT_LEN));
 737                 skb_reserve(skb, stats.rx_drvinfo_size + stats.rx_bufshift);
 738
 739                 /*
 740                  * NOTICE This can not be use for mac80211,
 741                  * this is done in mac80211 code,
 742                  * if you done here sec DHCP will fail
 743                  * skb_trim(skb, skb->len - 4);
 744                  */
 745
 746                 _rtl_receive_one(hw, skb, rx_status);
 747
 748                 if (((rtlpriv->link_info.num_rx_inperiod +
 749                         rtlpriv->link_info.num_tx_inperiod) > 8) ||
 750                         (rtlpriv->link_info.num_rx_inperiod > 2)) {
 751                         tasklet_schedule(&rtlpriv->works.ips_leave_tasklet);
 752                 }
 753
 754                 dev_kfree_skb_any(skb);
 755                 skb = new_skb;
 756
 757                 rtlpci->rx_ring[rx_queue_idx].rx_buf[index] = skb;
 758                 *((dma_addr_t *) skb->cb) =
 759                             pci_map_single(rtlpci->pdev, skb_tail_pointer(skb),
 760                                            rtlpci->rxbuffersize,
 761                                            PCI_DMA_FROMDEVICE);
 762
 763 done:
 764                 bufferaddress = (*((dma_addr_t *)skb->cb));
 765                 tmp_one = 1;
 766                 rtlpriv->cfg->ops->set_desc((u8 *) pdesc, false,
 767                                             HW_DESC_RXBUFF_ADDR,
 768                                             (u8 *)&bufferaddress);
 769                 rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false,
 770                                             HW_DESC_RXPKT_LEN,
 771                                             (u8 *)&rtlpci->rxbuffersize);
 772
 773                 if (index == rtlpci->rxringcount - 1)
 774                         rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false,
 775                                                     HW_DESC_RXERO,
 776                                                     (u8 *)&tmp_one);
 777
 778                 rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXOWN,
 779                                             (u8 *)&tmp_one);
 780
 781                 index = (index + 1) % rtlpci->rxringcount;
 782         }
 783
 784         rtlpci->rx_ring[rx_queue_idx].idx = index;
 785 }
 786
 787 static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id)
 788 {
 789         struct ieee80211_hw *hw = dev_id;
 790         struct rtl_priv *rtlpriv = rtl_priv(hw);
 791         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 792         unsigned long flags;
 793         u32 inta = 0;
 794         u32 intb = 0;
 795
 796         spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
 797
 798         /*read ISR: 4/8bytes */
 799         rtlpriv->cfg->ops->interrupt_recognized(hw, &inta, &intb);
 800
 801         /*Shared IRQ or HW disappared */
 802         if (!inta || inta == 0xffff)
 803                 goto done;
 804
 805         /*<1> beacon related */
 806         if (inta & rtlpriv->cfg->maps[RTL_IMR_TBDOK]) {
 807                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 808                          ("beacon ok interrupt!\n"));
 809         }
 810
 811         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TBDER])) {
 812                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 813                          ("beacon err interrupt!\n"));
 814         }
 815
 816         if (inta & rtlpriv->cfg->maps[RTL_IMR_BDOK]) {
 817                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 818                          ("beacon interrupt!\n"));
 819         }
 820
 821         if (inta & rtlpriv->cfg->maps[RTL_IMR_BcnInt]) {
 822                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 823                          ("prepare beacon for interrupt!\n"));
 824                 tasklet_schedule(&rtlpriv->works.irq_prepare_bcn_tasklet);
 825         }
 826
 827         /*<3> Tx related */
 828         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TXFOVW]))
 829                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("IMR_TXFOVW!\n"));
 830
 831         if (inta & rtlpriv->cfg->maps[RTL_IMR_MGNTDOK]) {
 832                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 833                          ("Manage ok interrupt!\n"));
 834                 _rtl_pci_tx_isr(hw, MGNT_QUEUE);
 835         }
 836
 837         if (inta & rtlpriv->cfg->maps[RTL_IMR_HIGHDOK]) {
 838                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 839                          ("HIGH_QUEUE ok interrupt!\n"));
 840                 _rtl_pci_tx_isr(hw, HIGH_QUEUE);
 841         }
 842
 843         if (inta & rtlpriv->cfg->maps[RTL_IMR_BKDOK]) {
 844                 rtlpriv->link_info.num_tx_inperiod++;
 845
 846                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 847                          ("BK Tx OK interrupt!\n"));
 848                 _rtl_pci_tx_isr(hw, BK_QUEUE);
 849         }
 850
 851         if (inta & rtlpriv->cfg->maps[RTL_IMR_BEDOK]) {
 852                 rtlpriv->link_info.num_tx_inperiod++;
 853
 854                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 855                          ("BE TX OK interrupt!\n"));
 856                 _rtl_pci_tx_isr(hw, BE_QUEUE);
 857         }
 858
 859         if (inta & rtlpriv->cfg->maps[RTL_IMR_VIDOK]) {
 860                 rtlpriv->link_info.num_tx_inperiod++;
 861
 862                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 863                          ("VI TX OK interrupt!\n"));
 864                 _rtl_pci_tx_isr(hw, VI_QUEUE);
 865         }
 866
 867         if (inta & rtlpriv->cfg->maps[RTL_IMR_VODOK]) {
 868                 rtlpriv->link_info.num_tx_inperiod++;
 869
 870                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 871                          ("Vo TX OK interrupt!\n"));
 872                 _rtl_pci_tx_isr(hw, VO_QUEUE);
 873         }
 874
 875         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) {
 876                 if (inta & rtlpriv->cfg->maps[RTL_IMR_COMDOK]) {
 877                         rtlpriv->link_info.num_tx_inperiod++;
 878
 879                         RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
 880                                         ("CMD TX OK interrupt!\n"));
 881                         _rtl_pci_tx_isr(hw, TXCMD_QUEUE);
 882                 }
 883         }
 884
 885         /*<2> Rx related */
 886         if (inta & rtlpriv->cfg->maps[RTL_IMR_ROK]) {
 887                 RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("Rx ok interrupt!\n"));
 888                 _rtl_pci_rx_interrupt(hw);
 889         }
 890
 891         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RDU])) {
 892                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 893                          ("rx descriptor unavailable!\n"));
 894                 _rtl_pci_rx_interrupt(hw);
 895         }
 896
 897         if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RXFOVW])) {
 898                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("rx overflow !\n"));
 899                 _rtl_pci_rx_interrupt(hw);
 900         }
 901
 902         if (rtlpriv->rtlhal.earlymode_enable)
 903                 tasklet_schedule(&rtlpriv->works.irq_tasklet);
 904
 905         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
 906         return IRQ_HANDLED;
 907
 908 done:
 909         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
 910         return IRQ_HANDLED;
 911 }
 912
 913 static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw)
 914 {
 915         _rtl_pci_tx_chk_waitq(hw);
 916 }
 917
 918 static void _rtl_pci_ips_leave_tasklet(struct ieee80211_hw *hw)
 919 {
 920         rtl_lps_leave(hw);
 921 }
 922
 923 static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw)
 924 {
 925         struct rtl_priv *rtlpriv = rtl_priv(hw);
 926         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 927         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 928         struct rtl8192_tx_ring *ring = NULL;
 929         struct ieee80211_hdr *hdr = NULL;
 930         struct ieee80211_tx_info *info = NULL;
 931         struct sk_buff *pskb = NULL;
 932         struct rtl_tx_desc *pdesc = NULL;
 933         struct rtl_tcb_desc tcb_desc;
 934         u8 temp_one = 1;
 935
 936         memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
 937         ring = &rtlpci->tx_ring[BEACON_QUEUE];
 938         pskb = __skb_dequeue(&ring->queue);
 939         if (pskb)
 940                 kfree_skb(pskb);
 941
 942         /*NB: the beacon data buffer must be 32-bit aligned. */
 943         pskb = ieee80211_beacon_get(hw, mac->vif);
 944         if (pskb == NULL)
 945                 return;
 946         hdr = rtl_get_hdr(pskb);
 947         info = IEEE80211_SKB_CB(pskb);
 948         pdesc = &ring->desc[0];
 949         rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *) pdesc,
 950                 info, pskb, BEACON_QUEUE, &tcb_desc);
 951
 952         __skb_queue_tail(&ring->queue, pskb);
 953
 954         rtlpriv->cfg->ops->set_desc((u8 *) pdesc, true, HW_DESC_OWN,
 955                                     (u8 *)&temp_one);
 956
 957         return;
 958 }
 959
 960 static void _rtl_pci_init_trx_var(struct ieee80211_hw *hw)
 961 {
 962         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 963         u8 i;
 964
 965         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
 966                 rtlpci->txringcount[i] = RT_TXDESC_NUM;
 967
 968         /*
 969          *we just alloc 2 desc for beacon queue,
 970          *because we just need first desc in hw beacon.
 971          */
 972         rtlpci->txringcount[BEACON_QUEUE] = 2;
 973
 974         /*
 975          *BE queue need more descriptor for performance
 976          *consideration or, No more tx desc will happen,
 977          *and may cause mac80211 mem leakage.
 978          */
 979         rtlpci->txringcount[BE_QUEUE] = RT_TXDESC_NUM_BE_QUEUE;
 980
 981         rtlpci->rxbuffersize = 9100;    /*2048/1024; */
 982         rtlpci->rxringcount = RTL_PCI_MAX_RX_COUNT;     /*64; */
 983 }
 984
 985 static void _rtl_pci_init_struct(struct ieee80211_hw *hw,
 986                 struct pci_dev *pdev)
 987 {
 988         struct rtl_priv *rtlpriv = rtl_priv(hw);
 989         struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
 990         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
 991         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
 992
 993         rtlpci->up_first_time = true;
 994         rtlpci->being_init_adapter = false;
 995
 996         rtlhal->hw = hw;
 997         rtlpci->pdev = pdev;
 998
 999         /*Tx/Rx related var */
1000         _rtl_pci_init_trx_var(hw);
1001
1002         /*IBSS*/ mac->beacon_interval = 100;
1003
1004         /*AMPDU*/
1005         mac->min_space_cfg = 0;
1006         mac->max_mss_density = 0;
1007         /*set sane AMPDU defaults */
1008         mac->current_ampdu_density = 7;
1009         mac->current_ampdu_factor = 3;
1010
1011         /*QOS*/
1012         rtlpci->acm_method = eAcmWay2_SW;
1013
1014         /*task */
1015         tasklet_init(&rtlpriv->works.irq_tasklet,
1016                      (void (*)(unsigned long))_rtl_pci_irq_tasklet,
1017                      (unsigned long)hw);
1018         tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet,
1019                      (void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet,
1020                      (unsigned long)hw);
1021         tasklet_init(&rtlpriv->works.ips_leave_tasklet,
1022                      (void (*)(unsigned long))_rtl_pci_ips_leave_tasklet,
1023                      (unsigned long)hw);
1024 }
1025
1026 static int _rtl_pci_init_tx_ring(struct ieee80211_hw *hw,
1027                                  unsigned int prio, unsigned int entries)
1028 {
1029         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1030         struct rtl_priv *rtlpriv = rtl_priv(hw);
1031         struct rtl_tx_desc *ring;
1032         dma_addr_t dma;
1033         u32 nextdescaddress;
1034         int i;
1035
1036         ring = pci_alloc_consistent(rtlpci->pdev,
1037                                     sizeof(*ring) * entries, &dma);
1038
1039         if (!ring || (unsigned long)ring & 0xFF) {
1040                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1041                          ("Cannot allocate TX ring (prio = %d)\n", prio));
1042                 return -ENOMEM;
1043         }
1044
1045         memset(ring, 0, sizeof(*ring) * entries);
1046         rtlpci->tx_ring[prio].desc = ring;
1047         rtlpci->tx_ring[prio].dma = dma;
1048         rtlpci->tx_ring[prio].idx = 0;
1049         rtlpci->tx_ring[prio].entries = entries;
1050         skb_queue_head_init(&rtlpci->tx_ring[prio].queue);
1051
1052         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1053                  ("queue:%d, ring_addr:%p\n", prio, ring));
1054
1055         for (i = 0; i < entries; i++) {
1056                 nextdescaddress = (u32) dma +
1057                                               ((i + 1) % entries) *
1058                                               sizeof(*ring);
1059
1060                 rtlpriv->cfg->ops->set_desc((u8 *)&(ring[i]),
1061                                             true, HW_DESC_TX_NEXTDESC_ADDR,
1062                                             (u8 *)&nextdescaddress);
1063         }
1064
1065         return 0;
1066 }
1067
1068 static int _rtl_pci_init_rx_ring(struct ieee80211_hw *hw)
1069 {
1070         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1071         struct rtl_priv *rtlpriv = rtl_priv(hw);
1072         struct rtl_rx_desc *entry = NULL;
1073         int i, rx_queue_idx;
1074         u8 tmp_one = 1;
1075
1076         /*
1077          *rx_queue_idx 0:RX_MPDU_QUEUE
1078          *rx_queue_idx 1:RX_CMD_QUEUE
1079          */
1080         for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1081              rx_queue_idx++) {
1082                 rtlpci->rx_ring[rx_queue_idx].desc =
1083                     pci_alloc_consistent(rtlpci->pdev,
1084                                          sizeof(*rtlpci->rx_ring[rx_queue_idx].
1085                                                 desc) * rtlpci->rxringcount,
1086                                          &rtlpci->rx_ring[rx_queue_idx].dma);
1087
1088                 if (!rtlpci->rx_ring[rx_queue_idx].desc ||
1089                     (unsigned long)rtlpci->rx_ring[rx_queue_idx].desc & 0xFF) {
1090                         RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1091                                  ("Cannot allocate RX ring\n"));
1092                         return -ENOMEM;
1093                 }
1094
1095                 memset(rtlpci->rx_ring[rx_queue_idx].desc, 0,
1096                        sizeof(*rtlpci->rx_ring[rx_queue_idx].desc) *
1097                        rtlpci->rxringcount);
1098
1099                 rtlpci->rx_ring[rx_queue_idx].idx = 0;
1100
1101                 /* If amsdu_8k is disabled, set buffersize to 4096. This
1102                  * change will reduce memory fragmentation.
1103                  */
1104                 if (rtlpci->rxbuffersize > 4096 &&
1105                     rtlpriv->rtlhal.disable_amsdu_8k)
1106                         rtlpci->rxbuffersize = 4096;
1107
1108                 for (i = 0; i < rtlpci->rxringcount; i++) {
1109                         struct sk_buff *skb =
1110                             dev_alloc_skb(rtlpci->rxbuffersize);
1111                         u32 bufferaddress;
1112                         if (!skb)
1113                                 return 0;
1114                         entry = &rtlpci->rx_ring[rx_queue_idx].desc[i];
1115
1116                         /*skb->dev = dev; */
1117
1118                         rtlpci->rx_ring[rx_queue_idx].rx_buf[i] = skb;
1119
1120                         /*
1121                          *just set skb->cb to mapping addr
1122                          *for pci_unmap_single use
1123                          */
1124                         *((dma_addr_t *) skb->cb) =
1125                             pci_map_single(rtlpci->pdev, skb_tail_pointer(skb),
1126                                            rtlpci->rxbuffersize,
1127                                            PCI_DMA_FROMDEVICE);
1128
1129                         bufferaddress = (*((dma_addr_t *)skb->cb));
1130                         rtlpriv->cfg->ops->set_desc((u8 *)entry, false,
1131                                                     HW_DESC_RXBUFF_ADDR,
1132                                                     (u8 *)&bufferaddress);
1133                         rtlpriv->cfg->ops->set_desc((u8 *)entry, false,
1134                                                     HW_DESC_RXPKT_LEN,
1135                                                     (u8 *)&rtlpci->
1136                                                     rxbuffersize);
1137                         rtlpriv->cfg->ops->set_desc((u8 *) entry, false,
1138                                                     HW_DESC_RXOWN,
1139                                                     (u8 *)&tmp_one);
1140                 }
1141
1142                 rtlpriv->cfg->ops->set_desc((u8 *) entry, false,
1143                                             HW_DESC_RXERO, (u8 *)&tmp_one);
1144         }
1145         return 0;
1146 }
1147
1148 static void _rtl_pci_free_tx_ring(struct ieee80211_hw *hw,
1149                 unsigned int prio)
1150 {
1151         struct rtl_priv *rtlpriv = rtl_priv(hw);
1152         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1153         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio];
1154
1155         while (skb_queue_len(&ring->queue)) {
1156                 struct rtl_tx_desc *entry = &ring->desc[ring->idx];
1157                 struct sk_buff *skb = __skb_dequeue(&ring->queue);
1158
1159                 pci_unmap_single(rtlpci->pdev,
1160                                  rtlpriv->cfg->
1161                                              ops->get_desc((u8 *) entry, true,
1162                                                    HW_DESC_TXBUFF_ADDR),
1163                                  skb->len, PCI_DMA_TODEVICE);
1164                 kfree_skb(skb);
1165                 ring->idx = (ring->idx + 1) % ring->entries;
1166         }
1167
1168         pci_free_consistent(rtlpci->pdev,
1169                             sizeof(*ring->desc) * ring->entries,
1170                             ring->desc, ring->dma);
1171         ring->desc = NULL;
1172 }
1173
1174 static void _rtl_pci_free_rx_ring(struct rtl_pci *rtlpci)
1175 {
1176         int i, rx_queue_idx;
1177
1178         /*rx_queue_idx 0:RX_MPDU_QUEUE */
1179         /*rx_queue_idx 1:RX_CMD_QUEUE */
1180         for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1181              rx_queue_idx++) {
1182                 for (i = 0; i < rtlpci->rxringcount; i++) {
1183                         struct sk_buff *skb =
1184                             rtlpci->rx_ring[rx_queue_idx].rx_buf[i];
1185                         if (!skb)
1186                                 continue;
1187
1188                         pci_unmap_single(rtlpci->pdev,
1189                                          *((dma_addr_t *) skb->cb),
1190                                          rtlpci->rxbuffersize,
1191                                          PCI_DMA_FROMDEVICE);
1192                         kfree_skb(skb);
1193                 }
1194
1195                 pci_free_consistent(rtlpci->pdev,
1196                                     sizeof(*rtlpci->rx_ring[rx_queue_idx].
1197                                            desc) * rtlpci->rxringcount,
1198                                     rtlpci->rx_ring[rx_queue_idx].desc,
1199                                     rtlpci->rx_ring[rx_queue_idx].dma);
1200                 rtlpci->rx_ring[rx_queue_idx].desc = NULL;
1201         }
1202 }
1203
1204 static int _rtl_pci_init_trx_ring(struct ieee80211_hw *hw)
1205 {
1206         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1207         int ret;
1208         int i;
1209
1210         ret = _rtl_pci_init_rx_ring(hw);
1211         if (ret)
1212                 return ret;
1213
1214         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) {
1215                 ret = _rtl_pci_init_tx_ring(hw, i,
1216                                  rtlpci->txringcount[i]);
1217                 if (ret)
1218                         goto err_free_rings;
1219         }
1220
1221         return 0;
1222
1223 err_free_rings:
1224         _rtl_pci_free_rx_ring(rtlpci);
1225
1226         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
1227                 if (rtlpci->tx_ring[i].desc)
1228                         _rtl_pci_free_tx_ring(hw, i);
1229
1230         return 1;
1231 }
1232
1233 static int _rtl_pci_deinit_trx_ring(struct ieee80211_hw *hw)
1234 {
1235         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1236         u32 i;
1237
1238         /*free rx rings */
1239         _rtl_pci_free_rx_ring(rtlpci);
1240
1241         /*free tx rings */
1242         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++)
1243                 _rtl_pci_free_tx_ring(hw, i);
1244
1245         return 0;
1246 }
1247
1248 int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw)
1249 {
1250         struct rtl_priv *rtlpriv = rtl_priv(hw);
1251         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1252         int i, rx_queue_idx;
1253         unsigned long flags;
1254         u8 tmp_one = 1;
1255
1256         /*rx_queue_idx 0:RX_MPDU_QUEUE */
1257         /*rx_queue_idx 1:RX_CMD_QUEUE */
1258         for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE;
1259              rx_queue_idx++) {
1260                 /*
1261                  *force the rx_ring[RX_MPDU_QUEUE/
1262                  *RX_CMD_QUEUE].idx to the first one
1263                  */
1264                 if (rtlpci->rx_ring[rx_queue_idx].desc) {
1265                         struct rtl_rx_desc *entry = NULL;
1266
1267                         for (i = 0; i < rtlpci->rxringcount; i++) {
1268                                 entry = &rtlpci->rx_ring[rx_queue_idx].desc[i];
1269                                 rtlpriv->cfg->ops->set_desc((u8 *) entry,
1270                                                             false,
1271                                                             HW_DESC_RXOWN,
1272                                                             (u8 *)&tmp_one);
1273                         }
1274                         rtlpci->rx_ring[rx_queue_idx].idx = 0;
1275                 }
1276         }
1277
1278         /*
1279          *after reset, release previous pending packet,
1280          *and force the  tx idx to the first one
1281          */
1282         spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
1283         for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) {
1284                 if (rtlpci->tx_ring[i].desc) {
1285                         struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[i];
1286
1287                         while (skb_queue_len(&ring->queue)) {
1288                                 struct rtl_tx_desc *entry =
1289                                     &ring->desc[ring->idx];
1290                                 struct sk_buff *skb =
1291                                     __skb_dequeue(&ring->queue);
1292
1293                                 pci_unmap_single(rtlpci->pdev,
1294                                                  rtlpriv->cfg->ops->
1295                                                          get_desc((u8 *)
1296                                                          entry,
1297                                                          true,
1298                                                          HW_DESC_TXBUFF_ADDR),
1299                                                  skb->len, PCI_DMA_TODEVICE);
1300                                 kfree_skb(skb);
1301                                 ring->idx = (ring->idx + 1) % ring->entries;
1302                         }
1303                         ring->idx = 0;
1304                 }
1305         }
1306
1307         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1308
1309         return 0;
1310 }
1311
1312 static bool rtl_pci_tx_chk_waitq_insert(struct ieee80211_hw *hw,
1313                                         struct sk_buff *skb)
1314 {
1315         struct rtl_priv *rtlpriv = rtl_priv(hw);
1316         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1317         struct ieee80211_sta *sta = info->control.sta;
1318         struct rtl_sta_info *sta_entry = NULL;
1319         u8 tid = rtl_get_tid(skb);
1320
1321         if (!sta)
1322                 return false;
1323         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1324
1325         if (!rtlpriv->rtlhal.earlymode_enable)
1326                 return false;
1327         if (sta_entry->tids[tid].agg.agg_state != RTL_AGG_OPERATIONAL)
1328                 return false;
1329         if (_rtl_mac_to_hwqueue(hw, skb) > VO_QUEUE)
1330                 return false;
1331         if (tid > 7)
1332                 return false;
1333
1334         /* maybe every tid should be checked */
1335         if (!rtlpriv->link_info.higher_busytxtraffic[tid])
1336                 return false;
1337
1338         spin_lock_bh(&rtlpriv->locks.waitq_lock);
1339         skb_queue_tail(&rtlpriv->mac80211.skb_waitq[tid], skb);
1340         spin_unlock_bh(&rtlpriv->locks.waitq_lock);
1341
1342         return true;
1343 }
1344
1345 static int rtl_pci_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
1346                 struct rtl_tcb_desc *ptcb_desc)
1347 {
1348         struct rtl_priv *rtlpriv = rtl_priv(hw);
1349         struct rtl_sta_info *sta_entry = NULL;
1350         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1351         struct ieee80211_sta *sta = info->control.sta;
1352         struct rtl8192_tx_ring *ring;
1353         struct rtl_tx_desc *pdesc;
1354         u8 idx;
1355         u8 hw_queue = _rtl_mac_to_hwqueue(hw, skb);
1356         unsigned long flags;
1357         struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
1358         __le16 fc = rtl_get_fc(skb);
1359         u8 *pda_addr = hdr->addr1;
1360         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1361         /*ssn */
1362         u8 tid = 0;
1363         u16 seq_number = 0;
1364         u8 own;
1365         u8 temp_one = 1;
1366
1367         if (ieee80211_is_auth(fc)) {
1368                 RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, ("MAC80211_LINKING\n"));
1369                 rtl_ips_nic_on(hw);
1370         }
1371
1372         if (rtlpriv->psc.sw_ps_enabled) {
1373                 if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) &&
1374                         !ieee80211_has_pm(fc))
1375                         hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
1376         }
1377
1378         rtl_action_proc(hw, skb, true);
1379
1380         if (is_multicast_ether_addr(pda_addr))
1381                 rtlpriv->stats.txbytesmulticast += skb->len;
1382         else if (is_broadcast_ether_addr(pda_addr))
1383                 rtlpriv->stats.txbytesbroadcast += skb->len;
1384         else
1385                 rtlpriv->stats.txbytesunicast += skb->len;
1386
1387         spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
1388         ring = &rtlpci->tx_ring[hw_queue];
1389         if (hw_queue != BEACON_QUEUE)
1390                 idx = (ring->idx + skb_queue_len(&ring->queue)) %
1391                                 ring->entries;
1392         else
1393                 idx = 0;
1394
1395         pdesc = &ring->desc[idx];
1396         own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc,
1397                         true, HW_DESC_OWN);
1398
1399         if ((own == 1) && (hw_queue != BEACON_QUEUE)) {
1400                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1401                          ("No more TX desc@%d, ring->idx = %d,"
1402                           "idx = %d, skb_queue_len = 0x%d\n",
1403                           hw_queue, ring->idx, idx,
1404                           skb_queue_len(&ring->queue)));
1405
1406                 spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1407                 return skb->len;
1408         }
1409
1410         if (ieee80211_is_data_qos(fc)) {
1411                 tid = rtl_get_tid(skb);
1412                 if (sta) {
1413                         sta_entry = (struct rtl_sta_info *)sta->drv_priv;
1414                         seq_number = (le16_to_cpu(hdr->seq_ctrl) &
1415                                       IEEE80211_SCTL_SEQ) >> 4;
1416                         seq_number += 1;
1417
1418                         if (!ieee80211_has_morefrags(hdr->frame_control))
1419                                 sta_entry->tids[tid].seq_number = seq_number;
1420                 }
1421         }
1422
1423         if (ieee80211_is_data(fc))
1424                 rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX);
1425
1426         rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc,
1427                         info, skb, hw_queue, ptcb_desc);
1428
1429         __skb_queue_tail(&ring->queue, skb);
1430
1431         rtlpriv->cfg->ops->set_desc((u8 *)pdesc, true,
1432                                     HW_DESC_OWN, (u8 *)&temp_one);
1433
1434
1435         if ((ring->entries - skb_queue_len(&ring->queue)) < 2 &&
1436             hw_queue != BEACON_QUEUE) {
1437
1438                 RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
1439                          ("less desc left, stop skb_queue@%d, "
1440                           "ring->idx = %d,"
1441                           "idx = %d, skb_queue_len = 0x%d\n",
1442                           hw_queue, ring->idx, idx,
1443                           skb_queue_len(&ring->queue)));
1444
1445                 ieee80211_stop_queue(hw, skb_get_queue_mapping(skb));
1446         }
1447
1448         spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
1449
1450         rtlpriv->cfg->ops->tx_polling(hw, hw_queue);
1451
1452         return 0;
1453 }
1454
1455 static void rtl_pci_flush(struct ieee80211_hw *hw, bool drop)
1456 {
1457         struct rtl_priv *rtlpriv = rtl_priv(hw);
1458         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1459         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1460         u16 i = 0;
1461         int queue_id;
1462         struct rtl8192_tx_ring *ring;
1463
1464         for (queue_id = RTL_PCI_MAX_TX_QUEUE_COUNT - 1; queue_id >= 0;) {
1465                 u32 queue_len;
1466                 ring = &pcipriv->dev.tx_ring[queue_id];
1467                 queue_len = skb_queue_len(&ring->queue);
1468                 if (queue_len == 0 || queue_id == BEACON_QUEUE ||
1469                         queue_id == TXCMD_QUEUE) {
1470                         queue_id--;
1471                         continue;
1472                 } else {
1473                         msleep(20);
1474                         i++;
1475                 }
1476
1477                 /* we just wait 1s for all queues */
1478                 if (rtlpriv->psc.rfpwr_state == ERFOFF ||
1479                         is_hal_stop(rtlhal) || i >= 200)
1480                         return;
1481         }
1482 }
1483
1484 static void rtl_pci_deinit(struct ieee80211_hw *hw)
1485 {
1486         struct rtl_priv *rtlpriv = rtl_priv(hw);
1487         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1488
1489         _rtl_pci_deinit_trx_ring(hw);
1490
1491         synchronize_irq(rtlpci->pdev->irq);
1492         tasklet_kill(&rtlpriv->works.irq_tasklet);
1493         tasklet_kill(&rtlpriv->works.ips_leave_tasklet);
1494
1495         flush_workqueue(rtlpriv->works.rtl_wq);
1496         destroy_workqueue(rtlpriv->works.rtl_wq);
1497
1498 }
1499
1500 static int rtl_pci_init(struct ieee80211_hw *hw, struct pci_dev *pdev)
1501 {
1502         struct rtl_priv *rtlpriv = rtl_priv(hw);
1503         int err;
1504
1505         _rtl_pci_init_struct(hw, pdev);
1506
1507         err = _rtl_pci_init_trx_ring(hw);
1508         if (err) {
1509                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1510                          ("tx ring initialization failed"));
1511                 return err;
1512         }
1513
1514         return 1;
1515 }
1516
1517 static int rtl_pci_start(struct ieee80211_hw *hw)
1518 {
1519         struct rtl_priv *rtlpriv = rtl_priv(hw);
1520         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1521         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1522         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1523
1524         int err;
1525
1526         rtl_pci_reset_trx_ring(hw);
1527
1528         rtlpci->driver_is_goingto_unload = false;
1529         err = rtlpriv->cfg->ops->hw_init(hw);
1530         if (err) {
1531                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1532                          ("Failed to config hardware!\n"));
1533                 return err;
1534         }
1535
1536         rtlpriv->cfg->ops->enable_interrupt(hw);
1537         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("enable_interrupt OK\n"));
1538
1539         rtl_init_rx_config(hw);
1540
1541         /*should after adapter start and interrupt enable. */
1542         set_hal_start(rtlhal);
1543
1544         RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
1545
1546         rtlpci->up_first_time = false;
1547
1548         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("OK\n"));
1549         return 0;
1550 }
1551
1552 static void rtl_pci_stop(struct ieee80211_hw *hw)
1553 {
1554         struct rtl_priv *rtlpriv = rtl_priv(hw);
1555         struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
1556         struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
1557         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1558         unsigned long flags;
1559         u8 RFInProgressTimeOut = 0;
1560
1561         /*
1562          *should before disable interrrupt&adapter
1563          *and will do it immediately.
1564          */
1565         set_hal_stop(rtlhal);
1566
1567         rtlpriv->cfg->ops->disable_interrupt(hw);
1568         tasklet_kill(&rtlpriv->works.ips_leave_tasklet);
1569
1570         spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1571         while (ppsc->rfchange_inprogress) {
1572                 spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1573                 if (RFInProgressTimeOut > 100) {
1574                         spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1575                         break;
1576                 }
1577                 mdelay(1);
1578                 RFInProgressTimeOut++;
1579                 spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1580         }
1581         ppsc->rfchange_inprogress = true;
1582         spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1583
1584         rtlpci->driver_is_goingto_unload = true;
1585         rtlpriv->cfg->ops->hw_disable(hw);
1586         rtlpriv->cfg->ops->led_control(hw, LED_CTL_POWER_OFF);
1587
1588         spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags);
1589         ppsc->rfchange_inprogress = false;
1590         spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags);
1591
1592         rtl_pci_enable_aspm(hw);
1593 }
1594
1595 static bool _rtl_pci_find_adapter(struct pci_dev *pdev,
1596                 struct ieee80211_hw *hw)
1597 {
1598         struct rtl_priv *rtlpriv = rtl_priv(hw);
1599         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1600         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1601         struct pci_dev *bridge_pdev = pdev->bus->self;
1602         u16 venderid;
1603         u16 deviceid;
1604         u8 revisionid;
1605         u16 irqline;
1606         u8 tmp;
1607
1608         pcipriv->ndis_adapter.pcibridge_vendor = PCI_BRIDGE_VENDOR_UNKNOWN;
1609         venderid = pdev->vendor;
1610         deviceid = pdev->device;
1611         pci_read_config_byte(pdev, 0x8, &revisionid);
1612         pci_read_config_word(pdev, 0x3C, &irqline);
1613
1614         /* PCI ID 0x10ec:0x8192 occurs for both RTL8192E, which uses
1615          * r8192e_pci, and RTL8192SE, which uses this driver. If the
1616          * revision ID is RTL_PCI_REVISION_ID_8192PCIE (0x01), then
1617          * the correct driver is r8192e_pci, thus this routine should
1618          * return false.
1619          */
1620         if (deviceid == RTL_PCI_8192SE_DID &&
1621             revisionid == RTL_PCI_REVISION_ID_8192PCIE)
1622                 return false;
1623
1624         if (deviceid == RTL_PCI_8192_DID ||
1625             deviceid == RTL_PCI_0044_DID ||
1626             deviceid == RTL_PCI_0047_DID ||
1627             deviceid == RTL_PCI_8192SE_DID ||
1628             deviceid == RTL_PCI_8174_DID ||
1629             deviceid == RTL_PCI_8173_DID ||
1630             deviceid == RTL_PCI_8172_DID ||
1631             deviceid == RTL_PCI_8171_DID) {
1632                 switch (revisionid) {
1633                 case RTL_PCI_REVISION_ID_8192PCIE:
1634                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1635                                  ("8192 PCI-E is found - "
1636                                   "vid/did=%x/%x\n", venderid, deviceid));
1637                         rtlhal->hw_type = HARDWARE_TYPE_RTL8192E;
1638                         break;
1639                 case RTL_PCI_REVISION_ID_8192SE:
1640                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1641                                  ("8192SE is found - "
1642                                   "vid/did=%x/%x\n", venderid, deviceid));
1643                         rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE;
1644                         break;
1645                 default:
1646                         RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1647                                  ("Err: Unknown device - "
1648                                   "vid/did=%x/%x\n", venderid, deviceid));
1649                         rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE;
1650                         break;
1651
1652                 }
1653         } else if (deviceid == RTL_PCI_8192CET_DID ||
1654                    deviceid == RTL_PCI_8192CE_DID ||
1655                    deviceid == RTL_PCI_8191CE_DID ||
1656                    deviceid == RTL_PCI_8188CE_DID) {
1657                 rtlhal->hw_type = HARDWARE_TYPE_RTL8192CE;
1658                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1659                          ("8192C PCI-E is found - "
1660                           "vid/did=%x/%x\n", venderid, deviceid));
1661         } else if (deviceid == RTL_PCI_8192DE_DID ||
1662                    deviceid == RTL_PCI_8192DE_DID2) {
1663                 rtlhal->hw_type = HARDWARE_TYPE_RTL8192DE;
1664                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1665                          ("8192D PCI-E is found - "
1666                           "vid/did=%x/%x\n", venderid, deviceid));
1667         } else {
1668                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
1669                          ("Err: Unknown device -"
1670                           " vid/did=%x/%x\n", venderid, deviceid));
1671
1672                 rtlhal->hw_type = RTL_DEFAULT_HARDWARE_TYPE;
1673         }
1674
1675         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192DE) {
1676                 if (revisionid == 0 || revisionid == 1) {
1677                         if (revisionid == 0) {
1678                                 RT_TRACE(rtlpriv, COMP_INIT,
1679                                          DBG_LOUD, ("Find 92DE MAC0.\n"));
1680                                 rtlhal->interfaceindex = 0;
1681                         } else if (revisionid == 1) {
1682                                 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1683                                         ("Find 92DE MAC1.\n"));
1684                                 rtlhal->interfaceindex = 1;
1685                         }
1686                 } else {
1687                         RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
1688                                 ("Unknown device - "
1689                                 "VendorID/DeviceID=%x/%x, Revision=%x\n",
1690                                 venderid, deviceid, revisionid));
1691                         rtlhal->interfaceindex = 0;
1692                 }
1693         }
1694         /*find bus info */
1695         pcipriv->ndis_adapter.busnumber = pdev->bus->number;
1696         pcipriv->ndis_adapter.devnumber = PCI_SLOT(pdev->devfn);
1697         pcipriv->ndis_adapter.funcnumber = PCI_FUNC(pdev->devfn);
1698
1699         /*find bridge info */
1700         pcipriv->ndis_adapter.pcibridge_vendorid = bridge_pdev->vendor;
1701         for (tmp = 0; tmp < PCI_BRIDGE_VENDOR_MAX; tmp++) {
1702                 if (bridge_pdev->vendor == pcibridge_vendors[tmp]) {
1703                         pcipriv->ndis_adapter.pcibridge_vendor = tmp;
1704                         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1705                                  ("Pci Bridge Vendor is found index: %d\n",
1706                                   tmp));
1707                         break;
1708                 }
1709         }
1710
1711         if (pcipriv->ndis_adapter.pcibridge_vendor !=
1712                 PCI_BRIDGE_VENDOR_UNKNOWN) {
1713                 pcipriv->ndis_adapter.pcibridge_busnum =
1714                     bridge_pdev->bus->number;
1715                 pcipriv->ndis_adapter.pcibridge_devnum =
1716                     PCI_SLOT(bridge_pdev->devfn);
1717                 pcipriv->ndis_adapter.pcibridge_funcnum =
1718                     PCI_FUNC(bridge_pdev->devfn);
1719                 pcipriv->ndis_adapter.pcicfg_addrport =
1720                     (pcipriv->ndis_adapter.pcibridge_busnum << 16) |
1721                     (pcipriv->ndis_adapter.pcibridge_devnum << 11) |
1722                     (pcipriv->ndis_adapter.pcibridge_funcnum << 8) | (1 << 31);
1723                 pcipriv->ndis_adapter.pcibridge_pciehdr_offset =
1724                     pci_pcie_cap(bridge_pdev);
1725                 pcipriv->ndis_adapter.num4bytes =
1726                     (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10) / 4;
1727
1728                 rtl_pci_get_linkcontrol_field(hw);
1729
1730                 if (pcipriv->ndis_adapter.pcibridge_vendor ==
1731                     PCI_BRIDGE_VENDOR_AMD) {
1732                         pcipriv->ndis_adapter.amd_l1_patch =
1733                             rtl_pci_get_amd_l1_patch(hw);
1734                 }
1735         }
1736
1737         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1738                  ("pcidev busnumber:devnumber:funcnumber:"
1739                   "vendor:link_ctl %d:%d:%d:%x:%x\n",
1740                   pcipriv->ndis_adapter.busnumber,
1741                   pcipriv->ndis_adapter.devnumber,
1742                   pcipriv->ndis_adapter.funcnumber,
1743                   pdev->vendor, pcipriv->ndis_adapter.linkctrl_reg));
1744
1745         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1746                  ("pci_bridge busnumber:devnumber:funcnumber:vendor:"
1747                   "pcie_cap:link_ctl_reg:amd %d:%d:%d:%x:%x:%x:%x\n",
1748                   pcipriv->ndis_adapter.pcibridge_busnum,
1749                   pcipriv->ndis_adapter.pcibridge_devnum,
1750                   pcipriv->ndis_adapter.pcibridge_funcnum,
1751                   pcibridge_vendors[pcipriv->ndis_adapter.pcibridge_vendor],
1752                   pcipriv->ndis_adapter.pcibridge_pciehdr_offset,
1753                   pcipriv->ndis_adapter.pcibridge_linkctrlreg,
1754                   pcipriv->ndis_adapter.amd_l1_patch));
1755
1756         rtl_pci_parse_configuration(pdev, hw);
1757
1758         return true;
1759 }
1760
1761 int __devinit rtl_pci_probe(struct pci_dev *pdev,
1762                             const struct pci_device_id *id)
1763 {
1764         struct ieee80211_hw *hw = NULL;
1765
1766         struct rtl_priv *rtlpriv = NULL;
1767         struct rtl_pci_priv *pcipriv = NULL;
1768         struct rtl_pci *rtlpci;
1769         unsigned long pmem_start, pmem_len, pmem_flags;
1770         int err;
1771
1772         err = pci_enable_device(pdev);
1773         if (err) {
1774                 RT_ASSERT(false,
1775                           ("%s : Cannot enable new PCI device\n",
1776                            pci_name(pdev)));
1777                 return err;
1778         }
1779
1780         if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
1781                 if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
1782                         RT_ASSERT(false, ("Unable to obtain 32bit DMA "
1783                                           "for consistent allocations\n"));
1784                         pci_disable_device(pdev);
1785                         return -ENOMEM;
1786                 }
1787         }
1788
1789         pci_set_master(pdev);
1790
1791         hw = ieee80211_alloc_hw(sizeof(struct rtl_pci_priv) +
1792                                 sizeof(struct rtl_priv), &rtl_ops);
1793         if (!hw) {
1794                 RT_ASSERT(false,
1795                           ("%s : ieee80211 alloc failed\n", pci_name(pdev)));
1796                 err = -ENOMEM;
1797                 goto fail1;
1798         }
1799
1800         SET_IEEE80211_DEV(hw, &pdev->dev);
1801         pci_set_drvdata(pdev, hw);
1802
1803         rtlpriv = hw->priv;
1804         pcipriv = (void *)rtlpriv->priv;
1805         pcipriv->dev.pdev = pdev;
1806
1807         /* init cfg & intf_ops */
1808         rtlpriv->rtlhal.interface = INTF_PCI;
1809         rtlpriv->cfg = (struct rtl_hal_cfg *)(id->driver_data);
1810         rtlpriv->intf_ops = &rtl_pci_ops;
1811
1812         /*
1813          *init dbgp flags before all
1814          *other functions, because we will
1815          *use it in other funtions like
1816          *RT_TRACE/RT_PRINT/RTL_PRINT_DATA
1817          *you can not use these macro
1818          *before this
1819          */
1820         rtl_dbgp_flag_init(hw);
1821
1822         /* MEM map */
1823         err = pci_request_regions(pdev, KBUILD_MODNAME);
1824         if (err) {
1825                 RT_ASSERT(false, ("Can't obtain PCI resources\n"));
1826                 return err;
1827         }
1828
1829         pmem_start = pci_resource_start(pdev, rtlpriv->cfg->bar_id);
1830         pmem_len = pci_resource_len(pdev, rtlpriv->cfg->bar_id);
1831         pmem_flags = pci_resource_flags(pdev, rtlpriv->cfg->bar_id);
1832
1833         /*shared mem start */
1834         rtlpriv->io.pci_mem_start =
1835                         (unsigned long)pci_iomap(pdev,
1836                         rtlpriv->cfg->bar_id, pmem_len);
1837         if (rtlpriv->io.pci_mem_start == 0) {
1838                 RT_ASSERT(false, ("Can't map PCI mem\n"));
1839                 goto fail2;
1840         }
1841
1842         RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1843                  ("mem mapped space: start: 0x%08lx len:%08lx "
1844                   "flags:%08lx, after map:0x%08lx\n",
1845                   pmem_start, pmem_len, pmem_flags,
1846                   rtlpriv->io.pci_mem_start));
1847
1848         /* Disable Clk Request */
1849         pci_write_config_byte(pdev, 0x81, 0);
1850         /* leave D3 mode */
1851         pci_write_config_byte(pdev, 0x44, 0);
1852         pci_write_config_byte(pdev, 0x04, 0x06);
1853         pci_write_config_byte(pdev, 0x04, 0x07);
1854
1855         /* find adapter */
1856         if (!_rtl_pci_find_adapter(pdev, hw))
1857                 goto fail3;
1858
1859         /* Init IO handler */
1860         _rtl_pci_io_handler_init(&pdev->dev, hw);
1861
1862         /*like read eeprom and so on */
1863         rtlpriv->cfg->ops->read_eeprom_info(hw);
1864
1865         if (rtlpriv->cfg->ops->init_sw_vars(hw)) {
1866                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1867                          ("Can't init_sw_vars.\n"));
1868                 goto fail3;
1869         }
1870
1871         rtlpriv->cfg->ops->init_sw_leds(hw);
1872
1873         /*aspm */
1874         rtl_pci_init_aspm(hw);
1875
1876         /* Init mac80211 sw */
1877         err = rtl_init_core(hw);
1878         if (err) {
1879                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1880                          ("Can't allocate sw for mac80211.\n"));
1881                 goto fail3;
1882         }
1883
1884         /* Init PCI sw */
1885         err = !rtl_pci_init(hw, pdev);
1886         if (err) {
1887                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1888                          ("Failed to init PCI.\n"));
1889                 goto fail3;
1890         }
1891
1892         err = ieee80211_register_hw(hw);
1893         if (err) {
1894                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1895                          ("Can't register mac80211 hw.\n"));
1896                 goto fail3;
1897         } else {
1898                 rtlpriv->mac80211.mac80211_registered = 1;
1899         }
1900
1901         err = sysfs_create_group(&pdev->dev.kobj, &rtl_attribute_group);
1902         if (err) {
1903                 RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
1904                          ("failed to create sysfs device attributes\n"));
1905                 goto fail3;
1906         }
1907
1908         /*init rfkill */
1909         rtl_init_rfkill(hw);
1910
1911         rtlpci = rtl_pcidev(pcipriv);
1912         err = request_irq(rtlpci->pdev->irq, &_rtl_pci_interrupt,
1913                           IRQF_SHARED, KBUILD_MODNAME, hw);
1914         if (err) {
1915                 RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
1916                          ("%s: failed to register IRQ handler\n",
1917                           wiphy_name(hw->wiphy)));
1918                 goto fail3;
1919         } else {
1920                 rtlpci->irq_alloc = 1;
1921         }
1922
1923         set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
1924         return 0;
1925
1926 fail3:
1927         pci_set_drvdata(pdev, NULL);
1928         rtl_deinit_core(hw);
1929         _rtl_pci_io_handler_release(hw);
1930         ieee80211_free_hw(hw);
1931
1932         if (rtlpriv->io.pci_mem_start != 0)
1933                 pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
1934
1935 fail2:
1936         pci_release_regions(pdev);
1937
1938 fail1:
1939
1940         pci_disable_device(pdev);
1941
1942         return -ENODEV;
1943
1944 }
1945 EXPORT_SYMBOL(rtl_pci_probe);
1946
1947 void rtl_pci_disconnect(struct pci_dev *pdev)
1948 {
1949         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
1950         struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
1951         struct rtl_priv *rtlpriv = rtl_priv(hw);
1952         struct rtl_pci *rtlpci = rtl_pcidev(pcipriv);
1953         struct rtl_mac *rtlmac = rtl_mac(rtlpriv);
1954
1955         clear_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
1956
1957         sysfs_remove_group(&pdev->dev.kobj, &rtl_attribute_group);
1958
1959         /*ieee80211_unregister_hw will call ops_stop */
1960         if (rtlmac->mac80211_registered == 1) {
1961                 ieee80211_unregister_hw(hw);
1962                 rtlmac->mac80211_registered = 0;
1963         } else {
1964                 rtl_deinit_deferred_work(hw);
1965                 rtlpriv->intf_ops->adapter_stop(hw);
1966         }
1967
1968         /*deinit rfkill */
1969         rtl_deinit_rfkill(hw);
1970
1971         rtl_pci_deinit(hw);
1972         rtl_deinit_core(hw);
1973         _rtl_pci_io_handler_release(hw);
1974         rtlpriv->cfg->ops->deinit_sw_vars(hw);
1975
1976         if (rtlpci->irq_alloc) {
1977                 free_irq(rtlpci->pdev->irq, hw);
1978                 rtlpci->irq_alloc = 0;
1979         }
1980
1981         if (rtlpriv->io.pci_mem_start != 0) {
1982                 pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start);
1983                 pci_release_regions(pdev);
1984         }
1985
1986         pci_disable_device(pdev);
1987
1988         rtl_pci_disable_aspm(hw);
1989
1990         pci_set_drvdata(pdev, NULL);
1991
1992         ieee80211_free_hw(hw);
1993 }
1994 EXPORT_SYMBOL(rtl_pci_disconnect);
1995
1996 /***************************************
1997 kernel pci power state define:
1998 PCI_D0         ((pci_power_t __force) 0)
1999 PCI_D1         ((pci_power_t __force) 1)
2000 PCI_D2         ((pci_power_t __force) 2)
2001 PCI_D3hot      ((pci_power_t __force) 3)
2002 PCI_D3cold     ((pci_power_t __force) 4)
2003 PCI_UNKNOWN    ((pci_power_t __force) 5)
2004
2005 This function is called when system
2006 goes into suspend state mac80211 will
2007 call rtl_mac_stop() from the mac80211
2008 suspend function first, So there is
2009 no need to call hw_disable here.
2010 ****************************************/
2011 int rtl_pci_suspend(struct pci_dev *pdev, pm_message_t state)
2012 {
2013         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
2014         struct rtl_priv *rtlpriv = rtl_priv(hw);
2015
2016         rtlpriv->cfg->ops->hw_suspend(hw);
2017         rtl_deinit_rfkill(hw);
2018
2019         pci_save_state(pdev);
2020         pci_disable_device(pdev);
2021         pci_set_power_state(pdev, PCI_D3hot);
2022         return 0;
2023 }
2024 EXPORT_SYMBOL(rtl_pci_suspend);
2025
2026 int rtl_pci_resume(struct pci_dev *pdev)
2027 {
2028         int ret;
2029         struct ieee80211_hw *hw = pci_get_drvdata(pdev);
2030         struct rtl_priv *rtlpriv = rtl_priv(hw);
2031
2032         pci_set_power_state(pdev, PCI_D0);
2033         ret = pci_enable_device(pdev);
2034         if (ret) {
2035                 RT_ASSERT(false, ("ERR: <======\n"));
2036                 return ret;
2037         }
2038
2039         pci_restore_state(pdev);
2040
2041         rtlpriv->cfg->ops->hw_resume(hw);
2042         rtl_init_rfkill(hw);
2043         return 0;
2044 }
2045 EXPORT_SYMBOL(rtl_pci_resume);
2046
2047 struct rtl_intf_ops rtl_pci_ops = {
2048         .read_efuse_byte = read_efuse_byte,
2049         .adapter_start = rtl_pci_start,
2050         .adapter_stop = rtl_pci_stop,
2051         .adapter_tx = rtl_pci_tx,
2052         .flush = rtl_pci_flush,
2053         .reset_trx_ring = rtl_pci_reset_trx_ring,
2054         .waitq_insert = rtl_pci_tx_chk_waitq_insert,
2055
2056         .disable_aspm = rtl_pci_disable_aspm,
2057         .enable_aspm = rtl_pci_enable_aspm,
2058 };