drivers/staging/rtl8723au/core/rtw_pwrctrl.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
   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  ******************************************************************************/
  15 #define _RTW_PWRCTRL_C_
  16
  17 #include <osdep_service.h>
  18 #include <drv_types.h>
  19 #include <osdep_intf.h>
  20
  21 #ifdef CONFIG_8723AU_BT_COEXIST
  22 #include <rtl8723a_hal.h>
  23 #endif
  24
  25 void ips_enter23a(struct rtw_adapter * padapter)
  26 {
  27         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
  28
  29         down(&pwrpriv->lock);
  30
  31         pwrpriv->bips_processing = true;
  32
  33         /*  syn ips_mode with request */
  34         pwrpriv->ips_mode = pwrpriv->ips_mode_req;
  35
  36         pwrpriv->ips_enter23a_cnts++;
  37         DBG_8723A("==>ips_enter23a cnts:%d\n", pwrpriv->ips_enter23a_cnts);
  38 #ifdef CONFIG_8723AU_BT_COEXIST
  39         BTDM_TurnOffBtCoexistBeforeEnterIPS(padapter);
  40 #endif
  41         if (rf_off == pwrpriv->change_rfpwrstate)
  42         {
  43                 pwrpriv->bpower_saving = true;
  44                 DBG_8723A_LEVEL(_drv_always_, "nolinked power save enter\n");
  45
  46                 if (pwrpriv->ips_mode == IPS_LEVEL_2)
  47                         pwrpriv->bkeepfwalive = true;
  48
  49                 rtw_ips_pwr_down23a(padapter);
  50                 pwrpriv->rf_pwrstate = rf_off;
  51         }
  52         pwrpriv->bips_processing = false;
  53
  54         up(&pwrpriv->lock);
  55 }
  56
  57 int ips_leave23a(struct rtw_adapter * padapter)
  58 {
  59         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
  60         struct security_priv *psecuritypriv = &padapter->securitypriv;
  61         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
  62         int result = _SUCCESS;
  63         int keyid;
  64
  65         down(&pwrpriv->lock);
  66
  67         if ((pwrpriv->rf_pwrstate == rf_off) &&!pwrpriv->bips_processing)
  68         {
  69                 pwrpriv->bips_processing = true;
  70                 pwrpriv->change_rfpwrstate = rf_on;
  71                 pwrpriv->ips_leave23a_cnts++;
  72                 DBG_8723A("==>ips_leave23a cnts:%d\n", pwrpriv->ips_leave23a_cnts);
  73
  74                 if ((result = rtw_ips_pwr_up23a(padapter)) == _SUCCESS) {
  75                         pwrpriv->rf_pwrstate = rf_on;
  76                 }
  77                 DBG_8723A_LEVEL(_drv_always_, "nolinked power save leave\n");
  78
  79                 if ((_WEP40_ == psecuritypriv->dot11PrivacyAlgrthm) ||(_WEP104_ == psecuritypriv->dot11PrivacyAlgrthm))
  80                 {
  81                         DBG_8723A("==>%s, channel(%d), processing(%x)\n", __func__, padapter->mlmeextpriv.cur_channel, pwrpriv->bips_processing);
  82                         set_channel_bwmode23a(padapter, padapter->mlmeextpriv.cur_channel, HAL_PRIME_CHNL_OFFSET_DONT_CARE, HT_CHANNEL_WIDTH_20);
  83                         for (keyid = 0;keyid<4;keyid++) {
  84                                 if (pmlmepriv->key_mask & CHKBIT(keyid)) {
  85                                         if (keyid == psecuritypriv->dot11PrivacyKeyIndex)
  86                                                 result = rtw_set_key23a(padapter, psecuritypriv, keyid, 1);
  87                                         else
  88                                                 result = rtw_set_key23a(padapter, psecuritypriv, keyid, 0);
  89                                 }
  90                         }
  91                 }
  92
  93                 DBG_8723A("==> ips_leave23a.....LED(0x%08x)...\n", rtw_read32(padapter, 0x4c));
  94                 pwrpriv->bips_processing = false;
  95
  96                 pwrpriv->bkeepfwalive = false;
  97                 pwrpriv->bpower_saving = false;
  98         }
  99
 100         up(&pwrpriv->lock);
 101
 102         return result;
 103 }
 104
 105
 106 static bool rtw_pwr_unassociated_idle(struct rtw_adapter *adapter)
 107 {
 108         struct rtw_adapter *buddy = adapter->pbuddy_adapter;
 109         struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
 110         struct xmit_priv *pxmit_priv = &adapter->xmitpriv;
 111         struct wifidirect_info *pwdinfo = &adapter->wdinfo;
 112
 113         bool ret = false;
 114
 115         if (time_after_eq(adapter->pwrctrlpriv.ips_deny_time, jiffies))
 116                 goto exit;
 117
 118         if (check_fwstate(pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR)
 119                 || check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS)
 120                 || check_fwstate(pmlmepriv, WIFI_AP_STATE)
 121                 || check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE)
 122                 || !rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE)
 123         ) {
 124                 goto exit;
 125         }
 126
 127         /* consider buddy, if exist */
 128         if (buddy) {
 129                 struct mlme_priv *b_pmlmepriv = &buddy->mlmepriv;
 130                 struct wifidirect_info *b_pwdinfo = &buddy->wdinfo;
 131
 132                 if (check_fwstate(b_pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR)
 133                         || check_fwstate(b_pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS)
 134                         || check_fwstate(b_pmlmepriv, WIFI_AP_STATE)
 135                         || check_fwstate(b_pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE)
 136                         || !rtw_p2p_chk_state(b_pwdinfo, P2P_STATE_NONE)
 137                 ) {
 138                         goto exit;
 139                 }
 140         }
 141
 142         if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF ||
 143                 pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF) {
 144                 DBG_8723A_LEVEL(_drv_always_, "There are some pkts to transmit\n");
 145                 DBG_8723A_LEVEL(_drv_info_, "free_xmitbuf_cnt: %d, free_xmit_extbuf_cnt: %d\n",
 146                         pxmit_priv->free_xmitbuf_cnt, pxmit_priv->free_xmit_extbuf_cnt);
 147                 goto exit;
 148         }
 149
 150         ret = true;
 151
 152 exit:
 153         return ret;
 154 }
 155
 156 void rtw_ps_processor23a(struct rtw_adapter*padapter)
 157 {
 158         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 159         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 160         enum rt_rf_power_state rfpwrstate;
 161
 162         pwrpriv->ps_processing = true;
 163
 164         if (pwrpriv->bips_processing == true)
 165                 goto exit;
 166
 167         if (padapter->pwrctrlpriv.bHWPwrPindetect) {
 168                 rfpwrstate = RfOnOffDetect23a(padapter);
 169                 DBG_8723A("@@@@- #2  %s ==> rfstate:%s\n", __func__, (rfpwrstate == rf_on)?"rf_on":"rf_off");
 170
 171                 if (rfpwrstate!= pwrpriv->rf_pwrstate) {
 172                         if (rfpwrstate == rf_off) {
 173                                 pwrpriv->change_rfpwrstate = rf_off;
 174                                 pwrpriv->brfoffbyhw = true;
 175                                 padapter->bCardDisableWOHSM = true;
 176                                 rtw_hw_suspend23a(padapter);
 177                         } else {
 178                                 pwrpriv->change_rfpwrstate = rf_on;
 179                                 rtw_hw_resume23a(padapter);
 180                         }
 181                         DBG_8723A("current rf_pwrstate(%s)\n", (pwrpriv->rf_pwrstate == rf_off)?"rf_off":"rf_on");
 182                 }
 183                 pwrpriv->pwr_state_check_cnts ++;
 184         }
 185
 186         if (pwrpriv->ips_mode_req == IPS_NONE)
 187                 goto exit;
 188
 189         if (rtw_pwr_unassociated_idle(padapter) == false)
 190                 goto exit;
 191
 192         if ((pwrpriv->rf_pwrstate == rf_on) && ((pwrpriv->pwr_state_check_cnts%4) == 0))
 193         {
 194                 DBG_8723A("==>%s .fw_state(%x)\n", __func__, get_fwstate(pmlmepriv));
 195                 pwrpriv->change_rfpwrstate = rf_off;
 196                 ips_enter23a(padapter);
 197         }
 198 exit:
 199         rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv);
 200         pwrpriv->ps_processing = false;
 201         return;
 202 }
 203
 204 static void pwr_state_check_handler(unsigned long data)
 205 {
 206         struct rtw_adapter *padapter = (struct rtw_adapter *)data;
 207         rtw_ps_cmd23a(padapter);
 208 }
 209
 210 /*
 211  *
 212  * Parameters
 213  *      padapter
 214  *      pslv                    power state level, only could be PS_STATE_S0 ~ PS_STATE_S4
 215  *
 216  */
 217 void rtw_set_rpwm23a(struct rtw_adapter *padapter, u8 pslv)
 218 {
 219         u8      rpwm;
 220         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 221
 222
 223
 224         pslv = PS_STATE(pslv);
 225
 226         if (true == pwrpriv->btcoex_rfon)
 227         {
 228                 if (pslv < PS_STATE_S4)
 229                         pslv = PS_STATE_S3;
 230         }
 231
 232         if (pwrpriv->rpwm == pslv) {
 233                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
 234                         ("%s: Already set rpwm[0x%02X], new = 0x%02X!\n", __func__, pwrpriv->rpwm, pslv));
 235                 return;
 236         }
 237
 238         if ((padapter->bSurpriseRemoved == true) ||
 239             (padapter->hw_init_completed == false)) {
 240                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
 241                                  ("%s: SurpriseRemoved(%d) hw_init_completed(%d)\n",
 242                                   __func__, padapter->bSurpriseRemoved, padapter->hw_init_completed));
 243
 244                 pwrpriv->cpwm = PS_STATE_S4;
 245
 246                 return;
 247         }
 248
 249         if (padapter->bDriverStopped == true) {
 250                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
 251                                  ("%s: change power state(0x%02X) when DriverStopped\n", __func__, pslv));
 252
 253                 if (pslv < PS_STATE_S2) {
 254                         RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
 255                                          ("%s: Reject to enter PS_STATE(0x%02X) lower than S2 when DriverStopped!!\n", __func__, pslv));
 256                         return;
 257                 }
 258         }
 259
 260         rpwm = pslv | pwrpriv->tog;
 261         RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
 262                          ("rtw_set_rpwm23a: rpwm = 0x%02x cpwm = 0x%02x\n", rpwm, pwrpriv->cpwm));
 263
 264         pwrpriv->rpwm = pslv;
 265
 266         rtl8723a_set_rpwm(padapter, rpwm);
 267
 268         pwrpriv->tog += 0x80;
 269         pwrpriv->cpwm = pslv;
 270
 271
 272 }
 273
 274 u8 PS_RDY_CHECK(struct rtw_adapter * padapter)
 275 {
 276         unsigned long delta_time;
 277         struct pwrctrl_priv     *pwrpriv = &padapter->pwrctrlpriv;
 278         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 279
 280         delta_time = jiffies - pwrpriv->DelayLPSLastTimeStamp;
 281
 282         if (delta_time < LPS_DELAY_TIME)
 283         {
 284                 return false;
 285         }
 286
 287         if ((check_fwstate(pmlmepriv, _FW_LINKED) == false) ||
 288                 (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) == true) ||
 289                 (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) ||
 290                 (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) ||
 291                 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true))
 292                 return false;
 293         if (true == pwrpriv->bInSuspend)
 294                 return false;
 295         if ((padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) && (padapter->securitypriv.binstallGrpkey == false))
 296         {
 297                 DBG_8723A("Group handshake still in progress !!!\n");
 298                 return false;
 299         }
 300         if (!rtw_cfg80211_pwr_mgmt(padapter))
 301                 return false;
 302
 303         return true;
 304 }
 305
 306 void rtw_set_ps_mode23a(struct rtw_adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode)
 307 {
 308         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 309 #ifdef CONFIG_8723AU_P2P
 310         struct wifidirect_info *pwdinfo = &padapter->wdinfo;
 311 #endif /* CONFIG_8723AU_P2P */
 312
 313
 314
 315         RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
 316                          ("%s: PowerMode =%d Smart_PS =%d\n",
 317                           __func__, ps_mode, smart_ps));
 318
 319         if (ps_mode > PM_Card_Disable) {
 320                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("ps_mode:%d error\n", ps_mode));
 321                 return;
 322         }
 323
 324         if (pwrpriv->pwr_mode == ps_mode)
 325         {
 326                 if (PS_MODE_ACTIVE == ps_mode) return;
 327
 328                 if ((pwrpriv->smart_ps == smart_ps) &&
 329                         (pwrpriv->bcn_ant_mode == bcn_ant_mode))
 330                 {
 331                         return;
 332                 }
 333         }
 334
 335         if (ps_mode == PS_MODE_ACTIVE) {
 336 #ifdef CONFIG_8723AU_P2P
 337                 if (pwdinfo->opp_ps == 0)
 338 #endif /* CONFIG_8723AU_P2P */
 339                 {
 340                         DBG_8723A("rtw_set_ps_mode23a: Leave 802.11 power save\n");
 341
 342                         pwrpriv->pwr_mode = ps_mode;
 343                         rtw_set_rpwm23a(padapter, PS_STATE_S4);
 344                         rtl8723a_set_FwPwrMode_cmd(padapter, ps_mode);
 345                         pwrpriv->bFwCurrentInPSMode = false;
 346                 }
 347         } else {
 348                 if (PS_RDY_CHECK(padapter)
 349 #ifdef CONFIG_8723AU_BT_COEXIST
 350                         || (BT_1Ant(padapter) == true)
 351 #endif
 352                         ) {
 353                         DBG_8723A("%s: Enter 802.11 power save\n", __func__);
 354
 355                         pwrpriv->bFwCurrentInPSMode = true;
 356                         pwrpriv->pwr_mode = ps_mode;
 357                         pwrpriv->smart_ps = smart_ps;
 358                         pwrpriv->bcn_ant_mode = bcn_ant_mode;
 359                         rtl8723a_set_FwPwrMode_cmd(padapter, ps_mode);
 360
 361 #ifdef CONFIG_8723AU_P2P
 362                         /*  Set CTWindow after LPS */
 363                         if (pwdinfo->opp_ps == 1)
 364                                 p2p_ps_wk_cmd23a(padapter, P2P_PS_ENABLE, 0);
 365 #endif /* CONFIG_8723AU_P2P */
 366
 367                         rtw_set_rpwm23a(padapter, PS_STATE_S2);
 368                 }
 369         }
 370 }
 371
 372 /*
 373  * Return:
 374  *      0:      Leave OK
 375  *      -1:     Timeout
 376  *      -2:     Other error
 377  */
 378 s32 LPS_RF_ON_check23a(struct rtw_adapter *padapter, u32 delay_ms)
 379 {
 380         unsigned long start_time, end_time;
 381         u8 bAwake = false;
 382         s32 err = 0;
 383
 384         start_time = jiffies;
 385         end_time = start_time + msecs_to_jiffies(delay_ms);
 386
 387         while (1)
 388         {
 389                 rtw23a_hal_get_hwreg(padapter, HW_VAR_FWLPS_RF_ON, &bAwake);
 390                 if (true == bAwake)
 391                         break;
 392
 393                 if (true == padapter->bSurpriseRemoved)
 394                 {
 395                         err = -2;
 396                         DBG_8723A("%s: device surprise removed!!\n", __func__);
 397                         break;
 398                 }
 399
 400                 if (time_after(jiffies, end_time)) {
 401                         err = -1;
 402                         DBG_8723A("%s: Wait for FW LPS leave more than %u ms!!!\n", __func__, delay_ms);
 403                         break;
 404                 }
 405                 udelay(100);
 406         }
 407
 408         return err;
 409 }
 410
 411 /*      Description: */
 412 /*              Enter the leisure power save mode. */
 413 void LPS_Enter23a(struct rtw_adapter *padapter)
 414 {
 415         struct pwrctrl_priv     *pwrpriv = &padapter->pwrctrlpriv;
 416
 417         if (!PS_RDY_CHECK(padapter))
 418                 return;
 419
 420         if (pwrpriv->bLeisurePs) {
 421                 /*  Idle for a while if we connect to AP a while ago. */
 422                 if (pwrpriv->LpsIdleCount >= 2) { /*   4 Sec */
 423                         if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
 424                                 pwrpriv->bpower_saving = true;
 425                                 DBG_8723A("%s smart_ps:%d\n", __func__, pwrpriv->smart_ps);
 426                                 /* For Tenda W311R IOT issue */
 427                                 rtw_set_ps_mode23a(padapter, pwrpriv->power_mgnt, pwrpriv->smart_ps, 0);
 428                         }
 429                 } else {
 430                         pwrpriv->LpsIdleCount++;
 431                 }
 432         }
 433 }
 434
 435 /*      Description: */
 436 /*              Leave the leisure power save mode. */
 437 void LPS_Leave23a(struct rtw_adapter *padapter)
 438 {
 439 #define LPS_LEAVE_TIMEOUT_MS 100
 440
 441         struct pwrctrl_priv     *pwrpriv = &padapter->pwrctrlpriv;
 442
 443         if (pwrpriv->bLeisurePs) {
 444                 if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) {
 445                         rtw_set_ps_mode23a(padapter, PS_MODE_ACTIVE, 0, 0);
 446
 447                         if (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
 448                                 LPS_RF_ON_check23a(padapter, LPS_LEAVE_TIMEOUT_MS);
 449                 }
 450         }
 451
 452         pwrpriv->bpower_saving = false;
 453 }
 454
 455 /*  Description: Leave all power save mode: LPS, FwLPS, IPS if needed. */
 456 /*  Move code to function by tynli. 2010.03.26. */
 457 void LeaveAllPowerSaveMode23a(struct rtw_adapter *Adapter)
 458 {
 459         struct mlme_priv *pmlmepriv = &Adapter->mlmepriv;
 460         u8      enqueue = 0;
 461
 462
 463
 464         /* DBG_8723A("%s.....\n", __func__); */
 465         if (check_fwstate(pmlmepriv, _FW_LINKED) == true)
 466         { /* connect */
 467 #ifdef CONFIG_8723AU_P2P
 468                 p2p_ps_wk_cmd23a(Adapter, P2P_PS_DISABLE, enqueue);
 469 #endif /* CONFIG_8723AU_P2P */
 470
 471                 rtw_lps_ctrl_wk_cmd23a(Adapter, LPS_CTRL_LEAVE, enqueue);
 472         }
 473
 474
 475 }
 476
 477 void rtw_init_pwrctrl_priv23a(struct rtw_adapter *padapter)
 478 {
 479         struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
 480
 481         sema_init(&pwrctrlpriv->lock, 1);
 482         pwrctrlpriv->rf_pwrstate = rf_on;
 483         pwrctrlpriv->ips_enter23a_cnts = 0;
 484         pwrctrlpriv->ips_leave23a_cnts = 0;
 485         pwrctrlpriv->bips_processing = false;
 486
 487         pwrctrlpriv->ips_mode = padapter->registrypriv.ips_mode;
 488         pwrctrlpriv->ips_mode_req = padapter->registrypriv.ips_mode;
 489
 490         pwrctrlpriv->pwr_state_check_interval = RTW_PWR_STATE_CHK_INTERVAL;
 491         pwrctrlpriv->pwr_state_check_cnts = 0;
 492         pwrctrlpriv->bInternalAutoSuspend = false;
 493         pwrctrlpriv->bInSuspend = false;
 494         pwrctrlpriv->bkeepfwalive = false;
 495
 496         pwrctrlpriv->LpsIdleCount = 0;
 497         pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/*  PS_MODE_MIN; */
 498         pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt)?true:false;
 499
 500         pwrctrlpriv->bFwCurrentInPSMode = false;
 501
 502         pwrctrlpriv->rpwm = 0;
 503         pwrctrlpriv->cpwm = PS_STATE_S4;
 504
 505         pwrctrlpriv->pwr_mode = PS_MODE_ACTIVE;
 506         pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps;
 507         pwrctrlpriv->bcn_ant_mode = 0;
 508
 509         pwrctrlpriv->tog = 0x80;
 510
 511         pwrctrlpriv->btcoex_rfon = false;
 512
 513         setup_timer(&pwrctrlpriv->pwr_state_check_timer,
 514                     pwr_state_check_handler, (unsigned long)padapter);
 515
 516
 517 }
 518
 519 void rtw_free_pwrctrl_priv(struct rtw_adapter *adapter)
 520 {
 521 }
 522
 523 u8 rtw_interface_ps_func23a(struct rtw_adapter *padapter, enum hal_intf_ps_func efunc_id, u8* val)
 524 {
 525         u8 bResult = true;
 526         rtw_hal_intf_ps_func23a(padapter, efunc_id, val);
 527
 528         return bResult;
 529 }
 530
 531 inline void rtw_set_ips_deny23a(struct rtw_adapter *padapter, u32 ms)
 532 {
 533         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 534         pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ms);
 535 }
 536
 537 /*
 538 * rtw_pwr_wakeup - Wake the NIC up from: 1)IPS. 2)USB autosuspend
 539 * @adapter: pointer to _adapter structure
 540 * @ips_deffer_ms: the ms wiil prevent from falling into IPS after wakeup
 541 * Return _SUCCESS or _FAIL
 542 */
 543
 544 int _rtw_pwr_wakeup23a(struct rtw_adapter *padapter, u32 ips_deffer_ms, const char *caller)
 545 {
 546         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 547         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 548         int ret = _SUCCESS;
 549         unsigned long start = jiffies;
 550         unsigned long new_deny_time;
 551
 552         new_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
 553
 554         if (time_before(pwrpriv->ips_deny_time, new_deny_time))
 555                 pwrpriv->ips_deny_time = new_deny_time;
 556
 557         if (pwrpriv->ps_processing) {
 558                 DBG_8723A("%s wait ps_processing...\n", __func__);
 559                 while (pwrpriv->ps_processing &&
 560                        jiffies_to_msecs(jiffies - start) <= 3000)
 561                         msleep(10);
 562                 if (pwrpriv->ps_processing)
 563                         DBG_8723A("%s wait ps_processing timeout\n", __func__);
 564                 else
 565                         DBG_8723A("%s wait ps_processing done\n", __func__);
 566         }
 567
 568         if (rtw_hal_sreset_inprogress(padapter)) {
 569                 DBG_8723A("%s wait sreset_inprogress...\n", __func__);
 570                 while (rtw_hal_sreset_inprogress(padapter) &&
 571                        jiffies_to_msecs(jiffies - start) <= 4000)
 572                         msleep(10);
 573                 if (rtw_hal_sreset_inprogress(padapter))
 574                         DBG_8723A("%s wait sreset_inprogress timeout\n", __func__);
 575                 else
 576                         DBG_8723A("%s wait sreset_inprogress done\n", __func__);
 577         }
 578
 579         if (pwrpriv->bInternalAutoSuspend == false && pwrpriv->bInSuspend) {
 580                 DBG_8723A("%s wait bInSuspend...\n", __func__);
 581                 while (pwrpriv->bInSuspend &&
 582                        (jiffies_to_msecs(jiffies - start) <= 3000)) {
 583                         msleep(10);
 584                 }
 585                 if (pwrpriv->bInSuspend)
 586                         DBG_8723A("%s wait bInSuspend timeout\n", __func__);
 587                 else
 588                         DBG_8723A("%s wait bInSuspend done\n", __func__);
 589         }
 590
 591         /* System suspend is not allowed to wakeup */
 592         if ((pwrpriv->bInternalAutoSuspend == false) && (true == pwrpriv->bInSuspend)) {
 593                 ret = _FAIL;
 594                 goto exit;
 595         }
 596
 597         /* block??? */
 598         if ((pwrpriv->bInternalAutoSuspend == true)  && (padapter->net_closed == true)) {
 599                 ret = _FAIL;
 600                 goto exit;
 601         }
 602
 603         /* I think this should be check in IPS, LPS, autosuspend functions... */
 604         if (check_fwstate(pmlmepriv, _FW_LINKED) == true)
 605         {
 606                 ret = _SUCCESS;
 607                 goto exit;
 608         }
 609
 610         if (rf_off == pwrpriv->rf_pwrstate) {
 611                 DBG_8723A("%s call ips_leave23a....\n", __func__);
 612                 if (_FAIL ==  ips_leave23a(padapter)) {
 613                         DBG_8723A("======> ips_leave23a fail.............\n");
 614                         ret = _FAIL;
 615                         goto exit;
 616                 }
 617         }
 618
 619         /* TODO: the following checking need to be merged... */
 620         if (padapter->bDriverStopped || !padapter->bup ||
 621             !padapter->hw_init_completed) {
 622                 DBG_8723A("%s: bDriverStopped =%d, bup =%d, hw_init_completed "
 623                           "=%u\n", caller, padapter->bDriverStopped,
 624                           padapter->bup, padapter->hw_init_completed);
 625                 ret = false;
 626                 goto exit;
 627         }
 628
 629 exit:
 630         new_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
 631         if (time_before(pwrpriv->ips_deny_time, new_deny_time))
 632                 pwrpriv->ips_deny_time = new_deny_time;
 633         return ret;
 634 }
 635
 636 int rtw_pm_set_lps23a(struct rtw_adapter *padapter, u8 mode)
 637 {
 638         int     ret = 0;
 639         struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
 640
 641         if (mode < PS_MODE_NUM)
 642         {
 643                 if (pwrctrlpriv->power_mgnt != mode)
 644                 {
 645                         if (PS_MODE_ACTIVE == mode)
 646                         {
 647                                 LeaveAllPowerSaveMode23a(padapter);
 648                         }
 649                         else
 650                         {
 651                                 pwrctrlpriv->LpsIdleCount = 2;
 652                         }
 653                         pwrctrlpriv->power_mgnt = mode;
 654                         pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt)?true:false;
 655                 }
 656         }
 657         else
 658         {
 659                 ret = -EINVAL;
 660         }
 661
 662         return ret;
 663 }
 664
 665 int rtw_pm_set_ips23a(struct rtw_adapter *padapter, u8 mode)
 666 {
 667         struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
 668
 669         if (mode == IPS_NORMAL || mode == IPS_LEVEL_2) {
 670                 rtw_ips_mode_req(pwrctrlpriv, mode);
 671                 DBG_8723A("%s %s\n", __func__, mode == IPS_NORMAL?"IPS_NORMAL":"IPS_LEVEL_2");
 672                 return 0;
 673         }
 674         else if (mode == IPS_NONE) {
 675                 rtw_ips_mode_req(pwrctrlpriv, mode);
 676                 DBG_8723A("%s %s\n", __func__, "IPS_NONE");
 677                 if ((padapter->bSurpriseRemoved == 0)&&_FAIL == rtw_pwr_wakeup(padapter))
 678                         return -EFAULT;
 679         }
 680         else {
 681                 return -EINVAL;
 682         }
 683         return 0;
 684 }