drivers/staging/rtl8723bs/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 <drv_types.h>
  18 #include <rtw_debug.h>
  19 #include <hal_data.h>
  20 #include <linux/jiffies.h>
  21
  22
  23 void _ips_enter(struct adapter *padapter)
  24 {
  25         struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
  26
  27         pwrpriv->bips_processing = true;
  28
  29         /*  syn ips_mode with request */
  30         pwrpriv->ips_mode = pwrpriv->ips_mode_req;
  31
  32         pwrpriv->ips_enter_cnts++;
  33         DBG_871X("==>ips_enter cnts:%d\n", pwrpriv->ips_enter_cnts);
  34
  35         if (rf_off == pwrpriv->change_rfpwrstate) {
  36                 pwrpriv->bpower_saving = true;
  37                 DBG_871X_LEVEL(_drv_always_, "nolinked power save enter\n");
  38
  39                 if (pwrpriv->ips_mode == IPS_LEVEL_2)
  40                         pwrpriv->bkeepfwalive = true;
  41
  42                 rtw_ips_pwr_down(padapter);
  43                 pwrpriv->rf_pwrstate = rf_off;
  44         }
  45         pwrpriv->bips_processing = false;
  46
  47 }
  48
  49 void ips_enter(struct adapter *padapter)
  50 {
  51         struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
  52
  53
  54         rtw_btcoex_IpsNotify(padapter, pwrpriv->ips_mode_req);
  55
  56         down(&pwrpriv->lock);
  57         _ips_enter(padapter);
  58         up(&pwrpriv->lock);
  59 }
  60
  61 int _ips_leave(struct adapter *padapter)
  62 {
  63         struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
  64         int result = _SUCCESS;
  65
  66         if ((pwrpriv->rf_pwrstate == rf_off) && (!pwrpriv->bips_processing)) {
  67                 pwrpriv->bips_processing = true;
  68                 pwrpriv->change_rfpwrstate = rf_on;
  69                 pwrpriv->ips_leave_cnts++;
  70                 DBG_871X("==>ips_leave cnts:%d\n", pwrpriv->ips_leave_cnts);
  71
  72                 result = rtw_ips_pwr_up(padapter);
  73                 if (result == _SUCCESS) {
  74                         pwrpriv->rf_pwrstate = rf_on;
  75                 }
  76                 DBG_871X_LEVEL(_drv_always_, "nolinked power save leave\n");
  77
  78                 DBG_871X("==> ips_leave.....LED(0x%08x)...\n", rtw_read32(padapter, 0x4c));
  79                 pwrpriv->bips_processing = false;
  80
  81                 pwrpriv->bkeepfwalive = false;
  82                 pwrpriv->bpower_saving = false;
  83         }
  84
  85         return result;
  86 }
  87
  88 int ips_leave(struct adapter *padapter)
  89 {
  90         struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
  91         int ret;
  92
  93         if (!is_primary_adapter(padapter))
  94                 return _SUCCESS;
  95
  96         down(&pwrpriv->lock);
  97         ret = _ips_leave(padapter);
  98         up(&pwrpriv->lock);
  99
 100         if (_SUCCESS == ret)
 101                 rtw_btcoex_IpsNotify(padapter, IPS_NONE);
 102
 103         return ret;
 104 }
 105
 106 static bool rtw_pwr_unassociated_idle(struct adapter *adapter)
 107 {
 108         struct adapter *buddy = adapter->pbuddy_adapter;
 109         struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
 110         struct xmit_priv *pxmit_priv = &adapter->xmitpriv;
 111
 112         bool ret = false;
 113
 114         if (adapter_to_pwrctl(adapter)->bpower_saving == true) {
 115                 /* DBG_871X("%s: already in LPS or IPS mode\n", __func__); */
 116                 goto exit;
 117         }
 118
 119         if (time_before(jiffies, adapter_to_pwrctl(adapter)->ips_deny_time)) {
 120                 /* DBG_871X("%s ips_deny_time\n", __func__); */
 121                 goto exit;
 122         }
 123
 124         if (check_fwstate(pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR)
 125                 || check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS)
 126                 || check_fwstate(pmlmepriv, WIFI_AP_STATE)
 127                 || check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE)
 128         )
 129                 goto exit;
 130
 131         /* consider buddy, if exist */
 132         if (buddy) {
 133                 struct mlme_priv *b_pmlmepriv = &(buddy->mlmepriv);
 134
 135                 if (check_fwstate(b_pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR)
 136                         || check_fwstate(b_pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS)
 137                         || check_fwstate(b_pmlmepriv, WIFI_AP_STATE)
 138                         || check_fwstate(b_pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE)
 139                 )
 140                         goto exit;
 141         }
 142
 143         if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF ||
 144                 pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF) {
 145                 DBG_871X_LEVEL(_drv_always_, "There are some pkts to transmit\n");
 146                 DBG_871X_LEVEL(_drv_always_, "free_xmitbuf_cnt: %d, free_xmit_extbuf_cnt: %d\n",
 147                         pxmit_priv->free_xmitbuf_cnt, pxmit_priv->free_xmit_extbuf_cnt);
 148                 goto exit;
 149         }
 150
 151         ret = true;
 152
 153 exit:
 154         return ret;
 155 }
 156
 157
 158 /*
 159  * ATTENTION:
 160  *rtw_ps_processor() doesn't handle LPS.
 161  */
 162 void rtw_ps_processor(struct adapter *padapter)
 163 {
 164         struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
 165         struct dvobj_priv *psdpriv = padapter->dvobj;
 166         struct debug_priv *pdbgpriv = &psdpriv->drv_dbg;
 167         u32 ps_deny = 0;
 168
 169         down(&adapter_to_pwrctl(padapter)->lock);
 170         ps_deny = rtw_ps_deny_get(padapter);
 171         up(&adapter_to_pwrctl(padapter)->lock);
 172         if (ps_deny != 0) {
 173                 DBG_871X(FUNC_ADPT_FMT ": ps_deny = 0x%08X, skip power save!\n",
 174                         FUNC_ADPT_ARG(padapter), ps_deny);
 175                 goto exit;
 176         }
 177
 178         if (pwrpriv->bInSuspend == true) {/* system suspend or autosuspend */
 179                 pdbgpriv->dbg_ps_insuspend_cnt++;
 180                 DBG_871X("%s, pwrpriv->bInSuspend == true ignore this process\n", __func__);
 181                 return;
 182         }
 183
 184         pwrpriv->ps_processing = true;
 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                 DBG_871X("==>%s\n", __func__);
 194                 pwrpriv->change_rfpwrstate = rf_off;
 195                 {
 196                         ips_enter(padapter);
 197                 }
 198         }
 199 exit:
 200         pwrpriv->ps_processing = false;
 201         return;
 202 }
 203
 204 void pwr_state_check_handler(RTW_TIMER_HDL_ARGS);
 205 void pwr_state_check_handler(RTW_TIMER_HDL_ARGS)
 206 {
 207         struct adapter *padapter = (struct adapter *)FunctionContext;
 208         rtw_ps_cmd(padapter);
 209 }
 210
 211 void traffic_check_for_leave_lps(struct adapter *padapter, u8 tx, u32 tx_packets)
 212 {
 213         static unsigned long start_time;
 214         static u32 xmit_cnt;
 215         u8 bLeaveLPS = false;
 216         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 217
 218
 219
 220         if (tx) { /* from tx */
 221                 xmit_cnt += tx_packets;
 222
 223                 if (start_time == 0)
 224                         start_time = jiffies;
 225
 226                 if (jiffies_to_msecs(jiffies - start_time) > 2000) { /*  2 sec == watch dog timer */
 227                         if (xmit_cnt > 8) {
 228                                 if ((adapter_to_pwrctl(padapter)->bLeisurePs)
 229                                         && (adapter_to_pwrctl(padapter)->pwr_mode != PS_MODE_ACTIVE)
 230                                         && (rtw_btcoex_IsBtControlLps(padapter) == false)
 231                                         ) {
 232                                         DBG_871X("leave lps via Tx = %d\n", xmit_cnt);
 233                                         bLeaveLPS = true;
 234                                 }
 235                         }
 236
 237                         start_time = jiffies;
 238                         xmit_cnt = 0;
 239                 }
 240
 241         } else { /*  from rx path */
 242                 if (pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod > 4/*2*/) {
 243                         if ((adapter_to_pwrctl(padapter)->bLeisurePs)
 244                                 && (adapter_to_pwrctl(padapter)->pwr_mode != PS_MODE_ACTIVE)
 245                                 && (rtw_btcoex_IsBtControlLps(padapter) == false)
 246                                 ) {
 247                                 DBG_871X("leave lps via Rx = %d\n", pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod);
 248                                 bLeaveLPS = true;
 249                         }
 250                 }
 251         }
 252
 253         if (bLeaveLPS)
 254                 /* DBG_871X("leave lps via %s, Tx = %d, Rx = %d\n", tx?"Tx":"Rx", pmlmepriv->LinkDetectInfo.NumTxOkInPeriod, pmlmepriv->LinkDetectInfo.NumRxUnicastOkInPeriod); */
 255                 /* rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, 1); */
 256                 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_LEAVE, tx?0:1);
 257 }
 258
 259 /*
 260  * Description:
 261  *This function MUST be called under power lock protect
 262  *
 263  * Parameters
 264  *padapter
 265  *pslv                  power state level, only could be PS_STATE_S0 ~ PS_STATE_S4
 266  *
 267  */
 268 void rtw_set_rpwm(struct adapter *padapter, u8 pslv)
 269 {
 270         u8 rpwm;
 271         struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
 272         u8 cpwm_orig;
 273
 274         pslv = PS_STATE(pslv);
 275
 276         if (pwrpriv->brpwmtimeout == true) {
 277                 DBG_871X("%s: RPWM timeout, force to set RPWM(0x%02X) again!\n", __func__, pslv);
 278         } else{
 279                 if ((pwrpriv->rpwm == pslv)
 280                         || ((pwrpriv->rpwm >= PS_STATE_S2) && (pslv >= PS_STATE_S2))) {
 281                         RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
 282                                 ("%s: Already set rpwm[0x%02X], new = 0x%02X!\n", __func__, pwrpriv->rpwm, pslv));
 283                         return;
 284                 }
 285         }
 286
 287         if ((padapter->bSurpriseRemoved == true) ||
 288                 (padapter->hw_init_completed == false)) {
 289                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
 290                                  ("%s: SurpriseRemoved(%d) hw_init_completed(%d)\n",
 291                                   __func__, padapter->bSurpriseRemoved, padapter->hw_init_completed));
 292
 293                 pwrpriv->cpwm = PS_STATE_S4;
 294
 295                 return;
 296         }
 297
 298         if (padapter->bDriverStopped == true) {
 299                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
 300                                  ("%s: change power state(0x%02X) when DriverStopped\n", __func__, pslv));
 301
 302                 if (pslv < PS_STATE_S2) {
 303                         RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
 304                                          ("%s: Reject to enter PS_STATE(0x%02X) lower than S2 when DriverStopped!!\n", __func__, pslv));
 305                         return;
 306                 }
 307         }
 308
 309         rpwm = pslv | pwrpriv->tog;
 310         /*  only when from PS_STATE S0/S1 to S2 and higher needs ACK */
 311         if ((pwrpriv->cpwm < PS_STATE_S2) && (pslv >= PS_STATE_S2))
 312                 rpwm |= PS_ACK;
 313         RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
 314                          ("rtw_set_rpwm: rpwm = 0x%02x cpwm = 0x%02x\n", rpwm, pwrpriv->cpwm));
 315
 316         pwrpriv->rpwm = pslv;
 317
 318         cpwm_orig = 0;
 319         if (rpwm & PS_ACK)
 320                 rtw_hal_get_hwreg(padapter, HW_VAR_CPWM, &cpwm_orig);
 321
 322         if (rpwm & PS_ACK)
 323                 _set_timer(&pwrpriv->pwr_rpwm_timer, LPS_RPWM_WAIT_MS);
 324         rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&rpwm));
 325
 326         pwrpriv->tog += 0x80;
 327
 328         /*  No LPS 32K, No Ack */
 329         if (rpwm & PS_ACK) {
 330                 unsigned long start_time;
 331                 u8 cpwm_now;
 332                 u8 poll_cnt = 0;
 333
 334                 start_time = jiffies;
 335
 336                 /*  polling cpwm */
 337                 do {
 338                         mdelay(1);
 339                         poll_cnt++;
 340                         rtw_hal_get_hwreg(padapter, HW_VAR_CPWM, &cpwm_now);
 341                         if ((cpwm_orig ^ cpwm_now) & 0x80) {
 342                                 pwrpriv->cpwm = PS_STATE_S4;
 343                                 pwrpriv->cpwm_tog = cpwm_now & PS_TOGGLE;
 344                                 break;
 345                         }
 346
 347                         if (jiffies_to_msecs(jiffies - start_time) > LPS_RPWM_WAIT_MS) {
 348                                 DBG_871X("%s: polling cpwm timeout! poll_cnt =%d, cpwm_orig =%02x, cpwm_now =%02x\n", __func__, poll_cnt, cpwm_orig, cpwm_now);
 349                                 _set_timer(&pwrpriv->pwr_rpwm_timer, 1);
 350                                 break;
 351                         }
 352                 } while (1);
 353         } else
 354                 pwrpriv->cpwm = pslv;
 355 }
 356
 357 static u8 PS_RDY_CHECK(struct adapter *padapter)
 358 {
 359         unsigned long curr_time, delta_time;
 360         struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
 361         struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
 362
 363 #if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN)
 364         if (true == pwrpriv->bInSuspend && pwrpriv->wowlan_mode)
 365                 return true;
 366         else if (true == pwrpriv->bInSuspend && pwrpriv->wowlan_ap_mode)
 367                 return true;
 368         else if (true == pwrpriv->bInSuspend)
 369                 return false;
 370 #else
 371         if (true == pwrpriv->bInSuspend)
 372                 return false;
 373 #endif
 374
 375         curr_time = jiffies;
 376
 377         delta_time = curr_time - pwrpriv->DelayLPSLastTimeStamp;
 378
 379         if (delta_time < LPS_DELAY_TIME)
 380                 return false;
 381
 382         if (check_fwstate(pmlmepriv, WIFI_SITE_MONITOR)
 383                 || check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS)
 384                 || check_fwstate(pmlmepriv, WIFI_AP_STATE)
 385                 || check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE)
 386                 || rtw_is_scan_deny(padapter)
 387         )
 388                 return false;
 389
 390         if ((padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) && (padapter->securitypriv.binstallGrpkey == false)) {
 391                 DBG_871X("Group handshake still in progress !!!\n");
 392                 return false;
 393         }
 394
 395         if (!rtw_cfg80211_pwr_mgmt(padapter))
 396                 return false;
 397
 398         return true;
 399 }
 400
 401 void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode, const char *msg)
 402 {
 403         struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
 404 #if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN)
 405         struct debug_priv *pdbgpriv = &padapter->dvobj->drv_dbg;
 406 #endif
 407
 408         RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
 409                          ("%s: PowerMode =%d Smart_PS =%d\n",
 410                           __func__, ps_mode, smart_ps));
 411
 412         if (ps_mode > PM_Card_Disable) {
 413                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("ps_mode:%d error\n", ps_mode));
 414                 return;
 415         }
 416
 417         if (pwrpriv->pwr_mode == ps_mode)
 418                 if (PS_MODE_ACTIVE == ps_mode)
 419                         return;
 420
 421
 422         down(&pwrpriv->lock);
 423
 424         /* if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) */
 425         if (ps_mode == PS_MODE_ACTIVE) {
 426                 if (1
 427                         && (((rtw_btcoex_IsBtControlLps(padapter) == false)
 428                                         )
 429                                 || ((rtw_btcoex_IsBtControlLps(padapter) == true)
 430                                         && (rtw_btcoex_IsLpsOn(padapter) == false))
 431                                 )
 432                         ) {
 433                         DBG_871X(FUNC_ADPT_FMT" Leave 802.11 power save - %s\n",
 434                                 FUNC_ADPT_ARG(padapter), msg);
 435
 436                         pwrpriv->pwr_mode = ps_mode;
 437                         rtw_set_rpwm(padapter, PS_STATE_S4);
 438
 439 #if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN)
 440                         if (pwrpriv->wowlan_mode == true ||
 441                                         pwrpriv->wowlan_ap_mode == true) {
 442                                 unsigned long start_time;
 443                                 u32 delay_ms;
 444                                 u8 val8;
 445                                 delay_ms = 20;
 446                                 start_time = jiffies;
 447                                 do {
 448                                         rtw_hal_get_hwreg(padapter, HW_VAR_SYS_CLKR, &val8);
 449                                         if (!(val8 & BIT(4))) { /* 0x08 bit4 = 1 --> in 32k, bit4 = 0 --> leave 32k */
 450                                                 pwrpriv->cpwm = PS_STATE_S4;
 451                                                 break;
 452                                         }
 453                                         if (jiffies_to_msecs(jiffies - start_time) > delay_ms) {
 454                                                 DBG_871X("%s: Wait for FW 32K leave more than %u ms!!!\n",
 455                                                                 __func__, delay_ms);
 456                                                 pdbgpriv->dbg_wow_leave_ps_fail_cnt++;
 457                                                 break;
 458                                         }
 459                                         msleep(1);
 460                                 } while (1);
 461                         }
 462 #endif
 463                         rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode));
 464                         pwrpriv->bFwCurrentInPSMode = false;
 465
 466                         rtw_btcoex_LpsNotify(padapter, ps_mode);
 467                 }
 468         } else{
 469                 if ((PS_RDY_CHECK(padapter) && check_fwstate(&padapter->mlmepriv, WIFI_ASOC_STATE))
 470                         || ((rtw_btcoex_IsBtControlLps(padapter) == true)
 471                                 && (rtw_btcoex_IsLpsOn(padapter) == true))
 472                         ) {
 473                         u8 pslv;
 474
 475                         DBG_871X(FUNC_ADPT_FMT" Enter 802.11 power save - %s\n",
 476                                 FUNC_ADPT_ARG(padapter), msg);
 477
 478                         rtw_btcoex_LpsNotify(padapter, ps_mode);
 479
 480                         pwrpriv->bFwCurrentInPSMode = true;
 481                         pwrpriv->pwr_mode = ps_mode;
 482                         pwrpriv->smart_ps = smart_ps;
 483                         pwrpriv->bcn_ant_mode = bcn_ant_mode;
 484                         rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode));
 485
 486                         pslv = PS_STATE_S2;
 487                         if (pwrpriv->alives == 0)
 488                                 pslv = PS_STATE_S0;
 489
 490                         if ((rtw_btcoex_IsBtDisabled(padapter) == false)
 491                                 && (rtw_btcoex_IsBtControlLps(padapter) == true)) {
 492                                 u8 val8;
 493
 494                                 val8 = rtw_btcoex_LpsVal(padapter);
 495                                 if (val8 & BIT(4))
 496                                         pslv = PS_STATE_S2;
 497                         }
 498
 499                         rtw_set_rpwm(padapter, pslv);
 500                 }
 501         }
 502
 503         up(&pwrpriv->lock);
 504 }
 505
 506 /*
 507  * Return:
 508  *0:    Leave OK
 509  *-1:   Timeout
 510  *-2:   Other error
 511  */
 512 s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms)
 513 {
 514         unsigned long start_time;
 515         u8 bAwake = false;
 516         s32 err = 0;
 517
 518
 519         start_time = jiffies;
 520         while (1) {
 521                 rtw_hal_get_hwreg(padapter, HW_VAR_FWLPS_RF_ON, &bAwake);
 522                 if (true == bAwake)
 523                         break;
 524
 525                 if (true == padapter->bSurpriseRemoved) {
 526                         err = -2;
 527                         DBG_871X("%s: device surprise removed!!\n", __func__);
 528                         break;
 529                 }
 530
 531                 if (jiffies_to_msecs(jiffies - start_time) > delay_ms) {
 532                         err = -1;
 533                         DBG_871X("%s: Wait for FW LPS leave more than %u ms!!!\n", __func__, delay_ms);
 534                         break;
 535                 }
 536                 msleep(1);
 537         }
 538
 539         return err;
 540 }
 541
 542 /*  */
 543 /*      Description: */
 544 /*              Enter the leisure power save mode. */
 545 /*  */
 546 void LPS_Enter(struct adapter *padapter, const char *msg)
 547 {
 548         struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
 549         struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(dvobj);
 550         int n_assoc_iface = 0;
 551         char buf[32] = {0};
 552
 553         if (rtw_btcoex_IsBtControlLps(padapter) == true)
 554                 return;
 555
 556         /* Skip lps enter request if number of assocated adapters is not 1 */
 557         if (check_fwstate(&(dvobj->padapters->mlmepriv), WIFI_ASOC_STATE))
 558                 n_assoc_iface++;
 559         if (n_assoc_iface != 1)
 560                 return;
 561
 562         /* Skip lps enter request for adapter not port0 */
 563         if (get_iface_type(padapter) != IFACE_PORT0)
 564                 return;
 565
 566         if (PS_RDY_CHECK(dvobj->padapters) == false)
 567                         return;
 568
 569         if (pwrpriv->bLeisurePs) {
 570                 /*  Idle for a while if we connect to AP a while ago. */
 571                 if (pwrpriv->LpsIdleCount >= 2) { /*   4 Sec */
 572                         if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
 573                                 sprintf(buf, "WIFI-%s", msg);
 574                                 pwrpriv->bpower_saving = true;
 575                                 rtw_set_ps_mode(padapter, pwrpriv->power_mgnt, padapter->registrypriv.smart_ps, 0, buf);
 576                         }
 577                 } else
 578                         pwrpriv->LpsIdleCount++;
 579         }
 580
 581 /*      DBG_871X("-LeisurePSEnter\n"); */
 582 }
 583
 584 /*  */
 585 /*      Description: */
 586 /*              Leave the leisure power save mode. */
 587 /*  */
 588 void LPS_Leave(struct adapter *padapter, const char *msg)
 589 {
 590 #define LPS_LEAVE_TIMEOUT_MS 100
 591
 592         struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
 593         struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(dvobj);
 594         char buf[32] = {0};
 595
 596 /*      DBG_871X("+LeisurePSLeave\n"); */
 597
 598         if (rtw_btcoex_IsBtControlLps(padapter) == true)
 599                 return;
 600
 601         if (pwrpriv->bLeisurePs) {
 602                 if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) {
 603                         sprintf(buf, "WIFI-%s", msg);
 604                         rtw_set_ps_mode(padapter, PS_MODE_ACTIVE, 0, 0, buf);
 605
 606                         if (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
 607                                 LPS_RF_ON_check(padapter, LPS_LEAVE_TIMEOUT_MS);
 608                 }
 609         }
 610
 611         pwrpriv->bpower_saving = false;
 612 /*      DBG_871X("-LeisurePSLeave\n"); */
 613
 614 }
 615
 616 void LeaveAllPowerSaveModeDirect(struct adapter *Adapter)
 617 {
 618         struct adapter *pri_padapter = GET_PRIMARY_ADAPTER(Adapter);
 619         struct mlme_priv *pmlmepriv = &(Adapter->mlmepriv);
 620         struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(Adapter);
 621
 622         DBG_871X("%s.....\n", __func__);
 623
 624         if (true == Adapter->bSurpriseRemoved) {
 625                 DBG_871X(FUNC_ADPT_FMT ": bSurpriseRemoved =%d Skip!\n",
 626                         FUNC_ADPT_ARG(Adapter), Adapter->bSurpriseRemoved);
 627                 return;
 628         }
 629
 630         if ((check_fwstate(pmlmepriv, _FW_LINKED) == true)) { /* connect */
 631
 632                 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
 633                         DBG_871X("%s: Driver Already Leave LPS\n", __func__);
 634                         return;
 635                 }
 636
 637                 down(&pwrpriv->lock);
 638
 639                 rtw_set_rpwm(Adapter, PS_STATE_S4);
 640
 641                 up(&pwrpriv->lock);
 642
 643                 rtw_lps_ctrl_wk_cmd(pri_padapter, LPS_CTRL_LEAVE, 0);
 644         } else{
 645                 if (pwrpriv->rf_pwrstate == rf_off)
 646                         if (false == ips_leave(pri_padapter))
 647                                 DBG_871X("======> ips_leave fail.............\n");
 648         }
 649 }
 650
 651 /*  */
 652 /*  Description: Leave all power save mode: LPS, FwLPS, IPS if needed. */
 653 /*  Move code to function by tynli. 2010.03.26. */
 654 /*  */
 655 void LeaveAllPowerSaveMode(struct adapter *Adapter)
 656 {
 657         struct dvobj_priv *dvobj = adapter_to_dvobj(Adapter);
 658         u8 enqueue = 0;
 659         int n_assoc_iface = 0;
 660
 661         if (!Adapter->bup) {
 662                 DBG_871X(FUNC_ADPT_FMT ": bup =%d Skip!\n",
 663                         FUNC_ADPT_ARG(Adapter), Adapter->bup);
 664                 return;
 665         }
 666
 667         if (Adapter->bSurpriseRemoved) {
 668                 DBG_871X(FUNC_ADPT_FMT ": bSurpriseRemoved =%d Skip!\n",
 669                         FUNC_ADPT_ARG(Adapter), Adapter->bSurpriseRemoved);
 670                 return;
 671         }
 672
 673         if (check_fwstate(&(dvobj->padapters->mlmepriv), WIFI_ASOC_STATE))
 674                 n_assoc_iface++;
 675
 676         if (n_assoc_iface) { /* connect */
 677                 enqueue = 1;
 678
 679                 rtw_lps_ctrl_wk_cmd(Adapter, LPS_CTRL_LEAVE, enqueue);
 680
 681                 LPS_Leave_check(Adapter);
 682         } else {
 683                 if (adapter_to_pwrctl(Adapter)->rf_pwrstate == rf_off) {
 684                         if (false == ips_leave(Adapter))
 685                                 DBG_871X("======> ips_leave fail.............\n");
 686                 }
 687         }
 688 }
 689
 690 void LPS_Leave_check(
 691         struct adapter *padapter)
 692 {
 693         struct pwrctrl_priv *pwrpriv;
 694         unsigned long   start_time;
 695         u8 bReady;
 696
 697         pwrpriv = adapter_to_pwrctl(padapter);
 698
 699         bReady = false;
 700         start_time = jiffies;
 701
 702         yield();
 703
 704         while (1) {
 705                 down(&pwrpriv->lock);
 706
 707                 if ((padapter->bSurpriseRemoved == true)
 708                         || (padapter->hw_init_completed == false)
 709                         || (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
 710                         )
 711                         bReady = true;
 712
 713                 up(&pwrpriv->lock);
 714
 715                 if (true == bReady)
 716                         break;
 717
 718                 if (jiffies_to_msecs(jiffies - start_time) > 100) {
 719                         DBG_871X("Wait for cpwm event  than 100 ms!!!\n");
 720                         break;
 721                 }
 722                 msleep(1);
 723         }
 724 }
 725
 726 /*
 727  * Caller:ISR handler...
 728  *
 729  * This will be called when CPWM interrupt is up.
 730  *
 731  * using to update cpwn of drv; and drv willl make a decision to up or down pwr level
 732  */
 733 void cpwm_int_hdl(
 734         struct adapter *padapter,
 735         struct reportpwrstate_parm *preportpwrstate)
 736 {
 737         struct pwrctrl_priv *pwrpriv;
 738
 739         pwrpriv = adapter_to_pwrctl(padapter);
 740
 741         down(&pwrpriv->lock);
 742
 743         if (pwrpriv->rpwm < PS_STATE_S2) {
 744                 DBG_871X("%s: Redundant CPWM Int. RPWM = 0x%02X CPWM = 0x%02x\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm);
 745                 up(&pwrpriv->lock);
 746                 goto exit;
 747         }
 748
 749         pwrpriv->cpwm = PS_STATE(preportpwrstate->state);
 750         pwrpriv->cpwm_tog = preportpwrstate->state & PS_TOGGLE;
 751
 752         if (pwrpriv->cpwm >= PS_STATE_S2) {
 753                 if (pwrpriv->alives & CMD_ALIVE)
 754                         up(&padapter->cmdpriv.cmd_queue_sema);
 755
 756                 if (pwrpriv->alives & XMIT_ALIVE)
 757                         up(&padapter->xmitpriv.xmit_sema);
 758         }
 759
 760         up(&pwrpriv->lock);
 761
 762 exit:
 763         RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
 764                          ("cpwm_int_hdl: cpwm = 0x%02x\n", pwrpriv->cpwm));
 765 }
 766
 767 static void cpwm_event_callback(struct work_struct *work)
 768 {
 769         struct pwrctrl_priv *pwrpriv = container_of(work, struct pwrctrl_priv, cpwm_event);
 770         struct dvobj_priv *dvobj = pwrctl_to_dvobj(pwrpriv);
 771         struct adapter *adapter = dvobj->if1;
 772         struct reportpwrstate_parm report;
 773
 774         /* DBG_871X("%s\n", __func__); */
 775
 776         report.state = PS_STATE_S2;
 777         cpwm_int_hdl(adapter, &report);
 778 }
 779
 780 static void rpwmtimeout_workitem_callback(struct work_struct *work)
 781 {
 782         struct adapter *padapter;
 783         struct dvobj_priv *dvobj;
 784         struct pwrctrl_priv *pwrpriv;
 785
 786
 787         pwrpriv = container_of(work, struct pwrctrl_priv, rpwmtimeoutwi);
 788         dvobj = pwrctl_to_dvobj(pwrpriv);
 789         padapter = dvobj->if1;
 790 /*      DBG_871X("+%s: rpwm = 0x%02X cpwm = 0x%02X\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm); */
 791
 792         down(&pwrpriv->lock);
 793         if ((pwrpriv->rpwm == pwrpriv->cpwm) || (pwrpriv->cpwm >= PS_STATE_S2)) {
 794                 DBG_871X("%s: rpwm = 0x%02X cpwm = 0x%02X CPWM done!\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm);
 795                 goto exit;
 796         }
 797         up(&pwrpriv->lock);
 798
 799         if (rtw_read8(padapter, 0x100) != 0xEA) {
 800                 struct reportpwrstate_parm report;
 801
 802                 report.state = PS_STATE_S2;
 803                 DBG_871X("\n%s: FW already leave 32K!\n\n", __func__);
 804                 cpwm_int_hdl(padapter, &report);
 805
 806                 return;
 807         }
 808
 809         down(&pwrpriv->lock);
 810
 811         if ((pwrpriv->rpwm == pwrpriv->cpwm) || (pwrpriv->cpwm >= PS_STATE_S2)) {
 812                 DBG_871X("%s: cpwm =%d, nothing to do!\n", __func__, pwrpriv->cpwm);
 813                 goto exit;
 814         }
 815         pwrpriv->brpwmtimeout = true;
 816         rtw_set_rpwm(padapter, pwrpriv->rpwm);
 817         pwrpriv->brpwmtimeout = false;
 818
 819 exit:
 820         up(&pwrpriv->lock);
 821 }
 822
 823 /*
 824  * This function is a timer handler, can't do any IO in it.
 825  */
 826 static void pwr_rpwm_timeout_handler(void *FunctionContext)
 827 {
 828         struct adapter *padapter;
 829         struct pwrctrl_priv *pwrpriv;
 830
 831
 832         padapter = FunctionContext;
 833         pwrpriv = adapter_to_pwrctl(padapter);
 834         DBG_871X("+%s: rpwm = 0x%02X cpwm = 0x%02X\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm);
 835
 836         if ((pwrpriv->rpwm == pwrpriv->cpwm) || (pwrpriv->cpwm >= PS_STATE_S2)) {
 837                 DBG_871X("+%s: cpwm =%d, nothing to do!\n", __func__, pwrpriv->cpwm);
 838                 return;
 839         }
 840
 841         _set_workitem(&pwrpriv->rpwmtimeoutwi);
 842 }
 843
 844 static __inline void register_task_alive(struct pwrctrl_priv *pwrctrl, u32 tag)
 845 {
 846         pwrctrl->alives |= tag;
 847 }
 848
 849 static __inline void unregister_task_alive(struct pwrctrl_priv *pwrctrl, u32 tag)
 850 {
 851         pwrctrl->alives &= ~tag;
 852 }
 853
 854
 855 /*
 856  * Description:
 857  *Check if the fw_pwrstate is okay for I/O.
 858  *If not (cpwm is less than S2), then the sub-routine
 859  *will raise the cpwm to be greater than or equal to S2.
 860  *
 861  *Calling Context: Passive
 862  *
 863  *Constraint:
 864  *      1. this function will request pwrctrl->lock
 865  *
 866  * Return Value:
 867  *_SUCCESS      hardware is ready for I/O
 868  *_FAIL         can't I/O right now
 869  */
 870 s32 rtw_register_task_alive(struct adapter *padapter, u32 task)
 871 {
 872         s32 res;
 873         struct pwrctrl_priv *pwrctrl;
 874         u8 pslv;
 875
 876         res = _SUCCESS;
 877         pwrctrl = adapter_to_pwrctl(padapter);
 878         pslv = PS_STATE_S2;
 879
 880         down(&pwrctrl->lock);
 881
 882         register_task_alive(pwrctrl, task);
 883
 884         if (pwrctrl->bFwCurrentInPSMode == true) {
 885                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
 886                                  ("%s: task = 0x%x cpwm = 0x%02x alives = 0x%08x\n",
 887                                   __func__, task, pwrctrl->cpwm, pwrctrl->alives));
 888
 889                 if (pwrctrl->cpwm < pslv) {
 890                         if (pwrctrl->cpwm < PS_STATE_S2)
 891                                 res = _FAIL;
 892                         if (pwrctrl->rpwm < pslv)
 893                                 rtw_set_rpwm(padapter, pslv);
 894                 }
 895         }
 896
 897         up(&pwrctrl->lock);
 898
 899         if (_FAIL == res)
 900                 if (pwrctrl->cpwm >= PS_STATE_S2)
 901                         res = _SUCCESS;
 902
 903         return res;
 904 }
 905
 906 /*
 907  * Description:
 908  *If task is done, call this func. to power down firmware again.
 909  *
 910  *Constraint:
 911  *      1. this function will request pwrctrl->lock
 912  *
 913  * Return Value:
 914  *none
 915  */
 916 void rtw_unregister_task_alive(struct adapter *padapter, u32 task)
 917 {
 918         struct pwrctrl_priv *pwrctrl;
 919         u8 pslv;
 920
 921         pwrctrl = adapter_to_pwrctl(padapter);
 922         pslv = PS_STATE_S0;
 923
 924         if ((rtw_btcoex_IsBtDisabled(padapter) == false)
 925                 && (rtw_btcoex_IsBtControlLps(padapter) == true)) {
 926                 u8 val8;
 927
 928                 val8 = rtw_btcoex_LpsVal(padapter);
 929                 if (val8 & BIT(4))
 930                         pslv = PS_STATE_S2;
 931         }
 932
 933         down(&pwrctrl->lock);
 934
 935         unregister_task_alive(pwrctrl, task);
 936
 937         if ((pwrctrl->pwr_mode != PS_MODE_ACTIVE)
 938                 && (pwrctrl->bFwCurrentInPSMode == true)) {
 939                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
 940                                  ("%s: cpwm = 0x%02x alives = 0x%08x\n",
 941                                   __func__, pwrctrl->cpwm, pwrctrl->alives));
 942
 943                 if (pwrctrl->cpwm > pslv)
 944                         if ((pslv >= PS_STATE_S2) || (pwrctrl->alives == 0))
 945                                 rtw_set_rpwm(padapter, pslv);
 946
 947         }
 948
 949         up(&pwrctrl->lock);
 950 }
 951
 952 /*
 953  * Caller: rtw_xmit_thread
 954  *
 955  * Check if the fw_pwrstate is okay for xmit.
 956  * If not (cpwm is less than S3), then the sub-routine
 957  * will raise the cpwm to be greater than or equal to S3.
 958  *
 959  * Calling Context: Passive
 960  *
 961  * Return Value:
 962  * _SUCCESS     rtw_xmit_thread can write fifo/txcmd afterwards.
 963  * _FAIL                rtw_xmit_thread can not do anything.
 964  */
 965 s32 rtw_register_tx_alive(struct adapter *padapter)
 966 {
 967         s32 res;
 968         struct pwrctrl_priv *pwrctrl;
 969         u8 pslv;
 970
 971         res = _SUCCESS;
 972         pwrctrl = adapter_to_pwrctl(padapter);
 973         pslv = PS_STATE_S2;
 974
 975         down(&pwrctrl->lock);
 976
 977         register_task_alive(pwrctrl, XMIT_ALIVE);
 978
 979         if (pwrctrl->bFwCurrentInPSMode == true) {
 980                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
 981                                  ("rtw_register_tx_alive: cpwm = 0x%02x alives = 0x%08x\n",
 982                                   pwrctrl->cpwm, pwrctrl->alives));
 983
 984                 if (pwrctrl->cpwm < pslv) {
 985                         if (pwrctrl->cpwm < PS_STATE_S2)
 986                                 res = _FAIL;
 987                         if (pwrctrl->rpwm < pslv)
 988                                 rtw_set_rpwm(padapter, pslv);
 989                 }
 990         }
 991
 992         up(&pwrctrl->lock);
 993
 994         if (_FAIL == res)
 995                 if (pwrctrl->cpwm >= PS_STATE_S2)
 996                         res = _SUCCESS;
 997
 998         return res;
 999 }
1000
1001 /*
1002  * Caller: rtw_cmd_thread
1003  *
1004  * Check if the fw_pwrstate is okay for issuing cmd.
1005  * If not (cpwm should be is less than S2), then the sub-routine
1006  * will raise the cpwm to be greater than or equal to S2.
1007  *
1008  * Calling Context: Passive
1009  *
1010  * Return Value:
1011  *_SUCCESS      rtw_cmd_thread can issue cmds to firmware afterwards.
1012  *_FAIL         rtw_cmd_thread can not do anything.
1013  */
1014 s32 rtw_register_cmd_alive(struct adapter *padapter)
1015 {
1016         s32 res;
1017         struct pwrctrl_priv *pwrctrl;
1018         u8 pslv;
1019
1020         res = _SUCCESS;
1021         pwrctrl = adapter_to_pwrctl(padapter);
1022         pslv = PS_STATE_S2;
1023
1024         down(&pwrctrl->lock);
1025
1026         register_task_alive(pwrctrl, CMD_ALIVE);
1027
1028         if (pwrctrl->bFwCurrentInPSMode == true) {
1029                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_info_,
1030                                  ("rtw_register_cmd_alive: cpwm = 0x%02x alives = 0x%08x\n",
1031                                   pwrctrl->cpwm, pwrctrl->alives));
1032
1033                 if (pwrctrl->cpwm < pslv) {
1034                         if (pwrctrl->cpwm < PS_STATE_S2)
1035                                 res = _FAIL;
1036                         if (pwrctrl->rpwm < pslv)
1037                                 rtw_set_rpwm(padapter, pslv);
1038                 }
1039         }
1040
1041         up(&pwrctrl->lock);
1042
1043         if (_FAIL == res)
1044                 if (pwrctrl->cpwm >= PS_STATE_S2)
1045                         res = _SUCCESS;
1046
1047         return res;
1048 }
1049
1050 /*
1051  * Caller: ISR
1052  *
1053  * If ISR's txdone,
1054  * No more pkts for TX,
1055  * Then driver shall call this fun. to power down firmware again.
1056  */
1057 void rtw_unregister_tx_alive(struct adapter *padapter)
1058 {
1059         struct pwrctrl_priv *pwrctrl;
1060         u8 pslv;
1061
1062         pwrctrl = adapter_to_pwrctl(padapter);
1063         pslv = PS_STATE_S0;
1064
1065         if ((rtw_btcoex_IsBtDisabled(padapter) == false)
1066                 && (rtw_btcoex_IsBtControlLps(padapter) == true)) {
1067                 u8 val8;
1068
1069                 val8 = rtw_btcoex_LpsVal(padapter);
1070                 if (val8 & BIT(4))
1071                         pslv = PS_STATE_S2;
1072         }
1073
1074         down(&pwrctrl->lock);
1075
1076         unregister_task_alive(pwrctrl, XMIT_ALIVE);
1077
1078         if ((pwrctrl->pwr_mode != PS_MODE_ACTIVE)
1079                 && (pwrctrl->bFwCurrentInPSMode == true)) {
1080                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
1081                                  ("%s: cpwm = 0x%02x alives = 0x%08x\n",
1082                                   __func__, pwrctrl->cpwm, pwrctrl->alives));
1083
1084                 if (pwrctrl->cpwm > pslv)
1085                         if ((pslv >= PS_STATE_S2) || (pwrctrl->alives == 0))
1086                                 rtw_set_rpwm(padapter, pslv);
1087         }
1088
1089         up(&pwrctrl->lock);
1090 }
1091
1092 /*
1093  * Caller: ISR
1094  *
1095  * If all commands have been done,
1096  * and no more command to do,
1097  * then driver shall call this fun. to power down firmware again.
1098  */
1099 void rtw_unregister_cmd_alive(struct adapter *padapter)
1100 {
1101         struct pwrctrl_priv *pwrctrl;
1102         u8 pslv;
1103
1104         pwrctrl = adapter_to_pwrctl(padapter);
1105         pslv = PS_STATE_S0;
1106
1107         if ((rtw_btcoex_IsBtDisabled(padapter) == false)
1108                 && (rtw_btcoex_IsBtControlLps(padapter) == true)) {
1109                 u8 val8;
1110
1111                 val8 = rtw_btcoex_LpsVal(padapter);
1112                 if (val8 & BIT(4))
1113                         pslv = PS_STATE_S2;
1114         }
1115
1116         down(&pwrctrl->lock);
1117
1118         unregister_task_alive(pwrctrl, CMD_ALIVE);
1119
1120         if ((pwrctrl->pwr_mode != PS_MODE_ACTIVE)
1121                 && (pwrctrl->bFwCurrentInPSMode == true)) {
1122                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_info_,
1123                                  ("%s: cpwm = 0x%02x alives = 0x%08x\n",
1124                                   __func__, pwrctrl->cpwm, pwrctrl->alives));
1125
1126                 if (pwrctrl->cpwm > pslv) {
1127                         if ((pslv >= PS_STATE_S2) || (pwrctrl->alives == 0))
1128                                 rtw_set_rpwm(padapter, pslv);
1129                 }
1130         }
1131
1132         up(&pwrctrl->lock);
1133 }
1134
1135 void rtw_init_pwrctrl_priv(struct adapter *padapter)
1136 {
1137         struct pwrctrl_priv *pwrctrlpriv = adapter_to_pwrctl(padapter);
1138
1139         sema_init(&pwrctrlpriv->lock, 1);
1140         sema_init(&pwrctrlpriv->check_32k_lock, 1);
1141         pwrctrlpriv->rf_pwrstate = rf_on;
1142         pwrctrlpriv->ips_enter_cnts = 0;
1143         pwrctrlpriv->ips_leave_cnts = 0;
1144         pwrctrlpriv->bips_processing = false;
1145
1146         pwrctrlpriv->ips_mode = padapter->registrypriv.ips_mode;
1147         pwrctrlpriv->ips_mode_req = padapter->registrypriv.ips_mode;
1148
1149         pwrctrlpriv->pwr_state_check_interval = RTW_PWR_STATE_CHK_INTERVAL;
1150         pwrctrlpriv->pwr_state_check_cnts = 0;
1151         pwrctrlpriv->bInternalAutoSuspend = false;
1152         pwrctrlpriv->bInSuspend = false;
1153         pwrctrlpriv->bkeepfwalive = false;
1154
1155         pwrctrlpriv->LpsIdleCount = 0;
1156         pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/*  PS_MODE_MIN; */
1157         pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt)?true:false;
1158
1159         pwrctrlpriv->bFwCurrentInPSMode = false;
1160
1161         pwrctrlpriv->rpwm = 0;
1162         pwrctrlpriv->cpwm = PS_STATE_S4;
1163
1164         pwrctrlpriv->pwr_mode = PS_MODE_ACTIVE;
1165         pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps;
1166         pwrctrlpriv->bcn_ant_mode = 0;
1167         pwrctrlpriv->dtim = 0;
1168
1169         pwrctrlpriv->tog = 0x80;
1170
1171         rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&pwrctrlpriv->rpwm));
1172
1173         _init_workitem(&pwrctrlpriv->cpwm_event, cpwm_event_callback, NULL);
1174
1175         pwrctrlpriv->brpwmtimeout = false;
1176         _init_workitem(&pwrctrlpriv->rpwmtimeoutwi, rpwmtimeout_workitem_callback, NULL);
1177         _init_timer(&pwrctrlpriv->pwr_rpwm_timer, padapter->pnetdev, pwr_rpwm_timeout_handler, padapter);
1178
1179         rtw_init_timer(&pwrctrlpriv->pwr_state_check_timer, padapter, pwr_state_check_handler);
1180
1181         pwrctrlpriv->wowlan_mode = false;
1182         pwrctrlpriv->wowlan_ap_mode = false;
1183
1184 #ifdef CONFIG_PNO_SUPPORT
1185         pwrctrlpriv->pno_inited = false;
1186         pwrctrlpriv->pnlo_info = NULL;
1187         pwrctrlpriv->pscan_info = NULL;
1188         pwrctrlpriv->pno_ssid_list = NULL;
1189         pwrctrlpriv->pno_in_resume = true;
1190 #endif
1191 }
1192
1193
1194 void rtw_free_pwrctrl_priv(struct adapter *adapter)
1195 {
1196         /* memset((unsigned char *)pwrctrlpriv, 0, sizeof(struct pwrctrl_priv)); */
1197
1198 #ifdef CONFIG_PNO_SUPPORT
1199         if (pwrctrlpriv->pnlo_info != NULL)
1200                 printk("****** pnlo_info memory leak********\n");
1201
1202         if (pwrctrlpriv->pscan_info != NULL)
1203                 printk("****** pscan_info memory leak********\n");
1204
1205         if (pwrctrlpriv->pno_ssid_list != NULL)
1206                 printk("****** pno_ssid_list memory leak********\n");
1207 #endif
1208 }
1209
1210 inline void rtw_set_ips_deny(struct adapter *padapter, u32 ms)
1211 {
1212         struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter);
1213         pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ms);
1214 }
1215
1216 /*
1217 * rtw_pwr_wakeup - Wake the NIC up from: 1)IPS. 2)USB autosuspend
1218 * @adapter: pointer to struct adapter structure
1219 * @ips_deffer_ms: the ms wiil prevent from falling into IPS after wakeup
1220 * Return _SUCCESS or _FAIL
1221 */
1222
1223 int _rtw_pwr_wakeup(struct adapter *padapter, u32 ips_deffer_ms, const char *caller)
1224 {
1225         struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
1226         struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(dvobj);
1227         struct mlme_priv *pmlmepriv;
1228         int ret = _SUCCESS;
1229         unsigned long start = jiffies;
1230         unsigned long deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
1231
1232         /* for LPS */
1233         LeaveAllPowerSaveMode(padapter);
1234
1235         /* IPS still bound with primary adapter */
1236         padapter = GET_PRIMARY_ADAPTER(padapter);
1237         pmlmepriv = &padapter->mlmepriv;
1238
1239         if (time_before(pwrpriv->ips_deny_time, deny_time))
1240                 pwrpriv->ips_deny_time = deny_time;
1241
1242
1243         if (pwrpriv->ps_processing) {
1244                 DBG_871X("%s wait ps_processing...\n", __func__);
1245                 while (pwrpriv->ps_processing && jiffies_to_msecs(jiffies - start) <= 3000)
1246                         msleep(10);
1247                 if (pwrpriv->ps_processing)
1248                         DBG_871X("%s wait ps_processing timeout\n", __func__);
1249                 else
1250                         DBG_871X("%s wait ps_processing done\n", __func__);
1251         }
1252
1253         if (pwrpriv->bInternalAutoSuspend == false && pwrpriv->bInSuspend) {
1254                 DBG_871X("%s wait bInSuspend...\n", __func__);
1255                 while (pwrpriv->bInSuspend
1256                         && jiffies_to_msecs(jiffies - start) <= 3000
1257                 ) {
1258                         msleep(10);
1259                 }
1260                 if (pwrpriv->bInSuspend)
1261                         DBG_871X("%s wait bInSuspend timeout\n", __func__);
1262                 else
1263                         DBG_871X("%s wait bInSuspend done\n", __func__);
1264         }
1265
1266         /* System suspend is not allowed to wakeup */
1267         if ((pwrpriv->bInternalAutoSuspend == false) && (true == pwrpriv->bInSuspend)) {
1268                 ret = _FAIL;
1269                 goto exit;
1270         }
1271
1272         /* block??? */
1273         if ((pwrpriv->bInternalAutoSuspend == true)  && (padapter->net_closed == true)) {
1274                 ret = _FAIL;
1275                 goto exit;
1276         }
1277
1278         /* I think this should be check in IPS, LPS, autosuspend functions... */
1279         if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
1280                 ret = _SUCCESS;
1281                 goto exit;
1282         }
1283
1284         if (rf_off == pwrpriv->rf_pwrstate) {
1285                 {
1286                         DBG_8192C("%s call ips_leave....\n", __func__);
1287                         if (_FAIL ==  ips_leave(padapter)) {
1288                                 DBG_8192C("======> ips_leave fail.............\n");
1289                                 ret = _FAIL;
1290                                 goto exit;
1291                         }
1292                 }
1293         }
1294
1295         /* TODO: the following checking need to be merged... */
1296         if (padapter->bDriverStopped
1297                 || !padapter->bup
1298                 || !padapter->hw_init_completed
1299         ) {
1300                 DBG_8192C("%s: bDriverStopped =%d, bup =%d, hw_init_completed =%u\n"
1301                         , caller
1302                         , padapter->bDriverStopped
1303                         , padapter->bup
1304                         , padapter->hw_init_completed);
1305                 ret = false;
1306                 goto exit;
1307         }
1308
1309 exit:
1310         deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
1311         if (time_before(pwrpriv->ips_deny_time, deny_time))
1312                 pwrpriv->ips_deny_time = deny_time;
1313         return ret;
1314
1315 }
1316
1317 int rtw_pm_set_lps(struct adapter *padapter, u8 mode)
1318 {
1319         int     ret = 0;
1320         struct pwrctrl_priv *pwrctrlpriv = adapter_to_pwrctl(padapter);
1321
1322         if (mode < PS_MODE_NUM) {
1323                 if (pwrctrlpriv->power_mgnt != mode) {
1324                         if (PS_MODE_ACTIVE == mode)
1325                                 LeaveAllPowerSaveMode(padapter);
1326                         else
1327                                 pwrctrlpriv->LpsIdleCount = 2;
1328
1329                         pwrctrlpriv->power_mgnt = mode;
1330                         pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt)?true:false;
1331                 }
1332         } else
1333                 ret = -EINVAL;
1334
1335         return ret;
1336 }
1337
1338 int rtw_pm_set_ips(struct adapter *padapter, u8 mode)
1339 {
1340         struct pwrctrl_priv *pwrctrlpriv = adapter_to_pwrctl(padapter);
1341
1342         if (mode == IPS_NORMAL || mode == IPS_LEVEL_2) {
1343                 rtw_ips_mode_req(pwrctrlpriv, mode);
1344                 DBG_871X("%s %s\n", __func__, mode == IPS_NORMAL?"IPS_NORMAL":"IPS_LEVEL_2");
1345                 return 0;
1346         } else if (mode == IPS_NONE) {
1347                 rtw_ips_mode_req(pwrctrlpriv, mode);
1348                 DBG_871X("%s %s\n", __func__, "IPS_NONE");
1349                 if ((padapter->bSurpriseRemoved == 0) && (_FAIL == rtw_pwr_wakeup(padapter)))
1350                         return -EFAULT;
1351         } else
1352                 return -EINVAL;
1353
1354         return 0;
1355 }
1356
1357 /*
1358  * ATTENTION:
1359  *This function will request pwrctrl LOCK!
1360  */
1361 void rtw_ps_deny(struct adapter *padapter, enum PS_DENY_REASON reason)
1362 {
1363         struct pwrctrl_priv *pwrpriv;
1364
1365 /*      DBG_871X("+" FUNC_ADPT_FMT ": Request PS deny for %d (0x%08X)\n", */
1366 /*              FUNC_ADPT_ARG(padapter), reason, BIT(reason)); */
1367
1368         pwrpriv = adapter_to_pwrctl(padapter);
1369
1370         down(&pwrpriv->lock);
1371         if (pwrpriv->ps_deny & BIT(reason)) {
1372                 DBG_871X(FUNC_ADPT_FMT ": [WARNING] Reason %d had been set before!!\n",
1373                         FUNC_ADPT_ARG(padapter), reason);
1374         }
1375         pwrpriv->ps_deny |= BIT(reason);
1376         up(&pwrpriv->lock);
1377
1378 /*      DBG_871X("-" FUNC_ADPT_FMT ": Now PS deny for 0x%08X\n", */
1379 /*              FUNC_ADPT_ARG(padapter), pwrpriv->ps_deny); */
1380 }
1381
1382 /*
1383  * ATTENTION:
1384  *This function will request pwrctrl LOCK!
1385  */
1386 void rtw_ps_deny_cancel(struct adapter *padapter, enum PS_DENY_REASON reason)
1387 {
1388         struct pwrctrl_priv *pwrpriv;
1389
1390
1391 /*      DBG_871X("+" FUNC_ADPT_FMT ": Cancel PS deny for %d(0x%08X)\n", */
1392 /*              FUNC_ADPT_ARG(padapter), reason, BIT(reason)); */
1393
1394         pwrpriv = adapter_to_pwrctl(padapter);
1395
1396         down(&pwrpriv->lock);
1397         if ((pwrpriv->ps_deny & BIT(reason)) == 0) {
1398                 DBG_871X(FUNC_ADPT_FMT ": [ERROR] Reason %d had been canceled before!!\n",
1399                         FUNC_ADPT_ARG(padapter), reason);
1400         }
1401         pwrpriv->ps_deny &= ~BIT(reason);
1402         up(&pwrpriv->lock);
1403
1404 /*      DBG_871X("-" FUNC_ADPT_FMT ": Now PS deny for 0x%08X\n", */
1405 /*              FUNC_ADPT_ARG(padapter), pwrpriv->ps_deny); */
1406 }
1407
1408 /*
1409  * ATTENTION:
1410  *Before calling this function pwrctrl lock should be occupied already,
1411  *otherwise it may return incorrect value.
1412  */
1413 u32 rtw_ps_deny_get(struct adapter *padapter)
1414 {
1415         u32 deny;
1416
1417
1418         deny = adapter_to_pwrctl(padapter)->ps_deny;
1419
1420         return deny;
1421 }