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 #include <rtl8723a_cmd.h>
  21 #include <rtw_sreset.h>
  22
  23 #include <rtl8723a_bt_intf.h>
  24 #include <usb_ops_linux.h>
  25
  26 void ips_enter23a(struct rtw_adapter *padapter)
  27 {
  28         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
  29
  30         down(&pwrpriv->lock);
  31
  32         pwrpriv->bips_processing = true;
  33
  34         /*  syn ips_mode with request */
  35         pwrpriv->ips_mode = pwrpriv->ips_mode_req;
  36
  37         pwrpriv->ips_enter23a_cnts++;
  38         DBG_8723A("==>ips_enter23a cnts:%d\n", pwrpriv->ips_enter23a_cnts);
  39         rtl8723a_BT_disable_coexist(padapter);
  40
  41         if (pwrpriv->change_rfpwrstate == rf_off) {
  42                 pwrpriv->bpower_saving = true;
  43                 DBG_8723A_LEVEL(_drv_always_, "nolinked power save enter\n");
  44
  45                 if (pwrpriv->ips_mode == IPS_LEVEL_2)
  46                         pwrpriv->bkeepfwalive = true;
  47
  48                 rtw_ips_pwr_down23a(padapter);
  49                 pwrpriv->rf_pwrstate = rf_off;
  50         }
  51         pwrpriv->bips_processing = false;
  52
  53         up(&pwrpriv->lock);
  54 }
  55
  56 int ips_leave23a(struct rtw_adapter *padapter)
  57 {
  58         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
  59         struct security_priv *psecuritypriv = &padapter->securitypriv;
  60         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
  61         int result = _SUCCESS;
  62         int keyid;
  63
  64         down(&pwrpriv->lock);
  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_leave23a_cnts++;
  70                 DBG_8723A("==>ips_leave23a cnts:%d\n",
  71                           pwrpriv->ips_leave23a_cnts);
  72
  73                 result = rtw_ips_pwr_up23a(padapter);
  74                 if (result == _SUCCESS)
  75                         pwrpriv->rf_pwrstate = rf_on;
  76
  77                 DBG_8723A_LEVEL(_drv_always_, "nolinked power save leave\n");
  78
  79                 if (psecuritypriv->dot11PrivacyAlgrthm ==
  80                     WLAN_CIPHER_SUITE_WEP40 ||
  81                     psecuritypriv->dot11PrivacyAlgrthm ==
  82                     WLAN_CIPHER_SUITE_WEP104) {
  83                         DBG_8723A("==>%s, channel(%d), processing(%x)\n",
  84                                   __func__, padapter->mlmeextpriv.cur_channel,
  85                                   pwrpriv->bips_processing);
  86                         set_channel_bwmode23a(padapter,
  87                                               padapter->mlmeextpriv.cur_channel,
  88                                               HAL_PRIME_CHNL_OFFSET_DONT_CARE,
  89                                               HT_CHANNEL_WIDTH_20);
  90                         for (keyid = 0; keyid < 4; keyid++) {
  91                                 if (pmlmepriv->key_mask & BIT(keyid)) {
  92                                         if (keyid ==
  93                                             psecuritypriv->dot11PrivacyKeyIndex)
  94                                                 result = rtw_set_key23a(padapter, psecuritypriv, keyid, 1);
  95                                         else
  96                                                 result = rtw_set_key23a(padapter, psecuritypriv, keyid, 0);
  97                                 }
  98                         }
  99                 }
 100
 101                 DBG_8723A("==> ips_leave23a.....LED(0x%08x)...\n",
 102                           rtl8723au_read32(padapter, 0x4c));
 103                 pwrpriv->bips_processing = false;
 104
 105                 pwrpriv->bkeepfwalive = false;
 106                 pwrpriv->bpower_saving = false;
 107         }
 108
 109         up(&pwrpriv->lock);
 110
 111         return result;
 112 }
 113
 114
 115 static bool rtw_pwr_unassociated_idle(struct rtw_adapter *adapter)
 116 {
 117         struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
 118         struct xmit_priv *pxmit_priv = &adapter->xmitpriv;
 119
 120         bool ret = false;
 121
 122         if (time_after_eq(adapter->pwrctrlpriv.ips_deny_time, jiffies))
 123                 goto exit;
 124
 125         if (check_fwstate(pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR) ||
 126             check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS) ||
 127             check_fwstate(pmlmepriv, WIFI_AP_STATE) ||
 128             check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE)){
 129                 goto exit;
 130         }
 131
 132         if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF ||
 133                 pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF) {
 134                 DBG_8723A_LEVEL(_drv_always_,
 135                                 "There are some pkts to transmit\n");
 136                 DBG_8723A_LEVEL(_drv_info_, "free_xmitbuf_cnt: %d, "
 137                                 "free_xmit_extbuf_cnt: %d\n",
 138                                 pxmit_priv->free_xmitbuf_cnt,
 139                                 pxmit_priv->free_xmit_extbuf_cnt);
 140                 goto exit;
 141         }
 142
 143         ret = true;
 144
 145 exit:
 146         return ret;
 147 }
 148
 149 void rtw_ps_processor23a(struct rtw_adapter *padapter)
 150 {
 151         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 152         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 153
 154         pwrpriv->ps_processing = true;
 155
 156         if (pwrpriv->bips_processing == true)
 157                 goto exit;
 158
 159         if (pwrpriv->ips_mode_req == IPS_NONE)
 160                 goto exit;
 161
 162         if (rtw_pwr_unassociated_idle(padapter) == false)
 163                 goto exit;
 164
 165         if (pwrpriv->rf_pwrstate == rf_on &&
 166             (pwrpriv->pwr_state_check_cnts % 4) == 0) {
 167                 DBG_8723A("==>%s .fw_state(%x)\n", __func__,
 168                           get_fwstate(pmlmepriv));
 169                 pwrpriv->change_rfpwrstate = rf_off;
 170                 ips_enter23a(padapter);
 171         }
 172 exit:
 173         rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv);
 174         pwrpriv->ps_processing = false;
 175         return;
 176 }
 177
 178 static void pwr_state_check_handler(unsigned long data)
 179 {
 180         struct rtw_adapter *padapter = (struct rtw_adapter *)data;
 181         rtw_ps_cmd23a(padapter);
 182 }
 183
 184 /*
 185  *
 186  * Parameters
 187  *   padapter
 188  *   pslv       power state level, only could be PS_STATE_S0 ~ PS_STATE_S4
 189  *
 190  */
 191 void rtw_set_rpwm23a(struct rtw_adapter *padapter, u8 pslv)
 192 {
 193         u8 rpwm;
 194         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 195
 196         pslv = PS_STATE(pslv);
 197
 198         if (pwrpriv->btcoex_rfon) {
 199                 if (pslv < PS_STATE_S4)
 200                         pslv = PS_STATE_S3;
 201         }
 202
 203         if (pwrpriv->rpwm == pslv) {
 204                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
 205                         ("%s: Already set rpwm[0x%02X], new = 0x%02X!\n",
 206                          __func__, pwrpriv->rpwm, pslv));
 207                 return;
 208         }
 209
 210         if (padapter->bSurpriseRemoved == true ||
 211             padapter->hw_init_completed == false) {
 212                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
 213                          ("%s: SurpriseRemoved(%d) hw_init_completed(%d)\n",
 214                           __func__, padapter->bSurpriseRemoved,
 215                           padapter->hw_init_completed));
 216
 217                 pwrpriv->cpwm = PS_STATE_S4;
 218
 219                 return;
 220         }
 221
 222         if (padapter->bDriverStopped == true) {
 223                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
 224                          ("%s: change power state(0x%02X) when DriverStopped\n",
 225                           __func__, pslv));
 226
 227                 if (pslv < PS_STATE_S2) {
 228                         RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
 229                                  ("%s: Reject to enter PS_STATE(0x%02X) lower "
 230                                   "than S2 when DriverStopped!!\n",
 231                                   __func__, pslv));
 232                         return;
 233                 }
 234         }
 235
 236         rpwm = pslv | pwrpriv->tog;
 237         RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
 238                  ("rtw_set_rpwm23a: rpwm = 0x%02x cpwm = 0x%02x\n",
 239                   rpwm, pwrpriv->cpwm));
 240
 241         pwrpriv->rpwm = pslv;
 242
 243         rtl8723a_set_rpwm(padapter, rpwm);
 244
 245         pwrpriv->tog += 0x80;
 246         pwrpriv->cpwm = pslv;
 247 }
 248
 249 static bool PS_RDY_CHECK(struct rtw_adapter *padapter)
 250 {
 251         unsigned long delta_time;
 252         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 253         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 254
 255         delta_time = jiffies - pwrpriv->DelayLPSLastTimeStamp;
 256
 257         if (delta_time < LPS_DELAY_TIME)
 258                 return false;
 259
 260         if (!check_fwstate(pmlmepriv, _FW_LINKED) ||
 261             check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) ||
 262             check_fwstate(pmlmepriv, WIFI_AP_STATE) ||
 263             check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
 264             check_fwstate(pmlmepriv, WIFI_ADHOC_STATE))
 265                 return false;
 266         if (pwrpriv->bInSuspend)
 267                 return false;
 268         if (padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X &&
 269             !padapter->securitypriv.binstallGrpkey) {
 270                 DBG_8723A("Group handshake still in progress !!!\n");
 271                 return false;
 272         }
 273         if (!rtw_cfg80211_pwr_mgmt(padapter))
 274                 return false;
 275
 276         return true;
 277 }
 278
 279 void rtw_set_ps_mode23a(struct rtw_adapter *padapter, u8 ps_mode,
 280                         u8 smart_ps, u8 bcn_ant_mode)
 281 {
 282         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 283
 284         RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
 285                          ("%s: PowerMode =%d Smart_PS =%d\n",
 286                           __func__, ps_mode, smart_ps));
 287
 288         if (ps_mode > PM_Card_Disable) {
 289                 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
 290                          ("ps_mode:%d error\n", ps_mode));
 291                 return;
 292         }
 293
 294         if (pwrpriv->pwr_mode == ps_mode) {
 295                 if (PS_MODE_ACTIVE == ps_mode)
 296                         return;
 297
 298                 if (pwrpriv->smart_ps == smart_ps &&
 299                     pwrpriv->bcn_ant_mode == bcn_ant_mode)
 300                         return;
 301         }
 302
 303         if (ps_mode == PS_MODE_ACTIVE) {
 304                 DBG_8723A("rtw_set_ps_mode23a: Leave 802.11 power save\n");
 305
 306                 pwrpriv->pwr_mode = ps_mode;
 307                 rtw_set_rpwm23a(padapter, PS_STATE_S4);
 308                 rtl8723a_set_FwPwrMode_cmd(padapter, ps_mode);
 309                 pwrpriv->bFwCurrentInPSMode = false;
 310         } else {
 311                 if (PS_RDY_CHECK(padapter) ||
 312                     rtl8723a_BT_using_antenna_1(padapter)) {
 313                         DBG_8723A("%s: Enter 802.11 power save\n", __func__);
 314
 315                         pwrpriv->bFwCurrentInPSMode = true;
 316                         pwrpriv->pwr_mode = ps_mode;
 317                         pwrpriv->smart_ps = smart_ps;
 318                         pwrpriv->bcn_ant_mode = bcn_ant_mode;
 319                         rtl8723a_set_FwPwrMode_cmd(padapter, ps_mode);
 320
 321                         rtw_set_rpwm23a(padapter, PS_STATE_S2);
 322                 }
 323         }
 324 }
 325
 326 /*
 327  * Return:
 328  *      0:      Leave OK
 329  *      -1:     Timeout
 330  *      -2:     Other error
 331  */
 332 s32 LPS_RF_ON_check23a(struct rtw_adapter *padapter, u32 delay_ms)
 333 {
 334         unsigned long start_time, end_time;
 335         u8 bAwake = false;
 336         s32 err = 0;
 337
 338         start_time = jiffies;
 339         end_time = start_time + msecs_to_jiffies(delay_ms);
 340
 341         while (1)
 342         {
 343                 bAwake = rtl8723a_get_fwlps_rf_on(padapter);
 344                 if (bAwake == true)
 345                         break;
 346
 347                 if (padapter->bSurpriseRemoved == true) {
 348                         err = -2;
 349                         DBG_8723A("%s: device surprise removed!!\n", __func__);
 350                         break;
 351                 }
 352
 353                 if (time_after(jiffies, end_time)) {
 354                         err = -1;
 355                         DBG_8723A("%s: Wait for FW LPS leave more than %u "
 356                                   "ms!\n", __func__, delay_ms);
 357                         break;
 358                 }
 359                 udelay(100);
 360         }
 361
 362         return err;
 363 }
 364
 365 /*      Description: */
 366 /*              Enter the leisure power save mode. */
 367 void LPS_Enter23a(struct rtw_adapter *padapter)
 368 {
 369         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 370
 371         if (!PS_RDY_CHECK(padapter))
 372                 return;
 373
 374         if (pwrpriv->bLeisurePs) {
 375                 /*  Idle for a while if we connect to AP a while ago. */
 376                 if (pwrpriv->LpsIdleCount >= 2) { /*   4 Sec */
 377                         if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
 378                                 pwrpriv->bpower_saving = true;
 379                                 DBG_8723A("%s smart_ps:%d\n", __func__,
 380                                           pwrpriv->smart_ps);
 381                                 /* For Tenda W311R IOT issue */
 382                                 rtw_set_ps_mode23a(padapter,
 383                                                    pwrpriv->power_mgnt,
 384                                                    pwrpriv->smart_ps, 0);
 385                         }
 386                 } else
 387                         pwrpriv->LpsIdleCount++;
 388         }
 389 }
 390
 391 /*      Description: */
 392 /*              Leave the leisure power save mode. */
 393 void LPS_Leave23a(struct rtw_adapter *padapter)
 394 {
 395 #define LPS_LEAVE_TIMEOUT_MS 100
 396
 397         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 398
 399         if (pwrpriv->bLeisurePs) {
 400                 if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) {
 401                         rtw_set_ps_mode23a(padapter, PS_MODE_ACTIVE, 0, 0);
 402
 403                         if (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
 404                                 LPS_RF_ON_check23a(padapter,
 405                                                    LPS_LEAVE_TIMEOUT_MS);
 406                 }
 407         }
 408
 409         pwrpriv->bpower_saving = false;
 410 }
 411
 412 /*  Description: Leave all power save mode: LPS, FwLPS, IPS if needed. */
 413 /*  Move code to function by tynli. 2010.03.26. */
 414 void LeaveAllPowerSaveMode23a(struct rtw_adapter *Adapter)
 415 {
 416         struct mlme_priv *pmlmepriv = &Adapter->mlmepriv;
 417         u8 enqueue = 0;
 418
 419         /* DBG_8723A("%s.....\n", __func__); */
 420         if (check_fwstate(pmlmepriv, _FW_LINKED))
 421                 rtw_lps_ctrl_wk_cmd23a(Adapter, LPS_CTRL_LEAVE, enqueue);
 422 }
 423
 424 void rtw_init_pwrctrl_priv23a(struct rtw_adapter *padapter)
 425 {
 426         struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
 427
 428         sema_init(&pwrctrlpriv->lock, 1);
 429         pwrctrlpriv->rf_pwrstate = rf_on;
 430         pwrctrlpriv->ips_enter23a_cnts = 0;
 431         pwrctrlpriv->ips_leave23a_cnts = 0;
 432         pwrctrlpriv->bips_processing = false;
 433
 434         pwrctrlpriv->ips_mode = padapter->registrypriv.ips_mode;
 435         pwrctrlpriv->ips_mode_req = padapter->registrypriv.ips_mode;
 436
 437         pwrctrlpriv->pwr_state_check_interval = RTW_PWR_STATE_CHK_INTERVAL;
 438         pwrctrlpriv->pwr_state_check_cnts = 0;
 439         pwrctrlpriv->bInSuspend = false;
 440         pwrctrlpriv->bkeepfwalive = false;
 441
 442         pwrctrlpriv->LpsIdleCount = 0;
 443
 444         /*  PS_MODE_MIN; */
 445         pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;
 446         pwrctrlpriv->bLeisurePs =
 447                 (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt)?true:false;
 448
 449         pwrctrlpriv->bFwCurrentInPSMode = false;
 450
 451         pwrctrlpriv->rpwm = 0;
 452         pwrctrlpriv->cpwm = PS_STATE_S4;
 453
 454         pwrctrlpriv->pwr_mode = PS_MODE_ACTIVE;
 455         pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps;
 456         pwrctrlpriv->bcn_ant_mode = 0;
 457
 458         pwrctrlpriv->tog = 0x80;
 459
 460         pwrctrlpriv->btcoex_rfon = false;
 461
 462         setup_timer(&pwrctrlpriv->pwr_state_check_timer,
 463                     pwr_state_check_handler, (unsigned long)padapter);
 464 }
 465
 466 void rtw_free_pwrctrl_priv(struct rtw_adapter *adapter)
 467 {
 468 }
 469
 470 inline void rtw_set_ips_deny23a(struct rtw_adapter *padapter, u32 ms)
 471 {
 472         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 473         pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ms);
 474 }
 475
 476 /*
 477 * rtw_pwr_wakeup - Wake the NIC up from: 1)IPS. 2)USB autosuspend
 478 * @adapter: pointer to _adapter structure
 479 * @ips_deffer_ms: the ms will prevent from falling into IPS after wakeup
 480 * Return _SUCCESS or _FAIL
 481 */
 482
 483 int _rtw_pwr_wakeup23a(struct rtw_adapter *padapter, u32 ips_deffer_ms, const char *caller)
 484 {
 485         struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
 486         struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 487         int ret = _SUCCESS;
 488         unsigned long start = jiffies;
 489         unsigned long new_deny_time;
 490
 491         new_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
 492
 493         if (time_before(pwrpriv->ips_deny_time, new_deny_time))
 494                 pwrpriv->ips_deny_time = new_deny_time;
 495
 496         if (pwrpriv->ps_processing) {
 497                 DBG_8723A("%s wait ps_processing...\n", __func__);
 498                 while (pwrpriv->ps_processing &&
 499                        jiffies_to_msecs(jiffies - start) <= 3000)
 500                         msleep(10);
 501                 if (pwrpriv->ps_processing)
 502                         DBG_8723A("%s wait ps_processing timeout\n", __func__);
 503                 else
 504                         DBG_8723A("%s wait ps_processing done\n", __func__);
 505         }
 506
 507         if (rtw_sreset_inprogress(padapter)) {
 508                 DBG_8723A("%s wait sreset_inprogress...\n", __func__);
 509                 while (rtw_sreset_inprogress(padapter) &&
 510                        jiffies_to_msecs(jiffies - start) <= 4000)
 511                         msleep(10);
 512                 if (rtw_sreset_inprogress(padapter))
 513                         DBG_8723A("%s wait sreset_inprogress timeout\n",
 514                                   __func__);
 515                 else
 516                         DBG_8723A("%s wait sreset_inprogress done\n", __func__);
 517         }
 518
 519         if (pwrpriv->bInSuspend) {
 520                 DBG_8723A("%s wait bInSuspend...\n", __func__);
 521                 while (pwrpriv->bInSuspend &&
 522                        (jiffies_to_msecs(jiffies - start) <= 3000)) {
 523                         msleep(10);
 524                 }
 525                 if (pwrpriv->bInSuspend)
 526                         DBG_8723A("%s wait bInSuspend timeout\n", __func__);
 527                 else
 528                         DBG_8723A("%s wait bInSuspend done\n", __func__);
 529         }
 530
 531         /* System suspend is not allowed to wakeup */
 532         if (pwrpriv->bInSuspend) {
 533                 ret = _FAIL;
 534                 goto exit;
 535         }
 536
 537         /* I think this should be check in IPS, LPS, autosuspend functions... */
 538         if (check_fwstate(pmlmepriv, _FW_LINKED)) {
 539                 ret = _SUCCESS;
 540                 goto exit;
 541         }
 542
 543         if (rf_off == pwrpriv->rf_pwrstate) {
 544                 DBG_8723A("%s call ips_leave23a....\n", __func__);
 545                 if (ips_leave23a(padapter)== _FAIL) {
 546                         DBG_8723A("======> ips_leave23a fail.............\n");
 547                         ret = _FAIL;
 548                         goto exit;
 549                 }
 550         }
 551
 552         /* TODO: the following checking need to be merged... */
 553         if (padapter->bDriverStopped || !padapter->bup ||
 554             !padapter->hw_init_completed) {
 555                 DBG_8723A("%s: bDriverStopped =%d, bup =%d, hw_init_completed "
 556                           "=%u\n", caller, padapter->bDriverStopped,
 557                           padapter->bup, padapter->hw_init_completed);
 558                 ret = _FAIL;
 559                 goto exit;
 560         }
 561
 562 exit:
 563         new_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
 564         if (time_before(pwrpriv->ips_deny_time, new_deny_time))
 565                 pwrpriv->ips_deny_time = new_deny_time;
 566         return ret;
 567 }
 568
 569 int rtw_pm_set_lps23a(struct rtw_adapter *padapter, u8 mode)
 570 {
 571         int ret = 0;
 572         struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
 573
 574         if (mode < PS_MODE_NUM) {
 575                 if (pwrctrlpriv->power_mgnt != mode) {
 576                         if (PS_MODE_ACTIVE == mode)
 577                                 LeaveAllPowerSaveMode23a(padapter);
 578                         else
 579                                 pwrctrlpriv->LpsIdleCount = 2;
 580                         pwrctrlpriv->power_mgnt = mode;
 581                         pwrctrlpriv->bLeisurePs =
 582                                 (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ?
 583                                 true:false;
 584                 }
 585         } else
 586                 ret = -EINVAL;
 587
 588         return ret;
 589 }
 590
 591 int rtw_pm_set_ips23a(struct rtw_adapter *padapter, u8 mode)
 592 {
 593         struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
 594
 595         if (mode != IPS_NORMAL && mode != IPS_LEVEL_2 && mode != IPS_NONE)
 596                 return -EINVAL;
 597
 598         pwrctrlpriv->ips_mode_req = mode;
 599         if (mode == IPS_NONE) {
 600                 DBG_8723A("%s %s\n", __func__, "IPS_NONE");
 601                 if (padapter->bSurpriseRemoved == 0 &&
 602                     rtw_pwr_wakeup(padapter) == _FAIL)
 603                         return -EFAULT;
 604         }
 605
 606         return 0;
 607 }