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 * You should have received a copy of the GNU General Public License along with 15 * this program; if not, write to the Free Software Foundation, Inc., 16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA 17 * 18 * 19 ******************************************************************************/ 20#define _RTW_PWRCTRL_C_ 21 22#include <osdep_service.h> 23#include <drv_types.h> 24#include <osdep_intf.h> 25#include <usb_ops_linux.h> 26#include <linux/usb.h> 27 28static int rtw_hw_suspend(struct adapter *padapter) 29{ 30 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; 31 struct net_device *pnetdev = padapter->pnetdev; 32 33 34 if ((!padapter->bup) || (padapter->bDriverStopped) || 35 (padapter->bSurpriseRemoved)) { 36 DBG_88E("padapter->bup=%d bDriverStopped=%d bSurpriseRemoved = %d\n", 37 padapter->bup, padapter->bDriverStopped, 38 padapter->bSurpriseRemoved); 39 goto error_exit; 40 } 41 42 /* system suspend */ 43 LeaveAllPowerSaveMode(padapter); 44 45 DBG_88E("==> rtw_hw_suspend\n"); 46 _enter_pwrlock(&pwrpriv->lock); 47 pwrpriv->bips_processing = true; 48 /* s1. */ 49 if (pnetdev) { 50 netif_carrier_off(pnetdev); 51 netif_tx_stop_all_queues(pnetdev); 52 } 53 54 /* s2. */ 55 rtw_disassoc_cmd(padapter, 500, false); 56 57 /* s2-2. indicate disconnect to os */ 58 { 59 struct mlme_priv *pmlmepriv = &padapter->mlmepriv; 60 61 if (check_fwstate(pmlmepriv, _FW_LINKED)) { 62 _clr_fwstate_(pmlmepriv, _FW_LINKED); 63 64 rtw_led_control(padapter, LED_CTL_NO_LINK); 65 66 rtw_os_indicate_disconnect(padapter); 67 68 /* donnot enqueue cmd */ 69 rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 0); 70 } 71 } 72 /* s2-3. */ 73 rtw_free_assoc_resources(padapter, 1); 74 75 /* s2-4. */ 76 rtw_free_network_queue(padapter, true); 77 rtw_ips_dev_unload(padapter); 78 pwrpriv->rf_pwrstate = rf_off; 79 pwrpriv->bips_processing = false; 80 81 _exit_pwrlock(&pwrpriv->lock); 82 83 return 0; 84 85error_exit: 86 DBG_88E("%s, failed\n", __func__); 87 return -1; 88} 89 90static int rtw_hw_resume(struct adapter *padapter) 91{ 92 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; 93 struct net_device *pnetdev = padapter->pnetdev; 94 95 96 /* system resume */ 97 DBG_88E("==> rtw_hw_resume\n"); 98 _enter_pwrlock(&pwrpriv->lock); 99 pwrpriv->bips_processing = true; 100 rtw_reset_drv_sw(padapter); 101 102 if (pm_netdev_open(pnetdev, false) != 0) { 103 _exit_pwrlock(&pwrpriv->lock); 104 goto error_exit; 105 } 106 107 netif_device_attach(pnetdev); 108 netif_carrier_on(pnetdev); 109 110 if (!netif_queue_stopped(pnetdev)) 111 netif_start_queue(pnetdev); 112 else 113 netif_wake_queue(pnetdev); 114 115 pwrpriv->bkeepfwalive = false; 116 pwrpriv->brfoffbyhw = false; 117 118 pwrpriv->rf_pwrstate = rf_on; 119 pwrpriv->bips_processing = false; 120 121 _exit_pwrlock(&pwrpriv->lock); 122 123 124 return 0; 125error_exit: 126 DBG_88E("%s, Open net dev failed\n", __func__); 127 return -1; 128} 129 130void ips_enter(struct adapter *padapter) 131{ 132 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; 133 struct xmit_priv *pxmit_priv = &padapter->xmitpriv; 134 135 if (padapter->registrypriv.mp_mode == 1) 136 return; 137 138 if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF || 139 pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF) { 140 DBG_88E_LEVEL(_drv_info_, "There are some pkts to transmit\n"); 141 DBG_88E_LEVEL(_drv_info_, "free_xmitbuf_cnt: %d, free_xmit_extbuf_cnt: %d\n", 142 pxmit_priv->free_xmitbuf_cnt, pxmit_priv->free_xmit_extbuf_cnt); 143 return; 144 } 145 146 _enter_pwrlock(&pwrpriv->lock); 147 148 pwrpriv->bips_processing = true; 149 150 /* syn ips_mode with request */ 151 pwrpriv->ips_mode = pwrpriv->ips_mode_req; 152 153 pwrpriv->ips_enter_cnts++; 154 DBG_88E("==>ips_enter cnts:%d\n", pwrpriv->ips_enter_cnts); 155 if (rf_off == pwrpriv->change_rfpwrstate) { 156 pwrpriv->bpower_saving = true; 157 DBG_88E_LEVEL(_drv_info_, "nolinked power save enter\n"); 158 159 if (pwrpriv->ips_mode == IPS_LEVEL_2) 160 pwrpriv->bkeepfwalive = true; 161 162 rtw_ips_pwr_down(padapter); 163 pwrpriv->rf_pwrstate = rf_off; 164 } 165 pwrpriv->bips_processing = false; 166 167 _exit_pwrlock(&pwrpriv->lock); 168} 169 170int ips_leave(struct adapter *padapter) 171{ 172 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; 173 struct security_priv *psecuritypriv = &(padapter->securitypriv); 174 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv); 175 int result = _SUCCESS; 176 int keyid; 177 178 179 _enter_pwrlock(&pwrpriv->lock); 180 181 if ((pwrpriv->rf_pwrstate == rf_off) && (!pwrpriv->bips_processing)) { 182 pwrpriv->bips_processing = true; 183 pwrpriv->change_rfpwrstate = rf_on; 184 pwrpriv->ips_leave_cnts++; 185 DBG_88E("==>ips_leave cnts:%d\n", pwrpriv->ips_leave_cnts); 186 187 result = rtw_ips_pwr_up(padapter); 188 if (result == _SUCCESS) { 189 pwrpriv->rf_pwrstate = rf_on; 190 } 191 DBG_88E_LEVEL(_drv_info_, "nolinked power save leave\n"); 192 193 if ((_WEP40_ == psecuritypriv->dot11PrivacyAlgrthm) || (_WEP104_ == psecuritypriv->dot11PrivacyAlgrthm)) { 194 DBG_88E("==>%s, channel(%d), processing(%x)\n", __func__, padapter->mlmeextpriv.cur_channel, pwrpriv->bips_processing); 195 set_channel_bwmode(padapter, padapter->mlmeextpriv.cur_channel, HAL_PRIME_CHNL_OFFSET_DONT_CARE, HT_CHANNEL_WIDTH_20); 196 for (keyid = 0; keyid < 4; keyid++) { 197 if (pmlmepriv->key_mask & BIT(keyid)) { 198 if (keyid == psecuritypriv->dot11PrivacyKeyIndex) 199 result = rtw_set_key(padapter, psecuritypriv, keyid, 1); 200 else 201 result = rtw_set_key(padapter, psecuritypriv, keyid, 0); 202 } 203 } 204 } 205 206 DBG_88E("==> ips_leave.....LED(0x%08x)...\n", usb_read32(padapter, 0x4c)); 207 pwrpriv->bips_processing = false; 208 209 pwrpriv->bkeepfwalive = false; 210 pwrpriv->bpower_saving = false; 211 } 212 213 _exit_pwrlock(&pwrpriv->lock); 214 215 return result; 216} 217 218static bool rtw_pwr_unassociated_idle(struct adapter *adapter) 219{ 220 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv); 221 bool ret = false; 222 223 if (time_after_eq(adapter->pwrctrlpriv.ips_deny_time, jiffies)) 224 goto exit; 225 226 if (check_fwstate(pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR) || 227 check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS) || 228 check_fwstate(pmlmepriv, WIFI_AP_STATE) || 229 check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE)) 230 goto exit; 231 232 ret = true; 233 234exit: 235 return ret; 236} 237 238void rtw_ps_processor(struct adapter *padapter) 239{ 240 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; 241 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv); 242 enum rt_rf_power_state rfpwrstate; 243 244 pwrpriv->ps_processing = true; 245 246 if (pwrpriv->bips_processing) 247 goto exit; 248 249 if (padapter->pwrctrlpriv.bHWPwrPindetect) { 250 rfpwrstate = RfOnOffDetect(padapter); 251 DBG_88E("@@@@- #2 %s==> rfstate:%s\n", __func__, (rfpwrstate == rf_on) ? "rf_on" : "rf_off"); 252 253 if (rfpwrstate != pwrpriv->rf_pwrstate) { 254 if (rfpwrstate == rf_off) { 255 pwrpriv->change_rfpwrstate = rf_off; 256 pwrpriv->brfoffbyhw = true; 257 rtw_hw_suspend(padapter); 258 } else { 259 pwrpriv->change_rfpwrstate = rf_on; 260 rtw_hw_resume(padapter); 261 } 262 DBG_88E("current rf_pwrstate(%s)\n", (pwrpriv->rf_pwrstate == rf_off) ? "rf_off" : "rf_on"); 263 } 264 pwrpriv->pwr_state_check_cnts++; 265 } 266 267 if (pwrpriv->ips_mode_req == IPS_NONE) 268 goto exit; 269 270 if (!rtw_pwr_unassociated_idle(padapter)) 271 goto exit; 272 273 if ((pwrpriv->rf_pwrstate == rf_on) && ((pwrpriv->pwr_state_check_cnts%4) == 0)) { 274 DBG_88E("==>%s .fw_state(%x)\n", __func__, get_fwstate(pmlmepriv)); 275 pwrpriv->change_rfpwrstate = rf_off; 276 277 ips_enter(padapter); 278 } 279exit: 280 rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv); 281 pwrpriv->ps_processing = false; 282 return; 283} 284 285static void pwr_state_check_handler(void *FunctionContext) 286{ 287 struct adapter *padapter = (struct adapter *)FunctionContext; 288 rtw_ps_cmd(padapter); 289} 290 291/* 292 * 293 * Parameters 294 * padapter 295 * pslv power state level, only could be PS_STATE_S0 ~ PS_STATE_S4 296 * 297 */ 298void rtw_set_rpwm(struct adapter *padapter, u8 pslv) 299{ 300 u8 rpwm; 301 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; 302 303 pslv = PS_STATE(pslv); 304 305 if (pwrpriv->btcoex_rfon) { 306 if (pslv < PS_STATE_S4) 307 pslv = PS_STATE_S3; 308 } 309 310 if ((pwrpriv->rpwm == pslv)) { 311 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, 312 ("%s: Already set rpwm[0x%02X], new=0x%02X!\n", __func__, pwrpriv->rpwm, pslv)); 313 return; 314 } 315 316 if ((padapter->bSurpriseRemoved) || 317 (!padapter->hw_init_completed)) { 318 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, 319 ("%s: SurpriseRemoved(%d) hw_init_completed(%d)\n", 320 __func__, padapter->bSurpriseRemoved, padapter->hw_init_completed)); 321 322 pwrpriv->cpwm = PS_STATE_S4; 323 324 return; 325 } 326 327 if (padapter->bDriverStopped) { 328 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, 329 ("%s: change power state(0x%02X) when DriverStopped\n", __func__, pslv)); 330 331 if (pslv < PS_STATE_S2) { 332 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, 333 ("%s: Reject to enter PS_STATE(0x%02X) lower than S2 when DriverStopped!!\n", __func__, pslv)); 334 return; 335 } 336 } 337 338 rpwm = pslv | pwrpriv->tog; 339 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_, 340 ("rtw_set_rpwm: rpwm=0x%02x cpwm=0x%02x\n", rpwm, pwrpriv->cpwm)); 341 342 pwrpriv->rpwm = pslv; 343 344 rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&rpwm)); 345 346 pwrpriv->tog += 0x80; 347 pwrpriv->cpwm = pslv; 348} 349 350static u8 PS_RDY_CHECK(struct adapter *padapter) 351{ 352 u32 curr_time, delta_time; 353 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; 354 struct mlme_priv *pmlmepriv = &(padapter->mlmepriv); 355 356 357 curr_time = jiffies; 358 delta_time = curr_time - pwrpriv->DelayLPSLastTimeStamp; 359 360 if (delta_time < LPS_DELAY_TIME) 361 return false; 362 363 if ((check_fwstate(pmlmepriv, _FW_LINKED) == false) || 364 (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) || 365 (check_fwstate(pmlmepriv, WIFI_AP_STATE)) || 366 (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) || 367 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE))) 368 return false; 369 if (pwrpriv->bInSuspend) 370 return false; 371 if ((padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) && (padapter->securitypriv.binstallGrpkey == false)) { 372 DBG_88E("Group handshake still in progress !!!\n"); 373 return false; 374 } 375 return true; 376} 377 378void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode) 379{ 380 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; 381 382 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_, 383 ("%s: PowerMode=%d Smart_PS=%d\n", 384 __func__, ps_mode, smart_ps)); 385 386 if (ps_mode > PM_Card_Disable) { 387 RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("ps_mode:%d error\n", ps_mode)); 388 return; 389 } 390 391 if (pwrpriv->pwr_mode == ps_mode) { 392 if (PS_MODE_ACTIVE == ps_mode) 393 return; 394 395 if ((pwrpriv->smart_ps == smart_ps) && 396 (pwrpriv->bcn_ant_mode == bcn_ant_mode)) 397 return; 398 } 399 400 /* if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) */ 401 if (ps_mode == PS_MODE_ACTIVE) { 402 if (PS_RDY_CHECK(padapter)) { 403 DBG_88E("%s: Enter 802.11 power save\n", __func__); 404 pwrpriv->bFwCurrentInPSMode = true; 405 pwrpriv->pwr_mode = ps_mode; 406 pwrpriv->smart_ps = smart_ps; 407 pwrpriv->bcn_ant_mode = bcn_ant_mode; 408 rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode)); 409 rtw_set_rpwm(padapter, PS_STATE_S2); 410 } 411 } 412} 413 414/* 415 * Return: 416 * 0: Leave OK 417 * -1: Timeout 418 * -2: Other error 419 */ 420s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms) 421{ 422 u32 start_time; 423 u8 bAwake = false; 424 s32 err = 0; 425 426 427 start_time = jiffies; 428 while (1) { 429 rtw_hal_get_hwreg(padapter, HW_VAR_FWLPS_RF_ON, &bAwake); 430 if (bAwake) 431 break; 432 433 if (padapter->bSurpriseRemoved) { 434 err = -2; 435 DBG_88E("%s: device surprise removed!!\n", __func__); 436 break; 437 } 438 439 if (rtw_get_passing_time_ms(start_time) > delay_ms) { 440 err = -1; 441 DBG_88E("%s: Wait for FW LPS leave more than %u ms!!!\n", __func__, delay_ms); 442 break; 443 } 444 msleep(1); 445 } 446 447 return err; 448} 449 450/* */ 451/* Description: */ 452/* Enter the leisure power save mode. */ 453/* */ 454void LPS_Enter(struct adapter *padapter) 455{ 456 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; 457 458 if (PS_RDY_CHECK(padapter) == false) 459 return; 460 461 if (pwrpriv->bLeisurePs) { 462 /* Idle for a while if we connect to AP a while ago. */ 463 if (pwrpriv->LpsIdleCount >= 2) { /* 4 Sec */ 464 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) { 465 pwrpriv->bpower_saving = true; 466 DBG_88E("%s smart_ps:%d\n", __func__, pwrpriv->smart_ps); 467 /* For Tenda W311R IOT issue */ 468 rtw_set_ps_mode(padapter, pwrpriv->power_mgnt, pwrpriv->smart_ps, 0); 469 } 470 } else { 471 pwrpriv->LpsIdleCount++; 472 } 473 } 474} 475 476#define LPS_LEAVE_TIMEOUT_MS 100 477 478/* Description: */ 479/* Leave the leisure power save mode. */ 480void LPS_Leave(struct adapter *padapter) 481{ 482 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; 483 484 if (pwrpriv->bLeisurePs) { 485 if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) { 486 rtw_set_ps_mode(padapter, PS_MODE_ACTIVE, 0, 0); 487 488 if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) 489 LPS_RF_ON_check(padapter, LPS_LEAVE_TIMEOUT_MS); 490 } 491 } 492 493 pwrpriv->bpower_saving = false; 494} 495 496/* */ 497/* Description: Leave all power save mode: LPS, FwLPS, IPS if needed. */ 498/* Move code to function by tynli. 2010.03.26. */ 499/* */ 500void LeaveAllPowerSaveMode(struct adapter *Adapter) 501{ 502 struct mlme_priv *pmlmepriv = &(Adapter->mlmepriv); 503 u8 enqueue = 0; 504 505 if (check_fwstate(pmlmepriv, _FW_LINKED)) 506 rtw_lps_ctrl_wk_cmd(Adapter, LPS_CTRL_LEAVE, enqueue); 507} 508 509void rtw_init_pwrctrl_priv(struct adapter *padapter) 510{ 511 struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv; 512 513 _init_pwrlock(&pwrctrlpriv->lock); 514 pwrctrlpriv->rf_pwrstate = rf_on; 515 pwrctrlpriv->ips_enter_cnts = 0; 516 pwrctrlpriv->ips_leave_cnts = 0; 517 pwrctrlpriv->bips_processing = false; 518 519 pwrctrlpriv->ips_mode = padapter->registrypriv.ips_mode; 520 pwrctrlpriv->ips_mode_req = padapter->registrypriv.ips_mode; 521 522 pwrctrlpriv->pwr_state_check_interval = RTW_PWR_STATE_CHK_INTERVAL; 523 pwrctrlpriv->pwr_state_check_cnts = 0; 524 pwrctrlpriv->bInternalAutoSuspend = false; 525 pwrctrlpriv->bInSuspend = false; 526 pwrctrlpriv->bkeepfwalive = false; 527 528 pwrctrlpriv->LpsIdleCount = 0; 529 if (padapter->registrypriv.mp_mode == 1) 530 pwrctrlpriv->power_mgnt = PS_MODE_ACTIVE ; 531 else 532 pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/* PS_MODE_MIN; */ 533 pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false; 534 535 pwrctrlpriv->bFwCurrentInPSMode = false; 536 537 pwrctrlpriv->rpwm = 0; 538 pwrctrlpriv->cpwm = PS_STATE_S4; 539 540 pwrctrlpriv->pwr_mode = PS_MODE_ACTIVE; 541 pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps; 542 pwrctrlpriv->bcn_ant_mode = 0; 543 544 pwrctrlpriv->tog = 0x80; 545 546 pwrctrlpriv->btcoex_rfon = false; 547 548 _init_timer(&(pwrctrlpriv->pwr_state_check_timer), padapter->pnetdev, pwr_state_check_handler, (u8 *)padapter); 549} 550 551inline void rtw_set_ips_deny(struct adapter *padapter, u32 ms) 552{ 553 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; 554 pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ms); 555} 556 557/* 558* rtw_pwr_wakeup - Wake the NIC up from: 1)IPS. 2)USB autosuspend 559* @adapter: pointer to struct adapter structure 560* @ips_deffer_ms: the ms will prevent from falling into IPS after wakeup 561* Return _SUCCESS or _FAIL 562*/ 563 564int _rtw_pwr_wakeup(struct adapter *padapter, u32 ips_deffer_ms, const char *caller) 565{ 566 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; 567 struct mlme_priv *pmlmepriv = &padapter->mlmepriv; 568 unsigned long expires; 569 int ret = _SUCCESS; 570 571 expires = jiffies + msecs_to_jiffies(ips_deffer_ms); 572 if (time_before(pwrpriv->ips_deny_time, expires)) 573 pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms); 574 575{ 576 u32 start = jiffies; 577 if (pwrpriv->ps_processing) { 578 DBG_88E("%s wait ps_processing...\n", __func__); 579 while (pwrpriv->ps_processing && rtw_get_passing_time_ms(start) <= 3000) 580 msleep(10); 581 if (pwrpriv->ps_processing) 582 DBG_88E("%s wait ps_processing timeout\n", __func__); 583 else 584 DBG_88E("%s wait ps_processing done\n", __func__); 585 } 586} 587 588 /* System suspend is not allowed to wakeup */ 589 if ((!pwrpriv->bInternalAutoSuspend) && (pwrpriv->bInSuspend)) { 590 ret = _FAIL; 591 goto exit; 592 } 593 594 /* block??? */ 595 if ((pwrpriv->bInternalAutoSuspend) && (padapter->net_closed)) { 596 ret = _FAIL; 597 goto exit; 598 } 599 600 /* I think this should be check in IPS, LPS, autosuspend functions... */ 601 if (check_fwstate(pmlmepriv, _FW_LINKED)) { 602 ret = _SUCCESS; 603 goto exit; 604 } 605 if (rf_off == pwrpriv->rf_pwrstate) { 606 DBG_88E("%s call ips_leave....\n", __func__); 607 if (_FAIL == ips_leave(padapter)) { 608 DBG_88E("======> ips_leave fail.............\n"); 609 ret = _FAIL; 610 goto exit; 611 } 612 } 613 614 /* TODO: the following checking need to be merged... */ 615 if (padapter->bDriverStopped || !padapter->bup || 616 !padapter->hw_init_completed) { 617 DBG_88E("%s: bDriverStopped=%d, bup=%d, hw_init_completed =%u\n" 618 , caller 619 , padapter->bDriverStopped 620 , padapter->bup 621 , padapter->hw_init_completed); 622 ret = false; 623 goto exit; 624 } 625 626exit: 627 expires = jiffies + msecs_to_jiffies(ips_deffer_ms); 628 if (time_before(pwrpriv->ips_deny_time, expires)) 629 pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms); 630 return ret; 631} 632 633int rtw_pm_set_lps(struct adapter *padapter, u8 mode) 634{ 635 int ret = 0; 636 struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv; 637 638 if (mode < PS_MODE_NUM) { 639 if (pwrctrlpriv->power_mgnt != mode) { 640 if (PS_MODE_ACTIVE == mode) 641 LeaveAllPowerSaveMode(padapter); 642 else 643 pwrctrlpriv->LpsIdleCount = 2; 644 pwrctrlpriv->power_mgnt = mode; 645 pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false; 646 } 647 } else { 648 ret = -EINVAL; 649 } 650 651 return ret; 652} 653 654int rtw_pm_set_ips(struct adapter *padapter, u8 mode) 655{ 656 struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv; 657 658 if (mode == IPS_NORMAL || mode == IPS_LEVEL_2) { 659 rtw_ips_mode_req(pwrctrlpriv, mode); 660 DBG_88E("%s %s\n", __func__, mode == IPS_NORMAL ? "IPS_NORMAL" : "IPS_LEVEL_2"); 661 return 0; 662 } else if (mode == IPS_NONE) { 663 rtw_ips_mode_req(pwrctrlpriv, mode); 664 DBG_88E("%s %s\n", __func__, "IPS_NONE"); 665 if ((padapter->bSurpriseRemoved == 0) && (_FAIL == rtw_pwr_wakeup(padapter))) 666 return -EFAULT; 667 } else { 668 return -EINVAL; 669 } 670 return 0; 671} 672