[linux-2.6-block.git] / drivers / staging / rtl8188eu / core / rtw_pwrctrl.c

/******************************************************************************
 *
 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 *
 ******************************************************************************/
#define _RTW_PWRCTRL_C_

#include <osdep_service.h>
#include <drv_types.h>
#include <osdep_intf.h>
#include <usb_ops_linux.h>
#include <linux/usb.h>

static int rtw_hw_suspend(struct adapter *padapter)
{
	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
	struct net_device *pnetdev = padapter->pnetdev;


	if ((!padapter->bup) || (padapter->bDriverStopped) ||
	    (padapter->bSurpriseRemoved)) {
		DBG_88E("padapter->bup=%d bDriverStopped=%d bSurpriseRemoved = %d\n",
			padapter->bup, padapter->bDriverStopped,
			padapter->bSurpriseRemoved);
		goto error_exit;
	}

	/* system suspend */
	LeaveAllPowerSaveMode(padapter);

	DBG_88E("==> rtw_hw_suspend\n");
	_enter_pwrlock(&pwrpriv->lock);
	pwrpriv->bips_processing = true;
	/* s1. */
	if (pnetdev) {
		netif_carrier_off(pnetdev);
		netif_tx_stop_all_queues(pnetdev);
	}

	/* s2. */
	rtw_disassoc_cmd(padapter, 500, false);

	/* s2-2.  indicate disconnect to os */
	{
		struct	mlme_priv *pmlmepriv = &padapter->mlmepriv;

		if (check_fwstate(pmlmepriv, _FW_LINKED)) {
			_clr_fwstate_(pmlmepriv, _FW_LINKED);

			rtw_led_control(padapter, LED_CTL_NO_LINK);

			rtw_os_indicate_disconnect(padapter);

			/* donnot enqueue cmd */
			rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 0);
		}
	}
	/* s2-3. */
	rtw_free_assoc_resources(padapter);

	/* s2-4. */
	rtw_free_network_queue(padapter, true);
	rtw_ips_dev_unload(padapter);
	pwrpriv->rf_pwrstate = rf_off;
	pwrpriv->bips_processing = false;

	_exit_pwrlock(&pwrpriv->lock);

	return 0;

error_exit:
	DBG_88E("%s, failed\n", __func__);
	return -1;
}

static int rtw_hw_resume(struct adapter *padapter)
{
	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
	struct net_device *pnetdev = padapter->pnetdev;


	/* system resume */
	DBG_88E("==> rtw_hw_resume\n");
	_enter_pwrlock(&pwrpriv->lock);
	pwrpriv->bips_processing = true;
	rtw_reset_drv_sw(padapter);

	if (pm_netdev_open(pnetdev, false) != 0) {
		_exit_pwrlock(&pwrpriv->lock);
		goto error_exit;
	}

	netif_device_attach(pnetdev);
	netif_carrier_on(pnetdev);

	if (!netif_queue_stopped(pnetdev))
		netif_start_queue(pnetdev);
	else
		netif_wake_queue(pnetdev);

	pwrpriv->bkeepfwalive = false;
	pwrpriv->brfoffbyhw = false;

	pwrpriv->rf_pwrstate = rf_on;
	pwrpriv->bips_processing = false;

	_exit_pwrlock(&pwrpriv->lock);


	return 0;
error_exit:
	DBG_88E("%s, Open net dev failed\n", __func__);
	return -1;
}

void ips_enter(struct adapter *padapter)
{
	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
	struct xmit_priv *pxmit_priv = &padapter->xmitpriv;

	if (padapter->registrypriv.mp_mode == 1)
		return;

	if (pxmit_priv->free_xmitbuf_cnt != NR_XMITBUFF ||
	    pxmit_priv->free_xmit_extbuf_cnt != NR_XMIT_EXTBUFF) {
		DBG_88E_LEVEL(_drv_info_, "There are some pkts to transmit\n");
		DBG_88E_LEVEL(_drv_info_, "free_xmitbuf_cnt: %d, free_xmit_extbuf_cnt: %d\n",
			      pxmit_priv->free_xmitbuf_cnt, pxmit_priv->free_xmit_extbuf_cnt);
		return;
	}

	_enter_pwrlock(&pwrpriv->lock);

	pwrpriv->bips_processing = true;

	/*  syn ips_mode with request */
	pwrpriv->ips_mode = pwrpriv->ips_mode_req;

	pwrpriv->ips_enter_cnts++;
	DBG_88E("==>ips_enter cnts:%d\n", pwrpriv->ips_enter_cnts);
	if (rf_off == pwrpriv->change_rfpwrstate) {
		pwrpriv->bpower_saving = true;
		DBG_88E_LEVEL(_drv_info_, "nolinked power save enter\n");

		if (pwrpriv->ips_mode == IPS_LEVEL_2)
			pwrpriv->bkeepfwalive = true;

		rtw_ips_pwr_down(padapter);
		pwrpriv->rf_pwrstate = rf_off;
	}
	pwrpriv->bips_processing = false;

	_exit_pwrlock(&pwrpriv->lock);
}

int ips_leave(struct adapter *padapter)
{
	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
	struct security_priv *psecuritypriv = &(padapter->securitypriv);
	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
	int result = _SUCCESS;
	int keyid;


	_enter_pwrlock(&pwrpriv->lock);

	if ((pwrpriv->rf_pwrstate == rf_off) && (!pwrpriv->bips_processing)) {
		pwrpriv->bips_processing = true;
		pwrpriv->change_rfpwrstate = rf_on;
		pwrpriv->ips_leave_cnts++;
		DBG_88E("==>ips_leave cnts:%d\n", pwrpriv->ips_leave_cnts);

		result = rtw_ips_pwr_up(padapter);
		if (result == _SUCCESS) {
			pwrpriv->rf_pwrstate = rf_on;
		}
		DBG_88E_LEVEL(_drv_info_, "nolinked power save leave\n");

		if ((_WEP40_ == psecuritypriv->dot11PrivacyAlgrthm) || (_WEP104_ == psecuritypriv->dot11PrivacyAlgrthm)) {
			DBG_88E("==>%s, channel(%d), processing(%x)\n", __func__, padapter->mlmeextpriv.cur_channel, pwrpriv->bips_processing);
			set_channel_bwmode(padapter, padapter->mlmeextpriv.cur_channel, HAL_PRIME_CHNL_OFFSET_DONT_CARE, HT_CHANNEL_WIDTH_20);
			for (keyid = 0; keyid < 4; keyid++) {
				if (pmlmepriv->key_mask & BIT(keyid)) {
					if (keyid == psecuritypriv->dot11PrivacyKeyIndex)
						result = rtw_set_key(padapter, psecuritypriv, keyid, 1);
					else
						result = rtw_set_key(padapter, psecuritypriv, keyid, 0);
				}
			}
		}

		DBG_88E("==> ips_leave.....LED(0x%08x)...\n", usb_read32(padapter, 0x4c));
		pwrpriv->bips_processing = false;

		pwrpriv->bkeepfwalive = false;
		pwrpriv->bpower_saving = false;
	}

	_exit_pwrlock(&pwrpriv->lock);

	return result;
}

static bool rtw_pwr_unassociated_idle(struct adapter *adapter)
{
	struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
	bool ret = false;

	if (time_after_eq(adapter->pwrctrlpriv.ips_deny_time, jiffies))
		goto exit;

	if (check_fwstate(pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR) ||
	    check_fwstate(pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS) ||
	    check_fwstate(pmlmepriv, WIFI_AP_STATE) ||
	    check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE))
		goto exit;

	ret = true;

exit:
	return ret;
}

void rtw_ps_processor(struct adapter *padapter)
{
	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
	enum rt_rf_power_state rfpwrstate;

	pwrpriv->ps_processing = true;

	if (pwrpriv->bips_processing)
		goto exit;

	if (padapter->pwrctrlpriv.bHWPwrPindetect) {
		rfpwrstate = RfOnOffDetect(padapter);
		DBG_88E("@@@@- #2  %s==> rfstate:%s\n", __func__, (rfpwrstate == rf_on) ? "rf_on" : "rf_off");

		if (rfpwrstate != pwrpriv->rf_pwrstate) {
			if (rfpwrstate == rf_off) {
				pwrpriv->change_rfpwrstate = rf_off;
				pwrpriv->brfoffbyhw = true;
				rtw_hw_suspend(padapter);
			} else {
				pwrpriv->change_rfpwrstate = rf_on;
				rtw_hw_resume(padapter);
			}
			DBG_88E("current rf_pwrstate(%s)\n", (pwrpriv->rf_pwrstate == rf_off) ? "rf_off" : "rf_on");
		}
		pwrpriv->pwr_state_check_cnts++;
	}

	if (pwrpriv->ips_mode_req == IPS_NONE)
		goto exit;

	if (!rtw_pwr_unassociated_idle(padapter))
		goto exit;

	if ((pwrpriv->rf_pwrstate == rf_on) && ((pwrpriv->pwr_state_check_cnts%4) == 0)) {
		DBG_88E("==>%s .fw_state(%x)\n", __func__, get_fwstate(pmlmepriv));
		pwrpriv->change_rfpwrstate = rf_off;

		ips_enter(padapter);
	}
exit:
	rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv);
	pwrpriv->ps_processing = false;
}

static void pwr_state_check_handler(unsigned long data)
{
	struct adapter *padapter = (struct adapter *)data;
	rtw_ps_cmd(padapter);
}

/*
 *
 * Parameters
 *	padapter
 *	pslv			power state level, only could be PS_STATE_S0 ~ PS_STATE_S4
 *
 */
void rtw_set_rpwm(struct adapter *padapter, u8 pslv)
{
	u8	rpwm;
	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;

	pslv = PS_STATE(pslv);

	if (pwrpriv->btcoex_rfon) {
		if (pslv < PS_STATE_S4)
			pslv = PS_STATE_S3;
	}

	if ((pwrpriv->rpwm == pslv)) {
		RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
			 ("%s: Already set rpwm[0x%02X], new=0x%02X!\n", __func__, pwrpriv->rpwm, pslv));
		return;
	}

	if ((padapter->bSurpriseRemoved) ||
	    (!padapter->hw_init_completed)) {
		RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
			 ("%s: SurpriseRemoved(%d) hw_init_completed(%d)\n",
			 __func__, padapter->bSurpriseRemoved, padapter->hw_init_completed));

		pwrpriv->cpwm = PS_STATE_S4;

		return;
	}

	if (padapter->bDriverStopped) {
		RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
			 ("%s: change power state(0x%02X) when DriverStopped\n", __func__, pslv));

		if (pslv < PS_STATE_S2) {
			RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
				 ("%s: Reject to enter PS_STATE(0x%02X) lower than S2 when DriverStopped!!\n", __func__, pslv));
			return;
		}
	}

	rpwm = pslv | pwrpriv->tog;
	RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
		 ("rtw_set_rpwm: rpwm=0x%02x cpwm=0x%02x\n", rpwm, pwrpriv->cpwm));

	pwrpriv->rpwm = pslv;

	rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&rpwm));

	pwrpriv->tog += 0x80;
	pwrpriv->cpwm = pslv;
}

static u8 PS_RDY_CHECK(struct adapter *padapter)
{
	u32 curr_time, delta_time;
	struct pwrctrl_priv	*pwrpriv = &padapter->pwrctrlpriv;
	struct mlme_priv	*pmlmepriv = &(padapter->mlmepriv);


	curr_time = jiffies;
	delta_time = curr_time - pwrpriv->DelayLPSLastTimeStamp;

	if (delta_time < LPS_DELAY_TIME)
		return false;

	if ((check_fwstate(pmlmepriv, _FW_LINKED) == false) ||
	    (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) ||
	    (check_fwstate(pmlmepriv, WIFI_AP_STATE)) ||
	    (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) ||
	    (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)))
		return false;
	if (pwrpriv->bInSuspend)
		return false;
	if ((padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) && (padapter->securitypriv.binstallGrpkey == false)) {
		DBG_88E("Group handshake still in progress !!!\n");
		return false;
	}
	return true;
}

void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode)
{
	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;

	RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
		 ("%s: PowerMode=%d Smart_PS=%d\n",
		  __func__, ps_mode, smart_ps));

	if (ps_mode > PM_Card_Disable) {
		RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("ps_mode:%d error\n", ps_mode));
		return;
	}

	if (pwrpriv->pwr_mode == ps_mode) {
		if (PS_MODE_ACTIVE == ps_mode)
			return;

		if ((pwrpriv->smart_ps == smart_ps) &&
		    (pwrpriv->bcn_ant_mode == bcn_ant_mode))
			return;
	}

	/* if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) */
	if (ps_mode == PS_MODE_ACTIVE) {
		if (PS_RDY_CHECK(padapter)) {
			DBG_88E("%s: Enter 802.11 power save\n", __func__);
			pwrpriv->bFwCurrentInPSMode = true;
			pwrpriv->pwr_mode = ps_mode;
			pwrpriv->smart_ps = smart_ps;
			pwrpriv->bcn_ant_mode = bcn_ant_mode;
			rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode));
			rtw_set_rpwm(padapter, PS_STATE_S2);
		}
	}
}

/*
 * Return:
 *	0:	Leave OK
 *	-1:	Timeout
 *	-2:	Other error
 */
s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms)
{
	u32 start_time;
	u8 bAwake = false;
	s32 err = 0;


	start_time = jiffies;
	while (1) {
		rtw_hal_get_hwreg(padapter, HW_VAR_FWLPS_RF_ON, &bAwake);
		if (bAwake)
			break;

		if (padapter->bSurpriseRemoved) {
			err = -2;
			DBG_88E("%s: device surprise removed!!\n", __func__);
			break;
		}

		if (rtw_get_passing_time_ms(start_time) > delay_ms) {
			err = -1;
			DBG_88E("%s: Wait for FW LPS leave more than %u ms!!!\n", __func__, delay_ms);
			break;
		}
		msleep(1);
	}

	return err;
}

/*  */
/*	Description: */
/*		Enter the leisure power save mode. */
/*  */
void LPS_Enter(struct adapter *padapter)
{
	struct pwrctrl_priv	*pwrpriv = &padapter->pwrctrlpriv;

	if (PS_RDY_CHECK(padapter) == false)
		return;

	if (pwrpriv->bLeisurePs) {
		/*  Idle for a while if we connect to AP a while ago. */
		if (pwrpriv->LpsIdleCount >= 2) { /*   4 Sec */
			if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
				pwrpriv->bpower_saving = true;
				DBG_88E("%s smart_ps:%d\n", __func__, pwrpriv->smart_ps);
				/* For Tenda W311R IOT issue */
				rtw_set_ps_mode(padapter, pwrpriv->power_mgnt, pwrpriv->smart_ps, 0);
			}
		} else {
			pwrpriv->LpsIdleCount++;
		}
	}
}

#define LPS_LEAVE_TIMEOUT_MS 100

/*	Description: */
/*		Leave the leisure power save mode. */
void LPS_Leave(struct adapter *padapter)
{
	struct pwrctrl_priv	*pwrpriv = &padapter->pwrctrlpriv;

	if (pwrpriv->bLeisurePs) {
		if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) {
			rtw_set_ps_mode(padapter, PS_MODE_ACTIVE, 0, 0);

			if (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
				LPS_RF_ON_check(padapter, LPS_LEAVE_TIMEOUT_MS);
		}
	}

	pwrpriv->bpower_saving = false;
}

/*  */
/*  Description: Leave all power save mode: LPS, FwLPS, IPS if needed. */
/*  Move code to function by tynli. 2010.03.26. */
/*  */
void LeaveAllPowerSaveMode(struct adapter *Adapter)
{
	struct mlme_priv	*pmlmepriv = &(Adapter->mlmepriv);
	u8	enqueue = 0;

	if (check_fwstate(pmlmepriv, _FW_LINKED))
		rtw_lps_ctrl_wk_cmd(Adapter, LPS_CTRL_LEAVE, enqueue);
}

void rtw_init_pwrctrl_priv(struct adapter *padapter)
{
	struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;

	_init_pwrlock(&pwrctrlpriv->lock);
	pwrctrlpriv->rf_pwrstate = rf_on;
	pwrctrlpriv->ips_enter_cnts = 0;
	pwrctrlpriv->ips_leave_cnts = 0;
	pwrctrlpriv->bips_processing = false;

	pwrctrlpriv->ips_mode = padapter->registrypriv.ips_mode;
	pwrctrlpriv->ips_mode_req = padapter->registrypriv.ips_mode;

	pwrctrlpriv->pwr_state_check_interval = RTW_PWR_STATE_CHK_INTERVAL;
	pwrctrlpriv->pwr_state_check_cnts = 0;
	pwrctrlpriv->bInternalAutoSuspend = false;
	pwrctrlpriv->bInSuspend = false;
	pwrctrlpriv->bkeepfwalive = false;

	pwrctrlpriv->LpsIdleCount = 0;
	if (padapter->registrypriv.mp_mode == 1)
		pwrctrlpriv->power_mgnt = PS_MODE_ACTIVE;
	else
		pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/*  PS_MODE_MIN; */
	pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false;

	pwrctrlpriv->bFwCurrentInPSMode = false;

	pwrctrlpriv->rpwm = 0;
	pwrctrlpriv->cpwm = PS_STATE_S4;

	pwrctrlpriv->pwr_mode = PS_MODE_ACTIVE;
	pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps;
	pwrctrlpriv->bcn_ant_mode = 0;

	pwrctrlpriv->tog = 0x80;

	pwrctrlpriv->btcoex_rfon = false;

	setup_timer(&pwrctrlpriv->pwr_state_check_timer,
		    pwr_state_check_handler,
		    (unsigned long)padapter);
}

/*
* rtw_pwr_wakeup - Wake the NIC up from: 1)IPS. 2)USB autosuspend
* @adapter: pointer to struct adapter structure
* @ips_deffer_ms: the ms will prevent from falling into IPS after wakeup
* Return _SUCCESS or _FAIL
*/

int _rtw_pwr_wakeup(struct adapter *padapter, u32 ips_deffer_ms, const char *caller)
{
	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
	unsigned long expires;
	int ret = _SUCCESS;

	expires = jiffies + msecs_to_jiffies(ips_deffer_ms);
	if (time_before(pwrpriv->ips_deny_time, expires))
		pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);

{
	u32 start = jiffies;
	if (pwrpriv->ps_processing) {
		DBG_88E("%s wait ps_processing...\n", __func__);
		while (pwrpriv->ps_processing && rtw_get_passing_time_ms(start) <= 3000)
			usleep_range(1000, 3000);
		if (pwrpriv->ps_processing)
			DBG_88E("%s wait ps_processing timeout\n", __func__);
		else
			DBG_88E("%s wait ps_processing done\n", __func__);
	}
}

	/* System suspend is not allowed to wakeup */
	if ((!pwrpriv->bInternalAutoSuspend) && (pwrpriv->bInSuspend)) {
		ret = _FAIL;
		goto exit;
	}

	/* block??? */
	if ((pwrpriv->bInternalAutoSuspend)  && (padapter->net_closed)) {
		ret = _FAIL;
		goto exit;
	}

	/* I think this should be check in IPS, LPS, autosuspend functions... */
	if (check_fwstate(pmlmepriv, _FW_LINKED)) {
		ret = _SUCCESS;
		goto exit;
	}
	if (rf_off == pwrpriv->rf_pwrstate) {
		DBG_88E("%s call ips_leave....\n", __func__);
		if (_FAIL ==  ips_leave(padapter)) {
			DBG_88E("======> ips_leave fail.............\n");
			ret = _FAIL;
			goto exit;
		}
	}

	/* TODO: the following checking need to be merged... */
	if (padapter->bDriverStopped || !padapter->bup ||
	    !padapter->hw_init_completed) {
		DBG_88E("%s: bDriverStopped=%d, bup=%d, hw_init_completed =%u\n"
			, caller
			, padapter->bDriverStopped
			, padapter->bup
			, padapter->hw_init_completed);
		ret = false;
		goto exit;
	}

exit:
	expires = jiffies + msecs_to_jiffies(ips_deffer_ms);
	if (time_before(pwrpriv->ips_deny_time, expires))
		pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
	return ret;
}

int rtw_pm_set_lps(struct adapter *padapter, u8 mode)
{
	int	ret = 0;
	struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;

	if (mode < PS_MODE_NUM) {
		if (pwrctrlpriv->power_mgnt != mode) {
			if (PS_MODE_ACTIVE == mode)
				LeaveAllPowerSaveMode(padapter);
			else
				pwrctrlpriv->LpsIdleCount = 2;
			pwrctrlpriv->power_mgnt = mode;
			pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false;
		}
	} else {
		ret = -EINVAL;
	}

	return ret;
}

int rtw_pm_set_ips(struct adapter *padapter, u8 mode)
{
	struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;

	if (mode == IPS_NORMAL || mode == IPS_LEVEL_2) {
		rtw_ips_mode_req(pwrctrlpriv, mode);
		DBG_88E("%s %s\n", __func__, mode == IPS_NORMAL ? "IPS_NORMAL" : "IPS_LEVEL_2");
		return 0;
	} else if (mode == IPS_NONE) {
		rtw_ips_mode_req(pwrctrlpriv, mode);
		DBG_88E("%s %s\n", __func__, "IPS_NONE");
		if ((padapter->bSurpriseRemoved == 0) && (_FAIL == rtw_pwr_wakeup(padapter)))
			return -EFAULT;
	} else {
		return -EINVAL;
	}
	return 0;
}
Commit	Line	Data
1cc18a22 LF	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>
e73fd15e	25	#include <usb_ops_linux.h>
1cc18a22	26	#include <linux/usb.h>
95311b47	27
	28	static 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. */
b4ba3b57	73	rtw_free_assoc_resources(padapter);
95311b47	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
	85	error_exit:
	86	DBG_88E("%s, failed\n", __func__);
	87	return -1;
	88	}
	89
	90	static 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;
	125	error_exit:
	126	DBG_88E("%s, Open net dev failed\n", __func__);
	127	return -1;
	128	}
1cc18a22 LF	129
	130	void 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
	170	int 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
99ecfb06	206	DBG_88E("==> ips_leave.....LED(0x%08x)...\n", usb_read32(padapter, 0x4c));
1cc18a22 LF	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
	218	static bool rtw_pwr_unassociated_idle(struct adapter *adapter)
	219	{
1cc18a22	220	struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
1cc18a22 LF	221	bool ret = false;
1cc18a22 LF	222
e017a92b	223	if (time_after_eq(adapter->pwrctrlpriv.ips_deny_time, jiffies))
1cc18a22 LF	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) \|\|
2454e79a	229	check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE\|WIFI_ADHOC_STATE))
1cc18a22 LF	230	goto exit;
1cc18a22 LF	231
1cc18a22 LF	232	ret = true;
	233
	234	exit:
	235	return ret;
	236	}
	237
	238	void 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;
1cc18a22 LF	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
5b66fb7d	270	if (!rtw_pwr_unassociated_idle(padapter))
1cc18a22 LF	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	}
	279	exit:
	280	rtw_set_pwr_state_check_timer(&padapter->pwrctrlpriv);
	281	pwrpriv->ps_processing = false;
1cc18a22 LF	282	}
1cc18a22 LF	283
28af7ea8	284	static void pwr_state_check_handler(unsigned long data)
1cc18a22	285	{
28af7ea8	286	struct adapter padapter = (struct adapter )data;
1cc18a22 LF	287	rtw_ps_cmd(padapter);
	288	}
	289
	290	/*
	291	*
	292	* Parameters
	293	* padapter
	294	* pslv power state level, only could be PS_STATE_S0 ~ PS_STATE_S4
	295	*
	296	*/
	297	void rtw_set_rpwm(struct adapter *padapter, u8 pslv)
	298	{
	299	u8 rpwm;
	300	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
	301
1cc18a22 LF	302	pslv = PS_STATE(pslv);
1cc18a22 LF	303
1cc18a22 LF	304	if (pwrpriv->btcoex_rfon) {
	305	if (pslv < PS_STATE_S4)
	306	pslv = PS_STATE_S3;
	307	}
	308
	309	if ((pwrpriv->rpwm == pslv)) {
	310	RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
	311	("%s: Already set rpwm[0x%02X], new=0x%02X!\n", __func__, pwrpriv->rpwm, pslv));
	312	return;
	313	}
	314
	315	if ((padapter->bSurpriseRemoved) \|\|
	316	(!padapter->hw_init_completed)) {
	317	RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
	318	("%s: SurpriseRemoved(%d) hw_init_completed(%d)\n",
	319	__func__, padapter->bSurpriseRemoved, padapter->hw_init_completed));
	320
	321	pwrpriv->cpwm = PS_STATE_S4;
	322
	323	return;
	324	}
	325
	326	if (padapter->bDriverStopped) {
	327	RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
	328	("%s: change power state(0x%02X) when DriverStopped\n", __func__, pslv));
	329
	330	if (pslv < PS_STATE_S2) {
	331	RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_,
	332	("%s: Reject to enter PS_STATE(0x%02X) lower than S2 when DriverStopped!!\n", __func__, pslv));
	333	return;
	334	}
	335	}
	336
	337	rpwm = pslv \| pwrpriv->tog;
	338	RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
	339	("rtw_set_rpwm: rpwm=0x%02x cpwm=0x%02x\n", rpwm, pwrpriv->cpwm));
	340
	341	pwrpriv->rpwm = pslv;
	342
	343	rtw_hal_set_hwreg(padapter, HW_VAR_SET_RPWM, (u8 *)(&rpwm));
	344
	345	pwrpriv->tog += 0x80;
	346	pwrpriv->cpwm = pslv;
1cc18a22 LF	347	}
	348
	349	static u8 PS_RDY_CHECK(struct adapter *padapter)
	350	{
	351	u32 curr_time, delta_time;
	352	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
	353	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
	354
	355
c01fb496	356	curr_time = jiffies;
1cc18a22 LF	357	delta_time = curr_time - pwrpriv->DelayLPSLastTimeStamp;
	358
	359	if (delta_time < LPS_DELAY_TIME)
	360	return false;
	361
	362	if ((check_fwstate(pmlmepriv, _FW_LINKED) == false) \|\|
	363	(check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) \|\|
	364	(check_fwstate(pmlmepriv, WIFI_AP_STATE)) \|\|
	365	(check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) \|\|
	366	(check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)))
	367	return false;
	368	if (pwrpriv->bInSuspend)
	369	return false;
	370	if ((padapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) && (padapter->securitypriv.binstallGrpkey == false)) {
	371	DBG_88E("Group handshake still in progress !!!\n");
	372	return false;
	373	}
	374	return true;
	375	}
	376
	377	void rtw_set_ps_mode(struct adapter *padapter, u8 ps_mode, u8 smart_ps, u8 bcn_ant_mode)
	378	{
	379	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
1cc18a22	380
1cc18a22 LF	381	RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
	382	("%s: PowerMode=%d Smart_PS=%d\n",
	383	__func__, ps_mode, smart_ps));
	384
	385	if (ps_mode > PM_Card_Disable) {
	386	RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_err_, ("ps_mode:%d error\n", ps_mode));
	387	return;
	388	}
	389
	390	if (pwrpriv->pwr_mode == ps_mode) {
	391	if (PS_MODE_ACTIVE == ps_mode)
	392	return;
	393
	394	if ((pwrpriv->smart_ps == smart_ps) &&
	395	(pwrpriv->bcn_ant_mode == bcn_ant_mode))
	396	return;
	397	}
	398
	399	/* if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) */
	400	if (ps_mode == PS_MODE_ACTIVE) {
1cc18a22 LF	401	if (PS_RDY_CHECK(padapter)) {
	402	DBG_88E("%s: Enter 802.11 power save\n", __func__);
	403	pwrpriv->bFwCurrentInPSMode = true;
	404	pwrpriv->pwr_mode = ps_mode;
	405	pwrpriv->smart_ps = smart_ps;
	406	pwrpriv->bcn_ant_mode = bcn_ant_mode;
	407	rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode));
1cc18a22 LF	408	rtw_set_rpwm(padapter, PS_STATE_S2);
	409	}
	410	}
1cc18a22 LF	411	}
	412
	413	/*
	414	* Return:
	415	* 0: Leave OK
	416	* -1: Timeout
	417	* -2: Other error
	418	*/
	419	s32 LPS_RF_ON_check(struct adapter *padapter, u32 delay_ms)
	420	{
	421	u32 start_time;
	422	u8 bAwake = false;
	423	s32 err = 0;
	424
	425
c01fb496	426	start_time = jiffies;
1cc18a22 LF	427	while (1) {
	428	rtw_hal_get_hwreg(padapter, HW_VAR_FWLPS_RF_ON, &bAwake);
	429	if (bAwake)
	430	break;
	431
	432	if (padapter->bSurpriseRemoved) {
	433	err = -2;
	434	DBG_88E("%s: device surprise removed!!\n", __func__);
	435	break;
	436	}
	437
	438	if (rtw_get_passing_time_ms(start_time) > delay_ms) {
	439	err = -1;
	440	DBG_88E("%s: Wait for FW LPS leave more than %u ms!!!\n", __func__, delay_ms);
	441	break;
	442	}
b2dcff2a	443	msleep(1);
1cc18a22 LF	444	}
	445
	446	return err;
	447	}
	448
	449	/* */
	450	/* Description: */
	451	/* Enter the leisure power save mode. */
	452	/* */
	453	void LPS_Enter(struct adapter *padapter)
	454	{
	455	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
	456
1cc18a22 LF	457	if (PS_RDY_CHECK(padapter) == false)
	458	return;
	459
	460	if (pwrpriv->bLeisurePs) {
	461	/* Idle for a while if we connect to AP a while ago. */
	462	if (pwrpriv->LpsIdleCount >= 2) { /* 4 Sec */
	463	if (pwrpriv->pwr_mode == PS_MODE_ACTIVE) {
	464	pwrpriv->bpower_saving = true;
	465	DBG_88E("%s smart_ps:%d\n", __func__, pwrpriv->smart_ps);
	466	/* For Tenda W311R IOT issue */
	467	rtw_set_ps_mode(padapter, pwrpriv->power_mgnt, pwrpriv->smart_ps, 0);
	468	}
	469	} else {
	470	pwrpriv->LpsIdleCount++;
	471	}
	472	}
1cc18a22 LF	473	}
	474
	475	#define LPS_LEAVE_TIMEOUT_MS 100
	476
	477	/* Description: */
	478	/* Leave the leisure power save mode. */
	479	void LPS_Leave(struct adapter *padapter)
	480	{
	481	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
	482
1cc18a22 LF	483	if (pwrpriv->bLeisurePs) {
	484	if (pwrpriv->pwr_mode != PS_MODE_ACTIVE) {
	485	rtw_set_ps_mode(padapter, PS_MODE_ACTIVE, 0, 0);
	486
	487	if (pwrpriv->pwr_mode == PS_MODE_ACTIVE)
	488	LPS_RF_ON_check(padapter, LPS_LEAVE_TIMEOUT_MS);
	489	}
	490	}
	491
	492	pwrpriv->bpower_saving = false;
1cc18a22 LF	493	}
	494
	495	/* */
	496	/* Description: Leave all power save mode: LPS, FwLPS, IPS if needed. */
	497	/* Move code to function by tynli. 2010.03.26. */
	498	/* */
	499	void LeaveAllPowerSaveMode(struct adapter *Adapter)
	500	{
	501	struct mlme_priv *pmlmepriv = &(Adapter->mlmepriv);
	502	u8 enqueue = 0;
	503
2454e79a	504	if (check_fwstate(pmlmepriv, _FW_LINKED))
1cc18a22	505	rtw_lps_ctrl_wk_cmd(Adapter, LPS_CTRL_LEAVE, enqueue);
1cc18a22 LF	506	}
	507
	508	void rtw_init_pwrctrl_priv(struct adapter *padapter)
	509	{
	510	struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
	511
1cc18a22 LF	512	_init_pwrlock(&pwrctrlpriv->lock);
	513	pwrctrlpriv->rf_pwrstate = rf_on;
	514	pwrctrlpriv->ips_enter_cnts = 0;
	515	pwrctrlpriv->ips_leave_cnts = 0;
	516	pwrctrlpriv->bips_processing = false;
	517
	518	pwrctrlpriv->ips_mode = padapter->registrypriv.ips_mode;
	519	pwrctrlpriv->ips_mode_req = padapter->registrypriv.ips_mode;
	520
	521	pwrctrlpriv->pwr_state_check_interval = RTW_PWR_STATE_CHK_INTERVAL;
	522	pwrctrlpriv->pwr_state_check_cnts = 0;
	523	pwrctrlpriv->bInternalAutoSuspend = false;
	524	pwrctrlpriv->bInSuspend = false;
	525	pwrctrlpriv->bkeepfwalive = false;
	526
	527	pwrctrlpriv->LpsIdleCount = 0;
	528	if (padapter->registrypriv.mp_mode == 1)
2adc8c46	529	pwrctrlpriv->power_mgnt = PS_MODE_ACTIVE;
1cc18a22 LF	530	else
	531	pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/* PS_MODE_MIN; */
	532	pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false;
	533
	534	pwrctrlpriv->bFwCurrentInPSMode = false;
	535
	536	pwrctrlpriv->rpwm = 0;
	537	pwrctrlpriv->cpwm = PS_STATE_S4;
	538
	539	pwrctrlpriv->pwr_mode = PS_MODE_ACTIVE;
	540	pwrctrlpriv->smart_ps = padapter->registrypriv.smart_ps;
	541	pwrctrlpriv->bcn_ant_mode = 0;
	542
	543	pwrctrlpriv->tog = 0x80;
	544
	545	pwrctrlpriv->btcoex_rfon = false;
	546
28af7ea8 VT	547	setup_timer(&pwrctrlpriv->pwr_state_check_timer,
	548	pwr_state_check_handler,
	549	(unsigned long)padapter);
1cc18a22 LF	550	}
1cc18a22 LF	551
1cc18a22 LF	552	/*
	553	* rtw_pwr_wakeup - Wake the NIC up from: 1)IPS. 2)USB autosuspend
	554	* @adapter: pointer to struct adapter structure
40a46d8b	555	* @ips_deffer_ms: the ms will prevent from falling into IPS after wakeup
1cc18a22 LF	556	* Return _SUCCESS or _FAIL
	557	*/
	558
	559	int _rtw_pwr_wakeup(struct adapter padapter, u32 ips_deffer_ms, const char caller)
	560	{
	561	struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
	562	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
e017a92b	563	unsigned long expires;
1cc18a22 LF	564	int ret = _SUCCESS;
1cc18a22 LF	565
ace05013	566	expires = jiffies + msecs_to_jiffies(ips_deffer_ms);
e017a92b	567	if (time_before(pwrpriv->ips_deny_time, expires))
ace05013	568	pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
1cc18a22 LF	569
1cc18a22 LF	570	{
c01fb496	571	u32 start = jiffies;
1cc18a22 LF	572	if (pwrpriv->ps_processing) {
	573	DBG_88E("%s wait ps_processing...\n", __func__);
	574	while (pwrpriv->ps_processing && rtw_get_passing_time_ms(start) <= 3000)
86ca02da	575	usleep_range(1000, 3000);
1cc18a22 LF	576	if (pwrpriv->ps_processing)
	577	DBG_88E("%s wait ps_processing timeout\n", __func__);
	578	else
	579	DBG_88E("%s wait ps_processing done\n", __func__);
	580	}
	581	}
	582
	583	/* System suspend is not allowed to wakeup */
	584	if ((!pwrpriv->bInternalAutoSuspend) && (pwrpriv->bInSuspend)) {
	585	ret = _FAIL;
	586	goto exit;
	587	}
	588
	589	/* block??? */
	590	if ((pwrpriv->bInternalAutoSuspend) && (padapter->net_closed)) {
	591	ret = _FAIL;
	592	goto exit;
	593	}
	594
	595	/* I think this should be check in IPS, LPS, autosuspend functions... */
	596	if (check_fwstate(pmlmepriv, _FW_LINKED)) {
	597	ret = _SUCCESS;
	598	goto exit;
	599	}
	600	if (rf_off == pwrpriv->rf_pwrstate) {
	601	DBG_88E("%s call ips_leave....\n", __func__);
	602	if (_FAIL == ips_leave(padapter)) {
	603	DBG_88E("======> ips_leave fail.............\n");
	604	ret = _FAIL;
	605	goto exit;
	606	}
	607	}
	608
	609	/* TODO: the following checking need to be merged... */
	610	if (padapter->bDriverStopped \|\| !padapter->bup \|\|
	611	!padapter->hw_init_completed) {
	612	DBG_88E("%s: bDriverStopped=%d, bup=%d, hw_init_completed =%u\n"
	613	, caller
	614	, padapter->bDriverStopped
	615	, padapter->bup
	616	, padapter->hw_init_completed);
	617	ret = false;
	618	goto exit;
	619	}
	620
	621	exit:
ace05013	622	expires = jiffies + msecs_to_jiffies(ips_deffer_ms);
e017a92b	623	if (time_before(pwrpriv->ips_deny_time, expires))
ace05013	624	pwrpriv->ips_deny_time = jiffies + msecs_to_jiffies(ips_deffer_ms);
1cc18a22 LF	625	return ret;
	626	}
	627
	628	int rtw_pm_set_lps(struct adapter *padapter, u8 mode)
	629	{
	630	int ret = 0;
	631	struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
	632
	633	if (mode < PS_MODE_NUM) {
	634	if (pwrctrlpriv->power_mgnt != mode) {
	635	if (PS_MODE_ACTIVE == mode)
	636	LeaveAllPowerSaveMode(padapter);
	637	else
	638	pwrctrlpriv->LpsIdleCount = 2;
	639	pwrctrlpriv->power_mgnt = mode;
	640	pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false;
	641	}
	642	} else {
	643	ret = -EINVAL;
	644	}
	645
	646	return ret;
	647	}
	648
	649	int rtw_pm_set_ips(struct adapter *padapter, u8 mode)
	650	{
	651	struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
	652
	653	if (mode == IPS_NORMAL \|\| mode == IPS_LEVEL_2) {
	654	rtw_ips_mode_req(pwrctrlpriv, mode);
	655	DBG_88E("%s %s\n", __func__, mode == IPS_NORMAL ? "IPS_NORMAL" : "IPS_LEVEL_2");
	656	return 0;
	657	} else if (mode == IPS_NONE) {
	658	rtw_ips_mode_req(pwrctrlpriv, mode);
	659	DBG_88E("%s %s\n", __func__, "IPS_NONE");
	660	if ((padapter->bSurpriseRemoved == 0) && (_FAIL == rtw_pwr_wakeup(padapter)))
	661	return -EFAULT;
	662	} else {
	663	return -EINVAL;
	664	}
	665	return 0;
	666	}