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|
/******************************************************************************
*
* 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 <linux/usb.h>
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", rtw_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 adapter *buddy = adapter->pbuddy_adapter;
struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
#ifdef CONFIG_88EU_P2P
struct wifidirect_info *pwdinfo = &(adapter->wdinfo);
#endif
bool ret = false;
if (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) ||
#if defined(CONFIG_88EU_P2P)
!rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
#else
0)
#endif
goto exit;
/* consider buddy, if exist */
if (buddy) {
struct mlme_priv *b_pmlmepriv = &(buddy->mlmepriv);
#ifdef CONFIG_88EU_P2P
struct wifidirect_info *b_pwdinfo = &(buddy->wdinfo);
#endif
if (check_fwstate(b_pmlmepriv, WIFI_ASOC_STATE|WIFI_SITE_MONITOR) ||
check_fwstate(b_pmlmepriv, WIFI_UNDER_LINKING|WIFI_UNDER_WPS) ||
check_fwstate(b_pmlmepriv, WIFI_AP_STATE) ||
check_fwstate(b_pmlmepriv, WIFI_ADHOC_MASTER_STATE|WIFI_ADHOC_STATE) ||
#if defined(CONFIG_88EU_P2P)
!rtw_p2p_chk_state(b_pwdinfo, P2P_STATE_NONE))
#else
0)
#endif
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;
padapter->bCardDisableWOHSM = 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;
return;
}
static void pwr_state_check_handler(void *FunctionContext)
{
struct adapter *padapter = (struct adapter *)FunctionContext;
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;
_func_enter_;
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;
_func_exit_;
}
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;
#ifdef CONFIG_88EU_P2P
struct wifidirect_info *pwdinfo = &(padapter->wdinfo);
#endif /* CONFIG_88EU_P2P */
_func_enter_;
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) {
#ifdef CONFIG_88EU_P2P
if (pwdinfo->opp_ps == 0) {
DBG_88E("rtw_set_ps_mode: Leave 802.11 power save\n");
pwrpriv->pwr_mode = ps_mode;
rtw_set_rpwm(padapter, PS_STATE_S4);
rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&ps_mode));
pwrpriv->bFwCurrentInPSMode = false;
}
} else {
#endif /* CONFIG_88EU_P2P */
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));
#ifdef CONFIG_88EU_P2P
/* Set CTWindow after LPS */
if (pwdinfo->opp_ps == 1)
p2p_ps_wk_cmd(padapter, P2P_PS_ENABLE, 0);
#endif /* CONFIG_88EU_P2P */
rtw_set_rpwm(padapter, PS_STATE_S2);
}
}
_func_exit_;
}
/*
* 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;
_func_enter_;
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++;
}
}
_func_exit_;
}
#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;
_func_enter_;
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;
_func_exit_;
}
/* */
/* 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;
_func_enter_;
if (check_fwstate(pmlmepriv, _FW_LINKED)) { /* connect */
p2p_ps_wk_cmd(Adapter, P2P_PS_DISABLE, enqueue);
rtw_lps_ctrl_wk_cmd(Adapter, LPS_CTRL_LEAVE, enqueue);
}
_func_exit_;
}
void rtw_init_pwrctrl_priv(struct adapter *padapter)
{
struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;
_func_enter_;
_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;
_init_timer(&(pwrctrlpriv->pwr_state_check_timer), padapter->pnetdev, pwr_state_check_handler, (u8 *)padapter);
_func_exit_;
}
void rtw_free_pwrctrl_priv(struct adapter *adapter)
{
}
u8 rtw_interface_ps_func(struct adapter *padapter, enum hal_intf_ps_func efunc_id, u8 *val)
{
u8 bResult = true;
rtw_hal_intf_ps_func(padapter, efunc_id, val);
return bResult;
}
inline void rtw_set_ips_deny(struct adapter *padapter, u32 ms)
{
struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv;
pwrpriv->ips_deny_time = jiffies + rtw_ms_to_systime(ms);
}
/*
* rtw_pwr_wakeup - Wake the NIC up from: 1)IPS. 2)USB autosuspend
* @adapter: pointer to struct adapter structure
* @ips_deffer_ms: the ms wiil 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;
int ret = _SUCCESS;
if (pwrpriv->ips_deny_time < jiffies + rtw_ms_to_systime(ips_deffer_ms))
pwrpriv->ips_deny_time = jiffies + rtw_ms_to_systime(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)
msleep(10);
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:
if (pwrpriv->ips_deny_time < jiffies + rtw_ms_to_systime(ips_deffer_ms))
pwrpriv->ips_deny_time = jiffies + rtw_ms_to_systime(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;
}
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