diff options
Diffstat (limited to 'drivers/staging/rtl8192e/rtl8192e/rtl_ps.c')
| -rw-r--r-- | drivers/staging/rtl8192e/rtl8192e/rtl_ps.c | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_ps.c b/drivers/staging/rtl8192e/rtl8192e/rtl_ps.c new file mode 100644 index 000000000000..c9a7c563b682 --- /dev/null +++ b/drivers/staging/rtl8192e/rtl8192e/rtl_ps.c @@ -0,0 +1,310 @@ +/****************************************************************************** + * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved. + * + * Based on the r8180 driver, which is: + * Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al. + * 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 + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * wlanfae <wlanfae@realtek.com> + *****************************************************************************/ +#include "rtl_ps.h" +#include "rtl_core.h" +#include "r8192E_phy.h" +#include "r8192E_phyreg.h" +#include "r8190P_rtl8256.h" /* RTL8225 Radio frontend */ +#include "r8192E_cmdpkt.h" + +static void rtl8192_hw_sleep_down(struct net_device *dev) +{ + struct r8192_priv *priv = rtllib_priv(dev); + unsigned long flags = 0; + spin_lock_irqsave(&priv->rf_ps_lock, flags); + if (priv->RFChangeInProgress) { + spin_unlock_irqrestore(&priv->rf_ps_lock, flags); + RT_TRACE(COMP_DBG, "rtl8192_hw_sleep_down(): RF Change in " + "progress!\n"); + return; + } + spin_unlock_irqrestore(&priv->rf_ps_lock, flags); + RT_TRACE(COMP_DBG, "%s()============>come to sleep down\n", __func__); + + MgntActSet_RF_State(dev, eRfSleep, RF_CHANGE_BY_PS, false); +} + +void rtl8192_hw_sleep_wq(void *data) +{ + struct rtllib_device *ieee = container_of_dwork_rsl(data, + struct rtllib_device, hw_sleep_wq); + struct net_device *dev = ieee->dev; + rtl8192_hw_sleep_down(dev); +} + +void rtl8192_hw_wakeup(struct net_device *dev) +{ + struct r8192_priv *priv = rtllib_priv(dev); + unsigned long flags = 0; + spin_lock_irqsave(&priv->rf_ps_lock, flags); + if (priv->RFChangeInProgress) { + spin_unlock_irqrestore(&priv->rf_ps_lock, flags); + RT_TRACE(COMP_DBG, "rtl8192_hw_wakeup(): RF Change in " + "progress!\n"); + queue_delayed_work_rsl(priv->rtllib->wq, + &priv->rtllib->hw_wakeup_wq, MSECS(10)); + return; + } + spin_unlock_irqrestore(&priv->rf_ps_lock, flags); + RT_TRACE(COMP_PS, "%s()============>come to wake up\n", __func__); + MgntActSet_RF_State(dev, eRfOn, RF_CHANGE_BY_PS, false); +} + +void rtl8192_hw_wakeup_wq(void *data) +{ + struct rtllib_device *ieee = container_of_dwork_rsl(data, + struct rtllib_device, hw_wakeup_wq); + struct net_device *dev = ieee->dev; + rtl8192_hw_wakeup(dev); + +} + +#define MIN_SLEEP_TIME 50 +#define MAX_SLEEP_TIME 10000 +void rtl8192_hw_to_sleep(struct net_device *dev, u64 time) +{ + struct r8192_priv *priv = rtllib_priv(dev); + + u32 tmp; + unsigned long flags; + + spin_lock_irqsave(&priv->ps_lock, flags); + + time -= MSECS(8+16+7); + + if ((time - jiffies) <= MSECS(MIN_SLEEP_TIME)) { + spin_unlock_irqrestore(&priv->ps_lock, flags); + printk(KERN_INFO "too short to sleep::%lld < %ld\n", + time - jiffies, MSECS(MIN_SLEEP_TIME)); + return; + } + + if ((time - jiffies) > MSECS(MAX_SLEEP_TIME)) { + printk(KERN_INFO "========>too long to sleep:%lld > %ld\n", + time - jiffies, MSECS(MAX_SLEEP_TIME)); + spin_unlock_irqrestore(&priv->ps_lock, flags); + return; + } + tmp = time - jiffies; + queue_delayed_work_rsl(priv->rtllib->wq, + &priv->rtllib->hw_wakeup_wq, tmp); + queue_delayed_work_rsl(priv->rtllib->wq, + (void *)&priv->rtllib->hw_sleep_wq, 0); + spin_unlock_irqrestore(&priv->ps_lock, flags); +} + +static void InactivePsWorkItemCallback(struct net_device *dev) +{ + struct r8192_priv *priv = rtllib_priv(dev); + struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *) + &(priv->rtllib->PowerSaveControl); + + RT_TRACE(COMP_PS, "InactivePsWorkItemCallback() --------->\n"); + pPSC->bSwRfProcessing = true; + + RT_TRACE(COMP_PS, "InactivePsWorkItemCallback(): Set RF to %s.\n", + pPSC->eInactivePowerState == eRfOff ? "OFF" : "ON"); + MgntActSet_RF_State(dev, pPSC->eInactivePowerState, RF_CHANGE_BY_IPS, + false); + + pPSC->bSwRfProcessing = false; + RT_TRACE(COMP_PS, "InactivePsWorkItemCallback() <---------\n"); +} + +void IPSEnter(struct net_device *dev) +{ + struct r8192_priv *priv = rtllib_priv(dev); + struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *) + &(priv->rtllib->PowerSaveControl); + enum rt_rf_power_state rtState; + + if (pPSC->bInactivePs) { + rtState = priv->rtllib->eRFPowerState; + if (rtState == eRfOn && !pPSC->bSwRfProcessing && + (priv->rtllib->state != RTLLIB_LINKED) && + (priv->rtllib->iw_mode != IW_MODE_MASTER)) { + RT_TRACE(COMP_PS, "IPSEnter(): Turn off RF.\n"); + pPSC->eInactivePowerState = eRfOff; + priv->isRFOff = true; + priv->bInPowerSaveMode = true; + InactivePsWorkItemCallback(dev); + } + } +} + +void IPSLeave(struct net_device *dev) +{ + struct r8192_priv *priv = rtllib_priv(dev); + struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *) + &(priv->rtllib->PowerSaveControl); + enum rt_rf_power_state rtState; + + if (pPSC->bInactivePs) { + rtState = priv->rtllib->eRFPowerState; + if (rtState != eRfOn && !pPSC->bSwRfProcessing && + priv->rtllib->RfOffReason <= RF_CHANGE_BY_IPS) { + RT_TRACE(COMP_PS, "IPSLeave(): Turn on RF.\n"); + pPSC->eInactivePowerState = eRfOn; + priv->bInPowerSaveMode = false; + InactivePsWorkItemCallback(dev); + } + } +} + +void IPSLeave_wq(void *data) +{ + struct rtllib_device *ieee = container_of_work_rsl(data, + struct rtllib_device, ips_leave_wq); + struct net_device *dev = ieee->dev; + struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev); + down(&priv->rtllib->ips_sem); + IPSLeave(dev); + up(&priv->rtllib->ips_sem); +} + +void rtllib_ips_leave_wq(struct net_device *dev) +{ + struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev); + enum rt_rf_power_state rtState; + rtState = priv->rtllib->eRFPowerState; + + if (priv->rtllib->PowerSaveControl.bInactivePs) { + if (rtState == eRfOff) { + if (priv->rtllib->RfOffReason > RF_CHANGE_BY_IPS) { + RT_TRACE(COMP_ERR, "%s(): RF is OFF.\n", + __func__); + return; + } else { + printk(KERN_INFO "=========>%s(): IPSLeave\n", + __func__); + queue_work_rsl(priv->rtllib->wq, + &priv->rtllib->ips_leave_wq); + } + } + } +} + +void rtllib_ips_leave(struct net_device *dev) +{ + struct r8192_priv *priv = (struct r8192_priv *)rtllib_priv(dev); + down(&priv->rtllib->ips_sem); + IPSLeave(dev); + up(&priv->rtllib->ips_sem); +} + +static bool MgntActSet_802_11_PowerSaveMode(struct net_device *dev, + u8 rtPsMode) +{ + struct r8192_priv *priv = rtllib_priv(dev); + + if (priv->rtllib->iw_mode == IW_MODE_ADHOC) + return false; + + RT_TRACE(COMP_LPS, "%s(): set ieee->ps = %x\n", __func__, rtPsMode); + if (!priv->ps_force) + priv->rtllib->ps = rtPsMode; + if (priv->rtllib->sta_sleep != LPS_IS_WAKE && + rtPsMode == RTLLIB_PS_DISABLED) { + unsigned long flags; + + rtl8192_hw_wakeup(dev); + priv->rtllib->sta_sleep = LPS_IS_WAKE; + + spin_lock_irqsave(&(priv->rtllib->mgmt_tx_lock), flags); + RT_TRACE(COMP_DBG, "LPS leave: notify AP we are awaked" + " ++++++++++ SendNullFunctionData\n"); + rtllib_sta_ps_send_null_frame(priv->rtllib, 0); + spin_unlock_irqrestore(&(priv->rtllib->mgmt_tx_lock), flags); + } + + return true; +} + +void LeisurePSEnter(struct net_device *dev) +{ + struct r8192_priv *priv = rtllib_priv(dev); + struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *) + &(priv->rtllib->PowerSaveControl); + + RT_TRACE(COMP_PS, "LeisurePSEnter()...\n"); + RT_TRACE(COMP_PS, "pPSC->bLeisurePs = %d, ieee->ps = %d,pPSC->LpsIdle" + "Count is %d,RT_CHECK_FOR_HANG_PERIOD is %d\n", + pPSC->bLeisurePs, priv->rtllib->ps, pPSC->LpsIdleCount, + RT_CHECK_FOR_HANG_PERIOD); + + if (!((priv->rtllib->iw_mode == IW_MODE_INFRA) && + (priv->rtllib->state == RTLLIB_LINKED)) + || (priv->rtllib->iw_mode == IW_MODE_ADHOC) || + (priv->rtllib->iw_mode == IW_MODE_MASTER)) + return; + + if (pPSC->bLeisurePs) { + if (pPSC->LpsIdleCount >= RT_CHECK_FOR_HANG_PERIOD) { + + if (priv->rtllib->ps == RTLLIB_PS_DISABLED) { + + RT_TRACE(COMP_LPS, "LeisurePSEnter(): Enter " + "802.11 power save mode...\n"); + + if (!pPSC->bFwCtrlLPS) { + if (priv->rtllib->SetFwCmdHandler) + priv->rtllib->SetFwCmdHandler( + dev, FW_CMD_LPS_ENTER); + } + MgntActSet_802_11_PowerSaveMode(dev, + RTLLIB_PS_MBCAST | + RTLLIB_PS_UNICAST); + } + } else + pPSC->LpsIdleCount++; + } +} + +void LeisurePSLeave(struct net_device *dev) +{ + struct r8192_priv *priv = rtllib_priv(dev); + struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *) + &(priv->rtllib->PowerSaveControl); + + + RT_TRACE(COMP_PS, "LeisurePSLeave()...\n"); + RT_TRACE(COMP_PS, "pPSC->bLeisurePs = %d, ieee->ps = %d\n", + pPSC->bLeisurePs, priv->rtllib->ps); + + if (pPSC->bLeisurePs) { + if (priv->rtllib->ps != RTLLIB_PS_DISABLED) { + RT_TRACE(COMP_LPS, "LeisurePSLeave(): Busy Traffic , " + "Leave 802.11 power save..\n"); + MgntActSet_802_11_PowerSaveMode(dev, + RTLLIB_PS_DISABLED); + + if (!pPSC->bFwCtrlLPS) { + if (priv->rtllib->SetFwCmdHandler) + priv->rtllib->SetFwCmdHandler(dev, + FW_CMD_LPS_LEAVE); + } + } + } +} |