diff options
author | david woo <xinhua_wu@realsil.com.cn> | 2009-12-22 09:40:36 -0800 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-03 16:42:30 -0800 |
commit | 65a4378471510787e080188f933913315f1afa0c (patch) | |
tree | f28d6d19bf4cdfa0722ef7284365f1b787f52d8a /drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c | |
parent | 789d9dbdad5cb24fbf0c0e4fa5c5f1b792e4e81e (diff) |
Staging: rtl9192e: fix power usage issues
This patch should allow the driver to consume a lot less power.
Signed-off-by: david woo <xinhua_wu@realsil.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c')
-rw-r--r-- | drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c | 244 |
1 files changed, 199 insertions, 45 deletions
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c index 9e923e29c455..ea96c4956930 100644 --- a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c +++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c @@ -646,7 +646,7 @@ void ieee80211_stop_send_beacons(struct ieee80211_device *ieee) void ieee80211_start_send_beacons(struct ieee80211_device *ieee) { if(ieee->start_send_beacons) - ieee->start_send_beacons(ieee->dev,ieee->basic_rate); + ieee->start_send_beacons(ieee->dev); if(ieee->softmac_features & IEEE_SOFTMAC_BEACONS) ieee80211_beacons_start(ieee); } @@ -686,6 +686,11 @@ void ieee80211_stop_scan(struct ieee80211_device *ieee) /* called with ieee->lock held */ void ieee80211_rtl_start_scan(struct ieee80211_device *ieee) { +#ifdef ENABLE_IPS + if(ieee->ieee80211_ips_leave_wq != NULL) + ieee->ieee80211_ips_leave_wq(ieee->dev); +#endif + #ifdef ENABLE_DOT11D if(IS_DOT11D_ENABLE(ieee) ) { @@ -1093,6 +1098,40 @@ struct sk_buff* ieee80211_null_func(struct ieee80211_device *ieee,short pwr) } +struct sk_buff* ieee80211_pspoll_func(struct ieee80211_device *ieee) +{ + struct sk_buff *skb; + struct ieee80211_pspoll_hdr* hdr; + +#ifdef USB_USE_ALIGNMENT + u32 Tmpaddr=0; + int alignment=0; + skb = dev_alloc_skb(sizeof(struct ieee80211_pspoll_hdr) + ieee->tx_headroom + USB_512B_ALIGNMENT_SIZE); +#else + skb = dev_alloc_skb(sizeof(struct ieee80211_pspoll_hdr)+ieee->tx_headroom); +#endif + if (!skb) + return NULL; + +#ifdef USB_USE_ALIGNMENT + Tmpaddr = (u32)skb->data; + alignment = Tmpaddr & 0x1ff; + skb_reserve(skb,(USB_512B_ALIGNMENT_SIZE - alignment)); +#endif + skb_reserve(skb, ieee->tx_headroom); + + hdr = (struct ieee80211_pspoll_hdr*)skb_put(skb,sizeof(struct ieee80211_pspoll_hdr)); + + memcpy(hdr->bssid, ieee->current_network.bssid, ETH_ALEN); + memcpy(hdr->ta, ieee->dev->dev_addr, ETH_ALEN); + + hdr->aid = cpu_to_le16(ieee->assoc_id | 0xc000); + hdr->frame_ctl = cpu_to_le16(IEEE80211_FTYPE_CTL |IEEE80211_STYPE_PSPOLL | IEEE80211_FCTL_PM); + + return skb; + +} + void ieee80211_resp_to_assoc_rq(struct ieee80211_device *ieee, u8* dest) { @@ -1582,6 +1621,11 @@ void ieee80211_associate_procedure_wq(struct ieee80211_device *ieee) { #endif ieee->sync_scan_hurryup = 1; +#ifdef ENABLE_IPS + if(ieee->ieee80211_ips_leave != NULL) + ieee->ieee80211_ips_leave(ieee->dev); +#endif + down(&ieee->wx_sem); if (ieee->data_hard_stop) @@ -1592,6 +1636,17 @@ void ieee80211_associate_procedure_wq(struct ieee80211_device *ieee) //ieee->set_chan(ieee->dev, ieee->current_network.channel); HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT); +#ifdef ENABLE_IPS + if(ieee->eRFPowerState == eRfOff) + { + if(ieee->ieee80211_ips_leave_wq != NULL) + ieee->ieee80211_ips_leave_wq(ieee->dev); + + up(&ieee->wx_sem); + return; + } +#endif + ieee->associate_seq = 1; ieee80211_associate_step1(ieee); @@ -1918,43 +1973,92 @@ void ieee80211_sta_ps_send_null_frame(struct ieee80211_device *ieee, short pwr) } +void ieee80211_sta_ps_send_pspoll_frame(struct ieee80211_device *ieee) +{ + + struct sk_buff *buf = ieee80211_pspoll_func(ieee); + + if (buf) + softmac_ps_mgmt_xmit(buf, ieee); + +} short ieee80211_sta_ps_sleep(struct ieee80211_device *ieee, u32 *time_h, u32 *time_l) { int timeout = ieee->ps_timeout; u8 dtim; - /*if(ieee->ps == IEEE80211_PS_DISABLED || - ieee->iw_mode != IW_MODE_INFRA || - ieee->state != IEEE80211_LINKED) + PRT_POWER_SAVE_CONTROL pPSC = (PRT_POWER_SAVE_CONTROL)(&(ieee->PowerSaveControl)); + if(ieee->LPSDelayCnt) + { + //printk("===============>Delay enter LPS for DHCP and ARP packets...\n"); + ieee->LPSDelayCnt --; return 0; - */ + } + dtim = ieee->current_network.dtim_data; - //printk("DTIM\n"); +// printk("%s():DTIM:%d\n",__FUNCTION__,dtim); if(!(dtim & IEEE80211_DTIM_VALID)) return 0; timeout = ieee->current_network.beacon_interval; //should we use ps_timeout value or beacon_interval //printk("VALID\n"); ieee->current_network.dtim_data = IEEE80211_DTIM_INVALID; - - if(dtim & ((IEEE80211_DTIM_UCAST | IEEE80211_DTIM_MBCAST)& ieee->ps)) + /* there's no need to nofity AP that I find you buffered with broadcast packet */ + if(dtim & (IEEE80211_DTIM_UCAST & ieee->ps)) return 2; - if(!time_after(jiffies, ieee->dev->trans_start + MSECS(timeout))) + if(!time_after(jiffies, ieee->dev->trans_start + MSECS(timeout))){ +// printk("%s():111Oh Oh ,it is not time out return 0\n",__FUNCTION__); return 0; - - if(!time_after(jiffies, ieee->last_rx_ps_time + MSECS(timeout))) + } + if(!time_after(jiffies, ieee->last_rx_ps_time + MSECS(timeout))){ +// printk("%s():222Oh Oh ,it is not time out return 0\n",__FUNCTION__); return 0; - + } if((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE ) && (ieee->mgmt_queue_tail != ieee->mgmt_queue_head)) return 0; if(time_l){ + if(ieee->bAwakePktSent == true) { + pPSC->LPSAwakeIntvl = 1;//tx wake one beacon + } else { + u8 MaxPeriod = 1; + + if(pPSC->LPSAwakeIntvl == 0) + pPSC->LPSAwakeIntvl = 1; + //pNdisCommon->RegLPSMaxIntvl /// 0x0 - eFastPs, 0xFF -DTIM, 0xNN - 0xNN * BeaconIntvl + if(pPSC->RegMaxLPSAwakeIntvl == 0) // Default (0x0 - eFastPs, 0xFF -DTIM, 0xNN - 0xNN * BeaconIntvl) + MaxPeriod = 1; // 1 Beacon interval + else if(pPSC->RegMaxLPSAwakeIntvl == 0xFF) // DTIM + MaxPeriod = ieee->current_network.dtim_period; + else + MaxPeriod = pPSC->RegMaxLPSAwakeIntvl; + pPSC->LPSAwakeIntvl = (pPSC->LPSAwakeIntvl >= MaxPeriod) ? MaxPeriod : (pPSC->LPSAwakeIntvl + 1); + } + { + u8 LPSAwakeIntvl_tmp = 0; + u8 period = ieee->current_network.dtim_period; + u8 count = ieee->current_network.tim.tim_count; + if(count == 0 ) { + if(pPSC->LPSAwakeIntvl > period) + LPSAwakeIntvl_tmp = period + (pPSC->LPSAwakeIntvl - period) -((pPSC->LPSAwakeIntvl-period)%period); + else + LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl; + + } else { + if(pPSC->LPSAwakeIntvl > ieee->current_network.tim.tim_count) + LPSAwakeIntvl_tmp = count + (pPSC->LPSAwakeIntvl - count) -((pPSC->LPSAwakeIntvl-count)%period); + else + LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;//ieee->current_network.tim.tim_count;//pPSC->LPSAwakeIntvl; + } + //printk("=========>%s()assoc_id:%d(%#x),bAwakePktSent:%d,DTIM:%d, sleep interval:%d, LPSAwakeIntvl_tmp:%d, count:%d\n",__func__,ieee->assoc_id,cpu_to_le16(ieee->assoc_id),ieee->bAwakePktSent,ieee->current_network.dtim_period,pPSC->LPSAwakeIntvl,LPSAwakeIntvl_tmp,count); + *time_l = ieee->current_network.last_dtim_sta_time[0] - + (ieee->current_network.beacon_interval); + + MSECS(ieee->current_network.beacon_interval * LPSAwakeIntvl_tmp); // * ieee->current_network.dtim_period) * 1000; } + } if(time_h){ *time_h = ieee->current_network.last_dtim_sta_time[1]; @@ -1982,6 +2086,8 @@ inline void ieee80211_sta_ps(struct ieee80211_device *ieee) ieee->state != IEEE80211_LINKED)){ // #warning CHECK_LOCK_HERE + printk("=====>%s(): no need to ps,wake up!! ieee->ps is %d,ieee->iw_mode is %d,ieee->state is %d\n", + __FUNCTION__,ieee->ps,ieee->iw_mode,ieee->state); spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2); ieee80211_sta_wakeup(ieee, 1); @@ -1991,27 +2097,27 @@ inline void ieee80211_sta_ps(struct ieee80211_device *ieee) sleep = ieee80211_sta_ps_sleep(ieee,&th, &tl); /* 2 wake, 1 sleep, 0 do nothing */ - if(sleep == 0) + if(sleep == 0)//it is not time out or dtim is not valid + { + //printk("===========>sleep is 0,do nothing\n"); goto out; - + } if(sleep == 1){ - - if(ieee->sta_sleep == 1) + //printk("===========>sleep is 1,to sleep\n"); + if(ieee->sta_sleep == 1){ + //printk("%s(1): sta_sleep = 1, sleep again ++++++++++ \n", __func__); ieee->enter_sleep_state(ieee->dev,th,tl); + } else if(ieee->sta_sleep == 0){ // printk("send null 1\n"); spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2); if(ieee->ps_is_queue_empty(ieee->dev)){ - - ieee->sta_sleep = 2; - ieee->ack_tx_to_ieee = 1; - + //printk("%s(2): sta_sleep = 0, notify AP we will sleeped ++++++++++ SendNullFunctionData\n", __func__); ieee80211_sta_ps_send_null_frame(ieee,1); - ieee->ps_th = th; ieee->ps_tl = tl; } @@ -2019,11 +2125,13 @@ inline void ieee80211_sta_ps(struct ieee80211_device *ieee) } + ieee->bAwakePktSent = false;//after null to power save we set it to false. not listen every beacon. }else if(sleep == 2){ -//#warning CHECK_LOCK_HERE + //printk("==========>sleep is 2,to wakeup\n"); spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2); + //printk("%s(3): pkt buffered in ap will awake ++++++++++ ieee80211_sta_wakeup\n", __func__); ieee80211_sta_wakeup(ieee,1); spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2); @@ -2038,9 +2146,19 @@ void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl) { if(ieee->sta_sleep == 0){ if(nl){ - printk("Warning: driver is probably failing to report TX ps error\n"); - ieee->ack_tx_to_ieee = 1; - ieee80211_sta_ps_send_null_frame(ieee, 0); + if(ieee->pHTInfo->IOTAction & HT_IOT_ACT_NULL_DATA_POWER_SAVING) + { + //printk("%s(1): notify AP we are awaked ++++++++++ SendNullFunctionData\n", __func__); + //printk("Warning: driver is probably failing to report TX ps error\n"); + ieee->ack_tx_to_ieee = 1; + ieee80211_sta_ps_send_null_frame(ieee, 0); + } + else + { + ieee->ack_tx_to_ieee = 1; + //printk("%s(2): notify AP we are awaked ++++++++++ Send PS-Poll\n", __func__); + ieee80211_sta_ps_send_pspoll_frame(ieee); + } } return; @@ -2048,12 +2166,27 @@ void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl) if(ieee->sta_sleep == 1) ieee->sta_wake_up(ieee->dev); + if(nl){ - ieee->sta_sleep = 0; + if(ieee->pHTInfo->IOTAction & HT_IOT_ACT_NULL_DATA_POWER_SAVING) + { + //printk("%s(3): notify AP we are awaked ++++++++++ SendNullFunctionData\n", __func__); + //printk("Warning: driver is probably failing to report TX ps error\n"); + ieee->ack_tx_to_ieee = 1; + ieee80211_sta_ps_send_null_frame(ieee, 0); + } + else + { + ieee->ack_tx_to_ieee = 1; + ieee->polling = true; + //printk("%s(4): notify AP we are awaked ++++++++++ Send PS-Poll\n", __func__); + //ieee80211_sta_ps_send_null_frame(ieee, 0); + ieee80211_sta_ps_send_pspoll_frame(ieee); + } - if(nl){ - ieee->ack_tx_to_ieee = 1; - ieee80211_sta_ps_send_null_frame(ieee, 0); + } else { + ieee->sta_sleep = 0; + ieee->polling = false; } } @@ -2067,23 +2200,30 @@ void ieee80211_ps_tx_ack(struct ieee80211_device *ieee, short success) /* Null frame with PS bit set */ if(success){ ieee->sta_sleep = 1; + //printk("notify AP we will sleep and send null ok, so sleep now++++++++++ enter_sleep_state\n"); ieee->enter_sleep_state(ieee->dev,ieee->ps_th,ieee->ps_tl); } - /* if the card report not success we can't be sure the AP - * has not RXed so we can't assume the AP believe us awake - */ - } - /* 21112005 - tx again null without PS bit if lost */ - else { + } else {/* 21112005 - tx again null without PS bit if lost */ if((ieee->sta_sleep == 0) && !success){ spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2); - ieee80211_sta_ps_send_null_frame(ieee, 0); + //ieee80211_sta_ps_send_null_frame(ieee, 0); + if(ieee->pHTInfo->IOTAction & HT_IOT_ACT_NULL_DATA_POWER_SAVING) + { + //printk("notify AP we will sleep but send bull failed, so resend++++++++++ SendNullFunctionData\n"); + ieee80211_sta_ps_send_null_frame(ieee, 0); + } + else + { + //printk("notify AP we are awaked but send pspoll failed, so resend++++++++++ Send PS-Poll\n"); + ieee80211_sta_ps_send_pspoll_frame(ieee); + } spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2); } } spin_unlock_irqrestore(&ieee->lock, flags); } + void ieee80211_process_action(struct ieee80211_device* ieee, struct sk_buff* skb) { struct ieee80211_hdr* header = (struct ieee80211_hdr*)skb->data; @@ -2227,7 +2367,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb, { if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) { - // WEP or TKIP encryption + // WEP or TKIP encryption if(IsHTHalfNmodeAPs(ieee)) { bSupportNmode = true; @@ -2238,7 +2378,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb, bSupportNmode = false; bHalfSupportNmode = false; } - printk("==========>to link with AP using SEC(%d, %d)", bSupportNmode, bHalfSupportNmode); + printk("==========>to link with AP using SEC(%d, %d)\n", bSupportNmode, bHalfSupportNmode); } } /* Dummy wirless mode setting to avoid encryption issue */ @@ -2574,6 +2714,7 @@ void ieee80211_start_ibss_wq(struct ieee80211_device *ieee) ieee->ssid_set = 1; } + ieee->state = IEEE80211_NOLINK; /* check if we have this cell in our network list */ ieee80211_softmac_check_all_nets(ieee); @@ -2705,6 +2846,10 @@ void ieee80211_start_bss(struct ieee80211_device *ieee) spin_lock_irqsave(&ieee->lock, flags); if (ieee->state == IEEE80211_NOLINK){ +#ifdef ENABLE_IPS + if(ieee->ieee80211_ips_leave_wq != NULL) + ieee->ieee80211_ips_leave_wq(ieee->dev); +#endif ieee->actscanning = true; ieee80211_rtl_start_scan(ieee); } @@ -2823,21 +2968,23 @@ struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee) return skb; } -void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee) +void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee, u8 shutdown) { ieee->sync_scan_hurryup = 1; down(&ieee->wx_sem); - ieee80211_stop_protocol(ieee); + ieee80211_stop_protocol(ieee, shutdown); up(&ieee->wx_sem); } -void ieee80211_stop_protocol(struct ieee80211_device *ieee) +void ieee80211_stop_protocol(struct ieee80211_device *ieee, u8 shutdown) { if (!ieee->proto_started) return; - ieee->proto_started = 0; + if(shutdown) + ieee->proto_started = 0; + ieee->proto_stoppping = 1; ieee80211_stop_send_beacons(ieee); del_timer_sync(&ieee->associate_timer); @@ -2849,6 +2996,8 @@ void ieee80211_stop_protocol(struct ieee80211_device *ieee) ieee80211_disassociate(ieee); RemoveAllTS(ieee); //added as we disconnect from the previous BSS, Remove all TS + + ieee->proto_stoppping = 0; } void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee) @@ -2894,6 +3043,8 @@ void ieee80211_start_protocol(struct ieee80211_device *ieee) ieee->init_wmmparam_flag = 0;//reinitialize AC_xx_PARAM registers. + ieee->state = IEEE80211_NOLINK; + /* if the user set the MAC of the ad-hoc cell and then * switch to managed mode, shall we make sure that association @@ -3013,7 +3164,9 @@ void ieee80211_softmac_init(struct ieee80211_device *ieee) #endif sema_init(&ieee->wx_sem, 1); sema_init(&ieee->scan_sem, 1); - +#ifdef ENABLE_IPS + sema_init(&ieee->ips_sem,1); +#endif spin_lock_init(&ieee->mgmt_tx_lock); spin_lock_init(&ieee->beacon_lock); @@ -3537,5 +3690,6 @@ EXPORT_SYMBOL_NOVERS(ieee80211_stop_scan); EXPORT_SYMBOL_NOVERS(ieee80211_send_probe_requests); EXPORT_SYMBOL_NOVERS(ieee80211_softmac_scan_syncro); EXPORT_SYMBOL_NOVERS(ieee80211_start_scan_syncro); +EXPORT_SYMBOL_NOVERS(ieee80211_sta_ps_send_null_frame); +EXPORT_SYMBOL_NOVERS(ieee80211_sta_ps_send_pspoll_frame); #endif -//EXPORT_SYMBOL(ieee80211_sta_ps_send_null_frame); |