static void rtl_op_sw_scan_start(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); RT_TRACE(COMP_MAC80211, DBG_LOUD, ("\n")); mac->act_scanning = true; /*rtlpriv->btcops->btc_scan_notify(rtlpriv, 0); */ if (rtlpriv->link_info.b_higher_busytraffic) { mac->skip_scan = true; return; } if (rtlpriv->dm.supp_phymode_switch) { if (rtlpriv->cfg->ops->check_switch_to_dmdp) rtlpriv->cfg->ops->check_switch_to_dmdp(hw); } if (mac->link_state == MAC80211_LINKED) { rtl_lps_leave(hw); mac->link_state = MAC80211_LINKED_SCANNING; } else { rtl_ips_nic_on(hw); } /* Dul mac */ rtlpriv->rtlhal.b_load_imrandiqk_setting_for2g = false; rtlpriv->cfg->ops->led_control(hw, LED_CTL_SITE_SURVEY); rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_BACKUP); }
void rtl_lps_change_work_callback(struct work_struct *work) { struct rtl_works *rtlworks = container_of(work, struct rtl_works, lps_change_work); struct ieee80211_hw *hw = rtlworks->hw; struct rtl_priv *rtlpriv = rtl_priv(hw); if (rtlpriv->enter_ps) rtl_lps_enter(hw); else rtl_lps_leave(hw); }
static void rtl_op_sw_scan_start(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); mac->act_scanning = true; RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("\n")); if (mac->link_state == MAC80211_LINKED) { rtl_lps_leave(hw); mac->link_state = MAC80211_LINKED_SCANNING; } else { rtl_ips_nic_on(hw); } /* Dual mac */ rtlpriv->rtlhal.load_imrandiqk_setting_for2g = false; rtlpriv->cfg->ops->led_control(hw, LED_CTL_SITE_SURVEY); rtlpriv->cfg->ops->scan_operation_backup(hw, SCAN_OPT_BACKUP); }
static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); int rx_queue_idx = RTL_PCI_RX_MPDU_QUEUE; struct ieee80211_rx_status rx_status = { 0 }; unsigned int count = rtlpci->rxringcount; u8 own; u8 tmp_one; u32 bufferaddress; bool unicast = false; struct rtl_stats stats = { .signal = 0, .noise = -98, .rate = 0, }; /*RX NORMAL PKT */ while (count--) { /*rx descriptor */ struct rtl_rx_desc *pdesc = &rtlpci->rx_ring[rx_queue_idx].desc[ rtlpci->rx_ring[rx_queue_idx].idx]; /*rx pkt */ struct sk_buff *skb = rtlpci->rx_ring[rx_queue_idx].rx_buf[ rtlpci->rx_ring[rx_queue_idx].idx]; own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc, false, HW_DESC_OWN); if (own) { /*wait data to be filled by hardware */ return; } else { struct ieee80211_hdr *hdr; __le16 fc; struct sk_buff *new_skb = NULL; rtlpriv->cfg->ops->query_rx_desc(hw, &stats, &rx_status, (u8 *) pdesc, skb); pci_unmap_single(rtlpci->pdev, *((dma_addr_t *) skb->cb), rtlpci->rxbuffersize, PCI_DMA_FROMDEVICE); skb_put(skb, rtlpriv->cfg->ops->get_desc((u8 *) pdesc, false, HW_DESC_RXPKT_LEN)); skb_reserve(skb, stats.rx_drvinfo_size + stats.rx_bufshift); /* *NOTICE This can not be use for mac80211, *this is done in mac80211 code, *if you done here sec DHCP will fail *skb_trim(skb, skb->len - 4); */ hdr = (struct ieee80211_hdr *)(skb->data); fc = hdr->frame_control; if (!stats.crc) { memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); if (is_broadcast_ether_addr(hdr->addr1)) ;/*TODO*/ else { if (is_multicast_ether_addr(hdr->addr1)) ;/*TODO*/ else { unicast = true; rtlpriv->stats.rxbytesunicast += skb->len; } } rtl_is_special_data(hw, skb, false); if (ieee80211_is_data(fc)) { rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX); if (unicast) rtlpriv->link_info. num_rx_inperiod++; } if (unlikely(!rtl_action_proc(hw, skb, false))) { dev_kfree_skb_any(skb); } else { struct sk_buff *uskb = NULL; u8 *pdata; uskb = dev_alloc_skb(skb->len + 128); if (!uskb) { RT_TRACE(rtlpriv, (COMP_INTR | COMP_RECV), DBG_EMERG, ("can't alloc rx skb\n")); goto done; } memcpy(IEEE80211_SKB_RXCB(uskb), &rx_status, sizeof(rx_status)); pdata = (u8 *)skb_put(uskb, skb->len); memcpy(pdata, skb->data, skb->len); dev_kfree_skb_any(skb); ieee80211_rx_irqsafe(hw, uskb); } } else { dev_kfree_skb_any(skb); } if (((rtlpriv->link_info.num_rx_inperiod + rtlpriv->link_info.num_tx_inperiod) > 8) || (rtlpriv->link_info.num_rx_inperiod > 2)) { rtl_lps_leave(hw); } new_skb = dev_alloc_skb(rtlpci->rxbuffersize); if (unlikely(!new_skb)) { RT_TRACE(rtlpriv, (COMP_INTR | COMP_RECV), DBG_EMERG, ("can't alloc skb for rx\n")); goto done; } skb = new_skb; /*skb->dev = dev; */ rtlpci->rx_ring[rx_queue_idx].rx_buf[rtlpci-> rx_ring [rx_queue_idx]. idx] = skb; *((dma_addr_t *) skb->cb) = pci_map_single(rtlpci->pdev, skb_tail_pointer(skb), rtlpci->rxbuffersize, PCI_DMA_FROMDEVICE); } done: bufferaddress = (u32)(*((dma_addr_t *) skb->cb)); tmp_one = 1; rtlpriv->cfg->ops->set_desc((u8 *) pdesc, false, HW_DESC_RXBUFF_ADDR, (u8 *)&bufferaddress); rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXOWN, (u8 *)&tmp_one); rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXPKT_LEN, (u8 *)&rtlpci->rxbuffersize); if (rtlpci->rx_ring[rx_queue_idx].idx == rtlpci->rxringcount - 1) rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXERO, (u8 *)&tmp_one); rtlpci->rx_ring[rx_queue_idx].idx = (rtlpci->rx_ring[rx_queue_idx].idx + 1) % rtlpci->rxringcount; } } static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id) { struct ieee80211_hw *hw = dev_id; struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); unsigned long flags; u32 inta = 0; u32 intb = 0; if (rtlpci->irq_enabled == 0) return IRQ_HANDLED; spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags); /*read ISR: 4/8bytes */ rtlpriv->cfg->ops->interrupt_recognized(hw, &inta, &intb); /*Shared IRQ or HW disappared */ if (!inta || inta == 0xffff) goto done; /*<1> beacon related */ if (inta & rtlpriv->cfg->maps[RTL_IMR_TBDOK]) { RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("beacon ok interrupt!\n")); } if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TBDER])) { RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("beacon err interrupt!\n")); } if (inta & rtlpriv->cfg->maps[RTL_IMR_BDOK]) { RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("beacon interrupt!\n")); } if (inta & rtlpriv->cfg->maps[RTL_IMR_BcnInt]) { RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("prepare beacon for interrupt!\n")); tasklet_schedule(&rtlpriv->works.irq_prepare_bcn_tasklet); } /*<3> Tx related */ if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TXFOVW])) RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("IMR_TXFOVW!\n")); if (inta & rtlpriv->cfg->maps[RTL_IMR_MGNTDOK]) { RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("Manage ok interrupt!\n")); _rtl_pci_tx_isr(hw, MGNT_QUEUE); } if (inta & rtlpriv->cfg->maps[RTL_IMR_HIGHDOK]) { RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("HIGH_QUEUE ok interrupt!\n")); _rtl_pci_tx_isr(hw, HIGH_QUEUE); } if (inta & rtlpriv->cfg->maps[RTL_IMR_BKDOK]) { rtlpriv->link_info.num_tx_inperiod++; RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("BK Tx OK interrupt!\n")); _rtl_pci_tx_isr(hw, BK_QUEUE); } if (inta & rtlpriv->cfg->maps[RTL_IMR_BEDOK]) { rtlpriv->link_info.num_tx_inperiod++; RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("BE TX OK interrupt!\n")); _rtl_pci_tx_isr(hw, BE_QUEUE); } if (inta & rtlpriv->cfg->maps[RTL_IMR_VIDOK]) { rtlpriv->link_info.num_tx_inperiod++; RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("VI TX OK interrupt!\n")); _rtl_pci_tx_isr(hw, VI_QUEUE); } if (inta & rtlpriv->cfg->maps[RTL_IMR_VODOK]) { rtlpriv->link_info.num_tx_inperiod++; RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("Vo TX OK interrupt!\n")); _rtl_pci_tx_isr(hw, VO_QUEUE); } /*<2> Rx related */ if (inta & rtlpriv->cfg->maps[RTL_IMR_ROK]) { RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("Rx ok interrupt!\n")); tasklet_schedule(&rtlpriv->works.irq_tasklet); } if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RDU])) { RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("rx descriptor unavailable!\n")); tasklet_schedule(&rtlpriv->works.irq_tasklet); } if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RXFOVW])) { RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("rx overflow !\n")); tasklet_schedule(&rtlpriv->works.irq_tasklet); } spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); return IRQ_HANDLED; done: spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); return IRQ_HANDLED; } static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw) { _rtl_pci_rx_interrupt(hw); }
static void _rtl_pci_tx_isr(struct ieee80211_hw *hw, int prio) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio]; while (skb_queue_len(&ring->queue)) { struct rtl_tx_desc *entry = &ring->desc[ring->idx]; struct sk_buff *skb; struct ieee80211_tx_info *info; u8 own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) entry, true, HW_DESC_OWN); /* *beacon packet will only use the first *descriptor defautly,and the own may not *be cleared by the hardware */ if (own) return; ring->idx = (ring->idx + 1) % ring->entries; skb = __skb_dequeue(&ring->queue); pci_unmap_single(rtlpci->pdev, rtlpriv->cfg->ops-> get_desc((u8 *) entry, true, HW_DESC_TXBUFF_ADDR), skb->len, PCI_DMA_TODEVICE); RT_TRACE(rtlpriv, (COMP_INTR | COMP_SEND), DBG_TRACE, ("new ring->idx:%d, " "free: skb_queue_len:%d, free: seq:%x\n", ring->idx, skb_queue_len(&ring->queue), *(u16 *) (skb->data + 22))); info = IEEE80211_SKB_CB(skb); ieee80211_tx_info_clear_status(info); info->flags |= IEEE80211_TX_STAT_ACK; /*info->status.rates[0].count = 1; */ ieee80211_tx_status_irqsafe(hw, skb); if ((ring->entries - skb_queue_len(&ring->queue)) == 2) { RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD, ("more desc left, wake" "skb_queue@%d,ring->idx = %d," "skb_queue_len = 0x%d\n", prio, ring->idx, skb_queue_len(&ring->queue))); ieee80211_wake_queue(hw, skb_get_queue_mapping (skb)); } skb = NULL; } if (((rtlpriv->link_info.num_rx_inperiod + rtlpriv->link_info.num_tx_inperiod) > 8) || (rtlpriv->link_info.num_rx_inperiod > 2)) { rtl_lps_leave(hw); } }
static void rtl_op_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_bss_conf *bss_conf, u32 changed) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_hal *rtlhal = rtl_hal(rtlpriv); struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); struct ieee80211_sta *sta = NULL; mutex_lock(&rtlpriv->locks.conf_mutex); if ((vif->type == NL80211_IFTYPE_ADHOC) || (vif->type == NL80211_IFTYPE_AP) || (vif->type == NL80211_IFTYPE_MESH_POINT)) { if ((changed & BSS_CHANGED_BEACON) || (changed & BSS_CHANGED_BEACON_ENABLED && bss_conf->enable_beacon)) { if (mac->beacon_enabled == 0) { RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG, ("BSS_CHANGED_BEACON_ENABLED\n")); /*start hw beacon interrupt. */ /*rtlpriv->cfg->ops->set_bcn_reg(hw); */ mac->beacon_enabled = 1; rtlpriv->cfg->ops->update_interrupt_mask(hw, rtlpriv->cfg->maps [RTL_IBSS_INT_MASKS], 0); if (rtlpriv->cfg->ops->linked_set_reg) rtlpriv->cfg->ops->linked_set_reg(hw); } } if ((changed & BSS_CHANGED_BEACON_ENABLED && !bss_conf->enable_beacon)) { if (mac->beacon_enabled == 1) { RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG, ("ADHOC DISABLE BEACON\n")); mac->beacon_enabled = 0; rtlpriv->cfg->ops->update_interrupt_mask(hw, 0, rtlpriv->cfg->maps [RTL_IBSS_INT_MASKS]); } } if (changed & BSS_CHANGED_BEACON_INT) { RT_TRACE(rtlpriv, COMP_BEACON, DBG_TRACE, ("BSS_CHANGED_BEACON_INT\n")); mac->beacon_interval = bss_conf->beacon_int; rtlpriv->cfg->ops->set_bcn_intv(hw); } } /*TODO: reference to enum ieee80211_bss_change */ if (changed & BSS_CHANGED_ASSOC) { if (bss_conf->assoc) { /* we should reset all sec info & cam * before set cam after linked, we should not * reset in disassoc, that will cause tkip->wep * fail because some flag will be wrong */ /* reset sec info */ rtl_cam_reset_sec_info(hw); /* reset cam to fix wep fail issue * when change from wpa to wep */ rtl_cam_reset_all_entry(hw); mac->link_state = MAC80211_LINKED; mac->cnt_after_linked = 0; mac->assoc_id = bss_conf->aid; memcpy(mac->bssid, bss_conf->bssid, 6); if (rtlpriv->cfg->ops->linked_set_reg) rtlpriv->cfg->ops->linked_set_reg(hw); if (mac->opmode == NL80211_IFTYPE_STATION && sta) rtlpriv->cfg->ops->update_rate_tbl(hw, sta, 0); RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG, ("BSS_CHANGED_ASSOC\n")); } else { if (mac->link_state == MAC80211_LINKED) rtl_lps_leave(hw); mac->link_state = MAC80211_NOLINK; memset(mac->bssid, 0, 6); mac->vendor = PEER_UNKNOWN; RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG, ("BSS_CHANGED_UN_ASSOC\n")); } } if (changed & BSS_CHANGED_ERP_CTS_PROT) { RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE, ("BSS_CHANGED_ERP_CTS_PROT\n")); mac->use_cts_protect = bss_conf->use_cts_prot; } if (changed & BSS_CHANGED_ERP_PREAMBLE) { RT_TRACE(rtlpriv, COMP_MAC80211, DBG_LOUD, ("BSS_CHANGED_ERP_PREAMBLE use short preamble:%x\n", bss_conf->use_short_preamble)); mac->short_preamble = bss_conf->use_short_preamble; rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_ACK_PREAMBLE, (u8 *) (&mac->short_preamble)); } if (changed & BSS_CHANGED_ERP_SLOT) { RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE, ("BSS_CHANGED_ERP_SLOT\n")); if (bss_conf->use_short_slot) mac->slot_time = RTL_SLOT_TIME_9; else mac->slot_time = RTL_SLOT_TIME_20; rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SLOT_TIME, (u8 *) (&mac->slot_time)); } if (changed & BSS_CHANGED_HT) { RT_TRACE(rtlpriv, COMP_MAC80211, DBG_TRACE, ("BSS_CHANGED_HT\n")); rcu_read_lock(); sta = get_sta(hw, vif, (u8 *)bss_conf->bssid); if (sta) { if (sta->ht_cap.ampdu_density > mac->current_ampdu_density) mac->current_ampdu_density = sta->ht_cap.ampdu_density; if (sta->ht_cap.ampdu_factor < mac->current_ampdu_factor) mac->current_ampdu_factor = sta->ht_cap.ampdu_factor; } rcu_read_unlock(); rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SHORTGI_DENSITY, (u8 *) (&mac->max_mss_density)); rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_FACTOR, &mac->current_ampdu_factor); rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_AMPDU_MIN_SPACE, &mac->current_ampdu_density); } if (changed & BSS_CHANGED_BSSID) { u32 basic_rates; rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BSSID, (u8 *) bss_conf->bssid); RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG, (MAC_FMT "\n", MAC_ARG(bss_conf->bssid))); mac->vendor = PEER_UNKNOWN; memcpy(mac->bssid, bss_conf->bssid, 6); rtlpriv->cfg->ops->set_network_type(hw, vif->type); rcu_read_lock(); sta = get_sta(hw, vif, (u8 *)bss_conf->bssid); if (!sta) { rcu_read_unlock(); goto out; } if (rtlhal->current_bandtype == BAND_ON_5G) { mac->mode = WIRELESS_MODE_A; } else { if (sta->supp_rates[0] <= 0xf) mac->mode = WIRELESS_MODE_B; else mac->mode = WIRELESS_MODE_G; } if (sta->ht_cap.ht_supported) { if (rtlhal->current_bandtype == BAND_ON_2_4G) mac->mode = WIRELESS_MODE_N_24G; else mac->mode = WIRELESS_MODE_N_5G; } /* just station need it, because ibss & ap mode will * set in sta_add, and will be NULL here */ if (mac->opmode == NL80211_IFTYPE_STATION) { struct rtl_sta_info *sta_entry; sta_entry = (struct rtl_sta_info *) sta->drv_priv; sta_entry->wireless_mode = mac->mode; } if (sta->ht_cap.ht_supported) { mac->ht_enable = true; /* * for cisco 1252 bw20 it's wrong * if (ht_cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) { * mac->bw_40 = true; * } * */ } if (changed & BSS_CHANGED_BASIC_RATES) { /* for 5G must << RATE_6M_INDEX=4, * because 5G have no cck rate*/ if (rtlhal->current_bandtype == BAND_ON_5G) basic_rates = sta->supp_rates[1] << 4; else basic_rates = sta->supp_rates[0]; mac->basic_rates = basic_rates; rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_BASIC_RATE, (u8 *) (&basic_rates)); } rcu_read_unlock(); } /* * For FW LPS: * To tell firmware we have connected * to an AP. For 92SE/CE power save v2. */ if (changed & BSS_CHANGED_ASSOC) { if (bss_conf->assoc) { if (ppsc->fwctrl_lps) { u8 mstatus = RT_MEDIA_CONNECT; rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_H2C_FW_JOINBSSRPT, (u8 *) (&mstatus)); ppsc->report_linked = true; } } else { if (ppsc->fwctrl_lps) { u8 mstatus = RT_MEDIA_DISCONNECT; rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_H2C_FW_JOINBSSRPT, (u8 *)(&mstatus)); ppsc->report_linked = false; } } } out: mutex_unlock(&rtlpriv->locks.conf_mutex); }
/********************************************************* * * wq & timer callback functions * *********************************************************/ void rtl_watchdog_wq_callback(void *data) { struct rtl_works *rtlworks = container_of_dwork_rtl(data, struct rtl_works, watchdog_wq); struct ieee80211_hw *hw = rtlworks->hw; struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); bool b_busytraffic = false; bool b_higher_busytraffic = false; bool b_higher_busyrxtraffic = false; bool b_higher_busytxtraffic = false; u8 idx = 0; u32 rx_cnt_inp4eriod = 0; u32 tx_cnt_inp4eriod = 0; u32 aver_rx_cnt_inperiod = 0; u32 aver_tx_cnt_inperiod = 0; bool benter_ps = false; if (is_hal_stop(rtlhal)) return; /* <1> Determine if action frame is allowed */ if (mac->link_state > MAC80211_NOLINK) { if (mac->cnt_after_linked < 20) mac->cnt_after_linked++; } else { mac->cnt_after_linked = 0; } /* <2> DM */ rtlpriv->cfg->ops->dm_watchdog(hw); /* *<3> to check if traffic busy, if * busytraffic we don't change channel */ if (mac->link_state >= MAC80211_LINKED) { /* (1) get aver_rx_cnt_inperiod & aver_tx_cnt_inperiod */ for (idx = 0; idx <= 2; idx++) { rtlpriv->link_info.num_rx_in4period[idx] = rtlpriv->link_info.num_rx_in4period[idx + 1]; rtlpriv->link_info.num_tx_in4period[idx] = rtlpriv->link_info.num_tx_in4period[idx + 1]; } rtlpriv->link_info.num_rx_in4period[3] = rtlpriv->link_info.num_rx_inperiod; rtlpriv->link_info.num_tx_in4period[3] = rtlpriv->link_info.num_tx_inperiod; for (idx = 0; idx <= 3; idx++) { rx_cnt_inp4eriod += rtlpriv->link_info.num_rx_in4period[idx]; tx_cnt_inp4eriod += rtlpriv->link_info.num_tx_in4period[idx]; } aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4; aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4; /* (2) check traffic busy */ if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) b_busytraffic = true; /* Higher Tx/Rx data. */ if (aver_rx_cnt_inperiod > 4000 || aver_tx_cnt_inperiod > 4000) { b_higher_busytraffic = true; /* Extremely high Rx data. */ if (aver_rx_cnt_inperiod > 5000) b_higher_busyrxtraffic = true; else b_higher_busytxtraffic = false; } if (((rtlpriv->link_info.num_rx_inperiod + rtlpriv->link_info.num_tx_inperiod) > 8) || (rtlpriv->link_info.num_rx_inperiod > 2)) benter_ps = false; else benter_ps = true; /* LeisurePS only work in infra mode. */ if (benter_ps) rtl_lps_enter(hw); else rtl_lps_leave(hw); } rtlpriv->link_info.num_rx_inperiod = 0; rtlpriv->link_info.num_tx_inperiod = 0; rtlpriv->link_info.b_busytraffic = b_busytraffic; rtlpriv->link_info.b_higher_busytraffic = b_higher_busytraffic; rtlpriv->link_info.b_higher_busyrxtraffic = b_higher_busyrxtraffic; }
/*should call before software enc*/ u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data); struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); u16 fc = le16_to_cpu(hdr->frame_control); u16 ether_type; u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb); const struct iphdr *ip; if (!ieee80211_is_data(fc)) goto end; if (ieee80211_is_nullfunc(fc)) return true; ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len + SNAP_SIZE + PROTOC_TYPE_SIZE); ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE); ether_type = ntohs(ether_type); if (ETH_P_IP == ether_type) { if (IPPROTO_UDP == ip->protocol) { struct udphdr *udp = (struct udphdr *)((u8 *) ip + (ip->ihl << 2)); if (((((u8 *) udp)[1] == 68) && (((u8 *) udp)[3] == 67)) || ((((u8 *) udp)[1] == 67) && (((u8 *) udp)[3] == 68))) { /* * 68 : UDP BOOTP client * 67 : UDP BOOTP server */ RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, ("dhcp %s !!\n", (is_tx) ? "Tx" : "Rx")); if (is_tx) { rtl_lps_leave(hw); ppsc->last_delaylps_stamp_jiffies = jiffies; } return true; } } } else if (ETH_P_ARP == ether_type) { if (is_tx) { rtl_lps_leave(hw); ppsc->last_delaylps_stamp_jiffies = jiffies; } return true; } else if (ETH_P_PAE == ether_type) { RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, ("802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx")); if (is_tx) { rtl_lps_leave(hw); ppsc->last_delaylps_stamp_jiffies = jiffies; } return true; } else if (0x86DD == ether_type) { return true; } end: return false; }
u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); __le16 fc = rtl_get_fc(skb); u16 ether_type; u8 mac_hdr_len = ieee80211_get_hdrlen_from_skb(skb); const struct iphdr *ip; if (!ieee80211_is_data(fc)) return false; ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len + SNAP_SIZE + PROTOC_TYPE_SIZE); ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE); if (ETH_P_IP == ether_type) { if (IPPROTO_UDP == ip->protocol) { struct udphdr *udp = (struct udphdr *)((u8 *) ip + (ip->ihl << 2)); if (((((u8 *) udp)[1] == 68) && (((u8 *) udp)[3] == 67)) || ((((u8 *) udp)[1] == 67) && (((u8 *) udp)[3] == 68))) { RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, "dhcp %s !!\n", is_tx ? "Tx" : "Rx"); if (is_tx) { rtl_lps_leave(hw); ppsc->last_delaylps_stamp_jiffies = jiffies; } return true; } } } else if (ETH_P_ARP == ether_type) { if (is_tx) { rtl_lps_leave(hw); ppsc->last_delaylps_stamp_jiffies = jiffies; } return true; } else if (ETH_P_PAE == ether_type) { RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG, "802.1X %s EAPOL pkt!!\n", is_tx ? "Tx" : "Rx"); if (is_tx) { rtl_lps_leave(hw); ppsc->last_delaylps_stamp_jiffies = jiffies; } return true; } else if (ETH_P_IPV6 == ether_type) { return true; } return false; }
void rtl_watchdog_wq_callback(void *data) { struct rtl_works *rtlworks = container_of_dwork_rtl(data, struct rtl_works, watchdog_wq); struct ieee80211_hw *hw = rtlworks->hw; struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); bool busytraffic = false; bool higher_busytraffic = false; bool higher_busyrxtraffic = false; u8 idx, tid; u32 rx_cnt_inp4eriod = 0; u32 tx_cnt_inp4eriod = 0; u32 aver_rx_cnt_inperiod = 0; u32 aver_tx_cnt_inperiod = 0; u32 aver_tidtx_inperiod[MAX_TID_COUNT] = {0}; u32 tidtx_inp4eriod[MAX_TID_COUNT] = {0}; bool enter_ps = false; if (is_hal_stop(rtlhal)) return; if (mac->link_state > MAC80211_NOLINK) { if (mac->cnt_after_linked < 20) mac->cnt_after_linked++; } else { mac->cnt_after_linked = 0; } if (mac->link_state >= MAC80211_LINKED) { for (idx = 0; idx <= 2; idx++) { rtlpriv->link_info.num_rx_in4period[idx] = rtlpriv->link_info.num_rx_in4period[idx + 1]; rtlpriv->link_info.num_tx_in4period[idx] = rtlpriv->link_info.num_tx_in4period[idx + 1]; } rtlpriv->link_info.num_rx_in4period[3] = rtlpriv->link_info.num_rx_inperiod; rtlpriv->link_info.num_tx_in4period[3] = rtlpriv->link_info.num_tx_inperiod; for (idx = 0; idx <= 3; idx++) { rx_cnt_inp4eriod += rtlpriv->link_info.num_rx_in4period[idx]; tx_cnt_inp4eriod += rtlpriv->link_info.num_tx_in4period[idx]; } aver_rx_cnt_inperiod = rx_cnt_inp4eriod / 4; aver_tx_cnt_inperiod = tx_cnt_inp4eriod / 4; if (aver_rx_cnt_inperiod > 100 || aver_tx_cnt_inperiod > 100) busytraffic = true; if (aver_rx_cnt_inperiod > 4000 || aver_tx_cnt_inperiod > 4000) { higher_busytraffic = true; if (aver_rx_cnt_inperiod > 5000) higher_busyrxtraffic = true; } for (tid = 0; tid <= 7; tid++) { for (idx = 0; idx <= 2; idx++) rtlpriv->link_info.tidtx_in4period[tid][idx] = rtlpriv->link_info.tidtx_in4period[tid] [idx + 1]; rtlpriv->link_info.tidtx_in4period[tid][3] = rtlpriv->link_info.tidtx_inperiod[tid]; for (idx = 0; idx <= 3; idx++) tidtx_inp4eriod[tid] += rtlpriv->link_info.tidtx_in4period[tid][idx]; aver_tidtx_inperiod[tid] = tidtx_inp4eriod[tid] / 4; if (aver_tidtx_inperiod[tid] > 5000) rtlpriv->link_info.higher_busytxtraffic[tid] = true; else rtlpriv->link_info.higher_busytxtraffic[tid] = false; } if (((rtlpriv->link_info.num_rx_inperiod + rtlpriv->link_info.num_tx_inperiod) > 8) || (rtlpriv->link_info.num_rx_inperiod > 2)) enter_ps = false; else enter_ps = true; if (enter_ps) rtl_lps_enter(hw); else rtl_lps_leave(hw); } rtlpriv->link_info.num_rx_inperiod = 0; rtlpriv->link_info.num_tx_inperiod = 0; for (tid = 0; tid <= 7; tid++) rtlpriv->link_info.tidtx_inperiod[tid] = 0; rtlpriv->link_info.busytraffic = busytraffic; rtlpriv->link_info.higher_busytraffic = higher_busytraffic; rtlpriv->link_info.higher_busyrxtraffic = higher_busyrxtraffic; rtlpriv->cfg->ops->dm_watchdog(hw); }