| /****************************************************************************** |
| * |
| * Copyright(c) 2009-2012 Realtek Corporation. |
| * |
| * 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> |
| * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, |
| * Hsinchu 300, Taiwan. |
| * |
| * Larry Finger <Larry.Finger@lwfinger.net> |
| * |
| *****************************************************************************/ |
| |
| #include "wifi.h" |
| #include "core.h" |
| #include "pci.h" |
| #include "base.h" |
| #include "ps.h" |
| #include "efuse.h" |
| #include <linux/export.h> |
| |
| static const u16 pcibridge_vendors[PCI_BRIDGE_VENDOR_MAX] = { |
| PCI_VENDOR_ID_INTEL, |
| PCI_VENDOR_ID_ATI, |
| PCI_VENDOR_ID_AMD, |
| PCI_VENDOR_ID_SI |
| }; |
| |
| static const u8 ac_to_hwq[] = { |
| VO_QUEUE, |
| VI_QUEUE, |
| BE_QUEUE, |
| BK_QUEUE |
| }; |
| |
| static u8 _rtl_mac_to_hwqueue(struct ieee80211_hw *hw, |
| struct sk_buff *skb) |
| { |
| struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); |
| __le16 fc = rtl_get_fc(skb); |
| u8 queue_index = skb_get_queue_mapping(skb); |
| |
| if (unlikely(ieee80211_is_beacon(fc))) |
| return BEACON_QUEUE; |
| if (ieee80211_is_mgmt(fc)) |
| return MGNT_QUEUE; |
| if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) |
| if (ieee80211_is_nullfunc(fc)) |
| return HIGH_QUEUE; |
| |
| return ac_to_hwq[queue_index]; |
| } |
| |
| /* Update PCI dependent default settings*/ |
| static void _rtl_pci_update_default_setting(struct ieee80211_hw *hw) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); |
| struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor; |
| u8 init_aspm; |
| |
| ppsc->reg_rfps_level = 0; |
| ppsc->support_aspm = false; |
| |
| /*Update PCI ASPM setting */ |
| ppsc->const_amdpci_aspm = rtlpci->const_amdpci_aspm; |
| switch (rtlpci->const_pci_aspm) { |
| case 0: |
| /*No ASPM */ |
| break; |
| |
| case 1: |
| /*ASPM dynamically enabled/disable. */ |
| ppsc->reg_rfps_level |= RT_RF_LPS_LEVEL_ASPM; |
| break; |
| |
| case 2: |
| /*ASPM with Clock Req dynamically enabled/disable. */ |
| ppsc->reg_rfps_level |= (RT_RF_LPS_LEVEL_ASPM | |
| RT_RF_OFF_LEVL_CLK_REQ); |
| break; |
| |
| case 3: |
| /* |
| * Always enable ASPM and Clock Req |
| * from initialization to halt. |
| * */ |
| ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM); |
| ppsc->reg_rfps_level |= (RT_RF_PS_LEVEL_ALWAYS_ASPM | |
| RT_RF_OFF_LEVL_CLK_REQ); |
| break; |
| |
| case 4: |
| /* |
| * Always enable ASPM without Clock Req |
| * from initialization to halt. |
| * */ |
| ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM | |
| RT_RF_OFF_LEVL_CLK_REQ); |
| ppsc->reg_rfps_level |= RT_RF_PS_LEVEL_ALWAYS_ASPM; |
| break; |
| } |
| |
| ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC; |
| |
| /*Update Radio OFF setting */ |
| switch (rtlpci->const_hwsw_rfoff_d3) { |
| case 1: |
| if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM) |
| ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM; |
| break; |
| |
| case 2: |
| if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM) |
| ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM; |
| ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC; |
| break; |
| |
| case 3: |
| ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_PCI_D3; |
| break; |
| } |
| |
| /*Set HW definition to determine if it supports ASPM. */ |
| switch (rtlpci->const_support_pciaspm) { |
| case 0:{ |
| /*Not support ASPM. */ |
| bool support_aspm = false; |
| ppsc->support_aspm = support_aspm; |
| break; |
| } |
| case 1:{ |
| /*Support ASPM. */ |
| bool support_aspm = true; |
| bool support_backdoor = true; |
| ppsc->support_aspm = support_aspm; |
| |
| /*if (priv->oem_id == RT_CID_TOSHIBA && |
| !priv->ndis_adapter.amd_l1_patch) |
| support_backdoor = false; */ |
| |
| ppsc->support_backdoor = support_backdoor; |
| |
| break; |
| } |
| case 2: |
| /*ASPM value set by chipset. */ |
| if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL) { |
| bool support_aspm = true; |
| ppsc->support_aspm = support_aspm; |
| } |
| break; |
| default: |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, |
| "switch case not processed\n"); |
| break; |
| } |
| |
| /* toshiba aspm issue, toshiba will set aspm selfly |
| * so we should not set aspm in driver */ |
| pci_read_config_byte(rtlpci->pdev, 0x80, &init_aspm); |
| if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8192SE && |
| init_aspm == 0x43) |
| ppsc->support_aspm = false; |
| } |
| |
| static bool _rtl_pci_platform_switch_device_pci_aspm( |
| struct ieee80211_hw *hw, |
| u8 value) |
| { |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); |
| |
| if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192SE) |
| value |= 0x40; |
| |
| pci_write_config_byte(rtlpci->pdev, 0x80, value); |
| |
| return false; |
| } |
| |
| /*When we set 0x01 to enable clk request. Set 0x0 to disable clk req.*/ |
| static void _rtl_pci_switch_clk_req(struct ieee80211_hw *hw, u8 value) |
| { |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); |
| |
| pci_write_config_byte(rtlpci->pdev, 0x81, value); |
| |
| if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) |
| udelay(100); |
| } |
| |
| /*Disable RTL8192SE ASPM & Disable Pci Bridge ASPM*/ |
| static void rtl_pci_disable_aspm(struct ieee80211_hw *hw) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); |
| struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor; |
| u8 num4bytes = pcipriv->ndis_adapter.num4bytes; |
| /*Retrieve original configuration settings. */ |
| u8 linkctrl_reg = pcipriv->ndis_adapter.linkctrl_reg; |
| u16 pcibridge_linkctrlreg = pcipriv->ndis_adapter. |
| pcibridge_linkctrlreg; |
| u16 aspmlevel = 0; |
| u8 tmp_u1b = 0; |
| |
| if (!ppsc->support_aspm) |
| return; |
| |
| if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) { |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE, |
| "PCI(Bridge) UNKNOWN\n"); |
| |
| return; |
| } |
| |
| if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) { |
| RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ); |
| _rtl_pci_switch_clk_req(hw, 0x0); |
| } |
| |
| /*for promising device will in L0 state after an I/O. */ |
| pci_read_config_byte(rtlpci->pdev, 0x80, &tmp_u1b); |
| |
| /*Set corresponding value. */ |
| aspmlevel |= BIT(0) | BIT(1); |
| linkctrl_reg &= ~aspmlevel; |
| pcibridge_linkctrlreg &= ~(BIT(0) | BIT(1)); |
| |
| _rtl_pci_platform_switch_device_pci_aspm(hw, linkctrl_reg); |
| udelay(50); |
| |
| /*4 Disable Pci Bridge ASPM */ |
| pci_write_config_byte(rtlpci->pdev, (num4bytes << 2), |
| pcibridge_linkctrlreg); |
| |
| udelay(50); |
| } |
| |
| /* |
| *Enable RTL8192SE ASPM & Enable Pci Bridge ASPM for |
| *power saving We should follow the sequence to enable |
| *RTL8192SE first then enable Pci Bridge ASPM |
| *or the system will show bluescreen. |
| */ |
| static void rtl_pci_enable_aspm(struct ieee80211_hw *hw) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); |
| struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| u8 pcibridge_busnum = pcipriv->ndis_adapter.pcibridge_busnum; |
| u8 pcibridge_devnum = pcipriv->ndis_adapter.pcibridge_devnum; |
| u8 pcibridge_funcnum = pcipriv->ndis_adapter.pcibridge_funcnum; |
| u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor; |
| u8 num4bytes = pcipriv->ndis_adapter.num4bytes; |
| u16 aspmlevel; |
| u8 u_pcibridge_aspmsetting; |
| u8 u_device_aspmsetting; |
| |
| if (!ppsc->support_aspm) |
| return; |
| |
| if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) { |
| RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE, |
| "PCI(Bridge) UNKNOWN\n"); |
| return; |
| } |
| |
| /*4 Enable Pci Bridge ASPM */ |
| |
| u_pcibridge_aspmsetting = |
| pcipriv->ndis_adapter.pcibridge_linkctrlreg | |
| rtlpci->const_hostpci_aspm_setting; |
| |
| if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL) |
| u_pcibridge_aspmsetting &= ~BIT(0); |
| |
| pci_write_config_byte(rtlpci->pdev, (num4bytes << 2), |
| u_pcibridge_aspmsetting); |
| |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, |
| "PlatformEnableASPM():PciBridge busnumber[%x], DevNumbe[%x], funcnumber[%x], Write reg[%x] = %x\n", |
| pcibridge_busnum, pcibridge_devnum, pcibridge_funcnum, |
| (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10), |
| u_pcibridge_aspmsetting); |
| |
| udelay(50); |
| |
| /*Get ASPM level (with/without Clock Req) */ |
| aspmlevel = rtlpci->const_devicepci_aspm_setting; |
| u_device_aspmsetting = pcipriv->ndis_adapter.linkctrl_reg; |
| |
| /*_rtl_pci_platform_switch_device_pci_aspm(dev,*/ |
| /*(priv->ndis_adapter.linkctrl_reg | ASPMLevel)); */ |
| |
| u_device_aspmsetting |= aspmlevel; |
| |
| _rtl_pci_platform_switch_device_pci_aspm(hw, u_device_aspmsetting); |
| |
| if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) { |
| _rtl_pci_switch_clk_req(hw, (ppsc->reg_rfps_level & |
| RT_RF_OFF_LEVL_CLK_REQ) ? 1 : 0); |
| RT_SET_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ); |
| } |
| udelay(100); |
| } |
| |
| static bool rtl_pci_get_amd_l1_patch(struct ieee80211_hw *hw) |
| { |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| |
| bool status = false; |
| u8 offset_e0; |
| unsigned offset_e4; |
| |
| pci_write_config_byte(rtlpci->pdev, 0xe0, 0xa0); |
| |
| pci_read_config_byte(rtlpci->pdev, 0xe0, &offset_e0); |
| |
| if (offset_e0 == 0xA0) { |
| pci_read_config_dword(rtlpci->pdev, 0xe4, &offset_e4); |
| if (offset_e4 & BIT(23)) |
| status = true; |
| } |
| |
| return status; |
| } |
| |
| static void rtl_pci_get_linkcontrol_field(struct ieee80211_hw *hw) |
| { |
| struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); |
| struct rtl_pci *rtlpci = rtl_pcidev(pcipriv); |
| u8 capabilityoffset = pcipriv->ndis_adapter.pcibridge_pciehdr_offset; |
| u8 linkctrl_reg; |
| u8 num4bbytes; |
| |
| num4bbytes = (capabilityoffset + 0x10) / 4; |
| |
| /*Read Link Control Register */ |
| pci_read_config_byte(rtlpci->pdev, (num4bbytes << 2), &linkctrl_reg); |
| |
| pcipriv->ndis_adapter.pcibridge_linkctrlreg = linkctrl_reg; |
| } |
| |
| static void rtl_pci_parse_configuration(struct pci_dev *pdev, |
| struct ieee80211_hw *hw) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); |
| |
| u8 tmp; |
| int pos; |
| u8 linkctrl_reg; |
| |
| /*Link Control Register */ |
| pos = pci_pcie_cap(pdev); |
| pci_read_config_byte(pdev, pos + PCI_EXP_LNKCTL, &linkctrl_reg); |
| pcipriv->ndis_adapter.linkctrl_reg = linkctrl_reg; |
| |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, "Link Control Register =%x\n", |
| pcipriv->ndis_adapter.linkctrl_reg); |
| |
| pci_read_config_byte(pdev, 0x98, &tmp); |
| tmp |= BIT(4); |
| pci_write_config_byte(pdev, 0x98, tmp); |
| |
| tmp = 0x17; |
| pci_write_config_byte(pdev, 0x70f, tmp); |
| } |
| |
| static void rtl_pci_init_aspm(struct ieee80211_hw *hw) |
| { |
| struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); |
| |
| _rtl_pci_update_default_setting(hw); |
| |
| if (ppsc->reg_rfps_level & RT_RF_PS_LEVEL_ALWAYS_ASPM) { |
| /*Always enable ASPM & Clock Req. */ |
| rtl_pci_enable_aspm(hw); |
| RT_SET_PS_LEVEL(ppsc, RT_RF_PS_LEVEL_ALWAYS_ASPM); |
| } |
| |
| } |
| |
| static void _rtl_pci_io_handler_init(struct device *dev, |
| struct ieee80211_hw *hw) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| |
| rtlpriv->io.dev = dev; |
| |
| rtlpriv->io.write8_async = pci_write8_async; |
| rtlpriv->io.write16_async = pci_write16_async; |
| rtlpriv->io.write32_async = pci_write32_async; |
| |
| rtlpriv->io.read8_sync = pci_read8_sync; |
| rtlpriv->io.read16_sync = pci_read16_sync; |
| rtlpriv->io.read32_sync = pci_read32_sync; |
| |
| } |
| |
| static void _rtl_pci_io_handler_release(struct ieee80211_hw *hw) |
| { |
| } |
| |
| static bool _rtl_update_earlymode_info(struct ieee80211_hw *hw, |
| struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc, u8 tid) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| u8 additionlen = FCS_LEN; |
| struct sk_buff *next_skb; |
| |
| /* here open is 4, wep/tkip is 8, aes is 12*/ |
| if (info->control.hw_key) |
| additionlen += info->control.hw_key->icv_len; |
| |
| /* The most skb num is 6 */ |
| tcb_desc->empkt_num = 0; |
| spin_lock_bh(&rtlpriv->locks.waitq_lock); |
| skb_queue_walk(&rtlpriv->mac80211.skb_waitq[tid], next_skb) { |
| struct ieee80211_tx_info *next_info; |
| |
| next_info = IEEE80211_SKB_CB(next_skb); |
| if (next_info->flags & IEEE80211_TX_CTL_AMPDU) { |
| tcb_desc->empkt_len[tcb_desc->empkt_num] = |
| next_skb->len + additionlen; |
| tcb_desc->empkt_num++; |
| } else { |
| break; |
| } |
| |
| if (skb_queue_is_last(&rtlpriv->mac80211.skb_waitq[tid], |
| next_skb)) |
| break; |
| |
| if (tcb_desc->empkt_num >= 5) |
| break; |
| } |
| spin_unlock_bh(&rtlpriv->locks.waitq_lock); |
| |
| return true; |
| } |
| |
| /* just for early mode now */ |
| static void _rtl_pci_tx_chk_waitq(struct ieee80211_hw *hw) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| struct sk_buff *skb = NULL; |
| struct ieee80211_tx_info *info = NULL; |
| int tid; |
| |
| if (!rtlpriv->rtlhal.earlymode_enable) |
| return; |
| |
| /* we juse use em for BE/BK/VI/VO */ |
| for (tid = 7; tid >= 0; tid--) { |
| u8 hw_queue = ac_to_hwq[rtl_tid_to_ac(hw, tid)]; |
| struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue]; |
| while (!mac->act_scanning && |
| rtlpriv->psc.rfpwr_state == ERFON) { |
| struct rtl_tcb_desc tcb_desc; |
| memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); |
| |
| spin_lock_bh(&rtlpriv->locks.waitq_lock); |
| if (!skb_queue_empty(&mac->skb_waitq[tid]) && |
| (ring->entries - skb_queue_len(&ring->queue) > 5)) { |
| skb = skb_dequeue(&mac->skb_waitq[tid]); |
| } else { |
| spin_unlock_bh(&rtlpriv->locks.waitq_lock); |
| break; |
| } |
| spin_unlock_bh(&rtlpriv->locks.waitq_lock); |
| |
| /* Some macaddr can't do early mode. like |
| * multicast/broadcast/no_qos data */ |
| info = IEEE80211_SKB_CB(skb); |
| if (info->flags & IEEE80211_TX_CTL_AMPDU) |
| _rtl_update_earlymode_info(hw, skb, |
| &tcb_desc, tid); |
| |
| rtlpriv->intf_ops->adapter_tx(hw, skb, &tcb_desc); |
| } |
| } |
| } |
| |
| |
| 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; |
| __le16 fc; |
| u8 tid; |
| |
| 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); |
| |
| /* remove early mode header */ |
| if (rtlpriv->rtlhal.earlymode_enable) |
| skb_pull(skb, EM_HDR_LEN); |
| |
| 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)); |
| |
| if (prio == TXCMD_QUEUE) { |
| dev_kfree_skb(skb); |
| goto tx_status_ok; |
| |
| } |
| |
| /* for sw LPS, just after NULL skb send out, we can |
| * sure AP kown we are sleeped, our we should not let |
| * rf to sleep*/ |
| fc = rtl_get_fc(skb); |
| if (ieee80211_is_nullfunc(fc)) { |
| if (ieee80211_has_pm(fc)) { |
| rtlpriv->mac80211.offchan_delay = true; |
| rtlpriv->psc.state_inap = true; |
| } else { |
| rtlpriv->psc.state_inap = false; |
| } |
| } |
| |
| /* update tid tx pkt num */ |
| tid = rtl_get_tid(skb); |
| if (tid <= 7) |
| rtlpriv->link_info.tidtx_inperiod[tid]++; |
| |
| 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)); |
| } |
| tx_status_ok: |
| skb = NULL; |
| } |
| |
| if (((rtlpriv->link_info.num_rx_inperiod + |
| rtlpriv->link_info.num_tx_inperiod) > 8) || |
| (rtlpriv->link_info.num_rx_inperiod > 2)) { |
| schedule_work(&rtlpriv->works.lps_leave_work); |
| } |
| } |
| |
| static void _rtl_receive_one(struct ieee80211_hw *hw, struct sk_buff *skb, |
| struct ieee80211_rx_status rx_status) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct ieee80211_hdr *hdr = rtl_get_hdr(skb); |
| __le16 fc = rtl_get_fc(skb); |
| bool unicast = false; |
| struct sk_buff *uskb = NULL; |
| u8 *pdata; |
| |
| |
| 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++; |
| } |
| |
| /* for sw lps */ |
| rtl_swlps_beacon(hw, (void *)skb->data, skb->len); |
| rtl_recognize_peer(hw, (void *)skb->data, skb->len); |
| if ((rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP) && |
| (rtlpriv->rtlhal.current_bandtype == BAND_ON_2_4G) && |
| (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc))) |
| return; |
| |
| if (unlikely(!rtl_action_proc(hw, skb, false))) |
| return; |
| |
| uskb = dev_alloc_skb(skb->len + 128); |
| if (!uskb) |
| return; /* exit if allocation failed */ |
| memcpy(IEEE80211_SKB_RXCB(uskb), &rx_status, sizeof(rx_status)); |
| pdata = (u8 *)skb_put(uskb, skb->len); |
| memcpy(pdata, skb->data, skb->len); |
| |
| ieee80211_rx_irqsafe(hw, uskb); |
| } |
| |
| 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; |
| |
| struct rtl_stats stats = { |
| .signal = 0, |
| .noise = -98, |
| .rate = 0, |
| }; |
| int index = rtlpci->rx_ring[rx_queue_idx].idx; |
| |
| /*RX NORMAL PKT */ |
| while (count--) { |
| /*rx descriptor */ |
| struct rtl_rx_desc *pdesc = &rtlpci->rx_ring[rx_queue_idx].desc[ |
| index]; |
| /*rx pkt */ |
| struct sk_buff *skb = rtlpci->rx_ring[rx_queue_idx].rx_buf[ |
| index]; |
| struct sk_buff *new_skb = NULL; |
| |
| own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc, |
| false, HW_DESC_OWN); |
| |
| /*wait data to be filled by hardware */ |
| if (own) |
| break; |
| |
| rtlpriv->cfg->ops->query_rx_desc(hw, &stats, |
| &rx_status, |
| (u8 *) pdesc, skb); |
| |
| if (stats.crc || stats.hwerror) |
| goto done; |
| |
| new_skb = dev_alloc_skb(rtlpci->rxbuffersize); |
| if (unlikely(!new_skb)) { |
| RT_TRACE(rtlpriv, (COMP_INTR | COMP_RECV), DBG_DMESG, |
| "can't alloc skb for rx\n"); |
| goto done; |
| } |
| |
| 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); |
| */ |
| |
| _rtl_receive_one(hw, skb, rx_status); |
| |
| if (((rtlpriv->link_info.num_rx_inperiod + |
| rtlpriv->link_info.num_tx_inperiod) > 8) || |
| (rtlpriv->link_info.num_rx_inperiod > 2)) { |
| schedule_work(&rtlpriv->works.lps_leave_work); |
| } |
| |
| dev_kfree_skb_any(skb); |
| skb = new_skb; |
| |
| rtlpci->rx_ring[rx_queue_idx].rx_buf[index] = skb; |
| *((dma_addr_t *) skb->cb) = |
| pci_map_single(rtlpci->pdev, skb_tail_pointer(skb), |
| rtlpci->rxbuffersize, |
| PCI_DMA_FROMDEVICE); |
| |
| done: |
| bufferaddress = (*((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_RXPKT_LEN, |
| (u8 *)&rtlpci->rxbuffersize); |
| |
| if (index == rtlpci->rxringcount - 1) |
| rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, |
| HW_DESC_RXERO, |
| (u8 *)&tmp_one); |
| |
| rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXOWN, |
| (u8 *)&tmp_one); |
| |
| index = (index + 1) % rtlpci->rxringcount; |
| } |
| |
| rtlpci->rx_ring[rx_queue_idx].idx = index; |
| } |
| |
| 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_hal *rtlhal = rtl_hal(rtl_priv(hw)); |
| unsigned long flags; |
| u32 inta = 0; |
| u32 intb = 0; |
| irqreturn_t ret = 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) { |
| ret = IRQ_NONE; |
| 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); |
| } |
| |
| if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) { |
| if (inta & rtlpriv->cfg->maps[RTL_IMR_COMDOK]) { |
| rtlpriv->link_info.num_tx_inperiod++; |
| |
| RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, |
| "CMD TX OK interrupt!\n"); |
| _rtl_pci_tx_isr(hw, TXCMD_QUEUE); |
| } |
| } |
| |
| /*<2> Rx related */ |
| if (inta & rtlpriv->cfg->maps[RTL_IMR_ROK]) { |
| RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, "Rx ok interrupt!\n"); |
| _rtl_pci_rx_interrupt(hw); |
| } |
| |
| if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RDU])) { |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, |
| "rx descriptor unavailable!\n"); |
| _rtl_pci_rx_interrupt(hw); |
| } |
| |
| if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RXFOVW])) { |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, "rx overflow !\n"); |
| _rtl_pci_rx_interrupt(hw); |
| } |
| |
| if (rtlpriv->rtlhal.earlymode_enable) |
| tasklet_schedule(&rtlpriv->works.irq_tasklet); |
| |
| done: |
| spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); |
| return ret; |
| } |
| |
| static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw) |
| { |
| _rtl_pci_tx_chk_waitq(hw); |
| } |
| |
| static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); |
| struct rtl8192_tx_ring *ring = NULL; |
| struct ieee80211_hdr *hdr = NULL; |
| struct ieee80211_tx_info *info = NULL; |
| struct sk_buff *pskb = NULL; |
| struct rtl_tx_desc *pdesc = NULL; |
| struct rtl_tcb_desc tcb_desc; |
| u8 temp_one = 1; |
| |
| memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc)); |
| ring = &rtlpci->tx_ring[BEACON_QUEUE]; |
| pskb = __skb_dequeue(&ring->queue); |
| if (pskb) { |
| struct rtl_tx_desc *entry = &ring->desc[ring->idx]; |
| pci_unmap_single(rtlpci->pdev, rtlpriv->cfg->ops->get_desc( |
| (u8 *) entry, true, HW_DESC_TXBUFF_ADDR), |
| pskb->len, PCI_DMA_TODEVICE); |
| kfree_skb(pskb); |
| } |
| |
| /*NB: the beacon data buffer must be 32-bit aligned. */ |
| pskb = ieee80211_beacon_get(hw, mac->vif); |
| if (pskb == NULL) |
| return; |
| hdr = rtl_get_hdr(pskb); |
| info = IEEE80211_SKB_CB(pskb); |
| pdesc = &ring->desc[0]; |
| rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *) pdesc, |
| info, pskb, BEACON_QUEUE, &tcb_desc); |
| |
| __skb_queue_tail(&ring->queue, pskb); |
| |
| rtlpriv->cfg->ops->set_desc((u8 *) pdesc, true, HW_DESC_OWN, |
| (u8 *)&temp_one); |
| |
| return; |
| } |
| |
| static void rtl_lps_leave_work_callback(struct work_struct *work) |
| { |
| struct rtl_works *rtlworks = |
| container_of(work, struct rtl_works, lps_leave_work); |
| struct ieee80211_hw *hw = rtlworks->hw; |
| |
| rtl_lps_leave(hw); |
| } |
| |
| static void _rtl_pci_init_trx_var(struct ieee80211_hw *hw) |
| { |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| u8 i; |
| |
| for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) |
| rtlpci->txringcount[i] = RT_TXDESC_NUM; |
| |
| /* |
| *we just alloc 2 desc for beacon queue, |
| *because we just need first desc in hw beacon. |
| */ |
| rtlpci->txringcount[BEACON_QUEUE] = 2; |
| |
| /* |
| *BE queue need more descriptor for performance |
| *consideration or, No more tx desc will happen, |
| *and may cause mac80211 mem leakage. |
| */ |
| rtlpci->txringcount[BE_QUEUE] = RT_TXDESC_NUM_BE_QUEUE; |
| |
| rtlpci->rxbuffersize = 9100; /*2048/1024; */ |
| rtlpci->rxringcount = RTL_PCI_MAX_RX_COUNT; /*64; */ |
| } |
| |
| static void _rtl_pci_init_struct(struct ieee80211_hw *hw, |
| struct pci_dev *pdev) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); |
| |
| rtlpci->up_first_time = true; |
| rtlpci->being_init_adapter = false; |
| |
| rtlhal->hw = hw; |
| rtlpci->pdev = pdev; |
| |
| /*Tx/Rx related var */ |
| _rtl_pci_init_trx_var(hw); |
| |
| /*IBSS*/ mac->beacon_interval = 100; |
| |
| /*AMPDU*/ |
| mac->min_space_cfg = 0; |
| mac->max_mss_density = 0; |
| /*set sane AMPDU defaults */ |
| mac->current_ampdu_density = 7; |
| mac->current_ampdu_factor = 3; |
| |
| /*QOS*/ |
| rtlpci->acm_method = eAcmWay2_SW; |
| |
| /*task */ |
| tasklet_init(&rtlpriv->works.irq_tasklet, |
| (void (*)(unsigned long))_rtl_pci_irq_tasklet, |
| (unsigned long)hw); |
| tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet, |
| (void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet, |
| (unsigned long)hw); |
| INIT_WORK(&rtlpriv->works.lps_leave_work, rtl_lps_leave_work_callback); |
| } |
| |
| static int _rtl_pci_init_tx_ring(struct ieee80211_hw *hw, |
| unsigned int prio, unsigned int entries) |
| { |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_tx_desc *ring; |
| dma_addr_t dma; |
| u32 nextdescaddress; |
| int i; |
| |
| ring = pci_alloc_consistent(rtlpci->pdev, |
| sizeof(*ring) * entries, &dma); |
| |
| if (!ring || (unsigned long)ring & 0xFF) { |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, |
| "Cannot allocate TX ring (prio = %d)\n", prio); |
| return -ENOMEM; |
| } |
| |
| memset(ring, 0, sizeof(*ring) * entries); |
| rtlpci->tx_ring[prio].desc = ring; |
| rtlpci->tx_ring[prio].dma = dma; |
| rtlpci->tx_ring[prio].idx = 0; |
| rtlpci->tx_ring[prio].entries = entries; |
| skb_queue_head_init(&rtlpci->tx_ring[prio].queue); |
| |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, "queue:%d, ring_addr:%p\n", |
| prio, ring); |
| |
| for (i = 0; i < entries; i++) { |
| nextdescaddress = (u32) dma + |
| ((i + 1) % entries) * |
| sizeof(*ring); |
| |
| rtlpriv->cfg->ops->set_desc((u8 *)&(ring[i]), |
| true, HW_DESC_TX_NEXTDESC_ADDR, |
| (u8 *)&nextdescaddress); |
| } |
| |
| return 0; |
| } |
| |
| static int _rtl_pci_init_rx_ring(struct ieee80211_hw *hw) |
| { |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_rx_desc *entry = NULL; |
| int i, rx_queue_idx; |
| u8 tmp_one = 1; |
| |
| /* |
| *rx_queue_idx 0:RX_MPDU_QUEUE |
| *rx_queue_idx 1:RX_CMD_QUEUE |
| */ |
| for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE; |
| rx_queue_idx++) { |
| rtlpci->rx_ring[rx_queue_idx].desc = |
| pci_alloc_consistent(rtlpci->pdev, |
| sizeof(*rtlpci->rx_ring[rx_queue_idx]. |
| desc) * rtlpci->rxringcount, |
| &rtlpci->rx_ring[rx_queue_idx].dma); |
| |
| if (!rtlpci->rx_ring[rx_queue_idx].desc || |
| (unsigned long)rtlpci->rx_ring[rx_queue_idx].desc & 0xFF) { |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, |
| "Cannot allocate RX ring\n"); |
| return -ENOMEM; |
| } |
| |
| memset(rtlpci->rx_ring[rx_queue_idx].desc, 0, |
| sizeof(*rtlpci->rx_ring[rx_queue_idx].desc) * |
| rtlpci->rxringcount); |
| |
| rtlpci->rx_ring[rx_queue_idx].idx = 0; |
| |
| /* If amsdu_8k is disabled, set buffersize to 4096. This |
| * change will reduce memory fragmentation. |
| */ |
| if (rtlpci->rxbuffersize > 4096 && |
| rtlpriv->rtlhal.disable_amsdu_8k) |
| rtlpci->rxbuffersize = 4096; |
| |
| for (i = 0; i < rtlpci->rxringcount; i++) { |
| struct sk_buff *skb = |
| dev_alloc_skb(rtlpci->rxbuffersize); |
| u32 bufferaddress; |
| if (!skb) |
| return 0; |
| entry = &rtlpci->rx_ring[rx_queue_idx].desc[i]; |
| |
| /*skb->dev = dev; */ |
| |
| rtlpci->rx_ring[rx_queue_idx].rx_buf[i] = skb; |
| |
| /* |
| *just set skb->cb to mapping addr |
| *for pci_unmap_single use |
| */ |
| *((dma_addr_t *) skb->cb) = |
| pci_map_single(rtlpci->pdev, skb_tail_pointer(skb), |
| rtlpci->rxbuffersize, |
| PCI_DMA_FROMDEVICE); |
| |
| bufferaddress = (*((dma_addr_t *)skb->cb)); |
| rtlpriv->cfg->ops->set_desc((u8 *)entry, false, |
| HW_DESC_RXBUFF_ADDR, |
| (u8 *)&bufferaddress); |
| rtlpriv->cfg->ops->set_desc((u8 *)entry, false, |
| HW_DESC_RXPKT_LEN, |
| (u8 *)&rtlpci-> |
| rxbuffersize); |
| rtlpriv->cfg->ops->set_desc((u8 *) entry, false, |
| HW_DESC_RXOWN, |
| (u8 *)&tmp_one); |
| } |
| |
| rtlpriv->cfg->ops->set_desc((u8 *) entry, false, |
| HW_DESC_RXERO, (u8 *)&tmp_one); |
| } |
| return 0; |
| } |
| |
| static void _rtl_pci_free_tx_ring(struct ieee80211_hw *hw, |
| unsigned 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 = __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); |
| kfree_skb(skb); |
| ring->idx = (ring->idx + 1) % ring->entries; |
| } |
| |
| if (ring->desc) { |
| pci_free_consistent(rtlpci->pdev, |
| sizeof(*ring->desc) * ring->entries, |
| ring->desc, ring->dma); |
| ring->desc = NULL; |
| } |
| } |
| |
| static void _rtl_pci_free_rx_ring(struct rtl_pci *rtlpci) |
| { |
| int i, rx_queue_idx; |
| |
| /*rx_queue_idx 0:RX_MPDU_QUEUE */ |
| /*rx_queue_idx 1:RX_CMD_QUEUE */ |
| for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE; |
| rx_queue_idx++) { |
| for (i = 0; i < rtlpci->rxringcount; i++) { |
| struct sk_buff *skb = |
| rtlpci->rx_ring[rx_queue_idx].rx_buf[i]; |
| if (!skb) |
| continue; |
| |
| pci_unmap_single(rtlpci->pdev, |
| *((dma_addr_t *) skb->cb), |
| rtlpci->rxbuffersize, |
| PCI_DMA_FROMDEVICE); |
| kfree_skb(skb); |
| } |
| |
| if (rtlpci->rx_ring[rx_queue_idx].desc) { |
| pci_free_consistent(rtlpci->pdev, |
| sizeof(*rtlpci->rx_ring[rx_queue_idx]. |
| desc) * rtlpci->rxringcount, |
| rtlpci->rx_ring[rx_queue_idx].desc, |
| rtlpci->rx_ring[rx_queue_idx].dma); |
| rtlpci->rx_ring[rx_queue_idx].desc = NULL; |
| } |
| } |
| } |
| |
| static int _rtl_pci_init_trx_ring(struct ieee80211_hw *hw) |
| { |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| int ret; |
| int i; |
| |
| ret = _rtl_pci_init_rx_ring(hw); |
| if (ret) |
| return ret; |
| |
| for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) { |
| ret = _rtl_pci_init_tx_ring(hw, i, |
| rtlpci->txringcount[i]); |
| if (ret) |
| goto err_free_rings; |
| } |
| |
| return 0; |
| |
| err_free_rings: |
| _rtl_pci_free_rx_ring(rtlpci); |
| |
| for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) |
| if (rtlpci->tx_ring[i].desc) |
| _rtl_pci_free_tx_ring(hw, i); |
| |
| return 1; |
| } |
| |
| static int _rtl_pci_deinit_trx_ring(struct ieee80211_hw *hw) |
| { |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| u32 i; |
| |
| /*free rx rings */ |
| _rtl_pci_free_rx_ring(rtlpci); |
| |
| /*free tx rings */ |
| for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) |
| _rtl_pci_free_tx_ring(hw, i); |
| |
| return 0; |
| } |
| |
| int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| int i, rx_queue_idx; |
| unsigned long flags; |
| u8 tmp_one = 1; |
| |
| /*rx_queue_idx 0:RX_MPDU_QUEUE */ |
| /*rx_queue_idx 1:RX_CMD_QUEUE */ |
| for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE; |
| rx_queue_idx++) { |
| /* |
| *force the rx_ring[RX_MPDU_QUEUE/ |
| *RX_CMD_QUEUE].idx to the first one |
| */ |
| if (rtlpci->rx_ring[rx_queue_idx].desc) { |
| struct rtl_rx_desc *entry = NULL; |
| |
| for (i = 0; i < rtlpci->rxringcount; i++) { |
| entry = &rtlpci->rx_ring[rx_queue_idx].desc[i]; |
| rtlpriv->cfg->ops->set_desc((u8 *) entry, |
| false, |
| HW_DESC_RXOWN, |
| (u8 *)&tmp_one); |
| } |
| rtlpci->rx_ring[rx_queue_idx].idx = 0; |
| } |
| } |
| |
| /* |
| *after reset, release previous pending packet, |
| *and force the tx idx to the first one |
| */ |
| spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags); |
| for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) { |
| if (rtlpci->tx_ring[i].desc) { |
| struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[i]; |
| |
| while (skb_queue_len(&ring->queue)) { |
| struct rtl_tx_desc *entry = |
| &ring->desc[ring->idx]; |
| struct sk_buff *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); |
| kfree_skb(skb); |
| ring->idx = (ring->idx + 1) % ring->entries; |
| } |
| ring->idx = 0; |
| } |
| } |
| |
| spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); |
| |
| return 0; |
| } |
| |
| static bool rtl_pci_tx_chk_waitq_insert(struct ieee80211_hw *hw, |
| struct sk_buff *skb) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| struct ieee80211_sta *sta = info->control.sta; |
| struct rtl_sta_info *sta_entry = NULL; |
| u8 tid = rtl_get_tid(skb); |
| |
| if (!sta) |
| return false; |
| sta_entry = (struct rtl_sta_info *)sta->drv_priv; |
| |
| if (!rtlpriv->rtlhal.earlymode_enable) |
| return false; |
| if (sta_entry->tids[tid].agg.agg_state != RTL_AGG_OPERATIONAL) |
| return false; |
| if (_rtl_mac_to_hwqueue(hw, skb) > VO_QUEUE) |
| return false; |
| if (tid > 7) |
| return false; |
| |
| /* maybe every tid should be checked */ |
| if (!rtlpriv->link_info.higher_busytxtraffic[tid]) |
| return false; |
| |
| spin_lock_bh(&rtlpriv->locks.waitq_lock); |
| skb_queue_tail(&rtlpriv->mac80211.skb_waitq[tid], skb); |
| spin_unlock_bh(&rtlpriv->locks.waitq_lock); |
| |
| return true; |
| } |
| |
| static int rtl_pci_tx(struct ieee80211_hw *hw, struct sk_buff *skb, |
| struct rtl_tcb_desc *ptcb_desc) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_sta_info *sta_entry = NULL; |
| struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| struct ieee80211_sta *sta = info->control.sta; |
| struct rtl8192_tx_ring *ring; |
| struct rtl_tx_desc *pdesc; |
| u8 idx; |
| u8 hw_queue = _rtl_mac_to_hwqueue(hw, skb); |
| unsigned long flags; |
| struct ieee80211_hdr *hdr = rtl_get_hdr(skb); |
| __le16 fc = rtl_get_fc(skb); |
| u8 *pda_addr = hdr->addr1; |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| /*ssn */ |
| u8 tid = 0; |
| u16 seq_number = 0; |
| u8 own; |
| u8 temp_one = 1; |
| |
| if (ieee80211_is_auth(fc)) { |
| RT_TRACE(rtlpriv, COMP_SEND, DBG_DMESG, "MAC80211_LINKING\n"); |
| rtl_ips_nic_on(hw); |
| } |
| |
| if (rtlpriv->psc.sw_ps_enabled) { |
| if (ieee80211_is_data(fc) && !ieee80211_is_nullfunc(fc) && |
| !ieee80211_has_pm(fc)) |
| hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); |
| } |
| |
| rtl_action_proc(hw, skb, true); |
| |
| if (is_multicast_ether_addr(pda_addr)) |
| rtlpriv->stats.txbytesmulticast += skb->len; |
| else if (is_broadcast_ether_addr(pda_addr)) |
| rtlpriv->stats.txbytesbroadcast += skb->len; |
| else |
| rtlpriv->stats.txbytesunicast += skb->len; |
| |
| spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags); |
| ring = &rtlpci->tx_ring[hw_queue]; |
| if (hw_queue != BEACON_QUEUE) |
| idx = (ring->idx + skb_queue_len(&ring->queue)) % |
| ring->entries; |
| else |
| idx = 0; |
| |
| pdesc = &ring->desc[idx]; |
| own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc, |
| true, HW_DESC_OWN); |
| |
| if ((own == 1) && (hw_queue != BEACON_QUEUE)) { |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, |
| "No more TX desc@%d, ring->idx = %d, idx = %d, skb_queue_len = 0x%d\n", |
| hw_queue, ring->idx, idx, |
| skb_queue_len(&ring->queue)); |
| |
| spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); |
| return skb->len; |
| } |
| |
| if (ieee80211_is_data_qos(fc)) { |
| tid = rtl_get_tid(skb); |
| if (sta) { |
| sta_entry = (struct rtl_sta_info *)sta->drv_priv; |
| seq_number = (le16_to_cpu(hdr->seq_ctrl) & |
| IEEE80211_SCTL_SEQ) >> 4; |
| seq_number += 1; |
| |
| if (!ieee80211_has_morefrags(hdr->frame_control)) |
| sta_entry->tids[tid].seq_number = seq_number; |
| } |
| } |
| |
| if (ieee80211_is_data(fc)) |
| rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX); |
| |
| rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *)pdesc, |
| info, skb, hw_queue, ptcb_desc); |
| |
| __skb_queue_tail(&ring->queue, skb); |
| |
| rtlpriv->cfg->ops->set_desc((u8 *)pdesc, true, |
| HW_DESC_OWN, (u8 *)&temp_one); |
| |
| |
| if ((ring->entries - skb_queue_len(&ring->queue)) < 2 && |
| hw_queue != BEACON_QUEUE) { |
| |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD, |
| "less desc left, stop skb_queue@%d, ring->idx = %d, idx = %d, skb_queue_len = 0x%d\n", |
| hw_queue, ring->idx, idx, |
| skb_queue_len(&ring->queue)); |
| |
| ieee80211_stop_queue(hw, skb_get_queue_mapping(skb)); |
| } |
| |
| spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); |
| |
| rtlpriv->cfg->ops->tx_polling(hw, hw_queue); |
| |
| return 0; |
| } |
| |
| static void rtl_pci_flush(struct ieee80211_hw *hw, bool drop) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); |
| struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); |
| u16 i = 0; |
| int queue_id; |
| struct rtl8192_tx_ring *ring; |
| |
| for (queue_id = RTL_PCI_MAX_TX_QUEUE_COUNT - 1; queue_id >= 0;) { |
| u32 queue_len; |
| ring = &pcipriv->dev.tx_ring[queue_id]; |
| queue_len = skb_queue_len(&ring->queue); |
| if (queue_len == 0 || queue_id == BEACON_QUEUE || |
| queue_id == TXCMD_QUEUE) { |
| queue_id--; |
| continue; |
| } else { |
| msleep(20); |
| i++; |
| } |
| |
| /* we just wait 1s for all queues */ |
| if (rtlpriv->psc.rfpwr_state == ERFOFF || |
| is_hal_stop(rtlhal) || i >= 200) |
| return; |
| } |
| } |
| |
| static void rtl_pci_deinit(struct ieee80211_hw *hw) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| |
| _rtl_pci_deinit_trx_ring(hw); |
| |
| synchronize_irq(rtlpci->pdev->irq); |
| tasklet_kill(&rtlpriv->works.irq_tasklet); |
| cancel_work_sync(&rtlpriv->works.lps_leave_work); |
| |
| flush_workqueue(rtlpriv->works.rtl_wq); |
| destroy_workqueue(rtlpriv->works.rtl_wq); |
| |
| } |
| |
| static int rtl_pci_init(struct ieee80211_hw *hw, struct pci_dev *pdev) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| int err; |
| |
| _rtl_pci_init_struct(hw, pdev); |
| |
| err = _rtl_pci_init_trx_ring(hw); |
| if (err) { |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, |
| "tx ring initialization failed\n"); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int rtl_pci_start(struct ieee80211_hw *hw) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); |
| |
| int err; |
| |
| rtl_pci_reset_trx_ring(hw); |
| |
| rtlpci->driver_is_goingto_unload = false; |
| err = rtlpriv->cfg->ops->hw_init(hw); |
| if (err) { |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, |
| "Failed to config hardware!\n"); |
| return err; |
| } |
| |
| rtlpriv->cfg->ops->enable_interrupt(hw); |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, "enable_interrupt OK\n"); |
| |
| rtl_init_rx_config(hw); |
| |
| /*should be after adapter start and interrupt enable. */ |
| set_hal_start(rtlhal); |
| |
| RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC); |
| |
| rtlpci->up_first_time = false; |
| |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "OK\n"); |
| return 0; |
| } |
| |
| static void rtl_pci_stop(struct ieee80211_hw *hw) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); |
| struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); |
| struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); |
| unsigned long flags; |
| u8 RFInProgressTimeOut = 0; |
| |
| /* |
| *should be before disable interrupt&adapter |
| *and will do it immediately. |
| */ |
| set_hal_stop(rtlhal); |
| |
| rtlpriv->cfg->ops->disable_interrupt(hw); |
| cancel_work_sync(&rtlpriv->works.lps_leave_work); |
| |
| spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); |
| while (ppsc->rfchange_inprogress) { |
| spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags); |
| if (RFInProgressTimeOut > 100) { |
| spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); |
| break; |
| } |
| mdelay(1); |
| RFInProgressTimeOut++; |
| spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); |
| } |
| ppsc->rfchange_inprogress = true; |
| spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags); |
| |
| rtlpci->driver_is_goingto_unload = true; |
| rtlpriv->cfg->ops->hw_disable(hw); |
| /* some things are not needed if firmware not available */ |
| if (!rtlpriv->max_fw_size) |
| return; |
| rtlpriv->cfg->ops->led_control(hw, LED_CTL_POWER_OFF); |
| |
| spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); |
| ppsc->rfchange_inprogress = false; |
| spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags); |
| |
| rtl_pci_enable_aspm(hw); |
| } |
| |
| static bool _rtl_pci_find_adapter(struct pci_dev *pdev, |
| struct ieee80211_hw *hw) |
| { |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); |
| struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); |
| struct pci_dev *bridge_pdev = pdev->bus->self; |
| u16 venderid; |
| u16 deviceid; |
| u8 revisionid; |
| u16 irqline; |
| u8 tmp; |
| |
| pcipriv->ndis_adapter.pcibridge_vendor = PCI_BRIDGE_VENDOR_UNKNOWN; |
| venderid = pdev->vendor; |
| deviceid = pdev->device; |
| pci_read_config_byte(pdev, 0x8, &revisionid); |
| pci_read_config_word(pdev, 0x3C, &irqline); |
| |
| /* PCI ID 0x10ec:0x8192 occurs for both RTL8192E, which uses |
| * r8192e_pci, and RTL8192SE, which uses this driver. If the |
| * revision ID is RTL_PCI_REVISION_ID_8192PCIE (0x01), then |
| * the correct driver is r8192e_pci, thus this routine should |
| * return false. |
| */ |
| if (deviceid == RTL_PCI_8192SE_DID && |
| revisionid == RTL_PCI_REVISION_ID_8192PCIE) |
| return false; |
| |
| if (deviceid == RTL_PCI_8192_DID || |
| deviceid == RTL_PCI_0044_DID || |
| deviceid == RTL_PCI_0047_DID || |
| deviceid == RTL_PCI_8192SE_DID || |
| deviceid == RTL_PCI_8174_DID || |
| deviceid == RTL_PCI_8173_DID || |
| deviceid == RTL_PCI_8172_DID || |
| deviceid == RTL_PCI_8171_DID) { |
| switch (revisionid) { |
| case RTL_PCI_REVISION_ID_8192PCIE: |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, |
| "8192 PCI-E is found - vid/did=%x/%x\n", |
| venderid, deviceid); |
| rtlhal->hw_type = HARDWARE_TYPE_RTL8192E; |
| break; |
| case RTL_PCI_REVISION_ID_8192SE: |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, |
| "8192SE is found - vid/did=%x/%x\n", |
| venderid, deviceid); |
| rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE; |
| break; |
| default: |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, |
| "Err: Unknown device - vid/did=%x/%x\n", |
| venderid, deviceid); |
| rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE; |
| break; |
| |
| } |
| } else if (deviceid == RTL_PCI_8192CET_DID || |
| deviceid == RTL_PCI_8192CE_DID || |
| deviceid == RTL_PCI_8191CE_DID || |
| deviceid == RTL_PCI_8188CE_DID) { |
| rtlhal->hw_type = HARDWARE_TYPE_RTL8192CE; |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, |
| "8192C PCI-E is found - vid/did=%x/%x\n", |
| venderid, deviceid); |
| } else if (deviceid == RTL_PCI_8192DE_DID || |
| deviceid == RTL_PCI_8192DE_DID2) { |
| rtlhal->hw_type = HARDWARE_TYPE_RTL8192DE; |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, |
| "8192D PCI-E is found - vid/did=%x/%x\n", |
| venderid, deviceid); |
| } else { |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, |
| "Err: Unknown device - vid/did=%x/%x\n", |
| venderid, deviceid); |
| |
| rtlhal->hw_type = RTL_DEFAULT_HARDWARE_TYPE; |
| } |
| |
| if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192DE) { |
| if (revisionid == 0 || revisionid == 1) { |
| if (revisionid == 0) { |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, |
| "Find 92DE MAC0\n"); |
| rtlhal->interfaceindex = 0; |
| } else if (revisionid == 1) { |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, |
| "Find 92DE MAC1\n"); |
| rtlhal->interfaceindex = 1; |
| } |
| } else { |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, |
| "Unknown device - VendorID/DeviceID=%x/%x, Revision=%x\n", |
| venderid, deviceid, revisionid); |
| rtlhal->interfaceindex = 0; |
| } |
| } |
| /*find bus info */ |
| pcipriv->ndis_adapter.busnumber = pdev->bus->number; |
| pcipriv->ndis_adapter.devnumber = PCI_SLOT(pdev->devfn); |
| pcipriv->ndis_adapter.funcnumber = PCI_FUNC(pdev->devfn); |
| |
| if (bridge_pdev) { |
| /*find bridge info if available */ |
| pcipriv->ndis_adapter.pcibridge_vendorid = bridge_pdev->vendor; |
| for (tmp = 0; tmp < PCI_BRIDGE_VENDOR_MAX; tmp++) { |
| if (bridge_pdev->vendor == pcibridge_vendors[tmp]) { |
| pcipriv->ndis_adapter.pcibridge_vendor = tmp; |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, |
| "Pci Bridge Vendor is found index: %d\n", |
| tmp); |
| break; |
| } |
| } |
| } |
| |
| if (pcipriv->ndis_adapter.pcibridge_vendor != |
| PCI_BRIDGE_VENDOR_UNKNOWN) { |
| pcipriv->ndis_adapter.pcibridge_busnum = |
| bridge_pdev->bus->number; |
| pcipriv->ndis_adapter.pcibridge_devnum = |
| PCI_SLOT(bridge_pdev->devfn); |
| pcipriv->ndis_adapter.pcibridge_funcnum = |
| PCI_FUNC(bridge_pdev->devfn); |
| pcipriv->ndis_adapter.pcibridge_pciehdr_offset = |
| pci_pcie_cap(bridge_pdev); |
| pcipriv->ndis_adapter.num4bytes = |
| (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10) / 4; |
| |
| rtl_pci_get_linkcontrol_field(hw); |
| |
| if (pcipriv->ndis_adapter.pcibridge_vendor == |
| PCI_BRIDGE_VENDOR_AMD) { |
| pcipriv->ndis_adapter.amd_l1_patch = |
| rtl_pci_get_amd_l1_patch(hw); |
| } |
| } |
| |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, |
| "pcidev busnumber:devnumber:funcnumber:vendor:link_ctl %d:%d:%d:%x:%x\n", |
| pcipriv->ndis_adapter.busnumber, |
| pcipriv->ndis_adapter.devnumber, |
| pcipriv->ndis_adapter.funcnumber, |
| pdev->vendor, pcipriv->ndis_adapter.linkctrl_reg); |
| |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, |
| "pci_bridge busnumber:devnumber:funcnumber:vendor:pcie_cap:link_ctl_reg:amd %d:%d:%d:%x:%x:%x:%x\n", |
| pcipriv->ndis_adapter.pcibridge_busnum, |
| pcipriv->ndis_adapter.pcibridge_devnum, |
| pcipriv->ndis_adapter.pcibridge_funcnum, |
| pcibridge_vendors[pcipriv->ndis_adapter.pcibridge_vendor], |
| pcipriv->ndis_adapter.pcibridge_pciehdr_offset, |
| pcipriv->ndis_adapter.pcibridge_linkctrlreg, |
| pcipriv->ndis_adapter.amd_l1_patch); |
| |
| rtl_pci_parse_configuration(pdev, hw); |
| |
| return true; |
| } |
| |
| int __devinit rtl_pci_probe(struct pci_dev *pdev, |
| const struct pci_device_id *id) |
| { |
| struct ieee80211_hw *hw = NULL; |
| |
| struct rtl_priv *rtlpriv = NULL; |
| struct rtl_pci_priv *pcipriv = NULL; |
| struct rtl_pci *rtlpci; |
| unsigned long pmem_start, pmem_len, pmem_flags; |
| int err; |
| |
| err = pci_enable_device(pdev); |
| if (err) { |
| RT_ASSERT(false, "%s : Cannot enable new PCI device\n", |
| pci_name(pdev)); |
| return err; |
| } |
| |
| if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) { |
| if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) { |
| RT_ASSERT(false, |
| "Unable to obtain 32bit DMA for consistent allocations\n"); |
| err = -ENOMEM; |
| goto fail1; |
| } |
| } |
| |
| pci_set_master(pdev); |
| |
| hw = ieee80211_alloc_hw(sizeof(struct rtl_pci_priv) + |
| sizeof(struct rtl_priv), &rtl_ops); |
| if (!hw) { |
| RT_ASSERT(false, |
| "%s : ieee80211 alloc failed\n", pci_name(pdev)); |
| err = -ENOMEM; |
| goto fail1; |
| } |
| |
| SET_IEEE80211_DEV(hw, &pdev->dev); |
| pci_set_drvdata(pdev, hw); |
| |
| rtlpriv = hw->priv; |
| pcipriv = (void *)rtlpriv->priv; |
| pcipriv->dev.pdev = pdev; |
| init_completion(&rtlpriv->firmware_loading_complete); |
| |
| /* init cfg & intf_ops */ |
| rtlpriv->rtlhal.interface = INTF_PCI; |
| rtlpriv->cfg = (struct rtl_hal_cfg *)(id->driver_data); |
| rtlpriv->intf_ops = &rtl_pci_ops; |
| |
| /* |
| *init dbgp flags before all |
| *other functions, because we will |
| *use it in other funtions like |
| *RT_TRACE/RT_PRINT/RTL_PRINT_DATA |
| *you can not use these macro |
| *before this |
| */ |
| rtl_dbgp_flag_init(hw); |
| |
| /* MEM map */ |
| err = pci_request_regions(pdev, KBUILD_MODNAME); |
| if (err) { |
| RT_ASSERT(false, "Can't obtain PCI resources\n"); |
| goto fail1; |
| } |
| |
| pmem_start = pci_resource_start(pdev, rtlpriv->cfg->bar_id); |
| pmem_len = pci_resource_len(pdev, rtlpriv->cfg->bar_id); |
| pmem_flags = pci_resource_flags(pdev, rtlpriv->cfg->bar_id); |
| |
| /*shared mem start */ |
| rtlpriv->io.pci_mem_start = |
| (unsigned long)pci_iomap(pdev, |
| rtlpriv->cfg->bar_id, pmem_len); |
| if (rtlpriv->io.pci_mem_start == 0) { |
| RT_ASSERT(false, "Can't map PCI mem\n"); |
| err = -ENOMEM; |
| goto fail2; |
| } |
| |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, |
| "mem mapped space: start: 0x%08lx len:%08lx flags:%08lx, after map:0x%08lx\n", |
| pmem_start, pmem_len, pmem_flags, |
| rtlpriv->io.pci_mem_start); |
| |
| /* Disable Clk Request */ |
| pci_write_config_byte(pdev, 0x81, 0); |
| /* leave D3 mode */ |
| pci_write_config_byte(pdev, 0x44, 0); |
| pci_write_config_byte(pdev, 0x04, 0x06); |
| pci_write_config_byte(pdev, 0x04, 0x07); |
| |
| /* find adapter */ |
| if (!_rtl_pci_find_adapter(pdev, hw)) { |
| err = -ENODEV; |
| goto fail3; |
| } |
| |
| /* Init IO handler */ |
| _rtl_pci_io_handler_init(&pdev->dev, hw); |
| |
| /*like read eeprom and so on */ |
| rtlpriv->cfg->ops->read_eeprom_info(hw); |
| |
| if (rtlpriv->cfg->ops->init_sw_vars(hw)) { |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't init_sw_vars\n"); |
| err = -ENODEV; |
| goto fail3; |
| } |
| |
| rtlpriv->cfg->ops->init_sw_leds(hw); |
| |
| /*aspm */ |
| rtl_pci_init_aspm(hw); |
| |
| /* Init mac80211 sw */ |
| err = rtl_init_core(hw); |
| if (err) { |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, |
| "Can't allocate sw for mac80211\n"); |
| goto fail3; |
| } |
| |
| /* Init PCI sw */ |
| err = rtl_pci_init(hw, pdev); |
| if (err) { |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Failed to init PCI\n"); |
| goto fail3; |
| } |
| |
| err = sysfs_create_group(&pdev->dev.kobj, &rtl_attribute_group); |
| if (err) { |
| RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, |
| "failed to create sysfs device attributes\n"); |
| goto fail3; |
| } |
| |
| rtlpci = rtl_pcidev(pcipriv); |
| err = request_irq(rtlpci->pdev->irq, &_rtl_pci_interrupt, |
| IRQF_SHARED, KBUILD_MODNAME, hw); |
| if (err) { |
| RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, |
| "%s: failed to register IRQ handler\n", |
| wiphy_name(hw->wiphy)); |
| goto fail3; |
| } |
| rtlpci->irq_alloc = 1; |
| |
| return 0; |
| |
| fail3: |
| rtl_deinit_core(hw); |
| _rtl_pci_io_handler_release(hw); |
| |
| if (rtlpriv->io.pci_mem_start != 0) |
| pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start); |
| |
| fail2: |
| pci_release_regions(pdev); |
| complete(&rtlpriv->firmware_loading_complete); |
| |
| fail1: |
| if (hw) |
| ieee80211_free_hw(hw); |
| pci_set_drvdata(pdev, NULL); |
| pci_disable_device(pdev); |
| |
| return err; |
| |
| } |
| EXPORT_SYMBOL(rtl_pci_probe); |
| |
| void rtl_pci_disconnect(struct pci_dev *pdev) |
| { |
| struct ieee80211_hw *hw = pci_get_drvdata(pdev); |
| struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| struct rtl_pci *rtlpci = rtl_pcidev(pcipriv); |
| struct rtl_mac *rtlmac = rtl_mac(rtlpriv); |
| |
| /* just in case driver is removed before firmware callback */ |
| wait_for_completion(&rtlpriv->firmware_loading_complete); |
| clear_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status); |
| |
| sysfs_remove_group(&pdev->dev.kobj, &rtl_attribute_group); |
| |
| /*ieee80211_unregister_hw will call ops_stop */ |
| if (rtlmac->mac80211_registered == 1) { |
| ieee80211_unregister_hw(hw); |
| rtlmac->mac80211_registered = 0; |
| } else { |
| rtl_deinit_deferred_work(hw); |
| rtlpriv->intf_ops->adapter_stop(hw); |
| } |
| |
| /*deinit rfkill */ |
| rtl_deinit_rfkill(hw); |
| |
| rtl_pci_deinit(hw); |
| rtl_deinit_core(hw); |
| _rtl_pci_io_handler_release(hw); |
| rtlpriv->cfg->ops->deinit_sw_vars(hw); |
| |
| if (rtlpci->irq_alloc) { |
| free_irq(rtlpci->pdev->irq, hw); |
| rtlpci->irq_alloc = 0; |
| } |
| |
| if (rtlpriv->io.pci_mem_start != 0) { |
| pci_iounmap(pdev, (void __iomem *)rtlpriv->io.pci_mem_start); |
| pci_release_regions(pdev); |
| } |
| |
| pci_disable_device(pdev); |
| |
| rtl_pci_disable_aspm(hw); |
| |
| pci_set_drvdata(pdev, NULL); |
| |
| ieee80211_free_hw(hw); |
| } |
| EXPORT_SYMBOL(rtl_pci_disconnect); |
| |
| /*************************************** |
| kernel pci power state define: |
| PCI_D0 ((pci_power_t __force) 0) |
| PCI_D1 ((pci_power_t __force) 1) |
| PCI_D2 ((pci_power_t __force) 2) |
| PCI_D3hot ((pci_power_t __force) 3) |
| PCI_D3cold ((pci_power_t __force) 4) |
| PCI_UNKNOWN ((pci_power_t __force) 5) |
| |
| This function is called when system |
| goes into suspend state mac80211 will |
| call rtl_mac_stop() from the mac80211 |
| suspend function first, So there is |
| no need to call hw_disable here. |
| ****************************************/ |
| int rtl_pci_suspend(struct device *dev) |
| { |
| struct pci_dev *pdev = to_pci_dev(dev); |
| struct ieee80211_hw *hw = pci_get_drvdata(pdev); |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| |
| rtlpriv->cfg->ops->hw_suspend(hw); |
| rtl_deinit_rfkill(hw); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(rtl_pci_suspend); |
| |
| int rtl_pci_resume(struct device *dev) |
| { |
| struct pci_dev *pdev = to_pci_dev(dev); |
| struct ieee80211_hw *hw = pci_get_drvdata(pdev); |
| struct rtl_priv *rtlpriv = rtl_priv(hw); |
| |
| rtlpriv->cfg->ops->hw_resume(hw); |
| rtl_init_rfkill(hw); |
| return 0; |
| } |
| EXPORT_SYMBOL(rtl_pci_resume); |
| |
| struct rtl_intf_ops rtl_pci_ops = { |
| .read_efuse_byte = read_efuse_byte, |
| .adapter_start = rtl_pci_start, |
| .adapter_stop = rtl_pci_stop, |
| .adapter_tx = rtl_pci_tx, |
| .flush = rtl_pci_flush, |
| .reset_trx_ring = rtl_pci_reset_trx_ring, |
| .waitq_insert = rtl_pci_tx_chk_waitq_insert, |
| |
| .disable_aspm = rtl_pci_disable_aspm, |
| .enable_aspm = rtl_pci_enable_aspm, |
| }; |