rtl8192ce: Add new driver

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 1933 insertions, 0 deletions

diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
new file mode 100644
index 00000000000..bf3b5748ee1
--- /dev/null
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -0,0 +1,1933 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2009-2010  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 "core.h"
+#include "wifi.h"
+#include "pci.h"
+#include "base.h"
+#include "ps.h"
+
+static const u16 pcibridge_vendors[PCI_BRIDGE_VENDOR_MAX] = {
+	INTEL_VENDOR_ID,
+	ATI_VENDOR_ID,
+	AMD_VENDOR_ID,
+	SIS_VENDOR_ID
+};
+
+/* 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;
+
+	ppsc->reg_rfps_level = 0;
+	ppsc->b_support_aspm = 0;
+
+	/*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 b_support_aspm = false;
+			ppsc->b_support_aspm = b_support_aspm;
+			break;
+		}
+	case 1:{
+			/*Support ASPM. */
+			bool b_support_aspm = true;
+			bool b_support_backdoor = true;
+			ppsc->b_support_aspm = b_support_aspm;
+
+			/*if(priv->oem_id == RT_CID_TOSHIBA &&
+			   !priv->ndis_adapter.amd_l1_patch)
+			   b_support_backdoor = false; */
+
+			ppsc->b_support_backdoor = b_support_backdoor;
+
+			break;
+		}
+	case 2:
+		/*ASPM value set by chipset. */
+		if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL) {
+			bool b_support_aspm = true;
+			ppsc->b_support_aspm = b_support_aspm;
+		}
+		break;
+	default:
+		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+			 ("switch case not process\n"));
+		break;
+	}
+}
+
+static bool _rtl_pci_platform_switch_device_pci_aspm(
+			struct ieee80211_hw *hw,
+			u8 value)
+{
+	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
+	bool bresult = false;
+
+	value |= 0x40;
+
+	pci_write_config_byte(rtlpci->pdev, 0x80, value);
+
+	return bresult;
+}
+
+/*When we set 0x01 to enable clk request. Set 0x0 to disable clk req.*/
+static bool _rtl_pci_switch_clk_req(struct ieee80211_hw *hw, u8 value)
+{
+	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
+	u8 buffer;
+	bool bresult = false;
+
+	buffer = value;
+
+	pci_write_config_byte(rtlpci->pdev, 0x81, value);
+	bresult = true;
+
+	return bresult;
+}
+
+/*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;
+	u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
+	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;
+
+	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);
+	}
+
+	if (1) {
+		/*for promising device will in L0 state after an I/O. */
+		u8 tmp_u1b;
+		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 */
+	rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
+				     pcicfg_addrport + (num4bytes << 2));
+	rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, 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;
+	u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
+	u8 num4bytes = pcipriv->ndis_adapter.num4bytes;
+	u16 aspmlevel;
+	u8 u_pcibridge_aspmsetting;
+	u8 u_device_aspmsetting;
+
+	if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) {
+		RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
+			 ("PCI(Bridge) UNKNOWN.\n"));
+		return;
+	}
+
+	/*4 Enable Pci Bridge ASPM */
+	rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
+				     pcicfg_addrport + (num4bytes << 2));
+
+	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);
+
+	rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, 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(200);
+}
+
+static bool rtl_pci_get_amd_l1_patch(struct ieee80211_hw *hw)
+{
+	struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
+	u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
+
+	bool status = false;
+	u8 offset_e0;
+	unsigned offset_e4;
+
+	rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
+			pcicfg_addrport + 0xE0);
+	rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, 0xA0);
+
+	rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
+			pcicfg_addrport + 0xE0);
+	rtl_pci_raw_read_port_uchar(PCI_CONF_DATA, &offset_e0);
+
+	if (offset_e0 == 0xA0) {
+		rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
+					     pcicfg_addrport + 0xE4);
+		rtl_pci_raw_read_port_ulong(PCI_CONF_DATA, &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);
+	u8 capabilityoffset = pcipriv->ndis_adapter.pcibridge_pciehdr_offset;
+	u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport;
+	u8 linkctrl_reg;
+	u8 num4bBytes;
+
+	num4bBytes = (capabilityoffset + 0x10) / 4;
+
+	/*Read  Link Control Register */
+	rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS,
+				     pcicfg_addrport + (num4bBytes << 2));
+	rtl_pci_raw_read_port_uchar(PCI_CONF_DATA, &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_find_capability(pdev, PCI_CAP_ID_EXP);
+	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_initialize_adapter_common(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_init_aspm(struct ieee80211_hw *hw)
+{
+	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
+
+	/*close ASPM for AMD defaultly */
+	rtlpci->const_amdpci_aspm = 0;
+
+	/*
+	 * ASPM PS mode.
+	 * 0 - Disable ASPM,
+	 * 1 - Enable ASPM without Clock Req,
+	 * 2 - Enable ASPM with Clock Req,
+	 * 3 - Alwyas Enable ASPM with Clock Req,
+	 * 4 - Always Enable ASPM without Clock Req.
+	 * set defult to RTL8192CE:3 RTL8192E:2
+	 * */
+	rtlpci->const_pci_aspm = 3;
+
+	/*Setting for PCI-E device */
+	rtlpci->const_devicepci_aspm_setting = 0x03;
+
+	/*Setting for PCI-E bridge */
+	rtlpci->const_hostpci_aspm_setting = 0x02;
+
+	/*
+	 * In Hw/Sw Radio Off situation.
+	 * 0 - Default,
+	 * 1 - From ASPM setting without low Mac Pwr,
+	 * 2 - From ASPM setting with low Mac Pwr,
+	 * 3 - Bus D3
+	 * set default to RTL8192CE:0 RTL8192SE:2
+	 */
+	rtlpci->const_hwsw_rfoff_d3 = 0;
+
+	/*
+	 * This setting works for those device with
+	 * backdoor ASPM setting such as EPHY setting.
+	 * 0 - Not support ASPM,
+	 * 1 - Support ASPM,
+	 * 2 - According to chipset.
+	 */
+	rtlpci->const_support_pciaspm = 1;
+
+	_rtl_pci_initialize_adapter_common(hw);
+}
+
+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 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,
+				 le32_to_cpu(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_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;
+			u16 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 = le16_to_cpu(hdr->frame_control);
+
+			if (!stats.b_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
+					ieee80211_rx_irqsafe(hw, skb);
+			} 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_DMESG,
+					 ("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 = cpu_to_le32(*((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;
+	}
+
+}
+
+void _rtl_pci_tx_interrupt(struct ieee80211_hw *hw)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
+	int prio;
+
+	for (prio = 0; prio < RTL_PCI_MAX_TX_QUEUE_COUNT; prio++) {
+		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;
+
+			/*
+			 *beacon packet will only use the first
+			 *descriptor defautly, and the own may not
+			 *be cleared by the hardware, and
+			 *beacon will free in prepare beacon
+			 */
+			if (prio == BEACON_QUEUE || prio == TXCMD_QUEUE ||
+			    prio == HCCA_QUEUE)
+				break;
+
+			own = (u8)rtlpriv->cfg->ops->get_desc((u8 *)entry,
+							       true,
+							       HW_DESC_OWN);
+
+			if (own)
+				break;
+
+			skb = __skb_dequeue(&ring->queue);
+			pci_unmap_single(rtlpci->pdev,
+					 le32_to_cpu(rtlpriv->cfg->ops->
+						     get_desc((u8 *) entry,
+						     true,
+						     HW_DESC_TXBUFF_ADDR)),
+					 skb->len, PCI_DMA_TODEVICE);
+
+			ring->idx = (ring->idx + 1) % ring->entries;
+
+			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 && prio != BEACON_QUEUE) {
+				RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+					 ("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;
+		}
+	}
+}
+
+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_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 = &rtlpci->tx_ring[BEACON_QUEUE];
+	struct ieee80211_hdr *hdr = NULL;
+	struct ieee80211_tx_info *info = NULL;
+	struct sk_buff *pskb = NULL;
+	struct rtl_tx_desc *pdesc = NULL;
+	unsigned int queue_index;
+	u8 temp_one = 1;
+
+	ring = &rtlpci->tx_ring[BEACON_QUEUE];
+	pskb = __skb_dequeue(&ring->queue);
+	if (pskb)
+		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 = (struct ieee80211_hdr *)(pskb->data);
+	info = IEEE80211_SKB_CB(pskb);
+
+	queue_index = BEACON_QUEUE;
+
+	pdesc = &ring->desc[0];
+	rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *) pdesc,
+					info, pskb, queue_index);
+
+	__skb_queue_tail(&ring->queue, pskb);
+
+	rtlpriv->cfg->ops->set_desc((u8 *) pdesc, true, HW_DESC_OWN,
+				    (u8 *)&temp_one);
+
+	return;
+}
+
+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));
+	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
+
+	rtlpci->up_first_time = true;
+	rtlpci->being_init_adapter = false;
+
+	rtlhal->hw = hw;
+	rtlpci->pdev = pdev;
+
+	ppsc->b_inactiveps = false;
+	ppsc->b_leisure_ps = true;
+	ppsc->b_fwctrl_lps = true;
+	ppsc->b_reg_fwctrl_lps = 3;
+	ppsc->reg_max_lps_awakeintvl = 5;
+
+	if (ppsc->b_reg_fwctrl_lps == 1)
+		ppsc->fwctrl_psmode = FW_PS_MIN_MODE;
+	else if (ppsc->b_reg_fwctrl_lps == 2)
+		ppsc->fwctrl_psmode = FW_PS_MAX_MODE;
+	else if (ppsc->b_reg_fwctrl_lps == 3)
+		ppsc->fwctrl_psmode = FW_PS_DTIM_MODE;
+
+	/*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);
+}
+
+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 = cpu_to_le32((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;
+
+		for (i = 0; i < rtlpci->rxringcount; i++) {
+			struct sk_buff *skb =
+			    dev_alloc_skb(rtlpci->rxbuffersize);
+			u32 bufferaddress;
+			entry = &rtlpci->rx_ring[rx_queue_idx].desc[i];
+			if (!skb)
+				return 0;
+
+			/*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 = cpu_to_le32(*((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,
+				 le32_to_cpu(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;
+	}
+
+	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);
+		}
+
+		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,
+						 le32_to_cpu(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;
+}
+
+unsigned int _rtl_mac_to_hwqueue(u16 fc,
+		unsigned int mac80211_queue_index)
+{
+	unsigned int hw_queue_index;
+
+	if (unlikely(ieee80211_is_beacon(fc))) {
+		hw_queue_index = BEACON_QUEUE;
+		goto out;
+	}
+
+	if (ieee80211_is_mgmt(fc)) {
+		hw_queue_index = MGNT_QUEUE;
+		goto out;
+	}
+
+	switch (mac80211_queue_index) {
+	case 0:
+		hw_queue_index = VO_QUEUE;
+		break;
+	case 1:
+		hw_queue_index = VI_QUEUE;
+		break;
+	case 2:
+		hw_queue_index = BE_QUEUE;;
+		break;
+	case 3:
+		hw_queue_index = BK_QUEUE;
+		break;
+	default:
+		hw_queue_index = BE_QUEUE;
+		RT_ASSERT(false, ("QSLT_BE queue, skb_queue:%d\n",
+				  mac80211_queue_index));
+		break;
+	}
+
+out:
+	return hw_queue_index;
+}
+
+int rtl_pci_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct rtl8192_tx_ring *ring;
+	struct rtl_tx_desc *pdesc;
+	u8 idx;
+	unsigned int queue_index, hw_queue;
+	unsigned long flags;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data);
+	u16 fc = le16_to_cpu(hdr->frame_control);
+	u8 *pda_addr = hdr->addr1;
+	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
+	/*ssn */
+	u8 *qc = NULL;
+	u8 tid = 0;
+	u16 seq_number = 0;
+	u8 own;
+	u8 temp_one = 1;
+
+	if (ieee80211_is_mgmt(fc))
+		rtl_tx_mgmt_proc(hw, skb);
+	rtl_action_proc(hw, skb, true);
+
+	queue_index = skb_get_queue_mapping(skb);
+	hw_queue = _rtl_mac_to_hwqueue(fc, queue_index);
+
+	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_nullfunc(fc)) {
+	 *      spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
+	 *      return 1;
+	 *}
+	 */
+
+	if (ieee80211_is_data_qos(fc)) {
+		qc = ieee80211_get_qos_ctl(hdr);
+		tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
+
+		seq_number = mac->tids[tid].seq_number;
+		seq_number &= IEEE80211_SCTL_SEQ;
+		/*
+		 *hdr->seq_ctrl = hdr->seq_ctrl &
+		 *cpu_to_le16(IEEE80211_SCTL_FRAG);
+		 *hdr->seq_ctrl |= cpu_to_le16(seq_number);
+		 */
+
+		seq_number += 1;
+	}
+
+	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);
+
+	__skb_queue_tail(&ring->queue, skb);
+
+	rtlpriv->cfg->ops->set_desc((u8 *) pdesc, true,
+				    HW_DESC_OWN, (u8 *)&temp_one);
+
+	if (!ieee80211_has_morefrags(hdr->frame_control)) {
+		if (qc)
+			mac->tids[tid].seq_number = seq_number;
+	}
+
+	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;
+}
+
+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);
+
+	flush_workqueue(rtlpriv->works.rtl_wq);
+	destroy_workqueue(rtlpriv->works.rtl_wq);
+
+}
+
+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"));
+		return err;
+	}
+
+	return 1;
+}
+
+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 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;
+}
+
+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 before disable interrrupt&adapter
+	 *and will do it immediately.
+	 */
+	set_hal_stop(rtlhal);
+
+	rtlpriv->cfg->ops->disable_interrupt(hw);
+
+	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);
+	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;
+
+	venderid = pdev->vendor;
+	deviceid = pdev->device;
+	pci_read_config_byte(pdev, 0x8, &revisionid);
+	pci_read_config_word(pdev, 0x3C, &irqline);
+
+	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 {
+		RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
+			 ("Err: Unknown device -"
+			  " vid/did=%x/%x\n", venderid, deviceid));
+
+		rtlhal->hw_type = RTL_DEFAULT_HARDWARE_TYPE;
+	}
+
+	/*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);
+
+	/*find bridge info */
+	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 =
+		    bridge_pdev->pcie_cap;
+		pcipriv->ndis_adapter.pcicfg_addrport =
+		    (pcipriv->ndis_adapter.pcibridge_busnum << 16) |
+		    (pcipriv->ndis_adapter.pcibridge_devnum << 11) |
+		    (pcipriv->ndis_adapter.pcibridge_funcnum << 8) | (1 << 31);
+		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"));
+			pci_disable_device(pdev);
+			return -ENOMEM;
+		}
+	}
+
+	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 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"));
+		return err;
+	}
+
+	pmem_start = pci_resource_start(pdev, 2);
+	pmem_len = pci_resource_len(pdev, 2);
+	pmem_flags = pci_resource_flags(pdev, 2);
+
+	/*shared mem start */
+	rtlpriv->io.pci_mem_start =
+			(unsigned long)pci_iomap(pdev, 2, pmem_len);
+	if (rtlpriv->io.pci_mem_start == 0) {
+		RT_ASSERT(false, ("Can't map PCI mem\n"));
+		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);
+
+	/* init cfg & intf_ops */
+	rtlpriv->rtlhal.interface = INTF_PCI;
+	rtlpriv->cfg = (struct rtl_hal_cfg *)(id->driver_data);
+	rtlpriv->intf_ops = &rtl_pci_ops;
+
+	/* find adapter */
+	_rtl_pci_find_adapter(pdev, hw);
+
+	/* 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"));
+		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 = ieee80211_register_hw(hw);
+	if (err) {
+		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+			 ("Can't register mac80211 hw.\n"));
+		goto fail3;
+	} else {
+		rtlpriv->mac80211.mac80211_registered = 1;
+	}
+
+	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;
+	}
+
+	/*init rfkill */
+	rtl_init_rfkill(hw);
+
+	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;
+	} else {
+		rtlpci->irq_alloc = 1;
+	}
+
+	set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);
+	return 0;
+
+fail3:
+	pci_set_drvdata(pdev, NULL);
+	rtl_deinit_core(hw);
+	_rtl_pci_io_handler_release(hw);
+	ieee80211_free_hw(hw);
+
+	if (rtlpriv->io.pci_mem_start != 0)
+		pci_iounmap(pdev, (void *)rtlpriv->io.pci_mem_start);
+
+fail2:
+	pci_release_regions(pdev);
+
+fail1:
+
+	pci_disable_device(pdev);
+
+	return -ENODEV;
+
+}
+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);
+
+	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);
+	rtlpriv->cfg->ops->deinit_sw_leds(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 *)rtlpriv->io.pci_mem_start);
+		pci_release_regions(pdev);
+	}
+
+	pci_disable_device(pdev);
+	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 pci_dev *pdev, pm_message_t state)
+{
+	pci_save_state(pdev);
+	pci_disable_device(pdev);
+	pci_set_power_state(pdev, PCI_D3hot);
+
+	return 0;
+}
+EXPORT_SYMBOL(rtl_pci_suspend);
+
+int rtl_pci_resume(struct pci_dev *pdev)
+{
+	int ret;
+
+	pci_set_power_state(pdev, PCI_D0);
+	ret = pci_enable_device(pdev);
+	if (ret) {
+		RT_ASSERT(false, ("ERR: <======\n"));
+		return ret;
+	}
+
+	pci_restore_state(pdev);
+
+	return 0;
+}
+EXPORT_SYMBOL(rtl_pci_resume);
+
+struct rtl_intf_ops rtl_pci_ops = {
+	.adapter_start = rtl_pci_start,
+	.adapter_stop = rtl_pci_stop,
+	.adapter_tx = rtl_pci_tx,
+	.reset_trx_ring = rtl_pci_reset_trx_ring,
+
+	.disable_aspm = rtl_pci_disable_aspm,
+	.enable_aspm = rtl_pci_enable_aspm,
+};