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,