Staging: Added Realtek rtl8192u driver to staging

Add Realtek linux driver for rtl8192u as provided by Realtek

rtl8192u_linux_2.6.0006.1031.2008.tar.gz, send to me C/C staging ML.

This version won't compile against upstream, doesn't follow
Linux CodingStyle and has their own ieee80211 stack.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/rtl8192u/r819xU_phy.h b/drivers/staging/rtl8192u/r819xU_phy.h
new file mode 100644
index 0000000..c165ac1
--- /dev/null
+++ b/drivers/staging/rtl8192u/r819xU_phy.h
@@ -0,0 +1,94 @@
+#ifndef _R819XU_PHY_H
+#define _R819XU_PHY_H
+
+/* Channel switch:The size of command tables for switch channel*/
+#define MAX_PRECMD_CNT 16
+#define MAX_RFDEPENDCMD_CNT 16
+#define MAX_POSTCMD_CNT 16
+
+typedef enum _SwChnlCmdID{
+	CmdID_End,
+	CmdID_SetTxPowerLevel,
+	CmdID_BBRegWrite10,
+	CmdID_WritePortUlong,
+	CmdID_WritePortUshort,
+	CmdID_WritePortUchar,
+	CmdID_RF_WriteReg,
+}SwChnlCmdID;
+
+/*--------------------------------Define structure--------------------------------*/
+/* 1. Switch channel related */
+typedef struct _SwChnlCmd{
+	SwChnlCmdID	CmdID;
+	u32			Para1;
+	u32			Para2;
+	u32			msDelay;
+}__attribute__ ((packed)) SwChnlCmd;
+
+extern u32 rtl819XMACPHY_Array_PG[];
+extern u32 rtl819XPHY_REG_1T2RArray[];
+extern u32 rtl819XAGCTAB_Array[];
+extern u32 rtl819XRadioA_Array[];
+extern u32 rtl819XRadioB_Array[];
+extern u32 rtl819XRadioC_Array[];
+extern u32 rtl819XRadioD_Array[];
+
+typedef enum _HW90_BLOCK{
+	HW90_BLOCK_MAC = 0,
+	HW90_BLOCK_PHY0 = 1,
+	HW90_BLOCK_PHY1 = 2,
+	HW90_BLOCK_RF = 3,
+	HW90_BLOCK_MAXIMUM = 4, // Never use this
+}HW90_BLOCK_E, *PHW90_BLOCK_E;
+
+typedef enum _RF90_RADIO_PATH{
+	RF90_PATH_A = 0,			//Radio Path A
+	RF90_PATH_B = 1,			//Radio Path B
+	RF90_PATH_C = 2,			//Radio Path C
+	RF90_PATH_D = 3,			//Radio Path D
+	RF90_PATH_MAX				//Max RF number 92 support
+}RF90_RADIO_PATH_E, *PRF90_RADIO_PATH_E;
+
+#define bMaskByte0                0xff
+#define bMaskByte1                0xff00
+#define bMaskByte2                0xff0000
+#define bMaskByte3                0xff000000
+#define bMaskHWord                0xffff0000
+#define bMaskLWord                0x0000ffff
+#define bMaskDWord                0xffffffff
+
+//extern u32 rtl8192_CalculateBitShift(u32 dwBitMask);
+extern u8 rtl8192_phy_CheckIsLegalRFPath(struct net_device* dev, u32 eRFPath);
+extern void rtl8192_setBBreg(struct net_device* dev, u32 dwRegAddr, u32 dwBitMask, u32 dwData);
+extern u32 rtl8192_QueryBBReg(struct net_device* dev, u32 dwRegAddr, u32 dwBitMask);
+//extern u32 rtl8192_phy_RFSerialRead(struct net_device* dev, RF90_RADIO_PATH_E eRFPath, u32 Offset);
+//extern void rtl8192_phy_RFSerialWrite(struct net_device* dev, RF90_RADIO_PATH_E eRFPath, u32 Offset, u32 Data);
+extern void rtl8192_phy_SetRFReg(struct net_device* dev, RF90_RADIO_PATH_E eRFPath, u32 RegAddr, u32 BitMask, u32 Data);
+extern u32 rtl8192_phy_QueryRFReg(struct net_device* dev, RF90_RADIO_PATH_E eRFPath, u32 RegAddr, u32 BitMask);
+extern void rtl8192_phy_configmac(struct net_device* dev);
+extern void rtl8192_phyConfigBB(struct net_device* dev, u8 ConfigType);
+//extern void rtl8192_InitBBRFRegDef(struct net_device* dev);
+extern u8 rtl8192_phy_checkBBAndRF(struct net_device* dev, HW90_BLOCK_E CheckBlock, RF90_RADIO_PATH_E eRFPath);
+//extern void rtl8192_BB_Config_ParaFile(struct net_device* dev);
+extern void rtl8192_BBConfig(struct net_device* dev);
+extern void rtl8192_phy_getTxPower(struct net_device* dev);
+extern void rtl8192_phy_setTxPower(struct net_device* dev, u8 channel);
+extern void rtl8192_phy_RFConfig(struct net_device* dev);
+extern void rtl8192_phy_updateInitGain(struct net_device* dev);
+extern u8 rtl8192_phy_ConfigRFWithHeaderFile(struct net_device* dev, RF90_RADIO_PATH_E	eRFPath);
+
+extern u8 rtl8192_phy_SwChnl(struct net_device* dev, u8 channel);
+extern void rtl8192_SetBWMode(struct net_device *dev, HT_CHANNEL_WIDTH	Bandwidth, HT_EXTCHNL_OFFSET Offset);
+extern void rtl8192_SwChnl_WorkItem(struct net_device *dev);
+void rtl8192_SetBWModeWorkItem(struct net_device *dev);
+extern bool rtl8192_SetRFPowerState(struct net_device *dev, RT_RF_POWER_STATE eRFPowerState);
+//added by amy
+extern void InitialGain819xUsb(struct net_device *dev,	u8 Operation);
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
+extern void InitialGainOperateWorkItemCallBack(struct work_struct *work);
+#else
+extern void InitialGainOperateWorkItemCallBack(struct net_device *dev);
+#endif
+
+#endif