Staging: add w35und wifi driver

This is driver for w35und usb wifi -- also in kohjinsha
subnotebook. It should work well enough to associate and ping, but it
obviously needs to be rewritten two more times...

OTOH worst horrors (like embedded wifi stack) should have been fixed
already...

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 277 insertions, 0 deletions

diff --git a/drivers/staging/winbond/wblinux.c b/drivers/staging/winbond/wblinux.c
new file mode 100644
index 000000000000..2eade5a47b19
--- /dev/null
+++ b/drivers/staging/winbond/wblinux.c
@@ -0,0 +1,277 @@
+//============================================================================
+//  Copyright (c) 1996-2005 Winbond Electronic Corporation
+//
+//  Module Name:
+//    wblinux.c
+//
+//  Abstract:
+//    Linux releated routines
+//
+//============================================================================
+#include "os_common.h"
+
+u32
+WBLINUX_MemoryAlloc(void* *VirtualAddress, u32 Length)
+{
+	*VirtualAddress = kzalloc( Length, GFP_ATOMIC ); //GFP_KERNEL is not suitable
+
+	if (*VirtualAddress == NULL)
+		return 0;
+	return 1;
+}
+
+s32
+EncapAtomicInc(PADAPTER Adapter, void* pAtomic)
+{
+	PWBLINUX pWbLinux = &Adapter->WbLinux;
+	u32	ltmp;
+	PULONG	pltmp = (PULONG)pAtomic;
+	OS_SPIN_LOCK_ACQUIRED( &pWbLinux->AtomicSpinLock );
+	(*pltmp)++;
+	ltmp = (*pltmp);
+	OS_SPIN_LOCK_RELEASED( &pWbLinux->AtomicSpinLock );
+	return ltmp;
+}
+
+s32
+EncapAtomicDec(PADAPTER Adapter, void* pAtomic)
+{
+	PWBLINUX pWbLinux = &Adapter->WbLinux;
+	u32	ltmp;
+	PULONG	pltmp = (PULONG)pAtomic;
+	OS_SPIN_LOCK_ACQUIRED( &pWbLinux->AtomicSpinLock );
+	(*pltmp)--;
+	ltmp = (*pltmp);
+	OS_SPIN_LOCK_RELEASED( &pWbLinux->AtomicSpinLock );
+	return ltmp;
+}
+
+unsigned char
+WBLINUX_Initial(PADAPTER Adapter)
+{
+	PWBLINUX pWbLinux = &Adapter->WbLinux;
+
+	OS_SPIN_LOCK_ALLOCATE( &pWbLinux->SpinLock );
+	OS_SPIN_LOCK_ALLOCATE( &pWbLinux->AtomicSpinLock );
+	return TRUE;
+}
+
+void
+WBLinux_ReceivePacket(PADAPTER Adapter, PRXLAYER1 pRxLayer1)
+{
+	BUG();
+}
+
+
+void
+WBLINUX_GetNextPacket(PADAPTER Adapter,  PDESCRIPTOR pDes)
+{
+	BUG();
+}
+
+void
+WBLINUX_GetNextPacketCompleted(PADAPTER Adapter, PDESCRIPTOR pDes)
+{
+	BUG();
+}
+
+void
+WBLINUX_Destroy(PADAPTER Adapter)
+{
+	WBLINUX_stop( Adapter );
+	OS_SPIN_LOCK_FREE( &pWbNdis->SpinLock );
+#ifdef _PE_USB_INI_DUMP_
+	WBDEBUG(("[w35und] unregister_netdev!\n"));
+#endif
+}
+
+void
+WBLINUX_stop(  PADAPTER Adapter )
+{
+	PWBLINUX	pWbLinux = &Adapter->WbLinux;
+	struct sk_buff *pSkb;
+
+	if (OS_ATOMIC_INC( Adapter, &pWbLinux->ThreadCount ) == 1) {
+		// Shutdown module immediately
+		pWbLinux->shutdown = 1;
+
+		while (pWbLinux->skb_array[ pWbLinux->skb_GetIndex ]) {
+			// Trying to free the un-sending packet
+			pSkb = pWbLinux->skb_array[ pWbLinux->skb_GetIndex ];
+			pWbLinux->skb_array[ pWbLinux->skb_GetIndex ] = NULL;
+			if( in_irq() )
+				dev_kfree_skb_irq( pSkb );
+			else
+				dev_kfree_skb( pSkb );
+
+			pWbLinux->skb_GetIndex++;
+			pWbLinux->skb_GetIndex %= WBLINUX_PACKET_ARRAY_SIZE;
+		}
+
+#ifdef _PE_STATE_DUMP_
+		WBDEBUG(( "[w35und] SKB_RELEASE OK\n" ));
+#endif
+	}
+
+	OS_ATOMIC_DEC( Adapter, &pWbLinux->ThreadCount );
+}
+
+void
+WbWlanHalt(  PADAPTER Adapter )
+{
+	//---------------------
+	Adapter->sLocalPara.ShutDowned = TRUE;
+
+	Mds_Destroy( Adapter );
+
+	// Turn off Rx and Tx hardware ability
+	hal_stop( &Adapter->sHwData );
+#ifdef _PE_USB_INI_DUMP_
+	WBDEBUG(("[w35und] Hal_stop O.K.\n"));
+#endif
+	OS_SLEEP(100000);// Waiting Irp completed
+
+	// Destroy the NDIS module
+	WBLINUX_Destroy( Adapter );
+
+	// Halt the HAL
+	hal_halt(&Adapter->sHwData, NULL);
+}
+
+unsigned char
+WbWLanInitialize(PADAPTER Adapter)
+{
+	phw_data_t	pHwData;
+	PUCHAR		pMacAddr, pMacAddr2;
+	u32		InitStep = 0;
+	u8		EEPROM_region;
+	u8		HwRadioOff;
+
+	do {
+		//
+		// Setting default value for Linux
+		//
+		Adapter->sLocalPara.region_INF = REGION_AUTO;
+		Adapter->sLocalPara.TxRateMode = RATE_AUTO;
+		psLOCAL->bMacOperationMode = MODE_802_11_BG;	// B/G mode
+		Adapter->Mds.TxRTSThreshold = DEFAULT_RTSThreshold;
+		Adapter->Mds.TxFragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD;
+		hal_set_phy_type( &Adapter->sHwData, RF_WB_242_1 );
+		Adapter->sLocalPara.MTUsize = MAX_ETHERNET_PACKET_SIZE;
+		psLOCAL->bPreambleMode = AUTO_MODE;
+		Adapter->sLocalPara.RadioOffStatus.boSwRadioOff = FALSE;
+		pHwData = &Adapter->sHwData;
+		hal_set_phy_type( pHwData, RF_DECIDE_BY_INF );
+
+		//
+		// Initial each module and variable
+		//
+		if (!WBLINUX_Initial(Adapter)) {
+#ifdef _PE_USB_INI_DUMP_
+			WBDEBUG(("[w35und]WBNDIS initialization failed\n"));
+#endif
+			break;
+		}
+
+		// Initial Software variable
+		Adapter->sLocalPara.ShutDowned = FALSE;
+
+		//added by ws for wep key error detection
+		Adapter->sLocalPara.bWepKeyError= FALSE;
+		Adapter->sLocalPara.bToSelfPacketReceived = FALSE;
+		Adapter->sLocalPara.WepKeyDetectTimerCount= 2 * 100; /// 2 seconds
+
+		// Initial USB hal
+		InitStep = 1;
+		pHwData = &Adapter->sHwData;
+		if (!hal_init_hardware(pHwData, Adapter))
+			break;
+
+		EEPROM_region = hal_get_region_from_EEPROM( pHwData );
+		if (EEPROM_region != REGION_AUTO)
+			psLOCAL->region = EEPROM_region;
+		else {
+			if (psLOCAL->region_INF != REGION_AUTO)
+				psLOCAL->region = psLOCAL->region_INF;
+			else
+				psLOCAL->region = REGION_USA;	//default setting
+		}
+
+		// Get Software setting flag from hal
+		Adapter->sLocalPara.boAntennaDiversity = FALSE;
+		if (hal_software_set(pHwData) & 0x00000001)
+			Adapter->sLocalPara.boAntennaDiversity = TRUE;
+
+		//
+		// For TS module
+		//
+		InitStep = 2;
+
+		// For MDS module
+		InitStep = 3;
+		Mds_initial(Adapter);
+
+		//=======================================
+		// Initialize the SME, SCAN, MLME, ROAM
+		//=======================================
+		InitStep = 4;
+		InitStep = 5;
+		InitStep = 6;
+
+		// If no user-defined address in the registry, use the addresss "burned" on the NIC instead.
+		pMacAddr = Adapter->sLocalPara.ThisMacAddress;
+		pMacAddr2 = Adapter->sLocalPara.PermanentAddress;
+		hal_get_permanent_address( pHwData, Adapter->sLocalPara.PermanentAddress );// Reading ethernet address from EEPROM
+		if (OS_MEMORY_COMPARE(pMacAddr, "\x00\x00\x00\x00\x00\x00", MAC_ADDR_LENGTH )) // Is equal
+		{
+			memcpy( pMacAddr, pMacAddr2, MAC_ADDR_LENGTH );
+		} else {
+			// Set the user define MAC address
+			hal_set_ethernet_address( pHwData, Adapter->sLocalPara.ThisMacAddress );
+		}
+
+		//get current antenna
+		psLOCAL->bAntennaNo = hal_get_antenna_number(pHwData);
+#ifdef _PE_STATE_DUMP_
+		WBDEBUG(("Driver init, antenna no = %d\n", psLOCAL->bAntennaNo));
+#endif
+		hal_get_hw_radio_off( pHwData );
+
+		// Waiting for HAL setting OK
+		while (!hal_idle(pHwData))
+			OS_SLEEP(10000);
+
+		MTO_Init(Adapter);
+
+		HwRadioOff = hal_get_hw_radio_off( pHwData );
+		psLOCAL->RadioOffStatus.boHwRadioOff = !!HwRadioOff;
+
+		hal_set_radio_mode( pHwData, (unsigned char)(psLOCAL->RadioOffStatus.boSwRadioOff || psLOCAL->RadioOffStatus.boHwRadioOff) );
+
+		hal_driver_init_OK(pHwData) = 1; // Notify hal that the driver is ready now.
+		//set a tx power for reference.....
+//		sme_set_tx_power_level(Adapter, 12);	FIXME?
+		return TRUE;
+	}
+	while(FALSE);
+
+	switch (InitStep) {
+	case 5:
+	case 4:
+	case 3: Mds_Destroy( Adapter );
+	case 2:
+	case 1: WBLINUX_Destroy( Adapter );
+		hal_halt( pHwData, NULL );
+	case 0: break;
+	}
+
+	return FALSE;
+}
+
+void WBLINUX_ConnectStatus(PADAPTER Adapter, u32 flag)
+{
+	PWBLINUX	pWbLinux = &Adapter->WbLinux;
+
+	pWbLinux->LinkStatus = flag; // OS_DISCONNECTED	or  OS_CONNECTED
+}
+