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, 150 insertions, 0 deletions

diff --git a/drivers/staging/winbond/mlmetxrx.c b/drivers/staging/winbond/mlmetxrx.c
new file mode 100644
index 00000000000..46b091e9679
--- /dev/null
+++ b/drivers/staging/winbond/mlmetxrx.c
@@ -0,0 +1,150 @@
+//============================================================================
+//  Module Name:
+//    MLMETxRx.C
+//
+//  Description:
+//    The interface between MDS (MAC Data Service) and MLME.
+//
+//  Revision History:
+//  --------------------------------------------------------------------------
+//          200209      UN20 Jennifer Xu
+//                      Initial Release
+//          20021108    PD43 Austin Liu
+//          20030117    PD43 Austin Liu
+//                      Deleted MLMEReturnPacket and MLMEProcThread()
+//
+//  Copyright (c) 1996-2002 Winbond Electronics Corp. All Rights Reserved.
+//============================================================================
+#include "os_common.h"
+
+void MLMEResetTxRx(PWB32_ADAPTER Adapter)
+{
+	s32     i;
+
+	// Reset the interface between MDS and MLME
+	for (i = 0; i < MAX_NUM_TX_MMPDU; i++)
+		Adapter->sMlmeFrame.TxMMPDUInUse[i] = FALSE;
+	for (i = 0; i < MAX_NUM_RX_MMPDU; i++)
+		Adapter->sMlmeFrame.SaveRxBufSlotInUse[i] = FALSE;
+
+	Adapter->sMlmeFrame.wNumRxMMPDUInMLME   = 0;
+	Adapter->sMlmeFrame.wNumRxMMPDUDiscarded = 0;
+	Adapter->sMlmeFrame.wNumRxMMPDU          = 0;
+	Adapter->sMlmeFrame.wNumTxMMPDUDiscarded = 0;
+	Adapter->sMlmeFrame.wNumTxMMPDU          = 0;
+	Adapter->sLocalPara.boCCAbusy    = FALSE;
+	Adapter->sLocalPara.iPowerSaveMode     = PWR_ACTIVE;     // Power active
+}
+
+//=============================================================================
+//	Function:
+//    MLMEGetMMPDUBuffer()
+//
+//	Description:
+//    Return the pointer to an available data buffer with
+//    the size MAX_MMPDU_SIZE for a MMPDU.
+//
+//  Arguments:
+//    Adapter   - pointer to the miniport adapter context.
+//
+//	Return value:
+//    NULL     : No available data buffer available
+//    Otherwise: Pointer to the data buffer
+//=============================================================================
+
+/* FIXME: Should this just be replaced with kmalloc() and kfree()? */
+u8 *MLMEGetMMPDUBuffer(PWB32_ADAPTER Adapter)
+{
+	s32 i;
+	u8 *returnVal;
+
+	for (i = 0; i< MAX_NUM_TX_MMPDU; i++) {
+		if (Adapter->sMlmeFrame.TxMMPDUInUse[i] == FALSE)
+			break;
+	}
+	if (i >= MAX_NUM_TX_MMPDU) return NULL;
+
+	returnVal = (u8 *)&(Adapter->sMlmeFrame.TxMMPDU[i]);
+	Adapter->sMlmeFrame.TxMMPDUInUse[i] = TRUE;
+
+	return returnVal;
+}
+
+//=============================================================================
+u8 MLMESendFrame(PWB32_ADAPTER Adapter, u8 *pMMPDU, u16 len, u8 DataType)
+/*	DataType : FRAME_TYPE_802_11_MANAGEMENT, FRAME_TYPE_802_11_MANAGEMENT_CHALLENGE,
+				FRAME_TYPE_802_11_DATA */
+{
+	if (Adapter->sMlmeFrame.IsInUsed != PACKET_FREE_TO_USE) {
+		Adapter->sMlmeFrame.wNumTxMMPDUDiscarded++;
+		return FALSE;
+	}
+	Adapter->sMlmeFrame.IsInUsed = PACKET_COME_FROM_MLME;
+
+	// Keep information for sending
+	Adapter->sMlmeFrame.pMMPDU = pMMPDU;
+	Adapter->sMlmeFrame.DataType = DataType;
+	// len must be the last setting due to QUERY_SIZE_SECOND of Mds
+	Adapter->sMlmeFrame.len = len;
+	Adapter->sMlmeFrame.wNumTxMMPDU++;
+
+	// H/W will enter power save by set the register. S/W don't send null frame
+	//with PWRMgt bit enbled to enter power save now.
+
+	// Transmit NDIS packet
+	Mds_Tx(Adapter);
+	return TRUE;
+}
+
+void
+MLME_GetNextPacket(PADAPTER Adapter, PDESCRIPTOR pDes)
+{
+#define DESCRIPTOR_ADD_BUFFER( _D, _A, _S ) \
+{\
+	_D->InternalUsed = _D->buffer_start_index + _D->buffer_number; \
+	_D->InternalUsed %= MAX_DESCRIPTOR_BUFFER_INDEX; \
+	_D->buffer_address[ _D->InternalUsed ] = _A; \
+	_D->buffer_size[ _D->InternalUsed ] = _S; \
+	_D->buffer_total_size += _S; \
+	_D->buffer_number++;\
+}
+
+	DESCRIPTOR_ADD_BUFFER( pDes, Adapter->sMlmeFrame.pMMPDU, Adapter->sMlmeFrame.len );
+	pDes->Type = Adapter->sMlmeFrame.DataType;
+}
+
+void MLMEfreeMMPDUBuffer(PWB32_ADAPTER Adapter, PCHAR pData)
+{
+	int i;
+
+	// Reclaim the data buffer
+	for (i = 0; i < MAX_NUM_TX_MMPDU; i++) {
+		if (pData == (PCHAR)&(Adapter->sMlmeFrame.TxMMPDU[i]))
+			break;
+	}
+	if (Adapter->sMlmeFrame.TxMMPDUInUse[i])
+		Adapter->sMlmeFrame.TxMMPDUInUse[i] = FALSE;
+	else  {
+		// Something wrong
+		// PD43 Add debug code here???
+	}
+}
+
+void
+MLME_SendComplete(PADAPTER Adapter, u8 PacketID, unsigned char SendOK)
+{
+	MLME_TXCALLBACK	TxCallback;
+
+    // Reclaim the data buffer
+	Adapter->sMlmeFrame.len = 0;
+	MLMEfreeMMPDUBuffer( Adapter, Adapter->sMlmeFrame.pMMPDU );
+
+
+	TxCallback.bResult = MLME_SUCCESS;
+
+	// Return resource
+	Adapter->sMlmeFrame.IsInUsed = PACKET_FREE_TO_USE;
+}
+
+
+