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windows-nt/Source/XPSP1/NT/net/irda/irlap/irlapio.c

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/*****************************************************************************
*
* Copyright (c) 1995 Microsoft Corporation
*
* File: irlapio.c
*
* Description: IRLAP I/O routines
*
* Author: mbert
*
* Date: 4/25/95
*
*/
#include <irda.h>
#include <irioctl.h>
#include <irlap.h>
#include <irlmp.h>
#include <irlapp.h>
#include <irlapio.h>
#include <irlaplog.h>
extern UCHAR IrlapBroadcastDevAddr[];
__inline
VOID
SendFrame(PIRLAP_CB pIrlapCb, PIRDA_MSG pMsg)
{
pMsg->Prim = MAC_DATA_REQ;
IrmacDown(pIrlapCb->pIrdaLinkCb, pMsg);
// IRLAP_LOG_ACTION((pIrlapCb, TEXT("MAC_DATA_REQ: %s"), FrameToStr(pMsg)));
}
/*****************************************************************************
*
* @func ret_type | func_name | funcdesc
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
* @parm data_type | parm_name | description
*
* @comm
* comments
*/
VOID
ClearRxWindow(PIRLAP_CB pIrlapCb)
{
UINT i;
// Remove everything from Rx window
for (i = pIrlapCb->Vr; i != pIrlapCb->RxWin.End; i = (i+1) % IRLAP_MOD)
{
if (pIrlapCb->RxWin.pMsg[i] != NULL)
{
ASSERT(pIrlapCb->RxWin.pMsg[i]->IRDA_MSG_RefCnt);
pIrlapCb->RxWin.pMsg[i]->IRDA_MSG_RefCnt -= 1;
if (pIrlapCb->RxWin.pMsg[i]->IRDA_MSG_RefCnt == 0)
{
pIrlapCb->RxWin.pMsg[i]->Prim = MAC_DATA_RESP;
IrmacDown(pIrlapCb->pIrdaLinkCb, pIrlapCb->RxWin.pMsg[i]);
}
pIrlapCb->RxWin.pMsg[i] = NULL;
}
pIrlapCb->RxWin.End = pIrlapCb->Vr;
}
}
/*****************************************************************************
*
* @func ret_type | func_name | funcdesc
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
* @parm data_type | parm_name | description
*
* @comm
* comments
*/
VOID
SendDscvXIDCmd(PIRLAP_CB pIrlapCb)
{
UINT rc = SUCCESS;
IRLAP_XID_DSCV_FORMAT XIDFormat;
CHAR *DscvInfo;
int DscvInfoLen;
IRDA_MSG *pIMsg;
RtlCopyMemory(XIDFormat.SrcAddr, pIrlapCb->LocalDevice.DevAddr,
IRDA_DEV_ADDR_LEN);
RtlCopyMemory(XIDFormat.DestAddr, IrlapBroadcastDevAddr,
IRDA_DEV_ADDR_LEN);
XIDFormat.NoOfSlots = IRLAP_SLOT_FLAG(pIrlapCb->MaxSlot);
XIDFormat.GenNewAddr = pIrlapCb->GenNewAddr;
XIDFormat.Reserved = 0;
if (pIrlapCb->SlotCnt == pIrlapCb->MaxSlot)
{
DscvInfo = pIrlapCb->LocalDevice.DscvInfo;
DscvInfoLen = pIrlapCb->LocalDevice.DscvInfoLen;
XIDFormat.SlotNo = IRLAP_END_DSCV_SLOT_NO;
}
else
{
DscvInfo = NULL;
DscvInfoLen = 0;
XIDFormat.SlotNo = (UCHAR) pIrlapCb->SlotCnt;
}
XIDFormat.Version = (UCHAR) pIrlapCb->LocalDevice.IRLAP_Version;
if (!(pIMsg = AllocTxMsg(pIrlapCb->pIrdaLinkCb)))
return;
pIMsg->IRDA_MSG_pWrite = Format_DscvXID(pIMsg,
IRLAP_BROADCAST_CONN_ADDR,
IRLAP_CMD, IRLAP_PFBIT_SET,
&XIDFormat, DscvInfo,
DscvInfoLen);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: DscvXidCmd")));
SendFrame(pIrlapCb, pIMsg);
}
/****************************************************************************S*
*
* @func ret_type | func_name | funcdesc
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
* @parm data_type | parm_name | description
*
* @comm
* comments
*/
VOID
SendDscvXIDRsp(PIRLAP_CB pIrlapCb)
{
IRLAP_XID_DSCV_FORMAT XIDFormat;
IRDA_MSG *pIMsg;
XIDFormat.GenNewAddr = pIrlapCb->GenNewAddr;
if (pIrlapCb->GenNewAddr)
{
StoreULAddr(pIrlapCb->LocalDevice.DevAddr, GetMyDevAddr(TRUE));
pIrlapCb->GenNewAddr = FALSE;
}
RtlCopyMemory(XIDFormat.SrcAddr, pIrlapCb->LocalDevice.DevAddr,
IRDA_DEV_ADDR_LEN);
RtlCopyMemory(XIDFormat.DestAddr, pIrlapCb->RemoteDevice.DevAddr,
IRDA_DEV_ADDR_LEN);
XIDFormat.NoOfSlots = IRLAP_SLOT_FLAG(pIrlapCb->RemoteMaxSlot);
XIDFormat.Reserved = 0;
XIDFormat.SlotNo = (UCHAR) pIrlapCb->RespSlot;
XIDFormat.Version = (UCHAR) pIrlapCb->LocalDevice.IRLAP_Version;
if (!(pIMsg = AllocTxMsg(pIrlapCb->pIrdaLinkCb)))
return;
pIMsg->IRDA_MSG_pWrite = Format_DscvXID(
pIMsg,
IRLAP_BROADCAST_CONN_ADDR,
IRLAP_RSP, IRLAP_PFBIT_SET,
&XIDFormat,
pIrlapCb->LocalDevice.DscvInfo,
pIrlapCb->LocalDevice.DscvInfoLen);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: DscvXidRsp")));
SendFrame(pIrlapCb, pIMsg);
}
/*****************************************************************************
*
* @func UINT | SendSNRM | formats a SNRM frame and sends it
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
* @parm UCHAR | ConnAddr | Connection address
*
* @comm
* The ConnAddr can be different than that in the control block.
* For reset, its the same, but set to broadcast for initial
* connection.
*/
VOID
SendSNRM(PIRLAP_CB pIrlapCb, BOOLEAN SendQos)
{
IRDA_QOS_PARMS *pQos = NULL;
int ConnAddr = pIrlapCb->ConnAddr;
IRDA_MSG *pIMsg;
if (SendQos)
{
ConnAddr = IRLAP_BROADCAST_CONN_ADDR;
pQos = &pIrlapCb->LocalQos;
}
if (!(pIMsg = AllocTxMsg(pIrlapCb->pIrdaLinkCb)))
return;
pIMsg->IRDA_MSG_pWrite = Format_SNRM(pIMsg, ConnAddr,
IRLAP_CMD,
IRLAP_PFBIT_SET,
pIrlapCb->LocalDevice.DevAddr,
pIrlapCb->RemoteDevice.DevAddr,
pIrlapCb->ConnAddr,
pQos);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: SNRM")));
SendFrame(pIrlapCb, pIMsg);
}
/*****************************************************************************
*
* @func UINT | SendUA | formats a UA frame and sends it
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
* @parm BOOLEAN | SendQos | Send the Qos
*
* @comm
* comments
*/
VOID
SendUA(PIRLAP_CB pIrlapCb, BOOLEAN SendQos)
{
IRDA_QOS_PARMS NegQos;
IRDA_QOS_PARMS *pNegQos = NULL;
UCHAR *pSrcAddr = NULL;
UCHAR *pDestAddr = NULL;
IRDA_MSG *pIMsg;
if (SendQos)
{
// Put all parms (type 0 and 1) in NegQos
RtlCopyMemory(&NegQos, &pIrlapCb->LocalQos, sizeof(IRDA_QOS_PARMS));
// Overwrite type 0 parameters that have already been negotiated
NegQos.bfBaud = pIrlapCb->NegotiatedQos.bfBaud;
NegQos.bfDisconnectTime = pIrlapCb->NegotiatedQos.bfDisconnectTime;
pNegQos = &NegQos;
}
// This will be moved into the "if" above when the spec is clarified
pSrcAddr = pIrlapCb->LocalDevice.DevAddr;
pDestAddr = pIrlapCb->RemoteDevice.DevAddr;
//------------------------------------------------------------------
if (!(pIMsg = AllocTxMsg(pIrlapCb->pIrdaLinkCb)))
return;
pIMsg->IRDA_MSG_pWrite = Format_UA(pIMsg,
pIrlapCb->ConnAddr,
IRLAP_RSP,
IRLAP_PFBIT_SET,
pSrcAddr, pDestAddr, pNegQos);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: UA")));
SendFrame(pIrlapCb, pIMsg);
}
/*****************************************************************************
*
* @func UINT | SendDM | formats a DM frame and sends it
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
*
* @comm
* comments
*/
VOID
SendDM(PIRLAP_CB pIrlapCb)
{
IRDA_MSG *pIMsg;
if (!(pIMsg = AllocTxMsg(pIrlapCb->pIrdaLinkCb)))
return;
pIMsg->IRDA_MSG_pWrite = Format_DM(pIMsg,
pIrlapCb->ConnAddr,
IRLAP_RSP,
IRLAP_PFBIT_SET);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: DM")));
SendFrame(pIrlapCb, pIMsg);
}
/*****************************************************************************
*
* @func UINT | SendRD | formats a RD frame and sends it
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
*
* @comm
* comments
*/
VOID
SendRD(PIRLAP_CB pIrlapCb)
{
IRDA_MSG *pIMsg;
if (!(pIMsg = AllocTxMsg(pIrlapCb->pIrdaLinkCb)))
return;
pIMsg->IRDA_MSG_pWrite = Format_RD(pIMsg,
pIrlapCb->ConnAddr,
IRLAP_RSP,
IRLAP_PFBIT_SET);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: RD")));
SendFrame(pIrlapCb, pIMsg);
}
/*****************************************************************************
*
* @func UINT | SendRR | formats a RR frame and sends it
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
*
* @comm
* comments
*/
VOID
SendRR(PIRLAP_CB pIrlapCb)
{
IRDA_MSG *pIMsg;
ClearRxWindow(pIrlapCb);
pIrlapCb->RxWin.Start = pIrlapCb->Vr; // RxWin.Start = what we've acked
if (!(pIMsg = AllocTxMsg(pIrlapCb->pIrdaLinkCb)))
return;
pIMsg->IRDA_MSG_pWrite = Format_RR(pIMsg, pIrlapCb->ConnAddr,
pIrlapCb->CRBit, IRLAP_PFBIT_SET,
pIrlapCb->Vr);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: RR")));
SendFrame(pIrlapCb, pIMsg);
}
/*****************************************************************************
*
* @func UINT | SendRNR | formats a RNR frame and sends it
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
*
* @comm
* comments
*/
VOID
SendRR_RNR(PIRLAP_CB pIrlapCb)
{
IRDA_MSG *pIMsg;
UCHAR *(*pFormatRR_RNR)();
if (pIrlapCb->LocalBusy)
{
pFormatRR_RNR = Format_RNR;
}
else
{
pFormatRR_RNR = Format_RR;
}
ClearRxWindow(pIrlapCb);
pIrlapCb->RxWin.Start = pIrlapCb->Vr; // RxWin.Start = what we've acked
if (!(pIMsg = AllocTxMsg(pIrlapCb->pIrdaLinkCb)))
return;
pIMsg->IRDA_MSG_pWrite = (*pFormatRR_RNR)(pIMsg, pIrlapCb->ConnAddr,
pIrlapCb->CRBit, IRLAP_PFBIT_SET,
pIrlapCb->Vr);
IRLAP_LOG_ACTION((pIrlapCb, (TEXT("Tx: %s"), pFormatRR_RNR == Format_RNR? TEXT("RNR"):TEXT("RR"))));
SendFrame(pIrlapCb, pIMsg);
}
/*****************************************************************************
*
* @func UINT | SendDISC | formats a DISC frame and sends it
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
*
* @comm
* comments
*/
VOID
SendDISC(PIRLAP_CB pIrlapCb)
{
IRDA_MSG *pIMsg;
if (!(pIMsg = AllocTxMsg(pIrlapCb->pIrdaLinkCb)))
return;
pIMsg->IRDA_MSG_pWrite = Format_DISC(pIMsg, pIrlapCb->ConnAddr,
IRLAP_CMD, IRLAP_PFBIT_SET);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: DISC")));
SendFrame(pIrlapCb, pIMsg);
}
/*****************************************************************************
*
* @func UINT | SendRNRM | formats a RNRM frame and sends it
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
*
* @comm
* comments
*/
VOID
SendRNRM(PIRLAP_CB pIrlapCb)
{
IRDA_MSG *pIMsg;
if (!(pIMsg = AllocTxMsg(pIrlapCb->pIrdaLinkCb)))
return;
pIMsg->IRDA_MSG_pWrite = Format_RNRM(pIMsg, pIrlapCb->ConnAddr,
IRLAP_RSP, IRLAP_PFBIT_SET);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: RNRM")));
SendFrame(pIrlapCb, pIMsg);
}
/*****************************************************************************
*
* @func UINT | SendREJ | formats a REJ frame and sends it
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
*
* @comm
* comments
*/
VOID
SendREJ(PIRLAP_CB pIrlapCb)
{
IRDA_MSG *pIMsg;
ClearRxWindow(pIrlapCb);
pIrlapCb->RxWin.Start = pIrlapCb->Vr; // RxWin.Start = what we've acked
if (!(pIMsg = AllocTxMsg(pIrlapCb->pIrdaLinkCb)))
return;
pIMsg->IRDA_MSG_pWrite = Format_REJ(pIMsg, pIrlapCb->ConnAddr,
pIrlapCb->CRBit, IRLAP_PFBIT_SET,
pIrlapCb->Vr);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: REJ")));
SendFrame(pIrlapCb, pIMsg);
}
/*****************************************************************************
*
* @func UINT | SendSREJ | formats a SREJ frame and sends it
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
* @parm int | Nr | Nr to be placed in SREJ frame
*
* @comm
* comments
*/
VOID
SendSREJ(PIRLAP_CB pIrlapCb, int Nr)
{
IRDA_MSG *pIMsg;
if (!(pIMsg = AllocTxMsg(pIrlapCb->pIrdaLinkCb)))
return;
pIMsg->IRDA_MSG_pWrite = Format_SREJ(pIMsg, pIrlapCb->ConnAddr,
pIrlapCb->CRBit, IRLAP_PFBIT_SET,
Nr);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: SREJ")));
SendFrame(pIrlapCb, pIMsg);
}
/*****************************************************************************
*
* @func UINT | SendFRMR | formats a FRMR frame and sends it
*
* @rdesc SUCCESS, otherwise one of the following errors:
* @flag val | desc
*
* @parm int | Nr | Nr to be placed in SREJ frame
*
* @comm
* comments
*/
VOID
SendFRMR(PIRLAP_CB pIrlapCb, IRLAP_FRMR_FORMAT *pFRMRFormat)
{
IRDA_MSG *pIMsg;
if (!(pIMsg = AllocTxMsg(pIrlapCb->pIrdaLinkCb)))
return;
pIMsg->IRDA_MSG_pWrite = Format_FRMR(pIMsg, pIrlapCb->ConnAddr,
pIrlapCb->CRBit, IRLAP_PFBIT_SET,
pFRMRFormat);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: FRMR")));
SendFrame(pIrlapCb, pIMsg);
}
/*****************************************************************************
*
* @func UINT | SendIFrame | Builds and sends an I frame to MAC
*
* @rdesc SUCCESS otherwise one of the following errors:
* @flag val | desc
*
* @parm | |
*
* @comm
* comments
*/
VOID
SendIFrame(PIRLAP_CB pIrlapCb, PIRDA_MSG pMsg, int Ns, int PFBit)
{
if (NULL == pMsg)
{
ASSERT(0);
return; // LOG AN ERROR !!!
}
ClearRxWindow(pIrlapCb);
pIrlapCb->RxWin.Start = pIrlapCb->Vr; // RxWin.Start = what we've acked
(void) Format_I(pMsg, pIrlapCb->ConnAddr, pIrlapCb->CRBit, PFBit,
pIrlapCb->Vr, Ns);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: IFrame pMsg:%X"), pMsg));
InterlockedIncrement(&pMsg->IRDA_MSG_RefCnt);
#if DBG_CHECKSUM
// print first and last 4 bytes of frame to help isolate
// data corruption problem. Should be used with sledge
if ((pMsg->IRDA_MSG_pWrite - pMsg->IRDA_MSG_pRead) > 3)
DEBUGMSG(1, ("T(%X): %c%c%c%c, %c%c%c%c\n",
pMsg->IRDA_MSG_pRead,
*(pMsg->IRDA_MSG_pRead),
*(pMsg->IRDA_MSG_pRead+1),
*(pMsg->IRDA_MSG_pRead+2),
*(pMsg->IRDA_MSG_pRead+3),
*(pMsg->IRDA_MSG_pWrite-4),
*(pMsg->IRDA_MSG_pWrite-3),
*(pMsg->IRDA_MSG_pWrite-2),
*(pMsg->IRDA_MSG_pWrite-1)));
#endif
SendFrame(pIrlapCb, pMsg);
pMsg->IRDA_MSG_pHdrRead +=2; // uglyness.. chop header in case frame
// requires retransmission
return;
}
/*****************************************************************************
*
* @func UINT | SendUIFrame | Builds and sends an UI frame to MAC
*
* @rdesc SUCCESS otherwise one of the following errors:
* @flag val | desc
*
* @parm | |
*
* @comm
* comments
*/
VOID
SendUIFrame(PIRLAP_CB pIrlapCb, PIRDA_MSG pMsg)
{
if (NULL == pMsg)
{
ASSERT(0);
return;
}
(void) Format_UI(pMsg, pIrlapCb->ConnAddr,
pIrlapCb->CRBit,IRLAP_PFBIT_SET);
InterlockedIncrement(&pMsg->IRDA_MSG_RefCnt);
IRLAP_LOG_ACTION((pIrlapCb, TEXT("Tx: UIFrame")));
SendFrame(pIrlapCb, pMsg);
}
/*****************************************************************************
*
* @func UINT | _IRLMP_Up | Adds logging to the IRLMP_Up
*
* @rdesc returns of IRLMP_Up
*
* @parm PIRDA_MSG | pMsg | pointer to IRDA message
*
* @comm
* comments
*/
/*
UINT
_IRLMP_Up(PIRDA_MSG pMsg)
{
IRLAP_LOG_ACTION((TEXT("%s%s"), IRDA_PrimStr[pMsg->Prim],
pMsg->Prim == IRLAP_DISCOVERY_CONF ?
IRDA_StatStr[pMsg->IRDA_MSG_DscvStatus] :
pMsg->Prim == IRLAP_CONNECT_CONF ?
IRDA_StatStr[pMsg->IRDA_MSG_ConnStatus] :
pMsg->Prim == IRLAP_DISCONNECT_IND ?
IRDA_StatStr[pMsg->IRDA_MSG_DiscStatus] :
pMsg->Prim == IRLAP_DATA_CONF || pMsg->Prim == IRLAP_UDATA_CONF ?
IRDA_StatStr[pMsg->IRDA_MSG_DataStatus] : TEXT("")));
return (IRLMP_Up(pMsg));
}
*/
UCHAR *
BuildTuple(UCHAR *pBuf, UCHAR Pi, UINT BitField)
{
*pBuf++ = Pi;
if (BitField > 0xFF)
{
*pBuf++ = 2; // Pl
*pBuf++ = (UCHAR) (BitField);
*pBuf++ = (UCHAR) (BitField >> 8);
}
else
{
*pBuf++ = 1; // Pl
*pBuf++ = (UCHAR) (BitField);
}
return pBuf;
}
UCHAR *
BuildNegParms(UCHAR *pBuf, IRDA_QOS_PARMS *pQos)
{
pBuf = BuildTuple(pBuf, QOS_PI_BAUD, pQos->bfBaud);
pBuf = BuildTuple(pBuf, QOS_PI_MAX_TAT, pQos->bfMaxTurnTime);
pBuf = BuildTuple(pBuf, QOS_PI_DATA_SZ, pQos->bfDataSize);
pBuf = BuildTuple(pBuf, QOS_PI_WIN_SZ, pQos->bfWindowSize);
pBuf = BuildTuple(pBuf, QOS_PI_BOFS, pQos->bfBofs);
pBuf = BuildTuple(pBuf, QOS_PI_MIN_TAT, pQos->bfMinTurnTime);
pBuf = BuildTuple(pBuf, QOS_PI_DISC_THRESH, pQos->bfDisconnectTime);
return pBuf;
}
void
StoreULAddr(UCHAR Addr[], ULONG ULAddr)
{
Addr[0] = (UCHAR) ( 0xFF & ULAddr);
Addr[1] = (UCHAR) ((0xFF00 & ULAddr) >> 8);
Addr[2] = (UCHAR) ((0xFF0000 & ULAddr) >> 16);
Addr[3] = (UCHAR) ((0xFF000000 & ULAddr) >> 24);
}
UCHAR *
_PutAddr(UCHAR *pBuf, UCHAR Addr[])
{
*pBuf++ = Addr[0];
*pBuf++ = Addr[1];
*pBuf++ = Addr[2];
*pBuf++ = Addr[3];
return (pBuf);
}
void
BuildUHdr(IRDA_MSG *pMsg, int FrameType, int Addr, int CRBit, int PFBit)
{
if (pMsg->IRDA_MSG_pHdrRead != NULL)
{
pMsg->IRDA_MSG_pHdrRead -= 2;
ASSERT(pMsg->IRDA_MSG_pHdrRead >= pMsg->IRDA_MSG_Header);
*(pMsg->IRDA_MSG_pHdrRead) = (UCHAR) _MAKE_ADDR(Addr, CRBit);
*(pMsg->IRDA_MSG_pHdrRead+1) = (UCHAR) _MAKE_UCNTL(FrameType, PFBit);
}
else
{
pMsg->IRDA_MSG_pRead -= 2;
*(pMsg->IRDA_MSG_pRead) = (UCHAR) _MAKE_ADDR(Addr, CRBit);
*(pMsg->IRDA_MSG_pRead+1) = (UCHAR) _MAKE_UCNTL(FrameType, PFBit);
}
return;
}
void
BuildSHdr(IRDA_MSG *pMsg, int FrameType, int Addr, int CRBit, int PFBit,
int Nr)
{
if (pMsg->IRDA_MSG_pHdrRead != NULL)
{
pMsg->IRDA_MSG_pHdrRead -= 2;
ASSERT(pMsg->IRDA_MSG_pHdrRead >= pMsg->IRDA_MSG_Header);
*(pMsg->IRDA_MSG_pHdrRead) = (UCHAR) _MAKE_ADDR(Addr, CRBit);
*(pMsg->IRDA_MSG_pHdrRead+1) = (UCHAR) _MAKE_SCNTL(FrameType,
PFBit, Nr);
}
else
{
pMsg->IRDA_MSG_pRead -= 2;
*(pMsg->IRDA_MSG_pRead) = (UCHAR) _MAKE_ADDR(Addr, CRBit);
*(pMsg->IRDA_MSG_pRead+1) = (UCHAR) _MAKE_SCNTL(FrameType, PFBit, Nr);
}
return;
}
UCHAR *
Format_SNRM(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit, UCHAR SAddr[],
UCHAR DAddr[], int CAddr, IRDA_QOS_PARMS *pQos)
{
BuildUHdr(pMsg, IRLAP_SNRM, Addr, CRBit, PFBit);
if (pQos != NULL)
{
pMsg->IRDA_MSG_pWrite = _PutAddr(pMsg->IRDA_MSG_pWrite, SAddr);
pMsg->IRDA_MSG_pWrite = _PutAddr(pMsg->IRDA_MSG_pWrite, DAddr);
*pMsg->IRDA_MSG_pWrite++ = CAddr << 1; // Thats what the f'n spec says
pMsg->IRDA_MSG_pWrite = BuildNegParms(pMsg->IRDA_MSG_pWrite, pQos);
}
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_DISC(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit)
{
BuildUHdr(pMsg, IRLAP_DISC, Addr, CRBit, PFBit);
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_UI(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit)
{
BuildUHdr(pMsg, IRLAP_UI, Addr, CRBit, PFBit);
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_DscvXID(IRDA_MSG *pMsg, int ConnAddr, int CRBit, int PFBit,
IRLAP_XID_DSCV_FORMAT *pXIDFormat,
CHAR DscvInfo[], int DscvInfoLen)
{
if (pMsg->IRDA_MSG_pHdrRead != NULL)
{
pMsg->IRDA_MSG_pHdrRead -= 2;
ASSERT(pMsg->IRDA_MSG_pHdrRead >= pMsg->IRDA_MSG_Header);
*(pMsg->IRDA_MSG_pHdrRead) = (UCHAR) _MAKE_ADDR(ConnAddr, CRBit);
if (CRBit)
*(pMsg->IRDA_MSG_pHdrRead+1)=
(UCHAR) _MAKE_UCNTL(IRLAP_XID_CMD, PFBit);
else
*(pMsg->IRDA_MSG_pHdrRead+1)=
(UCHAR) _MAKE_UCNTL(IRLAP_XID_RSP, PFBit);
}
else
{
pMsg->IRDA_MSG_pRead -= 2;
*(pMsg->IRDA_MSG_pRead) = (UCHAR) _MAKE_ADDR(ConnAddr, CRBit);
if (CRBit)
*(pMsg->IRDA_MSG_pRead+1)=
(UCHAR) _MAKE_UCNTL(IRLAP_XID_CMD, PFBit);
else
*(pMsg->IRDA_MSG_pRead+1)=
(UCHAR) _MAKE_UCNTL(IRLAP_XID_RSP, PFBit);
}
*pMsg->IRDA_MSG_pWrite++ = IRLAP_XID_DSCV_FORMAT_ID;
RtlCopyMemory(pMsg->IRDA_MSG_pWrite, (CHAR *) pXIDFormat,
sizeof(IRLAP_XID_DSCV_FORMAT) - 1); // Subtract for FirstDscvUCHAR
// in structure
pMsg->IRDA_MSG_pWrite += sizeof(IRLAP_XID_DSCV_FORMAT) - 1;
if (DscvInfo != NULL)
{
RtlCopyMemory(pMsg->IRDA_MSG_pWrite, DscvInfo, DscvInfoLen);
pMsg->IRDA_MSG_pWrite += DscvInfoLen;
}
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_TEST(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit,
UCHAR SAddr[], UCHAR DAddr[])
{
BuildUHdr(pMsg, IRLAP_TEST, Addr, CRBit, PFBit);
pMsg->IRDA_MSG_pWrite = _PutAddr(pMsg->IRDA_MSG_pWrite, SAddr);
pMsg->IRDA_MSG_pWrite = _PutAddr(pMsg->IRDA_MSG_pWrite, DAddr);
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_RNRM(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit)
{
BuildUHdr(pMsg, IRLAP_RNRM, Addr, CRBit, PFBit);
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_UA(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit, UCHAR SAddr[],
UCHAR DAddr[], IRDA_QOS_PARMS *pQos)
{
BuildUHdr(pMsg, IRLAP_UA, Addr, CRBit, PFBit);
if (SAddr != NULL)
{
pMsg->IRDA_MSG_pWrite = _PutAddr(pMsg->IRDA_MSG_pWrite, SAddr);
}
if (DAddr != NULL)
{
pMsg->IRDA_MSG_pWrite = _PutAddr(pMsg->IRDA_MSG_pWrite, DAddr);
}
if (pQos != NULL)
pMsg->IRDA_MSG_pWrite = BuildNegParms(pMsg->IRDA_MSG_pWrite, pQos);
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_FRMR(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit,
IRLAP_FRMR_FORMAT *pFormat)
{
BuildUHdr(pMsg, IRLAP_FRMR, Addr, CRBit, PFBit);
RtlCopyMemory(pMsg->IRDA_MSG_pWrite, (CHAR *)pFormat,
sizeof(IRLAP_FRMR_FORMAT));
pMsg->IRDA_MSG_pWrite += sizeof(IRLAP_FRMR_FORMAT);
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_DM(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit)
{
BuildUHdr(pMsg, IRLAP_DM, Addr, CRBit, PFBit);
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_RD(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit)
{
BuildUHdr(pMsg, IRLAP_RD, Addr, CRBit, PFBit);
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_RR(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit, int Nr)
{
BuildSHdr(pMsg, IRLAP_RR, Addr, CRBit, PFBit, Nr);
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_RNR(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit, int Nr)
{
BuildSHdr(pMsg, IRLAP_RNR, Addr, CRBit, PFBit, Nr);
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_REJ(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit, int Nr)
{
BuildSHdr(pMsg, IRLAP_REJ, Addr, CRBit, PFBit, Nr);
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_SREJ(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit, int Nr)
{
BuildSHdr(pMsg, IRLAP_SREJ, Addr, CRBit, PFBit, Nr);
return (pMsg->IRDA_MSG_pWrite);
}
UCHAR *
Format_I(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit, int Nr, int Ns)
{
if (pMsg->IRDA_MSG_pHdrRead != NULL)
{
pMsg->IRDA_MSG_pHdrRead -= 2;
ASSERT(pMsg->IRDA_MSG_pHdrRead >= pMsg->IRDA_MSG_Header);
*(pMsg->IRDA_MSG_pHdrRead) = (UCHAR) _MAKE_ADDR(Addr, CRBit);
*(pMsg->IRDA_MSG_pHdrRead+1) = (UCHAR) (((Ns & 7) << 1) +
((PFBit & 1)<< 4) + (Nr <<5));
}
else
{
pMsg->IRDA_MSG_pRead -= 2;
*(pMsg->IRDA_MSG_pRead) = (UCHAR) _MAKE_ADDR(Addr, CRBit);
*(pMsg->IRDA_MSG_pRead+1) = (UCHAR) (((Ns & 7) << 1) +
((PFBit & 1)<< 4) + (Nr <<5));
}
return (pMsg->IRDA_MSG_pWrite);
}
Reference in a new issue Copy permalink