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324 lines
12 KiB
324 lines
12 KiB
/*****************************************************************************
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*
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* Copyright (c) 1995 Microsoft Corporation
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*
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* File: irlap.h
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*
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* Description: IRLAP Protocol and control block definitions
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*
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* Author: mbert
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*
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* Date: 4/15/95
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*
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*/
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#define UNICODE_CHAR_SET 0xFF
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#define IRLAP_MEDIA_SENSE_TIME 500
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#define IRLAP_SLOT_TIMEOUT 50
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#define IRLAP_DSCV_SENSE_TIME 110
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#define IRLAP_FAST_POLL_TIME 10
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#define IRLAP_FAST_POLL_COUNT 10
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// XID Format
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#define IRLAP_XID_DSCV_FORMAT_ID 0x01
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#define IRLAP_XID_NEGPARMS_FORMAT_ID 0x02
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typedef struct
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{
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UCHAR SrcAddr[IRDA_DEV_ADDR_LEN];
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UCHAR DestAddr[IRDA_DEV_ADDR_LEN];
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UCHAR NoOfSlots:2;
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UCHAR GenNewAddr:1;
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UCHAR Reserved:5;
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UCHAR SlotNo;
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UCHAR Version;
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UCHAR FirstDscvInfoByte;
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} IRLAP_XID_DSCV_FORMAT;
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// Frame Reject Format
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typedef struct
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{
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UCHAR CntlField;
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UCHAR Fill1:1;
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UCHAR Vs:3;
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UCHAR CRBit:1;
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UCHAR Vr:3;
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UCHAR W:1;
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UCHAR X:1;
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UCHAR Y:1;
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UCHAR Z:1;
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UCHAR Fill2:4;
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} IRLAP_FRMR_FORMAT;
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// SNRM Frame Format
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typedef struct
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{
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UCHAR SrcAddr[IRDA_DEV_ADDR_LEN];
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UCHAR DestAddr[IRDA_DEV_ADDR_LEN];
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UCHAR ConnAddr; // actually shifted for CRBit !!
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UCHAR FirstQosByte;
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} IRLAP_SNRM_FORMAT;
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// UA Frame Format
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typedef struct
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{
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UCHAR SrcAddr[IRDA_DEV_ADDR_LEN];
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UCHAR DestAddr[IRDA_DEV_ADDR_LEN];
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UCHAR FirstQosByte;
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} IRLAP_UA_FORMAT;
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#define IRLAP_MAX_TX_MSG_LIST_LEN 8
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#define IRLAP_MAX_DATA_SIZE 4096
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#define IRLAP_MAX_SLOTS 16
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#define IRLAP_CONTENTION_BAUD 9600
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#define IRLAP_CONTENTION_DATA_SIZE 64
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#define IRLAP_CONTENTION_MAX_TAT 500
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#define IRLAP_CONTENTION_BOFS 10
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#define IRLAP_CONTENTION_WIN_SIZE 1
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// Default Qos if not found in registry
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#define IRLAP_DEFAULT_DATASIZE (DATA_SIZE_64 | DATA_SIZE_128 | \
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DATA_SIZE_256 | DATA_SIZE_512 | \
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DATA_SIZE_1024| DATA_SIZE_2048)
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#define IRLAP_DEFAULT_WINDOWSIZE (FRAMES_1 | FRAMES_2 | FRAMES_3 | \
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FRAMES_4 | FRAMES_5 | FRAMES_6 | \
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FRAMES_7)
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#define IRLAP_DEFAULT_MAXTAT (MAX_TAT_500)
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#define IRLAP_DEFAULT_SLOTS 6
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#define IRLAP_DEFAULT_HINTCHARSET 0x8425ff // computer, IrCOMM, Obex, and telephony
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#define IRLAP_DEFAULT_DISCONNECTTIME DISC_TIME_12 | DISC_TIME_8 | DISC_TIME_3
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// Macros for extracting various fields
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#define IRLAP_GET_ADDR(addr) (addr >> 1)
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#define IRLAP_GET_CRBIT(addr) (addr & 1)
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#define IRLAP_GET_PFBIT(cntl) ((cntl >>4) & 1)
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#define IRLAP_GET_UCNTL(cntl) (cntl & 0xEF)
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#define IRLAP_GET_SCNTL(cntl) (cntl & 0x0F)
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#define IRLAP_FRAME_TYPE(cntl) (cntl & 0x01 ? (cntl & 3) : 0)
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#define IRLAP_GET_NR(cntl) ((cntl & 0xE0) >> 5)
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#define IRLAP_GET_NS(cntl) ((cntl & 0xE) >> 1)
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// IRLAP constants
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#define IRLAP_BROADCAST_CONN_ADDR 0x7F
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#define IRLAP_END_DSCV_SLOT_NO 0xFF
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#define IRLAP_CMD 1
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#define IRLAP_RSP 0
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#define IRLAP_PFBIT_SET 1
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#define IRLAP_PFBIT_CLEAR 0
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#define IRLAP_GEN_NEW_ADDR 1
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#define IRLAP_NO_NEW_ADDR 0
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// Macro for creating Number of Slots of Discovery Flags Field of XID Format
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// if S(Slots) <= 1 return 0, <= 6 return 1, <= 8 return 2, else return 3
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#define IRLAP_SLOT_FLAG(S) (S <= 1 ? 0 : (S <= 6 ? 1 : (S <= 8 ? 2 : 3)))
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int _inline IRLAP_RAND(int Min, int Max)
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{
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LARGE_INTEGER li;
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KeQueryTickCount(&li);
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return ((li.LowPart % (Max+1-Min)) + Min);
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}
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// Backoff time is a random time between 0.5 and 1.5 times the time to
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// send a SNRM. _SNRM_TIME() is actually half (1000ms/2) time to send
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// SNRM_LEN of characters at 9600 (9600/10 bits per char).
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#define _SNRM_LEN 32
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#define _SNRM_TIME() (_SNRM_LEN*500/960)
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#define IRLAP_BACKOFF_TIME() IRLAP_RAND(_SNRM_TIME(), 3*_SNRM_TIME())
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#define QOS_PI_BAUD 0x01
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#define QOS_PI_MAX_TAT 0x82
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#define QOS_PI_DATA_SZ 0x83
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#define QOS_PI_WIN_SZ 0x84
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#define QOS_PI_BOFS 0x85
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#define QOS_PI_MIN_TAT 0x86
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#define QOS_PI_DISC_THRESH 0x08
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#define IRLAP_I_FRAME 0x00
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#define IRLAP_S_FRAME 0x01
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#define IRLAP_U_FRAME 0x03
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// Unnumbered Frame types with P/F bit set to 0
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#define IRLAP_UI 0x03
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#define IRLAP_XID_CMD 0x2f
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#define IRLAP_TEST 0xe3
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#define IRLAP_SNRM 0x83
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#define IRLAP_RNRM 0x83
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#define IRLAP_DISC 0x43
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#define IRLAP_RD 0x43
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#define IRLAP_UA 0x63
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#define IRLAP_FRMR 0x87
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#define IRLAP_DM 0x0f
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#define IRLAP_XID_RSP 0xaf
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// Supervisory Frames
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#define IRLAP_RR 0x01
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#define IRLAP_RNR 0x05
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#define IRLAP_REJ 0x09
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#define IRLAP_SREJ 0x0d
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#define _MAKE_ADDR(Addr, CRBit) ((Addr << 1) + (CRBit & 1))
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#define _MAKE_UCNTL(Cntl, PFBit) (Cntl + ((PFBit & 1)<< 4))
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#define _MAKE_SCNTL(Cntl, PFBit, Nr) (Cntl + ((PFBit & 1)<< 4) + (Nr <<5))
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#define IRLAP_CB_SIG 0x7f2a364bUL
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// IRLAP Control Block
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typedef struct
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{
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IRDA_MSG *pMsg[IRLAP_MOD];
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UINT Start;
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UINT End;
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#ifdef TEMPERAMENTAL_SERIAL_DRIVER
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int FCS[IRLAP_MOD];
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#endif
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} IRLAP_WINDOW;
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typedef enum
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{
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PRIMARY,
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SECONDARY
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} IRLAP_STN_TYPE;
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typedef enum // KEEP IN SYNC with IRLAP_StateStr in irlaplog.c
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{
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NDM, // Normal Disconnect Mode
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DSCV_MEDIA_SENSE, // Discovery Media Sense (Before Discovery)
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DSCV_QUERY, // Discovery Query (Discovery initiated)
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DSCV_REPLY, // Discovery Reply (Received DSCV XID cmd from Remote)
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CONN_MEDIA_SENSE, // Connect Media Sense (Before connection estab)
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SNRM_SENT, // SNRM sent - waiting for UA or DM from Remote
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BACKOFF_WAIT, // Waiting random backoff before sending next SNRM
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SNRM_RECEIVED, // SNRM rcvd - waiting for response from upper layer
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P_XMIT, // Primary transmit
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P_RECV, // Primary receive
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P_DISCONNECT_PEND, // Upper layer request disconnect while in P_RECV
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P_CLOSE, // Sent DISC, waiting for response
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S_NRM, // Secondary Normal Response Mode XMIT/RECV
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S_DISCONNECT_PEND, // Upper layer request disconnect while in S_NRM
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S_ERROR, // Waiting for PF bit then send a FRMR
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S_CLOSE, // Requested disconnect (RD) waiting for DISC command
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} IRLAP_STATE;
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typedef struct IrlapControlBlock
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{
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IRLAP_STATE State;
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IRDA_DEVICE LocalDevice;
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IRDA_DEVICE RemoteDevice;
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PIRDA_LINK_CB pIrdaLinkCb;
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IRDA_QOS_PARMS LocalQos; // QOS from LMP
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IRDA_QOS_PARMS RemoteQos; // QOS of remote taken from SNRM/UA
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IRDA_QOS_PARMS NegotiatedQos; // Union of remote and local QOS
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int Baud; // Type 0 negotiation parm
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int DisconnectTime;// Type 0 negotiation parm
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int ThresholdTime; // Type 0 negotiotion parm
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int LocalMaxTAT; // Type 1 negotiation parm
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int LocalDataSize; // Type 1 negotiation parm
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int LocalWinSize; // Type 1 negotiation parm
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int LocalNumBOFS; // Type 1 negotiation parm
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int RemoteMaxTAT; // Type 1 negotiation parm
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int RemoteDataSize;// Type 1 negotiation parm
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int RemoteWinSize; // Type 1 negotiation parm
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int RemoteNumBOFS; // Type 1 negotiation parm
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int RemoteMinTAT; // Type 1 negotiation parm
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IRLAP_STN_TYPE StationType; // PRIMARY or SECONDARY
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int ConnAddr; // Connection Address
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int SNRMConnAddr; // Connection address contained in SNRM
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// save it until CONNECT_RESP is received
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int CRBit; // Primary = 1, Secondary = 0
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int RespSlot; // Secondary. Slot to respond in
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int SlotCnt; // Primary. Current slot number
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int MaxSlot; // Maximum slots to send in Dscv
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int RemoteMaxSlot; // Number of Dscv's remote will send
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LIST_ENTRY DevList; // Discovered device list
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UINT Vs; // send state variable
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UINT Vr; // receive state variable
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IRLAP_WINDOW RxWin; // Holds out of sequence rxd frames
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IRLAP_WINDOW TxWin; // Holds unacked txd frames
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LIST_ENTRY TxMsgList; // DATA_REQ, UDATA_REQ queued here
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LIST_ENTRY ExTxMsgList; // Expidited DATA_REQ, UDATA_REQ queued here
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int RetryCnt; // Count of number of retrans of DSCV,SNRM
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int N1; // const# retries before sending status up
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int N2; // const# retries before disconnecting
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int N3; // const# of connection retries
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int FastPollCount;
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IRDA_TIMER SlotTimer;
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IRDA_TIMER QueryTimer;
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IRDA_TIMER PollTimer;
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IRDA_TIMER FinalTimer;
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IRDA_TIMER WDogTimer;
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IRDA_TIMER BackoffTimer;
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IRDA_TIMER StatusTimer;
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int WDogExpCnt; // Count of WDog expirations
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int StatusSent; // Status ind has been sent
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int StatusFlags;
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int FTimerExpCnt;
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int RetranCnt;
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IRLAP_FRMR_FORMAT Frmr;
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BOOLEAN GenNewAddr; // Flag indicating whether to set new addr
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BOOLEAN DscvRespSent; // Secondary. Sent XID Discv response
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BOOLEAN RemoteBusy; // Remote has sent a RNR
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BOOLEAN LocalBusy; // Local busy condition, we sent RNR
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BOOLEAN ClrLocalBusy; // Send RR
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BOOLEAN LocalDiscReq; // why 2ndary got DISC
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BOOLEAN ConnAfterClose;// Conn req while in p_close
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BOOLEAN DscvAfterClose;// Dscv_req while in p_close
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BOOLEAN NoResponse; // Final/WD timer exp'd, used with RetryCnt
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BOOLEAN MonitorLink;
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#if 1 //DBG
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int DelayedConf;
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int ActCnt[16];
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int NestedEvent;
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#endif
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} IRLAP_CB, *PIRLAP_CB;
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#define LINE_CAPACITY(icb) (icb->RemoteWinSize * \
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(icb->RemoteDataSize + \
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6+icb->RemoteNumBOFS))
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UCHAR *BuildNegParms(UCHAR *pBuf, IRDA_QOS_PARMS *pQos);
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void StoreULAddr(UCHAR Addr[], ULONG ULAddr);
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UCHAR *Format_SNRM(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit,
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UCHAR SAddr[], UCHAR DAddr[], int CAddr,
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IRDA_QOS_PARMS *pQos);
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UCHAR *Format_DISC(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit);
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UCHAR *Format_UI(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit);
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UCHAR *Format_DscvXID(IRDA_MSG *pMsg, int ConnAddr, int CRBit, int PFBit,
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IRLAP_XID_DSCV_FORMAT *pXidFormat, CHAR DscvInfo[],
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int Len);
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UCHAR *Format_TEST(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit,
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UCHAR SAddr[], UCHAR DAddr[]);
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UCHAR *Format_RNRM(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit);
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UCHAR *Format_UA(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit,
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UCHAR SAddr[], UCHAR DAddr[], IRDA_QOS_PARMS *pQos);
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UCHAR *Format_FRMR(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit,
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IRLAP_FRMR_FORMAT *pFormat);
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UCHAR *Format_DM(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit);
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UCHAR *Format_RD(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit);
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UCHAR *Format_RR(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit, int Nr);
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UCHAR *Format_RNR(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit, int Nr);
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UCHAR *Format_REJ(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit, int Nr);
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UCHAR *Format_SREJ(IRDA_MSG *pMsg, int Addr, int CRBit, int PFBit, int Nr);
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UCHAR * Format_I(IRDA_MSG *pMsg, int Addr, int CRBit,
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int PFBit, int Nr, int Ns);
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int GetMyDevAddr(BOOLEAN New);
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