[apple/xnu.git] / bsd / netat / adsp_internal.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
#ifndef _NETAT_ADSP_INTERNAL_H_
#define _NETAT_ADSP_INTERNAL_H_

#ifdef KERNEL

/* from h/adsp_portab.h */

/* TypeDefs for the basic data bytes. */

typedef unsigned char		byte, *bytePtr;

#ifdef NOT_USED
typedef char			int8;
typedef short 			int16;
typedef int 			int32;
#endif

typedef unsigned char		boolean;

typedef unsigned short		word;

typedef unsigned int 		dword;

#define BYTE_AT(x)		(*((byte PTR)(x)))
#define WORD_AT(x)		(*((word PTR)(x)))
#define DWORD_AT(x)		(*((dword PTR)(x)))

#define high(x)			((byte)((x) >> 8))
#define low(x)			((byte)(x))
#define hlword(h, l)		(((byte)(l)) | (((byte)(h)) << 8))

#define offsetof(typ,id)	(size_t)&(((typ*)0)->id)

/* 
 * On a Mac, there is no need to byte-swap data on the network, so 
 * these macros do nothing 
 */

#define netw(x)		x
#define netdw(x)	x

typedef struct
{
  at_net           network;       /* network number */
  byte           nodeid;        /* node number    */
  byte           socket;        /* socket number  */
} AddrBlk, *AddrBlkPtr;

typedef union
{
   at_inet_t     a;
} AddrUnion, *AddrUnionPtr;

/* End Portab.h */

/* from h/adsp_internal.h */

#undef T_IDLE

/*
* Default Behavior for ADSP
*/
#define	ocIntervalDefault	6
#define ocMaximumDefault	10
#define probeIntervalDefault	180

/*
* MACROS for comparing 32-bit sequence numbers
*/
#define GT(x,y)  (((long)(x-y)) > (long) 0)
#define LT(x,y)  (((long)(x-y)) < (long) 0)
#define GTE(x,y) (((long)(x-y)) >= (long) 0)
#define LTE(x,y) (((long)(x-y)) <= (long) 0)
#define BETWEEN(x,y,z) (LTE(x,y) && LTE(y,z))

/*
 * Use the kernel tick counter for SysTicks.
 */

#define SysTicks()	lbolt

/*
 * Timer element used for handling timings
 */
typedef struct timerelem {
    struct timerelem *link;
    short timer;
    char type;
    unsigned onQ:1;		/* Bit-fields are faster than booleans */
} TimerElem;

typedef TimerElem *TimerElemPtr;

/*
 * For AppleTalk Phase 2 event queue
 */
typedef struct {
    Ptr	qLink;
    unsigned short qType;
    ProcPtr callAddr;
} LAPEventElem;

typedef LAPEventElem *LAPEventElemPtr;

/* 
 * The Event types we're passed when an AppleTalk transition occurs
 */
#define AOpenTransition		0
#define	ACloseTransition	2
#define ANetworkTransition	5

/*
 * The element we're passed when a NetworkTransaction event occurs
 */
typedef struct TNetworkTransition {
    Ptr	private;		/* pointer used internally by NetShare */
    ProcPtr netValidProc;	/* pointer to the network valid procedure */
} TNetworkTransition, *TPNetworkTransition;

typedef long (*NetworkTransitionProcPtr)();
				/* (TPNetworkTransition nettrans, 
				   unsigned long thenet); */
/*
 * This is the connection control block
 */
typedef struct ccb {
    /*---These fields may not change order or size-----------*/

    struct ccb *ccbLink;	/* link to next ccb */
    unsigned short state;	/* state of the connection end */
    unsigned char userFlags;	/* flags for unsolicited connection events */
    unsigned char localSocket;	/* socket number of this connection end */
    AddrUnion remoteAddress;	/* internet address of remote end */
    unsigned short attnCode;	/* attention code received */
    unsigned short attnSize;	/* size of received attention data */
    unsigned char *attnPtr;	/* ptr to received attention data */
    unsigned short recvQPending; /* # bytes in receive queue %%% */
    /*------------------------------------------------------ */
	
    struct adspcmd *opb;	/* Outstanding open/close/remove/listens */
    struct adspcmd *spb;	/* Outstanding Sends */
    struct adspcmd *sapb;	/* Outstanding Send Attentions */
    struct adspcmd *frpb;	/* Outstanding Forward Resets */
    struct adspcmd *rpb;	/* Outstanding Read Requests */
	
    struct ccb *otccbLink;	/* link to next ccb */
    int pid;		/* Process ID for CCB owner */

    unsigned short remCID;	/* Remote Connection ID */
    unsigned short locCID;	/* Local Connection ID */
    int sendSeq;		/* Seq number of next char to send to remote */
    int firstRtmtSeq;		/* oldest seq # in local send queue */
    int sendWdwSeq;		/* Seq # of last char remote has bfr for */
    int recvSeq;		/* Seq of # of next char expected from rmte */
    int recvWdw;		/* # of bytes local end has buffer space for */
    int attnSendSeq;		/* Seq # of next attn pkt to send to remote */
    int attnRecvSeq;		/* Seq # of next packet local end expects */
    int maxSendSeq;		/* Highest seq # we ever sent on connection */

    /* These must be in the first 255 bytes of the CCB */
    TimerElem ProbeTimer;	/* Timer element for probes (and open) */
    TimerElem FlushTimer;	/* Timer element for flushing data */
    TimerElem RetryTimer;	/* Timer element for retransmissions */
    TimerElem AttnTimer;	/* Timer element for attention packets */
    TimerElem ResetTimer;	/* Timer element for forward resets */
	
    short openInterval;		/* Interval between open connection packets */
    short probeInterval;	/* Interval between probes */
    short sendInterval;		/* Interval before automatic flush */
    short rtmtInterval;		/* Rexmit interval (dynamically determined) */

    short sendCtl;		/* Send control message bits */
    short sendBlocking;		/* Flush unsent data if > than sendBlocking */
    short openRetrys;		/* # of retrys for Connect & Accept */
    short rbuflen;		/* Total size of receive buffer */
    short sbuflen;		/* Total size of receive buffer */
    char pad;
    char lockFlag;
    char badSeqMax;		/* retransmit advice send threshold */
    char badSeqCnt;		/* # of of out-of-order packets received */
    char useCheckSum;		/* true to use DDP checksums */
    char openState;		/* Used for opening a connection (see below) */

    gbuf_t *rbuf_mb;		/* message block for the recv buffer */
    gbuf_t *crbuf_mb;
    gbuf_t *sbuf_mb;		/* message block for the send buffer */
    gbuf_t *csbuf_mb;
    gbuf_t *attn_mb;		/* message block for the attention buffer */
    gbuf_t *deferred_mb;	/* message block deferred for later processing */
	
#ifdef NOT_USED
    char ioDone;		/* flag for when the adsp header is busy */
#endif
    char probeCntr;		/* # of probes we can miss (counts down) */
    char pktSendMax;		/* Max # of packets to send without an ack */
    char pktSendCnt;		/* # of packets sent so far */
	
    int sendStamp;		/* Time of last ackRequest */
    int timerSeq;		/* Seq # of char corresponding to above time stamp */
    short roundTrip;		/* Average Round-Trip time (in 6ths of a second) */
    short deviation;		/* deviation from roundTrip time */
    
    unsigned sData:1;		/* There's data in the send queue */
    unsigned waitingAck:1;	/* We're waiting for an ack packet */
    unsigned rData:1;		/* There's data in the receive queue */
    unsigned resentData:1;	/* True when we resend data due to timeout */
    unsigned sendDataAck:1;	/* True if he requested an ack */
    unsigned sendAttnAck:1;	/* Must send attn acknowlege */
    unsigned sendAttnData:1;	/* Must send attn data */
    unsigned callSend:1;	/* Must call CheckSend() */
    unsigned rbufFull:1;	/* We've closed our receive window. */
    unsigned noXmitFlow:1;	/* True stops incrementing # of xmit 
				 * packets to send in a row after receiving 
				 * an ack packet. */
    unsigned secureCCB:1;	/* True if this is a secure connection */
    unsigned removing:1;	/* There is a dspRemove pending */
    unsigned writeFlush:1;	/* Flush send queue even if # bytes to 
				 * send is less than send blocking. */
    unsigned delay:1;		/* do not complete commands until user
				 * *** NO LONGER USED IN KERNEL *** */
    ADSP_FRAME f;		/* Used to send every packet */
    ADSP_OPEN_DATA of;		/* Holds the data for the open exchange */
    gref_t *gref;			/* The queue associated with the CCB */
    gbuf_t *sp_mp;
    atlock_t lock;
    atlock_t lockClose;
    atlock_t lockRemove;
} CCB, *CCBPtr;


/*
 * Change order and die !!! --- See the receive open packet code
 */
#define O_STATE_NOTHING		0	/* Not opening */
#define O_STATE_LISTEN 		1	/* Listening for open request */
#define O_STATE_OPENWAIT 	2 	/* Sent Req, waiting for Ack to open 
				  	 * request */
#define O_STATE_ESTABLISHED 	3	/* Got Req, send Req+Ack,waiting Ack */
#define O_STATE_OPEN		4	/* Connection is open */

/*
* These bits are used in the sendCtl field to indicate what needs to be sent
*/
#define B_CTL_PROBE		0x0001
#define B_CTL_OREQ		0x0002
#define B_CTL_OACK		0x0004
#define B_CTL_OREQACK		0x0008
#define B_CTL_ODENY		0x0010
#define B_CTL_CLOSE		0x0020
#define B_CTL_FRESET		0x0040
#define B_CTL_FRESETACK		0x0080
#define	B_CTL_RETRANSMIT	0x0100


#define kProbeTimerType offsetof(CCB, ProbeTimer)
#define kFlushTimerType offsetof(CCB, FlushTimer)
#define kRetryTimerType offsetof(CCB, RetryTimer)
#define kAttnTimerType offsetof(CCB, AttnTimer)
#define kResetTimerType offsetof(CCB, ResetTimer)

/*
 * Used to manage the send receive queue
 */
typedef struct {
    short len;			/* # of bytes in this fragment */
    char flags;			/* See #define's below */
    char data[1];
} HDR, *HDRPtr;

#define	HDR_LEN	3		/* Yes, I know it really is 4 bytes long... */

#define F_GAP		0x03
#define F_EOM		0x04
#define F_WRAP		0x08
#define F_VALID		0x10
#define F_ENCRYPTED	0x20	/* %%% Needed ??? */
#define F_LAST		0x40	/* This is last block in buffer */


/* %%% Are these two used anymore? */
#define sbufPtr(y) (&sp->sbuf[((y) < sp->sbuflen) ? (y) : ((y) - sp->sbuflen)])
#define rbufPtr(y) (&sp->rbuf[((y) < sp->rbuflen) ? (y) : ((y) - sp->rbuflen)])

/* End Internal.h */

/* fron h/adsp_supp.h */

void	CallUserRoutine();	/* (CCB FPTR sp); */


/*
 *	Add queue element to end of queue.  Pass Address of ptr to 
 *	1st element of queue
 */
int	qAddToEnd(); /* (void FPTR FPTR qhead, void FPTR qelem); */

/*
 *	Hunt down a linked list of queue elements looking for an element with
 *	'data' at 'offset' bytes into the queue element.
 */
void *qfind_b();		/* (void *qhead, word offset, word data); */ 
void *qfind_w();		/* (void *qhead, word offset, word data); */
void *qfind_p();		/* (void *qhead, word offset, void *ptr); */
void *qfind_o();		/* (void *qhead, word offset, void *ptr); */
void *qfind_m();		/* (void *qhead, void *match, 
				   ProcPtr compare_fnx); */


/*
 * Routines to handle sorted timer queues
 */
void InsertTimerElem();		/* (TimerElemPtr *qhead, TimerElemPtr t, 
				   word val); */
void RemoveTimerElem();		/* (TimerElemPtr *qhead, TimerElemPtr t); */
void TimerQueueTick();		/* (TimerElemPtr *qhead);*/

/* from h/adsp_global.h */

typedef struct {
	void *ccbList;		/* Ptr to list of connection control blocks */

	TimerElemPtr slowTimers; /* The probe timer list */
	TimerElemPtr fastTimers; /* The fast timer list */

	unsigned short lastCID;		/* Last connection ID assigned */
	char inTimer;		/* We're inside timer routine */
} GLOBAL;

extern GLOBAL adspGlobal;

/* Address of ptr to list of ccb's */
#define AT_ADSP_STREAMS ((CCB **)&(adspGlobal.ccbList))

#endif /* KERNEL */

#endif /* _NETAT_ADSP_INTERNAL_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	#ifndef _NETAT_ADSP_INTERNAL_H_
	23	#define _NETAT_ADSP_INTERNAL_H_
	24
	25	#ifdef KERNEL
	26
	27	/* from h/adsp_portab.h */
	28
	29	/* TypeDefs for the basic data bytes. */
	30
	31	typedef unsigned char byte, *bytePtr;
	32
	33	#ifdef NOT_USED
	34	typedef char int8;
	35	typedef short int16;
	36	typedef int int32;
	37	#endif
	38
	39	typedef unsigned char boolean;
	40
	41	typedef unsigned short word;
	42
	43	typedef unsigned int dword;
	44
	45	#define BYTE_AT(x) (*((byte PTR)(x)))
	46	#define WORD_AT(x) (*((word PTR)(x)))
	47	#define DWORD_AT(x) (*((dword PTR)(x)))
	48
	49	#define high(x) ((byte)((x) >> 8))
	50	#define low(x) ((byte)(x))
	51	#define hlword(h, l) (((byte)(l)) \| (((byte)(h)) << 8))
	52
	53	#define offsetof(typ,id) (size_t)&(((typ*)0)->id)
	54
	55	/*
	56	* On a Mac, there is no need to byte-swap data on the network, so
	57	* these macros do nothing
	58	*/
	59
	60	#define netw(x) x
	61	#define netdw(x) x
	62
	63	typedef struct
	64	{
65	at_net network; /* network number */
66	byte nodeid; /* node number */
67	byte socket; /* socket number */
68	} AddrBlk, *AddrBlkPtr;
69
70	typedef union
71	{
72	at_inet_t a;
73	} AddrUnion, *AddrUnionPtr;
74
75	/* End Portab.h */
76
77	/* from h/adsp_internal.h */
78
79	#undef T_IDLE
80
81	/*
82	* Default Behavior for ADSP
83	*/
84	#define ocIntervalDefault 6
85	#define ocMaximumDefault 10
86	#define probeIntervalDefault 180
87
88	/*
89	* MACROS for comparing 32-bit sequence numbers
90	*/
91	#define GT(x,y) (((long)(x-y)) > (long) 0)
92	#define LT(x,y) (((long)(x-y)) < (long) 0)
93	#define GTE(x,y) (((long)(x-y)) >= (long) 0)
94	#define LTE(x,y) (((long)(x-y)) <= (long) 0)
95	#define BETWEEN(x,y,z) (LTE(x,y) && LTE(y,z))
96
97	/*
98	* Use the kernel tick counter for SysTicks.
99	*/
100
101	#define SysTicks() lbolt
102
103	/*
104	* Timer element used for handling timings
105	*/
106	typedef struct timerelem {
107	struct timerelem *link;
108	short timer;
109	char type;
110	unsigned onQ:1; /* Bit-fields are faster than booleans */
111	} TimerElem;
112
113	typedef TimerElem *TimerElemPtr;
114
115	/*
116	* For AppleTalk Phase 2 event queue
117	*/
118	typedef struct {
119	Ptr qLink;
120	unsigned short qType;
121	ProcPtr callAddr;
122	} LAPEventElem;
123
124	typedef LAPEventElem *LAPEventElemPtr;
125
126	/*
127	* The Event types we're passed when an AppleTalk transition occurs
128	*/
129	#define AOpenTransition 0
130	#define ACloseTransition 2
131	#define ANetworkTransition 5
132
133	/*
134	* The element we're passed when a NetworkTransaction event occurs
135	*/
136	typedef struct TNetworkTransition {
137	Ptr private; /* pointer used internally by NetShare */
138	ProcPtr netValidProc; /* pointer to the network valid procedure */
139	} TNetworkTransition, *TPNetworkTransition;
140
141	typedef long (*NetworkTransitionProcPtr)();
142	/* (TPNetworkTransition nettrans,
143	unsigned long thenet); */
144	/*
145	* This is the connection control block
146	*/
147	typedef struct ccb {
148	/---These fields may not change order or size-----------/
149
150	struct ccb ccbLink; / link to next ccb */
151	unsigned short state; /* state of the connection end */
152	unsigned char userFlags; /* flags for unsolicited connection events */
153	unsigned char localSocket; /* socket number of this connection end */
154	AddrUnion remoteAddress; /* internet address of remote end */
155	unsigned short attnCode; /* attention code received */
156	unsigned short attnSize; /* size of received attention data */
157	unsigned char attnPtr; / ptr to received attention data */
158	unsigned short recvQPending; /* # bytes in receive queue %%% */
159	/------------------------------------------------------ /
160
161	struct adspcmd opb; / Outstanding open/close/remove/listens */
162	struct adspcmd spb; / Outstanding Sends */
163	struct adspcmd sapb; / Outstanding Send Attentions */
164	struct adspcmd frpb; / Outstanding Forward Resets */
165	struct adspcmd rpb; / Outstanding Read Requests */
166
167	struct ccb otccbLink; / link to next ccb */
168	int pid; /* Process ID for CCB owner */
169
170	unsigned short remCID; /* Remote Connection ID */
171	unsigned short locCID; /* Local Connection ID */
172	int sendSeq; /* Seq number of next char to send to remote */
173	int firstRtmtSeq; /* oldest seq # in local send queue */
174	int sendWdwSeq; /* Seq # of last char remote has bfr for */
175	int recvSeq; /* Seq of # of next char expected from rmte */
176	int recvWdw; /* # of bytes local end has buffer space for */
177	int attnSendSeq; /* Seq # of next attn pkt to send to remote */
178	int attnRecvSeq; /* Seq # of next packet local end expects */
179	int maxSendSeq; /* Highest seq # we ever sent on connection */
180
181	/* These must be in the first 255 bytes of the CCB */
182	TimerElem ProbeTimer; /* Timer element for probes (and open) */
183	TimerElem FlushTimer; /* Timer element for flushing data */
184	TimerElem RetryTimer; /* Timer element for retransmissions */
185	TimerElem AttnTimer; /* Timer element for attention packets */
186	TimerElem ResetTimer; /* Timer element for forward resets */
187
188	short openInterval; /* Interval between open connection packets */
189	short probeInterval; /* Interval between probes */
190	short sendInterval; /* Interval before automatic flush */
191	short rtmtInterval; /* Rexmit interval (dynamically determined) */
192
193	short sendCtl; /* Send control message bits */
194	short sendBlocking; /* Flush unsent data if > than sendBlocking */
195	short openRetrys; /* # of retrys for Connect & Accept */
196	short rbuflen; /* Total size of receive buffer */
197	short sbuflen; /* Total size of receive buffer */
198	char pad;
199	char lockFlag;
200	char badSeqMax; /* retransmit advice send threshold */
201	char badSeqCnt; /* # of of out-of-order packets received */
202	char useCheckSum; /* true to use DDP checksums */
203	char openState; /* Used for opening a connection (see below) */
204
205	gbuf_t rbuf_mb; / message block for the recv buffer */
206	gbuf_t *crbuf_mb;
207	gbuf_t sbuf_mb; / message block for the send buffer */
208	gbuf_t *csbuf_mb;
209	gbuf_t attn_mb; / message block for the attention buffer */
210	gbuf_t deferred_mb; / message block deferred for later processing */
211
212	#ifdef NOT_USED
213	char ioDone; /* flag for when the adsp header is busy */
214	#endif
215	char probeCntr; /* # of probes we can miss (counts down) */
216	char pktSendMax; /* Max # of packets to send without an ack */
217	char pktSendCnt; /* # of packets sent so far */
218
219	int sendStamp; /* Time of last ackRequest */
220	int timerSeq; /* Seq # of char corresponding to above time stamp */
221	short roundTrip; /* Average Round-Trip time (in 6ths of a second) */
222	short deviation; /* deviation from roundTrip time */
223
224	unsigned sData:1; /* There's data in the send queue */
225	unsigned waitingAck:1; /* We're waiting for an ack packet */
226	unsigned rData:1; /* There's data in the receive queue */
227	unsigned resentData:1; /* True when we resend data due to timeout */
228	unsigned sendDataAck:1; /* True if he requested an ack */
229	unsigned sendAttnAck:1; /* Must send attn acknowlege */
230	unsigned sendAttnData:1; /* Must send attn data */
231	unsigned callSend:1; /* Must call CheckSend() */
232	unsigned rbufFull:1; /* We've closed our receive window. */
233	unsigned noXmitFlow:1; /* True stops incrementing # of xmit
234	* packets to send in a row after receiving
235	* an ack packet. */
236	unsigned secureCCB:1; /* True if this is a secure connection */
237	unsigned removing:1; /* There is a dspRemove pending */
238	unsigned writeFlush:1; /* Flush send queue even if # bytes to
239	* send is less than send blocking. */
240	unsigned delay:1; /* do not complete commands until user
241	* * NO LONGER USED IN KERNEL * */
242	ADSP_FRAME f; /* Used to send every packet */
243	ADSP_OPEN_DATA of; /* Holds the data for the open exchange */
244	gref_t gref; / The queue associated with the CCB */
245	gbuf_t *sp_mp;
246	atlock_t lock;
247	atlock_t lockClose;
248	atlock_t lockRemove;
249	} CCB, *CCBPtr;
250
251
252	/*
253	* Change order and die !!! --- See the receive open packet code
254	*/
255	#define O_STATE_NOTHING 0 /* Not opening */
256	#define O_STATE_LISTEN 1 /* Listening for open request */
257	#define O_STATE_OPENWAIT 2 /* Sent Req, waiting for Ack to open
258	* request */
259	#define O_STATE_ESTABLISHED 3 /* Got Req, send Req+Ack,waiting Ack */
260	#define O_STATE_OPEN 4 /* Connection is open */
261
262	/*
263	* These bits are used in the sendCtl field to indicate what needs to be sent
264	*/
265	#define B_CTL_PROBE 0x0001
266	#define B_CTL_OREQ 0x0002
267	#define B_CTL_OACK 0x0004
268	#define B_CTL_OREQACK 0x0008
269	#define B_CTL_ODENY 0x0010
270	#define B_CTL_CLOSE 0x0020
271	#define B_CTL_FRESET 0x0040
272	#define B_CTL_FRESETACK 0x0080
273	#define B_CTL_RETRANSMIT 0x0100
274
275
276	#define kProbeTimerType offsetof(CCB, ProbeTimer)
277	#define kFlushTimerType offsetof(CCB, FlushTimer)
278	#define kRetryTimerType offsetof(CCB, RetryTimer)
279	#define kAttnTimerType offsetof(CCB, AttnTimer)
280	#define kResetTimerType offsetof(CCB, ResetTimer)
281
282	/*
283	* Used to manage the send receive queue
284	*/
285	typedef struct {
286	short len; /* # of bytes in this fragment */
287	char flags; /* See #define's below */
288	char data[1];
289	} HDR, *HDRPtr;
290
291	#define HDR_LEN 3 /* Yes, I know it really is 4 bytes long... */
292
293	#define F_GAP 0x03
294	#define F_EOM 0x04
295	#define F_WRAP 0x08
296	#define F_VALID 0x10
297	#define F_ENCRYPTED 0x20 /* %%% Needed ??? */
298	#define F_LAST 0x40 /* This is last block in buffer */
299
300
301	/* %%% Are these two used anymore? */
302	#define sbufPtr(y) (&sp->sbuf[((y) < sp->sbuflen) ? (y) : ((y) - sp->sbuflen)])
303	#define rbufPtr(y) (&sp->rbuf[((y) < sp->rbuflen) ? (y) : ((y) - sp->rbuflen)])
304
305	/* End Internal.h */
306
307	/* fron h/adsp_supp.h */
308
309	void CallUserRoutine(); /* (CCB FPTR sp); */
310
311
312	/*
313	* Add queue element to end of queue. Pass Address of ptr to
314	* 1st element of queue
315	*/
316	int qAddToEnd(); /* (void FPTR FPTR qhead, void FPTR qelem); */
317
318	/*
319	* Hunt down a linked list of queue elements looking for an element with
320	* 'data' at 'offset' bytes into the queue element.
321	*/
322	void qfind_b(); / (void qhead, word offset, word data); /
323	void qfind_w(); / (void qhead, word offset, word data); /
324	void qfind_p(); / (void qhead, word offset, void ptr); */
325	void qfind_o(); / (void qhead, word offset, void ptr); */
326	void qfind_m(); / (void qhead, void match,
327	ProcPtr compare_fnx); */
328
329
330	/*
331	* Routines to handle sorted timer queues
332	*/
333	void InsertTimerElem(); /* (TimerElemPtr *qhead, TimerElemPtr t,
334	word val); */
335	void RemoveTimerElem(); /* (TimerElemPtr qhead, TimerElemPtr t); /
336	void TimerQueueTick(); /* (TimerElemPtr qhead);/
337
338	/* from h/adsp_global.h */
339
340	typedef struct {
341	void ccbList; / Ptr to list of connection control blocks */
342
343	TimerElemPtr slowTimers; /* The probe timer list */
344	TimerElemPtr fastTimers; /* The fast timer list */
345
346	unsigned short lastCID; /* Last connection ID assigned */
347	char inTimer; /* We're inside timer routine */
348	} GLOBAL;
349
350	extern GLOBAL adspGlobal;
351
352	/* Address of ptr to list of ccb's */
353	#define AT_ADSP_STREAMS ((CCB **)&(adspGlobal.ccbList))
354
355	#endif /* KERNEL */
356
357	#endif /* _NETAT_ADSP_INTERNAL_H_ */