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1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.1 (the "License"). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License.
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24:
25: /* ADSP.h
26: *
27: * From Mike Shoemaker (06/23/90)
28: *
29: * C Interfaces for the AppleTalk Data Stream Protocol (ADSP)
30: *
31: */
32:
33: #ifndef __ADSP__
34: #define __ADSP__
35:
36: #ifndef __APPLETALK__
37: #include <at/appletalk.h>
38: #endif
39:
40:
41: /* Solaris defines u as (curproc->p_user) */
42: #if defined(u)
43: # undef u
44: #endif
45:
46: typedef short OSErr;
47: typedef long (*ProcPtr)();
48: typedef ProcPtr *ProcHandle;
49: typedef char *Ptr;
50: typedef Ptr *Handle;
51:
52: /* result codes */
53:
54: #define errENOBUFS -1281
55: #define errRefNum -1280 /* bad connection refNum */
56: #define errAborted -1279 /* control call was aborted */
57: #define errState -1278 /* bad connection state for this operation */
58: #define errOpening -1277 /* open connection request failed */
59: #define errAttention -1276 /* attention message too long */
60: #define errFwdReset -1275 /* read terminated by forward reset */
61: #define errDSPQueueSize -1274 /* DSP Read/Write Queue Too small */
62: #define errOpenDenied -1273 /* open connection request was denied */
63:
64: /* control codes */
65:
66: #define dspInit 255 /* create a new connection end */
67: #define dspRemove 254 /* remove a connection end */
68: #define dspOpen 253 /* open a connection */
69: #define dspClose 252 /* close a connection */
70: #define dspCLInit 251 /* create a connection listener */
71: #define dspCLRemove 250 /* remove a connection listener */
72: #define dspCLListen 249 /* post a listener request */
73: #define dspCLDeny 248 /* deny an open connection request */
74: #define dspStatus 247 /* get status of connection end */
75: #define dspRead 246 /* read data from the connection */
76: #define dspWrite 245 /* write data on the connection */
77: #define dspAttention 244 /* send an attention message */
78: #define dspOptions 243 /* set connection end options */
79: #define dspReset 242 /* forward reset the connection */
80: #define dspNewCID 241 /* generate a cid for a connection end */
81:
82:
83: /* connection opening modes */
84:
85: #define ocRequest 1 /* request a connection with remote */
86: #define ocPassive 2 /* wait for a connection request from remote */
87: #define ocAccept 3 /* accept request as delivered by listener */
88: #define ocEstablish 4 /* consider connection to be open */
89:
90:
91: /* connection end states */
92:
93: #define sListening 1 /* for connection listeners */
94: #define sPassive 2 /* waiting for a connection request from remote */
95: #define sOpening 3 /* requesting a connection with remote */
96: #define sOpen 4 /* connection is open */
97: #define sClosing 5 /* connection is being torn down */
98: #define sClosed 6 /* connection end state is closed */
99:
100:
101:
102: /* client event flags */
103:
104: #define eClosed 0x80 /* received connection closed advice */
105: #define eTearDown 0x40 /* connection closed due to broken connection */
106: #define eAttention 0x20 /* received attention message */
107: #define eFwdReset 0x10 /* received forward reset advice */
108:
109: /* miscellaneous constants */
110:
111: #define attnBufSize 570 /* size of client attention buffer */
112: #define minDSPQueueSize 100 /* Minimum size of receive or send Queue */
113: #define defaultDSPQS 16384 /* random guess */
114: #define RecvQSize defaultDSPQS
115: #define SendQSize defaultDSPQS
116:
117: /* connection control block */
118:
119: struct TRCCB {
120: u_char *ccbLink; /* link to next ccb */
121: u_short refNum; /* user reference number */
122: u_short state; /* state of the connection end */
123: u_char userFlags; /* flags for unsolicited connection events */
124: u_char localSocket; /* socket number of this connection end */
125: at_inet_t remoteAddress; /* internet address of remote end */
126: u_short attnCode; /* attention code received */
127: u_short attnSize; /* size of received attention data */
128: u_char *attnPtr; /* ptr to received attention data */
129: u_char reserved[220]; /* for adsp internal use */
130: };
131:
132: typedef struct TRCCB TRCCB;
133: typedef TRCCB *TPCCB;
134:
135: /* init connection end parameters */
136:
137: struct TRinitParams {
138: TPCCB ccbPtr; /* pointer to connection control block */
139: ProcPtr userRoutine; /* client routine to call on event */
140: u_char *sendQueue; /* client passed send queue buffer */
141: u_char *recvQueue; /* client passed receive queue buffer */
142: u_char *attnPtr; /* client passed receive attention buffer */
143: u_short sendQSize; /* size of send queue (0..64K bytes) */
144: u_short recvQSize; /* size of receive queue (0..64K bytes) */
145: u_char localSocket; /* local socket number */
146: };
147:
148: typedef struct TRinitParams TRinitParams;
149:
150: /* open connection parameters */
151:
152: struct TRopenParams {
153: u_short localCID; /* local connection id */
154: u_short remoteCID; /* remote connection id */
155: at_inet_t remoteAddress; /* address of remote end */
156: at_inet_t filterAddress; /* address filter */
157: unsigned long sendSeq; /* local send sequence number */
158: u_long recvSeq; /* receive sequence number */
159: u_long attnSendSeq; /* attention send sequence number */
160: u_long attnRecvSeq; /* attention receive sequence number */
161: u_short sendWindow; /* send window size */
162: u_char ocMode; /* open connection mode */
163: u_char ocInterval; /* open connection request retry interval */
164: u_char ocMaximum; /* open connection request retry maximum */
165: };
166:
167: typedef struct TRopenParams TRopenParams;
168:
169: /* close connection parameters */
170:
171: struct TRcloseParams {
172: u_char abort; /* abort connection immediately if non-zero */
173: };
174:
175: typedef struct TRcloseParams TRcloseParams;
176:
177: /* client status parameter block */
178:
179: struct TRstatusParams {
180: TPCCB ccbPtr; /* pointer to ccb */
181: u_short sendQPending; /* pending bytes in send queue */
182: u_short sendQFree; /* available buffer space in send queue */
183: u_short recvQPending; /* pending bytes in receive queue */
184: u_short recvQFree; /* available buffer space in receive queue */
185: };
186:
187: typedef struct TRstatusParams TRstatusParams;
188:
189: /* read/write parameter block */
190:
191: struct TRioParams {
192: u_short reqCount; /* requested number of bytes */
193: u_short actCount; /* actual number of bytes */
194: u_char *dataPtr; /* pointer to data buffer */
195: u_char eom; /* indicates logical end of message */
196: u_char flush; /* send data now */
197: u_char dummy[2]; /*### LD */
198: };
199:
200: typedef struct TRioParams TRioParams;
201:
202: /* attention parameter block */
203:
204: struct TRattnParams {
205: u_short attnCode; /* client attention code */
206: u_short attnSize; /* size of attention data */
207: u_char *attnData; /* pointer to attention data */
208: u_char attnInterval; /* retransmit timer in 10-tick intervals */
209: u_char dummy[3]; /* ### LD */
210: };
211:
212: typedef struct TRattnParams TRattnParams;
213:
214: /* client send option parameter block */
215:
216: struct TRoptionParams {
217: u_short sendBlocking; /* quantum for data packets */
218: u_char sendTimer; /* send timer in 10-tick intervals */
219: u_char rtmtTimer; /* retransmit timer in 10-tick intervals */
220: u_char badSeqMax; /* threshold for sending retransmit advice */
221: u_char useCheckSum; /* use ddp packet checksum */
222: u_short filler; /* ### LD */
223: int newPID; /* ### Temp for backward compatibility 02/11/94 */
224: };
225:
226: typedef struct TRoptionParams TRoptionParams;
227:
228: /* new cid parameters */
229:
230: struct TRnewcidParams {
231: u_short newcid; /* new connection id returned */
232: };
233:
234: typedef struct TRnewcidParams TRnewcidParams;
235:
236: union adsp_command {
237: TRinitParams initParams; /* dspInit, dspCLInit */
238: TRopenParams openParams; /* dspOpen, dspCLListen, dspCLDeny */
239: TRcloseParams closeParams; /* dspClose, dspRemove */
240: TRioParams ioParams; /* dspRead, dspWrite, dspAttnRead */
241: TRattnParams attnParams; /* dspAttention */
242: TRstatusParams statusParams; /* dspStatus */
243: TRoptionParams optionParams; /* dspOptions */
244: TRnewcidParams newCIDParams; /* dspNewCID */
245: };
246:
247: /* ADSP CntrlParam ioQElement */
248:
249: struct DSPParamBlock {
250: struct QElem *qLink;
251: short qType;
252: short ioTrap;
253: Ptr ioCmdAddr;
254: ProcPtr ioCompletion;
255: OSErr ioResult;
256: char *ioNamePtr;
257: short ioVRefNum;
258: short ioCRefNum; /* adsp driver refNum */
259: short csCode; /* adsp driver control code */
260: long qStatus; /* adsp internal use */
261: u_short ccbRefNum; /* connection end refNum */
262: union adsp_command u;
263: };
264:
265: typedef struct DSPParamBlock DSPParamBlock;
266: typedef DSPParamBlock *DSPPBPtr;
267:
268: struct adspcmd {
269: struct adspcmd *qLink;
270: u_int ccbRefNum;
271: caddr_t ioc;
272: #ifdef _KERNEL
273: gref_t *gref;
274: gbuf_t *mp;
275: #else
276: void *gref;
277: void *mp;
278: #endif
279: short ioResult;
280: u_short ioDirection;
281: short csCode;
282: u_short socket;
283: union adsp_command u;
284: };
285: #endif
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