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1.1 root 1: /*
2: * Copyright (c) 1988 Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms are permitted
6: * provided that the above copyright notice and this paragraph are
7: * duplicated in all such forms and that any documentation,
8: * advertising materials, and other materials related to such
9: * distribution and use acknowledge that the software was developed
10: * by the University of California, Berkeley. The name of the
11: * University may not be used to endorse or promote products derived
12: * from this software without specific prior written permission.
13: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14: * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15: * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16: *
17: * @(#)api.h 4.3 (Berkeley) 9/23/89
18: */
19:
20: /*
21: * This file contains header information used by the PC API routines.
22: */
23:
24: #if !defined(MSDOS)
25: #define far /* For 'far *' checks */
26: #endif /* !defined(MSDOS) */
27:
28: #define API_INTERRUPT_NUMBER 0x7A /* API Interrupt Number */
29:
30: /*
31: * Define the gate numbers. These are returned via the Name Resolution
32: * service.
33: */
34:
35: #define GATE_SESSMGR 1234
36: #define GATE_KEYBOARD 5678
37: #define GATE_COPY 9101
38: #define GATE_OIAM 1121
39:
40: /*
41: * The names which correspond to the above gate numbers.
42: */
43:
44: #define NAME_SESSMGR "SESSMGR "
45: #define NAME_KEYBOARD "KEYBOARD"
46: #define NAME_COPY "COPY "
47: #define NAME_OIAM "OIAM "
48:
49:
50: /*
51: * Name Resolution is specified in AH.
52: */
53:
54: #define NAME_RESOLUTION 0x81
55:
56: #if defined(unix)
57: /*
58: * In unix, we offer a service to allow the application to keep from
59: * having to poll us constantly.
60: */
61: #define PS_OR_OIA_MODIFIED 0x99
62:
63: #endif /* defined(unix) */
64:
65: /*
66: * Codes specified in AL for various services.
67: */
68:
69: #define QUERY_SESSION_ID 0x01
70: #define QUERY_SESSION_PARAMETERS 0x02
71: #define QUERY_SESSION_CURSOR 0x0b
72:
73: #define CONNECT_TO_KEYBOARD 0x01
74: #define DISCONNECT_FROM_KEYBOARD 0x02
75: #define WRITE_KEYSTROKE 0x04
76: #define DISABLE_INPUT 0x05
77: #define ENABLE_INPUT 0x06
78:
79: #define COPY_STRING 0x01
80:
81: #define READ_OIA_GROUP 0x02
82:
83: /*
84: * For each service, we define the assoicated parameter blocks.
85: */
86:
87: /*
88: * Supervisor Services
89: */
90:
91: typedef struct {
92: char gate_name[8];
93: } NameResolveParms;
94:
95:
96: /*
97: * Session Information Services
98: */
99:
100: typedef struct {
101: char
102: short_name,
103: type,
104: session_id,
105: reserved,
106: long_name[8];
107: } NameArrayElement;
108:
109: typedef struct {
110: unsigned char
111: length,
112: number_matching_session;
113: NameArrayElement
114: name_array_element; /* Variable number */
115: } NameArray;
116:
117: typedef struct {
118: char
119: rc,
120: function_id,
121: option_code,
122: data_code;
123: NameArray far
124: *name_array;
125: char
126: long_name[8];
127: } QuerySessionIdParms;
128:
129: #define ID_OPTION_BY_NAME 0x01 /* By short (or long) name */
130: #define ID_OPTION_ALL 0x00 /* All (of specified type */
131:
132: typedef struct {
133: char
134: rc,
135: function_id,
136: session_id,
137: reserved,
138: session_type,
139: session_characteristics,
140: rows,
141: columns;
142: char far
143: *presentation_space;
144: } QuerySessionParametersParms;
145:
146: #define TYPE_WSCTL 0x01 /* Work Station Control */
147: #define TYPE_DFT 0x02 /* DFT Host Session */
148: #define TYPE_CUT 0x03 /* CUT Host Session */
149: #define TYPE_NOTEPAD 0x04 /* Notepad Session */
150: #define TYPE_PC 0x05 /* Personal Computer Session */
151:
152: #define CHARACTERISTIC_EAB 0x80 /* Extended Attribute Buffer */
153: #define CHARACTERISTIC_PSS 0x40 /* Program Symbols Supported */
154:
155: typedef struct {
156: char
157: rc,
158: function_id,
159: session_id,
160: cursor_type,
161: row_address, /* from 0 */
162: column_address; /* from 0 */
163: } QuerySessionCursorParms;
164:
165: #define CURSOR_INHIBITED_AUTOSCROLL 0x10
166: #define CURSOR_INHIBITED 0x04
167: #define CURSOR_BLINKING 0x02
168: #define CURSOR_BOX 0x01
169: typedef struct {
170: char
171: rc,
172: function_id,
173: session_id,
174: reserved;
175: short
176: event_queue_id,
177: input_queue_id;
178: char
179: intercept_options,
180: first_connection_identifier;
181: } ConnectToKeyboardParms;
182:
183: typedef struct {
184: char
185: rc,
186: function_id,
187: session_id,
188: reserved;
189: short
190: connectors_task_id;
191: } DisconnectFromKeyboardParms;
192:
193: typedef struct {
194: unsigned char
195: scancode,
196: shift_state;
197: } KeystrokeEntry;
198:
199: typedef struct {
200: short
201: length; /* Length (in bytes) of list */
202: KeystrokeEntry keystrokes; /* Variable size */
203: } KeystrokeList;
204:
205: typedef struct {
206: char
207: rc,
208: function_id,
209: session_id,
210: reserved;
211: short
212: connectors_task_id;
213: char
214: options,
215: number_of_keys_sent;
216: union {
217: KeystrokeEntry
218: keystroke_entry;
219: KeystrokeList far
220: *keystroke_list;
221: } keystroke_specifier;
222: } WriteKeystrokeParms;
223:
224: #define OPTION_SINGLE_KEYSTROKE 0x20
225: #define OPTION_MULTIPLE_KEYSTROKES 0x30
226:
227: typedef struct {
228: char
229: rc,
230: function_id,
231: session_id,
232: reserved;
233: short
234: connectors_task_id;
235: } DisableInputParms;
236:
237: typedef DisableInputParms EnableInputParms;
238:
239: typedef struct {
240: char
241: session_id,
242: reserved;
243: char far
244: *buffer;
245: char
246: characteristics,
247: session_type;
248: short
249: begin; /* Offset within buffer */
250: } BufferDescriptor;
251:
252: typedef struct {
253: char
254: rc,
255: function_id;
256: BufferDescriptor
257: source;
258: short
259: source_end; /* Offset within source buffer */
260: BufferDescriptor
261: target;
262: char
263: copy_mode,
264: reserved;
265: } CopyStringParms;
266:
267: #define COPY_MODE_7_COLOR 0x80 /* Else 4 color mode */
268: #define COPY_MODE_FIELD_ATTRIBUTES 0x40 /* Else don't copy attributes */
269:
270: typedef struct {
271: char
272: rc,
273: function_id,
274: session_id,
275: reserved;
276: char far
277: *oia_buffer;
278: char
279: oia_group_number;
280: } ReadOiaGroupParms;
281:
282: /* If the user wants all groups, we return API_OIA_BYTES_ALL_GROUPS bytes */
283: #define API_OIA_ALL_GROUPS '\377'
284: #define API_OIA_BYTES_ALL_GROUPS 22 /* 22 bytes of data */
285:
286: /* API_OIA_INPUT_INHIBITED is special. It returns more than on byte of data */
287: #define API_OIA_INPUT_INHIBITED 8
288:
289: #define API_OIA_LAST_LEGAL_GROUP 18 /* Highest legal number */
290:
291:
292:
293: #if defined(MSDOS)
294:
295: #if !defined(FP_SEG)
296: #include <dos.h>
297: #endif /* !defined(FP_SEG) */
298:
299: #else /* defined(MSDOS) */
300:
301: /*
302: * These definitions are here to provide the descriptions of
303: * some registers which are, normally, defined in <dos.h> on
304: * a dos system.
305: */
306:
307: #define FP_SEG(x) ((unsigned int)(((unsigned long)(x))>>16))
308: #define FP_OFF(y) ((unsigned int)(((unsigned long)(y))&0xFFFF))
309:
310: /*
311: * Undo the preceeding.
312: */
313:
314: #define SEG_OFF_BACK(x,y) (((x)<<16)|(y))
315:
316: /*
317: * Now, it is somewhat of a pain, but we need to keep
318: * 8086 conventions about which of the "highlow"'s map
319: * into which of the "words".
320: */
321:
322: #include <sys/param.h> /* Get ENDIAN from machine/endian.h */
323:
324: /* Determine endian'ess (if necessary) */
325:
326: #if !(defined(BYTE_ORDER) && defined(BIG_ENDIAN))
327: #define LITTLE_ENDIAN 1234 /* least-significant byte first (vax) */
328: #define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */
329:
330: #if defined(vax) || defined(ns32000) || defined(i386) || (defined(mips)&&defined(MIPSEL))
331: #define BYTE_ORDER LITTLE_ENDIAN
332: #endif /* defined(vax) || defined(ns32000) */
333:
334: #if defined(sun) || defined(tahoe) || defined(ibm032) || defined(pyr) || defined(gould) || (defined(mips)&&defined(MIPSEB))
335: #define BYTE_ORDER BIG_ENDIAN
336: #endif /* defined(sun) || defined(tahoe) || defined(ibm032) || defined(pyr) || defined(gould) */
337:
338: #endif /* !(defined(BYTE_ORDER) && defined(BIG_ENDIAN)) */
339:
340: struct highlow {
341: unsigned char
342: #if BYTE_ORDER == LITTLE_ENDIAN
343: al,
344: ah,
345: bl,
346: bh,
347: cl,
348: ch,
349: dl,
350: dh;
351: #endif /* BYTE_ORDER == LITTLE_ENDIAN */
352: #if BYTE_ORDER == BIG_ENDIAN
353: ah,
354: al,
355: bh,
356: bl,
357: ch,
358: cl,
359: dh,
360: dl;
361: #endif /* BYTE_ORDER == BIG_ENDIAN */
362: };
363:
364: struct words {
365: unsigned short
366: ax,
367: bx,
368: cx,
369: dx;
370: unsigned short
371: si,
372: di;
373: };
374:
375: union REGS {
376: struct highlow h;
377: struct words x;
378: };
379:
380: struct SREGS {
381: unsigned short
382: cs,
383: ds,
384: es,
385: ss;
386: };
387: #endif /* defined(MSDOS) (else section) */
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