source: sbliveos2/trunk/drv16/commdbg.c@ 724

Last change on this file since 724 was 561, checked in by rudi, 14 years ago

SBLliveOS2: Adapt to newer OpenWatcom versions
  • Property svn:eol-style set to native
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File size: 10.4 KB
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1/* $Id: commdbg.c 561 2011-07-28 09:16:56Z rudi $ */
2
3/******************************************************************************
4* Jazz16 Physical Device Driver
5* Production code and toolkit sample
6*
7* (c) Copyright IBM Corporation 1993. All rights reserved
8* (c) Copyright Media Vision Corporation 1993, 1994. All rights reserved
9*
10* DISCLAIMER OF WARRANTIES. The following [enclosed] code is
11* sample code created by IBM Corporation and Media Vision Corporation.
12* It is provided to you solely for the purpose of assisting you in the
13* development of your applications.
14* The code is provided "AS IS", without warranty of any kind.
15* IBM and Media Vision shall not be liable for any damages arising out of
16* your use of the sample code, even if they have been advised of the
17* possibility of such damages.
18*
19*******************************************************************************
20*
21* commdbg.c = debug routines to send data to COM: port
22*
23* This file contains routines to send debug information to COM: ports
24* during execution of device driver.
25* The routines provide 'C' printf like functions that send their output
26* to the serial port rather than stdout.
27* The calls to these routines are only called for debug versions of the
28* driver. See file debug.h for flags to turn on/off different debug options.
29*
30* MODIFICATION HISTORY:
31* DATE CHANGE DESCRIPTION
32* unknown Creation (Media Vision)
33* 07/30/93 Add headers for toolkit
34* 09/21/93 Header modifications
35******************************************************************************/
36
37#define INCL_NOPMAPI
38#define INCL_DOSERRORS // for ERROR_INVALID_FUNCTION
39#include <os2.h>
40#include "dbgos2.h"
41#include "commdbg.h"
42
43BOOL fLineTerminate=TRUE;
44
45#define CR 0x0d
46#define LF 0x0a
47
48
49#define LEADING_ZEROES 0x8000
50#define SIGNIFICANT_FIELD 0x0007
51
52int dbglevel = 2;
53
54char hextab[]="0123456789ABCDEF";
55
56#ifdef DEBUG
57//#define MAGIC_COMM_PORT 0x3f8 // pulled from word ptr 40:0
58#define MAGIC_COMM_PORT 0x2f8 // pulled from word ptr 40:0
59
60
61#define UART_DATA 0x00 // UART Data port
62#define UART_INT_ENAB 0x01 // UART Interrupt enable
63#define UART_INT_ID 0x02 // interrupt ID
64#define UART_LINE_CTRL 0x03 // line control registers
65#define UART_MODEM_CTRL 0x04 // modem control register
66#define UART_LINE_STAT 0x05 // line status register
67#define UART_MODEM_STAT 0x06 // modem status regiser
68#define UART_DIVISOR_LO 0x00 // divisor latch least sig
69#define UART_DIVISOR_HI 0x01h // divisor latch most sig
70
71#define DELAY nop
72#endif
73
74#ifdef DEBUG //--------------------------- CharOut -
75void CharOut(char c)
76{
77 _asm {
78
79 mov dx, MAGIC_COMM_PORT // address of PS/2's first COM port
80 add dx, UART_LINE_STAT
81
82ReadyCheck:
83 in al, dx // wait for comm port ready signal
84
85 DELAY
86 DELAY
87 DELAY
88
89 test al, 020h
90 jz ReadyCheck
91
92 // Send the character
93
94 add dx, UART_DATA - UART_LINE_STAT
95 mov al,c
96 out dx, al
97
98 DELAY
99 DELAY
100 DELAY
101 }
102}
103#endif
104
105#ifdef DEBUG //------------------------- StringOut -
106void StringOut(char far *DbgStr)
107{
108 while (*DbgStr)
109 CharOut(*DbgStr++);
110
111 if (fLineTerminate)
112 {
113 CharOut(CR); // append carriage return,
114 CharOut(LF); // linefeed
115 }
116}
117#endif
118
119 //-------------------- DecWordToASCII -
120char far * cdecl DecWordToASCII(char far *StrPtr, USHORT wDecVal, USHORT Option)
121{
122 BOOL fNonZero=FALSE;
123 USHORT Digit;
124 USHORT Power=10000;
125
126 while (Power)
127 {
128 Digit=0;
129 while (wDecVal >=Power) //Digit=wDecVal/Power;
130 {
131 Digit++;
132 wDecVal-=Power;
133 }
134
135 if (Digit)
136 fNonZero=TRUE;
137
138 if (Digit ||
139 fNonZero ||
140 (Option & LEADING_ZEROES) ||
141 ((Power==1) && (fNonZero==FALSE)))
142 {
143 *StrPtr=(char)('0'+Digit);
144 StrPtr++;
145 }
146
147 if (Power==10000)
148 Power=1000;
149 else if (Power==1000)
150 Power=100;
151 else if (Power==100)
152 Power=10;
153 else if (Power==10)
154 Power=1;
155 else
156 Power=0;
157 } // end while
158
159 return (StrPtr);
160}
161
162 //-------------------- DecLongToASCII -
163char far * cdecl DecLongToASCII(char far *StrPtr, ULONG lDecVal,USHORT Option)
164{
165 BOOL fNonZero=FALSE;
166 ULONG Digit;
167 ULONG Power=1000000000; // 1 billion
168
169 while (Power)
170 {
171 Digit=0; // Digit=lDecVal/Power
172 while (lDecVal >=Power) // replaced with while loop
173 {
174 Digit++;
175 lDecVal-=Power;
176 }
177
178 if (Digit)
179 fNonZero=TRUE;
180
181 if (Digit ||
182 fNonZero ||
183 (Option & LEADING_ZEROES) ||
184 ((Power==1) && (fNonZero==FALSE)))
185 {
186 *StrPtr=(char)('0'+Digit);
187 StrPtr++;
188 }
189
190 if (Power==1000000000) // 1 billion
191 Power=100000000;
192 else if (Power==100000000)
193 Power=10000000;
194 else if (Power==10000000)
195 Power=1000000;
196 else if (Power==1000000)
197 Power=100000;
198 else if (Power==100000)
199 Power=10000;
200 else if (Power==10000)
201 Power=1000;
202 else if (Power==1000)
203 Power=100;
204 else if (Power==100)
205 Power=10;
206 else if (Power==10)
207 Power=1;
208 else
209 Power=0;
210 }
211 return (StrPtr);
212}
213 //-------------------- HexWordToASCII -
214char far * cdecl HexWordToASCII(char far *StrPtr, USHORT wHexVal, USHORT Option)
215{
216 BOOL fNonZero=FALSE;
217 USHORT Digit;
218 USHORT Power=0xF000;
219 USHORT ShiftVal=12;
220
221 while (Power)
222 {
223 Digit=(wHexVal & Power)>>ShiftVal;
224 if (Digit)
225 fNonZero=TRUE;
226
227 if (Digit ||
228 fNonZero ||
229 (Option & LEADING_ZEROES) ||
230 ((Power==0x0F) && (fNonZero==FALSE)))
231 //*StrPtr++=(char)('0'+Digit);
232 *StrPtr++=hextab[Digit];
233
234 Power>>=4;
235 ShiftVal-=4;
236 } // end while
237
238 return (StrPtr);
239}
240
241 //-------------------- HexLongToASCII -
242char far * cdecl HexLongToASCII(char far *StrPtr, ULONG wHexVal, USHORT Option)
243{
244 BOOL fNonZero=FALSE;
245 ULONG Digit;
246 ULONG Power=0xF0000000;
247 ULONG ShiftVal=28;
248
249 while (Power)
250 {
251 Digit=(wHexVal & Power)>>ShiftVal;
252 if (Digit)
253 fNonZero=TRUE;
254
255 if (Digit ||
256 fNonZero ||
257 (Option & LEADING_ZEROES) ||
258 ((Power==0x0F) && (fNonZero==FALSE)))
259 *StrPtr++=hextab[Digit];
260
261 if (Power==0xF0000000) // 1 billion
262 Power=0xF000000;
263 else if (Power==0xF000000)
264 Power=0xF00000;
265 else if (Power==0xF00000)
266 Power=0xF0000;
267 else if (Power==0xF0000)
268 Power=0xF000;
269 else if (Power==0xF000)
270 Power=0xF00;
271 else if (Power==0xF00)
272 Power=0xF0;
273 else if (Power==0xF0)
274 Power=0xF;
275 else Power=0;
276
277 ShiftVal-=4;
278 } // end while
279
280 return (StrPtr);
281}
282
283#ifdef DEBUG
284char BuildString[1024];
285
286 //------------------------- PrintfOut -
287void cdecl PrintfOut(char far *DbgStr , ...)
288{
289 char far *BuildPtr=BuildString;
290 char far *pStr=(char far *) DbgStr;
291 char far *SubStr;
292 union {
293 void far *VoidPtr;
294 USHORT far *WordPtr;
295 ULONG far *LongPtr;
296 ULONG far *StringPtr;
297 } Parm;
298 USHORT wBuildOption;
299
300 Parm.VoidPtr=(void far *) &DbgStr;
301 Parm.StringPtr++; // skip size of string pointer
302
303 while (*pStr)
304 {
305 // don't overflow target
306 if (BuildPtr >= (char far *) &BuildString[1024-2])
307 break;
308
309 switch (*pStr)
310 {
311 case '%':
312 wBuildOption=0;
313 pStr++;
314 if (*pStr=='0')
315 {
316 wBuildOption|=LEADING_ZEROES;
317 pStr++;
318 }
319 if (*pStr=='u') // always unsigned
320 pStr++;
321
322 switch(*pStr)
323 {
324 case 'x':
325 case 'X':
326 BuildPtr=HexWordToASCII(BuildPtr, *Parm.WordPtr++,wBuildOption);
327 pStr++;
328 continue;
329
330 case 'd':
331 BuildPtr=DecWordToASCII(BuildPtr, *Parm.WordPtr++,wBuildOption);
332 pStr++;
333 continue;
334
335 case 's':
336 SubStr=(char far *)*Parm.StringPtr;
337 while (*BuildPtr++ = *SubStr++);
338 Parm.StringPtr++;
339 BuildPtr--; // remove the \0
340 pStr++;
341 continue;
342
343 case 'l':
344 pStr++;
345 switch (*pStr)
346 {
347 case 'x':
348 case 'X':
349 BuildPtr=HexLongToASCII(BuildPtr, *Parm.LongPtr++,wBuildOption);
350 pStr++;
351 continue;
352
353 case 'd':
354 BuildPtr=DecLongToASCII(BuildPtr, *Parm.LongPtr++,wBuildOption);
355 pStr++;
356 continue;
357 } // end switch
358 continue; // dunno what he wants
359
360 case 0:
361 continue;
362 } // end switch
363 break;
364
365 case '\\':
366 pStr++;
367 switch (*pStr)
368 {
369 case 'n':
370 *BuildPtr++=LF;
371 pStr++;
372 continue;
373
374 case 'r':
375 *BuildPtr++=CR;
376 pStr++;
377 continue;
378
379 case 0:
380 continue;
381 break;
382 } // end switch
383
384 break;
385 } // end switch
386
387 *BuildPtr++=*pStr++;
388 } // end while
389
390 *BuildPtr=0; // cauterize the string
391 StringOut((char far *) BuildString); // print to comm port
392}
393#endif //DEBUG
394
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