source: GPL/drv32/parse.c@ 1

Last change on this file since 1 was 1, checked in by vladest, 20 years ago

initial import
File size: 9.0 KB
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[1]1/* $Id: parse.c,v 1.3 2003/08/08 15:09:03 vladest Exp $ */
2
3/*
4 * Config.sys parameter parsing
5 *
6 * (C) 2000-2002 InnoTek Systemberatung GmbH
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public
19 * License along with this program; if not, write to the Free
20 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
21 * USA.
22 */
23
24#ifdef __cplusplus
25extern "C" {
26#endif
27#define INCL_NOPMAPI
28#define INCL_DOSMISC
29#include <os2.h>
30#ifdef __cplusplus
31}
32#endif
33
34#include <devhelp.h>
35#include <devtype.h>
36#include <devrp.h>
37#include <unicard.h>
38#include "parse.h" // NUM_DEVICES
39#include <string.h>
40
41// True if the /V parameter was specified
42int fVerbose = FALSE;
43int fDebug = FALSE;
44int ForceCard = CARD_NONE;
45
46extern "C" short int midi_port;
47
48#ifdef DEBUG
49extern "C" short int MAGIC_COMM_PORT;
50#endif
51
52//*****************************************************************************
53//*****************************************************************************
54int toupper(int c)
55{
56 return (unsigned) c - 'a' <= 'z' - 'a' ? c - ('a' - 'A') : c;
57}
58//*****************************************************************************
59//*****************************************************************************
60CHAR FAR48 *mymemchr(CHAR FAR48 *strP, CHAR c, USHORT size)
61{
62 USHORT i;
63 // search for the character - return position if found
64 i = 0;
65 while (i <= size - 1) {
66 if (*strP == c)
67 return (strP);
68 strP++;
69 i++;
70 }
71 // character not found - return null
72 return ((CHAR FAR48 *) 0);
73}
74//*****************************************************************************
75//*****************************************************************************
76
77USHORT sz2us(char FAR48 *sz, int base)
78{
79 static char digits[] = "0123456789ABCDEF";
80
81 USHORT us=0;
82 // char *pc;
83 CHAR FAR48 *pc;
84
85 // skip leading spaces
86 while (*sz == ' ') sz++;
87
88 // skip leading zeros
89 while (*sz == '0') sz++;
90
91 // accumulate digits - return error if unexpected character encountered
92 for (;;sz++) {
93 pc = (CHAR FAR48 *) mymemchr(digits, toupper(*sz), base);
94 if (!pc)
95 return us;
96 us = (us * base) + (pc - digits);
97 }
98}
99//*****************************************************************************
100//*****************************************************************************
101int IsWhitespace(char ch)
102{
103 if ( ch > '9' && ch < 'A')
104 return TRUE;
105 if ( ch < '0' || ch > 'Z')
106 return TRUE;
107
108 return FALSE;
109}
110//*****************************************************************************
111//*****************************************************************************
112char FAR48 *SkipWhite(char FAR48 *psz)
113{
114 while (*psz) {
115 if (!IsWhitespace((char) toupper(*psz))) return psz;
116 psz++;
117 }
118 return NULL;
119}
120//*****************************************************************************
121//*****************************************************************************
122void CheckCardName(char FAR48 *psz)
123{
124 char name[CARD_MAX_LEN+1];
125 int i;
126
127 for (i=0; i<CARD_MAX_LEN; i++) {
128 name[i] = toupper(psz[i]);
129 if(name[i] == ' ') {
130 name[i] = 0;
131 break;
132 }
133 }
134 name[CARD_MAX_LEN] = 0;
135
136 if(!strcmp(name, CARD_STRING_SBLIVE)) {
137 ForceCard = CARD_SBLIVE;
138 }
139 else
140 if(!strcmp(name, CARD_STRING_ALS4000)) {
141 ForceCard = CARD_ALS4000;
142 }
143 else
144 if(!strcmp(name, CARD_STRING_CMEDIA)) {
145 ForceCard = CARD_CMEDIA;
146 }
147 else
148 if(!strcmp(name, CARD_STRING_CS4281)) {
149 ForceCard = CARD_CS4281;
150 }
151 else
152 if(!strcmp(name, CARD_STRING_ICH)) {
153 ForceCard = CARD_ICH;
154 }
155 else
156 if(!strcmp(name, CARD_STRING_CS46XX)) {
157 ForceCard = CARD_CS46XX;
158 }
159 else
160 if(!strcmp(name, CARD_STRING_VIA82XX)) {
161 ForceCard = CARD_VIA82XX;
162 }
163 else
164 if(!strcmp(name, CARD_STRING_ESS1938)) {
165 ForceCard = CARD_ESS1938;
166 }
167 else
168 if(!strcmp(name, CARD_STRING_VORTEX)) {
169 ForceCard = CARD_VORTEX;
170 }
171 else
172 if(!strcmp(name, CARD_STRING_ENSONIQ)) {
173 ForceCard = CARD_ENSONIQ;
174 }
175 else
176 if(!strcmp(name, CARD_STRING_TRIDENT)) {
177 ForceCard = CARD_TRIDENT;
178 }
179 else
180 if(!strcmp(name, CARD_STRING_NEOMAGIC)) {
181 ForceCard = CARD_NEOMAGIC;
182 }
183 else
184 if(!strcmp(name, CARD_STRING_FM801)) {
185 ForceCard = CARD_FM801;
186 }
187 else
188 if(!strcmp(name, CARD_STRING_ATIIXP)) {
189 ForceCard = CARD_ATIIXP;
190 }
191 else
192 if(!strcmp(name, CARD_STRING_AUDIGYLS)) {
193 ForceCard = CARD_AUDIGYLS;
194 }
195 else
196 if(!strcmp(name, CARD_STRING_BT87X)) {
197 ForceCard = CARD_BT87X;
198 }
199 else
200 if(!strcmp(name, CARD_STRING_AZX)) {
201 ForceCard = CARD_AZX;
202 }
203
204}
205//*****************************************************************************
206//*****************************************************************************
207int DoParm(char cParm, char FAR48 *pszOption)
208{
209 switch (cParm) {
210 case 'V': // Verbose option
211 fVerbose = TRUE;
212 break;
213 case 'D':
214 fDebug = TRUE;
215 break;
216 case 'C':
217 CheckCardName(pszOption);
218 break;
219#if 1
220 case 'M':
221 midi_port = 0x300;
222 //sz2us(pszOption, 16);
223 break;
224#endif
225#ifdef DEBUG
226 case 'P':
227 if(*pszOption == '0') {
228 MAGIC_COMM_PORT = 0x000;
229 }
230 else
231 if(*pszOption == '1') {
232 MAGIC_COMM_PORT = 0x3f8;
233 }
234 else
235 if(*pszOption == '2') {
236 MAGIC_COMM_PORT = 0x2f8;
237 }
238 break;
239#endif
240
241 default:
242 return FALSE; // unknown parameter
243 }
244 return TRUE;
245}
246
247/* Function: ParseParm
248 Input: pointer to the letter of the parameter (e.g. the 'P' in 'P1:330').
249 length of this parameter, which must be at least 1
250 Output: TRUE if the parameter was value
251 Purpose: parses the string into three parts: the letter parameter, the port
252 number, and the option string. Calls DoParm with these values.
253 Notes:
254 the following describes the format of valid parameters.
255 1. Parameters consist of a letter, an optional number, and an
256 optional 'option'. The format is x[n][:option], where 'x' is the
257 letter, 'n' is the number, and 'option' is the option.
258 2. Blanks are delimeters between parameters, therefore there are no
259 blanks within a parameter.
260 3. The option is preceded by a colon
261 This gives us only four possibilities:
262 P (length == 1)
263 P1 (length == 2)
264 P:option (length >= 3)
265 P1:option (length >= 4)
266*/
267int ParseParm(char FAR48 *pszParm, int iLength)
268{
269 char ch,ch1=(char) toupper(*pszParm); // get letter
270
271 if (iLength == 1) // only a letter?
272 return DoParm(ch1,NULL);
273
274 ch=pszParm[1]; // should be either 1-9 or :
275 if (ch < '1' || (ch > '9' && ch != ':'))
276 return FALSE;
277
278 if (iLength == 3) {
279 if (ch != ':')
280 return FALSE;
281 return DoParm(ch1,pszParm+2);
282 }
283
284 if (ch == ':')
285 return DoParm(ch1,pszParm+2);
286
287 return DoParm(ch1, pszParm+3);
288}
289//*****************************************************************************
290//*****************************************************************************
291int GetParms(char FAR48 *pszCmdLine)
292{
293 int iLength;
294
295 while (*pszCmdLine != ' ') { // skip over filename
296 if (!*pszCmdLine) return TRUE; // no params? then just exit
297 pszCmdLine++;
298 }
299
300 while (TRUE) {
301 pszCmdLine=SkipWhite(pszCmdLine); // move to next param
302 if (!pszCmdLine) return TRUE; // exit if no more
303
304 for (iLength=0; pszCmdLine[iLength]; iLength++) // calculate length
305 if (pszCmdLine[iLength] == ' ') break; // of parameter
306
307 if (!ParseParm(pszCmdLine,iLength)) // found parameter, so parse it
308 return FALSE;
309
310 while (*pszCmdLine != ' ') { // skip over parameter
311 if (!*pszCmdLine) return TRUE; // no params? then just exit
312 pszCmdLine++;
313 }
314 }
315}
316//*****************************************************************************
317//*****************************************************************************
318
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