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1
2
3 HEADERS += \
4 $${PWD}/src/RS232.h
5
6 win32:SOURCES += $${PWD}/src/RS232_win.c
7
8 unix:SOURCES += $${PWD}/src/RS232_unix.c
9
10 debug:DEFINES+=RS232_debug
11
12
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@@ -1,395 +1,395
1 1 #include <stdio.h>
2 2 #include <unistd.h>
3 3 #include <fcntl.h>
4 4 #include <string.h>
5 5 #include <errno.h>
6 6 #include <malloc.h>
7 7
8 8 #include <windows.h>
9 9 #include "RS232.h"
10 10 #include <locale.h>
11 11
12 12
13 13
14 14 int privatedecodeparity(rs232parity Parity )
15 15 {
16 16 switch(Parity)
17 17 {
18 18 case rs232parityNo:
19 19 return NOPARITY;
20 20 break;
21 21 case rs232parityOdd:
22 22 return ODDPARITY;
23 23 break;
24 24 case rs232parityEven:
25 25 return EVENPARITY;
26 26 break;
27 27 default:
28 28 return NOPARITY;
29 29 break;
30 30 }
31 31 }
32 32
33 33 int privatedecodestop(rs232stop NbStop)
34 34 {
35 35 switch(NbStop)
36 36 {
37 37 case rs232OneStop:
38 38 return ONESTOPBIT;
39 39 break;
40 40 case rs232One5Stop:
41 41 return ONE5STOPBITS;
42 42 break;
43 43 case rs232TwoStop:
44 44 return TWOSTOPBITS;
45 45 break;
46 46 default:
47 47 return ONESTOPBIT;
48 48 break;
49 49 }
50 50 }
51 51
52 52
53 53
54 54 rs232speed_t rs232cfspeed(unsigned int BaudeRate)
55 55 {
56 56
57 57 if(BaudeRate<123)
58 58 return (rs232speed_t)CBR_110;
59 59
60 60 if(BaudeRate<450)
61 61 return (rs232speed_t)CBR_300;
62 62
63 63 if(BaudeRate<900)
64 64 return (rs232speed_t)CBR_600;
65 65
66 66 if(BaudeRate<1500)
67 67 return (rs232speed_t)CBR_1200;
68 68
69 69 if(BaudeRate<3600)
70 70 return (rs232speed_t)CBR_2400;
71 71
72 72 if(BaudeRate<7200)
73 73 return (rs232speed_t)CBR_4800;
74 74
75 75 if(BaudeRate<14000)
76 76 return (rs232speed_t)CBR_9600;
77 77
78 78 if(BaudeRate<16800)
79 79 return (rs232speed_t)CBR_14400;
80 80
81 81 if(BaudeRate<28800)
82 82 return (rs232speed_t)CBR_19200;
83 83
84 84 if(BaudeRate<48000)
85 85 return (rs232speed_t)CBR_38400;
86 86
87 87 if(BaudeRate<86400)
88 88 return (rs232speed_t)CBR_57600;
89 89
90 90 if(BaudeRate<172800)
91 91 return (rs232speed_t)CBR_115200;
92 92
93 93 if(BaudeRate<345600)
94 94 return (rs232speed_t)230400;
95 95
96 96 if(BaudeRate<345600)
97 97 return (rs232speed_t)460800;
98 98
99 99 if(BaudeRate<748800)
100 100 return (rs232speed_t)576000;
101 101
102 102 if(BaudeRate<1210800)
103 103 return (rs232speed_t)921600;
104 104
105 105 if(BaudeRate<1750000)
106 106 return (rs232speed_t)1500000;
107 107
108 108 if(BaudeRate<2250000)
109 109 return (rs232speed_t)2000000;
110 110
111 111 if(BaudeRate<2750000)
112 112 return (rs232speed_t)2500000;
113 113 else
114 114 return (rs232speed_t)3000000;
115 115 }
116 116
117 117
118 118 rs232port_t rs232open(char* psPortName)
119 119 {
120 120 rs232port_t fd;
121 121 /* Char to Wchar conversion*/
122 122 int neededSize = MultiByteToWideChar(CP_ACP, 0, psPortName, -1, 0, 0);
123 123 wchar_t* wcstr = (wchar_t*)malloc(sizeof(wchar_t)*neededSize);
124 124 MultiByteToWideChar(CP_ACP, 0, psPortName, -1, wcstr, neededSize);
125 125 fd = (rs232port_t)CreateFile(wcstr,GENERIC_READ | GENERIC_WRITE,0,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
126 126 free(wcstr);
127 127 #ifdef RS232_debug
128 128 if(fd==(rs232port_t)INVALID_HANDLE_VALUE)
129 129 {
130 130 printf("can't open Port\n");
131 131 return (rs232port_t)badPortValue;
132 132 }
133 133 #endif
134 134 return fd;
135 135 }
136 136
137 137 int rs232close(rs232port_t fd)
138 138 {
139 139 if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
140 140 {
141 141 return (rs232port_t)badPortValue;
142 142 }
143 143 else
144 144 {
145 145 CloseHandle((HANDLE)fd);
146 146 return rs232noerr;
147 147 }
148 148 }
149 149
150 150 rs232portslist_t* rs232getportlist() //here is the very dirty way!
151 151 {
152 152 int i=0;
153 153 char devName[]="COM111";
154 154 rs232port_t testport;
155 155 rs232portslist_t* firstitem=NULL;
156 156 rs232portslist_t* previtem=NULL;
157 157 for(i=0;i<256;i++)
158 158 {
159 159 devName[3] = '\0';
160 160 devName[4] = '\0';
161 161 devName[5] = '\0';
162 162 devName[6] = '\0';
163 163 sprintf(devName+3,"%d",i);
164 164 testport= rs232open(devName);
165 165 if(testport != (rs232port_t)badPortValue)
166 166 {
167 167 rs232portslist_t* item = (rs232portslist_t*)malloc(sizeof(rs232portslist_t));
168 168 char* name = (char*)malloc(7);
169 169 strcpy(name,devName);
170 170 item->name = name;
171 171 item->next = NULL;
172 172 if(NULL!=previtem)previtem->next = item;
173 173 previtem = item;
174 174 if(NULL==firstitem)firstitem = item;
175 175 rs232close(testport);
176 176 }
177 177 }
178 178 return firstitem;
179 179 }
180 180
181 181 void rs232deleteportlist(rs232portslist_t* list)
182 182 {
183 183 if(list!=NULL)
184 184 {
185 185 if(list->next != NULL)
186 186 rs232deleteportlist(list->next);
187 187 free(list);
188 188 }
189 189 }
190 190
191 191
192 192 int rs232setup(rs232port_t fd, int ChSize, int BaudeRate, rs232parity Parity, rs232stop NbStop)
193 193 {
194 194 if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
195 195 {
196 196 return (rs232port_t)badPortValue;
197 197 }
198 198 else
199 199 {
200 200 DCB dcbSerialParams = {0};
201 201 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
202 202 GetCommState((HANDLE)fd, &dcbSerialParams);
203 203 dcbSerialParams.BaudRate=rs232cfspeed(BaudeRate);
204 204 dcbSerialParams.ByteSize=ChSize;
205 205 dcbSerialParams.StopBits=privatedecodestop(NbStop);
206 206 dcbSerialParams.Parity=privatedecodeparity(Parity);
207 207 SetCommState((HANDLE)fd, &dcbSerialParams);
208 208 COMMTIMEOUTS timeouts={0};
209 timeouts.ReadIntervalTimeout=100;
210 timeouts.ReadTotalTimeoutConstant=100;
209 timeouts.ReadIntervalTimeout=1;
210 timeouts.ReadTotalTimeoutConstant=10;
211 211 timeouts.ReadTotalTimeoutMultiplier=1;
212 timeouts.WriteTotalTimeoutConstant=100;
213 timeouts.WriteTotalTimeoutMultiplier=10;
212 timeouts.WriteTotalTimeoutConstant=1;
213 timeouts.WriteTotalTimeoutMultiplier=1;
214 214 SetCommTimeouts((HANDLE)fd, &timeouts);
215 215 return rs232noerr;
216 216 }
217 217 }
218 218
219 219 int rs232setbaudrate(rs232port_t fd, int baudrate)
220 220 {
221 221 if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
222 222 {
223 223 return (rs232port_t)badPortValue;
224 224 }
225 225 else
226 226 {
227 227 DCB dcbSerialParams = {0};
228 228 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
229 229 GetCommState((HANDLE)fd, &dcbSerialParams);
230 230 dcbSerialParams.BaudRate=rs232cfspeed(baudrate);
231 231 SetCommState((HANDLE)fd, &dcbSerialParams);
232 232 return rs232noerr;
233 233 }
234 234 }
235 235
236 236 int rs232setparity(rs232port_t fd, rs232parity Parity)
237 237 {
238 238 if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
239 239 {
240 240 return (rs232port_t)badPortValue;
241 241 }
242 242 else
243 243 {
244 244 DCB dcbSerialParams = {0};
245 245 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
246 246 GetCommState((HANDLE)fd, &dcbSerialParams);
247 247 dcbSerialParams.Parity = privatedecodeparity(Parity);
248 248 SetCommState((HANDLE)fd, &dcbSerialParams);
249 249 return rs232noerr;
250 250 }
251 251 }
252 252
253 253 int rs232setnbstop(rs232port_t fd, rs232stop NbStop)
254 254 {
255 255 if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
256 256 {
257 257 return (rs232port_t)badPortValue;
258 258 }
259 259 else
260 260 {
261 261 DCB dcbSerialParams = {0};
262 262 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
263 263 GetCommState((HANDLE)fd, &dcbSerialParams);
264 264 dcbSerialParams.StopBits = privatedecodestop(NbStop);
265 265 SetCommState((HANDLE)fd, &dcbSerialParams);
266 266 return rs232noerr;
267 267 }
268 268 }
269 269
270 270
271 271 int rs232setcsize(rs232port_t fd, int ChSize)
272 272 {
273 273 if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
274 274 {
275 275 return (rs232port_t)badPortValue;
276 276 }
277 277 else
278 278 {
279 279 DCB dcbSerialParams = {0};
280 280 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
281 281 GetCommState((HANDLE)fd, &dcbSerialParams);
282 282 dcbSerialParams.ByteSize = ChSize;
283 283 SetCommState((HANDLE)fd, &dcbSerialParams);
284 284 return rs232noerr;
285 285 }
286 286 }
287 287
288 288
289 289
290 290
291 291
292 292
293 293 int rs232write(rs232port_t fd,char *psWrite, int WriteBufferSize)
294 294 {
295 295
296 296 if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
297 297 {
298 298 return (rs232port_t)badPortValue;
299 299 }
300 300 else
301 301 {
302 302 DWORD dwBytesWriten = 0;
303 303 WriteFile((HANDLE)fd, psWrite, WriteBufferSize, &dwBytesWriten, NULL);
304 304 return dwBytesWriten;
305 305 }
306 306 }
307 307
308 308
309 309 int rs232read(rs232port_t fd,char *psRead, int ReadBufferSize)
310 310 {
311 311
312 312 if (fd == (rs232port_t)INVALID_HANDLE_VALUE)
313 313 {
314 314 return (rs232port_t)badPortValue;
315 315 }
316 316 else
317 317 {
318 318 DWORD dwBytesRead = 0;
319 319 ReadFile((HANDLE)fd, psRead, ReadBufferSize, &dwBytesRead, NULL);
320 320 return dwBytesRead;
321 321 }
322 322
323 323 }
324 324
325 325 int rs232availablebytes(rs232port_t fd)
326 326 {
327 327 DWORD dwErrorFlags;
328 328 COMSTAT ComStat;
329 329 ClearCommError(fd, &dwErrorFlags, &ComStat);
330 330 return((int)ComStat.cbInQue);
331 331 }
332 332
333 333 int rs232saferead(rs232port_t fd,char* data,int count )
334 334 {
335 335 int read=0;
336 336 int i=0;
337 337 for(i=0;i<100;i++)
338 338 {
339 339 read = rs232read(fd,data,count);
340 340 count -=read;
341 341 data+=read;
342 342 if(count==0)
343 343 return rs232noerr;
344 344 }
345 345 return -1;
346 346 }
347 347
348 348
349 349
350 350 int rs232safewrite(rs232port_t fd,char* data,int count)
351 351 {
352 352 int written=0;
353 353 int i=0;
354 354 for(i=0;i<1000;i++)
355 355 {
356 356 written = rs232write(fd,data+written,count);
357 357 count-=written;
358 358 data+=written;
359 359 if(count==0)
360 360 return rs232noerr;
361 361 }
362 362 return -1;
363 363 }
364 364
365 365
366 366 int rs232setRTS(rs232port_t fd)
367 367 {
368 368 if(EscapeCommFunction((HANDLE)fd, CLRRTS))
369 369 return rs232noerr;
370 370 return -1;
371 371 }
372 372
373 373 int rs232clearRTS(rs232port_t fd)
374 374 {
375 375 if(EscapeCommFunction((HANDLE)fd, SETRTS))
376 376 return rs232noerr;
377 377 return -1;
378 378 }
379 379
380 380 int rs232setDTR(rs232port_t fd)
381 381 {
382 382 if(EscapeCommFunction((HANDLE)fd, CLRDTR))
383 383 return rs232noerr;
384 384 return -1;
385 385 }
386 386
387 387
388 388 int rs232clearDTR(rs232port_t fd)
389 389 {
390 390 if(EscapeCommFunction((HANDLE)fd, SETDTR))
391 391 return rs232noerr;
392 392 return -1;
393 393 }
394 394
395 395
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