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Inverted RTS CTS signals.
jeandet@PC-DE-JEANDET.lab-lpp.local -
r29:916974002380 alexis
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1 #include "rs232config.h"
1 #include "rs232config.h"
2 #include <stdio.h>
2 #include <stdio.h>
3 #include <unistd.h>
3 #include <unistd.h>
4 #include <fcntl.h>
4 #include <fcntl.h>
5 #include <string.h>
5 #include <string.h>
6 #include <errno.h>
6 #include <errno.h>
7
7
8 #ifdef HAVE_WINDOWS_H
8 #ifdef HAVE_WINDOWS_H
9 #include <windows.h>
9 #include <windows.h>
10 #endif
10 #endif
11 #include "RS232.h"
11 #include "RS232.h"
12
12
13 #ifdef HAVE_WINDOWS_H
13 #ifdef HAVE_WINDOWS_H
14
14
15
15
16
16
17
17
18 rs232speed_t rs232cfspeed(unsigned int BaudeRate)
18 rs232speed_t rs232cfspeed(unsigned int BaudeRate)
19 {
19 {
20
20
21 if(BaudeRate<123)
21 if(BaudeRate<123)
22 return CBR_110;
22 return CBR_110;
23
23
24 if(BaudeRate<450)
24 if(BaudeRate<450)
25 return CBR_300;
25 return CBR_300;
26
26
27 if(BaudeRate<900)
27 if(BaudeRate<900)
28 return CBR_600;
28 return CBR_600;
29
29
30 if(BaudeRate<1500)
30 if(BaudeRate<1500)
31 return CBR_1200;
31 return CBR_1200;
32
32
33 if(BaudeRate<3600)
33 if(BaudeRate<3600)
34 return CBR_2400;
34 return CBR_2400;
35
35
36 if(BaudeRate<7200)
36 if(BaudeRate<7200)
37 return CBR_4800;
37 return CBR_4800;
38
38
39 if(BaudeRate<14000)
39 if(BaudeRate<14000)
40 return CBR_9600;
40 return CBR_9600;
41
41
42 if(BaudeRate<16800)
42 if(BaudeRate<16800)
43 return CBR_14400;
43 return CBR_14400;
44
44
45 if(BaudeRate<28800)
45 if(BaudeRate<28800)
46 return CBR_19200;
46 return CBR_19200;
47
47
48 if(BaudeRate<48000)
48 if(BaudeRate<48000)
49 return CBR_38400;
49 return CBR_38400;
50
50
51 if(BaudeRate<86400)
51 if(BaudeRate<86400)
52 return CBR_57600;
52 return CBR_57600;
53
53
54 if(BaudeRate<172800)
54 if(BaudeRate<172800)
55 return CBR_115200;
55 return CBR_115200;
56 else
56 else
57 return CBR_256000;
57 return CBR_256000;
58 }
58 }
59
59
60
60
61 rs232port_t rs232open(char* psPortName)
61 rs232port_t rs232open(char* psPortName)
62 {
62 {
63 rs232port_t fd;
63 rs232port_t fd;
64 fd = CreateFile(psPortName,GENERIC_READ | GENERIC_WRITE,0,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
64 fd = CreateFile(psPortName,GENERIC_READ | GENERIC_WRITE,0,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
65 return fd;
65 return fd;
66 }
66 }
67
67
68 int rs232close(rs232port_t fd)
68 int rs232close(rs232port_t fd)
69 {
69 {
70 if (fd == badPortValue)
70 if (fd == badPortValue)
71 {
71 {
72 return -1;
72 return -1;
73 }
73 }
74 else
74 else
75 {
75 {
76 CloseHandle(fd);
76 CloseHandle(fd);
77 return 0;
77 return 0;
78 }
78 }
79 }
79 }
80
80
81 int rs232setup(rs232port_t fd, int ChSize, int BaudeRate, rs232parity Parity, rs232stop NbStop)
81 int rs232setup(rs232port_t fd, int ChSize, int BaudeRate, rs232parity Parity, rs232stop NbStop)
82 {
82 {
83 if (fd == badPortValue)
83 if (fd == badPortValue)
84 {
84 {
85 return -1;
85 return -1;
86 }
86 }
87 else
87 else
88 {
88 {
89 DCB dcbSerialParams = {0};
89 DCB dcbSerialParams = {0};
90 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
90 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
91 GetCommState(fd, &dcbSerialParams);
91 GetCommState(fd, &dcbSerialParams);
92 dcbSerialParams.BaudRate=rs232cfspeed(BaudeRate);
92 dcbSerialParams.BaudRate=rs232cfspeed(BaudeRate);
93 dcbSerialParams.ByteSize=ChSize;
93 dcbSerialParams.ByteSize=ChSize;
94 dcbSerialParams.StopBits=NbStop;
94 dcbSerialParams.StopBits=NbStop;
95 dcbSerialParams.Parity=Parity;
95 dcbSerialParams.Parity=Parity;
96 SetCommState(fd, &dcbSerialParams);
96 SetCommState(fd, &dcbSerialParams);
97 COMMTIMEOUTS timeouts={0};
97 COMMTIMEOUTS timeouts={0};
98 timeouts.ReadIntervalTimeout=10;
98 timeouts.ReadIntervalTimeout=100;
99 timeouts.ReadTotalTimeoutConstant=10;
99 timeouts.ReadTotalTimeoutConstant=100;
100 timeouts.ReadTotalTimeoutMultiplier=1;
100 timeouts.ReadTotalTimeoutMultiplier=1;
101 timeouts.WriteTotalTimeoutConstant=50;
101 timeouts.WriteTotalTimeoutConstant=100;
102 timeouts.WriteTotalTimeoutMultiplier=10;
102 timeouts.WriteTotalTimeoutMultiplier=10;
103 SetCommTimeouts(fd, &timeouts);
103 SetCommTimeouts(fd, &timeouts);
104 return 0;
104 return 0;
105 }
105 }
106 }
106 }
107
107
108 int rs232setbaudrate(rs232port_t fd, int baudrate)
108 int rs232setbaudrate(rs232port_t fd, int baudrate)
109 {
109 {
110 if (fd == badPortValue)
110 if (fd == badPortValue)
111 {
111 {
112 return -1;
112 return -1;
113 }
113 }
114 else
114 else
115 {
115 {
116 DCB dcbSerialParams = {0};
116 DCB dcbSerialParams = {0};
117 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
117 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
118 GetCommState(fd, &dcbSerialParams);
118 GetCommState(fd, &dcbSerialParams);
119 dcbSerialParams.BaudRate=rs232cfspeed(baudrate);
119 dcbSerialParams.BaudRate=rs232cfspeed(baudrate);
120 SetCommState(fd, &dcbSerialParams);
120 SetCommState(fd, &dcbSerialParams);
121 return 0;
121 return 0;
122 }
122 }
123 }
123 }
124
124
125 int rs232setparity(rs232port_t fd, rs232parity Parity)
125 int rs232setparity(rs232port_t fd, rs232parity Parity)
126 {
126 {
127 if (fd == badPortValue)
127 if (fd == badPortValue)
128 {
128 {
129 return -1;
129 return -1;
130 }
130 }
131 else
131 else
132 {
132 {
133 DCB dcbSerialParams = {0};
133 DCB dcbSerialParams = {0};
134 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
134 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
135 GetCommState(fd, &dcbSerialParams);
135 GetCommState(fd, &dcbSerialParams);
136 dcbSerialParams.Parity = Parity;
136 dcbSerialParams.Parity = Parity;
137 SetCommState(fd, &dcbSerialParams);
137 SetCommState(fd, &dcbSerialParams);
138 return 0;
138 return 0;
139 }
139 }
140 }
140 }
141
141
142 int rs232setnbstop(rs232port_t fd, rs232stop NbStop)
142 int rs232setnbstop(rs232port_t fd, rs232stop NbStop)
143 {
143 {
144 if (fd == badPortValue)
144 if (fd == badPortValue)
145 {
145 {
146 return -1;
146 return -1;
147 }
147 }
148 else
148 else
149 {
149 {
150 DCB dcbSerialParams = {0};
150 DCB dcbSerialParams = {0};
151 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
151 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
152 GetCommState(fd, &dcbSerialParams);
152 GetCommState(fd, &dcbSerialParams);
153 switch(NbStop)
153 switch(NbStop)
154 {
154 {
155 case 2:
155 case 2:
156 dcbSerialParams.StopBits = 2;
156 dcbSerialParams.StopBits = 2;
157 break;
157 break;
158 default:
158 default:
159 dcbSerialParams.StopBits = 1;
159 dcbSerialParams.StopBits = 1;
160 break;
160 break;
161 }
161 }
162 SetCommState(fd, &dcbSerialParams);
162 SetCommState(fd, &dcbSerialParams);
163 return 0;
163 return 0;
164 }
164 }
165 }
165 }
166
166
167
167
168 int rs232setcsize(rs232port_t fd, int ChSize)
168 int rs232setcsize(rs232port_t fd, int ChSize)
169 {
169 {
170 if (fd == badPortValue)
170 if (fd == badPortValue)
171 {
171 {
172 return -1;
172 return -1;
173 }
173 }
174 else
174 else
175 {
175 {
176 DCB dcbSerialParams = {0};
176 DCB dcbSerialParams = {0};
177 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
177 dcbSerialParams.DCBlength=sizeof(dcbSerialParams);
178 GetCommState(fd, &dcbSerialParams);
178 GetCommState(fd, &dcbSerialParams);
179 dcbSerialParams.ByteSize = ChSize;
179 dcbSerialParams.ByteSize = ChSize;
180 SetCommState(fd, &dcbSerialParams);
180 SetCommState(fd, &dcbSerialParams);
181 return 0;
181 return 0;
182 }
182 }
183 }
183 }
184
184
185
185
186
186
187
187
188
188
189
189
190 int rs232write(rs232port_t fd,char *psWrite, int WriteBufferSize)
190 int rs232write(rs232port_t fd,char *psWrite, int WriteBufferSize)
191 {
191 {
192
192
193 if (fd == badPortValue)
193 if (fd == badPortValue)
194 {
194 {
195 return -1;
195 return -1;
196 }
196 }
197 else
197 else
198 {
198 {
199 DWORD dwBytesWriten = 0;
199 DWORD dwBytesWriten = 0;
200 WriteFile(fd, psWrite, WriteBufferSize, &dwBytesWriten, NULL);
200 WriteFile(fd, psWrite, WriteBufferSize, &dwBytesWriten, NULL);
201 return dwBytesWriten;
201 return dwBytesWriten;
202 }
202 }
203 }
203 }
204
204
205
205
206 int rs232read(rs232port_t fd,char *psRead, int ReadBufferSize)
206 int rs232read(rs232port_t fd,char *psRead, int ReadBufferSize)
207 {
207 {
208
208
209 if (fd == badPortValue)
209 if (fd == badPortValue)
210 {
210 {
211 return -1;
211 return -1;
212 }
212 }
213 else
213 else
214 {
214 {
215 DWORD dwBytesRead = 0;
215 DWORD dwBytesRead = 0;
216 ReadFile(fd, psRead, ReadBufferSize, &dwBytesRead, NULL);
216 ReadFile(fd, psRead, ReadBufferSize, &dwBytesRead, NULL);
217 return dwBytesRead;
217 return dwBytesRead;
218 }
218 }
219
219
220 }
220 }
221
221
222
222
223 int rs232saferead(rs232port_t fd,char* data,int count )
223 int rs232saferead(rs232port_t fd,char* data,int count )
224 {
224 {
225 int read=0;
225 int read=0;
226 int i=0;
226 int i=0;
227 for(i=0;i<100;i++)
227 for(i=0;i<100;i++)
228 {
228 {
229 read = rs232read(fd,data,count);
229 read = rs232read(fd,data,count);
230 count -=read;
230 count -=read;
231 data+=read;
231 data+=read;
232 if(count==0)
232 if(count==0)
233 return 0;
233 return 0;
234 }
234 }
235 return -1;
235 return -1;
236 }
236 }
237
237
238
238
239
239
240 int rs232safewrite(rs232port_t fd,char* data,int count)
240 int rs232safewrite(rs232port_t fd,char* data,int count)
241 {
241 {
242 int written=0;
242 int written=0;
243 int i=0;
243 int i=0;
244 for(i=0;i<1000;i++)
244 for(i=0;i<1000;i++)
245 {
245 {
246 written = rs232write(fd,data+written,count);
246 written = rs232write(fd,data+written,count);
247 count-=written;
247 count-=written;
248 data+=written;
248 data+=written;
249 if(count==0)
249 if(count==0)
250 return 0;
250 return 0;
251 }
251 }
252 return -1;
252 return -1;
253 }
253 }
254
254
255
255
256 int rs232setRTS(rs232port_t fd)
256 int rs232setRTS(rs232port_t fd)
257 {
257 {
258 if(EscapeCommFunction(fd, SETRTS))
258 if(EscapeCommFunction(fd, CLRRTS))
259 return 0;
259 return 0;
260 return -1;
260 return -1;
261 }
261 }
262
262
263 int rs232clearRTS(rs232port_t fd)
263 int rs232clearRTS(rs232port_t fd)
264 {
264 {
265 if(EscapeCommFunction(fd, CLRRTS))
265 if(EscapeCommFunction(fd, SETRTS))
266 return 0;
266 return 0;
267 return -1;
267 return -1;
268 }
268 }
269
269
270 int rs232setDTR(rs232port_t fd)
270 int rs232setDTR(rs232port_t fd)
271 {
271 {
272 if(EscapeCommFunction(fd, SETDTR))
272 if(EscapeCommFunction(fd, CLRDTR))
273 return 0;
273 return 0;
274 return -1;
274 return -1;
275 }
275 }
276
276
277
277
278 int rs232clearDTR(rs232port_t fd)
278 int rs232clearDTR(rs232port_t fd)
279 {
279 {
280 if(EscapeCommFunction(fd, CLRDTR))
280 if(EscapeCommFunction(fd, SETDTR))
281 return 0;
281 return 0;
282 return -1;
282 return -1;
283 }
283 }
284
284
285
286
287 #endif //#ifdef HAVE_WINDOWS_H
285 #endif //#ifdef HAVE_WINDOWS_H
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