serial redirection，redirection
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1 int setOption(int fd,int nSpeed, int nBits, char mode,char nEvent, int nStop)
2 {
3 struct termios newtio;
4 bzero( &newtio, sizeof( newtio ) );
5 newtio.c_cflag |= CLOCAL | CREAD;
6 newtio.c_cflag &= ~CSIZE;
7
8 switch( nBits )
9 {
10 case 7:
11 newtio.c_cflag |= CS7;
12 break;
13 case 8:
14 newtio.c_cflag |= CS8;
15 break;
16 }
17 switch( mode )
18 {
19 case 'S':
20 newtio.c_lflag |= ICANON;
21 newtio.c_lflag |= ECHO;
22 newtio.c_cc[VMIN] = 0;
23 newtio.c_cc[VTIME] = 0;
24 break;
25 case 'N':
26 newtio.c_lflag &= ~ICANON;
27 newtio.c_lflag &= ~ECHO;
28 newtio.c_lflag |= ECHOE;
29 newtio.c_oflag |= ONLCR;
30 newtio.c_oflag |= OPOST;
31 newtio.c_cc[VMIN] = 1;
32 newtio.c_cc[VTIME] = 0;
33 break;
34 case 'M':
35 newtio.c_lflag &= ~ICANON;
36 newtio.c_lflag &= ~ECHO;
37 newtio.c_lflag |= ECHOE;
38 newtio.c_oflag |= ONLCR;
39 newtio.c_oflag |= OPOST;
40 newtio.c_cc[VMIN] = 1;
41 newtio.c_cc[VTIME] = 0;
42 break;
43
44 default:
45 break;
46 }
47 switch( nEvent )
48 {
49 case 'O':
50 newtio.c_cflag |= PARENB;
51 newtio.c_cflag |= PARODD;
52 newtio.c_iflag |= (INPCK | ISTRIP);
53 break;
54 case 'E':
55 newtio.c_iflag |= (INPCK | ISTRIP);
56 newtio.c_cflag |= PARENB;
57 newtio.c_cflag &= ~PARODD;
58 break;
59 case 'N':
60 newtio.c_cflag &= ~PARENB;
61 break;
62 }
63
64 switch( nSpeed )
65 {
66 case 2400:
67 cfsetispeed(&newtio, B2400);
68 cfsetospeed(&newtio, B2400);
69 break;
70 case 4800:
71 cfsetispeed(&newtio, B4800);
72 cfsetospeed(&newtio, B4800);
73 break;
74 case 9600:
75 cfsetispeed(&newtio, B9600);
76 cfsetospeed(&newtio, B9600);
77 break;
78 case 115200:
79 cfsetispeed(&newtio, B115200);
80 cfsetospeed(&newtio, B115200);
81 break;
82 default:
83 cfsetispeed(&newtio, B9600);
84 cfsetospeed(&newtio, B9600);
85 break;
86 }
87 if ( nStop == 1 )
88 {
89 newtio.c_cflag &= ~CSTOPB;
90 }
91 else if ( nStop == 2 )
92 {
93 newtio.c_cflag |= CSTOPB;
94 }
95 tcflush(fd,TCIFLUSH);
96 if ((tcsetattr(fd,TCSANOW,&newtio))!=0)
97 {
98 perror("com set error");
99 return -1;
100 }
101 return 0;
102 }
103
104 void exitBmconsole(int signum)
105 {
106 char muxName[5]={0x00};
107 tcflush(console_fd,TCIFLUSH);
108 tcflush(uart3_fd,TCIFLUSH);
109 resetConsoleConfig();
110
111 dup2(oldstdin,0);
112 dup2(oldstdout,1);
113 close(uart3_fd);
114 close(console_fd);
115 muxClearAll(i2cfd_mux, MUX_SLAVE_ADDR);
116 close(i2cfd_mux);
117
118 sprintf(muxName,"MUX%d",gMuxId);
119 setInUseFlag(muxName,0);
120 exit(0);
121 }
122
123 void *MuxOutputToCom5(void)
124 {
125 int nread;
126 char buff[MAX_BUFF_LEN+1];
127 if ((setOption(uart3_fd,115200,8,'N','N',1))<0)
128 {
129 perror("setOption error");
130 pthread_exit(NULL);
131 }
132 while(1)
133 {
134 memset(buff,0,sizeof(char)*( MAX_BUFF_LEN + 1 ));
135 nread = 0;
136 nread = read(uart3_fd,buff,MAX_BUFF_LEN);
137 if (nread >0)
138 {
139 if(buff[0] == 10 && buff[1] == 10)
140 {
141 write(console_fd,&buff[1],nread);
142 }
143 else
144 {
145 write(console_fd,buff,nread);
146 }
147 }
148 }
149
150 pthread_exit(NULL);
151 }
152
153 void *Com5InputToMux(void)
154 {
155 int nread,result;
156 char buff[MAX_BUFF_LEN+1];
157 char inputBuff[TEMP_ST_LEN+1];
158 int inputNumber = 0;
159 FILE *stream;
160 int recievExitFlag = 0;
161
162 if ((stream= freopen("/usr/std.in","w+",stdin)) == NULL)
163 {
164 printf("freopen stdin fail\n");
165 kill(getpid(),SIGINT);
166 }
167 if ((stream = freopen("/usr/std.out","w+",stdout))== NULL)
168 {
169 printf("freopen stdout fail\n");
170 kill(getpid(),SIGINT);
171 }
172 if ((result = setOption(console_fd,115200,8,'M','N',1))<0)
173 {
174 perror("set console_fd opt error");
175 kill(getpid(),SIGINT);
176 }
177 memset(inputBuff,0,sizeof(char)*( TEMP_ST_LEN+1 ));
178
179 while(1)
180 {
181 memset(buff,0,sizeof(char)*( MAX_BUFF_LEN +1 ));
182
183 nread = read(console_fd,buff,MAX_BUFF_LEN);
184 if (nread > 0)
185 {
186 if( recievExitFlag == 1)
187 {
188 if( (nread != 1) || (inputNumber == 1 && nread == 1 && buff[0] != LOWER_Q_ASCII) || ( inputNumber == 2 && nread == 1 && buff[0] != CR_ASCII) )
189 {
190 inputNumber = 0;
191 recievExitFlag = 0;
192 memset(inputBuff,0,sizeof(char)*TEMP_ST_LEN);
193 }
194 }
195 if (nread == 1)
196 {
197 if (buff[0] == CR_ASCII)
198 {
199 if (inputNumber == 0x02 && inputBuff[0] == QUIT_IDENTIFY_ASCII && inputBuff[1] == LOWER_Q_ASCII)/*quit bmconsole*/
200 {
201 exitBmconsole(0);
202 }
203 memset(inputBuff,0,sizeof(char)*TEMP_ST_LEN);
204 inputNumber = 0;
205 recievExitFlag = 0;
206 }
207 if (inputNumber > MAX_BUFF_LEN)
208 {
209 memset(inputBuff,0,sizeof(char)*TEMP_ST_LEN);
210 inputNumber = 0;
211 }
212 if ( buff[0] == QUIT_IDENTIFY_ASCII )
213 {
214 recievExitFlag = 1;
215 }
216 if ( recievExitFlag == 1)
217 {
218 inputBuff[inputNumber++] = buff[0];
219 }
220 }
221 if (recievExitFlag != 1)
222 {
223 write(uart3_fd,buff,nread);
224 }
225 }
226 }
227 pthread_exit(NULL);
228 }
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