FreeCalypso > hg > freecalypso-sw
annotate rvinterf/lowlevel/openport.c @ 372:47391b5c15ff
os_mem_fl.c: os_MemoryInformation() done
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
---|---|
date | Sun, 01 Jun 2014 00:09:52 +0000 |
parents | f42854da4563 |
children |
rev | line source |
---|---|
173
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
1 /* |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
2 * This module takes care of opening the serial port and setting the |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
3 * proper "raw" termios modes, including the baud rate. |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
4 */ |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
5 |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
6 #include <sys/types.h> |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
7 #include <sys/file.h> |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
8 #include <sys/ioctl.h> |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
9 #include <termios.h> |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
10 #include <stdio.h> |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
11 #include <stdlib.h> |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
12 #include <string.h> |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
13 #include <strings.h> |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
14 #include <unistd.h> |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
15 |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
16 int target_fd; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
17 char *baudrate_name = "115200"; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
18 |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
19 static struct baudrate { |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
20 char *name; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
21 speed_t termios_code; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
22 } baud_rate_table[] = { |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
23 {"19200", B19200}, |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
24 {"38400", B38400}, |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
25 {"57600", B57600}, |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
26 {"115200", B115200}, |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
27 /* non-standard high baud rates "remapped" by CP2102 usb2serial IC */ |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
28 {"203125", B230400}, |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
29 {"406250", B460800}, |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
30 {"812500", B921600}, |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
31 /* table search terminator */ |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
32 {NULL, B0} |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
33 }; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
34 |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
35 static speed_t |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
36 get_baud_rate() |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
37 { |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
38 struct baudrate *br; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
39 |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
40 for (br = baud_rate_table; br->name; br++) |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
41 if (!strcmp(br->name, baudrate_name)) |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
42 break; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
43 if (!br->name) { |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
44 fprintf(stderr, "baud rate \"%s\" unknown/unsupported\n", |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
45 baudrate_name); |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
46 exit(1); |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
47 } |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
48 return br->termios_code; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
49 } |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
50 |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
51 open_target_serial(ttydev) |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
52 char *ttydev; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
53 { |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
54 struct termios target_termios; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
55 speed_t br_code; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
56 |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
57 br_code = get_baud_rate(); |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
58 target_fd = open(ttydev, O_RDWR|O_NONBLOCK); |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
59 if (target_fd < 0) { |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
60 perror(ttydev); |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
61 exit(1); |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
62 } |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
63 target_termios.c_iflag = IGNBRK; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
64 target_termios.c_oflag = 0; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
65 target_termios.c_cflag = CLOCAL|HUPCL|CREAD|CS8; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
66 target_termios.c_lflag = 0; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
67 target_termios.c_cc[VMIN] = 1; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
68 target_termios.c_cc[VTIME] = 0; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
69 cfsetispeed(&target_termios, br_code); |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
70 cfsetospeed(&target_termios, br_code); |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
71 if (tcsetattr(target_fd, TCSAFLUSH, &target_termios) < 0) { |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
72 perror("initial tcsetattr on target"); |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
73 exit(1); |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
74 } |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
75 return 0; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
76 } |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
77 |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
78 set_serial_nonblock(state) |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
79 int state; |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
80 { |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
81 ioctl(target_fd, FIONBIO, &state); |
f42854da4563
rvinterf: beginning of refactoring
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
82 } |