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Finish serial_set_params implementation 

Adds the most common baud rates and support bits, parity, stopbits
and flocontrol settings.
This commit is contained in:
Daniel Ribeiro 2011-01-10 02:21:07 -02:00
parent 1437e8934b
commit 1ff7712c93
1 changed files with 71 additions and 8 deletions
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79
hardware/common/serial.c
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@ -124,7 +124,10 @@ void serial_restore_params(int fd, void *backup)
#endif
}
/* flowcontrol 1 = rts/cts 2 = xon/xoff */
/*
* flowcontrol 1 = rts/cts 2 = xon/xoff
* parity 0 = none, 1 = even, 2 = odd
*/
int serial_set_params(int fd, int speed, int bits, int parity, int stopbits,
int flowcontrol)
{
@ -165,21 +168,81 @@ int serial_set_params(int fd, int speed, int bits, int parity, int stopbits,
}
#else
struct termios term;
speed_t baud;
/* Only supporting what we need really, currently the OLS driver. */
if (speed != 115200 || bits != 8 || parity != 0 || stopbits != 1
|| flowcontrol != 2)
switch (speed) {
case 9600:
baud = B9600;
break;
case 38400:
baud = B38400;
break;
case 57600:
baud = B57600;
break;
case 115200:
baud = B115200;
break;
case 460800:
baud = B460800;
break;
default:
return SIGROK_ERR;
}
if (tcgetattr(fd, &term) < 0)
return SIGROK_ERR;
if (cfsetispeed(&term, B115200) < 0)
if (cfsetispeed(&term, baud) < 0)
return SIGROK_ERR;
term.c_cflag &= ~CSIZE;
term.c_cflag |= CS8;
switch (bits) {
case 8:
term.c_cflag |= CS8;
break;
case 7:
term.c_cflag |= CS7;
break;
default:
return SIGROK_ERR;
}
term.c_cflag &= ~CSTOPB;
term.c_cflag |= IXON | IXOFF;
term.c_iflag |= IGNPAR;
switch (stopbits) {
case 1:
break;
case 2:
term.c_cflag |= CSTOPB;
default:
return SIGROK_ERR;
}
term.c_cflag &= ~(IXON | IXOFF | CRTSCTS);
switch (flowcontrol) {
case 2:
term.c_cflag |= IXON | IXOFF;
break;
case 1:
term.c_cflag |= CRTSCTS;
default:
return SIGROK_ERR;
}
term.c_iflag &= ~(IGNPAR | PARODD | PARENB);
switch (parity) {
case 0:
term.c_iflag |= IGNPAR;
break;
case 1:
term.c_iflag |= PARENB;
break;
case 2:
term.c_iflag |= PARENB | PARODD;
break;
default:
return SIGROK_ERR;
}
if (tcsetattr(fd, TCSADRAIN, &term) < 0)
return SIGROK_ERR;
#endif