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Varoious code improvements and bugfixes

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This commit is contained in:
Luka Miljak 2014-01-10 09:18:45 +00:00
parent 6ec15f77c4
commit 1a729bd46a
4 changed files with 33 additions and 9 deletions
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28
tty.c
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@ -22,6 +22,11 @@ int tty_open(struct tty_t *tty_dev) {
else
tty_dev->fd = fd;
/* store default termios setitngs */
if (tcgetattr(tty_dev->fd, &(tty_dev->ttysetdef)))
fprintf(stderr, "[%s] error reading device default config\n"
"\t\t-> default config will not be restored upon exit", __func__);
tty_dev->ttyset.c_iflag &= ~(IGNBRK | BRKINT | ICRNL | INLCR |
PARMRK | INPCK | ISTRIP | IXON);
tty_dev->ttyset.c_oflag &= ~(OCRNL | ONLCR | ONLRET |
@ -35,17 +40,17 @@ int tty_open(struct tty_t *tty_dev) {
/* if speed is set to B0 (e.g. cfg file is not provided), default values are used */
if (cfgetispeed(&(tty_dev->ttyset)) == baud_to_speed(0) &&
cfsetispeed(&(tty_dev->ttyset), TTY_DEF_BAUD_RATE) < 0) {
fprintf(stderr, "[%s] error configuring tty device speed\n", NAME);
fprintf(stderr, "[%s] error configuring tty device speed\n", __func__);
return -errno;
}
if (cfgetospeed(&(tty_dev->ttyset)) == baud_to_speed(0) &&
cfsetospeed(&(tty_dev->ttyset), TTY_DEF_BAUD_RATE) < 0) {
fprintf(stderr, "[%s] error configuring tty device speed\n", NAME);
fprintf(stderr, "[%s] error configuring tty device speed\n", __func__);
return -errno;
}
if(tcsetattr(tty_dev->fd, TCSAFLUSH, &(tty_dev->ttyset)) < 0) {
fprintf(stderr, "[%s] error configuring tty device\n", NAME);
if (tcsetattr(tty_dev->fd, TCSANOW, &(tty_dev->ttyset)) < 0) {
fprintf(stderr, "[%s] error configuring tty device\n", __func__);
return -errno;
}
@ -55,7 +60,20 @@ int tty_open(struct tty_t *tty_dev) {
/* Closes the tty device. */
int tty_close(struct tty_t *tty_dev) {
// close and set "tty_dev.fd = -1"
int fd = tty_dev->fd;
tty_dev->fd = -1;
fprintf(stderr, "[%s] closing tty device \n", __func__);
if (tcsetattr(tty_dev->fd, TCSANOW, &(tty_dev->ttysetdef)) < 0) {
fprintf(stderr, "[%s] error restorting tty device default config\n", __func__);
return -errno;
}
if (close(fd) < 0)
return -errno;
return 0;
}