int
awaitkey(int timeout, int tell)
{
struct linux_termios orig_termios, raw_termios;
int c = 0;
int i;
/* set raw mode */
linux_tcgetattr(infd, &orig_termios);
raw_termios = orig_termios;
linux_cfmakeraw(&raw_termios);
linux_tcsetattr(infd, LINUX_TCSETS, &raw_termios);
for (i = timeout; i > 0; i--) {
if (tell) {
char numbuf[20];
int len, j;
sprintf(numbuf, "%d ", i);
len = strlen(numbuf);
for (j = 0; j < len; j++)
numbuf[len + j] = '\b';
numbuf[len + j] = '\0';
printf("%s", numbuf);
}
c = common_getc(infd, 1);
if (c == 0)
c = -1;
if (c >= 0)
break;
}
if (i == 0)
c = '\0';
/* set original mode */
linux_tcsetattr(infd, LINUX_TCSETS, &orig_termios);
if (tell)
printf("0 \n");
return c;
}
void
consinit(int dev, int speed)
{
struct linux_termios termios;
int fd;
switch (dev) {
case CONSDEV_COM0:
iodev = dev;
break;
case CONSDEV_GLASS:
default:
glass_console:
iodev = CONSDEV_GLASS;
break;
}
if (infd >= 0 && infd == outfd) {
uclose(infd);
infd = 0;
outfd = 1;
}
if (iodev == CONSDEV_GLASS) {
infd = 0;
outfd = 1;
strlcpy(bi_cons.devname, "glass", sizeof(bi_cons.devname));
bi_cons.addr = -1;
bi_cons.speed = -1;
} else {
fd = uopen(comdevname[iodev - CONSDEV_COM0], LINUX_O_RDWR);
if (fd < 0)
goto glass_console;
infd = outfd = fd;
/* set speed */
linux_tcgetattr(fd, &termios);
if (linux_cfsetspeed(&termios, speed) < 0) {
speed = 9600;
if (linux_cfsetspeed(&termios, speed) < 0)
goto glass_console;
}
if (linux_tcsetattr(fd, LINUX_TCSETS, &termios) < 0)
goto glass_console;
snprintf(bi_cons.devname, sizeof(bi_cons.devname), "com%d",
iodev - CONSDEV_COM0);
bi_cons.addr = -1;
bi_cons.speed = speed;
}
BI_ADD(&bi_cons, BTINFO_CONSDEV, sizeof(bi_cons));
}
/** Setup the terminal for our use */
static void linux_console_startup(void)
{
struct termios t;
if (linux_tcgetattr(0, &t)) {
DBG("linux_console tcgetattr failed (%s)", linux_strerror(linux_errno));
return;
}
saved_termios = t;
/* Disable canonical mode and echo. Let readline handle that */
t.c_lflag &= ~(ECHO | ICANON);
/* stop ^C from sending a signal */
t.c_cc[VINTR] = 0;
if (linux_tcsetattr(0, TCSAFLUSH, &t))
DBG("linux_console tcsetattr failed (%s)", linux_strerror(linux_errno));
}
/** Restores original terminal attributes on shutdown */
static void linux_console_shutdown(int flags __unused)
{
if (linux_tcsetattr(0, TCSAFLUSH, &saved_termios))
DBG("linux_console tcsetattr failed (%s)", linux_strerror(linux_errno));
}
