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authoraurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>2009-02-08 14:46:17 +0000
committeraurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>2009-02-08 14:46:17 +0000
commitb4abdfa4fbf4afaa7540ddaf814236e7844935ff (patch)
tree9a850c97d8a8ec7952e157505f7ec073e2375b2b /qemu-char.c
parent77f0435ece5fbf4da304e0f9822e4a3fab8d6fa5 (diff)
fix use of host serial port
Signed-off-by: David Ahern <daahern@cisco.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6556 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'qemu-char.c')
-rw-r--r--qemu-char.c27
1 files changed, 19 insertions, 8 deletions
diff --git a/qemu-char.c b/qemu-char.c
index 6e10c67b36..5110833113 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -1047,17 +1047,17 @@ static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
int *targ = (int *)arg;
ioctl(s->fd_in, TIOCMGET, &sarg);
*targ = 0;
- if (sarg | TIOCM_CTS)
+ if (sarg & TIOCM_CTS)
*targ |= CHR_TIOCM_CTS;
- if (sarg | TIOCM_CAR)
+ if (sarg & TIOCM_CAR)
*targ |= CHR_TIOCM_CAR;
- if (sarg | TIOCM_DSR)
+ if (sarg & TIOCM_DSR)
*targ |= CHR_TIOCM_DSR;
- if (sarg | TIOCM_RI)
+ if (sarg & TIOCM_RI)
*targ |= CHR_TIOCM_RI;
- if (sarg | TIOCM_DTR)
+ if (sarg & TIOCM_DTR)
*targ |= CHR_TIOCM_DTR;
- if (sarg | TIOCM_RTS)
+ if (sarg & TIOCM_RTS)
*targ |= CHR_TIOCM_RTS;
}
break;
@@ -1065,9 +1065,20 @@ static int tty_serial_ioctl(CharDriverState *chr, int cmd, void *arg)
{
int sarg = *(int *)arg;
int targ = 0;
- if (sarg | CHR_TIOCM_DTR)
+ ioctl(s->fd_in, TIOCMGET, &targ);
+ targ &= ~(CHR_TIOCM_CTS | CHR_TIOCM_CAR | CHR_TIOCM_DSR
+ | CHR_TIOCM_RI | CHR_TIOCM_DTR | CHR_TIOCM_RTS);
+ if (sarg & CHR_TIOCM_CTS)
+ targ |= TIOCM_CTS;
+ if (sarg & CHR_TIOCM_CAR)
+ targ |= TIOCM_CAR;
+ if (sarg & CHR_TIOCM_DSR)
+ targ |= TIOCM_DSR;
+ if (sarg & CHR_TIOCM_RI)
+ targ |= TIOCM_RI;
+ if (sarg & CHR_TIOCM_DTR)
targ |= TIOCM_DTR;
- if (sarg | CHR_TIOCM_RTS)
+ if (sarg & CHR_TIOCM_RTS)
targ |= TIOCM_RTS;
ioctl(s->fd_in, TIOCMSET, &targ);
}