[Qemu-devel] [6556] fix use of host serial port

[Aurelien Jarno]

Revision: 6556
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6556
Author:   aurel32
Date:     2009-02-08 14:46:17 +0000 (Sun, 08 Feb 2009)

Log Message:
-----------
fix use of host serial port

Signed-off-by: David Ahern <address@hidden>
Acked-by: Stefano Stabellini <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>

Modified Paths:
--------------
    trunk/qemu-char.c

Modified: trunk/qemu-char.c
===================================================================
--- trunk/qemu-char.c   2009-02-08 13:05:12 UTC (rev 6555)
+++ trunk/qemu-char.c   2009-02-08 14:46:17 UTC (rev 6556)
@@ -1047,17 +1047,17 @@
             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 @@
         {
             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);
         }