commit 88a946d32dd9e4c6c0ad56e19f2822bd5c8b416e
author Gerd Hoffmann <kraxel@redhat.com> Thu Jan 10 14:20:58 2013 +0100
committer Gerd Hoffmann <kraxel@redhat.com> Wed Jan 16 06:58:54 2013 +0100
tree 47605f4a6fe0b1ac8d1133c9d603a2572edcab1e
parent d59044ef74d577797d087bc6ffb156cec89ed39a

chardev: add parallel chardev support to chardev-add (qmp)

Also alias the old parport name to parallel for -chardev.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

qemu-char.c

diff --git a/qemu-char.c b/qemu-char.c
index 8398398..7091e05 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -1367,17 +1367,10 @@
     qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
 }
 
-static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_pp_fd(int fd)
 {
-    const char *filename = qemu_opt_get(opts, "path");
     CharDriverState *chr;
     ParallelCharDriver *drv;
-    int fd;
-
-    TFR(fd = qemu_open(filename, O_RDWR));
-    if (fd < 0) {
-        return NULL;
-    }
 
     if (ioctl(fd, PPCLAIM) < 0) {
         close(fd);
@@ -1441,16 +1434,9 @@
     return 0;
 }
 
-static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
+static CharDriverState *qemu_chr_open_pp_fd(int fd)
 {
-    const char *filename = qemu_opt_get(opts, "path");
     CharDriverState *chr;
-    int fd;
-
-    fd = qemu_open(filename, O_RDWR);
-    if (fd < 0) {
-        return NULL;
-    }
 
     chr = g_malloc0(sizeof(CharDriverState));
     chr->opaque = (void *)(intptr_t)fd;
@@ -2750,6 +2736,22 @@
     return NULL;
 }
 
+#ifdef HAVE_CHARDEV_PARPORT
+
+static CharDriverState *qemu_chr_open_pp(QemuOpts *opts)
+{
+    const char *filename = qemu_opt_get(opts, "path");
+    int fd;
+
+    fd = qemu_open(filename, O_RDWR);
+    if (fd < 0) {
+        return NULL;
+    }
+    return qemu_chr_open_pp_fd(fd);
+}
+
+#endif
+
 static const struct {
     const char *name;
     CharDriverState *(*open)(QemuOpts *opts);
@@ -2779,6 +2781,7 @@
     { .name = "pty",       .open = qemu_chr_open_pty },
 #endif
 #ifdef HAVE_CHARDEV_PARPORT
+    { .name = "parallel",  .open = qemu_chr_open_pp },
     { .name = "parport",   .open = qemu_chr_open_pp },
 #endif
 #ifdef CONFIG_SPICE
@@ -3104,6 +3107,15 @@
         socket_set_nonblock(fd);
         return qemu_chr_open_tty_fd(fd);
 #endif
+#ifdef HAVE_CHARDEV_PARPORT
+    case CHARDEV_PORT_KIND_PARALLEL:
+        flags = O_RDWR;
+        fd = qmp_chardev_open_file_source(port->device, flags, errp);
+        if (error_is_set(errp)) {
+            return NULL;
+        }
+        return qemu_chr_open_pp_fd(fd);
+#endif
     default:
         error_setg(errp, "unknown chardev port (%d)", port->type);
         return NULL;