Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...

[firefly-linux-kernel-4.4.55.git] / include / linux / virtio_console.h

diff --git a/include/linux/virtio_console.h b/include/linux/virtio_console.h
index fe885174cc1f061ef8d0b706a362d27574ca616f..ae4f039515b441f3407d88da1e2172a78bab2e5b 100644 (file)
--- a/include/linux/virtio_console.h
+++ b/include/linux/virtio_console.h
@@ -3,19 +3,45 @@
 #include <linux/types.h>
 #include <linux/virtio_ids.h>
 #include <linux/virtio_config.h>
-/* This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
- * anyone can use the definitions to implement compatible drivers/servers. */
+/*
+ * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
+ * anyone can use the definitions to implement compatible drivers/servers.
+ *
+ * Copyright (C) Red Hat, Inc., 2009, 2010
+ */
 
 /* Feature bits */
 #define VIRTIO_CONSOLE_F_SIZE  0       /* Does host provide console size? */
+#define VIRTIO_CONSOLE_F_MULTIPORT 1   /* Does host provide multiple ports? */
 
 struct virtio_console_config {
        /* colums of the screens */
        __u16 cols;
        /* rows of the screens */
        __u16 rows;
+       /* max. number of ports this device can hold */
+       __u32 max_nr_ports;
+       /* number of ports added so far */
+       __u32 nr_ports;
 } __attribute__((packed));
 
+/*
+ * A message that's passed between the Host and the Guest for a
+ * particular port.
+ */
+struct virtio_console_control {
+       __u32 id;               /* Port number */
+       __u16 event;            /* The kind of control event (see below) */
+       __u16 value;            /* Extra information for the key */
+};
+
+/* Some events for control messages */
+#define VIRTIO_CONSOLE_PORT_READY      0
+#define VIRTIO_CONSOLE_CONSOLE_PORT    1
+#define VIRTIO_CONSOLE_RESIZE          2
+#define VIRTIO_CONSOLE_PORT_OPEN       3
+#define VIRTIO_CONSOLE_PORT_NAME       4
+#define VIRTIO_CONSOLE_PORT_REMOVE     5
 
 #ifdef __KERNEL__
 int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int));