diff options
Diffstat (limited to 'include/linux/virtio_console.h')
| -rw-r--r-- | include/linux/virtio_console.h | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/include/linux/virtio_console.h b/include/linux/virtio_console.h index fe885174cc1..ae4f039515b 100644 --- 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)); |