53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
#ifndef _LINUX_VIRTIO_CONSOLE_H
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#define _LINUX_VIRTIO_CONSOLE_H
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#include <linux/types.h>
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#include <linux/virtio_ids.h>
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#include <linux/virtio_config.h>
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/*
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* This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
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* anyone can use the definitions to implement compatible drivers/servers.
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*
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* Copyright (C) Red Hat, Inc., 2009, 2010
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*/
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/* Feature bits */
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#define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */
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#define VIRTIO_CONSOLE_F_MULTIPORT 1 /* Does host provide multiple ports? */
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#define VIRTIO_CONSOLE_BAD_ID (~(u32)0)
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struct virtio_console_config {
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/* colums of the screens */
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__u16 cols;
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/* rows of the screens */
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__u16 rows;
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/* max. number of ports this device can hold */
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__u32 max_nr_ports;
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} __attribute__((packed));
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/*
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* A message that's passed between the Host and the Guest for a
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* particular port.
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*/
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struct virtio_console_control {
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__u32 id; /* Port number */
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__u16 event; /* The kind of control event (see below) */
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__u16 value; /* Extra information for the key */
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};
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/* Some events for control messages */
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#define VIRTIO_CONSOLE_DEVICE_READY 0
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#define VIRTIO_CONSOLE_PORT_ADD 1
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#define VIRTIO_CONSOLE_PORT_REMOVE 2
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#define VIRTIO_CONSOLE_PORT_READY 3
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#define VIRTIO_CONSOLE_CONSOLE_PORT 4
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#define VIRTIO_CONSOLE_RESIZE 5
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#define VIRTIO_CONSOLE_PORT_OPEN 6
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#define VIRTIO_CONSOLE_PORT_NAME 7
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#ifdef __KERNEL__
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int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int));
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#endif /* __KERNEL__ */
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#endif /* _LINUX_VIRTIO_CONSOLE_H */
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