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include/linux/virtio_console.h
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#ifndef _LINUX_VIRTIO_CONSOLE_H #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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/* * 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: * * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of IBM nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. |
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* |
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* Copyright (C) Red Hat, Inc., 2009, 2010, 2011 * Copyright (C) Amit Shah <amit.shah@redhat.com>, 2009, 2010, 2011 |
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*/ |
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/* Feature bits */ #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 { /* colums of the screens */ __u16 cols; /* rows of the screens */ __u16 rows; |
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/* max. number of ports this device can hold */ __u32 max_nr_ports; |
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} __attribute__((packed)); |
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/* * 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 */ |
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#define VIRTIO_CONSOLE_DEVICE_READY 0 #define VIRTIO_CONSOLE_PORT_ADD 1 #define VIRTIO_CONSOLE_PORT_REMOVE 2 #define VIRTIO_CONSOLE_PORT_READY 3 #define VIRTIO_CONSOLE_CONSOLE_PORT 4 #define VIRTIO_CONSOLE_RESIZE 5 #define VIRTIO_CONSOLE_PORT_OPEN 6 #define VIRTIO_CONSOLE_PORT_NAME 7 |
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#ifdef __KERNEL__ int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int)); #endif /* __KERNEL__ */ #endif /* _LINUX_VIRTIO_CONSOLE_H */ |