6f744ddee4
Support for the multiport feature is mostly implemented, but currently disabled due to some potential races in the hot plug code paths. Requested by: marcel MFC after: 1 month Relnotes: yes
76 lines
2.9 KiB
C
76 lines
2.9 KiB
C
/*-
|
|
* This header is BSD licensed so 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.
|
|
*
|
|
* Copyright (C) Red Hat, Inc., 2009, 2010, 2011
|
|
* Copyright (C) Amit Shah <amit.shah@redhat.com>, 2009, 2010, 2011
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _VIRTIO_CONSOLE_H
|
|
#define _VIRTIO_CONSOLE_H
|
|
|
|
/* Feature bits */
|
|
#define VIRTIO_CONSOLE_F_SIZE 0x01 /* Console size */
|
|
#define VIRTIO_CONSOLE_F_MULTIPORT 0x02 /* Multiple ports */
|
|
#define VIRTIO_CONSOLE_F_EMERG_WRITE 0x04 /* Emergency write */
|
|
|
|
#define VIRTIO_CONSOLE_BAD_ID (~(uint32_t)0)
|
|
|
|
struct virtio_console_config {
|
|
/* colums of the screens */
|
|
uint16_t cols;
|
|
/* rows of the screens */
|
|
uint16_t rows;
|
|
/* max. number of ports this device can hold */
|
|
uint32_t max_nr_ports;
|
|
/* emergency write register */
|
|
uint32_t emerg_wr;
|
|
} __packed;
|
|
|
|
/*
|
|
* A message that's passed between the Host and the Guest for a
|
|
* particular port.
|
|
*/
|
|
struct virtio_console_control {
|
|
uint32_t id; /* Port number */
|
|
uint16_t event; /* The kind of control event (see below) */
|
|
uint16_t value; /* Extra information for the key */
|
|
};
|
|
|
|
/* Some events for control messages */
|
|
#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
|
|
|
|
#endif /* _VIRTIO_CONSOLE_H */
|