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s390x/3270: Add emulated terminal3270 device

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This is a basic implementation of the emulated ccw-attached 3270
called x-terminal3270, which provides visibility of the device in
the qemu monitor and guest. The x prefix indicates that this is
just an experimental implementation for the current stage. This
device will not be compiled until the basic functions are available.

Signed-off-by: Yang Chen <bjcyang@linux.vnet.ibm.com>
Signed-off-by: Jing Liu <liujbjl@linux.vnet.ibm.com>
Reviewed-by: QingFeng Hao <haoqf@linux.vnet.ibm.com>
Reviewed-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Yang Chen 2016-02-19 10:45:26 +01:00 committed by Cornelia Huck
parent ff20b0a3d8
commit b847620540
1 changed files with 54 additions and 0 deletions
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54
hw/char/terminal3270.c Normal file
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/*
* Terminal 3270 implementation
*
* Copyright 2017 IBM Corp.
*
* Authors: Yang Chen <bjcyang@linux.vnet.ibm.com>
* Jing Liu <liujbjl@linux.vnet.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at
* your option) any later version. See the COPYING file in the top-level
* directory.
*/
#include "qemu/osdep.h"
#include "hw/s390x/3270-ccw.h"
typedef struct Terminal3270 {
EmulatedCcw3270Device cdev;
} Terminal3270;
#define TYPE_TERMINAL_3270 "x-terminal3270"
static void terminal_init(EmulatedCcw3270Device *dev, Error **errp)
{
static bool terminal_available;
if (terminal_available) {
error_setg(errp, "Multiple 3270 terminals are not supported.");
return;
}
terminal_available = true;
}
static void terminal_class_init(ObjectClass *klass, void *data)
{
EmulatedCcw3270Class *ck = EMULATED_CCW_3270_CLASS(klass);
ck->init = terminal_init;
}
static const TypeInfo ccw_terminal_info = {
.name = TYPE_TERMINAL_3270,
.parent = TYPE_EMULATED_CCW_3270,
.instance_size = sizeof(Terminal3270),
.class_init = terminal_class_init,
.class_size = sizeof(EmulatedCcw3270Class),
};
static void register_types(void)
{
type_register_static(&ccw_terminal_info);
}
type_init(register_types)