1d1afd9ff7
The real SuperI/O chips emulated by QEMU allow for relocating and enabling or
disabling their SuperI/O functions via software. So far this is not implemented.
Prepare for that by adding isa_parallel_set_{enabled,iobase}.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-Id: <20240114123911.4877-10-shentey@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
/*
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* QEMU Parallel PORT (ISA bus helpers)
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*
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* These functions reside in a separate file since they also might be
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* required for linking when compiling QEMU without CONFIG_PARALLEL.
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* SPDX-License-Identifier: MIT
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*/
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#include "qemu/osdep.h"
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#include "sysemu/sysemu.h"
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#include "hw/isa/isa.h"
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#include "hw/qdev-properties.h"
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#include "hw/char/parallel-isa.h"
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#include "hw/char/parallel.h"
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#include "qapi/error.h"
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static void parallel_init(ISABus *bus, int index, Chardev *chr)
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{
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DeviceState *dev;
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ISADevice *isadev;
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isadev = isa_new(TYPE_ISA_PARALLEL);
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dev = DEVICE(isadev);
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qdev_prop_set_uint32(dev, "index", index);
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qdev_prop_set_chr(dev, "chardev", chr);
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isa_realize_and_unref(isadev, bus, &error_fatal);
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}
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void parallel_hds_isa_init(ISABus *bus, int n)
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{
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int i;
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assert(n <= MAX_PARALLEL_PORTS);
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for (i = 0; i < n; i++) {
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if (parallel_hds[i]) {
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parallel_init(bus, i, parallel_hds[i]);
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}
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}
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}
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void isa_parallel_set_iobase(ISADevice *parallel, hwaddr iobase)
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{
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ISAParallelState *s = ISA_PARALLEL(parallel);
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parallel->ioport_id = iobase;
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s->iobase = iobase;
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portio_list_set_address(&s->portio_list, s->iobase);
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}
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void isa_parallel_set_enabled(ISADevice *parallel, bool enabled)
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{
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portio_list_set_enabled(&ISA_PARALLEL(parallel)->portio_list, enabled);
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}
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