1 /*
2 * QEMU Parallel PORT (ISA bus helpers)
3 *
4 * These functions reside in a separate file since they also might be
5 * required for linking when compiling QEMU without CONFIG_PARALLEL.
6 *
7 * Copyright (c) 2003 Fabrice Bellard
8 *
9 * SPDX-License-Identifier: MIT
10 */
11
12 #include "qemu/osdep.h"
13 #include "sysemu/sysemu.h"
14 #include "hw/isa/isa.h"
15 #include "hw/qdev-properties.h"
16 #include "hw/char/parallel-isa.h"
17 #include "hw/char/parallel.h"
18 #include "qapi/error.h"
19
parallel_init(ISABus * bus,int index,Chardev * chr)20 static void parallel_init(ISABus *bus, int index, Chardev *chr)
21 {
22 DeviceState *dev;
23 ISADevice *isadev;
24
25 isadev = isa_new(TYPE_ISA_PARALLEL);
26 dev = DEVICE(isadev);
27 qdev_prop_set_uint32(dev, "index", index);
28 qdev_prop_set_chr(dev, "chardev", chr);
29 isa_realize_and_unref(isadev, bus, &error_fatal);
30 }
31
parallel_hds_isa_init(ISABus * bus,int n)32 void parallel_hds_isa_init(ISABus *bus, int n)
33 {
34 int i;
35
36 assert(n <= MAX_PARALLEL_PORTS);
37
38 for (i = 0; i < n; i++) {
39 if (parallel_hds[i]) {
40 parallel_init(bus, i, parallel_hds[i]);
41 }
42 }
43 }
44
isa_parallel_set_iobase(ISADevice * parallel,hwaddr iobase)45 void isa_parallel_set_iobase(ISADevice *parallel, hwaddr iobase)
46 {
47 ISAParallelState *s = ISA_PARALLEL(parallel);
48
49 parallel->ioport_id = iobase;
50 s->iobase = iobase;
51 portio_list_set_address(&s->portio_list, s->iobase);
52 }
53
isa_parallel_set_enabled(ISADevice * parallel,bool enabled)54 void isa_parallel_set_enabled(ISADevice *parallel, bool enabled)
55 {
56 portio_list_set_enabled(&ISA_PARALLEL(parallel)->portio_list, enabled);
57 }
58